A type of fully enclosed license plate frame

Abstract

This utility model discloses a fully enclosed license plate frame, including a front plate and a rear plate that are parallel to each other. The front plate and the rear plate are fitted together to form a groove for accommodating an external license plate. The groove connects to the top of the front plate to form an opening for inserting the external license plate into the groove. The surface of the front plate has a through groove for exposing the markings on the external license plate. The top of the front plate is provided with a limiting structure for closing the opening and contacting the top wall of the external license plate, and a fixing structure for linkage with the limiting structure to allow the limiting structure to be detachably connected to the top of the front plate. The rear plate is provided with a connecting structure for detachably connecting the rear plate to the frame of an external vehicle. The inner wall edge of the front plate is bent towards the rear plate to form a first edging for wrapping the outer perimeter of the license plate. The inner wall of the rear plate is integrally connected to the first edging. This utility model solves the problem that traditional license plates are easily bent or damaged by external impacts.

Description

Technical Field

[0001] This utility model relates to the field of license plate mounting frame technology, specifically a fully enclosed license plate frame. Background Technology

[0002] In modern transportation systems, license plates serve as crucial vehicle identifiers. They are not only key for traffic management departments to identify vehicles and regulate traffic order, but also a necessary condition for vehicles to legally drive on roads. With the continuous increase in car ownership, the road conditions and external environments vehicles face during operation are becoming increasingly complex. License plates are susceptible to various external factors, such as collisions, bumps, rain erosion, and dust accumulation. Among these, the problem of license plates bending or being damaged due to external impacts is particularly prominent. When a vehicle experiences a collision, scrape, or travels on bumpy roads, the impact force directly acts on the license plate. Due to the lack of effective protective structures, license plates are prone to bending, deformation, or even breakage, severely affecting their normal use and identification, and causing considerable inconvenience to traffic management and vehicle owners. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a fully enclosed license plate frame, which solves the problem that traditional license plates are easily bent or damaged by external impacts.

[0004] To achieve the above objectives, this utility model provides a fully enclosed license plate frame, comprising a front plate and a rear plate that are parallel to each other. The front plate and the rear plate are fitted together to form a groove for accommodating an external license plate. The groove connects to the top of the front plate to form an opening for inserting the external license plate into the groove. The surface of the front plate has a through groove for exposing the markings on the external license plate. The top of the front plate is provided with a limiting structure for closing the opening and contacting the top wall of the external license plate, and a fixing structure for linkage with the limiting structure to allow the limiting structure to be detachably connected to the top of the front plate. The rear plate is provided with a connecting structure for detachably connecting the rear plate to the frame of an external vehicle. The inner wall edge of the front plate is bent towards the rear plate to form a first edging for wrapping the outer periphery of the license plate. The inner wall of the rear plate is integrally connected to the first edging.

[0005] The advantages of adopting the above technical solution are as follows: The groove formed by the gap fit between the front and rear panels and the top opening not only ensures the convenience of license plate installation, but also achieves full-coverage protection of the license plate's outer perimeter through the integrated connection structure between the first edge of the front panel's inner wall and the rear panel's inner wall. This full-coverage design ensures that all four sides of the license plate are tightly wrapped by a rigid structure. Compared to traditional license plate frames that are only fixed at the edges, this effectively disperses impact forces from the front, sides, and top during vehicle operation. For example, when a vehicle experiences a minor scratch or is struck by road debris, the first edge can evenly transmit the impact force to the entire front and rear panels through structural strength, preventing stress concentration that could cause the license plate to bend. Secondly, the top limiting structure works in conjunction with the fixing structure, closing the opening while simultaneously... The contact with the top wall of the license plate forms a longitudinal limit, preventing the license plate from shifting vertically due to vibration. This ensures the license plate is stably clamped within the slot, preventing edge warping or overall loosening even when the vehicle travels on bumpy roads or at high speeds. This avoids the problem of blurred markings caused by insecure fixing in traditional license plate frames. The cooperation between the front panel and the limiting structure facilitates the insertion of the license plate into the slot through the opening, improving the efficiency of license plate installation and removal. Furthermore, the connecting structure on the rear panel is detachable, facilitating quick installation of the license plate frame onto the vehicle frame and adapting to different vehicle models' mounting hole layouts. The through-slot design on the front panel surface ensures complete exposure of the license plate markings while preventing obstruction of license plate information through reserved display areas, thus ensuring the recognition accuracy of the traffic management system.

[0006] The present invention further includes the following: the limiting structure includes an upper plate, the inner wall of the upper plate is provided with a pressure beam along the length of the front plate for pressing against the top wall of the external license plate, the pressure beam and the first edging are combined to wrap the outer periphery of the external license plate, the inner wall edge of the upper plate is bent towards the rear plate to form a second edging, and the two ends of the second edging are respectively in contact with the two ends of the first edging.

[0007] The advantages of adopting the above technical solution are: In the above technology, the pressure beam is set along the length of the front plate and directly pressed against the top wall of the license plate, forming a combined protective structure of "top pressing + circumferential wrapping" with the first circumferential edge. When the upper plate is subjected to radial impact, the pressure beam can convert the vertical impact force into a dispersed force along the length of the front plate, which is transmitted to the entire frame structure through the contact between the second edge and the first edge. This avoids the bending of the upper edge of the traditional license plate frame due to the lack of support at the top. The contact between the two ends of the second edge and the first edge not only seals the opening at the top of the slot, preventing rainwater, dust and other foreign objects from entering the slot and contaminating the license plate, but also forms a complete mechanical transmission path through the continuity of the edge structure.

[0008] This utility model further includes the following: the fixing structure includes upper connecting blocks disposed at both ends of the inner wall of the upper plate and lower connecting blocks disposed at both ends of the inner wall of the front plate. The two upper connecting blocks are disposed one-to-one with the two lower connecting blocks. The bottom wall of each of the two upper connecting blocks is fitted to the top wall of its corresponding lower connecting block. The upper connecting blocks are integrally formed with the second edging. The upper connecting blocks have a first connecting hole that connects to the outer peripheral wall of the second edging. The lower connecting blocks have a second connecting hole coaxially disposed at the position corresponding to the first connecting hole. The fixing structure also includes two connecting bolts. The two connecting bolts are disposed one-to-one with the two first connecting holes and are threadedly connected. The ends of the two connecting bolts are threadedly connected to their respective adjacent second connecting holes.

[0009] The advantages of adopting the above technical solution are as follows: The integrated molding design of the upper connecting block and the second edge ensures the overall strength of the top limiting structure and avoids stress concentration problems caused by split connections. That is, when the connecting bolts are tightened, the mating surfaces of the upper and lower connecting blocks form a stable mechanical engagement, so that when the limiting structure is subjected to top impact force, the load can be evenly transferred to the front plate body through the connecting blocks, rather than relying on a single bolt for force. Secondly, the coaxial design of the first and second connecting holes and the bolt thread connection method provide high-precision positioning effect and reliable anti-loosening ability. Compared with traditional snap-fit ​​or glue connection, the thread connection can achieve the preset tightening force through torque control, ensuring that the limiting structure will not loosen under long-term vibration environment, which is especially suitable for scenarios with large temperature differences and frequent road bumps.

[0010] The present invention further comprises: the bottom wall of the upper connecting block and the side wall of the upper connecting block are connected by a smooth curved surface and form a first inclined surface; the top wall of the lower connecting block and the side wall of the lower connecting block are connected by a smooth curved surface and form a second inclined surface; the first inclined surface and the second inclined surface are abutted against each other; the first connecting hole is connected to the first inclined surface and is perpendicular to the first inclined surface; the second connecting hole is connected to the second inclined surface and is perpendicular to the second inclined surface; and the connecting bolt is inclined to the second edging.

[0011] The advantages of adopting the above technical solution are: the design of the first and second inclined surfaces in the above technology creates a connection surface with stress dispersion function, which further improves the impact resistance of the fixed structure. The smooth curved surface connection of the inclined surfaces allows the upper and lower connecting blocks to form a multi-angle load transmission path when they come into contact. That is, when the connecting bolt is subjected to lateral impact force, the inclined surface can decompose the force into a component force perpendicular to the bolt axis and a friction force along the inclined surface, avoiding the bolt from bearing pure shear force, thereby improving the fatigue strength of the bolt. For example, when a vehicle passes over a speed bump or pothole, the inclined surface can effectively absorb vibration energy and reduce stress concentration in the connecting parts.

[0012] The present invention is further provided with elastic pads attached to the inner peripheral wall of the first edging, the inner peripheral wall of the second edging, and the bottom wall of the pressure beam. The elastic pads are made of elastic rubber material.

[0013] The advantages of adopting the above technical solution are as follows: The elastic pads set at the first edge, the second edge, and the pressure beam in the above technology construct a rigid-flexible buffer protection system, which significantly improves the license plate frame's ability to absorb vibration and impact. The elastic pads made of elastic rubber have good damping characteristics. When the license plate is subjected to external impact, the elastic pads can absorb part of the impact energy through their own deformation, avoiding stress concentration caused by rigid contact. In addition, the design of the elastic pads solves the wear problem that may occur when traditional rigid edges are in direct contact with the license plate. During long-term vehicle operation, the friction between the metal edge and the license plate caused by vibration can cause the surface coating of the license plate to peel off or even damage the metal substrate. As an intermediate buffer layer, the elastic pads can reduce the coefficient of friction through a soft contact interface, so that the relative displacement of the license plate within the edge is limited to the elastic deformation range, thereby protecting the integrity of the license plate surface.

[0014] The present invention further includes the following: the connection structure includes a first through groove for inserting an external bolt and threading it to a pre-embedded hole on the external vehicle frame, and a second through groove for inserting an external license plate bolt and stably connecting the license plate to the rear plate. Both the first through groove and the second through groove are formed on the rear plate.

[0015] The advantages of adopting the above technical solution are as follows: The design of the first and second through slots in the above technology achieves a double stable connection between the license plate frame and the vehicle frame, and between the license plate and the license plate frame, which combines installation convenience and structural reliability. The first through slot is used for bolt connection of the pre-embedded holes in the vehicle frame. Its size and position design are adapted to the installation standards of mainstream models, allowing external bolts to be inserted at a certain angle, which solves the compatibility problem caused by the fixed installation hole position of traditional license plate frames. The second through slot is used for fixing the license plate to the rear plate. The license plate is directly fixed to the license plate frame by external license plate bolts, forming a double fixing system. In the existing technology, the license plate is equipped with corresponding license plate bolts and the license plate also has a corresponding "I"-shaped slot. Thus, the second through slot and the slot are matched by the license plate bolts, thereby improving the stable connection between the rear plate and the license plate. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional view of the present invention;

[0017] Figure 2 This is a three-dimensional view of the rear side of the present invention;

[0018] Figure 3 This is a three-dimensional view of the mating state of the upper connecting block and the lower connecting block in this utility model.

[0019] Figure 4 for Figure 3 Side sectional view. Detailed Implementation

[0020] This utility model provides a fully enclosed license plate frame, including a front plate 1 and a rear plate 2 that are parallel to each other. The front plate 1 and the rear plate 2 are fitted together to form a receiving groove 11 for accommodating an external license plate. The receiving groove 11 connects to the top of the front plate 1 to form an opening 111 for inserting the external license plate into the receiving groove 11. The surface of the front plate 1 has a through groove 14 for exposing the markings on the external license plate. The top of the front plate 1 is provided with a limiting structure for closing the opening 111 and contacting the top wall of the external license plate, and a fixing structure for linkage with the limiting structure to allow the limiting structure to be detachably connected to the top of the front plate 1. The rear plate 2 is provided with a connecting structure for detachably connecting the rear plate 2 to the external vehicle frame. The inner wall edge of the front plate 1 is bent towards the rear plate 2 to form a... The first edging 12 wraps around the outer perimeter of the license plate. The inner wall of the rear plate 2 is integrally connected to the first edging 12. The limiting structure includes an upper plate 3. The inner wall of the upper plate 3 has a pressure beam 31 along the length of the front plate 1 for pressing against the top wall of the outer license plate. The pressure beam 31 and the first edging 12 together wrap the outer perimeter of the license plate. The inner wall edge of the upper plate 3 is bent towards the rear plate 2 to form a second edging 32. The two ends of the second edging 32 are respectively in contact with the two ends of the first edging 12. The fixing structure includes upper connecting blocks 33 at both ends of the inner wall of the upper plate 3 and lower connecting blocks 13 at both ends of the inner wall of the front plate 1. The two upper connecting blocks 33 and the two lower connecting blocks 13 are arranged one-to-one. The bottom of the two upper connecting blocks 33... The upper connecting block 33 is integrally formed with the second edging 32 and the lower connecting block 13. The upper connecting block 33 has a first connecting hole 331 that connects to the outer peripheral wall of the second edging 32. The lower connecting block 13 has a second connecting hole 131 coaxially positioned corresponding to the first connecting hole 331. The fixing structure also includes two connecting bolts 332, each corresponding to one of the two first connecting holes 331 and threadedly connected. The ends of both connecting bolts 332 are threadedly connected to their adjacent second connecting holes 131. The bottom wall and side wall of the upper connecting block 33 are connected by a smooth curved surface and form a first... An inclined surface 333 is formed, and the top wall and side wall of the lower connecting block 13 are connected by a smooth curved surface, forming a second inclined surface 132. The first inclined surface 333 and the second inclined surface 132 are abutted against each other. The first connecting hole 331 is connected to the first inclined surface 333 and is perpendicular to the first inclined surface 333. The second connecting hole 131 is connected to the second inclined surface 132 and is perpendicular to the second inclined surface 132. The connecting bolt 332 is inclined relative to the second edging 32. Elastic pads 21, made of elastic rubber, are attached to the inner peripheral walls of the first edging 12, the second edging 32, and the bottom wall of the pressure beam 31.The connection structure includes a first through slot 22 for inserting external bolts and threadedly connecting them to pre-embedded holes on the external vehicle frame, and a second through slot 23 for inserting external license plate bolts and stably connecting the license plate to the rear plate 2. Both the first through slot 22 and the second through slot 23 are formed on the rear plate 2.

[0021] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A fully enclosed license plate frame, characterized in that: The device includes a parallel front panel and a rear panel. The front panel and the rear panel are fitted together to form a groove for accommodating an external license plate. The groove connects to the top of the front panel to form an opening for inserting the external license plate into the groove. The surface of the front panel has a through groove for exposing the markings on the external license plate. The top of the front panel is provided with a limiting structure for closing the opening and contacting the top wall of the external license plate, and a fixing structure for linkage with the limiting structure to allow the limiting structure to be detachably connected to the top of the front panel. The rear panel is provided with a connecting structure for detachably connecting the rear panel to the frame of an external vehicle. The inner wall edge of the front panel is bent towards the rear panel to form a first edging for wrapping the outer periphery of the license plate. The inner wall of the rear panel is integrally connected to the first edging.

2. The fully enclosed license plate frame according to claim 1, characterized in that: The limiting structure includes an upper plate, and the inner wall of the upper plate is provided with a pressure beam along the length of the front plate for pressing against the top wall of the external license plate. The pressure beam and the first edging are combined to wrap the outer perimeter of the external license plate. The inner wall edge of the upper plate is bent towards the rear plate to form a second edging, and the two ends of the second edging are respectively in contact with the two ends of the first edging.

3. The fully enclosed license plate frame according to claim 2, characterized in that: The fixing structure includes upper connecting blocks at both ends of the inner wall of the upper plate and lower connecting blocks at both ends of the inner wall of the front plate. The two upper connecting blocks correspond one-to-one with the two lower connecting blocks. The bottom wall of each of the two upper connecting blocks is fitted to the top wall of its corresponding lower connecting block. The upper connecting blocks are integrally formed with the second edging. The upper connecting blocks have a first connecting hole that connects to the outer peripheral wall of the second edging. The lower connecting blocks have a second connecting hole coaxially at the position corresponding to the first connecting hole. The fixing structure also includes two connecting bolts. The two connecting bolts correspond one-to-one with the two first connecting holes and are threadedly connected. The ends of the two connecting bolts are threadedly connected to their respective adjacent second connecting holes.

4. A fully enclosed license plate frame according to claim 3, characterized in that: The bottom wall of the upper connecting block and the side wall of the upper connecting block are connected by a smooth curved surface and form a first inclined surface. The top wall of the lower connecting block and the side wall of the lower connecting block are connected by a smooth curved surface and form a second inclined surface. The first inclined surface and the second inclined surface are abutted against each other. The first connecting hole is connected to the first inclined surface and is perpendicular to the first inclined surface. The second connecting hole is connected to the second inclined surface and is perpendicular to the second inclined surface. The connecting bolt is inclined to the second edging.

5. A fully enclosed license plate frame according to claim 2, characterized in that: Elastic pads are attached to the inner peripheral walls of the first and second edging edges and the bottom wall of the pressure beam. The elastic pads are made of elastic rubber.

6. A fully enclosed license plate frame according to claim 1, characterized in that: The connection structure includes a first through slot for inserting an external bolt and threading it to a pre-embedded hole on the external vehicle frame, and a second through slot for inserting an external license plate bolt and stably connecting the license plate to the rear plate. Both the first and second through slots are formed on the rear plate.

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