A license plate sealing device with long service life

Abstract

The utility model relates to the technical field of license plate fixing, and specifically to a license plate fixing device with a good service life, including two pairs of fastening bolts threadedly installed on the license plate body, and an anti-slip assembly for sealing the two pairs of fastening bolts to prevent slipping; it is characterized in that it also includes a second sealing ring, an elastic card, and an anti-slip assembly for stretching and clamping the elastic card in the bolt cap, and a sealing assembly for sealing the connection between the fastening bolt and the license plate body; the bolt cap is slidably arranged on the fastening bolt, and the bolt cap and the fastening bolt axis are colinear. This technical solution can cause the elastic card arranged in the bolt cap to be clamped on the fastening bolt in the bolt cap when the fastening bolt and the license plate body are threadedly installed, which on the one hand reduces the oxidation and rusting of the fastening bolt caused by the entry of rainwater and air, thereby increasing the service life of the fastener in disguise, and on the other hand also improves the anti-theft performance.

Description

Technical Field

[0001] The utility model relates to the technical field of license plate fixing and sealing, in particular to a license plate fixing and sealing device with a good service life. Background Art

[0002] A license plate, also referred to as a vehicle number plate, is a plate hung on the front and rear of a car, usually made of aluminum, iron, plastic or paper, on which the registration number, registration area or other relevant information of the car is engraved. For example, Chinese patent CN215663293U discloses an anti-theft license plate sealing device, which is provided with bolts, springs, threaded rings, a first threaded rod, a circular sheet, a second threaded rod, a sleeve, a cylinder and a limiting groove. When criminals tighten the bolts, the second threaded rod can be separated from the sleeve, but the card and the limiting groove can prevent the license plate from falling off. The license plate can only be removed when the card is in the limiting groove and the bolt is pulled outward, thereby effectively preventing the license plate from being stolen.

[0003] However, in actual use, the other end of the bolt is exposed to the air after installation, which can easily cause air and rainwater to corrode the exposed bolt, which reduces the service life of the bolt and reduces safety, allowing criminals to dismantle the bolt through the exposed bolt. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims at the above defects existing in the prior art and proposes a license plate fixing device with a long service life. The elastic card and the second sealing ring solve the problems of license plate theft and easy corrosion leading to poor installation effect.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the utility model provides a license plate sealing device with a good service life, comprising two pairs of fastening bolts for threaded installation on the license plate body, and an anti-slip assembly for sealing the two pairs of fastening bolts to prevent them from slipping off; it also includes a second sealing ring, an elastic card, and an anti-slip assembly for stretching and clamping the elastic card in the bolt cap, and a sealing assembly for sealing the connection between the fastening bolt and the license plate body; the bolt cap is slidably arranged on the fastening bolt, the bolt cap and the axis of the fastening bolt are colinear, and the bolt cap blocks and covers the fastening bolt in the installed state; the second sealing ring is installed on the fastening bolt; the elastic card is arranged on the upper part of the second sealing ring, the elastic card is in the bolt cap in the working state, and the open opening of the elastic card faces the side located in the bolt cap.

[0008] Preferably, the anti-drop assembly also includes a first sealing ring and a rubber pad; the first sealing ring is arranged on the outside of the fastening bolt, and its diameter matches the diameter of the fastening bolt, and the second sealing ring is arranged in the vertical direction with the first sealing ring, and the second sealing ring and the first sealing ring have a sliding clearance; the rubber pad is arranged between the first sealing ring and the bolt cap.

[0009] Preferably, the anti-drop assembly also includes a first telescopic spring; the first telescopic spring is installed between the second sealing ring and the first sealing ring, with its upper part fixed to the second sealing ring and its bottom fixed inside the first sealing ring.

[0010] Preferably, the sealing assembly includes a first waterproof cover and a second telescopic spring; the first waterproof cover is arranged outside the fastening bolt and located between the fastening bolt and the license plate body; the second telescopic spring is installed on the first waterproof cover.

[0011] Preferably, the sealing assembly also includes a second waterproof cover; the second waterproof cover is arranged in the first waterproof cover, the second waterproof cover and the first waterproof cover are gap-matched, the bottom of the second waterproof cover is fixed to the upper part of the second telescopic spring, and a sliding chamber is opened between the first waterproof cover and the second waterproof cover.

[0012] Preferably, the sealing assembly also includes a silicone gasket; the silicone gasket is arranged between the first waterproof cover and the second waterproof cover.

[0013] Preferably, the fastening bolt further includes a protruding groove and a cross groove; the protruding groove is provided on the fastening bolt, and the elastic card is clearance-matched with the protruding groove; and the cross groove is provided outside the fastening bolt.

[0014] 3. Beneficial Effects

[0015] Compared with the prior art, the utility model provides an elastic card to clamp the bolt cap on the fastening bolt, which reduces the oxidation and rust of the fastening bolt caused by the entry of rainwater and air, thereby increasing the service life of the fastener in disguise, and also improves the anti-theft performance. Further, by providing a first sealing ring, a second sealing ring and a rubber pad, the second sealing ring can reduce the entry of air when sliding in the first sealing ring and overlapping each other, thereby increasing the service life of the first sealing ring and the second sealing ring in disguise, and facilitating disassembly.

[0016] A first waterproof cover is also provided to protect the sealing of the connection gap between the other side of the fastening bolt and the license plate body and the vehicle body, thereby reducing the splashing of rainwater and improving the connection tightness of the fastening bolt, the license plate body and the vehicle body. A silicone gasket is provided and installed at the overlapping position between the second waterproof cover and the first waterproof cover, thereby facilitating the sealing of the position between the second waterproof cover and the first waterproof cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The present invention is a three-dimensional structural diagram of a license plate fixing device having a long service life under installation.

[0018] Figure 2 The present invention is a three-dimensional structural diagram of a license plate fixing device with a long service life in a front view and exploded state.

[0019] Figure 3 The present invention is a front view cross-sectional structural diagram of a license plate fixing device having a long service life.

[0020] Figure 4 The present invention is a cross-sectional structural diagram of a license plate fixing device having a long service life in a front view installation state.

[0021] Figure 5 The invention is a license plate fixing device with a long service life. Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure 6 The present invention is an overall structural diagram of a license plate fixing device with a long service life in a disassembled state.

[0023] Figure 7 The invention discloses a longitudinal stereoscopic cross-sectional structure diagram of a license plate fixing device having a long service life.

[0024] In the figure:

[0025] 1 is the main body of the license plate; 2 is the anti-drop assembly; 21 is the bolt cap; 22 is the second sealing ring; 23 is the elastic card; 24 is the first sealing ring; 25 is the rubber pad; 26 is the first telescopic spring; 3 is the sealing assembly; 31 is the first waterproof cover; 32 is the second telescopic spring; 33 is the second waterproof cover; 34 is the silicone gasket; 4 is the fastening bolt; 5 is the extension groove; 6 is the cross groove. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Embodiment 1:

[0028] like Figure 1-Figure 7As shown, a license plate sealing device with a good service life of the present embodiment includes two pairs of fastening bolts 4 threadedly installed on the license plate body, and an anti-slip assembly 2 for sealing the two pairs of fastening bolts 4 to prevent slipping; it also includes a second sealing ring 22, an elastic card 23 and an anti-slip assembly 2 for stretching and clamping the elastic card 23 in the bolt cap 21, and a sealing assembly 3 for sealing the connection between the fastening bolt 4 and the license plate body 1; the bolt cap 21 is slidably arranged on the fastening bolt 4, the bolt cap 21 and the axis of the fastening bolt 4 are colinear, and the bolt cap 21 blocks and covers the fastening bolt 4 in the installed state; the second sealing ring 22 is installed on the fastening bolt 4; the elastic card 23 is arranged on the upper part of the second sealing ring 22, and the elastic card 23 is in the bolt cap 21 in the working state, and the open opening of the elastic card 23 faces the side located in the bolt cap 21.

[0029] When the two pairs of fastening bolts 4 and the license plate body 1 are threadedly connected and installed on the car, the anti-slip assembly 2 is sleeved on the outside of the fastening bolts 4, and the sealing assembly 3 is sleeved on the connection between the license plate body 1 and the car, and then the two pairs of fastening bolts 4 are rotated to drive the second sealing ring 22 to perform a compression action in the first sealing ring 24, and during compression, the elastic card 23 installed on one side of the second sealing ring 22 is driven to extend out of the fastening bolt 4, and then the bolt cap 21 and the fastening bolt 4 are covered. When covering, the elastic card 23 is pressed and opened in the bolt cap 21 by pressing and the rotational force of the fastening bolt 4 until it is clamped with the inner side of the bolt cap 21, so as to achieve the anti-slip effect of the fastening bolt 4. On the one hand, it reduces the oxidation and rusting of the fastening bolt 4 caused by the entry of rainwater and air, thereby increasing the service life of the fastener in disguise, and on the other hand, it also improves the anti-theft performance.

[0030] like Figure 3-Figure 5 As shown, the anti-drop assembly 2 also includes a first sealing ring 24 and a rubber pad 25; the first sealing ring 24 is arranged outside the fastening bolt 4, and its diameter matches the diameter of the fastening bolt 4, and the second sealing ring 22 is arranged in a vertical direction with the first sealing ring 24, and the second sealing ring 22 and the first sealing ring 24 have a sliding clearance fit; the rubber pad 25 is arranged between the first sealing ring 24 and the bolt cap 21. The second sealing ring 22 can slide up and down in the first sealing ring 24. Due to the provision of the rubber pad 25, the second sealing ring 22 can reduce the entry of air when sliding in the first sealing ring 24 and overlapping each other, thereby increasing the service life of the first sealing ring 24 and the second sealing ring 22 in disguised form, and facilitating disassembly.

[0031] The anti-drop assembly 2 further includes a first telescopic spring 26; the first telescopic spring 26 is installed between the second sealing ring 22 and the first sealing ring 24, with its upper portion fixed to the second sealing ring 22 and its bottom fixed inside the first sealing ring 24. The first telescopic spring 26 is used to give the second sealing ring 22 a force to move up and down, so as to facilitate the sliding fit between the second sealing ring 22 and the first sealing ring 24.

[0032] The sealing assembly 3 includes a first waterproof cover 31 and a second telescopic spring 32; the first waterproof cover 31 is arranged outside the fastening bolt 4 and between the fastening bolt 4 and the license plate body 1; the second telescopic spring 32 is installed on the first waterproof cover 31. The first waterproof cover 31 is arranged on the other side of the connection between the fastening bolt 4 and the license plate body 1 to protect the sealing of the gap between the other side of the fastening bolt 4 and the license plate body 1 and the vehicle body, reduce the splashing of rainwater, and improve the connection tightness between the fastening bolt 4 and the license plate body 1 and the vehicle body.

[0033] like Figure 6-Figure 7 As shown, the sealing assembly 3 also includes a second waterproof cover 33; the second waterproof cover 33 is arranged in the first waterproof cover 31, the second waterproof cover 33 and the first waterproof cover 31 are loosely matched, the bottom of the second waterproof cover 33 is fixed to the upper part of the second telescopic spring 32, and a sliding chamber is opened between the first waterproof cover 31 and the second waterproof cover 33.

[0034] The second waterproof cover 33 is slidably matched with the first waterproof cover 31. In the initial state, the telescopic force of the second telescopic spring 32 drives the second waterproof cover 33 away from the first waterproof cover 31. During installation, the second waterproof cover 33 can be compressed into the first waterproof cover 31 and overlapped to improve the waterproof sealing performance.

[0035] Embodiment 2:

[0036] Compared with Example 1, Figure 6-Figure 7 As shown, in this embodiment, the sealing assembly 3 further includes a silicone gasket 34; the silicone gasket 34 is arranged between the first waterproof cover 31 and the second waterproof cover 33. The silicone gasket 34 is installed at the overlapping position between the second waterproof cover 33 and the first waterproof cover 31, so as to seal the position between the second waterproof cover 33 and the first waterproof cover 31.

[0037] The fastening bolt 4 also includes a protruding groove 5 and a cross groove 6; the protruding groove 5 is provided on the fastening bolt 4, and the elastic card 23 is in clearance fit with the protruding groove 5; the cross groove 6 is provided outside the fastening bolt 4. Tools can be used to perform installation and removal work through the cross groove 6 provided on the side of the fastening bolt 4.

[0038] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A license plate fixing device with a long service life, characterized in that: The license plate fixing device with a good service life comprises two pairs of fastening bolts (4) threadedly mounted on the license plate body, and an anti-slip assembly (2) for sealing the two pairs of fastening bolts (4) to prevent slipping; it also comprises a second sealing ring (22), an elastic card (23), an anti-slip assembly (2) for opening and clamping the elastic card (23) in a bolt cap (21), and a sealing assembly (3) for sealing the connection between the fastening bolt (4) and the license plate body; the bolt cap (21) is slidably arranged on the fastening bolt (4), the bolt cap (21) and the fastening bolt (4) are colinear in axis, and the bolt cap (21) blocks and covers the fastening bolt (4) in the installed state; the second sealing ring (22) is mounted on the fastening bolt (4); the elastic card (23) is arranged on the upper part of the second sealing ring (22), the elastic card (23) is in the bolt cap (21) in the working state, and the open opening of the elastic card (23) faces the side located in the bolt cap (21).

2. A license plate fixing device with a long service life according to claim 1, characterized in that: The anti-drop assembly (2) also includes a first sealing ring (24) and a rubber pad (25); the first sealing ring (24) is arranged outside the fastening bolt (4), and its diameter matches the diameter of the fastening bolt (4), and the second sealing ring (22) is arranged vertically with the first sealing ring (24), and the second sealing ring (22) and the first sealing ring (24) have a sliding clearance fit; the rubber pad (25) is arranged between the first sealing ring (24) and the bolt cap (21).

3. A license plate fixing device with a long service life according to claim 1, characterized in that: The anti-drop assembly (2) also includes a first telescopic spring (26); the first telescopic spring (26) is installed between the second sealing ring (22) and the first sealing ring (24), with its upper portion fixed to the second sealing ring (22) and its bottom portion fixed inside the first sealing ring (24).

4. A license plate fixing device with a long service life according to claim 1, characterized in that: The sealing assembly (3) comprises a first waterproof cover (31) and a second telescopic spring (32); the first waterproof cover (31) is arranged outside the fastening bolt (4) and located between the fastening bolt (4) and the license plate body; the second telescopic spring (32) is installed on the first waterproof cover (31).

5. A license plate fixing device with a long service life according to claim 1, characterized in that: The sealing assembly (3) also includes a second waterproof sleeve (33); the second waterproof sleeve (33) is arranged in the first waterproof sleeve (31), the second waterproof sleeve (33) and the first waterproof sleeve (31) are loosely matched, the bottom of the second waterproof sleeve (33) is fixed to the upper part of the second telescopic spring (32), and a sliding chamber is provided between the first waterproof sleeve (31) and the second waterproof sleeve (33).

6. A license plate fixing device with a long service life according to claim 1, characterized in that: The sealing assembly (3) further comprises a silicone gasket (34); the silicone gasket (34) is arranged between the first waterproof cover (31) and the second waterproof cover (33).

7. A license plate fixing device with a long service life according to claim 1, characterized in that: The fastening bolt (4) further comprises a protruding groove (5) and a cross groove (6); the protruding groove (5) is provided on the fastening bolt (4), and the elastic card (23) is clearance-matched with the protruding groove (5); and the cross groove (6) is provided outside the fastening bolt (4).

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