Slide rail device

Abstract

A sliding rail device is suitable for being connected with a server case with a joint piece and comprises a middle rail unit and an inner rail unit. 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 and a locking groove, and the locking groove is used for the joint piece to stretch into. The locking piece can abut against the joint piece in a clamping mode so as to prevent the joint piece from being separated from the locking groove, and the unlocking piece can be operated to push the locking piece to be away from the inner middle face so as to relieve the abutting relation between the locking piece and the joint piece.

Description

Technical Field

[0001] The utility model relates to a slide rail device, in particular to a slide rail device for facilitating the disassembly of a server chassis. Background Art

[0002] The existing installation hole unlocking structure is installed on the slide rail device through an elastic member. When a user wants to install a server chassis on the slide rail, the T-shaped nail of the chassis can be stuck on the slide rail through the elastic force, and the chassis needs to be manually toggled the elastic member to be removed. At this time, the user's hand is easily scratched, causing inconvenience in use. Therefore, there is still room for improvement. Summary of the Utility Model

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

[0004] The slide rail device of the utility model is suitable for connecting a server chassis, and the server chassis has a joint member. The slide rail device includes: a middle rail; and an inner rail unit, including an inner rail movably arranged on the middle rail, a locking member arranged on the inner rail, and an unlocking member arranged on the inner rail and connected to the locking member. The inner rail has an inner middle surface facing the middle rail and a locking groove for the joint member to extend into. The locking member can be abutted against the joint member to prevent the joint member from disengaging from the locking groove. The unlocking member can be operated to push the locking member away from the inner middle surface to release the abutting relationship between the locking member and the joint member.

[0005] In some embodiments, the locking member has a mounting portion arranged on the inner middle surface and a abutting portion connected to the mounting portion and capable of abutting against the joint member. The abutting portion has a card hole for the joint member to extend into.

[0006] In some embodiments, the inner rail further has a first end and two unlocking grooves. The locking groove is closer to the first end than the unlocking grooves. The unlocking member has an operating 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 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 joint member.

[0007] In some embodiments, the inner rail further has a first end and two unlocking slots. The locking slot is closer to the first end relative to the unlocking slots. The unlocking member has an operating portion, two covering portions connecting the two 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 covering portions has an abutting block. The abutting block has an abutting inclined surface abutting the mounting portion. The abutting blocks extend toward each other. Each of the abutting portions extends into the corresponding unlocking slot. The operating portion can be operated to move in a direction away from the first end, so that the abutting inclined surface abuts the mounting portion, and then upwardly support the locking member away from the inner middle surface to release the locking relationship between the locking portion and the engaging member.

[0008] In some embodiments, the middle rail forms an inner middle stopper protruding toward the inner middle surface. The inner rail unit further includes a disengaging operation member group disposed on the inner rail. The disengaging operation member group has a disengaging operation member movably disposed on the inner rail, a disengaging connection piece connecting the disengaging operation member, and a disengaging stopper pivotally disposed on the inner rail. The disengaging connection piece can abut the disengaging stopper. The disengaging operation member can be operated to drive the disengaging connection piece to move, and then push the disengaging stopper to pivot to release the stopping relationship between the disengaging stopper and the inner middle stopper.

[0009] In some embodiments, the disengaging operation member group further includes a disengaging elastic member disposed between the inner rail and the disengaging operation member.

[0010] In some embodiments, the inner rail further has a disengaging activity slot. The disengaging operation 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 the inner rail.

[0011] In some embodiments, the inner rail unit further includes a retracting operation member group disposed on the inner rail. The retracting operation member group has a retracting operation member movably disposed on the inner rail, a retracting connection piece connecting the retracting operation member, and a retracting stopper pivotally disposed on the inner rail. The retracting connection piece can abut the retracting stopper. The retracting operation member can be operated to drive the retracting connection piece to move, and then push the retracting stopper to pivot to release the stopping relationship between the retracting stopper and the inner middle stopper.

[0012] In some embodiments, the retracting operation member group further includes a retracting elastic member disposed between the inner rail and the retracting operation member.

[0013] In some embodiments, the inner rail further has a retraction moving slot. The retraction operating member has a retraction flat portion, a retraction moving portion protruding from the retraction flat portion toward the inner middle surface and extending into the retraction moving slot, and a retraction accommodation slot formed between the retraction flat portion and the retraction moving portion for accommodating the retraction elastic member. The retraction elastic member is partially located in the retraction moving slot and one end abuts against the inner rail.

[0014] The beneficial effects of the present utility model are as follows: By operating the unlocking member to push the locking member away from the inner middle surface, the latching relationship between the locking member and the engaging member can be released, and the user can remove the server chassis together with the engaging member from the inner rail, which is quite convenient to use. Description of the Drawings

[0015] Other features and effects of the present utility model will be clearly presented in the embodiments with reference to the drawings, wherein:

[0016] Figure 1 is a perspective view of a first embodiment of the slide rail device of the present utility model;

[0017] Figure 2 is an exploded perspective view of the first embodiment;

[0018] Figure 3 is an incomplete perspective view of a middle rail of the first embodiment;

[0019] Figure 4 is an incomplete perspective view of an inner rail unit of the first embodiment;

[0020] Figure 5 is an exploded perspective view of the inner rail unit of the first embodiment;

[0021] Figure 6 is a side view of an unlocking member of the inner rail unit of the first embodiment;

[0022] Figure 7 is a bottom view of the unlocking member of the first embodiment;

[0023] Figure 8 is from Figure 4 an incomplete cross-sectional view obtained by the section line XIII-XIII;

[0024] Figure 9 is similar to Figure 8 an incomplete cross-sectional view, showing the unlocking member driving a locking member to move away from an inner rail;

[0025] Figure 10 is an incomplete front view of the inner rail unit of the first embodiment;

[0026] Figure 11 is an incomplete front view of the inner rail unit of the first embodiment, showing that the unlocking member drives the locking member to move away from the inner rail;

[0027] Figure 12 is a perspective view of a detachment operating member of a detachment operating member group of the inner rail unit of the first embodiment;

[0028] Figure 13 is a retraction

[0029] operating member of a retraction operating member group of the inner rail unit of the first embodiment;

[0030] Figure 14 is a perspective view of the first embodiment, showing that the inner rail unit extends relative to the middle rail to an extended position;

[0031] Figure 15 is an incomplete front view of the inner rail unit of the first embodiment;

[0032] Figure 16 is an incomplete front view of the inner rail unit of the first embodiment, showing that the detachment operating member is pushed to the left, causing the detachment stopper to pivot downward;

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

[0034] Figure 18 is an incomplete perspective view of an inner rail unit of a second embodiment of the slide rail device of the present utility model;

[0035] Figure 19 is a side view of an unlocking member of the inner rail unit of the second embodiment;

[0036] Figure 20 is from Figure 19 a cross-sectional view taken along the section line XX-XX;

[0037] Figure 21 is a bottom view of the unlocking member of the inner rail unit of the second embodiment;

[0038] Figure 22 is from Figure 18 an incomplete cross-sectional view taken along the section line XXII-XXII;

[0039] Figure 23 is similar to Figure 22 an incomplete cross-sectional view, showing that the unlocking member drives a locking member to move away from an inner rail;

[0040] Figure 24 is an incomplete front view of the inner rail unit of the second embodiment;

[0041] Figure 25 is an incomplete front view of the inner rail unit of the second embodiment, showing that the unlocking member drives the locking member to move away from the inner rail. Detailed implementation manners

[0042] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in 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. However, it should not be construed as a limitation on the protection scope of the present invention.

[0043] In the description of the present invention, 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., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 on the present invention.

[0044] In the description of the present invention, the meaning of several is one or more, and the meaning of multiple

[0045] is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be construed 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.

[0046] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0047] Refer to Figure 1 and Figure 2, a first embodiment of the slide rail device of the present utility model is applicable to be arranged in a server cabinet (not shown in the figure) and for arranging a server chassis 20. It should be noted that the positions for accommodating the server chassis 20 in the server cabinet 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 member 4. Each slide rail device includes an outer rail 1, a middle rail 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.

[0048] With reference to Figures 3 to 8 , the inner rail unit 3 includes an inner rail 31 movably arranged in 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 stop 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 connected to the inner middle surface 311, a disengaging activity groove 318 and a retracting activity groove 319. The locking groove 315 is for the joint member 4 to extend into. The locking groove 315 is closer to the first end 313 than the unlocking grooves 316. The middle rail 2 is movably arranged in the outer rail 1 and forms an inner middle stop member 21 protruding towards the inner middle surface 311. It should be noted that the locking groove 315 is not limited to the position adjacent to the first end 313, and can also be in other positions in other embodiments.

[0049] Refer to Figures 5 to 7 , 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 connection portion connecting the mounting portion 321 and capable of abutting against the joint member

[0050] The card abutting portion 322 of 4, the card abutting portion 322 has a card hole 322a that is substantially circular for the engaging member 4 to extend into, thereby abutting against the engaging member 4 to prevent the engaging member 4 from detaching from the locking groove 315. The unlocking member 33 has an operating portion 331, two covering portions 332 connecting the two ends of the operating portion 331, and two abutting portions 333 respectively protruding from the covering portions 332 toward the inner middle surface 311. 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 card abutting inclined surface 333a that can abut against the corresponding unlocking inclined surface 317 of the inner rail 31. In this embodiment, the unlocking member 33 is made of plastic material.

[0051] Refer to Figure 1 , Figures 8 to 11 , when the operating portion 331 of the unlocking member 33 can be operated to move away from the first end 313, the card abutting inclined surface 333a abuts against the corresponding unlocking inclined surface 317 of the inner rail 31 to drive the unlocking member 33 away from the inner middle surface 311, and then the locking member 32 is tilted away from the inner middle surface 311 to release the card abutting relationship between the card abutting portion 322 and the engaging member 4. The user can then 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.

[0052] Refer to Figure 4 , Figure 5 and Figure 12, 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 moving portion 341b protruding from the detachment flat portion 341a toward the inner middle surface 311 and extending into the detachment moving slot 318, and a detachment accommodating slot 341c formed between the detachment flat portion 341a and the detachment moving portion 341b for accommodating the detachment elastic member 344. The detachment elastic member 344 is partially located in the detachment moving slot 318 and one end abuts against the inner rail 31. The detachment stopping member 343 has a detachment pivot portion 343a pivotally mounted on the inner middle surface 311, a detachment stopping portion 343b connecting one side of the detachment pivot portion 343a and extending upwardly and obliquely to abut against the inner rail 31, and a detachment hook portion 343d connecting the detachment pivot 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 16 ).

[0053] Refer to Figure 4 , Figure 5 and Figure 13 , 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 stopping member 353 pivotally mounted 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 moving portion 351b protruding from the retraction flat portion 351a toward the inner middle surface 311 and extending into the retraction moving slot 319, and a retraction accommodating slot 351c formed between the retraction flat portion 351a and the retraction moving portion 351b for accommodating the retraction elastic member 354. The retraction elastic member 354 is partially located in the retraction moving slot 319 and one end abuts against the inner rail 31. The retraction stopping member 353 has a retraction pivot portion 353a pivotally mounted on the inner middle surface 311, a retraction stopping 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 16)。The two ends of the blocking elastic member 36 are respectively connected to the disengaging hook portion 343d and the retracting hook portion 353d, and are used to provide an elastic force to reset the disengaging stopper 343 or the retracting stopper 353 after the disengaging stopper 343 or the retracting stopper 353 pivots.

[0054] Refer to Figure 1 , Figures 14 to 16 , the inner rail unit 3 can extend relative to the middle rail 2 to reach an extended position, as Figure 14 shown. When in the extended position, the inner middle stopper 21 of the middle rail 2 will be blocked by the disengaging stopper 343 and the retracting stopper 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 Figure 15 shown. 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 disengaging operating member 341 is pushed to the left, the disengaging connecting piece 342 can be driven to move to the left, and the disengaging pushing portion 342a can push the disengaging blocking portion 343b to pivot the disengaging stopper 343 downward. At this time, the inner rail unit 3 is no longer blocked by the inner middle stopper 21 and can continue to move to the left and finally be pulled out relative to the middle rail 2, as Figure 16 shown. During the process of the disengaging operating member 341 moving to the left, the disengaging elastic member 344 is compressed and stores elastic restoring force. After the inner rail unit 3 is pulled out relative to the middle rail 2 unit, the user stops pushing the disengaging operating member 341, and the elastic restoring force of the disengaging elastic member 344 can push the disengaging operating member 341 to reset, so that the disengaging stopper 343 pivots upward to reset, so that

[0055] it is quite convenient to use.

[0056] Refer to Figure 1 , Figure 15 and Figure 17 , when the user of the server chassis 20 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 towards the middle rail 2. At this time, as long as the retracting operating member 351 is pushed to the left, the retracting connecting piece 352 can be driven to move to the left, and the retracting pushing portion 352a can push the retracting actuating portion 353c to pivot the retracting stopper 353 downward. At this time, the inner rail unit 3 is no longer blocked by the inner middle stopper 21 and can continue to move to the right to retract the inner rail unit 3, as Figure 17As 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 retracts 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 blocking member 353 to pivot upward and reset, which is quite convenient in use.

[0057] Refer to Figures 18 to 21 , a second embodiment of the slide rail device of the present utility model, which is similar to the first embodiment, except that the states of the locking member 32 and the unlocking member 33' of the inner rail unit are different, and the unlocking groove 316 does not have an unlocking inclined surface 317. The difference between the locking member 32 and the first embodiment is only that the locking hole 322a' is generally square. The unlocking member 33' has an operating portion 331', two covering portions 332' connecting the two ends of the operating portion 331', and two abutting portions 333' respectively protruding from the covering portions 332' toward the inner middle surface 311. The operating portion 331' and the covering portions 332' jointly clamp the mounting portion 321 of the locking member 32. The operating portion 331' has a convex rib 331a' that abuts downward against the mounting portion 321 in an arc shape. Each of the covering portions 332' has an abutting block 332a', and the abutting block 332a' has an abutting inclined surface 332b' that abuts the mounting portion 321. The abutting blocks 332a' extend toward each other, and each of the abutting portions 333' extends into the corresponding unlocking groove 316.

[0058] Refer to Figure 1 , Figures 22 to 25 , the operating portion 331' can be operated to move in a direction away from the first end 313, so that the abutting inclined surface 332b' abuts the mounting portion 321, and then upwardly supports the locking member 32 away from the inner middle surface 311 to release the locking relationship between the locking portion 322 and the engaging member 4. The user can then 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 also be completed only by pushing the operating portion 331' of the unlocking member 33', which is quite convenient in 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, and the same effect as the first embodiment can be achieved.

[0059] In summary, the slide rail device of the present utility model can be operated by the unlocking members 33 and 33' to push the locking member 32 away from the inner middle surface 311 to release the locking relationship between the locking member 32 and the engaging member 4. The user can then detach the server chassis 20 together with the engaging member 4 from the inner rail 31, which is quite convenient in use. Therefore, the purpose of the present utility model can indeed be achieved.

[0060] The above are only the embodiments of the present utility model, and thus cannot be used to limit the scope of implementation of the present utility model. All simple equivalent changes and modifications made according to the claims and the content of the specification of the present utility model still fall within 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: The middle rail; And An inner rail unit, including an inner rail movably arranged on the middle rail, a locking member arranged on the inner rail, and an unlocking member arranged on the inner rail and connected to the locking member. The inner rail has an inner middle surface facing the middle rail 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 push the locking member away from the inner middle surface to release the abutting relationship between the locking member and the engaging member.

2. The slide rail device according to claim 1, wherein: The locking member has a mounting portion arranged 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.

3. The slide rail device according to claim 2, wherein: The inner rail further has a first end and two unlocking grooves. The locking groove is closer to the first end relative to the unlocking grooves. The unlocking member has an operating portion, two covering portions connecting the two 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 groove and has a 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 abutting inclined surface abuts against the inner rail and drives the unlocking member away from the inner middle surface, and further drives the locking member away from the inner middle surface to release the abutting relationship between the abutting portion and the engaging member.

4. The slide rail device according to claim 2, characterized in that: The inner rail further has a first end and two unlocking grooves. The locking groove is closer to the first end relative to the unlocking grooves. The unlocking member has an operating portion, two covering portions connecting the two 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 covering portions has an abutting block, and the abutting block has an abutting inclined surface for abutting against the mounting portion. The abutting blocks extend toward each other. Each of the abutting portions extends into the corresponding unlocking groove. The operating portion can be operated to move in a direction away from the first end, so that the abutting inclined surface abuts against the mounting portion, and then upwardly supports 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 1, characterized in that: The middle rail forms an inner middle stop member protruding toward the inner middle surface. The inner rail unit further includes a detachment operating member group arranged on the inner rail. The detachment operating member group has a detachment operating member movably arranged on the inner rail, a detachment connecting piece connected to the detachment operating member, and a detachment stop member pivotally arranged on the inner rail. The detachment connecting piece can abut against the detachment stop member. The detachment operating member can be operated to drive the detachment connecting piece to move, and further push the detachment stop member to pivot to release the stop relationship between the detachment stop member and the inner middle stop member.

6. The slide rail device according to claim 5, characterized in that: The detachment operating member group further includes a detachment elastic member arranged between the inner rail and the detachment operating member.

7. The slide rail device according to claim 6, wherein: The inner rail further has a detachment activity groove. The detachment operating member has a detachment flat portion, a detachment activity portion protruding from the detachment flat portion toward the inner middle surface and extending into the detachment activity groove, and a detachment accommodation groove formed between the detachment flat portion and the detachment activity portion for accommodating the detachment elastic member. The detachment elastic member is partially located in the detachment activity groove and one end abuts against the inner rail.

8. The slide rail device according to claim 7, wherein: 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 disposed 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.

9. The slide rail device according to claim 8, characterized in that: The retraction operation member group further includes a retraction elastic member disposed between the inner rail and the retraction operation member.

10. The slide rail device according to claim 9, characterized in that: 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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