Fuel filter with self-bleeding structure

Abstract

The utility model provides a kind of fuel filter with self exhaust structure, it is related to filter technical field.This kind of fuel filter with self exhaust structure, including filter body, the outer wall of filter body is welded with mounting bracket, the bottom of mounting bracket is fixedly connected with electric motor, the output shaft of electric motor passes through mounting bracket bottom and is welded with lead screw, the outer wall of lead screw is connected with screw nut, screw nut is welded in the inside of fixed block one, the end of fixed block one is welded with wear-resistant steel cover, wear-resistant steel cover is welded with fixed block two in the side wall away from fixed block one, the inside of fixed block two is equipped with inner hole, the inside of inner hole is slidably connected with slide bar.The utility model through operating electric motor, wear-resistant steel cover can be lowered to the top of filter body, so that exhaust assembly and adsorption filter assembly can be covered, reach the effect of protecting exhaust assembly and adsorption filter assembly, so it can effectively prevent mutual collision between components and damage exhaust device.

Description

Technical Field

[0001] This application relates to the field of filter technology, and more particularly to a fuel filter with a self-exhausting structure. Background Technology

[0002] Fuel filters remove harmful particles and moisture from the engine's fuel system to protect components such as the fuel pump, injectors, cylinder liners, and piston rings, reducing wear and preventing clogging. There are three types of fuel filters: diesel filters, gasoline filters, and natural gas filters.

[0003] A search of publication number CN217354570 U reveals an automatic venting diesel filter, comprising a diesel filter body and a level sensor for detecting the diesel fuel level inside the filter body. An exhaust pipe is connected to the exhaust port on the filter body. A suction and exhaust mechanism is located beside the filter body, with electrically controlled telescopic rods on both sides. A filtration and purification mechanism is connected to the top of the suction and exhaust mechanism. The level sensor output is connected to a relay, which in turn is connected to a microcontroller. The microcontroller outputs to a first solenoid valve, a second solenoid valve, and a third solenoid valve. The first solenoid valve is located on the exhaust pipe. The microcontroller is connected to the output of the electrically controlled telescopic rods. This application facilitates automatic venting of the diesel filter and further adsorption filtration of the exhaust gas to reduce the diesel fuel content.

[0004] Although the aforementioned patent can automatically vent the diesel filter and then adsorb and filter the vented gas to reduce the diesel content in the gas, the venting device and the adsorption and filtration device are in an unprotected state. Therefore, when external equipment collides with the venting device and the adsorption and filtration device, it is easy to cause damage to the components, thereby affecting the normal operation of the diesel filter's automatic venting. Utility Model Content

[0005] This application provides a fuel filter with a self-exhausting structure to solve the problem that the prior art cannot effectively protect the exhaust device and the adsorption filter.

[0006] This application provides a fuel filter with an automatic exhaust structure, including a filter body. A mounting bracket is welded to the outer wall of the filter body. An electric motor is fixedly connected to the bottom of the mounting bracket. The output shaft of the electric motor passes through the bottom of the mounting bracket and is welded to a lead screw. A lead screw nut is connected to the outer wall of the lead screw. The lead screw nut is welded to the inside of a fixing block one. A wear-resistant steel cover is welded to the end of the fixing block one. A fixing block two is welded to the side wall of the wear-resistant steel cover away from the fixing block one. An inner hole is opened inside the fixing block two. A sliding rod is slidably connected inside the inner hole. The sliding rod is welded to the inner side of the mounting bracket. The wear-resistant steel cover has the same outer diameter as the filter body.

[0007] Preferably, a liquid level sensor is installed on the side of the filter body, an oil outlet pipe is opened inside the filter body, an oil inlet pipe is fixedly connected to the bottom of the filter body, and an oil outlet pipe is fixedly connected to the top of the filter body.

[0008] Preferably, an air outlet is provided at the top of the filter body, an exhaust pipe is fixedly connected inside the air outlet, and a solenoid valve is installed outside the exhaust pipe.

[0009] Preferably, a delivery branch pipe is fixedly connected above the exhaust main pipe, and a solenoid valve is installed on the outside of the delivery branch pipe.

[0010] Preferably, a cylinder is fixedly connected to the end of the first conveying branch pipe, a piston is slidably connected inside the cylinder, the piston is sealed to the cylinder, and an electrically controlled telescopic rod is fixedly connected to the side of the piston.

[0011] Preferably, a mounting base is fixedly connected to the bottom of the electrically controlled telescopic rod, a relay is provided on one side of the mounting base, a microcontroller is provided on one side of the relay, and the relay is electrically connected to the microcontroller.

[0012] Preferably, a second delivery branch pipe is fixedly connected to the other side above the main exhaust pipe, a third solenoid valve is installed on the outside of the second delivery branch pipe, a filter box is fixedly connected to one end of the second delivery branch pipe, three sets of diesel filter plates are installed inside the filter box, and a clean gas discharge pipe is fixedly connected to the side of the filter box away from the second delivery branch pipe. Beneficial effects

[0013] Considering the inability of existing technology to effectively protect the exhaust device and the adsorption filter device, an electric motor is operated to drive the lead screw to rotate. This causes the lead screw to move the fixed block containing the lead screw nut to move up and down. When the fixed block moves up and down, it can also move the wear-resistant steel cover up and down, allowing the wear-resistant steel cover to descend to the top of the filter body. This covers the exhaust component and the adsorption filter component, thereby protecting them and preventing them from colliding with each other and damaging the exhaust device.

[0014] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a fuel filter with a self-exhausting structure according to the present invention.

[0017] Figure 2 This is a cross-sectional view of the filter body of a fuel filter with a self-exhausting structure according to the present invention.

[0018] Figure 3 This is an exploded view of the protective mechanism of a fuel filter with a self-exhausting structure according to the present invention.

[0019] Figure 4 This is an exploded view of the exhaust filter assembly of a fuel filter with a self-exhausting structure according to the present invention.

[0020] Figure 5 This is a schematic diagram of the unprotected state of a fuel filter with a self-exhausting structure according to this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Filter body; 2. Liquid level sensor; 3. Oil outlet pipe; 4. Oil inlet pipe; 5. Oil outlet pipe; 6. Mounting bracket; 7. Electric motor; 8. Lead screw; 9. Lead nut; 10. Fixing block one; 11. Wear-resistant steel cover; 12. Fixing block two; 13. Slide rod; 14. Exhaust main pipe; 15. Solenoid valve one; 16. Delivery branch pipe one; 17. Solenoid valve two; 18. Cylinder; 19. Piston; 20. Electrically controlled telescopic rod; 21. Mounting base; 22. Relay; 23. Microcontroller; 24. Delivery branch pipe two; 25. Solenoid valve three; 26. Filter box; 27. Diesel filter element plate; 28. Clean gas discharge pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-5 The fuel filter shown includes a filter body 1, a mounting bracket 6 welded to the outer wall of the filter body 1, an electric motor 7 fixedly connected to the bottom of the mounting bracket 6, an output shaft of the electric motor 7 passing through the bottom of the mounting bracket 6 and welded to a lead screw 8, a lead screw nut 9 connected to the outer wall of the lead screw 8, the lead screw nut 9 welded to the inside of a fixing block 10, a wear-resistant steel cover 11 welded to the end of the fixing block 10, a fixing block 2 12 welded to the side wall of the wear-resistant steel cover 11 away from the fixing block 10, an inner hole opened inside the fixing block 2 12, a sliding rod 13 slidably connected inside the inner hole, the sliding rod 13 welded to the inner side of the mounting bracket 6, and the wear-resistant steel cover 11 having the same outer diameter as the filter body 1.

[0030] The mounting bracket 6 is used to install the automatic lifting mechanism, which facilitates the control of the wear-resistant steel cover 11. The electric motor 7 is used to drive the lead screw 8 to rotate. When the lead screw 8 rotates, it drives the fixed block 10 where the lead screw nut 9 is located to move up and down. The wear-resistant steel cover 11 is used to cover the exhaust assembly and the adsorption filter assembly, thereby achieving the effect of the exhaust assembly and the adsorption filter assembly and preventing the parts from colliding with each other and damaging the exhaust device. The fixed block 12 is used to guide the movement of the wear-resistant steel cover 11, and the slide rod 13 is used to guide the movement of the fixed block 12.

[0031] A liquid level sensor 2 is installed on the side of the filter body 1. An oil outlet pipe 3 is opened inside the filter body 1. An oil inlet pipe 4 is fixedly connected to the bottom of the filter body 1. An oil drain pipe 5 is fixedly connected to the top of the filter body 1.

[0032] Among them, the liquid level sensor 2 is used to measure the liquid level in the filter body 1 and convert this liquid level signal into an electrical signal to turn on the electromagnetic coil of the relay 22. The relay 22 is energized and transmits the signal to the microcontroller 23. The oil outlet pipe 3 is used to store diesel fuel, the oil inlet pipe 4 is used to enter diesel fuel, and the oil outlet pipe 5 is used to discharge diesel fuel that has been purged of gas.

[0033] An air outlet is opened at the top of the filter body 1. An exhaust pipe 14 is fixedly connected inside the air outlet, and a solenoid valve 15 is installed outside the exhaust pipe 14.

[0034] Among them, the exhaust pipe 14 is used to discharge gas, and the solenoid valve 15 is used to control the exhaust of the exhaust pipe 14.

[0035] A delivery branch pipe 16 is fixedly connected above the exhaust main pipe 14, and a solenoid valve 17 is installed on the outside of the delivery branch pipe 16.

[0036] Among them, the first delivery branch pipe 16 is used to deliver gas into the cylinder 18, and the second solenoid valve 17 is used to control the delivery of gas through the first delivery branch pipe 16.

[0037] A cylinder 18 is fixedly connected to the end of the conveying branch pipe 16. A piston 19 is slidably connected inside the cylinder 18. The piston 19 is sealed to the cylinder 18. An electrically controlled telescopic rod 20 is fixedly connected to the side of the piston 19.

[0038] The cylinder 18 is used to extract and temporarily store gas. The electrically controlled telescopic rod 20 drives the piston 19 to move inside the cylinder 18, thereby achieving the effect of temporarily storing or discharging gas.

[0039] The bottom of the electrically controlled telescopic rod 20 is fixedly connected to a mounting base 21. A relay 22 is provided on one side of the mounting base 21, and a microcontroller 23 is provided on one side of the relay 22. The relay 22 and the microcontroller 23 are electrically connected.

[0040] The mounting base 21 is used to fix the electrically controlled telescopic rod 20, which is used to drive the piston 19 to perform telescopic movements. The microcontroller 23 is used to control multiple sets of solenoid valves and the electrically controlled telescopic rod 20.

[0041] A delivery branch pipe 24 is fixedly connected to the other side above the exhaust main pipe 14. A solenoid valve 25 is installed on the outside of the delivery branch pipe 24. A filter box 26 is fixedly connected to one end of the delivery branch pipe 24. Three sets of diesel filter plates 27 are installed inside the filter box 26. A clean gas discharge pipe 28 is fixedly connected to the side of the filter box 26 away from the delivery branch pipe 24.

[0042] Among them, the gas can be transported to the filter box 26 through the second delivery branch pipe 24. The filter box 26 is used to filter and adsorb the gas. The purification and filtration effect is achieved through three sets of diesel filter plates 27, and the filtered gas is discharged through the clean gas discharge pipe 28, thereby reducing the pollution of the environment by unfiltered gas.

[0043] Working principle: When this fuel filter with a self-exhausting structure is used, it prevents air from entering the fuel outlet line.

[0044] 3. When the diesel fuel accumulates above, the diesel fuel level gradually decreases as the air volume increases. When the level sensor 2 detects that the distance between the level sensor and the diesel fuel level is higher than the set height, the level sensor 2 converts this level signal into an electrical signal, causing the electromagnetic coil of relay 22 to conduct. Relay 22 then activates and transmits the signal to microcontroller 23. Microcontroller 23 first controls solenoid valve 3 25 to close and solenoid valves 15 and 2 17 to open. Then, it operates the electrically controlled telescopic rod 20, causing the electric telescopic rod 20 to drive piston 19 to slide within cylinder 18, thus moving the filter... The gas inside body 1 is drawn into cylinder 18. When the liquid level sensor 2 detects that the distance between the liquid level and the diesel fuel level is lower than the set height, the liquid level sensor 2 transmits the signal to relay 22. Relay 22 then transmits the signal to microcontroller 23. Microcontroller 23 controls the electric telescopic rod 20 to stop extending, and controls solenoid valve 3 25 to open and solenoid valve 15 to close. The discharged gas and oil suds are stored in cylinder 18. The diesel fuel flows to the high-pressure oil pump through the oil drain pipe 5 through the one-way valve set inside the filter body 1, ensuring the normal operation of the diesel engine.

[0045] When gas needs to be discharged and filtered, the microcontroller 23 controls the electric telescopic rod 20 to retract. The electric telescopic rod 20 drives the piston 19 to retract inside the cylinder 18, thereby discharging the gas and oil droplets in the cylinder 18 from the first delivery branch pipe 16 to the second delivery branch pipe 24. At this time, the third solenoid valve 25 is open and the first solenoid valve 15 is closed. The gas and oil droplets can only be transported into the filter box 26 through the second delivery branch pipe 24. The gas and oil droplets are adsorbed and filtered by the three sets of diesel filter plates 27 in the filter box 26. Finally, the clean gas is discharged from the clean gas discharge pipe 28, thus enabling the diesel filter to automatically discharge gas.

[0046] When protection of the exhaust assembly and the adsorption filter assembly is required, the electric motor 7 is operated, causing the electric motor 7 to drive the lead screw 8 to rotate. This causes the lead screw 8 to move the fixed block 10, where the lead screw nut 9 is located, to move up and down. When the fixed block 10 moves up and down, it can also move the wear-resistant steel cover 11 up and down, so that the wear-resistant steel cover 11 can be lowered to the top of the filter body 1. This can cover the exhaust assembly and the adsorption filter assembly, thereby protecting the exhaust assembly and the adsorption filter assembly and preventing damage caused by collision between the components.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fuel filter with a self-exhausting structure, comprising a filter body (1), characterized in that: The outer wall of the filter body (1) is welded with a mounting bracket (6). The bottom of the mounting bracket (6) is fixedly connected to an electric motor (7). The output shaft of the electric motor (7) passes through the bottom of the mounting bracket (6) and is welded with a lead screw (8). The outer wall of the lead screw (8) is connected with a lead nut (9). The lead nut (9) is welded inside the fixing block one (10). The end of the fixing block one (10) is welded with a wear-resistant steel cover (11). The side wall of the wear-resistant steel cover (11) away from the fixing block one (10) is welded with a fixing block two (12). The fixing block two (12) has an inner hole. A slide rod (13) is slidably connected inside the inner hole. The slide rod (13) is welded inside the mounting bracket (6). The wear-resistant steel cover (11) has the same outer diameter as the filter body (1).

2. A fuel filter with a self-exhausting structure according to claim 1, characterized in that: A liquid level sensor (2) is installed on the side of the filter body (1), an oil outlet pipe (3) is opened inside the filter body (1), an oil inlet pipe (4) is fixedly connected to the bottom of the filter body (1), and an oil drain pipe (5) is fixedly connected to the top of the filter body (1).

3. A fuel filter with a self-exhausting structure according to claim 1, characterized in that: An air outlet is provided at the top of the filter body (1), and an exhaust pipe (14) is fixedly connected inside the air outlet. A solenoid valve (15) is installed outside the exhaust pipe (14).

4. A fuel filter with a self-exhausting structure according to claim 3, characterized in that: A delivery branch pipe (16) is fixedly connected above the exhaust main pipe (14), and a solenoid valve (17) is installed on the outside of the delivery branch pipe (16).

5. A fuel filter with a self-exhausting structure according to claim 4, characterized in that: The end of the first conveying branch pipe (16) is fixedly connected to a cylinder (18), and a piston (19) is slidably connected inside the cylinder (18). The piston (19) is sealed to the cylinder (18), and an electrically controlled telescopic rod (20) is fixedly connected to the side of the piston (19).

6. A fuel filter with a self-exhausting structure according to claim 5, characterized in that: The bottom of the electrically controlled telescopic rod (20) is fixedly connected to a mounting base (21). A relay (22) is provided on one side of the mounting base (21), and a microcontroller (23) is provided on one side of the relay (22). The relay (22) and the microcontroller (23) are electrically connected.

7. A fuel filter with a self-exhausting structure according to claim 3, characterized in that: A delivery branch pipe two (24) is fixedly connected to the other side above the exhaust main pipe (14). A solenoid valve three (25) is installed on the outside of the delivery branch pipe two (24). A filter box (26) is fixedly connected to one end of the delivery branch pipe two (24). Three sets of diesel filter plates (27) are installed inside the filter box (26). A clean gas discharge pipe (28) is fixedly connected to the side of the filter box (26) away from the delivery branch pipe two (24).

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