Bolt and nut fastening assembly

Abstract

The utility model relates to the technical field of bolts and nuts, and discloses a bolt and nut fastening assembly which comprises a double-end stud and is characterized in that the double-end stud is provided with threaded grooves, a nut, a first cushion block, a nut, a second cushion block, an annular groove and a sealing ring, the threaded grooves are formed in the left end and the right end of the double-end stud, and the nut is arranged in the annular groove. The outer wall of the double-end stud is sleeved with the nut in a threaded mode, and the first cushion block is fixedly connected with the nut. According to the utility model, the connecting parts on the two sides of the connecting piece can be sealed, corrosion damage to the connecting parts can be avoided, meanwhile, the contact area and the pressure distribution uniformity of the connecting parts can be increased, local stress concentration can be reduced, the stability and the reliability of connection can be improved, and the connecting piece can be prevented from being damaged when bearing vibration, impact or dynamic load. The fastening state of connection can be better kept, and looseness and displacement are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts and nuts, in particular to a bolt and nut fastening assembly. Background Art

[0002] A bolt and nut fastening assembly is a mechanical device used to connect and fix two or more parts. It usually consists of a bolt, a nut, and possibly a washer.

[0003] According to Chinese patent application number "CN213298535U", a bolt and nut assembly is disclosed, belonging to the field of fastening technology, and includes a bolt body and a locking nut. The locking nut includes an abutment ring and a nut body, the abutment ring being fixedly connected to the nut body. The locking nut sidewall has a mounting opening extending into a threaded hole of the locking nut. A locking member is slidably connected within the mounting opening. The mounting opening includes an elastic member, which is respectively connected to the mounting opening and the locking member. The screw of the bolt body has a plurality of locking grooves that are inserted into the locking member, and the locking grooves are arranged along the length of the screw. The nut body is provided with a control assembly that pushes the locking member to slide. The bolt and nut assembly of the utility model reduces the possibility of loosening between the locking nut and the bolt body and increases the firmness of the connection between the locking nut and the bolt body. The above-mentioned assembly does not have a sealing structure when in use. Due to the lack of effective sealing measures at the connection, impurities such as dust and moisture can easily enter the connection, causing corrosion and damage to the connection parts. Therefore, a bolt and nut fastening assembly is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a bolt and nut fastening assembly in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a bolt and nut fastening assembly, including a stud, the stud is provided with a thread groove, a nut, a first gasket, a nut, a second gasket, an annular groove, and a sealing ring, the thread groove is opened at the left and right ends of the stud, the nut thread sleeve is arranged on the outer wall of the stud, the first gasket is fixedly connected to the nut, the nut thread sleeve is arranged on the outer wall of the stud, the second gasket is fixedly connected to the nut, the annular groove is respectively opened on the side close to each other of the first gasket and the second gasket, and the sealing ring is installed on the inner wall of the annular groove.

[0006] Preferably, the stud is further provided with a circular groove, which is opened at the left and right ends of the stud. Through this preference, the cylindrical magnets fixedly mounted on the inner walls of the circular grooves at both ends of the stud can generate magnetic force.

[0007] Preferably, the stud is further provided with a cylindrical magnet, which is fixedly mounted on the inner wall of the circular groove. Through this preference, the cylindrical magnet generates magnetic force, which can attract the nut and the cap.

[0008] Preferably, the stud is further provided with a connecting piece, which is located between the first cushion block and the second cushion block. According to this preference, the connecting piece can be sleeved on the outer wall of the stud through the connecting through hole.

[0009] Preferably, the connector is further provided with a connecting through hole, and the connector is sleeved on the outer wall of the stud through the connecting through hole. According to this preference, the connector is sleeved on the outer wall of the stud through the connecting through hole.

[0010] Preferably, the nut, first spacer, nut, second spacer, and sealing ring are each in two sets, and the two sets of nuts, first spacers, nut, second spacers, and sealing rings are respectively installed at the left and right ends of the stud. With this preference, the first spacer and the second spacer can seal the connection parts on both sides of the connector.

[0011] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0012] 1. The bolt and nut fastening assembly can seal the connection parts on both sides of the connector through the cooperation of the thread groove, nut, first spacer, nut, second spacer, ring groove and sealing ring to avoid corrosion damage to the connection parts. At the same time, it can also increase the contact area and pressure distribution uniformity of the connection parts, which helps to reduce local stress concentration and improve the stability and reliability of the connection. When subjected to vibration, impact or dynamic loads, it can better maintain the tight state of the connection and prevent loosening and displacement.

[0013] 2. The bolt and nut fastening assembly, through the cooperation of the circular groove and the cylindrical magnet, generates magnetic force by the cylindrical magnet, which can adsorb the nut and cap, and can achieve the purpose of rapid positioning to facilitate installation. For some situations that need to be installed at special angles or in hard-to-reach locations, magnetic adsorption can make it easier to guide the nut and cap to the correct position, thereby reducing the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the double-ended stud structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the nut and nut structure of the utility model;

[0017] Figure 4This is a schematic diagram of the structure of the connecting piece of the utility model.

[0018] In the figure: 1. stud; 2. threaded groove; 3. nut; 4. first spacer; 5. nut; 6. second spacer; 7. ring groove; 8. sealing ring; 9. circular groove; 10. cylindrical magnet; 11. connecting piece; 12. connecting through hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0023] See also Figure 1-4An embodiment of the present utility model is as follows: a bolt and nut fastening assembly includes a stud 1, a thread groove 2, a nut 3, a first spacer 4, a nut 5, a second spacer 6, an annular groove 7, and a sealing ring 8 are provided on the stud 1. The thread groove 2 is opened at the left and right ends of the stud 1, the nut 3 is threadedly sleeved on the outer wall of the stud 1, the first spacer 4 is fixedly connected to the nut 3, the nut 5 is threadedly sleeved on the outer wall of the stud 1, the second spacer 6 is fixedly connected to the nut 5, and the annular grooves 7 are respectively opened on the first spacer 4 and the second spacer 6 are close to each other, the sealing ring 8 is installed on the inner wall of the ring groove 7, the stud 1 is further provided with a connecting piece 11, the connecting piece 11 is located between the first gasket 4 and the second gasket 6, the connecting piece 11 is further provided with a connecting through hole 12, the connecting piece 11 is sleeved on the outer wall of the stud 1 through the connecting through hole 12, the nut 3, the first gasket 4, the nut 5, the second gasket 6, and the sealing ring 8 are respectively in two groups, and the two groups of nuts 3, the first gasket 4, the nut 5, the second gasket 6, and the sealing ring 8 are respectively installed at the left and right ends of the stud 1;

[0024] Working principle: When the stud 1 is installed and tightened, the nut 3 is first threaded onto the outer wall of the stud 1, and the nut 3 is installed on the stud 1 with the first gasket 4, and then a sealing ring 8 can be installed on the inner wall of the annular groove 7 opened on the first gasket 4, and then the connecting piece 11 is sleeved on the outer wall of the stud 1 through the connecting through hole 12. The first gasket 4 and a sealing ring 8 play a sealing role, thereby preventing dust and the like from entering the connection part on one side of the connecting piece 11, and then another sealing ring 8 can be installed on the inner wall of the annular groove 7 opened on the second gasket 6, and the nut 5 is threaded onto the outer wall of the stud 1, and the nut 5 drives the second gasket 6 to seal the connection part on the other side of the connecting piece 11, and at the same time increases the contact area and pressure distribution uniformity of the connection part, which helps to reduce local stress concentration, improve the stability and reliability of the connection, and better maintain the tightness of the connection when subjected to vibration, impact or dynamic loads to prevent loosening and displacement.

[0025] See also Figure 1-4 On the basis of the above embodiment, in another embodiment of the present invention, a circular groove 9 is further provided on the stud 1, and the circular groove 9 is opened at the left and right ends of the stud 1. A cylindrical magnet 10 is also provided on the stud 1, and the cylindrical magnet 10 is fixedly installed on the inner wall of the circular groove 9.

[0026] Working principle: When the nut 3 and the nut 5 are respectively equipped with the first spacer 4 and the second spacer 6 and are ready to be threaded onto the outer wall of the stud 1, the cylindrical magnets 10 fixedly installed on the inner walls of the circular grooves 9 at both ends of the stud 1 generate magnetic force, which can adsorb the nut 3 and the nut 5, and can achieve the purpose of rapid positioning for easy installation. For some situations where installation needs to be carried out at special angles or in difficult-to-reach locations, magnetic adsorption can make the nut 3 and the nut 5 more easily guided to the correct position, thereby reducing the difficulty of installation.

[0027] This utility model provides a bolt and nut fastening assembly. There are many methods and approaches to implement this technical solution. The above is only a preferred embodiment of the utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the utility model. Such improvements and modifications should also be considered within the scope of protection of the utility model. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A bolt and nut fastening assembly, comprising a stud (1), characterized in that: The stud bolt (1) is provided with a thread groove (2), a nut (3), a first pad (4), a nut (5), a second pad (6), an annular groove (7), and a sealing ring (8). The thread groove (2) is provided at the left and right ends of the stud bolt (1). The nut (3) is threadedly sleeved on the outer wall of the stud bolt (1). The first pad (4) is fixedly connected to the nut (3). The nut (5) is threadedly sleeved on the outer wall of the stud bolt (1). The second pad (6) is fixedly connected to the nut (5). The annular groove (7) is respectively provided on the side of the first pad (4) and the second pad (6) close to each other. The sealing ring (8) is installed on the inner wall of the annular groove (7).

2. The bolt and nut fastening assembly according to claim 1, characterized in that: The stud bolt (1) is also provided with a circular groove (9), and the circular groove (9) is opened at the left and right ends of the stud bolt (1).

3. The bolt and nut fastening assembly according to claim 1, characterized in that: A cylindrical magnet (10) is also provided on the stud bolt (1), and the cylindrical magnet (10) is fixedly mounted on the inner wall of the circular groove (9).

4. The bolt and nut fastening assembly according to claim 1, characterized in that: A connecting piece (11) is also provided on the stud bolt (1), and the connecting piece (11) is located between the first cushion block (4) and the second cushion block (6).

5. The bolt and nut fastening assembly according to claim 4, characterized in that: The connecting piece (11) is further provided with a connecting through hole (12), and the connecting piece (11) is sleeved on the outer wall of the stud bolt (1) through the connecting through hole (12).

6. The bolt and nut fastening assembly according to claim 1, characterized in that: The nut (3), the first spacer (4), the nut (5), the second spacer (6), and the sealing ring (8) are respectively provided in two groups, and the two groups of the nut (3), the first spacer (4), the nut (5), the second spacer (6), and the sealing ring (8) are respectively installed at the left and right ends of the stud (1).

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