A slide rail with an adjustable spring damper

Abstract

This invention discloses a slide rail with an adjustable elastic damper, comprising a fixed base, a first sliding block, a second sliding block, an elastic element, a damping element, a self-locking fork, and a hook. The second sliding block is connected to the first sliding block via the elastic element, giving it elastic stress towards the first sliding block. An elastic adjustment mechanism is provided on the fixed base to adjust the relative distance between the first and second sliding blocks, thereby adjusting the elastic force of the elastic element. This invention has a simple structure, is easy to assemble, has low production costs, and improves market competitiveness. The adjustable elastic damper incorporates an elastic adjustment mechanism, which can change the provided elastic force by adjusting the stroke of the elastic element, thereby adjusting the opening and closing elastic force of the guide rail, making it more convenient and comfortable for users to open and close drawers, adapting to the needs of different drawers. The stroke of the adjustable tooth groove can be adaptively adjusted according to the elastic force of the elastic element, accommodating more types of elastic elements.

Description

Technical Field

[0001] This invention relates to the field of slide rail device technology, and more particularly to a slide rail with an adjustable spring buffer. Background Technology

[0002] When using existing drawer slides, the operator applies force to the drawer, causing the drawer to move along the slides to extend or retract, thus enabling the drawer to be pushed or pulled.

[0003] Currently, drawers in various office desks are equipped with smooth-sliding drawer slides. To ensure the drawers close snugly against the desk for a neat and aesthetically pleasing appearance, 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, allowing the front rollers of the sliding rail mounted on the drawer to slide down automatically under their own weight when they reach this angled section, thus ensuring the drawer closes completely. However, this type of self-closing angled drawer slide has the following drawbacks:

[0004] If the spring used is not strong enough, the drawer may not close properly.

[0005] If the spring force used is too large, when the overall weight of the cabinet is relatively light, it is easy for the drawer to move the entire cabinet when it is opened, but the drawer is not fully opened.

[0006] If the drawer is tilted slightly outwards, it risks sliding out and falling to the ground.

[0007] Because the drawers do not have a self-locking function, they can easily slide out under their own weight when the table is moved, making it inconvenient to move.

[0008] Patent CN111728402B discloses an adjustable rebound slide rail, including an outer rail, an inner rail, and a rebound device. The inner rail cooperates with the outer rail, and the rebound device is located at one end of the outer rail. A locking hook is provided on the inner rail, corresponding to the rebound device. An adjustment groove is provided on the inner rail, and the locking hook is fixed to the adjustment groove by an adjustment screw. The length direction of the adjustment groove is consistent with the movement direction of the inner rail. By providing an adjustment groove on the inner rail and turning the adjustment screw, the position of the locking hook in the adjustment groove can be adjusted. Therefore, the front-to-back position of the drawer fixed to the locking hook when closed can be adjusted. The structure is simple and easy to adjust. The rebound device allows the inner rail to move when external force is applied to the drawer fixed to the inner rail, thus popping the drawer out without manually pulling it. This separates the drawer end face from the cabinet exterior, facilitating subsequent drawer opening. However, this patent only adjusts the closed position of the drawer, requires tightening, and lacks a buffer function. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a slide rail with an adjustable elastic damper.

[0010] To solve the above-mentioned technical problems, the present invention provides a slide rail with an adjustable elastic damper. 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, and also includes a fixed seat, a first sliding block, a second sliding block, an elastic element, and a damping element.

[0011] The fixed base 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 rear and front parts of the fixed base. The second sliding block is connected to the first sliding block through the elastic element so that it has elastic stress on the first sliding block. The fixed base is provided with an elastic adjustment mechanism. The fixed base is connected to the second sliding block through the damping element. The elastic adjustment mechanism is used to adjust the relative distance between the first sliding block and the second sliding block, thereby adjusting the elastic force of the elastic element.

[0012] Furthermore, the elastic adjustment mechanism includes an adjusting gear and an adjusting tooth groove. The first sliding block has a mating hole on its plane. The adjusting part of the adjusting gear is rotatably disposed in the mating hole. The adjusting tooth groove is disposed on the fixed base. The gear part of the adjusting gear mates with the adjusting tooth groove. The length direction of the adjusting tooth groove is consistent with the length direction of the slide rail.

[0013] Furthermore, it also includes a self-locking fork and a hook. The front part of the fixed base is provided with a self-locking groove. The self-locking fork is oscillatingly disposed in the second sliding block and has a guide post. The hook is disposed on the inner wall of the inner rail. The upper end of the guide post is movably engaged with the hook, and the lower end slides in the self-locking groove. The self-locking groove has a locking position, which is used to lock or unlock the second sliding block.

[0014] Furthermore, when the slide rail is closed, pulling the inner rail causes the self-locking fork to slide along the self-locking groove via the hook. The elastic element generates resistance, and the damping element generates damping force until the self-locking fork deflects and falls into the locking position. The second sliding block is locked on the fixed seat, the inner rail separates from the second sliding block, and the movable slide rail can be pulled open.

[0015] Furthermore, when the slide rail is in the open state, pushing the inner rail causes the self-locking fork to deflect and disengage from the locking position via the hook. The elastic element generates elastic force, which drives the second sliding block to move. The damping element generates damping force, and the slide rail slowly closes.

[0016] Furthermore, the inner wall of the hook has a recess, and when the upper end of the guide post is placed into the recess, the self-locking fork deflects.

[0017] Furthermore, the self-locking fork deflects, the guide post falls into the locking position, and the second sliding block is locked onto the fixed seat.

[0018] Furthermore, the elastic element is disposed in the groove of the fixed base, and both ends of the elastic element are respectively connected to the first sliding block and the second sliding block.

[0019] Furthermore, the damping component includes a hydraulic cylinder body and a piston rod. The hydraulic cylinder body is fixedly mounted on the fixed base, and one end of the piston rod is retractably mounted inside the hydraulic cylinder body, while the other end is connected to the second sliding block.

[0020] Furthermore, the elastic element is a tension spring.

[0021] Implementing this invention has the following beneficial effects:

[0022] The adjustable spring damper is equipped with an elastic adjustment mechanism, which can change the provided spring force by adjusting the stroke of the elastic element, thereby adjusting the opening and closing spring force of the slide rail, making it more convenient and comfortable for users to open and close the drawer, and adapting to the needs of different drawers; it has a simple structure, is easy to assemble, has low production cost, and improves market competitiveness.

[0023] The travel of the adjustable tooth groove can be adaptively adjusted according to the elastic force of the elastic element, making it suitable for more types of elastic elements. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the fixed slide rail and the movable slide rail structure according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the fixed slide rail and the elastic adjustable buffer structure according to an embodiment of the present invention;

[0027] Figure 4 This is an exploded view of an elastic adjustable buffer according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the elastic adjustable buffer structure according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the fixing base structure according to an embodiment of the present invention;

[0030] Figure 7This is a schematic diagram of the structure of the first sliding block and the second sliding block according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the adjusting gear structure according to an embodiment of the present invention;

[0032] Figure 9 This is an exploded view of the damping component, the fixing seat, and the second sliding block according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the self-locking shift fork structure according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the hook structure according to an embodiment of the present invention;

[0035] In the diagram: 1. Fixed slide rail, 2. Moving slide rail, 201. Middle rail, 202. Inner rail, 3. Fixed seat, 301. Rear part, 302. Front part, 303. Self-locking groove, 3031. Locking position, 304. Adjusting tooth groove, 305. Groove, 4. First sliding block, 401. Mating hole, 5. Second sliding block, 6. Adjusting gear, 601. Adjusting part, 602. Gear part, 7. Elastic element, 8. Damping element, 801. Hydraulic cylinder body, 802. Piston rod, 9. Self-locking shift fork, 901. Guide post, 10. Hook, 1001. Recess. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-5As shown, a slide rail with an adjustable elastic damper is disclosed. The slide rail includes a fixed slide rail 1 and a movable slide rail 2 installed therein and movable relative to it. The movable slide rail 2 includes a middle rail 201 and an inner rail 202, and also includes an adjustable elastic damper. The adjustable elastic damper includes a fixed base 3, a first sliding block 4, a second sliding block 5, an elastic element 7, a damping element 8, a self-locking fork 9, and a hook 10. 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 slidably disposed on the rear part 301 and the front part 302 of the fixed base 3, respectively. The second sliding block 5 is connected to the first sliding block 4 through the elastic element 7 so that it has elastic stress on the first sliding block 4. An elastic adjustment mechanism is provided on the fixed base 3. The elastic adjustment mechanism is used to adjust the relative distance between the first sliding block 4 and the second sliding block 5, thereby adjusting the elastic force of the elastic element 7. The fixed base 3 is connected to the second sliding block 5 via the damping element 8. The front part 302 of the fixed base 3 is provided with a self-locking groove 303. The self-locking fork 9 is oscillatingly disposed within the second sliding block 5 and has a guide post 901. The hook 10 is disposed on the inner wall of the inner rail 202. The upper end of the guide post 901 is movably engaged with the hook 10, and the lower end slides within the self-locking groove 303. The self-locking groove 303 has a locking position 3031, which is used to lock or unlock the second sliding block 5. The elastic adjustable damper is equipped with an elastic adjustment mechanism, which can change the provided elastic force by adjusting the stroke of the elastic element 7, thereby adjusting the opening and closing elastic force of the slide rail, making it more convenient and comfortable for users to open and close drawers, adapting to the needs of different drawers.

[0038] like Figure 6-8 As shown, the elastic adjustment mechanism includes an adjusting gear 6 and an adjusting groove 304. The first sliding block 4 has a mating hole 401 on its plane. The adjusting part 601 of the adjusting gear 6 is rotatably disposed within the mating hole 401. The adjusting groove 304 is disposed on the fixed base 3. Preferably, the length direction of the adjusting groove 304 is consistent with the length direction of the slide rail. The gear part 602 of the adjusting gear 6 engages with the adjusting groove 304. Rotating the adjusting gear 6 adjusts the relative distance between the first sliding blocks 4, thereby adjusting the elastic force of the elastic element 7. The stroke of the adjusting groove 304 can be adaptively adjusted according to the magnitude of the elastic force of the elastic element 7, adapting to more types of elastic elements 7.

[0039] It should be noted that in this embodiment, the elastic adjustment mechanism uses the cooperation of the adjusting gear 6 and the adjusting groove 304. However, the key is to adjust the elastic force of the elastic element 7. Therefore, if the adjusting gear 6 is replaced with a roller or the shape of the adjusting groove 304 is geometrically changed, the relative distance between the first sliding block 4 and the second sliding block 5 is changed by adjusting the fixed base 3. That is, for the simple changes made to the elastic adjustment mechanism in this embodiment, other manufacturers, sellers or users who imitate this application with only slight modifications should be regarded as equivalent infringement.

[0040] like Figure 7 As shown, the elastic element 7 is disposed in the groove 305 of the fixed base 3, and its two ends are respectively connected to the first sliding block 4 and the second sliding block 5. Preferably, the elastic element 7 is a tension spring.

[0041] like Figure 9 As shown, the damping component 8 includes a hydraulic cylinder body 801 and a piston rod 802. The hydraulic cylinder body 801 is fixedly mounted on the fixed base 3. One end of the piston rod 802 is retractably mounted inside the hydraulic cylinder body 801, and the other end is connected to the second sliding block 5.

[0042] like Figure 10 and 11 As shown, the inner wall of the hook 10 has a recess 1001. When the upper end of the guide post 901 is placed into the recess 1001, the self-locking fork 9 deflects. When the self-locking fork 9 deflects, the guide post 901 falls into the locking position 3031, and the second sliding block 5 is locked on the fixed seat 3.

[0043] The specific working principle of the elastic adjustable buffer of the present invention is as follows:

[0044] With the slide rail closed, pull the inner rail 202 outward. The inner rail 202 drives the self-locking fork 9 to slide along the self-locking groove 303 via the hook 10. The elastic element 7 generates resistance, and the damping element 8 generates damping force until the self-locking fork 9 deflects and falls into the locking position 3031. The second sliding block 5 is locked on the fixed seat 3, the inner rail 202 is separated from the second sliding block 5, and the movable slide rail 2 can be pulled open.

[0045] When the slide rail is open, push the inner rail 202. The inner rail 202 causes the self-locking fork 9 to deflect and disengage from the locking position 3031 through the hook 10. The elastic element 7 generates elastic force, which drives the second sliding block 5 to move. The damping element 8 generates damping force, and the slide rail slowly closes.

[0046] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A slide rail with an adjustable spring damper, the slide rail comprising a fixed slide rail (1) and a movable slide rail (2) mounted therein and movable relative to it, the movable slide rail (2) comprising a middle rail (201) and an inner rail (202), characterized in that, It also includes a fixed base (3), a first sliding block (4), a second sliding block (5), an elastic element (7), and a damping element (8); The fixed seat (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 on the rear (301) and front (302) of the fixed seat (3). The second sliding block (5) is connected to the first sliding block (4) through the elastic element (7) so that it has elastic stress on the first sliding block (4). The fixed seat (3) is provided with an elastic adjustment mechanism. The fixed seat (3) is connected to the second sliding block (5) through the damping element (8). The elastic adjustment mechanism is used to adjust the relative distance between the first sliding block (4) and the second sliding block (5), thereby adjusting the elastic force of the elastic element (7). The elastic adjustment mechanism includes an adjustment gear (6) and an adjustment groove (304). The first sliding block (4) has a mating hole (401) on its plane. The adjustment part (601) of the adjustment gear (6) is rotatably disposed in the mating hole (401). The adjustment groove (304) is disposed on the fixed seat (3). The gear part (602) of the adjustment gear (6) is engaged with the adjustment groove (304). It also includes a self-locking fork (9) and a hook (10). The front part (302) of the fixed base (3) is provided with a self-locking groove (303). The self-locking fork (9) is oscillatingly disposed in the second sliding block (5) and has a guide post (901). The hook (10) is disposed on the inner wall of the inner rail (202). The upper end of the guide post (901) is movably engaged with the hook (10), and the lower end slides in the self-locking groove (303).

2. The slide rail with an adjustable elastic buffer according to claim 1, characterized in that, The length direction of the adjusting groove (304) is consistent with the length direction of the slide rail.

3. A slide rail with an adjustable elastic buffer according to claim 1, characterized in that, The self-locking groove (303) has a locking position (3031) for locking or unlocking the second sliding block (5).

4. A slide rail with an adjustable elastic buffer according to claim 3, characterized in that, When the slide rail is closed, the inner rail (202) is pulled. The inner rail (202) drives the self-locking fork (9) to slide along the self-locking groove (303) through the hook (10). The elastic element (7) generates resistance, and the damping element (8) generates damping force until the self-locking fork (9) deflects and falls into the locking position (3031). The second sliding block (5) is locked on the fixed seat (3). The inner rail (202) is separated from the second sliding block (5), and the movable slide rail (2) can be pulled open.

5. A slide rail with an adjustable elastic buffer according to claim 3, characterized in that, When the slide rail is in the open state, push the inner rail (202), and the inner rail (202) will cause the self-locking fork (9) to deflect and disengage from the locking position (3031) through the hook (10). The elastic element (7) will generate elastic force, which will drive the second sliding block (5) to move. The damping element (8) will generate damping force, and the slide rail will slowly close.

6. A slide rail with an adjustable elastic buffer according to claim 3, characterized in that, The hook (10) has a recess (1001) on its inner wall. When the upper end of the guide post (901) is placed into the recess (1001), the self-locking fork (9) deflects.

7. A slide rail with an adjustable elastic buffer according to claim 6, characterized in that, When the self-locking fork (9) deflects, the guide post (901) falls into the locking position (3031), and the second sliding block (5) is locked on the fixed seat (3).

8. A slide rail with an adjustable elastic buffer according to claim 1, characterized in that, The elastic element (7) is disposed in the groove (305) of the fixed base (3), and the two ends of the elastic element (7) are respectively connected to the first sliding block (4) and the second sliding block (5).

9. A slide rail with an adjustable elastic buffer according to claim 1, characterized in that, The damping component (8) includes a hydraulic cylinder body (801) and a piston rod (802). The hydraulic cylinder body (801) is fixedly mounted on the fixed base (3). One end of the piston rod (802) is retractably mounted inside the hydraulic cylinder body (801), and the other end is connected to the second sliding block (5).

10. A slide rail with an adjustable spring buffer according to any one of claims 1-9, characterized in that, The elastic element (7) is a tension spring.

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