CN220909860U

CN220909860U - Diesel filter

Info

Publication number: CN220909860U
Application number: CN202322856354.3U
Authority: CN
Inventors: 阮文华; 张智勋; 张小琴; 张建波
Original assignee: Zhejiang Fenghe Filter Co ltd
Current assignee: Zhejiang Fenghe Filter Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-05-07
Anticipated expiration: 2033-10-24

Abstract

The utility model relates to the technical field of filters, in particular to a diesel filter, which comprises a shell, wherein a threaded cover plate is arranged at an opening of the shell, an air inlet is formed in the center of the threaded cover plate, air outlets which are in an annular array are formed in the periphery of the air inlet and are arranged on the threaded cover plate, filter paper is fixedly connected to the inner bottom of the shell, the filter paper is cylindrical, the inside of the filter paper is in a cavity state, an exhaust cavity is formed by the outer surface of the filter paper and the inner wall of the shell, and particles entering the air inlet are captured in a grading manner by utilizing a first particle filter screen and a second particle filter screen at the air inlet, so that the filter paper is prevented from being blocked by the particles, and meanwhile, the tops of the first particle filter screen and the second particle filter screen are cambered surfaces, so that the filtered particles flow around the first particle filter screen and the second particle filter screen are prevented from being blocked by the filter paper.

Description

Diesel filter

Technical Field

The utility model relates to the technical field of filters, in particular to a diesel filter.

Background

The filter is an accessory that filters foreign substances or gases through a filter paper, and generally refers to an automobile filter, which is an accessory of an engine.

In the prior art, a multifunctional rotary air drying tank as proposed in the patent application number CN202122377844.6 comprises a shell, a filter element and a thread sealing plate, wherein the filter element is arranged in the shell, and a supporting spring is arranged between the bottom of the filter element and the shell; a threaded sealing plate is mounted on top of the housing to close the housing; a lining non-woven fabric and a lining ring are arranged between the filter element and the thread sealing plate.

But among the prior art, like the drying jar that proposes in patent application number "CN202122377844.6", in the air directly got into the drying jar, only relied on the non-woven fabrics to filter the filtration of air, the particulate impurity in the air caused the non-woven fabrics to block up easily, and the filter effect that plays is not good.

Disclosure of utility model

The present utility model is directed to a diesel filter to solve the above-mentioned problems.

The aim of the utility model can be achieved by the following technical scheme:

The diesel filter comprises a shell, a threaded cover plate is arranged at the opening of the shell, an air inlet is formed in the center of the threaded cover plate, air outlets which are in an annular array are formed in the periphery of the air inlet and are arranged on the threaded cover plate, filter paper is fixedly connected to the inner bottom of the shell and is in a cylindrical shape, the inside of the filter paper is in a cavity state, and an exhaust cavity is formed by the outer surface of the filter paper and the inner wall of the shell.

The utility model discloses a filter device, including air inlet, filter mechanism is provided with in the air inlet, and filter mechanism includes first granule filter screen and second granule filter screen, and the top of first granule filter screen and second granule filter screen is central convex curved surface design, and the mesh diameter of first granule filter screen is greater than the mesh diameter of second granule filter screen.

Preferably, the top and the bottom of the filter paper are fixedly connected with isolation rings, and oil absorbing cotton is arranged on the surfaces of the isolation rings.

Preferably, an outer sealing ring is arranged on the shell and above the threaded cover plate, and an inner sealing ring is arranged between the isolation ring and the threaded cover plate.

Preferably, the air inlet is communicated with the cavity in the filter paper, and the air outlets are communicated with the exhaust cavity.

Preferably, the center position of the first particle filter screen is fixedly connected with a connecting center shaft, and the connecting center shaft is fixedly connected with the center position of the second particle filter screen.

Preferably, the surface fixedly connected with of first granule filter screen and second granule filter screen shelters from the circle, and the surface fixedly connected with that shelters from the retaining ring seals the lasso, shelters from the circle and has offered the fixed orifices that are annular array.

The utility model has the beneficial effects that:

Through adding first granule filter screen and second granule filter screen in air inlet department, utilize first granule filter screen and second granule filter screen to catch the granule that air inlet department got into gas in grades, prevent that filter paper from being blockked up by the granule, the top of first granule filter screen and second granule filter screen is the cambered surface simultaneously for the granule of filtration flows around first granule filter screen and second granule filter screen, avoids first granule filter screen and second granule filter screen self to produce the jam.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a top view of the housing of FIG. 1 in accordance with the present utility model;

FIG. 3 is a schematic view of the first particulate filter of FIG. 1 according to the present utility model;

FIG. 4 is a schematic view of the structure of the inside of the shielding ring of FIG. 3 according to the present utility model;

Fig. 5 is a schematic view of the structure of the bottom of the second particulate filter of fig. 4 according to the present utility model.

Reference numerals in the drawings are as follows:

1. The device comprises a shell, 2, a threaded cover plate, 201, an air inlet, 202, an air outlet, 3, filter paper, 4, an exhaust chamber, 5, a filtering mechanism, 501, a first particle filter screen, 502, a second particle filter screen, 6, a spacer ring, 8, an outer sealing ring, 9, an inner sealing ring, 10, a connecting center shaft, 11, a shielding ring, 12, a sealing ring, 13 and a fixing hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The diesel filter comprises a shell 1, a threaded cover plate 2 is arranged at the opening of the shell 1, an air inlet 201 is formed in the center position of the threaded cover plate 2, air outlets 202 which are in an annular array are formed in the periphery of the threaded cover plate 2 and located on the air inlet 201, filter paper 3 is fixedly connected to the inner bottom of the shell 1, the filter paper 3 is in a cylindrical shape, the inside of the filter paper 3 is in a cavity state, and an exhaust cavity 4 is formed by the outer surface of the filter paper 3 and the inner wall of the shell 1.

The filter mechanism 5 is arranged in the air inlet 201, the filter mechanism 5 comprises a first particle filter screen 501 and a second particle filter screen 502, the tops of the first particle filter screen 501 and the second particle filter screen 502 are both of a curved surface design with a convex center, and the mesh diameter of the first particle filter screen 501 is larger than that of the second particle filter screen 502.

As shown in fig. 1, the filter of the present application should be applied to a diesel engine with opposite oil path directions, to provide clean air for the diesel engine, and the clean air is introduced into the filter paper 3 inside the housing 1 through the air inlet 201 as a threaded hole, and then is discharged through the air discharge chamber 4 and the air outlet 202, and the filter paper 3 can filter impurities and greasy dirt in the air.

The top and the bottom of the filter paper 3 are fixedly connected with a spacer ring 6, and oil absorbing cotton is arranged on the surface of the spacer ring 6.

As shown in fig. 1, through the spacer 6 on the top of the filter paper 3, air can be prevented from passing through the top or bottom of the filter paper 3, so that air can only pass through the periphery of the filter paper 3, and the oil absorbing cotton on the surface of the spacer 6 can absorb dirty oil filtered out by the filter paper 3.

An outer sealing ring 8 is arranged on the shell 1 and above the threaded cover plate 2, and an inner sealing ring 9 is arranged between the isolating ring 6 and the threaded cover plate 2.

As shown in fig. 1 and 2, the outer sealing ring 8 seals between the screw cover plate 2 and the housing 1, so that the gas inside the housing 1 can only be discharged through the gas outlet 202, and the inner sealing ring 9 seals between the screw cover plate 2 and the isolation ring 6, so that the gas can only enter the housing 1 through the gas inlet 201.

The air inlet 201 is communicated with the cavity inside the filter paper 3, and the plurality of air outlets 202 are communicated with the exhaust chamber 4.

The center position of the first particle filter screen 501 is fixedly connected with the connecting center shaft 10, and the center positions of the connecting center shaft 10 and the second particle filter screen 502 are fixedly connected.

As shown in fig. 3 and 4, the first particle filter 501 and the second particle filter 502 are connected by the connecting center shaft 10, so that stability between the first particle filter 501 and the second particle filter 502 is improved, and the first particle filter 501 is located above the second particle filter 502.

The surface fixedly connected with of first granule filter screen 501 and second granule filter screen 502 shelters from circle 11, and the surface fixedly connected with of sheltering from circle 11 seals lasso 12, has offered the fixed orifices 13 that are annular array on sheltering from the circle 11.

As shown in fig. 1, 3 and 4, the shielding ring 11 may be fixed into the air inlet 201 by bolts passing through the fixing holes 13, and the sealing ring 12 may promote sealability between the outer surface of the shielding ring 11 and the inner wall of the air inlet 201 so that the first particle filter 501 and the second particle filter 502 may be installed into the air inlet 201.

The working principle of the diesel filter provided by the utility model is as follows:

Outside air enters the filter paper 3 in the shell 1 through the air inlet 201, and when the air passes through the air inlet 201, the air sequentially passes through the first particle filter screen 501 and the second particle filter screen 502, so that the first particle filter screen 501 and the second particle filter screen 502 can respectively filter particles in the air, and the filter paper 3 is prevented from being blocked by the particles;

Meanwhile, the tops of the first particle filter screen 501 and the second particle filter screen 502 are arc surfaces protruding upwards, particles filtered by the first particle filter screen 501 and the second particle filter screen 502 can flow to the periphery of the first particle filter screen 501 and the second particle filter screen 502 along the surfaces of the first particle filter screen 501 and the second particle filter screen 502, and are shielded by the shielding ring 11, so that continuous movement cannot be performed.

After the air entering the filter paper 3 is filtered by the filter paper 3, impurities and greasy dirt in the air are filtered by the filter paper 3, then enter the exhaust chamber 4, and finally are discharged through the air outlet 202.

Compared with the related art, the diesel filter provided by the utility model has the following beneficial effects:

Through adding first granule filter screen 501 and second granule filter screen 502 in air inlet 201 department, utilize first granule filter screen 501 and second granule filter screen 502 to catch the granule of air inlet 201 department entering gas in grades, prevent filter paper 3 by the granule jam, the top of first granule filter screen 501 and second granule filter screen 502 is the cambered surface simultaneously for the granule of filtration flows around first granule filter screen 501 and second granule filter screen 502, avoids first granule filter screen 501 and second granule filter screen 502 self to produce the jam.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The diesel filter comprises a shell (1) and is characterized in that a threaded cover plate (2) is arranged at an opening of the shell (1), an air inlet (201) is formed in the center position of the threaded cover plate (2), air outlets (202) which are in an annular array are formed in the periphery of the threaded cover plate (2) and located on the air inlet (201), filter paper (3) is fixedly connected to the inner bottom of the shell (1), the filter paper (3) is cylindrical, the inside of the filter paper is in a cavity state, and an exhaust cavity (4) is formed by the outer surface of the filter paper (3) and the inner wall of the shell (1);

Be provided with filtering mechanism (5) in air inlet (201), filtering mechanism (5) are including first granule filter screen (501) and second granule filter screen (502), and the top of first granule filter screen (501) and second granule filter screen (502) is the convex curved surface design in center, and the mesh diameter of first granule filter screen (501) is greater than the mesh diameter of second granule filter screen (502).

2. The diesel oil filter according to claim 1, wherein the top and the bottom of the filter paper (3) are fixedly connected with a spacer ring (6), and oil absorbing cotton is arranged on the surface of the spacer ring (6).

3. The diesel fuel filter according to claim 2, characterized in that an outer sealing ring (8) is arranged on the shell (1) and above the threaded cover plate (2), and an inner sealing ring (9) is arranged between the isolating ring (6) and the threaded cover plate (2).

4. A diesel fuel filter according to claim 3, characterized in that the air inlet (201) communicates with the cavity inside the filter paper (3) and the air outlets (202) communicate with the exhaust chamber (4).

5. The diesel fuel filter according to claim 1, wherein the central position of the first particle filter screen (501) is fixedly connected with a connecting central shaft (10), and the central positions of the connecting central shaft (10) and the second particle filter screen (502) are fixedly connected.

6. The diesel fuel filter according to claim 5, wherein the outer surfaces of the first particle filter screen (501) and the second particle filter screen (502) are fixedly connected with a shielding ring (11), the outer surface of the shielding ring (11) is fixedly connected with a sealing ring (12), and the shielding ring (11) is provided with fixing holes (13) in an annular array.