Hidden slide rail with bounce buffer

Abstract

The application discloses a hidden slide rail with a rebound buffer device, which comprises a main support fixedly arranged on a fixed rail, wherein the main support is parallel to the sliding direction of a sliding rail, and a sliding groove is arranged in the main support; a sliding bar and a sliding block are slidingly arranged in the sliding groove; a first spring is arranged between the sliding bar and the sliding block, so that the sliding bar has an elastic tendency to slide in the direction of being drawn out of the sliding rail, and the sliding block has an elastic tendency to slide in the direction of being drawn out of the sliding rail; a fixed end of an automatic extension oil cylinder is arranged on the main support, and a movable end of the automatic extension oil cylinder is movably connected with the sliding block; one end of a first swing hook is swingingly connected with the sliding bar; one end of a second swing hook is swingingly connected with the sliding block; and a poking bar is fixedly arranged on an outer rail. The application has the advantages of compact structure, simple and convenient operation, automatic rebound, automatic locking and buffering of the drawer through the arrangement of the mutually matched structures, and improved operation quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slide rail device, in particular to a hidden slide rail with rebound buffering device. BACKGROUND

[0002] In the present life, the drawer is a kind of appliance commonly used in our life, and the drawer usually needs to be used in cooperation with the slide rail, and the slide rail is also called guide rail, slide, which is fixed on the cabinet of furniture, and is used for the connection of the drawer or the cabinet plate of furniture, and is suitable for the connection of the drawer of furniture such as cabinet, furniture, briefcase, bathroom cabinet and wooden and steel furniture.

[0003] The method of the prior art is to use the internationally universal design self-closing angle type guide rail, a section of downward slightly inclined guide rail is arranged at the rear end of the fixed rail, so that when the front roller of the slide rail on the drawer walks to the inclined section, it automatically slides downward under the action of gravity, thereby ensuring that the drawer is completely closed. However, the self-closing angle type guide rail has the following disadvantages: when the roller of the slide rail is pushed to the lower sliding end, only the gravity of the drawer makes the roller slide downward at an angle of 2.5 to 3 degrees, the downward sliding closing is not obvious, and the use effect is very unsatisfactory; since the bending angle is small and cannot be self-locked, when the drawer is slightly inclined outward, it may slide out and fall to the ground; since the drawer has no self-locking function, when the table is moved, the drawer is easy to slide out under the action of gravity, causing inconvenience in moving.

[0004] With the development of society and the continuous change of people's thoughts and behaviors, many new requirements have been put forward for various things in daily life in use. Therefore, the humanization and simplification of functional slide rails are increasingly required. In order to meet the needs of people in real life, it is necessary to develop a new structure device with intelligent self-locking, rebounding and buffering functions. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a hidden slide rail with rebound buffering device.

[0006] In order to solve the above technical problems, the present application provides a hidden slide rail with rebound buffering device, which comprises a fixed rail fixedly arranged and a slide rail slidably inserted into the fixed rail, and the rebound buffering device comprises:

[0007] A main support is fixedly arranged on the fixed rail, the main support is parallel to the sliding direction of the slide rail, and a sliding groove is arranged in the main support;

[0008] A sliding bar and a sliding block are slidably arranged in the sliding groove;

[0009] A first spring is arranged between the sliding bar and the sliding block, so that the sliding bar has a tendency to slide in the direction of pulling out of the sliding rail, and the sliding block has a tendency to slide in the direction of pulling out of the sliding rail;

[0010] An automatic extension oil cylinder is arranged on the main support, and the movable end of the automatic extension oil cylinder is movably connected with the sliding block, so that the sliding block has a pushing force in the direction of pulling out of the sliding rail;

[0011] A first swing hook is swingingly connected to one end of the sliding bar;

[0012] A second swing hook is swingingly connected to one end of the sliding block, and a slot is arranged on the second swing hook;

[0013] A push bar is fixedly arranged on the sliding rail, and the push bar comprises a first push bar and a second push bar, the first push bar is connected with the first swing hook, and the second push bar is connected with the second swing hook.

[0014] Further comprising a convex position arranged on the main support close to one end of the direction of pulling out of the sliding rail, when the sliding block slides to one end of the sliding groove close to the direction of pulling out of the sliding rail, the other end of the second swing hook swings and hooks the convex position, so that the sliding block cannot slide in the direction of closing the sliding rail.

[0015] Further comprising a telescopic block, the telescopic block is slidably arranged in the inner side end of the sliding groove away from the direction of pulling out of the sliding rail, a second spring is arranged between one end of the telescopic block and the main support, the second spring makes the telescopic block have a tendency to pull out of the sliding rail, and the other end of the telescopic block is towards the sliding bar and in contact with the sliding bar.

[0016] Further comprising a concave position fixedly arranged on the main support, the inner side of the concave position is provided with a slope, when the first swing hook falling into the concave position continues to move away from the direction of pulling out of the sliding rail, the first swing hook is guided to rise by the slope and then disengages from the concave position; when the sliding bar moves to one end of the sliding groove away from the direction of pulling out of the sliding rail, the other end of the first swing hook swings and is clamped into the concave position, so that the sliding bar cannot slide in the direction of pulling out of the sliding rail.

[0017] The main support is provided with a first recess for accommodating the automatic extension oil cylinder.

[0018] The sliding bar is provided with a second recess for accommodating the first spring.

[0019] The first and second strips are arranged on the sliding rail from inside to outside, the first strip only contacts the first swing hook, and the second strip only contacts the second swing hook during the sliding of the sliding rail.

[0020] The interval of the first and second strips is greater than the minimum interval of the first and second swing hooks.

[0021] When the second strip moves in the direction of being pulled out of the sliding rail and passes the second swing hook, the second strip is inserted into the insertion slot to swing the second swing hook to be separated from the convex position and synchronously move with the second strip, when the second strip moves in the direction of being pulled out of the sliding rail and moves the second swing hook to pass the convex position, the second swing hook swings to hook the convex position, and the insertion slot swings to be inclined to allow the second strip to move out of the insertion slot.

[0022] The first swing hook comprises first, second and third stoppers, the first stopper contacts the first strip, the second stopper contacts the recess, and the third stopper contacts the sliding strip, and a channel is formed between the first, second and third stoppers for the first strip to pass through.

[0023] The present application has the following beneficial effects:

[0024] After the first swing hook enters the recess, the sliding strip is self-locked and cannot be pulled out, and the sliding rail is linked with the second swing hook through the second strip, that is, the sliding rail and the sliding block synchronously move, the first spring is arranged to make the sliding block elastically adhere to the sliding strip, that is, the sliding rail elastically adheres to the deep part of the drawer, so that the drawer is self-locked;

[0025] The drawer is pressed to make the sliding rail move to the deep part of the drawer, that is, the second swing hook, the sliding block, the sliding strip and the first swing hook are linked and move to the deep part of the drawer by 2-3 mm, at this time, the first swing hook overcomes the elastic resistance of the telescopic block, the first swing hook swings along the inclined surface in the recess to rise and then separates from the recess, the elastic force of the first spring makes the sliding strip pop out in the direction of being pulled out of the drawer, the sliding block, the second swing hook and the sliding rail are linked and pop out in the direction of being pulled out of the drawer, so that the drawer is pressed and unlocked to pop out;

[0026] The automatic extension oil cylinder is arranged, so that when the first spring links the sliding block and the sliding rail to move to the deep part of the drawer, the automatic extension oil cylinder needs to be overcome to move slowly, so that the buffering effect when the drawer is closed is realized.

[0027] Since the first sliding block is separately arranged and only connected through the spring, when the drawer is pulled out with force after the sliding rail is self-locked, the sliding rail overcomes the resistance of the first spring, the linkage sliding block moves until the sliding rail and the sliding block are separated, so that the rebound buffer device will not be damaged due to excessive pulling force, and the durability is ensured;

[0028] By arranging the telescopic block, the pressing elastic force is larger, and the stroke between the sliding rail and the end of the sliding groove for unlocking movement is ensured after the sliding rail is locked;

[0029] The present application has the advantages of compact structure, simple and convenient operation, automatic rebound when the drawer is opened, automatic locking when the drawer is closed, avoidance of opening of the drawer under non-control, buffer function, avoidance of noise caused by impact between the sliding rail and the limiting part, and improvement of operation quality. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic view of the rebound buffer device of the embodiment one of the present application;

[0031] Figure 2 is the overall structure schematic view of the rebound buffer device of the embodiment one of the present application;

[0032] Figure 3 is the structure schematic view of the rebound buffer device of the embodiment one of the present application applied to a three-fold sliding rail;

[0033] Figure 4 is the structure schematic view of the main support of the embodiment one of the present application;

[0034] Figure 5 is the structure schematic view of the sliding rail and the first swing hook of the embodiment one of the present application;

[0035] Figure 6 is the structure schematic view of the sliding rail and the first swing hook of the embodiment one of the present application;

[0036] Figure 7 is the structure schematic view of the sliding block and the second swing hook of the embodiment one of the present application;

[0037] Figure 8 is the structure schematic view of the telescopic block and the second spring of the embodiment one of the present application;

[0038] Figure 9 is the structure schematic view of the rebound buffer device of the embodiment two of the present application applied to a two-fold sliding rail;

[0039] Figure 10 is the structure schematic view of the rebound buffer device of the embodiment three of the present application applied to a side-mounted sliding rail;

[0040] In the figure: 1, main support, 1a, sliding groove, 1b, convex position, 1c, concave position, 1d, first groove, 2, sliding bar, 2a, second groove, 3, sliding block, 4, first spring, 5, automatic extension oil cylinder, 6, first swing hook, 6a, first stop block, 6b, second stop block, 6c, third stop block, 7, second swing hook, 7a, insertion slot, 8, push bar, 8a, first push bar, 8b, second push bar, 9, telescopic block, 10, second spring. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.

[0042] Example one:

[0043] A hidden slide rail with a rebound buffer device, the hidden slide rail comprising a fixed rail fixedly arranged and a sliding rail slidably inserted into the fixed rail, the sliding rail comprising a middle rail and an inner rail, the rebound buffer device comprising:

[0044] A main support 1, the main support 1 being fixedly arranged on the fixed rail, the main support 1 being parallel to the sliding direction of the sliding rail, and the main support 1 being provided with a sliding groove 1a;

[0045] A sliding bar 2 and a sliding block 3, the sliding bar 2 and the sliding block 3 being slidably arranged in the sliding groove 1a;

[0046] A first spring 4, the first spring 4 being arranged between the sliding bar 2 and the sliding block 3, so that the sliding bar 2 has an elastic tendency to slide in a direction of being drawn out of the sliding rail, and the sliding block 3 has an elastic tendency to slide in a direction of being drawn out of the sliding rail;

[0047] An automatic extension oil cylinder 5, a fixed end of the automatic extension oil cylinder 5 being arranged on the main support 1, and a movable end of the automatic extension oil cylinder 5 being movably connected with the sliding block 3, so that the sliding block 3 has a pushing force to slide in a direction of being drawn out of the sliding rail;

[0048] A first swing hook 6, one end of the first swing hook 6 being swingably connected with the sliding bar 2;

[0049] A second swing hook 7, one end of the second swing hook 7 being swingably connected with the sliding block 3, and the second swing hook 7 being provided with an insertion slot 7a;

[0050] A push bar 8, the push bar 8 being fixedly arranged on the inner rail, the push bar 8 comprising a first push bar 8a and a second push bar 8b, the first push bar 8a being linked with the first swing hook 6, and the second push bar 8b being linked with the second swing hook 7.

[0051] The convex position 1b is arranged on the main support 1 near the end of the sliding groove 1a in the direction of the sliding rail extraction. When the sliding block 3 slides to the end of the sliding groove 1a in the direction of the sliding rail extraction, the other end of the second swing hook 7 swings and hooks the convex position 1b, so that the sliding block 3 cannot slide in the direction of the sliding rail closing.

[0052] The telescopic block 9 is arranged in the sliding groove 1a away from the end of the sliding rail extraction. The other end of the telescopic block 9 is arranged in contact with the sliding bar 2.

[0053] The concave position 1c is fixedly arranged on the main support 1. The inner side of the concave position 1c is provided with an inclined surface. When the first swing hook 6 falls into the concave position 1c and continues to move away from the direction of the sliding rail extraction, the first swing hook 6 is guided to rise by the inclined surface and then disengages from the concave position 1c. When the sliding bar 2 moves to the end of the sliding groove 1a away from the direction of the sliding rail extraction, the other end of the first swing hook 6 swings and is inserted into the concave position 1c, so that the sliding bar 2 cannot slide in the direction of the sliding rail extraction.

[0054] The first recess 1d is arranged on the main support 1 to accommodate the automatic extension oil cylinder 5.

[0055] The second recess 2a is arranged on the sliding bar 2 to accommodate the first spring 4.

[0056] The push bar 8 includes a first push bar 8a and a second push bar 8b. The first and second push bars 8a and 8b are arranged on the inner rail from inside to outside. During the sliding process of the inner rail, the first push bar 8a only contacts the first swing hook 6, and the second push bar 8b only contacts the second swing hook 7. When the first push bar 8a moves away from the direction of the sliding rail extraction, the first push bar 8a pushes the first swing hook 6 to move until the first swing hook 6 is inserted into the concave position 1c.

[0057] The distance between the first and second push bars 8a and 8b is greater than the minimum distance between the first and second swing hooks 6 and 7.

[0058] When the second push bar 8b moves away from the direction of the sliding rail extraction and passes the second swing hook 7, the second push bar 8b is inserted into the insertion slot 7a to swing the second swing hook 7 to disengage from the convex position 1b and move synchronously with the second push bar 8b. When the second push bar 8b moves in the direction of the sliding rail extraction and the second swing hook 7 moves to pass the convex position 1b, the second swing hook 7 swings to hook the convex position 1b, and the insertion slot 7a swings to tilt to allow the second push bar 8b to move away from the insertion slot 7a.

[0059] The first swing hook 6 comprises first, second and third blocks 6a, 6b and 6c, the first block 6a is in contact with the first push bar 8a, the second block 6b is in contact with the concave position 1c, and the third block 6c is in contact with the sliding bar 2, and a channel is formed between the first, second and third blocks 6a, 6b and 6c for the first push bar 8a to pass through.

[0060] The process of rebound, buffering and self-locking of the slide rail is realized.

[0061] When the drawer is in the open state, the second swing hook 7 is clamped at the convex position 1b, the drawer is closed, the outer rail and the middle rail slide inward, the first push bar 8a first contacts the third block 6c of the first swing hook 6 and pushes the first swing hook 7 and the sliding bar 2 to slide inward, then the second push bar 8b falls into the slot 7a of the second swing hook 7 and pushes the first swing hook 6 to continue to slide inward, then the second push bar 8b pushes the second swing hook 7 to disengage from the convex position 1b, the sliding block 3 approaches the sliding bar 2, the first spring 4 gradually retracts from the stretched state to generate elastic force to drive the sliding block 3 to slide to the sliding bar 2, the outer rail slides inward in linkage, and the resistance generated by the compression of the automatic extension oil cylinder 5 needs to be overcome, until the first swing hook 6 completely falls into the concave position 1c, so that the process of closing the drawer by the first spring 4 is slow and uniform, self-locking is realized, and the drawer is in the closed state.

[0062] When the drawer is in the closed state, the drawer can be pressed to unlock and rebound out of the drawer, the drawer is continuously pressed to slide inward, the second push bar 8b pushes the second swing hook 7 and the sliding block 3 connected thereto, drives the first swing hook 6, the sliding bar 2 and the telescopic block 9 to slide inward, the resistance generated by the compression of the automatic extension oil cylinder 5 needs to be overcome, the first swing hook 6 rises along the inclined surface of the concave position 1c, and the self-locking is released; then the elastic force generated by the first spring 4 and the thrust generated by the extension of the automatic extension oil cylinder 5 drive the sliding bar 2 and the sliding block 3 to slide outward to the drawer, the second swing hook 7 slides outward in linkage, the slot 7a of the second swing hook 7 clamps the second push bar 8b, the outer rail slides outward in linkage, until the sliding block 3 cannot continue to slide to the end of the sliding groove 1a, the second swing hook 7 is clamped at the convex position 1b, the second swing hook 7 swings to a position suitable for the transverse movement of the second push bar 8b, at this time, the second push bar 8b is separated from the slot 7a and slides outward with the sliding rail, the first push bar 8a slides outward along the channel of the first swing hook 6, and the drawer is completely opened.

[0063] Even when the drawer is closed, it can be pulled out directly without damaging the mechanism, overcoming the spring force. When the drawer is pulled out, the sliding rail moves outward, and the first hook 6 remains in the recess 1c. The first lever 8a will not contact the first hook 6 when it passes its position. The sliding bar 2 and the first hook 6 remain in their original positions. The second lever 8b pushes the second hook 7, and at the same time, the second hook 7 moves outward in conjunction with the sliding block 3. The automatic extension cylinder 5 extends to generate thrust, pushing the sliding block 3 and the second hook 7 outward. At the same time, it needs to overcome the spring force generated by the stretching of the first spring 4 until the second hook 7 swings and locks the protrusion 1b. The second hook 7 swings to a position suitable for the second lever 8b to move away laterally. At this time, the second lever 8b disengages from the slot 7a and continues to slide outward with the sliding rail, and the drawer is fully opened.

[0064] With the drawer open and the first hook 6 still in the recess 1c, closing the drawer causes the sliding rail to slide inward. The second lever 8b first contacts the second hook 7 and engages in the slot 7a of the second hook 7, or directly engages in the groove through the inclined surface on the second hook 7. This pushes the second hook 7 into the drawer and causes the sliding block 3 to slide inward. Subsequently, the second hook 7 disengages from the protrusion 1b, and the first spring 4 retracts, generating elastic force that drives the sliding block 3 to slide towards the sliding bar 2. This force counteracts the resistance generated by the automatic extension cylinder 5, providing a buffering effect until the sliding block 3 contacts the sliding bar 2 and stops sliding inward. The drawer then closes slowly.

[0065] Example 2:

[0066] like Figure 9 As shown, the rebound buffer device in this embodiment has the same main structure as in embodiment one, except that it is applied to a two-fold concealed slide rail. The two-fold concealed slide rail includes a fixed rail that is fixedly installed and a sliding rail that is slidably inserted into the fixed rail. That is, the fixed rail is the outer rail and the sliding rail is the inner rail. The inner rail is located on the outside of the drawer, and the lever 8 is located on the inner rail.

[0067] Example 3:

[0068] like Figure 10 As shown, the main structure of the rebound buffer device in this embodiment is the same as that in Embodiment 1, except that it is applied to a two-fold side-mounted slide rail. The rebound buffer device is vertically installed on the outer rail. The two-fold side-mounted slide rail includes a fixed rail that is fixedly set and a sliding rail that is slidably inserted into the fixed rail. That is, the fixed rail is the outer rail and the sliding rail is the inner rail. The outer rail is set below the drawer, the lever 8 is set on the inner rail, and the rebound buffer device is vertically installed on the inner rail.

[0069] 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 concealed slide rail with a rebound buffer device, the concealed slide rail comprising a fixed rail fixedly disposed thereon and a slide rail slidably inserted into the fixed rail, characterized in that, The rebound buffer device includes: Main support (1), the main support (1) is fixedly mounted on the fixed rail, the main support (1) is parallel to the sliding direction of the sliding rail, and a sliding groove (1a) is provided inside the main support (1). A sliding bar (2) and a sliding block (3) are slidably disposed within the groove (1a); The first spring (4) is disposed between the sliding bar (2) and the sliding block (3), so that the sliding bar (2) has an elastic tendency to slide in the direction of being pulled out of the sliding rail, and the sliding block (3) has an elastic tendency to slide away from the sliding rail. An automatic extension cylinder (5) is provided with its fixed end on the main support (1) and its movable end connected to the sliding block (3), so that the sliding block (3) has a thrust that slides in the direction of the sliding rail. The first swing hook (6) has one end swingingly connected to the sliding bar (2); The second swing hook (7) has one end swingingly connected to the sliding block (3), and the second swing hook (7) is provided with a slot (7a). A lever (8) is fixedly mounted on the sliding rail. The lever (8) includes a first lever (8a) and a second lever (8b). The first lever (8a) is linked with the first swing hook (6), and the second lever (8b) is linked with the second swing hook (7). A protrusion (1b) and a recess (1c) are provided on the main support (1) at one end near the direction of the sliding rail being pulled out, and the recess (1c) is fixedly provided on the main support (1). The first swing hook (6) includes a first, second, and third stop blocks (6a, 6b, 6c). The first stop block contacts the first lever (8a), the second stop block contacts the recess (1c), and the third stop block contacts the sliding bar (2). A channel is formed between the first, second, and third stop blocks (6a, 6b, 6c) for the first lever (8a) to pass through.

2. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, When the sliding block (3) slides to one end of the groove (1a) near the direction of the sliding rail being pulled out, the other end of the second hook (7) swings and hooks the protrusion (1b), preventing the sliding block (3) from sliding in the direction of the sliding rail being closed.

3. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, It also includes a telescopic block (9), which is slidably disposed on the inner end of the slide groove (1a) away from the direction of the slide rail being pulled out. A second spring (10) is provided between one end of the telescopic block (9) and the main support (1). The second spring (10) gives the telescopic block (9) an elastic tendency to be pulled out in the direction of the slide rail. The other end of the telescopic block (9) faces the slide bar (2) and is in contact with the slide bar (2).

4. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, An inclined surface is provided on the inner side of the recess (1c). When the first swing hook (6) that has fallen into the recess (1c) continues to move away from the direction of the slide rail, it is guided by the inclined surface to rise and thus leave the recess (1c). When the sliding bar (2) moves to one end of the slide groove (1a) away from the direction of the slide rail, the other end of the first swing hook (6) swings and gets stuck in the recess (1c), so that the sliding bar (2) cannot slide in the direction of the slide rail.

5. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, The main support (1) is provided with a first groove (1d) for accommodating the automatic extension cylinder (5).

6. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, The sliding bar (2) is provided with a second groove (2a) to accommodate the first spring (4).

7. A concealed slide rail with a rebound buffer device according to claim 1, characterized in that, The first and second levers (8a, 8b) are arranged from the inside out on the sliding rail. During the sliding process, the first lever (8a) only contacts the first hook (6), and the second lever (8b) only contacts the second hook (7). When the first lever (8a) moves away from the sliding rail, it pushes the first hook (6) to move until it is engaged in the recess (1c).

8. A concealed slide rail with a rebound buffer device according to claim 7, characterized in that, The distance between the first and second levers (8a, 8b) is greater than the minimum distance between the first and second swing hooks (6, 7).

9. A concealed slide rail with a rebound buffer device according to claim 7, characterized in that, When the second lever (8b) moves away from the sliding rail and passes the second hook (7), the second lever (8b) inserts into the slot (7a) and, in conjunction with the second hook (7), swings away from the protrusion (1b) and moves synchronously with the second lever (8b). When the second lever (8b) moves away from the sliding rail and, in conjunction with the second hook (7), moves past the protrusion (1b), the second hook (7) swings and hooks the protrusion (1b), and the slot (7a) swings and tilts to allow the second lever (8b) to leave the slot (7a) and continue moving.

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