Automatic pressure regulating type oil filter

Abstract

According to the technical scheme, the automatic pressure regulating type engine oil filter comprises a protective cylinder, an oil outlet pipe is inserted in the middle of the interior of the protective cylinder in a sealed mode, a plurality of oil inlet holes located in the periphery of the oil outlet pipe are formed in the top of the protective cylinder at equal angles, and a filter cylinder is fixed to the middle of the interior of the protective cylinder. The oil outlet pipe extends into the bottom of the filter cartridge, filter paper is inserted outside the filter cartridge, the upper portion of the filter paper is inclined, the outer diameter of the top of the filter paper is smaller than that of the lower portion of the filter paper, the circle centers of the oil inlet holes are located on the outer diameter of the lower portion of the filter paper, and the radius of the oil inlet holes is equal to the outer diameter difference of the top and the lower portion of the filter paper. Due to the fact that the inclined portion of the upper portion of the filter paper and the circle center of the oil outlet are located on the outer diameter of the lower portion of the filter paper, part of engine oil can be directly filtered into the filter cylinder through impact force generated by falling through the inclined portion when the engine oil enters the protective cylinder through the oil inlet, and the filtering speed is increased under the condition that the filtering effect is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of oil filters, in particular to an automatic pressure regulating oil filter. Background Art

[0002] The oil filter, also known as the oil filter, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the engine oil to protect the engine. Oil filters are divided into full-flow and split-flow types. Full-flow filters are connected in series between the oil pump and the main oil gallery, filtering all the lubricating oil entering the gallery. Split-flow filters are connected in parallel with the main oil gallery and filter only the portion of lubricating oil delivered by the oil pump.

[0003] Currently, the filter paper in the oil filter is often cylindrical, which means that when filtering the oil, it can only rely on the oil spreading around, which leads to poor filtering efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an automatic pressure-regulating oil filter.

[0005] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0006] An automatic pressure-regulating oil filter comprises a protective cylinder, an oil outlet pipe being sealed and plugged into the middle of the protective cylinder, a plurality of oil inlet holes being provided at equal angles around the oil outlet pipe at the top of the protective cylinder, a filter cartridge being fixed in the middle of the protective cylinder, the oil outlet pipe extending into the bottom of the filter cartridge, filter paper being plugged into the outside of the filter cartridge, the upper portion of the filter paper being arranged in an inclined state, and the outer diameter of the top being smaller than the outer diameter of the lower portion, the centers of the oil inlet holes being all located on the outer diameter of the lower portion of the filter paper, and the radius of the oil inlet holes being the difference between the outer diameters of the top and the lower portion of the filter paper.

[0007] Preferably, the vertical height of the upper inclined portion of the filter paper is not less than one fifth of the overall height of the filter paper.

[0008] Preferably, the inner diameter of the oil outlet pipe is half the inner diameter of the filter cartridge.

[0009] Preferably, the upper part of the oil outlet pipe is set as a T-shaped tube, and a pressure spring is fixed on the inner wall of the part of the oil outlet pipe parallel to the top surface of the protective tube, and a pressure ball is fixed at the end of the pressure spring in the part perpendicular to the oil outlet pipe and the top surface of the protective tube.

[0010] Preferably, when the pressure spring is in a normal state, the pressure ball falls below the T-shaped opening in the oil outlet pipe due to gravity.

[0011] Preferably, the protective tube includes an upper tube and a lower tube, the bottom of the upper tube is arranged in a stepped shape, and the lower tube is threadedly connected to the stepped portion of the bottom of the upper tube.

[0012] Preferably, a sealing gasket is provided at the bottom of the lower cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model has an inclined portion on the upper part of the filter paper and the center of the oil outlet hole is located on the outer diameter of the lower part of the filter paper. When the engine oil passes through the oil inlet hole and enters the protective cylinder, a part of it will directly fall to the bottom of the protective cylinder and spread toward the filter paper to be filtered. At the same time, another part will be directly filtered into the filter cylinder by the impact force generated by the falling through the inclined portion. The filtered impurities will also fall to the bottom of the protective cylinder by being flushed by the engine oil. The filtration speed is increased without affecting the filtration effect, thereby improving the filtration efficiency and further improving the practical value.

[0015] 2. The utility model uses the oil outlet pipe to impact the pressure ball. The pressure ball is first impacted and rises to the T-shaped port in the oil outlet pipe. Then the pressure spring realizes the lateral movement of the pressure ball. The oil output is changed by changing the extraction force, thereby realizing automatic pressure regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components.

[0017] in:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the upper cylinder of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the filter paper of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the oil outlet pipe of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the lower drum of the utility model.

[0023] Explanation of the markings in the figure: 1. Protective tube; 2. Oil outlet pipe; 3. Oil inlet hole; 4. Upper tube;

[0024] 5. Filter cartridge; 6. Filter paper; 7. Pressure spring; 8. Pressure ball; 9. Lower cartridge; 10. Sealing gasket. DETAILED DESCRIPTION

[0025] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the present invention.

[0026] like Figure 1 As shown, as an automatic pressure regulating oil filter of the present invention, it includes a protective cylinder 1, and the protective cylinder 1 includes an upper cylinder 4 and a lower cylinder 9. Figure 2 As shown, the bottom of the upper cylinder 4 is set to be stepped, and the outer portion of the stepped portion at the bottom of the upper cylinder 4 is set to be externally threaded, as shown in FIG. Figure 5 As shown, the upper inner portion of the lower cylinder 9 is provided with an internal thread, and the lower cylinder 9 is threadedly connected to the external thread of the stepped portion at the bottom of the upper cylinder 4 through the internal thread. A sealing gasket 10 is provided at the inner bottom of the lower cylinder 9. The threaded connection facilitates disassembly work, and is convenient for daily maintenance and cleaning of impurities, thereby helping to extend the service life of the oil filter. At the same time, the sealing effect is ensured by the sealing gasket 10 to avoid leakage of oil.

[0027] The oil outlet pipe 2 is sealed and plugged into the middle of the protective tube 1. Figure 4 As shown, the upper part of the oil outlet pipe 2 is set as a T-shaped tube, and a pressure spring 7 is fixed on the inner wall of the part of the oil outlet pipe 2 parallel to the top surface of the protective tube 1, and a pressure ball 8 is fixed at the end of the pressure spring 7 and is located in the part perpendicular to the top surface of the oil outlet pipe 2 and the protective tube 1. When the pressure spring 7 is in normal state, the pressure ball 8 falls to the bottom of the T-shaped opening in the oil outlet pipe 2 due to gravity, and the oil discharged through the oil outlet pipe 2 impacts the pressure ball 8. The pressure ball 8 is first impacted and rises to the T-shaped opening in the oil outlet pipe 2, and then the pressure spring 7 realizes the lateral movement of the pressure ball 8, so that the oil output is changed by changing the extraction force, thereby realizing automatic pressure regulation and increasing the scope of application.

[0028] The top of the protective cylinder 1 is provided with a number of oil inlet holes 3 around the oil outlet pipe 2 at equal angles. A filter cartridge 5 is fixed on the top of the upper cylinder 4. The oil outlet pipe 2 extends into the bottom of the filter cartridge 5. Figure 3The oil filter 5 is provided with a filter paper 6, and the filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom. The filter paper 6 is provided with a filter paper 6 at the bottom.

[0029] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the scope of protection of the present invention.

Claims

1. An automatic pressure regulating oil filter, characterized by: The invention comprises a protective cylinder (1), wherein an oil outlet pipe (2) is sealed and plugged into the middle of the protective cylinder (1), a plurality of oil inlet holes (3) are opened at equal angles on the top of the protective cylinder (1) and are located around the oil outlet pipe (2), a filter cylinder (5) is fixed in the middle of the protective cylinder (1), the oil outlet pipe (2) extends into the bottom of the filter cylinder (5), a filter paper (6) is plugged into the outside of the filter cylinder (5), the upper part of the filter paper (6) is arranged in an inclined state, and the outer diameter of the top is smaller than the outer diameter of the lower part, the center of each of the oil inlet holes (3) is located on the outer diameter of the lower part of the filter paper (6), and the radius of the oil inlet hole (3) is the difference between the outer diameters of the top and the lower part of the filter paper (6).

2. The automatic pressure regulating oil filter according to claim 1, characterized in that: The vertical height of the upper inclined portion of the filter paper (6) is not less than one fifth of the overall height of the filter paper (6).

3. The automatic pressure regulating oil filter according to claim 2, characterized in that: The inner diameter of the oil outlet pipe (2) is half the inner diameter of the filter cartridge (5).

4. The automatic pressure regulating oil filter according to claim 3, characterized in that: The upper portion of the oil outlet pipe (2) is configured as a T-shaped pipe, a pressure spring (7) is fixed on the inner wall of the portion of the oil outlet pipe (2) parallel to the top surface of the protective tube (1), and a pressure ball (8) is fixed at the end of the pressure spring (7) in the portion perpendicular to the top surface of the oil outlet pipe (2) and the protective tube (1).

5. The automatic pressure regulating oil filter according to claim 4, characterized in that: When the pressure spring (7) is in a normal state, the pressure ball (8) falls to the lower portion of the T-shaped opening in the oil outlet pipe (2) due to gravity.

6. The automatic pressure regulating oil filter according to claim 1, characterized in that: The protective tube (1) comprises an upper tube (4) and a lower tube (9); the bottom of the upper tube (4) is arranged in a stepped shape, and the lower tube (9) is threadedly connected to the stepped portion of the bottom of the upper tube (4).

7. The automatic pressure regulating oil filter according to claim 6, characterized in that: A sealing gasket (10) is provided at the inner bottom of the lower cylinder (9).

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