Hexagonal nut with anti-loosening structure

By designing the chute and movable block structure on the hex nut, combined with the fixing method of locking the shell and bolts, the problems of loosening and rusting of the traditional hex nut are solved, achieving higher stability and durability.

CN222731902UActive Publication Date: 2025-04-08HEBEI NIES METAL PROD CO LTD
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Patent Information

Application Number
CN202421654033.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-08
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Traditional hexagon nuts are prone to loosening when used for too long or have a high vibration frequency, and may rust in humid environments.

Method used

A hexagon nut with an anti-loose structure is designed. By opening a sliding groove on the surface of the nut and inserting a movable block, the first convex teeth are fixedly connected on the surface of the movable block, and the locking shell is connected to the locking shell by bolts to improve stability. At the same time, an elastic ball and a drying ring are provided in the sealing cover shell to prevent loosening and rust.

Benefits of technology

Effectively prevent the hexagonal nut from loosening, improve durability in humid environments, and keep the interior dry and extend the service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hexagonal nut with an anti-loosening structure, including a hexagonal nut and a sealing cover shell, a sliding groove is provided on the surface of the hexagonal nut, a movable block is inserted into the inner side of the sliding groove, a first convex tooth is fixedly connected to the surface of the movable block, a locking shell is sleeved on the surface of the hexagonal nut, a fixed block is fixedly connected to the surface of the hexagonal nut, an elastic ball is provided on the surface of the fixed block, a groove is provided on the inner side of the sealing cover shell, an extrusion sliding groove is provided on the inner side of the sealing cover shell, and the surface of the elastic ball is inserted into the groove. The hexagonal nut with an anti-loosening structure is provided with a locking shell sleeved on the surface of the hexagonal thread. When the locking shell is pressed downward, the movable block is squeezed to slide in the sliding groove, and the first convex tooth is more closely attached to the surface of the threaded column to prevent the hexagonal nut from loosening. When the sealing cover shell is pressed, the elastic ball slides in the extrusion groove and enters the groove, thereby clamping the sealing cover shell so that it cannot be easily opened.
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Description

Technical Field

[0001] The utility model belongs to the technical field of nuts, and particularly relates to a hexagonal nut with an anti-loosening structure. Background Art

[0002] A nut is a cap that is screwed together with a bolt or screw for fastening. It is a component that all manufacturing machinery must use. According to the different materials, it is divided into several major types such as carbon steel, stainless steel, and non-ferrous metals. The nut is a part that tightly connects mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner thread.

[0003] The hexagonal nuts currently on the market have the following problems in actual use:

[0004] 1. Traditional hexagonal nuts are more likely to rotate and loosen if they are used for too long or encounter high vibration frequencies.

[0005] 2. Traditional hexagonal nuts, when used outdoors, are often exposed to humid environments such as rain. After long-term use, the inside of the nuts may be in a humid state and are more likely to rust. Utility Model Content

[0006] The utility model aims to provide a hexagonal nut with an anti-loosening structure to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a hexagonal nut with an anti-loosening structure, comprising a hexagonal nut and a sealing cover shell, preferably, a slide groove is provided on the surface of the hexagonal nut, a movable block is inserted into the inner side of the slide groove, a first convex tooth is fixedly connected to the surface of the movable block, the surface of the hexagonal nut is sleeved with a locking shell, a first threaded hole is provided on the surface of the hexagonal nut, a second threaded hole is provided on the surface of the locking shell, a bolt is inserted into the inner side of the first threaded hole, and a bolt is inserted into the inner side of the second threaded hole.

[0008] Preferably, the surface of the hexagonal nut is fixedly connected to the fixing block, the surface of the fixing block is provided with an elastic ball, the inner side of the sealing cover shell is provided with a groove, the inner side of the sealing cover shell is provided with an extrusion groove, the surface of the elastic ball is inserted into the groove, and the surface of the locking shell is bonded with a drying ring.

[0009] Preferably, the bottom of the hexagonal nut is fixedly connected to a locking ring, the top of the locking ring is fixedly connected to a fixing block, and the bottom of the locking ring is fixedly connected to the second protruding tooth.

[0010] Preferably, the first protruding teeth are symmetrically distributed, and the number of the bolts is two.

[0011] Preferably, a sealing ring is bonded to the bottom of the sealing cover housing, and a perforation is provided on the surface of the locking housing.

[0012] Preferably, the elastic balls are distributed in an annular form, and the grooves are distributed in an annular form.

[0013] The utility model has the following advantages:

[0014] 1. A hexagonal nut with an anti-loosening structure has a sliding groove on the surface of the hexagonal nut, a movable block is inserted into the inner side of the sliding groove, a first convex tooth is fixedly connected to the surface of the movable block, a locking shell is sleeved on the surface of the hexagonal nut, a first threaded hole is opened on the surface of the hexagonal nut, a second threaded hole is opened on the surface of the locking shell, a bolt is inserted into the inner side of the first threaded hole, and a bolt is inserted into the inner side of the second threaded hole. In this way, a locking shell is sleeved on the surface of the hexagonal thread. When the shell is pressed downward, the movable block will be squeezed to slide in the sliding groove, and then the first convex tooth will be more firmly fixed on the surface of the threaded column, thereby preventing the hexagonal nut from loosening to a large extent.

[0015] 2. A hexagonal nut with an anti-loosening structure is fixedly connected to a fixing block through the surface of the hexagonal nut, an elastic ball is provided on the surface of the fixing block, a groove is provided on the inner side of a sealing cover shell, an extrusion groove is provided on the inner side of the sealing cover shell, the surface of the elastic ball is inserted into the groove, and a drying ring is bonded to the surface of the locking shell. When the sealing cover shell is installed on the hexagonal thread, the sealing cover shell is pressed, the elastic ball will slide in the extrusion groove, and then enter the groove, thereby clamping the sealing cover shell so that it will not be easily opened, and a drying ring is provided inside it to better keep the inside dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the locking housing structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the sealing cover housing structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the second convex tooth structure of the utility model.

[0021] Explanation of the markings in the figure: 1. Hexagonal nut; 2. Locking housing; 3. Locking ring; 4. First convex tooth; 5. Slide groove; 6. Movable block; 7. First threaded hole; 8. Bolt; 9. Second threaded hole; 10. Perforation; 11. Drying ring; 12. Elastic ball; 13. Sealing cover housing; 14. Sealing ring; 15. Groove; 16. Extrusion groove; 17. Second convex tooth; 18; Fixed block. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a hexagonal nut with an anti-loosening structure of the utility model in conjunction with the accompanying drawings.

[0028] like Figure 1-4 As shown, a hexagonal nut with an anti-loosening structure of the utility model comprises a hexagonal nut 1 and a sealing cover shell 13, a sliding groove 5 is provided on the surface of the hexagonal nut 1, a movable block 6 is inserted into the inner side of the sliding groove 5, a first convex tooth 4 is fixedly connected to the surface of the movable block 6, and a locking shell 2 is sleeved on the surface of the hexagonal nut 1. When the locking shell 2 is sleeved on the surface of the hexagonal nut 1, the inner side of the locking shell 2 will squeeze the movable block 6, so that the movable block 6 will push the first convex tooth 4 to fit tightly into the threaded column, thereby greatly reducing the rotation of the hexagonal nut 1, a first threaded hole 7 is provided on the surface of the hexagonal nut 1, and a second threaded hole 9 is provided on the surface of the locking shell 2. A bolt 8 is inserted into the inner side of the first threaded hole 7, and a bolt 8 is inserted into the inner side of the second threaded hole 9. Fixing the locking shell 2 by the bolt 8 can improve the stability of the device, so that the locking shell 2 will not fall off and cause the anti-loosening device to fail.

[0029] The surface of the hexagonal nut 1 is fixedly connected to the fixing block 18, the surface of the fixing block 18 is provided with an elastic ball 12, the inner side of the sealing cover shell 13 is provided with a groove 15, the inner side of the sealing cover shell 13 is provided with an extrusion groove 5, the surface of the elastic ball 12 is inserted into the groove 15, and the surface of the locking shell 2 is bonded with a drying ring 11. When the sealing cover shell 13 is installed on the hexagonal thread, the sealing cover shell 13 is pressed, the elastic ball 12 will slide in the extrusion groove 16, and then enter the groove 15, thereby clamping the sealing cover shell 13 so that it will not be easily opened, and the drying ring 11 is provided inside it to better keep the inside dry.

[0030] The bottom of the hexagonal nut 1 is fixedly connected to the locking ring 3, the top of the locking ring 3 is fixedly connected to the fixing block 18, and the bottom of the locking ring 3 is fixedly connected to the second protruding tooth 17. Therefore, when the hexagonal nut 1 is tightened, the second protruding tooth 17 will fit tightly on the fixed position plane, thereby preventing the hexagonal nut 1 from loosening to a large extent.

[0031] The first protruding teeth 4 are symmetrically distributed, and there are two bolts 8. Such symmetrical first protruding teeth 4 increase the force-bearing area of ​​the hexagonal nut 1, making it more difficult to loosen to a greater extent.

[0032] The sealing ring 14 is bonded to the bottom of the sealing cover housing 13, and a through hole 10 is provided on the surface of the locking housing 2, so that the drying ring 11 can absorb moisture at the connection between the threaded column and the hexagonal thread to keep it dry.

[0033] The elastic balls 12 are distributed in an annular form, and the grooves 15 are distributed in an annular form. A large number of elastic balls 12 are stuck inside the grooves 15 so that the sealing cover housing 13 will not be easily opened, thereby greatly improving the stability of the device.

[0034] The working principle of the hexagonal nut with anti-loosening structure is as follows: when the nut needs to be used, the threaded column and the hexagonal thread are first fixed, and then when the locking shell 2 is sleeved on the surface of the hexagonal nut 1, the inner side of the locking shell 2 will squeeze the movable block 6, so that the movable block 6 will push the first convex tooth 4 to fit closely with the threaded column, thereby greatly reducing the rotation of the hexagonal nut 1, and then the locking shell 2 and the hexagonal nut 1 are connected by bolts 8, which can improve the stability of the device, so that the locking shell 2 will not fall off and cause the anti-loosening device to fail, and finally the sealing cover shell 13 is installed on the surface of the hexagonal nut 1, and the sealing cover shell 13 is pressed to make the elastic ball 12 slide in the extrusion groove 16 and then enter the groove 15, thereby clamping the sealing cover shell 13 so that it will not be easily opened, and the surface of the locking shell 2 is provided with perforations 10, and the drying ring 11 can absorb the moisture at the connection between the threaded column and the hexagonal thread to keep it dry, and a sealing ring 14 is provided at the bottom of the sealing cover shell 13, so that the hexagonal nut 1 is in a sealed environment, and the drying ring 11 is provided inside it to better keep its internal dryness.

[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A hexagonal nut with an anti-loosening structure, comprising a hexagonal nut (1) and a sealing cover housing (13), characterized in that: A sliding groove (5) is provided on the surface of the hexagonal nut (1), a movable block (6) is inserted into the inner side of the sliding groove (5), the surface of the movable block (6) is fixedly connected to the first protruding tooth (4), the surface of the hexagonal nut (1) is sleeved on the locking shell (2), a first threaded hole (7) is provided on the surface of the hexagonal nut (1), a second threaded hole (9) is provided on the surface of the locking shell (2), a bolt (8) is inserted into the inner side of the first threaded hole (7), and a bolt (8) is inserted into the inner side of the second threaded hole (9).

2. The hexagonal nut with anti-loosening structure according to claim 1, characterized in that: The surface of the hexagonal nut (1) is fixedly connected to a fixing block (18), the surface of the fixing block (18) is provided with an elastic ball (12), the inner side of the sealing cover shell (13) is provided with a groove (15), the inner side of the sealing cover shell (13) is provided with an extrusion groove (5), the surface of the elastic ball (12) is inserted into the groove (15), and the surface of the locking shell (2) is bonded to a drying ring (11).

3. The hexagonal nut with anti-loosening structure according to claim 1, characterized in that: The bottom of the hexagonal nut (1) is fixedly connected to a locking ring (3), the top of the locking ring (3) is fixedly connected to a fixing block (18), and the bottom of the locking ring (3) is fixedly connected to a second protruding tooth (17).

4. The hexagonal nut with anti-loosening structure according to claim 1, characterized in that: The first protruding teeth (4) are symmetrically distributed, and there are two bolts (8).

5. The hexagonal nut with anti-loosening structure according to claim 1, characterized in that: A sealing ring (14) is bonded to the bottom of the sealing cover housing (13), and a through hole (10) is provided on the surface of the locking housing (2).

6. The hexagonal nut with anti-loosening structure according to claim 2, characterized in that: The elastic balls (12) are distributed in an annular form, and the grooves (15) are distributed in an annular form.