Stainless steel all-metal flange locking nut convenient to use

The staggered retaining ring and limiting block structure solves the problem of stripping of stainless steel flange lock nuts in harsh environments, achieving easy disassembly and stable connection, and preventing rust.

CN223549625UActive Publication Date: 2025-11-14RUIAN QINGHUI STAINLESS STEEL PROD CO LTD
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Patent Information

Application Number
CN202520102550.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-11-14
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Existing stainless steel all-metal flange locking nuts are prone to rust and stripping under long-term harsh environments, making disassembly inconvenient.

Method used

An alternating first and second retaining ring structure was designed, combined with a limiting block and a sealing ring. The retaining ring structure facilitates disassembly, the limiting block improves connection stability, and the sealing ring prevents corrosion.

Benefits of technology

It enables easy disassembly in harsh environments, improves connection stability and prevents corrosion, and ensures the reliability of threaded connections.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223549625U_ABST
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Abstract

The utility model discloses a stainless steel all-metal flange locking nut convenient to use, which comprises a stainless steel all-metal flange locking nut body, and a bolt is in threaded connection with the inside of the stainless steel all-metal flange locking nut body. The stainless steel all-metal flange locking nut comprises a stainless steel all-metal flange locking nut body, a first clamping ring is arranged on the stainless steel all-metal flange locking nut body, the first clamping ring is hexagonal, a second clamping ring is arranged at the bottom of the first clamping ring, the second clamping ring is arranged on the stainless steel all-metal flange locking nut body, and the second clamping ring is hexagonal. And the second clamping rings and the first clamping rings are arranged in a staggered manner. According to the stainless steel all-metal flange locking nut convenient to use, the second clamping ring is installed, after the first clamping ring slips, the second clamping ring can be screwed, then the stainless steel all-metal flange locking nut body can be disassembled through the second clamping ring, and therefore the purpose of convenient use is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of flange locking nut technology, specifically a stainless steel all-metal flange locking nut that is easy to use. Background Technology

[0002] Stainless steel all-metal flange lock nuts are favored for their excellent performance and wide range of applications. They are often used in applications that require high loads and repeated stresses, such as aerospace, automotive manufacturing, machinery, and rail transportation. In addition, they are particularly suitable for important components that require ensuring that fasteners do not loosen under vibration or shock conditions.

[0003] Existing stainless steel all-metal flange lock nuts may become corroded due to rainwater corrosion during long-term use. The film on the surface of the stainless steel all-metal flange lock nuts may rust due to long-term use, which may cause stripping when tightening again, making it difficult to disassemble.

[0004] To address the aforementioned deficiencies, CN202811765U discloses a dodecagonal flange locking nut with friction protrusions. This nut has a threaded hole within its body, and a circumferential protrusion at one end. An annular groove is formed on the outer end face of the circumferential protrusion relative to the periphery of the threaded hole. This annular groove is coaxial with the threaded hole. Multiple friction protrusions are evenly distributed around the outer circumference of the outer end face of the circumferential protrusion relative to the annular groove. With this design, after the nut is tightened, the outer end face of the circumferential protrusion contacts the tire mounting surface. The multiple friction protrusions at this point greatly increase the friction between the two, resulting in a stable and reliable connection and better anti-loosening effect.

[0005] In actual use, although the dodecagonal nut body can improve the stability of the connection, under long-term use in harsh environments, the dodecagonal nut body may also be corroded, leading to stripped threads and inconvenience in disassembly.

[0006] Therefore, we have proposed a user-friendly stainless steel all-metal flange lock nut that can effectively solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide an easy-to-use stainless steel all-metal flange locking nut to solve the problem mentioned in the background art that the twelve-corner nut body may also be stripped due to corrosion under long-term harsh environment use, which in turn leads to inconvenience in disassembly.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a user-friendly stainless steel all-metal flange locking nut, comprising a stainless steel all-metal flange locking nut body, wherein the stainless steel all-metal flange locking nut body is internally threaded with bolts;

[0009] The stainless steel all-metal flange locking nut body is provided with a first retaining ring, which is hexagonal, and a second retaining ring is provided at the bottom of the first retaining ring. The second retaining ring is provided on the stainless steel all-metal flange locking nut body, and is hexagonal, and is staggered with the first retaining ring. The bottom of the stainless steel all-metal flange locking nut body is provided with an anti-loosening groove.

[0010] Preferably, a first sealing ring is nested at the top of the stainless steel all-metal flange locking nut body, and the inner end of the first sealing ring is in contact with the inner wall of the bolt to form a sealing mechanism.

[0011] Preferably, a second sealing ring is nested at the bottom of the stainless steel all-metal flange locking nut body, and the bottom of the second sealing ring is higher than the anti-loosening groove.

[0012] Preferably, the top of the stainless steel all-metal flange locking nut body is slidably connected to a limiting block, and the right end of the limiting block extends into the interior of the slide groove to form a locking mechanism.

[0013] Preferably, the groove is formed on the bolt, and the groove fits into the limiting block.

[0014] Preferably, a spring is connected to the middle of the limiting block, and the left end of the spring is connected to the inside of the stainless steel all-metal flange locking nut body.

[0015] Preferably, both the first sealing ring and the second sealing ring are made of rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-use stainless steel all-metal flange locking nut is easy to use and has good stability; the use of the second retaining ring can avoid difficulty in disassembly due to stripped threads, thus achieving the purpose of ease of use; and the use of the limiting block can limit the bolt, thereby improving the stability of the connection. The specific details are as follows:

[0017] (1) A second retaining ring is provided. After the first retaining ring slips, the second retaining ring can be turned. Then, the stainless steel all-metal flange locking nut body can be disassembled through the second retaining ring, so as to facilitate use.

[0018] (2) A limit block is set. Through the engagement between the limit block and the slide, the limit block can prevent the bolt from moving, so that the bolt can be firmly fixed inside the stainless steel all-metal flange locking nut body, thereby improving the stability of the connection.

[0019] (3) A first sealing ring is provided. The first sealing ring is nested inside the top of the stainless steel all-metal flange locking nut body, and the inner end of the first sealing ring is attached to the inner wall of the bolt to form a sealing mechanism. In this way, the first sealing ring can seal the connection between the bolt and the stainless steel all-metal flange locking nut body, thereby preventing rainwater from entering.

[0020] (4) A second sealing ring is provided. The second sealing ring is nested inside the bottom of the stainless steel all-metal flange locking nut body, and the bottom of the second sealing ring is higher than the anti-loosening groove. This allows the second sealing ring to seal the bottom of the stainless steel all-metal flange locking nut body, thereby achieving the purpose of protecting the threads of the stainless steel all-metal flange locking nut body.

[0021] (5) A spring is provided, which is connected to the middle of the limiting block, and the left end of the spring is connected to the inside of the stainless steel all-metal flange locking nut body, so that the spring can limit the limiting block, thereby improving the stability of the limiting block. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the detachable structure of the stainless steel all-metal flange locking nut body of this utility model;

[0024] Figure 3 This is a front view structural diagram of the stainless steel all-metal flange locking nut body of this utility model;

[0025] Figure 4 This is a bottom view of the stainless steel all-metal flange locking nut body of this utility model;

[0026] Figure 5 This is a front view structural diagram of the limiting block of this utility model;

[0027] Figure 6 This is a schematic diagram of the front section structure of the stainless steel all-metal flange locking nut body of this utility model.

[0028] In the diagram: 1. Stainless steel all-metal flange locking nut body; 2. Bolt; 3. First retaining ring; 4. Second retaining ring; 5. Anti-loosening groove; 6. First sealing ring; 7. Second sealing ring; 8. Limiting block; 9. Slide groove; 10. Spring. Detailed Implementation

[0029] 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.

[0030] Example 1: This utility model solves the problem that under long-term use in harsh environments, the twelve-corner nut body may also become stripped due to corrosion, leading to inconvenience in disassembly. The use of the second retaining ring 4 facilitates disassembly. The following is disclosed:

[0031] The stainless steel all-metal flange locking nut body 1 has a bolt 2 internally threaded connection; the stainless steel all-metal flange locking nut body 1 is provided with a first retaining ring 3, which is hexagonal, and a second retaining ring 4 is provided at the bottom of the first retaining ring 3. The second retaining ring 4 is provided on the stainless steel all-metal flange locking nut body 1, and is hexagonal, and is staggered with the first retaining ring 3. The bottom of the stainless steel all-metal flange locking nut body 1 is provided with an anti-loosening groove 5.

[0032] refer to Figures 1 to 3 During disassembly, a wrench is engaged with the first retaining ring 3, and then the wrench is rotated, causing the first retaining ring 3 to rotate as well. If the first retaining ring 3 is stripped, the wrench can be moved to the second retaining ring 4, and then the wrench can be rotated again, causing the second retaining ring 4 to rotate. This rotation of the second retaining ring 4 causes the stainless steel all-metal flange locking nut body 1 to rotate, thereby achieving the purpose of disassembly. Therefore, the design of the first retaining ring 3 and the second retaining ring 4 increases the probability of unscrewing the stainless steel all-metal flange locking nut body 1 under harsh conditions, thus avoiding the problem of inconvenient disassembly due to stripped threads, and achieving the purpose of ease of use.

[0033] Example 2: This utility model solves the problem that rainwater may enter the interior of the stainless steel all-metal flange locking nut body 1 and corrode the threads. The use of the first sealing ring 6 and the second sealing ring 7 can protect the threads, thereby preventing corrosion. The following is disclosed:

[0034] The top of the stainless steel all-metal flange locking nut body 1 is nested with a first sealing ring 6, and the inner end of the first sealing ring 6 is in contact with the inner wall of the bolt 2 to form a sealing mechanism. The bottom of the stainless steel all-metal flange locking nut body 1 is nested with a second sealing ring 7, and the bottom of the second sealing ring 7 is higher than the anti-loosening groove 5. Both the first sealing ring 6 and the second sealing ring 7 are made of rubber.

[0035] refer to Figure 4 and Figure 6 The anti-loosening groove 5 allows it to fit snugly against the surface of the object, thus securing the stainless steel all-metal flange locking nut body 1 and preventing loosening. The first sealing ring 6 seals the gap between the bolt 2 and the stainless steel all-metal flange locking nut body 1, while the second sealing ring 7 seals the connection between the stainless steel all-metal flange locking nut body 1 and the object. This prevents rainwater from entering the interior of the stainless steel all-metal flange locking nut body 1 and corroding the threads, thus preventing rust on the threads of both the stainless steel all-metal flange locking nut body 1 and the bolt 2, and consequently preventing stripping of the threads between the bolt 2 and the stainless steel all-metal flange locking nut body 1, thereby facilitating its use.

[0036] Example 3: This utility model solves the problem of insufficient stability in the connection between the existing bolt 2 and the stainless steel all-metal flange locking nut body 1. The use of the limiting block 8 can improve the stability of the connection between the bolt 2 and the stainless steel all-metal flange locking nut body 1. The following is disclosed:

[0037] The top of the stainless steel all-metal flange locking nut body 1 is slidably connected to a limiting block 8, and the right end of the limiting block 8 extends into the interior of the slide groove 9 to form a locking mechanism. The slide groove 9 is opened on the bolt 2, and the slide groove 9 and the limiting block 8 are fitted together. A spring 10 is connected to the middle of the limiting block 8, and the left end of the spring 10 is connected to the interior of the stainless steel all-metal flange locking nut body 1.

[0038] refer to Figures 1 to 6 Pulling the limiting block 8 allows it to slide inside the stainless steel all-metal flange locking nut body 1. The movement of the limiting block 8 compresses the spring 10, causing it to be compressed. Then, rotating the bolt 2 allows it to move inside the stainless steel all-metal flange locking nut body 1, thus achieving a threaded connection. After connection, align the slide groove 9 with the limiting block 8. The force of the spring 10 pushes the limiting block 8 into the slide groove 9, allowing it to engage with the slide groove 9. This ensures the bolt 2 is stably fixed inside the stainless steel all-metal flange locking nut body 1, preventing loosening.

[0039] Working principle: When using this easy-to-use stainless steel all-metal flange lock nut, first, refer to... Figures 1 to 3 During disassembly, by engaging the wrench with the first retaining ring 3 and then rotating the wrench, the wrench can be moved to the second retaining ring 4. The wrench can then be rotated again to rotate the second retaining ring 4, thereby achieving the purpose of disassembly. Therefore, the stainless steel all-metal flange locking nut body 1 can be used under harsh conditions. The design of the first retaining ring 3 and the second retaining ring 4 increases the probability of unscrewing the stainless steel all-metal flange locking nut body 1, thereby achieving the purpose of ease of use.

[0040] refer to Figure 4 and Figure 6 By using the anti-loosening groove 5, the anti-loosening groove 5 can fit against the surface of the object, thereby fixing the stainless steel all-metal flange locking nut body 1 and achieving the purpose of preventing loosening. The second sealing ring 7 can seal the stainless steel all-metal flange locking nut body 1 with the object, thereby preventing corrosion of the threads of the stainless steel all-metal flange locking nut body 1 and the bolt 2, and thus preventing stripping between the bolt 2 and the stainless steel all-metal flange locking nut body 1, thereby achieving the purpose of easy use.

[0041] refer to Figures 1 to 6 Pull the limiting block 8 so that it can slide inside the stainless steel all-metal flange locking nut body 1. The movement of the limiting block 8 will squeeze the spring 10, which will then be compressed. Then rotate the bolt 2 so that it can move inside the stainless steel all-metal flange locking nut body 1. After connection, align the slide groove 9 with the limiting block 8 so that the limiting block 8 can engage with the slide groove 9, thereby achieving the purpose of preventing loosening.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easy-to-use stainless steel all-metal flange locking nut, comprising a stainless steel all-metal flange locking nut body (1), wherein the stainless steel all-metal flange locking nut body (1) is internally threaded with bolts (2). Its features are: The stainless steel all-metal flange locking nut body (1) is provided with a first retaining ring (3), and the first retaining ring (3) is hexagonal. The bottom of the first retaining ring (3) is provided with a second retaining ring (4). The second retaining ring (4) is provided on the stainless steel all-metal flange locking nut body (1), and the second retaining ring (4) is hexagonal. The second retaining ring (4) and the first retaining ring (3) are staggered. The bottom of the stainless steel all-metal flange locking nut body (1) is provided with an anti-loosening groove (5).

2. The easy-to-use stainless steel all-metal flange locking nut according to claim 1, characterized in that: The top of the stainless steel all-metal flange locking nut body (1) is nested with a first sealing ring (6), and the inner end of the first sealing ring (6) is in contact with the inner wall of the bolt (2) to form a sealing mechanism.

3. The easy-to-use stainless steel all-metal flange locking nut according to claim 1, characterized in that: The bottom of the stainless steel all-metal flange locking nut body (1) is nested with a second sealing ring (7), and the bottom of the second sealing ring (7) is higher than the anti-loosening groove (5).

4. The easy-to-use stainless steel all-metal flange locking nut according to claim 1, characterized in that: The top of the stainless steel all-metal flange locking nut body (1) is slidably connected to a limiting block (8), and the right end of the limiting block (8) extends into the interior of the slide groove (9) to form a locking mechanism.

5. The easy-to-use stainless steel all-metal flange locking nut according to claim 4, characterized in that: The groove (9) is formed on the bolt (2), and the groove (9) fits with the limiting block (8).

6. The easy-to-use stainless steel all-metal flange locking nut according to claim 4, characterized in that: A spring (10) is connected to the middle of the limiting block (8), and the left end of the spring (10) is connected to the inside of the stainless steel all-metal flange locking nut body (1).

7. The easy-to-use stainless steel all-metal flange locking nut according to claim 2, characterized in that: Both the first sealing ring (6) and the second sealing ring (7) are made of rubber.

Citation Information

Patent Citations

  • Dodecagonal flange locking nut provided with friction bulged pieces

    CN202811765U