Slide rail latch device

Abstract

A slide rail latch device is arranged on the slide rail, and the slide rail includes an outer rail, a middle rail and an inner rail. The slide rail latch device includes a base unit and a latch unit. The base unit includes an outer frame fixed to the outer rail, a base fixed to the inner rail and an inner bracket fixed to the base, the outer frame has an outer connecting portion fixed to the outer rail and a latching portion extending from the outer connecting portion away from the outer rail, and the inner bracket and the base jointly define a movable groove. The latch unit includes a latch member pivotally arranged on the base, a driving member connected to the latch member and movably accommodated in the movable groove, and an elastic member arranged between the base and the latch member, the latch member has a latching portion that can be latched in the latching portion, and the driving member can be driven to move in the movable groove to drive the latch member to pivot so that the latching portion releases the latching relationship with the latching portion, so that 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 latch device, in particular to a slide rail latch device. Background Art

[0002] An existing slide rail latch device is disposed between the inner rail and the outer rail of a slide rail to prevent the inner rail from sliding out relative to the outer rail. The slide rail is disposed in a server cabinet, the outer rail is disposed in the server cabinet, and the inner cabinet is connected to a server. The slide rail latch device includes an outer connecting frame fixed to the outer rail and a latch member pivotally disposed on the inner rail and latched to the outer connecting frame. When the latch member is latched to the outer connecting frame, the inner rail can be prevented from sliding out relative to the outer rail. When the latching relationship between the latch member and the outer connecting frame is released, the inner rail can be moved relative to the outer rail, so that the server can be removed from the server cabinet for maintenance. However, the latch member of the existing slide rail latch device is pivotally disposed on the inner rail, the inner rail is relatively long, and is made of softer steel. The latch member is prone to pivoting problems or failure to latch due to deformation of the inner rail, so there is still room for improvement. Utility Model Content

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

[0004] The slide rail clamping device of the utility model is suitable for being arranged on a slide rail, and the slide rail comprises an outer rail, a middle rail movably arranged on the outer rail, and an inner rail movably arranged on the middle rail. The slide rail clamping device comprises a base unit, comprising an outer frame suitable for being fixedly connected to the outer rail, a base suitable for being fixedly connected to the inner rail, and an inner bracket fixedly connected to the base. The outer frame has an outer connecting portion suitable for being fixedly connected to the outer rail and a clamping portion extending from the outer connecting portion away from the outer rail. The strength of the base is greater than that of the inner rail. The inner bracket and the base jointly define a movable groove; and a latch unit, including a latch member pivotally mounted on the base, a driving member connected to the latch member and movably accommodated in the movable groove, and an elastic member arranged between the base and the latch member, the latch member having a latch portion that can be latched in the engaging portion, and the driving member can be driven to move in the movable groove to drive the latch member to pivot so that the latch portion releases the latching relationship with the engaging portion, so that the inner rail, the base and the inner bracket can move relative to the outer rail.

[0005] In some implementations, the latching member further includes a pivoting portion pivotally mounted on the base and connected to the latching portion, and a linkage portion connecting the pivoting portion and the driving member.

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

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

[0008] In some embodiments, the base has a base plate portion for the latch member to be pivotally connected, a guide portion connected to a side of the base plate portion away from the outer rail, and an internal joint portion connected to a side of the base plate portion adjacent to the outer rail. The base plate portion forms an opening for the latch portion to pass through to latch on the engaging portion. The guide portion and the inner bracket jointly define the movable groove. The internal joint portion is suitable for fixing to the inner rail.

[0009] In some embodiments, the inner bracket has a cover body portion joined to the base plate portion and a movable portion connected to the cover body portion, the cover body portion forms a receiving groove for accommodating the latch member, the movable portion includes a base wall and a surrounding wall extending from the base wall toward the guide portion, the surrounding wall forms a connecting port connected to the receiving groove for the linkage portion to pass through, and the base wall, the surrounding wall and the guide portion form the movable groove with an opening facing downward.

[0010] In some implementations, a guide groove extending up and down is formed on a surface of the side wall facing the base wall, and a guide rib extending up and down is formed on the base wall to be correspondingly received in the guide groove.

[0011] In some implementations, the guide portion forms a guide groove extending up and down on a surface facing the driving member, and the top wall forms a guide block extending up and down to be correspondingly accommodated in the guide groove.

[0012] In some implementations, the engaging portion has an upper plate section connected to the external connecting portion and an engaging section extending downward from the upper plate section and spaced apart from the external connecting portion, and the latch portion can be latched in the engaging section.

[0013] In some embodiments, the locking portion further has a lower plate section connected to the external connecting portion and located at intervals below the upper plate section, the upper plate section, the locking section and the lower plate section define a groove, the groove has a first groove portion defined by the locking section and the lower plate section and a second groove portion defined by the upper plate section and the lower plate section, the first groove portion is connected to the second groove portion, and the width of the first groove portion is smaller than the width of the second groove portion, the second groove portion is used to movably accommodate the locking portion, after the locking portion releases the locking relationship with the locking portion, when the inner rail, the base and the inner bracket move relative to the outer rail, the locking portion can be separated from the outer frame through the first groove portion.

[0014] In some embodiments, the elastic member is a torsion spring and one end is fixed to the latch portion, and the other end is fixed to the base. The latch member also has a positioning portion extending from the pivot portion toward the inner bracket and bending downward. The positioning portion and the pivot portion can jointly position part of the elastic member to prevent the elastic member from displacement.

[0015] In some implementations, the bottom wall of the driving portion forms an arc-shaped surface protruding toward the top wall, and the operating portion forms an operating surface protruding downward in a spherical shape.

[0016] The utility model has at least the following effects: by pivoting the latching member on the base with higher strength instead of pivoting on the inner rail, it is possible to avoid deformation of the inner rail causing the latching member to pivot unsmoothly or even lose the function of locking with the locking portion of the outer frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a three-dimensional diagram of an embodiment of the slide rail latch device of the utility model disposed on a slide rail;

[0019] Figure 2 is a three-dimensional exploded view of the embodiment and the slide rail;

[0020] Figure 3 is a three-dimensional exploded view of the embodiment;

[0021] Figure 4 is a three-dimensional exploded view of another viewing angle of the embodiment;

[0022] Figure 5 is a rear view of an inner bracket of a base unit of the embodiment;

[0023] Figure 6 is a rear view of the embodiment, illustrating a latching portion of a latching member of a latching unit being latched with a latching section of a latching portion of an outer frame;

[0024] Figure 7 and Figure 8 It is a rear view of the embodiment, illustrating a process in which the latching portion of the latching member is driven by a driving member to pivot downward to release the latching relationship with the latching section of the latching portion. DETAILED DESCRIPTION

[0025] Before the present invention is described in detail, it should be noted that similar components are represented by the same reference numerals in the following description.

[0026] See also Figure 1 and Figure 2An embodiment of the slide rail latch device 10 of the utility model is suitable for being arranged on a slide rail 100, and the slide rail 100 is arranged on a server cabinet (not shown), and comprises an outer rail 101, a middle rail 102 movably arranged on the outer rail 101, and an inner rail 103 movably arranged on the middle rail 102, wherein the outer rail 101 is fixedly connected to the server cabinet (not shown), and the inner rail 103 is fixedly connected to a server (not shown). The slide rail latch device 10 comprises a base unit 1 and a latch unit 2.

[0027] See also Figures 2 to 4 The base unit 1 includes an outer frame 11 suitable for fixing the outer rail 101, a base 12 suitable for fixing the inner rail 103, and an inner bracket 13 fixed to the base 12. The outer frame 11 has an outer connecting portion 111 suitable for fixing the outer rail 101 and a clamping portion 112 extending from the outer connecting portion 111 away from the outer rail 101. The clamping portion 112 has an upper plate section 112a connected to the outer connecting portion 111, a clamping section 112b extending downward from the upper plate section 112a and spaced from the outer connecting portion 111, and a lower plate section 112c connected to the outer connecting portion 111 and spaced below the upper plate section 112a. The upper plate section 112a, the locking section 112b and the lower plate section 112c define a slot 113, and the slot 113 has a first slot portion 113a defined by the locking 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 connected to the second slot portion 113b, and the width of the first slot portion 113a is smaller than the width of the second slot portion 113b.

[0028] The base 12 has a base portion 121 for the latch unit 2 to be pivotally connected, a guide portion 122 connected to a side of the base portion 121 away from the outer rail 101, and an inner joint portion 123 connected to a side of the base portion 121 adjacent to the outer rail 101. The base portion 121 forms an opening 121a. The guide portion 122 forms a guide groove 122a extending up and down on the surface facing the inner bracket 13. The inner joint portion 123 is suitable for being fixed to the inner rail 103.

[0029] Matching reference Figure 5The inner bracket 13 has a cover portion 131 connected to the substrate portion 121 and a movable portion 132 connected to the cover portion 131. The cover portion 131 is connected to the substrate portion 121 through three fixing members 14, but the present invention 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, the surrounding wall 132b forms a connecting port 132c connected to the receiving groove 131a, and the base wall 132a, the surrounding wall 132b and the guide portion 122 form a movable groove 132d with an opening facing downward. The base wall 132a forms a guide rib 132a1 extending up and down.

[0030] The latch unit 2 comprises a latch member 21 pivotally mounted on the base plate portion 121 of the base 12, a driving member 22 connected to the latch member 21 and movably accommodated in the movable groove 132d, and an elastic member 23 disposed between the base 12 and the latch member 21. The latch member 21 can be accommodated in the accommodating groove 131a, and comprises a latch portion 211 that can pass through the opening 121a to latch on the engaging section 112b of the engaging portion 112 and movably accommodated in the second groove portion 113b, a pivoting portion 212 pivotally mounted on the base 12 and connected to the latch portion 211, a linkage portion 213 connected to the pivoting portion 212 and connected to the driving member 22 through the communication port 132c, and a positioning portion 214 extending from the pivoting portion 212 toward the inner bracket 13 and bending downward. The linkage portion 213 forms an elongated linkage groove 213a. The positioning portion 214 and the pivot portion 212 can jointly position a portion of the elastic member 23 to prevent the elastic member 23 from being displaced. The pivot portion 212 is pivotally mounted on the base plate portion 121 via a pivot member 24. The elastic member 23 is a torsion spring with one end fixed to the latch portion 211 and the other end fixed to the base 12.

[0031] The driving member 22 is generally in the shape of a square column and has an operating portion 221 and a driving portion 222 connected to the operating portion 221. The operating portion 221 forms an operating surface 221a protruding downward in a spherical shape. The driving portion 222 has a bottom wall 222a connected to the operating portion 221, a side wall 222b connected to the bottom wall 222a and extending away from the operating portion 221, and a top wall 222c connected to the side wall 222b and spaced from the bottom wall 222a. The driving portion 222 defines a coupling groove 223 for accommodating the linkage portion 213. The bottom wall 222a of the driving portion 222 forms an arcuate surface 222a1 protruding toward the top wall 222c. The side wall 222b forms a linkage boss 222d that can be movably accommodated in the linkage groove 213a, and the surface of the side wall 222b facing the base wall 132a forms a guide groove 222b1 that extends up and down and is accommodated by the corresponding guide rib 132a1. The top wall 222c forms a guide block 222c1 that extends up and down and is correspondingly accommodated in the guide groove 122a. With the guide rib 132a1 correspondingly accommodated in the guide groove 222b1, and the guide block 222c1 correspondingly accommodated in the guide groove 122a, the driving member 22 can be guided to move up and down smoothly in the movable groove 132d.

[0032] See also Figure 1 , Figures 6 to 8 The following briefly introduces the operation process of the slide rail latch device 10 of the utility model: when the driving member 22 is not operated, the latch portion 211 of the latch member 21 is latched in the latch section 112b of the latch portion 112 to prevent the inner rail 103 from sliding out relative to the outer rail 101, such as Figure 6 Next, when an external object (not shown) moves toward the driving member 22 in the length direction of the slide rail 100 and abuts the operating surface 221a, because the operating surface 221a protrudes downward and is spherical, the external object can abut the driving member 22 when moving, so that the driving member 22 can be driven to move upward in the movable groove 132d, and the linkage protrusion 222d of the driving portion 222 moves in the linkage groove 213a to drive the linkage portion 213 of the latching member 21 to move upward, so that the latching member 21 can be driven to pivot, so that the latching portion 211 moves downward in the second groove portion 113b to release the latching relationship with the engaging portion 112, as shown in FIG. Figure 7 and Figure 8After the latching portion 211 is released from the latching relationship with the latching section 112b of the latching portion 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 latching portion 211 can be separated from the outer frame 11 through the first groove 113a, thereby the server (not shown) fixed to the inner rail 103 can be removed from the server cabinet (not shown) for maintenance. It should be noted that the design of the driving member 22 driving the linkage portion 213 of the latch 21 to move upward by the linkage protrusion 222d of the driving portion 222 moving in the linkage groove 213a can improve the matching tolerance of the latch 21 and the driving member 22, because even if the size of the mass-produced latch 21 is inconsistent, the driving member 22 can still drive the linkage portion 213 to move upward and pivot the latch 21 through the design of the long linkage groove 213a and the linkage protrusion 222d. And through the design of the arc surface 222a1 of the bottom wall 222a, the bottom wall 222a will not interfere with the linkage portion 213 when moving upward.

[0033] In summary, the slide rail latch device 10 of the present invention can prevent the inner rail 103 from deforming and causing the latch member 21 to pivotally rotate smoothly or even lose the function of latching with the latching portion 112 of the outer frame 11, by pivoting the latch member 21 on the base 12 with higher strength instead of pivoting on the inner rail 103, so as to achieve the purpose of the present invention.

[0034] The above description is only an embodiment of the present utility model, and should not be used to limit the scope of the present utility model. All simple equivalent changes and modifications made according to the claims and description of the present utility model are still within the scope of the present utility model.

Claims

1. A slide rail latch device, suitable for being arranged on a slide rail, the slide rail comprising an outer rail, a middle rail movably arranged on the outer rail, and an inner rail movably arranged on the middle rail, characterized in that: The slide rail latch device comprises: A base unit, comprising an outer frame suitable for fixing to the outer rail, a base suitable for fixing to the inner rail, and an inner bracket fixed to the base, wherein the outer frame has an outer connecting portion suitable for fixing to the outer rail and a clamping portion extending from the outer connecting portion away from the outer rail, the strength of the base is greater than that of the inner rail, and the inner bracket and the base jointly define a movable groove; and The latch unit includes a latch member pivotally mounted on the base, a driving member connected to the latch member and movably accommodated in the movable groove, and an elastic member arranged between the base and the latch member. The latch member has a latch portion that can be latched in the engaging portion. The driving member can be driven to move in the movable groove to drive the latch member to pivot so that the latch portion releases the latching relationship with the engaging portion, so that the inner rail, the base and the inner bracket can move relative to the outer rail.

2. The slide rail latch device according to claim 1, characterized in that: The latching member further comprises a pivoting portion pivotally arranged on the base and connected to the latching portion, and a linkage portion connecting the pivoting portion and the driving member.

3. The slide rail latch device according to claim 2, characterized in that: The driving member has an operating portion and a driving portion connected to the operating portion. The driving portion has a bottom wall connected to the operating portion, a side wall connected to the bottom wall and extending away from the operating portion, and a top wall connected to the side wall and spaced apart from the bottom wall. The driving portion defines a coupling groove for accommodating the linkage portion.

4. The slide rail latch device according to claim 3, characterized in that: The linkage portion forms an elongated linkage groove, and the side wall forms a linkage protrusion movably accommodated in the linkage groove.

5. The slide rail latch device according to claim 3, characterized in that: The base has a base plate portion for the latch member to be pivotally connected, a guide portion connected to a side of the base plate portion away from the outer rail, and an inner joint portion connected to a side of the base plate portion adjacent to the outer rail. The base plate portion forms an opening for the latch portion to pass through and latch on the engaging portion. The guide portion and the inner bracket jointly define the movable groove. The inner joint portion is suitable for being fixedly connected to the inner rail.

6. The slide rail latch device according to claim 5, characterized in that: The inner bracket has a cover body portion joined to the base plate portion and a movable portion connected to the cover body portion, the cover body portion forms a receiving groove for accommodating the latch member, the movable portion includes a base wall and a surrounding wall extending from the base wall toward the guide portion, the surrounding wall forms a connecting port connected to the receiving groove for the linkage portion to pass through, and the base wall, the surrounding wall and the guide portion form the movable groove with an opening facing downward.

7. The slide rail latch device according to claim 6, characterized in that: A guide groove extending up and down is formed on the surface of the side wall facing the base wall, and a guide rib extending up and down and correspondingly accommodated in the guide groove is formed on the base wall.

8. The slide rail latch device according to claim 6, characterized in that: The surface of the guide portion facing the driving member forms a guide groove extending up and down, and the top wall forms a guide block extending up and down and correspondingly accommodated in the guide groove.

9. The slide rail latch device according to claim 1, characterized in that: The clamping portion comprises an upper plate section connected to the outer connecting portion and a clamping section extending downward from the upper plate section and spaced apart from the outer connecting portion, and the clamping portion can be clamped on the clamping section.

10. The slide rail latch device according to claim 9, characterized in that: The engaging portion also has a lower plate section connected to the external connecting portion and located at intervals below the upper plate section. The upper plate section, the engaging section and the lower plate section define a groove, and the groove has a first groove portion defined by the engaging section and the lower plate section and a second groove portion defined by the upper plate section and the lower plate section. The first groove portion is connected to the second groove portion, and the width of the first groove portion is smaller than the width of the second groove portion. The second groove portion is used to movably accommodate the latching portion. After the latching portion releases the latching relationship with the engaging portion, when the inner rail, the base and the inner bracket move relative to the outer rail, the latching portion can be separated from the outer frame through the first groove portion.

11. The slide rail latch device according to claim 2, characterized in that: The elastic member is a torsion spring and one end of the elastic member is fixed to the latch portion and the other end is fixed to the base. The latch portion also has a positioning portion extending from the pivot portion toward the inner bracket and bending downward. The positioning portion and the pivot portion can jointly position part of the elastic member to prevent the elastic member from displacement.

12. The slide rail latch device according to claim 3, characterized in that: The bottom wall of the driving part forms an arc-shaped surface protruding toward the top wall, and the operating part forms an operating surface protruding downward in a spherical shape.

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