A license plate theft-proof sealing device

CN224898758UActive Publication Date: 2026-10-27GUANGZHOU DINGAN TRAFFIC TECH
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Patent Information

Application Number
CN202522637994.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-10-27
Estimated Expiration
2035-12-12

AI Technical Summary

Technical Problem

[0003]传统的固封盖帽通常在固封底座和螺栓安装完成后,直接套设或者扣在固封底座上,此种方式固定,容易导致固封盖帽在车辆行驶的颠簸、振动环境下脱落,无法有效地保护内部的螺栓、螺母,从而降低了防盗性能和固封的可靠性

Benefits of technology

[0014]本实用新型与现有技术相比的优点在于:

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Abstract

The utility model relates to license plate fixed sealing technical field discloses a license plate theftproof fixed sealing device, including fixed sealing base, lock bolt and fixed sealing cap, the fixed base center is equipped with the perforation, the lock bolt is inserted and is equipped in the perforation, the fixed sealing base is equipped with the annular slot, the slot size is matched with the wall thickness of fixed sealing cap, the circumference array has a plurality of buckle assemblies on the inwall of slot, the inwall of fixed sealing cap is equipped with the clamping groove matched with buckle assembly, and the buckle assembly includes the clamping block, the inwall of slot is equipped with the through -hole, and the through -hole is connected with the spring piece, and the clamping block is connected and is equipped on the spring piece and is integrally formed with the spring piece. The setting of buckle assembly makes the clamping groove on fixed sealing cap and the clamping block in the slot form mechanical locking, improves the locking of fixed sealing cap, and improves the anti -theft performance of license plate and the reliability of fixed sealing.
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Description

Technical Field

[0001] This utility model relates to the field of license plate fastening technology, specifically to a license plate anti-theft fastening device. Background Technology

[0002] A vehicle license plate is proof that a vehicle is legally allowed to drive on the road and is also the unique identifier of a vehicle. License plates are usually fixed to the vehicle's designated license plate frame by a fastening device, which typically consists of a fastening base, bolts, and a fastening cap.

[0003] Traditional sealing caps are usually directly slipped onto or clipped onto the sealing base after the sealing base and bolts are installed. This method of fixing can easily cause the sealing cap to fall off under the bumps and vibrations of the vehicle, failing to effectively protect the internal bolts and nuts, thus reducing the anti-theft performance and the reliability of the sealing. Utility Model Content

[0004] (I) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the defect of the above-mentioned loose connection of the license plate cap, which is easy to fall off during driving, and to provide a license plate anti-theft sealing device.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a license plate anti-theft fixing device, including a fixing base, an anti-loosening bolt, and a fixing cap. The fixing base has a through hole in the center, and the anti-loosening bolt is inserted into the through hole. The fixing base has an annular slot, the size of which matches the wall thickness of the fixing cap. Multiple buckle components are arranged in a circular array on the inner wall of the slot. The inner wall of the fixing cap has a slot that matches the buckle components. The buckle components include a buckle block. The inner wall of the slot has a through hole, and a spring is connected in the through hole. The buckle block is connected to the spring and is integrally formed with the spring.

[0008] As an improvement: the number of the buckle assembly and the number of the card slots are both six, wherein the card block is located in the slot and the card block is a one-way tooth design with one side being a beveled structure.

[0009] As an improvement: multiple guide blocks are arranged in a circular array on the inner wall of the slot away from the card block, and a guide groove matching the guide blocks is provided on the outer wall of the sealing cap. The positions of the guide blocks and guide grooves correspond one-to-one with the positions of the card block and card slot.

[0010] As an improvement: a magnet is connected inside the slot, and a magnet is provided at the bottom of the sealing cap. The magnet and the magnet are magnetically attracted to each other.

[0011] As an improvement, the head of the anti-loosening bolt is made of internal hexagonal flower shape.

[0012] As an improvement: the anti-loosening bolt is threaded with an inner nut, which is located between the anti-loosening bolt and the sealing base, and the bottom surface of the sealing base is provided with a rubber pad.

[0013] (III) Beneficial Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] The design of the buckle assembly, through the mechanical locking of the buckle block and the buckle slot, allows the sealing cap to fit more tightly with the sealing base, improving the firmness and reliability of the connection between the two, increasing the difficulty of illegally removing the sealing cap, and preventing the sealing cap from falling off due to vibration or other reasons, thus improving the anti-theft performance and increasing the reliability of the license plate sealing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a license plate anti-theft sealing device according to this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.

[0018] Figure 3 yes Figure 1 A schematic diagram of the front half-section structure.

[0019] Figure 4 yes Figure 2 A schematic diagram of the solidified base structure.

[0020] Figure 5 yes Figure 2 A schematic diagram of the solid seal cap structure.

[0021] Figure 6 This is a schematic diagram of the usage state of a license plate anti-theft sealing device according to this utility model.

[0022] [Explanation of Labels in the Attached Image]

[0023] 1. Sealing base; 2. Anti-loosening bolt; 3. Sealing cap; 4. Slot; 5. Card slot; 6. Card block; 7. Spring; 8. Guide block; 9. Guide groove; 10. Magnet one; 11. Magnet two; 12. Inner nut. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0025] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0026] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] The existing sealing cap 3 is directly fastened to the sealing base 1 when connected to the sealing base 1. However, during vehicle operation, bumps and vibrations occur, making it easy for the sealing cap 3 to detach from the sealing base 1. Therefore, in conjunction with the attached... Figure 1 , Figure 2 and Figure 5 As shown, a license plate anti-theft fixing device includes a fixing base 1, an anti-loosening bolt 2, and a fixing cap 3. The fixing base has a through hole in the center, and the anti-loosening bolt 2 is inserted into the through hole. The fixing base 1 has an annular slot 4 inside, and the size of the slot 4 matches the wall thickness of the fixing cap 3. Multiple buckle components are arranged in a circular array on the inner wall of the slot 4. The inner wall of the fixing cap 3 has a slot 5 that matches the buckle components.

[0028] Among them, the combination of appendix Figure 4 As shown, there are six buckle components and six buckle slots. The buckle component includes a buckle block 6. The inner wall of the slot 4 is provided with a through hole, and a spring piece 7 is connected in the through hole. The buckle block 6 is connected to the spring piece 7 and is integrally formed with the spring piece 7. The spring piece 7 has a certain elasticity and can move during the pushing process. The buckle block 6 is located in the slot 4. The buckle block 6 is a one-way tooth design with one side being a beveled structure.

[0029] The even-numbered buckle components are evenly distributed on the circumference, and have good symmetry within the sealing base 1. This ensures that the locking force on the sealing cap 3 is evenly distributed, avoiding excessive local stress on the sealing cap 3 due to uneven force distribution. It also improves the locking strength and stability. The inclined structure of the locking block 6 cooperates with the spring piece 7, which facilitates the rebound and locking of the sealing cap 3 into the slot 5 after insertion, and locks it in place with the slot 5.

[0030] Among them, the combination of appendix Figure 3As shown, the anti-loosening bolt 2 is threaded with an inner nut 12. The inner nut 12 provides initial tightening and locking force to firmly fix the license plate and the sealing base 1 to the license plate frame. The inner nut 12 is located between the anti-loosening bolt 2 and the sealing base 1. The bottom surface of the sealing base 1 is provided with a rubber pad, which is pasted on the contact surface between the sealing base and the license plate. Since the rubber pad has good elasticity and deformation ability, it can fill the gap between the sealing base 1 and the license plate to form a tighter seal, improve the firmness of the license plate installation, and reduce the scratches and abrasions on the license plate caused by the sealing base 1. Moreover, the rubber material has a certain shock absorption capacity, which can absorb and buffer the vibration generated during vehicle driving and reduce the risk of loosening of the sealing device due to vibration.

[0031] Through the above structure, and in combination with the appendix Figure 6 As shown, the specific usage process is as follows: First, align the hole on the license plate with the mounting groove on the license plate frame. Depending on the depth of the mounting groove on the license plate frame, decide whether to use the inner nut 12 on the anti-loosening bolt 2. If so, screw the inner nut 12 to the top of the loosening bolt. Then, pass the anti-loosening bolt 2 through the through hole of the sealing base 1 and insert it into the mounting groove of the license plate frame. Tighten the loosening bolt with a tool so that the fixing base and the license plate are securely installed on the license plate frame. Finally, after aligning the locking block 6 with the locking groove 5, push the sealing cap 3 into the slot 4. Under the elastic action of the spring piece 7, the locking block 6 is locked in the slot 5. The two engage to form a mechanical lock, ensuring the tight connection between the sealing cap 3 and the sealing base 1.

[0032] At the same time, combined with the appendix Figure 2 As shown, the head of the anti-loosening bolt 2 is made of internal hexagonal flower shape, which is different from the common cross flower or flat flower shape on the market, and can improve the anti-theft performance.

[0033] In order to ensure that the card block 6 is properly seated in the card slot 5 and to prevent the card block 6 from deviating in position, therefore, in conjunction with the attached... Figure 4 and Figure 5 As shown, multiple guide blocks 8 are arranged in a circular array on the inner wall of the slot 4 on the side away from the card block 6, and a guide groove 9 matching the guide blocks 8 is provided on the outer wall of the sealing cap 3. The positions of the guide blocks 8 and the guide groove 9 correspond one-to-one with the positions of the card block 6 and the card slot 5, respectively.

[0034] With the above structure, when installing the sealing cap 3, the guide groove 9 needs to be aligned with the guide block 8 to provide a precise guiding path for the sealing cap 3, forcing the sealing cap 3 to move along the correct path, which greatly reduces the installation difficulty and improves the installation efficiency and success rate.

[0035] Combined with appendix Figure 4 and Figure 5As shown, a magnet 10 is connected inside the slot 4, and a magnet 21 is provided at the bottom of the sealing cap 3. The magnet 10 and the magnet 21 are magnetically attracted to each other. When the sealing cap 3 is inserted into the slot 4, the magnetic attraction between the magnet 10 and the magnet 21 further enhances the firmness of the connection between the sealing cap 3 and the sealing base 1.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A license plate anti-theft fixing device, comprising a fixing base (1), an anti-loosening bolt (2), and a fixing cap (3), wherein the fixing base (1) has a through hole in the center, and the anti-loosening bolt (2) is inserted into the through hole, characterized in that: The sealing base (1) is provided with an annular slot (4), the size of the slot (4) is matched with the wall thickness of the sealing cap (3), and multiple buckle components are arranged in a circular array on the inner wall of the slot (4), and the inner wall of the sealing cap (3) is provided with a slot (5) that matches the buckle components. The buckle assembly includes a buckle block (6), and the inner wall of the slot (4) is provided with a through hole. A spring piece (7) is connected in the through hole. The buckle block (6) is connected to the spring piece (7) and is integrally formed with the spring piece (7).

2. The license plate anti-theft sealing device according to claim 1, characterized in that: The number of the buckle assembly and the number of the slot (5) are both six, wherein the card block (6) is located in the slot (4), and the card block (6) is a one-way tooth design with one side being a beveled structure.

3. The license plate anti-theft sealing device according to claim 2, characterized in that: Multiple guide blocks (8) are arranged in a circular array on the inner wall of the slot (4) away from the card block (6). The outer wall of the sealing cap (3) is provided with a guide groove (9) that matches the guide block (8). The positions of the guide block (8) and the guide groove (9) correspond one-to-one with the positions of the card block (6) and the card slot (5).

4. The license plate anti-theft sealing device according to claim 1, characterized in that: A magnet (10) is connected inside the slot (4), and a magnet (11) is provided at the bottom of the sealing cap (3). The magnet (10) and the magnet (11) are magnetically attracted to each other.

5. A license plate anti-theft sealing device according to claim 1, characterized in that: The head of the anti-loosening bolt (2) is an internal hexagonal flower shape.

6. A license plate anti-theft sealing device according to claim 1, characterized in that: The anti-loosening bolt (2) is threaded with an inner nut (12), which is located between the anti-loosening bolt (2) and the sealing base (1). The bottom surface of the sealing base (1) is provided with a rubber pad.