Anti-loosening bolt and screw structure for automobiles

Abstract

This invention discloses a structure for an anti-loosening bolt and screw used in automobiles, relating to the field of automotive parts technology. The bolt includes a nut threaded onto its outer wall, an internal support mechanism on its inner side, and a limiting mechanism on its outer wall. The invention uses an external hexagonal head and a screw for fixed connection. A pan head with a support pad at the top provides additional support. The hexagonal nut has a recessed annular groove communicating with the inner side of a spherical groove. A gel ball is located inside the spherical groove. During installation and tightening, the bottom surface of the external hexagonal head and the top surface of the hexagonal nut rotate and press against the automotive parts. After sufficient pressure, a needle punctures the gel ball, causing the internal gel to be squeezed out and guided through the recessed annular groove onto the surface of the hexagonal nut. This facilitates adhesion of the hexagonal nut to the automotive parts, forming a tight connection with the external hexagonal head and effectively preventing loosening.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a structure for anti-loosening bolts and screws used in automobiles. Background Technology

[0002] Bolts and screws are commonly used connecting elements in automobile manufacturing and assembly. In the automotive industry, bolts and screws are essential and practical fasteners, primarily used to secure the connections between components during the manufacturing process, playing a crucial role in automobiles.

[0003] In the prior art, such as the patent application CN201721532422.9 entitled "An anti-loosening bolt and screw structure for automobiles," the structure includes: a hexagonal nut, a pawl, and a cross wedge groove; the hexagonal nut, washer, and screw are cold-forged integrally formed; the pawl is located at the bottom of the washer, and the pawl and washer are integrally formed; the cross wedge groove is located at the bottom of the screw, and the cross wedge groove and screw are integrally formed; the wedge is located inside the screw, and the wedge is connected to the screw by an embedding method. Through structural improvements, this design offers advantages such as reduced deformation and slippage during tightening, a more reasonable overall structure that shortens production time, double anti-loosening protection to ensure tightening firmness, and the elimination of the need for combined assembly parts. This effectively solves the problems and shortcomings of existing devices.

[0004] Because automobiles experience various vibrations, impacts, and temperature changes during operation, traditional bolts and screws are prone to loosening. This can lead to insecure connections between automotive components, affecting the safety and reliability of the vehicle. To address these issues, a structure for anti-loosening bolts and screws in automobiles is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a structure for anti-loosening bolts and screws in automobiles, in order to solve the problem mentioned in the background art that, during operation, automobiles experience various vibrations, impacts, and temperature changes, and traditional bolts and screws are prone to loosening, which may lead to insecure connections of automobile components and affect the safety and reliability of the automobile.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a structure for an anti-loosening bolt and screw for automobiles, comprising a bolt, a nut threaded onto the outer wall of the bolt, an inner support mechanism on the inner side of the bolt, a limit mechanism on the outer wall of the bolt, the bolt including an external hexagonal head, a pan head at the bottom of the external hexagonal head, a screw rod at the center of the bottom side of the pan head, and a hexagonal nut including a hexagonal cap, the surface of the hexagonal cap having an annular groove, the top of the hexagonal cap having a spherical groove evenly spaced clockwise along the circle, a pin at the bottom of the inner side of the spherical groove, and a... It contains a gel ball, and the external hexagonal head is fixedly connected to the screw. The pan head is supported by a pad on top. The hexagonal nut has a concave annular groove that communicates with the inner side of the spherical groove. The gel ball is placed inside the spherical groove. When tightening during installation, the bottom surface of the external hexagonal head and the top surface of the hexagonal nut rotate and press against the automotive parts. After being pressed to a certain extent, the needle will rupture the gel ball, causing the gel inside to be squeezed out and guided through the concave annular groove to flow on the surface of the hexagonal nut. This helps the hexagonal nut to adhere to the automotive parts and form a tight connection with the external hexagonal head, effectively preventing loosening.

[0007] The inner support mechanism includes a mounting ring, the top of which is fixedly connected to the bottom of the pan head. Multiple spring plates are symmetrically and evenly distributed at the bottom of the mounting ring. A spring is located inside each spring plate, and a bottom support ring is connected to the bottom of each spring plate. Multiple arc-shaped strips are evenly distributed clockwise along the bottom of the bottom support ring. The mounting ring provides a distributed connection between the spring plates and the bottom support ring, and the bottom of the spring plates and springs is connected to the bottom support ring. Several arc-shaped strips are distributed at the bottom of the bottom support ring. This facilitates the spring plates, in conjunction with the springs, to generate a pushing force on the bottom support ring during bolt tightening, further compressing the arc-shaped strips. This increases friction and counterforce, thereby ensuring stability during use.

[0008] Preferably, the limiting mechanism includes limiting strips. The side wall of the screw is evenly provided with a plurality of limiting slots clockwise along the circumferential direction. Each limiting strip is inserted into the inner side of the limiting slot and is slidably connected to the inner side of the limiting slot, and passes through the inner side of the hexagonal nut. This helps to provide a limiting function at the corresponding position, effectively preventing the thread from turning back, thereby improving stability and avoiding loosening.

[0009] Preferably, the inner side of the external hexagon head is provided with an internal hexagon head, and the bottom of the pan head is provided with an external anti-loosening washer and an internal anti-loosening washer. The external anti-loosening washer is located outside the internal anti-loosening washer. Several knurled pads are evenly distributed in a clockwise direction on the bottom of the external and internal anti-loosening washer. The internal hexagon head is located on the top of the external hexagon head and can be used with a hex wrench for tightening, which improves the operating range. Both the external and internal anti-loosening washer are located at the bottom of the pan head, and multiple knurled pads are distributed on the bottom surface of each. This helps to increase the friction when the knurled pads come into contact with the automotive parts, thereby preventing the bolts from loosening after tightening.

[0010] Preferably, a groove is provided between the outer anti-loosening pad and the inner anti-loosening pad, and the inner support mechanism is movably installed on the inner side of the groove. The groove can provide mounting holes, which facilitates the installation of the components of the inner support mechanism on its inner side, thereby increasing the friction.

[0011] Preferably, the surface of the hexagonal nut has a plurality of friction strips evenly distributed clockwise, one end of each friction strip is connected to a connecting block, and the connecting blocks are all connected to the inner side of the colloid balloon. The friction strips are distributed on the surface of the hexagonal nut and form protrusions, which helps to provide effective anti-slip when connected to components, increases friction, and facilitates the installation and connection of the colloid balloon through the connecting blocks.

[0012] Preferably, guide strips are fixedly installed on both sides of the limiting strip, and guide grooves are symmetrically opened on the inner side of the limiting groove. The guide grooves are inserted and connected to the inner side of the guide strip. The guide strip and the guide groove are slidably connected, which helps to provide guidance, ensure accurate connection and limit, and provide further limit after the nut is connected, effectively preventing loosening.

[0013] Preferably, the surface of the hexagonal nut is evenly provided with a plurality of flow channels. The inner side of the flow channels is connected to the inner side of the spherical groove through a concave annular groove. The flow channels provide space for the liquid adhesive to flow, so that the liquid adhesive is distributed along the flow channels, so that it can fully contact the parts and achieve a stable connection.

[0014] Preferably, the inner wall of the hexagonal nut has a limiting groove, and the limiting strip is movably connected to the inner side of the limiting groove. The limiting groove facilitates the limiting function of the connection and ensures stability.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, the external hexagonal head is fixedly connected to the screw, and the pan head is supported by a pad at the top. At the same time, the hexagonal nut has a concave annular groove that communicates with the inner side of the spherical groove. A colloid ball is provided inside the spherical groove. When tightening during installation, the bottom surface of the external hexagonal head and the top surface of the hexagonal nut rotate and press against the automotive parts. After being pressed to a certain extent, the needle will rupture the colloid ball, causing the internal colloid to be squeezed out and guided through the concave annular groove to flow on the surface of the hexagonal nut. This facilitates the adhesion of the hexagonal nut to the automotive parts and forms a tight connection with the external hexagonal head, effectively preventing loosening.

[0017] 2. In this invention, the spring sheet and the bottom support ring are provided with distributed connection by the mounting ring, and the bottom support ring is connected to the bottom of the spring sheet and the bottom of the spring. Several arc-shaped strips are distributed at the bottom of the bottom support ring. This is beneficial for the spring sheet to generate a pushing force on the bottom support ring in conjunction with the spring during the tightening of the bolt, so that the arc-shaped strips are further squeezed, which helps to increase the friction and the reverse force, thereby ensuring the stability of use.

[0018] 3. In this invention, the limiting strip is slidably connected to the inner side of the limiting groove and passes through the inner side of the hexagonal nut, which helps to provide a limiting function at the corresponding position, effectively preventing the thread from turning back, thereby improving stability and avoiding loosening. Attached Figure Description

[0019] Figure 1 This is a perspective view of the structure of an anti-loosening bolt and screw for automobiles according to the present invention;

[0020] Figure 2 This is a schematic diagram of another angle of the structure of the anti-loosening bolt and screw for automobiles according to the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0022] Figure 4 This is a schematic diagram of the nut portion of a structure for an anti-loosening bolt and screw used in automobiles according to the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B in the diagram;

[0024] Figure 6 This is a partially exploded structural diagram of an anti-loosening bolt and screw structure for automobiles according to the present invention.

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C;

[0026] Figure 8 This is a partially exploded structural diagram of an anti-loosening bolt and screw structure for automobiles according to the present invention;

[0027] Figure 9 For the present invention Figure 8 A magnified structural diagram at point D in the diagram.

[0028] In the picture:

[0029] 1. Bolt; 101. External hex head; 102. Internal hex head; 103. Pan head; 104. External anti-loosening washer; 105. Internal anti-loosening washer; 106. Knurled pad; 107. Groove; 108. Screw; 2. Nut; 201. Hex nut; 202. Friction strip; 203. Recessed annular groove; 204. Diverter groove; 205. Spherical groove; 206. Connecting block; 207. Needle; 208. Colloid balloon; 3. Internal support mechanism; 301. Mounting ring; 302. Spring plate; 303. Spring; 304. Bottom support ring; 305. Arc strip; 4. Limiting mechanism; 401. Limiting strip; 402. Guide strip; 403. Limiting long groove; 404. Guide groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Refer to Figures 1-9The diagram illustrates the structure of an anti-loosening bolt and screw for automobiles, comprising a bolt 1, a nut 2 threadedly connected to the outer wall of the bolt 1, an inner support mechanism 3 on the inner side of the bolt 1, and a limit mechanism 4 on the outer wall of the bolt 1. The bolt 1 includes an external hexagonal head 101, a pan head 103 at the bottom of the external hexagonal head 101, and a screw 108 at the center of the bottom side of the pan head 103. The nut 2 includes a hexagonal nut 201, with an annular groove 203 on the surface of the hexagonal nut 201, and spherical grooves 205 evenly distributed clockwise along the top of the hexagonal nut 201. A needle 207 is provided at the bottom of the inner side of the spherical groove 205, and a gel ball 208 is provided inside the spherical groove 205. The external hexagonal head 101 and the screw 208 are connected to the bolt 101. The components are fixedly connected between 08. The pan head 103 is supported on the top. The hexagonal nut 201 has a concave annular groove 203 that communicates with the inner side of the spherical groove 205. A colloid ball 208 is provided inside the spherical groove 205. When the components are tightened during installation, the bottom surface of the outer hexagonal head 101 and the top surface of the hexagonal nut 201 rotate and press against the automotive parts. After being pressed to a certain extent, the needle 207 will rupture the colloid ball 208, causing the colloid inside to be squeezed out and guided through the concave annular groove 203 to flow on the surface of the hexagonal nut 201. This helps the hexagonal nut 201 to adhere to the automotive parts and form a tight connection with the outer hexagonal head 101, effectively preventing loosening.

[0032] The inner support mechanism 3 includes a mounting ring 301. The top of the mounting ring 301 is fixedly connected to the bottom of the pan head 103. Multiple spring plates 302 are symmetrically and evenly distributed on the bottom of the mounting ring 301. A spring 303 is provided on the inner side of the spring plate 302. A bottom support ring 304 is connected to the bottom of the spring plate 302. Multiple arc-shaped strips 305 are evenly distributed clockwise along the bottom of the bottom of the bottom support ring 304. The mounting ring 301 provides a distributed connection between the spring plate 302 and the bottom support ring 304. The bottom of the spring plate 302 and the bottom of the spring 303 are connected to the bottom support ring 304, and several arc-shaped strips 305 are distributed on the bottom of the bottom support ring 304. This facilitates the spring plate 302 and the spring 303 to generate a pushing force on the bottom support ring 304 during the tightening of the bolt, which further compresses the arc-shaped strips 305, thereby increasing the friction and the reverse force, and thus ensuring the stability of use.

[0033] like Figure 9 As shown, the limiting mechanism 4 includes a limiting strip 401. The side wall of the screw 108 is evenly provided with several limiting slots 403 in a clockwise direction along the circumference. A single limiting strip 401 is inserted and connected to the inner side of the limiting slot 403. After the bolt is tightened, the limiting strip 401 slides and connects to the inner side of the limiting slot 403, and passes through the inner side of the hexagonal nut 201. This helps to provide a limiting function at the corresponding position, effectively prevents the thread from turning back, thereby improving stability and avoiding loosening.

[0034] like Figure 1 and Figure 2 As shown, an internal hexagon head 102 is provided on the inner side of the external hexagon head 101. An external anti-loosening washer 104 and an internal anti-loosening washer 105 are provided at the bottom of the pan head 103. The external anti-loosening washer 104 is located on the outside of the internal anti-loosening washer 105. Several knurled washers 106 are evenly distributed in a clockwise direction at the bottom of the external anti-loosening washer 104 and the internal anti-loosening washer 105. The internal hexagon head 102 is located at the top of the external hexagon head 101 and can be used with a hex wrench for tightening, which improves the operating range. The external anti-loosening washer 104 and the internal anti-loosening washer 105 are both located at the bottom of the pan head 103, and multiple knurled washers 106 are distributed on the bottom surface. This helps to increase the friction when the knurled washers 106 come into contact with the automotive parts, thereby preventing the bolts from loosening after tightening.

[0035] like Figure 6 As shown, a groove 107 is provided between the outer anti-loosening pad 104 and the inner anti-loosening pad 105. The inner support mechanism 3 is movably installed on the inner side of the groove 107. The groove 107 can provide mounting holes, which facilitates the installation of the components of the inner support mechanism 3 on its inner side, thereby increasing the friction.

[0036] like Figure 4 and 5 As shown, a number of friction strips 202 are evenly distributed clockwise on the surface of the hexagonal nut 201. One end of each friction strip 202 is connected to a connecting block 206. The connecting blocks 206 are all connected to the inner side of the colloid balloon 208. The friction strips 202 are distributed on the surface of the hexagonal nut 201 and form protrusions, which helps to provide effective anti-slip when connected to parts and increase friction. The connecting blocks 206 facilitate the installation and connection of the colloid balloon 208.

[0037] like Figure 9 As shown, guide bars 402 are fixedly installed on both sides of the limiting bar 401, and guide grooves 404 are symmetrically opened on the inner side of the limiting groove 403. The guide grooves 404 are inserted and connected to the inner side of the guide bar 402. The guide bar 402 and the guide groove 404 are slidably connected, which helps to provide guidance, ensure accurate connection and limit, and provide further limit after the nut 2 is connected, effectively preventing loosening.

[0038] like Figure 4 As shown, the surface of the hexagonal nut 201 is evenly provided with several flow channels 204. The inner side of the flow channel 204 is connected to the inner side of the spherical groove 205 through the concave annular groove 203. The flow channel 204 provides space for the liquid adhesive to flow, so that the liquid adhesive is distributed along the flow channel 204, so that it can fully contact the parts and achieve a stable connection.

[0039] like Figure 4 As shown, a limiting slot is provided on the inner side wall of the hexagonal nut 201, and the limiting strip 401 is movably connected to the inner side of the limiting slot. The limiting slot facilitates the limiting function of the connection and ensures stability.

[0040] In this invention, the structure of the anti-loosening bolts and screws on the automobile is as follows: First, the outer hexagonal head 101 is fixedly connected to the screw 108. The pan head 103 is supported on top. Simultaneously, the hexagonal nut 201 has a recessed annular groove 203 that communicates with the inner side of a spherical groove 205. A gel ball 208 is provided inside the spherical groove 205. During installation and tightening, the bottom surface of the outer hexagonal head 101 and the top surface of the hexagonal nut 201 rotate and press against the automobile parts. After being pressed to a certain extent, the needle 207 ruptures the gel ball 208, causing the internal gel to be squeezed out and guided through the recessed annular groove 203 onto the surface of the hexagonal nut 201, thereby facilitating the loosening of the hexagonal head. The hexagonal nut 201 is bonded to the automotive part. Friction strips 202 are distributed on the surface of the hexagonal nut 201 and form protrusions, effectively preventing slippage and increasing friction during connection with the part. The flow channel 204 provides space for the liquid adhesive to flow, allowing it to distribute along the channel and fully contact the part, achieving a stable connection. The connecting block 206 facilitates the installation and connection of the gel ball 208, forming a tight connection with the external hexagonal head 101, effectively preventing loosening. The internal hexagonal head 102 is located on top of the external hexagonal head 101 and can be tightened with a hex wrench, increasing the range of operation. Both the outer anti-loosening washer 104 and the inner anti-loosening washer 105 are located at the bottom of the pan head 103, and multiple knurled pads 106 are distributed on the bottom surface of each. This increases friction when the knurled pads 106 contact the automotive parts, thus preventing loosening after the bolts are tightened. The groove 107 provides mounting holes, facilitating the installation of components of the inner support mechanism 3 inside, thereby increasing friction. The mounting ring 301 provides distributed connections to the spring plate 302 and the bottom support ring 304, and the bottom of the spring plate 302 is connected to the bottom of the spring 303 by the bottom support ring 304. Several arc-shaped strips 305 are distributed on the bottom of the bottom support ring 304, which helps to ensure that the spring plate 302 is properly secured during bolt tightening. The spring 303 exerts a thrust on the bottom support ring 304, causing the arc-shaped strip 305 to be further compressed, which helps to increase friction and reverse force, thereby ensuring stability in use. After the bolt is tightened, it is slidably connected to the inner side of the limiting groove 403 by the limiting strip 401 and passes through the inner side of the hexagonal nut 201, which helps to provide a limiting function at the corresponding position, effectively preventing the thread from turning back, thereby improving stability and avoiding loosening. The guide strip 402 is slidably connected to the guide groove 404, which helps to provide a guiding function, ensures accurate connection limiting, and provides further limiting after the nut 2 is connected, effectively preventing loosening.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A structure for an anti-loosening bolt and screw for automobiles, comprising a bolt (1), characterized in that: The bolt (1) is threaded with a nut (2) on its outer wall. The bolt (1) is provided with an inner support mechanism (3) on its inner side. The bolt (1) is provided with a limit mechanism (4) on its outer wall. The bolt (1) includes an external hexagonal head (101). The bottom of the external hexagonal head (101) is provided with a pan head (103). The bottom center of the pan head (103) is provided with a screw (108). The nut (2) includes a hexagonal nut (201). The surface of the hexagonal nut (201) is provided with a concave annular groove (203). The top of the hexagonal nut (201) is provided with a spherical groove (205) evenly distributed clockwise along the circle. The bottom of the inner side of the spherical groove (205) is provided with a needle (207). The inner side of the spherical groove (205) is provided with a gel balloon (208). The inner support mechanism (3) includes a mounting ring (301), the top of which is fixedly connected to the bottom of the pan head (103). A plurality of spring plates (302) are symmetrically and evenly distributed on the bottom of the mounting ring (301). A spring (303) is provided on the inner side of the spring plate (302). A bottom support ring (304) is connected to the bottom of the spring plate (302). A plurality of arc-shaped strips (305) are evenly distributed in a clockwise direction along the bottom of the bottom support ring (304).

2. The structure of the anti-loosening bolts and screws for automobiles according to claim 1, characterized in that: The limiting mechanism (4) includes a limiting strip (401). The side wall of the screw (108) is evenly provided with a plurality of limiting long grooves (403) in a clockwise direction along the circumferential direction. A single limiting strip (401) is inserted and connected to the inner side of the limiting long groove (403).

3. The structure of the anti-loosening bolts and screws for automobiles according to claim 1, characterized in that: The inner side of the external hexagon head (101) is provided with an internal hexagon head (102). The bottom of the pan head (103) is provided with an outer anti-loosening washer (104) and an inner anti-loosening washer (105). The outer anti-loosening washer (104) is located outside the inner anti-loosening washer (105). The bottom of the outer anti-loosening washer (104) and the inner anti-loosening washer (105) are evenly distributed with several knurled pads (106) in a clockwise direction.

4. The structure of the anti-loosening bolts and screws for automobiles according to claim 3, characterized in that: A groove (107) is provided between the outer anti-loosening pad (104) and the inner anti-loosening pad (105), and the inner support mechanism (3) is movably installed on the inner side of the groove (107).

5. The structure of the anti-loosening bolts and screws for automobiles according to claim 1, characterized in that: The surface of the hexagonal nut (201) is evenly distributed with several friction strips (202) in a clockwise direction. One end of each friction strip (202) is connected to a connecting block (206), and the connecting blocks (206) are all connected to the inside of the colloidal balloon (208).

6. The structure of the anti-loosening bolts and screws for automobiles according to claim 2, characterized in that: Guide bars (402) are fixedly installed on both sides of the limiting bar (401), and guide grooves (404) are symmetrically opened on the inner side of the limiting groove (403). The guide grooves (404) are inserted and connected to the inner side of the guide bar (402).

7. The structure of the anti-loosening bolts and screws for automobiles according to claim 1, characterized in that: The surface of the hexagonal nut (201) is evenly provided with a number of diversion grooves (204), and the inner side of the diversion groove (204) is connected to the inner side of the spherical groove (205) through the concave annular groove (203).

8. The structure of the anti-loosening bolts and screws for automobiles according to claim 2, characterized in that: The inner wall of the hexagonal nut (201) has a limiting groove, and the limiting strip (401) is movably connected to the inner side of the limiting groove.

Images