Automobile waterproof sealing gasket

Abstract

A vehicle waterproof sealing gasket, the upper and lower surfaces of which respectively contact the lower surface of the steering column lower guard and the upper surface of the floor sheet metal. A through-hole (number one) for the steering column to pass through is defined in the center of the gasket. A first sealing rib is provided on the upper surface of the gasket around the outer periphery of the bottom of the steering column lower guard. A second sealing rib is provided on the lower surface of the gasket around the outer periphery of a through-hole (number two) defined in the floor sheet metal for the steering column to pass through. A third sealing rib is provided between the gasket's outer edge and the floor sheet metal. A fourth sealing rib is provided on the lower surface of the gasket around the outer periphery of a through-hole (number three) that secures the brim to the floor sheet metal. Multiple cross-grooved water retaining structures are also provided on the upper surface of the gasket, within the area enclosed by the first sealing rib, near the through-hole (number one). This design not only achieves a good waterproof seal at the steering column opening, but also does not affect the normal movement of the steering column.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile interior decoration parts, and particularly relates to an automobile waterproof sealing gasket. Background Art

[0002] A car's waterproof performance is a key indicator of its quality. Poor waterproofing can lead to cabin leaks, severely damaging the car's brand image and potentially leading to quality disputes and customer claims.

[0003] The steering column of a car is used to connect the steering wheel and the steering mechanism of the chassis. It needs to be connected from the inside of the cab to the outside of the cab and must be in contact with the external environment. Good waterproof parts are required here for sealing. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above problems existing in the prior art and to provide a car waterproof sealing gasket capable of achieving waterproof sealing of the car body at the steering column opening.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A car waterproof sealing gasket, wherein a through hole No. 1 is provided in the middle of the sealing gasket for the steering column to pass through;

[0007] The upper and lower surfaces of the sealing gasket are in contact with the lower surface of the steering column lower shield and the upper surface of the floor sheet metal respectively. The steering column lower shield is a cap-shaped structure with two ends open, including a cover body for the steering column to pass through and a brim portion arranged around the bottom circumference of the cover body. The floor sheet metal is provided with a second through hole for the steering column to pass through.

[0008] A first sealing rib is provided on the upper surface of the sealing gasket around the outer circumference of the bottom of the cover body, and a second sealing rib is provided on the lower surface of the sealing gasket around the outer circumference of the second through hole.

[0009] The top of the first sealing rib is in contact with the brim;

[0010] The middle part of the floor sheet metal is a recessed structure, the second through hole is located on the recessed structure, the second sealing rib ring is arranged around the outer circumference of the recessed structure, and the bottom of the second sealing rib ring is in contact with the floor sheet metal.

[0011] A water retaining groove is provided in the middle of the lower surface of the sealing gasket. The water retaining groove is located in the area enclosed by the second sealing rib ring, and the inner wall of the water retaining groove is arranged around the outer circumference of the recessed structure.

[0012] A third sealing rib is provided on the sealing gasket at a position between the outer edge thereof and the floor sheet metal.

[0013] The sealing gasket is provided with a plurality of No. 3 through holes fixedly connected to the brim portion and the floor sheet metal. The No. 3 through holes are located between the second sealing rib ring and the third sealing rib ring. A fourth sealing rib ring is provided on the lower surface of the sealing gasket around the outer circumference of the No. 3 through holes, and the bottom of the fourth sealing rib ring is in contact with the floor sheet metal.

[0014] A plurality of cross-groove water retaining structures are further provided on the upper surface of the sealing gasket. The cross-groove water retaining structures are located in the area enclosed by the first sealing rib ring and are arranged close to the No. 1 through hole.

[0015] The first sealing rib ring, the second sealing rib ring, the third sealing rib ring and the fourth sealing rib ring are all triangular convex rib structures, and the manufacturing materials of the first sealing rib ring, the second sealing rib ring, the third sealing rib ring and the fourth sealing rib ring are all rubber.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The upper and lower surfaces of a vehicle waterproof gasket of the present invention respectively contact the lower surface of the steering column lower shield and the upper surface of the floor sheet metal. A first sealing rib is provided on the upper surface of the gasket around the outer circumference of the bottom of the steering column lower shield, and a second sealing rib is provided on the lower surface of the gasket around the outer circumference of a second through hole in the floor sheet metal through which the steering column passes. This design, by providing corresponding sealing ribs at the joints between the gasket, the steering column lower shield, and the floor sheet metal, achieves a waterproof seal on the vehicle body at the steering column opening. Thus, the present invention achieves a waterproof seal on the vehicle body at the steering column opening.

[0018] 2. A waterproof seal gasket for automobiles according to the present invention is provided with a third sealing rib between its outer edge and the floor sheet metal. A fourth sealing rib is provided on the lower surface of the seal gasket, surrounding the outer periphery of the third through-hole that secures the brim portion to the floor sheet metal. Furthermore, a plurality of cross-shaped sealing ribs are provided on the upper surface of the seal gasket, within the area enclosed by the first sealing rib, near the first through-hole. This design not only further enhances the waterproof seal between the vehicle body and the steering column opening, but also does not affect the normal movement of the steering column. Therefore, the present invention not only further enhances the waterproof seal between the steering column and the vehicle body, but also does not affect the normal movement of the steering column. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is an assembly diagram of the present invention.

[0021] In the figure, the sealing gasket 1, the No. 1 through hole 11, the first sealing rib ring 12, the second sealing rib ring 13, the water retaining groove 14, the inner wall 141, the third sealing rib ring 15, the No. 3 through hole 16, the fourth sealing rib ring 17, the cross groove water retaining structure 18, the steering column lower shield 2, the cover body 21, the brim part 22, the floor sheet metal 3, the No. 2 through hole 31, and the recessed structure 32. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific embodiments.

[0023] See also Figure 1 、 Figure 2 A car waterproof gasket, wherein the middle portion of the gasket 1 is provided with a through hole 11 for the steering column to pass through;

[0024] The upper and lower surfaces of the sealing gasket 1 are in contact with the lower surface of the steering column lower shield 2 and the upper surface of the floor sheet metal 3, respectively. The steering column lower shield 2 is a cap-shaped structure with openings at both ends, including a cover body 21 for the steering column to pass through, and a brim portion 22 arranged around the bottom circumference of the cover body 21. The floor sheet metal 3 is provided with a second through hole 31 for the steering column to pass through.

[0025] A first sealing rib 12 is provided on the upper surface of the sealing gasket 1 around the outer circumference of the bottom of the cover body 21 , and a second sealing rib 13 is provided on the lower surface of the sealing gasket 1 around the outer circumference of the second through hole 31 .

[0026] The top of the first sealing rib 12 is in contact with the brim 22;

[0027] The middle part of the floor sheet metal 3 is a recessed structure 32 , the second through hole 31 is located on the recessed structure 32 , the second sealing rib ring 13 is arranged around the outer circumference of the recessed structure 32 , and the bottom of the second sealing rib ring 13 is in contact with the floor sheet metal 3 .

[0028] A water retaining groove 14 is formed in the middle of the lower surface of the sealing gasket 1 . The water retaining groove 14 is located in the area enclosed by the second sealing rib 13 , and the inner wall 141 of the water retaining groove 14 is arranged around the outer circumference of the recessed structure 32 .

[0029] A third sealing rib 15 is provided on the sealing gasket 1 between its outer edge and the floor sheet metal 3 .

[0030] The sealing gasket 1 is provided with a plurality of No. 3 through holes 16 fixedly connected to the brim portion 22 and the floor sheet metal 3. The No. 3 through holes 16 are located between the second sealing rib ring 13 and the third sealing rib ring 15. A fourth sealing rib ring 17 is provided on the lower surface of the sealing gasket 1 around the outer circumference of the No. 3 through holes 16. The bottom of the fourth sealing rib ring 17 is in contact with the floor sheet metal 3.

[0031] A plurality of cross-groove water retaining structures 18 are further provided on the upper surface of the sealing gasket 1 . The cross-groove water retaining structures 18 are located within the area enclosed by the first sealing rib 12 and are arranged close to the No. 1 through hole 11 .

[0032] The first sealing rib ring 12, the second sealing rib ring 13, the third sealing rib ring 15 and the fourth sealing rib ring 17 are all triangular convex rib structures, and the manufacturing materials of the first sealing rib ring 12, the second sealing rib ring 13, the third sealing rib ring 15 and the fourth sealing rib ring 17 are all rubber.

[0033] The principle of the present invention is described as follows:

[0034] The present invention provides a car waterproof sealing gasket, which has a specific installation method: first, the sealing gasket 1 is placed between the bottom plate sheet metal 3 and the steering column lower shield 2, so that the third through hole 16 on the sealing gasket 1 is aligned with the bottom plate sheet metal 3 and the installation through holes on the brim portion 22, and then self-tapping screws are sequentially passed through the installation through hole on the brim portion 22, the third through hole 16, and the installation through hole on the bottom plate sheet metal 3 to achieve the installation of the steering column lower shield 2 and compress the sealing gasket 1. Since sealing ribs are provided at the connections between the sealing gasket 1 and various components, a good waterproof seal can be achieved between the steering column and the vehicle body after compression, and this method is simple and easy to implement.

[0035] Water retaining groove 14: The present invention provides a water retaining groove 14 in the middle of the lower surface of the sealing gasket 1. The water retaining groove 14 is located in the area enclosed by the second sealing rib ring 13, and the inner wall 141 of the water retaining groove 14 is arranged around the outer circumference of the recessed structure 32. The inner wall 141 of the water retaining groove 14 can effectively prevent water from being poured into the inside of the vehicle body through the No. 2 through hole 31 from the outside of the vehicle body from penetrating into the joint between the sealing gasket 1 and the floor sheet metal 3.

[0036] Cross groove water retaining structure 18: The cross groove water retaining structure 18 of the present invention is preferably set at a position that the steering column on both sides of the No. 1 through hole 11 can reach during the movement. Setting the structure at this position not only achieves waterproof and dustproof at this location when the steering column does not move to this location, but also does not affect the movement of the steering column.

[0037] Example 1:

[0038] See also Figure 1 、 Figure 2, a car waterproof sealing gasket, the upper and lower surfaces of the sealing gasket 1 are in contact with the lower surface of the steering column lower guard 2 and the upper surface of the floor sheet metal 3 respectively, the middle part of the sealing gasket 1 is provided with a first through hole 11 for the steering column to pass through, the steering column lower guard 2 is a cap-shaped structure with openings at both ends, including a cover body 21 for the steering column to pass through, and a brim portion 22 arranged around the bottom circumference of the cover body 21, the middle part of the floor sheet metal 3 is a recessed structure 32, and a second through hole 31 for the steering column to pass through is opened on the recessed structure 32, the upper surface of the sealing gasket 1 is provided with a first sealing rib ring 12 around the outer circumference of the bottom of the cover body 21, and the lower surface of the sealing gasket 1 is provided with a second sealing rib ring around the outer circumference of the recessed structure 32, the bottom of which is in contact with the floor sheet metal 3. A sealing rib 13 is provided on the sealing gasket 1 at a position between its outer edge and the floor sheet metal 3. A plurality of No. 3 through holes 16 are opened on the sealing gasket 1 and fixedly connected to the brim portion 22 and the floor sheet metal 3. The No. 3 through holes 16 are located between the second sealing rib 13 and the third sealing rib 15. A fourth sealing rib 17 is provided on the lower surface of the sealing gasket 1 around the outer circumference of the No. 3 through holes 16. The bottom of the fourth sealing rib 17 is in contact with the floor sheet metal 3. The first sealing rib 12, the second sealing rib 13, the third sealing rib 15, and the fourth sealing rib 17 are all triangular convex rib structures, and the manufacturing materials of the first sealing rib 12, the second sealing rib 13, the third sealing rib 15, and the fourth sealing rib 17 are all rubber.

[0039] Example 2:

[0040] The difference from the structure described in Example 1 is that:

[0041] A water retaining groove 14 is formed in the middle of the lower surface of the sealing gasket 1 . The water retaining groove 14 is located in the area enclosed by the second sealing rib 13 , and the inner wall 141 of the water retaining groove 14 is arranged around the outer circumference of the recessed structure 32 .

[0042] Example 3:

[0043] The difference from the structure described in Example 1 is that:

[0044] A plurality of cross-groove water retaining structures 18 are further provided on the upper surface of the sealing gasket 1. The cross-groove water retaining structures 18 are located in the area enclosed by the first sealing rib 12 and are arranged close to the No. 1 through hole 11. The manufacturing material of the cross-groove water retaining structures 18 is rubber.

Claims

1. A car waterproof gasket, wherein the middle portion of the gasket (1) is provided with a through hole (11) for the steering column to pass through, characterized in that: The upper and lower surfaces of the sealing gasket (1) are in contact with the lower surface of the steering column lower shield (2) and the upper surface of the floor sheet metal (3), respectively. The steering column lower shield (2) is a cap-shaped structure with two ends open, including a cover body (21) for the steering column to pass through, and a brim portion (22) arranged around the bottom circumference of the cover body (21). The floor sheet metal (3) is provided with a second through hole (31) for the steering column to pass through. A first sealing rib ring (12) is provided on the upper surface of the sealing gasket (1) around the outer circumference of the bottom of the cover body (21), and a second sealing rib ring (13) is provided on the lower surface of the sealing gasket (1) around the outer circumference of the second through hole (31); A water retaining groove (14) is provided in the middle of the lower surface of the sealing gasket (1), the water retaining groove (14) is located in the area enclosed by the second sealing rib ring (13), and the inner wall (141) of the water retaining groove (14) is arranged around the outer circumference of the recessed structure (32); A third sealing rib ring (15) is provided on the sealing gasket (1) at a position between the outer edge thereof and the floor sheet metal (3); The sealing gasket (1) is provided with a plurality of No. 3 through holes (16) fixedly connected to the brim portion (22) and the floor sheet metal (3), the No. 3 through holes (16) being located between the second sealing rib ring (13) and the third sealing rib ring (15), and a fourth sealing rib ring (17) is provided on the lower surface of the sealing gasket (1) around the outer circumference of the No. 3 through holes (16), and the bottom of the fourth sealing rib ring (17) is in contact with the floor sheet metal (3); A plurality of cross-groove water retaining structures (18) are also provided on the upper surface of the sealing gasket (1), and the cross-groove water retaining structures (18) are located within the area enclosed by the first sealing rib ring (12) and are arranged close to the No. 1 through hole (11).

2. The automotive waterproof sealing gasket according to claim 1, characterized in that: The top of the first sealing rib (12) is in contact with the brim portion (22); The middle portion of the floor sheet metal (3) is a recessed structure (32), the second through hole (31) is located on the recessed structure (32), the second sealing rib ring (13) is arranged around the outer circumference of the recessed structure (32), and the bottom of the second sealing rib ring (13) is in contact with the floor sheet metal (3).

3. The automotive waterproof sealing gasket according to claim 1, characterized in that: The first sealing rib ring (12), the second sealing rib ring (13), the third sealing rib ring (15), and the fourth sealing rib ring (17) are all triangular convex rib structures, and the first sealing rib ring (12), the second sealing rib ring (13), the third sealing rib ring (15), and the fourth sealing rib ring (17) are all made of rubber.

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