Novel anti-loosening bolt

Abstract

The utility model discloses a novel anti-loosening bolt, which belongs to the technical field of bolts and comprises a base and a nut, the inner wall of the base is in threaded connection with a bolt body, and the bottom of the bolt body is fixedly connected with a fixing cone. The nut is screwed into the surface of the bolt body from bottom to top from the bottom of the bolt body and located at the bottom of the base and stops moving until the positions of the second through hole and the first through hole are located on the same horizontal plane, meanwhile, in the rotating process, the spring gasket is extruded through the nut, and when the spring gasket is flattened, elastic force can be generated, so that the spring gasket is tightly pressed. And after connection is completed, a plug pin is inserted into the second through hole and the first through hole, physical limiting is conducted on the nut and the bolt body through the plug pin, the stability when the nut and the bolt body are connected is improved again, and the nut and the bolt body can be prevented from being loosened. Therefore, the anti-loosening purpose is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolts, and particularly relates to a novel anti-loosening bolt. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener equipped with a nut. It is a type of fastener consisting of a head and a screw (a cylinder with external threads). It needs to be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, the bolt connection is a detachable connection.

[0003] Existing bolts need to cooperate with nuts during use. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, bolt connections are detachable connections. However, during long-term use, when the bolt is subjected to vibration, the bolt connection will undergo slight lateral displacement, resulting in relative movement between the connected components, gradually offsetting the friction between the bolt and the connection, and eventually causing the thread to gradually "rotate loose" under the action of vibration, losing the necessary tightening force. Therefore, we provide a new type of anti-loosening bolt. Utility Model Content

[0004] The purpose of the utility model is to provide a novel anti-loosening bolt to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new anti-loosening bolt, comprising a base and a nut, the inner wall of the base being threadedly connected to a bolt body, the bottom of the bolt body being fixedly connected to a fixing cone, the bottom of the base and the surface of the bolt body being sleeved with a spring washer, a No. 1 through hole being opened at the top of the surface of the bolt body, a No. 2 through hole corresponding to each other being opened on the surface of the nut, and a pin being inserted between the No. 2 through hole and the No. 1 through hole.

[0006] Using the above solution, the nut is screwed into the surface of the bolt body from the bottom of the bolt body from bottom to top, and is located at the bottom of the base until the positions of the No. 2 through hole and the No. 1 through hole are at the same horizontal plane and the movement stops. At the same time, during the rotation process, the spring washer is squeezed by the nut. When the spring washer is flattened, elastic force is generated, thereby increasing the friction between the bolt body and the nut. This additional external force further prevents the nut from loosening. After the connection is completed, the pin is inserted from the inside of the No. 2 through hole and the No. 1 through hole. The nut and the bolt body are physically limited by the pin, which further improves the stability of the connection between the nut and the bolt body, thereby achieving the purpose of preventing loosening.

[0007] As a preferred embodiment of a new anti-loosening bolt, the size of the No. 2 through hole is consistent with that of the No. 1 through hole, and the size of the No. 2 through hole and the No. 1 through hole are compatible with the latch.

[0008] By adopting the above solution, the sizes of the No. 2 through hole and the No. 1 through hole are adapted to the latch, so that the latch can quickly pass through the inside of the No. 1 through hole and the No. 2 through hole, which is convenient for the user to operate.

[0009] As a preferred embodiment of a new anti-loosening bolt, a protective pad is bonded to the bottom of the inner side of the nut, and the material of the protective pad is a rubber protective pad.

[0010] By adopting the above solution, by covering the outer side of the inner ring of the nut with a protective pad, the loosening problem caused by vibration can be effectively reduced, ensuring the stability and safety of the fastener.

[0011] As a preferred embodiment of a new type of anti-loosening bolt, the shape of the bolt body is stepped, and the thread directions on the two stepped sections are consistent.

[0012] With the above solution, since the base has a stepped shape, the base can generate a greater pre-tightening force during assembly, which helps to enhance the reliability and tightness of the connection between the base and the bolt body, and prevent gaps or relative slippage after loading.

[0013] As a preferred embodiment of a new type of anti-loosening bolt, the surface of the bolt body is coated with anti-rust paint, and the material of the anti-rust paint is mica iron oxide anti-rust paint.

[0014] By adopting the above solution, the bolt body is protected by the provision of anti-rust paint, thereby preventing the bolt body from being corroded during long-term use, thereby greatly improving the service life of the bolt body.

[0015] As a preferred embodiment of a new type of anti-loosening bolt, the inner wall of the nut is provided with an internal thread, and the surface of the bolt body is provided with an external thread.

[0016] By adopting the above solution and utilizing the compatibility of the external thread and the internal thread, the nut and the bolt body can be quickly connected, thereby greatly improving the efficiency during installation.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model screws the nut into the surface of the bolt body from the bottom of the bolt body from bottom to top, and is located at the bottom of the base until the positions of the No. 2 through hole and the No. 1 through hole are at the same horizontal plane and then stops moving. At the same time, during the rotation process, the spring washer is squeezed by the nut. When the spring washer is flattened, elastic force is generated, thereby increasing the friction between the bolt body and the nut. This additional external force further prevents the nut from loosening. After the connection is completed, the pin is inserted from the inside of the No. 2 through hole and the No. 1 through hole. The nut and the bolt body are physically limited by the pin, which further improves the stability of the connection between the nut and the bolt body, thereby achieving the purpose of preventing loosening.

[0019] 2. The utility model has a stepped base, which enables the base to generate a greater pre-tightening force during assembly, thereby helping to enhance the reliability and tightness of the connection between the base and the bolt body, and preventing gaps or relative slippage after loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the bolt body from a second perspective of the present invention;

[0022] Figure 3 This is a schematic diagram of the nut of the present invention from a second perspective.

[0023] In the figure: 1. Base; 2. Bolt body; 3. Fixing cone; 4. Spring washer; 5. Through hole No. 1; 6. Nut; 7. Through hole No. 2; 8. Pin; 9. Protective pad. DETAILED DESCRIPTION

[0024] See also Figure 1-3 A new type of anti-loosening bolt, including a base 1 and a nut 6, the inner wall of the base 1 is threadedly connected with a bolt body 2, see Figure 1As shown, the shape of the bolt body 2 is stepped, and the thread directions on the two steps are consistent. Because the shape of the base 1 is stepped, the base 1 can generate a greater pre-tightening force during assembly, which helps to enhance the reliability and tightness of the connection between the base 1 and the bolt body 2, and prevent gaps or relative slippage after loading. The surface of the bolt body 2 is coated with anti-rust paint, and the material of the anti-rust paint is mica iron oxide anti-rust paint. Through the setting of the anti-rust paint, the bolt body 2 is protected to prevent the bolt body 2 from being corroded during long-term use, which greatly improves the service life of the bolt body 2. The bottom of the bolt body 2 is fixedly connected with a fixing cone 3, and the bottom of the base 1 and the surface of the bolt body 2 are provided with a spring washer 4. The top of the surface of the bolt body 2 is provided with a No. 1 through hole 5, and the surface of the nut 6 is opened. There are two corresponding through holes 7, and a pin 8 is inserted between the two through holes 7 and the one through hole 5. The nut 6 is screwed into the surface of the bolt body 2 from the bottom of the bolt body 2 from bottom to top, and is located at the bottom of the base 1 until the positions of the two through holes 7 and the one through hole 5 are on the same horizontal plane and the movement stops. At the same time, during the rotation process, the spring washer 4 is squeezed by the nut 6. When the spring washer 4 is flattened, elastic force is generated, thereby increasing the friction between the bolt body 2 and the nut 6. This additional external force further prevents the nut 6 from loosening. After the connection is completed, the pin 8 is inserted from the inside of the two through holes 7 and the one through hole 5, and the nut 6 and the bolt body 2 are physically limited by the pin 8, which further improves the stability of the connection between the nut 6 and the bolt body 2, thereby achieving the purpose of preventing loosening.

[0025] See Figure 2 and Figure 3 As shown, the size of the second through hole 7 and the first through hole 5 is consistent, and the size of the second through hole 7 and the first through hole 5 is adapted to the bolt 8. By adapting the size of the second through hole 7 and the first through hole 5 to the bolt 8, the bolt can quickly pass through the inside of the first through hole 5 and the second through hole 7, which is convenient for the user to operate. Figure 3 As shown, a protective pad 9 is bonded to the bottom of the inner side of the nut 6. The material of the protective pad 9 is a rubber protective pad 9. By covering the outer side of the inner ring of the nut 6 with a layer of protective pad 9, the loosening problem caused by vibration can be effectively reduced to ensure the stability and safety of the fastener. Figure 1 As shown, the inner wall of the nut 6 is provided with an internal thread, and the surface of the bolt body 2 is provided with an external thread. By utilizing the compatibility of the external thread and the internal thread, the nut 6 and the bolt body 2 can be quickly connected, which greatly improves the efficiency during installation.

[0026] When in use, the bolt body 2 is rotated into the interior of the base 1 through an external tool. During the rotation process, the bottom of the bolt body 2 is provided with a fixing cone 3, and the bottom of the fixing cone 3 is relatively sharp, which can speed up the insertion of the bolt body 2 and subsequently improve the fixing effect of the bolt body 2. After the rotation is completed, the spring washer 4 is sleeved on the surface of the bolt body 2 and located at the bottom of the base 1. Then, the nut 6 is screwed into the surface of the bolt body 2 from the bottom to the top, and located at the bottom of the base 1 until the positions of the No. 2 through hole 7 and the No. 1 through hole 5 are at the same horizontal plane and the movement stops. At the same time, during the rotation process, the spring washer 4 is squeezed by the nut 6. When the spring washer 4 is When the spring washer 4 is flattened, it will generate elastic force, thereby increasing the friction between the bolt body 2 and the nut 6. This additional external force further prevents the nut 6 from loosening. After the connection is completed, the pin 8 is inserted from the inside of the No. 2 through hole 7 and the No. 1 through hole 5. The nut 6 and the bolt body 2 are physically limited by the pin 8, which further improves the stability of the connection between the nut 6 and the bolt body 2. Finally, because the shape of the base 1 is stepped, the base 1 can generate a greater pre-tightening force during assembly, which helps to enhance the reliability and tightness of the connection between the base 1 and the bolt body 2, prevent gaps or relative slippage after loading, and make the bolt body 2 have an anti-loosening function.

Claims

1. A new type of anti-loosening bolt, characterized by: The invention comprises a base (1) and a nut (6), wherein the inner wall of the base (1) is threadedly connected to a bolt body (2), the bottom of the bolt body (2) is fixedly connected to a fixing cone (3), the bottom of the base (1) and the surface of the bolt body (2) are sleeved with a spring washer (4), the top of the surface of the bolt body (2) is provided with a No. 1 through hole (5), the surface of the nut (6) is provided with a No. 2 through hole (7) corresponding to each other, and a pin (8) is inserted between the No. 2 through hole (7) and the No. 1 through hole (5).

2. A novel anti-loosening bolt according to claim 1, characterized in that: The sizes of the second through hole (7) and the first through hole (5) are consistent, and the sizes of the second through hole (7) and the first through hole (5) are compatible with the latch (8).

3. The novel anti-loosening bolt according to claim 1, characterized in that: A protective pad (9) is bonded to the bottom of the inner side of the nut (6), and the material of the protective pad (9) is a rubber protective pad (9).

4. The novel anti-loosening bolt according to claim 1, characterized in that: The bolt body (2) is in a stepped shape, and the thread directions on the two stepped sections are consistent.

5. The novel anti-loosening bolt according to claim 1, characterized in that: The surface of the bolt body (2) is coated with anti-rust paint, and the material of the anti-rust paint is mica iron oxide anti-rust paint.

6. The novel anti-loosening bolt according to claim 1, characterized in that: The inner wall of the nut (6) is provided with an internal thread, and the surface of the bolt body (2) is provided with an external thread.

Images