Slide rail with elastic force adjustable buffer

Abstract

The invention discloses a sliding rail with an elastic-force-adjustable buffer. The sliding rail comprises a fixed seat, a first sliding block, a second sliding block, an elastic piece, a damping piece, a self-locking shifting fork and a hook. The second sliding block and the first sliding block are connected through an elastic piece so that the second sliding block can have elastic stress towards the first sliding block, and an elastic adjusting mechanism is arranged on the fixing base and used for adjusting the relative distance between the first sliding block and the second sliding block so as to adjust the elastic force of the elastic piece. The device is simple in structure, convenient to assemble and low in production cost, and the market competitiveness is improved; an elastic adjusting mechanism is arranged in the elastic-force-adjustable buffer and can change the provided elastic force by adjusting the stroke of an elastic piece, so that the opening and closing elastic force of the guide rail is adjusted, a user can open and close the drawer more conveniently and comfortably, and the use requirements of different drawers are met; the stroke of the adjusting tooth groove can be adaptively adjusted according to the elastic force of the elastic piece, and more types of elastic pieces can be adapted.

Description

Technical Field

[0001] The invention relates to the technical field of slide rail devices, and in particular to a slide rail with an elastically adjustable buffer. Background Art

[0002] When the existing drawer slide rail is in use, the operator acts on the drawer, so that the drawer drives the slide rail to extend and retract, thereby realizing the pushing and pulling of the drawer.

[0003] At present, drawers of various office desks are equipped with slide rails. In order to make the drawer close to the desk after closing, it looks neat and beautiful. The existing technology adopts a self-closing angle rail of international general design, and a section of the guide rail is slightly inclined downward at the rear end of the fixed rail, so that the front roller of the sliding rail installed on the drawer automatically slides down under the action of its own weight when it moves to the inclined section, thereby ensuring that the drawer is completely closed. However, this self-closing angle rail has always had the following shortcomings:

[0004] If the spring force used is insufficient, the drawer may not be able to close properly.

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

[0006] When a drawer is tilted slightly outward, there is a risk that the drawer will slide out and fall to the ground;

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

[0008] The invention of patent number 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, the rebound device is arranged at one end of the outer rail, a lock hook is arranged on the inner rail, the lock hook and the rebound device are arranged correspondingly, an adjustment slot is provided on the inner rail, the lock hook is fixed on the adjustment slot by an adjustment screw, and the length direction of the adjustment slot is consistent with the moving direction of the inner rail. By providing an adjustment slot on the inner rail, the position of the lock hook on the adjustment slot can be adjusted by screwing the adjustment screw, so that the front and rear positions of the drawer fixed with the lock hook when closed can be adjusted, the structure is simple and the adjustment is convenient; by providing a rebound device, when an external force presses on the drawer fixed with the inner rail, the inner rail can be driven to move through the action of the rebound device to realize the ejection of the drawer, and the drawer end face can be separated from the outer end face of the cabinet without manually pulling the drawer, so that the drawer can be pulled open later. However, this patent can only adjust the closing position of the drawer, and it needs to be tightened, and there is no 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 elastically adjustable buffer.

[0010] In order to solve the above technical problems, the present invention provides a slide rail with an elastically adjustable buffer, wherein the slide rail comprises a fixed slide rail and a movable slide rail installed therein and movable relative thereto, wherein the movable slide rail comprises a middle rail and an inner rail, and further comprises a fixed seat, a first sliding block, a second sliding block, an elastic member, and a damping member;

[0011] The fixed seat is fixedly arranged on the inner wall of the rear end of the fixed slide rail, the first sliding block and the second sliding block are slidably arranged at the rear and front of the fixed seat respectively, the second sliding block is connected to the first sliding block through the elastic member so that it has elastic stress toward the first sliding block, an elastic adjustment mechanism is arranged on the fixed seat, the fixed seat is connected to the second sliding block through the damping member, and 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 member.

[0012] Furthermore, the elastic adjustment mechanism includes an adjusting gear and an adjusting tooth groove. A matching hole is provided on the plane of the first sliding block. The adjusting part of the adjusting gear can be rotatably arranged in the matching hole. The adjusting tooth groove is arranged on the fixed seat. The gear part of the adjusting gear cooperates 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, a self-locking groove is provided at the front of the fixed seat, the self-locking fork is swingably set in the second sliding block and has a guide column, the hook is set on the inner wall of the inner rail, the upper end of the guide column is movably matched with the hook, and the lower end slides in the self-locking groove, the self-locking groove has a locking position, and the locking position is used to lock or unlock the second sliding block.

[0014] Furthermore, when the slide rail is in a closed state, the inner rail is pulled, and the inner rail drives the self-locking fork to slide along the self-locking groove through the hook, the elastic member generates resistance, and the damping member 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 is separated 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, the inner rail is pushed, and the inner rail causes the self-locking fork to deflect and disengage from the locking position through the hook, the elastic member generates elastic force to drive the second sliding block to move, the damping member generates damping force, and the slide rail slowly closes.

[0016] Furthermore, the inner wall of the hook has a concave position, and when the upper end of the guide column is placed in the concave position, the self-locking fork is deflected.

[0017] Furthermore, the self-locking fork is deflected, the guide column falls into the locking position, and the second sliding block is locked on the fixing seat.

[0018] Furthermore, the elastic member is disposed in a groove of the fixing seat, and two ends of the elastic member are respectively connected to the first sliding block and the second sliding block.

[0019] Furthermore, the damping member comprises a hydraulic cylinder body and a piston rod, the hydraulic cylinder body is fixedly arranged on the fixing seat, one end of the piston rod is telescopically arranged in the hydraulic cylinder body, and the other end is connected to the second sliding block.

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

[0021] The implementation of the present invention has the following beneficial effects:

[0022] The elastic force adjustable buffer is provided with an elastic adjustment mechanism, which can change the elastic force provided by adjusting the stroke of the elastic member, thereby adjusting the opening and closing elastic force of the slide rail, making it more convenient and comfortable for users to open and close the drawer to meet the needs of different drawers; the structure is simple, the assembly is convenient, the production cost is low, and the market competitiveness is improved;

[0023] The stroke of the tooth groove can be adjusted adaptively according to the elastic force of the elastic member, so as to be suitable for more types of elastic members. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 1 is a schematic diagram of the structure of a fixed slide rail and an elasticity-adjustable buffer according to an embodiment of the present invention;

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

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

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

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

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

[0032] Fig. 9 is an exploded view of the damping member, the fixing seat and the second sliding block of an embodiment of the present invention;

[0033] Fig.10 2 is a schematic diagram of the structure of a self-locking fork according to an embodiment of the present invention;

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

[0035] In the figure: 1, fixed slide rail, 2, movable 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, matching hole, 5, second sliding block, 6, adjusting gear, 601, adjusting part, 602, gear part, 7, elastic part, 8, damping part, 801, hydraulic cylinder body, 802, piston rod, 9, self-locking fork, 901, guide column, 10, hook, 1001, concave position. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clear, 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 elastically adjustable buffer comprises a fixed slide rail 1 and a movable slide rail 2 installed therein and movable relative thereto, the movable slide rail 2 comprises a middle rail 201 and an inner rail 202, and also comprises an elastically adjustable buffer, the elastically adjustable buffer comprises a fixed seat 3, a first sliding block 4, a second sliding block 5, an elastic member 7, a damping member 8, a self-locking fork 9, and a hook 10; the fixed seat 3 is fixedly arranged on the inner wall of the rear end of the fixed slide rail 1, the first sliding block 4 and the second sliding block 5 are slidably arranged on the rear part 301 and the front part 302 of the fixed seat 3 respectively, the second sliding block 5 is connected to the first sliding block 4 by the elastic member 7 so that it has an elastic stress toward the first sliding block 4, and an elastic adjustment mechanism is arranged on the fixed seat 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 member 7. The fixing seat 3 is connected to the second sliding block 5 through the damping member 8. The front portion 302 of the fixing seat 3 is provided with a self-locking groove 303. The self-locking fork 9 is swingably provided in the second sliding block 5 and has a guide column 901. The hook 10 is provided on the inner wall of the inner rail 202. The upper end of the guide column 901 is movably matched with the hook 10, and the lower end slides in the self-locking groove 303. The self-locking groove 303 has a locking position 3031, and the locking position 3031 is used to lock or unlock the second sliding block 5. An elastic adjustment mechanism is provided in the elastic force adjustable buffer, which can change the elastic force provided by adjusting the stroke of the elastic member 7, thereby adjusting the opening and closing elastic force of the slide rail, so that the user can open and close the drawer more conveniently and comfortably to meet the use needs of different drawers.

[0038] like Figure 6-8 As shown, the elastic adjustment mechanism includes an adjustment gear 6 and an adjustment tooth groove 304. A matching hole 401 is provided on the plane of the first sliding block 4. The adjustment portion 601 of the adjustment gear 6 can be rotatably arranged in the matching hole 401. The adjustment tooth groove 304 is arranged on the fixed seat 3. Preferably, the length direction of the adjustment tooth groove 304 is consistent with the length direction of the slide rail. The gear portion 602 of the adjustment gear 6 cooperates with the adjustment tooth groove 304; the adjustment gear 6 is rotated to adjust the relative distance between the first sliding block 4 and the first sliding block 4, thereby adjusting the elastic force of the elastic member 7. The stroke of the adjustment tooth groove 304 can be adaptively adjusted according to the elastic force of the elastic member 7, so as to adapt to more types of elastic members 7.

[0039] It should be noted that the elastic adjustment mechanism in this embodiment adopts the mode of cooperation between the adjustment gear 6 and the adjustment tooth groove 304, but the key lies in the elastic force of the adjustment elastic member 7. Therefore, assuming that the adjustment gear 6 is replaced by a roller or the shape of the adjustment tooth groove 304 is geometrically changed, etc., adjustments are made on the fixed seat 3 to change the relative distance between the first sliding block 4 and the second sliding block 5. That is, for the simple changes made to the elastic adjustment mechanism in this embodiment, other manufacturers, sellers or users only imitate this application with slight modifications, which should be regarded as equivalent infringement.

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

[0041] like Fig. 9 As shown, the damping member 8 includes a hydraulic cylinder body 801 and a piston rod 802 . The hydraulic cylinder body 801 is fixedly disposed on the fixing seat 3 . One end of the piston rod 802 is telescopically disposed in the hydraulic cylinder body 801 , and the other end is connected to the second sliding block 5 .

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

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

[0044] When the slide rail is in the closed state, the inner rail 202 is pulled outward, and the inner rail 202 drives the self-locking fork 9 to slide along the self-locking groove 303 through the hook 10. The elastic member 7 generates resistance and the damping member 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 in the open state, the inner rail 202 is pushed, and 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 member 7 generates elastic force to drive the second sliding block 5 to move, and the damping member 8 generates damping force, and the slide rail slowly closes.

[0046] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A slide rail with an elastically adjustable buffer, the slide rail comprising a fixed slide rail (1) and a movable slide rail (2) installed in the fixed slide rail and movable relative to the fixed slide rail, the movable slide rail (2) comprising a middle rail (201) and an inner rail (202), characterized in that: It also includes a fixed seat (3), a first sliding block (4), a second sliding block (5), an elastic member (7), and a damping member (8); The fixed seat (3) is fixedly arranged on the inner wall of the rear end of the fixed slide rail (1); the first sliding block (4) and the second sliding block (5) are respectively slidably arranged on the rear part (301) and the front part (302) of the fixed seat (3); the second sliding block (5) is connected to the first sliding block (4) through the elastic member (7) so that it has an elastic stress toward the first sliding block (4); an elastic adjustment mechanism is arranged on the fixed seat (3); the fixed seat (3) is connected to the second sliding block (5) through the damping member (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 member (7).

2. A slide rail with an elastically adjustable buffer according to claim 1, characterized in that: The elastic adjustment mechanism comprises an adjustment gear (6) and an adjustment tooth groove (304); a matching hole (401) is provided on the plane of the first sliding block (4); an adjustment portion (601) of the adjustment gear (6) can be rotatably arranged in the matching hole (401); the adjustment tooth groove (304) is arranged on the fixed seat (3); the gear portion (602) of the adjustment gear (6) matches the adjustment tooth groove (304); and the length direction of the adjustment tooth groove (304) is consistent with the length direction of the slide rail.

3. The slide rail with elasticity-adjustable buffer according to claim 1, characterized in that: The invention also comprises a self-locking fork (9) and a hook (10); the front part (302) of the fixing seat (3) is provided with a self-locking groove (303); the self-locking fork (9) is swingably arranged in the second sliding block (5) and has a guide column (901); the hook (10) is arranged on the inner wall of the inner rail (202); the upper end of the guide column (901) is movably matched with the hook (10); the lower end slides in the self-locking groove (303); the self-locking groove (303) has a locking position (3031); the locking position (3031) is used to lock or unlock the second sliding block (5).

4. The slide rail with elasticity-adjustable buffer according to claim 3, characterized in that: When the slide rail is in the closed state, the inner rail (202) is pulled, and the inner rail (202) drives the self-locking fork (9) to slide along the self-locking groove (303) through the hook (10), the elastic member (7) generates resistance, and the damping member (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. The slide rail with elasticity-adjustable buffer according to claim 3, characterized in that: When the slide rail is in the open state, the inner rail (202) is pushed, and 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 member (7) generates elastic force to drive the second sliding block (5) to move, the damping member (8) generates damping force, and the slide rail slowly closes.

6. The slide rail with elasticity-adjustable buffer according to claim 3, characterized in that: The inner wall of the hook (10) has a recess (1001), and when the upper end of the guide column (901) is placed in the recess (1001), the self-locking fork (9) is deflected.

7. The slide rail with elasticity-adjustable buffer according to claim 6, characterized in that: The self-locking fork (9) is deflected, the guide column (901) falls into the locking position (3031), and the second sliding block (5) is locked on the fixing seat (3).

8. The slide rail with elasticity-adjustable buffer according to claim 1, characterized in that: The elastic member (7) is arranged in the groove (305) of the fixing seat (3), and two ends of the elastic member (7) are respectively connected to the first sliding block (4) and the second sliding block (5).

9. The slide rail with elasticity-adjustable buffer according to claim 1, characterized in that: The damping member (8) comprises a hydraulic cylinder body (801) and a piston rod (802); the hydraulic cylinder body (801) is fixedly arranged on the fixed seat (3); one end of the piston rod (802) is telescopically arranged in the hydraulic cylinder body (801), and the other end is connected to the second sliding block (5).

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

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