CN221113487U - Sealing structure and automobile - Google Patents

Abstract

The utility model relates to a sealing structure and an automobile. The sealing structure comprises a sealing strip arranged on a vehicle door and a matching piece arranged on a vehicle body, wherein the sealing strip comprises a first sealing part and an extending edge, the extending edge is provided with a second sealing part, the second sealing part comprises a plurality of curved surfaces and/or a plurality of planes, and the matching piece is provided with a matching part corresponding to the second sealing part; when the vehicle door is closed, the first sealing part is in fit sealing with the vehicle body, and the second sealing part is in fit sealing with the matching part; the double sealing is realized through the laminating sealing between the first sealing part and the vehicle body and between the second sealing part and the matching part, so that the sealing effect is improved; meanwhile, the second sealing part comprises a plurality of curved surfaces and/or a plurality of planes to form a labyrinth structure, and compared with the common plane contact, the contact surface between the second sealing part and the matching part is increased, so that the sealing effect is further improved, and the purposes of noise in a vehicle and preventing dust and rainwater from entering are achieved.

Description

Sealing structure and automobile

Technical Field

The utility model relates to the technical field related to automobile sealing strips, in particular to a sealing structure and an automobile.

Background

The passenger car back door is very near to the rear wheel, receives tire noise and pollutant's influence easily, if sealing performance is not good enough, seriously influences back row noise performance and waterproof dirt-proof ability. At present, part of vehicle models are designed vertically by parting joints between a vehicle door and a vehicle body for attractive appearance and visual overall feel factors, which can lead the opening of the vehicle door to be opposite to a tire, and noise, dust and muddy water can directly enter the vehicle through the opening, so that a group of auxiliary sealing strips are required to be arranged at the part for protection.

The current vertical parting auxiliary sealing strip sets up in the position that the door just faces the tire, and auxiliary sealing strip integral erection is in the door, and when the door was closed, auxiliary sealing strip and automobile body contact and receive the extrusion to play sealed effect.

However, the use conditions of the automobile are very complex, and the automobile needs to cope with changeable road conditions and complex weather conditions, for example: when the vehicle runs on the road surface at high speed, the air flow inside and outside the vehicle has pressure difference and acts on the sealing strip, and when the pressure difference reaches a certain degree, the sealing of the door can be broken, so that the problem of dynamic sealing breaking is generated; when the automobile runs in rainy and snowy days, mud water splashed by the tire can directly invade the sealing strip and permeate into the automobile, so that extremely high requirements are put on the adaptability of the sealing strip, particularly on the sealing strip facing the vertical parting of the tire, the sealing state is required to be kept under the complex working condition, and the automobile has good permeation resistance.

Disclosure of utility model

Based on this, it is necessary to provide a sealing structure and an automobile with more excellent sealing performance, aiming at the problem that the sealing performance of the existing auxiliary sealing strip may be insufficient when the auxiliary sealing strip is used for coping with special road conditions and weather conditions.

The application firstly provides a sealing structure which comprises a sealing strip arranged on a vehicle door and a matching piece arranged on a vehicle body, wherein the sealing strip comprises a first sealing part and an extending edge, the extending edge is provided with a second sealing part, the second sealing part comprises a plurality of curved surfaces and/or a plurality of planes, and the matching piece is provided with a matching part corresponding to the second sealing part; when the vehicle door is closed, the first sealing part is in fit sealing with the vehicle body, and the second sealing part is in fit sealing with the matching part.

In one embodiment, the extension edge is located on a side closer to the outer space than the first sealing portion.

In one embodiment, when the vehicle door is closed, an included angle exists between a plane where the vehicle body attached to the first sealing portion is located and a plane where the matching portion is located.

In one embodiment, the sealing strip comprises an elastic element, the elastic element comprises a first sealing part and an extension edge, the first sealing part is fixed with each other, the cross section of the first sealing part along the transverse direction of the vehicle body is arc-shaped or angle-folded, when the vehicle door is closed, the first sealing part is extruded by the vehicle body to deform, so that the second sealing part is driven to move towards the direction close to the matching piece.

In one embodiment, the sealing strip further comprises a support, and the elastic piece is fixedly arranged on the support and forms a hollow bubble tube structure.

In one embodiment, the second seal portion has a wavy cross section in the vehicle transverse direction.

In one embodiment, a support bar is disposed within the extension edge.

In one embodiment, the support strip extends from within the extension edge into the first sealing portion.

A second aspect of the present application provides an automobile comprising the sealing structure described above.

In one embodiment, the mating member is a wheel cover plate.

According to the sealing structure, double sealing is realized through the joint sealing between the first sealing part and the vehicle body and between the second sealing part and the matching part, so that the sealing effect is improved; meanwhile, the second sealing part comprises a plurality of curved surfaces and/or a plurality of planes to form a labyrinth structure, and compared with the common plane contact, the contact surface between the second sealing part and the matching part is increased, so that the sealing effect is further improved, and the purposes of noise in a vehicle and preventing dust and rainwater from entering are achieved.

Drawings

FIG. 1 is a schematic cross-sectional view of a seal structure of the present application, with a portion of the wheel being taken in the transverse direction of the vehicle body;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

fig. 3 is a schematic view of the vehicle door of fig. 2 after the vehicle door is fully closed.

Reference numerals: 1. a vehicle door; 2. a vehicle body; 10. a sealing strip; 11. an elastic member; 11a, a first sealing part; 11b, an extension edge; 11c, a second sealing part; 11d, supporting strips; 12. a bracket; 13. a buckle; 20. a mating member; 21. and a mating part.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, the present application firstly provides a sealing structure, which includes a sealing strip 10 disposed on a vehicle door 1 and a fitting 20 disposed on a vehicle body 2, wherein the sealing strip 10 includes a first sealing portion 11a and an extending edge 11b, the extending edge 11b includes a second sealing portion 11c, the second sealing portion 11c includes a plurality of curved surfaces and/or a plurality of flat surfaces, and the fitting 20 includes a fitting portion 21 corresponding to the second sealing portion 11 c; when the door 1 is closed, the first seal portion 11a is sealed against the vehicle body 2, and the second seal portion 11c is sealed against the mating portion 21.

In the application, double sealing is realized by the joint sealing between the first sealing part 11a and the vehicle body 2 and between the second sealing part 11c and the matching part 21, so as to increase the sealing effect; meanwhile, the second sealing portion 11c includes a plurality of curved surfaces and/or a plurality of flat surfaces to form a labyrinth structure, and compared with the common flat contact, the contact surface between the second sealing portion 11c and the matching portion 21 is increased, so that the sealing effect is further improved, and the purposes of noise in a vehicle and preventing dust and rainwater from entering are achieved.

Referring to fig. 2, in some embodiments, the extending edge 11b is located at a side closer to the external space than the first sealing portion 11 a.

It can be appreciated that the labyrinth structure between the second sealing portion 11c and the mating portion 21 makes the contact area larger, and the sealing effect better, and compared with the sealing structure in which the first sealing portion 11a is disposed on the outer side near the external space, the labyrinth structure can effectively reduce the possibility that dust and rainwater break through the first layer of sealing, so as to enter between the first sealing portion 11a and the second sealing portion 11 c.

Referring to fig. 2 and 3, in some embodiments, when the door 1 is closed, an included angle exists between a plane of the vehicle body 2, which is in contact with the first sealing portion 11a, and a plane of the mating portion 21.

Namely, when the vehicle door 1 is closed, an included angle exists between a joint surface formed between the first sealing part 11a and the vehicle body 2 and a joint surface formed between the second sealing part 11c and the matching part 21; through forming the contained angle between two faying surfaces of design to increase dust, rainwater and break through the sealed degree of difficulty of getting into the second floor after the first floor is sealed, thereby further increase sealed effect.

Referring to fig. 1 and 2, in some embodiments, the sealing strip 10 includes an elastic member 11, where the elastic member 11 includes a first sealing portion 11a and an extending edge 11b that are fixed to each other, a cross section of the first sealing portion 11a along a transverse direction of the vehicle body 2 is arc-shaped or angle-folded, and when the vehicle door 1 is closed, the first sealing portion 11a is pressed by the vehicle body 2 to deform so as to drive the second sealing portion 11c to move in a direction approaching the mating member 20.

Specifically, when the vehicle door 1 is closed, the first sealing part 11a with the arc-shaped or folded-angle-shaped cross section contacts with the vehicle body 2 and is extruded to deform, so that on one hand, the contact area between the first sealing part 11a and the vehicle body 2 is increased along with the deformation of the first sealing part 11a, and the sealing effect is improved;

On the other hand, the deformation of the first sealing part 11a can drive the extension edge 11b to move towards the direction close to the matching piece 20, the extrusion force generated by the deformation of the first sealing part 11a ensures the fit and seal between the second sealing part 11c and the matching part 21, the contact area between the whole sealing strip 10 and the vehicle body 2 is increased, and the sealing effect is improved.

Referring to fig. 2, in some embodiments, the sealing strip 10 further includes a bracket 12, and the elastic member 11 is fixed to the bracket 12 and forms a hollow bubble tube structure.

The rigid support 12 can provide a supporting effect for the elastic piece 11 and can be fixed with the vehicle door 1, and the hollow bubble tube structure between the support 12 and the elastic piece 11 can reserve an elastic deformation space for the deformation of the elastic piece 11 on the premise of ensuring the supporting effect of the support 12 on the elastic piece 11 so as to obtain a better sealing effect.

In some embodiments, the sealing strip 10 further comprises a plurality of clips 13, the bracket 12 being secured to the door 1 by the clips 13.

Referring to fig. 2, in some embodiments, the second seal portion 11c has a wavy shape in cross section along the lateral direction of the vehicle body 2; the wavy second sealing part 11c can be matched with the matching part 21 to form a labyrinth structure, so that the contact area between the wavy second sealing part and the matching part is increased, and the breaking difficulty of dust and rainwater can be increased, so that the sealing effect is effectively improved.

Of course, the second sealing portion 11c may be zigzag or other shapes as long as a labyrinth structure can be formed, and the present application is not limited thereto.

It should be noted that the auxiliary sealing strip in the prior art mostly utilizes the characteristic that the rubber strip is compressible and deformable, and the sealing is performed by means of the force generated by deformation of the rubber strip when the vehicle door is closed, and is limited by the deformation of the rubber strip, so that the provided rebound force is limited, and the sealing capability is insufficient.

Particularly, when an automobile runs on a hollow road or passes through a twisted road, the automobile body can deform, and when the deformation reaches a certain degree, the auxiliary sealing strip cannot be kept in a compressed state, so that the sealing failure is generated for a short time, and noise, dust and muddy water directly enter the automobile through the opening to influence the environment in the automobile.

In this regard, referring to fig. 2, in some embodiments, a support bar 11d is disposed in the extension edge 11 b.

The support bar 11d can provide a certain supporting effect, and the condition that the tail end of the extending edge 11b sags under the self-weight effect, so that the sealing failure between the extending edge and the matching part 21 occurs is avoided.

In some embodiments, the support bar 11d is a spring reed.

Referring to fig. 2, in some embodiments, the support bar 11d extends from the extension edge 11b into the first sealing portion 11 a.

So set up, can drive through inside rigid support bar 11d and extend limit 11b and move to being close to the cooperation portion 21 direction when first sealing portion 11a deformation, support bar 11d can provide extra blocking force to make the laminating between second sealing portion 11c and the cooperation portion 21 inseparabler, improve sealed effect.

In this case, the seal 10 can resist the greater torsion of the vehicle body and keep the seal from failing, and at the same time, the sealing strip can resist the greater internal and external pressure difference and keep the sealing function during high-speed running, thereby improving the dynamic sealing capability.

In some embodiments, the lower edge of the bracket 12 extends to the connection location of the first sealing portion 11a and the extending edge 11b, thereby providing a fulcrum for rotation and deformation of the support bar 11 d.

A second aspect of the present application provides an automobile comprising the sealing structure described above.

Referring to fig. 1, in some embodiments, the mating member 20 is a wheel cover plate; by blocking the joint between the door 1 and the vehicle body 2 facing the tire by the extending edge 11b, mud water splashed by the tire is effectively prevented from penetrating into the vehicle through the joint between the door 1 and the vehicle body 2 facing the tire.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The sealing structure is characterized by comprising a sealing strip (10) arranged on a vehicle door (1) and a matching piece (20) arranged on a vehicle body (2), wherein the sealing strip (10) comprises a first sealing part (11 a) and an extending edge (11 b), the extending edge (11 b) is provided with a second sealing part (11 c), the second sealing part (11 c) comprises a plurality of curved surfaces and/or a plurality of planes, and the matching piece (20) is provided with a matching part (21) corresponding to the second sealing part (11 c);

When the door (1) is closed, the first sealing part (11 a) is sealed by bonding with the vehicle body (2), and the second sealing part (11 c) is sealed by bonding with the matching part (21).

2. The sealing arrangement according to claim 1, characterized in that the extension edge (11 b) is located on the side closer to the outer space than the first sealing portion (11 a).

3. The sealing structure according to claim 2, wherein when the door (1) is closed, an included angle exists between a plane of the vehicle body (2) of the portion attached to the first sealing portion (11 a) and a plane of the mating portion (21).

4. A sealing arrangement according to claim 3, characterized in that the sealing strip (10) comprises an elastic member (11), the elastic member (11) comprises the first sealing portion (11 a) and the extending edge (11 b) which are fixed to each other, the cross section of the first sealing portion (11 a) along the transverse direction of the vehicle body (2) is arc-shaped or angle-folded, and when the vehicle door (1) is closed, the first sealing portion (11 a) is deformed by the vehicle body (2) in a pressing manner, so as to drive the second sealing portion (11 c) to move in a direction approaching the mating member (20).

5. The sealing structure according to claim 4, wherein the sealing strip (10) further comprises a bracket (12), and the elastic member (11) is fixedly arranged on the bracket (12) and forms a hollow bubble tube structure.

6. The seal structure according to claim 1, wherein the second seal portion (11 c) has a wavy shape in cross section in a widthwise direction of the vehicle body (2).

7. A sealing arrangement according to any one of claims 1-6, characterized in that a support bar (11 d) is arranged in the extension edge (11 b).

8. The sealing arrangement according to claim 7, characterized in that the support strip (11 d) extends from within the extension edge (11 b) into the first sealing portion (11 a).

9. An automobile comprising the sealing structure according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that the mating element (20) is a wheel cover plate.