Oil filter easy to disassemble

Abstract

The utility model provides an oil filter easy to disassemble, and relates to the technical field of oil filters, the oil filter easy to disassemble comprises a hollow cylinder, a first filter piece and a filter cylinder are sequentially arranged in the hollow cylinder in the vertical direction, an annular cylinder is pressed to drive an elastic piece to be compressed, and the first filter piece is coaxial with the hollow cylinder and pushed into the hollow cylinder; a trapezoidal groove of the first filtering part reaches a limiting through hole, downward pressing on an annular support is stopped, at the moment, after pressure borne by an elastic part disappears, the elastic part is in an expanded state, the elastic part drives an annular cylinder to reset and extrudes a plurality of limiting balls at the same time, and the limiting balls move inwards after being extruded and are tightly attached to the trapezoidal groove; and when maintenance or overhaul is needed, the annular cylinder is pressed again, so that the extrusion force of the limiting balls disappears, at the moment, the first filtering piece is pulled out towards the outer side and then is disassembled, and the multiple limiting balls are beneficial to reducing friction force and prolonging the service life.

Description

Technical Field

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

[0002] The oil filter is a filter used in automobile engines to remove impurities and dirt from the oil to ensure the normal operation of the engine. During the operation of the engine, metal debris, dust, carbon deposits oxidized at high temperatures, colloidal sediments, water, etc. are constantly mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and colloids to keep the lubricating oil clean and extend its service life. The oil filter usually consists of one or more filter cartridges and a filter cover, which is installed at the engine oil inlet. During the driving of the car, the oil filter will gradually become clogged and needs to be checked and replaced regularly.

[0003] When the existing oil filter is disassembled, it is fixed and connected by threaded connection. Although it is firmly fixed, it is not convenient to disassemble, which is troublesome for later maintenance and replacement. In addition, when the filter cartridge and the filter cover are joined up and down, there is no filter cover directly placed inside, resulting in a certain gap between it and the filter cartridge, which may cause leakage of impurities.

[0004] Therefore, it is necessary to provide a new easily disassembled oil filter to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an easily detachable oil filter.

[0006] The easily removable oil filter provided by the utility model comprises a hollow cylinder, wherein a first filter element and a filter cartridge are sequentially arranged inside the hollow cylinder along a vertical direction, the bottom of the first filter element is closely attached to the filter cartridge, a connecting pipe is arranged on the top of the first filter element, a trapezoidal groove is provided on the outer wall of the first filter element, a plurality of limiting through holes are provided on the outer wall of the hollow cylinder at equal intervals in the circumferential direction, limiting balls are respectively arranged in the plurality of limiting through holes of the hollow cylinder, and the plurality of limiting balls are attached to the inner wall of the trapezoidal groove of the first filter element, and an elastic member is arranged around the outer wall of the hollow cylinder;

[0007] An annular cylinder is arranged on the outer surface of the hollow cylinder, the inner wall of the annular cylinder is fitted with the outer walls of multiple limiting balls, and the two ends of the elastic member are respectively fixedly connected to the top wall of the hollow cylinder and the bottom wall of the annular cylinder.

[0008] Furthermore, the limiting through hole of the hollow cylinder is arranged in an isosceles trapezoidal shape, and the limiting ball is arranged parallel to the limiting through hole.

[0009] Furthermore, the elastic member is a spring, the spring radially surrounds the outer wall of the hollow cylinder on the outside, and the two ends of the spring are respectively fixedly connected to the top wall of the hollow cylinder and the bottom wall of the annular cylinder.

[0010] Furthermore, the first filter element includes a filter cover, a liquid leakage plate and an anti-reverse plate, the inner side wall of the filter cover is connected to the liquid leakage plate and the anti-reverse plate in sequence, and the liquid leakage plate is fixedly connected to the top of the anti-reverse plate.

[0011] Furthermore, a plurality of leakage holes are circumferentially arranged at equal intervals on the top of the leakage plate.

[0012] Furthermore, the outer side wall of the connecting pipe is fixedly connected to the liquid leakage plate and the anti-reversal plate in sequence.

[0013] Compared with the related art, the easily removable oil filter provided by the utility model has the following beneficial effects:

[0014] 1. The utility model provides a hollow cylinder and a protective device, and drives the elastic member to be compressed by pressing the annular cylinder. The first filter member is coaxial with the hollow cylinder and pushed into the interior thereof. The trapezoidal groove of the first filter member reaches the limiting through hole, and the downward pressure on the annular bracket is stopped. At this time, the elastic member is in an expanded state after the pressure on the elastic member disappears, and drives the annular cylinder to reset, and squeezes a plurality of limiting balls at the same time. The limiting balls move inward after being squeezed, and fit tightly with the trapezoidal groove, and the first filter member is squeezed to complete the fixation. When maintenance or overhaul is required, the annular cylinder is pressed again to make the squeezing force of the limiting balls disappear. At this time, the first filter member is pulled outward to complete the disassembly, and the plurality of limiting balls help to reduce friction and increase the service life.

[0015] 2. By installing the first filter element, make it close to the filter cartridge to reduce leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the easily removable oil filter provided by the utility model;

[0017] Figure 2 A schematic cross-sectional view of the easily removable oil filter provided by the utility model;

[0018] Figure 3 A schematic diagram of the state structure of the easily removable oil filter provided by the utility model;

[0019] Figure 4 This is a structural schematic diagram of the first filter element provided by the utility model.

[0020] Numbers in the figure: 1. Hollow cylinder; 2. Filter cover; 3. Leakage plate; 4. Anti-reverse plate; 5. Filter cartridge; 6. Connecting pipe; 7. Trapezoidal groove; 8. Limiting ball; 9. Spring; 10. Annular cylinder; 11. Leakage hole; 12. Limiting through hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 This is a schematic diagram of the overall structure of the easily removable oil filter provided by the utility model; Figure 2 A schematic cross-sectional view of the easily removable oil filter provided by the utility model; Figure 3 A schematic diagram of the state structure of the easily removable oil filter provided by the utility model; Figure 4 This is a structural schematic diagram of the first filter element provided by the utility model.

[0023] In the specific implementation process, Figures 1 to 4 As shown, the easily removable oil filter comprises a hollow cylinder 1, a first filter element and a filter cartridge 5 are sequentially arranged inside the hollow cylinder 1 along the vertical direction, the bottom of the first filter element is closely attached to the filter cartridge, a connecting pipe 6 is arranged on the top of the first filter element, a trapezoidal groove 7 is provided on the outer wall of the first filter element, a plurality of limiting through holes 12 are provided on the outer wall of the hollow cylinder 1 at equal intervals in the circumferential direction, limiting balls 8 are respectively arranged in the plurality of limiting through holes 12 of the hollow cylinder 1, and the plurality of limiting balls 8 are attached to the inner wall of the trapezoidal groove 7 of the first filter element, and an elastic member is arranged around the outer wall of the hollow cylinder 1;

[0024] The annular cylinder 10 is arranged on the outer surface of the hollow cylinder 1, the inner wall of the annular cylinder 10 fits with the outer walls of the plurality of limiting balls 8, and the two ends of the elastic member are fixedly connected with the top wall of the hollow cylinder 1 and the bottom wall of the annular cylinder 10 respectively.

[0025] The limiting through hole 12 of the hollow cylinder 1 is arranged in an isosceles trapezoidal shape, the limiting ball 8 is arranged parallel to the limiting through hole 12, the size of the inner side of the hollow cylinder 1 is smaller than the overall size of the limiting ball 8, which can prevent the limiting ball 8 in the hollow cylinder 1 from detaching, and the elastic member is a spring 9, which radially surrounds the outer wall of the hollow cylinder 1 on the outside, and the two ends of the spring 9 are respectively fixedly connected to the top wall of the hollow cylinder 1 and the bottom wall of the annular cylinder 10.

[0026] The first filter element includes a filter cover 2, a leakage plate 3 and an anti-reverse plate 4. The inner wall of the filter cover 2 is connected to the leakage plate 3 and the anti-reverse plate 4 in sequence, and the leakage plate 3 is fixedly connected to the top of the anti-reverse plate 4. A plurality of leakage holes 11 are circumferentially arranged at equal intervals on the top of the leakage plate 3. The outer wall of the connecting tube 6 is fixedly connected to the leakage plate 3 and the anti-reverse plate 4 in sequence.

[0027] The working principle provided by the utility model is as follows: when the utility model is implemented, the annular cylinder 10 is pressed down to make it move vertically and horizontally and drive the elastic member to compress. At this time, the resistance of the limiting ball 8 wrapped by the annular cylinder 10 disappears, and the first filter element is coaxially aligned with the hollow cylinder 1, and pushed into the hollow cylinder 1. When pushed in, the first filter element will push the outer limiting ball 8 outward, so that the limiting ball 8 shrinks into the limiting through hole 12. When the first filter element is pushed to the position where it fits with the inner wall of the hollow cylinder 1, the trapezoidal groove 7 of the first filter element is pressed against the inner wall of the hollow cylinder 1. When the limit through hole 12 is reached, the squeezing force on the limit ball 8 disappears, and the downward pressure on the annular cylinder 10 is stopped. At this time, the pressure on the elastic member disappears and is in an expanded state, which drives the annular cylinder 10 to move vertically toward the top and squeeze multiple limit balls 8 at the same time. The limit balls 8 move inward after being squeezed and fit tightly with the trapezoidal groove 7, squeezing and fixing the first filter element. When maintenance or overhaul is needed, the annular cylinder 10 is pressed again to make the squeezing force of the limit ball 8 disappear. At this time, the first filter element is pulled outward to complete the disassembly.

[0028] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An easily removable oil filter, characterized in that: The hollow cylinder (1) comprises a first filter element and a filter cartridge (5) arranged in sequence in the vertical direction inside the hollow cylinder (1), the bottom of the first filter element is tightly attached to the filter cartridge (5), the top of the first filter element is provided with a connecting pipe (6), the outer wall of the first filter element is provided with a trapezoidal groove (7), the outer wall of the hollow cylinder (1) is provided with a plurality of limiting through holes (12) at equal intervals in the circumferential direction, limiting balls (8) are respectively arranged in the plurality of limiting through holes (12) of the hollow cylinder (1), and the plurality of limiting balls (8) are fitted with the inner wall of the trapezoidal groove (7) of the first filter element, and an elastic member is arranged around the outer wall of the hollow cylinder (1); An annular cylinder (10) is arranged on the outer surface of the hollow cylinder (1), the inner wall of the annular cylinder (10) is in contact with the outer walls of a plurality of limiting balls (8), and the two ends of the elastic member are respectively fixedly connected to the top wall of the hollow cylinder (1) and the bottom wall of the annular cylinder (10).

2. The easily removable oil filter according to claim 1, characterized in that: The limiting through hole (12) of the hollow cylinder (1) is arranged in an isosceles trapezoidal shape, and the limiting ball (8) is arranged parallel to the limiting through hole (12).

3. The easily removable oil filter according to claim 2, characterized in that: The elastic member is a spring (9), which radially surrounds the outer wall of the hollow cylinder (1) on the outside, and the two ends of the spring (9) are respectively fixedly connected to the top wall of the hollow cylinder (1) and the bottom wall of the annular cylinder (10).

4. The easily removable oil filter according to claim 3, characterized in that: The first filter element comprises a filter cover (2), a liquid leakage plate (3) and an anti-reverse plate (4); the inner side wall of the filter cover (2) is connected to the liquid leakage plate (3) and the anti-reverse plate (4) in sequence, and the liquid leakage plate (3) is fixedly connected to the top of the anti-reverse plate (4).

5. The easily detachable oil filter according to claim 4, characterized in that: The top of the leakage plate (3) is provided with a plurality of leakage holes (11) at equal intervals in the circumferential direction.

6. The easily detachable oil filter according to claim 5, characterized in that: The outer side wall of the connecting pipe (6) is fixedly connected to the liquid leakage plate (3) and the anti-reversal plate (4) in sequence.

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