Slide rail clamping device

Abstract

A sliding rail clamping device is arranged on a sliding rail, and the sliding rail comprises an outer rail and an inner rail. The sliding rail clamping device comprises a base unit and a clamping unit. The base unit comprises an outer frame fixedly connected with the outer rail, a base fixedly connected with the inner rail and an inner support fixedly connected to the base, the outer frame is provided with an outer connecting part fixedly connected with the outer rail and a clamping part extending in the direction away from the outer rail from the outer connecting part, and the inner support and the base jointly define a movable groove. The clamping unit comprises a clamping piece pivoted to the base, a driving piece connected with the clamping piece and movably contained in the movable groove and an elastic piece connected with the base and the clamping piece, the clamping piece is provided with a clamping part capable of being clamped to the clamping part, and the driving piece can be driven to move along the movable groove. And the driving part is used for driving the clamping piece to pivot, so that the clamping relation between the clamping part and the clamping part is released, and the inner rail, the base and the inner bracket can move relative to the outer rail.

Description

TECHNICAL FIELD

[0001] The utility model relates to a clamping device, in particular to a sliding rail clamping device. BACKGROUND

[0002] A conventional sliding rail clamping device is disposed between an inner rail and an outer rail of a sliding rail to prevent the inner rail from sliding out relative to the outer rail. The sliding rail is disposed in a server cabinet, the outer rail is disposed in the server cabinet, and the inner rail is connected to a server. The sliding rail clamping device includes an outer connecting frame fixed to the outer rail and a clamping member pivotally disposed on the inner rail and clamped to the outer connecting frame. When the clamping member is clamped to the outer connecting frame, the inner rail is prevented from sliding out relative to the outer rail. When the clamping relationship between the clamping member and the outer connecting frame is released, the inner rail can move relative to the outer rail, so that the server can be removed from the server cabinet for maintenance. However, the clamping member of the conventional sliding rail clamping device is pivotally disposed on the inner rail, the inner rail is relatively long, and the material of the inner rail is relatively soft steel. The clamping member can be easily pivoted due to deformation of the inner rail, or the clamping member cannot be clamped. Therefore, there is still room for improvement. SUMMARY

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

[0004] The sliding rail clamping device of the utility model is suitable for being disposed in a sliding rail, the sliding rail includes an outer rail and an inner rail capable of moving relative to the outer rail, the sliding rail clamping device includes a base unit and a clamping unit, the base unit includes an outer frame suitable for being fixed to the outer rail, a base suitable for being fixed to the inner rail, and an inner support fixed to the base, the outer frame has an outer connecting portion suitable for being fixed to the outer rail and a clamping portion extending away from the outer rail from the outer connecting portion, the strength of the base is greater than the strength of the inner rail, and the inner support and the base jointly define a movable slot; the clamping unit includes a clamping member pivotally disposed on the base, a driving member connected to the clamping member and movably accommodated in the movable slot, and an elastic member connected to the base and the clamping member, the clamping member has a clamping portion capable of being clamped to the clamping portion, and the driving member can be driven to move along the movable slot to drive the clamping member to pivot to release the clamping relationship between the clamping portion and the clamping portion, so that the inner rail, the base, and the inner support can move relative to the outer rail.

[0005] In some embodiments, the clamping member further includes a pivot portion pivotally disposed on the base and connected to the clamping portion, and a linkage portion connected to the pivot portion and the driving member.

[0006] In some embodiments, the driving member has an operation portion and a driving portion connected to the operation portion, the driving portion has a bottom wall connected to the operation portion, a side wall extending from the bottom wall away from the operation portion, and a top wall connected to the side wall and spaced apart from the bottom wall, the driving portion defines an engaging groove for accommodating the linkage portion.

[0007] In some embodiments, the linkage portion forms an elongated linkage groove, and the side wall forms a linkage protrusion movably accommodated in the linkage groove.

[0008] In some embodiments, the base has a base plate portion for pivoting the catch member, a guide portion connected to one side of the base plate portion away from the outer rail, and an inner engaging portion connected to one side of the base plate portion adjacent to the outer rail, the base plate portion forms an opening for the catch portion to pass through to be caught by the engaging portion, the guide portion cooperates with the inner support to define the movable groove, and the inner engaging portion is suitable for fixedly connecting the inner rail.

[0009] In some embodiments, the inner support has a cover portion engaged with the base plate portion, and a movable portion connected to the cover portion, the cover portion forms an accommodation groove for accommodating the catch member, the movable portion includes a base wall and a surrounding wall extending from the base wall towards the guide portion, the surrounding wall forms a communication port communicating the accommodation groove for the linkage portion to pass through, and the base wall, the surrounding wall, and the guide portion cooperatively define the movable groove with the opening downward.

[0010] In some embodiments, the surface of the side wall towards the base wall forms a guide groove extending upward and downward, and the base wall forms a guide rib extending upward and downward and extending into the guide groove.

[0011] In some embodiments, the surface of the guide portion towards the driving member forms a guide groove extending upward and downward, and the top wall forms a guide block extending upward and downward and extending into the guide groove.

[0012] In some embodiments, the engaging portion has an upper plate segment connected to the outer connecting portion, and an engaging segment downwardly extending from the upper plate segment and spaced apart from the outer connecting portion, and the catch portion is catchable to the engaging segment.

[0013] In some embodiments, the engaging portion further has a lower plate segment connected to the outer connecting portion and spaced apart below the upper plate segment, the upper plate segment, the engaging segment, and the lower plate segment cooperatively define a slot, the slot has a first slot portion defined by the engaging segment and the lower plate segment, and a second slot portion defined by the upper plate segment and the lower plate segment, the first slot portion communicates with the second slot portion, and the width of the first slot portion extending in the upward and downward direction is less than the width of the second slot portion extending in the upward and downward direction, the second slot portion movably accommodates the catch portion, and after the catch portion is released from the engaging relationship with the engaging portion, when the inner rail, the base, and the inner support move relative to the outer rail, the catch portion can pass through the first slot portion to be separated from the outer frame.

[0014] In some embodiments, the engaging section at the opening of the first slot further has a guide slope.

[0015] In some embodiments, the elastic member is a torsion spring with one end fixed to the pivot portion and the other end fixed to the base, and the catch member further has a positioning portion extending from the pivot portion towards the inner support and bent downward, the positioning portion and the pivot portion together positioning a portion of the elastic member.

[0016] In some embodiments, the bottom wall of the driving portion forms an arc surface protruding towards the top wall, and the operation portion forms an operation surface protruding downward as an arc convex surface.

[0017] The beneficial effects of the utility model lie in that the catch member is pivoted to the base with higher strength instead of the inner rail, which can avoid deformation of the inner rail to make the catch member pivot improperly or even lose the function of clamping with the engaging portion of the outer frame. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features and effects of the utility model will be clearly presented in the embodiments with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of a first embodiment of the utility model sliding rail catch device arranged on a sliding rail;

[0020] Figure 2 is a perspective exploded view of the first embodiment and the sliding rail;

[0021] Figure 3 is a perspective exploded view of the first embodiment;

[0022] Figure 4 is a perspective exploded view of the first embodiment from another angle;

[0023] Figure 5 is a rear view of an inner support of a base unit of the first embodiment;

[0024] Figure 6 is a rear view of the first embodiment, illustrating that a clamping portion of a catch member of a catch unit clamps with an engaging section of a clamping portion of an outer frame;

[0025] Figure 7 is a rear view similar to Figure 6 , illustrating the process that the clamping portion of the catch member is pivoted downward by a driving member;

[0026] Figure 8 is a rear view similar to Figure 7 , illustrating that the clamping portion of the catch member is pivoted downward to the bottom, and the clamping relationship between the clamping portion and the engaging section of the clamping portion is released.

[0027] Figure 9 is a perspective exploded view of a second embodiment of the slide rail clamping device of the present application;

[0028] Figure 10 is a perspective exploded view of another view of the second embodiment;

[0029] Figure 11 is a rear view of the second embodiment, illustrating that a clamping portion of a clamping member of a clamping unit clamps a clamping segment of a clamping portion of an outer frame;

[0030] Figure 12 is a rear view similar to Figure 11 , illustrating that the clamping portion of the clamping member is pivoted downward to the bottom, and the clamping relationship between the clamping portion and the clamping segment of the clamping portion is released;

[0031] Figure 13 is a rear view of the second embodiment, illustrating that the clamping member abuts a guide inclined surface of the outer frame and is pivoted downward into a first slot portion of a slot. DETAILED DESCRIPTION

[0032] Before the present application is described in detail, it is to be noted that like components have been identified with like numerals throughout the various drawings and the description of the application.

[0033] Referring to Figure 1 and Figure 2 , a first embodiment of the slide rail clamping device 10 of the present application is suitable for being arranged in a slide rail 100. The slide rail 100 is arranged in a server cabinet (not shown in the figure), and includes an outer rail 101, a middle rail 102 movably arranged in the outer rail 101, and an inner rail 103 movably arranged in the middle rail 102 and movable relative to the outer rail 101 and the middle rail 102. The outer rail 101 is fixedly connected to the server cabinet (not shown in the figure). The inner rail 103 is fixedly connected to a server case (not shown in the figure). The slide rail clamping device 10 includes a base unit 1 and a clamping unit 2.

[0034] Referring to Figures 2 to 4The base unit 1 includes an outer frame 11 adapted to secure the outer rail 101, a base 12 adapted to secure the inner rail 103, and an inner bracket 13 secured to the base 12. The outer frame 11 has an outer connecting portion 111 adapted to secure the outer rail 101, and an engaging portion 112 extending from the outer connecting portion 111 away from the outer rail 101. The engaging portion 112 has an upper plate section 112a connecting the outer connecting portion 111, an engaging section 112b extending downwardly from the upper plate section 112a and spaced apart from the outer connecting portion 111, and a lower plate section 112c connecting the outer connecting portion 111 and spaced apart below the upper plate section 112a. The upper plate section 112a, the engaging section 112b, and the lower plate section 112c collectively define a slot 113. The slot 113 has a first slot portion 113a defined by the engaging section 112b and the lower plate section 112c, and a second slot portion 113b defined by the upper plate section 112a and the lower plate section 112c. The first slot portion 113a is in communication with the second slot portion 113b, and the width of the first slot portion 113a extending in an up-down direction is less than the width of the second slot portion 113b extending in the up-down direction.

[0035] The base 12 has a strength greater than the strength of the inner rail 103, the strength referring to the yield strength, that is, the base 12 is less likely to deform than the inner rail 103 under the same external force. The base 12 has a base plate portion 121, a guide portion 122 connecting a side of the base plate portion 121 away from the outer rail 101, and an inner engaging portion 123 connecting a side of the base plate portion 121 adjacent to the outer rail 101. The base plate portion 121 forms an opening 121a. The guide portion 122 forms a guide groove 122a extending in an up-down direction toward a surface of the inner bracket 13. The inner engaging portion 123 is adapted to secure the inner rail 103.

[0036] Referring to Figures 2 to 5 The inner bracket 13 has a cover portion 131 engaged with the base plate portion 121, and a movable portion 132 connected to the cover portion 131. The cover portion 131 is engaged with the base plate portion 121 by three fasteners 14, but is not limited thereto. The cover portion 131 forms a receiving groove 131a. The movable portion 132 includes a base wall 132a, and a surrounding wall 132b extending from the base wall 132a toward the guide portion 122. A surface of the base wall 132a facing the base 12 forms a guide rib 132a1 extending in an up-down direction. The surrounding wall 132b forms a communication port 132c in communication with the receiving groove 131a. The base wall 132a, the surrounding wall 132b, and the guide portion 122 collectively define a movable slot 132d opening downwardly.

[0037] Referring to Figure 3 , Figure 4 and Figure 6The clamping unit 2 includes a clamping member 21 pivotally arranged on the base plate portion 121 of the base 12, a driving member 22 connected to the clamping member 21 and movably received in the movable slot 132d, a resilient member 23 connected to the base 12 and the clamping member 21, and a pivot member 24 connecting the clamping member 21 to the base 12. The clamping member 21 is received in the receiving slot 131a and has a clamping portion 211 capable of passing through the opening 121a to clamp the clamping section 112b of the clamping portion 112 and movably received in the second slot portion 113b, a pivot portion 212 pivotally arranged on the base 12 and connected to the clamping portion 211, a linkage portion 213 connected to the pivot portion 212 and connected to the driving member 22 through the communication port 132c, and a positioning portion 214 extending from the pivot portion 212 toward the inner support 13 and downwardly bent. The pivot portion 212 is pivotally arranged on the base plate portion 121 by the pivot member 24. The linkage portion 213 forms an elongated linkage slot 213a. The positioning portion 214 cooperates with the pivot portion 212 to position a portion of the resilient member 23 to prevent displacement of the resilient member 23.

[0038] The driving member 22 is substantially square columnar and has an operation portion 221 and a driving portion 222 connected to the operation portion 221. The operation portion 221 forms an operation surface 221a protruding downwardly and arc-shaped convex. The driving portion 222 has a bottom wall 222a connected to the operation portion 221, a side wall 222b extending from the bottom wall 222a away from the operation portion 221, and a top wall 222c connected to the side wall 222b and spaced apart from the bottom wall 222a. The driving portion 222 defines an engagement slot 223 for receiving the linkage portion 213. The bottom wall 222a of the driving portion 222 forms an arc-shaped surface 222a1 protruding toward the top wall 222c. The side wall 222b forms a linkage convex column 222d movably received in the linkage slot 213a. The surface of the side wall 222b facing the base wall 132a forms a guide slot 222b1 extending upwardly and downwardly and receiving the guide rib 132a1( Figure 5 、 Figure 6 ) of the base wall 132a. The top wall 222c forms a guide block 222c1 extending upwardly and downwardly and protruding into the guide slot 122a. By the guide rib 132a1( Figure 5 、 Figure 6 ) protruding into the guide slot 222b1 and the guide block 222c1 protruding into the guide slot 122a, the driving member 22 can be guided to move smoothly upwardly and downwardly in the movable slot 132d.

[0039] The resilient member 23 is a torsion spring. One end of the resilient member 23 is fixed to the pivot portion 212 of the clamping member 21, and the other end is fixed to the base 12. The portion of the resilient member 23 combined with the pivot portion 212 is positioned by the pivot portion 212 and the positioning portion 214.

[0040] Referring to Figure 1 , Figures 6 to 8 , the following briefly describes the operation process of the slide rail catch device 10. When the driving member 22 is not contacted by an external object, the catch portion 211 of the catch member 21 is caught on the engagement section 112b of the engagement portion 112, so as to prevent the inner rail 103 from sliding out relative to the outer rail 101, as shown in Figure 6 . Next, when an external object (not shown) moves along the length direction of the slide rail 100 and abuts against the operation surface 221a of the driving member 22, because the operation surface 221a is protruded downward and has an arc-shaped convex surface, the external object can abut against the driving member 22 when moving, so as to drive the driving member 22 to move upward along the moving groove 132d. The driving of the catch member 21 is realized by the driving of the driving portion 222, i.e. the driving of the driving portion 222 along the moving groove 132d drives the moving of the moving portion 213 of the catch member 21, so as to drive the catch member 21 to pivot, and the catch portion 211 moves downward along the second groove portion 113b to release the catching relationship with the engagement portion 112, as shown in Figure 7 and Figure 8 . After the catch portion 211 releases the catching relationship with the engagement section 112b of the engagement portion 112, the inner rail 103, the base 12 and the inner support 13 can move relative to the outer rail 101. When the inner rail 103, the base 12 and the inner support 13 move relative to the outer rail 101, the catch portion 211 can move along the first groove portion 113a to separate from the outer frame 11, so as to take out the server case (not shown) fixed on the inner rail 103 from the server cabinet (not shown) for maintenance. It should be noted that the design that the driving member 22 drives the moving of the moving portion 213 of the catch member 21 by the driving of the driving portion 222 along the moving groove 132d can improve the cooperation tolerance between the catch member 21 and the driving member 22. Because the moving groove 213a is long, even if the sizes of the catch members 21 produced are inconsistent, the driving member 22 can still drive the moving of the moving portion 213 upward to make the catch member 21 pivot by the cooperation between the long moving groove 213a and the moving convex column 222d. The arc-shaped surface 222a1 of the bottom wall 222a can not interfere with the moving portion 213 when moving upward.

[0041] Referring to Figure 9 and Figure 10The second embodiment of the slide rail locking device 10 of this utility model is similar to the first embodiment, except for slight differences in the appearance of the outer frame 11' and the locking member 21'. The locking section 112b of the locking part 112 of the outer frame 11', located at the opening of the first groove 113a, also has a guide slope 112d. The locking member 21' omits the positioning part 214.

[0042] See Figure 1 , Figures 11 to 13 The operation flow of the second embodiment of the slide rail locking device 10 of this utility model is the same as that of the first embodiment: when the driving member 22 is not operated, the locking part 211 of the locking member 21' locks against the locking section 112b of the locking part 112 to prevent the inner rail 103 from sliding out relative to the outer rail 101, such as Figure 6 As shown. Next, when an external object (not shown) moves along the length of the slide rail 100 toward the drive member 22 and abuts against the operating surface 221a, because the operating surface 221a protrudes downward in an arc-shaped convex shape, the external object can abut against the drive member 22 during movement, allowing the drive member 22 to be driven to move upward along the movable groove 132d. By the linkage protrusion 222d of the drive part 222 moving in the linkage groove 213a to drive the linkage part 213 of the locking member 21' to move upward, the locking member 21' can be driven to pivot, causing the locking part 211 to move downward in the second groove 113b to release the locking relationship with the engaging part 112, as shown. Figure 7 and Figure 8 As shown. After the locking part 211 releases its locking relationship with the locking section 112b of the locking part 112, the inner rail 103, the base 12, and the inner bracket 13 can move relative to the outer rail 101. When the inner rail 103, the base 12, and the inner bracket 13 move relative to the outer rail 101, the locking part 211 can separate from the outer frame 11' through the first groove 113a, thereby allowing the server chassis (not shown) fixed to the inner rail 103 to be removed from the server rack (not shown) for maintenance. After maintenance, the server chassis is reinstalled on the inner rail 103. The inner rail 103, the base 12, and the inner bracket 13 then move in the opposite direction to the outer rail 101 to retract. The locking part 211 of the latching member 21' eventually abuts against the guide ramp 112d, then pivots downward into the first slot 113a of the slot 113, and finally returns to the second slot 113b and re-engages with the locking part 112. Thanks to the guide ramp 112d, the user does not need to operate the drive member 22 to move upward during the retraction process in order to pivot the latching member 21' downward and allow the locking part 211 to re-enter the slot 113, making it more convenient to use.

[0043] In summary, the slide rail catch device 10 of the utility model can avoid deformation of the inner rail 103, which can make the catch 21, 21' pivot improperly or even lose the function of catching the catch part 112 of the outer frame 11, 11', so that the utility model can achieve the purpose.

[0044] The above is only an embodiment of the utility model, and cannot limit the range of the utility model. Any simple equivalent changes and modifications made according to the claims and the content of the specification are still within the scope of the utility model.

Claims

1. A slide rail locking device, suitable for installation on a slide rail, the slide rail comprising an outer rail and an inner rail movable relative to the outer rail, characterized in that: The slide rail latch device comprises: a base unit including an outer frame adapted to secure the outer rail, a base adapted to secure the inner rail, and an inner support secured to the base, the outer frame having an outer connecting portion adapted to secure the outer rail, and a latching portion extending from the outer connecting portion in a direction away from the outer rail, the base having a strength greater than that of the inner rail, and the inner support and the base jointly defining a movable slot; and a latch unit including a latch member pivotally arranged on the base, a driving member connected to the latch member and movably accommodated in the movable slot, and a resilient member connected to the base and the latch member, the latch member having a latching portion capable of being latched to the latching portion, and the driving member being capable of being driven to move along the movable slot to drive the latch member to pivot so as to release the latching relationship between the latching portion and the latching portion, so that the inner rail, the base and the inner support are capable of moving relative to the outer rail; wherein the latching portion has an upper plate segment connected to the outer connecting portion, and a latching segment extending downwardly from the upper plate segment and spaced apart from the outer connecting portion, the latching portion being capable of being latched to the latching segment, the latching portion further having a lower plate segment connected to the outer connecting portion and spaced apart below the upper plate segment, the upper plate segment, the latching segment and the lower plate segment jointly defining a slot, the slot having a first slot portion defined by the latching segment and the lower plate segment, and the latching segment at an opening of the first slot portion further having a guide inclined surface.

2. The slide rail clamping device according to claim 1, wherein: The latch member further includes a pivot portion pivotally arranged on the base and connected to the latching portion, and a linkage portion connected to the pivot portion and the driving member.

3. The slide rail clamping apparatus according to claim 2, wherein: The driving member has an operation portion and a driving portion connected to the operation portion, the driving portion having a bottom wall connected to the operation portion, a side wall extending from the bottom wall in a direction away from the operation portion, and a top wall connected to the side wall and spaced apart from the bottom wall, the driving portion defining an engagement slot for accommodating the linkage portion.

4. The slide rail clamping apparatus according to claim 3, wherein: The linkage portion forms an elongated linkage slot, and the side wall forms a linkage protrusion movably accommodated in the linkage slot.

5. The slide rail clamping apparatus according to claim 3, wherein: The base has a base plate portion for pivotally connecting the latch member, a guide portion connected to one side of the base plate portion away from the outer rail, and an inner engagement portion connected to one side of the base plate portion adjacent to the outer rail, the base plate portion forming an opening for the latching portion to pass through to be latched to the latching portion, the guide portion and the inner support jointly defining the movable slot, and the inner engagement portion being adapted to secure the inner rail.

6. The slide rail clamping apparatus according to claim 5, wherein: The inner support has a cover portion engaged to the base plate portion, and a movable portion connected to the cover portion, the cover portion forming an accommodation slot for accommodating the latch member, and the movable portion including a base wall and a surrounding wall extending from the base wall toward the guide portion, the surrounding wall forming a communication opening for the linkage portion to pass through, and the base wall, the surrounding wall and the guide portion jointly defining the movable slot with the opening facing downward.

7. The slide fastener device of claim 6, wherein: A surface of the side wall toward the base wall forms a guide slot extending upwardly and downwardly, and the base wall forms a guide rib extending upwardly and downwardly and extending into the guide slot.

8. The slide rail clamping apparatus according to claim 6, wherein: A surface of the guide portion toward the driving member forms a guide groove extending upwardly and downwardly, and the top wall forms a guide block extending upwardly and downwardly and extending into the guide groove.

9. The slide rail clamping apparatus according to claim 1, wherein: The slot further has a second slot portion defined by the upper plate segment and the lower plate segment, the first slot portion communicates with the second slot portion, and a width of the first slot portion extending in the up-down direction is less than a width of the second slot portion extending in the up-down direction, the second slot portion movably receives the clamping portion, and after the clamping portion is released from the clamping relationship with the clamping portion, the clamping portion can be separated from the outer frame through the first slot portion when the inner rail, the base, and the inner support move relative to the outer rail.

10. The slide rail clamping apparatus according to claim 2, wherein: The elastic member is a torsion spring and has one end fixed to the pivot portion and the other end fixed to the base, and the clamping member further has a positioning portion extending from the pivot portion toward the inner support and downwardly bent, and the positioning portion and the pivot portion jointly position a portion of the elastic member.

11. The slide rail clamping apparatus according to claim 3, wherein: A bottom wall of the driving portion forms an arc-shaped surface protruding toward the top wall, and the operation portion forms an operation surface in the form of an arc-shaped convex surface protruding downward.

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