New energy automobile bolt fastener

Abstract

The utility model belongs to the technical field of bolts, particularly relates to a new energy automobile bolt fastener, and provides the following scheme aiming at the problems that a new energy automobile can bear large vibration, impact and torque force in the driving process, the anti-skid performance of a conventional bolt fastener cannot meet the requirement, and the looseness phenomenon possibly occurs. Comprising a bolt body, a hexagonal nut used in a matched mode is connected to a screw rod of the bolt body in a threaded mode, an inner hexagonal groove facilitating screwing of various tools is formed in the center of a hexagonal bolt head at the top of the bolt body, and a hexagonal dustproof piece is arranged in the inner hexagonal groove in a sliding mode. When the anti-skidding bolt fastener is used, friction force between the bolt fastener and a contact surface is increased by arranging the occlusion type anti-skidding assembly, the loosening phenomenon is effectively prevented, and the fastening effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to a bolt fastener for new energy vehicles. Background Technology

[0002] Bolts and fasteners are indispensable components in the manufacturing and assembly of new energy vehicles. They are used to connect and secure various parts, ensuring the structural integrity, safety, and performance reliability of the vehicle. New energy vehicles experience significant vibration, impact, and torque forces during operation, and the anti-slip properties of conventional bolts and fasteners are insufficient, potentially leading to loosening.

[0003] To address the aforementioned issues, this utility model document proposes a bolt fastener for new energy vehicles. Utility Model Content

[0004] This utility model provides a bolt fastener for new energy vehicles, which solves the shortcomings of existing technologies where conventional bolt fasteners cannot meet the requirements of anti-slip performance due to the large vibration, impact and torque forces that new energy vehicles will experience during operation, and may easily loosen.

[0005] This utility model provides the following technical solution:

[0006] A bolt fastener for new energy vehicles, comprising:

[0007] The bolt body has a threaded connection to a matching hexagonal nut on its shank. The center of the hexagonal bolt head at the top of the bolt body has an internal hexagonal groove for easy tightening with various tools. A hexagonal dustproof plate is slidably disposed in the internal hexagonal groove.

[0008] Two sets of interlocking anti-slip components are placed between the hexagonal bolt head and the hexagonal nut to increase the friction between the hexagonal bolt head, the hexagonal nut and the corresponding contact surfaces, respectively.

[0009] In one possible design, both sets of the interlocking anti-slip components are fitted onto the threaded rod of the bolt body. The interlocking anti-slip components include two annular anti-slip pads arranged vertically opposite each other. On the opposite surfaces of the two annular anti-slip pads, a plurality of trapezoidal interlocking protrusions for interlocking and fixing the two are arranged in a ring array.

[0010] In one possible design, the other side of both of the annular anti-slip pads is provided with multiple anti-slip twills arranged in a circular array.

[0011] In one possible design, a reset spring is fixedly installed at the bottom of the hexagonal dustproof sheet, and the other end of the reset spring is fixedly connected to the bottom of the inner wall of the hexagonal groove.

[0012] In one possible design, two limiting sliders are symmetrically fixed on the side wall of the hexagonal dustproof sheet to prevent it from disengaging from the internal hexagonal groove, and the side wall of the internal hexagonal groove is provided with a limiting groove for sliding connection of the corresponding limiting slider.

[0013] In one possible design, both the bolt body and the hexagonal nut are uniformly covered with an epoxy paint coating to improve corrosion resistance.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0015] The working principle and usage process of this technical solution are as follows:

[0016] Bolt and nut connection: The bolt body's threaded portion is connected to the hexagonal nut via threads. This is the basic connection method for bolt fasteners. During assembly, the hexagonal nut is rotated to move along the threaded portion of the bolt body until the required tightness is achieved.

[0017] The function of the interlocking anti-slip components: In order to improve the friction between the bolt fastener and the contact surface and prevent loosening, this bolt fastener is equipped with two sets of interlocking anti-slip components between the hexagonal bolt head and the hexagonal nut. These components consist of two vertically opposite annular anti-slip pads, each with trapezoidal interlocking protrusions on its opposite surface. When the hexagonal nut is tightened, the two annular anti-slip pads will approach and interlock with each other, and the trapezoidal interlocking protrusions will engage with each other, thereby increasing friction and improving the fastening effect.

[0018] Use of the hexagonal dustproof plate: To prevent dust and other impurities from entering the internal hexagonal recess and affecting the use of tools and the tightening effect of bolts, this bolt fastener has a hexagonal dustproof plate that slides inside the internal hexagonal recess. When a tool is needed to tighten the bolt, the tool will push the hexagonal dustproof plate downward, exposing the internal hexagonal recess. When the tool is removed, the hexagonal dustproof plate will return to its original position under the action of the return spring, covering the internal hexagonal recess.

[0019] Matching of limit slider and limit groove: In order to ensure the stability and reliability of the hexagonal dustproof sheet during movement, this bolt fastener has a limit slider on the side wall of the hexagonal dustproof sheet and a limit groove on the side wall of the inner hexagonal groove. In this way, the limit slider can slide in the limit groove to prevent the hexagonal dustproof sheet from dislodging from the inner hexagonal groove.

[0020] The function of epoxy paint coating: In order to improve the corrosion resistance of the bolt body and hexagonal nut, this bolt fastener is uniformly covered with a layer of epoxy paint coating on their surface. This coating can effectively prevent the bolt fastener from being corroded and damaged during use, thereby extending its service life.

[0021] This utility model has the following beneficial effects:

[0022] This invention increases the friction between the bolt fastener and the contact surface by setting an interlocking anti-slip component, effectively preventing loosening and improving the fastening effect.

[0023] In this invention, the hexagonal dustproof plate that slides within the internal hexagonal groove can effectively prevent dust and other impurities from entering the groove, avoiding obstruction during tool use. It also protects bolt fasteners from corrosion and damage. The cooperation between the limiting slider and the limiting groove ensures the stability and reliability of the hexagonal dustproof plate during movement, preventing it from detaching from the internal hexagonal groove.

[0024] The epoxy paint coating that is uniformly applied to the surface of the bolt body and the hexagonal nut in this invention can effectively improve their corrosion resistance and extend the service life of the bolt fastener. Attached Figure Description

[0025] Figure 1 A three-dimensional structural diagram of a bolt fastener for a new energy vehicle provided in an embodiment of this utility model;

[0026] Figure 2 A schematic diagram showing the separation of the hexagonal dustproof plate and the inner hexagonal groove in a bolt fastener for a new energy vehicle, provided as an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the separation structure of the interlocking anti-slip component of a bolt fastener for a new energy vehicle provided in an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of a hexagonal bolt head for a new energy vehicle bolt fastener provided in an embodiment of the present utility model.

[0029] Reference numerals: 1. Bolt body; 2. Hexagonal nut; 3. Hexagonal bolt head; 4. Internal hexagonal groove; 5. Annular anti-slip pad; 6. Trapezoidal interlocking protrusion; 7. Anti-slip diagonal pattern; 8. Hexagonal dustproof sheet; 9. Reset spring; 10. Limiting slider; 11. Limiting groove. Detailed Implementation

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

[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0033] Example 1

[0034] Please refer to Figure 1-4 A bolt fastener, the structure of which mainly includes a bolt body 1, a hexagonal nut 2, and an interlocking anti-slip component, etc.

[0035] The bolt body 1 has a standard threaded part for threaded connection with the hexagonal nut 2. The top of the bolt body 1 is provided with a hexagonal bolt head 3 for easy tightening with tools such as wrenches. To improve the convenience and versatility of tightening, an internal hexagonal groove 4 is designed in the center of the hexagonal bolt head 3. This internal hexagonal groove 4 can be adapted to various internal hexagonal tools for tightening.

[0036] To improve the corrosion resistance of the bolt body 1 and the hexagonal nut 2, an epoxy paint coating is uniformly applied to their surfaces. This epoxy paint coating can effectively prevent the bolt fasteners from being corroded and damaged during use, thereby extending their service life.

[0037] To further improve the anti-slip performance of bolt fasteners, two sets of interlocking anti-slip components are set between the hexagonal bolt head 3 and the hexagonal nut 2. Both sets of interlocking anti-slip components are sleeved on the threaded rod of the bolt body 1. Each set includes two vertically opposite annular anti-slip pads 5. On the opposite surface of each annular anti-slip pad 5, multiple trapezoidal interlocking protrusions 6 are arranged in a ring array. These trapezoidal interlocking protrusions 6 can interlock and fix the two annular anti-slip pads 5 when they come close to each other, thereby increasing the friction between the bolt head 3 and the nut 2 and the corresponding contact surface and preventing loosening.

[0038] On the other side of the two annular anti-slip pads 5 (i.e., the side opposite to the trapezoidal interlocking protrusions 6), multiple anti-slip twills 7 are arranged in a ring array. These anti-slip twills 7 can further increase the friction between the annular anti-slip pads 5 and the contact surface, and enhance the anti-slip effect.

[0039] This application can be used for bolts in new energy vehicles, as well as for other fields applicable to this application.

[0040] Example 2

[0041] Improvements based on Example 1:

[0042] A bolt fastener for new energy vehicles, which is used in the field of bolts;

[0043] Please refer to Figure 2 and Figure 4 To further improve the dustproof performance of the internal hexagonal recess 4, a hexagonal dustproof sheet 8 is slidably disposed inside the internal hexagonal recess 4 in this embodiment. A reset spring 9 is fixedly disposed at the bottom of the hexagonal dustproof sheet 8, and the other end of the reset spring 9 is fixedly connected to the bottom of the inner wall of the internal hexagonal recess 4. When an internal hexagonal tool is needed for screwing, the tool will push the hexagonal dustproof sheet 8 downward and compress the reset spring 9. When the tool is removed, the reset spring 9 will push the hexagonal dustproof sheet 8 to reset, thereby blocking the internal hexagonal recess 4 and preventing dust and other impurities from entering.

[0044] To ensure that the hexagonal dustproof sheet 8 does not detach from the inner hexagonal groove 4 during movement, two limiting sliders 10 are symmetrically fixed on the side wall of the hexagonal dustproof sheet 8. Correspondingly, a limiting groove 11 for sliding connection of the corresponding limiting slider 10 is provided on the side wall of the inner hexagonal groove 4. In this way, the cooperation between the limiting slider 10 and the limiting groove 11 can ensure the stability and reliability of the hexagonal dustproof sheet 8 during movement.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A bolt fastener for new energy vehicles, characterized in that, include: Bolt body (1), the bolt body (1) has a threaded connection to a matching hexagonal nut (2), the center of the hexagonal bolt head (3) at the top of the bolt body (1) is provided with an internal hexagonal groove (4) for easy screwing by various tools, and a hexagonal dustproof plate (8) is slidably provided in the internal hexagonal groove (4). Two sets of interlocking anti-slip components are placed between the hexagonal bolt head (3) and the hexagonal nut (2) to increase the friction between the hexagonal bolt head (3), the hexagonal nut (2) and the corresponding contact surfaces, respectively.

2. The bolt fastener for new energy vehicles according to claim 1, characterized in that, Both sets of the interlocking anti-slip components are sleeved on the screw of the bolt body (1). The interlocking anti-slip components include two annular anti-slip pads (5) arranged vertically opposite each other. On the opposite surfaces of the two annular anti-slip pads (5), a plurality of trapezoidal interlocking protrusions (6) for interlocking and fixing are arranged in an annular array.

3. A bolt fastener for new energy vehicles according to claim 2, characterized in that, On the other side of each of the two annular anti-slip pads (5), multiple anti-slip twills (7) are arranged in a ring array.

4. A bolt fastener for new energy vehicles according to claim 1, characterized in that, A reset spring (9) is fixedly installed at the bottom of the hexagonal dustproof sheet (8), and the other end of the reset spring (9) is fixedly connected to the bottom of the inner wall of the hexagonal groove (4).

5. A bolt fastener for new energy vehicles according to claim 4, characterized in that, The hexagonal dustproof sheet (8) is symmetrically fixed with two limiting sliders (10) to prevent it from detaching from the inner hexagonal groove (4). The inner hexagonal groove (4) is provided with a limiting groove (11) for sliding connection with the corresponding limiting slider (10).

6. A bolt fastener for new energy vehicles according to claim 1, characterized in that, The surfaces of the bolt body (1) and the hexagonal nut (2) are uniformly covered with an epoxy paint coating to improve corrosion resistance.

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