Oil-filtering waterproof ventilation valve with oil-gas separation function

Abstract

The utility model discloses a waterproof ventilation valve body structure, belongs to the technical field of oil-filtering waterproof ventilation valves, and particularly relates to an oil-filtering waterproof ventilation valve with an oil-gas separation function, which comprises a valve body, a valve cover, a ventilation membrane, a filtering filler and an oil-proof baffle plate. An oil-proof baffle is designed below the filtering filler, a breathable film is subjected to surface oleophobic treatment, the contact included angle between oil and the surface of the breathable film is increased, oil liquid freely rolls down, the adhesion degree is improved, oil in oil mist and aerosol is filtered through the filtering filler, air is separated out, the separated clean air is discharged through the breathable film, and blockage cannot be caused; the oil-proof baffle is of a labyrinth design, splashed oil is blocked, the splashed oil is prevented from directly entering the valve, and the number of oil mist and aerosol entering the valve is reduced.

Description

Technical Field

[0001] This utility model discloses a waterproof and breathable valve body structure, belonging to the technical field of oil filter waterproof and breathable valves, specifically relating to an oil filter waterproof and breathable valve with oil-vapor separation function. Background Technology

[0002] Existing waterproof and breathable valves can block water and large particles such as dust, but they often fail in environments containing oil. For example, automotive components like gearboxes and reducers contain lubricating oil. When gears rotate rapidly and reach high temperatures, oil mist, aerosols, and splashed oil are generated. When these substances accumulate on the surface of the breathable membrane inside the valve, they cause blockage, leading to malfunction and eventually damage to the membrane due to pressure buildup. This damage can cause the gearbox and reducer to become completely sealed, allowing water and dust to enter and preventing these components from functioning. Ultimately, this can render the vehicle immobile and create safety hazards. Utility Model Content

[0003] Purpose of the utility model: To provide an oil-filtering, waterproof, and breathable valve with oil-vapor separation function to solve the problems mentioned above.

[0004] Technical solution: An oil-filtering, waterproof, and breathable valve with oil-vapor separation function, the waterproof and breathable valve comprising: valve body, valve cover, breathable membrane, filter packing, and oil-proof baffle;

[0005] In a further embodiment, the valve body has an internal cavity shape, the valve cover is fixedly installed on the valve body, the breathable membrane is fixedly installed in the upper part of the valve body, the oil-proof baffle is fixedly installed in the lower part of the valve body, and the filter packing is fixedly installed in the middle part of the valve body and located between the breathable membrane and the oil-proof baffle.

[0006] In a further embodiment, the bottom outer side of the valve body is provided with threads.

[0007] In a further embodiment, the breathable membrane is fixed to the upper part of the cavity of the valve body by a pressure ring.

[0008] In a further embodiment, the upper part of the cavity of the valve body is formed with a mounting groove for mounting the breathable membrane and the pressure ring.

[0009] In a further embodiment, the filter media is formed by stacking several layers.

[0010] In a further embodiment, the oil-proof baffle adopts a labyrinth structure.

[0011] Beneficial effects: The structure of this utility model achieves the function of preventing oil mist, aerosol and oil; improves the service life of the vent valve; reduces the failure rate of water leakage of automotive parts; and avoids potential risks to vehicle driving safety. Attached Figure Description

[0012] Figure 1 This is an isometric drawing of this utility model.

[0013] Figure 2 This is the front view of this utility model.

[0014] Figure 3 This is a cross-sectional view of the present invention.

[0015] Reference numerals: 1. Valve body; 2. Valve cover; 3. Breathable membrane; 4. Filter packing; 5. Oil-proof baffle; 6. Pressure ring; 7. Thread. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] An oil-filtering, waterproof, and breathable valve with oil-vapor separation function includes: valve body 1, valve cover 2, breathable membrane 3, filter packing 4, oil-proof baffle 5, and pressure ring 6.

[0020] In one embodiment, such as Figures 1 to 3 As shown, the valve body 1 has a cavity-like interior. The valve cover 2 is fixedly installed on the valve body 1. The breathable membrane 3 is fixedly installed in the upper part of the valve body 1. The oil-proof baffle 5 is fixedly installed in the lower part of the valve body 1. The filter packing 4 is fixedly installed in the middle part of the valve body 1 and is located between the breathable membrane 3 and the oil-proof baffle 5.

[0021] In one embodiment, such as Figures 1 to 3 As shown, the bottom outer side of the valve body 1 is provided with threads 7.

[0022] In one embodiment, such as Figures 1 to 3 As shown, the breathable membrane 3 is fixed to the upper part of the cavity of the valve body 1 by a pressure ring 6.

[0023] In one embodiment, such as Figures 1 to 3 As shown, the upper part of the cavity of the valve body 1 forms a mounting groove for installing the breathable membrane 3 and the pressure ring 6.

[0024] In one embodiment, such as Figures 1 to 3 As shown, the filter media 4 is formed by stacking several layers.

[0025] In one embodiment, such as Figures 1 to 3 As shown, the oil-proof baffle 5 adopts a labyrinth structure.

[0026] Working principle: Based on the above structure, filter filler 4 is designed below the waterproof and breathable membrane 3, and oil-proof baffle 5 is designed below the filter filler 4.

[0027] The breathable membrane 3 is treated with an oleophobic coating to increase the contact angle between the oil and the surface of the breathable membrane 3, allowing the oil to roll off freely and improving adhesion.

[0028] The filter media 4 filters out the oil in the oil mist and aerosol and separates the air. The clean air after separation is discharged through the breathable membrane 3 without causing blockage.

[0029] The oil baffle 5 features a labyrinth design to block splashed oil, preventing it from directly entering the valve and reducing the amount of oil mist and aerosol entering the valve.

[0030] This invention achieves the functions of preventing oil mist, aerosols, and oil; extends the service life of the vent valve; reduces the failure rate of water leakage in automotive parts; and avoids potential risks to vehicle driving safety.

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An oil-filtering, waterproof, and breathable valve with oil-vapor separation function, characterized in that, The waterproof and breathable valve includes: valve body, valve cover, breathable membrane, filter packing and oil-proof baffle; The valve body has an internal cavity shape. The valve cover is fixedly installed on the valve body. The breathable membrane is fixedly installed in the upper part of the valve body. The oil-proof baffle is fixedly installed in the lower part of the valve body. The filter packing is fixedly installed in the middle of the valve body and located between the breathable membrane and the oil-proof baffle.

2. The oil-filtering, waterproof, and breathable valve with oil-vapor separation function according to claim 1, characterized in that, The bottom outer side of the valve body is provided with threads.

3. The oil-filtering, waterproof, and breathable valve with oil-vapor separation function according to claim 1, characterized in that, The breathable membrane is fixed to the upper part of the cavity of the valve body by a pressure ring.

4. The oil-filtering, waterproof, and breathable valve with oil-vapor separation function according to claim 3, characterized in that, The upper part of the cavity of the valve body forms a mounting groove for installing the breathable membrane and the pressure ring.

5. The oil-filtering, waterproof, and breathable valve with oil-vapor separation function according to claim 1, characterized in that, The filter media is formed by stacking several layers.

6. The oil-filtering, waterproof, and breathable valve with oil-vapor separation function according to claim 1, characterized in that, The oil-proof baffle adopts a labyrinth structure.

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