High-strength anti-back-off slot nut

CN224756126UActive Publication Date: 2026-09-15PINGHU TAOQIANG MASCH CO LTD
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Patent Information

Application Number
CN202521556291.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-09-15
Estimated Expiration
2035-07-24

AI Technical Summary

Benefits of technology

本实用新型通过在螺母主体背离工件的一端一体成型设置辅助环,然后配合辅助环内设置夹持机构,使螺母主体与螺栓连接对工件外壁进行夹持紧固后,能够通过辅助环内的夹持机构对螺栓轴壁进行夹持,实现螺母主体与螺栓之间径向的夹紧限位,有效避免螺母主体在螺栓上出现退槽松动的问题,从而提高对工件的紧固效果。

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Abstract

The utility model discloses a high -strength anti -retreating groove nut relates to nut technical field, including the nut main part, the end face of the integral forming of auxiliary ring is in the nut main part, and the inside diameter of auxiliary ring is greater than the inside diameter of nut main part, and clamping mechanism sets up in the inside wall position of auxiliary ring, makes the clamping mechanism clamping bolt outer wall and carries out the location of auxiliary ring radial rotation. The utility model discloses through integral forming setting up the auxiliary ring at the one end of the nut main part away from workpiece, then cooperate and set up the clamping mechanism in the auxiliary ring, make the nut main part and bolt connection to the outer wall of workpiece and carry out the clamping fastening, can through the clamping mechanism in the auxiliary ring to the bolt axle wall and carry out the clamping, realize the clamping location of radial between the nut main part and bolt, effectively avoid the problem that the nut main part appears to retreat the groove loose on the bolt, thereby improve the fastening effect to workpiece.
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Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a high-strength anti-retrofit nut. Background Technology

[0002] Nuts are a common type of fastener, usually used in conjunction with bolts. They are used to clamp the workpiece from both sides through a threaded connection with the bolt to achieve a fixed position.

[0003] Existing nuts primarily achieve their position on the workpiece's outer wall by rotating and moving on the screw's outer wall. Reverse rotation of the nut on the screw allows it to move backward, loosening the groove. However, current nuts lack an independent anti-rotation and anti-grooving function. This means that during use, external factors (such as workpiece vibration) can easily cause the nut to flip and dislodge, reducing its tightening effect and affecting the stability of the fastening. Therefore, we propose a high-strength anti-grooving nut. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength anti-retrograde nut to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength anti-reverse groove nut, comprising: Nut body; An auxiliary ring is integrally formed on the end face of the nut body, and the inner diameter of the auxiliary ring is larger than the inner diameter of the nut body. A clamping mechanism is provided on the inner wall of the auxiliary ring to limit the radial rotation of the auxiliary ring by clamping the outer wall of the bolt.

[0006] Preferably, there are two clamping mechanisms symmetrically arranged on both sides of the auxiliary ring, and the clamping mechanism includes: A clamping block is movably disposed within the auxiliary ring and can extend and retract along the inner wall of the auxiliary ring. A threaded groove is provided on the side of the clamping block facing the inner side of the auxiliary ring. A knob screw is threaded into the outer peripheral wall of the auxiliary ring, and one end of the knob screw extends into the auxiliary ring and is rotatably connected to the center of the clamping block.

[0007] Preferably, the auxiliary ring has a storage groove inside, the outer wall of the pressing block is movably inserted into the inner wall of the storage groove, the outer peripheral wall of the auxiliary ring has a screw hole communicating with the storage groove, and the outer wall of the knob screw is threaded into the inner wall of the screw hole.

[0008] Preferably, the width of the clamping block is greater than the width of the storage groove, and the side of the clamping block away from the knob screw is an arc surface, so that the clamping block maintains the same inner diameter as the nut body when it is in the initial position in the storage groove.

[0009] Preferably, an amplification ring is integrally formed on the side of the nut body opposite to the auxiliary ring, a clamping ring is provided on the side of the amplification ring opposite to the nut body, and an elastic element is provided between the amplification ring and the clamping ring.

[0010] Preferably, the elastic elements are multiple and arranged in a ring array between the amplification ring and the compression ring. The elastic elements include elastic springs. A cylindrical block is fixedly connected to the side of the compression ring near the amplification ring. A telescopic groove is opened on the side of the amplification ring near the compression ring to movably insert into the cylindrical block. The elastic spring is fixedly connected between the cylindrical block and the opposite side of the telescopic groove.

[0011] Compared with the prior art, the technical effects of this utility model are as follows: This invention integrates an auxiliary ring at one end of the nut body away from the workpiece, and then uses a clamping mechanism within the auxiliary ring to clamp and fasten the nut body to the outer wall of the workpiece after it is connected to the bolt. The clamping mechanism within the auxiliary ring then clamps the bolt shaft wall, achieving radial clamping and limiting between the nut body and the bolt. This effectively prevents the nut body from loosening on the bolt and improves the fastening effect on the workpiece. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front cross-sectional view of the present invention.

[0014] Figure 3 This is a three-dimensional structural diagram of the clamping block of this utility model.

[0015] Figure 4 This is a partial sectional view of the auxiliary ring of this utility model.

[0016] In the diagram: 100, Nut body; 101, Auxiliary ring; 102, Storage groove; 103, Screw hole; 104, Clamping block; 105, Threaded groove; 106, Knob screw; 107, Amplification ring; 108, Clamping ring; 109, Cylindrical block; 110, Telescopic groove; 111, Elastic compression spring. Detailed Implementation

[0017] 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.

[0018] This utility model provides, for example Figures 1-4 The high-strength anti-grooving nut shown includes a nut body 100 and an auxiliary ring 101 integrally formed on the end face of the nut body 100. The inner diameter of the auxiliary ring 101 is larger than the inner diameter of the nut body 100, so that after the bolt shank is threadedly pressed into the inner wall of the nut body 100, it can smoothly pass through the inner cavity of the auxiliary ring 101. A clamping mechanism is set at the inner wall of the auxiliary ring 101, so that the clamping mechanism clamps the outer wall of the bolt to limit the radial rotation of the auxiliary ring 101. After the bolt shank passes through the inner cavity of the auxiliary ring 101, the clamping mechanism is driven to move on the auxiliary ring 101 to clamp and fix the bolt shank, thereby achieving radial limitation between the auxiliary ring 101 and the bolt shank. With the nut body 100 and the auxiliary ring 101 being integrally fixed, the bolt will rotate when the nut body 100 rotates, so that the nut body 100 and the bolt cannot rotate relative to each other, thus avoiding the problem of grooves appearing on the bolt in the nut body 100.

[0019] Preferably, there are two clamping mechanisms symmetrically arranged on both sides of the auxiliary ring 101. Each clamping mechanism includes a clamping block 104 and a knob screw 106. The clamping block 104 is movably disposed within the auxiliary ring 101 and can extend and retract along the inner wall of the auxiliary ring 101. A threaded groove 105 is formed on the side of the clamping block 104 facing the inner side of the auxiliary ring 101. The knob screw 106 is threaded into the outer peripheral wall of the auxiliary ring 101. One end of the knob screw 106 extends into the auxiliary ring 101 and is rotatably connected to the middle of the clamping block 104. A storage groove 102 is formed inside the auxiliary ring 101. The outer wall of the clamping block 104 is movably inserted into the inner wall of the storage groove 102. A screw hole 103 is formed on the outer peripheral wall of the auxiliary ring 101, communicating with the storage groove 102. The outer wall of the knob screw 106 is threaded into the inner wall of the storage groove 102. The screw hole 103 has a threaded connection on its inner wall; the outer wall of the clamping block 104 has a threaded groove 105 that matches the inner wall of the nut body 100 and has the same inner diameter as the internal threaded groove of the inner wall of the nut body 100. This allows the bolt to form a threaded connection with the threaded groove 105 on the outer wall of the clamping block 104 when it extends into the auxiliary ring 101, increasing the contact area between the clamping block 104 and the outer wall of the bolt shank and improving the clamping effect. After the nut body 100 is installed in place, simply use a screwdriver to turn the knob screw 106, which will move the clamping block 104 towards the outer wall of the bolt in the receiving groove 102 to generate a squeezing effect. With the two clamping blocks 104 squeezing the outer wall of the bolt in opposite directions, the clamping effect can be achieved, restricting the bolt from rotating radially within the nut body 100.

[0020] It should be noted that the width of the clamping block 104 is greater than the width of the receiving groove 102, and the side of the clamping block 104 away from the knob screw 106 is an arc surface, so that when the clamping block 104 is in the initial position in the receiving groove 102, it maintains the same inner diameter as the nut body 100. The width of the clamping block 104 is greater than the receiving groove 102, so that when the clamping block 104 is in the initial state, the end of the clamping block 104 protrudes from the port of the receiving groove 102, thereby meeting the requirement of having the same inner diameter as the inner wall of the nut body 100.

[0021] Example 2: Based on Example 1, an amplification ring 107 is integrally formed on the side of the nut body 100 away from the auxiliary ring 101. A clamping ring 108 is provided on the side of the amplification ring 107 away from the nut body 100. An elastic element is provided between the amplification ring 107 and the clamping ring 108. Multiple elastic elements are arranged in a ring array between the amplification ring 107 and the clamping ring 108. The side of the clamping ring 108 away from the amplification ring 107 has a frosted surface, which can improve frictional resistance. When the nut body 100 provides clamping force, the elastic element is compressed and undergoes elastic deformation, thereby providing a thrust to the clamping ring 108. This allows the end face of the clamping ring 108 to maintain a tight compression with the outer wall of the workpiece. Combined with the wear-resistant and anti-slip properties of the end face of the clamping ring 108, it can effectively prevent the nut body 100 from rotating, thereby further improving the installation stability of the nut body 100. The elastic element includes... An elastic spring 111 is used to fix a cylindrical block 109 to the side of the clamping ring 108 near the amplification ring 107. The amplification ring 107 has a telescopic groove 110 on the side near the clamping ring 108 that can be movably inserted into the cylindrical block 109. The elastic spring 111 is fixedly connected between the cylindrical block 109 and the telescopic groove 110 on opposite sides. By utilizing the sliding insertion between the cylindrical block 109 and the telescopic groove 110, the clamping ring 108 and the amplification ring 107 are limited and guided, allowing the clamping ring 108 to move along the axial direction of the amplification ring 107. When the elastic spring 111 provides elastic thrust, the nut body 100 is screwed to the locking position. The elastic spring 111 is then pressed into place to provide a compressive force to the clamping ring 108, keeping the end face of the clamping ring 108 tightly pressed against the outer wall of the workpiece. This increases the frictional resistance between the clamping ring 108 and the workpiece, making the assembly and fastening of the nut body 100 on the workpiece more stable.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength anti-loosening nut, characterized in that, include: Nut body (100); An auxiliary ring (101) is integrally formed on the end face of the nut body (100), and the inner diameter of the auxiliary ring (101) is larger than the inner diameter of the nut body (100); A clamping mechanism is provided on the inner wall of the auxiliary ring (101) to limit the radial rotation of the auxiliary ring (101) by clamping the outer wall of the bolt. An amplification ring (107) is integrally formed on the side of the nut body (100) away from the auxiliary ring (101). A clamping ring (108) is provided on the side of the amplification ring (107) away from the nut body (100). An elastic element is provided between the amplification ring (107) and the clamping ring (108).

2. The high-strength anti-loosening nut according to claim 1, characterized in that, The clamping mechanism comprises two symmetrically arranged on both sides of the auxiliary ring (101), and the clamping mechanism includes: A clamping block (104) is movably disposed within an auxiliary ring (101) and can extend and retract along the inner wall of the auxiliary ring (101). A threaded groove (105) is provided on the side of the clamping block (104) facing the inner side of the auxiliary ring (101). A knob screw (106) is threaded into the outer peripheral wall of the auxiliary ring (101). One end of the knob screw (106) extends into the auxiliary ring (101) and is rotatably connected to the middle of the clamping block (104).

3. A high-strength anti-loosening nut according to claim 2, characterized in that, The auxiliary ring (101) has a storage groove (102) inside. The outer wall of the pressing block (104) is movably inserted into the inner wall of the storage groove (102). The outer peripheral wall of the auxiliary ring (101) has a screw hole (103) communicating with the storage groove (102). The outer wall of the knob screw (106) is threaded into the inner wall of the screw hole (103).

4. A high-strength anti-loosening nut according to claim 3, characterized in that, The width of the clamping block (104) is greater than the width of the storage groove (102), and the side of the clamping block (104) away from the knob screw (106) is an arc surface, so that the clamping block (104) maintains the same inner diameter as the nut body (100) when it is in the initial position in the storage groove (102).

5. A high-strength anti-loosening nut according to claim 1, characterized in that, The elastic elements are multiple and arranged in a ring array between the amplification ring (107) and the clamping ring (108). The elastic elements include elastic springs (111). A cylindrical block (109) is fixedly connected to the side of the clamping ring (108) near the amplification ring (107). A telescopic groove (110) is opened on the side of the amplification ring (107) near the clamping ring (108) to be movably inserted into the cylindrical block (109). The elastic spring (111) is fixedly connected between the cylindrical block (109) and the telescopic groove (110) on opposite sides.