Anti-collapse sealing strip

Abstract

The utility model discloses an anti-collapse sealing strip, which relates to the technical field of automobile parts and comprises a sealing strip main body, and the sealing strip main body comprises a lip part, a sponge foam pipe and a framework. The anti-collapse mechanism comprises a supporting piece and a supporting strip, the supporting piece and the supporting strip are both arranged to be of an arc-shaped structure, in the using process, the supporting piece and the supporting strip are perpendicularly arranged, the outer surface of the supporting piece abuts against the arc-shaped inner surface of the sponge foam pipe, and after the automobile door is closed, the supporting strip is stressed to generate arc-shaped deformation; the supporting piece abuts against the circular-arc-shaped inner surface of the sponge foam pipe all the time, the circular-arc-shaped surface of the sponge foam pipe is effectively prevented from collapsing, after the automobile door is opened, due to the fact that the supporting piece and the supporting strip are both made of memory metal, the supporting strip is restored when stress disappears, and therefore effective supporting is continuously provided, collapse is prevented, and the automobile door is convenient to use. And the influence on the overall performance and the aesthetic property of the vehicle and the comfort of passengers can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a sealing strip capable of preventing collapse. BACKGROUND

[0002] The door sealing strip is an important component of the door sealing system of a vehicle, and mainly functions to improve the air tightness of the vehicle and prevent water, dust and noise. The door sealing strip generally comprises a dense rubber and a sealing strip sponge bubble tube connected to the dense rubber. The dense rubber is bonded to sheet metal, and the sealing property of the door is mainly realized through the stress compression deformation of the sealing strip sponge bubble tube.

[0003] However, the sponge bubble tube part of the existing automobile door sealing strip is prone to collapse during long-term use, which weakens the sealing effect and affects the overall performance of the vehicle and the comfort of passengers. In severe cases, it can affect the closing effect of the door and also affect the aesthetics. SUMMARY

[0004] Therefore, the utility model aims to provide a sealing strip capable of preventing collapse to solve the technical problems in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sealing strip capable of preventing collapse, comprising a sealing strip main body, wherein the sealing strip main body comprises a lip, a sponge bubble tube and a framework, the lip is arranged at the front end of the sponge bubble tube, and the framework is arranged inside the lip.

[0006] The inside of the sponge bubble tube is provided with an anti-collapse mechanism, the anti-collapse mechanism comprises a support sheet and a support strip, the support sheet is arranged at the rear end inside the sponge bubble tube, and the support strip is arranged between the support sheet and the lip.

[0007] Preferably, the support sheet and the support strip are both arranged in an arc-shaped structure, and the outer surface of the support sheet is in abutment with the arc-shaped inner surface of the sponge bubble tube.

[0008] Preferably, the support strip and the support sheet are arranged perpendicularly, and the support strip is symmetrically arranged about the central axis of the support sheet.

[0009] Preferably, the support sheet and the support strip are both made of memory metal.

[0010] Preferably, the outer surface of the lip and the sponge bubble tube is bonded with a fire-retardant layer through an adhesive, the material of the fire-retardant layer is selected from one of fire-retardant polyvinyl chloride and fire-retardant polyurethane, the outer surface of the fire-retardant layer is bonded with a wear-resistant layer through an adhesive, and the material of the wear-resistant layer is selected from one of polyether ether ketone and polyamide.

[0011] Preferably, the inside of the fire-retardant layer is provided with a reinforcing fiber layer, the reinforcing fiber layer comprises glass fibers and carbon fibers, the glass fibers are arranged at the inside of the fire-retardant layer away from one end of the fire-retardant layer, and the carbon fibers are arranged at the inside of the fire-retardant layer close to one end of the fire-retardant layer.

[0012] Preferably, the outer surface of the fire-retardant layer is sprayed with a fire-retardant coating, and the outer surface of the fire-retardant coating is sprayed with a wear-resistant coating.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] 1、 the utility model discloses a prevent the collapse mechanism to be provided with, and it includes support piece and support strip, and support piece and support strip are all arranged as arc structure, when using, support piece and support strip are arranged perpendicularly, and make support piece outer surface and sponge bubble pipe's arc shape inner surface abut, make after the car door, support strip stress occurs arc deformation, in the process, support piece always abuts with the arc shape inner surface of sponge bubble pipe, effectively prevent the arc shape surface of sponge bubble pipe and collapse, and after the car door opens, because support piece and support strip all adopt memory metal and make, support strip restores original shape when stress disappears, to provide effective support continuously, prevent the collapse and take place, through this structure, can prevent the influence of the overall performance, the aesthetic appearance and the comfort of passenger of vehicle,

[0015] 2、 the utility model discloses that the outer surface of sealing strip is adhered with fire -retardant layer and wear -resisting layer through adhesive, and fire -retardant layer selects the polymer material that has fire -retardant performance itself, namely fire -retardant polyvinyl chloride, makes at combustion can form carbonization layer, prevents flame to spread, and wear -resisting layer selects the polymer material that has excellent wear resistance, namely polyether ether ketone, makes can have excellent wear resistance and fatigue resistance, and the surface of sealing strip is handled specially, namely spraying wear -resisting coating and fire -retardant coating, makes can further improve the wear resistance and fire -retardant property of sealing strip, in addition, by adding reinforcing fiber layer in wear -resisting layer, namely glass fiber and carbon fiber, make can further improve the wear resistance and tear resistance of sealing strip. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the three -dimensional structure schematic diagram of the utility model prevent the collapse mechanism;

[0018] Figure 3 It is the utility model Figure 1 It is the enlarged structure schematic diagram of A place in the utility model;

[0019] Figure 4 It is the overhead cutaway view of the utility model.

[0020] In the figure: 1, sealing strip main body; 101, lip; 102, sponge bubble tube; 103, skeleton; 2, anti-collapse mechanism; 201, support sheet; 202, support strip; 3, fire-retardant layer; 4, wear-resistant layer; 5, reinforced fiber layer; 501, glass fiber; 502, carbon fiber; 6, fire-retardant coating; 7, wear-resistant coating. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0022] The embodiments will be described below according to the overall structure of the present application.

[0023] A sealing strip against collapse, as shown in Figure 1 , Figure 3 and Figure 4 , comprises a sealing strip main body 1, and the sealing strip main body 1 comprises a lip 101, a sponge bubble tube 102 and a skeleton 103, the lip 101 is arranged at the front end of the sponge bubble tube 102, and the skeleton 103 is arranged through the inside of the lip 101;

[0024] As shown in Figure 1 , Figure 2 and Figure 4 , the inside of the sponge bubble tube 102 is provided with an anti-collapse mechanism 2, the anti-collapse mechanism 2 comprises a support sheet 201 and a support strip 202, the support sheet 201 is arranged at the rear end inside the sponge bubble tube 102, the support strip 202 is arranged between the support sheet 201 and the lip 101, the support sheet 201 and the support strip 202 are both arranged as an arc-shaped structure, the outer surface of the support sheet 201 abuts against the arc-shaped inner surface of the sponge bubble tube 102, the support strip 202 is arranged perpendicularly to the support sheet 201, and the support strip 202 is symmetrically arranged about the central axis of the support sheet 201, and the support sheet 201 and the support strip 202 are both made of a memory metal;

[0025] As shown in Figure 1 , Figure 2 and Figure 4It can be known that when in use, the support sheet 201 and the support strip 202 are arranged vertically, and the outer surface of the support sheet 201 abuts against the arc-shaped inner surface of the sponge bubble tube 102, so that after the door is closed, the support strip 202 is deformed in an arc shape under force, and in this process, the support sheet 201 always abuts against the arc-shaped inner surface of the sponge bubble tube 102, effectively preventing the arc-shaped surface of the sponge bubble tube 102 from collapsing, and after the door is opened, since the support sheet 201 and the support strip 202 are both made of memory metal, the support strip 202 restores to the original state when the force disappears, thereby continuously providing effective support and preventing collapse from occurring. Through this structure, the overall performance, aesthetics and passenger comfort of the vehicle can be prevented from being affected.

[0026] Referring to Figure 3 and Figure 4 It can be known that the lip portion 101 and the outer surface of the sponge bubble tube 102 are bonded by an adhesive with a flame-retardant layer 3, and the material of the flame-retardant layer 3 is selected from one of flame-retardant polyvinyl chloride and flame-retardant polyurethane, the outer surface of the flame-retardant layer 3 is bonded by an adhesive with a wear-resistant layer 4, and the material of the wear-resistant layer 4 is selected from one of polyether ether ketone and polyamide, the inside of the flame-retardant layer 3 is provided with a reinforcing fiber layer 5, the reinforcing fiber layer 5 includes glass fibers 501 and carbon fibers 502, the glass fibers 501 are arranged inside the flame-retardant layer 3 away from one end of the flame-retardant layer 3, the carbon fibers 502 are arranged inside the flame-retardant layer 3 close to one end of the flame-retardant layer 3, the outer surface of the flame-retardant layer 3 is sprayed with a flame-retardant coating 6, and the outer surface of the flame-retardant coating 6 is sprayed with a wear-resistant coating 7.

[0027] Referring to Figure 3 and Figure 4 It can be known that the outer surface of the sealing strip is bonded by an adhesive with a flame-retardant layer 3 and a wear-resistant layer 4, and the flame-retardant layer 3 is selected from a polymer material with inherent flame-retardant properties, i.e. flame-retardant polyvinyl chloride, so that a carbonized layer can be formed during combustion to prevent the spread of flames, and the wear-resistant layer 4 is selected from a polymer material with excellent wear resistance, i.e. polyether ether ketone, so that excellent wear resistance and fatigue resistance can be achieved, and the surface of the sealing strip is specially treated, i.e. sprayed with a wear-resistant coating 7 and a flame-retardant coating 6, so that the wear resistance and flame resistance of the sealing strip can be further improved. In addition, by adding a reinforcing fiber layer 5, i.e. glass fibers 501 and carbon fibers 502, in the wear-resistant layer 4, the wear resistance and tear resistance of the sealing strip can be further improved, and by arranging the glass fibers 501 on the outer layer, additional wear resistance can be provided, and by arranging the carbon fibers 502 on the inner layer, the strength of the overall structure can be enhanced.

[0028] The working principle of the utility model is: when using the anti-collapse sealing strip, the supporting sheet 201 and the supporting strip 202 are vertically arranged, the supporting strip 202 is symmetrically arranged, the outer surface of the supporting sheet 201 abuts against the arc-shaped inner surface of the sponge bubble tube 102, after closing the door, the supporting strip 202 is forced to be arc-shaped, in the process, the supporting sheet 201 always abuts against the arc-shaped inner surface of the sponge bubble tube 102, effectively preventing the arc-shaped surface of the sponge bubble tube 102 from collapsing, and after opening the door, since the supporting sheet 201 and the supporting strip 202 are both made of memory metal, the supporting strip 202 returns to the original state when the force disappears, thereby continuously providing effective support, preventing the sealing gasket from collapsing, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0029] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as in the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A collapse-resistant weatherstrip comprising a weatherstrip body (1) and the weatherstrip body (1) comprising a lip (101), a sponge bubble tube (102) and a skeleton (103), characterized in that: The lip part (101) is arranged at the front end of the sponge bubble tube (102), and the framework (103) is arranged inside the lip part (101); The inside of the sponge bubble tube (102) is provided with an anti-collapse mechanism (2), which comprises a support sheet (201) and a support strip (202), wherein the support sheet (201) is arranged at the rear end inside the sponge bubble tube (102), and the support strip (202) is arranged between the support sheet (201) and the lip part (101).

2. A sealant strip against collapse according to claim 1, characterized in that: The support sheet (201) and the support strip (202) are both arranged in an arc shape, and the outer surface of the support sheet (201) abuts against the arc-shaped inner surface of the sponge bubble tube (102).

3. A sealant strip against collapse according to claim 2, characterized in that: The support strip (202) is arranged perpendicularly to the support sheet (201), and the support strip (202) is symmetrically arranged about the central axis of the support sheet (201).

4. A sealant strip according to claim 3, wherein: The support sheet (201) and the support strip (202) are both made of memory metal.

5. A sealant strip against collapse according to claim 1, characterized in that: The outer surface of the lip part (101) and the sponge bubble tube (102) is bonded with a fire-retardant layer (3) by an adhesive, the material of the fire-retardant layer (3) is selected from one of fire-retardant polyvinyl chloride and fire-retardant polyurethane, the outer surface of the fire-retardant layer (3) is bonded with a wear-resistant layer (4) by an adhesive, and the material of the wear-resistant layer (4) is selected from one of polyether ether ketone and polyamide.

6. A sealant strip against collapse according to claim 5, characterized in that: The inside of the fire-retardant layer (3) is provided with a reinforced fiber layer (5), which comprises glass fibers (501) and carbon fibers (502), wherein the glass fibers (501) are arranged at the end of the fire-retardant layer (3) away from the fire-retardant layer (3), and the carbon fibers (502) are arranged at the end of the fire-retardant layer (3) close to the fire-retardant layer (3).

7. A sealant strip against collapse according to claim 6, characterized in that: The outer surface of the fire-retardant layer (3) is sprayed with a fire-retardant coating (6), and the outer surface of the fire-retardant coating (6) is sprayed with a wear-resistant coating (7).

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