Fastener with sealing effect

Abstract

The utility model relates to the technical field of fasteners, in particular to a fastener with a sealing effect, which comprises a bolt body, the surface of the bolt body is fixedly sleeved with a circular plate, the bottom of the circular plate is provided with a circular groove, an inner cavity of the circular groove is movably connected with a blocking plate, the top of the inner cavity of the circular groove is fixedly connected with a spring, and the top of the spring is fixedly connected with a bolt. First grooves are formed in the front side and the rear side of the top of the circular plate correspondingly, the bottoms of inner cavities of the first grooves are connected with limiting mechanisms in a penetrating and threaded mode, and second grooves are formed in the front side and the rear side of the bottom of the circular plate correspondingly. Through cooperation of the circular plate, the circular groove, the plugging plate and the spring, the bolt has the advantage of a sealing function, during fastening, the bottom of the plugging plate always makes contact with the surface of a fastened object under the action of the spring, the plugging plate and the circular plate conduct sealing protection on the connecting position of the bolt body and the object, and the sealing effect is good. And water is prevented from entering the joint to cause corrosion, so that the service life of the bolt body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener with sealing effect. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely used. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies, etc. They are the most widely used mechanical basic parts.

[0003] After searching, the patent announcement number is CN211288390U, and the name is a utility model of a bolt fastener, including a No. 1 bolt. Through research and analysis, it is found that although the No. 1 bolt can be taken out by twisting the hexagonal bolt head with a hexagonal wrench during use, and there are various removal and fixing methods, thereby solving the problem of the single shape of the bolt head of the bolt fastener, however, the following disadvantages still exist to a certain extent.

[0004] For example, the device does not have a sealing function. During use, it is unable to seal and protect the connection between the bolt and the object, resulting in rainwater easily entering the connection during long-term use, causing the bolt to rust and affecting its service life. In order to solve the above technical problems, we have designed a fastener with a sealing effect. Utility Model Content

[0005] The purpose of the utility model is to provide a fastener with a sealing effect, which has the advantages of sealing function and anti-loosening function, and solves the problem that the existing fasteners cannot seal and protect the connection between the bolt and the object during use, and at the same time do not have the anti-loosening function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastener with a sealing effect, comprising a bolt body, a circular plate is fixedly sleeved on the surface of the bolt body, a circular groove is provided at the bottom of the circular plate, a sealing plate is movably connected to the inner cavity of the circular groove, a spring is fixedly connected to the top of the inner cavity of the circular groove, a first groove is provided on the front and rear sides of the top of the circular plate, a threaded limiting mechanism is passed through the bottom of the inner cavity of the first groove, and a second groove is provided on the front and rear sides of the bottom of the circular plate.

[0007] Preferably, the limiting mechanism includes a positioning bolt, the bottom end of which is threadedly connected to the first groove, the bottom end of which is fixedly connected to a positioning plate, the bottom of which is provided with anti-slip grooves, and the positioning plate is located in the inner cavity of the second groove.

[0008] Preferably, there are several springs, which are arranged in a surrounding manner.

[0009] Preferably, guide blocks are riveted on both sides of the inner cavity of the blocking plate, guide grooves are opened on both sides of the bottom of the circular plate, the top of the circular plate extends to the inner cavity of the guide groove, and the guide groove is connected to the circular groove.

[0010] Preferably, a limiting groove is provided on the top of the blocking plate, the bottom end of the spring is fixedly connected to the inner wall of the limiting groove, the bottom of the blocking plate extends to the bottom of the circular groove, and the blocking plate is made of rubber.

[0011] Preferably, a hexagonal groove is provided at the top of the bolt body, and a bolt thread is provided at the bottom of the surface of the bolt body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model has the advantage of sealing function through the cooperation of the circular plate, the circular groove, the sealing plate and the spring. When tightening, the bottom of the sealing plate is always in contact with the surface of the object being tightened under the action of the spring. The sealing plate and the circular plate seal and protect the connection between the bolt body and the object to prevent water from entering the connection and causing rust, thereby improving the service life of the bolt body.

[0014] 2. The utility model has the advantage of anti-loosening function through the cooperation of the first groove, the limiting mechanism and the second groove. After tightening is completed, the positioning bolt is rotated by a hexagonal wrench, and the positioning bolt is connected to the inner wall of the first groove through a thread to move the positioning bolt downward. The positioning bolt drives the positioning plate to move downward, and the bottom of the positioning plate is in close contact with the surface of the object, thereby limiting and fixing the bolt body to prevent it from rotating and avoiding the bolt body from falling off and loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 This is a three-dimensional bottom view of the circular plate structure of the utility model;

[0017] Figure 3 This is a three-dimensional bottom view of the structure of the utility model;

[0018] Figure 4 It is a three-dimensional bottom-up cross-sectional view of the local structure of the utility model;

[0019] Figure 5 This is a three-dimensional diagram of the plugging plate structure of the utility model;

[0020] Figure 6 The utility model structure Figure 4 A is an enlarged view of the middle image.

[0021] In the figure: 1. bolt body; 2. round plate; 3. round groove; 4. blocking plate; 5. spring; 6. first groove; 7. limiting mechanism; 8. second groove; 9. positioning bolt; 10. positioning plate; 11. guide block; 12. guide groove; 13. limiting groove; 14. hexagonal groove; 15. bolt thread. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 6 A fastener with a sealing effect comprises a bolt body 1, a circular plate 2 is fixedly sleeved on the surface of the bolt body 1, a circular groove 3 is provided at the bottom of the circular plate 2, a sealing plate 4 is movably connected to the inner cavity of the circular groove 3, a spring 5 is fixedly connected to the top of the inner cavity of the circular groove 3, a first groove 6 is provided on the front and rear sides of the top of the circular plate 2, a threaded limiting mechanism 7 is penetrated through the bottom of the inner cavity of the first groove 6, and a second groove 8 is provided on the front and rear sides of the bottom of the circular plate 2.

[0023] The limiting mechanism 7 includes a positioning bolt 9, the bottom end of which is threadedly connected to the first groove 6, and the bottom end of the positioning bolt 9 is fixedly connected to a positioning plate 10. The bottom of the positioning plate 10 is provided with anti-slip grooves, and the positioning plate 10 is located in the inner cavity of the second groove 8. By providing the anti-slip grooves, the friction force of the positioning plate 10 can be increased, making the limiting of the bolt body 1 more stable.

[0024] There are several springs 5 ​​, which are arranged in a circumferential manner. By arranging the springs 5 ​​, the bottom of the blocking plate 4 can always be in contact with the surface of the object, thereby improving its sealing effect.

[0025] Guide blocks 11 are riveted on both sides of the inner cavity of the sealing plate 4, guide grooves 12 are opened on both sides of the bottom of the circular plate 2, the top of the circular plate 2 extends to the inner cavity of the guide groove 12, and the guide groove 12 is connected with the circular groove 3. By setting the guide blocks 11 and the guide grooves 12, the sealing plate 4 can be guided so that when the bolt body 1 is rotated, the sealing plate 4 will not rotate in the inner cavity of the circular groove 3.

[0026] A limiting groove 13 is provided on the top of the sealing plate 4, the bottom end of the spring 5 is fixedly connected to the inner wall of the limiting groove 13, the bottom of the sealing plate 4 extends to the bottom of the circular groove 3, and the sealing plate 4 is made of rubber. By setting the limiting groove 13, the spring 5 can be limited so that the spring 5 will not bend.

[0027] A hexagonal groove 14 is provided at the top of the bolt body 1, and a bolt thread 15 is provided at the bottom of the surface of the bolt body 1. By providing the hexagonal groove 14, the user can not only rotate the bolt body 1 with an ordinary wrench, but also use a hexagonal wrench to rotate the bolt body 1, which is more applicable.

[0028] When in use, the bolt body 1 is passed through the object to be fastened, and then the bolt body 1 is rotated to tighten the bolt body 1. During the tightening process, the bolt body 1 drives the circular plate 2 and the sealing plate 4 to move downward, and the bottom of the sealing plate 4 contacts the object, thereby sealing and protecting the connection between the bolt body 1 and the object to prevent the bolt body 1 from rusting. Then, the positioning bolt 9 is tightened with a hexagonal wrench, and the positioning bolt 9 drives the positioning plate 10 to move downward, and the bottom of the positioning plate 10 is in close contact with the object, thereby limiting the bolt body 1 to prevent it from loosening or falling off, thereby improving the fastening effect of the bolt body 1.

[0029] To sum up: this fastener with a sealing effect, through the cooperation of the circular plate 2, the circular groove 3, the sealing plate 4, the spring 5, the first groove 6, the limiting mechanism 7 and the second groove 8, solves the problem that the existing fasteners cannot seal and protect the connection between the bolt and the object during use, and at the same time do not have an anti-loosening function.

Claims

1. A fastener with a sealing effect, comprising a bolt body (1), characterized in that: A circular plate (2) is fixedly sleeved on the surface of the bolt body (1), a circular groove (3) is provided at the bottom of the circular plate (2), a sealing plate (4) is movably connected to the inner cavity of the circular groove (3), a spring (5) is fixedly connected to the top of the inner cavity of the circular groove (3), a first groove (6) is provided at the front and rear sides of the top of the circular plate (2), a threaded limit mechanism (7) is penetrated through the bottom of the inner cavity of the first groove (6), and a second groove (8) is provided at the front and rear sides of the bottom of the circular plate (2).

2. A fastener with sealing effect according to claim 1, characterized in that: The limiting mechanism (7) comprises a positioning bolt (9), the bottom end of the positioning bolt (9) being threadedly connected to the first groove (6), the bottom end of the positioning bolt (9) being fixedly connected to a positioning plate (10), the bottom of the positioning plate (10) being provided with anti-slip grooves, and the positioning plate (10) being located in the inner cavity of the second groove (8).

3. A fastener with sealing effect according to claim 1, characterized in that: The number of the springs (5) is multiple, and the springs (5) are arranged in a surrounding manner.

4. A fastener with sealing effect according to claim 1, characterized in that: Guide blocks (11) are riveted on both sides of the inner cavity of the blocking plate (4), guide grooves (12) are provided on both sides of the bottom of the circular plate (2), the top of the circular plate (2) extends to the inner cavity of the guide groove (12), and the guide groove (12) is connected to the circular groove (3).

5. The fastener with sealing effect according to claim 1, characterized in that: A limiting groove (13) is provided on the top of the blocking plate (4); the bottom end of the spring (5) is fixedly connected to the inner wall of the limiting groove (13); the bottom of the blocking plate (4) extends to the bottom of the circular groove (3); and the blocking plate (4) is made of rubber.

6. A fastener with sealing effect according to claim 1, characterized in that: A hexagonal groove (14) is provided at the top of the bolt body (1), and a bolt thread (15) is provided at the bottom of the surface of the bolt body (1).

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