Anti-loosening bolt
By setting up anti-drift and anti-drift parts between the screw and the nut, the problem of loosening and falling off the bolts during use is solved, and good anti-drift effect and operation convenience are achieved.
Patent Information
- Application Number
- CN202422052876.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-23
AI Technical Summary
After the nut is tightened, the existing bolts are easily loosened or even fall off due to external forces, resulting in the problem of poor connection.
An anti-loosening bolt is designed, including a screw body, a nut and an anti-loosening piece. The screw body is threaded with the nut, and an anti-loosening piece is provided on the outer circumference of the front end of the screw body and the inner wall of the nut. When the bolt is assembled, the nut can be rotated to make the anti-loosening piece face opposite to each other. The anti-loosening piece is inserted to limit the circumferential rotation of the nut and prevent loosening.
The nut is effectively prevented from reversing and loosening, with simple and reasonable structure, convenient operation, good anti-detachment effect, and the anti-detachment can be used as a screw structure or a sheet structure as needed, and the scope of application is wider.
Smart Images
Figure CN222894491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-loosening bolts, in particular to an anti-loosening bolt. Background Art
[0002] Bolts are mechanical parts used for connection. They are round rods with threads and equipped with nuts, which can be disassembled. After the nut is tightened, the bolts can fix two parts in the machine. However, after being fixed for a certain period of time, the nut often loosens or even falls off due to external forces. Therefore, in order to ensure the tightness of the connection in the industrial production process, it is often necessary to avoid the problem of loose connection caused by the bolts loosening by themselves.
[0003] When existing ordinary bolts are used for anti-loosening connection, hysteresis anti-loosening is generally adopted, that is, gaskets or nuts are added to achieve the anti-loosening effect. However, the anti-loosening effect of this method decreases with the increase of vibration frequency and time. In addition, there is currently a screw anti-loosening structure in which a hole is left on the outer circumference of the screw, and a card is inserted into the nut after it is screwed on to prevent it from falling off. However, this anti-loosening method is also inconvenient to disassemble. Utility Model Content
[0004] In view of the defects in the prior art, the purpose of the utility model is to provide an anti-loosening bolt, which has a simple and reasonable structure and has a good anti-loosening effect.
[0005] The technical solution adopted by the utility model is: an anti-loosening bolt, comprising a screw body, a nut and an anti-loosening piece; the screw body is threadedly matched with the nut; the outer periphery of the front end of the screw body and the inner wall of the nut are both provided with anti-loosening grooves arranged along the axial direction of the screw body, and after the screw body and the nut are assembled and the two anti-loosening grooves are made to face each other, the anti-loosening piece can be stuck in the two anti-loosening grooves.
[0006] The bolt structure provided in the technical solution is assembled by the cooperation of the screw body and the nut, and a structure is provided to prevent the nut from loosening. When the bolt is assembled, the nut can be rotated so that the anti-slip groove is opposite to each other, and the anti-slip part can be inserted into the anti-slip groove. The anti-slip part can limit the circumferential rotation of the nut, thereby preventing the nut from reversing and loosening. The structure is simple and reasonable, the operation is convenient, and the anti-slip effect is good.
[0007] Preferably, a plurality of anti-slip grooves are provided on the outer periphery of the front end of the screw body, and the anti-slip grooves on the nut can be directly aligned with any anti-slip groove on the outer periphery of the screw body by rotating the nut.
[0008] Preferably, the anti-slipping piece is in a screw structure, the cross-sections of the two anti-slipping grooves are in a semicircular structure, and the inner peripheral wall is provided with an internal thread that matches the thread of the anti-slipping piece.
[0009] Preferably, the anti-dropping member is provided with an inserting end arranged in a cone shape at one end and a tightening end at the other end, and the tightening end is provided with a disassembly and assembly groove adapted to a screwdriver.
[0010] Preferably, the anti-slip component has a polygonal cross-section, and the anti-slip component can be inserted into an anti-slip space formed by two anti-slip grooves facing each other.
[0011] The beneficial effects of the utility model are as follows: after the screw rod and the nut are assembled, the nut can be rotated to make the anti-slip groove face each other, and the anti-slip part can be stuck in the anti-slip groove. The anti-slip part can limit the circumferential rotation of the nut, thereby preventing the nut from reversing and loosening. The structure is simple and reasonable, the operation is convenient, and the anti-slip effect is good. The anti-slip part can adopt a screw structure or a sheet structure according to needs, which is convenient for flexible selection in different scenarios and has a wider range of applications; it has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0013] Figure 1 The three-dimensional structure of the anti-loosening bolt provided in the embodiment of the utility model Figure 1 .
[0014] Figure 2 The three-dimensional structure of the anti-loosening bolt provided in the embodiment of the utility model Figure 2 .
[0015] Reference numerals: screw body 100 , nut 200 , anti-slipping member 300 , anti-slipping groove 400 , disassembly groove 500 . DETAILED DESCRIPTION
[0016] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0017] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0018] like Figure 1 and Figure 2As shown, a specific embodiment of the utility model provides an anti-loosening bolt, which has the advantages of good anti-loosening effect and easy assembly; it specifically includes a screw body 100, a nut 200 and an anti-loosening member 300; the screw body 100 and the nut 200 are threadedly matched; the front end periphery of the screw body 100 and the inner wall of the nut 200 are both provided with anti-loosening grooves 400 arranged along the axial direction of the screw body 100, and after the screw body 100 and the nut 200 are assembled and the two anti-loosening grooves 400 are facing each other, the anti-loosening member 300 can be stuck in the two anti-loosening grooves 400.
[0019] like Figure 1 and Figure 2 As shown, through the above-mentioned arrangement, the bolt structure provided in this embodiment is assembled by the cooperation of the screw body 100 and the nut 200 to form an existing ordinary bolt structure. At the same time, this embodiment is also provided with a structure to prevent the nut 200 from loosening. When the bolt structure is assembled, the nut 200 can be rotated so that the two anti-slip grooves 400 on the outer periphery of the screw body 100 and the inner wall of the nut 200 are opposite to each other. The technician can insert the anti-slip component 300 into the anti-slip groove 400. The anti-slip component 300 is simultaneously inserted into the two anti-slip grooves 400 to limit the circumferential rotation of the nut 200, thereby preventing the nut 200 from reversing and loosening. Its structure is simple and reasonable, the operation is convenient, and the anti-slip effect is good. In order to facilitate the insertion of the anti-slip component 300 into the anti-slip groove, in some embodiments, a plurality of anti-slip grooves 400 are provided on the outer periphery of the front end of the screw body 100. Rotating the nut 200 can make the anti-slip groove 400 on the nut face any anti-slip groove 400 on the outer periphery of the screw body 100. In this way, when pre-tightening the nut 200, the nut can be rotated a number of times as needed to make its anti-slip groove face any anti-slip groove 400 on the outer periphery of the screw body 300, and the anti-slip component 300 can be inserted to limit the rotation of the nut 200. Usually, 2-3 anti-slip grooves can be set on the screw body 100 according to its outer diameter.
[0020] like Figure 1 As shown, in actual application, the anti-slip member 300 can adopt different structures; in this embodiment, the anti-slip member 300 is a screw structure, the cross-section of the two anti-slip grooves 400 is a semicircular structure, and the inner peripheral wall is provided with an internal thread adapted to the thread of the anti-slip member 300, so that the anti-slip member 300 with a screw structure is screwed into the screw hole formed by the two semicircles, which can, on the one hand, make the anti-slip member 300 play a good anti-slip effect, and on the other hand, can also prevent the anti-slip member 300 from falling off; in order to facilitate disassembly and assembly, the anti-slip member 300 in this embodiment is provided with an insertion end arranged in a conical shape at one end, and a tightening end at the other end, and the tightening end is provided with a disassembly and assembly groove 500 adapted to a screwdriver. The insertion end and the disassembly and assembly groove 500 structure are provided to facilitate the installation of the anti-slip member 300 in the screw hole formed by the two anti-slip grooves 400 with the help of a screwdriver tool.
[0021] like Figure 2As shown, in some embodiments, the cross section of the anti-slip member 300 is a polygonal structure, such as a triangle, trapezoid or rectangle; when the anti-slip member 300 can be inserted into the anti-slip space formed by the two anti-slip grooves 400 facing each other, when the bolt is assembled, the sheet-shaped anti-slip member 300 can be directly inserted into the anti-slip groove 400 without the help of other tools, and its operation is more efficient and convenient.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. An anti-loosening bolt, characterized in that: The invention comprises a screw body (100), a nut (200) and an anti-slipping piece (300); the screw body (100) and the nut (200) are threadably matched. The outer periphery of the front end of the screw body (100) and the inner wall of the nut (200) are both provided with anti-slip grooves (400) arranged along the axial direction of the screw body (100). After the screw body (100) and the nut (200) are assembled and the two anti-slip grooves (400) are aligned with each other, the anti-slip member (300) can be inserted into the two anti-slip grooves (400).
2. The anti-loosening bolt according to claim 1, characterized in that: The front end periphery of the screw body (100) is provided with a plurality of anti-slip grooves (400), and the anti-slip grooves (400) on the nut (200) can be directly aligned with any anti-slip groove (400) on the periphery of the screw body (100) by rotating the nut (200).
3. The anti-loosening bolt according to claim 1 or 2, characterized in that: The anti-slipping piece (300) is in a screw structure, the cross-sections of the two anti-slipping grooves (400) are in a semicircular structure, and the inner peripheral wall is provided with an internal thread that matches the thread of the anti-slipping piece (300).
4. The anti-loosening bolt according to claim 3, characterized in that: The anti-dropping member (300) is provided with an inserting end arranged in a conical shape at one end and a tightening end at the other end, wherein the tightening end is provided with a disassembly and assembly groove (500) adapted to a screwdriver.
5. The anti-loosening bolt according to claim 1 or 2, characterized in that: The anti-slip component (300) has a polygonal cross-section, and the anti-slip component (300) can be inserted into an anti-slip space formed by two anti-slip grooves (400) facing each other.