Slide rail device

Abstract

A sliding rail device is suitable for being connected with a server case, and the server case is provided with a joint piece. The sliding rail device comprises a middle rail unit and an inner rail unit. The middle rail unit comprises a middle rail and a stop reset piece arranged on the middle rail. The inner rail unit comprises an inner rail movably arranged on the middle rail, a locking piece arranged on the inner rail and an unlocking piece arranged on the inner rail and connected with the locking piece. The inner rail is provided with an inner middle face facing the middle rail, a first end, a second end and a locking groove. The locking groove is used for the joint piece to stretch in, and the locking piece can abut against the joint piece in a clamping mode so as to prevent the joint piece from being disengaged from the locking groove. The unlocking piece can be operated to move towards the second end and push the locking piece to be away from the inner middle face so as to relieve the clamping and abutting relation between the locking piece and the joint piece. When the inner rail unit moves towards the direction of the second end relative to the middle rail, the blocking reset piece can abut against the unlocking piece and push the unlocking piece to move towards the first end to reset.

Description

Technical Field

[0001] The utility model relates to a slide rail device, in particular to a slide rail device with a safety resetting function. Background Art

[0002] The existing mounting hole unlocking structure is installed on the slide rail device through an elastic member. When the user wants to install the server chassis on the slide rail, the T-pin of the chassis can be stuck on the slide rail through the elastic force, and the chassis can be removed by manually moving the elastic member. At this time, the user's hands are easily scratched, causing inconvenience in use. Moreover, after the unlocking structure is unlocked, if it is not manually reset, the server chassis cannot be firmly reinstalled on the slide rail, and there is a risk of falling and causing damage to other server chassis or causing pressure injuries to users. Therefore, there is still room for improvement. Utility Model Content

[0003] The purpose of the present utility model is to provide a slide rail device which can solve at least one of the above problems.

[0004] The utility model discloses a slide rail device suitable for connecting a server chassis, the server chassis has a joint piece, the slide rail device comprises a middle rail unit, including a middle rail and a stopping and resetting piece arranged on the middle rail; and an inner rail unit, including an inner rail movably arranged on the middle rail, a locking piece arranged on the inner rail, and an unlocking piece arranged on the inner rail and connected to the locking piece, the inner rail has an inner middle surface facing the middle rail, a first end, a second end opposite to the first end, and a locking groove, the locking groove is for the joint piece to extend into, the locking piece can be clamped against the joint piece to prevent the joint piece from being separated from the locking groove, the unlocking piece can be operated to move toward the second end and push the locking piece away from the inner middle surface to release the clamping relationship between the locking piece and the joint piece, and when the inner rail unit moves relative to the middle rail in the direction of the second end, the stopping and resetting piece can abut against the unlocking piece and push the unlocking piece to move toward the first end to reset.

[0005] In some embodiments, the middle rail has a middle inner surface facing the inner rail, a middle outer surface opposite to the middle inner surface, and a through slot connecting the middle inner surface and the middle outer surface, and the stopping and resetting member has a flat plate mounting portion disposed on the middle outer surface and a stopping and resetting portion bent from the flat plate mounting portion, extending toward the inner rail and passing through the through slot.

[0006] In some implementations, the locking member has a mounting portion disposed on the inner middle surface and a latching portion connected to the mounting portion and capable of latching against the engaging member, and the latching portion has a latching hole for the engaging member to extend into.

[0007] In some embodiments, the inner rail has two unlocking slots, the locking slot is closer to the first end relative to the unlocking slots, the unlocking member has an operating portion capable of abutting against the stopping and resetting portion, two covering portions connecting both ends of the operating portion, and two abutting portions respectively protruding from the covering portions toward the inner middle surface. The operating portion and the covering portions jointly clamp the mounting portion of the locking member. Each of the abutting portions extends into the corresponding unlocking slot and has a clamping inclined surface capable of abutting against the inner rail. The operating portion can be operated to move in a direction away from the first end, so that the clamping inclined surface abuts against the inner rail to drive the unlocking member away from the inner middle surface, and further drive the locking member away from the inner middle surface to release the clamping relationship between the clamping portion and the engaging member.

[0008] In some embodiments, the operating portion forms a clamping slot, and the stopping and resetting portion can extend into the clamping slot.

[0009] In some embodiments, the middle rail forms an inner middle stopping member protruding toward the inner middle surface. The inner rail unit further includes a disengaging operating member group disposed on the inner rail. The disengaging operating member group has a disengaging operating member movably disposed on the inner rail, a disengaging connecting piece connecting the disengaging operating member, and a disengaging stopping member pivotally mounted on the inner rail. The disengaging connecting piece can abut against the disengaging stopping member. The disengaging operating member can be operated to drive the disengaging connecting piece to move, and further push against the disengaging stopping member to pivot, so as to release the stopping relationship between the disengaging stopping member and the inner middle stopping member.

[0010] In some embodiments, the disengaging operating member group further includes a disengaging elastic member disposed between the inner rail and the disengaging operating member.

[0011] In some embodiments, the inner rail further has a disengaging activity slot. The disengaging operating member has a disengaging flat portion, a disengaging activity portion protruding from the disengaging flat portion toward the inner middle surface and extending into the disengaging activity slot, and a disengaging accommodation slot formed between the disengaging flat portion and the disengaging activity portion for accommodating the disengaging elastic member. The disengaging elastic member is partially located in the disengaging activity slot and one end abuts against the inner rail.

[0012] In some embodiments, the inner rail unit further includes a retracting operating member group disposed on the inner rail. The retracting operating member group has a retracting operating member movably disposed on the inner rail, a retracting connecting piece connecting the retracting operating member, and a retracting stopping member pivotally mounted on the inner rail. The retracting connecting piece can abut against the retracting stopping member. The retracting operating member can be operated to drive the retracting connecting piece to move, and further push against the retracting stopping member to pivot, so as to release the stopping relationship between the retracting stopping member and the inner middle stopping member.

[0013] In some embodiments, the retracting operating member group further includes a retracting elastic member disposed between the inner rail and the retracting operating member.

[0014] In some embodiments, the inner rail further has a retraction active slot, the retraction operating member has a retraction flat portion, a retraction active portion protruding from the retraction flat portion toward the inner middle surface and extending into the retraction active slot, and a retraction accommodation slot formed between the retraction flat portion and the retraction active portion for accommodating the retraction elastic member. The retraction elastic member is partially located in the retraction active slot and one end abuts against the inner rail.

[0015] The beneficial effects of the present utility model are as follows: By means of the stop and reset member, it can abut against the unlocking member and push the unlocking member to move toward the first end for resetting, so that the locking member can re-engage with the engaging member, preventing the server chassis from falling off the inner rail unit and causing damage to other server chassis, and also preventing the user from being crushed. It can play a role in preventing mistakes and serve as a safety mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features and effects of the present utility model will be clearly presented in the embodiments with reference to the drawings, wherein:

[0017] Figure 1 is a perspective view of an embodiment of the slide rail device of the present utility model;

[0018] Figure 2 is an exploded perspective view of this embodiment;

[0019] Figure 3 is an incomplete perspective view of a middle rail unit of this embodiment;

[0020] Figure 4 is an incomplete exploded perspective view of the middle rail unit of this embodiment;

[0021] Figure 5 is an incomplete perspective view of an inner rail unit of this embodiment;

[0022] Figure 6 is an incomplete exploded perspective view of the inner rail unit of this embodiment;

[0023] Figure 7 is a side view of an unlocking member of the inner rail unit of this embodiment;

[0024] Figure 8 is a bottom view of the unlocking member of this embodiment;

[0025] Figure 9 is from Figure 5 an incomplete cross-sectional view obtained from the section line IX-IX;

[0026] Figure 10 is similar to Figure 9 an incomplete cross-sectional view, showing the unlocking member driving a locking member to move away from an inner rail;

[0027] Figure 11 is an incomplete front view of the inner rail unit of this embodiment;

[0028] Figure 12 is an incomplete front view of the inner rail unit of this embodiment, showing that the unlocking member drives a locking member to move away from an inner rail;

[0029] Figure 13 is a perspective view of a detachment operating member of a detachment operating member group of the inner rail unit of this embodiment;

[0030] Figure 14 is a perspective view of a retraction operating member of a retraction operating member group of the inner rail unit of this embodiment;

[0031] Figure 15 is a perspective view of this embodiment, showing that the inner rail unit extends relative to the middle rail to an extended position;

[0032] Figure 16 is an incomplete front view of the inner rail unit of this embodiment;

[0033] Figure 17 is an incomplete front view of the inner rail unit of this embodiment, showing that the detachment operating member is pushed to the left, causing the detachment stop member to pivot downward;

[0034] Figure 18 is an incomplete front view of the inner rail unit of this embodiment, showing that the retraction operating member is pushed to the left, causing the retraction stop member to pivot downward;

[0035] Figure 19 is an incomplete front view of the inner rail unit of this embodiment, showing that the unlocking member abuts against a stop and reset member;

[0036] Figure 20 is an incomplete front view of the inner rail unit of this embodiment, showing that the stop and reset member pushes and drives the unlocking member to reset. Detailed implementation manners

[0037] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0038] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0041] Refer to Figure 1 and Figure 2 , in one embodiment of the slide rail device of the present utility model, it is applicable to be arranged in a server cabinet (not shown in the figure) and for a server chassis 20 to be arranged. It should be noted that the positions for the server cabinet to accommodate the server chassis 20 are provided with two slide rail devices, respectively located on both sides of the server chassis 20 to connect and support the server chassis 20. The server chassis 20 has a joint 4. Each slide rail device includes an outer rail 1, a middle rail unit 2 and an inner rail unit 3. The outer rail 1 is fixedly arranged on the server cabinet, and the inner rail unit 3 is connected to one side of the server chassis 20.

[0042] With reference to Figures 3 to 9, the inner rail unit 3 includes an inner rail 31 movably arranged on the middle rail 2, a locking member 32 arranged on the inner rail 31, an unlocking member 33 arranged on the inner rail 31 and connected to the locking member 32, a disengaging operation member group 34 arranged on the inner rail 31, a retracting operation member group 35 arranged on the inner rail 31, and a blocking elastic member 36 arranged between the disengaging operation member group 34 and the retracting operation member group 35. The inner rail 31 has an inner middle surface 311 facing the middle rail 2, an inner outer surface 312 opposite to the inner middle surface 311 and facing the server chassis 20, a first end 313, a second end 314 opposite to the first end 313, a locking groove 315 adjacent to the first end 313, two unlocking grooves 316 adjacent to the locking groove 315, two unlocking inclined surfaces 317 respectively located in the unlocking grooves 316 and connecting the inner middle surface 311, a disengaging activity groove 318, and a retracting activity groove 319. The locking groove 315 is for the engaging member 4 to extend into. The middle rail unit 2 includes a middle rail 21 movably arranged on the outer rail 1 and a blocking and resetting member 22 arranged on the middle rail 21. The middle rail 21 has a middle inner surface 211 facing the inner rail 31, a middle outer surface 212 opposite to the middle inner surface 211, a through groove 214 communicating the middle inner surface 211 and the middle outer surface 212, and a middle inner blocking member 213 protruding towards the inner middle surface 311. The blocking and resetting member 22 has a flat mounting portion 221 arranged on the middle outer surface 212 and a blocking and resetting portion 222 extending from the flat mounting portion 221 and bending towards the inner rail 31 and passing through the through groove 214.

[0043] Refer to Figures 5 to 8 , the locking member 32 is generally in a long strip shape and has a mounting portion 321 arranged on the inner middle surface 311 and a clamping portion 322 connected to the mounting portion 321 and capable of clamping against the engaging member 4. The clamping portion 322 has a clamping hole 322a for the engaging member 4 to extend into, thereby clamping against the engaging member 4 to prevent the engaging member 4 from disengaging from the locking groove 315. The unlocking member 33 has an operating portion 331, two covering portions 332 connected to both ends of the operating portion 331, and two abutting portions 333 respectively protruding from the covering portions 332 towards the inner middle surface 311. The operating portion 331 forms a clamping groove 331a which can be for the blocking and resetting portion 222 (see Figure 3 ) to extend into. The operating portion 331 and the covering portions 332 jointly clamp the mounting portion 321 of the locking member 32. Each of the abutting portions 333 extends into the corresponding unlocking groove 316 and has a clamping inclined surface 333a capable of abutting against the corresponding unlocking inclined surface 317 of the inner rail 31. In this embodiment, the unlocking member 33 is made of plastic material.

[0044] Refer to Figure 1 , Figures 9 to 12, the operating portion 331 of the unlocking member 33 can be operated to move away from the first end 313, so that the card-against inclined surface 333a abuts against the unlocking inclined surface 317 corresponding to the inner rail 31, driving the unlocking member 33 away from the inner middle surface 311, and further driving the locking member 32 away from the inner middle surface 311 to release the card-against relationship between the card-against portion 322 and the engaging member 4. Then, the user can detach the server chassis 20 together with the engaging member 4 from the locking groove 315, and remove the server chassis 20 from the inner rail 31. The above unlocking process can be completed only by pushing the operating portion 331 of the unlocking member 33, which is quite convenient to use. Moreover, since the unlocking member 33 is made of plastic material, the risk of the user's hand being scratched during operation can be reduced.

[0045] Refer to Figure 5 , Figure 6 and Figure 13 , the detachment operating member group 34 has a detachment operating member 341 movably disposed on the inner rail 31, a detachment connecting piece 342 connecting the detachment operating member 341, a detachment stopping member 343 pivotally mounted on the inner rail 31, and a detachment elastic member 344 disposed between the inner rail 31 and the detachment operating member 341. The detachment operating member 341 has a detachment flat portion 341a, a detachment movable portion 341b protruding from the detachment flat portion 341a toward the inner middle surface 311 and extending into the detachment movable groove 318, and a detachment accommodating groove 341c formed between the detachment flat portion 341a and the detachment movable portion 341b for accommodating the detachment elastic member 344. The detachment elastic member 344 is partially located in the detachment movable groove 318 and one end abuts against the inner rail 31. The detachment stopping member 343 has a detachment pivoting portion 343a pivotally mounted on the inner middle surface 311, a detachment stopping portion 343b connecting one side of the detachment pivoting portion 343a and extending upwardly and obliquely to abut against the inner rail 31, and a detachment hook portion 343d connecting the detachment pivoting portion 343a and extending downwardly. The detachment connecting piece 342 has a detachment pushing portion 342a capable of abutting against the detachment stopping portion 343b (see Figure 17 ).

[0046] Refer to Figure 5 , Figure 6 and Figure 14, the retraction operating member group 35 has a retraction operating member 351 movably disposed on the inner rail 31, a retraction connecting piece 352 connecting the retraction operating member 351, a retraction stop member 353 pivotally provided on the inner rail 31, and a retraction elastic member 354 disposed between the inner rail 31 and the retraction operating member 351. The retraction operating member 351 has a retraction flat portion 351a, a retraction movable portion 351b protruding from the retraction flat portion 351a toward the inner middle surface 311 and extending into the retraction movable groove 319, and a retraction accommodating groove 351c formed between the retraction flat portion 351a and the retraction movable portion 351b for accommodating the retraction elastic member 354. The retraction elastic member 354 is partially located in the retraction movable groove 319 and one end abuts against the inner rail 31. The retraction stop member 353 has a retraction pivot portion 353a pivotally provided on the inner middle surface 311, a retraction stop portion 353b connecting one side of the retraction pivot portion 353a and extending upwardly and obliquely to abut against the inner rail 31, a retraction actuating portion 353c connecting the other side of the retraction pivot portion 353a and extending downwardly, and a retraction hook portion 353d connecting the retraction pivot portion 353a and extending downwardly. The retraction connecting piece 352 has a retraction pushing portion 352a capable of abutting against the retraction actuating portion 353c (see Figure 17 ). Both ends of the stop elastic member 36 are respectively connected to the release hook portion 343d and the retraction hook portion 353d, so as to provide an elastic force to reset the release stop member 343 or the retraction stop member 353 after the release stop member 343 or the retraction stop member 353 pivots.

[0047] Refer to Figure 1 , Figures 15 to 17 , the inner rail unit 3 can extend relative to the middle rail 2 to reach an extended position, as shown in Figure 15 . At the extended position, the inner middle stop member 21 of the middle rail 2 is blocked by the release stop member 343 and the retraction stop member 353, so that the inner rail 31 can be positioned relative to the middle rail 2 and cannot be further pulled out relative to the middle rail 2, preventing the inner rail unit 3 from detaching from the middle rail 2, nor can it be pushed back, preventing the inner rail unit 3 from retracting into the middle rail 2, as shown in Figure 16 . When the user wants to repair the server chassis 20, it is necessary to detach the server chassis 20 together with the inner rail unit 3 from the middle rail 2 before the above-mentioned unlocking process can be performed. At this time, as long as the release operating member 341 is pushed to the left, the release connecting piece 342 can be driven to move to the left, and the release pushing portion 342a can push the release stop portion 343b to pivot the release stop member 343 downward. At this time, the inner rail unit 3 is no longer blocked by the inner middle stop member 21 and can continue to move to the left and finally be pulled out relative to the middle rail 2, as shown in Figure 17As shown. During the process of the detachment operating member 341 moving leftward, the detachment elastic member 344 is compressed to accumulate elastic restoring force. After the inner rail unit 3 is pulled out relative to the middle rail 2 unit, the user stops pushing the detachment operating member 341. The elastic restoring force of the detachment elastic member 344 can push the detachment operating member 341 to reset, causing the detachment stop member 343 to pivot upward and reset, which is quite convenient in use.

[0048] Refer to Figure 1 , Figure 16 and Figure 18 , when the server chassis 20 is repaired, when the user wants to retract the inner rail unit 3, it is necessary to push the server chassis 20 together with the inner rail unit 3 back to the right toward the middle rail 2. At this time, as long as the retraction operating member 351 is pushed leftward, it can drive the retraction connecting piece 352 to move leftward, and the retraction pushing portion 352a can push the retraction actuating portion 353c to pivot the retraction stop member 353 downward. At this time, the inner rail unit 3 is no longer blocked by the inner and middle stop member 21 and can continue to move rightward to retract the inner rail unit 3, as Figure 18 shown. During the process of the retraction operating member 351 moving leftward, the retraction elastic member 354 is compressed to accumulate elastic restoring force. After the inner rail unit 3 is retracted relative to the middle rail 2 unit, the user stops pushing the retraction operating member 351. The elastic restoring force of the retraction elastic member 354 can push the retraction operating member 351 to reset, causing the retraction stop member 353 to pivot upward and reset, which is quite convenient in use.

[0049] Refer to Figure 1 , Figure 19 and Figure 20 , when the inner rail unit 3 moves and retracts relative to the middle rail 21 in the direction of the second end 314, the stop and reset portion 222 of the stop and reset member 22 can extend into the card slot 331a to abut against the operating portion 331 of the unlocking member 33, as Figure 19 shown. As the inner rail unit 3 continues to move, the stop and reset portion 222 pushes the unlocking member 33 to move toward the first end 313 and reset, as Figure 20 shown. With such a design, even if the user forgets to manually reset the unlocking member 33, the locking member 32 can still re-engage with the engaging member 4 to prevent the server chassis 20 from falling off the inner rail unit 3 and causing damage to other server chassis 20, and also prevent the user from being crushed, which can play a role in preventing mistakes and serve as a safety mechanism.

[0050] In summary, the slide rail device of the present utility model can abut against the unlocking member 33 by means of the stopping and resetting member 22 and push the unlocking member 33 to move toward the first end 313 for resetting, so that the locking member 32 can re-abut against the engaging member 4, preventing the server chassis 20 from falling off the inner rail unit 3 and causing damage to other server chassis 20, and also preventing users from being crushed. It can play a role in preventing mistakes and serve as a safety mechanism. Therefore, it can indeed achieve the purpose of the present utility model.

[0051] The above are only the embodiments of the present utility model, and the scope of implementation of the present utility model cannot be limited thereby. All simple equivalent changes and modifications made according to the claims and the content of the specification of the present utility model still belong to the scope of the present utility model.

Claims

1. A slide rail device is applicable to connect a server chassis which has engaging members, and is characterized in that: The slide rail device includes: A middle rail unit, including a middle rail and a stop and reset member provided on the middle rail; And An inner rail unit, including an inner rail movably provided on the middle rail, a locking member provided on the inner rail, and an unlocking member provided on the inner rail and connected to the locking member. The inner rail has an inner middle surface facing the middle rail, a first end, a second end opposite to the first end, and a locking groove for the engaging member to extend into. The locking member can abut against the engaging member to prevent the engaging member from disengaging from the locking groove. The unlocking member can be operated to move towards the second end and push the locking member away from the inner middle surface to release the abutting relationship between the locking member and the engaging member. When the inner rail unit moves relative to the middle rail in the direction of the second end, the stop and reset member can abut against the unlocking member and push the unlocking member to move towards the first end for reset.

2. The slide rail device according to claim 1, characterized in that: The middle rail has a middle inner surface facing the inner rail, a middle outer surface opposite to the middle inner surface, and a through groove communicating the middle inner surface and the middle outer surface. The stop and reset member has a flat plate mounting portion provided on the middle outer surface and a stop and reset portion bent from the flat plate mounting portion towards the inner rail and extending through the through groove.

3. The slide rail device according to claim 2, wherein: The locking member has a mounting portion provided on the inner middle surface and a abutting portion connected to the mounting portion and capable of abutting against the engaging member. The abutting portion has a card hole for the engaging member to extend into.

4. The slide rail device according to claim 3, characterized in that: The inner rail has two unlocking grooves. The locking groove is closer to the first end relative to the unlocking grooves. The unlocking member has an operating portion capable of abutting against the stop and reset portion, two covering portions connecting both ends of the operating portion, and two abutting portions respectively protruding from the covering portions towards the inner middle surface. The operating portion and the covering portions jointly clamp the mounting portion of the locking member. Each of the abutting portions extends into the corresponding unlocking groove and has a card abutting inclined surface capable of abutting against the inner rail. The operating portion can be operated to move in a direction away from the first end, so that the card abutting inclined surface abuts against the inner rail to drive the unlocking member away from the inner middle surface, and further drive the locking member away from the inner middle surface to release the abutting relationship between the abutting portion and the engaging member.

5. The slide rail device according to claim 4, characterized in that: The operating portion forms a card slot, and the stop and reset portion can extend into the card slot.

6. The slide rail device according to claim 1, characterized in that: The middle rail forms an inner middle stop member protruding towards the inner middle surface. The inner rail unit further includes a disengagement operating member group provided on the inner rail. The disengagement operating member group has a disengagement operating member movably provided on the inner rail, a disengagement connecting piece connected to the disengagement operating member, and a disengagement stop member pivotally provided on the inner rail. The disengagement connecting piece can abut against the disengagement stop member. The disengagement operating member can be operated to drive the disengagement connecting piece to move, and further push the disengagement stop member to pivot to release the stop relationship between the disengagement stop member and the inner middle stop member.

7. The slide rail device according to claim 6, characterized in that: The disengagement operating member group further includes a disengagement elastic member provided between the inner rail and the disengagement operating member.

8. The slide rail device according to claim 7, wherein: The inner rail further has a disengagement activity groove. The disengagement operating member has a disengagement flat plate portion, a disengagement activity portion protruding from the disengagement flat plate portion towards the inner middle surface and extending into the disengagement activity groove, and a disengagement accommodation groove formed between the disengagement flat plate portion and the disengagement activity portion for accommodating the disengagement elastic member. The disengagement elastic member is partially located in the disengagement activity groove and one end abuts against the inner rail.

9. The slide rail device according to claim 8, characterized in that: The inner rail unit further includes a retraction operation member group disposed on the inner rail. The retraction operation member group has a retraction operation member movably disposed on the inner rail, a retraction connection piece connecting the retraction operation member, and a retraction stopper pivotally mounted on the inner rail. The retraction connection piece can abut against the retraction stopper. The retraction operation member can be operated to drive the retraction connection piece to move, thereby pushing against the retraction stopper to pivot, so as to release the blocking relationship between the retraction stopper and the inner middle stopper.

10. The slide rail device according to claim 9, wherein: The retraction operation member group further includes a retraction elastic member disposed between the inner rail and the retraction operation member.

11. The slide rail device according to claim 10, wherein: The inner rail further has a retraction activity groove. The retraction operation member has a retraction flat portion, a retraction activity portion protruding from the retraction flat portion toward the inner middle surface and extending into the retraction activity groove, and a retraction accommodation groove formed between the retraction flat portion and the retraction activity portion for accommodating the retraction elastic member. The retraction elastic member is partially located in the retraction activity groove and one end abuts against the inner rail.

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