A drawer slide rail self-locking device

Abstract

The utility model discloses a drawer slide rail self -locking device, including drawer slide rail, vertical slide, set in the linkage mechanism of vertical slide, drawer slide rail is at least two groups, interval setting on vertical slide, linkage mechanism includes at least two groups of trigger lock, drawer slide rail includes slide rail and sets in the trigger piece of slide rail one end, trigger piece and trigger lock adaptation, trigger lock rotates, and trigger piece and slide rail can be in translation, and trigger lock locks, and trigger piece and slide rail cannot be in translation. The utility model discloses the rotation of the trigger lock of setting off, realizes the locking of other trigger lock, and locking structure is simple and reliable in operation, thereby controls other drawer self -locking in the drawer cabinet, and cannot open.

Description

Technical Field

[0001] This utility model relates to the field of furniture installation technology, specifically a drawer slide self-locking device. Background Technology

[0002] In the furniture industry, sliding rails refer to a type of sliding guide used in furniture drawers, cabinet doors, and other components. Also known as two-section rails, they typically consist of two parts: an outer rail (fixed rail) fixed to the furniture body and an inner rail (movable rail) installed on the drawer. The inner rail slides within the outer rail, thus opening and closing the drawer or cabinet door. Sliding rails are widely used in furniture production due to their simple structure, easy installation, long service life, and smooth sliding. Drawers utilize sliding rails... When properly installed on cabinet panels, the cabinet is prone to tipping over when multiple drawers are pulled out simultaneously due to a shift in the center of gravity. This could lead to injuries or fatalities and poses a significant safety risk. Therefore, there is an urgent need to develop a device that can effectively prevent multiple drawers from opening simultaneously.

[0003] However, such technologies are rare in the existing technology. Our prior patent, patent number 202321708286.X, entitled "A Self-Locking Device for Anti-Drawer Tipping Slides," discloses a self-locking component rotatably connected to a connecting assembly. The connecting assembly also has a driving block that abuts against the self-locking component. As one drawer is pulled out, the self-locking component rotates, causing the driving block to displace in the direction of the connecting assembly until the lower end of the stop protrusion is stopped, thus locking the corresponding self-locking components of the remaining drawers. This slide rail self-locking device also includes a safety block on the drawer cabinet, with a limiting groove formed on the safety block. The connecting assembly slides against the safety block via the stop protrusion. The safety block also has an unlocking groove that simultaneously allows displacement in both the drawer pulling direction and the connecting assembly direction, and the unlocking groove is connected and communicates with the limiting groove. With this structure, the safety block needs to be moved first when installing the drawers, and then the drawers can be installed sequentially. This installation process is not very convenient, so there is a need to develop a drawer slide rail self-locking device that is easy to install. Summary of the Invention

[0004] The purpose of this invention is to provide a self-locking device for drawer slides to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a drawer slide rail self-locking device, including a drawer slide rail, a vertical slide groove, and a linkage mechanism disposed in the vertical slide groove; the drawer slide rail is at least two sets, which are spaced apart on the vertical slide groove; the linkage mechanism includes at least two sets of trigger locks; the drawer slide rail includes a slide rail and a trigger piece disposed at one end of the slide rail; the trigger piece is adapted to the trigger lock; when the trigger lock rotates, the trigger piece and the slide rail can move horizontally; when the trigger lock is locked, the trigger piece and the slide rail cannot move horizontally.

[0006] Preferably, the linkage mechanism includes a limiting block, a fixed stop block, and at least two sets of trigger lock assemblies. The limiting block and the fixed stop block are respectively located at the upper and lower ends of the vertical slide groove. The trigger lock assemblies are located between the limiting block and the fixed stop block. A support rod is provided between each set of trigger lock assemblies.

[0007] As a further preferred embodiment, the trigger lock assembly includes a movable block, a bearing, and a trigger lock. Within the trigger lock assembly, the movable block is positioned above the bearing, the bearing abuts against the lower part of the movable block, and the trigger lock is rotatably positioned on the front side of the bearing. Between two adjacent sets of trigger lock assemblies, the upper end of a support rod is connected to the bearing in the upper trigger lock assembly, and the lower end of the support rod is connected to the movable block in the lower trigger lock assembly.

[0008] As a further preferred embodiment, the front end of the movable block is provided with a protrusion, and the trigger lock abuts against the lower part of the protrusion and is adapted to the protrusion.

[0009] Preferably, the upper edge of the trigger lock includes a rotating section and an abutting section. The distance from the rotating section to the rotation center of the trigger lock is less than the distance from the abutting section to the rotation center of the trigger lock. A stop section is also provided on the left side of the rotating section.

[0010] As a further preferred embodiment, the upper outer end of the vertical slide is provided with a latch, the latch is provided with a channel, the upper end of the channel is provided with a pressure block, the channel is provided with a push block, and the push block abuts against the upper front side of the limiting block; a first spring is provided between the pressure block and the push block, and a second spring is provided between the movable block of the uppermost trigger lock assembly and the limiting block.

[0011] As a further preferred embodiment, the front of the latch is provided with a limiting window, and the limiting block is provided with a forward-protruding stop protrusion, the stop protrusion being located within the limiting window, and the push block abutting against the top of the stop protrusion.

[0012] Preferably, the drawer slide rail is arranged horizontally, including a fixed track and a slide rail. The slide rail can slide horizontally along the fixed track. The fixed track is fixedly connected to a vertical slide groove. One end of the slide rail is provided with an upwardly pointing trigger piece. The trigger piece is provided with a trigger rivet on the side facing the vertical slide groove. The trigger lock is provided with an opening groove. The side of the opening groove facing the slide rail is provided with a guide ramp. As the trigger piece moves horizontally, the trigger rivet enters the opening groove or disengages from the opening groove, thereby driving the trigger lock to rotate.

[0013] As a further preferred embodiment, a roller is provided between the fixed track and the slide rail; the bottom of the fixed track is provided with a folded lower edge, and the roller is located at the entrance end of the fixed track; the end of the slide rail with a trigger plate is also provided with a roller, and the end without a trigger plate is provided with a folded upper edge of the slide rail; the roller of the slide rail rolls against the lower edge of the fixed track, and the roller of the fixed track provides rolling support to the upper edge of the slide rail.

[0014] As a further preferred embodiment, the side of the slide rail is provided with an outwardly folding drawer mounting piece.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this utility model achieves the locking of other trigger locks by triggering the rotation of the trigger lock. The locking structure is simple and reliable, thereby controlling the self-locking of other drawers in the drawer cabinet, making them unable to be opened.

[0016] This utility model is easy to install. After the overall structure is installed, it can be directly pushed into the drawer without repeated adjustments, which improves the convenience of product use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the vertical slide and linkage mechanism of this utility model; Figure 3 This is a schematic diagram of the linkage mechanism inside the vertical slide groove of this utility model.

[0018] Figure 4 This is a schematic diagram of the linkage mechanism of the trigger lock in the unlocked state of this utility model.

[0019] Figure 5 This is a schematic diagram of the linkage mechanism for the trigger lock locking state of this utility model.

[0020] Figure 6 This is a diagram showing the drawer slide of this utility model in its separated state as viewed from the front.

[0021] Figure 7 This is a diagram showing the drawer slide of this utility model in its separated state, viewed from the rear.

[0022] Label Explanation: 1: Drawer slide; 11: Fixed slide; 111: Lower edge of fixed slide; 12: Slide; 121: Upper edge of slide; 13: Roller; 14: Actuator; 15: Drawer mounting plate; 16: Actuator rivet; 2: Vertical slide groove; 21: Limiting block; 211: Stopping protrusion; 22: Second spring; 23: Movable block; 231: Protrusion; 24: Trigger lock; 241: Opening slot; 242: Rotating section; 243: Abutting section; 244: Guide ramp; 245: Stopping section; 25: Support rod; 26: Fixed stop block; 27: Shaft seat; 3: Lock; 31: Limiting window; 32: Push block; 33: Pressing block; 34: First spring. Detailed Implementation

[0023] A drawer slide rail self-locking device includes a drawer slide rail 1, a vertical slide groove 2, and a linkage mechanism disposed within the vertical slide groove 2; the drawer slide rail 1 comprises at least two sets, spaced apart on the vertical slide groove 2; the linkage mechanism includes at least two sets of trigger locks 24; the drawer slide rail 1 includes a slide rail 12 and a trigger piece 14 disposed at one end of the slide rail 12; the trigger piece 14 is adapted to the trigger lock 24; when the trigger lock 24 rotates, the trigger piece 14 and the slide rail 12 can move horizontally; when the trigger lock 24 is locked, the trigger piece 14 and the slide rail 12 cannot move horizontally.

[0024] In this embodiment, the linkage mechanism includes a limiting block 21, a fixed stop block 26, and at least two sets of trigger lock components. The limiting block 21 and the fixed stop block 26 are respectively located at the upper and lower ends of the vertical slide groove 2. The trigger lock components are located between the limiting block 21 and the fixed stop block 26. A support rod 25 is provided between each set of trigger lock components.

[0025] In this embodiment, the trigger lock assembly includes a movable block 23, a bearing seat 27, and a trigger lock 24. Within the trigger lock assembly, the movable block 23 is disposed above the bearing seat 27, and the bearing seat 27 abuts against the lower part of the movable block 23. The trigger lock 24 is rotatably disposed on the front side of the bearing seat 27. Between two adjacent sets of trigger lock assemblies, the upper end of the support rod 25 is connected to the bearing seat 27 in the upper trigger lock assembly, and the lower end of the support rod 25 is connected to the movable block 23 in the lower trigger lock assembly.

[0026] In this embodiment, the front end of the movable block 23 is provided with a protrusion 231, and the trigger lock 24 abuts against the lower part of the protrusion 231 and is adapted to the protrusion.

[0027] In this embodiment, the upper edge of the trigger lock 24 includes a rotating section 242 and an abutting section 243. The distance from the rotating section 242 to the rotation center of the trigger lock 24 is less than the distance from the abutting section 243 to the rotation center of the trigger lock 24. A stop section 245 is also provided on the left side of the rotating section 242. The function of the stop section 245 is to prevent the trigger lock 24 from rotating too far and to ensure that after the slide rail 12 slides in, the trigger lock 24 stops at the stop section 245 against the side of the protrusion 231.

[0028] In this embodiment, a latch 3 is provided on the upper outer side of the vertical slide 2, and a channel is provided in the latch 3. A pressure block 33 is provided at the upper end of the channel, and a push block 32 is provided in the channel. The push block 32 abuts against the upper front side of the limiting block 21. A first spring 34 is provided between the pressure block 33 and the push block 32, and a second spring 22 is provided between the movable block 23 of the uppermost trigger lock assembly and the limiting block 21.

[0029] On the trigger lock 24, the difference between the distance from the rotating section 242 to the rotation center of the trigger lock 24 and the distance from the abutting section 243 to the rotation center of the trigger lock 24 is equal to the distance between the movable block 23 and the limiting block 21 of the uppermost trigger lock assembly within the vertical slide groove 2. By rotating the trigger lock 24, from the rotating section 242 to the abutting section 243, the movable block 23 is pushed upward, the gap between the movable block 23 and the limiting block 21 is squeezed out, and the movable block 23 and the limiting block 21 abut together.

[0030] In this embodiment, the front of the latch 3 is provided with a limiting window 31, and the limiting block 21 is provided with a forward-protruding stop protrusion 211. The stop protrusion 211 is located within the limiting window 31, and the push block 32 abuts against the top of the stop protrusion 211. The limiting window 31 restricts the downward movement of the stop protrusion 211, thereby controlling the lower limit position of the limiting block 21. The stop protrusion 211 also serves to push the push block 32 upward.

[0031] In this embodiment, the drawer slide rail 1 is arranged horizontally, including a fixed track 11 and a slide rail 12. The slide rail 12 can slide horizontally along the fixed track 11. The fixed track 11 is fixedly connected to the vertical slide groove 2. One end of the slide rail 12 is provided with an upwardly raised trigger piece 14. The trigger piece 14 is provided with a trigger rivet 16 on the side facing the vertical slide groove 12. The trigger lock 24 is provided with an opening groove 241. The side of the opening groove 241 facing the slide rail 12 is provided with a guide ramp 244. As the trigger piece 14 moves horizontally, the trigger rivet 16 enters the opening groove 241 or disengages from the opening groove 241, thereby driving the trigger lock 24 to rotate.

[0032] In this embodiment, a roller 13 is provided between the fixed track 11 and the slide rail 12; the bottom of the fixed track 11 has a folded lower edge 111, and the roller 13 is located at the entrance end of the fixed track 11; the end of the slide rail 12 where the trigger piece 14 is provided also has a roller 13, and the end where the trigger piece 14 is not provided has a folded upper edge 121; the roller 13 of the slide rail 12 rolls against the lower edge 111 of the fixed track, and the roller 13 of the fixed track 11 provides rolling support for the upper edge 121 of the slide rail. This structure allows the drawer slide rail 1 to run more smoothly and stably.

[0033] In this embodiment, the side of the slide rail 12 is provided with an outwardly folding drawer mounting piece 15 for mounting drawers.

[0034] Working principle: During use, the product of this application is first installed onto the inner wall of the drawer cabinet, except for the slide rail 12. Then, the drawer mounting piece 15 of the drawer and slide rail 12 is fixedly installed, and the slide rail 12 connected to the drawer is inserted into the fixed track 11. When the drawer is pushed in, the trigger piece 14 approaches the trigger lock 24, and the trigger rivet 16 touches the guide ramp 244 on the trigger lock 24. Under the action of the guide ramp 244 and the trigger rivet 16, the linkage mechanism moves within the vertical slide groove 2. At this time, the first spring 34 located between the pressure block 33 and the push block 32 is compressed, and the trigger lock 24 can be pushed upward by the trigger rivet 16 until the trigger rivet 16 engages in the opening slot 241 within the trigger lock 24, completing the first push-in action of the drawer. At this time, the rotating section 242 of the trigger lock 24 abuts against the lower part of the protrusion 231 of the movable block 23, and the stop section 245 abuts against the side of the protrusion 231. No repeated adjustments are needed during this process; simply push the drawer in. It's very easy to install.

[0035] In this application, if the drawer cabinet only has two drawers, two sets of trigger lock components are installed; if multiple drawers are required, multiple sets of drawer slides 1 and trigger lock components are installed in parallel.

[0036] When any drawer is opened, the corresponding slide rail 12 slides outward, triggering the rivet 16 to disengage from the opening slot 241 of the trigger lock 24. Simultaneously, the trigger lock 24 rotates, changing the contact point between the trigger lock 24 and the protrusion 231 from the rotating section 242 to the contact section 243. During this process, the movable block 23 is pushed upward, compressing and eliminating the gap between the movable block 23 and the limiting block 21. The movable block 23 and the limiting block 21 abut together, leaving no space for the movable blocks 23 in other trigger lock assemblies to move up and down. Therefore, other trigger locks 24 cannot rotate, and the trigger rivet 16 in the opening slot 241 of the trigger lock 24 cannot disengage from the opening slot 241. This achieves the sliding of the slide rail 12, enabling the other drawers to lock automatically when one drawer is opened.

[0037] When the open drawer is pushed back, the trigger rivet 16 enters the opening slot 241 and drives the trigger lock 24 to rotate. The contact part between the trigger lock 24 and the protrusion 231 changes from the contact section 243 to the rotating section 242. Under the action of the second spring, the space between the limit block 21 and the movable block 23 is opened, and the movable block 23 in other trigger lock assemblies can move upward, so that the trigger lock 24 can rotate, thereby opening other drawers.

[0038] After the initial installation of this utility model, only one drawer can be opened each time it is used, while the other drawers remain locked. If the self-locking function is not required, during installation, the position of the latch 3 should be moved upward so that the trigger lock 24 and the trigger piece 14 below do not contact each other.

[0039] In the description of this utility model, it should be understood that the terms "one end", "above", "below", "upper front side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-locking device for a drawer slide rail, characterized in that The system includes a drawer slide (1), a vertical slide groove (2), and a linkage mechanism located within the vertical slide groove (2). The drawer slide (1) consists of at least two sets, spaced apart on the vertical slide groove (2). The linkage mechanism includes at least two sets of trigger locks (24). The drawer slide (1) includes a slide rail (12) and a trigger piece (14) located at one end of the slide rail (12). The trigger piece (14) is adapted to the trigger lock (24). When the trigger lock (24) rotates, the trigger piece (14) and the slide rail (12) can move horizontally. When the trigger lock (24) is locked, the trigger piece (14) and the slide rail (12) cannot move horizontally.

2. The self-locking device for drawer slide rail according to claim 1, characterized in that The linkage mechanism includes a limiting block (21), a fixed stop block (26), and at least two sets of trigger lock components. The limiting block (21) and the fixed stop block (26) are respectively located at the upper and lower ends of the vertical slide groove (2). The trigger lock components are located between the limiting block (21) and the fixed stop block (26). A support rod (25) is provided between each set of trigger lock components.

3. The self-locking device for drawer slide rail according to claim 2, characterized in that The trigger lock assembly includes a movable block (23), a bearing seat (27), and a trigger lock (24). Inside the trigger lock assembly, the movable block (23) is located above the bearing seat (27), and the bearing seat (27) abuts against the lower part of the movable block (23). The trigger lock (24) is rotatably located on the front side of the bearing seat (27). Between two adjacent sets of trigger lock assemblies, the upper end of the support rod (25) is connected to the bearing seat (27) in the upper trigger lock assembly, and the lower end of the support rod (25) is connected to the movable block (23) in the lower trigger lock assembly.

4. The self-locking device for drawer slide rail according to claim 3, characterized in that The front end of the movable block (23) is provided with a protrusion (231), and the trigger lock (24) abuts against the bottom of the protrusion (231) and is adapted to the protrusion (231).

5. The self-locking device for drawer slide rail according to any one of claims 1-4, characterized in that The upper edge of the trigger lock (24) includes a rotating section (242) and an abutting section (243). The distance from the rotating section (242) to the rotation center of the trigger lock (24) is less than the distance from the abutting section (243) to the rotation center of the trigger lock (24). A stop section (245) is also provided on the left side of the rotating section (242).

6. The self-locking device for drawer slide rail according to claim 3, wherein The upper end of the vertical slide (2) is provided with a latch (3), the latch (3) is provided with a channel, the upper end of the channel is provided with a pressure block (33), the channel is provided with a push block (32), and the push block (32) abuts against the upper front side of the limiting block (21); a first spring (34) is provided between the pressure block (33) and the push block (32), and a second spring (22) is provided between the uppermost trigger lock assembly movable block (23) and the limiting block (21).

7. The self-locking device for drawer slide rail according to claim 6, characterized in that The front of the latch (3) is provided with a limiting window (31), and the limiting block (21) is provided with a forward-protruding stop protrusion (211). The stop protrusion (211) is located inside the limiting window (31), and the push block (32) abuts against the top of the stop protrusion (211).

8. The self-locking device for drawer slide rail according to claim 1, characterized in that The drawer slide rail (1) is arranged horizontally, including a fixed track (11) and a slide rail (12). The slide rail (12) can slide horizontally along the fixed track (11). The fixed track (11) is fixedly connected to the vertical slide groove (2). One end of the slide rail (12) is provided with an upwardly raised trigger piece (14). The trigger piece (14) is provided with a trigger rivet (16) on the side facing the vertical slide groove (2). The trigger lock (24) is provided with an opening groove (241). The side of the opening groove (241) facing the slide rail (12) is provided with a guide ramp (244). The trigger rivet (16) enters the opening groove (241) or disengages from the opening groove (241) as the trigger piece (14) moves horizontally, thereby driving the trigger lock (24) to rotate.

9. The self-locking device for drawer slide rail according to claim 8, characterized in that A roller (13) is provided between the fixed track (11) and the slide rail (12); the bottom of the fixed track (11) is provided with a folded lower edge (111) of the fixed track, and the roller (13) is provided at the entrance end of the fixed track (11); the slide rail (12) is provided with a roller (13) at one end where a trigger piece (14) is provided, and the end where no trigger piece (14) is provided with a folded upper edge (121) of the slide rail; the roller (13) on the slide rail (12) rolls against the lower edge (111) of the fixed track, and the roller (13) of the fixed track (11) provides rolling support for the upper edge (121) of the slide rail.

10. The self-locking device for drawer slide rail according to claim 8, characterized in that The slide rail (12) has an outwardly folding drawer mounting piece (15) on its side.

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