Automobile oil-water separator

Abstract

The utility model relates to the technical field of oil-water separators, in particular to an automobile oil-water separator which comprises a shell, a fixing cover and a fixing bottom, the upper end and the lower end of the shell are in threaded connection with the fixing cover and the fixing bottom respectively, a sealing device is arranged at the lower end of a water outlet, and a second sealing gasket is arranged between the shell and the fixing bottom. And a third sealing gasket is arranged between the shell and the fixed cover. When the filter paper is replaced, due to the fact that the openings are formed in the upper end and the lower end of the shell, a component on the lower side of the oil-water separator can be conveniently cleaned, and stable and efficient operation of the oil-water separator is guaranteed; through the sealing device, a special-shaped sealing gasket can prevent water flow from making contact with threads on the inner wall of the second sealing cover and threads on the outer surface of the water outlet, the second sealing cover and the water outlet cannot be rusted, and it is ensured that the second sealing cover is very easy to screw.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separator technology, and in particular to an automotive oil-water separator. Background Technology

[0002] An automotive oil-water separator is an essential automotive component that separates oil and water in a car. Its main function is to remove water from diesel fuel to reduce fuel injector malfunctions and extend engine life. The principle of an automotive oil-water separator is based on the density difference between water and fuel, using the principle of gravity sedimentation to remove impurities and water.

[0003] For example, the authorization announcement number "CN207647665U" is for an automotive oil-water separator. This automotive oil-water separator has a simple and reasonable structure, is economical and practical, and is easy to use. Through the combined use of a filter screen and filter paper, it can filter out impurities and water in the fuel, preventing impurities and water in the fuel from affecting the engine. Through the use of a fixed column, which adopts a near-conical structure, it can disperse the fuel, allowing the filter paper to fully filter the fuel and improve the utilization rate of the filter paper.

[0004] The above-mentioned and existing technologies have the following defects: the sealing screws of the oil-water separator will rust due to water at the drain outlet, making the screws difficult to turn; when replacing the filter paper, it is inconvenient to clean the lower side of the housing, the filter screen and the support block because the opening of the housing is at the top. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automotive oil-water separator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an automotive oil-water separator, comprising a housing, a fixed cover, and a fixed base. The upper and lower ends of the housing are threadedly connected to the fixed cover and the fixed base, respectively. The lower surface of the fixed base has an oil inlet and a drain outlet. A sealing device is provided at the lower end of the drain outlet. The upper surface of the fixed cover has an oil outlet. The inner wall of the fixed base has a first protrusion arranged in a ring. A filter screen is provided on the upper surface of the first protrusion. A second protrusion is arranged in a ring on the upper surface of the first protrusion. A support frame is provided on the upper surface of the second protrusion. A fixed post is provided on the upper surface of the middle part of the support frame. Filter paper is provided between the housing and the fixed post. A first sealing cover is provided on the upper surface of the fixed post. Multiple compression springs are provided between the first sealing cover and the fixed cover. A first sealing gasket is provided between the first sealing cover and the fixed post. A second sealing gasket is provided between the housing and the fixed base. A third sealing gasket is provided between the housing and the fixed cover.

[0008] Preferably, the sealing device includes a shaped sealing gasket, the lower end of which is provided with a retaining edge, and a second sealing cap is threadedly connected to the outer surface of the drain outlet.

[0009] Preferably, the cross-section of the irregularly shaped sealing gasket is an inverted U-shape.

[0010] Preferably, the cross-section of the second sealing cap is a regular hexagon.

[0011] Preferably, the upper surface of the fixed base is provided with a first positioning groove in an annular shape, and the lower surface of the second sealing gasket is integrally formed with a first positioning block, the lower end of the first positioning block extending into the first positioning groove.

[0012] Preferably, the upper surface of the housing is provided with a second positioning groove in an annular shape, and the lower surface of the third sealing gasket is integrally formed with a second positioning block, the lower end of the second positioning block extending into the second positioning groove.

[0013] The automotive oil-water separator proposed in this utility model has the following advantages: When replacing the filter paper, the openings at both the top and bottom of the housing facilitate cleaning of the lower components of the separator, namely the fixed base, filter screen, and support frame, ensuring stable and efficient operation of the oil-water separator; the sealing device and the irregularly shaped sealing gasket prevent water from contacting the threads on the inner wall of the second sealing cover and the threads on the outer surface of the drain outlet, preventing water at the drain outlet of the oil-water separator from causing corrosion of the second sealing cover and the drain outlet, and ensuring that the second sealing cover is easy to screw on. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is an enlarged view of position A in this utility model;

[0017] Figure 4 This is an enlarged view of position B in this utility model;

[0018] Figure 5 This is an enlarged view of position C of this utility model;

[0019] Figure 6 This is an enlarged view of position D of this utility model.

[0020] In the diagram: 1. Housing; 2. Fixed cover; 3. Fixed base; 4. Oil inlet; 5. Drain outlet; 6. Oil outlet; 7. First protrusion; 8. Filter screen; 9. Second protrusion; 10. Support frame; 11. Fixed column; 12. First sealing cover; 13. Compression spring; 14. First sealing gasket; 15. Second sealing gasket; 16. Third sealing gasket; 17. Irregularly shaped sealing gasket; 18. Edge; 19. Second sealing cover; 20. First positioning groove; 21. First positioning block; 22. Second positioning groove; 23. Second positioning block; 24. Filter paper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-6 An automotive oil-water separator includes a housing 1, a fixed cover 2, and a fixed base 3. The upper and lower ends of the housing 1 are threaded to the fixed cover 2 and the fixed base 3, respectively. The lower surface of the fixed base 3 has an oil inlet 4 and a drain outlet 5. The lower end of the drain outlet 5 is provided with a sealing device. The upper surface of the fixed cover 2 has an oil outlet 6. The inner side wall of the fixed base 3 is provided with a first protrusion 7 in annular shape. The upper surface of the first protrusion 7 is provided with a filter screen 8. The upper surface of the first protrusion 7 is provided with a second protrusion 9 in annular shape. The upper surface of the second protrusion 9 is provided with a support frame 10. The upper surface of the middle part of the support frame 10 is provided with a fixed post 11. Filter paper 24 is provided between the housing 1 and the fixed post 11. The upper surface of the fixed post 11 is provided with a first sealing cover 12. Multiple compression springs 13 are provided between the first sealing cover 12 and the fixed cover 2. A first sealing gasket 14 is provided between the first sealing cover 12 and the fixed post 11. A second sealing gasket 15 is provided between the housing 1 and the fixed base 3. A third sealing gasket 16 is provided between the housing 1 and the fixed cover 2. When in use, the device is installed on a car. The inlet pipe is threaded onto the inlet port 4, and the outlet pipe is threaded onto the outlet port 6. Fuel enters the housing 1 from the inlet port 4, is filtered by the filter screen 8, and then by the filter paper 24 before entering the upper part of the housing 1 and flowing out from the outlet port 6.

[0023] The sealing device includes a shaped sealing gasket 17, with a retaining edge 18 annularly provided at the lower end of the shaped sealing gasket 17, and a second sealing cap 19 threadedly connected to the outer surface of the drain outlet 5.

[0024] The cross-section of the irregularly shaped sealing gasket 17 is an inverted U-shape. This design keeps water away from the second sealing cover 19, preventing the second sealing cover 19 from contacting water and corroding.

[0025] The second sealing cap 19 has a regular hexagonal cross-section, which makes it easy to tighten with a wrench.

[0026] The upper surface of the fixed base 3 is provided with a first positioning groove 20 in an annular shape, and the lower surface of the second sealing gasket 15 is integrally formed with a first positioning block 21, the lower end of which extends into the first positioning groove 20. By extending the first positioning block 21 into the first positioning groove 20, displacement of the second sealing gasket 15 is prevented.

[0027] The upper surface of the housing 1 has a second positioning groove 22 annularly formed, and the lower surface of the third sealing gasket 16 has a second positioning block 23 integrally formed thereon, with the lower end of the second positioning block 23 extending into the second positioning groove 22. The second positioning block 23 extending into the second positioning groove 22 prevents the third sealing gasket 16 from shifting.

[0028] Working principle: When assembling this oil-water separator, the filter screen 8 is placed on the first protrusion 7, followed by the support frame 10. Then, the fixing column 11 and filter paper 24 are placed inside the housing 1. By screwing the housing 1, the first positioning block 21 is placed into the first positioning groove 20. The housing 1 is then threadedly connected to the fixing bottom 3. The first sealing gasket 14 is placed on the fixing column 11, and the first sealing cover 12 is placed on the upper end of the first sealing gasket 14 and the fixing column 11. The fixing cover 2 is then screwed onto the housing 1, and the first sealing cover 12 is pressed against the first sealing spring 13 to prevent the fixing column 11 from shaking. When replacing the filter paper 24, the operation is reversed. Since there are openings at both the top and bottom of the housing 1, it is convenient to clean the lower components of this separator, namely the fixing bottom 3, the filter screen 8, and the support frame 10, to ensure the stable and efficient operation of this oil-water separator. The sealing device and the irregularly shaped sealing gasket 17 prevent water from contacting the threads on the inner wall of the second sealing cover 19 and the threads on the outer surface of the drain outlet 5. The water at the drain outlet 5 of this oil-water separator will not cause corrosion of the second sealing cover 19 and the drain outlet 5, ensuring that the second sealing cover 19 is easy to screw on.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automotive oil-water separator, comprising a housing (1), a fixed cover (2), and a fixed base (3), characterized in that, The upper and lower ends of the housing (1) are threadedly connected to the fixed cover (2) and the fixed bottom (3) respectively. The lower surface of the fixed bottom (3) is provided with an oil inlet (4) and a drain outlet (5). The lower end of the drain outlet (5) is provided with a sealing device. The upper surface of the fixed cover (2) is provided with an oil outlet (6). The inner side wall of the fixed bottom (3) is provided with a first protrusion (7) in annular shape. The upper surface of the first protrusion (7) is provided with a filter screen (8). The upper surface of the first protrusion (7) is provided with a second protrusion (9) in annular shape. The upper surface of the second protrusion (9) is provided with a support frame (10). A fixing post (11) is provided on the upper surface of the middle part of the frame (10). Filter paper (24) is provided between the shell (1) and the fixing post (11). A first sealing cover (12) is provided on the upper surface of the fixing post (11). Multiple compression springs (13) are provided between the first sealing cover (12) and the fixing cover (2). A first sealing gasket (14) is provided between the first sealing cover (12) and the fixing post (11). A second sealing gasket (15) is provided between the shell (1) and the fixing bottom (3). A third sealing gasket (16) is provided between the shell (1) and the fixing cover (2).

2. The automotive oil-water separator according to claim 1, characterized in that, The sealing device includes a shaped sealing gasket (17), the lower end of which is provided with a retaining edge (18), and the outer surface of the drain outlet (5) is threaded with a second sealing cap (19).

3. The automotive oil-water separator according to claim 2, characterized in that, The cross-section of the irregular sealing gasket (17) is inverted U-shaped.

4. The automotive oil-water separator according to claim 2, characterized in that, The cross-section of the second sealing cap (19) is a regular hexagon.

5. The automotive oil-water separator according to claim 1, characterized in that, The upper surface of the fixed base (3) is provided with a first positioning groove (20) in an annular shape, and the lower surface of the second sealing gasket (15) is integrally formed with a first positioning block (21), the lower end of the first positioning block (21) extending into the first positioning groove (20).

6. The automotive oil-water separator according to claim 1, characterized in that, The upper surface of the housing (1) is provided with a second positioning groove (22) in an annular shape, and the lower surface of the third sealing gasket (16) is integrally formed with a second positioning block (23), the lower end of the second positioning block (23) extending into the second positioning groove (22).

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