Oil absorption filter

Abstract

A first flange is arranged on the outer side of the upper end of a filter cylinder, the lower end of the filter cylinder is closed, a middle cylinder is arranged outside the filter cylinder, the upper end of the middle cylinder is fixedly connected to the bottom face of the first flange, the lower end of the middle cylinder is connected with the lower end of the filter cylinder, and a first gap is formed between the middle cylinder and the filter cylinder. A plurality of side face oil outlet holes are formed in the outer side of the middle cylinder in the circumferential direction at equal intervals, an outer cylinder with a bottom is arranged outside the middle cylinder, the upper end of the outer cylinder is fixedly connected to the bottom face of the first flange, a second gap is formed between the outer cylinder and the middle cylinder, a bottom face oil outlet hole is formed in the center of the bottom face of the outer cylinder, and an oil outlet pipe is arranged at the bottom face oil outlet hole. The upper side of the first flange is connected with a flange plate through a plurality of bolts, a top face oil inlet hole is formed in the flange plate, and an oil inlet pipe is arranged at the top face oil inlet hole. The oil suction filter can disperse filtered fluid from the periphery and converge the fluid between the outer cylinder and the middle cylinder, and the problem that in the prior art, an outlet outside a filter cylinder is single, and filtered impurities located at the outlet of the filter cylinder are too concentrated is solved.

Description

Technical Field

[0001] The utility model relates to automobile supplies, in particular to an oil absorption filter. Background Art

[0002] The oil suction filter is installed at the oil pump suction port to protect the oil pump and other hydraulic components to avoid the suction of pollutants, effectively control the pollution of the hydraulic system, and adjust the cleanliness of the hydraulic system.

[0003] Chinese patent CN201921072000.7 discloses an oil suction filter with automatic cleaning filter screen, including an oil suction filter body, the oil suction filter body includes a filter cartridge, a filter screen arranged inside the filter cartridge, an oil inlet is arranged at the top of the outer wall of the filter cartridge, and an oil filter outlet is arranged at the bottom of the filter cartridge.

[0004] The oil suction filter adopts a single-inlet and single-outlet method to provide a fluid flow channel. Since there is only a single oil filter outlet, the fluid flows toward the oil filter outlet, which will cause impurities on the filter screen located at the oil filter outlet to be too concentrated, affecting the service life of the oil suction filter. Utility Model Content

[0005] The utility model aims to provide an oil suction filter, which can disperse the filtered fluid from all sides and converge between the outer cylinder and the middle cylinder, thereby solving the problem in the prior art that the single outlet outside the filter cartridge easily leads to excessive concentration of filtered impurities at the outlet of the filter cartridge.

[0006] The filter element is connected with the filter element at the bottom end, and the filter element has a bottom end and a bottom end, and a bottom end has a bottom end.

[0007] Preferably, a plurality of partitions extending in the axial direction are arranged between the middle tube and the outer tube, and the partitions are arranged at the middle position of two adjacent side oil outlet holes.

[0008] Preferably, the lower end of the partition extends to below the middle tube and is fixed to the inner bottom surface of the outer tube, and the upper end of the partition is fixed to the bottom surface of the first flange.

[0009] Preferably, the oil outlet pipe is a curved pipe, and a second flange is arranged on the outer side of the end of the oil outlet pipe.

[0010] Preferably, the oil inlet pipe is a straight pipe, and a third flange is arranged on the outer side of the end of the straight pipe.

[0011] Preferably, the top surface of the first flange is provided with at least one circle of sealing groove, and a sealing ring is provided in the sealing groove.

[0012] The filter element is connected with the filter element through the bottom end of the filter element, and the filter element has a bottom end and a bottom end, and a bottom end has a bottom end.

[0013] When the oil suction filter is in use, the fluid passes through the oil inlet pipe, the top oil inlet hole, the filter cartridge, the first gap, multiple side oil outlet holes, the second gap, the bottom oil outlet hole and the oil outlet pipe in sequence. Since the fluid enters the second gap from the multiple side oil outlet holes after being discharged from the filter cartridge, the filtered impurities in the fluid will not be concentrated in one place on the inner side of the filter cartridge, thereby extending the service life of the filter cartridge.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the oil suction filter;

[0017] Figure 2 It is a schematic diagram of the main structure of a preferred embodiment of the oil suction filter;

[0018] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0019] Figure 4 yes Figure 3 Schematic diagram of the BB cross-section structure.

[0020] Description of Reference Numerals

[0021] 1-third flange; 2-oil inlet pipe; 3-flange plate; 4-bolts; 5-first flange; 6-outer cylinder; 7-oil outlet pipe; 8-second flange; 9-middle cylinder; 10-side oil outlet hole; 11-filter cartridge; 12-bottom oil outlet hole; 13-partition; 14-sealing ring; 15-top oil inlet hole; 16-first gap; 17-second gap. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0023] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0024] See also Figure 1-4 The oil suction filter shown in the figure comprises a filter cartridge 11, a first flange 5 is arranged outside the upper end of the filter cartridge 11, the lower end of the filter cartridge 11 is arranged to be closed, a middle cylinder 9 is arranged outside the filter cartridge 11, the upper end of the middle cylinder 9 is fixed to the bottom surface of the first flange 5, the lower end of the middle cylinder 9 is connected to the lower end of the filter cartridge 11, a first gap 16 is formed between the middle cylinder 9 and the filter cartridge 11, and a plurality of side oil outlet holes 10 are arranged at equal intervals along the circumferential direction on the outer side of the middle cylinder 9, An outer cylinder 6 with a bottom is arranged outside the middle cylinder 9, and the upper end of the outer cylinder 6 is fixedly connected to the bottom surface of the first flange 5. A second gap 17 is formed between the outer cylinder 6 and the middle cylinder 9. A bottom surface oil outlet hole 12 is arranged at the center of the bottom surface of the outer cylinder 6, and an oil outlet pipe 7 is arranged at the bottom surface oil outlet hole 12. The upper side of the first flange 5 is connected to a flange plate 3 by multiple bolts 4, and a top surface oil inlet hole 15 is arranged on the flange plate 3, and an oil inlet pipe 2 is arranged at the top surface oil inlet hole 15.

[0025] Through the implementation of the above technical solution, when the oil suction filter is used, the fluid enters the oil pump after passing through the oil inlet pipe 2, the top oil inlet hole 15, the filter cartridge 11, the first gap 16, the multiple side oil outlet holes 10, the second gap 17, the bottom oil outlet hole 12 and the oil outlet pipe 7 in sequence. Since the fluid enters the second gap 17 from the multiple side oil outlet holes 10 after being discharged from the filter cartridge 11, the filtered impurities in the fluid will not be concentrated in one place on the inner side of the filter cartridge 11, thereby extending the service life of the filter cartridge 11.

[0026] In this embodiment, a plurality of partitions 13 extending in the axial direction are arranged between the middle cylinder and the outer cylinder 6, and the partitions 13 are arranged in the middle position of two adjacent side oil outlet holes 10. Through the arrangement of the plurality of partitions 13, the fluid coming out of each side oil outlet hole 10 will not converge at the side part of the second gap 17 under the partition of the partitions 13 on both sides, but will converge at the bottom position of the second gap 17, so that the fluid is dispersed more evenly.

[0027] In this embodiment, the lower end of the partition 13 extends to the bottom of the middle tube and is fixed to the inner bottom surface of the outer tube 6, and the upper end of the partition 13 is fixed to the bottom surface of the first flange 5. Through such an arrangement, the fluid can converge toward the center and be discharged through the bottom oil outlet 12 when entering the bottom position of the second gap 17.

[0028] In this embodiment, the oil outlet pipe 7 is a curved pipe, and a second flange 8 is arranged outside the end of the oil outlet pipe 7. The second flange 8 and the curved pipe are arranged to facilitate flange connection with the inlet end of the oil pump.

[0029] In this embodiment, the oil inlet pipe 2 is a straight pipe, and a third flange 1 is arranged outside the end of the straight pipe. This arrangement facilitates the connection with the outlet end of the fluid delivery pipe through the flange.

[0030] In this embodiment, at least one sealing groove is provided on the top surface of the first flange 5, and a sealing ring 14 is provided in the sealing groove. The sealing ring 14 is provided to increase the sealing connection between the first flange 5 and the flange plate 3. Of course, the sealing groove can also be provided on the top surface of the first flange 5 and the bottom surface of the flange plate 3, respectively, both of which are two-half structures. The sealing grooves of the two-half structures are closed to form a groove body with a circular cross section. The sealing ring 14 can be an O-ring, which is an interference fit with the groove body.

[0031] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0032] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0033] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An oil suction filter, characterized in that: The oil suction filter comprises a filter cartridge (11), a first flange (5) is arranged outside the upper end of the filter cartridge (11), the lower end of the filter cartridge (11) is arranged to be closed, a middle cylinder (9) is arranged outside the filter cartridge (11), and the upper end of the middle cylinder (9) is fixedly connected to the bottom surface of the first flange (5); The lower end of the middle cylinder (9) is connected to the lower end of the filter cylinder (11), a first gap (16) is formed between the middle cylinder (9) and the filter cylinder (11), a plurality of side oil outlet holes (10) are arranged at equal intervals along the circumferential direction on the outer side of the middle cylinder (9), an outer cylinder (6) with a bottom is arranged outside the middle cylinder (9), the upper end of the outer cylinder (6) is fixedly connected to the bottom surface of the first flange (5), and a second gap (17) is formed between the outer cylinder (6) and the middle cylinder (9); A bottom surface oil outlet hole (12) is provided at the center position of the bottom surface of the outer cylinder (6), an oil outlet pipe (7) is provided at the bottom surface oil outlet hole (12), the upper side of the first flange (5) is connected to a flange plate (3) via a plurality of bolts (4), a top surface oil inlet hole (15) is provided on the flange plate (3), and an oil inlet pipe (2) is provided at the top surface oil inlet hole (15).

2. The oil absorption filter according to claim 1, characterized in that A plurality of partitions (13) extending in the axial direction are arranged between the middle cylinder and the outer cylinder (6), and the partitions (13) are arranged at the middle position of two adjacent side oil outlet holes (10).

3. The oil absorption filter according to claim 2, characterized in that The lower end of the partition (13) extends to the bottom of the middle tube and is fixed to the inner bottom surface of the outer tube (6), and the upper end of the partition (13) is fixed to the bottom surface of the first flange (5).

4. The oil absorption filter according to claim 1, characterized in that The oil outlet pipe (7) is a curved pipe, and a second flange (8) is arranged on the outer side of the end of the oil outlet pipe (7).

5. The oil absorption filter according to claim 1, characterized in that The oil inlet pipe (2) is a straight pipe, and a third flange (1) is arranged on the outer side of the end of the straight pipe.

6. The oil suction filter according to claim 1, characterized in that The top surface of the first flange (5) is provided with at least one circle of sealing groove, and a sealing ring (14) is arranged in the sealing groove.

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