High-strength aluminum alloy rivet nut

By designing a combined structure of threaded inner ring, insert rod, and elastic locking rod, the problem of insufficient connection strength of aluminum alloy rivet nuts under vibration and impact conditions was solved, achieving a high-strength and stable connection effect.

CN223794469UActive Publication Date: 2026-01-13WUXI RUIBITE FASTENING SYST CO LTD
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Patent Information

Application Number
CN202520652186.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-01-13
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing aluminum alloy rivet nuts have insufficient connection strength under complex vibration and impact conditions, making it difficult to guarantee long-term stability, especially in applications with frequent vibrations such as subway vehicles.

Method used

A high-strength aluminum alloy rivet nut was designed. Through the combination structure of the threaded inner ring, insert rod, elastic clamping rod and locking rod, the movable sleeve of the threaded inner ring and the elastic clamping are realized, which enhances the connection stability.

Benefits of technology

It improves the stability of the connection between the nut and the parts, facilitates the replacement of the inner thread ring, and enhances the connection strength under vibration and impact environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of nuts, and discloses a high-strength aluminum alloy rivet nut which comprises a base. The nut is fixedly connected to the top of the base; an operation assembly is fixedly connected into the nut. According to the high-strength aluminum alloy rivet nut, the inner surface of the nut is movably sleeved with the threaded inner ring, meanwhile, the mounting ring drives the insertion rod to penetrate through the top of the base, and meanwhile, the top end of the insertion rod extrudes the bottom end of the elastic clamping rod, so that the elastic clamping rod is stressed and deforms through the elasticity of the elastic clamping rod; when the threaded rod is in threaded connection with the inner surface of the threaded inner ring, the locking rod is extruded to move out of the round hole, and the threaded inner ring can be conveniently replaced; when connection is finished, the locking rod is driven by elasticity of the elastic piece to reset and is clamped on the inner surfaces of the upper and lower threaded grooves of the screw rod, so that the connection stability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically to high-strength aluminum alloy rivet nuts. Background Technology

[0002] Rivet nuts, also known as rivet nuts, rivet caps, or instant rivet caps, are a type of fastening accessory used in the manufacturing of various metal sheets, pipes, and other materials.

[0003] According to Chinese Patent CN211039348U, an aluminum alloy rivet nut with high-strength threads is provided. By setting a clamping mechanism, it is easy to replace the reinforcing threaded sleeve inside the nut body. The setting of the limiting ring can effectively prevent the reinforcing threaded sleeve from falling out of the nut body, thereby ensuring the normal use of the reinforcing threaded sleeve. At the same time, the reinforcing threaded sleeve effectively improves the strength of the rivet nut after it is connected to the part.

[0004] However, in complex operating conditions involving vibration and impact, even with some reinforced structures, it may still be insufficient to guarantee long-term stable connection strength, such as in applications with frequent vibrations, like subway vehicles. Therefore, we offer high-strength aluminum alloy rivet nuts. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength aluminum alloy rivet nut to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength aluminum alloy rivet nut, comprising: a base;

[0007] A nut that is securely connected to the top of the base;

[0008] The nut is also fixedly connected to an operating component; the operating component includes a mounting part fixedly connected inside the nut, and the mounting part is connected to a locking part.

[0009] Preferably, the mounting part includes a threaded inner ring penetrating the inner surface of the nut, a positioning block fixedly connected to the outer wall of the threaded inner ring, the outer wall of the positioning block engaging with the inner surface of a positioning groove, the positioning groove being formed on the inner surface of the nut, an mounting ring fixedly connected to the bottom of the threaded inner ring, an insert rod fixedly connected to the top of the mounting ring, the top end of the insert rod penetrating through a through hole formed at the top of the base, a fixing groove being formed on the outer wall of the top end of the insert rod, an elastic locking rod engaging with the inner surface of the fixing groove, the top of the elastic locking rod being fixedly connected to the bottom of a connecting block, and the inner side of the connecting block being fixedly connected to the outer wall of the nut.

[0010] Preferably, the locking part includes a circular hole formed on the outer wall of the threaded inner ring, a locking rod passing through the inner surface of the circular hole, the outer end of the locking rod being fixedly connected to an elastic plate, the end of the elastic plate away from the locking rod being fixedly connected to the inner side of the mounting plate, and the top and bottom surfaces of the mounting plate being fixedly connected to the top of the threaded inner ring.

[0011] Preferably, the top end of the insertion rod extends through the top of the base, and the threaded inner ring is positioned and installed by the insertion rod extending through the top of the base.

[0012] Preferably, the inner surface of the circular hole and the outer wall of the locking rod are configured to slide through each other, which facilitates the adjustment of the position of the locking rod.

[0013] Preferably, the locking rod is positioned between the upper and lower threaded grooves to improve stability during installation.

[0014] Preferably, the elastic sheet is arc-shaped, and the number of elastic sheets is six. The six elastic sheets are arranged in groups of three to facilitate deformation of the elastic sheet under force.

[0015] Compared with the prior art, this utility model provides a high-strength aluminum alloy rivet nut, which has the following beneficial effects:

[0016] 1. This high-strength aluminum alloy rivet nut works by movably fitting the inner threaded ring onto the inner surface of the nut, while the mounting ring drives the insert rod through the top of the base. At the same time, the top of the insert rod presses against the bottom of the elastic locking rod, causing the elastic locking rod to be stressed and deformed using its own elasticity. When the bottom of the elastic locking rod aligns with the inner surface of the fixing groove, the elastic locking rod resets and its bottom end engages with the inner surface of the fixing groove, thus completing the installation of the inner threaded ring and facilitating its replacement.

[0017] 2. When the screw is threaded to the inner surface of the inner ring of the high-strength aluminum alloy rivet nut, the locking rod is squeezed and moves outward from the round hole. When the connection is completed, the elasticity of the elastic plate drives the locking rod to reset and lock into the inner surface of the upper and lower thread grooves of the screw, thereby improving the stability of the connection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0021] Figure 4 This is a schematic diagram of the internal structure of the nut of this utility model;

[0022] Figure 5 This is a schematic diagram of the installation part of this utility model;

[0023] Figure 6 This is a schematic diagram of the locking part of this utility model.

[0024] In the diagram: base 1, nut 2, operating component 3, mounting part 31, threaded inner ring 311, positioning block 312, positioning groove 313, mounting ring 314, insertion rod 315, through hole 316, fixing groove 317, elastic locking rod 318, connecting block 319, locking part 32, round hole 321, locking rod 322, elastic plate 323, mounting plate 324. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1: The high-strength aluminum alloy rivet nut provided by this utility model, such as Figures 1 to 4 As shown: High-strength aluminum alloy rivet nut, including: base 1;

[0028] Nut 2 is fixedly connected to the top of base 1;

[0029] The nut 2 is internally fixedly connected to an operating component 3; the operating component 3 includes a mounting part 31 fixedly connected inside the nut 2, and the mounting part 31 is connected to a locking part 32.

[0030] The mounting part 31 includes a threaded inner ring 311 that penetrates the inner surface of the nut 2. A positioning block 312 is fixedly connected to the outer wall of the threaded inner ring 311. The outer wall of the positioning block 312 is engaged with the inner surface of the positioning groove 313, which is located on the inner surface of the nut 2. A mounting ring 314 is fixedly connected to the bottom of the threaded inner ring 311. A plug rod 315 is fixedly connected to the top of the mounting ring 314. The top end of the plug rod 315 penetrates through a through hole 316 at the top of the base 1. A fixing groove 317 is provided on the outer wall of the top end of the plug rod 315. An elastic locking rod 318 is engaged with the inner surface of the fixing groove 317. The top end of the elastic locking rod 318 is fixedly connected to the bottom of the connecting block 319. The inner side of the connecting block 319 is fixedly connected to the outer wall of the nut 2.

[0031] In this embodiment, the top end of the insertion rod 315 extends through the top of the base 1, and the threaded inner ring 311 is positioned and installed by the insertion rod 315 extending through the top of the base 1.

[0032] Example 2: Based on Example 1, the high-strength aluminum alloy rivet nut provided by this utility model, such as... Figures 1 to 4 As shown: The locking part 32 includes a circular hole 321 formed on the outer wall of the threaded inner ring 311. A locking rod 322 passes through the inner surface of the circular hole 321. The outer end of the locking rod 322 is fixedly connected to the elastic piece 323. The end of the elastic piece 323 away from the locking rod 322 is fixedly connected to the inner side of the mounting plate 324. The top and bottom surfaces of the mounting plate 324 are fixedly connected to the top of the threaded inner ring 311.

[0033] In this embodiment, the inner surface of the circular hole 321 and the outer wall of the locking rod 322 are configured to slide through each other, which facilitates the adjustment of the position of the locking rod 322.

[0034] Furthermore, the locking rod 322 is positioned between the upper and lower threaded grooves to improve stability during installation.

[0035] Furthermore, the elastic sheet 323 is designed to be arc-shaped, and the number of elastic sheets 323 is set to six. The six elastic sheets 323 are arranged in groups of three, which facilitates the deformation of the elastic sheet 323 under stress.

[0036] In actual operation, when this device is used, the threaded inner ring 311 is movably fitted onto the inner surface of the nut 2, while the mounting ring 314 drives the insertion rod 315 through the top of the base. At the same time, the top of the insertion rod 315 presses against the bottom of the elastic locking rod 318, causing the elastic locking rod 318 to be stressed and deformed by its own elasticity. When the bottom of the elastic locking rod 318 corresponds to the inner surface of the fixing groove 317, the elastic locking rod 318 resets and the bottom end is locked into the inner surface of the fixing groove 317, thus completing the installation of the threaded inner ring 311 and facilitating the replacement of the threaded inner ring 311.

[0037] When the screw is threaded to the inner surface of the inner ring 311, the locking rod 322 is squeezed and moves outward from the round hole 321. When the connection is completed, the elasticity of the elastic plate 323 drives the locking rod 322 to reset and lock into the inner surface of the upper and lower thread grooves of the screw, thereby improving the stability of the connection.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. High-strength aluminum alloy rivet nuts, including: Base (1); Nut (2) is fixedly connected to the top of the base (1); The feature is that: the nut (2) is internally fixedly connected to an operating component (3); the operating component (3) includes a mounting part (31) fixedly connected inside the nut (2), and the mounting part (31) is connected to a locking part (32).

2. The high-strength aluminum alloy rivet nut according to claim 1, characterized in that: The mounting part (31) includes a threaded inner ring (311) that penetrates the inner surface of the nut (2). A positioning block (312) is fixedly connected to the outer wall of the threaded inner ring (311). The outer wall of the positioning block (312) is engaged with the inner surface of the positioning groove (313), which is opened on the inner surface of the nut (2). An installation ring (314) is fixedly connected to the bottom of the threaded inner ring (311). A plug rod (315) is fixedly connected to the top of the installation ring (314). The top end of the plug rod (315) penetrates through a through hole (316) opened at the top of the base (1). A fixing groove (317) is opened on the outer wall of the top end of the plug rod (315). An elastic locking rod (318) is engaged on the inner surface of the fixing groove (317). The top end of the elastic locking rod (318) is fixedly connected to the bottom of the connecting block (319). The inner side of the connecting block (319) is fixedly connected to the outer wall of the nut (2).

3. The high-strength aluminum alloy rivet nut according to claim 1, characterized in that: The locking part (32) includes a circular hole (321) on the outer wall of the threaded inner ring (311). A locking rod (322) passes through the inner surface of the circular hole (321). The outer end of the locking rod (322) is fixedly connected to an elastic plate (323). The end of the elastic plate (323) away from the locking rod (322) is fixedly connected to the inner side of the mounting plate (324). The top and bottom surfaces of the mounting plate (324) are fixedly connected to the top of the threaded inner ring (311).

4. The high-strength aluminum alloy rivet nut according to claim 2, characterized in that: The top of the insertion rod (315) extends through the top of the base (1).

5. The high-strength aluminum alloy rivet nut according to claim 3, characterized in that: The inner surface of the circular hole (321) and the outer wall of the locking rod (322) are configured to slide through each other.

6. The high-strength aluminum alloy rivet nut according to claim 3, characterized in that: The locking rod (322) is positioned between the upper and lower threaded grooves.

7. The high-strength aluminum alloy rivet nut according to claim 3, characterized in that: The elastic sheet (323) is arc-shaped, and the number of elastic sheets (323) is six, with three of the six elastic sheets (323) forming a group.

Citation Information

Patent Citations

  • Aluminum alloy rivet nut with high-strength threads

    CN211039348U