Lock screw for new energy automobile

Abstract

The utility model discloses an anti-loose screw for a new energy automobile, which relates to the technical field of screws and comprises a screw assembly, a first gasket assembly, a nut assembly and a second gasket assembly are movably sleeved on the screw assembly, the first gasket assembly is positioned at the top of the second gasket assembly, and the nut assembly is positioned at the bottom of the second gasket assembly. Through the arrangement of a plurality of first inclined sawteeth arranged on the first annular plate and a plurality of second inclined sawteeth arranged on the first annular gasket, and through the arrangement of a plurality of first helical racks at the bottom end of the first annular plate and a plurality of second helical racks at the top end of the first annular gasket, the first inclined sawteeth and the second inclined sawteeth can be fixed after the screw is screwed; due to the fact that the inclination direction of a plurality of second inclined sawteeth is opposite to that of a plurality of first inclined sawteeth, and the inclination direction of a plurality of second helical racks is opposite to that of a plurality of first helical racks, the first annular plate can only rotate in the screwing direction, the first annular plate is locked after rotating in the reverse direction, and the situation that the screw rotates in the reverse direction, and consequently the screw is loosened is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, and in particular to an anti-loosening screw for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] The existing new energy vehicle screw anti-loosening effect is poor. Due to long-term driving and bumps of the car, the car screws loosen and fall off. Due to the lack of anti-loosening measures, the car screws are very easy to loosen and fall off, which can easily lead to safety accidents.

[0004] Therefore, it is necessary to invent a new energy vehicle anti-loosening screw to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-loosening screw for new energy vehicles to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a locking screw for a new energy vehicle, comprising a screw assembly, wherein a first washer assembly, a nut assembly, and a second washer assembly are movably sleeved on the screw assembly, wherein the first washer assembly is located on top of the second washer assembly, and the nut assembly is located at the bottom of the second washer assembly;

[0007] The screw assembly includes a head, and a first annular plate is integrally formed at the bottom end of the head;

[0008] The first gasket assembly includes a first annular gasket, and a top end of the first annular gasket is integrally provided with an annular extension plate;

[0009] The nut assembly includes a nut body, and a second annular plate is integrally formed on the top end of the nut body;

[0010] The second gasket assembly includes a second annular gasket adapted to fit the second annular plate.

[0011] Preferably, a limiting groove is provided around the bottom end of the outer side wall of the first annular plate, and a plurality of first oblique saw teeth distributed in an annular array are integrally formed on the top end of the outer side wall of the first annular plate.

[0012] Preferably, a plurality of first bevel racks distributed in a circular array are integrally formed at the bottom end of the first annular plate, and a stud is integrally formed at the middle part of the bottom end of the first annular plate. Limiting grooves are provided on both sides of the stud, and the bottom ends of the limiting grooves extend to the lower surface of the stud.

[0013] Preferably, the top end of the inner side wall of the annular extension plate is integrally formed with a plurality of second oblique serrations distributed in an annular array, and the plurality of second oblique serrations are adapted to the plurality of first oblique serrations, the inclination direction of the second oblique serrations is opposite to the inclination direction of the first oblique serrations, and the bottom end of the first annular gasket is fixed with a plurality of damping strips distributed in an annular array.

[0014] Preferably, a limiting ring adapted to the limiting groove is integrally formed around the middle of the inner side wall of the annular extension plate, and a plurality of second bevel racks distributed in a ring array are integrally formed at the middle of the top end of the first annular gasket, and the second bevel racks are adapted to the first bevel racks, and the inclination direction of the second bevel racks is opposite to the inclination direction of the first bevel racks.

[0015] Preferably, the top end of the second annular plate is integrally formed with a plurality of third bevel racks distributed in a circular array, and the bottom end of the second annular gasket is integrally formed with a plurality of fourth bevel racks distributed in a circular array, and the fourth bevel racks are adapted to the third bevel racks.

[0016] Preferably, the inclination direction of the fourth bevel rack is opposite to the inclination direction of the third bevel rack, and both side inner walls of the second annular gasket are integrally formed with limiting protrusions that are compatible with the limiting sliding grooves.

[0017] The technical effects and advantages of this utility model are:

[0018] The utility model provides a plurality of first oblique serrations provided on the first annular plate and a plurality of second oblique serrations on the first annular gasket, and a plurality of first oblique racks at the bottom end of the first annular plate and a plurality of second oblique racks at the top end of the first annular gasket. After the screw is tightened, the plurality of second oblique serrations are opposite to the inclination directions of the plurality of first oblique serrations, and the plurality of second oblique racks are opposite to the inclination directions of the plurality of first oblique racks, and the first annular plate can only be rotated in the tightening direction, and the reverse rotation is locked, effectively preventing the screw from rotating in the reverse direction and causing the screw to loosen. At the same time, the setting of the limiting sliding groove can limit the second gasket assembly to prevent the second gasket assembly from rotating. At the same time, due to the setting of the plurality of fourth oblique racks and the third oblique racks, after the nut assembly is tightened, the plurality of second annular plates and the plurality of fourth oblique racks are inclined in opposite directions, locking the direction of the loose rotation of the nut body, making the nut assembly not easy to loosen, thereby greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the screw assembly structure of the present utility model.

[0021] Figure 3 This is a schematic diagram of the bottom structure of the screw assembly of the present invention.

[0022] Figure 4 This is a schematic structural diagram of the first gasket assembly of the present utility model.

[0023] Figure 5 This is a schematic diagram of the bottom structure of the first gasket assembly of the present utility model.

[0024] Figure 6 It is a structural schematic diagram of the second gasket assembly and the nut assembly of the utility model.

[0025] In the figure: 1. screw assembly; 2. first gasket assembly; 3. nut assembly; 4. second gasket assembly; 101. head; 102. first annular plate; 103. first oblique rack; 104. first oblique serration; 105. limiting groove; 106. stud; 107. limiting slide groove; 201. first annular gasket; 202. annular extension plate; 203. second oblique serration; 204. limiting ring; 205. second oblique rack; 206. damping strip; 301. nut body; 302. second annular plate; 303. third oblique rack; 401. second annular gasket; 402. limiting protrusion; 403. fourth oblique rack. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model provides Figure 1-6 The anti-loosening screw for new energy vehicles shown includes a screw assembly 1, on which a first gasket assembly 2, a nut assembly 3 and a second gasket assembly 4 are movably sleeved, and the first gasket assembly 2 is located on the top of the second gasket assembly 4, and the nut assembly 3 is located at the bottom of the second gasket assembly 4.

[0028] Furthermore, the screw assembly 1 includes a head 101, and a first annular plate 102 is integrally formed at the bottom end of the head 101. A limiting groove 105 is arranged around the bottom end of the outer wall of the first annular plate 102, and a plurality of first oblique serrations 104 distributed in an annular array are integrally formed at the top end of the outer wall of the first annular plate 102. A plurality of first oblique racks 103 distributed in an annular array are integrally formed at the bottom end of the first annular plate 102, and a stud 106 is integrally formed in the middle part of the bottom end of the first annular plate 102. Limiting grooves 107 are arranged on both sides of the stud 106, and the bottom end of the limiting groove 107 extends to the lower surface of the stud 106.

[0029] The first gasket assembly 2 includes a first annular gasket 201, and the top of the first annular gasket 201 is integrally provided with an annular extension plate 202, and the top of the inner wall of the annular extension plate 202 is integrally provided with a plurality of second oblique serrations 203 distributed in an annular array, and the plurality of second oblique serrations 203 are adapted to the plurality of first oblique serrations 104, and the inclination direction of the second oblique serrations 203 is opposite to the inclination direction of the first oblique serrations 104, and the bottom end of the first annular gasket 201 is fixedly provided with a plurality of damping strips 206 distributed in an annular array, and the setting of the damping strips 206 can increase the friction between the first annular gasket 201 and the mounting surface to prevent the first annular gasket 201 from rotating and causing the screw to loosen, and the middle part of the inner side wall of the annular extension plate 202 is integrally provided with a limiting ring 204 adapted to the limiting groove 105, and the middle part of the top of the first annular gasket 201 is integrally provided with multiple The second bevel racks 205 are distributed in a circular array, and the second bevel racks 205 are adapted to the first bevel racks 103. The inclination direction of the second bevel racks 205 is opposite to the inclination direction of the first bevel racks 103. By setting the multiple first bevel serrations 104 on the first annular plate 102 and the multiple second bevel serrations 203 on the first annular gasket 201, and by setting the multiple first bevel racks 103 at the bottom end of the first annular plate 102 and the multiple second bevel racks 205 at the top end of the first annular gasket 201, after the screws are tightened, since the inclination directions of the multiple second bevel serrations 203 are opposite to the multiple first bevel serrations 104, and the inclination directions of the multiple second bevel racks 205 are opposite to the multiple first bevel racks 103, the first annular plate 102 can only rotate in the tightening direction, and the reverse rotation is locked, which effectively prevents the screws from rotating in the opposite direction and causing the screws to loosen.

[0030] The nut assembly 3 includes a nut body 301 , a second annular plate 302 is integrally formed at the top of the nut body 301 , and a plurality of third oblique racks 303 distributed in an annular array are integrally formed at the top of the second annular plate 302 .

[0031] The second gasket assembly 4 includes a second annular gasket 401, which is adapted to the second annular plate 302. The bottom end of the second annular gasket 401 is integrally formed with a plurality of fourth oblique racks 403 distributed in an annular array, and the fourth oblique racks 403 are adapted to the third oblique racks 303. The inclination direction of the fourth oblique racks 403 is opposite to the inclination direction of the third oblique racks 303. The inner walls on both sides of the second annular gasket 401 are integrally formed with limiting protrusions 402 that are adapted to the limiting slide grooves 107. Through the setting of the limiting slide grooves 107, the second gasket assembly 4 can be limited to prevent the second gasket assembly 4 from rotating. At the same time, due to the setting of the plurality of fourth oblique racks 403 and the third oblique racks 303, after the nut assembly 3 is tightened, the plurality of second annular plates 302 and the plurality of fourth oblique racks 403 are inclined in opposite directions, locking the loose rotation direction of the nut body 301, making the nut assembly 3 not easy to loosen, thereby greatly improving safety.

[0032] The bevel angles of the first bevel rack 103, the first bevel saw tooth 104, the second bevel saw tooth 203, the second bevel rack 205, the third bevel rack 303 and the fourth bevel rack 403 are between 5° and 10°. If they are too small, the reverse locking effect cannot be achieved. If they are too large, the screws will be difficult to tighten, and the first bevel rack 103, the first bevel saw tooth 104, the second bevel saw tooth 203, the second bevel rack 205, the third bevel rack 303 and the fourth bevel rack 403 will be excessively worn.

[0033] Working principle of this utility model:

[0034] During use, after the screw is tightened, since the inclination directions of the multiple second bevel saw teeth 203 are opposite to the inclination directions of the multiple first bevel saw teeth 104, and the inclination directions of the multiple second bevel racks 205 are opposite to the inclination directions of the multiple first bevel racks 103, the first annular plate 102 can only rotate in the tightening direction, and the reverse rotation is locked, effectively preventing the screw from rotating in the opposite direction and causing the screw to loosen. At the same time, through the setting of the limiting slide groove 107, the second gasket assembly 4 can be limited to prevent the second gasket assembly 4 from rotating. At the same time, due to the setting of the multiple fourth bevel racks 403 and the third bevel rack 303, after the nut assembly 3 is tightened, the multiple second annular plates 302 and the multiple fourth bevel racks 403 are inclined in opposite directions, locking the loosening rotation direction of the nut body 301, so that the nut assembly 3 is not easy to loosen.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A locking screw for new energy vehicles, characterized by: The invention comprises a screw assembly (1), wherein a first washer assembly (2), a nut assembly (3) and a second washer assembly (4) are movably sleeved on the screw assembly (1), wherein the first washer assembly (2) is located on the top of the second washer assembly (4), and the nut assembly (3) is located on the bottom of the second washer assembly (4); The screw assembly (1) comprises a head (101), and a first annular plate (102) is integrally formed at the bottom end of the head (101); The first gasket assembly (2) comprises a first annular gasket (201), and a top end of the first annular gasket (201) is integrally provided with an annular extension plate (202); The nut assembly (3) comprises a nut body (301), and a second annular plate (302) is integrally formed at the top end of the nut body (301); The second gasket assembly (4) comprises a second annular gasket (401), and the second annular gasket (401) is adapted to the second annular plate (302).

2. The anti-loosening screw for new energy vehicles according to claim 1, characterized in that: A limiting groove (105) is provided around the bottom end of the outer wall of the first annular plate (102), and a plurality of first oblique saw teeth (104) distributed in an annular array are integrally formed on the top end of the outer wall of the first annular plate (102).

3. The anti-loosening screw for new energy vehicles according to claim 2, characterized in that: The bottom end of the first annular plate (102) is integrally formed with a plurality of first oblique racks (103) distributed in an annular array, and the middle part of the bottom end of the first annular plate (102) is integrally formed with a stud (106), and limiting grooves (107) are provided on both sides of the stud (106), and the bottom end of the limiting groove (107) extends to the lower surface of the stud (106).

4. The anti-loosening screw for new energy vehicles according to claim 3, characterized in that: The top end of the inner side wall of the annular extension plate (202) is integrally formed with a plurality of second oblique saw teeth (203) distributed in an annular array, and the plurality of second oblique saw teeth (203) are adapted to the plurality of first oblique saw teeth (104), and the inclination direction of the second oblique saw teeth (203) is opposite to the inclination direction of the first oblique saw teeth (104), and the bottom end of the first annular gasket (201) is fixedly provided with a plurality of damping strips (206) distributed in an annular array.

5. The anti-loosening screw for new energy vehicles according to claim 4, characterized in that: A limiting ring (204) adapted to the limiting groove (105) is integrally formed around the middle of the inner side wall of the annular extension plate (202); a plurality of second oblique racks (205) distributed in an annular array are integrally formed at the middle of the top end of the first annular gasket (201); the second oblique racks (205) are adapted to the first oblique racks (103); and the inclination direction of the second oblique racks (205) is opposite to the inclination direction of the first oblique racks (103).

6. The anti-loosening screw for new energy vehicles according to claim 5, characterized in that: The top end of the second annular plate (302) is integrally formed with a plurality of third oblique racks (303) distributed in an annular array, and the bottom end of the second annular gasket (401) is integrally formed with a plurality of fourth oblique racks (403) distributed in an annular array, and the fourth oblique racks (403) are adapted to the third oblique racks (303).

7. The anti-loosening screw for new energy vehicles according to claim 6, characterized in that: The inclination direction of the fourth bevel rack (403) is opposite to that of the third bevel rack (303), and both inner walls of the second annular gasket (401) are integrally formed with limiting protrusions (402) that are compatible with the limiting sliding groove (107).

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