Chen locknut

Abstract

A Chen locknut is composed of three parts, namely a common screw rod 1, a lower concave nut 2 and an upper convex sleeve nut 3. The structure is simple, the habitual use mode is not changed, the threads are tightly engaged after fastening, and the anti-loosening purpose is achieved. And compared with foreign like products, the device has better effect and wide popularization space. Through practice, the Chen's anti-loosening nut is stable in fastening, the upper protruding sleeve nut is tightly embedded into the threads through meshing of the upper concave nut, and the anti-loosening effect is achieved.

Description

Technical Field

[0001] Chen's anti-loosening nut belongs to the field of mechanical engineering and fastener technology.

[0002] In mechanical connections, loose screws may lead to equipment failure, safety hazards and other problems, so the development and application of anti-loosening screws are crucial.

[0003] In terms of materials, special alloy materials are used or the screws are surface treated to increase friction and fatigue resistance.

[0004] From the perspective of structural design, common anti-loosening screws include double nuts for anti-loosening, slotted nuts with cotter pins for anti-loosening, stop washers for anti-loosening, screws with locking plates, etc.

[0005] In the manufacturing process, high-precision processing is used to ensure the dimensional accuracy and surface quality of the screws, which helps to improve the anti-loosening effect.

[0006] In terms of mechanical analysis, in-depth research is conducted on the stress conditions of screw connections under working conditions such as vibration, impact, and temperature changes to provide a theoretical basis for anti-loosening design.

[0007] The comprehensive research and application of these aspects together constitute the technical field of anti-loosening screws.

[0008] Bolt and nut connections are widely used in many fields. However, under conditions of vibration, impact or long-term use, the nuts may loosen, causing the bolts and nuts to fail to perform their proper tightening function, thus posing safety hazards or affecting the normal operation of the equipment.

[0009] For example, in bridges, tracks, airplanes, trains, cars, machine tools and other equipment, loosening of bolts and nuts may lead to serious consequences. In order to solve this problem, anti-loosening bolt technology came into being. Background Art

[0010] Traditional anti-loosening methods, such as using spring washers, double nuts, increasing friction, etc., can improve the fastening ability of bolts and nuts to a certain extent, but loosening may still occur under harsh working conditions such as high-intensity vibration.

[0011] Therefore, people continue to study and improve anti-loosening bolt technology. Some common anti-loosening bolt designs include: changing the thread structure: setting threads of different rotation directions on the screw of the bolt, matching nuts of corresponding rotation directions, so that the nuts restrain each other to achieve the anti-loosening effect.

[0012] Add auxiliary components: such as setting up connecting sleeves, sleeves and other structures, through the matching relationship between them to limit the rotation of the nut and achieve the anti-loosening function. Some will also set compression springs between related components to prevent the components from detaching due to vibration, further enhancing the anti-loosening effect.

[0013] - Special nut design: For example, a double-nut reverse thread structure is used, where a circular arc groove is set on the side of one of the nuts, which cooperates with the positioning pin to achieve self-locking and mutual locking of the nuts, thereby improving reliability and safety in a vibration environment.

[0014] The development of anti-loosening bolt technology aims to improve the stability and reliability of bolt and nut connections and reduce accidents and maintenance costs caused by loosening. Different anti-loosening bolt technologies have their own characteristics and applicable scenarios. Their design and manufacturing need to comprehensively consider multiple factors such as materials, structure, and processing technology.

[0015] Anti-loosening bolts are widely used in fields with high requirements for connection reliability, such as civil engineering, machine tools, high-speed rail, and aerospace. With the continuous advancement of technology, anti-loosening bolt technology is also constantly innovating and improving to meet the requirements of various complex working conditions. Summary of the invention

[0016] 1. Chen's anti-loosening nut consists of three parts: 1. ordinary screw, 2. concave nut, 3. toothed nut with convex sleeve.

[0017] 2. Chen's anti-loosening nut has a simple structure and does not change the usual way of use. After tightening, it tightly bites the thread to achieve the purpose of preventing loosening.

[0018] 3. Chen's anti-loosening nuts are more effective than similar foreign products and have broad room for promotion. Figure content

[0019] Figure 1 Ordinary screw.

[0020] Figure 2 Recessed locking nut.

[0021] Figure 3 Put on the convex toothed nut.

[0022] Figure 4 The recessed locking nut is screwed into the screw to compress the fastener.

[0023] Figure 5 The concave locking nut and the upper convex sleeve toothed nut are screwed into the screw rod at the same time.

Claims

1. Chen's anti-loosening nut consists of three parts:

1. ordinary screw, 2. concave nut, 3. toothed nut with convex sleeve.

2. Chen's anti-loosening nut has a simple structure and does not change the usual way of use. After tightening, it tightly bites the thread to achieve the purpose of preventing loosening.

3. Chen's anti-loosening nut is more effective than similar foreign products, has a wide range of promotion space, has a simple structure, does not change the customary way of use, and tightly engages the thread after tightening to achieve the purpose of preventing loosening.

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