A locking, dismounting drawer slide rail assembly

Abstract

A drawer slide assembly for locking and unlocking includes a fixed slide and a movable slide. The movable slide has a locking mechanism located away from its front end, while the fixed slide has a locking element located near its front end. The locking mechanism includes a resiliently telescopic latch. Under external force, the movable slide slides on the fixed slide, engaging the latch with the locking element. This ensures that when the movable slide reaches a certain position, it is positioned on the fixed slide by the locking mechanism and the locking element. The locking mechanism also includes an unlocking element that engages with the latch. Under external force, the unlocking element causes the latch to slide and disengage from the locking element. This invention, by providing a locking mechanism on the movable slide and a locking element on the fixed slide, locks the drawer to the cabinet when it is opened to the correct position, preventing it from detaching. To remove the drawer, simply pull the unlocking element to extend the entire drawer out of the cabinet, making disassembly and assembly convenient.

Description

Technical Field

[0001] This invention relates to the field of furniture technology, and in particular to a drawer slide assembly for locking and unlocking. Background Technology

[0002] To prevent the entire drawer from detaching from the cabinet when pulled out, a locking mechanism is typically installed between the moving and fixed slide rails. These locking mechanisms are usually quite complex, and some even require fasteners for securing. Therefore, disassembling the drawer generally requires tools (such as screwdrivers) to remove the locking mechanism before removing the drawer from the cabinet. Similarly, installing the drawer also requires tools, making drawer disassembly and assembly inconvenient, time-consuming, and labor-intensive. Chinese Patent Document CN102488400A, published on June 13, 2012, discloses a quick-install structure for drawer slide rails, including a slide rail assembly mounted on the drawer body. The slide rail assembly consists of... It is assembled with one movable slide rail and one fixed slide rail. The fixed slide rail is fixed to the inner wall of the cabinet. The movable slide rail is equipped with a support rail. The side panel of the drawer body is connected to one end of the support rail through a connector. The other end of the support rail is equipped with a fixing part corresponding to the bottom plate. The support rail is equipped with a locking mechanism. The movable slide rail is equipped with a buckle corresponding to the locking mechanism. The support rail is detachably connected to the movable slide rail through the locking mechanism. Although this locking mechanism does not require tools to disassemble, it is not securely fixed by the locking engagement of the fixing teeth and the buckle. When the drawer is pulled out, the fixing teeth and the buckle can easily loosen, causing the movable slide rail to easily detach from the support rail (fixed slide rail), and thus causing the drawer to fall out of the cabinet.

[0003] Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a drawer slide assembly that is simple and reasonable in structure, securely fixed, easy to assemble and disassemble, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A drawer slide assembly for locking and disassembling is designed for this purpose, comprising a fixed slide and a movable slide. Its features include: a locking mechanism located away from the front end of the movable slide; a locking element located near the front end of the fixed slide; a locking mechanism with an elastically telescopic locking element; the movable slide sliding on the fixed slide under external force, causing the locking element to engage with the locking element, so that when the movable slide slides to the corresponding position, it is positioned on the fixed slide by the locking mechanism and the locking element; and an unlocking element connected to the locking element, which, under external force, causes the locking element to slide and disengage from the locking element.

[0006] The sliding direction of the locking fastener is different from that of the sliding rail, and the two are arranged in a longitudinal and transverse manner.

[0007] The locking component is provided with a guide part, a support part and a locking part. When the movable slide rail slides on the fixed slide rail, it drives the locking component to slide into the locking part along the guide part and the support part, so that the locking component is engaged on the locking part.

[0008] A linkage guide is provided between the locking element and the unlocking element, and the locking element and the unlocking element are connected through the linkage guide. A sliding engagement part is provided between the unlocking element and the locking mechanism. The unlocking element is coupled to the locking element through the linkage guide and slides on the locking mechanism through the sliding engagement part. The sliding direction of the locking element is different from that of the unlocking element.

[0009] The locking mechanism includes a locking seat, a first elastic element is provided between the locking seat and the locking buckle, and a sliding guide is provided on the locking seat. The locking buckle elastically extends and slides on the locking seat through the first elastic element and the sliding guide.

[0010] A second elastic element is provided between the locking seat and the unlocking element for resetting the unlocking element to the desired position.

[0011] Two fixed slide rails and two movable slide rails are provided. Each movable slide rail is equipped with a locking mechanism, and each fixed slide rail is equipped with a locking element. The unlocking elements on the two locking mechanisms are connected by a synchronous rod. When one unlocking element moves under the action of external force, it drives the other unlocking element to move synchronously through the synchronous rod.

[0012] The locking seat is provided with a limiting part, and the synchronizing rod is limited on the limiting part; a connecting transmission component is provided between the unlocking component and the synchronizing rod, and the unlocking component and the synchronizing rod are connected by the connecting transmission component.

[0013] The locking seat is provided with a first positioning surface and a second positioning surface with different positioning directions. The locking mechanism is positioned on the moving slide rail by the first positioning surface and rests on one side of the moving slide rail by the second positioning surface.

[0014] A drawer is installed on the movable slide rail, and a positioning part is installed on the locking mechanism. One part of the drawer is positioned vertically on the positioning part, and the other part of the drawer is positioned vertically on the movable slide rail. A connecting part is provided between the movable slide rail and the locking mechanism, and the movable slide rail and the locking mechanism are connected through the connecting part. The fixed slide rail is located inside the cabinet. The drawer is locked to the cabinet by locking the locking mechanism and the locking element; or, the drawer can be detached from the cabinet by unlocking the locking mechanism and the locking element.

[0015] The present invention has the following beneficial effects:

[0016] 1. By setting a locking mechanism on the moving slide rail and a locking element on the fixed slide rail, when the drawer is opened (pulled out) to the corresponding position, the latch engages with the locking element, thus locking the drawer to the cabinet and preventing the drawer from falling off the cabinet. Moreover, the latch engages with the locking part (locking groove) of the locking element, ensuring a firm lock that will not loosen and the moving slide rail will not disengage from the fixed slide rail.

[0017] 2. When the drawer is opened (pulled out) to the corresponding position, simply pull the unlocking mechanism by hand. The unlocking mechanism will cause the locking mechanism to slide and disengage from the locking mechanism, thus unlocking the moving slide rail from the fixed slide rail. At this point, the entire drawer can be pulled out of the cabinet to disassemble it. When installing the drawer, simply push the drawer into the cabinet. When it is pushed to a certain position, the locking mechanism will engage with the locking part (locking groove) of the locking mechanism, thus completing the installation of the drawer on the cabinet. The entire disassembly and assembly process does not require the use of tools, making it convenient, time-saving, and labor-saving.

[0018] 3. The unlocking components are connected by a synchronous rod. Pulling one of the unlocking components will cause both unlocking components to slide and disengage from the locking component. It is not necessary to pull the two unlocking components separately with both hands, making the operation convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the furniture when the drawer is pulled out, according to one embodiment of the present invention.

[0020] Figure 2 This is an exploded structural diagram of furniture according to one embodiment of the present invention.

[0021] Figure 3 This is an exploded structural diagram of the furniture from another position in one embodiment of the present invention.

[0022] Figure 4 This is a front view of furniture in one embodiment of the present invention.

[0023] Figure 5 This is an exploded structural diagram of the locking mechanism in one embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the overall structure of the locking mechanism in one embodiment of the present invention.

[0025] Figure 7 This is a cross-sectional view of the locking mechanism when the latch extends in one embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the overall structure of the locking mechanism when the latch extends, according to one embodiment of the present invention.

[0027] Figure 9 This is a cross-sectional view of the locking mechanism from another position when the latch is extended, according to one embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of the overall structure of the locking mechanism when the latch is retracted in one embodiment of the present invention.

[0029] Figure 11 This is a cross-sectional view of the locking mechanism when the latch is retracted in one embodiment of the present invention.

[0030] Figure 12 This is a cross-sectional view of the locking mechanism from another position when the latch is retracted in one embodiment of the present invention.

[0031] Figures 13-16 This is a schematic diagram of the drawer pulling out process in the first application example of an embodiment of the present invention.

[0032] Figure 17 This is a top view of the furniture after the drawer has been pushed in, according to a first application example of an embodiment of the present invention.

[0033] Figure 18 This is a top view of the furniture in a second application example of an embodiment of the present invention. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] See Figures 1-17 This drawer slide assembly for locking and disassembling includes a fixed slide 1 and a movable slide 2. The movable slide 2 is provided with a locking mechanism 3 located away from its front end. The fixed slide 1 is provided with a locking element 4 located near its front end. The locking mechanism 3 is provided with a spring-loaded and telescopic latching element 5. The latching element 5 telescopically extends and retracts towards the locking element 4. Under the action of external force, the movable slide 2 slides on the fixed slide 1 and drives the latching element 5 to engage with the locking element 4, so that when the movable slide 2 slides to the corresponding position, it is positioned on the fixed slide 1 by the locking mechanism 3 and the locking element 4. The locking mechanism 3 is provided with an unlocking element 6 that cooperates with and connects to the latching element 5. Under the action of external force, the unlocking element 6 drives the latching element 5 to slide and disengage from the locking element 4.

[0036] The sliding direction of the locking fastener 5 is different from that of the sliding rail 2, and the two are arranged in a longitudinal and transverse manner.

[0037] The locking member 4 is provided with a guide part 10, a support part 11, and a locking part 12. When the movable slide rail 2 slides on the fixed slide rail 1, it drives the locking member 5 to slide into the locking part 12 along the guide part 10 and the support part 11, so that the locking member 5 is engaged on the locking part 12. The guide part 10 is a guide slope, the support part 11 is a straight surface, and the locking part 12 is a locking groove. The guide part 10 and the support part 11 are symmetrically arranged on both sides of the locking part 12, so that when the movable slide rail 2 moves forward or backward, the locking member 5 can slide into the locking part 12 along the guide part 10 and the support part 11, which is used for locking after the drawer is pulled out or pushed in. When the locking member 5 moves along the guide part 10, the locking member 5 gradually extends or retracts. When the locking member 5 moves along the support part 11, the locking member 5 retracts into the locking mechanism 3. When the locking member 5 slides into the locking part 12, the locking member 5 extends out of the locking mechanism 3.

[0038] A linkage guide 13 is provided between the locking element 5 and the unlocking element 6. The locking element 5 and the unlocking element 6 are connected through the linkage guide 13. A sliding engagement part 23 is provided between the unlocking element 6 and the locking mechanism 3. The unlocking element 6 and the locking element 5 are coupled through the linkage guide 13 (coupled movement: the unlocking element 6 and the locking element 5 move simultaneously, synchronously, or with a delay), and the unlocking element 6 slides on the locking mechanism 3 through the sliding engagement part 23. The sliding direction of the locking element 5 is different from the sliding direction of the unlocking element 6. Specifically, the linkage guide part 13 includes a sliding part 25 disposed on the locking member 5 and a sliding groove 26 (linear groove or curved groove) disposed on the unlocking member 6. When the unlocking member 6 and the locking member 5 are coupled, the sliding part 25 is slidably disposed on the sliding groove 26. A connecting member 27 is detachably installed at one end of the locking seat 7. A sliding mating part 23 is disposed on the connecting member 27. The sliding mating part 23 is a sliding mating groove. One end of the unlocking member 6 is slidably disposed on the sliding mating part 23. The locking member 5 passes through the connecting member 27. The connecting member 27 can cover the linkage guide part 13 for aesthetic purposes.

[0039] The locking mechanism 3 includes a locking seat 7, a first elastic element 8 is provided between the locking seat 7 and the locking member 5, and a sliding guide 9 is provided on the locking seat 7. The locking member 5 elastically extends and slides on the locking seat 7 through the first elastic element 8 and the sliding guide 9. The first elastic element 8 is a spring, and the sliding guide 9 is a linear groove. Under no external force, the locking member 5 always extends out of the locking mechanism 3 due to the elastic force of the first elastic element 8. When the unlocking member 6 is pulled (pulled forward), the unlocking member 6 drives the locking member 5 to retract into the locking mechanism 3 through the linkage guide 13. After the unlocking member 6 is released, the locking member 5 is reset through the first elastic element 8, that is, the locking member 5 extends out of the locking mechanism 3. At this time, the locking member 5 drives the unlocking member 6 to move through the linkage guide 13, so that the unlocking member 6 is reset to the waiting position.

[0040] A second elastic element 15 is provided between the locking seat 7 and the unlocking element 6 for resetting the unlocking element 6 to the pending position. The second elastic element 15 is a tension spring. Through the coordinated action of the first elastic element 8 and the second elastic element 15, the locking element 5 and the unlocking element 6 are effectively reset.

[0041] Two fixed slide rails 1 and two movable slide rails 2 are provided. Each movable slide rail 2 is provided with a locking mechanism 3, and each fixed slide rail 1 is provided with a locking element 4. The unlocking elements 6 on the two locking mechanisms 3 are connected by a synchronous rod 16. When one unlocking element 6 moves under the action of external force, it drives the other unlocking element 6 to move synchronously through the synchronous rod 16.

[0042] The locking seat 7 is provided with a limiting part 14, which is a limiting groove. The synchronizing rod 16 is limited and set on the limiting part 14. The unlocking member 6 and the synchronizing rod 16 are provided with a connecting transmission member 24. The unlocking member 6 and the synchronizing rod 16 are connected by the connecting transmission member 24. Specifically, the connecting transmission member 24 includes gears 28 set at both ends of the synchronizing rod 16 and racks 29 set on the unlocking member 6. The gears 28 and racks 29 mesh with each other.

[0043] In addition, see Figure 18 Alternatively, the drawer slide assembly for locking and disassembling can be without the synchronization rod 16. In this case, two hands are needed to pull the two unlocking parts 6 to unlock the latching part 5 and the locking part 4.

[0044] The locking seat 7 is provided with a first positioning surface 17 and a second positioning surface 18 with different positioning directions. The locking mechanism 3 is positioned vertically on the movable slide rail 2 through the first positioning surface 17. The locking mechanism 3 rests on the outside of the movable slide rail 2 through the second positioning surface 18. The first positioning surface 17 and the second positioning surface 18 are respectively provided on the locking seat 7, and a step is formed between them.

[0045] A drawer 19 (or drawer bottom plate) is provided on the movable slide rail 2, and a positioning part 20 is provided on the locking mechanism 3. One part of the drawer 19 is positioned vertically on the positioning part 20, and the other part of the drawer 19 is positioned vertically on the movable slide rail 2. A connecting part 21 is provided between the movable slide rail 2 and the locking mechanism 3. The movable slide rail 2 and the locking mechanism 3 are connected through the connecting part 21. Specifically, the connecting part 21 includes a buckle 30 provided on the movable slide rail 2 and a slot 31 provided on the locking seat 7. The buckle 30 and the slot 31 are engaged with each other.

[0046] The fixed slide rail 1 is located inside the cabinet 22; the drawer 19 is locked to the cabinet 22 by locking the locking mechanism 3 and locking element 4; or, the drawer 19 can be detached from the cabinet 22 by unlocking the locking mechanism 3 and locking element 4.

[0047] How does this drawer slide assembly for locking and unlocking work?

[0048] See Figures 13-17 When drawer 19 is pulled out to a certain position, continuing to pull drawer 19 causes the movable slide rail 2 to drive the locking element 5 to slide along the guide part 10 and the resting part 11 into the locking part 12 of the locking element 4, thus locking the movable slide rail 2 and the fixed slide rail 1 together, that is, locking drawer 19 onto the cabinet body 22. At this time, pulling the unlocking element 6 by hand causes the locking element 5 to slide out of the locking part 12, thereby releasing the lock between the movable slide rail 2 and the fixed slide rail 1. If drawer 19 is pulled out further at this time, it can be pulled out of the cabinet body 22, thus disassembling drawer 19. In addition, when the movable slide rail 2 and the fixed slide rail 1 are unlocked, the drawer can also be removed. 19. Push the drawer back into the cabinet 22 (i.e., close the drawer 19); After the drawer 19 is disassembled, if you want to put the drawer 19 back into the cabinet 22, push the drawer 19 into the cabinet 22. When it is pushed to a certain position, continue to push the drawer 19. The moving slide rail 2 will drive the locking part 5 to slide into the locking part 12 of the locking part 4 along the guide part 10 and the support part 11, so that the moving slide rail 2 and the fixed slide rail 1 are locked together. Then, pull the unlocking part 6 by hand. The locking part 5 will slide out of the locking part 12 to release the lock between the moving slide rail 2 and the fixed slide rail 1. Then, continue to push the drawer 19 to put the drawer 19 back into the cabinet 22.

[0049] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drawer slide assembly for locking and unlocking, comprising a fixed slide rail (1) and a movable slide rail (2), characterized in that: The movable slide rail (2) is provided with a locking mechanism (3) located away from the front end of the movable slide rail (2), and the fixed slide rail (1) is provided with a locking member (4) located near the front end of the fixed slide rail (1). The locking mechanism (3) is provided with a locking member (5) that can be elastically telescopically slid. The movable slide rail (2) slides on the fixed slide rail (1) under the action of external force and drives the locking member (5) to engage with the locking member (4), so that when the movable slide rail (2) slides to the corresponding position, it is positioned on the fixed slide rail (1) by the locking mechanism (3) and the locking member (4). The locking mechanism (3) is provided with an unlocking member (6) that cooperates with the locking member (5). Under the action of external force, the unlocking member (6) drives the locking member (5) to slide and disengage from the locking member (4). A linkage guide (13) is provided between the locking element (5) and the unlocking element (6). The locking element (5) and the unlocking element (6) are connected by the linkage guide (13). A sliding engagement (23) is provided between the unlocking element (6) and the locking mechanism (3). The unlocking element (6) is coupled to the locking element (5) through the linkage guide (13), and the unlocking element (6) slides on the locking mechanism (3) through the sliding engagement (23). The sliding direction of the locking element (5) is different from that of the unlocking element (6). The linkage guide (13) includes a sliding part (25) provided on the locking member (5) and a sliding groove (26) provided on the unlocking member (6). When the unlocking member (6) and the locking member (5) make coupled movements, the sliding part (25) is slidably provided on the sliding groove (26).

2. The drawer slide assembly for locking and disassembling according to claim 1, characterized in that: The sliding direction of the locking fastener (5) is different from that of the sliding rail (2), and the two are arranged in a longitudinal and transverse manner.

3. The drawer slide assembly for locking and disassembling according to claim 1, characterized in that: The locking member (4) is provided with a guide part (10), a support part (11) and a locking part (12). When the movable slide rail (2) slides on the fixed slide rail (1), it drives the locking member (5) to slide into the locking part (12) along the guide part (10) and the support part (11) so that the locking member (5) is engaged on the locking part (12).

4. The drawer slide assembly for locking and disassembling according to claim 1, characterized in that: The locking mechanism (3) includes a locking seat (7), a first elastic element (8) is provided between the locking seat (7) and the locking member (5), and a sliding guide (9) is provided on the locking seat (7). The locking member (5) elastically extends and slides on the locking seat (7) through the first elastic element (8) and the sliding guide (9).

5. The drawer slide assembly for locking and disassembling according to claim 4, characterized in that: A second elastic element (15) is provided between the locking seat (7) and the unlocking element (6) for resetting the unlocking element (6) to the desired position.

6. The drawer slide assembly for locking and disassembling according to claim 4, characterized in that: Two fixed slide rails (1) and two movable slide rails (2) are provided. Each movable slide rail (2) is provided with a locking mechanism (3), and each fixed slide rail (1) is provided with a locking element (4). The unlocking elements (6) on the two locking mechanisms (3) are connected by a synchronous rod (16). When one unlocking element (6) moves under the action of external force, it drives the other unlocking element (6) to move synchronously through the synchronous rod (16).

7. The drawer slide assembly for locking and disassembling according to claim 6, characterized in that: A limiting part (14) is provided on the locking seat (7), and the synchronizing rod (16) is limited on the limiting part (14); a connecting transmission part (24) is provided between the unlocking part (6) and the synchronizing rod (16), and the unlocking part (6) and the synchronizing rod (16) are connected by the connecting transmission part (24).

8. The drawer slide assembly for locking and disassembling according to claim 6, characterized in that: The locking seat (7) is provided with a first positioning surface (17) and a second positioning surface (18) with different positioning directions. The locking mechanism (3) is positioned vertically on the moving slide rail (2) through the first positioning surface (17), and the locking mechanism (3) rests on one side of the moving slide rail (2) through the second positioning surface (18).

9. The drawer slide assembly for locking and disassembling according to claim 1, characterized in that: A drawer (19) is provided on the movable slide rail (2), and a positioning part (20) is provided on the locking mechanism (3). One part of the drawer (19) is positioned vertically on the positioning part (20), and the other part of the drawer (19) is positioned vertically on the movable slide rail (2). A connecting part (21) is provided between the movable slide rail (2) and the locking mechanism (3), and the movable slide rail (2) and the locking mechanism (3) are connected by the connecting part (21). The fixed slide rail (1) is provided inside the cabinet (22). The drawer (19) is locked on the cabinet (22) by locking the locking mechanism (3) and the locking element (4); or, the drawer (19) can be detached from the cabinet (22) by unlocking the locking mechanism (3) and the locking element (4).

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