CN114194301B

CN114194301B - Wheel casing closing plate and car side wall seal structure

Info

Publication number: CN114194301B
Application number: CN202111508539.4A
Authority: CN
Inventors: 吴忠杰; 颜城敏; 阮维; 吴忠云; 余欢
Original assignee: Lantu Automobile Technology Co Ltd
Current assignee: Lantu Automobile Technology Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-10-14
Anticipated expiration: 2041-12-10
Also published as: CN114194301A

Abstract

The application relates to a wheel casing sealing plate and an automobile side wall sealing structure, wherein the shape of a sealing plate body is matched with an opening formed between a wheel casing outer plate and a side wall outer plate; the clamping piece is fixed on the sealing plate body and is used for being clamped on the clamping hole of the wheel cover outer plate; the foaming material covers on the outline of shrouding body, and is used for sealing the opening through foaming. Fix on the joint hole of wheel casing planking through the joint spare joint, easy operation, a joint spare just can reach and prevent changeing the purpose, need not to increase the rubber coating operation in the application workshop. Because the outer contour of the sealing plate body is covered with the foaming material, the foaming material can be foamed into a foaming body in a foam state after being baked at high temperature, the effect of sealing an opening is realized, the foaming body can be restored to the original state under certain compression and stretching external force, and the sealing problem of glue crack can not occur. Therefore, the problem that the vehicle leaks water and gas due to the fact that assembly procedures are complex, glue brushing is inconvenient, and sealing glue is prone to cracking in the related technology can be solved.

Description

Wheel casing closing plate and car side wall seal structure

Technical Field

The application relates to the technical field of automobile parts, in particular to a wheel casing sealing plate and an automobile side wall sealing structure.

Background

With the development of the automobile industry, the utilization rate of automobiles is higher and higher, and parts on the automobiles are hundreds of thousands, and each part plays a crucial role in the safety of the automobiles.

In order to prevent the vehicle body from being stained due to the adhesion of muddy water and damaged due to the scattering of gravel, a wheel house outer panel is attached to the lower portion of the vehicle body, and the wheel house outer panel performs a mud-blocking function, so that the wheel house outer panel is a very important part of the automobile components.

The side wall outer plate is an appearance part of a vehicle body structure, is an important part influencing the appearance, rigidity, sealing property, welding and light weight of the vehicle body, and is also a complex part which is difficult to realize by stamping.

Because the wheel cover outer plate is an indispensable outer covering part on the vehicle, the structure shape is complex, the size is large, a local flange is formed, the material is thin, the surface quality requirement is high, and the side wall outer plate belongs to a complex part which is difficult to realize by stamping.

In some related arts, the sealing scheme for the opening is mainly: the wheel cover sealing plate formed by punching is combined with the coating of the welding seam sealant to achieve sealing, and referring to fig. 1, the specific implementation process of the scheme is as follows:

firstly, the wheel cover sealing plate is connected and fixed with the side wall outer plate 5 through a first welding point A to form a wheel cover assembly.

And secondly, the wheel cover assembly is spliced with the wheel cover outer plate 4 and is fixedly connected through two second welding points B.

And finally, coating a welding seam sealant C along the outer contour of the wheel cover sealing plate to meet the sealing requirement.

However, the above solution still has some drawbacks.

For example, on one hand, the wheel cover sealing plate and the side wall outer plate 5 are welded through the first welding points A, and then the two second welding points B are welded on the wheel cover outer plate 4 to prevent the wheel cover sealing plate from rotating, so that at least three welding points are needed, and finally, the welding seam sealant C is coated, and the whole assembly process is relatively complex; on the other hand, the opening is very small, a circle of glue needs to be brushed in a coating workshop, the glue brushing operation space is small, and the opening formed between the wheel cover outer plate 4 and the side wall outer plate 5 has a sharp corner which also needs to be brushed, but the sharp corner is not beneficial to the coating operation.

For another example, the side wall outer plate 5 belongs to a high visible area, and welding spots are not allowed to appear, so that the area where the wheel cover sealing plate is matched with the side wall outer plate 5 can only be designed according to a certain gap, if the gap is too small, abnormal sound of a vehicle can be caused due to collision, and if the gap is too large, the glue brushing sealing is not tight, and the gap design is usually 3 mm; in the actual production and manufacturing process, the gap of the area fluctuates, the actual gap is between 1mm and 5mm, and in order to deal with the gap of 5mm, a coating workshop adopts a mode of increasing the glue coating amount to ensure sealing; but in the cooling stage of baking solidification, the welding seam sealant can crack visibly at the position due to different shrinkage rates of the metal plate and the welding seam sealant; in addition, in the use process of the vehicle, the crack has the risk of expanding slowly, and finally, water leakage and air leakage of the vehicle are caused due to untight sealing.

Disclosure of Invention

The embodiment of the application provides a wheel casing closing plate and car side wall seal structure to solve the problem that the assembly process is complicated among the correlation technique, the brush is glued inconveniently, sealed glue is easy to split, causes the vehicle leakage gas leakage.

In a first aspect, a wheel casing sealing plate is provided, which includes:

the shape of the sealing plate body is matched with an opening formed between the wheel cover outer plate and the side wall outer plate;

the clamping piece is fixed on the sealing plate body and is used for being clamped on the clamping hole of the wheel cover outer plate;

and the foaming material covers the outer contour of the sealing plate body and is used for sealing the opening through foaming.

This embodiment is fixed on the joint hole of wheel casing planking through joint spare joint, only need weld between the dress accomplish can, easy operation, a joint spare just can reach and prevent changeing the purpose, and need not to increase the rubber coating operation in the application workshop. Because the outer contour of the seal plate body is covered with the foaming material, the foam material can be foamed into a foam body in a foam state after being baked at high temperature, the effect of sealing an opening is realized, meanwhile, the foam body can be restored to the original state under certain external compression and stretching force, and the sealing problem of glue crack can not occur. Therefore, the problem that the vehicle leaks water and gas due to the fact that assembly procedures are complex, glue brushing is inconvenient, and sealing glue is prone to cracking in the related technology can be solved.

In some embodiments, the sealing plate body is provided with a first through hole;

the clip member includes:

the top of the first plate body is provided with a clamping structure clamped on the clamping hole;

one end of the plug connector is connected to the side wall of the first plate body, and the other end of the plug connector penetrates through the first through hole;

the first cantilever is arranged at one end of the plug connector penetrating through the first through hole, and the free end of the first cantilever abuts against the sealing plate body.

In some embodiments, the clamping structure comprises:

the two second cantilever arms are arranged at intervals, the bottom ends of the two second cantilever arms are connected to the top of the first plate body, and the top ends of the two second cantilever arms extend in the direction away from each other;

the bottom end of the vertical arm is connected to the top of the first plate body and is positioned between the two second cantilevers;

the top ends of the two third cantilevers are respectively connected to two ends of the vertical arm, and the bottom end of the third cantilever extends towards the second cantilever on the side where the third cantilever is located; and the number of the first and second groups,

and two sides of the second cantilever are respectively abutted against the third cantilever and the hole wall of the clamping hole.

In some embodiments, the clamping structure comprises:

the bottom end of the vertical arm is connected to the top of the first plate body;

the top ends of the two third cantilever arms are respectively connected to two ends of the vertical arm, and the bottom ends of the third cantilever arms extend towards the direction away from each other; and the number of the first and second groups,

the vertical arm and the third cantilever penetrate through the clamping hole, and the third cantilever is used for abutting against the wheel cover outer plate.

In some embodiments, the sealing plate body is further provided with at least two embedding grooves, and the top of the first plate body is provided with at least two limiting plates, wherein the limiting plates are embedded into the embedding grooves.

In some embodiments, the number of the first cantilevers is four, and the first cantilevers are connected to the plug connector in a cross shape;

or, the joint spare still includes the second plate body, the second plate body with first plate body is located respectively the both sides of shrouding body, be equipped with the second through hole on the second plate body, the plug connector with first cantilever passes the second through hole, just the free end of first cantilever supports holds the second plate body, so that the second plate body with first plate body fastening is in on the shrouding body.

In some embodiments, the foaming material is further covered on at least one of the two side walls of the sealing plate body and is used for being foamed to form a sound absorption layer.

In some embodiments, the thickness of the foaming material covering the side wall of the sealing plate body is 2 mm-5 mm.

In some embodiments, the foamed material is EVA resin, PE plastic, EPDM rubber, SBR rubber, or CR rubber; and/or the presence of a gas in the atmosphere,

the foaming rate of the foaming material is 800-2000%; and/or the presence of a gas in the atmosphere,

the thickness of the seal plate body is 0.2 mm-0.5 mm.

The second aspect provides an automobile side wall sealing structure, and it includes:

the wheel casing outer plate is provided with a clamping hole;

the wheel cover outer plate is connected with the side wall outer plate, and an opening is formed between the side wall outer plate and the wheel cover outer plate;

the wheel casing sealing plate comprises a wheel casing sealing plate body, a clamping part and a foaming material, wherein the wheel casing sealing plate body is arranged in the opening, the clamping part of the wheel casing sealing plate is clamped on the clamping hole, the foaming material on the sealing plate body forms foam through foaming, and the opening is sealed.

The technical scheme who provides this application brings beneficial effect includes:

the embodiment of the application provides a wheel casing closing plate and car side wall seal structure, and this embodiment passes through the joint spare joint to be fixed on the joint hole of wheel casing planking, only need weld between the dress workshop accomplish can, easy operation, a joint spare just can reach and prevent changeing the purpose, and need not to increase the rubber coating operation in the application workshop. Because the outer contour of the seal plate body is covered with the foaming material, the foam material can be foamed into a foam body in a foam state after being baked at high temperature, the effect of sealing an opening is realized, meanwhile, the foam body can be restored to the original state under certain external compression and stretching force, and the sealing problem of glue crack can not occur. Therefore, the problem that the vehicle leaks water and gas due to the fact that assembly procedures are complex, glue brushing is inconvenient, and sealing glue is prone to cracking in the related technology can be solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a seal between a side wall outer plate and a wheel cover outer plate in the related art;

FIG. 2 is a schematic view of a side wall sealing structure of an automobile according to an embodiment of the present application;

FIG. 3 is a perspective view of a wheel cover closure plate according to one embodiment of the present application;

figure 4 is a schematic view of the body of a closure plate according to one embodiment of the present application;

FIG. 5 is a front view of a clip provided in one embodiment of the present application;

fig. 6 is a top view of a clip provided in one embodiment of the present application;

fig. 7 is a schematic perspective view of a clip according to an embodiment of the present application;

FIG. 8 is a schematic view of a wheel cover plate according to another embodiment of the present application;

FIG. 9 is a schematic view of another perspective of a wheel cover plate in accordance with another embodiment of the present application;

figure 10 is a schematic view of the body of a closure plate according to another embodiment of the present application;

fig. 11 is a schematic perspective view of a clip according to another embodiment of the present application;

fig. 12 is a front view of a clip according to another embodiment of the present application.

In the figure: A. a first solder joint; B. a second solder joint; C. welding seam sealant; 1. a closing plate body; 10. a first through hole; 11. embedding the groove; 2. a clamping piece; 20. a first plate body; 200. a limiting plate; 21. a clamping structure; 210. a second cantilever; 211. a vertical arm; 212. a third cantilever; 22. a plug-in unit; 23. a first cantilever; 24. a second plate body; 3. a foam material; 4. a wheel house outer plate; 5. side wall planking.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 2 and 3, the embodiment of the application provides a wheel casing shrouding, this wheel casing shrouding includes shrouding body 1, joint spare 2 and expanded material 3, shrouding body 1's shape and the opening looks adaptation that is formed between wheel casing planking 4 and side wall planking 5 for shrouding body 1 can be placed smoothly in the opening between wheel casing planking 4 and side wall planking 5, joint spare 2 is fixed on shrouding body 1, and be used for the joint on the joint hole of wheel casing planking 4, expanded material 3 covers on shrouding body 1's outline, and be used for through foaming in order to seal the opening.

This embodiment is fixed on the joint hole of wheel casing planking 4 through 2 joints of joint spare, only need weld between the dress accomplish can, easy operation, joint spare 2 just can reach and prevent changeing the purpose, and need not to increase the rubber coating operation in the application workshop. Because the outer contour of the sealing plate body 1 is covered with the foaming material 3, the foaming material can be foamed into a foaming body in a foam state after being baked at high temperature, the effect of sealing an opening is realized, meanwhile, the foaming body can be restored to the original state under certain external compression and stretching force, and the sealing problem of glue crack can not occur. Therefore, the problem that the vehicle leaks water and gas due to the fact that assembly procedures are complex, glue brushing is inconvenient, and sealing glue is prone to cracking in the related technology can be solved.

The embodiment utilizes the buckle to connect, does not need the solder joint, and is energy-concerving and environment-protective, and above-mentioned joint spare 2 can adopt standard fitting moreover, need not the die sinking, saves cost and production cycle to the installation is reliable.

In order to reduce the noise in the passenger compartment, in some preferred embodiments, as shown in fig. 3 and 9, the foaming material 3 is further coated on at least one of the two side walls of the closing plate body 1 and is used to be foamed to form a sound absorbing layer.

The wheel housing cover plate may be a rear wheel housing cover plate or a front wheel housing cover plate.

Preferably, both side walls of the sealing plate body 1 are covered by the foaming material 3 to form a sandwich structure, the thickness of the foaming material 3 covering the side walls of the sealing plate body 1 is 2mm to 5mm, the thickness of the sealing plate body 1 is 0.2mm to 0.5mm, the foaming rate of the foaming material 3 is 800% to 2000%, the foaming of the foaming body is facilitated, the filling gap is sealed, the foamed thickness can reach 15 mm to 30mm, and the sound absorption performance is better.

The foaming material 3 may employ EVA resin, PE plastic, EPDM rubber, SBR rubber, or CR rubber, and preferably, EVA resin.

Further, referring to fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11 and fig. 12, the present application further provides an assembly structure of the clamping piece 2 and the sealing plate body 1, specifically, the sealing plate body 1 is provided with a first through hole 10, the clamping piece 2 includes a first plate body 20, a clamping structure 21, a connector 22 and a first cantilever 23, the top of the first plate body 20 is provided with the clamping structure 21, the clamping structure 21 is clamped on the clamping hole, one end of the connector 22 is connected to the side wall of the first plate body 20, the other end of the connector 22 passes through the first through hole 10, the first cantilever 23 is located at one end where the connector 22 passes through the first through hole 10, and the free end of the first cantilever 23 abuts against the sealing plate body 1.

This embodiment realizes the assembly of joint spare 2 and shrouding body 1 through mechanical connection, need not spare parts such as screw bolt and fixes, and from the cost, the cost is cheaper, and from the assembly, is more simple and convenient.

First cantilever 23 can adopt elastic material to make it form elastic cantilever, its benefit is, can press through the one hand, realizes assembling joint spare 2 on shrouding body 1 or pull down the purpose of joint spare 2 from shrouding body 1, and is more convenient in the operation.

The number of the first cantilevers 23 can be multiple according to actual needs, for example, as shown in fig. 6, in an embodiment, two first cantilevers 23 are provided, and the two first cantilevers 23 are symmetrically disposed on two sides of the plug 22; for another example, referring to fig. 8, in another embodiment, four first arms 23 are provided and connected to the plug 22 in a cross shape.

Further, in order to balance the stress and firmly connect the fastening member 2 and the sealing plate body 1 together, referring to fig. 3 and fig. 6, the fastening member 2 further includes a second plate body 24, the second plate body 24 and the first plate body 20 are respectively located at two sides of the sealing plate body 1, a second through hole is formed in the second plate body 24, the fastening member 22 and the first cantilever 23 pass through the second through hole, and the suspended end of the first cantilever 23 supports the second plate body 24, so that the second plate body 24 and the first plate body 20 are fastened on the sealing plate body 1.

The latch structure 21 can take many forms as long as the above-mentioned latch and rotation prevention can be achieved.

By way of example, the present application provides two types of snap-in structures 21:

in one embodiment, referring to fig. 5, 6 and 7, the clamping structure 21 includes two second suspension arms 210, a vertical arm 211 and two third suspension arms 212, the two second suspension arms 210 are arranged at intervals, the bottom ends of the two second suspension arms 210 are connected to the top of the first board body 20, the top ends of the two second suspension arms 210 extend in a direction away from each other, the bottom end of the vertical arm 211 is connected to the top of the first board body 20 and located between the two second suspension arms 210, the top ends of the two third suspension arms 212 are connected to two ends of the vertical arm 211, respectively, and the bottom end of the third suspension arm 212 extends towards the second suspension arm 210 on the side where it is located; the two sides of the second cantilever 210 are respectively supported on the third cantilever 212 and the wall of the fastening hole.

In this embodiment, adopt second cantilever 210 both sides to support respectively and hold the mode on the pore wall in third cantilever 212 and joint hole, its advantage is, even the joint hole is little, so the pore wall in joint hole supports when holding second cantilever 210 and moving towards vertical arm 211 direction, can be spacing by third cantilever 212, consequently, to wheel casing planking 4, even do little when adding man-hour joint hole, also can use, thereby can make full use of, reduce the rejection rate, reduce the machining precision in joint hole.

Meanwhile, the purpose of preventing the wheel casing closing plate from rotating can be achieved by using the two second cantilever arms 210 and the two third cantilever arms 212.

In this embodiment, the second cantilever 210 and the third cantilever 212 may be made of elastic material, so that they form an elastic cantilever, which has the advantage that the wheel casing sealing plate can be assembled on the wheel casing outer plate 4 or detached from the wheel casing outer plate 4 by being pressed by a human hand, thereby being more convenient in operation.

In another embodiment, referring to fig. 8, 9, 11 and 12, the clamping structure 21 includes a vertical arm 211 and two third suspension arms 212, a bottom end of the vertical arm 211 is connected to a top of the first plate 20, top ends of the two third suspension arms 212 are respectively connected to two ends of the vertical arm 211, bottom ends of the third suspension arms 212 extend in a direction away from each other, the vertical arm 211 and the third suspension arms 212 pass through the clamping holes, and the third suspension arms 212 are used for abutting against the wheel cover outer plate 4.

In this embodiment, the two third suspension arms 212 are directly used to abut against the wheel casing outer plate 4, so that the wheel casing sealing plate can be assembled and fixed on the wheel casing outer plate 4, and the wheel casing sealing plate can be prevented from rotating.

Further, as shown in fig. 8, 10, 11 and 12, the sealing plate body 1 is further provided with at least two embedding grooves 11, the top of the first plate body 20 is provided with at least two limiting plates 200, the limiting plates 200 are embedded in the embedding grooves 11, and by the cooperation of the limiting plates 200 and the embedding grooves 11, the assembly of the wheel cover sealing plate and the wheel cover outer plate 4 is further fastened, and the wheel cover sealing plate is further ensured not to rotate.

Referring to fig. 2, the application further provides an automobile side-wall sealing structure, which includes a wheel casing outer plate 4, a side-wall outer plate 5 and the wheel casing sealing plate provided in any of the above embodiments, wherein the wheel casing outer plate 4 is provided with a clamping hole, the side-wall outer plate 5 is connected with the wheel casing outer plate 4, and an opening is formed between the side-wall outer plate 5 and the wheel casing outer plate 4; the shrouding body 1 setting of wheel casing shrouding is in the opening, and 2 joints of joint spare of wheel casing shrouding are on the joint hole, and foaming material 3 on the shrouding body 1 has formed the bubble cotton through the foaming to sealed opening.

This embodiment is fixed on the joint hole of wheel casing planking 4 through 2 joints of joint spare, only need weld between the dress accomplish can, easy operation, joint spare 2 just can reach and prevent changeing the purpose, and need not to increase the rubber coating operation in the application workshop. Because the outer contour of the closing plate body 1 is covered with the foaming material 3, the foaming material can be foamed into a foaming body in a foam state after being baked at high temperature, the effect of sealing an opening is realized, and meanwhile, the foaming body can be restored to the original state under certain external compression and stretching force, and the sealing problem of glue crack can not occur. Therefore, the problem that the vehicle leaks water and gas can be solved by the aid of the sealing glue sealing device in the related art due to the fact that assembly processes are complex, the glue is inconvenient to brush and the sealing glue is prone to cracking.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel house closure plate, comprising:

the sealing plate comprises a sealing plate body (1), wherein the shape of the sealing plate body (1) is matched with an opening formed between a wheel cover outer plate (4) and a side wall outer plate (5);

the clamping piece (2) is fixed on the sealing plate body (1) and is used for being clamped on a clamping hole of the wheel cover outer plate (4);

the foaming material (3) covers the outer contour of the sealing plate body (1) and is used for being foamed to seal the opening;

the sealing plate body (1) is provided with a first through hole (10);

the clip (2) comprises:

the top of the first plate body (20) is provided with a clamping structure (21) clamped on the clamping hole;

the second plate body (24) and the first plate body (20) are respectively positioned on two sides of the sealing plate body (1), and a second through hole is formed in the second plate body (24);

one end of the plug connector (22) is connected to the side wall of the first plate body (20), and the other end of the plug connector (22) penetrates through the first through hole (10) and the second through hole;

the first cantilever (23) is arranged at one end of the plug connector (22) penetrating through the second through hole, and the free end of the first cantilever (23) abuts against the second plate body (24), so that the second plate body (24) and the first plate body (20) are fastened on the sealing plate body (1).

2. The wheel housing closure plate of claim 1, wherein the snap structure (21) comprises:

the two second suspension arms (210) are arranged at intervals, the bottom ends of the two second suspension arms (210) are connected to the top of the first plate body (20), and the top ends extend towards the direction away from each other;

the bottom end of the vertical arm (211) is connected to the top of the first plate body (20) and is positioned between the two second suspension arms (210);

the top ends of the two third suspension arms (212) are respectively connected to the two ends of the vertical arm (211), and the bottom end of each third suspension arm (212) extends towards the second suspension arm (210) on the side where the third suspension arm is located; and (c) a second step of,

and two sides of the second cantilever (210) are respectively abutted against the third cantilever (212) and the hole wall of the clamping hole.

3. The wheel housing closure plate of claim 1, wherein the snap structure (21) comprises:

the bottom end of the vertical arm (211) is connected to the top of the first plate body (20);

the top ends of the two third suspension arms (212) are respectively connected to the two ends of the vertical arm (211), and the bottom ends of the third suspension arms (212) extend towards the direction away from each other; and (c) a second step of,

the vertical arm (211) and the third cantilever (212) penetrate through the clamping hole, and the third cantilever (212) is used for abutting against the wheel cover outer plate (4).

4. The wheel housing closure plate of claim 3, wherein: the sealing plate is characterized in that the sealing plate body (1) is further provided with at least two embedding grooves (11), the top of the first plate body (20) is provided with at least two limiting plates (200), and the limiting plates (200) are embedded into the embedding grooves (11).

5. The wheel housing closure plate of claim 1, wherein:

the number of the first cantilevers (23) is four, and the first cantilevers are connected to the plug connector (22) in a cross mode.

6. The wheel housing closure plate of claim 1, wherein: the foaming material (3) is further covered on at least one of the two side walls of the sealing plate body (1) and is used for forming a sound absorption layer through foaming.

7. The wheel housing closure plate of claim 6, wherein: the thickness of the foaming material (3) covered on the side wall of the sealing plate body (1) is 2-5 mm.

8. The wheel housing closure plate of claim 1, wherein:

the foaming material (3) adopts EVA resin, PE plastic, EPDM rubber, SBR rubber or CR rubber; and/or the presence of a gas in the gas,

the foaming rate of the foaming material (3) is 800-2000%; and/or the presence of a gas in the gas,

the thickness of the sealing plate body (1) is 0.2 mm-0.5 mm.

9. The utility model provides an automobile side wall seal structure which characterized in that, it includes:

the wheel casing outer plate (4), the wheel casing outer plate (4) is provided with a clamping hole;

the side wall outer plate (5), the side wall outer plate (5) is connected with the wheel cover outer plate (4), and an opening is formed between the side wall outer plate (5) and the wheel cover outer plate (4);

and the wheel cover shrouding plate of any one of claims 1 to 8, wherein the shrouding plate body (1) of the wheel cover shrouding plate is arranged in the opening, the clamping piece (2) of the wheel cover shrouding plate is clamped on the clamping hole, and the foaming material (3) on the shrouding plate body (1) is foamed to form foam and seal the opening.