Fine oil filtering trolley

By setting a stop structure in the first fine filter cartridge of the oil filter cart, the liquid level sensing mechanism of the float ball and the reed tube is used to solve the problem of motor idle caused by too low oil, extend the equipment life and improve the filtration efficiency.

CN222239169UActive Publication Date: 2024-12-27NANTONG ZHONGLONG HYDRAULIC CO LTD
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Patent Information

Application Number
CN202420993195.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-09
Publication Date
2024-12-27
Estimated Expiration
2034-05-09

AI Technical Summary

Technical Problem

Traditional oil filter trucks lack liquid level alarm devices, which causes the motor to idle when the oil is too low, damage the oil pump and delay the filtration efficiency.

Method used

A fine oil filter car is designed, adopting a stop structure in the first fine filter cartridge, including a guide rod, a float, a magnet and a reed tube. When the oil level is lower than the set height, the float will touch the The reed tube, the magnet sends a signal to stop the motor from driving the oil pump, preventing idling, and the liquid level is indicated by the LED alarm light.

Benefits of technology

Effectively prevent damage to the motor and oil pump, extend service life, improve oil filtration efficiency, and ensure the continuity and efficiency of the filtration process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222239169U_ABST
    Figure CN222239169U_ABST
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Abstract

The utility model relates to the technical field of oil filtering and processing equipment, and discloses a fine oil filtering trolley, which comprises a coarse filter cartridge, a first fine filter cartridge and a second fine filter cartridge which are positioned on the trolley, the coarse filter cartridge is input into the first fine filter cartridge through an oil pump, trundles are arranged below the trolley, a stop structure is arranged in the first fine filter cartridge, and the second fine filter cartridge is arranged in the second fine filter cartridge. The stop structure comprises a guide rod, a floating ball, a magnet and a reed switch, the guide rod penetrates through the floating ball, the magnet is located in the floating ball, and hooks are arranged on the two sides of the first fine filter cartridge and the second fine filter cartridge. A stop device is arranged in a first fine filter cartridge, when the liquid level of oil in the first fine filter cartridge is low, a floating ball falls to the position of a reed pipe of a guide rod along the liquid level, then a magnet in the floating ball generates suction force on the reed pipe, and then the reed pipe is internally communicated and sends a signal to the outside, so that a motor stops running; idling of the motor due to the low liquid level can be effectively prevented, and the service life of the whole device is effectively prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil filtering and processing equipment, in particular to a fine oil filtering trolley. Background Art

[0002] The traditional filtering cart is not equipped with an alarm device. When the oil in the filter cartridge is too low, the motor is still driving the oil pump, and it will idle at this time. It will not only damage the oil pump and motor, but also waste resources. The filtering process of the oil pump will also slow down, delaying the filtering efficiency of the oil.

[0003] In the document CN202220770699, an oil filter trolley is disclosed, including. The oil filter trolley includes a base plate, two push rods with mirror distribution are fixedly installed at one end of the top of the base plate, rollers are installed at the four corners of the bottom of the base plate, a cylinder is installed at the bottom center of the base plate, and the output end of the cylinder passes through the base plate and is fixedly connected to a support plate, and an oil filter device is installed on the top of the support plate. In this structure, there is no alarm device. If the internal oil level is low, the internal drive device will idle, reducing the service life of the drive device and slowing down the filtering speed of the oil.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0005] In order to solve the above problems, the utility model discloses a fine oil filter trolley, which can protect the motor and the oil pump, prevent idling, extend the service life, and improve the efficiency of filtering oil.

[0006] The technical solution of the utility model is: a fine oil filter trolley, comprising a coarse filter cartridge, a first fine filter cartridge, a second fine filter cartridge and an electrical control box located on the trolley, the coarse filter cartridge is input into the first fine filter cartridge through an oil pump, casters are provided under the trolley, a stop structure is provided in the first fine filter cartridge, the stop structure comprises a guide rod, a float, a magnet and a reed switch, the guide rod passes through the float, the magnet is located in the float, and hooks are provided on both sides of the first fine filter cartridge and the second fine filter cartridge.

[0007] By adopting the above technical solution, the oil is filtered through the coarse filter cartridge, the first fine filter cartridge and the second fine filter cartridge to improve the purity of the oil. When the oil level in the first fine filter cartridge is lower than the set height, the motor stops driving the oil pump to prevent the oil pump from idling, protect the device, and extend the overall service life of the device.

[0008] Preferably, the guide rod is hollow inside, the reed switch is located at the lower part of the hollow part of the guide rod, a magnet is provided in the float, a through groove is provided in the middle of the float for the guide rod to pass through, a limit plate is provided at the bottom of the guide rod, and the diameter of the limit plate is larger than the diameter of the through groove.

[0009] By adopting the above technical solution, the guide rod runs through the inside of the float, and the float can move up and down on the guide rod according to the liquid level. The limit plate at the bottom of the guide rod can prevent the float from slipping off the guide rod, so that the float always keeps moving up and down on the guide rod. When the float reaches the position of the reed switch, the inside of the reed switch is connected, and then a signal is sent to the outside, indicating that the liquid level is low, so that the motor stops driving the oil pump.

[0010] Preferably, the oil pump is driven by a motor, the motor is connected to the control electrical in the electrical control box, and the reed switch is connected to the control electrical in the electrical control box through a signal line.

[0011] By adopting the above technical solution, when the reed switch is connected through the magnet, the reed switch sends a signal to control the electrical control motor to stop rotating, so that the oil pump stops absorbing the oil.

[0012] Preferably, the coarse filter cartridge, the first fine filter cartridge and the second fine filter cartridge are located on the base plate, and the casters are located at the bottom of the base plate, wherein the casters on one side are a pair of universal casters.

[0013] By adopting the above technical solution, the universal casters can be moved to adapt to different working positions and working scenes, thereby improving the overall adaptability of the device.

[0014] Preferably, the coarse filter cartridge is connected to external oil, the filtration accuracy of the coarse filter cartridge is 90-110 μm, and the coarse filter cartridge is located near the bottom plate of the trolley.

[0015] By adopting the above technical solution, the coarse filter cartridge can simply filter the oil, and then pump the oil through the oil pump and pump it into the first fine filter cartridge.

[0016] Preferably, the filtration accuracy of the first fine filter cartridge is 25-35μm, and the filtration accuracy of the second fine filter cartridge is 8-12μm. The first fine filter cartridge and the second fine filter cartridge are adjacent to each other and connected through an oil port. The oil port is located at the lower part between the first fine filter cartridge and the second fine filter cartridge, and an oil outlet is provided on the second fine filter cartridge.

[0017] By adopting the above technical solution, after the oil is pumped into the first fine filter cartridge by the oil pump, it is filtered and then enters the second fine filter cartridge through the oil port, thereby further filtering the oil.

[0018] Preferably, an exhaust valve is provided on the top of the second fine filter cartridge, a manual push handle is provided on the back of the first fine filter cartridge and the second fine filter cartridge, a pressure gauge is provided on the first fine filter cartridge, an LED alarm light is provided on the electrical control box, and the LED alarm light is electrically connected to the control.

[0019] By adopting the above technical solution, the pressure gauge can monitor the internal pressure value at all times. When there is a pressure difference between the second fine filter cartridge and the outside, the inside can be exhausted through the exhaust valve on the top to ensure that the pressure inside and outside is consistent. When the liquid level is low and the reed switch sends a signal to the control electronics, the control electronics controls the LED alarm light to light up and send a signal.

[0020] Preferably, the hook is in an upward L-shape, and the hook is used to hang the oil pipe.

[0021] By adopting the above technical solution, the arrangement and placement of the inlet and outlet oil pipes are facilitated.

[0022] The benefits of the utility model are as follows: 1. The utility model arranges a stop device in the first fine filter cartridge. When the oil level in the first fine filter cartridge is low, the float falls along the liquid level to the position of the reed switch of the guide rod, and then the magnet in the float generates suction to the reed switch, which is then connected to send a signal to the outside to stop the motor, which can effectively prevent the motor from idling due to the low liquid level inside, and effectively protect the overall service life of the device.

[0023] 2. The utility model can make the pressure between the filter cartridge and the outside consistent by setting the exhaust valve, thereby ensuring the effective filtering work.

[0024] 3. The utility model can facilitate the oil filtering work of the oil filter trolley by installing a stopper and a push handle on the device, thereby improving the efficiency of oil filtering and improving the overall production efficiency of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the stop structure of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the front view of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the side view of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the rear view of the utility model.

[0029] Among them: 1. coarse filter cartridge, 2. first fine filter cartridge, 21. oil port, 3. guide rod, 31. reed switch, 32. float, 321. through slot, 33. magnet, 34. limit plate, 4. second fine filter cartridge, 41. oil outlet, 5. oil pump, 6. pressure gauge, 7. LED warning light, 8. exhaust valve, 9. hook, 10. manual push handle, 11. electrical control box, 12. bottom plate, 13. casters, 14. universal casters, 15. motor, 16. oil inlet. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-4 As shown, the fine oil filter trolley includes a coarse filter cartridge 1, a first fine filter cartridge 2, a second fine filter cartridge 4 and an electrical control box 11 located on the manual push handle. The coarse filter cartridge 1 is input into the first fine filter cartridge 2 through an oil pump 5. A caster 13 is provided under the trolley. A stop structure is provided in the first fine filter cartridge 2. The stop structure includes a guide rod 3, a float 32, a magnet 33 and a reed switch 31. The guide rod 3 passes through the float 32. The magnet 33 is located in the float 32. Hooks 9 are provided on both sides of the first fine filter cartridge 2 and the second fine filter cartridge 4. The oil is filtered through the coarse filter cartridge 1, the first fine filter cartridge 2 and the second fine filter cartridge 4 to improve the purity of the oil. When the oil level in the first fine filter cartridge 2 is lower than the set height, the motor 15 stops driving the oil pump 5 to prevent the oil pump 5 from idling, protect the device, and extend the overall service life of the device.

[0032] The guide rod 3 is hollow inside, and the reed switch 31 is located at the lower part of the hollow part of the guide rod 3. The position where the reed switch 31 is placed is the position where the device alarms. The reed switch 31 can be placed at the required appropriate alarm height as needed. A magnet 33 is provided in the float 32, and a through groove 321 is provided in the middle of the float 32 for the guide rod 3 to pass through. A limit plate 34 is provided at the bottom of the guide rod 3. The diameter of the limit plate 34 is larger than the diameter of the through groove 321. The guide rod 3 passes through the inside of the float 32. The float 32 can move up and down on the guide rod 3 according to the height of the liquid level. The limit plate 34 at the bottom of the guide rod 3 can prevent the float 32 from slipping off the guide rod 3, so that the float 32 always keeps moving up and down on the guide rod 3. When the float 32 reaches the position of the reed switch 31, the inside of the reed switch 31 is connected, and then a signal is sent to the outside, indicating that the liquid level is low, so that the motor 15 stops driving the oil pump 5.

[0033] The oil pump 5 is driven by the motor 15, the motor 15 is connected to the control electrical in the electrical control box 11, and the reed switch 31 is connected to the control electrical in the electrical control box 11 through a signal line. When the reed switch 31 is connected through the magnet 33, the reed switch 31 sends a signal to control the electrical control motor 15 to stop rotating, so that the oil pump 5 stops absorbing the oil.

[0034] The coarse filter cartridge 1, the first fine filter cartridge 2 and the second fine filter cartridge 4 are located on the base plate 12, and the casters 13 are located at the bottom of the base plate 12. The casters 13 on one side are a pair of universal casters 14. The universal casters 14 can be moved to adapt to different working positions and working scenes to improve the overall adaptability of the device.

[0035] The coarse filter cartridge 1 is connected to the external oil and is provided with an oil inlet 16. The filtering accuracy of the coarse filter cartridge 1 is 90-110 μm. The coarse filter cartridge 1 is located near the bottom plate 12 of the trolley. The coarse filter cartridge 1 can simply filter the oil and then pump the oil into the first fine filter cartridge 2 through the oil pump 5.

[0036] The filtering accuracy of the first fine filter cartridge 2 is 25-35μm, and the filtering accuracy of the second fine filter cartridge 4 is 8-12μm. The first fine filter cartridge 2 and the second fine filter cartridge 4 are adjacent to each other and connected by an oil port 21. The oil port 21 is located at the lower position between the first fine filter cartridge 2 and the second fine filter cartridge 4. The second fine filter cartridge 4 is provided with an oil outlet. When the oil is pumped into the first fine filter cartridge 2 by the oil pump 5, after filtering, it enters the second fine filter cartridge 4 through the oil port 21, thereby further filtering the oil. After filtering, the oil is released from the second fine filter cartridge 4 from the oil outlet 41.

[0037] An exhaust valve 8 is provided on the top of the second fine filter cartridge 4, a manual push handle 10 is provided on the back of the first fine filter cartridge 2 and the second fine filter cartridge 4, a pressure gauge 6 is provided on the first fine filter cartridge 2, and an LED alarm light 7 is provided on the electrical control box 11. The LED alarm light 7 is connected to the control electrical system, and the pressure gauge 6 can monitor the internal pressure value at all times. When there is a pressure difference between the second fine filter cartridge 4 and the outside, the interior can be exhausted through the exhaust valve 8 on the top to ensure that the pressure inside and outside is consistent. When the liquid level is low and the reed switch 31 sends a signal to the control electrical system, the control electrical system controls the LED alarm 7 to light up and send a signal.

[0038] The hook 9 is in an upward L-shape, and the hook 9 is used to hang the oil pipe, so as to facilitate the arrangement and placement of the in-and-out oil pipe.

[0039] Working principle, the oil enters the oil inlet 16 to the coarse filter cylinder 1, and the oil pump 5 is driven by the motor 15. The oil pump 5 transports the oil in the coarse filter cylinder 1 to the first fine filter cylinder 2, and then the oil in the first fine filter cylinder 2 is passed into the second fine filter cylinder 4 to complete the filtration of the oil. During the filtration process, if the liquid level in the first fine filter cylinder 2 reaches the alarm level, the float 32 also reaches the outside of the reed switch 31 of the guide rod 3 with the liquid level, and then the magnet 33 in the float 32 acts on the reed switch 31, making the reed switch 31 conductive, and then sends a signal alarm to the electrical control box 11.

[0040] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention, and the purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the implementation methods of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A fine oil filter trolley, comprising a coarse filter cartridge, a first fine filter cartridge, a second fine filter cartridge and an electrical control box on a manual push handle, wherein the coarse filter cartridge is fed into the first fine filter cartridge through an oil pump, and casters are provided under the trolley, characterized in that: A stop structure is provided in the first fine filter cartridge, and the stop structure includes a guide rod, a float, a magnet and a reed switch. The guide rod passes through the float, and the magnet is located in the float. Hooks are provided on both sides of the first fine filter cartridge and the second fine filter cartridge.

2. The fine oil filter trolley according to claim 1 is characterized in that: The guide rod is hollow inside, the reed switch is located at the lower part of the hollow part of the guide rod, a magnet is arranged in the float, a through slot is arranged in the middle of the float for the guide rod to pass through, a limiting plate is arranged at the bottom of the guide rod, and the diameter of the limiting plate is larger than the diameter of the through slot.

3. The fine oil filter trolley according to claim 1 is characterized in that: The oil pump is driven by a motor, the motor is connected to the control electrical in the electrical control box, and the reed switch is connected to the control electrical in the electrical control box through a signal line.

4. The fine oil filter trolley according to claim 1 is characterized in that: The coarse filter cartridge, the first fine filter cartridge and the second fine filter cartridge are located on a base plate, and the casters are located at the bottom of the base plate, wherein the casters on one side are a pair of universal casters.

5. The fine oil filter trolley according to claim 4 is characterized in that: The coarse filter cartridge is connected to external oil, the filtering accuracy of the coarse filter cartridge is 90-110 μm, and the coarse filter cartridge is located at a position close to the bottom plate of the trolley.

6. The fine oil filter cart according to claim 1 is characterized in that: The filtering accuracy of the first fine filter cartridge is 25-35μm, and the filtering accuracy of the second fine filter cartridge is 8-12μm. The first fine filter cartridge and the second fine filter cartridge are adjacent to each other and connected through an oil port. The oil port is located at the lower part between the first fine filter cartridge and the second fine filter cartridge. The second fine filter cartridge is provided with an oil outlet.

7. The fine oil filter cart according to claim 3 is characterized in that: The second fine filter cartridge is provided with an exhaust valve on the top, the first fine filter cartridge and the second fine filter cartridge are provided with manual push handles on the back, the first fine filter cartridge is provided with a pressure gauge, the electrical control box is provided with an LED alarm light, and the LED alarm light is electrically connected to the control.

8. The fine oil filter cart according to claim 1 is characterized in that: The hook is in an upward L-shape and is used for hanging the oil pipe.

Citation Information

Patent Citations

  • Oil filtering trolley

    CN217374533U