Double-nut high-strength bolt with combination of elastic convex nut and round-table hexagonal nut
By setting hexagonal nuts and raised nuts on the surface of the bolt, combined with designs such as limiting blocks, friction plates and trapezoidal elastic raised bars, the problem of separation of double nuts during low-intensity vibration is solved, and the stability of the bolts is improved and convenient to use is achieved. sex.
Patent Information
- Application Number
- CN202420876376.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing double nuts with elastic raised nuts and round hexagonal nuts are easy to separate when they encounter slight frequent vibrations, and the bolt stability is not significantly improved under long-term low-intensity vibrations.
By setting hexagonal nuts and raised nuts on the surface of the bolt, the friction force is increased by using structures such as limiting blocks, friction plates, expansion ring plates and trapezoidal elastic raised bars, and the friction force is enhanced by designing the insertion sleeve plates, expansion blocks and operating grooves. The fixity of the nuts should avoid loosening.
It effectively improves the friction force and structural stability of the nut when it rotates, ensures that the bolts remain stable for a long time when vibration is low-strength, avoid loosening, and improves overall stability and ease of use.
Smart Images
Figure CN222141762U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolts, in particular to a double-nut high-strength bolt which is a combination of an elastic raised nut and a truncated cone hexagonal nut. Background Art
[0002] A nut is a nut. The patent with announcement number CN220470453U discloses a nut with an elastic protrusion, including a nut body, an internal threaded hole is provided inside the nut body, a hexagonal head is provided at one end of the outer surface of the nut body, and a cylindrical head is provided at the other end of the outer surface of the nut body, the cylindrical head is located at the bottom of the hexagonal head, an elastic structure is provided on the surface of the cylindrical head, and a connecting structure is provided on the side of the elastic structure, the elastic structure includes a connecting ring and an elastic sheet, the elastic sheet is fixedly connected to the bottom surface of the connecting ring, the inner surface of the connecting ring is fixedly sleeved on the outer surface of the cylindrical head, and the upper end surface of the connecting ring is tightly connected to the bottom of the hexagonal head. This patent arranges a hexagonal head and a cylindrical head on the nut body, thereby combining and connecting the elastic structure and the connecting structure, and can form an integrated structure for combined use, which is beneficial to elastic compression for reinforcement during threaded connection to avoid loosening, convenient combined use, and safe and stable.
[0003] The above patent uses overlapping nuts for reinforcement. The double nut and bolt fixing structure will directly improve the overall stability. However, each independent nut will still separate from the bolt independently when encountering small frequent vibrations. When subjected to long-term low-intensity vibrations, the bolt stability is not significantly improved. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a double-nut high-strength bolt with a combination of an elastic raised nut and a truncated cone hexagonal nut, which solves the problem that each independent nut will be separated from the bolt independently when encountering small and frequent vibrations, and the stability of the bolt is not significantly improved when subjected to long-term low-intensity vibrations.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a double-nut high-strength bolt with an elastic raised nut and a truncated cone hexagonal nut, comprising a bolt, a hexagonal nut and a raised nut are threadedly connected on the surface of the bolt, a limiting block is fixedly connected to the top of the hexagonal nut, a limiting groove is opened on the top of the limiting block, a friction plate is fixedly connected to the bottom of the inner wall of the limiting groove, a convex point is arranged on the surface of the hexagonal nut, an expansion ring plate is fixedly connected to the bottom of the expansion ring plate, an elastic raised strip is fixedly connected to the bottom of the expansion ring plate, the cross-section of the elastic raised strip is trapezoidal, and a contact convex point is arranged at the bottom of the elastic raised strip.
[0006] Preferably, the surface of the raised nut is movably connected with an embedded sleeve plate, and the inner surface of the embedded sleeve plate is provided with friction lines.
[0007] Preferably, an expansion block is fixedly connected to the surface of the embedded sleeve, and an embedded column is fixedly connected to one side of the embedded sleeve.
[0008] Preferably, operating grooves are provided on the surfaces of the hexagonal nut and the raised nut, and friction protrusions are provided on the inner walls of the operating grooves.
[0009] Preferably, an embedding groove is provided on the inner surface of the operating groove, and a friction pattern is provided on the inner wall of the embedding groove.
[0010] Beneficial Effects
[0011] The utility model provides a double-nut high-strength bolt with an elastic raised nut and a truncated cone hexagonal nut. Compared with the prior art, it has the following beneficial effects:
[0012] (1) The double-nut high-strength bolt with an elastic raised nut and a truncated cone hexagonal nut is connected with a hexagonal nut and a raised nut through the surface thread of the bolt, the top of the hexagonal nut is fixedly connected with a limiting block, the top of the limiting block is provided with a limiting groove, the bottom of the inner wall of the limiting groove is fixedly connected with a friction plate, the surface of the hexagonal nut is provided with a convex point, the bottom of the raised nut is fixedly connected with an expansion ring plate, the bottom of the expansion ring plate is fixedly connected with an elastic raised strip, the cross-section of the elastic raised strip is trapezoidal, and the bottom of the elastic raised strip is provided with a contact convex point. By utilizing the setting of the hexagonal nut and the raised nut, the embedded sleeve plate is rubbed against the limiting block and the friction plate, so as to directly increase the friction force when the nut rotates. In addition, because the elastic raised strip with a trapezoidal setting is adopted, the friction force can be further increased with the help of the two sides of the limiting block. On the basis of a simplified structure, the loosening effect is improved, and the operation is convenient and quick.
[0013] (2) The double-nut high-strength bolt with an elastic raised nut and a truncated cone hexagonal nut is movably connected to an embedded sleeve through the surface of the raised nut, the inner surface of the embedded sleeve is provided with friction patterns, the surface of the embedded sleeve is fixedly connected with an expansion block, one side of the embedded sleeve is fixedly connected with an embedded column, the surfaces of the hexagonal nut and the raised nut are provided with operating grooves, the inner wall of the operating groove is provided with friction convex points, the inner surface of the operating groove is provided with an embedded groove, the inner wall of the embedded groove is provided with friction patterns, and the double nuts are directly embedded in the external structure after connection, and the interference fit of the related structures effectively prevents the external embedded sleeve from falling off at will. Even if one nut tends to loosen during use, it will be restricted by the embedded sleeve, and the effect is obvious, which can effectively ensure that the bolt remains stable for a long time under low-intensity vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model;
[0016] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle.
[0017] In the figure: 1, bolt; 2, hexagonal nut; 21, limiting block; 22, limiting groove; 23, friction plate; 3, raised nut; 31, expansion ring plate; 32, elastic raised strip; 33, embedded sleeve plate; 34, expansion block; 35, embedded column; 4, operating groove; 5, embedded groove. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-3 , the utility model provides two technical solutions:
[0020] Embodiment 1, a double-nut high-strength bolt with an elastic raised nut and a truncated cone hexagonal nut combination, comprises a bolt 1, a hexagonal nut 2 and a raised nut 3 are threadedly connected on the surface of the bolt 1, a limiting block 21 is fixedly connected to the top of the hexagonal nut 2, a limiting groove 22 is opened on the top of the limiting block 21, a friction plate 23 is fixedly connected to the bottom of the inner wall of the limiting groove 22, a convex point is arranged on the surface of the hexagonal nut 2, an expansion ring plate 31 is fixedly connected to the bottom of the raised nut 3, an elastic raised strip 32 is fixedly connected to the bottom of the expanded ring plate 31, the cross-sectional shape of the elastic raised strip 32 is trapezoidal, and a contact convex point is arranged at the bottom of the elastic raised strip 32, the setting of the hexagonal nut 2 and the raised nut 3, the embedded sleeve plate 33 is rubbed against the limiting block 21 and the friction plate 23, and the friction force when the nut rotates is directly improved, and because the elastic raised strip 32 with a trapezoidal setting is adopted, the friction force can be further improved with the help of the two sides of the limiting block 21, on the basis of the simplified structure, the relaxation effect is improved, and the operation is convenient and quick.
[0021] Embodiment 2 is mainly different from Embodiment 1 in that: a double-nut high-strength bolt with a combination of an elastic raised nut and a truncated cone hexagonal nut, the surface of the raised nut 3 is movably connected with an embedded sleeve plate 33, the inner surface of the embedded sleeve plate 33 is provided with friction lines, the surface of the embedded sleeve plate 33 is fixedly connected with an expansion block 34, one side of the embedded sleeve plate 33 is fixedly connected with an embedded column 35, the surfaces of the hexagonal nut 2 and the raised nut 3 are provided with an operating groove 4, the inner wall of the operating groove 4 is provided with a friction convex point, the operating groove 4 and the expansion block 34 are interference fit, the inner surface of the operating groove 4 is provided with an embedded groove 5, the inner wall of the embedded groove 5 is provided with friction lines, and the expansion block 34, the embedded column 35, the operating groove 4 and the embedded groove 5 are arranged. After the double nut is connected, it is directly embedded in the external structure, and the interference fit of the relevant structure effectively prevents the external embedded sleeve plate 33 from falling off at will. Even if one nut has a tendency to loosen during use, it will be restricted by the embedded sleeve plate 33, and the effect is obvious. It can effectively ensure that the bolt remains stable for a long time under low-intensity vibration.
[0022] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0023] Install the hexagonal nut 2 and the raised nut 3 on the surface of the bolt 1, and the bottom of the elastic raised strip 32 is in close contact with the friction plate 23 in the limiting groove 22. When the hexagonal nut 2 and the raised nut 3 are aligned, insert the embedded sleeve 33 into the operating groove 4 and the embedded groove 5 on the surface of the hexagonal nut 2 and the raised nut 3, insert the embedded column 35 into the embedded groove 5, and the expansion block 34 is in full contact with the surface of the operating groove 4. After use, it can be disassembled in reverse according to the above steps.
[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A double-nut high-strength bolt with a combination of an elastic protruding nut and a truncated cone hexagonal nut, comprising a bolt (1), characterized in that: The surface of the bolt (1) is threadedly connected with a hexagonal nut (2) and a raised nut (3); the top of the hexagonal nut (2) is fixedly connected with a limiting block (21); the top of the limiting block (21) is provided with a limiting groove (22); the bottom of the inner wall of the limiting groove (22) is fixedly connected with a friction plate (23); the surface of the hexagonal nut (2) is provided with a convex point; the bottom of the raised nut (3) is fixedly connected with an expansion ring plate (31); the bottom of the expansion ring plate (31) is fixedly connected with an elastic raised strip (32); the cross-section of the elastic raised strip (32) is trapezoidal; the bottom of the elastic raised strip (32) is provided with a contact convex point.
2. The double-nut high-strength bolt with a combination of an elastic protruding nut and a truncated cone hexagonal nut according to claim 1, characterized in that: An embedded sleeve plate (33) is movably connected to the surface of the raised nut (3), and a friction pattern is arranged on the inner surface of the embedded sleeve plate (33).
3. The double-nut high-strength bolt with a combination of an elastic protruding nut and a truncated cone hexagonal nut according to claim 2, characterized in that: An expansion block (34) is fixedly connected to the surface of the embedded sleeve plate (33), and an embedded column (35) is fixedly connected to one side of the embedded sleeve plate (33).
4. The double-nut high-strength bolt with a combination of an elastic protruding nut and a truncated cone hexagonal nut according to claim 1, characterized in that: An operating groove (4) is provided on the surface of the hexagonal nut (2) and the raised nut (3), and a friction convex point is provided on the inner wall of the operating groove (4).
5. The double-nut high-strength bolt with a combination of an elastic protruding nut and a truncated cone hexagonal nut according to claim 4, characterized in that: An embedding groove (5) is provided on the inner surface of the operating groove (4), and a friction pattern is provided on the inner wall of the embedding groove (5).