Reusable ball loose joint bolt

Abstract

The utility model relates to the technical field of bolt structures, and provides a reusable ball loose joint bolt which comprises a body, a connecting mechanism and a fastening mechanism. The reinforcing layer is arranged, a hard nitride layer can be formed on the nitrided surface, abrasion resistance and corrosion resistance are improved, the abrasion resistance of the body is improved, the service life of the body is prolonged, the sealing gasket is arranged, the bolt is isolated from the outside through the sealing gasket, water vapor is prevented from making contact with the body, and the service life of the body is prolonged. Oxidation rusting caused by moisture influence is effectively prevented, so that the service life is prolonged; the spring is arranged, the spring pushes out the partition plate and transmits the partition plate to the supporting pad, the supporting pad is arranged, the bolt is jacked up through the supporting pad, the bolt is tightly attached to the threaded sleeve, friction force between the bolt and the threaded sleeve can be increased, looseness is prevented, the movable ball is arranged, and transverse force is counteracted when the movable ball rotates, so that the service life of the movable ball is prolonged. And the service life of the spring is prevented from being influenced by damage caused by transverse force.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt structures, in particular to a reusable ball joint bolt. Background Technique

[0002] The ball joint bolt, as an efficient and convenient connecting piece, is favored for its unique reusable characteristic. It is made of high-quality materials to ensure its firmness and durability. The so-called reusable means that during the disassembly and assembly process, the ball joint bolt will not be damaged and can be used multiple times. This characteristic greatly reduces the maintenance cost and improves the work efficiency. It is applicable to the connection and fixation of various equipment and machinery. With its excellent flexibility and reliability, the ball joint bolt has become an ideal choice for engineering installation and equipment maintenance. Today, in the pursuit of green environmental protection, energy conservation and emission reduction, the reusable ball joint bolt undoubtedly injects new vitality into industrial development.

[0003] According to the search, the Chinese invention publication number: CN112576596A discloses a reusable ball joint bolt. This reusable ball joint bolt of the present invention designs a flip-type gasket, a flip mating body and a sleeve with special structures. The inclined surface of the sleeve cooperates with the inclined surface of the gasket to ensure that the flip-type gasket can be correctly flipped during work and avoid installation failure; the flip-type gasket and the flip mating body are connected into one body through a convex head and a groove, with a compact structure, enabling this fastener to achieve fast and precise single-sided fixed connection through the flipping movement of multiple flip-type gaskets, solving the problem of bolt installation failure under certain special working conditions, and the installation process is simple and reliable, easy to disassemble, reusable, with good mechanical properties and can bear large bearing capacity; the flip-type gasket is already connected to the flip mating body before installation. Compared with ordinary gaskets, the installation process of ordinary gaskets is omitted, and after installation, the inner end surface of the round head bolt is in contact with multiple flip-type gaskets in the shape of flat gaskets at the same time, which is circumferential multi-point force, with uniform force, good mechanical properties and can bear large bearing capacity; the overall structure is simple and compact, with low processing cost, convenient installation and assembly, neither requiring pre-installation treatment of gaskets nor additional installation tool assistance, and is easy to use in actual operation, which can greatly improve the installation efficiency.

[0004] However, when implementing the above technical solutions, there are some problems that need to be considered: First, the screw of this bolt is prone to wear after multiple uses and will be oxidized and rusted under the influence of moisture, reducing its service life. Second, it is prone to looseness after connection, resulting in a decrease in the structural stability of the fixation, and it is prone to safety accidents and cause personal injuries. Content of the Utility Model

[0005] The purpose of the content of the utility model is to provide a reusable ball joint bolt to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: A reusable ball joint bolt, comprising a main body, a connecting mechanism and a fastening mechanism. A connecting mechanism is arranged on the outer side of the main body. A reinforcing layer is arranged on the outer side of the main body. A sealing gasket is arranged on the outer side of the reinforcing layer. A fastening mechanism is arranged inside the main body. An inner cavity is arranged inside the main body. A spring is arranged inside the inner cavity.

[0007] Preferably, the reinforcing layer is a nitrided metal, and the reinforcing layer is attached to the main body.

[0008] Preferably, the sealing gasket is closely attached to the reinforcing layer. The sealing gasket is made of rubber material, and the size of the sealing gasket matches that of the connecting part.

[0009] Preferably, a connecting part is arranged above the main body. A connecting ball head is arranged above the connecting part. A wear-resistant layer is arranged inside the connecting ball head.

[0010] Preferably, the top end of the spring is connected to the inner cavity. A partition plate is connected to the bottom of the spring. The partition plate and the inner cavity form a movable structure through the spring.

[0011] Preferably, a movable ball is connected to the bottom of the partition plate. Multiple groups of movable balls are arranged. A limiting plate is arranged at the bottom of the movable ball.

[0012] Preferably, a connecting shaft is connected to the bottom of the limiting plate. The size of the connecting shaft matches that of the limiting ring. The limiting ring is connected to the main body. The size of the limiting ring is larger than that of the limiting plate.

[0013] Preferably, a support pad is connected to the bottom of the connecting shaft. The support pad is made of rubber material, and the size of the support pad matches that of the inner cavity.

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

[0015] By setting the reinforcing layer in the utility model, a hard nitride layer can be formed on the surface after nitriding treatment, improving wear resistance and corrosion resistance, enhancing the wear resistance of the main body, and thus increasing its service life. By setting the sealing gasket, the sealing gasket isolates the bolt from the outside, preventing water vapor from contacting the main body, effectively preventing oxidation and rust caused by moisture, and thereby increasing its service life.

[0016] In this utility model, by setting a spring, the spring pushes out the partition plate and transmits the force to the support pad. By setting the support pad, the support pad jacks up the bolt and fits tightly with the threaded sleeve, which can increase the friction between the bolt and the threaded sleeve and prevent loosening. By setting the movable ball, when the movable ball rotates, the lateral force is offset, preventing the spring from being damaged by the lateral force and affecting its service life. Through the above-mentioned component structures, the stability of the bolt connection is improved, preventing safety accidents and causing personal injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of this utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the main body of this utility model.

[0019] Figure 3 It is a schematic diagram of the cooperation of the main body, inner cavity and limiting ring of this utility model.

[0020] Figure 4 It is a schematic diagram of the cooperation of the gasket, connecting ball head and wear-resistant layer of this utility model.

[0021] In the figure: 1. Main body; 2. Connecting mechanism; 201. Connecting part; 202. Reinforcing layer; 203. Gasket; 204. Connecting ball head; 205. Wear-resistant layer; 3. Fastening mechanism; 301. Inner cavity; 302. Spring; 303. Partition plate; 304. Movable ball; 305. Limiting plate; 306. Connecting shaft; 307. Limiting ring; 308. Support pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and effects of this utility model easy to understand, the following further elaborates this utility model in combination with specific embodiments.

[0023] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a reusable ball joint bolt, including a main body 1, a connection mechanism 2 and a fastening mechanism 3. The connection mechanism 2 is arranged on the outer side of the main body 1. A reinforcing layer 202 is arranged on the outer side of the main body 1. A gasket 203 is arranged on the outer side of the reinforcing layer 202. The fastening mechanism 3 is arranged inside the main body 1. An inner cavity 301 is arranged inside the main body 1. A spring 302 is arranged inside the inner cavity 301.

[0027] Specifically, the reinforcing layer 202 is a nitrided metal. The reinforcing layer 202 is attached to the main body 1. A hard nitride layer can be formed on the surface after nitriding treatment, improving wear resistance and corrosion resistance, enhancing the wear resistance of the main body 1, so as to improve its service life.

[0028] Specifically, the gasket 203 is closely attached to the reinforcing layer 202. The gasket 203 is made of rubber. The gasket 203 matches the size of the connection part 201. The gasket 203 isolates the bolt from the outside, preventing water vapor from contacting the main body 1, effectively preventing oxidation and rusting affected by moisture, so as to improve its service life.

[0029] Specifically, a connection part 201 is arranged above the main body 1. A connection ball head 204 is arranged above the connection part 201. A wear-resistant layer 205 is arranged inside the connection ball head 204. The wear-resistant layer 205 can improve the service life of the connection ball head 204, avoiding uneven external force wear and rupture of the connection ball head 204 when disassembling and assembling the bolt.

[0030] Specifically, the top end of the spring 302 is connected to the inner cavity 301, and a partition plate 303 is connected to the bottom of the spring 302. The partition plate 303 and the inner cavity 301 form a movable structure through the spring 302. The spring 302 pushes out the partition plate 303 and transmits it to the support pad 308.

[0031] Specifically, a movable ball 304 is connected to the bottom of the partition plate 303. Multiple groups of movable balls 304 are provided. A limiting plate 305 is arranged at the bottom of the movable ball 304. When the movable ball 304 rotates, the lateral force is offset, preventing the spring 302 from being damaged by the lateral force and affecting its service life.

[0032] Specifically, a connecting shaft 306 is connected to the bottom of the limiting plate 305. The connecting shaft 306 matches the size of the limiting ring 307. The limiting ring 307 is connected to the main body 1. The size of the limiting ring 307 is larger than that of the limiting plate 305. The connecting shaft 306 moves within the limiting ring 307 to change the position of the support pad 308. The limiting plate 305 can prevent the support pad 308 from falling off.

[0033] Specifically, a support pad 308 is connected to the bottom of the connecting shaft 306. The support pad 308 is made of rubber. The support pad 308 matches the size of the inner cavity 301. The support pad 308 jacks up the bolt and fits tightly with the threaded sleeve, which can increase the friction between the bolt and the threaded sleeve and prevent loosening.

[0034] Working principle: When disassembling and assembling the bolt, the wear-resistant layer 205 can improve the service life of the connecting ball head 204, avoiding uneven external force wear and rupture of the connecting ball head 204 when disassembling and assembling the bolt. And a hard nitride layer can be formed on the surface after nitriding treatment, improving wear resistance and corrosion resistance, enhancing the wear resistance of the main body 1 to improve its service life. After installing the bolt, the sealing gasket 203 isolates the bolt from the outside world, preventing water vapor from contacting the main body 1 and effectively preventing oxidation and rust caused by moisture to improve its service life. At the same time, the spring 302 pushes out the partition plate 303, the connecting shaft 306 moves within the limiting ring 307 to change the position of the support pad 308. The limiting plate 305 can prevent the support pad 308 from falling off and transmits it to the support pad 308. The support pad 308 jacks up the bolt and fits tightly with the threaded sleeve, which can increase the friction between the bolt and the threaded sleeve and prevent loosening. The movable ball 304 rotates to offset the lateral force, preventing the spring 302 from being damaged by the lateral force and affecting its service life.

[0035] The above are only embodiments of the present utility model, and common knowledge such as specific structures and characteristics known in the solution is not described in detail herein. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A reusable ball - socket union bolt, comprising a main body (1), a connecting mechanism (2) and a fastening mechanism (3), characterized in that: A connecting mechanism (2) is arranged on the outer side of the main body (1), a reinforcing layer (202) is arranged on the outer side of the main body (1), a sealing gasket (203) is arranged on the outer side of the reinforcing layer (202), a fastening mechanism (3) is arranged inside the main body (1), a cavity (301) is arranged inside the main body (1), and a spring (302) is arranged inside the cavity (301).

2. The reusable ball joint bolt according to claim 1, wherein: The reinforcing layer (202) is a nitrided metal and is in contact with the main body (1).

3. The reusable ball socket bolt according to claim 2, characterized in that: The sealing gasket (203) is in close contact with the reinforcing layer (202), the sealing gasket (203) is made of rubber, and the sealing gasket (203) matches the size of the connecting part (201).

4. A reusable ball joint bolt according to claim 1, characterized in that: A connecting part (201) is arranged above the main body (1), a connecting ball head (204) is arranged above the connecting part (201), and a wear-resistant layer (205) is arranged inside the connecting ball head (204).

5. A reusable ball joint bolt according to claim 1, characterized in that: The top end of the spring (302) is connected to the cavity (301), the bottom of the spring (302) is connected to a partition plate (303), and the partition plate (303) and the cavity (301) form a movable structure through the spring (302).

6. The reusable ball joint bolt according to claim 5, characterized in that: The bottom of the partition plate (303) is connected to a movable ball (304), multiple groups of movable balls (304) are arranged, and a limiting plate (305) is arranged at the bottom of the movable ball (304).

7. A reusable ball joint bolt according to claim 6, characterized in that: The bottom of the limiting plate (305) is connected to a connecting shaft (306), the connecting shaft (306) matches the size of the limiting ring (307), the limiting ring (307) is connected to the main body (1), and the size of the limiting ring (307) is larger than the size of the limiting plate (305).

8. A reusable ball joint bolt according to claim 7, characterized in that: The bottom of the connecting shaft (306) is connected to a support pad (308), the support pad (308) is made of rubber, and the support pad (308) matches the size of the cavity (301).

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