Automobile pressure release valve and automobile

Abstract

The utility model provides an automobile pressure relief valve and automobile, the automobile pressure relief valve includes the flexible sheet-shaped body, the body includes the fixed part and the movable part, the fixed part is used for being fixedly connected with the automobile body, the movable part is used for blocking the pressure relief hole of the automobile body, the movable part is provided with the adsorption piece, and the adsorption piece is used for adsorbing the pressure relief hole of the automobile body. The adsorption part is used for adsorbing the body on a vehicle body, and when the pressure relief hole leaks air, the movable part is separated from the vehicle body. The fixed part of the body is fixedly connected with the vehicle body, the adsorption piece is installed in the movable part, the body is sucked to the vehicle body through the adsorption piece, the body is blown up during pressure relief, and due to the fact that the body is made of the flexible sheet-shaped material, abnormal sound generated between the body and the vehicle body is small when the body returns. The body does not need an additional mold, so that the cost is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and particularly relates to a vehicle pressure relief valve and a vehicle. Background Art

[0002] The rear pressure relief valve of a car is one of the necessary parts of the vehicle and the most important part for ventilation inside and outside the vehicle. Its main function is to maintain the balance of gas pressure inside and outside the car. When the car door is closed, the pressure inside the car will suddenly increase, and the rear pressure relief valve will open under the pressure to discharge excess gas to ensure the comfort of the human ear. When the car is driving at high speed and bumpy, there is a pressure difference between the inside and outside of the car, and the rear pressure relief valve will also open intermittently to release pressure. In addition, when the air conditioner is turned on for external circulation, the wind blowing into the car will also be discharged from the rear pressure relief valve to ensure the gas balance in the car.

[0003] The existing pressure relief valve structure basically installs a frame-shaped plastic cover on the car body, and uses several rubber sheets inside the cover to act as valves. The rubber sheet usually rests on the shell through gravity to play a closing role. When the pressure in the car is too high, the rubber sheet is blown up, thereby playing a ventilation role. The structure of the pressure relief valve is slightly complicated, and the plastic cover requires a more complicated mold to make, which is relatively expensive. The rubber valve sheet is put on the rib of the plastic cover through the opening, and there is a risk of being torn and falling off. When the pressure relief valve sheet returns to its position after being blown up, a popping sound will be produced, which is often heard and complained about at the moment of closing the door or when driving at high speed. This abnormal sound will deteriorate the sound quality of closing the door and increase the rear noise when gliding at high speed. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a vehicle pressure relief valve and a vehicle, which are used to solve the problems of the pressure relief valve in the prior art, such as complex structure, high cost, abnormal sound when returning to the original position, etc.

[0005] To achieve the above-mentioned purpose and other related purposes, on the one hand, the utility model provides a vehicle pressure relief valve, including a flexible sheet-like body, the body including a fixed part and a movable part, the fixed part is used to be fixedly connected to the vehicle body, the movable part is used to block the pressure relief hole of the vehicle body, the movable part is provided with an adsorption part, the adsorption part is used to suck the body onto the vehicle body, and when the pressure relief hole deflates, the movable part is separated from the vehicle body.

[0006] Furthermore, the movable part deflects and moves relative to the fixed part around the deflection axis, and a weakened area for reducing the bending strength of the movable part is provided on the movable part, and the weakened area is extended along the length direction of the deflection axis.

[0007] Furthermore, there are multiple weakened areas, and the multiple weakened areas are arranged in sequence parallel to the deflection axis.

[0008] Furthermore, the adsorbent is a magnet or a suction cup.

[0009] Furthermore, the adsorption member is a magnetic sheet or a flexible magnetic wire.

[0010] Furthermore, the magnetic wire is bent and extended in the movable portion.

[0011] Furthermore, the material of the main body is hard felt; the fixing portion is provided with a connecting hole, and a buckle for connecting with the vehicle body is penetrated through the connecting hole.

[0012] On the other hand, the present application provides an automobile, including a vehicle body and the above-mentioned vehicle pressure relief valve, wherein a pressure relief hole is opened at the rear of the vehicle body, the pressure relief valve is arranged corresponding to the pressure relief hole, and the pressure relief valve blocks the pressure relief hole.

[0013] Furthermore, the pressure relief hole includes a plurality of pressure relief hole units, and the pressure relief valve is installed in each of the pressure relief hole units.

[0014] Furthermore, the hardness of the body in each of the pressure relief hole units is different.

[0015] As described above, the utility model has the following beneficial effects: the fixed part of the body is fixedly connected to the vehicle body, the adsorption part is installed in the movable part, the body is sucked onto the vehicle body by the adsorption part, the body is blown up when the pressure is discharged, and since the body is made of a flexible sheet material, the abnormal noise generated between the body and the vehicle body when the body returns is relatively small. The body of the present application does not need to make an additional mold, thus reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the main body provided by the utility model installed on a vehicle body;

[0017] Figure 2 The structure of the car body Figure 1 ;

[0018] Figure 3 The structure of the car body Figure 1 ;

[0019] Figure 4 The structure of the main body Figure 1 ;

[0020] Figure 5 The structure of the main body Figure 2 ;

[0021] Figure 6 The structure of the main body Figure 3 ;

[0022] Figure 7The structure of the main body Figure 4 ;

[0023] Figure 8 The structure of the main body Figure 5 ;

[0024] Fig. 9 The structure of the main body Figure 6 .

[0025] Part Number Description

[0026] 1-main body, 11-fixed part, 12-movable part, 13-weakened area, 14-connecting hole, 2-adsorption part, 3-support part, 4-body. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] In order to describe the utility model in detail, first, a vehicle pressure relief valve and a vehicle of the utility model are specifically described below.

[0030] like Figure 1 As shown, the present application provides a vehicle pressure relief valve, including a main body 1 , the main body 1 includes a fixed portion 11 and a movable portion 12 , the fixed portion 11 is used for fixed connection with the vehicle body 4 , and the movable portion 12 is used for blocking the pressure relief hole of the vehicle body 4 .

[0031] The fixing part 11 can use glue or other methods to fix the body 1 on the vehicle body 4. In this application, a connection hole 14 is set in the fixing part 11, and the body 1 is fixed by a buckle. The buckle installation method is faster, easy to disassemble and maintain, and has low cost.

[0032] The adsorption member 2 is used to absorb the main body 1 onto the vehicle body 4 when there is no air leakage, and when the pressure relief hole is deflated, the movable part 12 is separated from the vehicle body 4. At least two of the movable parts 12 are provided with the adsorption member 2, and the movable part 12 has three ends. As long as the adsorption member 2 is installed on the edges of the two ends, the connection between the main body 1 and the vehicle body 4 can be basically ensured.

[0033] The body 1 is made of a flexible sheet material, such as a high-density sound-absorbing cotton, hard felt or resin glue. The body 1 of this embodiment is made of hard felt, which is airtight and has a suitable hardness. When it needs to be opened, the movable part 12 can be folded away from the body 4, unlike hard plastic that cannot be folded. When it does not need to be deflated, the hard felt can also fit well with the body 4. The hard felt itself has a certain sound-absorbing performance and can absorb the noise transmitted to the car, which can solve the NVH problem well.

[0034] The hard felt can be PET (polyethylene terephthalate felt) or PP plus PET (composite polyester felt material). The density is recommended to be 1500±500g / m^2. The hard felt is waterproof, mud-proof, and dust-proof, and is durable and corrosion-resistant. Non-woven fabric can be attached to the surface of the hard felt to better alleviate abnormal noise and improve waterproofness and dustproofness.

[0035] The adsorption component 2 can be a magnet or a suction cup to be attracted to the vehicle body 4 when the main body 1 is not depressurized. The adsorption component 2 of this embodiment is a magnet with magnetic properties, and the hard felt is made by a hot pressing molding process. The magnet is embedded in the main body 1, and the magnet is not visible from the outside of the main body 1.

[0036] The magnet can be a magnet sheet, which can be a long strip or multiple short strips. If the length of the magnet sheet is consistent with the length of the movable portion 12, the magnet sheet should be relatively flexible in order to allow the body 1 to be effectively folded. The magnet should be selected from materials with strong magnetic adsorption and long-lasting magnetic force, such as neodymium iron boron magnetic materials.

[0037] The magnet can also be a relatively small and flexible magnetic wire. The magnetic wire or magnetic sheet can be bent in multiple sections and extend along the direction of the movable part 12, or it can form an "S" curved shape, so that the compressed area of ​​the main body 1 is increased, and the connection between the main body 1 and the vehicle body 4 is more firmly when the pressure is not released.

[0038] The magnets may also be magnetic beads. A plurality of magnetic beads are disposed on each movable portion 12. The magnetic beads may be evenly disposed on a straight line, or may be staggered to form a sawtooth shape or an arc shape.

[0039] The magnets of each movable part 12 may be continuous or segmented, and the magnets of the three movable parts 12 may also be a whole piece.

[0040] In order to adapt to different working conditions, the movable part 12 deflects relative to the fixed part 11 around the deflection axis, and at least one weakened area 13 is provided on the body 1. The weakened area 13 is used to weaken the bending strength of the movable part 12, so the hardness of the weakened area 13 is lower than that of other areas of the movable part 12. A plurality of the weakened areas 13 are arranged in sequence parallel to the deflection axis.

[0041] The weakened area 13 is extended along the length direction of the deflection axis, that is, the weakened area 13 is parallel to the fixed portion 11, and the body 1 can be folded along the weakened area 13 when being folded. The weakened area 13 can be a small strip-shaped groove, which is equivalent to bending the body 1. A plurality of small holes can also be provided on the movable portion 12 to form a dotted line.

[0042] The main body 1 is formed by multi-layer hot pressing, so strip holes can be set on the hard felt in the middle layer. After the main body 1 is manufactured, the hardness of the main body 1 with the strip holes is relatively softer than that of the main body 1 without the strip holes.

[0043] Among them, Figure 4 As shown, three weakened areas 13 are arranged on the body 1, the top of the body 1 is connected to the body 4, and the two sides and the bottom in the height direction of the body are the movable parts 12. When the car door is opened, the pressure inside the car is high, and the pressure relief valve will be folded along the uppermost weakened area 13, which is equivalent to opening the entire body 1; when the air conditioning external circulation is turned on, with a large air volume, it can be turned along the middle weakened area 13, and the body 1 opens a relatively large area; when driving on the highway or encountering a large bumpy road condition, the pressure inside the car is average, and the hard felt is folded along the lowermost weakened area 13, folding part of the body 1. The fixed part 11 can also be arranged vertically, and the weakened area 13 can be arranged vertically.

[0044] On the other hand, the present application also provides a car, including a body 4 and the above-mentioned vehicle pressure relief valve, a pressure relief hole is opened at the rear of the body 4, the pressure relief valve is arranged corresponding to the pressure relief hole, and the pressure relief valve is used to block the pressure relief hole.

[0045] In detail, the pressure relief hole is divided into at least two pressure relief hole units by the support member 3, such as Figure 2 As shown, both ends of the support member 3 are used to connect with the vehicle body 4, and the support member 3 can be integrally formed with the vehicle body 4. A pressure relief valve is installed in each pressure relief hole unit.

[0046] If one support member 3 is used, the support member 3 can be arranged vertically or horizontally, and two bodies 1 are respectively installed on both sides of the support member 3, which is equivalent to dividing the body 1 into two pieces, and the hardness of the two bodies 1 can be the same. The hardness of the two bodies 1 can also be different, and specifically, they can be made of hard felt of different thicknesses, or made of different materials, so that the hardness of the two regions formed is different, and different sizes can be opened for different airflows.

[0047] The folding directions of the two bodies 1 can be the same or different. For example, both bodies 1 are arranged vertically with the same or opposite folding directions. Figure 8 Or one vertical fold and one horizontal fold, as shown. Fig. 9 shown.

[0048] like Figure 2 and Figure 8 As shown, the support member 3 is arranged horizontally, and the two main bodies 1 are folded upward. For example, when driving, only the lowermost main body 1 can be opened. When opening and closing the door or the air conditioner is in the maximum gear external circulation, the upper and lower sections of the main body 1 are opened at the same time.

[0049] The upper and lower layers can also be installed with the current plastic cover rubber sheet structure on the upper part, and the lower part uses hard felt.

[0050] A plurality of support members 3 may also be provided on the pressure relief hole. The plurality of support members 3 may be provided in parallel or crosswise to form a plurality of pressure relief hole units. An independent pressure relief valve may be installed in each pressure relief hole unit. The strength of each body 1 may be the same or different.

[0051] The cost of the hard felt material itself is low, and the cost of the magnetic wire and the clips used for installation is also low, which eliminates the design and mold opening time of the traditional plastic cover, saves the mold opening cost, and reduces the complexity of parts assembly; the clips are assembled to the car body, which is easy to replace after sales and has low maintenance costs.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A vehicle pressure relief valve, characterized in that: The invention comprises a flexible sheet-like body (1), wherein the body (1) comprises a fixed portion (11) and a movable portion (12), wherein the fixed portion (11) is used for being fixedly connected to a vehicle body, and the movable portion (12) is used for blocking a pressure relief hole of the vehicle body, and an adsorption component (2) is provided on the movable portion (12), wherein the adsorption component (2) is used for adsorbing the body (1) onto the vehicle body, and when the pressure relief hole is deflated, the movable portion (12) is separated from the vehicle body.

2. The vehicle pressure relief valve according to claim 1, characterized in that: The movable part (12) deflects relative to the fixed part (11) around a deflection axis, and a weakened area (13) is provided on the movable part (12) for reducing the bending strength of the movable part (12), and the weakened area (13) is extended along the length direction of the deflection axis.

3. The vehicle pressure relief valve according to claim 2, characterized in that: There are a plurality of weakened areas (13), and the plurality of weakened areas (13) are arranged in sequence parallel to the deflection axis.

4. The vehicle pressure relief valve according to claim 1, characterized in that: The adsorption member (2) is a magnet or a suction cup.

5. The vehicle pressure relief valve according to claim 1, characterized in that: The adsorption member (2) is a magnetic sheet or a flexible magnetic wire.

6. The vehicle pressure relief valve according to claim 5, characterized in that: The magnetic wire is bent and extended in the movable part (12).

7. The vehicle pressure relief valve according to claim 1, characterized in that: The material of the main body (1) is hard felt; the fixing portion (11) is provided with a connecting hole (14), and a buckle for connecting with the vehicle body is penetrated in the connecting hole (14).

8. A car, characterized in that: It comprises a vehicle body (4) and the vehicle pressure relief valve according to any one of claims 1 to 7, wherein a pressure relief hole is opened at the rear of the vehicle body (4), the pressure relief valve is arranged corresponding to the pressure relief hole, and the pressure relief valve is used to block the pressure relief hole.

9. The automobile according to claim 8, characterized in that: The pressure relief hole comprises a plurality of pressure relief hole units, and the pressure relief valve is installed in each of the pressure relief hole units.

10. The automobile according to claim 9, characterized in that: The hardness of the body (1) in each of the pressure relief hole units is different.

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