Anti-loosening bolt and screw structure on automobile

Abstract

The invention discloses an anti-loosening bolt and screw structure on an automobile, and relates to the technical field of automobile parts, the anti-loosening bolt and screw structure comprises a bolt, the outer wall of the bolt is in threaded connection with a nut, the inner side of the bolt is provided with an inner supporting mechanism, and the outer wall of the bolt is provided with a limiting mechanism. The outer hexagonal head is fixedly connected with the screw rod, the pan head is matched with the cushion support at the top, meanwhile, the concave ring groove is formed in the hexagonal nut and communicates with the inner side of the spherical groove, and the colloid balloon is arranged on the inner side of the spherical groove. The bottom face of the outer hexagon head and the top face of the hexagon nut are rotationally extruded on the automobile part, after extrusion is conducted to a certain degree, the colloid balloon can be broken through the pricking needle, internal colloid is extruded out and guided to circulate on the surface of the hexagon nut through the concave ring groove, and then the hexagon nut can be bonded to the automobile part conveniently; and tight connection is formed between the inner hexagonal head and the outer hexagonal head, so that the loosening condition is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, in particular to a structure of anti-loosening bolts and screws on an automobile. Background Art

[0002] In the process of automobile manufacturing and assembly, bolts and screws are commonly used connecting elements. In the automobile manufacturing industry, bolts and screws are one of the indispensable practical fasteners, mainly used to fasten the joints between the installed parts in the automobile manufacturing process, and play an absolutely important role in the automobile.

[0003] In the prior art, for example, the patent application number CN201721532422.9, "An anti-loosening bolt and screw structure for automobiles", includes: a hexagonal nut, a pawl, and a cross wedge groove; the hexagonal nut, the washer and the screw are cold-forged integrally formed structures; the pawl is arranged at the bottom of the washer, and the pawl and the washer are an integral structure; the cross wedge groove is arranged at the bottom of the screw, and the cross wedge groove and the screw are an integral structure; the wedge block is arranged inside the screw, and the wedge block and the screw are connected by embedding. Through structural improvements, it has the advantages of not being easy to deform and slip during screwing, the overall structure is reasonable to shorten the time required for production, the double anti-loosening protection ensures the firmness of screwing, and the process of combining and using accessories is omitted, thereby effectively solving the problems and shortcomings existing in the existing device.

[0004] Since cars experience various vibrations, shocks, temperature changes and other factors during driving, traditional bolts and screws are prone to loosening, which may lead to loose connections between car parts and affect the safety and reliability of the car. To address the above problems, a structure of anti-loosening bolts and screws on a car is proposed. Summary of the invention

[0005] The object of the present invention is to provide a structure of anti-loosening bolts and screws on an automobile, so as to solve the problem that during the operation of the prior art proposed in the above background technology, due to various vibrations, impacts and temperature changes experienced by the automobile during driving, traditional bolts and screws are prone to loosening, which may lead to loose connections of automobile parts and affect the safety and reliability of the automobile.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a structure of anti-loosening bolts and screws on a car, comprising a bolt, a nut is threadedly connected to the outer wall of the bolt, an inner support mechanism is arranged on the inner side of the bolt, a limiting mechanism is arranged on the outer wall of the bolt, the bolt comprises an external hexagonal head, a pan head is arranged at the bottom of the external hexagonal head, a screw rod is arranged at the middle part of the bottom side of the pan head, the nut comprises a hexagonal nut, a concave annular groove is arranged on the surface of the hexagonal nut, a spherical groove is evenly arranged on the top of the hexagonal nut along a circle clockwise, a puncture needle is arranged on the inner bottom of the spherical groove, and a screw rod is arranged on the inner side of the spherical groove. A colloid balloon is arranged, the outer hexagonal head is fixedly connected to the screw rod, the pan head cooperates with the cushion support at the top, and a concave ring groove is opened on the hexagonal nut, which is connected to the inner side of the spherical groove, and a colloid balloon is arranged on the inner side of the spherical groove. When installing and twisting, the bottom surface of the outer hexagonal head and the top surface of the hexagonal nut are rotated and squeezed on the automotive parts. After being squeezed to a certain extent, the colloid balloon will be squeezed by the needle, so that the internal colloid is squeezed out and guided to flow on the surface of the hexagonal nut through the concave ring groove, which is conducive to the bonding of the hexagonal nut to the automotive parts, forming a tight connection with the outer hexagonal head, and effectively preventing the loosening situation;

[0007] The inner support mechanism includes a mounting ring, the top of which is fixedly connected to the bottom of the pan head, a plurality of spring sheets are symmetrically and evenly distributed on the bottom of the mounting ring, a spring is arranged on the inner side of the spring sheet, the bottom of the spring sheet is connected to a bottom support ring, a plurality of arc strips are evenly distributed along a circle clockwise on the bottom of the bottom support ring, the mounting ring provides a distributed connection for the spring sheet and the bottom support ring, and the bottom of the spring sheet and the spring is connected to a bottom support ring, and a plurality of arc strips are distributed on the bottom of the bottom support ring, so that in the process of tightening the bolt, the spring sheet cooperates with the spring to generate a thrust on the bottom support ring, so that the arc strip is further squeezed, which is beneficial to increase the friction and reverse force, thereby ensuring the stability of use.

[0008] Preferably, the limiting mechanism includes a limiting bar, and the side wall of the screw is evenly provided with a plurality of limiting long grooves in a clockwise direction along the circumferential direction. A single limiting bar is inserted and connected to the inner side of the limiting long groove, and is slidably connected to the inner side of the limiting long groove through the limiting bar, and passes through the inner side of the hexagonal nut, thereby facilitating providing a limiting effect at the corresponding position, effectively preventing the thread mouth from rotating, thereby improving stability and avoiding loosening.

[0009] Preferably, an inner hexagonal head is provided on the inner side of the outer hexagonal head, and an outer anti-loosening washer and an inner anti-loosening washer are provided at the bottom of the pan head, and the outer anti-loosening washer is provided on the outer side of the inner anti-loosening washer, and a number of knurled pads are evenly distributed on the bottom of the outer anti-loosening washer and the inner anti-loosening washer in a clockwise direction, and the inner hexagonal head is provided at the top of the outer hexagonal head and can be turned with a hexagonal wrench, thereby improving the range of operation, and the outer anti-loosening washer and the inner anti-loosening washer are both provided at the bottom of the pan head, and a plurality of knurled pads are distributed on the bottom surface, which is beneficial to increase the friction when the knurled pads contact with automobile parts, thereby preventing the bolts from loosening after being tightened.

[0010] Preferably, a groove is provided between the outer anti-loosening washer and the inner anti-loosening washer, and the inner support mechanism is movably mounted on the inner side of the groove. The groove can provide a mounting hole, which facilitates the installation of components of the inner support mechanism on the inner side thereof, thereby providing an effect of increasing friction.

[0011] Preferably, a plurality of friction strips are evenly distributed clockwise on the surface of the hexagonal nut, one end of the friction strip is connected to a connecting block, and the connecting blocks are 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 is beneficial for providing effective anti-slip when connecting with parts and increasing friction. The connecting block facilitates the installation connection of the colloid balloon.

[0012] Preferably, guide strips are fixedly installed on both sides of the limit strip, and guide grooves are symmetrically opened on the inner side of the limit long groove. The guide grooves are plugged and connected to the inner side of the guide strip, and the guide strip and the guide groove are slidingly connected, which is beneficial to provide a guiding function, ensure accurate connection limit, and provide further limit for the nut after connection, effectively preventing loosening.

[0013] Preferably, a plurality of diverter grooves are evenly provided on the surface of the hexagonal nut, and the inner side of the diverter groove is connected with the inner side of the spherical groove through a concave annular groove. The diverter groove provides space for the liquid glue to flow, so that the liquid glue is distributed along the diverter groove, so that it can fully contact the components and achieve a stable connection.

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

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the outer hexagonal head is fixedly connected to the screw rod, the pan head is supported at the top, and a concave annular groove is provided on the hexagonal nut, which is communicated with the inner side of the spherical groove, and a colloid balloon is provided on the inner side of the spherical groove. When the outer hexagonal head is installed and screwed, the bottom surface of the outer hexagonal head and the top surface of the hexagonal nut are rotated and squeezed on the automotive parts. After being squeezed to a certain extent, the colloid balloon is squeezed by a needle, so that the internal colloid is squeezed out and guided to flow on the surface of the hexagonal nut through the concave annular groove, which is conducive to the hexagonal nut being bonded to the automotive parts and forming a tight connection with the outer hexagonal head, effectively preventing the loosening.

[0017] 2. In the present invention, a distributed connection is provided between the spring sheet and the bottom support ring through the mounting ring, and the bottom of the spring sheet and the spring is connected with the bottom support ring, and a plurality of arc strips are distributed at the bottom of the bottom support ring, so that in the process of tightening the bolt, the spring sheet cooperates with the spring to generate thrust on the bottom support ring, so that the arc strip is further squeezed, which is beneficial to increase friction and reverse force, thereby ensuring stability in use.

[0018] 3. In the present invention, the limit bar is slidably connected to the inner side of the limit long groove and passes through the inner side of the hexagonal nut, which is beneficial to provide a limiting function at the corresponding position and effectively prevent the thread from rotating, thereby improving stability and avoiding loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the structure of an anti-loosening bolt and screw on a car according to the present invention;

[0020] Figure 2 It is a schematic structural diagram of another angle of the structure of an anti-loosening bolt and a screw on a car of the present invention;

[0021] Figure 3 For the present invention Figure 2 A is an enlarged structural diagram;

[0022] Figure 4 This is a schematic structural diagram of a nut portion of a structure of an anti-loosening bolt and screw on a vehicle according to the present invention;

[0023] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in FIG.

[0024] Figure 6 It is a partially exploded structural schematic diagram of a structure of an anti-loosening bolt and a screw on a car according to the present invention;

[0025] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in FIG.

[0026] Figure 8 It is a partial exploded structural schematic diagram of the structure of an anti-loosening bolt and screw on a car according to the present invention;

[0027] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at D in the figure.

[0028] In the figure:

[0029] 1. Bolt; 101. External hexagonal head; 102. Internal hexagonal head; 103. Pan head; 104. External anti-loosening washer; 105. Internal anti-loosening washer; 106. Knurled pad; 107. Groove; 108. Screw; 2. Nut; 201. Hexagonal nut; 202. Friction strip; 203. Concave ring groove; 204. Diverter groove; 205. Spherical groove; 206. Connecting block; 207. Needle; 208. Colloidal balloon; 3. Internal support mechanism; 301. Mounting ring; 302. Spring sheet; 303. Spring; 304. Bottom support ring; 305. Arc strip; 4. Limit mechanism; 401. Limit strip; 402. Guide strip; 403. Limit long groove; 404. Guide groove. DETAILED DESCRIPTION

[0030] 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 implementation regulations 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 creative work are within the scope of protection of the present invention.

[0031] Example 1: Reference Figure 1-Figure 9As shown: a structure of an anti-loosening bolt and screw on a car, comprising a bolt 1, a nut 2 is threadedly connected to the outer wall of the bolt 1, an inner support mechanism 3 is arranged on the inner side of the bolt 1, a limiting mechanism 4 is arranged on the outer wall of the bolt 1, the bolt 1 comprises an outer hexagonal head 101, a pan head 103 is arranged at the bottom of the outer hexagonal head 101, a screw 108 is arranged at the middle of the bottom side of the pan head 103, the nut 2 comprises a hexagonal nut 201, a concave annular groove 203 is opened on the surface of the hexagonal nut 201, a spherical groove 205 is evenly opened along the circle clockwise on the top of the hexagonal nut 201, a puncture needle 207 is arranged on the inner bottom of the spherical groove 205, a colloid balloon 208 is arranged on the inner side of the spherical groove 205, the outer hexagonal head 101 and the screw 1 08 are fixedly connected, the pan head 103 cooperates with the pad support at the top, and the hexagonal nut 201 is provided with a concave annular groove 203, which is communicated with the inner side of the spherical groove 205, and a colloid balloon 208 is arranged on the inner side of the spherical groove 205. When installing and twisting, the bottom surface of the outer hexagonal head 101 and the top surface of the hexagonal nut 201 are rotated and squeezed on the automotive parts. After being squeezed to a certain extent, the needle 207 will squeeze the colloid balloon 208, so that the internal colloid is squeezed out and guided to flow on the surface of the hexagonal nut 201 through the concave annular groove 203, which is conducive to the bonding of the hexagonal nut 201 to the automotive parts, forming a tight connection between the outer hexagonal head 101, and effectively preventing the situation of loosening;

[0032] 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 sheets 302 are symmetrically and evenly distributed on the bottom of the mounting ring 301, a spring 303 is arranged on the inner side of the spring sheet 302, a bottom support ring 304 is connected to the bottom of the spring sheet 302, a plurality of arc strips 305 are evenly distributed along a circle clockwise on the bottom of the bottom support ring 304, the mounting ring 301 provides a distributed connection for the spring sheet 302 and the bottom support ring 304, and the bottom of the spring sheet 302 and the spring 303 are connected to the bottom support ring 304, and a plurality of arc strips 305 are distributed on the bottom of the bottom support ring 304, so that in the process of tightening the bolt, the spring sheet 302 cooperates with the spring 303 to generate a thrust on the bottom support ring 304, so that the arc strip 305 is further squeezed, which is conducive to increasing friction and reverse force, thereby ensuring stability in use.

[0033] like Fig. 9 As shown, the limiting mechanism 4 includes a limiting strip 401, and the side wall of the screw rod 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. When the bolt is tightened, the limiting strip 401 is slidably connected to the inner side of the limiting long groove 403 and passes through the inner side of the hexagonal nut 201, thereby facilitating a limiting effect at the corresponding position, effectively preventing the thread from rotating, thereby improving stability and avoiding loosening.

[0034] like Figure 1 and Figure 2 As shown, an inner hexagonal head 102 is provided on the inner side of the outer hexagonal head 101, and an outer anti-loosening washer 104 and an inner anti-loosening washer 105 are provided at the bottom of the pan head 103. The outer anti-loosening washer 104 is provided on the outer side of the inner anti-loosening washer 105, and a plurality of knurled pads 106 are evenly distributed on the bottom of the outer anti-loosening washer 104 and the inner anti-loosening washer 105 in a clockwise direction. The inner hexagonal head 102 is provided on the top of the outer hexagonal head 101 and can be screwed with a hexagonal wrench, thereby improving the range of operation. The outer anti-loosening washer 104 and the inner anti-loosening washer 105 are both provided at the bottom of the pan head 103, and a plurality of knurled pads 106 are distributed on the bottom surface, which is beneficial to increase the friction when the knurled pads 106 contact with automobile parts, thereby preventing the bolts from loosening after being tightened.

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

[0036] like Figure 4 and 5 As shown, a plurality of friction strips 202 are evenly distributed in a clockwise direction on the surface of the hexagonal nut 201, and a connecting block 206 is connected to one end of the friction strip 202. The connecting blocks 206 are 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 is beneficial for providing effective anti-slip when connecting with parts and components, and increasing friction. The connecting block 206 facilitates the installation connection of the colloid balloon 208.

[0037] like Fig. 9 As shown, guide strips 402 are fixedly installed on both sides of the limit strip 401, and guide grooves 404 are symmetrically opened on the inner side of the limit long groove 403. The guide grooves 404 are inserted and connected to the inner side of the guide strip 402. The guide strip 402 and the guide grooves 404 are slidingly connected, which is beneficial to provide a guiding function, ensure accurate connection limit, and provide further limit for the nut 2 after connection, effectively preventing loosening.

[0038] like Figure 4 As shown, a plurality of diverter grooves 204 are evenly provided on the surface of the hexagonal nut 201. The inner side of the diverter groove 204 is connected with the inner side of the spherical groove 205 through the concave annular groove 203. The diverter groove 204 provides a flow space for the liquid glue, so that the liquid glue is distributed along the diverter groove 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 the present invention, when the structure of the anti-loosening bolt and screw on the automobile is used, first, the outer hexagonal head 101 and the screw rod 108 are fixedly connected, the pan head 103 cooperates with the pad support at the top, and at the same time, a concave ring groove 203 is opened on the hexagonal nut 201, and is communicated with the inner side of the spherical groove 205, and a colloid balloon 208 is arranged on the inner side of the spherical groove 205. When the hexagonal head 101 and the top surface of the hexagonal nut 201 are rotated and squeezed on the automobile parts during installation and screwing, and after being squeezed to a certain extent, the needle 207 will squeeze the colloid balloon 208, so that the internal colloid is squeezed out and guided to flow on the surface of the hexagonal nut 201 through the concave ring groove 203, which is conducive to the hexagonal nut 201. The hexagonal nut 201 is bonded to the automotive parts, and the friction strips 202 are distributed on the surface of the hexagonal nut 201 and form protrusions, which is beneficial to provide effective anti-slip when connected to the parts and increase the friction. The diverter groove 204 provides a space for the liquid glue to flow, so that the liquid glue is distributed along the diverter groove 204, so that it can fully contact the parts and achieve a stable connection. The connection block 206 facilitates the installation and connection of the colloid balloon 208, and forms a tight connection with the outer hexagonal head 101, effectively preventing the situation of looseness. The inner hexagonal head 102 is arranged on the top of the outer hexagonal head 101, and can be screwed with a hexagonal wrench, which improves the range of operation. The outer anti-loosening washer 104 and the inner anti-loosening washer 105 are both arranged at the bottom of the pan head 103, and a plurality of knurled pads 106 are distributed on the bottom surface, which is beneficial to increase the friction when the knurled pads 106 contact with the automobile parts, thereby preventing the bolts from loosening after being tightened. The groove 107 can provide a mounting hole, which is convenient for installing the components of the inner support mechanism 3 on the inner side thereof, providing an effect of increasing friction. The mounting ring 301 provides a distributed connection for the spring sheet 302 and the bottom support ring 304, and the spring sheet 302 is connected to the bottom of the spring 303 with a bottom support ring 304, and a plurality of arc strips 305 are distributed on the bottom of the bottom support ring 304, which is beneficial to the spring sheet 302 being arranged in the process of tightening the bolt. The closing spring 303 generates a thrust on the bottom support ring 304, which further squeezes the arc strip 305, which is beneficial to increase the friction and reverse force, thereby ensuring the stability of use. When the bolt is tightened, the limit strip 401 is slidably connected to the inner side of the limit long groove 403 and passes through the inner side of the hexagonal nut 201, which is beneficial to provide a limiting effect at the corresponding position, effectively preventing the thread from rotating, thereby improving stability and avoiding loosening. The sliding connection between the guide strip 402 and the guide groove 404 is beneficial to provide a guiding effect, ensuring accurate connection limit, and providing further limit for the nut 2 after connection, effectively preventing loosening.

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

Claims

1. A structure of anti-loosening bolts and screws on a car, comprising a bolt (1), characterized in that: The outer wall of the bolt (1) is threadedly connected with a nut (2), the inner side of the bolt (1) is provided with an inner support mechanism (3), the outer wall of the bolt (1) is provided with a limit mechanism (4), the bolt (1) comprises an external hexagonal head (101), the bottom of the external hexagonal head (101) is provided with a pan head (103), the middle part of the bottom side of the pan head (103) is provided with a screw rod (108), the nut (2) comprises 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 evenly provided with a spherical groove (205) along a circle clockwise, the inner bottom of the spherical groove (205) is provided with a puncture needle (207), and the inner side of the spherical groove (205) is provided with a colloid balloon (208); The inner support mechanism (3) comprises a mounting ring (301), the top of the mounting ring (301) is fixedly connected to the bottom of the pan head (103), a plurality of spring sheets (302) are symmetrically and evenly distributed on the bottom of the mounting ring (301), a spring (303) is arranged on the inner side of the spring sheet (302), the bottom of the spring sheet (302) is connected to a bottom support ring (304), and a plurality of arc strips (305) are evenly distributed along a circle clockwise on the bottom of the bottom support ring (304).

2. The anti-loosening bolt and screw structure for a vehicle according to claim 1, characterized in that: The limiting mechanism (4) comprises a limiting strip (401), and a plurality of limiting long grooves (403) are evenly opened in a clockwise direction along the circumferential direction on the side wall of the screw rod (108), and a single limiting strip (401) is inserted and connected to the inner side of the limiting long groove (403).

3. The anti-loosening bolt and screw structure for a vehicle according to claim 1, characterized in that: An inner hexagonal head (102) is provided on the inner side of the outer hexagonal head (101); an outer anti-loosening washer (104) and an inner anti-loosening washer (105) are provided on the bottom of the pan head (103); the outer anti-loosening washer (104) is provided on the outer side of the inner anti-loosening washer (105); and a plurality of knurled pads (106) are evenly distributed on the bottom of the outer anti-loosening washer (104) and the inner anti-loosening washer (105) in a clockwise direction.

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

5. The anti-loosening bolt and screw structure for automobiles according to claim 1, characterized in that: A plurality 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 connection block (206), and each connection block (206) is connected to the inner side of the colloid balloon (208).

6. The anti-loosening bolt and screw structure for automobiles according to claim 2, characterized in that: Guide strips (402) are fixedly mounted on both sides of the limiting strip (401), and guide grooves (404) are symmetrically provided on the inner side of the limiting long groove (403), and the guide grooves (404) are plug-connected to the inner side of the guide strip (402).

7. The anti-loosening bolt and screw structure for automobiles according to claim 1, characterized in that: A plurality of diversion grooves (204) are evenly formed on the surface of the hexagonal nut (201), and the inner side of the diversion groove (204) is connected to the inner side of the spherical groove (205) via the concave annular groove (203).

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

Images