Slide rail assembly

Abstract

The utility model discloses a slide rail assembly which comprises a first rail, a second rail and a buffer device, the buffer device is provided with a base, a sliding piece and at least one movable piece, the base is connected with the sliding piece in a sleeved mode, the base and the at least one movable piece are respectively installed at one end of the first rail, and at least one side between the two ends of the sliding piece is provided with a plurality of guiding features. A displacement part is arranged between the base and the sliding part, when the second rail moves relative to the first rail in a folding mode, the second rail abuts against the sliding part to enable the sliding part to move, the sliding part drives the displacement part to be compressed, the sliding part and the base are in a folding state, and the displacement of the second rail is slowed down through a plurality of guiding characteristics which abut against at least one movable part through thrust of the displacement part. When the second rail is unfolded and displaced relative to the first rail, the sliding piece and the base are converted into an unfolded state from a folded state, the displacement piece stretches to drive the sliding piece, and the second rail is separated from the sliding piece.

Description

Technical Field

[0001] This utility model relates to a slide rail assembly, particularly to a cabinet and chassis adapted to an industrial server, which uses a buffer device to reduce the displacement of one slide rail relative to another during the retraction and displacement process. Background Technology

[0002] In existing industrial server racks and chassis, one slide rail of the slide rail assembly is mounted on the chassis, and the other slide rail is mounted on the rack. During the retraction and displacement of the slide rail relative to the other slide rail, a buffering device, such as a hydraulic rod, provides a deceleration travel before the slide rail reaches its final travel point. However, this deceleration also results in a deceleration travel when the slide rail extends relative to the other slide rail. This can cause users to apply excessive force to the chassis on the slide rail, leading to the slide rail detaching from the other slide rail and the chassis falling out of the rack. Therefore, how to solve the problem of the deceleration travel during the extension of the slide rail relative to the other slide rail is a direction that industry professionals urgently need to research and improve.

[0003] However, the components of buffer devices are often installed separately on different slide rails, other slide rails, or brackets. For example, buffer devices consisting of damping gears and racks are installed on different slide rails and brackets, resulting in low installation efficiency and difficulty in maintenance and replacement. Therefore, how to solve the problems of low installation efficiency and difficulty in maintenance and replacement is a direction that relevant operators in this industry urgently need to research and improve. Summary of the Invention

[0004] This utility model relates to a slide rail assembly, comprising: a first rail and a second rail that are displaceable relative to the first rail; a buffer device having a base, a slide member, and at least one movable member, wherein the base and the slide member are sleeved together, the base and the at least one movable member are respectively installed at one end of the first rail, and the slide member has a plurality of guiding features on at least one side between its two ends; a displacement member is provided between the base and the slide member; wherein, when the second rail displaces relative to the first rail in a first direction, the second rail abuts against the slide member, causing the slide member to displace, and the slide member drives the displacement member to compress, the slide member and the base are in a retracted state, and the displacement member's thrust and the at least one movable member abut against the plurality of guiding features, thereby decelerating the displacement of the second rail.

[0005] Preferably, the second rail is displaced relative to the first rail in a second direction opposite to the first direction, and the displacement member extends, so that the slider and the base are in an unfolded state, and the second rail is disengaged from the slider.

[0006] Preferably, the at least one moving element is a damping gear, and the plurality of guiding features are teeth, with the at least one set of damping gears meshing with the plurality of teeth.

[0007] Preferably, the displacement element is one of a spring, a hydraulic rod, or a pneumatic rod.

[0008] Preferably, the base has at least one fixing part extending outward on at least one side, and the base has a first end and a second end at both ends, respectively. The first end has a first fixing hole, and the second end has a second fixing hole. The first fixing hole and the at least one fixing part are respectively installed on the first rail, and the base has a receiving groove recessed from the second end toward the first end for the front end of the displacement member to be disposed.

[0009] Preferably, the first track has a longitudinal wall, which extends inward from the outer side and bends into a bend. The slider of the buffer device has a third end and a fourth end on each side. The third end and the fourth end bend toward the longitudinal wall and extend into a support. The bends of the third end and the fourth end, which are respectively connected to the supports, are respectively recessed into a support portion. Each support portion abuts against the bend portion. A slot is formed between the third end and the fourth end. Below the slot, there is an elastic space for the rear end of the displacement member to be disposed.

[0010] Preferably, the third end extends toward the fourth end and has a first joint portion located below the hollow groove, and the receiving groove of the base has a second joint portion corresponding to the first joint portion, and the front end of the displacement member of the buffer device is disposed at the second joint portion, and the rear end of the displacement member is disposed at the first joint portion, so as to allow the displacement member to be compressed and extended in the receiving groove and the elastic space.

[0011] Preferably, the buffer device further includes a locking element that passes through the slot and is then installed on the base. Attached Figure Description

[0012] Figure 1 This is a perspective view of the slide rail assembly of this utility model.

[0013] Figure 2 This is a schematic diagram of the slide rail assembly of this utility model.

[0014] Figure 3 This is a schematic diagram of the buffer device of this utility model.

[0015] Figure 4 This is another schematic diagram of the buffer device of this utility model.

[0016] Figure 5 This is a schematic diagram of the retracted state of the buffer device of this utility model.

[0017] Figure 6 This is a schematic diagram illustrating the operation of the buffer device of this utility model.

[0018] Figure 7 This is a schematic diagram of the buffer device of this utility model in its unfolded state.

[0019] Figure 8 This is a cross-sectional schematic diagram of the buffer device of this utility model in its unfolded state.

[0020] Figure 9 This is a schematic diagram of the slide rail assembly of this utility model being folded up.

[0021] Figure 10 This is a schematic diagram showing the unfolded slide rail assembly of this utility model.

[0022] In the figure, the reference numerals include:

[0023] 1: Slide rail assembly

[0024] 11: Track 1

[0025] 111: One end

[0026] 112: Longitudinal wall

[0027] 113: Bend

[0028] 12: Track 2

[0029] 13: Track 3

[0030] 14: Buffer device

[0031] 141: Base

[0032] 1411: Fixing part

[0033] 1412: First fixing hole; 1413: Second fixing hole; 1414: Receiving groove

[0034] 14141: Second joint; 1415: First end.

[0035] 1416: Second end

[0036] 142: Slider

[0037] 1420: Flexible Space

[0038] 1421: Guiding Features

[0039] 1422: Third end

[0040] 1423: Fourth end

[0041] 1424: Hollowed-out groove

[0042] 14241: Front end of the hollowed-out groove; 14242: Rear end of the hollowed-out groove; 1425: Support body

[0043] 14251: Support section

[0044] 1426: First group of connectors 143: Moving parts

[0045] 144: Displacement component

[0046] 1441: Frontend

[0047] 1442: Backend 145: Locking component

[0048] D1: First Direction

[0049] D2: Second Direction Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0051] Example

[0052] Please see Figure 1 and Figure 2 As shown, the present invention is a slide rail assembly 1, comprising: a first rail 11, a second rail 12, a third rail 13 and a buffer device 14. The first rail 11 has a longitudinal wall 112, and the longitudinal wall 112 extends inward relative to the outer side and bends into a bent portion 113. The second rail 12 is displaceable relative to the first rail 11. A third rail 13 is movably installed between the second rail 12 and the first rail 11. The third rail 13 is used to extend the displacement length of the second rail 12 relative to the first rail 11. The structure, displacement, unfolding and retraction of the first rail 11, the second rail 12 and the third rail 13 are already known technologies, and will not be described in detail here for the sake of simplicity.

[0053] Please see Figure 2 and Figure 4As shown, the buffer device 14 includes a base 141, a slider 142, at least one movable member 143, a displacement member 144, and a locking member 145. The base 141 and the slider 142 are sleeved together. The base 141 and the at least one movable member 143 are respectively installed on one end 111 of the first rail 11. The base 141 has at least one fixed part 1411 extending outward from at least one side, and the base 141 has a first end 1415 and a second end 1416. The first end 1415 has a first fixing hole 1412, and the second end 1416 has a first fixing hole 1412. A second fixing hole 1413 is provided at end 1416. The first fixing hole 1412 and the at least one fixing part 1411 are respectively installed on the first rail 11. The displacement member 144 is provided between the base 141 and the slider 142. The base 141 is recessed from the second end 1416 toward the first end 1415 with a receiving groove 1414 for the front end 1441 of the displacement member 144. The slider 142 has a third end 1422 and a fourth end 1423 on each side. The third end 1422 and the fourth end 1423 are connected. A perforated groove 1424 is provided, and below the perforated groove 1424 is an elastic space 1420 for the rear end 1442 of the displacement member 144. The locking member 145 passes through the perforated groove 1424 and is then installed in the second fixing hole 1413 of the base 141. A plurality of guide features 1421 are provided on the outer sides of the third end 1422 and the fourth end 1423. The third end 1422 and the fourth end 1423 are respectively bent and extended toward the longitudinal wall 112 to form a support body 1425. A support portion 14251 is recessed at the bend of the part 1423 connecting each support body 1425. The third end 1422 extends toward the fourth end 1423 and has a first joint portion 1426 located below the hollow groove 1424. The receiving groove 1414 of the base 141 has a second joint portion 14141 corresponding to the first joint portion 1426. The front end 1441 of the displacement member 144 of the buffer device 14 is disposed in the second joint portion 14141, and the rear end 1442 of the displacement member 144 is disposed in the first joint portion 1426.

[0054] This invention is described using two movable parts 143 as an example. The number of movable parts 143 may be one, three, four or five. This example is not intended to limit the scope of the patent of this invention.

[0055] The present invention uses the displacement element 144 as a spring, hydraulic rod, pneumatic rod, or other element that can be reset after being compressed. The present invention is illustrated with a spring (compression spring) as an example, and the example is not intended to limit the patent scope of the present invention.

[0056] The present invention is illustrated by the following: the slider 142 has a plurality of guide features 1421 on the outer sides between its two ends; the at least one movable member 143 is a damping gear; the plurality of guide features 1421 are teeth; the at least one damping gear meshes with the plurality of teeth; and the locking member 145 is a rivet. This is merely an example for illustration. However, the plurality of guide features 1421 may be provided on at least one side between the two ends of the slider 142, and the locking member 145 may be a rivet of equal height, a bolt, or other element with equal height locking. The example is not intended to limit the patent scope of the present invention.

[0057] Please see Figure 5 and Figure 10 As shown, during retraction, the second rail 12 moves relative to the first rail 11 in a first direction D1 until the end of its travel. The second rail 12 then abuts against the third end 1422 of the slider 142, causing the second rail 12 and the slider 142 to move synchronously in the first direction D1. At least one movable member 143 abuts against the plurality of guide features 1421. The slider 142 compresses the displacement member 144, with the first connecting portion 1426 of the slider 142 pressing against the rear end 1442 of the displacement member 144, and the second connecting portion 14141 of the slider 142 pressing against the front end 1441 of the displacement member 144. The third end 1422 and the fourth end 1423 are connected to the support portion 14251 of each support body 1425, which abuts against the bent portion 113 of the first rail 11, so that the displacement member 144 is compressed between the elastic space 1420 and the receiving groove 1414. At this time, the locking member 145 abuts against the front end 14241 of the hollow groove towards the rear end 14242 of the hollow groove, so that the sliding member 142 and the base 141 are in a retracted state. The thrust of the displacement member 144 and the at least one movable member 143 abut against the plurality of guide features 1421 to decelerate the displacement of the second rail 12 relative to the first rail 11 in a first direction D1.

[0058] Continuing from the above, when unfolding, as the second rail 12 moves relative to the first rail 11 in a second direction D2 opposite to the first direction D1, the slider 142 and the base 141 change from the retracted state to an unfolded state. The second rail 12 disengages from the third end 1422 of the slider 142, and the displacement member 144 extends, causing the slider 142 to move in the second direction D2. The rear end 1442 of the displacement member 144 pushes against the first joint portion 1426 of the slider 142, and the front end 1441 of the displacement member 144 pushes against the second joint portion 14141 of the slider 142, so that the displacement member 144 extends between the elastic space 1420 and the receiving groove 1414. At this time, the locking member 145 abuts against the front end 14241 of the hollow groove from the rear end 14242 of the hollow groove.

[0059] In view of this, the buffer device 14 disclosed in this invention has a base 141, a slider 142, and at least one movable member 143. The base 141 and the slider 142 are sleeved together. The base 141 and the at least one movable member 143 are respectively installed at one end 111 of the first rail 11. The slider 142 has a plurality of guide features 1421 on at least one side between its two ends. A displacement member 144 is disposed between the base 141 and the slider 142. By means of a thrust of the displacement member 144... The at least one movable member 143 abuts against the plurality of guide features 1421, causing the second rail 12 to retract and displace relative to the first rail 11 until the end of its travel. Before the end of its travel, the second rail 12 abuts against the slider 142 of the buffer device 14, achieving a buffering effect by decelerating the displacement in one direction to the end of its travel. In addition, by installing the buffer device 14 at one end 111 of the first rail 11, the modular design of the buffer device 14 allows the components that form the buffering effect to be concentrated in one place, improving installation efficiency and ease of maintenance and replacement.

Claims

1. A slide rail assembly, characterized in that, Include: A first rail (11) and a second rail (12) are displaceable relative to the first rail (11); and A buffer device (14) has a base (141), a slider (142) and at least one movable member (143). The base (141) and the slider (142) are sleeved together. The base (141) and the at least one movable member (143) are respectively installed at one end (111) of the first rail (11). The slider (142) has a plurality of guiding features (1421) on at least one side between the two ends. A displacement member (144) is provided between the base (141) and the slider (142). When the second rail (12) moves relative to the first rail (11) in a first direction (D1), the second rail (12) abuts against the slider (142) to move, and the slider (142) drives the displacement member (144) to compress. The slider (142) and the base (141) are in a closed state. The displacement member (144) pushes against the plurality of guide features (1421) with the at least one movable member (143) to decelerate the displacement of the second rail (12).

2. The slide rail assembly according to claim 1, characterized in that, The second rail (12) is displaced relative to the first rail (11) in a second direction (D2) opposite to the first direction (D1), and the displacement member (144) extends, then the slider (142) and the base (141) are in an unfolded state, and the second rail (12) disengages from the slider (142).

3. The slide rail assembly according to claim 1, characterized in that, The at least one movable element (143) is a damping gear, and the plurality of guiding features (1421) are teeth, the at least one set of damping gears meshing with the plurality of teeth.

4. The slide rail assembly according to claim 1, characterized in that, The displacement element (144) is one of a spring, a hydraulic rod, or a pneumatic rod.

5. The slide rail assembly according to claim 2, characterized in that, The base (141) has at least one fixing part (1411) extending outward from at least one side, and the base (141) has a first end (1415) and a second end (1416) at both ends. The first end (1415) has a first fixing hole (1412), and the second end (1416) has a second fixing hole (1413). The first fixing hole (1412) and the at least one fixing part (1411) are respectively installed on the first rail (11), and the base (141) has a receiving groove (1414) recessed from the second end (1416) toward the first end (1415) for the front end (1441) of the displacement member (144).

6. The slide rail assembly according to claim 5, characterized in that, The first track (11) has a longitudinal wall (112), the longitudinal wall (112) extending inward from the outer side with a bend (113), and the slider (142) of the buffer device (14) has a third end (1422) and a fourth end (1423) on each side, and the third end (1422) and the fourth end (1423) extend towards the longitudinal wall (112) with a support (1425), the third end (1422) and the fourth end (1423) extending inward from the longitudinal wall (112) with a bend (113). 2) A support portion (14251) is recessed at the bend of each support body (1425) connected to the fourth end (1423). Each support portion (14251) abuts against the bend portion (113). A hollow groove (1424) is opened between the third end (1422) and the fourth end (1423). An elastic space (1420) is provided below the hollow groove (1424) for the rear end (1442) of the displacement member (144).

7. The slide rail assembly according to claim 6, characterized in that, The third end (1422) extends toward the fourth end (1423) and has a first connecting portion (1426) located below the hollow groove (1424). The receiving groove (1414) of the base (141) has a second connecting portion (14141) corresponding to the first connecting portion (1426). The front end (1441) of the displacement member (144) of the buffer device (14) is disposed in the second connecting portion (14141), and the rear end (1442) of the displacement member (144) is disposed in the first connecting portion (1426) for the displacement member (144) to be compressed and extended in the receiving groove (1414) and the elastic space (1420).

8. The slide rail assembly according to claim 7, characterized in that, The buffer device (14) further includes a locking member (145) that passes through the hollowed-out groove (1424) and is then installed on the base (141).

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