Air filtering device for diesel engine

Abstract

The utility model relates to the technical field of filtering devices, and discloses an air filtering device for a diesel engine, which comprises a filtering box, an air inlet is fixedly arranged at the front end of the filtering box, an air pump is fixedly arranged at the upper end of one side in the filtering box, and an air collecting hood is fixedly arranged at the air inlet in the filtering box. The input end of the air pump is fixedly connected with a connecting pipe, the end, away from the air pump, of the air pump is connected to the end of one side of the air collecting cover, a liquid storage tank is fixedly arranged at the lower end in the filter box, a T-shaped mounting opening is formed in the upper end of the filter box, a mounting plate is placed in the T-shaped mounting opening, and chamfering clamping grooves are formed in the middles of the two sides of the mounting plate. According to the device, air can be filtered for multiple times, so that the air entering the diesel engine does not have redundant impurities, the service life of the diesel engine is longer, the filter element can be quickly disassembled and assembled, convenience is brought to a user, and the convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to an air filtration device for diesel engines. Background Technology

[0002] Diesel engines are widely used in agricultural machinery. However, due to the harsh operating environment of agricultural machinery, the air often contains a lot of impurities such as dust, lint, and particulate matter. If the air entering the diesel engine is not filtered and protected, it can easily cause damage to the diesel engine and affect its service life.

[0003] Most existing diesel engine air filter devices cannot filter the air multiple times. Too many impurities in the air entering the diesel engine can reduce the service life of the diesel engine, prevent the fuel from burning completely, increase emissions, and make it impossible to quickly remove and install the filter element, causing inconvenience to users.

[0004] Therefore, those skilled in the art have provided an air filtration device for diesel engines to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an air filtration device for diesel engines. This device can filter air multiple times, ensuring that the air entering the diesel engine is free of excess impurities, thus extending the service life of the diesel engine. It also allows for quick installation and removal of the filter element, providing convenience for users and improving their usability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air filtration device for a diesel engine, comprising a filter box, an air inlet fixedly opened at the front end of the filter box, an air pump fixedly installed at the upper end of one side inside the filter box, an air collection hood fixedly installed inside the filter box and located at the air inlet, a connecting pipe fixedly connected to the input end of the air pump and the end away from the air pump connected to the end of one side of the air collection hood, and a liquid storage tank fixedly installed at the lower end inside the filter box.

[0007] The filter box has a T-shaped mounting opening at its upper end. A mounting plate is placed inside the T-shaped mounting opening. Chamfered slots are formed in the middle of both sides of the mounting plate. Mounting holes are formed in the middle of both sides inside the T-shaped mounting opening. Telescopic rods are fixedly installed on one side inside the two mounting holes. One end of each telescopic rod is fixedly connected to a chamfered locking block and engages with the chamfered slot. Springs are fitted on the outer walls of the two telescopic rods. A filter element is fixedly installed in the middle of the lower end of the mounting plate and is located inside the filter box. A filter cotton layer is fixedly installed on one side inside the filter element. An activated carbon layer is fixedly installed on one side of the filter cotton layer. A silica gel layer is fixedly installed on one side of the activated carbon layer.

[0008] Furthermore, a filter screen is fixedly installed inside the air inlet;

[0009] The above technical solution uses a filter to prevent debris from entering the air pump through the air inlet, thus reducing its service life.

[0010] Furthermore, the output end of the air pump is fixedly connected to an exhaust pipe, and its lower end extends into the liquid storage tank.

[0011] The above technical solution involves using an air pump to draw in outside air and then expelling it through an exhaust pipe into the storage tank for filtration.

[0012] Furthermore, a drain pipe is fixedly connected to one side of the liquid storage tank, and the end of the drain pipe that is away from the liquid storage tank extends out of the filter box. A valve is fixedly installed on the outer wall of the end of the drain pipe that extends out of the filter box.

[0013] The above technical solution involves installing a valve to prevent water in the storage tank from flowing out through the drain pipe.

[0014] Furthermore, the filter box has a liquid inlet at the top and is located above the liquid storage tank, and a fixed cover is placed inside the liquid inlet;

[0015] The above technical solution involves setting a fixed cover to prevent debris from entering the filter box from the liquid inlet.

[0016] Furthermore, a sealing ring is fixedly provided on the outer wall of the mounting plate, and a handle is fixedly provided at the middle of the upper end of the mounting plate;

[0017] The above technical solution includes a sealing ring to prevent gas from leaking out and a handle for pulling out the filter element to replace it.

[0018] Furthermore, an exhaust port is provided at the end of the filter box away from the air inlet;

[0019] The above technical solution allows for the opening of an exhaust port to facilitate the discharge of filtered air.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model proposes an air filtration device for diesel engines. It draws in outside air through an air pump and discharges it into a liquid storage tank. Under the action of the water inside the tank, most impurities in the air can be isolated. When the air passes through the filter element, it can effectively remove harmful substances in the air by passing through the filter cotton layer. When it passes through the activated carbon layer, the filtration effect is further improved. When it passes through the silica gel layer, it can adsorb the moisture in the air, ensuring that the air entering the diesel engine is free of excess impurities. This extends the service life of the diesel engine, ensures complete combustion of diesel fuel, increases power, saves fuel, and reduces emissions.

[0022] 2. The diesel engine air filter device proposed in this utility model uses chamfered locking blocks to engage with chamfered slots on both sides of the mounting plate, so that the mounting plate and the filter box are engaged. When the filter element needs to be replaced, the handle is pulled forcefully to disengage the chamfered locking blocks from the chamfered slots, which can realize quick disassembly and assembly of the filter element, bringing convenience to the user and improving its convenience. Attached Figure Description

[0023] Figure 1 This is an isometric view of an air filter device for a diesel engine proposed in this utility model;

[0024] Figure 2 This is a front sectional view of an air filter device for a diesel engine proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the filter structure of an air filter device for a diesel engine proposed in this utility model;

[0027] Figure 5 This is a side sectional view of the filter element of an air filtration device for a diesel engine proposed in this utility model.

[0028] Legend:

[0029] 1. Filter box; 2. Air inlet; 3. Filter screen; 4. Air pump; 5. Air collection hood; 6. Connecting pipe; 7. Liquid storage tank; 8. Exhaust pipe; 10. Drain pipe; 11. Valve; 12. Liquid inlet; 13. Fixing cover; 14. T-shaped mounting port; 15. Mounting plate; 16. Chamfered groove; 17. Mounting hole; 18. Telescopic rod; 19. Chamfered locking block; 20. Spring; 21. Sealing ring; 23. Handle; 24. Filter element; 25. Filter cotton layer; 26. Activated carbon layer; 27. Silica gel layer; 28. Exhaust port. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] One specific embodiment of this utility model is provided:

[0032] Reference Figure 1-3 An air filtration device for a diesel engine includes a filter box 1, an air inlet 2 fixedly opened at the front end of the filter box 1, an air pump 4 fixedly installed at the upper end of one side inside the filter box 1, a gas collection hood 5 fixedly installed inside the filter box 1 at the air inlet 2, a connecting pipe 6 fixedly connected to the input end of the air pump 4 and the end away from the air pump 4 connected to the end of one side of the gas collection hood 5, a liquid storage tank 7 fixedly installed at the lower end inside the filter box 1, a filter screen 3 fixedly installed inside the air inlet 2 to prevent impurities from entering the air pump 4 from the air inlet 2 and reducing its service life, and an exhaust pipe fixedly connected to the output end of the air pump 4. 8. Its lower end extends into the liquid storage tank 7. The air pump 4 draws in outside air and discharges it into the liquid storage tank 7 through the exhaust pipe 8 for filtration. A drain pipe 10 is fixedly connected to one side of the liquid storage tank 7, and the end away from the liquid storage tank 7 extends out of the filter box 1. A valve 11 is fixedly installed on the outer wall of the end of the drain pipe 10 that extends out of the filter box 1. The valve 11 is set to prevent water in the liquid storage tank 7 from flowing out of the drain pipe 10. An inlet 12 is opened at the upper end of the filter box 1 and is located above the liquid storage tank 7. A fixed cover 13 is placed inside the inlet 12 to prevent debris from entering the filter box 1 from the inlet 12.

[0033] Reference Figure 2 , 3 4 and 5, the upper end of the filter box 1 has a T-shaped mounting port 14, inside which a mounting plate 15 is placed. Chamfered slots 16 are formed in the middle of both sides of the mounting plate 15. Mounting holes 17 are formed in the middle of both sides of the T-shaped mounting port 14. Telescopic rods 18 are fixedly installed on one side of each mounting hole 17. One end of each telescopic rod 18 is fixedly connected to a chamfered locking block 19 and engages with the chamfered slot 16. Springs 20 are fitted onto the outer walls of the two telescopic rods 18. A filter element 24 is fixedly installed in the middle of the lower end of the mounting plate 15 and is located within the filter box. Inside the filter box 1, a filter cotton layer 25 is fixedly installed on one side of the filter element 24, an activated carbon layer 26 is fixedly installed on one side of the filter cotton layer 25, and a silica gel layer 27 is fixedly installed on one side of the activated carbon layer 26. A sealing ring 21 is fixedly installed on the outer wall of the mounting plate 15, and a handle 23 is fixedly installed at the middle of the upper end of the mounting plate 15. The sealing ring 21 is set to prevent gas from flowing out, and the handle 23 is set to pull out the filter element 24 for replacement. An exhaust port 28 is opened at the end of the filter box 1 away from the air inlet 2 to facilitate the discharge of filtered air.

[0034] Working principle: When the air filter device for this diesel engine is in use, the air pump 4 draws in outside air and discharges it into the liquid storage tank 7. Under the action of the water inside the tank, most impurities in the air can be isolated. When the air passes through the filter element 24, it can effectively remove harmful substances from the air by passing through the filter cotton layer 25 inside. When it passes through the activated carbon layer 26, the filtration effect is further improved. When it passes through the silica gel layer 27, it can absorb the moisture in the air, ensuring that the air entering the diesel engine is free of excess impurities. The chamfered locking block 19 is engaged with the chamfered locking groove 16 on both sides of the mounting plate 15, so that the mounting plate 15 is engaged with the filter box 1. When the filter element 24 needs to be replaced, the handle 23 is pulled to disengage the chamfered locking block 19 from the chamfered locking groove 16, so that the filter element 24 can be quickly disassembled and installed, improving its convenience.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air filter device for diesel engines, comprising a filter box (1), characterized in that: The filter box (1) front end fixed opening has an air inlet (2), the filter box (1) inside one side upper end fixedly provided with air pump (4), the filter box (1) inside and located at air inlet (2) fixedly provided with gas cover (5), the input end of air pump (4) is fixedly connected with connecting pipe (6) and the end away from air pump (4) is connected to the side end of gas cover (5), the filter box (1) inside lower end fixedly provided with liquid storage tank (7); The filter box (1) upper end is provided with a T-shaped mounting port (14), the T-shaped mounting port (14) is placed with a mounting plate (15), the mounting plate (15) is provided with a chamfered slot (16) in the middle of both sides, the T-shaped mounting port (14) is provided with a mounting hole (17) in the middle of both sides, one side of the two mounting holes (17) is fixedly provided with an extension rod (18), one end of the two extension rods (18) is fixedly connected with a chamfered block (19) and is clamped in the chamfered slot (16), the extension rods (18) are provided with springs (20) on the outer wall, the mounting plate (15) is fixedly provided with a filter core (24) in the middle of the lower end and is located in the filter box (1), the filter core (24) is fixedly provided with a filter cotton layer (25) on one side, the filter cotton layer (25) is fixedly provided with an activated carbon layer (26) on one side, the activated carbon layer (26) is fixedly provided with a silica gel layer (27) on one side.

2. An air filter device for a diesel engine according to claim 1, characterized in that: The filter box (1) upper end is provided with a T-shaped mounting port (14), the T-shaped mounting port (14) is placed with a mounting plate (15), the mounting plate (15) is provided with a chamfered slot (16) in the middle of both sides, the T-shaped mounting port (14) is provided with a mounting hole (17) in the middle of both sides, one side of the two mounting holes (17) is fixedly provided with an extension rod (18), one end of the two extension rods (18) is fixedly connected with a chamfered block (19) and is clamped in the chamfered slot (16), the extension rods (18) are provided with springs (20) on the outer wall, the mounting plate (15) is fixedly provided with a filter core (24) in the middle of the lower end and is located in the filter box (1), the filter core (24) is fixedly provided with a filter cotton layer (25) on one side, the filter cotton layer (25) is fixedly provided with an activated carbon layer (26) on one side, the activated carbon layer (26) is fixedly provided with a silica gel layer (27) on one side.

3. The air cleaner assembly of claim 1 wherein: The air inlet (2) is fixedly provided with a filter screen (3).

4. The air cleaner assembly of claim 1 wherein: The output end of the air pump (4) is fixedly connected with an exhaust pipe (8), and the lower end thereof extends into the liquid storage tank (7).

5. The air cleaner assembly of claim 1 wherein: One side of the liquid storage tank (7) is fixedly connected with a liquid discharge pipe (10), and the end away from the liquid storage tank (7) extends out of the filter box (1), and the outer wall of the end of the liquid discharge pipe (10) extending out of the filter box (1) is fixedly provided with a valve (11).

6. The air cleaner assembly of claim 1 wherein: The filter box (1) upper end is provided with a T-shaped mounting port (14), the T-shaped mounting port (14) is placed with a mounting plate (15), the mounting plate (15) is provided with a chamfered slot (16) in the middle of both sides, the T-shaped mounting port (14) is provided with a mounting hole (17) in the middle of both sides, one side of the two mounting holes (17) is fixedly provided with an extension rod (18), one end of the two extension rods (18) is fixedly connected with a chamfered block (19) and is clamped in the chamfered slot (16), the extension rods (18) are provided with springs (20) on the outer wall, the mounting plate (15) is fixedly provided with a filter core (24) in the middle of the lower end and is located in the filter box (1), the filter core (24) is fixedly provided with a filter cotton layer (25) on one side, the filter cotton layer (25) is fixedly provided with an activated carbon layer (26) on one side, the activated carbon layer (26) is fixedly provided with a silica gel layer (27) on one side.

7. The air cleaner assembly of claim 1 wherein: The filter box (1) away from the air inlet (2) one end is provided with exhaust port (28).

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