Waterproof cap and automobile

Abstract

The utility model relates to the technical field of automobile sealing parts, in particular to a waterproof cap and an automobile, the waterproof cap comprises a waterproof cap main body, a first sealing part and a second sealing part connected with the first sealing part, the waterproof cap main body is cylindrical, and a through hole is formed in the center of the waterproof cap main body; the side surface of the top of the waterproof cap main body is connected with the second sealing part, the first sealing part and the second sealing part are mutually inclined, and the first sealing part and the second sealing part jointly form a first sealing groove. A multi-stage sealing structure is arranged, and negative pressure is formed in the waterproof cap, so that the sealing effect is improved, and water is prevented from entering the carriage.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive sealing parts, and more specifically, to a waterproof cap and an automobile. Background Technology

[0002] Traditional car rear spoilers are relatively small and can be directly fixed to the top of the trunk panel. However, some models require an outward-extending rear spoiler due to design requirements. In this case, the spoiler occupies part of the rear window. To prevent the spoiler from vibrating during driving, holes need to be drilled in the rear window glass, and bolts are then inserted through the glass to secure the spoiler to the trunk panel.

[0003] The rear windshield has clearance bolt holes to allow the fixing bolts to pass through smoothly, connecting the rear spoiler to the rear trunk sheet metal. However, due to the presence of these clearance bolt holes, external water can flow directly into the passenger compartment through the gap, necessitating the design of a sealing structure. Porous foam, with its high compressibility, can address the issue of large dimensional tolerances in the rear trunk sheet metal and accommodate the irregular curved surface of the rear windshield; therefore, it is commonly used in current technology for sealing this area. However, in practical applications, when the vehicle is exposed to high temperatures and extreme low temperatures, the plastic structure on the rear spoiler undergoes thermal expansion and contraction. The poor resilience of the porous foam leads to seal failure, creating an unobstructed channel between the rear spoiler and the rear trunk sheet metal, making the passenger compartment susceptible to water ingress. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing porous foam seals, which have poor resilience, leading to seal failure and easy water ingress into the vehicle compartment. This invention provides a waterproof cap that forms a multi-stage seal between the rear spoiler and the rear trunk sheet metal parts, and creates negative pressure inside the waterproof cap, thereby improving the sealing effect and preventing water ingress.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A waterproof cap is provided, comprising a waterproof cap body, a first sealing part, and a second sealing part connected to the first sealing part. The waterproof cap body is cylindrical and has a through hole in the center. The top side of the waterproof cap body is connected to the second sealing part. The first sealing part and the second sealing part are inclined to each other and together form a first sealing groove.

[0007] The waterproof cap of this utility model has a through hole in the center of the cylindrical waterproof cap body, which facilitates the passage of fasteners such as bolts without affecting the normal assembly and tightening process. The first sealing part and the second sealing part, which are inclined to each other, together form a first sealing groove. During the assembly process, due to the compression of the rear spoiler and the sheet metal parts of the rear trunk, the air in the first sealing groove will be squeezed out, resulting in the external air pressure being greater than the air pressure in the first sealing groove. This creates a negative pressure in the first sealing groove, and finally forms a stable sealing structure on the side of the waterproof cap, preventing external water from entering.

[0008] Furthermore, it also includes a third sealing part connected between the second sealing part and the waterproof cap body. The third sealing part is inclined to the second sealing part, and the second sealing part and the third sealing part together form a second sealing groove. The inclined second sealing part and the third sealing part together form a second sealing groove. Under pressure, the air in the second sealing groove is squeezed out, thereby becoming a negative pressure state. Together with the first sealing groove, it forms a multi-stage sealing structure, further improving the sealing performance of the waterproof cap.

[0009] Furthermore, it also includes a fourth sealing part disposed at the bottom of the waterproof cap body. The angle between the fourth sealing part and the waterproof cap body is an acute angle, and together with the waterproof cap body, they form a third sealing groove. The acute angle between the fourth sealing part and the waterproof cap body, and the third sealing groove between the fourth sealing part and the waterproof cap body, provides multiple layers of protection for the waterproof sealing structure between the rear spoiler and the rear trunk sheet metal parts, preventing water from entering the vehicle compartment.

[0010] Furthermore, the bottom of the first sealing part is provided with a first abutting surface, and the angle between the first abutting surface and the axis of the main body of the waterproof cap is an acute angle. The acute angle between the first abutting surface and the axis of the main body of the waterproof cap will form a sliding sealing edge on the outermost side during the assembly process, thereby releasing the compressive force during the assembly process and preventing the rear windshield from being crushed.

[0011] Furthermore, the top of the waterproof cap body is provided with a second abutment surface, which is connected to the third sealing part and perpendicular to the axis of the waterproof cap body. During assembly, the second abutment surface abuts against the tail spoiler at the top of the waterproof cap, providing a stable compression position at the center of the waterproof cap body, ensuring that the waterproof cap body is subjected to uniform force during assembly and preventing local warping or denting.

[0012] Furthermore, the height of the connection between the first sealing part and the second sealing part is greater than the height of the second abutment surface. The height of the second abutment surface is less than the height of the connection between the first sealing part and the second sealing part. Therefore, during the assembly process, the connection between the first sealing part and the second sealing part is compressed first and extends outward, thereby expelling internal air and forming a stable seal.

[0013] This utility model also provides a car, including the aforementioned waterproof cap, rear spoiler, rear window glass, and rear trunk sheet metal part. The rear spoiler is provided with a bolt mounting part, and the rear window glass is provided with a bolt avoidance hole. The waterproof cap is fitted onto the bolt mounting part and passes through the bolt avoidance hole to abut against the rear trunk sheet metal part. The connection between the first sealing part and the second sealing part abuts against the rear spoiler.

[0014] In this invention, a waterproof cap is first installed in the bolt clearance hole on the rear windshield, allowing it to pass through the bolt clearance hole and abut against the rear trunk sheet metal. Then, the bolt mounting part on the rear spoiler is aligned with the waterproof cap for assembly. After assembly, the waterproof cap is fitted onto the bolt mounting part, and the connection between the first sealing part and the second sealing part abuts against the rear spoiler to form a first sealing groove, which can improve the sealing effect and prevent external water from flowing into the passenger compartment through the gap between the rear spoiler and the rear windshield.

[0015] Furthermore, the waterproof cap also includes a third sealing part connected between the second sealing part and the main body of the waterproof cap. The third sealing part is inclined to the second sealing part, and the second sealing part and the third sealing part together form a second sealing groove. The connection between the second sealing part and the third sealing part abuts against the rear windshield. During assembly, the rear spoiler and the rear trunk sheet metal parts compress the waterproof cap, causing the connection between the second sealing part and the third sealing part to abut against the rear windshield, thereby creating a second sealing groove between the rear spoiler and the rear windshield, improving the overall waterproof sealing effect.

[0016] Furthermore, the waterproof cap also includes a fourth sealing portion disposed at the bottom of the waterproof cap body. The angle between the fourth sealing portion and the waterproof cap body is an acute angle, and together with the waterproof cap body, they form a third sealing groove. The fourth sealing portion abuts against the rear windshield. The abutment of the fourth sealing portion against the rear windshield forms a third sealing groove between the waterproof cap and the rear windshield, which, in conjunction with the first sealing groove, forms a multi-level sealing structure.

[0017] Furthermore, the waterproof cap and the bolt clearance hole are interference-fitted, while the through hole and the bolt mounting part are clearance-fitted. The interference fit between the waterproof cap and the bolt clearance hole ensures a stable sealing effect, while the clearance fit between the through hole inside the waterproof cap and the bolt mounting part allows for quick assembly of the tail spoiler.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The waterproof cap has a multi-stage sealing structure and creates negative pressure inside the waterproof cap, thereby improving the sealing effect and preventing water from entering the vehicle body;

[0020] 2. It can distribute the assembly pressure and will not damage the rear windshield;

[0021] 3. Excellent assembly effect; it can be quickly installed between the rear spoiler and the rear tail box sheet metal parts, improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a front view of the waterproof cap;

[0023] Figure 2 This is a top view of the waterproof cap;

[0024] Figure 3 for Figure 2 Sectional view at position AA;

[0025] Figure 4 This is a side view of the waterproof cap;

[0026] Figure 5 A side view of the waterproof cap from another perspective;

[0027] Figure 6 This is a schematic diagram showing the assembly state of the waterproof cap;

[0028] Figure 7 for Figure 6 A magnified view of the area at position B in the middle.

[0029] In the attached diagram: 100, waterproof cap body; 110, first sealing part; 120, second sealing part; 130, third sealing part; 140, fourth sealing part; 150, first sealing groove; 160, second sealing groove; 170, third sealing groove; 180, first abutting surface; 190, second abutting surface; 200, through hole; 210, guide chamfer; 300, rear spoiler; 310, bolt mounting part; 400, rear windshield glass; 410, bolt clearance hole; 500, rear trunk sheet metal part. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Example 1

[0033] This embodiment is the first embodiment of a waterproof cap, including a waterproof cap body 100, a first sealing part 110, and a second sealing part 120 connected to the first sealing part 110. The waterproof cap body 100 is cylindrical and has a through hole 200 in the center. The top side of the waterproof cap body 100 is connected to the second sealing part 120. The first sealing part 110 and the second sealing part 120 are inclined to each other, and the first sealing part 110 and the second sealing part 120 together form a first sealing groove 150.

[0034] like Figure 1 , Figure 3 As shown, the waterproof cap of this utility model has a through hole 200 in the center of the cylindrical waterproof cap body 100, which facilitates the passage of fasteners such as bolts without affecting the normal assembly and tightening process. The first sealing part 110 and the second sealing part 120, which are inclined to each other, together form the first sealing groove 150. During the assembly process, due to the compression between the rear spoiler 300 and the rear tail box sheet metal part 500, the air in the first sealing groove 150 will be squeezed out, resulting in the external air pressure being greater than the air pressure in the first sealing groove 150. This creates a negative pressure in the first sealing groove 150, and finally forms a stable sealing structure on the side of the waterproof cap to prevent external water from entering.

[0035] like Figure 2 , Figure 3 As shown, the waterproof cap in this embodiment also includes a third sealing part 130 connected between the second sealing part 120 and the waterproof cap body 100. The third sealing part 130 is inclined to the second sealing part 120, and the second sealing part 120 and the third sealing part 130 together form a second sealing groove 160. The inclined second sealing part 120 and the third sealing part 130 together form the second sealing groove 160. Under pressure, the air in the second sealing groove 160 is squeezed out, thereby becoming a negative pressure state, which together with the first sealing groove 150 forms a multi-stage sealing structure, further improving the sealing performance of the waterproof cap.

[0036] The waterproof cap in this embodiment also includes a fourth sealing portion 140 disposed at the bottom of the waterproof cap body 100. The angle between the fourth sealing portion 140 and the waterproof cap body 100 is an acute angle, and together with the waterproof cap body 100, they form a third sealing groove 170. Figure 5 As shown, an inclined fourth sealing part 140 is provided at the bottom of the waterproof cap body 100. The third sealing groove 170 between the fourth sealing part 140 and the waterproof cap body 100 provides multiple layers of protection for the waterproof sealing structure between the rear spoiler 300 and the rear trunk sheet metal part 500, preventing water from entering the vehicle compartment.

[0037] Example 2

[0038] This embodiment is the second embodiment of the waterproof cap. This embodiment is similar to the first embodiment, except that, as shown in the example... Figure 3 As shown, the bottom of the first sealing part 110 is provided with a first abutting surface 180, and the angle between the first abutting surface 180 and the axis of the waterproof cap body 100 is an acute angle. The acute angle between the first abutting surface 180 and the axis of the waterproof cap body 100 will form a sliding sealing edge on the outermost side during the assembly process, thereby releasing the compressive force during the assembly process and preventing the rear windshield glass 400 from being crushed.

[0039] like Figure 3 As shown, the top of the waterproof cap body 100 is provided with a second abutment surface 190, which is connected to the third sealing part 130 and is perpendicular to the axis of the waterproof cap body 100. During assembly, the second abutment surface 190 abuts against the tail spoiler 300 on the top of the waterproof cap, providing a stable compression position at the center of the waterproof cap body 100, ensuring that the waterproof cap body 100 is subjected to uniform force during assembly and preventing local warping or denting.

[0040] The height at the connection between the first sealing part 110 and the second sealing part 120 is greater than the height of the second abutment surface 190. The height of the second abutment surface 190 is less than the height at the connection between the first sealing part 110 and the second sealing part 120. Therefore, during the assembly process, the connection between the first sealing part 110 and the second sealing part 120 is squeezed first and extends outward, thereby expelling internal air and forming a stable seal.

[0041] In this embodiment, the waterproof cap is a one-piece structure made of elastic material, preferably rubber. Compared to the porous foam used in traditional seals, rubber has better resilience, can adapt to the deformation of the rear spoiler 300 during use, and provides a superior sealing effect. The one-piece waterproof cap, made of elastic material, adapts to the dimensional changes of the rear spoiler 300 during use through the resilience of the elastic material, while the one-piece structure prevents gaps from forming inside the waterproof cap, thus avoiding leakage.

[0042] Example 3

[0043] This embodiment is the first embodiment of a car, such as Figure 6 As shown, it includes a waterproof cap, a rear spoiler 300, a rear windshield 400, and a rear trunk sheet metal part 500. The rear spoiler 300 is provided with a bolt mounting part 310, and the rear windshield 400 is provided with a bolt clearance hole 410. The waterproof cap is fitted onto the bolt mounting part 310 and passes through the bolt clearance hole 410 to abut against the rear trunk sheet metal part 500. The connection between the first sealing part 110 and the second sealing part 120 abuts against the rear spoiler 300.

[0044] In this invention, the waterproof cap is first installed in the bolt clearance hole 410 on the rear windshield 400, allowing it to pass through the bolt clearance hole 410 and abut against the rear trunk sheet metal part 500. Then, the bolt mounting part 310 on the rear spoiler 300 is aligned with the waterproof cap for assembly. After assembly, the waterproof cap is fitted onto the bolt mounting part 310. The connection between the first sealing part 110 and the second sealing part 120 abuts against the rear spoiler 300, forming a first sealing groove 150, which can improve the sealing effect and prevent external water from flowing into the passenger compartment through the gap between the rear spoiler 300 and the rear windshield 400.

[0045] like Figure 7 As shown, the waterproof cap in this embodiment also includes a third sealing part 130 connected between the second sealing part 120 and the waterproof cap body 100. The third sealing part 130 is inclined to the second sealing part 120, and the second sealing part 120 and the third sealing part 130 together form a second sealing groove 160. The connection between the second sealing part 120 and the third sealing part 130 abuts against the rear windshield 400. During assembly, the rear spoiler 300 and the rear trunk sheet metal part 500 compress the waterproof cap, causing the connection between the second sealing part 120 and the third sealing part 130 to abut against the rear windshield 400, thereby creating a second sealing groove 160 between the rear spoiler 300 and the rear windshield 400, improving the overall waterproof sealing effect.

[0046] The waterproof cap also includes a fourth sealing portion 140 disposed at the bottom of the waterproof cap body 100. The angle between the fourth sealing portion 140 and the waterproof cap body 100 is an acute angle, and together with the waterproof cap body 100, they form a third sealing groove 170. The fourth sealing portion 140 abuts against the rear windshield 400. The abutment of the fourth sealing portion 140 against the rear windshield 400 forms a third sealing groove 170 between the waterproof cap and the rear windshield 400, which cooperates with the first sealing groove 150 to form a multi-level sealing structure.

[0047] The waterproof cap and the bolt clearance hole 410 are interference fits, while the through hole 200 and the bolt mounting part 310 are clearance fits. The interference fit between the waterproof cap and the bolt clearance hole 410 ensures a stable sealing effect, while the clearance fit between the through hole 200 inside the waterproof cap and the bolt mounting part 310 allows for quick assembly of the tail spoiler 300.

[0048] The top of the through hole 200 is provided with a guide chamfer 210. The guide chamfer 210 on the top of the through hole 200 can guide the bolt mounting part 310 during the assembly process, making it easier to quickly align the bolt mounting part 310 with the waterproof cap and improving the assembly efficiency.

[0049] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A waterproof cap, characterized in that, The device includes a waterproof cap body (100), a first sealing part (110), and a second sealing part (120) connected to the first sealing part (110). The waterproof cap body (100) is cylindrical and has a through hole (200) in the center. The top side of the waterproof cap body (100) is connected to the second sealing part (120). The first sealing part (110) and the second sealing part (120) are inclined to each other and together form a first sealing groove (150).

2. The waterproof cap according to claim 1, characterized in that, It also includes a third sealing part (130) connected between the second sealing part (120) and the waterproof cap body (100), the third sealing part (130) being inclined to the second sealing part (120), and the second sealing part (120) and the third sealing part (130) together forming a second sealing groove (160).

3. The waterproof cap according to claim 1, characterized in that, It also includes a fourth sealing part (140) disposed at the bottom of the waterproof cap body (100), wherein the angle between the fourth sealing part (140) and the waterproof cap body (100) is an acute angle, and together with the waterproof cap body (100) forms a third sealing groove (170).

4. The waterproof cap according to claim 1, characterized in that, The bottom of the first sealing part (110) is provided with a first abutting surface (180), and the included angle between the first abutting surface (180) and the axis of the waterproof cap body (100) is an acute angle.

5. The waterproof cap according to claim 2, characterized in that, The top of the waterproof cap body (100) is provided with a second abutment surface (190), which is connected to the third sealing part (130) and is perpendicular to the axis of the waterproof cap body (100).

6. The waterproof cap according to claim 5, characterized in that, The height at the connection between the first sealing part (110) and the second sealing part (120) is greater than the height of the second abutment surface (190).

7. A car, characterized in that, The device includes a waterproof cap, a rear spoiler (300), a rear windshield (400), and a rear trunk sheet metal part (500) as described in any one of claims 1 to 6. The rear spoiler (300) is provided with a bolt mounting part (310), and the rear windshield (400) is provided with a bolt clearance hole (410). The waterproof cap is fitted onto the bolt mounting part (310) and passes through the bolt clearance hole (410) to abut against the rear trunk sheet metal part (500). The connection between the first sealing part (110) and the second sealing part (120) abuts against the rear spoiler (300).

8. The automobile according to claim 7, characterized in that, The waterproof cap further includes a third sealing part (130) connected between the second sealing part (120) and the waterproof cap body (100). The third sealing part (130) is inclined to the second sealing part (120). The second sealing part (120) and the third sealing part (130) together form a second sealing groove (160). The connection between the second sealing part (120) and the third sealing part (130) abuts against the rear windshield glass (400).

9. The automobile according to claim 7, characterized in that, The waterproof cap also includes a fourth sealing part (140) disposed at the bottom of the waterproof cap body (100). The angle between the fourth sealing part (140) and the waterproof cap body (100) is an acute angle, and together with the waterproof cap body (100), they form a third sealing groove (170). The fourth sealing part (140) abuts against the rear windshield glass (400).

10. The automobile according to claim 7, characterized in that, The waterproof cap and the bolt clearance hole (410) are interference fit, and the through hole (200) and the bolt mounting part (310) are clearance fit.

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