Sliding rail with rebound self-locking device

Abstract

The embodiment of the utility model discloses a sliding rail with a rebound self-locking device, a fixed seat is fixedly arranged on the inner wall of the tail end of a fixed sliding rail, a first sliding block and a second sliding block are respectively arranged at the front part and the rear part of the fixed seat in a sliding manner, and the first sliding block is connected with the fixed seat through a first elastic piece so that the first sliding block has elastic stress towards the rear part of the fixed seat; the second sliding block and the first sliding block are connected through a second elastic piece so that the second sliding block can have elastic stress towards the rear portion of the fixing base, the shifting fork is connected with the first sliding block in a swinging mode, and the linkage piece is arranged on the inner wall of the inner rail. The linkage piece is in linkage with the shifting fork to rotate, locking or unlocking is achieved on the fixing base, and the second elastic piece enables the inner rail to rebound during unlocking. The rebound self-locking device is arranged on the sliding rail, a handle is not needed, the drawer does not need to be provided with the handle, and the drawer looks more attractive; the device has the characteristics of simple structure, convenience in use, long service life, smoothness in operation and high practicability.

Description

Technical Field

[0001] This utility model relates to the field of slide rail device technology, and in particular to a slide rail with a rebound self-locking device. Background Technology

[0002] Currently, drawers in various office desks are equipped with smooth-sliding drawer slides. To ensure that the drawers close snugly against the desk and look neat and aesthetically pleasing, the existing technology uses internationally recognized self-closing angled drawer slides. These slides have a slightly downward-sloping section at the rear of the fixed rail. When the front rollers of the sliding rail on the drawer reach this inclined section, they automatically slide down under their own weight, ensuring the drawer closes completely. However, this type of self-closing angle-type drawer slide has the following shortcomings: 1. When the rollers of the slide slide are pushed to the lower end, the drawer's own weight alone causes the rollers to slide down at an angle of only 0.5 to 3 degrees, resulting in an inconspicuous closure and a very unsatisfactory user experience; 2. Due to the small bending angle, the drawer may slide out and fall to the ground if tilted slightly outwards; 3. Due to the structure, the fixed slide slide cannot be smoothly connected at the bending point, so when pushing or pulling the drawer, there is always a feeling of going uphill and then downhill, which is difficult to meet the user's requirements; 4. Since the drawer does not have a self-locking function, it is easy for the drawer to slide out under its own weight when moving the table, causing inconvenience in moving the furniture or even damage to it. Therefore, it is necessary to make further improvements.

[0003] The existing three-section drawer slides do not have a rebound mechanism. When installed on furniture, a handle needs to be added to pull the drawer, which increases the cost. The drawer also has greater resistance when opening or closing, requiring more effort to pull out the slides, making it inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a slide rail with a rebound self-locking device.

[0005] To solve the above-mentioned technical problems, this utility model provides a slide rail with a rebound self-locking device. The slide rail includes a fixed slide rail and a movable slide rail installed therein and movable relative to it. The movable slide rail includes a middle rail and an inner rail that are nested and slide, and includes a fixed base, a first sliding block, a second sliding block, a first elastic element, a second elastic element, a fork, and a linkage element.

[0006] The fixed seat is fixedly disposed on the inner wall of the tail end of the fixed slide rail. The first sliding block and the second sliding block are respectively slidably disposed on the front and rear of the fixed seat. The first sliding block is connected to the fixed seat through the first elastic element so that it has elastic stress towards the rear of the fixed seat. The second sliding block is connected to the first sliding block through the second elastic element so that it has elastic stress towards the front of the fixed seat. The fork is oscillatingly connected to the first sliding block. The linkage is disposed on the inner wall of the inner rail. The linkage links the fork to rotate and locks or unlocks it on the slide groove of the fixed seat. When unlocked, the first elastic element causes the inner rail to retract or the second elastic element causes the inner rail to rebound.

[0007] Furthermore, the slide groove is disposed at the front of the fixed base, and the bottom wall of the shift fork has a guide post adapted to the slide groove.

[0008] Furthermore, the slide includes a straight section and a first locking position and a second locking position disposed at both ends of the straight section. The second locking position has an outgoing inclined surface. When the guide post falls into the first locking position or the second locking position, the shift fork deflects and the shift fork is locked onto the fixed seat.

[0009] Furthermore, the bottom wall of the linkage has a first and a second lever that are staggered vertically, and the lever fork has a pushing block. When the slide rail is open, the guide post slides away from the second locking position along the outgoing inclined surface under the action of external force. The first lever pushes the lever fork from the rear of the pushing block, causing the guide post to slide along the straight section until it falls into the first locking position. When the slide rail is closed, the second lever pushes the lever fork from the front of the pushing block, causing the guide post to disengage from the first locking position. The pushing block slides inward along the inner rail through the first lever, and the guide post slides along the straight section until it falls into the second locking position.

[0010] Furthermore, the first sliding block has a groove, and when the guide post falls into the second locking position, the fork swings into the groove.

[0011] Furthermore, the second sliding block elastically abuts against the inner rail.

[0012] Furthermore, when the slide rail is in the open state, pushing the movable slide rail inward causes the inner rail to deflect the fork and disengage from the first locking position via the linkage. The fork then slides along the straight section until it falls into the second locking position, whereby the fork swings into the groove. The first sliding block and the middle rail stop sliding, the linkage separates from the fork, and the inner rail continues to slide inward until it is closed.

[0013] Furthermore, when the slide rail is closed, pushing the inner rail inward causes the second sliding block to slide inward under the push of the inner rail, simultaneously pulling the first sliding block. The fork swings and disengages from the second locking position. The second elastic element generates elastic force to push the inner rail outward. The linkage pushes the fork to slide along the straight section until it falls into the first locking position. The fork and the second sliding block stop sliding, and the moving slide rail continues to slide outward.

[0014] Furthermore, both the first elastic element and the second elastic element are tension springs.

[0015] Implementing the embodiments of this utility model has the following beneficial effects:

[0016] By setting a rebound self-locking device on the slide rail, when the drawer is opened, the drawer is first pushed inward, and the inner rail pushes the second slider all the way down. At this time, under the elastic force of the second elastic element, the second slider rebounds the inner rail, causing the drawer to rebound out. This way of opening the drawer does not require the use of a handle, so that there is no need to install a handle on the outside of the drawer, and the drawer looks more beautiful.

[0017] When closing the drawer, simply push the drawer inward. Under the elastic force of the first elastic element, the fork locks in the second locking position, thereby locking the drawer and closing it again.

[0018] It features simple structure, easy use, long life, smooth operation, and strong practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of the rebound self-locking device according to an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the combination of the rebound self-locking device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the shift fork structure according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the inner rail and linkage structure of an embodiment of this utility model;

[0024] In the picture:

[0025] 1. Fixed slide rail; 2. Moving slide rail; 21. Middle rail; 22. Inner rail; 3. Fixed base; 31. Slide groove; 311. First locking position; 312. Straight section; 313. Second locking position; 3131. Leading inclined surface; 4. First sliding block; 41. Groove; 5. Second sliding block; 6. First elastic element; 7. Second elastic element; 8. Shift fork; 81. Guide post; 82. Push block; 9. Linkage element; 91. First shift bar; 92. Second shift bar. Detailed Implementation

[0026] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a slide rail with a rebound self-locking device is disclosed. The slide rail includes a fixed slide rail 1 and a movable slide rail 2 installed inside it and movable relative to it. The movable slide rail 2 includes a middle rail 21 and an inner rail 22 that are nested and slide together. It includes a fixed base 3, a first sliding block 4, a second sliding block 5, a first elastic element 6, a second elastic element 7, a fork 8, and a linkage element 9. The fixed base 3 is fixedly disposed on the inner wall of the tail end of the fixed slide rail 1. The first sliding block 4 and the second sliding block 5 are respectively slidably disposed at the front and rear of the fixed base 3. The first sliding block 4 and the fixed base 3 are connected by a first elastic element 6 and a second elastic element 7. The elastic element 6 is connected to the first sliding block 4 to provide elastic stress towards the rear of the fixed base 3. The second sliding block 5 is connected to the first sliding block 4 via the second elastic element 7 to provide elastic stress towards the front of the fixed base 3. The second sliding block 5 elastically abuts against the inner rail 22. The fork 8 is oscillatingly connected to the first sliding block 4. The linkage element 9 is disposed on the inner wall of the inner rail 22. The linkage element 9 drives the fork 8 to rotate and locks or unlocks it on the slide groove 31 of the fixed base 3. When unlocked, the first elastic element 6 causes the inner rail 22 to retract or the second elastic element 7 causes the inner rail 22 to rebound. Preferably, both the first elastic element 6 and the second elastic element 7 are tension springs.

[0028] The front of the fixed base 3 is provided with a sliding groove 31, and the bottom wall of the shift fork 8 has a guide post 81 adapted to the sliding groove 31. The sliding groove 31 includes a straight portion 312 and a first locking position 311 and a second locking position 313 provided at both ends of the straight portion 312. The second locking position 313 has a guide ramp 3131. When the guide post 81 falls into the first locking position 311 or the second locking position 313, the shift fork 8 deflects and locks itself onto the fixed base 3. The first sliding block 4 has a groove 41. When the guide post 81 falls into the second locking position 313, the shift fork 8 swings into the groove 41. The shape of the groove 41 is adapted to the shape of the shift fork 8. The groove 41 and the second locking position 313 work together to lock the shift fork 8 onto the fixed base 3.

[0029] The bottom wall of the linkage 9 has a first lever 91 and a second lever 92 that are staggered vertically, and the fork 8 has a push block 82. When the slide rail is open, the guide post 81 slides along the guide slope 3131 and disengages from the second locking position 313 under the action of external force. The first lever 91 pushes the fork 8 from the rear of the push block 82, causing the guide post 81 to slide along the straight section 312 until it falls into the first locking position 311. When the slide rail is closed, the second lever 92 pushes the fork 8 from the front of the push block 82, causing the guide post 81 to disengage from the first locking position 311. The push block 82 then slides inward through the inner rail 22 linked by the first lever 91. The second lever 92 enters the fork 8 first. After the first lever 91 pushes the push block 82 away from the first locking position 311, the push block 82 abuts against the rear of the second lever 92. The guide post 81 slides along the straight section 312 until it falls into the second locking position 313. After the guide post 81 falls into the second locking position 313, the first lever 91 slides along the sliding path, and the linkage 9 separates from the lever fork 8 and continues to slide inward.

[0030] The working principle of this utility model is as follows:

[0031] When the drawer is open, the second elastic element 7 is stretched, pushing the drawer 2 inward. The inner rail 22, through the linkage 9, causes the fork 8 to deflect and disengage from the first locking position 311. The second elastic element 7 generates elastic force, and then the fork 8 slides along the straight section 312 until it falls into the second locking position 313. The fork 8 is positioned in the groove 41, and the first sliding block 4 and the middle rail 21 stop sliding. The linkage 9 separates from the fork 8, and the inner rail 22 continues to slide inward until it is closed. To close the drawer, simply push it inward. Under the elastic force of the second elastic element 7, the fork 8 locks in the second locking position 313, thus locking the drawer and closing it again.

[0032] With the slide rail closed, pushing the inner rail 22 inward causes the second sliding block 5 to slide inward under the push of the inner rail 22, simultaneously pulling the first sliding block 4. The fork 8 swings and disengages from the second locking position 313. The second elastic element 7 generates a spring force that pushes the inner rail 22 outward. The linkage element 9 pushes the fork 8 to slide along the straight section 312 until it falls into the first locking position 311. The fork 8 and the second sliding block 5 stop sliding, and the moving slide rail 2 continues to slide outward. By setting a rebound self-locking device on the slide rail, when the drawer is opened, first push the drawer inward. The inner rail 22 pushes the second slider 5 all the way down. At this time, under the spring force of the second elastic element 7, the second slider 5 rebounds the inner rail 22, causing the drawer to rebound out. This drawer opening method does not require a handle, so there is no need to install a handle on the outside of the drawer, making the drawer look more aesthetically pleasing.

[0033] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A slide rail with a bounce self-locking device, the slide rail comprising a fixed slide rail (1) and a movable slide rail (2) mounted in the fixed slide rail (1) and movable relative to the fixed slide rail (1), the movable slide rail (2) comprising a middle rail (21) and an inner rail (22) nested and sliding relative to each other, characterized in that, The fixed seat (3), the first sliding block (4), the second sliding block (5), the first elastic member (6), the second elastic member (7), the shift fork (8), and the linkage (9) are provided. The fixed seat (3) is fixedly arranged on the inner wall of the tail end of the fixed slide rail (1), the first sliding block (4) and the second sliding block (5) are respectively slidably arranged on the front and rear portions of the fixed seat (3), the first sliding block (4) is connected with the fixed seat (3) through the first elastic member (6) to have an elastic stress towards the rear portion of the fixed seat (3), the second sliding block (5) is connected with the first sliding block (4) through the second elastic member (7) to have an elastic stress towards the front portion of the fixed seat (3), the shift fork (8) is swingably connected with the first sliding block (4), and the linkage (9) is arranged on the inner wall of the inner rail (22); the linkage (9) drives the shift fork (8) to rotate and is locked or unlocked on the sliding groove (31) of the fixed seat (3), and when being unlocked, the first elastic member (6) makes the inner rail (22) retract or the second elastic member (7) makes the inner rail (22) rebound.

2. The slide rail with a bounce self-locking device according to claim 1, wherein, The sliding groove (31) is arranged on the front portion of the fixed seat (3), and the bottom wall of the shift fork (8) is provided with a guide column (81) matched with the sliding groove (31).

3. The slide rail with a bounce self-locking device according to claim 2, wherein, The sliding groove (31) comprises a straight portion (312) and first and second locking positions (311, 313) arranged at both ends of the straight portion (312), the second locking position (313) is provided with a guide slope (3131), when the guide column (81) falls into the first or second locking position (311, 313), the shift fork (8) is deflected, and the shift fork (8) is locked on the fixed seat (3).

4. The slide rail with a bounce self-locking device according to claim 3, wherein, The bottom wall of the linkage (9) is provided with first and second shift strips (91, 92) arranged in an up-down staggered manner, the shift fork (8) is provided with a pushing block (82), when the slide rail is opened, the guide column (81) slides along the guide slope (3131) under the action of external force and is separated from the second locking position (313), the first shift strip (91) pushes the shift fork (8) from the rear portion of the pushing block (82) to make the guide column (81) slide along the straight portion (312) until falling into the first locking position (311); when the slide rail is closed, the second shift strip (92) pushes the shift fork (8) from the front portion of the pushing block (82) to make the guide column (81) separate from the first locking position (311), the pushing block (82) drives the inner rail (22) to slide inwards through the first shift strip (91), and the guide column (81) slides along the straight portion (312) until falling into the second locking position (313).

5. The slide rail with a bounce self-locking device according to claim 4, wherein, The first sliding block (4) is provided with a groove (41), and when the guide column (81) falls into the second locking position (313), the shift fork (8) swings into the groove (41).

6. The slide rail with a bounce self-locking device according to claim 1, wherein The second sliding block (5) is elastically abutted against the inner rail (22).

7. The slide rail with a bounce self-locking device according to claim 5, wherein, In the open state of the slide rail, the movable slide rail (2) is pushed inwards, the inner rail (22) deflects the yoke (8) through the linkage (9) and disengages from the first locking position (311), then slides along the straight section (312) until falling into the second locking position (313), the yoke (8) swings into the groove (41), the first sliding block (4) and the middle rail (21) stop sliding, the linkage (9) separates from the yoke (8), and the inner rail (22) continues to slide inwards until closing.

8. The slide rail with a bounce self-locking device according to claim 7, wherein, In the closed state of the slide rail, the inner rail (22) is pushed inwards, the second sliding block (5) slides inwards under the push of the inner rail (22) while pulling the first sliding block (4), the yoke (8) swings and disengages from the second locking position (313), the second elastic member (7) generates elastic force to push the inner rail (22) to slide outwards, the linkage (9) pushes the yoke (8) to slide along the straight section (312) until falling into the first locking position (311), the yoke (8) and the second sliding block (5) stop sliding, and the movable slide rail (2) continues to slide outwards.

9. The slide rail with a bounce self-locking device according to any one of claims 1-8, characterized in that, The first elastic member (6) and the second elastic member (7) are both tensile springs.

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