Tool-free slide rail and chassis locking device
Patent Information
- Application Number
- TW114110142
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-10-01
- Estimated Expiration
- 2045-03-17
AI Technical Summary
Existing slide rail systems for industrial cabinets require tools for assembly and disassembly, and existing locking mechanisms are prone to deformation or breakage, leading to poor locking performance and increased complexity.
A tool-free slide rail and chassis locking device with a locking body, fixing plate, and chassis rivet, utilizing a locking spring mechanism that allows for tool-less assembly and disassembly, reducing parts and enhancing locking stability.
Improves assembly convenience and reduces manufacturing and assembly costs by eliminating the need for tools and enhancing locking reliability.
Smart Images

Figure TWG2TA001077548_001 
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Abstract
Description
[Technical Field]
[0001] This invention belongs to the technical field of slide rail accessories, and in particular to a tool-free slide rail and chassis locking device, which has the purpose of locking the slide rail and the chassis to an industrial cabinet, and the purpose of connecting and locking the chassis to the inner rail, thereby greatly improving the convenience of assembly and operation. [Previous Technology]
[0002] Note that in common industrial computer cabinets, multiple servers are installed inside. They are mounted on both sides of the computer cabinet using a slide rail. The slide rail is mostly mounted on the support frame of the computer cabinet so that the server can be directly pulled out to the outside of the computer cabinet for inspection and maintenance. The slide rail usually includes an inner rail, a middle rail and an outer rail. The outer rail is fixed to the support frame, and the inner rail is fixed to the side of the server. The middle rail is connected between the inner rail and the outer rail as a load-bearing rail to extend the range of motion of the server. The inner rail and the middle rail can slide back and forth relative to the outer rail along the axis of the outer rail, so that the server can be freely pulled out or pushed back into the cabinet through the slide rail.
[0003] The inner rail and the server are usually secured with multiple screws, requiring tools such as screwdrivers, making installation and disassembly complex. Therefore, US Patent 6,209,979, "Slide Rail Assembly with Quick-Installation System," has emerged. This system utilizes multiple L-shaped holes cut directly into the top of the slide rail, while multiple mounting posts are provided on both sides of the chassis. These posts are positioned by embedding into the mounting holes of the slide rail, and a stopper blocks one of the mounting holes, allowing for quick installation of the chassis onto the slide rail. However, while this operation uses the stopper as a locking mechanism, in actual use, its thickness and the fact that it is prone to deformation or breakage during disassembly after installation result in poor locking performance or even failure, necessitating improvement.
[0004] In view of this, the inventor has designed a tool-free slide rail and chassis locking device through continuous research, improvement and testing. It includes a locking body, a fixing plate, the inner rail and at least one chassis rivet, which is installed at the end of one of the inner rails of the slide rail. The locking body includes a fixing seat and a locking means, which is used to lock the slide rail and the chassis to an industrial cabinet. The fixing plate has a first fixing part and a second fixing part arranged perpendicularly to each other, which are fixed to the locking body and the inner rail respectively. The second fixing part extends to provide a locking spring, and a locking hole is provided near the upper edge of the inner rail, so that the locking spring extends to cover the locking hole. The chassis rivet is provided on the outside of the chassis, which is used to connect and lock the chassis to the inner rail. This not only greatly improves the convenience of assembly and operation, but also reduces the number of parts and does not require additional structure, while adding additional locking functions. [Summary of the Invention]
[0005] One of the purposes of this invention is to provide a tool-free slide rail and chassis locking device, which consists of a locking body, a fixing piece, the inner rail and at least one chassis rivet. It has the functions of locking the slide rail and chassis to an industrial cabinet, and locking the chassis to the inner rail connection. This improves the convenience of assembly and operation, effectively reduces the number of parts and does not require additional structure, thereby reducing manufacturing and assembly costs.
[0006] To achieve the above objectives, the tool-free slide rail and chassis locking device of this invention is installed at the end of one inner rail of the slide rail, serving as a connection and locking mechanism for the chassis to the inner rail, and for locking the slide rail and chassis to an industrial cabinet to prevent them from coming loose. It includes: a locking body comprising a fixing base and a locking means, the locking means being disposed within an accommodating space formed on the front of the fixing base, and the locking means having a first operating part and a locking part, the locking part extending through the back of the fixing base, the first operating part being used to engage the locking part to latch onto the industrial cabinet to form a lock; the back of the locking part having a plurality of first fixing holes; and a fixing plate having a first fixing part and a second fixing part arranged perpendicularly to each other to form an L-shaped plate structure, the first fixing part corresponding to the corresponding first fixing holes. The slide rail is provided with a plurality of second fixing holes, and a plurality of third fixing holes corresponding to the inner rail. A locking spring extends from the second fixing part. The inner rail has a plurality of fourth fixing holes corresponding to the third fixing holes at one end, and a locking hole is provided near the upper edge of the inner rail on one side of the fourth fixing holes. A portion of the locking spring extends to cover the locking hole. At least one chassis rivet is located on the outer side of the chassis. When the chassis is installed on the slide rail, the restoring force of the locking spring pushes the chassis rivet into the locking hole from top to bottom, first opening the locking spring. After the chassis rivet is fully inserted into the locking hole, the locking spring covers the locking hole again, sealing the chassis rivet inside to form a lock. Pulling the locking spring in the opposite direction removes the chassis rivet from the locking hole, thus separating the chassis from the slide rail.
[0007] In one embodiment, one end of the fixing piece of the present invention is fixed to the surface of the inner rail through the third fixing hole, so that the locking spring is defined as being able to swing relative to the inner rail, and the locking spring normally remains flat against the surface of the inner rail, so as not to cause obstruction during operation.
[0008] In another embodiment, the locking spring of this invention is E-shaped, with a pair of connecting portions to connect to the edge of the fixing piece, and a latching portion provided on the locking spring corresponding to the locking hole; furthermore, the top edge of the latching portion is provided with a beveled guide portion corresponding to the chassis rivet, and a second operating portion is provided on the locking spring corresponding to the center of the pair of connecting portions, the second operating portion being able to swing in the opposite direction to the inner rail surface; furthermore, the second operating portion is bent and protrudes from the surface of the inner rail, so that the second operating portion can swing in the opposite direction to the inner rail surface, similar to a seesaw structure, and swinging with the turning point of the pair of connecting portions as the fulcrum during operation; in addition, the fixing piece also has an auxiliary fixing piece, extending from the edge of the fixing piece and located on one side of the locking spring, and the auxiliary fixing piece is provided with a fifth fixing hole, and a sixth fixing hole is provided on the inner rail corresponding to the fifth fixing hole, so that it is more stable after installation.
[0009] In another embodiment, the locking part of the present invention is provided with a hook at its end, and the second fixing part is provided with a through hole corresponding to the hook, such that the through hole is located in the center of the distribution position of the third fixing holes.
Implementation Method
[0010] To ensure that your review committee can clearly understand the content of this work, please refer to the following explanations and illustrations.
[0011] Please refer to Figures 1, 2, and 3-5, which are exploded perspective views of a preferred embodiment of the present invention, schematic diagrams of its assembled appearance, and schematic diagrams of its various operational states. As shown in the above figures, the tool-free slide rail and chassis locking device 1 of the present invention includes a locking body 11, a fixing piece 12, an inner rail 21, and at least one chassis rivet 13, which is installed at the end of the inner rail 21 of the slide rail 2, serving as a connection and locking device for the chassis 3 to the inner rail 21, and locking the slide rail 2 and chassis 3 to an industrial cabinet to prevent them from coming loose.
[0012] The locking body 11 includes a fixing base 111 and a locking means 112. The locking means 112 is disposed in an accommodating space 1111 formed on the front of the fixing base 111. The locking means 112 has a first operating part 1121 and a locking part 1122. The locking part 1122 extends through the back of the fixing base 111. The first operating part 1121 is used to drive the locking part 1122 to latch onto the industrial cabinet 4 to form a lock. The back of the locking part 1122 has a plurality of first fixing holes 1123.
[0013] The fixing piece 12 is an L-shaped sheet structure formed by having a first fixing part 121 and a second fixing part 122 arranged perpendicularly to each other. The first fixing part 121 has a plurality of second fixing holes 1211 corresponding to the first fixing holes 1123, and the second fixing part 122 has a plurality of third fixing holes 1221 corresponding to the inner rail 21. The second fixing part 122 extends to provide a locking spring 123. One end of the fixing piece 12 is fixed to the surface of the inner rail 21 through the third fixing holes 1221, so that the locking spring 123 is defined to be able to swing relative to the inner rail 21, and the locking spring 123 normally remains flat against the surface of the inner rail 21. The locking part 1122 has a hook 11221 at its end, and the second fixing part 122 has a through hole 1222 that protrudes from the hook 11221, such that the through hole 1222 is located in the center of the distribution of the third fixing holes 1221.
[0014] One end of the inner rail 21 is provided with a plurality of fourth fixing holes 211 corresponding to the third fixing hole 1221, and a locking hole 212 is provided on one side of the fourth fixing holes 211 near the upper edge of the inner rail 21. A portion of the locking spring 123 extends to cover the locking hole 212. It should be noted that in this embodiment, the locking spring 123 is E-shaped, has a pair of connecting portions 1231 to connect to the edge of the fixing piece 12, and a latching portion 1 is provided on the locking spring 123 corresponding to the locking hole 212. 232, and the top edge of the latching part 1232 is provided with a sloping guide part 1233 corresponding to the rivet 13 of the chassis, and a second operating part 1234 is provided on the locking spring 123 corresponding to the center of the connecting part 1231. The second operating part 1234 can be linked to the latching part 1232 to swing in the opposite direction to the surface of the inner rail 21. Furthermore, the second operating part 1234 is bent and protrudes from the surface of the inner rail 21, so that the second operating part 1234 can be linked to the latching part 1232 to swing in the opposite direction to the surface of the inner rail 21. In addition, the fixing piece 12 further has an auxiliary fixing piece 124, which extends from the edge of the fixing piece 12 and is located on one side of the locking spring 123. The auxiliary fixing piece 124 is provided with a fifth fixing hole 1241, and a sixth fixing hole 213 is provided on the inner rail 21 corresponding to the fifth fixing hole 1241.
[0015] The chassis rivet 13 is located on the outside of the chassis 3 to form a protruding appearance.
[0016] Accordingly, the actual use of the tool-free slide rail and chassis locking device 1 of this invention is divided into two parts: First, when the chassis 3 is installed on the slide rail 2, the locking spring 123 will push the locking spring 123 open first when the chassis rivet 13 is inserted into the locking hole 212 from top to bottom by the restoring elastic force of the locking spring 123. After the chassis rivet 13 is fully inserted into the locking hole 212, the locking spring 123 will cover the locking hole 212 again and seal the chassis rivet 13 inside to form a lock. By pulling the locking spring 123 in the opposite direction, the chassis rivet 13 can be taken out from the locking hole 212 to separate the chassis 3 from the slide rail 2. II. The locking means 112 of this invention has a first operating part 1121 and a locking part 1122, and the locking part 1122 extends through the back of the fixing base 111. The first operating part 1121 is used to drive the locking part 1122 to snap onto the industrial cabinet to form a lock, thereby improving the convenience of assembly and operation, and reducing the number of parts to reduce manufacturing and assembly costs.
[0017] However, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, any equivalent or easy changes made by those with ordinary knowledge in the art or those familiar with the technology without departing from the spirit and scope of the present invention should be covered within the patent scope of the present invention. [Simplified Explanation of the Diagram]
[0018] Figure 1 is an exploded perspective view of a preferred embodiment of the present invention. Figure 2 is a schematic diagram of the assembled appearance of a preferred embodiment of the present invention. Figure 3 is a schematic diagram of the state during operation of a preferred embodiment of the present invention (I). Figure 4 is a schematic diagram of the state during operation of a preferred embodiment of the present invention (II). Figure 5 is a schematic diagram of the state during operation of a preferred embodiment of the present invention (III).
Claims
1. A tool-free slide rail and chassis locking device, installed at the end of one inner rail of the slide rail, serving as a connection and locking mechanism for the chassis to the inner rail, and for locking the slide rail and chassis to an industrial cabinet to prevent them from coming loose, comprising: A locking body includes a fixing base and a locking means. The locking means is disposed in an accommodating space formed on the front of the fixing base. The locking means has a first operating part and a locking part, and the locking part extends through the back of the fixing base. The first operating part is used to activate the locking part to latch onto the industrial cabinet to form a lock. The back of the locking part has a plurality of first fixing holes. A fixing plate has a first fixing part and a second fixing part arranged perpendicularly to each other to form an L-shaped plate structure. The first fixing part has a plurality of second fixing holes corresponding to the first fixing holes, and the second fixing part has a plurality of third fixing holes corresponding to the inner rail. The second fixing part extends to provide a locking spring. The inner rail has a plurality of fourth fixing holes at one end corresponding to the third fixing holes, and a locking hole is provided on one side of the fourth fixing holes near the upper edge of the inner rail. A portion of the locking spring extends to cover the locking hole. At least one chassis rivet is located on the outside of the chassis. Accordingly, when installing the chassis onto the slide rail, the locking spring is used to insert the chassis rivet into the locking hole from top to bottom, thus first pushing the locking spring open. After the chassis rivet is fully inserted into the locking hole, the locking spring covers the locking hole again, thus locking the chassis rivet inside. Pulling the locking spring in the opposite direction allows the chassis rivet to be removed from the locking hole, thereby separating the chassis from the slide rail.
2. The tool-free slide rail and chassis locking device as described in claim 1, wherein, One end of the fixing piece is fixed to the surface of the inner rail through the third fixing hole, so that the locking spring is defined to be able to swing relative to the inner rail, and the locking spring normally remains in contact with the surface of the inner rail.
3. The tool-free slide rail and chassis locking device as described in claim 1, wherein, The locking spring is E-shaped, with a pair of connecting parts to the edge of the fixing piece, and a latching part corresponding to the locking hole on the locking spring.
4. The tool-free slide rail and chassis locking device as described in claim 3, wherein, The top edge of the locking part is provided with a sloping guide portion corresponding to the rivet of the chassis, and a second operating part is provided in the center of the locking spring corresponding to the connecting part. The second operating part can be linked to the locking part to swing in the opposite direction of the inner rail surface.
5. The tool-free slide rail and chassis locking device as described in claim 4, wherein, The second operating part is bent and protrudes from the surface of the inner rail, so that the second operating part can be linked to the locking part to swing in the opposite direction of the inner rail surface.
6. The tool-free slide rail and chassis locking device as described in claim 5 further includes an auxiliary fixing piece extending from the edge of the fixing piece and located on one side of the locking spring, and the auxiliary fixing piece having a fifth fixing hole, and the inner rail having a sixth fixing hole corresponding to the fifth fixing hole.
7. The tool-free slide rail and chassis locking device as described in claim 1, wherein, The locking part has a hook at its end, and the second fixing part has a through hole corresponding to the hook, such that the through hole is located in the center of the distribution of the third fixing holes.
