Anti-rotation internal thread pin for server sliding rail
The design of the anti-rotation internal threaded pin solves the problem of bolt breakage at the server slide rail fixing end, achieving more stable server installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ACCURIDE INT SUZHOU CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-21
AI Technical Summary
The traditional installation method of mounting server rails at the fixed end can easily lead to excessive stress on the bolts, causing them to break and be damaged, thus affecting installation efficiency.
The design employs an anti-rotation internal threaded pin, which, through the dual setting of internal and external threads, enhances the combination of the cylinder and the anti-loosening nut, increases the stress strength of the fixed end, and prevents bolt breakage.
The strength of the slide rail fixing end has been enhanced, preventing bolt breakage and improving the stability and efficiency of server installation.
Smart Images

Figure CN224149969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of server slide rail technology, and in particular to anti-rotation internal threaded pins for server slide rails. Background Technology
[0002] A slide rail is a type of hardware component. In servers, a slide rail is a highly precise mechanical part. Through the slide rail assembly, servers can be stored layer by layer in the rack. For example, first, the outer frame is installed on the server rack using front and rear brackets. Then, the side walls of the server chassis are installed on the inner frame. At this time, the server chassis is installed on the rack by inserting the inner frames on both sides into the outer frame.
[0003] Currently, server rails typically have a fixed end installed at one end, and the server rail is connected to the base or supporting structure (such as rack, ground, equipment body, etc.) through the fixed end. The traditional installation method for the fixed end is to directly use bolts and pins to fix one end of the fixed end to the base or supporting structure. However, after the rail is installed with the server, due to the weight of the rail itself, the force is easily concentrated on the bolt, causing the single rivet or bolt to bear excessive force, resulting in bolt breakage and damage. This requires disassembly and repair, which is troublesome and affects the installation efficiency of the server. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a server slide rail anti-rotation internal threaded pin that, through the dual setting of internal and external threads, increases the stress strength of the fixed end without affecting its normal operation.
[0005] To solve the above-mentioned technical problems and achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution:
[0006] The technical solution of this utility model is: a server slide rail anti-rotation internal threaded pin, including a mounting plate, a fixing plate is provided at the front end of the mounting plate, irregular holes are opened on both sides inside the fixing plate, a reinforcing cylinder is provided inside the fixing plate, an anti-loosening nut is provided on the surface of the reinforcing cylinder, and the outer cylindrical surface of the anti-loosening nut is connected to the column hole of the server rack, and an internal threaded hole is opened inside the reinforcing cylinder, which is fixedly connected to the server chassis mounting lug by a captive screw.
[0007] Furthermore, the surface of the reinforcing cylinder is provided with an external thread groove, and the anti-loosening nut is threadedly connected to the reinforcing cylinder through the external thread groove.
[0008] Furthermore, the length of the anti-loosening nut is less than the length of the reinforcing cylinder.
[0009] Furthermore, the mounting plate is provided with an elastic element, and the front side inside the mounting plate is provided with a movable hole for the elastic element to move. The front end of the elastic element extends forward through the movable hole and extends to the front side of the fixing plate.
[0010] Furthermore, the distance between the two anti-loosening nuts is greater than the width of the front end of the elastic element.
[0011] Furthermore, the front end of the mounting plate is provided with an auxiliary connecting plate, and both sides of the auxiliary connecting plate are provided with threaded holes. The auxiliary connecting plate is fixedly connected to one end of the slide rail by bolts.
[0012] Furthermore, the fixing plate is L-shaped, and both sides of the mounting plate are provided with downward-extending protective plates.
[0013] Furthermore, a baffle is provided on the top of the back side of the fixing plate, and the height of the fixing plate is higher than the height of the elastic element.
[0014] Furthermore, the mounting plate has mounting holes inside, and there are multiple mounting holes.
[0015] The beneficial technical effects of this utility model are as follows: By designing threads on both the inside and surface of the reinforcing cylinder, after the reinforcing cylinder is fixed inside the fixing plate by the threads, an anti-loosening nut is threadedly connected to the other end surface of the reinforcing cylinder. This allows the nut at the tail end of the reinforcing cylinder to clamp the fixing plate in conjunction with the anti-loosening nut. Then, the non-detachable screw is fixed to the base or support structure (such as the frame, ground, equipment body, etc.) through the internal threaded hole. Compared with the traditional method of directly fixing with bolts, this solution uses an internal threaded hole and a non-detachable screw, allowing the device to be connected to the server chassis mounting lug at any position on the pin at the front end of the corresponding slide rail. At the same time, it further increases the stress strength of the bolt, avoiding the problem of excessive stress and bolt breakage caused by the large weight of the server itself concentrating on the bolt. Furthermore, the design of the reinforcing cylinder and the anti-loosening nut ensures that when a threaded rod is threaded into the internal threaded hole of the reinforcing cylinder later, the reinforcing cylinder will not detach from the fixing plate due to its own rotation. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural schematic diagram of the elastic element and reinforcing cylinder of this utility model;
[0018] Figure 3 This is a three-dimensional structural schematic diagram of the reinforcing cylinder and anti-loosening nut of this utility model;
[0019] Figure 4This is a front view schematic diagram of the structure of the reinforcing cylinder and the anti-loosening nut of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the internal threaded hole and external threaded groove of this utility model;
[0021] Figure 6 This is a front view schematic diagram of the structure of this utility model;
[0022] Figure 7 This is a side view schematic diagram of the structure of this utility model.
[0023] Figure 8 This is a side view schematic diagram of the structure of the fixing plate and the irregular hole of this utility model;
[0024] The numbers and letters in the diagram represent the names of the corresponding components:
[0025] 1. Mounting plate; 11. Auxiliary connecting plate; 2. Fixing plate; 3. Elastic element; 4. Anti-loosening nut; 5. Reinforcing cylinder; 6. Internal threaded hole; 7. External threaded groove; 8. Irregular hole. Detailed Implementation
[0026] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0027] See appendix Figure 1 -Appendix Figure 8 As shown, a server slide rail anti-rotation internal threaded pin includes a mounting plate 1. The mounting plate 1 has multiple mounting holes inside. The mounting plate 1 is attached to the slide rail and the mounting plate 1 and the slide rail are fixed together by bolts.
[0028] The front end of the mounting plate 1 is provided with an auxiliary connecting plate 11. Both sides of the auxiliary connecting plate 11 are provided with threaded holes. The auxiliary connecting plate 11 is fixedly connected to one end of the slide rail by bolts.
[0029] With the back threaded hole design on the auxiliary connecting plate 11, when the mounting plate 1 is assembled and fixed with the slide rail, the auxiliary connecting plate 11 can be first attached to the designated position on the slide rail with bolts for auxiliary fixation, and then the mounting plate 1 and the slide rail can be completely fixed through the mounting hole.
[0030] A fixing plate 2 is provided at the front end of the mounting plate 1, and irregular holes 8 are provided on both sides of the interior of the fixing plate 2 (e.g., Figure 8As shown, the bottom of the irregular hole 8 is set as a plane, the fixing plate 2 is designed in an L shape, both sides of the mounting plate 1 are provided with downward extending protective plates, the top of the back of the fixing plate 2 is provided with a baffle, and the height of the fixing plate 2 is higher than the height of the elastic member 3.
[0031] The fixed plate 2 allows the slide rail to be connected and installed to the base or support structure (such as frame, ground, equipment body, etc.) via the mounting plate 1. The protective plate can guide the slide rail when it is connected to the mounting plate 1 to prevent it from shifting. The baffle can prevent foreign objects from hitting the reinforcing cylinder 5.
[0032] The mounting plate 2 has a reinforcing cylinder 5 inside, and the surface of the reinforcing cylinder 5 is provided with an anti-loosening nut 4. The outer cylindrical surface of the anti-loosening nut 4 is connected to the column hole of the server rack. The reinforcing cylinder 5 has an internal threaded hole 6 inside, and the server rack lug is provided with a captive screw. The internal threaded hole 6 is fixedly connected to the server rack through the captive screw. Therefore, this device can be connected to the server rack lug by a pin at any position on the front end of the slide rail.
[0033] The surface of the reinforcing cylinder 5 is provided with an external thread groove 7. The anti-loosening nut 4 is threadedly connected to the reinforcing cylinder 5 through the external thread groove 7. The length of the anti-loosening nut 4 is less than the length of the reinforcing cylinder 5.
[0034] When the internal thread of the internal threaded hole 6 is installed with the bolt, the reinforcing cylinder 5 will rotate with the internal bolt, causing the connection between the reinforcing cylinder 5 and the fixing plate 2 to loosen. At this time, the anti-loosening nut 4 can limit the reinforcing cylinder 5, prevent the reinforcing cylinder 5 from rotating with the bolt, and increase stability.
[0035] By designing threads on both the inside and the surface of the reinforcing cylinder 5, after the reinforcing cylinder 5 is fixed inside the fixing plate 2 by the threads, and an anti-loosening nut 4 is threadedly connected to the other end of the reinforcing cylinder 5, the nut at the tail end of the reinforcing cylinder 5, together with the anti-loosening nut 4, clamps the fixing plate 2. Then, the bolts are fixed to the base or support structure such as the frame, the ground, or the main body of the equipment through the internal threaded hole 6. This increases the stress strength of the reinforcing cylinder 5 and avoids the problem of excessive stress on the rivets or bolts and bolt breakage caused by the large weight of the server itself being concentrated on the slide rail after the slide rail is installed with the server.
[0036] Furthermore, an elastic element 3 is provided on the mounting plate 1. An movable hole is provided on the front side of the mounting plate 1 for the elastic element 3 to move. The front end of the elastic element 3 extends forward through the movable hole and extends to the front side of the fixing plate 2. By providing the elastic element 3, when the mounting plate 1 comes into contact with the base or support structure (such as the frame, ground, equipment body, etc.), the outer end of the elastic element 3 is located outside one end of the anti-loosening nut 4, so that the outer end of the elastic element 3 can be buffered to prevent the anti-loosening nut 4 from being hit and increase the protection of the anti-loosening nut 4.
[0037] Furthermore, the distance between the two anti-loosening nuts 4 is greater than the width of the front end of the elastic element 3. The elastic element 3 is located between the two anti-loosening nuts 4, so that the elastic element 3 can protect the anti-loosening nuts 4 without affecting their normal operation.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A rotation-preventing internally threaded trunnion for a server slide rail, characterized by, include: Mounting plate (1), the front end of the mounting plate (1) is provided with a fixing plate (2), the fixing plate (2) has irregular holes (8) on both sides inside, the fixing plate (2) is provided with a reinforcing cylinder (5), the surface of the reinforcing cylinder (5) is provided with a lock nut (4), and the outer cylindrical surface of the lock nut (4) is connected to the column hole of the server rack, the reinforcing cylinder (5) is provided with an internal thread hole (6), and the internal thread hole (6) is fixedly connected to the server rack mounting lug by a lock-on screw.
2. The anti-rotation internally threaded trunconical pin for server slide rails as claimed in claim 1, wherein, The surface of the reinforcing cylinder (5) is provided with an external thread groove (7), and the anti-loosening nut (4) is threadedly connected to the reinforcing cylinder (5) through the external thread groove (7).
3. The anti-rotation internally threaded trunconical pin for server slide rails of claim 1 wherein, The length of the anti-loosening nut (4) is less than the length of the reinforcing cylinder (5).
4. The anti-rotation internally threaded trunconical pin for server slide rails of claim 1 wherein, An elastic element (3) is provided on the mounting plate (1). An movable hole is provided on the front side of the mounting plate (1) for the elastic element (3) to move. The front end of the elastic element (3) extends forward through the movable hole and extends to the front side of the fixing plate (2).
5. The anti-rotation internally threaded trunconical pin for server slide rails as claimed in claim 4, wherein, The distance between the two anti-loosening nuts (4) is greater than the width of the front end of the elastic element (3).
6. The anti-rotation internally threaded trunconical pin for server slide rails of claim 1 wherein, The front end of the mounting plate (1) is provided with an auxiliary connecting plate (11). Both sides of the auxiliary connecting plate (11) are provided with threaded holes. The auxiliary connecting plate (11) is fixedly connected to one end of the slide rail by bolts.
7. The anti-rotation internally threaded trunconical pin for server slide rails of claim 1 wherein, The fixing plate (2) is L-shaped, and the mounting plate (1) has downward-extending protective plates on both sides.
8. The anti-rotation internally threaded trunconical pin for server slide rails of claim 4 wherein, A baffle is provided on the top of the back of the fixing plate (2), and the height of the fixing plate (2) is higher than the height of the elastic member (3).
9. The anti-rotation internally threaded dowel pin for a server slide rail of claim 1, wherein, The mounting plate (1) has mounting holes inside, and there are multiple mounting holes.