Slide rail front support lock device

By designing a front bracket locking device for the slide rail, and utilizing the cooperation of pins and elastic elements, the problem of high friction between the slide rail locking spring and the screw is solved, thus achieving easy installation and improved stability of the slide rail.

CN224473588UActive Publication Date: 2026-07-07WUXI JINGMEI PRECISION SLIDE

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
2026-07-07

AI Technical Summary

Technical Problem

In existing technology, the locking spring of the slide rail has significant friction with the screw surface when it slides, which makes installation inconvenient.

Method used

A sliding rail front bracket locking device was designed, including a bracket body, a locking assembly, a pin, and an elastic element. The locking assembly can be rotated and engaged through the cooperation of the pin and the elastic element, simplifying the installation process.

Benefits of technology

This design simplifies the installation of the slide rails, improves installation efficiency, reduces friction, and enhances the stability and lifespan of the locking components.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224473588U_ABST
    Figure CN224473588U_ABST
Patent Text Reader

Abstract

The utility model relates to a slide rail front support lock device, include: support main part, open first through -hole, lock catch subassembly, lock catch subassembly includes: top plate, along the support main part length direction interval and open two first waist type holes, buckle part, the rear end passes through first through -hole and connects top plate front end, and the front end protrudes from support main body front end, pin, have two, respectively pass through two first waist type holes and fix on the support main part, and the width of first waist type hole is less than the outer diameter of pin head, first elastic part, the sleeve is located on the pin of front end, and first end connects top plate lower extreme, and second end connects support main body upper extreme. Lock catch subassembly rotates relative to support main body and exposes support main body front end, then resets lock catch subassembly through elastic part to with the cabinet stand post buckle into the clamping groove surrounded by buckle part and support main body front end, limit front support lock device relative to cabinet stand post back and forth slide, realize the installation of front support lock device, simple structure, convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of slide rail technology, and in particular to a slide rail front bracket locking device. Background Technology

[0002] With the continuous development of IoT big data and cloud storage technologies, server racks used to house servers are becoming increasingly larger. This has led to a continuous increase in the length and weight of the slide rails used in server racks. During installation, it is often necessary for two installers to connect and lock the front and rear ends of the slide rails to the rack from the front and rear of the rack respectively using fastening screws and nuts. This increases the difficulty of installing the slide rails and reduces installation efficiency.

[0003] Chinese utility model patent CN203814105U discloses a tool-free installation method for a front bracket, including a locking spring located near the end of the front bracket. One end of the locking spring is connected to the front bracket by a pair of screws and a spring, while the other end is bent into a locking plate protruding from the end of the front bracket. One end of the locking spring is connected to surface A of the front bracket by a pair of screws and a spring, while the locking plate at the other end passes through a spring clearance hole in the front bracket and is located on surface B of the front bracket. In this design, the locking spring needs to slide up and down along the screws to engage or disengage the locking plate with the cabinet column. When the operator applies force to the locking spring, it is easy for the spring to deflect, resulting in significant friction between the locking elasticity and the screw surface, making it inconvenient to use.

[0004] 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

[0005] To address the shortcomings of existing technologies, this utility model discloses a sliding rail front bracket locking device to solve the problem of excessive friction between the locking spring and the screw surface during sliding, which leads to inconvenience in use.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A sliding rail front bracket locking device includes: a bracket body with a first through hole; a locking assembly including: a top plate with two first oblong holes spaced apart along the length of the bracket body; a buckle portion with its rear end passing through the first through hole and connected to the front end of the top plate, and its front end protruding from the front end of the bracket body; two pins, each passing through one of 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 a first elastic element sleeved on the pins located at the front end, with its first end connected to the lower end of the top plate and its second end connected to the upper end of the bracket body; wherein, in the locked state, the front end of the bracket body and the buckle portion form a locking groove.

[0008] A further technical solution is that a half-frame is provided on the front side of the upper end of the support body, and a second through hole is opened at the rear end of the half-frame, with the position of the first through hole corresponding to the half-frame; the front end of the top plate passes through the second through hole and extends into the half-frame.

[0009] A further technical solution is that the main body of the bracket also includes: two pins, which are positioned corresponding to the two sides of the buckle, with the rear end set in the half frame and the front end passing through and protruding from the front end of the half frame.

[0010] 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 1; 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 1; the second oblong holes are parallel to the length direction of the support body; two rivets pass through the second oblong holes and are fixed to the support body 1; the rear end of the sliding plate and the rear end of the semi-frame are connected by a second elastic element; the lower end of the pin located at the front end is fixed to the sliding plate; the first end of the first elastic element is connected to the lower end of the top plate, and the second end is connected to the upper end of the sliding plate; 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, and drive the pin located at the front end to slide along the first oblong hole.

[0011] A further technical solution is that the buckle includes: a first plate, which is vertically arranged; a second plate, which is horizontally arranged and whose front end is connected to the lower end of the first plate; and a third plate, which is inclined through the first through hole and connected between the rear end of the second plate and the front end of the top plate, with the upper end of the third plate located on the rear side of the lower end; when the buckle assembly is in the locked position, the second plate abuts against the lower end of the bracket body.

[0012] A further technical solution is that a hook is provided at the front end of the buckle.

[0013] A further technical solution is that the top plate, buckle, and hook are integrally bent and formed.

[0014] A further technical solution is that the width of the buckle is greater than the width of the top plate, and the width of the buckle is greater than the width of the second through hole.

[0015] The beneficial effects of this utility model embodiment are as follows:

[0016] (I) The slide rail front bracket locking device of this utility model embodiment, when the slide rail needs to be installed on the rack, uses two pins passing through two first oblong holes on the top rod of the locking assembly, and the buckle passing through the first through hole of the bracket body. The elastic element is sleeved on the front pin and connected between the top rod and the bracket body. The locking assembly rotates relative to the bracket body and exposes the front end of the bracket body. The front bracket locking device is installed into the rack column. The elastic element is squeezed by the top plate to generate elastic force. Then, the elastic force of the elastic element resets the locking assembly to lock the rack column into the slot formed by the buckle and the front end of the bracket body, restricting the front bracket locking device from sliding back and forth relative to the rack column, thus realizing the installation of the front bracket locking device. The structure is simple and easy to use.

[0017] (ii) Furthermore, a pin is also provided within the semi-frame, with its rear end connected to the slide plate. The lower end of the pin located at the front end is fixed to the slide plate, and the first elastic element is connected between the top plate and the slide plate. The pin can slide in or out of the front end of the semi-frame in the front-back direction, and drive the slide plate to slide along the upper surface of the support body, as well as drive the pin located at the front end to slide along the first oblong hole. This avoids the need for the slide plate to avoid the pin, ensuring the strength of the slide plate and the stability of the locking assembly during rotation. Attached Figure Description

[0018] Figure 1 This is an exploded view of the slide rail front bracket locking device of this utility model.

[0019] Figure 2 This is a cross-sectional view of the locking assembly in the sliding rail front bracket locking device of this utility model when it is in the open position.

[0020] Figure 3 This diagram shows the usage state of the locking assembly in the open position of the sliding rail front bracket locking device of this utility model.

[0021] Figure 4 This is a cross-sectional view of the locking assembly in the front support locking device of the slide rail of this utility model when it is in the locked position.

[0022] Figure 5 This diagram shows the usage state of the locking assembly in the locked position of the slide rail front bracket locking device of this utility model.

[0023] In the picture:

[0024] 1. Bracket body; 11. Half frame; 111. Second through hole; 12. First through hole; 2. Locking assembly; 21. Top plate; 211. First waist-shaped hole; 22. Buckle; 221. First plate; 222. Second plate; 223. Third plate; 23. Hook; 3. Pin; 4. First elastic element; 5. Pin body; 51. Slide plate; 511. Second waist-shaped hole; 512. Rivet; 513. Second elastic element; 6. Cabinet upright; 61. Positioning hole. Detailed Implementation

[0025] 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.

[0026] Example:

[0027] This embodiment discloses a front bracket locking device for the slide rail.

[0028] like Figure 1 As shown, the sliding rail front bracket locking device includes a bracket body 1, a locking assembly 2, a pin 3, and a first elastic element 4.

[0029] exist Figure 1 In 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.

[0030] The main body 1 of the bracket has a first through hole 12.

[0031] The locking assembly 2 includes a top plate 21 and a buckle 22. Two first oblong holes 211 are spaced apart along the length of the bracket body 1 on the top plate 21. The rear end of the buckle 22 passes through the first through hole 12 and connects to the front end of the top plate 21, while the front end protrudes beyond the front end of the bracket body 1. Figure 2 and Figure 4 As shown, exemplarily, the buckle 22 includes a first plate 221, a second plate 222, and a third plate 223. The first plate 221 is vertically arranged. The second plate 222 is horizontally arranged, with its front end connected to the lower end of the first plate 221. The third plate 223 obliquely passes through the first through hole 12 and connects between the rear end of the second plate 222 and the front end of the top plate 21, with the upper end of the third plate 223 located behind the lower end. When the buckle assembly 2 is in the locked position, the second plate 222 abuts against the lower end of the bracket body 1.

[0032] Two pins 3 are provided, each passing through a first oblong hole 211 and fixed to the bracket body 1. The width of the first oblong hole 211 is smaller than the outer diameter of the pin head. A first elastic element 4 is fitted onto the pin 3 located at the front end, with its first end connected to the lower end of the top plate 21 and its second end connected to the upper end of the bracket body 1. Specifically, the pin 3 located at the rear end has a head to prevent the top plate 21 from detaching from the pin 3. The pin 3 located at the front end does not have a head, facilitating the installation of the first elastic element 4.

[0033] When locked, the front end of the bracket body 1 and the buckle 22 form a slot.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, further, a semi-frame 11 is provided on the front side of the upper end of the bracket body 1, and a second through hole 111 is opened at the rear end of the semi-frame 11. The position of the first through hole 12 corresponds to the semi-frame 11. The front end of the top plate 21 passes through the second through hole 111 and extends into the semi-frame 11. The bracket body 1 also includes two pins 5, which are located on both sides of the buckle 22. The rear end of the pins 5 is located inside the semi-frame 11, and the front end passes through and protrudes from the front end of the semi-frame 11. For example, the semi-frame 11 is formed by bending the front end of the bracket body 1 backward, and the two sides of the semi-frame 11 are through and the openings face downward. Preferably, the width of the buckle 22 is greater than the width of the top plate 21, and the width of the buckle 22 is greater than the width of the second through hole 111, which saves the cost of the locking assembly 2 and prevents the buckle 22 from coming off from the rear end of the semi-frame 11.

[0035] like Figure 2 and Figure 4As shown, further, 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 51 is provided at the rear end of the pin 5. The sliding plate 51 passes through the gap and extends beyond the rear end of the semi-frame 11. Two second oblong holes 511 are spaced apart on the sliding plate 51 along the width direction of the support body 1. The second oblong holes 511 are parallel to the length direction of the support body 1. Two rivets 512 pass through the second oblong holes 511 and are fixed to the support body 1. The two rivets 512 restrict the sliding plate 51 and the pin 5 from sliding in the front-back direction, and at the same time restrict the sliding plate 51 from tilting upward, reducing the friction between the sliding plate 51 and the rear end of the semi-frame 11, and improving the sliding stability and service life of the pin 5 and the sliding plate 51. The rear end of the sliding plate 51 is connected to the rear end of the semi-frame 11 by a second elastic member 513. The second elastic member 513 provides the elastic force required for the pin 5 and the sliding plate 51 to return to their original position. The lower end of the pin 3 located at the front end is fixed to the sliding plate 51. The first end of the first elastic member 4 is connected to the lower end of the top plate 21, and the second end is connected to the upper end of the sliding plate 51. Among them, the pin 5 can slide in or out of the front end of the half frame 11 in the front-back direction, and drive the slide plate 51 to slide along the upper surface of the bracket body 1, and drive the pin 3 located at the front end to slide along the first waist-shaped hole 211, thus avoiding the design of the slide plate 51 needing to avoid the pin 3, ensuring the strength of the slide plate 51 and the stability of the locking assembly 2 when rotating.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, furthermore, a hook 23 is provided at the front end of the buckle 22. The hook 23 is semi-frame shaped, running vertically through the body and with its opening facing the center of the bracket body 1, making it easy for the operator to move the locking assembly 2. Specifically, the top plate 21, buckle 22, and hook 23 are integrally bent and formed, which facilitates the design and production of the locking assembly 2.

[0037] In this embodiment, during installation, as follows: Figure 2 and Figure 3 As shown, when the locking assembly 2 is moved, the two first oblong holes 211 slide relative to the pins 3, the top plate 21 slides relative to the second through hole 111, and the buckle 22 slides relative to the first through hole 12, causing the locking assembly 2 to rotate counterclockwise relative to the bracket body 1 in the vertical plane, exposing the semi-frame 11 at the front end of the bracket body 1 and the two pins 5. The front bracket locking device is installed inside the cabinet column 6, and the two pins 5 pass through the positioning holes 61 of the cabinet column 6 to achieve the positioning of the front bracket locking device. At this time, the first elastic element 4 is squeezed by the top plate 21 to generate elastic force. Figure 4 and Figure 5 As shown, when the locking assembly 2 is released, the elastic force of the first elastic element 4 pushes the locking assembly 2 to rotate clockwise, causing the cabinet column 6 to be inserted into the slot formed by the buckle part 22 and the front end of the half frame 11, thus restricting the front bracket locking device from sliding back and forth relative to the cabinet column 6, thereby realizing the installation of the front bracket locking device. The structure is simple and easy to use.

[0038] 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 front bracket locking device, characterized in that, The sliding rail front bracket locking device includes: The main body of the bracket has a first through hole; The locking assembly includes: The top plate has two first waist-shaped holes spaced apart along the length of the main body of the support; The buckle portion passes through the first through hole at its rear end and connects to the front end of the top plate, while the front end protrudes from the front end of the bracket body. Two pins are provided, which pass through the two first oblong holes and are fixed to the bracket body. The width of the first oblong hole is smaller than the outer diameter of the pin head. The first elastic element is sleeved on the pin located at the front end, with the first end connected to the lower end of the top plate and the second end connected to the upper end of the bracket body; When in the locked state, the front end of the bracket body and the buckle form a slot.

2. The sliding rail front bracket locking device according to claim 1, characterized in that: A half-frame is provided on the front side of the upper end of the main body of the bracket, and a second through hole is opened at the rear end of the half-frame. The position of the first through hole corresponds to the half-frame. The front end of the top plate passes through the second through hole and extends into the half-frame.

3. The sliding rail front bracket locking device according to claim 2, characterized in that, The main body of the support also includes: The pin has two parts, which are positioned corresponding to the two sides of the buckle. The rear end is located in the half frame, and the front end passes through and protrudes from the front end of the half frame.

4. The sliding rail front bracket locking device according to claim 3, characterized in that: 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. Two rivets pass through the second oblong holes and are fixed to the support body. The rear end of the sliding plate and the rear end of the semi-frame are connected by a second elastic member. The lower end of the pin located at the front end is fixed to the sliding plate. The first end of the first elastic member is connected to the lower end of the top plate, and the second end is connected to the upper end of the sliding plate. 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 bracket body, and drive the pin located at the front end to slide along the first waist-shaped hole.

5. The sliding rail front bracket locking device according to claim 1, characterized in that, The buckle includes: The first board is set vertically; The second plate is horizontally positioned and its front end is connected to the lower end of the first plate; The third plate is inclined through the first through hole and connected between the rear end of the second plate and the front end of the top plate, with the upper end of the third plate located on the rear side of the lower end; When the locking assembly is in the locked position, the second plate abuts against the lower end of the bracket body.

6. The sliding rail front bracket locking device according to claim 1, characterized in that: The front end of the buckle is also provided with a hook.

7. The sliding rail front bracket locking device according to claim 6, characterized in that: The top plate, buckle, and hook are integrally bent into shape.

8. The sliding rail front bracket locking device according to claim 2, characterized in that: The width of the buckle is greater than the width of the top plate, and the width of the buckle is greater than the width of the second through hole.