Anti-loose nut

CN224756137UActive Publication Date: 2026-09-15YIXING RONGSHENG FASTENER CO LTD
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Patent Information

Application Number
CN202522215629.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2026-09-15
Estimated Expiration
2035-10-20

AI Technical Summary

Technical Problem

[0005]本实用新型的目的是为了解决现有技术中存在紧固螺母难以与螺栓杆螺纹连接时,造剧烈振动时容易出现松动的缺点,而提出的一种防松动螺母

Benefits of technology

[0013] 1. In this utility model, by setting a stabilizing device, the fastening nut is effectively restricted, which plays a role in stabilizing the fastening nut. This reduces the possibility that the fastening nut may detach from the bolt rod surface due to severe vibration after the threaded connection during the installation of existing equipment, causing the fastening nut of the equipment to loosen easily. This stabilizing device achieves the stabilization of the fastening nut and improves the stability of the equipment.

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Abstract

The utility model relates to nut technical field, concretely is a kind of anti-loose nut, including mounting nut, bolt rod, mounting plate, fastening nut and stabilizing device, the bolt rod is fixedly connected in the upper end of mounting nut, the mounting plate is installed in the surface of bolt rod, the surface bolt connection of bolt rod has fastening nut, the stabilizing device is installed in the surface of fastening nut, the stabilizing device includes mounting ring and contact ring, the contact ring is connected in the surface of bolt rod and is set, the contact ring is fixedly connected in the lower end of fastening nut, the surface of mounting ring and bolt rod is set and is connected, the outer surface of mounting ring is equipped with multiple equidistance limit slot, the outer surface of contact ring is fixedly connected with connecting block, the surface of connecting block is equipped with connecting groove, the inside sliding connection of connecting groove has moving block. The utility model stabilizing device, realize the stable fastening nut, improve the stability of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to an anti-loosening nut. Background Technology

[0002] Nuts and bolts are a very common fastening method in various mechanical equipment, building structures and daily necessities. However, in actual use, due to various factors, the problem of nuts loosening frequently occurs. Therefore, an anti-loosening nut is used for the installation and connection of machinery.

[0003] However, the existing equipment has the following shortcomings: during the installation of the existing equipment, after the threaded connection, the fastening nut is easily detached from the surface of the bolt rod due to severe vibration, which can cause the fastening nut of the equipment to loosen easily.

[0004] Therefore, we propose an anti-loosening nut to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where fastening nuts are difficult to connect with bolt threads, leading to loosening during severe vibrations. Therefore, this invention proposes an anti-loosening nut.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an anti-loosening nut, comprising a mounting nut, a bolt rod, a mounting plate, a fastening nut, and a stabilizing device. The bolt rod is fixedly connected to the upper end of the mounting nut. The mounting plate is mounted on the surface of the bolt rod. A fastening nut is bolted to the surface of the bolt rod. The stabilizing device is mounted on the surface of the fastening nut. The stabilizing device includes a mounting ring and a contact ring. The contact ring is sleeved and connected to the surface of the bolt rod. The contact ring is fixedly connected to the lower end of the fastening nut. The mounting ring is sleeved and connected to the surface of the bolt rod. An opening is formed on the outer surface of the mounting ring. The device has multiple equidistant limiting grooves. A connecting block is fixedly connected to the outer surface of the contact ring. A connecting groove is formed on the surface of the connecting block. A moving block is slidably connected inside the connecting groove. A limiting plate is fixedly connected to the upper end of the moving block. The limiting plate is inserted into the limiting groove. An auxiliary component is fixedly installed inside the moving block. The auxiliary component includes a connecting hole and a pressing groove. The connecting hole is formed inside the connecting groove. The pressing groove is formed on the side of the moving block. A positioning hole is formed on the surface of the connecting hole. A positioning post is slidably connected inside the pressing groove. The positioning post is inserted into the positioning hole.

[0007] Furthermore, a groove is provided on the outer surface of the bolt rod, and a slider is fixedly connected inside the contact ring. The slider is slidably connected inside the groove. By setting the slider, the contact ring can be limited to move, reducing the difficulty of the contact ring moving smoothly on the surface of the bolt rod during use.

[0008] Furthermore, a limiting block is fixedly connected to the end of the positioning post away from the positioning hole. The limiting block is slidably connected inside the pressure groove. The limiting block is provided to facilitate the limiting movement of the positioning post.

[0009] Furthermore, a first spring is fixedly connected to the end of the limiting block away from the positioning post, and the end of the first spring away from the limiting block is fixedly connected inside the pressure groove. The first spring is provided to facilitate the application of a reset force to the limiting block.

[0010] Furthermore, a pressure rod is fixedly connected to the end of the positioning post away from the limiting block, and the pressure rod is provided to facilitate the movement of the positioning post.

[0011] Furthermore, the pressure rod is slidably connected inside the connecting hole.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a stabilizing device, the fastening nut is effectively restricted, which plays a role in stabilizing the fastening nut. This reduces the possibility that the fastening nut may detach from the bolt rod surface due to severe vibration after the threaded connection during the installation of existing equipment, causing the fastening nut of the equipment to loosen easily. This stabilizing device achieves the stabilization of the fastening nut and improves the stability of the equipment.

[0014] 2. In this utility model, by setting an auxiliary component, the moving block is effectively limited and moved, which reduces the difficulty in fixing the moving block when using existing equipment, thus improving the stability of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 A three-dimensional structural diagram of an anti-loosening nut is provided for this utility model;

[0017] Figure 2 This utility model provides an explosive structure diagram of an anti-loosening nut.

[0018] Figure 3 This utility model provides a partial structural diagram of an anti-loosening nut;

[0019] Figure 4 This utility model proposes an anti-loosening nut. Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This utility model proposes an anti-loosening nut. Figure 3 Enlarged structural diagram at point B.

[0021] Legend: 1. Mounting nut; 2. Bolt rod; 3. Mounting plate; 4. Fastening nut; 5. Stabilizing device; 51. Mounting ring; 52. Contact ring; 53. Slide groove; 54. Slider; 55. Limiting groove; 56. Connecting block; 57. Limiting plate; 58. Connecting groove; 59. Moving block; 6. Auxiliary component; 61. Connecting hole; 62. Positioning hole; 63. Pressing groove; 64. Positioning post; 65. Pressing rod; 66. Limiting block; 67. First spring. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figures 1-5 This utility model provides a technical solution: an anti-loosening nut, including a mounting nut 1, a bolt rod 2, a mounting plate 3, a fastening nut 4 and a stabilizing device 5. The bolt rod 2 is fixedly connected to the upper end of the mounting nut 1, the mounting plate 3 is installed on the surface of the bolt rod 2, and the fastening nut 4 is bolted to the surface of the bolt rod 2.

[0024] Mounting nut 1 is a high-strength hexagonal nut with precise threads; bolt rod 2 is made of alloy steel with chrome plating for rust prevention; mounting plate 3 is a metal plate with strong load-bearing capacity; fastening nut 4 is an anti-loosening nut that fits tightly.

[0025] The following section will explain the specific setup and function of its stabilizing device 5 and auxiliary components 6.

[0026] In this embodiment: the stabilizing device 5 is installed on the surface of the fastening nut 4. The stabilizing device 5 includes a mounting ring 51 and a contact ring 52. The contact ring 52 is sleeved and connected to the surface of the bolt rod 2 and fixedly connected to the lower end of the fastening nut 4. The mounting ring 51 is sleeved and connected to the surface of the bolt rod 2. The outer surface of the mounting ring 51 has a plurality of equidistant limiting grooves 55. The outer surface of the contact ring 52 is fixedly connected to a connecting block 56. The surface of the connecting block 56 has a connecting groove 58. The interior of the connecting groove 58 is slidably connected to a moving block 59. The upper end of the moving block 59 is fixedly connected to a limiting plate 57. The limiting plate 57 is inserted and connected to the interior of the limiting groove 55. The interior of the moving block 59 is fixedly provided with an auxiliary component 6. The auxiliary component 6 includes a connecting hole 61 and a pressing groove 63. The connecting hole 61 is opened inside the connecting groove 58. The pressing groove 63 is opened on the side of the moving block 59. The surface of the connecting hole 61 has a positioning hole 62. The interior of the pressing groove 63 is slidably connected to a positioning post 64. The positioning post 64 is inserted and connected to the interior of the positioning hole 62.

[0027] Specifically, a groove 53 is provided on the outer surface of the bolt rod 2, and a slider 54 is fixedly connected inside the contact ring 52. The slider 54 is slidably connected inside the groove 53.

[0028] In this embodiment: by setting the slider 54, the contact ring 52 can be limited to move, which reduces the difficulty of the contact ring 52 moving smoothly on the surface of the bolt rod 2 during use.

[0029] Specifically, a limiting block 66 is fixedly connected to the end of the positioning post 64 away from the positioning hole 62. The limiting block 66 is slidably connected inside the pressure groove 63. The limiting block 66 is set to facilitate the limiting movement of the positioning post 64.

[0030] Specifically, a first spring 67 is fixedly connected to the end of the limiting block 66 away from the positioning post 64. The end of the first spring 67 away from the limiting block 66 is fixedly connected to the inside of the pressure groove 63. The first spring 67 is provided to facilitate the application of a reset spring force to the limiting block 66.

[0031] Specifically, a pressure rod 65 is fixedly connected to the end of the positioning post 64 away from the limiting block 66. The pressure rod 65 is provided to facilitate the movement of the positioning post 64.

[0032] Specifically, the pressure rod 65 is slidably connected inside the connecting hole 61.

[0033] Working Principle: During installation, the user inserts the bolt rod 2 through the mounting plate 3, then threads the fastening nut 4 onto the surface of the bolt rod 2. During installation, the mounting plate 3 is first placed onto the bolt rod 2, and the fastening nut 4 is tightened until it fits snugly against the surface of the mounting plate 3. At this time, the contact ring 52 moves downwards synchronously with the fastening nut 4, and its internal slider 54 slides along the groove 53 of the bolt rod 2, ensuring coaxial movement of the contact ring 52 and the fastening nut 4. The moving block 59 slides along the connecting groove 58 of the connecting block 56, causing the limiting plate 57 to insert into the limiting groove 55 of the mounting ring 51 to secure the fastening nut 4. Through the engagement of the limiting plate 57 and the limiting groove 55, the fastening nut 4 is secured. The relative rotation between the mounting ring 51 and the contact ring 52 prevents the fastening nut 4 from loosening. After the limiting plate 57 is inserted into the limiting groove 55, the positioning pin 64 pops out from the pressure groove 63 under the action of the first spring 67 and inserts into the positioning hole 62 of the connecting hole 61, locking the position of the moving block 59. By setting the stabilizing device 5, the fastening nut 4 is effectively restricted, which plays a role in stabilizing the fastening nut 4. This reduces the possibility that the fastening nut 4 may detach from the surface of the bolt rod 2 after the threaded connection is made during the installation of the existing equipment, which may cause the fastening nut 4 to loosen easily due to severe vibration. This stabilizing device 5 stabilizes the fastening nut 4 and improves the stability of the equipment.

[0034] When the user presses the pressure rod 65, the positioning post 64 moves, causing the limiting block 66 to compress the first spring 67 inside the pressure groove 63, generating elastic force. The positioning post 64 then disengages from the positioning hole 62, and the moving block 59, freed from restraint, moves. The pressure rod 65 then moves the moving block 59 within the connecting groove 58 of the connecting block 56. By setting the auxiliary component 6, the moving block 59 is effectively limited, thus reducing the difficulty in securing the moving block 59 during existing equipment use and preventing it from being difficult to position. This auxiliary component 6 achieves positioning of the moving block 59, improving the stability of the equipment.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An anti-loosening nut, comprising a mounting nut (1), a bolt rod (2), a mounting plate (3), a fastening nut (4), and a stabilizing device (5), characterized in that: The bolt rod (2) is fixedly connected to the upper end of the mounting nut (1), the mounting plate (3) is installed on the surface of the bolt rod (2), and the surface of the bolt rod (2) is bolted with a fastening nut (4); The stabilizing device (5) is installed on the surface of the fastening nut (4). The stabilizing device (5) includes a mounting ring (51) and a contact ring (52). The contact ring (52) is sleeved and connected to the surface of the bolt rod (2). The contact ring (52) is fixedly connected to the lower end of the fastening nut (4). The mounting ring (51) is sleeved and connected to the surface of the bolt rod (2). The outer surface of the mounting ring (51) is provided with multiple equidistant limiting grooves (55). The outer surface of the contact ring (52) is fixedly connected with a connecting block (56). The surface of the connecting block (56) is provided with a connecting groove (58). A moving block is slidably connected inside the connecting groove (58). 59), the upper end of the movable block (59) is fixedly connected to a limiting plate (57), the limiting plate (57) is inserted into the inside of the limiting groove (55), the inside of the movable block (59) is fixedly provided with an auxiliary component (6), the auxiliary component (6) includes a connecting hole (61) and a pressing groove (63), the connecting hole (61) is opened inside the connecting groove (58), the pressing groove (63) is opened on the side of the movable block (59), the surface of the connecting hole (61) is provided with a positioning hole (62), the inside of the pressing groove (63) is slidably connected with a positioning post (64), and the positioning post (64) is inserted into the inside of the positioning hole (62).

2. The anti-loosening nut according to claim 1, characterized in that: The outer surface of the bolt rod (2) is provided with a groove (53), and a slider (54) is fixedly connected inside the contact ring (52). The slider (54) is slidably connected inside the groove (53).

3. The anti-loosening nut according to claim 2, characterized in that: The end of the positioning post (64) away from the positioning hole (62) is fixedly connected to a limiting block (66), which is slidably connected inside the pressure groove (63).

4. The anti-loosening nut according to claim 3, characterized in that: The end of the limiting block (66) away from the positioning post (64) is fixedly connected to a first spring (67), and the end of the first spring (67) away from the limiting block (66) is fixedly connected to the inside of the pressure groove (63).

5. The anti-loosening nut according to claim 4, characterized in that: A pressure rod (65) is fixedly connected to the end of the positioning post (64) away from the limiting block (66).

6. The anti-loosening nut according to claim 5, characterized in that: The pressure rod (65) is slidably connected inside the connecting hole (61).