CN108386084B - Security locks and sliding doors and windows - Google Patents

Abstract

The invention relates to a safety lock and a sliding door and window. The safety lock comprises a lock seat, a lock body, a lock tongue and a shifting block. Wherein the lock seat is provided with a first clamping position and a second clamping position along the push-pull direction of the sliding door and window. The lock body is positioned on one side of the lock seat, a sliding groove is arranged in the lock body, and a notch of the sliding groove faces the lock seat. The lock tongue is slidably inserted into the sliding groove and elastically connected with the lock body, so that the lock tongue can move in a telescopic manner relative to the lock base. When the lock tongue extends to the first clamping position along the sliding groove, the lock tongue is matched with the first clamping position; when the spring bolt extends to the second position along the sliding groove, the spring bolt is matched with the second position. The shifting block is connected to the lock tongue and can move along the telescopic motion direction of the lock tongue relative to the lock body so as to drive the lock tongue to move telescopically relative to the lock base along the sliding groove. Therefore, the sliding door and window using the safety lock can be used more safely.

Description

Security locks and sliding doors and windows

technical field

The invention relates to the technical field of sliding doors and windows, in particular to safety locks and sliding doors and windows.

Background technique

In daily life, sliding doors and windows have been widely used because of their low cost and convenient use. Usually, the sliding doors and windows only have two modes: locking and opening. When opening the sliding doors and windows for ventilation, the degree of opening of the sliding doors and windows can be adjusted at will, which is prone to events such as falling objects from high altitudes, and there is a high safety hazard.

SUMMARY OF THE INVENTION

Aiming at the problem of unsafe use of sliding doors and windows, a sliding door and window and a safety lock are provided.

A safety lock for sliding doors and windows, the safety lock includes:

a lock seat, the lock seat is provided with a first locking position and a second locking position along the sliding direction of the sliding door and window;

a lock body, the lock body is located on one side of the lock seat, a chute is provided in the lock body, and the notch of the chute faces the lock seat;

The lock tongue is slidably inserted into the chute, and the lock tongue is elastically connected with the lock body, so that the lock tongue can move relative to the lock seat. When the lock tongue extends to the first position along the chute, the lock tongue is matched with the first position; when the lock tongue extends to the second position along the chute , the locking tongue is matched with the second locking position;

A dial block, which is connected to the lock tongue and can move relative to the lock body in the direction of telescopic movement of the lock tongue, so as to drive the lock tongue to extend and retract relative to the lock base along the chute sports.

In one embodiment, the lock body is provided with a sliding port that communicates with the sliding slot, the dial is penetrated through the sliding port and is detachably connected to the lock tongue, and the dial can be Slide along the slide.

In one embodiment, the lock tongue is provided with a slot opposite to the sliding port, the dial is provided with a buckle portion facing the lock tongue, and the buckle portion is connected to the slot. match.

In one embodiment, the first latching position includes a first latching slot, the second latching position includes a second latching slot, and when the locking tongue is opposite to the first locking slot, the locking tongue can be movably penetrates or exits the first card slot; when the lock tongue is opposite to the second card slot, the lock tongue can movably penetrate or withdraw from the second card slot.

In one embodiment, the lock seat is provided with a connection slot, the connection slot is located between the first card slot and the second card slot, and the connection slot is connected to the first card slot and the second card slot. The second card slot communicates with each other, the lock tongue includes a tongue main body part and a slider part, the slider part is protruded on the side of the tongue main body part facing the lock seat, and the slider part can move along the the connecting groove slides, the tongue main body part can pass through the first card groove or the second card groove, and the width of the tongue main body part is larger than the width of the connecting groove;

In one embodiment, a stroke control device is provided on the lock body to control the sliding stroke of the lock tongue along the chute, and the stroke control device has a first control state and a second control state, When the stroke control device is in the first control state, only the tongue body portion can slide away from the first card groove or the second card groove along the sliding groove; when the stroke control device is in the first control state In the second control state, both the tongue body part and the slider part can slide away from the first card groove or the second card groove along the sliding groove.

In one embodiment, the bottom wall of the chute is provided with a movable hole, the inner wall of the movable hole is provided with a first limit groove along the circumferential direction, and the stroke control device includes a control rod and an upper limit piece connected to the control rod. , the control rod slides through the movable hole, and can rotate relative to the lock body, the limiting piece can be limited in the first limiting groove, and the limiting piece can be along the The movable hole moves into the chute, wherein when the limiting member rotates with the control rod in the chute at a certain angle, the limiting member abuts against the bottom wall of the chute , limit the lever to the chute.

In one embodiment, the upper ring of the control rod is provided with a positioning groove, and the limiting member includes a retaining spring matched with the positioning groove.

In one embodiment, an operation portion is provided at one end of the control rod extending out of the lock body, so that the control rod and the limiting member are rotated at a certain angle.

In one embodiment, the lock tongue is provided with a second limit groove opposite to the movable hole, an elastic member is sleeved on one end of the control rod close to the lock tongue, and the control rod is opposite to the other end of the lock tongue. When the lock tongue moves, the control rod can extend into the second limiting groove and compress the elastic member.

In one embodiment, a guide slope is provided at one end of the lock tongue close to the lock base.

A sliding door and window, the sliding door and window includes the safety lock as described above.

The safety lock includes a lock seat, a lock body, a lock tongue and a dial. The lock seat is provided with a first card position and a second card position along the sliding direction of the sliding door and window, and the lock tongue is inserted into the sliding groove of the lock body and is elastically connected with the lock body, so that the lock tongue can be telescopically moved relative to the lock seat, and the lock tongue can be moved relative to the lock seat. The block toggles the slider along the chute. Furthermore, when the sliding door and window with the safety lock is in a closed state, the lock tongue extends to the first card position under the action of elastic force and cooperates with the first card position, so that the safety lock is in a locked state, and then the sliding door and window are locked. in a closed state. When the sliding door and window need to be opened, the toggle block can disengage the lock tongue from the first card position, open the sliding door and window, and drive the lock tongue to move toward the second card position. When the lock tongue moves to the second position, release the block, and the lock tongue cooperates with the second position to keep the safety lock in a locked state. At this time, the safety lock locks the sliding door and window in the ventilation state, so that the sliding door and window cannot be operated. open further. The use of sliding doors and windows with the above-mentioned safety locks can effectively avoid accidents such as falling and falling objects at the sliding doors and windows while ensuring ventilation, which is more convenient and safe.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, the drawings of other embodiments can also be obtained according to these drawings without creative efforts.

1 is an exploded view of a safety lock according to an embodiment of the application;

Fig. 2 is a sectional view of the lock body in the safety lock shown in Fig. 1;

Fig. 3 is a sectional view of the lock body in the safety lock shown in Fig. 1;

4 is a cross-sectional view of the control lever in the safety lock shown in FIG. 1 in a first control state;

Fig. 5 is the sectional view when the control lever in the safety lock shown in Fig. 1 is in the second control state;

FIG. 6 is a cross-sectional view of the lock tongue in the safety lock shown in FIG. 5 when it is in the first position and matched with the first slot;

Fig. 7 is an enlarged view of the place A shown in Fig. 6;

FIG. 8 is a cross-sectional view of the lock tongue in the safety lock shown in FIG. 5 when it is in the second position and matched with the first slot;

Fig. 9 is an enlarged view at B shown in Fig. 8;

Fig. 10 is a cross-sectional view of the lock tongue in the safety lock shown in Fig. 5 being in the first position and mating with the second slot;

Fig. 11 is an enlarged view at C shown in Fig. 10;

Figure 12 is a sectional view of the safety lock shown in Figure 5 when the deadbolt is in a third position;

FIG. 13 is an enlarged view of D shown in FIG. 12 .

Safety lock 10 Lock base 100 First slot 110 Second slot 120 Connecting slot 130 Positioning rib 140 Lock body 200 Slide slot 210 Bottom wall 211 Slide port 220 Active hole 230 First limit slot 240 Lock tongue 300 Tongue main body 310 Slot 311 Second limit slot 312 Slider part 320 Guide slope 330 Dial block 400 Buckle part 410 Control rod 500 Rod end part 510 Rod main part 520 Positioning groove 521 Operation part 530 Spring 610 Retaining spring 620 Front window 20 Rear window 30 Window frame 40

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present application discloses a sliding door and window, which includes a safety lock. As shown in FIG. 1 , FIG. 6 and FIG. 7 , the sliding door and window includes a front window 20 , a rear window 30 and a window frame 40 . Sliding relative to each other to open or close sliding doors and windows. For ease of description, in this embodiment, the rear window 30 is slidable, the front window 20 is fixed, the rear window 30 slides to the right to open the sliding doors and windows, and slides to the left to close the sliding doors and windows. Sliding doors and windows have three states: closed, ventilated and fully open. The ventilation state is a state between the closed state and the fully open state, that is, when the sliding doors and windows are in the ventilation state, the sliding doors and windows are not fully opened at this time. The ventilation state in this embodiment refers to the state when the sliding door and window are opened to a preset opening degree.

The safety lock 10 includes a lock base 100 , a lock body 200 , a lock tongue 300 and a dial 400 . The lock base 100 is provided with a first latching position and a second latching position along the sliding direction of the sliding door and window. The lock body 200 is located on one side of the lock base 100 , and the lock body 200 is provided with a chute 210 , and the slot of the chute 210 faces the lock base 100 . The lock tongue 300 is slidably inserted into the sliding slot 210 , and the lock tongue 300 is elastically connected with the lock body 200 , so that the lock tongue 300 can telescopically move relative to the lock base 100 . When the lock tongue 300 extends to the first position along the chute 210, the lock tongue 300 cooperates with the first position; Phase match. The dial 400 is connected to the lock tongue 300 , and can move relative to the lock body 200 in the direction of telescopic movement of the lock tongue 300 , so as to drive the lock tongue 300 to telescopically move relative to the lock base 100 along the chute 210 .

Specifically, the sliding direction of the sliding door and window is the left-right direction, the lock base 100 is installed on the front window 20 , and the lock body 200 is installed on the rear window 30 . The lock base 100 is arranged in a plate shape, and the second latching position is disposed on the right side of the first latching position. The lock body 200 is located at the rear side of the lock base 100 . The lock body 200 is provided with a chute 210 extending in the front-rear direction, and the slot of the chute 210 faces forward. The lock tongue 300 is inserted into the sliding slot 210 and is elastically connected with the lock body 200 , so that the lock tongue 300 can be extended and retracted in the front-rear direction, and can be telescopically moved relative to the lock base 100 . When the sliding door and window are in the closed state, the lock tongue 300 extends to the first detent position of the lock base 100 and cooperates with the first detent position, so that the lock base 100 and the lock body 200 are relatively fixed, and the safety lock 10 is in the locked state at this time , lock the sliding doors and windows in the closed state. When the sliding doors and windows need to be opened, the dial 400 is toggled backward to drive the lock tongue 300 to slide backward, so that the lock tongue 300 is disengaged from the first latching position, and the rear window 30 can slide to the right at this time. When the rear window 30 is pushed to the right, the lock body 200 and the lock tongue 300 also move to the right along with the rear window 30 . When the lock tongue 300 moves to the rear of the second detent position, the dial block 400 is released, and the lock tongue 300 moves towards the lock base 100 under the action of the elastic force. When the lock tongue 300 extends to the second detent position, the lock tongue 300 300 cooperates with the second card position, so that the safety lock 10 is in a locked state. At this time, the sliding door and window are in the ventilation state, and the sliding door and window are locked in the ventilation state through the cooperation between the locking tongue 300 and the second clamping position.

It can be understood that when the sliding doors and windows are locked in the ventilation state, the opening degree of the sliding doors and windows is proportional to the distance between the first card position and the second card position. The greater the distance between the sliding doors and windows, the greater the opening degree of the sliding doors and windows in the ventilation state; when the distance between the first card position and the second card position is smaller, the opening degree of the sliding doors and windows in the ventilation state is correspondingly smaller. When the sliding doors and windows need to be fully opened, the dial 400 is pushed backwards to release the lock tongue 300 from the second detent, and the rear window 30 can slide to the right until the sliding doors and windows are fully opened, so that the sliding doors and windows are fully opened. It can be understood that the lock base 100 can also be provided with a third card position. When the sliding door and window are fully opened, the lock tongue 300 can cooperate with the third card position to lock the sliding door and window in a fully opened state. A fourth card position, a fifth card position, etc. can also be set between the second card position and the third card position, so that the sliding door and window have multiple ventilation states.

Through the cooperation of the locking tongue 300 and the second locking position, the safety lock 10 can lock the sliding door and window in the ventilation state, keep the sliding door and window open to a predetermined degree for ventilation, and keep both the front window 20 and the rear window 30 open. Keep it relatively fixed and avoid further opening of sliding doors and windows. In this way, by using the above-mentioned sliding doors and windows, while ensuring ventilation, accidents such as falling and falling objects can be effectively avoided at the sliding doors and windows, and the use is more convenient and safe.

As shown in FIG. 3 and FIG. 4 , the lock body 200 is provided with a sliding port 220 that communicates with the sliding groove 210 , the dial 400 is penetrated through the sliding port 220 and is detachably connected to the lock tongue 300 , and the dial 400 can slide along the sliding block 400 . The mouth 220 slides. In this embodiment, the sliding port 220 is located on the right side wall of the lock body 200 , and the dial 400 can move up and down along the sliding port 220 . During installation, the locking tongue 300 is inserted into the sliding slot 210 first, and then the dial 400 is installed on the locking tongue 300 from the sliding opening 220 .

In one embodiment, the locking tongue 300 is connected with the dial 400 by snap connection. The lock tongue 300 is provided with a slot 311 opposite to the sliding port 220 , and the toggle block 400 is provided with a buckle portion 410 facing the lock tongue 300 . Connected to the deadbolt 300. The connection is firm and easy to install.

In other alternative embodiments, the dial block 400 and the locking tongue 300 may also be installed together by means of screwing, plugging, or the like.

The first card position includes a first card slot 110, and the second card position includes a second card slot 120. When the lock tongue 300 is opposite to the first card slot 110, the lock tongue 300 can move into or out of the first card slot 110; When the locking tongue 300 is opposite to the second locking slot 120 , the locking tongue 300 can movably penetrate or exit the second locking slot 120 . The lock tongue 300 is inserted into the first card slot 110 to realize the locking of the safety lock 10, and the sliding door and window are in a closed state at this time; the lock tongue 300 is inserted into the second card slot 120 to realize the locking of the safety lock 10, and the sliding door and window are in a ventilated state. .

In other alternative embodiments, the second locking position may also include a block, and the locking tongue 300 inserted between the two blocks can also limit the movement of the rear window 30 . Wherein, a positioning rib 140 is provided on the left edge of the first card slot 110, so that the lock seat 100 can be accurately installed on the front window 20, and the assembly accuracy of the sliding door and window can be improved.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the lock base 100 is provided with a connecting slot 130 . The connecting slot 130 is located between the first card slot 110 and the second card slot 120 , and the connecting slot 130 is connected to the first card slot 110 and the second card slot 120 . The second card slot 120 communicates with each other. In this embodiment, the lock tongue 300 includes a tongue body part 310 and a slider part 320. The slider part 320 is protruded from the side of the tongue body part 310 facing the lock seat 100. The slider part 320 can slide along the connecting groove 130, and the tongue body The portion 310 can pass through the first card slot 110 or the second card slot 120 , and the width of the tongue body portion 310 is greater than the width of the connecting slot 130 .

Through the above arrangement, the locking tongue 300 moves backward along the sliding groove 210 for a certain distance, so that the sliding block portion 320 is inserted into the first locking groove 110, and the tongue body portion 310 is withdrawn from the first locking groove 110, and the rear window 30 is pushed toward the When sliding to the right, the slider portion 320 moves along the connecting slot 130 into the second engaging slot 120 , and the slider portion 320 cooperates with the second engaging slot 120 to restrict the rear window 30 from continuing to move to the right. Through the guiding function of the above-mentioned connecting groove 130, the sliding door and window can be switched from the closed state to the ventilation state very accurately.

As shown in Figure 1, Figure 4 and Figure 5, the lock body 200 is provided with a stroke control device to control the sliding stroke of the lock tongue 300 along the chute 210, the stroke control device has a first control state and a second control state, When the stroke control device is in the first control state, only the tongue body portion 310 can slide away from the first slot 110 or the second slot 120 along the chute 210; when the stroke control device is in the second control state, the tongue body portion 310 Both the slider portion 320 and the slider portion 320 can slide away from the first card groove 110 or the second card groove 120 along the sliding groove 210 .

It can be understood that the main body portion 310 of the tongue cannot slide along the connecting groove 130, and the width of the connecting groove 130 is smaller than the width of the first locking groove 110 and the second locking groove 120, so that the locking tongue 300 and the first locking groove 110 or the first locking groove 120 can be realized. The two card slots 120 cooperate to realize the locking of the safety lock 10 . Specifically, the lock tongue 300 has a first position, a second position and a third position, and the lock tongue 300 can slide backward from the first position to the second position in sequence, and then slide backward to the third position. As shown in Figures 6, 7, 10 and 11, the lock tongue 300 is in the first position; as shown in Figures 8 and 9, the lock tongue 300 is in the second position; as shown in Figures 12 and 13, the lock Tongue 300 is in a third position.

The safety lock structure is described below by taking the closed state of the sliding door and window as an example.

When the lock tongue 300 is located at the first position, the tongue body portion 310 penetrates through the first card slot 110 , and when the slider portion 320 is located in front of the lock base 100 , the tongue body portion 310 penetrates through the first card slot 110 , The safety lock 10 is in a locked state. When the lock tongue 300 is located at the second position, the lock tongue 300 moves backwards a certain distance relative to the first position, the slider portion 320 passes through the first slot 110 , and the main body portion 310 of the tongue is located in the first slot 110 rear. The rear window 30 can drive the slider 320 to slide from the first slot 110 along the connecting slot 130 to the second slot 120 . At this time, the slider 320 passes through the second slot 120 and the tongue body 310 is located in the second slot 120 . Behind the card slot 120. Due to the limiting effect between the slider portion 320 and the first engaging slot 110 and the second engaging slot 120 , the rear window 30 can only drive the slider portion 320 to slide between the first engaging slot 110 and the second engaging slot 120 , that is, the sliding doors and windows can only be changed between the closed state and the ventilation state, and the sliding doors and windows can only be opened at most to the preset opening degree in the ventilation state. When the lock tongue 300 is in the third position, the lock tongue 300 is located behind the lock base 100, and the safety lock 10 is in a fully released state, and the sliding door and window can be changed from a closed state to a fully opened state.

When the stroke control device is in the first control state, the locking tongue 300 can only slide between the first position and the second position. When the locking tongue 300 slides backward from the first position to the second position, the tongue body portion 310 moves to the rear of the first locking slot 110 , and at this time the tongue body portion 310 slides away from the first locking slot 110 , and the slider portion 320 passes through the lock tongue 300 . Set in the first card slot 110 , so that in the front-rear direction, only the tongue body portion 310 slides away from the first card slot 110 along the sliding slot 210 . When the rear window 30 is pushed to move to the right, the sliding block 320 moves along the connecting groove 130 to the second locking groove 120 . At this time, the sliding block 320 penetrates the second locking groove 120 to restrict the sliding door and window from further moving to the right. Then the lock tongue 300 slides forward from the second position to the first position, and at this time, the lock tongue 300 is partially inserted into the second slot 120 to lock the sliding door and window in a ventilated state. When the sliding door and window are in the ventilation state, the sliding door and window can also be closed by sliding the lock tongue 300 and pushing the rear window 30 to the left. Therefore, when the travel control device is in the first control state, the lock tongue 300 can only slide between the first position and the second position, so that the sliding door and window can only be changed between the closed state and the ventilation state, so that the sliding door and window can only be changed between the closed state and the ventilation state. The maximum opening degree of the sliding door will not exceed the opening degree when it is in a ventilated state, so that the sliding door and window are in a safe state, which effectively avoids the potential safety hazard caused by the user's misoperation to open the sliding door and window by a large margin. For example, when the sliding doors and windows are in a safe state, children can be prevented from opening the sliding doors and windows widely.

When the travel control device is in the second control state, the locking tongue 300 can slide between the first position and the third position, so that the sliding door and window can be changed between the closed state, the ventilation state and the fully open state, so that the sliding door and window can be changed Achieve any degree of opening.

As shown in FIG. 1 to FIG. 5 , the bottom wall 211 of the chute 210 is provided with a movable hole 230 , and the movable hole 230 is provided with a first limiting groove 240 along the circumferential direction. The stroke control device includes a control rod 500 and a limiter connected to the control rod 500 . The control rod 500 slides through the movable hole 230 and can rotate relative to the lock body 200 . The limiting piece can be located in the first limiting groove 240 , and the limiting piece can be moved into the chute 240 along the movable hole 230 , wherein the limiting piece can rotate with the control rod 500 at a certain angle in the chute 240 to abut against on the bottom wall 211 of the chute 240 .

The bottom wall 211 of the chute 210 is provided with a movable hole 230 extending in the front-rear direction. The control rod 500 is penetrated in the movable hole 230 and can slide in the movable hole 230 in the front-rear direction. Meanwhile, the control rod 500 can slide in the movable hole 230 turns. The first limiting slot 240 is located between the two openings of the movable hole 230, and a part of the movable hole 230 between the first limiting slot 240 and the sliding slot 210 is roughly elliptical, and the limiting member can be rotated to a specific position. The angle is matched with the part of the movable hole 230 , so that the limiter can pass through the part of the movable hole 230 , that is, the limiter can move between the chute 210 and the first limit slot 240 . For the convenience of description, an alignment state and a staggered state are defined here. When the limiter is in the aligned state with the part of the movable hole 230, the limiter can pass through the part of the movable hole 230; When the part of the movable hole 230 is in a staggered state, the limiting member cannot pass through the part of the movable hole 230 . When the limiter is located in the chute 210, the limiter is in a staggered state relative to the movable hole 230, the limiter presses against the bottom wall 211 of the chute 210, and restricts the control rod 500 from moving further backward.

The lock tongue 300 slides backward to the second position, and the front end of the control rod 500 abuts against the lock tongue 300 . In this way, after the lock tongue 300 slides backward to the second position, the control rod 500 restricts the lock tongue 300 to slide further backward, and then The lock tongue 300 can only slide between the first position and the second position, and at this time, the stroke control device is in the first control state. Rotate the control rod 500 so that the limiter is aligned relative to the part of the movable hole 230 , and then move the control rod 500 backwards so that the limiter enters the first limit slot 240 along the movable hole 230 , so as to be limited in the first limit slot 240 . In a limiting groove 240, the control rod 500 cannot move backward. In this way, the locking tongue 300 can slide backward to the third position, and the stroke control device is in the second control state.

As shown in FIG. 1 , the upper ring of the control rod 500 is provided with a positioning groove 521 , and the limiting member includes a retaining spring 620 matched with the positioning groove 521 . The circlip 620 is provided in a sheet shape and is provided with a U-shaped mouth, and the circlip 620 is clamped to the control rod 500 through the U-shaped mouth. The limiting member may also be a rubber block, a rubber ring, or the like. The retaining spring 620 is in an interference fit with a part of the movable hole 230 between the first limiting groove 240 and the sliding groove 210 .

As shown in FIG. 1 to FIG. 5 , an operation portion 530 is provided at one end of the control rod 500 extending out of the lock body 200 , so that the control rod 500 and the limiting member can be rotated at a certain angle. The lever 500 has a lever end 510, a lever main body 520 and an operating portion 530, the lever main portion 520 is located between the lever end 510 and the operating portion 530, the lever end 510 is located at the front end of the lever 500, and the operating portion 530 Located at the rear end of the lever 500 . The operation part 530 is arranged in a shape that is convenient for fingers to pinch, so as to facilitate the user to push and pull the control rod 500 . By pushing the operation part 530, the control rod 500 can be moved forward or backward, and by rotating the operation part 530, the control rod 500 can be rotated by a certain angle. When the control rod 500 is at the first preset position, the lock tongue 300 slides backward to the second position, and the front end of the control rod 500 abuts against the lock tongue 300, so that the lock tongue 300 cannot continue to slide backward, and the stroke control device is in first control state. Rotate the operation part 530 to a certain angle, so that the limiter aligns with the movable hole 230, the control rod is acted by the elastic force of the elastic member, and the control rod 500 moves backward to the second preset position. At this time, the lock tongue 300 can slide backward to the first position In the third position, the stroke control device is in the second control state. When the lock tongue 300 is located at the third position, the lock tongue 300 may or may not be in contact with the control rod 500, as long as the lock tongue 300 can slide to the third position. Wherein, marks may be set on the control rod 500 to mark the first preset position and the second preset position on the control rod 500 .

As shown in FIG. 1 to FIG. 5 , the lock tongue 300 is provided with a second limiting groove 312 opposite to the movable hole 230 , an elastic member is sleeved on one end of the control rod 500 close to the lock tongue 300 , and the control rod 500 is opposite to the lock tongue When the 300 moves, the control rod 500 can extend into the second limiting groove 312 and compress the elastic member. In this embodiment, the elastic member is a spring 610, and in other alternative embodiments, it can also be a rubber sleeve or the like. The diameter of the rod end portion 510 is smaller than the diameter of the rod main body portion 520 . The positioning groove 521 is set on the rod main body 520 , and the spring 610 is sleeved on the rod end 510 . The front end of the spring 610 is in contact with the bottom wall of the second limiting groove 312 , and the rear end of the spring 610 is in contact with the connection between the rod end portion 510 and the rod main body portion 520 . Wherein, when the lock tongue 300 is in the first position, the second position or the third position, the spring 610 is in a compressed state, which realizes the elastic connection between the lock tongue 300 and the lock body 200, and also prevents the lock tongue 300 from being in the chute 210. shaking.

In other alternative embodiments, the spring 610 may also be disposed between the lock tongue 300 and the bottom wall 211 of the sliding groove 210 , which can also achieve elastic connection between the lock tongue 300 and the lock body 200 .

As shown in FIG. 1 and FIG. 6 and FIG. 7 , one end of the lock tongue 300 close to the lock base 100 is provided with a guide slope 330 . The guide slope 330 is located on the left side of the front end of the lock tongue 300 . When the rear window 30 moves to the left, that is, when the rear window 30 is closed, the guide slope 330 can abut against the lock base 100 . By pushing the rear window 30 to the left in this way, the lock seat 100 can be pressed backward against the lock tongue 300 along the guiding slope 330 , so that the rear window 30 can be smoothly moved to the left without turning the dial 400 backward, which is more convenient to use.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (12)

1. A safety lock for sliding doors and windows, wherein the safety lock comprises: A lock seat, the lock seat is provided with a first card position and a second card position along the sliding direction of the sliding door and window, and the lock seat is provided with a connecting groove, and the connecting groove is located at the first card position and the second card position. between the second card positions, and the connecting groove communicates with the first card position and the second card position; a lock body, the lock body is located on one side of the lock seat, a chute is provided in the lock body, and the notch of the chute faces the lock seat; The lock tongue is slidably inserted into the chute, and the lock tongue is elastically connected with the lock body, so that the lock tongue can move relative to the lock seat. When the lock tongue extends to the first position along the chute, the lock tongue is matched with the first position; when the lock tongue extends to the second position along the chute , the lock tongue is matched with the second card position; the lock tongue can be slid from the first card position to the second card position through the connecting groove; and A dial block, which is connected to the lock tongue and can move relative to the lock body in the direction of telescopic movement of the lock tongue, so as to drive the lock tongue to extend and retract relative to the lock base along the chute sports. 2 . The safety lock of claim 1 , wherein the lock body is provided with a sliding port that communicates with the sliding groove, and the dial is penetrated through the sliding port and is connected with the locking tongue 2 . Removable connection, and the dial can slide along the sliding port. 3 . The safety lock of claim 2 , wherein a slot opposite to the sliding port is provided on the latch, and a snap portion facing the latch is provided on the dial, 3 . The snap portion is matched with the slot. 4 . The safety lock of claim 1 , wherein the first card position includes a first card slot, the second card position includes a second card slot, and when the lock tongue is in contact with the first card slot. 5 . When the card slots are opposite to each other, the locking tongue can movably penetrate or exit the first card slot; when the locking tongue is opposite to the second card slot, the locking tongue can movably penetrate or withdraw from the first card slot. the second card slot. 5 . The safety lock of claim 4 , wherein the lock tongue comprises a tongue main body part and a slider part, and the slider part is protruded from the side of the tongue main body part facing the lock seat, 5 . The slider portion can slide along the connecting groove, the tongue body portion can pass through the first or second locking groove, and the width of the tongue body portion is greater than the width of the connecting groove. 6 . The safety lock according to claim 5 , wherein a stroke control device is arranged on the lock body to control the sliding stroke of the lock tongue along the sliding groove, and the stroke control device has A first control state and a second control state, when the travel control device is in the first control state, only the tongue body portion can slide away from the first slot or the second slot along the chute a card slot; when the stroke control device is in the second control state, both the tongue body part and the slider part can slide away from the first card slot or the second card along the chute groove. 7 . The safety lock according to claim 6 , wherein a movable hole is provided on the bottom wall of the chute, the inner wall of the movable hole is provided with a first limit groove along the circumferential direction, and the stroke control device comprises: 8 . a control rod and an upper limit piece connected to the control rod, the control rod slides through the movable hole and can rotate relative to the lock body, and the limit piece can be limited to the first limit groove , and the limiter can move into the chute along the movable hole, wherein when the limiter rotates with the control rod in the chute by a certain angle, the limiter Abutting on the bottom wall of the chute, the control rod is limited to the chute. 8 . The safety lock according to claim 7 , wherein a positioning groove is provided on the upper ring of the control rod, and the limiting member comprises a retaining spring matched with the positioning groove. 9 . 9 . The safety lock according to claim 7 , wherein an operation part is provided at one end of the control rod extending out of the lock body, so that the control rod and the limiting member rotate at a certain angle. 10 . 10. The safety lock according to any one of claims 7-9, wherein the lock tongue is provided with a second limit groove opposite to the movable hole, and the control rod is close to the lock tongue An elastic piece is sleeved on one end of the control rod, and when the control rod moves relative to the lock tongue, the control rod can extend into the second limiting groove and compress the elastic piece. 11 . The safety lock of claim 1 , wherein a guide slope is provided at one end of the lock tongue close to the lock base. 12 . 12. A sliding door and window, characterized in that the sliding door and window comprises the safety lock according to any one of claims 1-11.

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