Automobile rear cover license plate mounting hole sealing structure and using method thereof

Abstract

The sealing structure for the license plate mounting hole in the automobile rear cover comprises the fixing sleeve arranged on one side of the automobile rear cover and the sealing assembly arranged on the other side of the automobile rear cover, the sealing assembly is movably arranged in the fixing sleeve, and the license plate mounting hole in the automobile rear cover is effectively sealed through the fixing sleeve and the sealing assembly; the sealing performance of the license plate mounting hole of the automobile rear cover is improved, the license plate mounting hole in the automobile rear cover is effectively sealed, the problem that water leaks and dust enters the license plate mounting hole of the automobile rear cover is effectively solved, and the license plate mounting hole of the automobile rear cover is effectively prevented from being rusted; the invention further provides a using method of the automobile rear cover license plate mounting hole sealing structure, the automobile rear cover license plate hole can be conveniently sealed through the automobile rear cover license plate mounting hole sealing structure, and the production cost can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile bodies and body accessories, and in particular to a sealing structure for a license plate mounting hole on a rear cover of an automobile and a method for using the same. Background Art

[0002] With the increasing demand for automobile appearance, more and more rear license plates are fixedly installed on the rear cover and tailgate of the car. During the period from the time the vehicle leaves the factory to the time the user purchases the car and registers the license plate, the four installation points of the license plate are exposed, which can easily lead to sealing problems such as water leakage and dust ingress. In addition, some car models need to be exported overseas, and there are more installation points on the rear cover of the car. During the sea transportation of vehicles, due to the transportation cycle and harsh environment, the installation points are more prone to sealing problems such as water leakage and dust ingress, resulting in rust at the installation points. The water and dust that enter the rear cover of the car from the installation points can easily cause the electrical components of the rear cover of the car to fail, affecting the quality of car delivery.

[0003] The license plate mounting holes arranged on the rear cover and tailgate of the car are mostly designed with welded nuts or riveted nuts on the back of the sheet metal to install and fix the rear license plate. After the installation of the welded nuts or riveted nuts, the sealing difficulty is greatly increased compared to the conventional plane holes. The existing solutions in the automotive industry are mostly to stick tape or patches at the rear cover license plate installation point for sealing, which is easy to fall off and has poor reliability. Some car companies will solve the problem of water leakage and dust ingress through differentiated management of automobile rear cover sheet metal stamping parts, but this solution has certain limitations and high management costs, which increases production costs.

[0004] Therefore, it is urgent to develop a sealing structure for the license plate installation hole on the rear cover of a car that is easy to install, can effectively seal the license plate installation hole on the rear cover of the car, can effectively prevent water leakage and dust from entering the license plate installation hole on the rear cover of the car, can effectively prevent rust from occurring at the license plate installation hole on the rear cover of the car, and is conducive to reducing production costs and a method of using the same. Summary of the invention

[0005] The present invention is made to solve the above problems, and aims to provide a sealing structure for the license plate installation hole on the rear cover of a car, which is easy to install, can effectively seal the license plate installation hole on the rear cover of the car, can effectively prevent water leakage and dust from entering the license plate installation hole on the rear cover of the car, can effectively prevent rust from occurring at the license plate installation hole on the rear cover of the car, and is conducive to reducing production costs, and a method for using the same. In order to achieve the above purposes, the technical solutions adopted by the present invention are:

[0006] The invention provides a sealing structure for a license plate mounting hole on a rear cover of an automobile, which has the following characteristics: it comprises a fixed sleeve arranged on one side of the rear cover of the automobile and a sealing component arranged on the other side of the rear cover of the automobile, wherein the sealing component is movably arranged in the fixed sleeve.

[0007] In the automobile rear cover license plate mounting hole sealing structure provided by the present invention, it can also have such a feature that the sealing assembly includes a sealing plug body, one end of the sealing plug body can be movably inserted into the fixed sleeve, and a sealing plug is provided on the end of the sealing plug body away from the fixed sleeve.

[0008] The sealing structure for the license plate mounting hole on the rear cover of the automobile provided by the present invention may also have such a feature that a sealing gasket is provided on the sealing plug body, and the sealing gasket can be movably sleeved on the sealing plug body.

[0009] The automobile rear cover license plate mounting hole sealing structure provided by the present invention may also have such a feature that a mounting notch is provided on the sealing gasket, and the sealing gasket is stacked on the sealing plug body.

[0010] The sealing structure for the license plate mounting hole on the rear cover of the automobile provided by the present invention may also have such a feature that a limiting protrusion is provided on a side of the sealing plug body away from the sealing plug.

[0011] The sealing structure for the automobile rear cover license plate installation hole provided by the present invention may also have such a feature that a sealing ring is provided on the sealing plug, and the sealing ring is movably arranged on the sealing plug.

[0012] The sealing structure for the license plate mounting hole on the rear cover of the automobile provided by the present invention may also have the following features: a first sealing flange is provided on the sealing ring, the first sealing flange abuts against the rear cover of the automobile; a second sealing flange is provided on the sealing ring, the second sealing flange abuts against the fixing sleeve.

[0013] The sealing structure for the license plate mounting hole of the automobile rear cover provided by the present invention may also have such a feature that the fixing sleeve is arranged on the inner side of the automobile rear cover.

[0014] The sealing structure for the license plate mounting hole of the automobile rear cover provided by the present invention may also have such a feature that the fixing sleeve is inserted into the license plate mounting hole of the automobile rear cover.

[0015] The present invention also provides a method for using a sealing structure for a license plate mounting hole on a rear cover of a car, which is used to seal the license plate hole on the rear cover of a car through the above-mentioned sealing structure for a license plate mounting hole on the rear cover of a car, and has the following characteristics, including the following steps: step S1, installing a fixing sleeve on the rear cover of the car; step S2, assembling a sealing component; step S3, setting the sealing component on the rear cover of the car and connecting it to the fixing sleeve.

[0016] The technical effect of the present invention is as follows: the sealing structure of the license plate mounting hole on the rear cover of the car provided by the present invention comprises a fixed sleeve arranged on one side of the rear cover of the car and a sealing component arranged on the other side of the rear cover of the car, the sealing component can be movably arranged in the fixed sleeve, and the license plate mounting hole on the rear cover of the car is effectively sealed by the fixed sleeve and the sealing component, thereby improving the sealing performance of the license plate mounting hole on the rear cover of the car, effectively sealing the license plate mounting hole on the rear cover of the car, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole on the rear cover of the car, and effectively avoiding rust at the license plate mounting hole on the rear cover of the car. The present invention also provides a method for using the sealing structure of the license plate mounting hole on the rear cover of the car, which facilitates the sealing of the license plate mounting hole on the rear cover of the car through the sealing structure of the license plate mounting hole on the rear cover of the car.

[0017] Therefore, the automobile rear cover license plate mounting hole sealing structure and the use method thereof provided by the present invention are easy to install, can effectively seal the automobile rear cover license plate mounting hole, can effectively prevent water leakage and dust ingress at the automobile rear cover license plate mounting hole, can effectively prevent rust at the automobile rear cover license plate mounting hole, and are conducive to reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification includes the following drawings, which show the following contents:

[0019] Figure 1 2 is a schematic structural diagram of a sealing structure for a license plate mounting hole on a rear cover of a vehicle according to an embodiment of the present invention;

[0020] Figure 2 The cross section of the sealing structure of the license plate installation hole of the rear cover of the automobile in the embodiment of the present invention is Figure 1 ;

[0021] Figure 3 is a schematic structural diagram of a sealing assembly in a front view direction in an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the sealing assembly in a top view direction in an embodiment of the present invention;

[0023] Figure 5 is a cross-sectional view of a sealing assembly in an embodiment of the present invention in the direction of the front view;

[0024] Figure 6 yes Figure 5 A partial enlarged view of part A;

[0025] Figure 7 is a schematic structural diagram of a sealing plug in an embodiment of the present invention in a front view direction;

[0026] Figure 8 The cross section of the sealing structure of the license plate installation hole of the rear cover of the automobile in the embodiment of the present invention is Figure 2 .

[0027] Marked in the figure: car rear cover - 1, license plate mounting hole - 2, fixing sleeve - 10, welded fixing sleeve - 11, riveted fixing sleeve - 12, sealing assembly - 20, sealing plug body - 21, sealing plug - 22, sealing ring mounting groove - 221, tool groove - 222, sealing gasket - 23, mounting notch - 231, limiting protrusion - 24, sealing ring - 25, first sealing flange - 251, mounting protrusion - 252, second sealing flange - 253. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0029] Figure 1 2 is a schematic structural diagram of a sealing structure for a license plate mounting hole on a rear cover of a vehicle according to an embodiment of the present invention; Figure 2 The cross section of the sealing structure of the license plate installation hole of the rear cover of the automobile in the embodiment of the present invention is Figure 1 .

[0030] like Figure 1 and Figure 2 As shown, the automobile rear cover license plate mounting hole sealing structure provided by the present invention comprises a fixed sleeve 10 arranged on one side of the automobile rear cover 1 and a sealing assembly 20 arranged on the other side of the automobile rear cover 1, wherein the sealing assembly 20 is movably arranged in the fixed sleeve 10, and the license plate mounting hole 2 on the automobile rear cover 1 is effectively sealed by the fixed sleeve 10 and the sealing assembly 20, thereby improving the sealing performance of the license plate mounting hole 2 on the automobile rear cover 1, effectively sealing the license plate mounting hole 2 on the automobile rear cover 1, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 on the automobile rear cover 1, and effectively avoiding rust at the license plate mounting hole 2 on the automobile rear cover 1. The present invention also provides a method for using the automobile rear cover license plate mounting hole sealing structure, which facilitates sealing the automobile rear cover license plate hole through the automobile rear cover license plate mounting hole sealing structure.

[0031] Figure 3 is a schematic structural diagram of a sealing assembly in a front view direction in an embodiment of the present invention; Figure 4 is a schematic diagram of the structure of the sealing assembly in a top view direction in an embodiment of the present invention;

[0032] like Figure 3 and Figure 4As shown, the sealing assembly 20 includes a sealing plug body 21, one end of the sealing plug body 21 can be movably inserted into the fixed sleeve 10, and a sealing plug 22 is provided on the end of the sealing plug body 21 away from the fixed sleeve 10. The sealing plug body 21 is cylindrical, and a sealing gasket 23 is provided on the sealing plug body 21. The sealing gasket 23 is funnel-shaped and can be movably sleeved on the sealing plug body 21. The sealing gasket 23 can enhance the sealing between the sealing plug body 10 and the fixed sleeve 10, and effectively prevent water and dust from entering the interior of the car rear cover 1 from between the sealing plug body 10 and the fixed sleeve 10, thereby improving the sealing of the license plate mounting hole 2 of the car rear cover 1, effectively sealing the license plate mounting hole 2 on the car rear cover, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 of the car rear cover 1, and effectively avoiding rust at the license plate mounting hole 2 of the car rear cover 1.

[0033] like Figure 1 As shown, the sealing gasket 23 is provided with an installation notch 231, through which the sealing gasket 23 can be conveniently mounted on the sealing plug body 21, so as to facilitate the removal or installation of the sealing gasket 23, and multiple sealing gaskets 23 can be evenly stacked on the sealing plug body 21, thereby further improving the sealing effect between the sealing plug body 10 and the fixed sleeve 10, and effectively preventing water and dust from entering the interior of the automobile rear cover 1 from between the sealing plug body 10 and the fixed sleeve 10. In order to further improve the sealing effect of the sealing gasket 23, the installation notches 231 between the sealing gaskets 23 can be staggered to form a spiral structure between the multiple sealing gaskets 23, which can further improve the sealing effect between the sealing plug body 10 and the fixed sleeve 10, effectively prevent water and dust from entering the interior of the car rear cover 1 from between the sealing plug body 10 and the fixed sleeve 10, improve the sealing of the license plate mounting hole 2 of the car rear cover 1, effectively seal the license plate mounting hole 2 on the car rear cover, effectively avoid water leakage and dust ingress at the license plate mounting hole 2 of the car rear cover 1, and effectively avoid rust at the license plate mounting hole 2 of the car rear cover 1.

[0034] A limiting protrusion 24 is provided on the side of the sealing plug body 21 away from the sealing plug 22. The limiting protrusion 24 can limit the sealing gasket 23, effectively preventing the sealing gasket 23 from slipping off the sealing plug body 21, thereby improving the reliability of the sealing effect of the sealing gasket 23.

[0035] Figure 5 is a cross-sectional view of a sealing assembly in an embodiment of the present invention in the direction of the front view; Figure 6 yes Figure 5 A partial enlarged view of part A.

[0036] like Figure 5 and Figure 6As shown, a sealing ring 25 is provided on the sealing plug 22, and the sealing ring 25 is movably arranged on the sealing plug 22. A first sealing flange 251 is provided on the sealing ring 25. The first sealing flange 251 is annular and evenly arranged on the circumference of the sealing ring 25. The edge of the first sealing flange 251 abuts against the rear cover 1 of the automobile. When the sealing plug body 21 is inserted into the fixed sleeve 10, the first sealing flange 251 can seal the gap between the plug body 22 and the rear cover 1 of the automobile, effectively preventing water and dust from entering the interior of the rear cover 1 of the automobile from between the sealing plug body 22 and the rear cover 1 of the automobile, thereby improving the sealing performance of the license plate mounting hole 2 of the rear cover 1 of the automobile, effectively sealing the license plate mounting hole 2 on the rear cover of the automobile, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 of the rear cover 1 of the automobile, and effectively avoiding rust at the license plate mounting hole 2 of the rear cover 1 of the automobile.

[0037] Figure 7 It is a schematic diagram of the structure of the sealing plug in the embodiment of the present invention in the front view direction.

[0038] like Figure 7 As shown, the sealing plug 22 is provided with a sealing ring installation groove 221, and the sealing ring installation groove 221 is evenly arranged on the sealing plug 22. The sealing ring 25 is provided with a mounting protrusion 252 matched with the sealing ring installation groove 221, and the mounting protrusion 252 is clamped in the sealing ring installation groove 221, so that the sealing ring 25 can be detachably mounted on the sealing plug 22, which is convenient for disassembly and replacement or maintenance, which is beneficial to reducing production costs, timely replacing the sealing ring 25 of poor quality, and improving the reliability of the structure.

[0039] like Figure 7 As shown, the sealing plug 22 is also provided with a tool groove 222, which is in the shape of a "M". The sealing plug body 21 can be installed by a general tool such as a "flat" or "cross" screwdriver, so as to facilitate the installation of the automobile rear cover license plate mounting hole sealing structure provided by the present invention.

[0040] like Figure 2As shown, the fixed sleeve 10 includes a welded fixed sleeve 11, which is arranged on the inner side of the rear cover 1 of the automobile. The welded fixed sleeve 11 is arranged on the inner side of the rear cover 1 of the automobile by welding. The inner wall of the welded fixed sleeve 11 is provided with an internal thread. The spiral structure formed by stacking the sealing gaskets 25 can movably rotate the sealing plug body 21 in the fixed sleeve 10. The sealing gaskets 23 are evenly arranged between the fixed sleeve 10 and the sealing plug body 21, which can effectively prevent water and dust from entering the interior of the rear cover 1 of the automobile from between the sealing plug body 10 and the fixed sleeve 10, thereby improving the sealing of the license plate mounting hole 2 of the rear cover 1 of the automobile, effectively sealing the license plate mounting hole 2 on the rear cover of the automobile, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 of the rear cover 1 of the automobile, and effectively avoiding rust at the license plate mounting hole 2 of the rear cover 1 of the automobile.

[0041] Figure 8 The cross section of the sealing structure of the license plate installation hole of the rear cover of the automobile in the embodiment of the present invention is Figure 2 .

[0042] After the vehicle leaves the factory, it is not convenient to weld the fixing sleeve 10 on the inner side of the rear cover 1 of some models, and the welding fixing sleeve 10 is not applicable to this situation. Figure 8 As shown, the fixed sleeve 10 also includes a riveted fixed sleeve 12, which is inserted into the license plate mounting hole 2 of the rear cover 1 of the car. The riveted fixed sleeve 12 is inserted into the license plate mounting hole 2 of the rear cover 1 of the car by riveting. The inner wall of the riveted fixed sleeve 12 is provided with an internal thread. The spiral structure formed by stacking the sealing gaskets 25 can movably rotate the sealing plug body 21 in the fixed sleeve 10, and the sealing gaskets 23 are evenly arranged between the fixed sleeve 10 and the sealing plug body 21. The riveted fixed sleeve 12 can achieve the sealing of the license plate mounting hole 2 on the car model that has been shipped or the rear cover of the car has been assembled, which improves the reliability of the structure and can further reduce the production cost.

[0043] like Figure 8 As shown, a second sealing flange 253 is provided on the sealing ring 25. The second sealing flange 253 is annular and evenly arranged on the circumference of the sealing ring 25 and is located on the inner side of the first sealing flange 251. The second sealing flange 253 abuts against the riveted fixing sleeve 12. When the sealing plug body 21 is inserted into the fixing sleeve 10, the second sealing flange 253 can seal the gap between the plug body 22 and the riveted fixing sleeve 12, effectively preventing water and dust from entering the interior of the automobile rear cover 1 from between the sealing plug body 22 and the riveted fixing sleeve 12, thereby improving the sealing performance of the license plate mounting hole 2 of the automobile rear cover 1, effectively sealing the license plate mounting hole 2 on the automobile rear cover, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 of the automobile rear cover 1, and effectively avoiding rust at the license plate mounting hole 2 of the automobile rear cover 1.

[0044] The sealing gasket 23 and the sealing ring 25 are both made of TPE material, which has excellent properties such as high elasticity, aging resistance and oil resistance, and is easy to process and has a wide range of processing methods, which is conducive to reducing production costs. The sealing plug body 21 and the sealing plug 22 are made of PA66 material, which is a thermoplastic resin with excellent characteristics of high mechanical strength, high hardness, high rigidity, heat resistance, toughness and wear resistance.

[0045] The present invention also provides a method for using the automobile rear cover license plate installation hole sealing structure, which is used to seal the automobile rear cover license plate installation hole sealing structure, comprising the following steps:

[0046] Step S1, selecting a suitable fixing sleeve 10 according to whether the rear cover 1 of the automobile has been assembled. When the rear cover 1 of the automobile has not been assembled, a welding fixing sleeve 11 may be selected. When the rear cover 1 of the automobile has been connected to the whole vehicle, a riveted fixing sleeve 12 may be selected to install the fixing sleeve 10 on the rear cover 1 of the automobile;

[0047] Step S2, stacking the sealing gasket 21 on the sealing plug body 21, installing the sealing ring 25 on the sealing plug 22, and completing the assembly of the sealing assembly 20.

[0048] Step S3, use a screwdriver or other tool to set the sealing assembly 20 on the rear cover 1 of the car, the sealing plug body 21 is screwed into the fixed sleeve 10, the sealing gasket 23 is evenly distributed between the sealing plug body 21 and the fixed sleeve 10, and the first sealing flange 251 of the sealing ring 25 is pressed against the rear cover 1 of the car.

[0049] Functions and Effects of the Embodiments

[0050] The automobile rear cover license plate mounting hole sealing structure provided by the present invention comprises a fixed sleeve 10 arranged on one side of the automobile rear cover 1 and a sealing assembly 20 arranged on the other side of the automobile rear cover 1. The sealing assembly 20 can be movably arranged in the fixed sleeve 10. The license plate mounting hole 2 on the automobile rear cover 1 is effectively sealed by the fixed sleeve 10 and the sealing assembly 20, thereby improving the sealing performance of the license plate mounting hole 2 of the automobile rear cover 1, effectively sealing the license plate mounting hole 2 on the automobile rear cover 1, effectively avoiding the problem of water leakage and dust ingress at the license plate mounting hole 2 of the automobile rear cover 1, and effectively avoiding the problem of rust at the license plate mounting hole 2 of the automobile rear cover 1. The present invention also provides a method for using the automobile rear cover license plate mounting hole sealing structure, which is convenient for sealing the automobile rear cover license plate hole through the automobile rear cover license plate mounting hole sealing structure. The automobile rear cover license plate mounting hole sealing structure and the method for using the automobile rear cover license plate mounting hole provided by the present invention are easy to install, can effectively seal the license plate mounting hole on the automobile rear cover, can effectively avoid the problem of water leakage and dust ingress at the license plate mounting hole of the automobile rear cover, can effectively avoid the problem of rust at the license plate mounting hole of the automobile rear cover, and are conducive to reducing production costs.

[0051] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A sealing structure for a license plate mounting hole on a rear cover of a car, characterized in that: It comprises a fixed sleeve (10) arranged on one side of a rear cover (1) of an automobile and a sealing component (20) arranged on the other side of the rear cover (1) of the automobile. The sealing component (20) is movably arranged in the fixed sleeve (10).

2. The sealing structure for the license plate installation hole on the rear cover of a car according to claim 1, characterized in that: The sealing assembly (20) comprises a sealing plug body (21), one end of which is movably inserted into the fixed sleeve (10), and a sealing plug (22) is provided on the end of the sealing plug body (21) away from the fixed sleeve (10).

3. The sealing structure for the license plate installation hole on the rear cover of a car according to claim 2, characterized in that: The sealing plug body (21) is provided with a sealing gasket (23), and the sealing gasket (23) can be movably sleeved on the sealing plug body (21).

4. The sealing structure for the license plate installation hole on the rear cover of a car according to claim 3, characterized in that: The sealing gasket (23) is provided with a mounting notch (231), and the sealing gasket (23) is stacked on the sealing plug body (21).

5. The sealing structure for the license plate installation hole on the rear cover of a car according to claim 4, characterized in that: A limiting protrusion (24) is provided on the side of the sealing plug body (21) away from the sealing plug (22).

6. The sealing structure for the license plate installation hole on the rear cover of a car according to claim 5, characterized in that: The sealing plug (22) is provided with a sealing ring (25), and the sealing ring (25) is movably arranged on the sealing plug (22).

7. The sealing structure for the license plate installation hole on the rear cover of a vehicle according to claim 6, characterized in that: The sealing ring (25) is provided with a first sealing flange (251), and the first sealing flange (251) abuts against the rear cover (1) of the automobile; the sealing ring (25) is provided with a second sealing flange (253), and the second sealing flange (253) abuts against the fixing sleeve (10).

8. The sealing structure for the license plate installation hole on the rear cover of a vehicle according to claim 1, characterized in that: The fixing sleeve (10) is arranged on the inner side of the rear cover (1) of the automobile.

9. The sealing structure for the license plate installation hole on the rear cover of a vehicle according to claim 1, characterized in that: The fixing sleeve (10) is inserted into a license plate mounting hole (2) of a rear cover (1) of an automobile.

10. A method for using the sealing structure for the license plate installation hole on the rear cover of a vehicle according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, installing the fixing sleeve (10) on the rear cover (1) of the automobile; Step S2, assembling the sealing assembly (20); Step S3, arranging the sealing assembly (20) on the rear cover (1) of the automobile and connecting it to the fixing sleeve (10).

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