Aluminum alloy fuel filter upper cover

Abstract

The invention discloses an aluminum alloy fuel filter upper cover, and relates to the technical field of fuel filter upper covers; it comprises an upper cover mounting piece, a pressure relief driving piece is mounted on the upper cover mounting piece, and an anti-leakage pressure relief piece is mounted on the upper cover mounting piece; the pressure relief driving piece is used to drive the anti-leakage pressure relief piece to relieve pressure; the upper cover mounting piece is used to be mounted on the fuel filter; a leakage prompting piece is mounted on the upper cover mounting piece; the leakage prompting piece is used to detect failure of the seal between the upper cover mounting piece and the fuel filter; the pressure relief driving piece can be cooperated with, and when the staff needs to disassemble and connect the upper cover, the anti-leakage pressure relief piece is automatically and preferentially controlled to be squeezed to perform pressure relief work, so as to prevent the staff from forgetting to do so, and avoid safety hazards such as leakage caused by directly unscrewing the connected upper cover; so as to solve the problem that the current aluminum alloy fuel filter upper cover is easy to forget to relieve pressure during manual operation, leakage occurs, and it is inconvenient to detect the sealing quality of the upper cover.

Description

Technical Field

[0001] The invention relates to the technical field of fuel filter upper covers, in particular to an aluminum alloy fuel filter upper cover. Background Art

[0002] The fuel filter is an important component of the vehicle's fuel supply system. The function of the fuel filter is to prevent particulate matter, water and impurities in the fuel, and to protect the precision components of the fuel system from wear and other damage. In order to ensure the filtering quality of the filter element, it is necessary to replace the filter element in time after the filter element reaches its service life. The current aluminum alloy fuel filter cover mostly uses a bolt for pressure relief. It is easy to forget manual operation during actual use, resulting in the oil not being able to flow back in time and leakage. At the same time, it is not convenient to detect the sealing quality of the cover. When the seal fails and other leakages occur, the oil directly overflows, posing a safety hazard and affecting the vehicle's fuel supply pressure. At the same time, the life of the filter element is mostly based on the usage time and observation after disassembly, which is not easy to detect the life of the filter element, and the replacement is not timely when blockage occurs; when the filter element is replaced manually, impurities on the outside of the filter element are also very easy to fall into the filter oil circuit, posing a risk of oil circuit pollution, and it is not convenient to automatically seal and protect when the filter element is removed.

[0003] For this reason, we propose an aluminum alloy fuel filter upper cover. Summary of the invention

[0004] The purpose of the present invention is to provide an aluminum alloy fuel filter upper cover to solve the problem mentioned in the above background technology that the current aluminum alloy fuel filter upper cover is easy to forget to release pressure during manual operation, resulting in leakage, and it is inconvenient to detect the sealing quality of the upper cover.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aluminum alloy fuel filter upper cover, comprising an upper cover mounting member, a pressure relief driving member is installed on the upper cover mounting member, and an anti-leakage pressure relief member is installed on the upper cover mounting member; the pressure relief driving member is used to drive the anti-leakage pressure relief member to relieve pressure; the upper cover mounting member is used to be mounted on the fuel filter; a leakage prompting member is installed on the upper cover mounting member; the leakage prompting member is used to detect the failure of the seal between the upper cover mounting member and the fuel filter; a pressurizing protective member is installed on the upper cover mounting member; the pressurizing protective member is used to seal and fit the fuel filter; a clogging pressure detection part is installed inside the upper cover mounting member; the clogging pressure detection part is used to detect the life of the filter element; a replacement anti-leakage member is installed at the bottom of the upper cover mounting member; the upper cover mounting member comprises: a connecting upper cover and a limiting strip, a circle of limiting strips is fixedly installed inside the connecting upper cover, and a circle of limiting strips is bent at ninety degrees; a circle of limiting strips are spaced at the same interval; a through hole is provided on the top of the connecting upper cover.

[0006] Preferably, the replacement leak-proof part also includes: a magnet, which is provided with two circles, and the two circles of magnets are respectively fixedly mounted on the replacement protective shell and the cover plate; the two circles of magnets are used for mutual magnetic attraction to drive the cover plate to fit the replacement protective shell.

[0007] Preferably, the upper cover mounting member comprises: a closed outer cylinder and an oil drain pipe, the closed outer cylinder is fixedly mounted on the outer side of the connected upper cover; a thread is provided on the outer side of the closed outer cylinder; the oil drain pipe is fixedly mounted on the closed outer cylinder; a valve is provided on the oil drain pipe; the inner side of the closed outer cylinder is a slope structure.

[0008] Preferably, the blockage pressure detection part includes: a closing cover, a detection cylinder, a micro switch, a blockage anti-false touch spring and a blocking sliding column, the closing cover is fixedly installed inside the upper cover; the closing cover is provided with six through holes corresponding to the pressure relief mounting shell; the closing cover is fixedly installed with a detection cylinder; the inside of the detection cylinder is fixedly installed with a micro switch; the inside of the detection cylinder is sleeved with a blockage anti-false touch spring; the detection cylinder is slidably sleeved with a blocking sliding column, and the blockage anti-false touch spring is connected between the detection cylinder and the blocking sliding column; the micro switch is located above the blocking sliding column; the micro switch is electrically connected to the alarm light.

[0009] Preferably, the anti-leakage and pressure relief component includes: a pressure relief mounting shell, a blocking spring, a lifting and sliding column and a pressure relief blocking column, the pressure relief mounting shell is fixedly mounted on the inner side of the connecting upper cover; a blocking spring is fixedly mounted inside the pressure relief mounting shell; a lifting and sliding column is fixedly mounted inside the pressure relief mounting shell, and a blocking spring is sleeved on the outside of the lifting and sliding column; a pressure relief blocking column is slidably mounted on the lifting and sliding column; the outer side of the pressure relief blocking column fits and closes the through hole on the top of the connecting upper cover; the lifting and sliding column is located at the bottom of the downward pressure control column; six through holes are provided at the bottom of the pressure relief mounting shell.

[0010] Preferably, the pressure relief drive component includes: a pressure relief mounting tube, a threaded adjustment tube, a downward pressure control column and an alarm light, the pressure relief mounting tube is fixedly mounted on the connecting upper cover; a thread is provided on the outer side of the pressure relief mounting tube; the thread on the outer side of the pressure relief mounting tube is not opened to the top of the pressure relief mounting tube; the threaded adjustment tube is threadedly connected to the pressure relief mounting tube; a downward pressure control column is fixedly mounted on the inner side of the threaded adjustment tube; an alarm light is fixedly mounted on the top of the threaded adjustment tube; the threaded adjustment tube is used for giving priority to pressure relief when disassembling the connecting upper cover; a hexagonal protrusion is provided on the top of the threaded adjustment tube.

[0011] Preferably, the replacement leakage prevention part includes: a replacement protective shell, a sliding shaft and a cover plate, the replacement protective shell is threadedly connected to the bottom of the upper cover; a circle of sliding shaft is slidably installed on the replacement protective shell; a cover plate is fixedly installed on a circle of the sliding shaft; the cover plate is located inside the replacement protective shell; a circle of through slots is opened at the bottom of the replacement protective shell; the cover plate is used to seal the circle of through slots at the bottom of the replacement protective shell; the interior of the replacement protective shell is used to place the filter element.

[0012] Preferably, the leakage indication component comprises: a leakage installation tube and a sealing ball, wherein the leakage installation tube is fixedly installed on the closed outer tube; the leakage installation tube is a transparent plastic structure; the sealing ball is fittedly sleeved inside the leakage installation tube, and the sealing ball is provided with a rubber coating on the outside.

[0013] Preferably, the pressurized protective component includes: a threaded connection tube and a closed rubber ring, the threaded connection tube is threadedly connected to the outside of the closed outer tube; a closed rubber ring is fitted on the threaded connection tube, and the closed rubber ring is sleeved on the inner inclined surface of the closed outer tube, and the outer side of the closed rubber ring is a slope structure; the inner side of the closed rubber ring is used to fit and seal on the outer ring of the fuel filter; the closed rubber ring is used to form a cavity between the fuel filter and the closed outer tube.

[0014] Preferably, the leakage prompting member further includes: a tension spring, the leakage mounting tube is sleeved with the tension spring, and the end of the tension spring is connected to the inner side of the leakage mounting tube; the other end of the tension spring is connected to the blocking ball; the leakage mounting tube is connected to the closed outer tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention adopts a leak-proof and pressure-relief component that can cooperate with a pressure-relief driving component. When the staff needs to disassemble the connecting cover, the leak-proof and pressure-relief component is automatically and preferentially controlled to be squeezed to perform the pressure relief work, which can prevent the staff from forgetting and avoid safety hazards such as leakage caused by directly unscrewing the connecting cover. The control is simple and the leak-proof and pressure-relief component that can be elastically closed in one direction is used to improve the flexibility of use and make the use method more reasonable.

[0017] The pressurized protective part is used to form a cavity between the fuel filter and the closed outer cylinder, which can be used in conjunction with the leakage indicator to perform leakage monitoring, thereby avoiding undetected leakage, improving safety in use, and preventing the leaked oil from contaminating the vehicle. The oil can be drained and discharged in time. The structure is simple to use, increases sealing performance, and has higher pressure relief protection quality, thereby avoiding undetected leakage, improving safety in use, and preventing the leaked oil from contaminating the vehicle.

[0018] The blockage pressure detection unit uses the pressure existing when the fuel filter is working. It can detect and alarm when the filter element is seriously blocked. This can prevent the filter element from being seriously blocked even though its life cycle has not yet expired. The staff does not need to remove the connection cover frequently for observation.

[0019] Replacing the leak-proof parts can better prevent the filter element from dripping impurities when disassembling it, reducing the difficulty of operation for staff. When taking out the filter element, the oil with mixed impurities on its surface will be isolated and will not easily drip at the fuel filter outlet, making it safer to use. At the same time, it can be turned on and off automatically without manual adjustment, making it more worry-free to use, without affecting the normal oil supply of the oil pump, and ensuring the quality of the oil circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an aluminum alloy fuel filter upper cover of the present invention;

[0021] Figure 2 This is a cross-sectional view of the internal structure of an aluminum alloy fuel filter upper cover of the present invention;

[0022] Figure 3 This is a schematic diagram of the installation position of the pressure relief drive component of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the upper cover mounting member of the present invention;

[0024] Figure 5 For the present invention Figure 2 A magnified view of the structure of the middle B region;

[0025] Figure 6 For the present invention Figure 3 A magnified view of the structure of the middle C region;

[0026] Figure 7 For the present invention Figure 3 A magnified view of the structure of the middle E region;

[0027] Figure 8 For the present invention Figure 2 A magnified view of the structure of the middle F region;

[0028] Fig. 9 It is a schematic diagram of the structure of the closing cover of the present invention;

[0029] Fig.10 For the present invention Figure 2 A magnified view of the structure of the middle D region;

[0030] Fig.11 This is a schematic diagram of the structure of replacing the leakage-proof part of the present invention;

[0031] Fig.12 For the present invention Figure 3Enlarged view of the structure of the middle G region.

[0032] In the figure: 1. Upper cover mounting member; 101. Connecting upper cover; 102. Limiting strip; 103. Closed outer cylinder; 104. Oil drain pipe; 2. Pressure relief drive member; 201. Pressure relief mounting pipe; 202. Threaded adjustment cylinder; 203. Downward pressure control column; 204. Alarm light; 3. Anti-leakage pressure relief member; 301. Pressure relief mounting shell; 302. Blocking spring; 303. Lifting sliding column; 304. Pressure relief blocking column; 4. Leakage reminder member; 40 1. Leakage installation cylinder; 402. Sealing ball; 403. Tension spring; 5. Pressurized protective part; 501. Threaded connection cylinder; 502. Sealing rubber ring; 6. Blocking pressure detection part; 601. Closing cover; 602. Detection cylinder; 603. Micro switch; 604. Blocking anti-mistouch spring; 605. Blocking sliding column; 7. Replacement of leak-proof parts; 701. Replacement of protective shell; 702. Sliding shaft; 703. Cover plate; 704. Magnet. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 12 As shown:

[0035] The present invention provides a technical solution: an aluminum alloy fuel filter upper cover, comprising an upper cover mounting member 1, a pressure relief driving member 2 is mounted on the upper cover mounting member 1, and an anti-leakage pressure relief member 3 is mounted on the upper cover mounting member 1; the pressure relief driving member 2 is used to drive the anti-leakage pressure relief member 3 to relieve pressure; the upper cover mounting member 1 is used to be mounted on the fuel filter; a leakage prompting member 4 is mounted on the upper cover mounting member 1; the leakage prompting member 4 is used to detect the failure of the seal between the upper cover mounting member 1 and the fuel filter; a pressurization protection member is mounted on the upper cover mounting member 1 5; the pressurized protective member 5 is used to seal and fit the fuel filter; a clogging pressure detection unit 6 is installed inside the upper cover mounting member 1; the clogging pressure detection unit 6 is used to detect the life of the filter element; a replacement leak-proof member 7 is installed at the bottom of the upper cover mounting member 1; the upper cover mounting member 1 includes: a connecting upper cover 101 and a limiting strip 102, a circle of limiting strips 102 is fixedly installed inside the connecting upper cover 101, and the circle of limiting strips 102 is bent at ninety degrees; the intervals of the circle of limiting strips 102 are the same; a through hole is provided at the top of the connecting upper cover 101.

[0036] Among them, the upper cover mounting part 1 includes: a closed outer cylinder 103 and an oil drain pipe 104, and the closed outer cylinder 103 is fixedly installed on the outer side of the upper cover 101; the outer side of the closed outer cylinder 103 is provided with threads; the oil drain pipe 104 is fixedly installed on the closed outer cylinder 103; a valve is provided on the oil drain pipe 104; the inner side of the closed outer cylinder 103 is an inclined structure; the pressure relief drive part 2 includes: a pressure relief mounting tube 201, a threaded adjustment tube 202, a downward pressure control column 203 and an alarm light 204, and the pressure relief mounting tube 201 is fixedly installed on the upper cover 101; the outer side of the pressure relief mounting tube 201 is provided with threads; the threads on the outer side of the pressure relief mounting tube 201 are not opened to the top of the pressure relief mounting tube 201; the threaded adjustment tube 202 is threadedly connected to the pressure relief mounting tube 201; the inner side of the threaded adjustment tube 202 is fixedly provided with a downward pressure control column 203; the threaded adjustment tube An alarm light 204 is fixedly installed on the top of 202; the threaded adjustment cylinder 202 is used to give priority to pressure relief when disassembling the connection cover 101; a hexagonal protrusion is provided on the top of the threaded adjustment cylinder 202; the anti-leakage and pressure relief component 3 includes: a pressure relief installation shell 301, a blocking spring 302, a lifting sliding column 303 and a pressure relief blocking column 304, the pressure relief installation shell 301 is fixedly installed on the inner side of the connection cover 101; a blocking spring 302 is fixedly installed inside the pressure relief installation shell 301; a lifting sliding column 303 is fixedly installed inside the pressure relief installation shell 301, and the sealing spring 302 is sleeved on the outside of the lifting sliding column 303; a pressure relief blocking column 304 is slidably installed on the lifting sliding column 303; the outer side of the pressure relief blocking column 304 is fitted and closed at the through hole on the top of the connection cover 101; the lifting sliding column 303 is located at the bottom of the downward pressure control column 203;Six through holes are provided at the bottom of the pressure relief installation shell 301, and the leak-proof pressure relief part 3 can cooperate with the pressure relief drive part 2. When the staff needs to disassemble the connecting cover 101, the leak-proof pressure relief part 3 is automatically and preferentially controlled to be squeezed to perform the pressure relief work, which can prevent the staff from forgetting and avoiding the safety hazards such as leakage caused by directly unscrewing the connecting cover 101. The structure is simple to control and utilizes the leak-proof pressure relief part 3 that can be elastically closed in one direction to improve the flexibility of use and make the use method more reasonable. When the staff needs to disassemble the connecting cover 101, they need to manually rotate the threaded adjustment tube 202, or use a wrench to connect the hexagonal protrusion on the top of the threaded adjustment tube 202 to remove the connecting cover 101. When the threaded adjustment tube 202 is rotated, it will drive the pressure relief installation tube 20 1 is screwed down, thereby driving the downward pressure control column 203 to squeeze the pressure relief plugging column 304, and the pressure relief plugging column 304 moves down and separates from the through hole at the top of the upper cover 101, so that pressure relief can be achieved. Because the tightening force of the upper cover 101 and the fuel filter is relatively large, after the pressure relief plugging column 304 moves down and completely compresses the plugging spring 302, as the threaded adjustment cylinder 202 is continuously turned with force, the upper cover 101 will be driven to rotate together to achieve disassembly. A circle of limit strips 102 is used to insert into the bending gap of the filter element when installing the filter element, increase the stability of the filter element, and promote better oil flow at the interval of the filter element, making full use of the filter element filter material. The number of limit strips 102 is set according to demand, and it is not necessary to set them at all folded intervals of the filter element. ;

[0037] Among them, the leakage indication component 4 includes: a leakage installation tube 401 and a sealing ball 402, the leakage installation tube 401 is fixedly installed on the closed outer tube 103; the leakage installation tube 401 is a transparent plastic structure; the sealing ball 402 is fitted and sleeved inside the leakage installation tube 401, and the sealing ball 402 is provided with a rubber coating on the outside; the leakage indication component 4 also includes: a tension spring 403, the tension spring 403 is sleeved inside the leakage installation tube 401, and the end of the tension spring 403 is connected to the inner side of the leakage installation tube 401; the other end of the tension spring 403 is connected to the sealing ball 402; the leakage installation tube 401 is connected to the closed outer tube 103; the pressurized protective component 5 includes: a threaded connection tube 501 and a closed rubber ring 502, the threaded connection tube 501 is threadedly connected to the outside of the closed outer tube 103; the closed rubber ring 502 is fitted on the threaded connection tube 501, and the closed rubber ring 502 is sleeved on the inner inclined surface of the closed outer tube 103, and the closed rubber ring 502 is sleeved on the inner inclined surface of the closed outer tube 103. The outer side of the ring 502 is a sloped structure; the inner side of the closed rubber ring 502 is used to fit and seal the outer ring of the fuel filter; the closed rubber ring 502 is used to form a cavity between the fuel filter and the closed outer cylinder 103. The pressurized protective member 5 is used to form a cavity between the fuel filter and the closed outer cylinder 103, and the leakage indication member 4 can be used for leakage monitoring to avoid leakage without being detected, which can improve the safety of use. At the same time, it can prevent the leaked oil from polluting the vehicle and can be drained and discharged in time. The structure is simple to use, the sealing performance is increased, and the pressure relief protection quality is higher. Once there is a leak at the connection between the fuel filter and the connecting cover 101, the pressure in the cavity formed between the fuel filter and the closed outer cylinder 103 increases, and the corresponding sealing ball 402 in the leakage installation cylinder 401 will move up under the action of pressure, lengthening the tension spring 403, and the staff can often observe the position of the sealing ball 402.

[0038] The blocking pressure detection unit 6 comprises: a closing cover 601, a detection cylinder 602, a micro switch 603, a blocking false touch prevention spring 604 and a blocking sliding column 605. The closing cover 601 is fixedly mounted inside the upper cover 101; the closing cover 601 is provided with six through holes corresponding to the pressure relief mounting shell 301; the closing cover 601 is fixedly mounted with a detection cylinder 602; the inside of the detection cylinder 602 is fixedly mounted with a micro switch 603; the inside of the detection cylinder 602 is sleeved with a blocking false touch prevention spring 604; the blocking sliding column 605 is slidably sleeved on the detection cylinder 602, and the blocking false touch prevention spring 604 is connected between the detection cylinder 602 and the blocking sliding column 605; the micro switch 603 is located at the blocking sliding column 60 5; the micro switch 603 is electrically connected to the warning light 204; the clogging pressure detection unit 6 is adopted, and the pressure existing when the fuel filter is working is utilized to detect and give an alarm when the filter element is seriously clogged, which can prevent the filter element from being unnoticed when the internal clogging is serious even though the filter element has not reached the end of its service life, and the staff does not need to frequently remove the connecting cover 101 for observation. This structure utilizes the characteristics of the filter element's poor permeability after clogging and the increased pressure between the filter element's exterior and the connecting cover 101, which ensures accurate detection, improves the filter element management quality, and avoids insufficient fuel supply to the vehicle. If the filter element is clogged, the micro switch 603 will control the warning light 204 to light up and give an alarm, ensuring that the filter element can be replaced in time.

[0039] Embodiment 2, on the basis of embodiment 1, the replacement leakage prevention part 7 comprises: replacement protective shell 701, sliding shaft 702 and cover plate 703, the replacement protective shell 701 is threadedly connected to the bottom of the upper cover 101; a circle of sliding shaft 702 is slidably installed on the replacement protective shell 701; a circle of sliding shaft 702 is fixedly installed on the cover plate 703; the cover plate 703 is located inside the replacement protective shell 701; a circle of through slots is provided at the bottom of the replacement protective shell 701; the cover plate 703 is used to block the circle of through slots at the bottom of the replacement protective shell 701; the interior of the replacement protective shell 701 is used to place the filter element; the replacement leakage prevention part 7 also comprises: magnet 704, the magnet 704 is provided with two circles, and the two circles of magnets 704 are respectively fixedly installed on the replacement protective shell 701 and the cover plate 703; the two circles of magnets 704 are used to attract each other, drive the cover plate 703 to fit the replacement protective shell 701, and replace The leak-proof part 7 can have a better effect of preventing impurities from dripping when the filter element is disassembled, reducing the difficulty of operation for the staff. When the filter element is taken out, the oil with mixed impurities isolated on its surface will be isolated and not easy to drip on the oil outlet of the fuel filter. The structure is safer to use and can be automatically switched on and off without manual adjustment, which is more worry-free to use, does not affect the normal oil supply of the oil pump, and ensures the quality of the oil circuit. When the upper cover 101 is removed and connected, the replacement protective shell 701 is driven to move upward, and the sliding shaft 702 loses the extrusion limit of the bottom inner wall of the fuel filter. At this time, under the magnetic force of the magnet 704, they attract each other, and with the gravity of the cover plate 703, the cover plate 703 is driven by the magnet 704 to fit the replacement protective shell 701 for blocking. At this time, when the filter element is taken out, the oil circuit protection effect can be guaranteed. The protective shell 701 can be cleaned and replaced accordingly, and the inside of the fuel filter is cleaner.

[0040] The working principle of this embodiment is as follows: first, when the threaded adjusting cylinder 202 is rotated, it will drive the pressure relief mounting tube 201 to screw downward, thereby driving the downward pressure control column 203 to squeeze the pressure relief blocking column 304, and the pressure relief blocking column 304 moves down and separates from the through hole at the top of the upper cover 101, and pressure relief can be achieved. Because the tightening force between the upper cover 101 and the fuel filter is relatively large, after the pressure relief blocking column 304 moves down and completely compresses the blocking spring 302, as the threaded adjusting cylinder 202 is continued to be rotated with force, the upper cover 101 will be driven to rotate together to achieve disassembly. Correspondingly, when installing the upper cover 101, when the threaded adjusting cylinder 202 is rotated in the opposite direction to the top of the threaded travel of the pressure relief mounting tube 201, the downward pressure control column 203 no longer squeezes the pressure relief blocking column 304, and the blocking spring 302 Under the squeezing, the pressure relief plugging column 304 will seal the connecting cover 101. At this time, the threaded adjustment cylinder 202 is continuously rotated to drive the connecting cover 101 to screw into the fuel filter. After the connecting cover 101 is docked to the fuel filter, the threaded connecting cylinder 501 can be rotated to squeeze the closed rubber ring 502, and the inner inclined surface structure of the closed outer cylinder 103 can be used to shrink and squeeze the closed rubber ring 502 inward to ensure that the closed rubber ring 502 is tightly sealed on the outer wall of the fuel filter. Once there is a leak at the connection between the fuel filter and the connecting cover 101, the pressure in the cavity formed between the fuel filter and the closed outer cylinder 103 increases, and the corresponding sealing ball 402 in the leakage installation cylinder 401 will move up under the action of pressure, stretching the tension spring 403. The staff can often observe the position of the sealing ball 402, as shown in the attached figure. Figure 7 When a large leakage occurs in the middle blocking ball 402, the valve on the oil drain pipe 104 can be opened to drain and discharge; after the closing cover 601 is inserted into the top of the filter element, as the oil pump supplies oil, if the filter element is blocked, the air pressure in the upper cover 101 will increase, and the blocking sliding column 605 will move up under the action of the air pressure, compressing the blocking anti-mistouch spring 604 and touching the micro switch 603. At this time, the micro switch 603 will control the alarm light 204 to light up and give an alarm prompt, ensuring that the filter element can be replaced in time;

[0041] When disassembling the filter element, the filter element is first inserted into the replacement protective shell 701, and the top of the filter element is inserted into the closing cover 601, and then the replacement protective shell 701 is screwed on the bottom of the connecting cover 101 and screwed in. At this time, when the connecting cover 101 is installed on the fuel filter, the replacement protective shell 701 is driven to gradually move downward. At this time, the bottom inner wall of the fuel filter will squeeze the sliding shaft 702, thereby driving the cover plate 703 to move upward. At this time, the two circles of magnets 704 are separated, as shown in the attached Fig.12The cover plate 703 no longer fits and blocks the circle of through slots at the bottom of the replacement protective shell 701. The circle of through slots at the bottom of the replacement protective shell 701 can flow oil normally and be filtered by the filter element. When the corresponding upper cover 101 is removed, the replacement protective shell 701 is driven to move upward, and the sliding shaft 702 loses the extrusion limit of the bottom inner wall of the fuel filter. At this time, under the magnetic force of the magnet 704, they attract each other, and with the gravity of the cover plate 703, the cover plate 703 is driven by the magnet 704 to fit the circle of through slots at the bottom of the replacement protective shell 701 to seal and prevent leakage.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy fuel filter upper cover, comprising an upper cover mounting member (1), a pressure relief driving member (2) being mounted on the upper cover mounting member (1), characterized in that: The upper cover mounting member (1) is provided with a leak-proof pressure relief member (3); the pressure relief driving member (2) is used to drive the leak-proof pressure relief member (3) to relieve pressure; the upper cover mounting member (1) is used to be mounted on a fuel filter; A leakage indicating member (4) is installed on the upper cover mounting member (1); the leakage indicating member (4) is used to detect failure of the seal between the upper cover mounting member (1) and the fuel filter; A pressure-charging protective part (5) is installed on the upper cover mounting part (1); the pressure-charging protective part (5) is used to seal and fit the fuel filter; a clogging pressure detection part (6) is installed inside the upper cover mounting part (1); the clogging pressure detection part (6) is used to detect the life of the filter element; A replaceable leak-proof component (7) is installed at the bottom of the upper cover mounting component (1); The upper cover mounting member (1) comprises: a connecting upper cover (101) and a limiting strip (102); a circle of limiting strips (102) is fixedly mounted inside the connecting upper cover (101); the circle of limiting strips (102) is formed by bending at 90 degrees; the intervals of the circle of limiting strips (102) are the same; and a through hole is provided at the top of the connecting upper cover (101); The pressure relief drive component (2) comprises: a pressure relief installation tube (201), a threaded adjustment tube (202), a downward pressure control column (203) and an alarm light (204); the pressure relief installation tube (201) is fixedly installed on the connection cover (101); the outer side of the pressure relief installation tube (201) is provided with threads; the threads on the outer side of the pressure relief installation tube (201) are not opened to the top of the pressure relief installation tube (201); the threaded adjustment tube (202) is threadedly connected to the pressure relief installation tube (201); the inner side of the threaded adjustment tube (202) is fixedly installed with a downward pressure control column (203); the top of the threaded adjustment tube (202) is fixedly installed with an alarm light (204); the threaded adjustment tube (202) is used for preferentially performing pressure relief when the connection cover (101) is disassembled; The anti-leakage and pressure relief component (3) comprises: a pressure relief installation shell (301), a blocking spring (302), a lifting sliding column (303) and a pressure relief blocking column (304); the pressure relief installation shell (301) is fixedly installed on the inner side of the connecting upper cover (101); the blocking spring (302) is fixedly installed inside the pressure relief installation shell (301); the lifting sliding column (303) is fixedly installed inside the pressure relief installation shell (301), and the sealing spring (302) is sleeved on the outside of the lifting sliding column (303); the pressure relief blocking column (304) is slidably installed on the lifting sliding column (303); the outer side of the pressure relief blocking column (304) is fitted and sealed on the through hole at the top of the connecting upper cover (101); the lifting sliding column (303) is located at the bottom of the downward pressure control column (203); the bottom of the pressure relief installation shell (301) is provided with six through holes; The replaceable leak-proof component (7) comprises: a replaceable protective shell (701), a sliding shaft (702) and a cover plate (703); the replaceable protective shell (701) is threadedly connected to the bottom of the upper cover (101); a circle of sliding shafts (702) is slidably mounted on the replaceable protective shell (701); a circle of the sliding shafts (702) is fixedly mounted on the cover plate (703); the cover plate (703) is located inside the replaceable protective shell (701); a circle of through slots is provided at the bottom of the replaceable protective shell (701); the cover plate (703) is used to block the circle of through slots at the bottom of the replaceable protective shell (701); and a filter element is placed inside the replaceable protective shell (701).

2. The aluminum alloy fuel filter upper cover according to claim 1, characterized in that: The upper cover mounting member (1) comprises: a closed outer cylinder (103) and an oil drain pipe (104); the closed outer cylinder (103) is fixedly mounted on the outer side of the connecting upper cover (101); the outer side of the closed outer cylinder (103) is provided with threads; the oil drain pipe (104) is fixedly mounted on the closed outer cylinder (103); a valve is provided on the oil drain pipe (104); and the inner side of the closed outer cylinder (103) is an inclined surface structure.

3. The aluminum alloy fuel filter upper cover according to claim 2, characterized in that: The leakage indicating member (4) comprises: a leakage installation tube (401) and a sealing ball (402); the leakage installation tube (401) is fixedly installed on the closed outer tube (103); the leakage installation tube (401) is a transparent plastic structure; the sealing ball (402) is fitted and sleeved inside the leakage installation tube (401), and the sealing ball (402) is provided with a rubber coating on the outside.

4. The aluminum alloy fuel filter upper cover according to claim 3, characterized in that: The leakage indicating member (4) further comprises: a tension spring (403); the tension spring (403) is sleeved inside the leakage mounting tube (401), and the end of the tension spring (403) is connected to the inner side of the leakage mounting tube (401); the other end of the tension spring (403) is connected to the sealing ball (402); and the leakage mounting tube (401) is connected to the sealing outer tube (103).

5. The aluminum alloy fuel filter upper cover according to claim 2, characterized in that: The pressurized protective element (5) comprises: a threaded connection cylinder (501) and a closed rubber ring (502); the threaded connection cylinder (501) is threadedly connected to the outside of the closed outer cylinder (103); the threaded connection cylinder (501) is fitted with a closed rubber ring (502), and the closed rubber ring (502) is sleeved on the inner inclined surface of the closed outer cylinder (103); the outer side of the closed rubber ring (502) is an inclined surface structure; the inner side of the closed rubber ring (502) is used to fit and seal the outer ring of the fuel filter; the closed rubber ring (502) is used to form a cavity between the fuel filter and the closed outer cylinder (103).

6. The aluminum alloy fuel filter upper cover according to claim 1, characterized in that: The blocking pressure detection unit (6) comprises: a closing cover (601), a detection cylinder (602), a micro switch (603), a blocking false touch prevention spring (604) and a blocking sliding column (605); the closing cover (601) is fixedly mounted inside the connecting upper cover (101); six through holes corresponding to the pressure relief mounting shell (301) are provided on the closing cover (601); a detection cylinder (602) is fixedly mounted on the closing cover (601); the detection cylinder (602) A micro switch (603) is fixedly installed inside; a blocking anti-accidental touch spring (604) is sleeved inside the detection cylinder (602); a blocking sliding column (605) is slidably sleeved on the detection cylinder (602), and the blocking anti-accidental touch spring (604) is connected between the detection cylinder (602) and the blocking sliding column (605); the micro switch (603) is located above the blocking sliding column (605); and the micro switch (603) is electrically connected to the alarm light (204).

7. The aluminum alloy fuel filter upper cover according to claim 1, characterized in that: The replacement leak-proof component (7) further comprises: a magnet (704), wherein the magnet (704) is provided with two circles, and the two circles of magnets (704) are respectively fixedly mounted on the replacement protective shell (701) and the cover plate (703); the two circles of magnets (704) are used to attract each other magnetically, thereby driving the cover plate (703) to fit the replacement protective shell (701).

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