Stud bolt with anti-loose structure

Abstract

The utility model provides a double-end bolt with an anti-loosening structure, which belongs to the field of bolts, and comprises a connecting rod, anti-skidding teeth A, a nut, an anti-loosening mechanism and an elastic mechanism, in the scheme, a positioning rod can move on the nut, so that a gasket can move, a spring can be placed through the arrangement of a mounting hole, and compression elastic force can be generated through the compression of the spring; according to the anti-loosening nut, the spring is arranged, so that the gasket can be jacked by the elastic force of the spring, the gasket can be tightly attached to a fixed object, and a plurality of anti-skid teeth B on the gasket can be tightly attached to the fixed object, so that the resistance between the anti-skid teeth B and the fixed object is increased, the rotation of the nut is limited, and the anti-loosening effect is achieved; the threaded rod can be tightly attached to a fixed object, so that resistance is increased, the situation that the connecting rod is loosened after the nut is tightened is avoided, and the problem that a stud in the prior art is not prone to being prevented from loosening can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of bolts, and particularly relates to a double-headed bolt with a loosening prevention structure. Background Technique

[0002] A double-headed bolt, also called a double-headed screw or a double-headed stud, is used for the fixed connection function of machinery. Both ends of the double-headed bolt have threads and are generally used in mining machinery, bridges, large-span steel structures, and large buildings, etc. Among them, there are bolts with a loosening prevention structure at both ends.

[0003] The authorized publication number "CN217271319U" records "a double-headed bolt with a double-end loosening prevention structure, including a double-headed bolt and gaskets. The gaskets are located on the left and right sides of the double-headed bolt. A clamping groove is opened on the left side of the gasket, and a fixing block for cooperating with the gasket is arranged on the surface of the double-headed bolt. A fixing groove is opened inside the fixing block. Through the combined use of the double-headed bolt, gaskets, clamping grooves, fixing blocks, fixing grooves, positioning mechanisms, and adjusting mechanisms, by pulling the adjusting mechanism to drive the positioning mechanism into the inside of the fixing groove, the gasket can be installed or disassembled at this time. During installation, the gasket is assembled with the double-headed bolt and the adjusting mechanism is pulled in the opposite direction, and the gasket is fixed through the combined use with the positioning mechanism, solving the problem that gaskets are used in the process of using double-headed bolts and are not easy to replace when the gaskets are damaged. Therefore, a structure that can replace gaskets is needed."

[0004] During the use of the double-headed bolt in the above patent, gaskets are used. It is not easy to replace the gaskets when they are damaged. However, it is not easy to prevent the bolts from loosening in the above patent. Due to the lack of a loosening prevention structure, the vibration generated during the operation of the equipment will cause the bolts to loosen. Content of the Utility Model

[0005] The purpose of the utility model is to provide a double-headed bolt with a loosening prevention structure, aiming to solve the problem that it is not easy to prevent the bolts from loosening in the existing double-headed bolts.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double-headed bolt with a loosening prevention structure, comprising:

[0008] A connecting rod;

[0009] Two anti-slip teeth A, which are respectively arranged at both ends of the connecting rod, and the two anti-slip teeth A are symmetrically arranged;

[0010] Two nuts, each of which is threadedly connected to each anti-slip tooth A;

[0011] The anti-loosening mechanism is provided in two groups, and each group of the anti-loosening mechanisms is arranged on the connecting rod and each nut; and

[0012] The elastic mechanism is provided in two groups, and each group of the elastic mechanisms is arranged on each nut.

[0013] As a preferred embodiment of the present invention, each group of the anti-loosening mechanisms includes:

[0014] A gasket component arranged on the nut; and

[0015] An anti-slip component arranged on the connecting rod and the gasket component.

[0016] As a preferred embodiment of the present invention, each group of the gasket components includes a gasket, a positioning rod, mounting holes and springs. There are two mounting holes, and both of the two mounting holes are opened at one end of the nut, and the two mounting holes are symmetrically arranged. There are two positioning rods, and each positioning rod is movably inserted into each mounting hole, and each positioning rod movably penetrates through the nut and extends to the outside of the nut. The gasket is fixedly connected to the same side end of the two positioning rods, and the gasket is movably sleeved on the anti-slip teeth A. There are two springs, and both of the two springs are fixedly connected to one side end of the gasket. Each spring is movably inserted into each mounting hole, and each spring is movably sleeved on each positioning rod.

[0017] As a preferred embodiment of the present invention, each group of the anti-slip components includes threaded rods and anti-slip teeth B. There are multiple threaded rods, and all of the multiple threaded rods are opened at one end of the connecting rod, and the multiple threaded rods are evenly distributed. There are multiple anti-slip teeth B, and all of the multiple anti-slip teeth B are opened at one end of the gasket, and the multiple anti-slip teeth B are evenly distributed. The tooth directions of the threaded rods and the anti-slip teeth B are opposite.

[0018] As a preferred embodiment of the present invention, each group of the elastic mechanisms includes a rubber ring and a mounting groove. The mounting groove is opened at one end of the nut. The rubber ring is fixedly connected in the mounting groove, and the rubber ring is threadedly connected to the anti-slip teeth A.

[0019] As a preferred embodiment of the present invention, the anti-slip teeth A are respectively arranged at both ends of the connecting rod, and the connecting rod and the two anti-slip teeth A are of an integrally formed structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this solution, the positioning rod can move on the nut, enabling the gasket to move. The installation hole is provided for placing the spring. By compressing the spring, a compressive elastic force can be generated, allowing the elastic force of the spring to hold against the gasket, causing the gasket to tightly adhere to the fixed object. The multiple anti-slip teeth B on the gasket can tightly adhere to the fixed object, thereby increasing the resistance between the anti-slip teeth B and the fixed object, restricting the nut from rotating, and achieving the anti-loosening effect. The positioning rod is movably inserted into the nut, facilitating the installation and disassembly of the gasket.

[0022] 2. In this solution, with the arrangement of the threaded rod, after the nut is tightened, the threaded rod can tightly adhere to the fixed object, thereby increasing the resistance and preventing the connecting rod from loosening after the nut is tightened. The rubber ring is threadedly connected to the anti-slip tooth A, and the elasticity of the rubber ring can generate damping, preventing the nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 2 is a cross-sectional view of the present utility model;

[0026] Figure 3 is the present utility model Figure 2 an enlarged view of part A in;

[0027] Figure 4 is the present utility model Figure 2 an enlarged view of part B in;

[0028] Figure 5 is an exploded view of the rubber ring part of the present utility model.

[0029] In the figure: 1, connecting rod; 2, threaded rod; 3, anti-slip tooth A; 4, gasket; 5, nut; 6, rubber ring; 7, positioning rod; 8, installation hole; 9, spring; 10, anti-slip tooth B; 11, installation groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Example 1

[0032] See also Figures 1-5 , the technical solution provided by this embodiment is as follows:

[0033] A stud bolt with an anti-loosening structure is composed of a connecting rod 1, anti-slip teeth A3, a nut 5, an anti-loosening mechanism and an elastic mechanism. Two anti-slip teeth A3 are provided, and the two anti-slip teeth A3 are respectively provided at both ends of the connecting rod 1, and the two anti-slip teeth A3 are symmetrically arranged. Two nuts 5 are provided, and each nut 5 is threadedly connected to each anti-slip tooth A3.

[0034] In a specific embodiment of the present utility model, the anti-slip teeth A3 are used for threaded connection with the nut 5 .

[0035] Specifically, the gasket component is arranged on the nut 5, and each group of gasket components includes a gasket 4, a positioning rod 7, a mounting hole 8 and a spring 9. There are two mounting holes 8, and the two mounting holes 8 are both opened at one end of the nut 5, and the two mounting holes 8 are symmetrically arranged. There are two positioning rods 7, and each positioning rod 7 is movably inserted in each mounting hole 8, and each positioning rod 7 is movably inserted through the nut 5 and extends to the outside of the nut 5. The gasket 4 is fixedly connected to the same side end of the two positioning rods 7, and the gasket 4 is movably sleeved on the anti-slip tooth A3. There are two springs 9, and the two springs 9 are fixedly connected to one side end of the gasket 4, each spring 9 is movably inserted in each mounting hole 8, and each spring 9 is movably sleeved on each positioning rod 7.

[0036] In a specific embodiment of the utility model, the installation hole 8 is used to move the positioning rod 7, and the positioning rod 7 can be moved on the nut 5 so that the gasket 4 can be moved. The installation hole 8 is used to place a spring 9, and a compression elastic force can be generated by compressing the spring 9, so that the elastic force of the spring 9 can support the gasket 4, so that the gasket 4 can be tightly attached to the fixed object, so that the multiple anti-slip teeth B10 on the gasket 4 can be tightly attached to the fixed object, thereby increasing the resistance between the anti-slip teeth B10 and the fixed object, thereby limiting the rotation of the nut 5, thereby achieving an anti-loosening effect, and the positioning rod 7 is movably inserted into the nut 5, so that the gasket 4 is easy to install and disassemble.

[0037] Specifically, the anti-slip components are arranged on the connecting rod 1 and the gasket component, and each set of anti-slip components includes a threaded rod 2 and an anti-slip tooth B10. A plurality of threaded rods 2 are provided, and the plurality of threaded rods 2 are opened at one end of the connecting rod 1, and the plurality of threaded rods 2 are evenly distributed. A plurality of anti-slip teeth B10 are provided, and the plurality of anti-slip teeth B10 are opened at one end of the gasket 4, and the plurality of anti-slip teeth B10 are evenly distributed, and the tooth directions of the threaded rod 2 and the anti-slip teeth B10 are opposite.

[0038] In a specific embodiment of the utility model, the threaded rod 2 is arranged so that after the nut 5 is tightened, the threaded rod 2 can be tightly attached to the fixed object, thereby increasing the resistance, so that the connecting rod 1 will not be loosened after the nut 5 is tightened.

[0039] Specifically, two groups of elastic mechanisms are provided, each group of elastic mechanisms is provided on each nut 5, each group of elastic mechanisms includes a rubber ring 6 and a mounting groove 11, the mounting groove 11 is opened at one end of the nut 5, the rubber ring 6 is fixedly connected in the mounting groove 11, and the rubber ring 6 is threadedly connected to the anti-slip tooth A3.

[0040] In a specific embodiment of the present invention, the installation groove 11 is used to fix the rubber ring 6, and the rubber ring 6 is threadedly connected to the anti-slip teeth A3, so that the elasticity of the rubber ring 6 can generate damping, thereby preventing the nut 5 from loosening.

[0041] Specifically, the anti-slip teeth A3 are respectively arranged at both ends of the connecting rod 1, and the connecting rod 1 and the two anti-slip teeth A3 are an integrally formed structure.

[0042] In a specific embodiment of the present invention, the anti-slip teeth A3 are respectively arranged at both ends of the connecting rod 1, and the connecting rod 1 and the two anti-slip teeth A3 are an integrally formed structure.

[0043] The working principle or working process of the stud bolt with anti-loosening structure provided by the utility model is as follows: the positioning rod 7 can be moved on the nut 5 so that the gasket 4 can be moved, and the installation hole 8 is provided for placing the spring 9, and the compression of the spring 9 can generate a compression elastic force, so that the elastic force of the spring 9 can support the gasket 4, so that the gasket 4 can be tightly attached to the fixed object, so that the multiple anti-slip teeth B10 on the gasket 4 can be tightly attached to the fixed object, thereby increasing the resistance between the anti-slip teeth B10 and the fixed object, thereby limiting the rotation of the nut 5, thereby achieving the anti-loosening effect, and the positioning rod 7 is movably inserted into the nut 5, so that the gasket 4 is easy to install and disassemble.

[0044] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-headed bolt with a loosening prevention structure, characterized in that, Comprising: Connecting rod (1); Anti-slip teeth A (3), two of which are provided, and the two anti-slip teeth A (3) are respectively arranged at both ends of the connecting rod (1), and the two anti-slip teeth A (3) are symmetrically arranged; Nuts (5), two of which are provided, and each nut (5) is threadedly connected to each anti-slip tooth A (3); Anti-loosening mechanisms, two groups of which are provided, and each group of anti-loosening mechanisms is arranged on the connecting rod (1) and each nut (5); and Elastic mechanisms, two groups of which are provided, and each group of elastic mechanisms is arranged on each nut (5).

2. The double-headed bolt with a loosening prevention structure according to claim 1, characterized in that, Each group of anti-loosening mechanisms includes: Gasket component, arranged on the nut (5); and Anti-slip component, arranged on the connecting rod (1) and the gasket component.

3. The double-headed bolt with a loosening prevention structure according to claim 2, wherein: Each group of gasket components includes a gasket (4), a positioning rod (7), mounting holes (8) and a spring (9). Two mounting holes (8) are provided, and the two mounting holes (8) are both opened at one end of the nut (5), and the two mounting holes (8) are symmetrically arranged. Two positioning rods (7) are provided, and each positioning rod (7) is movably inserted into each mounting hole (8), and each positioning rod (7) movably penetrates through the nut (5) and extends to the outside of the nut (5). The gasket (4) is fixedly connected to the same side end of the two positioning rods (7), and the gasket (4) is movably sleeved on the anti-slip tooth A (3). Two springs (9) are provided, and the two springs (9) are both fixedly connected to one side end of the gasket (4). Each spring (9) is movably inserted into each mounting hole (8), and each spring (9) is movably sleeved on each positioning rod (7).

4. The double-headed bolt with a loosening prevention structure according to claim 3, characterized in that: Each group of anti-slip components includes threaded rods (2) and anti-slip teeth B (10). A plurality of threaded rods (2) are provided, and the plurality of threaded rods (2) are all opened at one end of the connecting rod (1), and the plurality of threaded rods (2) are evenly distributed. A plurality of anti-slip teeth B (10) are provided, and the plurality of anti-slip teeth B (10) are all opened at one end of the gasket (4), and the plurality of anti-slip teeth B (10) are evenly distributed. The tooth directions of the threaded rods (2) and the anti-slip teeth B (10) are opposite.

5. The double-headed bolt with a loosening prevention structure according to claim 4, characterized in that: Each group of elastic mechanisms includes a rubber ring (6) and a mounting groove (11). The mounting groove (11) is opened at one end of the nut (5), the rubber ring (6) is fixedly connected in the mounting groove (11), and the rubber ring (6) is threadedly connected to the anti-slip tooth A (3).

6. The double-headed bolt with a loosening prevention structure according to claim 5, characterized in that: The anti-slip teeth A (3) are respectively arranged at both ends of the connecting rod (1), and the connecting rod (1) and the two anti-slip teeth A (3) are of an integrally formed structure.

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