A quick-installation anti-loosening device for fasteners in new energy vehicles

Abstract

This utility model provides a quick-installation anti-loosening device for fasteners in new energy vehicles, relating to the field of fastener anti-loosening technology. The device includes a main body; the main body is provided with bolts in a vertical direction, the bottom end face of which is provided with a regular hexagonal prism, the upper outer circumference of which is threaded, the upper end of which has a through-hole pin hole, the top end face of which has a threaded blind hole, and the middle of the top end face of which has a through-hole front-rear limiting groove. This facilitates the installation of a limiting anti-loosening pin on the bolts via threads, and allows for easy rotation and disassembly of the limiting anti-loosening pin through the regular hexagonal groove and the strip groove. This solves the problems of a single rotating structure affecting assembly efficiency after slippage, and the inconvenience of using two different rotating structures. It also allows for the replacement of one rotating structure with another after slippage, thus achieving rapid installation.

Description

Technical Field

[0001] This utility model belongs to the field of fastener anti-loosening technology, and in particular relates to a fastener quick-installation anti-loosening device for new energy vehicles. Background Technology

[0002] Fasteners for new energy vehicles refer to mechanical parts used to connect and fix various components of new energy vehicles. They mainly include bolts, screws, nuts, and washers. These fasteners require anti-loosening devices to prevent loosening. Anti-loosening devices are devices that prevent fasteners from loosening under vibration or dynamic loads. They mainly include friction anti-loosening, mechanical anti-loosening, thread breakage anti-loosening, and chemical bonding anti-loosening.

[0003] Based on the above, the inventors have discovered the following shortcomings in existing fastener anti-loosening devices:

[0004] 1. The installation of a single rotating structure affects assembly efficiency when the rotating structure slips. It is inconvenient to set up two different rotating structures so that if one rotating structure slips, another rotating structure can be used to continue assembly, thereby achieving rapid installation.

[0005] 2. During the installation of the device, the fasteners need to be stopped by a wrench to prevent the device from rotating irrationally. It is inconvenient to install fasteners on the device to stop the rotation of the fasteners and prevent the device from rotating irrationally. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a quick-installation anti-loosening device for fasteners in new energy vehicles. This solves the issues of existing installation rotary structures being singular, affecting assembly efficiency after slippage, and making it inconvenient to set up two different rotary structures. If one rotary structure slips, another can be used to continue assembly, thus achieving rapid installation. Furthermore, during installation, the fasteners require a wrench to prevent rotation, thus preventing ineffective rotation of the device. It is inconvenient to add anti-rotation measures to the device itself to prevent this.

[0007] The purpose and effectiveness of this utility model's quick-installation anti-loosening device for fasteners in new energy vehicles are achieved through the following specific technical means:

[0008] A quick-installation anti-loosening device for fasteners in new energy vehicles includes a device body; the device body is provided with bolts in the vertical direction, the bottom end face of the bolts is provided with a regular hexagonal prism, the upper outer circumference of the bolts is threaded, the upper end of the bolts is provided with a through-hole, the top end face of the bolts is provided with a threaded blind hole, the middle of the top end face of the bolts is provided with a front-to-back through-groove limiting groove, a limiting anti-loosening post is installed inside the threaded blind hole of the bolts, the outer circumference of the limiting anti-loosening post is threaded, the top end face of the limiting anti-loosening post is provided with a regular hexagonal groove, and the inner wall of the regular hexagonal groove of the limiting anti-loosening post is provided with vertical strip grooves.

[0009] Furthermore, the top of the bolt fastener is fitted with a closed protective cover by threads, the inner circumference of the closed protective cover is threaded, and the outer circumference of the closed protective cover is provided with an anti-slip groove array.

[0010] Furthermore, an anti-loosening limit pin is installed inside the pin hole of the bolt fastener, and the outer circumferential surface of the anti-loosening limit pin is provided with a frosted surface.

[0011] Furthermore, a nut anti-loosening block is placed inside the limiting groove of the bolt fastener, a cylindrical block is set in the middle of the nut anti-loosening block, and anti-rotation blocks are set in front of and behind the cylindrical block of the nut anti-loosening block.

[0012] Furthermore, the upper part of the bolt fastener is fitted with an anti-loosening nut by threads. The anti-loosening nut has threads on its inner circumference and a regular hexagonal structure on its outer circumference. The top of the six planes on the outer side of the anti-loosening nut is provided with an anti-rotation groove that runs through both the inside and outside.

[0013] Furthermore, the upper part of the bolt fastener is fitted with a bolt anti-rotation plate, and four inverted conical heads are arranged in a ring array around the bottom end face of the bolt anti-rotation plate. The bolt anti-rotation plate has an arc-shaped groove that runs vertically through both the left and right sides in the middle.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The convenient limiting anti-loosening post is installed on the bolt fastener via a thread. The convenient limiting anti-loosening post can be rotated and disassembled through the regular hexagonal groove and the strip groove. It solves the problems of the installation of a single rotating structure, the impact on assembly efficiency after the rotating structure slips, and the inconvenience of setting two different rotating structures. If one rotating structure slips, the other rotating structure can be replaced to continue the assembly, thus achieving rapid installation.

[0016] The bolt anti-rotation disc is conveniently inserted into automotive parts to prevent rotation. It facilitates the use of the bolt anti-rotation disc to prevent the bolt fasteners from rotating, solving the problem that during the installation process, fasteners need to be stopped with a wrench to prevent the device from rotating ineffectively, and it is inconvenient to add fastener anti-rotation measures to the device to prevent the fasteners from rotating ineffectively. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a disassembled structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the bolt anti-rotation plate of this utility model in the state before installation.

[0021] Figure 5 This is a schematic diagram of the installation state of the anti-loosening nut of this utility model.

[0022] Figure 6 This is a schematic diagram of the installation state of the nut anti-loosening block of this utility model.

[0023] In the diagram: 1. Device body; 2. Bolt fastener; 3. Limiting anti-loosening post; 4. Bolt anti-rotation plate; 5. Anti-loosening nut; 6. Nut anti-loosening block; 7. Anti-loosening limiting pin; 8. Closed protective cover. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0026] This utility model provides a quick-installation anti-loosening device for fasteners in new energy vehicles, including a device body 1. The device body 1 is provided with bolts 2 in the vertical direction for easy connection and fixation of automotive parts and for bearing the load of various components of the device body 1. The bottom end face of the bolts 2 is provided with a regular hexagonal prism for easy positioning of automotive parts. The upper outer circumference of the bolts 2 is threaded to facilitate the installation of anti-loosening nuts 5 and closed protective covers 8. The upper end of the bolts 2 is provided with a through-hole for easy insertion of anti-loosening limiting pins 7. The top end face of the bolts 2 is provided with a threaded blind hole for easy installation of limiting anti-loosening pins 3. A through-groove limiting groove is provided in the middle of the surface to facilitate the insertion of the bolt anti-rotation plate 4 and the nut anti-loosening block 6 into the anti-rotation device. A limiting anti-loosening post 3 is installed inside the threaded blind hole of the bolt fastener 2 to facilitate the clamping and limiting of the nut anti-loosening block 6. The outer circumference of the limiting anti-loosening post 3 is threaded to facilitate the installation and removal of the limiting anti-loosening post 3 through the thread. A regular hexagonal groove is provided on the top end face of the limiting anti-loosening post 3 to facilitate the rotation and installation by a tool that mates with the regular hexagonal groove. The inner wall of the regular hexagonal groove of the limiting anti-loosening post 3 is provided with vertical strip grooves to facilitate the rotation and installation by a tool that mates with the strip grooves. The limiting anti-loosening post 3 can continue to be installed and removed even if one of the regular hexagonal grooves or the strip grooves slips, thus achieving quick installation and removal.

[0027] The bolt fastener 2 is fitted with a bolt anti-rotation plate 4, which allows the bolt anti-rotation plate 4 to be inserted into the automotive part to prevent the bolt fastener 2 from rotating. The bottom end face of the bolt anti-rotation plate 4 has four inverted conical heads arranged in a ring array around its periphery, facilitating insertion into the automotive part for anti-rotation. The bolt anti-rotation plate 4 has arc-shaped grooves running vertically through its center on both sides, facilitating the insertion of the bolt fastener 2 for anti-rotation. A lock-lock nut 5 is threaded onto the upper part of the bolt fastener 2, allowing the bolt fastener 2 to be locked onto the automotive part. The lock-lock nut 5 has threads on its inner circumference, facilitating threaded installation of the bolt fastener 2. The lock-lock nut 5 has a regular hexagonal structure on its outer circumference, facilitating rotation and disassembly using tools. Six flat surfaces on the top of the lock-lock nut 5 have through-hole anti-rotation grooves, facilitating the insertion of the lock-lock block 6 to prevent the lock-lock nut 5 from rotating. The lock-lock block 6 is placed inside the limiting groove of the bolt fastener 2. To facilitate the anti-loosening of the lock nut 5, a cylindrical block is provided in the middle of the lock nut block 6, which is conveniently positioned inside the threaded blind hole of the bolt fastener 2. Anti-rotation blocks are provided at both the front and rear of the cylindrical block of the lock nut block 6, which can be extended from the anti-rotation groove of the bolt fastener 2 and inserted into the anti-rotation groove of the lock nut 5 to prevent the lock nut 5 from rotating. An anti-loosening limiting pin 7 is installed inside the pin hole of the bolt fastener 2 to facilitate the limiting and anti-loosening of the limiting and anti-loosening column 3. The outer circumferential surface of the anti-loosening limiting pin 7 is provided with a frosted surface to increase the friction between it and the bolt fastener 2 and prevent the anti-loosening limiting pin 7 from falling out. A closed protective cover 8 is installed on the top of the bolt fastener 2 by threads to facilitate the sealing and protection of the anti-loosening limiting pin 7 and the limiting and anti-loosening column 3. The inner circumference of the closed protective cover 8 is threaded to facilitate the installation and removal of the closed protective cover 8 by threads. The outer circumference of the closed protective cover 8 is provided with an anti-slip groove in an annular array to facilitate the rotation and anti-slip of the closed protective cover 8.

[0028] The specific usage and function of this embodiment are as follows:

[0029] In this utility model, such as Figure 1 As shown, the device body 1 is installed on the automotive part. At this time, the inverted conical head of the bolt anti-rotation plate 4 is inserted into the automotive part to prevent the bolt fastener 2 from rotating. The bolt fastener 2 prevents the nut anti-loosening block 6 from rotating. The nut anti-loosening block 6 prevents the anti-loosening nut 5 from rotating and loosening. The limiting anti-loosening pin 3 tightens and stops the nut anti-loosening block 6. The limiting anti-loosening pin 7 limits and prevents loosening of the limiting anti-loosening pin 3. The closed protective cover 8 seals and prevents the limiting anti-loosening pin 7 from falling off. This achieves multiple anti-loosening measures for the device body 1. Figure 1 As shown, when assembling and using the various components of the device body 1, the bolt fastener 2 is inserted into the pre-drilled mounting hole in the automotive part and held in place. The bolt anti-rotation plate 4 is then fitted onto the bolt fastener 2, so that the inverted conical head of the bolt anti-rotation plate 4 contacts the automotive part, as shown in the diagram. Figure 4As shown, the cylindrical tool is then placed over the upper end of the bolt fastener 2, contacting the top end face of the bolt anti-rotation plate 4. The cylindrical tool is then hammered to create a dent in the anti-rotation plate 4's conical head on the automotive part. The bolt fastener 2 and the anti-rotation plate 4 are removed from the automotive part. A positioning blind hole is drilled on the automotive part, centered on the dent, using an electric drill. The bolt fastener 2 is then inserted back into the pre-drilled mounting hole on the automotive part and held in place to prevent it from falling out. The anti-rotation plate 4 is then placed over the bolt fastener 2, allowing its conical head to insert into the positioning hole on the automotive part. Inside the blind hole, the bolt anti-rotation plate 4 is thus prevented from rotating. Simultaneously, the arc-shaped groove of the bolt anti-rotation plate 4 also prevents the bolt fastener 2 from rotating. This bolt anti-rotation plate 4 replaces the traditional method of using a wrench to prevent the bolt fastener 2 from rotating, solving the problem of the fastener needing a wrench to prevent rotation during device installation and thus preventing ineffective rotation. It effectively avoids ineffective rotation during the installation of the anti-loosening nut 5. The anti-loosening nut 5 is threaded onto the upper part of the bolt fastener 2, pressing the bolt anti-rotation plate 4 firmly onto the automotive part, as shown in the image. Figure 5 As shown, the nut locking block 6 is placed inside the limiting groove of the bolt fastener 2, so that the anti-rotation block of the nut locking block 6 is inside the anti-rotation groove of the locking nut 5, as shown in the figure. Figure 6 As shown, the anti-loosening block 6 is used to prevent the anti-loosening nut 5 from rotating and loosening. Then, the limiting anti-loosening pin 3 is screwed into the threaded blind hole of the bolt fastener 2 to press the anti-loosening block 6, preventing the anti-loosening block 6 from coming out of the anti-rotation groove of the anti-loosening nut 5. The anti-loosening limiting pin 7 is installed in the pin hole of the bolt fastener 2, thereby limiting the limiting anti-loosening pin 3 and preventing it from loosening. The sealing protective cover 8 is installed on the bolt fastener 2 by thread, thereby sealing and preventing the anti-loosening limiting pin 7 from coming off. At this time, all the components of the device body 1 are assembled. The regular hexagonal groove and strip groove of the limiting anti-loosening pin 3 solve the problem of the single installation rotation structure affecting the assembly efficiency after the rotation structure slips. When one structure slips, another tool can be switched to continue the operation to ensure assembly efficiency and thus achieve quick assembly and disassembly.

[0030] Example 2: Unlike Example 1, the outer circumferential surface of the closed protective cover 8 can also be set as a frosted surface, thereby increasing the friction between the outer circumferential surface of the closed protective cover 8 and the hand, and preventing the outer circumferential surface of the closed protective cover 8 from slipping when rotating.

[0031] Example 3: The difference from Example 1 is that the bottom end face of the closed protective cover 8 can also be set as a frosted surface, thereby increasing the friction between the bottom end face of the closed protective cover 8 and the anti-loosening nut 5, and preventing the closed protective cover 8 from rotating, loosening and falling off.

Claims

1. A quick-installation anti-loosening device for fasteners in new energy vehicles, characterized in that: The device includes a main body (1); the main body (1) is provided with bolts (2) in the vertical direction, the bottom end face of the bolts (2) is provided with a regular hexagonal prism, the upper outer circumference of the bolts (2) is provided with threads, the upper end of the bolts (2) is provided with a pin hole that passes through from left to right, the top end face of the bolts (2) is provided with a threaded blind hole, the middle of the top end face of the bolts (2) is provided with a front-to-back through-groove limiting groove, the threaded blind hole of the bolts (2) is installed with a limiting anti-loosening column (3), the outer circumference of the limiting anti-loosening column (3) is provided with threads, the top end face of the limiting anti-loosening column (3) is provided with a regular hexagonal groove, and the inner wall of the regular hexagonal groove of the limiting anti-loosening column (3) is provided with a strip groove in the vertical direction.

2. The quick-installation anti-loosening device for fasteners in new energy vehicles as described in claim 1, characterized in that: The bolt fastener (2) is fitted with a bolt anti-rotation plate (4) on the upper part. The bottom end face of the bolt anti-rotation plate (4) is arranged with four inverted conical heads in a ring array. The bolt anti-rotation plate (4) has an arc-shaped groove that runs through the middle on both the left and right sides.

3. The quick-installation anti-loosening device for fasteners in new energy vehicles as described in claim 2, characterized in that: The bolt fastener (2) is threaded with an anti-loosening nut (5) on its upper part. The anti-loosening nut (5) has a thread on its inner circumference and a regular hexagonal structure on its outer circumference. The anti-loosening nut (5) has a through-rotation anti-rotation groove on the top of six planes on its outer side.

4. The quick-installation anti-loosening device for fasteners in new energy vehicles as described in claim 3, characterized in that: The bolt fastener (2) has a nut anti-loosening block (6) placed inside the limiting groove. A cylindrical block is set in the middle of the nut anti-loosening block (6), and anti-rotation blocks are set in front of and behind the cylindrical block of the nut anti-loosening block (6).

5. The quick-installation anti-loosening device for fasteners in new energy vehicles as described in claim 4, characterized in that: The bolt fastener (2) has an anti-loosening limit pin (7) installed inside the pin hole, and the outer circumferential surface of the anti-loosening limit pin (7) is provided with a frosted surface.

6. The quick-installation anti-loosening device for fasteners in new energy vehicles as described in claim 5, characterized in that: The bolt fastener (2) has a closed protective cover (8) installed on its top by threads. The closed protective cover (8) has threads on its inner circumference and anti-slip grooves are arranged in annular array on its outer circumference.

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