CN217015518U

CN217015518U - Filter screen does not have extrusion filter of leakage

Info

Publication number: CN217015518U
Application number: CN202220299473.6U
Authority: CN
Inventors: 陈成; 武小双; 武宇; 程银珠; 武龙
Original assignee: Longguszhuang Machinery Jiangsu Co ltd
Current assignee: Longguszhuang Machinery Jiangsu Co ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-07-22
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses a filter screen leakage-free and extrusion-free filter, and relates to the technical field of filters. The filter comprises a shell, wherein a fluid inlet and a fluid outlet are respectively formed in the left end and the right end of the shell, a filter cavity is formed in the bottom of the inner side of the shell, and the filter cavity is communicated with the fluid inlet and the fluid outlet; the drain has been seted up to the casing bottom, and the drain link up mutually with the filter chamber, and the inside filter screen that is provided with of filter chamber, filter screen bottom fixedly connected with filter screen stopper, filter screen stopper activity set up inside the drain, and the filter screen top is provided with prevents leaking the mechanism, is provided with sealing mechanism between filter screen stopper and the drain. According to the utility model, the leakage-proof mechanism and the sealing mechanism are arranged, so that the filter screen is prevented from being extruded and deformed after being washed, impurities in the fluid are prevented from leaking from the outer side of the filter screen, the filtering effect is good, the using effect of the filter is improved, and the sealing property between the filter screen limiter and the inner wall of the sewage outlet of the shell is improved.

Description

Filter screen does not have extrusion filter of leakage

Technical Field

The utility model belongs to the technical field of filters, and particularly relates to a filter screen non-leakage and non-extrusion filter.

Background

In the process of fluid delivery, most fluid media contain a certain amount of impurities, the impurities are not allowed to enter the next procedure, or the impurities can cause equipment damage to enter the next procedure, block fluid delivery and form a vacuum state, or cause dry friction state of equipment which must run by means of fluid lubrication, so that the equipment is damaged, shutdown is caused, most of the existing markets have fixed filter elements, and the filter element is the heart of a filter. The filter element is mainly used in the filtration industries of oil filtration, water filtration, air filtration and the like. The filter medium is removed of a small amount of impurities, so that the normal operation of equipment or the cleanness of air can be protected, when fluid passes through a filter element with certain precision in the filter, the impurities are blocked, and clean fluid flows out through the filter element. The filter element can purify polluted media to achieve a clean state required by production, and has certain cleanliness.

When an existing filter is installed, a gap exists between a filter screen in the filter and the inner wall of a filter cavity of the filter, impurities in fluid are easy to leak from the gap, the filter effect is poor, the using effect of the filter is affected, the filter screen is generally installed on a filter shell through a filter screen limiting stopper, but the filter screen limiting stopper is generally in threaded connection with the inner wall of the shell, the sealing effect is poor, and therefore the filter screen non-leakage non-extrusion filter is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filter screen leakage-free extrusion-free filter, which solves the problems that when the existing filter is installed, a gap exists between a filter screen in the filter and the inner wall of a filter cavity of the filter, impurities in fluid are easy to leak from the gap, so that the filtering effect is poor, and the using effect of the filter is influenced.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a filter screen leakage-free extrusion-free filter, which comprises a shell, wherein the left end and the right end of the shell are respectively provided with a fluid inlet and a fluid outlet, the bottom of the inner side of the shell is provided with a filter cavity, and the filter cavity is communicated with the fluid inlet and the fluid outlet; the bottom of the shell is provided with a drain outlet, the drain outlet is communicated with the filter cavity, a filter screen is arranged in the filter cavity, the bottom of the filter screen is fixedly connected with a filter screen limiter, the filter screen limiter is movably arranged in the drain outlet, the top of the filter screen is provided with a leakage-proof mechanism, and a sealing mechanism is arranged between the filter screen limiter and the drain outlet;

the leakage-proof mechanism comprises a matching ring, a fixing ring and an annular sealing ring, the matching ring is fixedly arranged on the inner wall of the top of the filter cavity, the fixing ring is fixedly connected to the top of the filter screen, the annular sealing ring is fixedly connected to one side surface, close to the matching ring, of the fixing ring, an annular groove is formed in one side surface, close to the filter screen, of the matching ring, the size of the annular sealing ring is matched with that of the annular groove, and the annular sealing ring is matched with the annular groove to seal a gap between the matching ring and the fixing ring;

sealing mechanism includes first sealing ring and second sealing ring, first sealing ring fixed connection keeps away from on one section week side of casing at the filter screen stopper, first sealing ring top fixedly connected with second sealing ring, second sealing ring fixed connection is on filter screen stopper week side, first cooperation groove and second cooperation groove have been seted up to casing drain bottom, first sealing ring and second sealing ring are located first cooperation inslot portion and second cooperation inslot portion respectively, first sealing ring, second sealing ring and first cooperation groove and second cooperation groove looks adaptation.

Preferably, the fluid inlet that both ends were equipped with about the casing is provided with first internal thread and second internal thread on fluid outlet inner wall respectively, is convenient for connect the external pipeline.

Preferably, graphite packing is arranged between the annular groove formed in the side face of the matching ring and the annular sealing ring, the graphite packing has elasticity, and the graphite packing is used for filling a gap between the annular groove and the annular sealing ring.

Preferably, the inner diameter of the matching ring is smaller than that of the fixing ring, so that the fluid medium is prevented from directly impacting the fixing ring.

Preferably, be provided with the third internal thread on the casing drain inner wall, be provided with the external screw thread on the filter screen stopper lateral wall, and external screw thread and third internal thread phase-match are convenient for with filter screen stopper fixed connection in casing drain department.

Preferably, the bottom of the filter screen limiter is provided with a sewage discharge hole, the inner wall of the sewage discharge hole is fixedly connected with a sewage discharge plug, and the sewage discharge plug is in threaded connection with the sewage discharge hole.

Preferably, the first sealing ring and the second sealing ring are respectively and fixedly connected with a first annular elastic cushion and a second annular elastic cushion on one side face, the first annular elastic cushion seals a gap between the first sealing ring and the first matching groove, and the second annular elastic cushion seals a gap between the second sealing ring and the second matching groove.

The utility model has the following beneficial effects:

1. according to the utility model, the leakage-proof mechanism is arranged, so that the gap between the filter screen and the inner wall of the filter cavity in the shell is reduced, when a fluid medium enters the filter cavity through the fluid inlet of the shell, the inner diameter of the matching ring is smaller than that of the fixing ring, so that the fluid medium firstly contacts with the matching ring and enters the filter screen from the inside of the matching ring, the fixing ring is attached to the matching ring, the annular sealing ring is matched with the annular groove arranged on the side surface of the matching ring to seal the gap between the fixing ring and the matching ring, the graphite filler between the annular groove and the annular sealing ring has elasticity, and when the fluid medium contacts with the filter screen, the direct contact between the fixing ring and the matching ring is avoided, so that the filter screen is prevented from being extruded and deformed after being washed, impurities in the fluid are prevented from leaking from the outer side of the filter screen, the filtering effect is good, and the using effect of the filter is improved;

2. according to the utility model, the sealing mechanism is arranged to seal the gap between the filter screen limiter and the shell, the filter screen limiter is connected with the shell through threads, the first sealing ring and the second sealing ring arranged on the peripheral side surface of the filter screen limiter are respectively matched with the first matching groove and the second matching groove arranged at the sewage discharge port of the shell, the gap between the filter screen limiter and the inner wall of the sewage discharge port is sealed, and the first annular elastic pad and the second annular elastic pad arranged on the side surfaces of the first sealing ring and the second sealing ring further play a role in sealing, so that the sealing effect is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a no-leak no-squeeze filter of the present invention;

FIG. 2 is a top view of a no-leak, no-squeeze screen filter of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 of a filter screen of the present invention;

FIG. 4 is an enlarged view of a portion of a filter screen of the present invention shown at B in FIG. 3;

fig. 5 is an enlarged view of a portion of a filter screen of the present invention at C of fig. 3.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a housing; 2. filtering with a screen; 3. a filter screen limiter; 4. mating the rings; 5. a fixing ring; 6. an annular seal ring; 7. a first seal ring; 8. a second seal ring; 9. a graphite filler; 10. a pollution discharge pipe plug; 11. a first annular elastic pad; 12. a second annular elastic pad.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model relates to a filter screen leakage-free extrusion-free filter, which comprises a shell 1, wherein the left end and the right end of the shell 1 are respectively provided with a fluid inlet and a fluid outlet, the bottom of the inner side of the shell 1 is provided with a filter cavity, and the filter cavity is communicated with the fluid inlet and the fluid outlet; a sewage draining outlet is formed in the bottom of the shell 1 and is communicated with the filter cavity, a filter screen 2 is arranged in the filter cavity, a filter screen limiter 3 is fixedly connected to the bottom of the filter screen 2, the filter screen limiter 3 is movably arranged in the sewage draining outlet, a leakage-preventing mechanism is arranged at the top of the filter screen 2, and a sealing mechanism is arranged between the filter screen limiter 3 and the sewage draining outlet;

the leakage-proof mechanism comprises a matching ring 4, a fixing ring 5 and an annular sealing ring 6, wherein the matching ring 4 is fixedly arranged on the inner wall of the top of the filter cavity, the top of the filter screen 2 is fixedly connected with the fixing ring 5, one side surface, close to the matching ring 4, of the fixing ring 5 is fixedly connected with the annular sealing ring 6, one side surface, close to the filter screen 2, of the matching ring 4 is provided with an annular groove, the size of the annular sealing ring 6 is matched with that of the annular groove, the annular sealing ring 6 is matched with the annular groove to seal a gap between the matching ring 4 and the fixing ring 5, and a fluid medium is prevented from leaking from the gap;

sealing mechanism includes first sealing ring 7 and second sealing ring 8, first sealing ring 7 fixed connection is kept away from on one section week side of casing 1 at

filter screen stopper

3, 7 top fixedly connected with second sealing ring 8 of first sealing ring, 8 fixed connection of second sealing ring are on 3 week sides of filter screen stopper, first cooperation groove and second cooperation groove have been seted up to 1 drain bottom of casing, first sealing ring 7 and second sealing ring 8 are located first cooperation groove and second cooperation inslot portion respectively, first sealing ring 7, second sealing ring 8 and first cooperation groove and second cooperation groove looks adaptation, it is sealed effectual.

Wherein, the fluid inlet that both ends were equipped with about casing 1 is provided with first internal thread and second internal thread on fluid outlet inner wall respectively, is convenient for connect the outside pipeline.

Wherein, be provided with graphite packing 9 between annular groove that the cooperation ring 4 side was equipped with and the annular seal 6, graphite packing 9 has elasticity, and graphite packing 9 fills the clearance between annular groove and the annular seal 6, has further improved the leakproofness.

Wherein, the internal diameter of the matching ring 4 is smaller than the internal diameter of the fixing ring 5, so that the direct impact of the fluid medium on the fixing ring 5 is avoided.

Wherein, be provided with the third internal thread on the 1 drain inner wall of casing, be provided with the external screw thread on the 3 lateral walls of filter screen stopper, and external screw thread and third internal thread phase-match are convenient for with 3 fixed connection of filter screen stopper in 1 drain department of casing.

Wherein, the blowdown hole has been seted up to filter screen stopper 3 bottom, fixedly connected with blowdown plug 10 on the blowdown downthehole wall, and blowdown plug 10 passes through threaded connection with the blowdown hole, clears up the impurity in the filter screen 2 through blowdown plug 10.

Wherein, first sealing ring 7 and second sealing ring 8 are close to on 1 side of casing, and first annular cushion 11 of fixedly connected with and second annular cushion 12 respectively, and first annular cushion 11 seals the clearance between first sealing ring 7 and the first cooperation groove, and second annular cushion 12 seals the clearance between second sealing ring 8 and the second cooperation groove.

The working principle of the utility model is as follows: when the filter works, when a fluid medium enters the inside of the filter cavity through the fluid inlet of the shell 1, the inner diameter of the matching ring 4 is smaller than that of the fixing ring 5, so that the fluid medium firstly contacts with the matching ring 4 and enters the inside of the filter screen 2 from the inside of the matching ring 4, the fixing ring 5 is attached to the matching ring 4, the annular sealing ring 6 is matched with the annular groove arranged on the side surface of the matching ring 4 to seal the gap between the fixing ring 5 and the matching ring 4, the graphite packing 9 between the annular groove and the annular sealing ring 6 has elasticity, when the fluid medium contacts with the filter screen 2, the direct contact between the fixing ring 5 and the matching ring 4 is avoided, the filter screen 2 is prevented from being extruded and deformed after being washed, impurities in the fluid are prevented from leaking from the outer side of the filter screen 2, the filtering effect is good, and the using effect of the filter is improved; with filter screen stopper 3 and casing 1 through threaded connection, the first sealing ring 7 and the second sealing ring 8 that are equipped with on the 3 week sides of filter screen stopper cooperate with first cooperation groove and the second cooperation groove that 1 drain department of casing was equipped with respectively, seal the clearance between filter screen stopper 3 and the drain inner wall, and first annular cushion 11 and second annular cushion 12 that first sealing ring 7 and second sealing ring 8 side were equipped with further play sealed effect, it is sealed effectual.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a filter screen does not have leakage and does not have extrusion filter which characterized in that: the filter comprises a shell (1), wherein a fluid inlet and a fluid outlet are respectively formed in the left end and the right end of the shell (1), a filter cavity is formed in the bottom of the inner side of the shell (1), and the filter cavity is communicated with the fluid inlet and the fluid outlet; a sewage draining outlet is formed in the bottom of the shell (1), the sewage draining outlet is communicated with the filtering cavity, a filtering screen (2) is arranged in the filtering cavity, a filtering screen limiter (3) is fixedly connected to the bottom of the filtering screen (2), the filtering screen limiter (3) is movably arranged in the sewage draining outlet, a leakage-preventing mechanism is arranged at the top of the filtering screen (2), and a sealing mechanism is arranged between the filtering screen limiter (3) and the sewage draining outlet;

the anti-leakage mechanism comprises a matching ring (4), a fixing ring (5) and an annular sealing ring (6), the matching ring (4) is fixedly arranged on the inner wall of the top of the filter cavity, the fixing ring (5) is fixedly connected to the top of the filter screen (2), the annular sealing ring (6) is fixedly connected to one side face, close to the matching ring (4), of the fixing ring (5), an annular groove is formed in one side face, close to the filter screen (2), of the matching ring (4), and the size of the annular sealing ring (6) is matched with that of the annular groove;

sealing mechanism includes first sealing ring (7) and second sealing ring (8), first sealing ring (7) fixed connection is kept away from on one section week side of casing (1) in filter screen stopper (3), first sealing ring (7) top fixedly connected with second sealing ring (8), second sealing ring (8) fixed connection is on filter screen stopper (3) week side, first cooperation groove and second cooperation groove have been seted up to casing (1) drain bottom, first sealing ring (7) and second sealing ring (8) are located first cooperation groove and second cooperation inslot portion respectively.

2. The filter screen non-leakage and non-extrusion filter according to claim 1, wherein the inner walls of the fluid inlet and the fluid outlet formed at the left and right ends of the housing (1) are respectively provided with a first internal thread and a second internal thread.

3. A filter screen leak-free and squeeze-free filter according to claim 2, wherein a graphite packing (9) is provided between the annular groove provided on the side of the mating ring (4) and the annular sealing ring (6).

4. A filter screen leak-free and squeeze-free filter according to claim 3, wherein the inner diameter of the mating ring (4) is smaller than the inner diameter of the fixing ring (5).

5. The filter screen leakage-free extrusion-free filter as claimed in claim 4, wherein a third internal thread is arranged on the inner wall of the sewage outlet of the shell (1), an external thread is arranged on the outer side wall of the filter screen limiter (3), and the external thread is matched with the third internal thread.

6. The filter screen leakage-free extrusion-free filter according to claim 5, wherein a sewage discharge hole is formed at the bottom of the filter screen stopper (3), and a sewage discharge plug (10) is fixedly connected to the inner wall of the sewage discharge hole.

7. The filter screen leak-free and extrusion-free filter according to claim 1, wherein the first sealing ring (7) and the second sealing ring (8) are fixedly connected with a first annular elastic pad (11) and a second annular elastic pad (12) respectively on one side surface close to the housing (1).