High-strength heavy hex nut

Abstract

The utility model discloses a high -strength heavy -duty hexagonal nut relates to nut technical field. A high -strength heavy -duty hexagonal nut, including nut main part, the inside of nut main part is seted up thread groove, sealing structure, sealing structure is located on nut main part, and sealing structure includes installation ring no.

Description

Technical Field

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

[0002] In the field of mechanical connection and fastening, hexagonal nuts are a commonly used fastener and are widely used in various engineering structures and equipment. In particular, in fields such as heavy machinery, bridges, buildings and aerospace where high-strength heavy-duty hexagonal nuts need to withstand high-intensity loads and vibration environments, the performance and reliability of high-strength heavy-duty hexagonal nuts are of paramount importance.

[0003] In practical applications, traditional hexagonal nuts are prone to loosening or even falling off due to vibration, impact, or long-term load. This not only affects the normal operation of equipment but may also cause serious safety accidents. Traditionally, spring washers are mostly used to prevent nuts from loosening. However, for connections requiring high sealing performance, such as high-pressure pipelines and hydraulic systems, nut washers may not provide sufficient sealing and can easily lead to leakage. Therefore, we propose a high-strength heavy-duty hexagonal nut. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a high-strength heavy-duty hexagonal nut that can solve the problem that in practical applications, traditional hexagonal nuts are often prone to loosening or even falling off due to vibration, impact or long-term load. This not only affects the normal operation of equipment, but may also cause serious safety accidents. Traditionally, spring washers are mostly used to prevent nuts from loosening. However, for connection applications that require high sealing performance, such as high-pressure pipelines and hydraulic systems, nut washers may not be able to provide sufficient sealing effect, which can easily lead to leakage problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength heavy-duty hexagonal nut, comprising:

[0006] The nut body has threaded grooves inside.

[0007] A sealing structure is located on the nut body;

[0008] The sealing structure includes a first mounting ring, a second mounting ring, a sliding ring, and a connecting ring. Both the first and second mounting rings are fixedly connected to the top of the nut body. Both the first and second mounting rings have a first mounting groove. Both the first and second mounting rings have a limit groove inside. The sliding ring is located inside the two limit grooves and is interference-fitted with the two limit grooves. The connecting ring is fixedly connected to the top of the sliding ring. Both the sliding ring and the connecting ring have a second mounting groove.

[0009] Preferably, the sealing structure further includes a soft rubber sleeve, which is fixedly connected to the top of the connecting ring.

[0010] Preferably, the soft sleeve is made of rubber.

[0011] Preferably, both the sliding ring and the connecting ring are made of a deformable material.

[0012] Preferably, both mounting ring one and mounting ring two have an "L" shaped cross-section.

[0013] Preferably, both ends of the nut body are provided with arc-shaped chamfers.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This high-strength heavy-duty hexagonal nut, when loose, because the soft rubber sleeve is in a bent state and closely fits the bolt surface, when the nut body tends to loosen, the soft rubber sleeve will gradually tighten, forming a blocking effect on the nut body and filling any gaps that may exist, ensuring the sealing of the connection part, meeting the requirements of high sealing connection occasions, and thus improving the safety and stability of the connection. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of the nut of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the soft rubber sleeve of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting ring structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Nut body; 2. Soft rubber sleeve; 3. Arc-shaped chamfer; 4. Threaded groove; 5. Mounting ring one; 6. Mounting ring two; 7. Sliding ring; 8. Connecting ring; 9. Mounting groove one; 10. Limiting groove; 11. Mounting groove two. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a high-strength heavy-duty hexagonal nut, comprising:

[0027] Nut body 1, with threaded groove 4 inside the nut body 1;

[0028] A sealing structure is located on the nut body 1;

[0029] The sealing structure includes a mounting ring 5, a mounting ring 6, a sliding ring 7, and a connecting ring 8. Mounting ring 5 and mounting ring 6 are both fixedly connected to the top of the nut body 1. Mounting ring 5 and mounting ring 6 are both provided with mounting groove 9. Mounting ring 5 and mounting ring 6 are both provided with limiting grooves 10. The sliding ring 7 is located inside the two limiting grooves 10 and is interference-fitted with the two limiting grooves 10. The connecting ring 8 is fixedly connected to the top of the sliding ring 7. Mounting groove 2 is provided on both the sliding ring 7 and the connecting ring 8. The sealing structure also includes a soft rubber sleeve 2, which is fixedly connected to the top of the connecting ring 8.

[0030] The soft rubber sleeve 2 is made of rubber, the sliding ring 7 and the connecting ring 8 are both made of deformable material, the cross-section of the mounting ring 1 5 and the mounting ring 2 6 are both "L" shaped, and the two ends of the nut body 1 are provided with arc chamfers 3.

[0031] Furthermore, when using this device, the nut body 1 has a threaded groove 4 inside for threaded connection with the bolt to achieve basic fastening function. The arc-shaped chamfers 3 set at both ends of the nut body 1 can reduce sharp friction with the connecting parts or other components during installation and avoid scratching the connecting surface. On the other hand, it also helps the nut to be screwed in and positioned smoothly.

[0032] Mounting ring 5 and mounting ring 6 are both fixedly connected to the top of the nut body 1. Both have an "L" shaped cross-section, which provides stable support and positioning for the installation of subsequent components. The sliding ring 7 is located inside the two limiting grooves 10 and is interference-fitted with the two limiting grooves 10. This interference fit gives the sliding ring 7 a certain friction force in the limiting grooves 10, which can ensure that the sliding ring 7 can slide when subjected to a certain external force, and can maintain a relatively stable position when not subjected to external force or when the external force is small.

[0033] After the nut body 1 is connected to the bolt and tightened, if it is necessary to enhance the sealing effect, first put the soft rubber sleeve 2 on the bolt. Then, the sliding ring 7 can be slid in the limiting groove 10 by external force, which will drive the connecting ring 8 and the soft rubber sleeve 2 to move together. During the movement, the soft rubber sleeve 2 will gradually fit with the nut body 1, so that the end of the soft rubber sleeve 2 away from the connecting ring 8 bends back and fits with the bolt surface, filling any gaps that may exist, thereby achieving a good sealing effect. At the same time, when the nut body 1 becomes loose, because the soft rubber sleeve 2 will be in a bent state and fit tightly with the bolt surface, the soft rubber sleeve 2 will gradually tighten, thereby blocking the nut body 1 and ensuring the stability and reliability of the seal.

[0034] When this high-strength heavy-duty hexagonal nut is loose, the soft rubber sleeve 2 is in a bent state and closely fits the bolt surface. When the nut body 1 tends to loosen, the soft rubber sleeve 2 will gradually tighten, forming a blocking effect on the nut body 1 and filling any gaps that may exist, ensuring the sealing of the connection part, meeting the requirements of high-sealing connection occasions, and thus improving the safety and stability of the connection.

[0035] Structural Description: Nut Body 1: The basic structure of a high-strength heavy-duty hexagonal nut, with internal threaded grooves 4 for threaded connection with bolts to achieve fastening, and rounded chamfers 3 at both ends to reduce installation friction and facilitate screwing in and positioning;

[0036] Arc-shaped chamfer 3: Located at both ends of the nut body 1, it reduces sharp friction with the connecting parts during installation, avoids scratching the connecting surface, and at the same time assists the nut to be screwed in and positioned smoothly;

[0037] Threaded groove 4: It is formed inside the nut body 1 and mates with the external thread of the bolt to realize the threaded connection between the nut and the bolt and complete the fastening function;

[0038] Mounting ring 5: It is fixedly connected to the top of the nut body 1, with an "L" shaped cross section. It has a mounting groove 9 and a limiting groove 10 to provide mounting support and positioning for components such as the sliding ring 7.

[0039] Mounting ring 2 6: It is fixedly connected to the top of the nut body 1 and has the same structure as mounting ring 1 5. The cross section is "L" shaped and has mounting groove 1 9 and limiting groove 10. It works with mounting ring 1 5 to support sliding ring 7.

[0040] Mounting slot 9: It is formed on mounting ring 5 and mounting ring 6. Its specific purpose is unclear, but it may be used to assist in the installation of other components.

[0041] Limiting groove 10: It is formed inside mounting ring 1 5 and mounting ring 2 6 to accommodate sliding ring 7, and is interference fit with sliding ring 7 to provide friction to limit its free movement;

[0042] Sliding ring 7: Located inside the two limiting grooves 10, it is interference-fitted with the limiting grooves 10 and can slide under external force. The material has deformable characteristics, and the top is fixedly connected to the connecting ring 8.

[0043] Connecting ring 8: It is fixedly connected to the top of the sliding ring 7. The material has deformable properties. The top is fixedly connected to the soft rubber sleeve 2. The soft rubber sleeve 2 moves with the sliding ring 7.

[0044] Mounting slot 2 11: It is formed on the sliding ring 7 and the connecting ring 8. Its specific purpose is unclear. It may be used to assist in the installation of the soft rubber sleeve 2 or to realize its function.

[0045] Soft rubber sleeve 2: It is fixedly connected to the top of the connecting ring 8 and is made of rubber. It fits against the nut body 1 and bolt surface through the movement of the sliding ring 7 and the connecting ring 8, filling the gaps to achieve a seal. At the same time, it tightens and blocks the nut when it loosens.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-strength heavy-duty hexagonal nut, characterized in that, include: Nut body (1), the inside of nut body (1) is provided with threaded groove (4); A sealing structure is located on the nut body (1); The sealing structure includes mounting ring one (5), mounting ring two (6), sliding ring (7) and connecting ring (8). Mounting ring one (5) and mounting ring two (6) are fixedly connected to the top of the nut body (1). Mounting ring one (5) and mounting ring two (6) are provided with mounting groove one (9). Mounting ring one (5) and mounting ring two (6) are provided with limiting groove (10) inside. Among them, the sliding ring (7) is located inside the two limiting grooves (10), the sliding ring (7) is press-fitted with the two limiting grooves (10), the connecting ring (8) is fixedly connected to the top of the sliding ring (7), and the sliding ring (7) and the connecting ring (8) are both provided with mounting groove 2 (11).

2. The high-strength heavy-duty hexagonal nut according to claim 1, characterized in that: The sealing structure also includes a soft rubber sleeve (2), which is fixedly connected to the top of the connecting ring (8).

3. A high-strength heavy-duty hexagonal nut according to claim 2, characterized in that: The soft rubber sleeve (2) is made of rubber.

4. A high-strength heavy-duty hexagonal nut according to claim 1, characterized in that: Both the sliding ring (7) and the connecting ring (8) are made of a deformable material.

5. A high-strength heavy-duty hexagonal nut according to claim 1, characterized in that: The cross-sections of the first mounting ring (5) and the second mounting ring (6) are both "L" shaped structures.

6. A high-strength heavy-duty hexagonal nut according to claim 1, characterized in that: Both ends of the nut body (1) are provided with arc-shaped chamfers (3).

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