An oil filter with an oil pressure sensing assembly

CN224606460UActive Publication Date: 2026-08-07SICHUAN LUAO AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN LUAO AUTO PARTS CO LTD
Filing Date
2025-09-16
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]由于机油滤清器长时间使用后,出现故障问题进行停滞,但是机油并没有立刻停止出油,工作人员也无法第一时间判断机油滤清器是否出现故障

Benefits of technology

[0013] When the filter body is working normally, the oil filtered by the filter body enters the oil outlet pipe from the oil outlet and partially flows into the diversion pipe. The oil pressure in the diversion pipe pushes the movable column to overcome the elastic force of the return spring and move towards the inside of the housing. At the same time, it drives the limit column to move synchronously. When the movable column moves a certain distance, the end of the limit column touches and presses down the trigger switch, which connects the circuit and sends a "normal operation" signal to the external monitoring panel. If the filter body is blocked, damaged, or the oil pressure is insufficient, causing the oil pressure in the diversion pipe to drop to a level that cannot overcome the elastic force of the return spring, the return spring will push the movable column back to its original position. The trigger switch will then release and disconnect the circuit. The external monitoring panel will not receive a normal signal and will issue a fault warning, reminding the user that there is an abnormality in the filter body and that it needs to be repaired or replaced in time. This achieves automatic monitoring of the working status of the oil filter.

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Abstract

The utility model discloses an oil filter with oil pressure sensing assembly, including filter body, an oil outlet and multiple oil inlets on filter body, and the oil outlet is connected with the oil outlet pipe, and the oil outlet pipe is equipped with the shunt pipe, and the shunt pipe is sealedly connected with the oil pressure response component, the oil pressure response component includes the casing, and one end of casing is equipped with the connector that is connected with the shunt pipe, and the connector extends to the inside of casing, and is equipped with the movable slot in the end away from casing, and the movable slot is slidably connected with the movable post, and one end of the connector in the casing is equipped with the limit hole, and one end of the movable post in the limit hole is equipped with the limit post that passes out the outside of limit hole, and the limit post is equipped with the reset spring, and one end of reset spring abuts against the movable post, and the other end abuts against movable slot bottom, and the casing is equipped with the response piece, and one side of response piece corresponding limit post is equipped with the trigger switch that is electrically connected with the external monitoring panel, and the utility model discloses the working condition of filter body is monitored through the oil pressure response component.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically an oil filter with an oil pressure sensing component. Background Technology

[0002] The oil filter, also known as an oil strainer, is a key component of a car engine's lubrication system. It removes impurities such as dust, metal particles, carbon deposits, and soot particles generated during oil circulation, preventing these contaminants from entering the engine and effectively reducing wear on parts, thus protecting the engine's normal operation. It is typically replaced at the same time as the engine oil to ensure a clean and efficient lubrication system, playing a vital role in extending engine life, maintaining power performance, and improving fuel economy.

[0003] Because the oil filter malfunctioned after prolonged use and stopped flowing, the oil did not immediately stop flowing, making it impossible for staff to immediately determine whether the oil filter was faulty. Utility Model Content

[0004] The purpose of this invention is to provide an oil filter with an oil pressure sensing component to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An oil filter with an oil pressure sensing component includes a filter body, an oil outlet and multiple oil inlets on the filter body, an oil outlet pipe connected to the oil outlet, a diverter pipe on the oil outlet pipe, and an oil pressure sensing component sealed to the diverter pipe.

[0007] The hydraulic pressure sensing component includes a housing. One end of the housing has a connector that connects to a shunt pipe. The connector extends into the housing and has a movable groove at the end away from the housing. A movable column is slidably connected in the movable groove. The end of the connector inside the housing has a limiting hole. The end of the movable column at the limiting hole has a limiting post extending out of the limiting hole. A return spring is sleeved on the limiting post. One end of the return spring abuts against the movable post, and the other end abuts against the bottom of the movable groove. A sensor is provided inside the housing. The side of the sensor corresponding to the limiting post has a trigger switch that is electrically connected to an external monitoring panel.

[0008] Furthermore, the connector includes a plug portion and an outer abutment portion. The outer diameter of the plug portion is adapted to the inner diameter of the diverter tube and is used to insert into the diverter tube. The outer diameter of the outer abutment portion is larger than the inner diameter of the diverter tube and is used to abut against the end of the diverter tube.

[0009] Furthermore, the insertion part is provided with an annular groove, and a sealing ring is provided on the annular groove. The other side of the sealing ring abuts against the inner wall of the diversion pipe.

[0010] Furthermore, the outer abutment is provided with a connecting ring one at one end of the insertion part, and the outer end of the diverter is provided with a connecting ring two. The connecting ring one and the connecting ring two fit together and are provided with a plurality of locking holes. Each of the plurality of locking holes is provided with a bolt, and the other end of each of the plurality of bolts is threaded with a nut.

[0011] Furthermore, the first connecting ring is provided with a sealing gasket on one side of the second connecting ring, and the other side of the sealing gasket abuts against the second connecting ring.

[0012] The beneficial effects of this utility model are:

[0013] When the filter body is working normally, the oil filtered by the filter body enters the oil outlet pipe from the oil outlet and partially flows into the diversion pipe. The oil pressure in the diversion pipe pushes the movable column to overcome the elastic force of the return spring and move towards the inside of the housing. At the same time, it drives the limit column to move synchronously. When the movable column moves a certain distance, the end of the limit column touches and presses down the trigger switch, which connects the circuit and sends a "normal operation" signal to the external monitoring panel. If the filter body is blocked, damaged, or the oil pressure is insufficient, causing the oil pressure in the diversion pipe to drop to a level that cannot overcome the elastic force of the return spring, the return spring will push the movable column back to its original position. The trigger switch will then release and disconnect the circuit. The external monitoring panel will not receive a normal signal and will issue a fault warning, reminding the user that there is an abnormality in the filter body and that it needs to be repaired or replaced in time. This achieves automatic monitoring of the working status of the oil filter.

[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0015] Figure 1 : Overall structural diagram of this utility model.

[0016] Figure 2 : Exploded view of the connection between the oil pressure sensing component and the oil outlet pipe of this utility model.

[0017] Figure 3 : A cross-sectional view of the connection between the oil pressure sensing component and the oil outlet pipe of this utility model.

[0018] Reference numerals in the attached drawings: 1. Filter body; 2. Oil outlet pipe; 3. Diverter pipe; 4. Oil pressure sensing component; 5. Bolt; 6. Nut; 11. Oil outlet; 12. Oil inlet; 31. Connecting ring two; 32. Locking hole; 41. Housing; 42. Connector; 43. Movable groove; 44. Movable column; 45. Limiting hole; 46. Limiting column; 47. Return spring; 48. Sensing element; 49. Trigger switch; 421. Insertion part; 422. Outer abutment part; 423. Annular groove; 424. Sealing ring; 425. Connecting ring one; 426. Sealing gasket ring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please refer to Figure 1-3 ;

[0021] An oil filter with an oil pressure sensing component includes a filter body 1. The filter body 1 has an oil outlet 11 and multiple oil inlets 12. The filter body 1 adopts a common design and mainly includes a housing, end caps, and filter element assemblies. The end caps are installed on the top of the housing, and the oil outlet 11 and oil inlets 12 are both located on the end caps. The filter element assemblies are located inside the housing and are used to filter engine oil. An oil outlet pipe 2 is connected to the oil outlet 11, and a diverter pipe 3 is provided on the oil outlet pipe 2. The diverter pipe 3 is sealed and connected to an oil pressure sensing component 4. The oil pressure sensing component 4 is used to monitor the flow pressure of the filtered engine oil during the output process, thereby determining whether the filter body 1 is working properly and whether there is any blockage, damage, or abnormal oil pressure, thus realizing the monitoring of the operating status of the filter body 1. The hydraulic pressure sensing component 4 includes a housing 41. One end of the housing 41 has a connector 42 that connects to the diverter pipe 3. The connector 42 extends into the housing 41 and has a movable groove 43 at the end away from the housing 41. A movable column 44 is slidably connected within the movable groove 43 and can move within the groove. The end of the connector 42 inside the housing 41 has a limiting hole 45. The end of the movable column 44 outside the limiting hole 45 has a limiting post 46 extending out of the limiting hole 45. A return spring 47 is sleeved on the limiting post 46. One end of the return spring 47 abuts against the movable column 44, and the other end abuts against the bottom of the movable groove 43, so that the movable column 44 remains in its initial position when there is no hydraulic pressure. A sensor 48 is provided inside the housing 41. A trigger switch 49 is provided on the side of the sensor 48 corresponding to the connector 42. The trigger switch 49 is electrically connected to an external monitoring panel (not shown in the figure) and is used to transmit pressure status signals to the external monitoring panel to monitor the working status of the filter body 1.

[0022] Working principle: When the filter body 1 is working normally, the oil filtered by the filter body 1 enters the oil outlet pipe 2 from the oil outlet 11 and partially flows into the diversion pipe 3. The oil pressure in the diversion pipe 3 pushes the movable column 44 to overcome the elastic force of the return spring 47 and move towards the inside of the housing 41. At the same time, it drives the limit column 46 to move synchronously. When the movable column 44 moves a certain distance, the end of the limit column 46 touches and presses down the trigger switch 49, which connects the circuit and sends a "normal working" signal to the external monitoring panel. If the filter body 1 is blocked, damaged, or the oil pressure is insufficient, causing the oil pressure in the diversion pipe 3 to drop to a level that cannot overcome the elastic force of the return spring 47, the return spring 47 will push the movable column 44 back to its original position. The trigger switch 49 will then release and disconnect the circuit. The external monitoring panel will not receive a normal signal and will issue a fault warning, reminding the user that there is an abnormality in the filter body 1 and that it needs to be repaired or replaced in time. This achieves automatic monitoring of the working status of the oil filter.

[0023] In this embodiment, the connector 42 includes a plug portion 421 and an outer abutment portion 422. The outer diameter of the plug portion 421 is adapted to the inner diameter of the diverter pipe 3 and is used to insert into the diverter pipe 3. The outer diameter of the outer abutment portion 422 is larger than the inner diameter of the diverter pipe 3 and is used to abut against the end of the diverter pipe 3. When the plug portion 421 is inserted into the diverter pipe 3, the outer abutment portion 422 can abut against the end face of the diverter pipe 3, which plays a limiting role, preventing the connector 42 from being inserted too deeply, causing part of it to be located in the oil outlet pipe 2 and affecting the flow of engine oil, thus reducing unnecessary flow resistance.

[0024] In this embodiment, the insertion part 421 is provided with an annular groove 423, and a sealing ring 424 is provided on the annular groove 423. The other side of the sealing ring 424 abuts against the inner wall of the diversion pipe 3. When the connector 42 is inserted into the diversion pipe 3, the outer side of the sealing ring 424 abuts tightly against the inner wall of the diversion pipe 3 to form a sealing structure, preventing oil leakage from the gap between the connector 42 and the diversion pipe 3.

[0025] In this embodiment, the outer abutment 422 is provided with a connecting ring 425 at one end of the insertion part 421, and the outer end of the diversion pipe 3 is provided with a connecting ring 31. The connecting ring 425 fits into the connecting ring 31 and is provided with a plurality of locking holes 32. Each of the locking holes 32 is provided with a bolt 5, and the other end of each bolt 5 is threaded with a nut 6. By tightening the bolts 5 and the nuts 6, the connecting ring 425 and the connecting ring 31 are firmly connected, thereby realizing a stable mechanical connection between the oil pressure sensing component 4 and the diversion pipe 3, and ensuring that the connection part has sufficient strength and vibration resistance.

[0026] In this embodiment, a sealing gasket 426 is provided on one side of the connecting ring 425, which is located next to the connecting ring 31. The other side of the sealing gasket 426 abuts against the connecting ring 31. Under the tightening action of the bolt 5 and the nut 6, the sealing gasket 426 undergoes elastic deformation under pressure, which can fill the tiny gap between the connecting ring 425 and the connecting ring 31, further improving the sealing performance of the connection, preventing oil leakage, improving the sealing reliability and pressure resistance of the connection, and ensuring the long-term stable operation of the oil pressure sensing component 4 under complex working conditions.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An oil filter with an oil pressure sensing component, comprising a filter body (1), wherein the filter body (1) has an oil outlet (11) and a plurality of oil inlets (12), and an oil outlet pipe (2) is connected to the oil outlet (11), characterized in that, The oil outlet pipe (2) is provided with a diversion pipe (3), and the diversion pipe (3) is sealed and connected to an oil pressure sensing component (4); The hydraulic pressure sensing component (4) includes a housing (41). One end of the housing (41) is provided with a connector (42) connected to the diverter pipe (3). The connector (42) extends into the housing (41) and has a movable groove (43) at the end away from the housing (41). A movable column (44) is slidably connected in the movable groove (43). One end of the connector (42) located in the housing (41) is provided with a limiting hole (45). One end of the movable column (44) located in the limiting hole (45) is provided with a limiting column (46) extending out of the limiting hole (45). A return spring (47) is sleeved on the limiting column (46). One end of the return spring (47) abuts against the movable column (44) and the other end abuts against the bottom of the movable groove (43). A sensing element (48) is provided in the housing (41). A trigger switch (49) electrically connected to an external monitoring panel is provided on the side of the sensing element (48) corresponding to the limiting column (46).

2. An oil filter with an oil pressure sensing component according to claim 1, characterized in that, The connector (42) includes a plug-in part (421) and an outer abutment part (422). The outer diameter of the plug-in part (421) is adapted to the inner diameter of the diverter pipe (3) and is used to be inserted into the diverter pipe (3). The outer diameter of the outer abutment part (422) is larger than the inner diameter of the diverter pipe (3) and is used to abut against the end of the diverter pipe (3).

3. An oil filter with an oil pressure sensing component according to claim 2, characterized in that, The insertion part (421) is provided with an annular groove (423), and a sealing ring (424) is provided on the annular groove (423). The other side of the sealing ring (424) abuts against the inner wall of the diversion pipe (3).

4. An oil filter with an oil pressure sensing component according to claim 2, characterized in that, The outer abutment (422) is provided with a connecting ring 1 (425) at one end of the insertion part (421), and the outer end of the diversion pipe (3) is provided with a connecting ring 2 (31). The connecting ring 1 (425) fits into the connecting ring 2 (31) and is provided with a plurality of locking holes (32). Each of the plurality of locking holes (32) is provided with a bolt (5), and the other end of each of the plurality of bolts (5) is threaded with a nut (6).

5. An oil filter with an oil pressure sensing component according to claim 4, characterized in that, The first connecting ring (425) is provided with a sealing gasket (426) on one side of the second connecting ring (31), and the other side of the sealing gasket (426) abuts against the second connecting ring (31).