A transparent oil filter with pressure sensing
By using transparent connectors, oil cups, and pressure sensors in the oil filter, the problem of not being able to observe and replace the filter element in a timely manner in the existing technology is solved, realizing transparent observation and timely replacement, and reducing equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-31
AI Technical Summary
Existing oil filters are opaque and lack pressure sensing capabilities, making it impossible for operators to observe the internal filtration status and equipment condition. This can lead to delays in replacing filter elements and potentially cause component wear and blockage.
The design incorporates a transparent connector and oil cup, along with a pressure sensor. This allows for observation of the oil's condition through the transparent material and captures data when pressure changes, prompting for filter replacement and preventing impurities from entering critical components.
It enables transparent observation of the oil filtration process, timely replacement of filter elements, reduction of component wear and clogging, lower maintenance costs, and ensures stable equipment operation.
Smart Images
Figure CN224573321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil filter technology, and in particular to a transparent oil filter with pressure sensing. Background Technology
[0002] Oil filters are devices specifically designed to remove impurities and contaminants from various oily fluids such as lubricating oil, hydraulic oil, and fuel oil. They act as "guardians" of the oil, maintaining its cleanliness to extend the service life of mechanical equipment and ensure stable system operation. They are commonly used in precision filtration. In industries such as food processing and pharmaceuticals, oil filters can also ensure that products are not contaminated and maintain high-quality standards.
[0003] Existing oil filters are made of steel or aluminum or other opaque materials. The filter inlet and outlet are connected to the pipeline through opaque connectors, and the oil cup is also opaque. Operators cannot see the oil filtration status inside the filter. Furthermore, traditional oil filters do not have pressure sensors and no pressure detection function, so operators cannot know the true filtration status of the filter. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a transparent oil filter with pressure sensing.
[0005] This utility model is achieved using the following technical solution: a transparent oil filter with pressure sensing, including a transparent connector, a first transparent connector connected inside the transparent connector, a base connected to the end of the first transparent connector away from the transparent connector, a pressure sensor fixedly connected inside the base, a fixed shaft slidably connected to the inner wall of the base, a filter element slidably connected to the outer wall of the fixed shaft, a limit plate contacting the top of the filter element, the limit plate being fixedly connected to the bottom of the base, and a transparent oil cup contacting the bottom of the base.
[0006] Through the above technical solution, the oil enters the transparent oil cup through the transparent connector and the first transparent connector. The transparent connector, the first transparent connector, and the transparent oil cup are all made of transparent material, allowing personnel to clearly observe the state of the oil inside. A limiting plate is fixed at the bottom of the base, and a fixing shaft passes through the inside of the filter element. The fixing shaft and the limiting plate limit the position of the filter element. After the oil passes through the filter element, the impurities inside are absorbed by the filter element, and the clean oil is discharged through the first transparent connector on the other side. A pressure sensor is fixed inside the base. When the amount of foreign matter accumulated on the filter element increases, the resistance of the oil passing through the filter element increases, causing the internal pressure of the equipment to rise. The pressure sensor can capture this pressure change and transmit relevant data, allowing personnel to clearly know the internal state of the equipment.
[0007] As a further improvement to the above solution, a fixing sleeve is fixedly connected to the outer wall of the end of the fixed shaft near the base.
[0008] As a further improvement to the above solution, the fixing sleeve is threadedly connected to the inner wall of the base, and an O-ring is fixedly connected to the inner wall of the fixing sleeve.
[0009] As a further improvement to the above solution, a circlip is provided at the top of the fixed sleeve, and the circlip is sleeved on the outer wall of the fixed shaft.
[0010] As a further improvement to the above solution, a washer is slidably connected to the outer wall of the end of the fixed shaft away from the base, and a nut is threadedly connected to the end of the fixed shaft near the washer.
[0011] With the above technical solution, personnel can replace the filter element by disassembling the fixing sleeve, shaft retaining ring and nut, which prevents unfiltered contaminants from entering key components such as the oil pump, reduces component wear and blockage caused by impurities, protects the normal operation of the equipment and reduces maintenance costs.
[0012] As a further improvement to the above solution, a screw is slidably connected to the inner wall of the base, a fixed lower plate is slidably connected to the outer wall of the screw, a sealing gasket is fixedly connected to the top of the fixed lower plate, and the sealing gasket is in contact with both sides of the transparent oil cup.
[0013] As a further improvement to the above solution, the lower fixing plate is internally threaded with a plug, and the end of the screw near the lower fixing plate is threaded with a nut.
[0014] The above technical solution uses two sealing gaskets to seal the transparent oil cup and prevent oil leakage. At the same time, the nut is threadedly connected to the screw, and the nut presses and fixes the lower plate, thereby squeezing the two sealing gaskets to further prevent liquid leakage. Meanwhile, the plug allows personnel to easily sample and test the internal oil without disassembling the whole unit.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows oil to enter a transparent oil cup through transparent connectors and transparent connector one. All three components (transparent connector, transparent connector one, and transparent oil cup) are made of transparent material, allowing personnel to clearly observe the internal oil condition. A limiting plate is fixed at the bottom of the base, and a fixing shaft passes through the filter element. The fixing shaft and limiting plate limit the position of the filter element. After the oil passes through the filter element, impurities are absorbed and removed. The clean oil is discharged through transparent connector one on the other side. A pressure sensor is fixed inside the base. When more foreign matter accumulates on the filter element, the resistance to oil passing through the filter element increases, causing the internal pressure of the equipment to rise. The pressure sensor can detect this pressure change and transmit relevant data, allowing personnel to clearly understand the internal state of the equipment.
[0016] This invention allows personnel to replace the filter element by disassembling the fixing sleeve, shaft retaining ring, and nut, preventing unfiltered contaminants from entering critical components such as the oil pump. This reduces wear and blockage caused by impurities, protects the normal operation of the equipment, and lowers maintenance costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the base of this utility model; Figure 3 This is a schematic diagram of the fixing sleeve structure of this utility model; Figure 4 This is a schematic diagram of the gasket structure of this utility model; Figure 5 This is a schematic diagram of the fixed lower plate structure of this utility model; Figure 6 This is a schematic diagram of the sealing gasket structure of this utility model; Figure 7 This is a schematic diagram of the overall exploded view of this utility model.
[0018] Explanation of key symbols: 1. Transparent connector; 2. Transparent connector one; 3. Base; 4. Pressure sensor; 5. Fixed shaft; 6. Filter element; 7. Limiting plate; 8. Transparent oil cup; 9. Fixing sleeve; 10. O-ring seal; 11. Shaft snap ring; 12. Washer; 13. Nut; 14. Screw; 15. Fixed lower plate; 16. Sealing gasket; 17. Plug; 18. Nut one. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0020] Example: Please combine Figure 1-7 This embodiment discloses a transparent oil filter with pressure sensing, including a transparent connector 1, a transparent connector 2 connected inside the transparent connector 1, a base 3 connected to the end of the transparent connector 2 away from the transparent connector 1, a pressure sensor 4 fixedly connected inside the base 3, a fixed shaft 5 slidably connected to the inner wall of the base 3, a filter element 6 slidably connected to the outer wall of the fixed shaft 5, a limit plate 7 contacting the top of the filter element 6, the limit plate 7 being fixedly connected to the bottom of the base 3, and a transparent oil cup 8 contacting the bottom of the base 3.
[0021] A fixing sleeve 9 is fixedly connected to the outer wall of the fixed shaft 5 near the base 3.
[0022] The fixing sleeve 9 is threaded to the inner wall of the base 3, and an O-ring 10 is fixedly connected to the inner wall of the fixing sleeve 9.
[0023] A retaining ring 11 for shaft is provided at the top of the fixed sleeve 9, and the retaining ring 11 for shaft is sleeved on the outer wall of the fixed shaft 5.
[0024] A washer 12 is slidably connected to the outer wall of the fixed shaft 5 away from the base 3, and a nut 13 is threadedly connected to the end of the fixed shaft 5 near the washer 12.
[0025] The inner wall of the base 3 is slidably connected to a screw 14, the outer wall of the screw 14 is slidably connected to a fixed lower plate 15, and the top of the fixed lower plate 15 is fixedly connected to a sealing gasket 16. The sealing gasket 16 is positioned on both sides of the transparent oil cup 8.
[0026] The lower plate 15 is internally threaded with a plug 17, and the screw 14 is threaded with a nut 18 at one end near the lower plate 15.
[0027] The implementation principle of a transparent pressure-sensitive oil filter in this embodiment is as follows: Oil enters the transparent oil cup 8 through transparent connector 1 and transparent connector 2. Transparent connector 2 and transparent oil cup 8 are simultaneously connected to the base 3. All three components (transparent connector 1, transparent connector 2, and transparent oil cup 8) are made of transparent material, allowing personnel to clearly observe the internal oil condition. A limiting plate 7 is fixed to the bottom of the base 3, and a fixing shaft 5 passes through the filter element 6. The fixing shaft 5 and the limiting plate 7 limit the position of the filter element 6. After the oil passes through the filter element 6, impurities inside the oil are absorbed by the filter element 6, resulting in clean oil. The oil is discharged through transparent connectors 1 and 2 on the other side. A pressure sensor 4 is fixed inside the base 3. When foreign matter accumulates on the filter element 6, the resistance to oil passing through the filter element 6 increases, causing the internal pressure of the equipment to rise. The pressure sensor 4 can detect this pressure change and transmit relevant data, allowing personnel to clearly understand the internal status of the equipment. Simultaneously, a fixing sleeve 9 is fixed to the outer wall of the fixed shaft 5. The fixing sleeve 9 is threaded to the base 3. An O-ring seal 10 is fixed to the inner wall of the fixing sleeve 9 to prevent oil leakage. At the same time, a shaft retaining spring 11 is sleeved on the outer wall of the fixed shaft 5, thereby limiting the position of the fixed shaft 5. Nut 13 is threadedly connected to fixed shaft 5, thereby squeezing filter element 6 and fixing filter element 6. At the same time, gasket 12 increases the contact area between nut 13 and filter element 6, thereby increasing friction and stabilizing filter element 6. Personnel can replace filter element 6 by disassembling fixed sleeve 9, shaft retainer 11, and nut 13, preventing unfiltered contaminants from entering critical components such as oil pumps, reducing wear and blockage caused by impurities, protecting normal equipment operation, and reducing maintenance costs. Screw 14 slides on the inner wall of base 3, penetrating both base 3 and the lower fixed plate 15. The top is fixed with two sealing gaskets 16, which seal the transparent oil cup 8 to prevent oil leakage. At the same time, the nut 18 is threadedly connected to the screw 14. The nut 18 presses against the lower plate 15, thereby compressing the two sealing gaskets 16 to further prevent liquid leakage. Meanwhile, the plug 17 allows personnel to sample and test the internal oil without disassembling the whole system. The pressure sensor 4 used is the GEFRANTK series, which is available in the prior art. In hydraulic systems, the TK series can accurately measure pressure changes. In this oil filter, the oil pressure can be effectively monitored to ensure the normal operation of the filtration system.
[0028] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A transparent oil filter with pressure sensing, characterized in that, The device includes a transparent connector (1), which has a transparent connector (2) connected inside. A base (3) is connected to the end of the transparent connector (2) away from the transparent connector (1). A pressure sensor (4) is fixedly connected inside the base (3). A fixed shaft (5) is slidably connected to the inner wall of the base (3). A filter element (6) is slidably connected to the outer wall of the fixed shaft (5). A limit plate (7) is provided at the top of the filter element (6). The limit plate (7) is fixedly connected to the bottom of the base (3). A transparent oil cup (8) is provided at the bottom of the base (3).
2. The transparent oil filter with pressure sensing as described in claim 1, characterized in that: A fixing sleeve (9) is fixedly connected to the outer wall of the fixed shaft (5) near the base (3).
3. A transparent oil filter with pressure sensing as described in claim 2, characterized in that: The fixing sleeve (9) is threaded to the inner wall of the base (3), and an O-ring (10) is fixedly connected to the inner wall of the fixing sleeve (9).
4. A transparent oil filter with pressure sensing as described in claim 3, characterized in that: The top of the fixed sleeve (9) is provided with a shaft retaining spring (11), which is sleeved on the outer wall of the fixed shaft (5).
5. A transparent oil filter with pressure sensing as described in claim 4, characterized in that: A washer (12) is slidably connected to the outer wall of the fixed shaft (5) away from the base (3), and a nut (13) is threadedly connected to the end of the fixed shaft (5) near the washer (12).
6. A transparent oil filter with pressure sensing as described in claim 5, characterized in that: The inner wall of the base (3) is slidably connected to a screw (14), the outer wall of the screw (14) is slidably connected to a fixed lower plate (15), the top of the fixed lower plate (15) is fixedly connected to a sealing gasket (16), and the sealing gasket (16) is in contact with both sides of the transparent oil cup (8).
7. A transparent oil filter with pressure sensing as described in claim 6, characterized in that: The fixed lower plate (15) has a plug (17) threaded inside, and the screw (14) has a nut (18) threaded on one end near the fixed lower plate (15).