Car lamp sealing installation structure

Abstract

The utility model discloses a car lamp sealing installation structure which comprises a shell and a lampshade which are both provided with openings, the opening edge of the shell and the opening edge of the lampshade are connected in a clamped mode, and a rubber gasket is embedded between the shell and the lampshade. Four L-shaped clamps are arranged on the edge of the outer side, connected with the lampshade, of the shell, a trapezoidal groove is formed in the inner side of each L-shaped clamp, and the heads and the tails of the four L-shaped clamps are locked through screws and nuts. On the basis that no sealant is adopted, the long-term stability of the sealing structure is effectively improved, the sealing structure is environment-friendly and durable, the sealing process is simplified, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lamp sealing technology, and in particular to a vehicle lamp sealing installation structure. Background Technology

[0002] Currently, in existing technologies, vehicle lights, as a core component for safe vehicle operation, play a crucial role in road illumination and traffic signal transmission in low-light environments. Typically, the headlight housing and lens are installed using sealant and a sealing groove to provide dustproof, waterproof, and anti-fog functions. However, this traditional sealing technology has the following drawbacks: 1. Maintainability issues: Repairing or replacing the lens requires removing the old sealant and reapplying it, a time-consuming process that can easily damage the housing or lens. 2. Insufficient environmental adaptability: The different coefficients of thermal expansion between the lens and housing materials can cause the sealant layer to crack and fail over time due to temperature changes, leading to headlight malfunction. 3. Chemical pollution: Waste adhesives are difficult to degrade, and some adhesives contain heavy metals or toxic components, impacting the production environment and worker health, which is inconsistent with green manufacturing practices. 4. Material durability defects: The adhesive lifespan is usually shorter than the lifespan of the lamp cover or the lamp itself, requiring frequent maintenance and replacement; when the lamp is exposed to high temperatures, ultraviolet rays (such as direct sunlight), rain, or chemical corrosion (such as car wash detergent) for a long time, the sealant is prone to hardening, cracking, or loss of elasticity, leading to seal failure. 5. Complex installation process: The sealant requires a certain curing time, affecting production efficiency; the adhesive layer thickness requires high precision, and the amount of adhesive applied must be strictly controlled, necessitating the use of high-precision metering equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vehicle lamp sealing installation structure that effectively improves the long-term stability of the sealing structure and simplifies the sealing process without using sealant.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A vehicle lamp sealing mounting structure includes a housing and a lamp cover, both having openings, wherein the opening edge of the housing engages with the opening edge of the lamp cover and a rubber gasket is embedded between them.

[0006] The outer edge where the housing and the lampshade meet is provided with four L-shaped clamps. Each L-shaped clamp has a trapezoidal groove on its inner side. The four L-shaped clamps are locked together by screws and nuts.

[0007] Furthermore, the outer edge of the opening of the housing is provided with a first wedge-shaped flange, and the outer edge of the opening of the lampshade is provided with a second wedge-shaped flange. The first wedge-shaped flange and the second wedge-shaped flange are closely attached to each other, and the outer wedge-shaped surfaces of the first wedge-shaped flange and the second wedge-shaped flange are adapted to the inner walls of the trapezoidal grooves of the four L-shaped clamps.

[0008] Furthermore, the outer wedge-shaped surfaces of the first and second wedge-shaped flanges are inclined guide surfaces at 15°.

[0009] Furthermore, the first wedge-shaped flange has multiple first sealing grooves on the side near the lamp cover, and the second wedge-shaped flange has multiple second sealing grooves on the side near the housing. Both sides of the rubber gasket are formed with sealing protrusions corresponding to the number of first and second sealing grooves. The rubber gasket is tightly attached between the first and second wedge-shaped flanges and seals with the first and second sealing grooves through the sealing protrusions.

[0010] Furthermore, both the inner and outer rings of the rubber gasket are formed with sealing extension pieces, which are tightly attached to the inner and outer ends of the second wedge-shaped flange.

[0011] Furthermore, the inner edge of the opening of the housing is provided with a snap-fit ​​structure, and the inner edge of the opening of the lampshade is provided with a snap-fit ​​groove, and the snap-fit ​​structure engages with the snap-fit ​​groove.

[0012] Furthermore, locking plates are provided at both ends of the L-shaped clamp, and the screws and nuts are locked by passing through the locking plates of adjacent L-shaped clamps.

[0013] Furthermore, the locking plate has a locking hole.

[0014] Furthermore, the cross-sections of the first sealing groove, the second sealing groove, and the sealing protrusion are all arc-shaped.

[0015] Furthermore, the number of the sealing protrusions is four.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. This utility model abandons the traditional sealing method of sealant, and instead designs a snap-fit ​​fit between the opening edges of the headlight housing and the lamp cover, combined with a rubber gasket for sealing. Four L-shaped clamps on the outside, along with screws and nuts, are used to lock the entire assembly in place, ensuring a tight fit between the housing and the lamp cover to achieve a sealed effect. This not only guarantees a good seal at the connection, preventing water leakage, dust, and foreign objects, but also improves the long-term stability of the sealing structure, making it resistant to corrosion from ultraviolet rays, ozone, road salts, oil, and other chemicals, thus avoiding the seal failure caused by rapid aging and degradation of traditional sealing methods.

[0018] 2. This utility model does not use sealant, which can avoid VOC pollution, balance cost and environmental protection, reduce maintenance costs, and reduce the scrapping of lamp body due to secondary repairs caused by traditional sealing methods.

[0019] 3. This utility model adopts a mechanical seal structure that is easy to install and disassemble, which can fill the small tolerances between vehicle lamp components, reduce assembly difficulty, and facilitate resealing after disassembly and maintenance. Using a rubber gasket as one of the sealing components can absorb mechanical vibration, buffer impact, protect internal precision components, and reduce loosening or damage caused by continuous vibration.

[0020] 4. This utility model has a trapezoidal groove on the inner side of the L-shaped clamp, and a first wedge-shaped flange and a second wedge-shaped flange are respectively designed and formed on the outer edge of the opening of the housing and the lampshade. The inclined guide surfaces on the outer sides of the first wedge-shaped flange and the second wedge-shaped flange are adapted to the trapezoidal groove on the inner side of the L-shaped clamp. When the whole is locked, the housing, rubber gasket and lampshade can be forced to compress inward, thereby achieving radial sealing, and it is not easy to loosen or fall off, and the locking effect is better.

[0021] 5. This utility model has multiple sealing protrusions designed and formed on the surface of the rubber gasket, and multiple first sealing grooves and second sealing grooves respectively opened on one side of the first wedge flange and the second wedge flange, which are adapted to the multiple sealing protrusions, so that the sealing effect is better and the locking is more secure when the seal is tight. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present utility model;

[0023] Figure 2 This is a front view schematic diagram of an embodiment of the present utility model;

[0024] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of section AA;

[0025] Figure 4 for Figure 3 Enlarged structural diagram of the middle M section;

[0026] Figure 5 This is a partial structural exploded view of an embodiment of the present utility model;

[0027] Figure 6 for Figure 5 Front view diagram under the current state;

[0028] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of section DD;

[0029] Figure 8 for Figure 7Enlarged structural diagram of the middle M section;

[0030] Among them, 1. housing; 10. first wedge-shaped flange; 101. first sealing groove; 11. snap-fit ​​structure; 2. lampshade; 20. second wedge-shaped flange; 201. second sealing groove; 21. snap-fit ​​groove; 3. rubber gasket; 300. sealing protrusion; 31. sealing extension piece; 4. L-shaped clamp; 400. trapezoidal groove; 41. locking plate; 42. locking hole; 5. screw; 6. nut. Detailed Implementation

[0031] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0032] like Figure 1-8 As shown, this embodiment provides a vehicle lamp sealing installation structure, which mainly consists of a housing 1, a lamp cover 2, a rubber gasket 3, four L-shaped clamps 4, and four sets of screws 5 and nuts 6. The housing 1 and the lamp cover 2 each have an opening on their adjacent sides, and the housing 1 and the lamp cover 2 are snapped together. The rubber gasket 3 is shaped like a ring to fit the opening and is tightly fitted between the housing 1 and the lamp cover 2, providing a seal. Simultaneously, the four L-shaped clamps 4 form a circle, with their ends touching. Specifically, locking plates 41 are provided at both ends of the L-shaped clamps 4, and locking holes 42 are provided on the locking plates 41. The four L-shaped clamps 4 are tightly fitted to the outside of the opening connection between the housing 1 and the lamp cover 2, and are locked together by screws 5 and nuts 6. That is, the screws 5 and nuts 6 pass through the locking plates 41 of adjacent L-shaped clamps 4 to lock them, thereby forcing the housing 1, the rubber gasket 3, and the lamp cover 2 to compress inward, achieving a radial seal.

[0033] Specifically, in order to improve the long-term stability of the sealing structure and the locking and sealing effect, refer to Figure 3-5 As shown in Figures 7 and 8, in this embodiment, a first wedge-shaped flange 10 is formed on the outer edge of the opening of the housing 1, and a second wedge-shaped flange 20 is formed on the outer edge of the opening of the lampshade 2. Each L-shaped clamp 4 has a trapezoidal groove 400 on its inner side. During assembly, the first wedge-shaped flange 10 and the second wedge-shaped flange 20 are tightly fitted together, and the outer wedge-shaped surfaces of the first wedge-shaped flange 10 and the second wedge-shaped flange 20 are adapted to the inner walls of the trapezoidal grooves 400 of the four L-shaped clamps 4. Furthermore, the outer wedge-shaped surfaces of the first wedge-shaped flange 10 and the second wedge-shaped flange 20 are inclined guide surfaces at 15°, and the corresponding inner wall inclination surface of the trapezoidal groove 400 is also 15°. Thus, by using the outer inclined guide surfaces of the first wedge flange 10 and the second wedge flange 20 to match the inner trapezoidal groove 400 of the L-shaped clamp 4, when the whole is locked, the housing 1, the rubber gasket 3 and the lampshade 2 can be forced to compress inward, thereby achieving radial sealing, and it is not easy to loosen or fall off, resulting in a better locking effect.

[0034] It is worth mentioning that this embodiment abandons the traditional sealing method of sealant, and instead uses a snap-fit ​​design to fit the opening edges of the headlight housing 1 and the lamp cover 2, combined with a rubber gasket 3 for sealing. The entire assembly is then locked in place by four L-shaped clamps 4, screws 5, and nuts 6, ensuring a tight seal between the housing 1 and the lamp cover 2. This not only guarantees a good seal at the connection, preventing water leakage, dust, and foreign objects, but also improves the long-term stability of the sealing structure, making it resistant to corrosion from ultraviolet rays, ozone, road salts, oil, and other chemicals. It avoids the rapid degradation of sealant caused by aging, which leads to seal failure in traditional sealing methods. Furthermore, by eliminating the use of sealant, VOC pollution is avoided, balancing cost and environmental protection, and reducing maintenance costs, thus minimizing the need for secondary repairs that would otherwise require traditional sealing methods.

[0035] Specifically, refer to Figure 4 , 8 As shown, in this embodiment, the inner edge of the opening of the housing 1 is provided with a snap-fit ​​structure 11, and the inner edge of the opening of the lamp cover 2 is provided with a snap-fit ​​groove 21. The snap-fit ​​structure 11 engages with the snap-fit ​​groove 21. This mechanical seal structure, which facilitates installation and disassembly, can fill the small tolerances between the vehicle lamp components, reduce assembly difficulty, and facilitate resealing after disassembly and maintenance. Furthermore, the use of a rubber gasket 3 as one of the sealing components can absorb mechanical vibration, buffer impact, protect internal precision components, and reduce loosening or damage caused by continuous vibration.

[0036] To further enhance the sealing effect and the long-term stability of the structural locking, refer to Figure 8 As shown, in this embodiment, four first sealing grooves 101 are formed on the side of the first wedge-shaped flange 10 near the lampshade 2, and four second sealing grooves 201 are formed on the side of the second wedge-shaped flange 20 near the housing 1. Four sealing protrusions 300 corresponding to the first sealing grooves 101 and second sealing grooves 201 are formed on both sides of the rubber gasket 3. The cross-sections of the first sealing grooves 101, second sealing grooves 201, and sealing protrusions 300 are all arc-shaped. The rubber gasket 3 is tightly attached between the first wedge-shaped flange 10 and the second wedge-shaped flange 20 and is sealed to the first sealing grooves 101 and second sealing grooves 201 through the sealing protrusions 300. Simultaneously, sealing extension pieces 31 are formed on both the inner and outer rings of the rubber gasket 3. During assembly, the sealing extension pieces 31 are tightly attached to the inner and outer ends of the second wedge-shaped flange 20, thus improving the sealing effect and ensuring a more secure lock when tightly fitted.

[0037] In this embodiment, during assembly, the rubber gasket 3 is first placed at the opening of the headlight housing 1, ensuring that its four sealing protrusions 300 are sealed and engaged with the first sealing groove 101, so that their contours match. The inner ring sealing extension 31 of the rubber gasket 3 is fitted onto the snap-fit ​​structure 11 of the headlight housing 1. Then, the contour of the opening of the lampshade 2 is matched with the contour of the headlight housing 1, that is, the first wedge flange 10 and the second wedge flange 20 are fitted together, so that the four sealing protrusions 300 are sealed and engaged with the second sealing groove 201, and the snap-fit ​​groove 21 is used to position and engage with the snap-fit ​​structure 11. Then, Four L-shaped clamps 4 are placed in corresponding positions according to the contour and are sequentially fitted along the circumference of the housing 1, so that the outer inclined guide surfaces of the first wedge flange 10 and the second wedge flange 20 are tightly fitted with the inner trapezoidal groove 400 of the L-shaped clamp 4; finally, screws 5 and nuts 6 are used to tighten and fix them. As the spacing between the four L-shaped clamps 4 is reduced, the housing 1, rubber gasket 3, and lampshade 4 are subjected to inward squeezing force. During the tightening process, the housing 1, rubber gasket 3, and lampshade 2 are forced to compress inward. When the tightening torque reaches the threshold, the rubber gasket 3 is compressed by 30%, achieving radial sealing.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The above specific embodiments further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing mounting structure for vehicle lights, characterized in that: It includes a housing (1) and a lampshade (2) both having openings, wherein the opening edge of the housing (1) is engaged with the opening edge of the lampshade (2) and a rubber gasket (3) is embedded between them. Four L-shaped clamps (4) are provided on the outer edge where the housing (1) and the lampshade (2) meet. Each L-shaped clamp (4) has a trapezoidal groove (400) on its inner side. The four L-shaped clamps (4) are locked together by screws (5) and nuts (6).

2. The vehicle lamp sealing mounting structure according to claim 1, characterized by: The outer edge of the opening of the housing (1) is provided with a first wedge-shaped flange (10), and the outer edge of the opening of the lampshade (2) is provided with a second wedge-shaped flange (20). The first wedge-shaped flange (10) and the second wedge-shaped flange (20) are closely attached to each other, and the outer wedge-shaped surfaces of the first wedge-shaped flange (10) and the second wedge-shaped flange (20) are adapted to the inner wall of the trapezoidal groove (400) of the four L-shaped clamps (4).

3. A vehicle lamp sealing mounting structure according to claim 2, characterized in that: The outer wedge surfaces of the first wedge flange (10) and the second wedge flange (20) are inclined guide surfaces at 15°.

4. The vehicle lamp sealing mounting structure according to claim 2, characterized by: The first wedge-shaped flange (10) has multiple first sealing grooves (101) on the side near the lamp cover (2), and the second wedge-shaped flange (20) has multiple second sealing grooves (201) on the side near the housing (1). Both sides of the rubber gasket (3) are formed with sealing protrusions (300) corresponding to the number of first sealing grooves (101) and second sealing grooves (201). The rubber gasket (3) is tightly attached between the first wedge-shaped flange (10) and the second wedge-shaped flange (20) and is sealed with the first sealing groove (101) and the second sealing groove (201) through the sealing protrusions (300).

5. A vehicle lamp sealing mounting structure according to claim 4, characterized in that: The inner and outer rings of the rubber gasket (3) are both formed with sealing extension pieces (31), which are closely attached to the inner and outer ends of the second wedge-shaped flange (20).

6. The sealed mounting structure for a vehicle lamp according to claim 1, characterized by: The inner edge of the opening of the housing (1) is provided with a snap-fit ​​structure (11), and the inner edge of the opening of the lampshade (2) is provided with a snap-fit ​​groove (21). The snap-fit ​​structure (11) engages with the snap-fit ​​groove (21).

7. The sealed mounting structure for a vehicle lamp according to claim 1, characterized by: The L-shaped clamp (4) is provided with locking plates (41) at both ends. The screw (5) and nut (6) pass through the locking plates (41) of the adjacent L-shaped clamp (4) to lock.

8. A vehicle lamp sealing mounting structure according to claim 7, characterized by: The locking plate (41) has a locking hole (42).

9. The vehicle lamp sealing installation structure according to claim 4, characterized in that: The cross-sections of the first sealing groove (101), the second sealing groove (201), and the sealing protrusion (300) are all arc-shaped.

10. The vehicle lamp sealing mounting structure according to claim 4, characterized by: The number of the sealing protrusions (300) is four.

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