1. The utility model provides a waterproof type of making an uproar body relief valve that falls which characterized in that includes:

the valve body (1) comprises one or more openings, and a valve plate is matched at each opening;

the waterproof cover (2) is arranged on the outer side of the valve body (1);

the labyrinth one-way valve (3) is arranged at the bottom of the waterproof cover (2), the labyrinth one-way valve (3) comprises a one-way valve channel (31), multiple layers of water retaining sheets (32) are arranged in the one-way valve channel (31) to form a transverse multi-turn channel, and each water retaining sheet (32) is arranged in a staggered mode, inclines downwards and forms an included angle of 0-20 degrees with the horizontal plane;

and the sound insulation cover (4) is coated outside the waterproof cover (2).

2. The water-proof noise-reduction type vehicle body pressure release valve according to claim 1, wherein the water blocking sheets (32) are arranged in a multi-level distribution along the length direction of the one-way valve channel (31).

3. The water-proof noise-reduction type vehicle body pressure release valve according to claim 2, wherein the water-blocking sheets (32) are distributed on both sides of the inner wall of the check valve passage (31) and are alternately distributed on both sides of the check valve passage (31) along the length direction thereof.

4. The water-proof noise-reduction type vehicle body pressure release valve according to claim 2, wherein the water-blocking sheets (32) are continuously arranged in an array on both sides of the inner wall of the one-way valve passage (31), and the adjacent single water-blocking sheets (32) on the inner wall of one side are arranged at equal intervals.

5. The water-proof noise-reduction type vehicle body pressure release valve according to claim 2, wherein one side of the water blocking piece (32) is connected to the inner wall of the one-way valve passage (31) to form a gap passage between the water blocking piece (32) of the one-way valve passage (31).

6. The water-proof noise-reduction type vehicle body pressure release valve according to claim 2, wherein the vertical orthographic projection of the water blocking sheets (32) on both sides of the inner wall of the one-way valve channel (31) can cover the horizontal section of the one-way valve channel (31).

7. The water-proof noise-reduction type vehicle body pressure release valve according to claim 1, wherein the diameter of the check valve passage (31) is gradually reduced from top to bottom.

8. The water-proof noise-reduction type vehicle body pressure release valve according to claim 1, wherein the water-blocking sheet (32) on the single-side inner wall is provided with 3-10 layers.

9. The water-proof noise-reduction type vehicle body pressure release valve according to claim 1, wherein the sound-proof cover (4) is made of water-proof sound-absorbing cotton or PU foam material.

10. The water-proof noise-reduction type vehicle body pressure release valve according to claim 1, wherein the soundproof cover (4) is fixed to the waterproof cover (2) by one of gluing, welding, bolt fastening, and snap-fit connection.

Background

The vehicle body pressure release valve is a weight-closing part for balancing the air pressure inside and outside the vehicle, consists of a pressure release valve body and a pressure release valve plate, and is a one-way airflow channel with the body hermetically arranged on the vehicle body. The pressure relief valve is an important part which directly influences the door closing force and the door closing sound quality of the vehicle door.

Although the pressure release valve is a one-way air flow channel, when a wading scene is passed, water is often fed into the vehicle through the pressure release valve, and very large property loss is caused to consumers. The pressure relief valve is a heavy part, so the problem of balancing the pressure relief valve and water management becomes an urgent technical problem to be solved.

At present, no technology for perfectly balancing the problems of opening of the pressure release valve and water leakage management exists.

CN108087598A discloses an adjustable automobile body relief valve device, reaches the regulatory action through reducing the air flow area, can realize the interior air exhaust requirement of different motorcycle types, and the personnel of being convenient for operate.

CN209414637U discloses an electric vehicle body pressure relief valve, which realizes the automatic control of the working state of the pressure relief valve through an electric mechanism, reduces the noise in the vehicle, improves the comfort level of the vehicle in the vehicle and the quality of the door closing sound, and reduces the door closing resistance.

CN111536296A discloses an electromagnetic type car body relief valve and car, can cross according to the car high speed operating mode and other operating modes control the normal close of relief valve block effectively to reduce car inner tyre noise and exhaust noise through the electro-magnet of electromagnetic type car body relief valve and permanent magnet, and electro-magnet and permanent magnet can cross the opening relief valve block before the switch door and when the air conditioner extrinsic cycle, have solved the ear pressure problem when the switch door, have improved noise comfort level and the cold and hot comfort level that the passenger took.

CN205745361U discloses a pressure release valve for automobile, which can block the flapping noise of the exhaust curtain of the exhaust port of tire noise, wind noise and road noise without affecting the pressure release and exhaust by setting a sound insulation part capable of ventilating in the valve body, thereby reducing the transmission to the carriage through the pressure release valve, and ensuring that the automobile has a better riding environment.

The above patent technology improves the comfort level of noise and temperature in the vehicle and the strength and sound quality of opening and closing the door by manual, electric or electromagnetic control of the valve plate or adding sound insulation measures, but does not consider the contradiction problem with water management.

CN205938012U discloses a vehicle pressure relief valve, which further includes a water-blocking cover, the water-blocking cover is installed outside the valve body, and the water-blocking cover defines a labyrinth air passage and defines an air outlet facing downward. The labyrinth air passage in the technical scheme is a side-arranged lower opening passage, water flow can easily enter the water retaining cover by the structure in a wading scene, and noise can be easily diffused by the open structure of the water retaining cover.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the waterproof noise reduction type vehicle body pressure release valve.

The purpose of the invention can be realized by the following technical scheme:

the waterproof noise-reduction type vehicle body pressure release valve in the technical scheme comprises a valve body, a waterproof cover, a labyrinth type one-way valve and a sound-proof cover, wherein the waterproof noise-reduction type vehicle body pressure release valve specifically comprises the following components:

the valve body comprises one or more openings, and a valve plate is matched at each opening;

the waterproof cover is arranged on the outer side of the valve body;

the labyrinth one-way valve is arranged at the bottom of the waterproof cover and comprises a one-way valve channel, multiple water retaining sheets are arranged in the one-way valve channel to form a transverse multi-fold return channel, and each water retaining sheet is arranged in a staggered mode, inclines downwards and forms an included angle of 0-20 degrees with the horizontal plane;

and the sound-proof cover is coated outside the waterproof cover.

Furthermore, the water blocking sheets are distributed in multiple layers along the length direction of the one-way valve channel.

Furthermore, the water retaining pieces are distributed on two sides of the inner wall of the one-way valve channel and are alternately distributed on two sides of the one-way valve channel along the length direction of the one-way valve channel.

Furthermore, the water retaining pieces are continuously distributed on two sides of the inner wall of the one-way valve channel in an array mode, and the adjacent single water retaining pieces on the inner wall of one side are arranged at equal intervals.

Furthermore, one side of the water retaining sheet is connected with the inner wall of the one-way valve channel to form a clearance between the water retaining sheets of the one-way valve channel for dredging.

Furthermore, the vertical orthographic projection of the water retaining pieces on the two sides of the inner wall of the one-way valve channel can cover the horizontal section of the one-way valve channel.

Further, the diameter of the one-way valve passage is gradually reduced from top to bottom.

Further, the water blocking sheet on the inner wall of the single side is provided with 3-10 layers, and 3-6 layers are further preferable.

Further, the sound-proof housing is waterproof sound-absorbing cotton or PU foam material.

Furthermore, both the water baffle and the sound-proof cover can be selected from rigid polyurethane foam plastics, and micron-sized metal particles are dispersed in the rigid polyurethane foam plastics in the preparation process of the rigid polyurethane foam plastics, so that one or more micro damping particles are sealed in closed holes in the rigid polyurethane foam plastics, and the rigid polyurethane foam plastics can play a role in sound absorption and damping.

Further, the sound-proof housing is fixed on the waterproof housing through one of gluing, welding, bolt fastening and buckle connection.

Compared with the prior art, the invention has the following technical advantages:

1) this technical scheme is from the water management source, solves the scene of wading at the positive and below design of relief valve and leaks the guard shield, and rivers get into the relief valve when effectively preventing the scene of wading, and bottom design labyrinth check valve and check valve opening and valve block opening dislocation can discharge the part rivers that accidentally get into and rivers impact entering relief valve when stopping the scene of wading. And cover acoustic material on the surface, can effectively protect rivers to get into the relief valve through this design to can effectively reduce way noise and exhaust noise and pass through the relief valve and transmit to the car in, reduce the car noise, promote NVH performance, be one and compromise the scheme that NVH and scene leaked water and solve.

2) This technical scheme can prevent effectively that rivers from passing through the relief valve and getting into the car, can solve the scene of wading simultaneously and leak the problem, reduces the way noise, wind noise, the exhaust noise that pass through the relief valve and transmit to the car in.

Drawings

Fig. 1 is a schematic structural diagram of a waterproof noise-reduction type vehicle body pressure release valve in the technical scheme;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 4 is a schematic view of the lower structure of the water-proof noise-reduction type vehicle body pressure release valve in the technical scheme.

In the figure: 1. the valve comprises a valve body, 2, a waterproof cover, 3, a labyrinth one-way valve, 4, a sound insulation cover, 31, a one-way valve channel, 32 and a water retaining sheet.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

When the vehicle passes through a wading scene, water flow can enter the vehicle from top to bottom through the pressure release valve, interior wiring harnesses in the vehicle are wetted by water, and the vehicle has strong harm to driving safety and metal plate corrosion. This solution adds a water management shroud outside the pressure relief valve and uses a labyrinth check valve, as shown in fig. 1 to 4. Water enters the vehicle through the pressure release valve when a wading scene can be effectively prevented, the labyrinth one-way valve can enable water flow in the pressure release valve to possibly flow out, the outlet of the one-way valve is staggered with the outlet of the labyrinth valve plate, and water flow can be effectively prevented from impacting and entering when the wading scene is carried out. And acoustic materials are covered outside, so that the requirements of wading scenes can be met, and the noise reduction effect can be achieved.

Automobile body relief valve water management problem, when the scene vehicle is through wading the scene, often water enters into the car through the relief valve in the time, can lead to pencil contact failure after intaking in the car, serious problems such as panel beating corruption, and the way is made an uproar and also can enter into the car through the relief valve with air sound such as exhaust noise in, arouse the big problem of car interior noise partially, manage the cover through managing at relief valve externally designed water and seal the relief valve lower part, design labyrinth check valve in the bottom, rivers impact gets into the relief valve when can effectively preventing wading the scene, and cover acoustic material on the surface, the problem of leaking when both can effectively solving wading the scene can fall the promotion NVH performance of making an uproar again.

This patent can prevent effectively that rivers from getting into the car through the relief valve, can solve simultaneously and wade the scene problem of leaking and reduce the way noise, wind noise, the exhaust noise that pass through the relief valve transmission to the car in.

The waterproof noise-reduction type vehicle body pressure release valve in the technical scheme comprises a valve body 1, a waterproof cover 2, a labyrinth type one-way valve 3 and a sound-proof cover 4, and is shown in the figures 1 to 3. The valve body 1 comprises one or more openings and a valve plate is fitted at each opening. The waterproof cover 2 is arranged on the outer side of the valve body 1. The soundproof cover 4 covers the outside of the waterproof cover 2.

Labyrinth check valve 3 locates the bottom of buckler 2, labyrinth check valve 3 includes check valve passageway 31, be equipped with multi-level water blocking piece 32 in the check valve passageway 31, return the passageway with this constitutes horizontal many turns over, every water blocking piece 32 staggered arrangement and downward sloping, and personally submit 0 ~ 20 contained angle with the level, wherein the characteristic of staggered arrangement and downward sloping is especially important, multi-level staggered arrangement plays decisive role in preventing to strike, also significant on the damping amortization of cooperation water blocking piece 32. The labyrinth type check valve 3 in the embodiment is specifically limited to a valve body structure containing a plurality of water retaining pieces 32, the water retaining pieces 32 in the valve body structure have a multi-layer partially overlapped area in the orthographic projection direction, so as to form a turning type flow channel, the channel has a turning type path structure similar to a labyrinth, and the water retaining pieces 32 have uniform inclination angles in specific directions, so that the turning type flow channel has an effect of reverse blocking in a wading scene.

The water blocking sheets 32 are distributed in multiple layers along the length direction of the one-way valve passage 31. The water blocking pieces 32 are distributed on both sides of the inner wall of the check valve passage 31 and are alternately distributed on both sides along the length direction of the check valve passage 31. The water retaining pieces 32 are continuously distributed in an array form on two sides of the inner wall of the one-way valve channel 31, and the adjacent single water retaining pieces 32 on the inner wall of one side are arranged at equal intervals. One side of the water retaining sheet 32 is connected with the inner wall of the one-way valve passage 31 to form a clearance passage between the water retaining sheets 32 of the one-way valve passage 31.

The vertical orthographic projection of the water retaining pieces 32 on the two sides of the inner wall of the one-way valve channel 31 can cover the horizontal section of the one-way valve channel 31, namely the water retaining pieces 32 have certain staggered area, so that the effect of preventing forward impact is achieved, and meanwhile, the effect of preventing noise from being transmitted into the one-way valve channel is particularly important. The cross area is the overlapping area on the orthographic projection, and the orthographic projection of the cross area is preferably not more than 50% of the orthographic projection area of the water guard sheet 32.

The diameter of the one-way valve channel 31 is gradually reduced from top to bottom, so that the protection effect of water flow impact is enhanced, the normal work of the valve body 1 is not influenced, and the noise transmission prevention is particularly important.

The water baffle 32 on the inner wall of one side is provided with 3-10 layers, preferably 3-6 layers, and the better water discharging impact effect can be obtained only by more than 3 layers. The sound-proof cover 4 is made of waterproof sound-absorbing cotton or PU foaming material. The water retaining sheet 32 and the sound-proof shield 4 can be both selected from rigid polyurethane foam plastics, and micron-sized metal particles are dispersed in the rigid polyurethane foam plastics in the preparation process, so that one or more micro damping particles are sealed in closed holes in the rigid polyurethane foam plastics, and the rigid polyurethane foam plastics can play a good sound absorption and damping role. The excellent soundproof and waterproof effect can be simultaneously achieved by matching the internal structure of the check valve passage 31 and the external structure of the check valve passage 31.

In specific implementation, the soundproof cover 4 is fixed on the waterproof cover 2 by one of gluing, welding, bolt fastening and snap connection.

Therefore, the invention starts from a water management source, the water leakage protective covers for wading scenes are designed on the front surface and the lower part of the pressure release valve, water flow is effectively prevented from entering the pressure release valve in the wading scenes, the labyrinth type one-way valve is designed at the bottom, the opening of the one-way valve is staggered with the opening of the valve plate, part of water flow which accidentally enters can be discharged, and water flow impact is prevented from entering the pressure release valve in the wading scenes. The acoustic material is covered on the surface, water flow can be effectively prevented from entering the pressure release valve through the design, road noise and exhaust noise can be effectively reduced and transmitted into the vehicle through the pressure release valve, noise in the vehicle is reduced, NVH performance is improved, and the invention gives consideration to NVH and water leakage solving in a wading scene.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.