CN105935209A - Furniture sliding rail buffer and furniture sliding rail applying same - Google Patents

Abstract

The invention relates to a furniture slide rail buffer and the furniture slide rail used therein. The buffer includes a buffer base and a release device, a buffer base slider and a base, a return spring, a damping buffer, a self-locking connecting buckle; a self-locking The connecting buckle includes a first rotating joint part and a lower hook arm arranged front and rear, the head end of the slider is provided with a second rotating joint part, and a trap is provided on the tail end of the base. When the self-locking connecting buckle moves backwards to allow the lower hook arm to move back to the top of the trap, the lower hook arm can rotate downwards and extend into the trap, so that the first slide-out joint also sinks, and the sunken first slide-out The joint part can avoid the retreating second slide-out joint part so that the second slide-out joint part can continue to move backward over the first slide-out joint part, after which the release device can disengage from the self-locking connecting buckle. Because the present invention has the above-mentioned features and advantages, it can be applied to furniture slide rail buffers and furniture slide rails to which it is applied.

Description

Furniture slide rail buffer and furniture slide rail applied thereto

technical field

The present invention relates to a buffer capable of automatic reset, in particular to a buffer applied on a furniture slide rail. The slide rail moves to the inside and automatically closes the drawer, but the closing process will not be too strong, which not only reduces the closing noise and impact, but also greatly improves the user's good feeling of using the furniture.

Background technique

Existing slide rails and buffers used there are many types of structures, the most typical technical structures are, for example, patent applications with application numbers 201120141149.3, 201120338842.X, 201320638108.4, 201420038872.2, and 201420340704.9. In these types of technical solutions, a furniture slide rail buffer that can be installed in the outer rail is provided, and the furniture slide rail buffer also includes a slider and a base that are arranged up and down and are plugged together. , a return spring connected between the base and the slider, a damping buffer capable of buffering the resilience of the return spring, and a self-locking connecting buckle capable of locking the base and the slider , also includes an unlocking device. The problem that often occurs in the use of the guide rails installed with these furniture slide rail buffers is that when the slide rails have been closed, the inner side end of the inner rail of the slide rails is easy to lift and break away from the furniture slide rail buffers, so that when the drawer is drawn Sometimes the entire drawer shakes very violently from side to side, and even derails. For this reason, how to improve the structure of the furniture slide rail buffer to further improve the stability of the slide rail is a problem that we need to further improve.

Contents of the invention

In order to improve the problems existing in the prior art and further improve the running stability of the slide rail, the present invention proposes a brand-new furniture slide rail buffer, including a buffer base and a release device, and the buffer base includes an upper , the sliding block and the base that are arranged and plugged together with each other, the return spring connected between the base and the sliding block, and the damping buffer that can buffer the resilience of the return spring, can The base and the slider are locked with a self-locking connection buckle, and the slider is axially slid and installed on the base; its features are:

(a) The self-locking connecting buckle includes a first rotating joint part and a lower hook arm arranged front and rear, and the head end of the slider is provided with a second rotating joint part, and the self-locking connecting buckle passes through the The first rotating joint part is rotatably connected to the second rotating joint part of the slider, the plane of the rotation track of the self-locking connecting buckle is roughly perpendicular to the upper surface of the slider, and the lower hook arm is located on the The lower part of the self-locking connecting buckle and can be hooked to the base;

(b) A trap that can avoid the lower hook arm and a hook arm joint that can be combined with the lower hook arm are provided on the tail end of the base. When the slider slides backward on the base When the lower hook arm reaches the position of the trap, the lower hook arm can rotate downward to extend into the trap and hook the joint of the hook arm so as to lock the slider to prevent its reverse reset;

(c) An upper hook arm and a first slide-out junction are arranged on the back of the self-locking connecting buckle front and rear, and the upper hook arm has a plug-in structure so that objects plugged into it cannot be pulled out upwards. The first slide-out joint is located above the lower hook arm;

(d) The release is roughly in the shape of a plate and can be fixedly connected to the slide rail, and the release includes a front fork arm that can be inserted into the upper hook arm and a front fork that can be combined with the first slide-out joint The second slide-out joint part; when the release moves forward and the front fork arm is inserted into the upper hook arm, the front fork arm can carry the self-locking connecting buckle and the slide The block moves forward but cannot disengage upwardly from the upper hook arm, and the second slide-out joint engages and passes the first slide-out joint when the release is retracted Can move backward with the self-locking connecting buckle and the slider;

(e) When the tripper moves backwards with the self-locking connecting buckle and the lower hook arm moves backward to the top of the trap, the lower hook arm can rotate downwards and extend into the trap. The trap and the first slide-out joint sink accordingly, and the sunken first slide-out joint can avoid the retreating second slide-out joint so that the second slide-out joint can pass The first slide-out joint portion continues to move backward, after which the release device can disengage from the self-locking connecting buckle.

Among them, the front and rear mentioned in the present invention refer to the relative directions determined based on the moving direction of the slide rail. The inner end of the slide rail installed in the furniture is also the front end of the furniture slide rail buffer, and vice versa. end or end. When the middle rail or the inner rail in the slide rail moves to the inner end, it shrinks the slide rail, that is, the drawer is closed, and vice versa, the drawer is opened. The up and down mentioned in the present invention are also relative azimuth positions.

Wherein, the slider and the base, which are arranged up and down and are plugged and connected together, mainly define the relative positional relationship and relative connection relationship between the slider and the base. Since there is a plug connection relationship, for Just have a part of wall body or mechanism to intersperse together between them. Secondly, the limiter provided between the slider and the base is mainly used to limit the maximum stroke when the relative axial sliding between them is disengaged, so the limiter can be unilaterally arranged on the On the slider or the base, it can also be set on the slider and the base in a paired manner at the same time.

Wherein, the return spring and the damping buffer are a pair of contradictory combinations, and the damping buffer is mainly to buffer the resilience of the returning spring so that the slider moves inwardly on the base. Do not use too much force and speed when resetting and moving; the damping buffer is generally made of a buffer cylinder, a buffer oil cylinder or a buffer spring.

Wherein, the self-locking connecting buckle includes a first rotating joint part and a lower hook arm arranged front and rear, mainly defining the relative position between the first rotating joint part and the lower hook arm on the self-locking connecting buckle relationship and there is a certain distance between them so that the lower hook arm can rotate with the first rotating joint part as the fulcrum of the moment arm.

Wherein, the lower hook arm is located at the lower part of the self-locking connecting buckle and hooks to the base, which mainly defines the relative position of the lower hook arm on the self-locking connecting buckle and the ability to hook to the bottom of the self-locking connecting buckle. The function and purpose of the above-mentioned base also define the structure of the lower hook arm, which has a structure capable of hooking the base so as to lock the slider and prevent its reverse reset. For this reason, the lower hook arm itself has a hook-shaped structure and the bending direction of the bent arm body is toward the front end of the base.

Wherein, the tail end of the base is provided with a trap capable of avoiding the lower hook arm and a hook joint part capable of combining the lower hook arm, which mainly defines the relationship between the tail end of the base and the lower hook arm. The structure of the part where the hook arm is combined; the trap part combined with the lower hook arm can be a pit-like structure, or a completely open structure or a through-hole structure, as long as the lower hook arm can Just enter it, for this reason the technical feature "avoidance" is also a synonym for "accommodating", "receiving", or "letting it enter"; the hook arm joint part combined with the lower hook arm is actually able to The lower hook arm forms a hooked connection part, so that the lower hook arm can also hook it when it is inserted into the trap, for example, the walls around the trap, especially around the trap, are close to the trap. The wall in the front direction.

Wherein, on the back of the self-locking connecting buckle, an upper hook arm and a first slide-out joint are arranged front and rear, which mainly define the position of the upper hook arm and the first slide-out joint on the self-locking connecting buckle. The setting position and the relative position relationship between the upper hook arm and the first slide-out joint on the self-locking connecting buckle have a certain distance between them, and also define that the upper hook arm is also a kind that can Implement the structure of Hook Street.

Wherein, the upper hook arm has a plug-in structure so that the object plugged on it cannot be disengaged upwards, which mainly defines whether the upper hook arm and the object plugged on it, such as the front fork arm to be mentioned below, are connected to each other. The connection structure that can be had together, that is, if the upper hook arm is combined with the lower hook arm, the upper hook arm cannot be disengaged upward; the structural way to realize this can be a mutual insertion structure in the horizontal direction, or an inclined plane plug structure.

Wherein, the first slide-out joint is located above the lower hook arm, and mainly defines the relative positional relationship between the first slide-out joint and the lower hook arm on the self-locking connecting buckle , the first slide-out joint portion may be located directly above the lower hook arm, or there may be a slight offset in the front-rear direction. Since the first slide-out joint is located above the lower hook arm, when the self-locking connecting buckle rotates to allow the lower hook arm to enter the trap and sink, the first slide-out The joint part can also sink and move accordingly and obtain a sinking stroke, so that when there is a large range of cross height between the first slide-out joint part and the second slide-out joint part in the horizontal direction. An escape space avoiding the second slide-out joint can be formed.

Wherein, the tripper is roughly plate-shaped and can be fixedly connected to the slide rail, which mainly defines that the overall shape of the tripper is roughly plate-shaped, and also defines that the tripper can be fixedly connected A member on the slide rail, the release can be fixed to the slide rail through a connecting handle provided on the release or a mounting hole provided on the release in combination with a rivet-like connecting piece connection, and the connection handle is a connection part provided on the release that can form a connection with the slide rail.

Wherein, the release includes a front fork arm that can be inserted into the upper hook arm, and when the release moves forward and the front fork arm is inserted into the upper hook arm, the front fork arm The yoke can move forward with the self-locking connecting buckle and the slider but cannot escape upwards from the upper hook arm. Firstly, it mainly defines the function and connection structure that the front fork arm of the tripper can be plugged into the upper hook arm, and the front fork arm has a function that cannot be removed upward after being inserted into the upper hook arm. structure, so that the inner side end of the inner rail installed on the release device will not be tilted, and on this basis, the front fork arm can also pull the self-locking connecting buckle to move forward.

Wherein, the release includes a second slide-out joint capable of combining with the first slide-out joint, and when the release moves backward, the second slide-out joint combines with the first slide-out joint. out of the joint and move backward with the self-locking connecting buckle and the slider through the first sliding out of the joint. This feature defines the structure in which the second slide-out joint part and the first slide-out joint part can be combined together, and defines that the second slide-out joint part can pull and push the self-locking connecting buckle when it retreats Back function and structure. In addition, when the front fork arm of the release is inserted into the upper hook arm and the second slide-out joint is combined with the first slide-out joint, the first slide-out joint The second slide-out joint part is pressed against from the back, so that the first slide-out joint part can restrict the release device from easily disengaging upward from the upper hook arm.

Wherein, the sinking first slide-out joint part can avoid the second slide-out joint part so that the second slide-out joint part can continue to move backward over the first slide-out joint part. The release device can break away from the self-locking connecting buckle. This feature firstly defines at least the relative engagement structure between the first slide-out joint part and the second slide-out joint part and the avoidance structure when retreating. A combined structure of protruding protruding columns arranged one behind the other. Secondly, this feature also at least defines a connection structure between the front fork arm and the upper hook arm that can be plugged in and can be relatively separated when moving backward.

Since the sunken first slide-out joint can avoid the second slide-out joint, the sinking stroke of the first slide-out joint is at least equal to the distance between the first slide-out joint and the second slide-out joint. The height range of the front and rear cross-lap joints between the two slide-out joints in the horizontal direction.

According to the above technical solution, (1) when the inner rail and the tripper connected to it move forward (inner end) above the slider or above the self-locking connecting buckle, the The front fork arm of the release can be inserted into the upper hook arm of the self-locking connecting buckle without upward disengagement. Next, give the self-locking connecting buckle a moment to move forward so that the self-locking connecting buckle turns upwards slightly and the lower hook arm turns upward slightly, and then the connection between the lower hook arm and the base During release, the second slide-out joint is also combined with the first slide-out joint to ensure that the release will not break away from the upper hook arm even if the release stops in the middle and advances the front fork arm. The return spring can carry the slider, and the slider carries the self-locking connecting buckle through the first rotating joint part and the second rotating joint part, and the self-locking connecting buckle passes through the The first slide-out joint part and the second slide-out joint part carry the release device, and the release device moves forward and resets together with the inner rail connected thereto, wherein the damping buffer is in turn The rebound speed of the return spring can be buffered. During the time when the front fork arm is inserted into the upper hook arm, the front fork arm cannot disengage from the upper hook arm, so that the inner side end of the inner rail connected to the release device cannot go upward. Tilting, so that the inner side of the inner rail is always attached to the middle rail, so that the gap between the inner rail and the middle rail will not be enlarged, thereby greatly improving the stability of the slide rail sex.

(2) When the inner rail moves backward with the tripper combined with the self-locking connecting buckle, the second slide-out joint part pushes the first slide-out joint part backward Thereby driving the self-locking connection buckle and the slider connected thereto to slide backward on the base, but when the lower hook arm of the self-locking connection buckle moved back to the top of the trap, the lower The hook arm can rotate downwards into the trap so that the first slide-out joint sinks, and the sunken first slide-out joint avoids the second slide-out joint so that all The second slide-out joint portion continues to move backward over the first slide-out joint portion, after which the front fork arm of the release begins to disengage from the upper hook arm of the self-locking connecting buckle, and the second slide-out joint portion The joint part can further press down the first slide-out joint part while passing over the first slide-out joint part, and then further allow the lower hook arm to rotate downwards and extend into the trap to hook the Hook junction. Then the inner rail and the tripper on it are completely disengaged from the self-locking connecting buckle and move toward the outer end.

A further technical solution may also be that an axial chute with an upward opening is provided on the base, the self-locking connecting buckle is located above the axial chute, and the lower hook arm of the self-locking connecting buckle fall into the axial chute and rest on the groove bottom wall of the axial chute, the trap is arranged at the tail end position of the groove bottom wall of the axial chute, combined with the trap The bottom wall of the groove forms the joint of the hook arm.

Wherein, the bottom wall of the groove combined with the trap refers to the bottom wall of the groove located at the side of the trap, and also refers to the protruding wall body extending into the space where the trap is located. The lower hook arm of the self-locking buckle in the trap can be hooked to the wall. According to the above technical solution, through the axial chute, not only the structural strength of the base can be improved, but also the axial movement trajectory of the self-locking connecting buckle and the upper and lower hook arms can be guided and limited, without Will swing left and right due to force.

A further technical solution may also be that the second rotating joint is a rotating shaft, the first rotating joint is a fork arm that can be hinged on the second rotating joint, and the second rotating joint passes through A pair of connecting brackets is connected to the head end of the slider, and the second rotating joint portion and the pair of connecting brackets are located above the axial sliding groove or directly extend into the axial sliding groove. In this way, the self-locking connecting buckle can be rotatably positioned by means of a pair of connecting brackets.

A further technical solution may also be that the axial sliding groove is provided with a blocking portion capable of limiting the axial sliding stroke of a pair of connecting brackets, and a pair of connecting brackets and the blocking portion are jointly matched to form the base A limiter for limiting the relative maximum sliding distance between them and the slider.

A further technical solution may also be that an axial corridor corresponding to the upper and lower sides of the axial chute is also provided on the slider, the self-locking connecting buckle is arranged in the axial corridor and the The lower hook arm of the self-locking connecting buckle extends from the axial corridor into the axial sliding groove.

A further technical solution may also include a pair of left and right fences forming the axial corridor, the rear ends of the pair of fences are combined with the fence joint at the rear end of the slider, The top surfaces of a pair of fence bodies are higher than the upper surface where the fence joints are located. In this way, when the tripper moves toward the front end of the slide block and enters above the slide block, at least the second slide-out joint part arranged below the tripper can be positioned between a pair of the fences. Move in the described axial corridor that body constitutes, and described side fin that will mention below can indeed slide and overlap and move on the fence body of described axial corridor. This not only stabilizes but also greatly improves the structural strength of the slider, and reduces the thickness of the entire buffer of the furniture slide rail.

A further technical solution may also be that the upper part of the release is also provided with side fins, and the side fins extend out of at least one fence body of the axial corridor, when the release is in the When the upper part of the sliding block slides back and forth, the side fins slide and overlap on the fence body of the axial corridor.

A further technical solution may also be that a lateral protruding column is further provided between the lower hook arm of the self-locking connecting buckle and the first rotating joint part, and the lateral protruding column is aligned with the The rotation plane of the self-locking connection buckle extends in a direction perpendicular to the direction, and the lateral protruding column can be pressed against the bottom of the fence body so that the upward turning of the self-locking connection buckle is restricted by the lateral protruding column. angle.

A further technical solution may also be that the upper hook arm has a bent wall, the bent wall of the upper hook arm is facing opposite to the direction of the lower hook arm, and the front end of the front fork arm has a The bent wall of the fits the sloped face. Wherein, the direction of the bent wall surface of the upper hook arm is opposite to that of the lower hook arm, which mainly defines the direction of the bent wall surface of the upper hook arm, and its direction is the same as that of the bent arm body of the lower hook arm. The bending direction is opposite, that is, the bending wall of the upper hook arm is towards the tail end of the base

A further technical solution may also be that the first sliding joint part on the self-locking connecting buckle is an upwardly protruding upper bump, and the second sliding joint part on the release device is a downward protruding The lower projection, the upper hook arm on the self-locking connecting buckle, which is arranged front and rear, and the first slide-out joint part have an upper empty groove with an opening facing upward. When the upper surface of the locking buckle moves forward, the front fork arm of the tripper and the second sliding joint part can be accommodated in the upper hollow groove.

A further technical solution may also be that the front fork arm of the release extends downwards to form an extension, and a first recess is provided between the extension and the second slide-out joint portion, and the There is also a second recess behind the second slide-out joint part, and the first slide-out joint part on the self-locking connection buckle can not only be inserted into the second recess but also can be inserted into the first recess .

A further technical solution may also be that a buffer receiving groove with an opening facing downward is arranged axially on the base, the buffer receiving groove is adjacent to and parallel to the axial slide groove, and the damping buffer The main body of the damping buffer is accommodated in the buffer receiving groove, and the shaft end of the output shaft of the damping buffer is connected to the tail end of the slider. This adjacent structure with the notches facing oppositely can not only facilitate the installation of components thereon, but also greatly improve the mechanical strength of the base while simplifying the structure.

A further technical solution may also be that an axial avoidance channel capable of avoiding the side wall of the furniture slide rail is provided on the left and right sides of the slider, and the self-locking connecting buckle is located on the left and right The area between the axial avoidance channels.

A further technical solution may also include a transverse buffer plate, the transverse buffer plate is located at the axial end of the tail end of the slider and one end of the transverse buffer plate is fixed at the tail end of the slider. The other end is a free end.

A further technical solution may also include an outer rail, a middle rail, and an inner rail that are roughly in the shape of a U-shaped groove, the middle rail is axially slidably arranged in the U-shaped groove of the outer rail, and the middle rail is connected to the U-shaped groove. The slots of the outer rails are facing the same direction, the inner rail is axially slid in the U-shaped groove of the middle rail and the slots of the middle rail and the inner rail are facing oppositely; it is characterized in that it also includes For the furniture slide rail buffer, the buffer base of the furniture slide rail buffer is set in the U-shaped groove at the inner side of the outer rail, and the release is connected to the In the U-shaped groove at the inner end of the inner rail.

Because the present invention has the above-mentioned features and advantages, it can be applied to furniture slide rail buffers and furniture slide rails to which it is applied.

Description of drawings:

Fig. 1 is the exploded schematic diagram of the furniture slide rail applying described furniture slide rail buffer of the present invention;

Fig. 2 is an exploded schematic view of the furniture slide rail buffer applying the present invention;

Fig. 3 is a schematic diagram of the buffer base applying the furniture slide rail buffer of the present invention;

Fig. 4 is a schematic view of the front structure of the slider in the buffer base of the present invention;

Fig. 5 is a schematic view of the reverse structure of the slider in the buffer base of the present invention;

Fig. 6 is a 45° side view structural schematic diagram of the self-locking connecting buckle in the buffer base applied to the present invention;

Fig. 7 is a front and side structural schematic view of the self-locking connecting buckle in the buffer base applied to the present invention;

Fig. 8 is a schematic diagram of the lower structure of the release in the buffer base of the present invention;

Fig. 9 is a 45° side view structural schematic diagram of the release in the buffer base applying the present invention;

Fig. 10 is a schematic front and side structural view of the release in the buffer base applying the present invention;

Fig. 11 is a schematic side view of the cooperative relationship between the self-locking connection buckle and the tripper in the buffer base applied to the present invention when moving forward;

Fig. 12 is a schematic side view of the cooperative relationship between the self-locking connection buckle and the release device in the buffer base applied to the present invention when moving backward;

Fig. 13 is a schematic diagram of the reverse structure of the base in the buffer base applied to the present invention;

Fig. 14 is a schematic view of the front structure of the base in the buffer base of the present invention.

detailed description

The specific implementation of the furniture slide rail buffer and the furniture slide rail applied thereto will be further described below in conjunction with accompanying drawings 1 to 14 .

As shown in Figure 1, the slide rail 100 designed in this embodiment includes an outer rail 5, a middle rail 6, and an inner rail 7 that are roughly U-shaped, and also includes a furniture slide buffer, and the furniture slide buffer The device includes a buffer base 101 arranged in the U-shaped groove at the inner end of the outer rail 5 and a release device 3 arranged in the U-shaped groove at the inner end of the inner rail 7, and the release device 3 includes Connecting handle 36, described connecting handle 36 is provided with connecting hole 30, through described connecting hole 30 on described connecting handle 36 combined with rivet, connects the installation that is provided on the groove bottom wall of the inner side end U-shaped groove of described inner rail 7 The hole 70 is used to fix and install the tripper 3 directly on the groove bottom wall of the U-shaped groove at the inner side of the inner rail 7 . The middle rail 6 is axially slidably arranged in the U-shaped groove of the outer rail 5 and the slots of the middle rail 6 and the outer rail 5 have the same orientation, and the inner rail 7 is axially slidably arranged in the U-shaped groove of the outer rail 5. In the U-shaped groove of the middle rail 6 and the slots of the middle rail 6 and the inner rail 7 are facing oppositely.

Wherein, the front and rear mentioned in this embodiment refer to relative directions determined based on the moving direction of the slide rail, and the inner end of the slide rail installed in the furniture is also the front end of the furniture slide rail buffer, and vice versa. The back end or tail end. When the middle rail 6 or the inner rail 7 in the slide rail moves to the inner side, the slide rail shrinks, that is, the drawer is closed, otherwise the drawer is opened. The up and down mentioned in the embodiment of the present invention are also relative azimuth positions, and the mentioned axial direction also refers to the direction in which the track of the slide rail or the slider is located.

As shown in FIG. 2 , the buffer base 101 includes a base 1 and a slider 2 arranged up and down and plugged and connected to each other, connected between the base 1 and the slider 2 and located on both sides Position return springs (11, 12) and damping buffers 13 that can buffer the resilience of the return springs (11, 12), self-locking connections that can lock the base 1 and the slider 2 buckle 4; the slider 2 is axially slidably installed on the base 1, as shown in Fig. 4, Fig. 5 and Fig. Limiters (190, 290) for relative sliding away from maximum travel.

The return springs (11, 12) and the damping buffer 13 are a pair of contradictory combinations, and the damping buffer 13 is mainly to buffer the resilience of the return springs (11, 12) so that the When the slide block 2 resets and moves inwardly on the base 1, the force should not be too strong and the speed should not be too fast, so as to not only reduce the closing noise but also greatly improve the comfort and friendliness of use, and the damping buffer 13 adopts The buffer cylinder has a main body 131 and an output shaft 132. Of course, the damping buffer 13 can also be made of a buffer cylinder or a buffer spring. As shown in Figure 2, the front ends of the return springs (11, 12) are positioned on the positioning seats (110, 120) of the base 1, and the tail ends of the return springs (11, 12) are positioned on the slide on the positioning seat (210, 220) of block 2.

The specific implementation structures of the base 1 , the slider 2 , the tripper 3 and the self-locking connecting buckle 4 of the present invention will be further described step by step below.

First, about the base 1.

The base 1 is roughly T-shaped and includes an axial main body 10, and the base 1 is inserted on both sides of the slider 2 through two side wings (181, 182) arranged on both sides of the axial main body 10. In the insertion slots (281, 282); in fact, other arrangements can be made for the relative insertion connection structure between the base 1 and the slider 2, not just the implementation structure of this embodiment. The limiter provided between the slider 2 and the base 1 is mainly used to limit the maximum stroke when the axial relative sliding is disengaged between them. For this reason, the limiter can be unilaterally arranged on the The slider 2 or the base 1 can also be arranged on the slider 2 and the base 1 in a paired manner as in this embodiment.

As shown in FIG. 2 , a buffer receiving groove 14 with an opening facing downward is provided on the base 1 , the main body 131 of the damping buffer 13 is accommodated in the buffer receiving groove 14 , and the damping buffer The shaft end of the output shaft 132 of 13 is clamped and connected to the positioning card 200 at the tail end of the slider 2 . In this way, when the slider 2 retracts on the base 1 , the damping buffer 13 can form a recovery buffer moment, reducing the recovery speed of the slider 2 .

As shown in FIG. 14 , one of the stoppers 190 forming the limiter is provided at the rear end position opposite to the groove wall 140 of the buffer receiving groove 14 of the base 1 , correspondingly in FIG. 2 , As shown in FIG. 3 , FIG. 4 and FIG. 5 , another stopper 290 is provided on the slider 2 , and the stopper 190 is paired with the stopper 290 to form a first limiter A. In this way, when the slider 2 axially slides out of the base 1, the stopper 290 can be blocked by the stopper 190 so as to limit the maximum sliding out of the slider 2 on the base 1 ( slide off) travel.

As shown in Fig. 3 and Fig. 14, an axial chute 15 with an upward opening is axially provided on the base 1, and the axial chute 15 is adjacent to and parallel to the buffer accommodating groove 14, but The openings are facing oppositely; this adjacent structure with notches facing oppositely not only facilitates the installation of components thereon but also greatly improves the mechanical strength of the base 1 while simplifying the structure.

A trap 17 is provided at the rear end of the base 1, and the trap 17 is also located at the end of the axial chute 15 (that is, part of the groove bottom wall 150 is removed at the end of the axial chute 15) to become An escape window on the groove bottom wall 150 of the axial sliding groove 15 , combined with the groove bottom wall 150 of the trap, forms a hook arm joint portion 151 capable of forming a connection with the lower hook arm 46 .

As shown in FIGS. 3 and 14 , the end of the axial chute 15 and the groove bottom wall 150 before the trap 17 are provided with a device capable of limiting the axial sliding stroke of the bracket 23 as shown in FIG. 5 . A pair of blocking portions (161, 162), and a transition gap 160 is also provided between the pair of blocking portions (161, 162). The support 23 and the pair of blocking parts ( 161 , 162 ) are paired together to form another limiter B between the base 1 and the slider 2 .

As shown in Fig. 3 and Fig. 14, a base mounting hole 18 is also provided on the transverse main body of the front end of the base 1, and the base 1 is fixedly connected to the outer shell through the base mounting hole 18 and connecting pieces such as rivets. In the U-shaped groove at the inner end of the rail 5.

Second, about the slider 2.

The slider 2 is generally plate-shaped as a whole, as shown in Fig. 2 and Fig. 3, a transverse buffer piece 21 is arranged on the axial end of its tail end, and one end of the transverse buffer piece 21 is fixed on the The tail end of the slider 2 and the other end is a free end. In this way, when the middle rail 6 is contracted, the inner end of the middle rail 6 can abut against the transverse buffer sheet 21 to form a buffer therefor.

As shown in Figure 4, axial avoidance passages (291, 292) capable of avoiding the side walls of the inner rail 7 are also provided on the left and right sides of the slider 2, and the self-locking connecting buckle 4 is located The area between the left and right axial avoidance channels (291, 292). That is to say, when the inner rail 7 shrinks and slides inward, the bottom wall of the groove is located above the slider 2 but the side walls on both sides are inserted into the channels ( 291 , 292 ).

As shown in Fig. 3, Fig. 4 and Fig. 5, an axial corridor 27 corresponding to the upper and lower sides of the axial chute 15 on the base 1 is also provided on the slider 2, the axial The corridor 27 runs through up and down in the up and down direction, and also includes a pair of left and right fences (25, 26) forming the axial corridor 27, and the rear ends of the pair of fences (25, 26) are connected to The fence joint part 28 at the rear end of the slider 2, the top surfaces (250, 260) of a pair of fence bodies (25, 26) are higher than the upper surface where the fence joint part 28 is located, which is convenient for the The tripper 3 slides into the axial corridor 27 from back to front, especially allowing the lower surface of the tripper 3 to slide and overlap the top surfaces of a pair of fence bodies (25, 26) ( 250 , 260 ) but located below the release 3 , the front fork arm 31 and the second slide-out joint 33 can pass through the axial corridor 27 . Secondly, the stopper 290 is also arranged at the tail end of the fence body 25 close to the buffer receiving groove 14 .

When the slider 2 is plugged into the base 1, the buffer receiving groove 14 on the base 1 is located on the side of the fence body 25, and the axial avoidance channel 292 is located on the The buffer accommodates the outer side of the groove bottom wall 140 of the groove 14 .

As shown in Figure 2 and Figure 5, a rotating shaft 24 that can be hinged to the first rotating joint 41 is provided on the front end of a pair of fence bodies (25, 26), and the rotating shaft 24 is connected to the In the slider 2, the bracket 23 includes a pair of connecting brackets (231, 232) arranged left and right. When the slider 2 is plugged into the base 1, the rotating shaft 24 and the bracket 23 extend into the axial chute 15, and when the slider 2 slides out on the base 1 , the rotating shaft 24 and the bracket 23 can slide in the axial sliding groove 15, and when sliding to the end, abut against a pair of blocking parts (161, 162), so that the slider 2 can also be limited. The maximum axial slide-off stroke.

Third, about the self-locking connecting buckle 4.

As shown in Figures 6 and 7, the self-locking connecting buckle 4 includes a first rotating joint part 41 and a lower hook arm 46 arranged front and rear, and as shown in Figure 5, the second rotating joint part 24 is Rotating shaft, the first rotating joint 41 is a fork arm that can be hinged on the rotating shaft 24 so as to have a fork 410, and the self-locking connecting buckle 4 passes through the fork 410 on the first rotating joint 41 Rotationally connected to the rotating shaft 24, so that the self-locking connection button 4 can be rotated and positioned by means of the bracket 23; the rotation track plane of the self-locking connection button 4 is approximately perpendicular to the upper surface of the slider 2. The top of the lower hook arm 46 is conical and is located at the bottom of the self-locking connection buckle 4 and can be hooked to the base 1, wherein the lower hook arm 46 is located at the bottom of the self-locking connection buckle 4 and Hooking to the base 1 mainly defines the relative position of the lower hook arm 46 on the self-locking connecting buckle 4 and the function and purpose of being able to hook to the base 1 in general, and also defines the lower hook arm 46 at the same time. The structure of the hook arm 46 has a structure capable of hooking the base 1 so as to lock the slider 2 and prevent its reverse reset. For this reason, the lower hook arm 46 itself has a hook-shaped structure and the bending direction of the bent arm body is toward the front end of the base 1 .

When the base 1 and the slider 2 are plugged and connected together, the rotating shaft 24 and the bracket 23 extend into the axial sliding groove 15 provided on the base 1, and the self-locking The connecting buckle 4 is located above the axial chute 15, and the lower hook arm 46 of the self-locking connecting buckle 4 extends from the axial corridor 27 into the axial chute 15 and rests on the shaft. On the groove bottom wall 150 of the chute 15 (the groove bottom wall 150 shown in FIG. 13 is the reverse side of the groove bottom wall 150 shown in FIG. 14 ). When the slider 2 slides backward on the base 1 before reaching the maximum travel position, the top tip of the lower hook arm 46 first slides through the gap between the pair of blocking parts (161, 162). The transition gap 160 reaches the position of the trap 17, and the lower hook arm 46 can rotate downwards to extend into the trap 17 and hook the hook arm joint 151 so as to lock the slider 2 to prevent its reverse action. to reset.

On the back of the self-locking connecting buckle 4, an upper hook arm 43 and a first sliding joint 45 are arranged front and rear, the upper hook arm 43 has an inclined bending wall 430, and the orientation of the bending wall 430 is the same as The direction of the lower hook arm 46 is arranged oppositely, the first sliding joint portion 45 is located above the lower hook arm 46 , and the upper hook arm 43 is located above the first rotating joint portion 41 . The bending wall surface 430 of the upper hook arm 43 is oriented opposite to that of the lower hook arm 46 , which mainly defines the orientation of the bending wall surface 430 of the upper hook arm 43 , and its orientation is opposite to that of the lower hook arm 46 . The bending direction of the bending arm body is opposite, and the bending wall surface 430 of the upper hook arm 43 is towards the tail end of the base 1 . Through the configuration of the bent wall surface 430 , the upper hook arm 43 can be combined with the front fork arm 31 of the release 3 so that it cannot be dislodged upward. Of course, in order to realize the function of not going out upward, the upper hook arm 43 and the front fork arm 31 can also be arranged as a structure that can be plugged into each other in the horizontal direction.

As shown in Fig. 6 and Fig. 7, a lateral protruding column 42 is also provided between the lower hook arm 46 of the self-locking connecting buckle 4 and the first rotating joint part 41. The outgoing post 42 extends in a direction perpendicular to the rotation plane of the self-locking connecting buckle 4 and the extended width is greater than the width between a pair of fence bodies (25, 26), as shown in Figure 11, when the When the first rotating joint part 41 is hooked to the second rotating joint part 24, the pair of lateral protruding columns 42 are located under the pair of fence bodies (25, 26) so that they can respectively lean against The underside of the pair of fence bodies (25, 26) of the slider 2 restricts the self-locking connecting buckle 4 and its lower hook arm 46 around the rotating shaft 24 to move around the rotating shaft 24 through the lateral protruding column 42. The upward (the right direction in FIG. 11 is the upward direction) flip angle (or the magnitude of the flip) in the axial corridor 27 described above.

In this embodiment, as shown in FIG. 6 and FIG. 7 , the first slide-out joint 45 on the self-locking connecting buckle 4 is set as an upwardly protruding upper bump, and the upper hook arm 43 and the first slide-out There is an upper empty groove 44 open upwards between the joint parts 45, and the upper empty groove 44 is used for movably combining the tripper 3, as shown in FIG. 11 , when the tripper 3 moves along the self When the upper surface of the lock connecting buckle 4 moves forward (direction A), the front fork arm 31 of the tripper 3 and the second slide-out joint 33 in a downwardly convex shape can extend into the upper space. In the groove 44 , the second slide-out joint portion 33 is located in front of the first slide-out joint portion 45 . Of course, in order to realize the tripping function, an equivalent solution can also be that the first slide-out joint 45 can also be set as a groove-shaped groove, and of course the second slide-out joint on the release 3 33 is correspondingly set as a lower protrusion that can extend into the groove.

Fourth, about the release 3.

As shown in FIG. 2 , FIG. 8 , FIG. 9 and FIG. 10 , the tripper 3 is roughly plate-shaped and can be fixedly connected to the inner rail 7 . The release 3 includes a front fork 31 that can be inserted into the upper hook arm 43 and a second slide-out joint 33 that can be combined with the first slide-out joint 45, the front fork 31 The front end has an inclined surface 311 adapted to the upper hook arm 43, and the second slide-out joint 33 is in a downward convex shape and can extend into the front of the first slide-out joint 45, that is, the second slide-out joint 45. The out joint part 33 and the first slide out joint part 45 are a combined structure of relatively protruding protruding posts arranged in front and back.

Wherein, the front end surface 311 of the front fork arm 31 is in the shape of an inclined plane adapted to the bent wall surface 430 of the upper hook arm 43, so that when the front fork arm of the release 3 is inserted into the self-locking connecting buckle 4, the first slide-out joint 45 is combined behind the second slide-out joint 33, limiting the space for the second slide-out joint 33 to recede, allowing the release Buckle 3 is difficult to back off the upper hook arm 43, and the front fork arm 31 can not be separated from the upper and lower directions by means of the cooperation of two inclined surfaces, and cannot be hooked from the upper hook of the self-locking buckle 4. The arm 43 is upwardly disengaged, and then the inner side end of the described inner rail 7 connected thereto cannot be arbitrarily tilted.

As shown in Figure 8, the horizontal width W of the front fork arm 31 and the second sliding joint portion 33 is smaller than the width between a pair of fence bodies (25, 26), so that the The front fork arm 31 and the second slide-out joint 33 are axially movable in the axial corridor 27 .

As shown in FIG. 10 , the front fork arm 31 of the tripper 3 extends downward to form an extension portion 312 , and a first recess is provided between the extension portion 312 and the second slide-out joint portion 33 32 . A second recess 34 is further provided on the back of the second slide-out joint portion 33 . In application, as shown in FIG. 11 , when the front fork arm 31 of the tripper 3 is inserted into the upper hook arm 43 of the self-locking connecting buckle 4 , the first slide-out joint 45 is actually is inserted into the second recess 34, so that when the tripper 3 retreats, the second slide-out joint 33 pushes the first slide-out joint 45 in front of the first slide-out joint 45. Slide out the joint part 45 so that the self-locking connecting buckle 4 and the slider 2 connected to it also retreat together. The pushing action of the second slide-out joint part 33 fails, and the first slide-out joint part 45 slides into the first recess 32 in sequence, so that the extension part 312 continues to push the The first sliding joint part 45 then continues to push the self-locking connecting button 4 and the sliding block 2 coupled thereto to move backward.

As shown in Figure 12, when the tripper 3 moves back together with the self-locking connecting buckle 4 and the slider 2 connected thereto (direction B in the figure) and when the lower hook arm 46 When moving back to the top of the trap 17, the lower hook arm 46 rotates downward (direction C in the figure) to extend into the trap 17 and hook the hook arm joint 151, and the first slide out joint The part 45 also sinks thereupon, and the sinking first slide-out joint part 45 gradually makes room for the second slide-out joint part 33 to move backward. At this time, the second slide-out joint part 33 Pressing the first slide-out joint 45 further downward while passing over the first slide-out joint 45 causes the lower hook arm 46 to rotate downwards and extend into the trap 17 . Then the front fork arm 31 of the tripper 3 begins to disengage from the upper hook arm 43 of the self-locking connection buckle 4, and the inner rail 7 and the tripper 3 on the inner rail 7 are completely connected with the self-locking connection buckle 4 Move away from the outer end. In order to allow the second slide-out joint 33 to smoothly press down on the first slide-out joint 45, it is best to set the top transition portion of the joint surface between them as a rounded corner, just like a gear The tooth top structure is the same.

The upper part of the tripper 3 is also provided with a side wing 35, and the side wing 35 extends to the left from the left fence body 25 of the axial corridor 27, and allows the side wing 35 to higher than the front fork arm 31 and the second slide out joint 33, so that when the release 3 slides back and forth above the slider 2, the front fork arm 31 and the The second sliding joint part 33 moves in the pair of fence bodies ( 25 , 26 ), and the lower surface of the side flap 35 slides and overlaps on the left fence body 25 of the axial corridor 27 . Of course, the upper part of the tripper 3 is also provided with side flaps 35 which can also extend to the right, or simultaneously extend to both sides.

According to the above technical solution, (1) tripping action process: when the inner rail 7 and the tripper 3 connected to it move forward above the slider 2 or the self-locking connecting buckle 4 (inside end) when moving, the front fork arm 31 of the release 3 can be inserted into the upper hook arm 43 of the self-locking connecting buckle 4, and the front end inclined surface 311 of the front fork arm 31 is combined with the The lower side of the bent wall surface 430 of the upper hook arm 43 gives the self-locking connecting buckle 4 a moment to move forward so that the self-locking connecting buckle 4 turns up slightly and allows the lower hook arm 46 to align with the described self-locking connecting buckle 4 The bases 1 are disconnected. At this time, the second slide-out joint part 33 is also combined in front of the first slide-out joint part 45, and the first slide-out joint part 45 is inserted into the second concave In the pit 34, it is guaranteed that the release device 3 will not break away from the upper hook arm 43 even if the front fork arm 31 stops advancing in the middle; after the release, the return spring (11, 12) can carry the The slider 2, the slider 2 carries the self-locking connecting buckle 4 through the first rotating joint part 41 and the second rotating joint part 24, and the self-locking connecting buckle 4 passes through the first sliding joint The out joint part 45 and the second slide out joint part 33 carry the tripper 3, and the tripper 3 moves forward and resets automatically with the inner rail 7 connected thereto, wherein the damping The buffer 13 can buffer the rebound speed of the return springs (11, 12). During the period when the front fork arm 31 is inserted into the upper hook arm 43, the front fork arm 31 cannot be disengaged upwards from the upper hook arm 43, so that the inner rail 7 connected to the tripper 3 The inner side end of the inner rail 7 cannot be tilted up, so that the inner side end of the inner rail 7 is always attached to the middle rail 6, so that the gap between the inner rail 7 and the middle rail 6 will not be blocked. Enlarging greatly improves the running stability of the slide rail 100 .

(2) Buckle-up action process: when the inner rail 7 moves backward with the release 3 combined with the self-locking connecting buckle 4 , since the first slide-out joint 45 is inserted into the second recess 34, the second slide-out joint part 33 pushes the first slide-out joint part 45 backward so as to drive the self-locking connecting buckle 4 and the slider 2 connected thereto. Slide backward on the base 1, but when the lower hook arm 46 of the self-locking connection buckle 4 moves back to the top of the trap 17, because the lower hook arm 46 can rotate downwards and stretch into the The trap 17 thus sinks the first slide-out joint 45, and the sunken first slide-out joint 45 can avoid the second slide-out joint 33 so that the second slide-out joint Part 33 continues to move backward over the first slide-out joint part 45, at this time the front fork arm 31 of the release 3 starts to disengage from the upper hook arm 43 of the self-locking connecting buckle 4, and the second slide The joint part 33 can further press down the first joint part 45 while passing over the first joint part 45, and further allow the lower hook arm 46 to rotate downwards and extend into the joint. The trap 17 hooks the hook arm joint 151 . Then the inner rail 7 and the tripper 3 on it are completely disengaged from the self-locking connecting button 4 and move to the outer end. When the inner rail 7 and the tripper 3 on it move to the inside again, since the lower hook arm 46 has rotated into the trap 17 and hooked the hook arm joint 151, the The first slide-out joint 45 is also in a sunken position and can avoid the second slide-out joint 33 , so that the tripper 3 can advance in the horizontal direction again and be directly inserted into the self-locking connection buckle 4 Start the tripping process.

Claims (15)

1. Furniture rail buffer, including a buffer base and a release device, the buffer base includes a slider and a base that are arranged up and down and connected to each other, and connected between the base and the slider The return spring between them, the damping buffer that can buffer the resilience of the return spring, and the self-locking connection buckle that can lock the base and the slider, and the slider is axially slidably installed on the On the above-mentioned base; It is characterized in that: (a) The self-locking connecting buckle includes a first rotating joint part and a lower hook arm arranged front and rear, and the head end of the slider is provided with a second rotating joint part, and the self-locking connecting buckle passes through the The first rotating joint part is rotatably connected to the second rotating joint part of the slider, the plane of the rotation track of the self-locking connecting buckle is roughly perpendicular to the upper surface of the slider, and the lower hook arm is located on the The lower part of the self-locking connecting buckle and can be hooked to the base; (b) A trap that can avoid the lower hook arm and a hook arm joint that can be combined with the lower hook arm are provided on the tail end of the base. When the slider slides backward on the base When the lower hook arm reaches the position of the trap, the lower hook arm can rotate downward to extend into the trap and hook the joint of the hook arm so as to lock the slider to prevent its reverse reset; (c) An upper hook arm and a first slide-out junction are arranged on the back of the self-locking connecting buckle front and rear, and the upper hook arm has a plug-in structure so that objects plugged into it cannot be pulled out upwards. The first slide-out joint is located above the lower hook arm; (d) The release is roughly in the shape of a plate and can be fixedly connected to the slide rail, and the release includes a front fork arm that can be inserted into the upper hook arm and a front fork that can be combined with the first slide-out joint The second slide-out joint part; when the release moves forward and the front fork arm is inserted into the upper hook arm, the front fork arm can carry the self-locking connecting buckle and the slide The block moves forward but cannot disengage upwardly from the upper hook arm, and the second slide-out joint engages and passes the first slide-out joint when the release is retracted Can move backward with the self-locking connecting buckle and the slider; (e) When the tripper moves backwards with the self-locking connecting buckle and the lower hook arm moves backward to the top of the trap, the lower hook arm can rotate downwards and extend into the trap. The trap and the first slide-out joint sink accordingly, and the sunken first slide-out joint can avoid the retreating second slide-out joint so that the second slide-out joint can pass The first slide-out joint portion continues to move backward, after which the release device can disengage from the self-locking connecting buckle. 2. The furniture slide rail buffer according to claim 1, characterized in that, an axial chute with an upward opening is arranged on the base, and the self-locking connecting buckle is located above the axial chute , the lower hook arm of the self-locking connecting buckle falls into the axial chute and rests on the groove bottom wall of the axial chute, and the trap is arranged between the groove bottom wall of the axial chute At the tail end position, combined with the groove bottom wall of the trap to form the hook arm junction. 3. The furniture slide rail buffer according to claim 2, wherein the second rotating joint is a rotating shaft, and the first rotating joint is a fork that can be hinged on the second rotating joint mouth arm, the second rotating joint part is connected to the head end of the slider through a pair of connecting brackets, the second rotating joint part and the pair of connecting brackets are located above or above the axial chute directly into the axial slot. 4. The buffer of furniture slide rail according to claim 3, characterized in that, said axial chute is provided with a blocking portion capable of limiting the axial sliding stroke of a pair of said connecting brackets, and a pair of said connecting brackets Cooperating with the blocking part to form a limiter between the base and the slider for limiting the relative maximum sliding distance between them. 5. The furniture slide rail buffer according to claim 2, wherein an axial corridor corresponding to the upper and lower sides of the axial chute is also provided on the slider, and the self-locking connecting buckle The lower hook arm of the self-locking connection buckle is arranged in the axial corridor and extends from the axial corridor into the axial sliding groove. 6. The furniture slide buffer according to claim 5, further comprising a pair of left and right fences forming the axial corridor, the rear ends of the pair of fences are connected to the The fence joint part at the rear end of the slider, the top surface of a pair of fence bodies is higher than the upper surface where the fence joint part is located. 7. The buffer of furniture slide rail according to claim 6, characterized in that, the upper part of the tripper is further provided with a side flap, and the side flap extends out of at least one of the axial corridors As for the fence body, when the tripper slides back and forth above the slider, the side flaps slide and overlap on the fence body of the axial corridor. 8. The buffer of furniture slide rail according to claim 6, characterized in that, a lateral protruding column is also arranged between the lower hook arm of the self-locking connecting buckle and the first rotating joint part , the laterally protruding column extends in a direction perpendicular to the rotation plane of the self-locking connection buckle, and the laterally protruding column can lean against the bottom of the fence body so as to pass through the laterally protruding The column limits the upward turning angle of the self-locking connecting buckle. 9. The furniture slide rail buffer according to claim 1, wherein the upper hook arm has a bent wall surface, and the bent wall surface of the upper hook arm is opposite to the direction of the lower hook arm, and the The front end of the front fork arm has an inclined surface adapted to the bent wall surface of the upper hook arm. 10. The furniture slide rail buffer according to any one of claims 1 to 9, characterized in that, the first sliding-out joint part on the self-locking connection buckle is an upper bump that protrudes upwards, and the tripping The second slide-out joint part on the device is a lower protrusion protruding downward, and there is an opening facing upward between the upper hook arm arranged front and rear on the self-locking connecting buckle and the first slide-out joint part. When the release moves forward along the upper surface of the self-locking connection buckle, the front fork arm of the release and the second slide-out joint can be accommodated in the upper empty slot. 11. The buffer of furniture slide rail according to claim 10, characterized in that, the front fork arm of the tripper extends downward to form an extension part, and the extension part is connected with the second slide-out joint part A first recess is arranged between them, and a second recess is also provided behind the second slide-out joint part. The first slide-out joint part on the self-locking connecting buckle can not only be inserted into the second recess The pit can also be inserted into said first recess. 12. The furniture slide rail buffer according to any one of claims 1 to 9, characterized in that, a buffer receiving groove with an opening facing downward is arranged axially on the base, and the buffer receiving groove is adjacent to And parallel to the axial chute, the main body of the damping buffer is accommodated in the buffer accommodating groove, and the shaft end of the output shaft of the damping buffer is connected to the tail end of the slider. 13. The furniture slide rail buffer according to any one of claims 1 to 9, characterized in that, on the left and right sides of the slider, there are also axial avoidance passages capable of avoiding the side walls of the furniture slide rail , the self-locking connection buckle is located in the area between the left and right axial avoidance passages. 14. The buffer for furniture slide rails according to any one of claims 1 to 9, characterized in that it further comprises a transverse buffer sheet, the transverse buffer sheet is located at the axial end of the tail end of the slider and the transverse buffer sheet One end of the buffer piece is fixed to the tail end of the slider and the other end is a free end. 15. The furniture slide rail installed with the furniture slide rail buffer according to any one of claims 1 to 14, comprising an outer rail, a middle rail and an inner rail roughly in the shape of a U-shaped groove, and the middle rail is axially slidably arranged on the In the U-shaped groove of the outer rail and the notch of the middle rail and the outer rail have the same orientation, the inner rail is axially slid in the U-shaped groove of the middle rail and the middle rail and the The notch of the inner rail faces oppositely; it is characterized in that it also includes the furniture slide rail buffer, the buffer base of the furniture slide rail buffer is set in the U-shaped groove at the inner end of the outer rail, and the detachment The buckle is connected to the U-shaped groove at the inner side of the inner rail through the connecting handle provided thereon.