CN108106316A - For the lazy-tongs of slide and with its pull component and refrigerator - Google Patents

Abstract

The invention provides a synchronous mechanism for slide rails, the slide rails include slide rail brackets and moving slide rails arranged in parallel, and the synchronizing mechanism includes: a pair of gears, respectively rotatably arranged on the opposite inner sides of the pair of moving slide rails Rear part; connecting rod, which spans between the slide rails, and its two ends are respectively connected with a pair of gears; a pair of racks are respectively arranged on a pair of slide rail brackets, and meshed with a pair of gears respectively; the deviation of the gears The inner side of the moving slide rail is formed with a connecting sleeve to allow the connecting rod to be inserted and connected to the connecting sleeve; the front ends of a pair of racks along the pulling direction are provided with a toothless section, so that when the moving slide rail is opposite to the slide rail bracket When pulled forward to the limit position, a pair of gears is disengaged from a pair of racks in the toothless section. The synchronization mechanism of the present invention can adjust the positional relationship between the gears on both sides for synchronization and their corresponding racks at the initial position of the slide rail, so that the gears on both sides can always maintain a concentric state during the push-in process of the slide rail, ensuring that both sides Synchronous operation of slide rails.

Description

Synchronization mechanism for sliding rails, drawing part and refrigerator with same

technical field

The invention relates to the technical field of slide rails, in particular to a synchronous mechanism for slide rails.

Background technique

The existing slide rail assemblies used in drawers and other pull-out parts may be out of sync due to uneven force during the process of being pushed and pulled, which may cause the pull-out parts to swing when pushed and pulled, and the usability is not good. The synchronization mechanism used in the slide rail assembly in the prior art has limited effect by connecting the moving slide rails in the slide rail assemblies on both sides to force the slide rails on both sides to move synchronously, and when the slide rails are out of sync, the existing synchronization Mechanisms may cause more serious misalignment of the slide rails. In addition, because the synchronous mechanism is often in an abnormal stress state, some of its components and parts are easily damaged and difficult to replace, which reduces its practicability.

Contents of the invention

An object of the present invention is to provide a synchronization mechanism which improves the synchronization of both sides of the slide rail.

A further object of the present invention is to enable the synchronizing mechanism to have a self-adjusting function, so as to adjust the moving state of the sliding rail when the two sides of the sliding rail are not synchronized.

Another further object of the invention is to simplify the assembly of the slide rails and the synchronizing mechanism.

In particular, the present invention provides a synchronization mechanism for slide rails, the slide rails include a pair of slide rail brackets arranged in parallel and a pair of moving slide rails arranged on the pair of slide rail brackets, the Synchronization mechanisms include:

a pair of gears, which are respectively rotatably arranged at the opposite inner rear parts of the pair of moving slide rails;

a connecting rod spanning between the slide rails, and its two ends are respectively connected to the pair of gears so that the pair of gears rotate synchronously;

A pair of racks are respectively arranged on the pair of slide rail brackets, and are respectively meshed with the pair of gears; wherein

A connecting sleeve is formed on the inner side of the gear away from the moving slide rail to allow the connecting rod to be inserted into and connected to the connecting sleeve;

The installation direction of the pair of racks is consistent with the push-pull direction of the moving slide rail relative to the slide rail bracket, and the length of the rack corresponds to the push-pull stroke of the slide rail; and

The front ends of the pair of racks along the pull-out direction are all provided with toothless sections, so that when the moving slide rail is pulled forward to the limit position relative to the slide rail bracket, the pair of gears will The toothless section disengages from the pair of racks.

Further, both ends of the connecting rod are configured to have a non-circular cross-section; and

At least part of the inner shaft hole of the connecting sleeve is configured to have the non-circular cross-section, so as to prevent the connecting rod from rotating relative to the connecting sleeve.

Further, the synchronization mechanism also includes:

The stop snap ring is configured as a ring with an opening, so as to be snapped on the outside of the connecting sleeve; wherein

A through hole is opened on the sleeve wall of the connecting sleeve of at least one of the gears;

The stop snap ring has a stop rod, the stop rod is configured to extend from the inner surface of the snap ring toward the circular center of the stop snap ring, and when the stop snap ring snaps to the Insert the through hole when connecting the sleeve to limit the axial movement of the connecting rod.

Further, the synchronization mechanism also includes:

A pair of fixing seats are respectively fixed on the inner rear parts opposite to the pair of moving slide rails;

A pair of supporting bushings are respectively installed on the pair of fixed seats, and are arranged so that their central axes are respectively perpendicular to the pair of fixed seats; wherein

Each of the support sleeves has a first end facing the corresponding fixing seat and a second end facing away from the corresponding fixing seat;

Each of the fixing seats is provided with a receiving hole, at least part of the edge of the receiving hole is provided with a shielding portion, and is configured to extend from the part of the edge to the inside of the receiving hole on the inner side of the fixing seat, so as to shielding a portion of the receiving hole; and

The first end of each support sleeve is detachably engaged in the receiving hole of the corresponding fixing base, and the second end is rotatably connected to the corresponding gear.

Further, the accommodating hole is configured as an elongated square hole, and the front-end hole wall of the square hole along the pulling-out direction and part of the upper-end hole wall and part of the lower-end hole wall connected to the front-end hole wall are configured to automatically The plane where the receiving hole is located extends toward the inner side of the fixing seat to form a stop wall closed on three sides;

The extension ends of the stop wall formed by extending the part of the upper hole wall and the part of the lower hole wall are bent and extended toward each other, so as to form two opposite blocking parts inside the fixing seat.

Further, the outside of the first end of the support sleeve is in the shape of a square step, and has a bottom plate portion and a connecting portion located inside the bottom plate portion;

The first end is configured such that, when the bottom plate is fully inserted into at least part of the receiving hole, the bottom plate and the connecting portion are respectively attached to any one of the shielding portions along two mutually perpendicular directions. conflict.

Further, the rear part of the square hole along the pull-out direction is formed with an interference part that can be moved under force and reset when the force is released, and the interference part is arranged forward from the rear hole wall and toward the fixed The inner side of the seat extends obliquely to the rear of the stop wall;

The extension end of the conflicting portion is bent toward the outside of the fixing seat and continues to extend to the interface between the fixing seat and the moving slide rail, so as to form a conflicting end penetrating through the receiving hole; and

The conflicting portion is configured to be forced to move toward the fixing seat into the plane where the receiving hole is located, so as to allow the bottom plate to be inserted into the receiving hole from the rear to the front, and the bottom plate is completely embedded in the receiving hole. After the accommodating hole is opened, it can be reset and the conflicting end can be restored to the rear of the stop wall, so as to prevent the bottom plate part from detaching from the accommodating hole.

Further, an annular boss is formed on the outside of the second end of the support sleeve;

An annular concave cavity is formed on the outer side of the gear towards the moving slide rail, and a plurality of hooks are formed on the bottom of the annular concave cavity, and are configured to rotatably engage with the annular boss, so as to rotatably mounted on the moving slide rail through the support sleeve fixed on the fixed seat; and

The plurality of hooks are located on an imaginary ring concentric with the annular cavity.

The present invention also provides a drawing part, which is installed with the slide rail according to any one of the above and a synchronization mechanism for the slide rail, wherein,

Supporting irons are respectively provided on both lateral sides of the drawing part to connect the pair of moving slide rails; or

The pair of moving slide rails are respectively arranged on lateral sides of the drawing member, and are configured to be directly connected and fixed to the drawing member through a connecting piece.

The present invention also provides a refrigerator, comprising a box body defining a storage space, a pull-out component arranged in the box body, a slide rail according to any one of the above-mentioned slide rails, and a synchronization mechanism for the slide rail, in,

The slide rail bracket is fixed inside the box;

The drawing component is mounted on the moving slide rail and is configured to be controlled to move horizontally into or out of the storage space.

The synchronization mechanism for slide rails of the present invention can adjust the positional relationship between the gears on both sides for synchronization and their corresponding racks at the initial position of pushing the slide rails, so that the gears on both sides are always maintained during the push-in process of the slide rails. The concentric state ensures the synchronous operation of the slide rails on both sides.

Further, the synchronous mechanism of the present invention makes when the moving slide rail is pulled out from the slide rail bracket, the gears and racks respectively connected to the two are not meshed, thus, when the moving slide rail is pushed into the slide rail bracket again , The meshing or contact position of the rack and pinion on one side can be adjusted with the position of the rack and pinion on the other side, so that the synchronous mechanism can realize self-adjustment of meshing and positioning.

Further, the synchronous mechanism of the present invention simplifies the assembly of the connecting rod and the connecting bush through the stop snap ring, and is applicable to slide rails with different pitches, which enhances the flexibility and practicability of the synchronous mechanism used for slide rails .

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

1 is a schematic perspective view of a slide rail and a synchronizing mechanism according to one embodiment of the present invention;

Fig. 2 is a schematic partial enlarged view of the slide rail and the synchronization mechanism shown in Fig. 1;

Figure 3 is a schematic perspective view of a side slide rail according to one embodiment of the present invention;

Figure 4 is a schematic exploded view of a synchronization mechanism according to an embodiment of the present invention;

Figure 5 is a schematic perspective view of a rack according to one embodiment of the present invention;

6 is a partial schematic cross-sectional view of a synchronization mechanism according to an embodiment of the present invention;

7 is a partial schematic cross-sectional view of a synchronization mechanism according to another embodiment of the present invention;

Fig. 8 is a schematic side view of a fixing base and a supporting sleeve according to an embodiment of the present invention;

Fig. 9 is a schematic sectional view taken along line A-A in Fig. 8;

Fig. 10 is a schematic structural diagram of a drawing part according to an embodiment of the present invention;

Fig. 11 is a partial schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Fig. 12 is a partial schematic structural diagram of a refrigerator in another state according to an embodiment of the present invention.

Detailed ways

FIG. 1 is a schematic perspective view of a slide rail and a synchronization mechanism according to one embodiment of the present invention. Fig. 2 is a schematic partial enlarged view of the slide rail and the synchronizing mechanism shown in Fig. 1 . The slide rail generally includes a pair of slide rail brackets 101 arranged in parallel and a pair of moving slide rails 102 arranged on the pair of slide rail brackets 101 . The synchronization mechanism may include a pair of gears 201 , a link 203 connecting the pair of gears 201 , and a pair of racks 202 . Specifically, the pair of gears 201 can be rotatably disposed on the opposite inner rear parts of the pair of moving slide rails 102 . The connecting rod 203 can be configured to straddle between the slide rails, and two ends of the connecting rod 203 are respectively connected to a pair of gears 201 to make the pair of gears 201 rotate synchronously. The pair of racks 202 can be respectively disposed on the pair of slide rail brackets 101 and configured to mesh with the pair of gears 201 respectively.

Fig. 3 is a schematic perspective view of a side slide rail according to one embodiment of the present invention. Referring to FIG. 3 , the installation direction of a pair of racks 202 can be configured to be consistent with the push-pull direction of the moving slide rail 102 relative to the slide rail bracket 101 , and the length of the racks 202 corresponds to the push-pull stroke of the slide rail.

Fig. 4 is a schematic exploded view of a synchronization mechanism according to one embodiment of the present invention.

Referring to FIG. 4 , a connecting sleeve 201f is formed on the inner side of the gear 201 facing away from the moving slide rail 102 to allow the connecting rod 203 to be inserted and connected to the connecting sleeve 201f.

It should be noted that the "inner side" mentioned above and the "outer side" which will appear later both refer to relative positions. Specifically, the slide rail generally has a transverse center plane of symmetry, and a pair of slide rail brackets 101 and a pair of moving slide rails 102 are configured to be symmetrical with respect to the center plane of symmetry, with a slide rail bracket 101 and a pair of slide rail brackets 101 and A mobile slide rail 102. Therefore, unless otherwise specified, the side of each component of the synchronous mechanism facing or close to the transverse central symmetry plane is the "inner side", and the side away from or away from the transverse central symmetry plane is the "outer side". These terms are only for the convenience of describing and understanding the technical solutions of the present invention, rather than indicating or implying that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

FIG. 5 is a schematic perspective view of a rack 202 according to one embodiment of the present invention. In particular, the front ends of the pair of racks 202 in the synchronous mechanism of the present invention are provided with toothless sections 202a along the pull-out direction, so that when the moving slide rail 102 is pulled forward to the limit position relative to the slide rail bracket 101, The pair of gears 201 are disengaged from the pair of racks 202 at the toothless section 202a. That is to say, in the limit state of pulling out, the gear 201 can move in multiple directions relative to the rack 202 without being limited by the meshing of the teeth.

In the prior art, when the moving slide rails 102 are pulled out and then pushed back to the slide rail bracket 101, since the lateral distance between a pair of moving slide rails 102 is generally relatively large, it is easy for the slide rails on both sides to be out of sync. The phenomenon. In the prior art, the synchronization of the slide rails is performed by adding a combination of a gear 201 and a rack 202 that is always meshed to the slide rails, but in this case, if the gear 201 and the rack 202 on one side are connected to the other The meshing positions of the gear 201 on the side and the rack 202 do not correspond, which will aggravate the asynchronous phenomenon of the slide rail, and even damage the slide rail.

The synchronous mechanism of the present invention makes when the moving slide rail 102 is pulled out from the slide rail bracket 101, the gear 201 and the rack 202 respectively connected to the two are not meshed, and the rack 202 does not limit the rotation or moving direction of the gear 201. Thus, when the moving slide rail 102 is pushed into the slide rail bracket 101 again, the meshing or contact position of the rack 202 of the gear 201 on one side can be adjusted according to the position of the rack 202 of the gear 201 on the other side. More precisely, the meshing or contact positions of the gears 201 and the racks 202 on both sides can be mutually influenced and adjusted, so that the synchronous mechanism realizes self-adjustment of meshing positioning.

Specifically, if the slide rail is inclined due to uneven thrust, the gear 201 on one side of the moving slide rail 102 is engaged with the rack 202 earlier than the gear 201 on the other side of the moving slide rail 102, and the gear 201 on the moving side of the meshing side The rack 202 will generate certain resistance to prevent the gear 201 from continuing to rotate when the direction of rotation of the gear 201 is skewed. At this time, because the other side gear 201 is not meshed with the rack 202, it will not be resisted, so it can easily continue to rotate until the other side gear 201 is also meshed with the rack 202 and meshed with the previous one. The gears 201 are located at the same lateral position. After self-adjustment, the two gears 201 that have been positioned at the same horizontal position can both rotate synchronously to the rear end of the rack 202 through the connecting rod 203 while maintaining the meshing state, thereby ensuring the synchronization of sliding of the slide rails on both sides To avoid the problem that the meshing position of the gear 201, the rack and the rack 202 cannot correspond due to the asynchrony of the sliding rails on both sides at the initial position of pushing in (that is, the limit position of pulling out).

The synchronization mechanism for the slide rail of the present invention can adjust the positional relationship between the gears 201 on both sides and their corresponding racks 202 for synchronization at the initial position of the slide rail, so that the gears 201 on both sides can be pushed in during the push-in process of the slide rail. The center is always kept in a concentric state to ensure the synchronous operation of the slide rails on both sides.

In some embodiments of the present invention, the rear ends of the pair of racks 202 along the pull-out direction are provided with a toothless section 202a, so that when the moving slide rail 102 is pushed back to the limit position relative to the slide rail bracket 101, The pair of gears 201 are disengaged from the pair of racks 202 at the toothless section 202a. That is to say, each rack 202 has a toothless section 202a at the front and rear ends. The function of the toothless section 202a at the rear end is similar to that of the toothless section 202a at the front end.

Specifically, in the synchronous mechanism of the prior art, when the sliding door body (or drawer front cover and other structures) guided by the sliding rails is tilted due to the asynchrony of the sliding rails, in some cases the moving sliding rails 102 It can still slide to the rear end of the slide rail bracket 101 under the push of a relatively large external force. But because the drawing door is always in the inclined state, when one side of the door has returned to the closed position, the other side of the door can not be completely closed due to the staggered teeth of the gear 201 rack 202 and the resistance on one side of the closed door. That is to say, the door on one side is attached to the box body 1 and there is a gap between the door on the other side and the box body 1 .

Different from the prior art, the toothless section 202a at the rear end of the rack 202 of the synchronous mechanism of the present invention allows the gear 201 to move or rotate freely, that is, the resistance force on one side of the closed door body can promote the unclosed door almost without resistance. The gears 201 on one side of the door body are moved to the correct meshing position, thereby adjusting the gears 201 on both sides to be in the same horizontal position, so as to ensure that the doors on both sides can be closed normally.

In some embodiments of the present invention, the toothless section 202a can be configured to allow the gear 201 to rotate freely when the projection of the rotation center of the gear 201 on the rack 202 is located in the middle of the toothless section 202a. That is to say, the toothless section 202a has a space allowing the gear 201 to rotate freely in situ, so that the gear 201 can realize misalignment adjustment in the lateral direction through free rotation.

Fig. 6 is a partial schematic cross-sectional view of a synchronization mechanism according to an embodiment of the present invention. Fig. 7 is a partial schematic cross-sectional view of a synchronization mechanism according to another embodiment of the present invention.

In some embodiments of the present invention, the connecting sleeve 201f is formed on the inner side of the gear 201 away from the moving slide rail 102 to allow the connecting rod 203 to be inserted and connected to the connecting sleeve 201f. Further, both ends of the connecting rod 203 are configured to have a non-circular cross-section. At least part of the inner shaft hole of the connecting sleeve 201f is configured to have a non-circular cross-section to prevent the connecting rod 203 from rotating relative to the connecting sleeve 201f, thereby ensuring that the gears 201 on both sides of the connecting rod 203 always rotate synchronously.

Referring to FIG. 4 to FIG. 6 , in some embodiments of the present invention, the synchronization mechanism further includes a stop snap ring 500 . The stop snap ring 500 can be configured as a ring with an opening, so as to be snapped on the outside of the connecting sleeve 201f. The stop snap ring 500 can also have a stop rod 501 . Correspondingly, a through hole 201g is opened on the sleeve wall of the connecting sleeve 201f of at least one gear 201 . The stop rod 501 can be configured to extend from the surface of the inner ring of the snap ring toward the circular center of the stop snap ring 500 , and be inserted into the through hole 201g when the stop snap ring 500 is snapped to the connecting sleeve 201f to limit the movement of the connecting rod 203 . axial movement.

In this embodiment, the connecting bushings 201f of the two gears 201 may have different lengths, that is, the connecting rod 203 may be inserted deeper into the connecting bushing 201f of one gear 201, and it is located at the other side of the gear 201. The rod body in the connecting shaft sleeve 201f can be shorter. Further, the through hole 201g may be disposed on one side of the longer connecting sleeve 201f.

The stop snap ring 500 and the connecting sleeve 201f of the synchronization mechanism of the present invention can simplify the assembly of the connecting rod 203 and the two gears 201, especially when the distance between the two gears 201 is already fixed. Specifically, during the assembly process, the connecting rod 203 can be inserted into the longer connecting sleeve 201f and moved to this side until the other end of the connecting rod 203 moves to the inner side of the opening of the shorter connecting sleeve 201f. When the other end of the connecting rod 203 is opposite to the opening of the shorter connecting shaft sleeve 201f, the connecting rod 203 can move to the other side until it is inserted into the end of the shorter connecting shaft sleeve 201f, completely contradicting the side gear 201 . At this time, the stop snap ring 500 is clamped on the longer connecting sleeve 201f to prevent the connecting rod 203 from continuing to move to the longer connecting sleeve 201f, so as to realize the axial positioning of the connecting rod 203 .

Further, in some embodiments of the present invention, a plurality of through holes 201g at different positions may be opened on the connecting sleeve 201f to accommodate different fixed distances between the two gears 201 .

The synchronous mechanism of the present invention simplifies the assembly of the connecting rod 203 and the connecting shaft sleeve 201f through the stop snap ring 500, and is applicable to slide rails with different spacings, which enhances the flexibility and practicability of the synchronous mechanism used for the slide rails .

Fig. 8 is a schematic side view of the fixing base 300 and the supporting sleeve 400 according to one embodiment of the present invention. FIG. 9 is a schematic cross-sectional view taken along line A-A in FIG. 8 .

Referring to FIG. 4 , FIG. 8 and FIG. 9 , in some embodiments of the present invention, the synchronization mechanism further includes: a pair of fixing seats 300 and a pair of supporting bushings 400 . The pair of fixing bases 300 can be respectively fixed on the opposite inner rear portions of the pair of moving slide rails 102 . A pair of supporting bushings 400 can be installed on a pair of fixing seats 300 respectively, and are arranged such that their central axes are perpendicular to the pair of fixing seats 300 respectively. Each supporting sleeve 400 may have a first end 401 facing the corresponding fixing seat 300 and a second end 402 facing away from the corresponding fixing seat 300 . That is, each gear 201 is rotatably mounted on a support sleeve 400, and is mounted on a fixed base 300 through the support sleeve 400, and is further mounted on a moving slide rail through the fixed base 300 102 on.

In some embodiments of the present invention, each fixing seat 300 is provided with a receiving hole 301, at least part of the edge of the receiving hole 301 is provided with a shielding part 301b, and is configured to extend from part of the edge to the receiving hole 301 on the inner side of the fixing seat 300. Extending inside, the receiving hole 301 is divided by the shielding portion 301b. The first end 401 of each support sleeve 400 is detachably engaged in the receiving hole 301 of the corresponding fixing seat 300 , and the second end 402 is rotatably connected with the corresponding gear 201 .

The gear 201 of the present invention is indirectly connected with the moving slide rail 102 through the supporting sleeve 400 and the fixed seat 300, so that each component can be manufactured separately, which simplifies the manufacturing process. In particular, since the last step of installation of the gear 201 can be realized by the fixed base 300 through any general connecting piece, the flexibility of the installation position of the gear 201 is enhanced, and the synchronization mechanism of the present invention is applicable to various slide rails. In addition, compared with directly forming the bushing for mounting the gear 201, the mobile slide rail 102 of the present invention, which only needs to be connected with the fixed seat 300, greatly reduces the requirements for the strength of the material used, thereby greatly reducing the manufacturing cost, and It enables the manufacturer to have a greater range of choices when selecting materials for the slide rail.

In some embodiments of the present invention, the accommodating hole 301 is configured as an elongated square hole, and the front end wall of the square hole along the pull-out direction and part of the upper end hole wall and part of the lower end hole wall connected to the front end hole wall are configured to be self-contained. The plane where the hole 301 is located extends toward the inside of the fixing seat 300 to form a stop wall 301a closed on three sides. Further, the extension ends of the stopper wall 301 a formed by extending part of the upper hole wall and part of the lower hole wall are bent and extended toward each other, so as to form two opposite shielding parts 301 b inside the fixing seat 300 .

That is to say, the supporting sleeve 400 of the present invention can be embedded and clamped on the fixing base 300 without additional connecting parts, and fixed to the moving slide rail 102 through the fixing base 300 , which simplifies the assembly of the synchronization mechanism.

In some embodiments of the present invention, the outside of the first end 401 of the support sleeve 400 is in the shape of a square step, and has a bottom plate portion 401 a and a connecting portion 401 b located inside the bottom plate portion 401 a. The first end 401 can be configured such that when the bottom plate 401a is fully inserted into at least a part of the receiving hole 301 , the bottom plate 401a and the connecting portion 401b respectively fit and interfere with any shielding portion 301b along two mutually perpendicular directions. That is to say, after the first end 401 of the support sleeve 400 is inserted into the receiving hole 301, the stepped bottom plate portion 401a and the connecting portion 401b can be simultaneously restricted by the shielding portion 301b to move in two perpendicular directions to completely The bottom plate portion 401 a is locked in the receiving hole 301 .

Further, the support sleeve 400 can also be configured such that the end surface of the second end 402 close to the first end 401 has a size larger than the cross-section of the connecting portion 401b, so that the bottom plate portion 401a and the second end 402 close to the first end The end surfaces of 401 are respectively clamped on both sides of the shielding part 301b, and at the same time, the connecting part 401b also abuts against the shielding part 301b in the other direction, which further enhances the clamping strength of the support sleeve 400 and the fixing seat 300, and prevents the bottom plate part 401a from Disengage from the receiving hole 301 in a direction substantially perpendicular to the fixing seat 300 .

In some embodiments of the present invention, the outer surface of the shielding portion 301b facing the receiving hole 301 may be located in the same plane as the inner surface of the fixing seat 300 . That is to say, the shielding portion 301b can be configured to just cover the inner surface of the receiving hole 301, so that the bottom plate portion 401a embedded in the receiving hole 301 and the fixing seat 300 form a flat board surface, so that the peripheral sides of the bottom plate are all in contact with the fixing seat. 300 is in contact with each other, which enhances the connection strength between the support sleeve 400 and the fixing base 300, and makes the fixed installation of the two more compact.

In some embodiments of the present invention, the rear part of the square hole along the pull-out direction is formed with a resisting part 301c that can be moved under force and can be reset when the force is released. The inner side of the seat 300 extends obliquely to the rear of the stopper wall 301a. The extension end of the conflicting portion 301 c is bent toward the outside of the fixing seat 300 and continues to extend to the interface between the fixing seat 300 and the moving slide rail 102 to form a conflicting end penetrating through the receiving hole 301 .

Further, the conflicting portion 301c is configured to be able to move towards the fixing seat 300 into the plane of the receiving hole 301 under force, so as to allow the bottom plate portion 401a to be inserted into the receiving hole 301 from the rear to the front, and after the bottom plate portion 401a is completely embedded in the receiving hole 301 , can reset and restore the conflicting end to the rear of the stop wall 301a to prevent the bottom plate 401a from disengaging from the receiving hole 301 and prevent the bottom plate 401a from disengaging from the receiving hole 301 in a direction substantially parallel to the fixing seat 300 .

In some embodiments of the present invention, an annular boss 403 is formed on the outside of the second end 402 of the support sleeve 400 . An annular concave cavity 201a is formed on the outer side of the gear 201 facing the moving slide rail 102, and a plurality of hooks 201c are formed on the cavity bottom 201b of the annular concave cavity 201a, and are configured to rotatably engage with the annular boss 403 to pass The supporting sleeve 400 fixed on the fixed base 300 is rotatably installed on the moving slide rail 102 . Specifically, the plurality of hooks 201c are located on an imaginary ring concentric with the annular cavity 201a.

The second end 402 of the support sleeve 400 can be inserted into the annular cavity 201a so that the upper annular boss 403 engages with the hook 201c, that is, the second end 402 is entirely or at least mostly located in the annular cavity 201a to protect the connecting portion 401b of the support sleeve 400 and the gear 201 , shorten the distance between the gear 201 and the fixing seat 300 , and reduce the torque on the support sleeve 400 . Further, the annular boss 403 supporting the second end 402 of the sleeve 400 can be configured such that its outer peripheral surface has a certain inclination angle. Specifically, the cross-sectional area of the annular boss 403 close to the cavity bottom 201b is smaller than the cross-sectional area of the place away from the cavity bottom 201b, so that the hook 201c can gradually move along the outer peripheral surface of the annular boss 403 during the locking process. Bending outwards and returning after the locking is completed, so as to prevent the hook 201c from detaching from the annular boss 403 without external force.

Correspondingly, the plurality of hooks 201c of the gear 201 can also be configured such that the contact surface between the heads of the hooks 201c and the annular boss 403 has a certain inclination angle. Specifically, the contact surface can be arranged parallel to the outer peripheral surface of the annular boss 403 , that is, the boundary line between the two and any sectional plane passing through the central axis of rotation is parallel to each other. Thus, the resistance in the process of the clip hook 201c clipping to the annular boss 403 is further reduced.

In some embodiments of the present invention, the number of the hooks 201c is four, which are arranged to be distributed on an imaginary circle at even intervals. The hook 201c is configured to extend perpendicularly to the cavity bottom 201b to no more than the outer end face of the gear 201, and the end of the hook 201c is bent toward the center of the imaginary ring so as to align with the convexity of the annular boss 403 toward the first end 401. The platform is clamped, so as to limit the axial movement of the gear 201 relative to the support sleeve 400 .

In some embodiments of the present invention, the interior of the support sleeve 400 is in an annular stepped shape, and is configured such that the inner hole 4020 of the second sleeve located inside the second end 402 is larger than the first sleeve located inside the first end 401 The inner hole 4010 forms an inner boss 4030 at the inner junction of the first end 401 and the second end 402 .

Further, an axial column 201d is formed on the cavity bottom 201b of the gear 201, which is arranged concentrically with the imaginary ring inside the imaginary ring, and has an outer diameter equal to the inner diameter of the second sleeve inner hole 4020, To be inserted into the inner hole 4020 of the second bushing 400 concentrically with the supporting bushing 400 , the size fit of the two can limit the radial movement of the axial column 201 d after being inserted into the inner hole 4020 of the second bushing.

That is to say, the synchronous mechanism of the present invention realizes double central positioning through the cooperation of the annular boss 403 and the hook 201c and the configuration of the inner hole 4020 of the second bushing and the shaft center column 201d, which is convenient for the gear 201 and the supporting bushing 400 to be aligned. Assembled, and because the hook 201c has a certain degree of elasticity, its position is relatively flexible, which can avoid the occurrence of over-positioning problems.

In some embodiments of the present invention, the second end 402 of the support sleeve 400 has a limiting portion 404 that protrudes from the end surface of the annular boss 403 away from the support sleeve 400, and is configured to be inserted into the second shaft at the shaft center column 201d. Behind the inner hole 4020 of the sleeve, it is against the bottom 201b of the annular cavity 201a to limit the axial movement of the gear 201 relative to the support sleeve 400 . The limiting portion 404 may be configured as a partial ring. Specifically, it can be two sections of arc protrusions oppositely arranged, and the end surface near the annular cavity 201a has a smaller cross-sectional area, so as to reduce the contact area with the cavity bottom 201b and reduce the resistance of the gear 201 to rotate.

In some embodiments of the present invention, the inner boss 4030 can also restrict the axial movement of the gear 201 under certain circumstances. Specifically, the axial column 201d can be further configured to maintain a certain distance from the inner hole 4010 of the first sleeve after being inserted into the inner hole 4020 of the second sleeve, that is, not to contact the inner boss 4030 . Thus, when the gear 201 rotates normally, the axial column 201 d does not contact the inner boss 4030 , so as to reduce the resistance of the gear 201 to rotate. When the limiting portion 404 cannot effectively interfere with the cavity bottom 201b, the axial column 201d can abut against the inner boss 4030 to prevent the gear 201 from moving in the axial direction.

In some embodiments of the present invention, the outer portion of the inner boss 4030 (roughly the connecting portion 401b of the first end 401 ) may roughly correspond to the shielding portion 301b of the fixing seat 300 . That is to say, the outer side of the inner boss 4030 can just be configured to have a recess, so as to engage with the shielding portion 301b.

Fig. 10 is a schematic structural diagram of a drawer 10 according to an embodiment of the present invention. The present invention also provides a drawing component 10, which is installed with the aforementioned slide rail and a synchronization mechanism for the slide rail. In some embodiments of the present invention, support irons are respectively provided on both lateral sides of the drawing member 10 to connect a pair of moving slide rails 102 . In some other embodiments of the present invention, a pair of moving slide rails 102 may be respectively disposed on lateral sides of the drawing member 10 and configured to be directly connected and fixed to the drawing member 10 through a connecting piece.

Fig. 11 is a partial schematic structural diagram of a refrigerator according to an embodiment of the present invention. Fig. 12 is a partial schematic structural diagram of a refrigerator in another state according to an embodiment of the present invention. The present invention also provides a refrigerator, which includes a box body 1 defining a storage space and the aforementioned pull-out component 10 . Specifically, the slide rail bracket 101 can be fixed inside the box body 1 . The drawer 10 is mounted on the moving slide rail 102 and is configured to move horizontally into or out of the storage space in a controlled manner.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of lazy-tongs for slide, the slide includes a pair of of the sliding rail rack being arranged in parallel and is arranged at described one To a pair of of shifting sledge on sliding rail rack, the lazy-tongs include：

A pair of of gear is rotatablely arranged at the opposite inside back of the pair of shifting sledge respectively；

Connecting rod is across between the slide, and its both ends is connected respectively with the pair of gear, so that the pair of gear is same Step rotates；

A pair of of rack is respectively arranged on the pair of sliding rail rack, and is meshed respectively with the pair of gear；Wherein

The gear is formed with connecting bushing on the inside of the shifting sledge, the connecting rod to be allowed to be inserted into and is connected to The connecting bushing；

The installation direction of the pair of rack is consistent compared with the push-and-pull direction of the sliding rail rack with the shifting sledge, and institute The length for stating rack is corresponding with the push-and-pull stroke of the slide；And

The front end of the pair of rack along pull-out direction is both provided with anodontia section, in the relatively described slide of the shifting sledge When stent is drawn out to forward extreme position, the pair of gear is made to depart from the pair of rack in the anodontia section.

2. according to the lazy-tongs described in claim 1, wherein,

Two ends of the connecting rod are each configured to noncircular cross section；And

Axis hole is configured to have the noncircular cross section on the inside of at least part of the connecting bushing, opposite to avoid the connecting rod It is rotated in the connecting bushing.

3. according to the lazy-tongs described in claim 2, further include：

Backstop snap ring is configured to the annular with opening, to be connected to the outside of the connecting bushing；Described in wherein at least one Through hole is offered on the axle sleeve wall of the connecting bushing of gear；

The backstop snap ring has gear-stopping bar, and the gear-stopping bar is configured to from the snap ring inner peripheral surface towards the backstop snap ring The extension of the annular center of circle, and the through hole is inserted into when the backstop snap ring is connected in the connecting bushing, to limit the company The axial movement of bar.

4. lazy-tongs according to claim 1, further include：

A pair of of fixed seat is individually fixed in the opposite inside back of the pair of shifting sledge；

A pair of of support sleeve is respectively arranged in the pair of fixed seat, is arranged to make its center axis to be respectively perpendicular to described A pair of of fixed seat；Wherein

Each support sleeve is respectively provided with one towards the first end of the corresponding fixed seat and away from corresponding described solid The second end of reservation；

Each fixed seat offers receiving hole, and at least part edge of the receiving hole is provided with occlusion part, and configures Into in the inside of the fixed seat from the part edge to the internal stretch of the receiving hole, with receiving described in shield portions Hole；And

The first end of each support sleeve is removably connected in the receiving hole of the corresponding fixed seat, The second end is rotatably coupled with the corresponding gear.

5. according to the lazy-tongs described in claim 4, wherein,

The receiving hole is configured to elongated square hole, the square hole along the pull-out direction front end hole wall and with the front aperture The part upper end hole wall and part lower end hole wall of wall connection are configured on the inside of from plane where the receiving hole to the fixed seat Extension, to form the stop wall that three side sealing closes；

The extending end of the stop wall extended to form by part upper end hole wall and part lower end hole wall is curved in opposite directions Folding extension, to form two opposite occlusion parts on the inside of the fixed seat.

6. according to the lazy-tongs described in claim 5, wherein,

The outside of the first end of the support sleeve be square it is stepped, and with base plate and in the base plate The connecting portion of side；

The first end is configured to, when the base plate be completely embedded at least partly the receiving hole when, make the base plate and The connecting portion is bonded conflict with any occlusion part along two mutually orthogonal directions respectively.

7. according to the lazy-tongs described in claim 6, wherein,

The rear portion of the square hole along the pull-out direction be formed with it is force-applied move and release the reducible abutting portion of stress, it is described Abutting portion is configured to extend to forward and to inclination on the inside of the fixed seat rear of the stop wall from rear end hole wall；

The extending end of the abutting portion is to bending on the outside of the fixed seat and continues to extend to the fixed seat and the movement The interface of slide, to be formed through the conflict end of the receiving hole；And

The abutting portion be configured to it is force-applied be moved to the receiving hole towards the fixed seat where plane in, to allow It states base plate and is inserted into the receiving hole from back to front and after the base plate is completely embedded into the receiving hole, can reset simultaneously The conflict end is made to recover to positioned at the rear of the stop wall, the base plate to be prevented to depart from the receiving hole.

8. according to the lazy-tongs described in claim 4, wherein,

The second end of the support sleeve is externally formed with annular convex platform；

Annular cavity is formed on the outside of the direction shifting sledge of the gear, is formed on the bottom of chamber of the annular cavity Multiple grabs, and be configured to rotationally be clamped with the annular convex platform, to pass through the branch being fixed in the fixed seat Support axle sleeve is rotatably installed on the shifting sledge；And

Multiple grabs are respectively positioned on the imaginary annulus of one concentric with the annular cavity.

9. a kind of pull component, be equipped with according to any slide in claim 1 to 8 with for the synchronous of the slide Mechanism, wherein,

The both lateral sides of the pull component are respectively arranged with branch iron brace, to connect the pair of shifting sledge；Or

The pair of shifting sledge is respectively arranged at the both lateral sides of the pull component, and be configured to by connector with it is described Pull component is directly connected to fix.

10. a kind of refrigerator, including defining the babinet of storage space, being arranged at the in vivo pull component of the case and according to right It is required that any slide and the lazy-tongs for the slide in 1 to 8, wherein,

The sliding rail rack is fixed on the box house；

The pull component is installed on the shifting sledge, and being configured to can controlled level immigration or the horizontal removal storing sky Between.