High-sealing-performance automobile headlamp sealing rear cover
By employing a stepped structure and multiple sealing and reinforcement components in the sealing cover of automotive headlights, the problems of insufficient sealing and unreasonable structure are solved, achieving high sealing performance and convenient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG TIANYI RUBBER & PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-05
AI Technical Summary
The existing sealing cover for automotive headlights has insufficient sealing performance, unreasonable structural design, and is inconvenient to install and disassemble, affecting its service life and performance.
A high-sealing automotive headlight sealing cover is designed, which adopts an internal first and second step superimposed structure, and is equipped with a sealing groove, sealing ring, drive plate, reinforcing plate, L-shaped block, limit block and elastic sealing component. Through the cooperation of these components, multiple sealing and reinforcement are achieved, improving sealing performance and strength.
It improves sealing performance, strengthens the joints, ensures that the seal does not deteriorate during long-term use, prevents cracking, and enables convenient installation and disassembly.
Smart Images

Figure CN224201558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts application technology, and in particular to a high-sealing automotive headlight sealing cover. Background Technology
[0002] With the continuous development of the automotive industry, the performance and quality requirements for automotive headlights, as an important lighting component for nighttime driving, are becoming increasingly stringent. The sealing performance of headlights is one of the key factors affecting their performance and lifespan. If the headlights are poorly sealed, external dust, moisture, and other impurities can easily enter the headlight, causing short circuits and corrosion of the internal electrical components, affecting the normal lighting effect, and even shortening the headlight's lifespan.
[0003] Currently, the sealing covers for automotive headlights on the market have certain shortcomings in terms of sealing performance. Some sealing covers use simple rubber sealing rings for sealing, which are susceptible to aging and deformation due to factors such as temperature, humidity, and ultraviolet radiation during long-term use, leading to a decline in sealing performance. Other sealing covers have unreasonable structural designs, which can easily damage the sealing components during installation and disassembly, thus affecting the sealing effect. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a high-sealing automotive headlight sealing cover, so as to solve the problems of insufficient sealing performance, unreasonable structural design, and inconvenient installation and disassembly of existing automotive headlight sealing covers mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a high-sealing automotive headlight sealing rear cover is provided, including a rear cover body, wherein a first step and a second step are provided in the rear cover body, and the first step and the second step are stacked and integrally set.
[0006] A sealing groove is provided on the end face of the second step near the outer wall, and a sealing ring is fitted inside the sealing groove to seal the connection between the second step and the outside. A sealing component is provided on the inner wall of the second step to cooperate with the sealing ring to seal the connection when the rear cover body is installed.
[0007] The present invention is further configured such that: multiple driving plates are equidistantly arranged in the circumferential direction of the outer arc wall of the first step, and the bottom of the multiple driving plates is fixedly connected to the surface of the second step to form an integral assembly.
[0008] The above technical solution facilitates the use of multiple drive plates to rotate and lock the entire rear cover body, and the drive plates can be used to reinforce the connection between the first and second steps, thereby increasing strength.
[0009] The present invention is further configured such that: multiple reinforcing plates are equidistantly arranged in the circumferential direction of the outer arc wall of the first step, and the multiple reinforcing plates and multiple driving plates are arranged alternately, while the bottom of the multiple reinforcing plates is fixedly connected to the surface of the second step to form an integral arrangement.
[0010] The above technical solution facilitates the use of multiple reinforcing plates to reinforce the connection between the first and second steps, thereby improving the overall strength of the back cover and preventing cracking at the connection during long-term use.
[0011] The present invention is further configured such that: multiple L-shaped blocks are fixedly connected in the circumferential direction at the outer arc wall edge of the second step.
[0012] The above technical solution facilitates the installation of the rear cover body by allowing the L-shaped locking block to engage with the slot at the car headlight during rotation.
[0013] The present invention is further configured such that multiple limiting blocks are uniformly fixedly connected to the end face of the sealing groove in the circumferential direction.
[0014] The above technical solution facilitates the use of multiple limiting blocks to limit and fix the position of the sealing ring inside the sealing groove, thereby improving the sealing effect during use.
[0015] The present invention is further configured such that: multiple corner blocks are uniformly fixedly connected in the circumferential direction at the bend of the inner wall of the first step.
[0016] The above technical solution allows for the reinforcement of the bend in the first step using multiple triangular corner blocks, thereby improving its strength during use and preventing damage from impacts.
[0017] The present invention is further configured such that: the sealing assembly includes a mounting ring, a slip ring and a spring, the two ends of the spring are respectively fixedly connected to the mounting ring and the slip ring, and the outer wall of the slip ring is smoothly fitted to the inner wall of the second step.
[0018] The above technical solution allows the automotive connecting parts to press against the sealing component when the rear cover is tightened by the knob. This, in turn, utilizes the return elasticity of the internal spring to ensure that the sealing component tightly presses against the gap at the connection point, guaranteeing a tight seal during use.
[0019] The beneficial effects of this utility model are as follows:
[0020] 1. The high-sealing automotive headlight sealing cover proposed in this utility model has an elastic sealing component inside the cover. When the cover is tightened by a knob, the automotive connecting parts will squeeze the sealing component. The return elasticity of the internal spring will make the sealing component tightly press against the gap at the connection, ensuring the sealing performance during use.
[0021] 2. The high-sealing automotive headlight sealing cover proposed in this utility model has alternating drive plates and reinforcing plates on the outer wall of the cover, which enables the cover to maintain its strength during long-term use and improves the service life of the entire cover. Attached Figure Description
[0022] Figure 1 This is a first structural diagram of a high-sealing automotive headlight sealing cover according to the present invention.
[0023] Figure 2 This is a second structural diagram of a high-sealing automotive headlight sealing cover according to the present invention;
[0024] Figure 3 This is a structural diagram of the rear cover body of a high-sealing automotive headlight sealing rear cover according to the present invention.
[0025] Figure 4 This is a structural diagram of the sealing component in the sealing rear cover of a high-sealing automotive headlight according to this utility model.
[0026] In the diagram: 1. Back cover body; 11. First step; 12. Second step; 13. Drive plate; 14. Reinforcing plate; 15. L-shaped locking block; 16. Sealing groove; 17. Limiting block; 18. Sealing ring; 19. Corner block; 2. Sealing assembly; 21. Mounting ring; 22. Slip ring; 23. Spring. Detailed Implementation
[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0028] like Figures 1-3As shown, a high-sealing automotive headlight sealing cover includes a cover body 1. The cover body 1 contains a first step 11 and a second step 12, which are integrally stacked. Multiple drive plates 13 are equidistantly arranged along the circumferential direction of the outer arc wall of the first step 11, and the bottoms of the drive plates 13 are fixedly connected to the surface of the second step 12, forming an integral structure. This facilitates the use of the multiple drive plates 13 to rotate and lock the entire cover body 1, and also allows the drive plates 13 to reinforce the connection between the first step 11 and the second step 12, increasing strength. Multiple drive plates 13 are uniformly fixedly connected along the circumferential direction at the bends of the inner wall of the first step 11. Each corner block 19 allows for reinforcement of the bends in the first step 11, enhancing its strength during use and preventing impact damage. Multiple reinforcing plates 14 are equidistantly arranged along the circumference of the outer arc wall of the first step 11, with the reinforcing plates 14 and driving plates 13 interspersed. The bottoms of the reinforcing plates 14 are fixedly connected to the surface of the second step 12, forming an integrated structure. This facilitates reinforcement of the connection between the first step 11 and the second step 12 using multiple reinforcing plates 14, thereby improving the overall strength of the rear cover body 1 and preventing cracking at the connection points during prolonged use.
[0029] like Figures 1-4 As shown, a sealing groove 16 is provided on the end face of the second step 12 near the outer wall, and a sealing ring 18 is fitted inside the sealing groove 16 to seal the connection between the second step 12 and the outside. Multiple L-shaped locking blocks 15 are fixedly connected circumferentially along the outer arc edge of the second step 12, so that when the rear cover body 1 is installed, the L-shaped locking blocks 15 can be engaged with the locking slot at the car headlight during rotation, thereby achieving the installation and fixation of the rear cover body 1. Multiple limiting blocks 17 are evenly fixedly connected circumferentially on the end face of the sealing groove 16, facilitating the use of multiple limiting blocks 17 to limit the position of the sealing ring 18 inside the sealing groove 16. To improve the sealing effect during use, the inner wall of the second step 12 is provided with a sealing component 2 to cooperate with the sealing ring 18 to seal the connection when the rear cover body 1 is installed. The sealing component 2 includes a mounting ring 21, a slip ring 22 and a spring 23. The two ends of the spring 23 are fixedly connected to the mounting ring 21 and the slip ring 22 respectively, and the outer wall of the slip ring 22 is smoothly fitted to the inner wall of the second step 12. When the rear cover is tightened by the knob, the car connecting parts will squeeze the sealing component 2, thereby using the return elasticity of the internal spring 23 to make the sealing component 2 tightly press against the gap at the connection, ensuring the sealing performance during use.
[0030] In use, the rear cover body 1 is first aligned with the sealing installation location of the car headlight. The rear cover body 1 is rotated by the drive plate 13, causing the external L-shaped locking block 15 to engage with the locking groove at the car headlight, thereby fixing the rear cover body 1 in place. At the same time, the car connecting parts will compress the sealing component 2, thereby utilizing the return elasticity of the internal spring 23 to ensure that the sealing component 2 tightly abuts the gap at the connection, guaranteeing the sealing performance during use. This, together with the sealing ring 18, achieves multiple sealing effects.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-sealing automotive headlight sealing cover, comprising a cover body (1), characterized in that: The rear cover body (1) is provided with a first step (11) and a second step (12), and the first step (11) and the second step (12) are stacked together as a whole; A sealing groove (16) is provided on the end face of the second step (12) near the outer wall, and a sealing ring (18) is fitted inside the sealing groove (16) to seal the connection between the second step (12) and the outside. A sealing component (2) is provided on the inner wall of the second step (12) to cooperate with the sealing ring (18) to seal the connection when the rear cover body (1) is installed.
2. The high-sealing automotive headlight sealing cover according to claim 1, characterized in that: Multiple drive plates (13) are equidistantly arranged on the outer arc wall of the first step (11) in the circumferential direction, and the bottom of the multiple drive plates (13) is fixedly connected to the surface of the second step (12) to form an integral arrangement.
3. The high-sealing automotive headlight sealing cover according to claim 2, characterized in that: The outer arc wall of the first step (11) is provided with multiple reinforcing plates (14) arranged at equal intervals in the circumferential direction, and the multiple reinforcing plates (14) and multiple driving plates (13) are arranged alternately. At the same time, the bottom of the multiple reinforcing plates (14) is fixedly connected to the surface of the second step (12) to form an integral arrangement.
4. The high-sealing automotive headlight sealing cover according to claim 3, characterized in that: Multiple L-shaped blocks (15) are fixedly connected in the circumferential direction at the outer arc wall edge of the second step (12).
5. The high-sealing automotive headlight sealing cover according to claim 1, characterized in that: The end face of the sealing groove (16) is uniformly fixedly connected with multiple limiting blocks (17) in the circumferential direction.
6. The high-sealing automotive headlight sealing cover according to claim 1, characterized in that: The inner wall of the first step (11) is uniformly fixed with multiple corner blocks (19) in the circumferential direction at the bend.
7. The high-sealing automotive headlight sealing cover according to claim 1, characterized in that: The sealing assembly (2) includes a mounting ring (21), a slip ring (22) and a spring (23). The two ends of the spring (23) are fixedly connected to the mounting ring (21) and the slip ring (22) respectively, and the outer wall of the slip ring (22) is smoothly fitted to the inner wall of the second step (12).