Slide rail rear bracket locking device
By designing a locking device for the rear support bracket of the slide rail, and utilizing the cooperation of pins, connecting rods and top plates, the problem of low installation efficiency of server rack slide rails is solved, enabling rapid installation and stable fixation by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI JINGMEI PRECISION SLIDE
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-03
AI Technical Summary
The installation efficiency of existing server rack rails is low, requiring multiple people to work together to install them, and the rear end of the rails is difficult to securely fix.
A sliding rail rear bracket locking device was designed, including a bracket body, a locking assembly and an elastic element. Through the cooperation of pins, connecting rods and top plates, the sliding rail can be easily installed and stably fixed.
It enables quick installation of the slide rails by a single person, improving installation efficiency, and enhances the stability and fixation effect between the slide rails and the cabinet through elastic components and locking pin structures.
Smart Images

Figure CN224460288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slide rail technology, and in particular to a slide rail rear bracket locking device. Background Technology
[0002] As the length of server rack rails continues to increase, the installation difficulty of the rails gradually increases. During installation, it often requires two installers, one at the front and one at the back, to connect and lock the front and rear ends of the rails to the rack using fastening screws and nuts, resulting in low installation efficiency.
[0003] Currently, a server slide rail bracket with detachable claw hooks has emerged in this field, such as the one described in document number CN207766734U. The two ends of the spring with claw hooks are screwed to the bracket body. An elastic element is set between the spring and the bracket body. By rotating and locking the claw hook spring, the rack column is snapped into the space between the claw hook and the column bracket body.
[0004] This application aims to provide a sliding rail rear bracket locking device with different structures for server racks, in order to meet the need to restrict the forward and backward movement of the sliding rail when the rear end of the sliding rail is installed on the server rack.
[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model discloses a sliding rail rear bracket locking device to meet the aforementioned requirements.
[0007] The technical solution adopted in this utility model is as follows:
[0008] A sliding rail rear bracket locking device includes: a bracket body; a locking assembly, the locking assembly including: a top plate with two first oblong holes, one of which is located at the front end of the other; two connecting rods located at the lower ends of both sides of the top plate, the front ends of the connecting rods protruding above a portion of the front end of the bracket body and having hooks; two pins passing through the two first oblong holes and fixed to the bracket body, the width of the first oblong holes being smaller than the outer diameter of the pin head; and an elastic element sleeved on the pin located at the front end, the first end of which is connected to the top plate and the second end of which is connected to the upper end of the bracket body; wherein, in the locked state, the front end of the bracket body, the connecting rods, and the hooks form a locking groove.
[0009] A further technical solution is that the first waist-shaped hole has two sets, which are spaced apart along the width direction of the bracket body, and the pin also has two sets.
[0010] A further technical solution is that a locking hole is opened in the middle of the support body along its length on the top plate, and a locking pin is provided at the upper end of the support body. When in the locked state, the locking pin passes through the locking hole, the length of the locking hole is greater than the length of the locking pin, and the width of the locking hole is the same as the width of the locking pin.
[0011] A further technical solution is to provide a connecting piece between the front sides of the upper ends of the two connecting rods.
[0012] A further technical solution is that the connecting piece protrudes downwards.
[0013] A further technical solution is that the top plate, connecting rod, and connecting piece are integrally bent and formed.
[0014] A further technical solution is that the connection between the top plate and the connecting rod is an arc surface, and the connection between the connecting rod and the connecting piece is an arc surface.
[0015] A further technical solution is that the main body of the support also includes: a half-frame, formed by bending the front end of the main body of the support; and two pins, with the rear end disposed in the half-frame and the front end passing through and protruding from the front end of the half-frame.
[0016] A further technical solution is as follows: there is a gap between the lower rear end of the semi-frame and the upper end of the support body; a sliding plate is provided at the rear end of the pin; the sliding plate passes through the gap and extends out of the rear end of the semi-frame; two second oblong holes are spaced apart on the sliding plate along the width direction of the support body, and the second oblong holes are parallel to the length direction of the support body; the pin located at the front end passes through the second oblong holes; an extension is provided on the outer side of the pin at the upper end of the sliding plate; the first end of the elastic element is connected to the top plate, and the second end is connected to the upper end of the extension; wherein, the pin can slide in or out of the front end of the semi-frame in the front-back direction, and drive the sliding plate to slide along the upper surface of the support body.
[0017] The beneficial effects of this utility model embodiment are as follows:
[0018] (I) In the slide rail rear bracket locking device of this utility model embodiment, when the slide rail needs to be installed on the cabinet, the two first oblong holes slide relative to the pins, and the connecting rod and the top plate rotate and open relative to the two pins. The rear bracket locking device is installed into the cabinet column, and the elastic element is squeezed by the top plate to generate elastic force. The elastic force of the elastic element drives the connecting rod and the top plate to reset, so that the cabinet column is locked into the slot formed by the hook, the connecting rod and the front end of the bracket, which restricts the rear bracket locking device from sliding back and forth relative to the cabinet column, thus realizing the installation of the rear bracket locking device. The structure is simple and easy to use.
[0019] (ii) Furthermore, a locking hole is opened in the middle of the top plate along the length of the main body of the bracket, and a locking pin is set at the upper end of the main body of the bracket. When in the locked state, the locking pin passes through the locking hole. The length of the locking hole is greater than the length of the locking pin, and the width of the locking hole is the same as the width of the locking pin, so as to ensure that the locking pin can rotate relative to the locking hole while restricting the main body of the bracket from shaking relative to the locking assembly, thereby improving stability. Attached Figure Description
[0020] Figure 1 This is an isometric view of the sliding rail rear bracket locking device of this utility model.
[0021] Figure 2 This is an exploded view of the sliding rail rear bracket locking device of this utility model.
[0022] Figure 3 This is a longitudinal sectional view of the slide rail rear bracket locking device of this utility model.
[0023] Figure 4 This is an isometric view of the locking assembly in the open state of the sliding rail rear bracket locking device of this utility model.
[0024] Figure 5 This is an isometric view of the locking assembly in the locked state of the slide rail rear bracket locking device of this utility model.
[0025] In the picture:
[0026] 1. Bracket body; 11. Semi-frame; 12. Pin; 13. Locking pin; 14. Slide plate; 141. Second oblong hole; 2. Locking assembly; 21. Top plate; 211. Locking hole; 212. Second groove; 213. First oblong hole; 22. Connecting rod; 221. Hook; 222. First groove; 23. Connecting piece; 24. Pin; 241. Extension; 25. Elastic element; 3. Cabinet upright; 31. Positioning hole. Detailed Implementation
[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0028] Example:
[0029] This embodiment discloses a sliding rail rear bracket locking device.
[0030] The sliding rail rear bracket locking device includes a bracket body 1 and a locking assembly 2.
[0031] exist Figure 1In the embodiments shown in the other accompanying drawings, the direction pointed to by arrow X is the front end of the support body 1, the opposite direction pointed to by arrow X is the rear end of the support body 1, the direction pointed to by arrow Y is the upper end of the support body 1, and the opposite direction pointed to by arrow Y is the lower end of the support body 1.
[0032] like Figure 1 and Figure 2 As shown, the locking assembly 2 includes a top plate 21, connecting rods 22, pins 24, and elastic elements 25. The top plate 21 has two first oblong holes 213, one of which is located at the front end of the other. Two connecting rods 22 are located at the lower ends of both sides of the top plate 21, with hooks 221 protruding from the upper side of a portion of the front end of the support body 1. Specifically, a first groove 222 is formed at the upper end of the connecting rod 22, and the hook 221 is formed at the front end of the connecting rod 22 located in the first groove 222. Two pins 24 are fixed to the support body 1 by passing through the two first oblong holes 213 respectively. The width of the first oblong holes 213 is smaller than the outer diameter of the pin head of the pin 24 to prevent the top plate 21 from detaching from the pins 24. The two pins 24, in conjunction with the two first oblong holes 213, ensure that the top plate 21 rotates in a vertical plane parallel to the length direction of the support body 1. The elastic element 25 is fitted onto the pin 24 located at the front end, with its first end connected to the top plate 21 and its second end connected to the upper end of the bracket body 1. When locked, the front end of the bracket body 1, the connecting rod 22, and the hook 221 form a locking groove.
[0033] like Figure 1 and Figure 2 As shown, preferably, the first waist-shaped hole 213 has two sets, which are spaced apart along the width direction of the support body 1, and the pin 24 also has two sets, which further improves the stability and load-bearing capacity of the top plate 21 when rotating relative to the two pins 24.
[0034] like Figure 2 As shown, further, a locking hole 211 is formed in the middle of the top plate 21 along the length of the bracket body 1. A locking pin 13 is provided at the upper end of the bracket body 1. When in the locked state, the locking pin 13 passes through the locking hole 211. The length of the locking hole 211 is greater than the length of the locking pin 13, and the width of the locking hole 211 is the same as the width of the locking pin 13. This ensures that the locking pin 13 can rotate relative to the locking hole 211 while preventing the bracket body 1 from shaking relative to the locking assembly 2, thereby improving stability. For example, the locking pin 13 is bent into shape on the bracket body 1 and is perpendicular to the surface of the bracket body 1.
[0035] like Figure 2As shown, a connecting piece 23 is further provided between the front sides of the upper ends of the two connecting rods 22. Exemplarily, the top plate 21, connecting rods 22, and connecting piece 23 are integrally bent into shape. The connection between the top plate 21 and the connecting rod 22 is an arc surface, and the connection between the connecting rod 22 and the connecting piece 23 is also an arc surface, facilitating installation and production while preventing collisions with the cabinet and operators. Preferably, the connecting piece 23 protrudes downwards, improving the structural strength of the connecting rod 22 while also facilitating the operator's movement of the connecting rod 22.
[0036] like Figure 3 As shown, further, the upper front side of the support body 1 is bent to form a semi-frame 11, which is located at the upper end of the support body 1 with its opening facing downward. The front end of the semi-frame 11, the connecting rod 22, and the hook 221 form a slot. The rear end of the pin 12 is disposed inside the semi-frame 11, and the front end of the pin 12 passes through and protrudes from the front end of the semi-frame 11.
[0037] like Figure 2 and Figure 3 As shown, there is a gap between the lower rear end of the semi-frame 11 and the upper end of the support body 1. A sliding plate 14 is provided at the rear end of the pin 12. The sliding plate 14 passes through the gap and extends out of the rear end of the semi-frame 11. Two second oblong holes 141 are spaced apart on the sliding plate 14 along the width direction of the support body 1. The second oblong holes 141 are parallel to the length direction of the support body 1. The lower end of the pin 24 located at the front end passes through the second oblong holes 141. An extension 241 is provided on the outer side of the pin 24 at the upper end of the sliding plate 14. The outer diameter of the extension 241 is larger than the width of the second oblong holes 141. The first end of the elastic member 25 is connected to the top plate 21, and the second end is connected to the upper end of the extension 241. The pin 12 can slide in or out of the opening at the front end of the semi-frame 11 in the front-back direction, and drive the sliding plate 14 to slide along the upper surface of the support body 1. For example, the pin 12 is a hollow square cylinder. The extension 241 of the pin 24 restricts the slide plate 14 from tilting upwards, ensuring that the slide plate 14 can slide along the upper surface of the support body 1, reducing the friction between the slide plate 14 and the rear end of the semi-frame 11, and improving the sliding stability and service life of the pin 12 and the slide plate 14. The rear end of the slide plate 14 is connected to the rear end of the semi-frame 11 by an elastic member 25, which facilitates the reset of the pin 12.
[0038] like Figure 2 As shown, a second groove 212 is further provided at the front end of the top plate 21 to reduce material usage and lower costs.
[0039] In this embodiment, when the slide rail needs to be installed on the rack, such as Figure 4As shown, by moving the connecting piece 23, the connecting rod 22 and the top plate 21 rotate relative to the two pins 24, exposing the semi-frame 11 at the front end of the bracket body 1 and the two pins 12. The rear bracket locking device is then installed into the cabinet column 3, allowing the two pins 12 to pass through the positioning holes 31 of the cabinet, thus positioning the rear bracket locking device. At this time, the elastic element 25 is compressed by the top plate 21, generating elastic force. Figure 5 As shown, when the connecting piece 23 is released, the elastic force of the elastic element 25 drives the connecting rod 22 and the top plate 21 to reset, so that the cabinet column 3 is inserted into the slot formed by the hook part 221, the connecting rod 22 and the half frame 11, which restricts the rear bracket locking device from sliding back and forth relative to the cabinet column 3, thus realizing the installation of the rear bracket locking device. The structure is simple and easy to use.
[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A sliding rail rear bracket locking device, characterized in that: The sliding rail rear bracket locking device includes: Support body; The locking assembly includes: A top plate, wherein two first oblong holes are formed on the top plate, and one of the first oblong holes is located at the front end of the other first oblong hole; Two connecting rods are provided at the lower ends of both sides of the top plate, and the front end of the connecting rod protrudes from the upper side of a part of the front end of the support body and is provided with a hook. Two pins are provided, each passing through one of the two first oblong holes and fixed to the bracket body. The width of the first oblong hole is smaller than the outer diameter of the pin head. An elastic element is fitted onto the pin located at the front end, with its first end connected to the top plate and its second end connected to the upper end of the bracket body; When in the locked state, the front end of the bracket body, the connecting rod, and the hook form a slot.
2. The rear slide bracket lock apparatus of claim 1, wherein: The first waist-shaped hole has two sets, which are spaced apart along the width direction of the bracket body, and the pin also has two sets.
3. The rear slide bracket lock apparatus of claim 2, wherein: A locking hole is provided in the middle of the support body along its length on the top plate. A locking pin is provided at the upper end of the support body. When in the locked state, the locking pin passes through the locking hole. The length of the locking hole is greater than the length of the locking pin, and the width of the locking hole is the same as the width of the locking pin.
4. The rear slide lock arrangement of claim 1, wherein: A connecting piece is provided between the front sides of the upper ends of the two connecting rods.
5. The rear slide bracket lock apparatus of claim 4, wherein: The connecting piece protrudes downwards.
6. The rear slide lock arrangement of claim 4, wherein: The top plate, connecting rod, and connecting piece are integrally bent into shape.
7. The rear slide lock arrangement of claim 6, wherein: The connection between the top plate and the connecting rod is an arc surface, and the connection between the connecting rod and the connecting piece is an arc surface.
8. The rear slide lock arrangement of claim 1, wherein: The support body also includes: The semi-frame is formed by bending the front end of the main support body; The pin has two parts, with its rear end located within the half-frame and its front end passing through and protruding from the front end of the half-frame.
9. The rear slide lock arrangement of claim 8, wherein: There is a gap between the lower rear end of the semi-frame and the upper end of the support body. A sliding plate is provided at the rear end of the pin. The sliding plate passes through the gap and extends out of the rear end of the semi-frame. Two second oblong holes are spaced apart on the sliding plate along the width direction of the support body. The second oblong holes are parallel to the length direction of the support body. The pin located at the front end passes through the second oblong holes. An extension is provided around the outside of the pin at the upper end of the sliding plate. The first end of the elastic member is connected to the top plate, and the second end is connected to the upper end of the extension. The pin can slide in or out of the front end of the half-frame in the front-back direction, and drive the slide plate to slide along the upper surface of the support body.