Hexagon nut

By designing a rust removal mechanism in the hexagon nut, using the knock ring to increase pressure and destroy the sealing ring and sealing film, the problem of lubricating oil being inaccessible is solved, and effective lubrication and disassembly between the nut and the bolt is achieved.

CN222836039UActive Publication Date: 2025-05-06ZHEJIANG TIANGONG FASTENER CO LTD
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Patent Information

Application Number
CN202421984333.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-05-06
Estimated Expiration
2034-08-16

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Abstract

The utility model provides a hexagon nut, and belongs to the technical field of nuts. Comprising a nut body and a gasket movably connected to the nut body in a sleeving mode, and further comprises a rust removal mechanism, the rust removal mechanism comprises a cavity formed in the top of the nut body, a circular ring is inlaid in the inner wall of the cavity, and a through groove is formed in the bottom of the inner wall of the cavity; a round hole communicated with the inner wall of the nut body is formed in the side face of the inner cavity, the cavity is communicated with the through groove, the through groove is communicated with the inner cavity, the inner cavity is communicated with the round hole, a sealing ring is fixed to the inner wall of the through groove, a sealing film is fixed to the inner wall of the round hole, and the inner wall of the inner cavity is filled with a rust remover. According to the rust removal nut, the rust removal mechanism is arranged, the inner cavity is formed in the rust removal nut, lubricating oil is firstly stored in the inner cavity, the channel and the round hole are blocked through the sealing ring and the sealing film, corrosion of the channel and the round hole is avoided, it is guaranteed that the lubricating oil can enter the position between the nut body and a bolt, and corrosion cannot affect the round hole, the through hole and the like.
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Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a hexagonal nut. Background Art

[0002] Hexagonal nuts are hexagonal nuts that are usually used with bolts to fix or connect objects. The six corners of the hexagonal nut can provide better operating space and facilitate rotation with a wrench or spanner. They are commonly used in mechanical engineering and construction industries and have good tensile strength and fixing effect.

[0003] After searching, the Chinese utility model patent with publication number CN205956166U discloses a self-contained gasket anti-loosening nut, including a nut body and a gasket body, the gasket body and the nut body are integrally arranged, the gasket body is arranged on the lower end surface of the nut body, the nut body is provided with a through hole, the inner wall of the through hole is provided with a spiral groove, the cross-sectional shape of the spiral groove includes a first hypotenuse and a second hypotenuse arranged obliquely relative to the central axis of the through hole, the inner side end of the first hypotenuse is inclined relative to the outer side end in the direction of the second hypotenuse, the inner side end of the second hypotenuse is inclined relative to the outer side end in the direction of the first hypotenuse, the first hypotenuse and the inner side end of the second hypotenuse are connected via a connecting edge, the connecting edge is inclined relative to the central axis of the through hole, and the angle between the connecting edge and the central axis of the through hole is 33°. By adopting the above technical scheme, the utility model provides a self-contained gasket anti-loosening nut, which can well prevent the nut body from loosening, so that it is more secure when connected with the bolt.

[0004] In the above patent, when rust occurs between the nut and the bolt, lubricating oil is added to the oil inlet hole, and the lubricating oil enters the spiral groove from the oil outlet to lubricate the nut and the bolt, thereby allowing disassembly. However, when rust occurs between the nut and the bolt, the oil outlet and the oil inlet are often also corroded, and the lubricating oil cannot enter from the oil inlet, thereby failing to achieve the lubrication effect. Therefore, the present application provides a hexagonal nut to meet the demand. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a hexagonal nut to solve the problem that the oil inlet and the oil outlet are rusted and the lubricating oil cannot enter.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A hexagonal nut, comprising a nut body and a washer movably sleeved on the nut body, and further comprising:

[0008] The rust removal mechanism comprises a cavity opened at the top of the nut body, a circular ring is inlaid on the inner wall of the cavity, a through groove is opened at the bottom of the inner wall of the cavity, an inner cavity is opened at the bottom of the through groove in the nut body, a circular hole connected to the inner wall of the nut body is opened on the side of the inner cavity, the cavity is connected to the through groove, the through groove is connected to the inner cavity, the inner cavity is connected to the circular hole, a sealing ring is fixed on the inner wall of the through groove, a sealing film is fixed on the inner wall of the circular hole, and the inner wall of the inner cavity is filled with a rust remover.

[0009] Preferably, a groove is provided on the top of the ring.

[0010] Preferably, the inner wall of the groove is provided with anti-slip stripes.

[0011] Preferably, the top of the ring and the top of the nut body are in the same plane.

[0012] Preferably, a slide groove is provided on the side surface of the cavity, a slider is fixed on the circumferential surface of the annulus, and the side surface of the slider is slidably connected to the inner wall of the slide groove.

[0013] Preferably, a plurality of reinforcement members are fixed to the inner wall of the inner cavity.

[0014] Preferably, the reinforcement is X-shaped.

[0015] Preferably, the sealing film is provided with depressions on its opposite surfaces close to the inner cavity and away from the inner cavity.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, a rust removal mechanism is provided, and an inner cavity is provided inside, so that the lubricating oil is first stored in the inner cavity, and the channel and the circular hole are blocked by a sealing ring and a sealing film to prevent the channel and the circular hole from rusting, and to prevent the lubricating oil from flowing out when the nut body is not rusted. Secondly, when the nut body and the bolt are corroded together, the circular ring is knocked downward to increase the pressure inside the cavity, and the pressure breaks the sealing ring. After the pressure enters the inner cavity, the pressure breaks the sealing film again, so that the lubricating oil enters between the nut body and the bolt to lubricate them, so that the nut body can be disassembled, and it is ensured that the lubricating oil can enter between the nut body and the bolt, and the rust cannot affect the circular hole and the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2This is a front cross-sectional view of the nut body of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure at center;

[0022] Figure 4 For this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0023] [Reference Signs]

[0024] 1. Nut body; 2. Gasket; 3. Rust removal mechanism; 301. Cavity; 302. Ring; 303. Groove; 304. Slide; 305. Slider; 306. Through groove; 307. Sealing ring; 308. Inner cavity; 309. Reinforcement member; 310. Round hole; 311. Sealing film.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0026] The following is a detailed description of a hexagonal nut provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] like Figure 1-Figure 4 As shown, an embodiment of the utility model provides a hexagonal nut, comprising a nut body 1 and a washer 2 movably sleeved on the nut body 1, and further comprising:

[0030] The rust removal mechanism 3 comprises a cavity 301 formed at the top of the nut body 1, the inner wall of the cavity 301 is inlaid with a circular ring 302, the bottom of the inner wall of the cavity 301 is formed with a through groove 306, an inner cavity 308 is formed at the bottom of the through groove 306 in the nut body (1), a circular hole 310 connected to the inner wall of the nut body 1 is formed on the side of the inner cavity 308, the cavity 301 is connected to the through groove 306, the through groove 306 is connected to the inner cavity 308, the inner cavity 308 is connected to the circular hole 310, a sealing ring 307 is fixed to the inner wall of the through groove 306, the sealing ring 307 is a plastic film ring, and will break when squeezed by external force, a sealing film 311 is fixed to the inner wall of the circular hole 310, the sealing film 311 is a plastic film, When subjected to external pressure, the sealing film 311 ruptures, and the inner wall of the inner cavity 308 is filled with a rust remover, which is also called a rust loosening agent. Its main function is to loosen rusty fasteners. The gasket 2 can rotate on the surface of the nut body 1. The gasket 2 is trumpet-shaped, and the larger opening of the trumpet-shaped part faces downward. The ring 302 can slide in the cavity 301. A sealing ring can be provided on the fitting surface of the ring 302 and the inner wall of the cavity 301 to improve the sealing between the ring 302 and the inner wall of the cavity 301 to prevent moisture in the air from entering the gap between the two and causing rust between the two. The sealing film 311 is located on the inner wall side of the circular hole 310 close to the nut body 1 to prevent the circular hole 310 from rusting.

[0031] like Figure 3 As shown, in this embodiment, a groove 303 is provided on the top of the ring 302, and a knocking object can be knocked in the groove 303, so that the knocking force is concentrated in the groove 303, making the knocking easier.

[0032] like Figure 3 As shown, in this embodiment, the inner wall of the groove 303 is provided with anti-slip stripes to increase the friction between the groove 303 and the striking object, thereby preventing the striking object from sliding and making the striking more stable.

[0033] like Figure 3As shown, in this embodiment, the top of the ring 302 and the top of the nut body 1 are in the same plane to prevent the ring 302 from being higher than the top of the nut body 1 and affecting the use.

[0034] like Figure 3 As shown, in this embodiment, a slide groove 304 is opened on the side of the cavity 301, and a slider 305 is fixed on the circumferential surface of the ring 302. The side of the slider 305 is slidably connected to the inner wall of the slide groove 304. The slider 305 slides vertically on the inner wall of the slide groove 304 to guide the ring 302 in the vertical direction to prevent the ring 302 from getting stuck when moving vertically.

[0035] like Figure 2 As shown, in this embodiment, a plurality of reinforcing members 309 are fixed to the inner wall of the inner cavity 308 to ensure the structural strength of the nut body 1 and prevent deformation of the inner cavity 308 .

[0036] like Figure 3 As shown, in this embodiment, the reinforcement member 309 is X-shaped, so that it can withstand tensile and compressive forces and avoid affecting the structural strength of the nut body 1.

[0037] like Figure 4 As shown, in this embodiment, the sealing film 311 is provided with depressions on its opposite surfaces close to the inner cavity 308 and away from the inner cavity 308. The depressions make the middle portion of the sealing film 311 easily broken by pressure, making it more sensitive during use.

[0038] Working principle: when rust occurs between the nut body 1 and the bolt and cannot be removed, the ring 302 is knocked at this time to move the ring 302 downward. As the ring 302 moves downward, the ring 302 drives the slider 305 to slide on the inner wall of the slide groove 304, and the ring 302 itself slides on the inner wall of the cavity 301. As the ring 302 moves downward, the space of the cavity 301 at the bottom of the ring 302 decreases and the pressure increases. After the pressure increases to a certain value, the pressure breaks the sealing ring 307, allowing the pressure to enter the inner cavity 308 through the through groove 306. After the pressure enters the inner cavity 308, the internal pressure of the inner cavity 308 increases, causing the sealing film 311 in the circular hole 310 to be damaged. The ring 302 continues to move downward, squeezing out the rust remover in the inner cavity 308, so that the rust remover flows out from the circular hole 310 to between the nut body 1 and the bolt, lubricating the rusted parts. After lubrication for a period of time, it can be disassembled.

[0039] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hexagonal nut, comprising a nut body (1) and a washer (2) movably sleeved on the nut body (1), characterized in that: Also includes: A rust removal mechanism (3), the rust removal mechanism (3) comprising a cavity (301) formed at the top of a nut body (1), the inner wall of the cavity (301) being inlaid with a circular ring (302), the bottom of the inner wall of the cavity (301) being formed with a through groove (306), an inner cavity (308) being formed in the nut body (1) at the bottom of the through groove (306), a circular hole (310) being formed on the side of the inner cavity (308) and being connected to the inner wall of the nut body (1), the cavity (301) being connected to the through groove (306), the through groove (306) being connected to the inner cavity (308), the inner cavity (308) being connected to the circular hole (310), a sealing ring (307) being fixed to the inner wall of the through groove (306), a sealing film (311) being fixed to the inner wall of the circular hole (310), and a rust remover being filled on the inner wall of the inner cavity (308).

2. The hexagonal nut according to claim 1, characterized in that: The top of the circular ring (302) is provided with a groove (303).

3. The hexagonal nut according to claim 2, characterized in that: The inner wall of the groove (303) is provided with anti-slip stripes.

4. The hexagonal nut according to claim 1, characterized in that: The top of the circular ring (302) and the top of the nut body (1) are located in the same plane.

5. The hexagonal nut according to claim 1, characterized in that: A sliding groove (304) is provided on the side of the cavity (301), a sliding block (305) is fixed on the circumferential surface of the ring (302), and a side surface of the sliding block (305) is slidably connected to the inner wall of the sliding groove (304).

6. The hexagonal nut according to claim 1, characterized in that: A plurality of reinforcement members (309) are fixed to the inner wall of the inner cavity (308).

7. The hexagonal nut according to claim 6, characterized in that: The reinforcement member (309) is X-shaped.

8. The hexagonal nut according to claim 1, characterized in that: The sealing film (311) is provided with depressions on its opposite surfaces close to the inner cavity (308) and away from the inner cavity (308).

Citation Information

Patent Citations

  • From locknut who takes gasket

    CN205956166U