CN113154578A

CN113154578A - Filter equipment for new trend system

Info

Publication number: CN113154578A
Application number: CN202110115874.1A
Authority: CN
Inventors: 白秀滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-07-23

Abstract

The invention relates to a filtering device, in particular to a filtering device for a fresh air system. The heat insulation device comprises a conduit I, a blocking shell, an inner shell, an electric heating plate and heat insulation cotton, wherein the conduit I is of a hollow structure, the inner end of the left part of the conduit I is fixedly connected with the blocking shell, the diameter of the inner shell is gradually reduced from left to right, the inner shell is inserted into a groove I formed by the blocking shell and the conduit I, the electric heating plate is inserted into a groove II formed by the inner shell and the conduit I, and the electric heating plate wraps the outer end face of the inner shell; the electric heating plate conducts heat to the inner shell, and when the fresh air system is started to pump outside air into a room, the electric heating plate serves as a filtering device and is arranged in the fresh air system to heat the air.

Description

Filter equipment for new trend system

Technical Field

The invention relates to a filtering device, in particular to a filtering device for a fresh air system.

Background

For example, a new trend system filter equipment of publication No. CN209857363U, including the main pipeline, characterized by: one side of main line is provided with the spout, a set of round bar three of one side upper portion fixed connection of main line, the anterior groove fixed connection round bar four of main line, be provided with the slider in the spout, one side of slider one side fixed connection U-shaped piece, the one end of the articulated connecting rod two in opposite side center of slider, the other end of connecting rod two articulates in rear portion one side of roof, roof one end is provided with a set of round hole two, every round hole two encircles respectively round bar three, slider lower part fixed connection square, be provided with square groove two in the square, be provided with round bar two in the square groove two. The utility model relates to a new trend equipment field, specifically say, relate to a new trend system filter equipment. The utility model relates to a fresh air system filter device, which is beneficial to realizing the replacement of a filter element; but the device cannot heat the air.

Disclosure of Invention

The invention aims to provide a filter device for a fresh air system, which can heat air.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a new trend is filter equipment for system, includes pipe I, fender shell, inner shell, electric plate and heat preservation cotton, pipe I is hollow structure, and the inner rigid coupling fender shell of I left part of pipe, the diameter of inner shell decrease progressively from left to right, and the inner shell is inserted in the recess I that fender shell and pipe I formed, and the electric plate is inserted in recess II that inner shell and pipe I formed, and the outer terminal surface of electric plate parcel inner shell has been inserted between electric plate and the pipe I to keep warm cotton, and the outside extension in right part of inner shell is equipped with vertically platelike structure, the longitudinal edge of platelike structure and the interior half section laminating of I right part edge of pipe end.

The filtering device for the fresh air system further comprises an oil absorption wall and intercepting arms, the inner end face of the inner shell is fixedly connected with the oil absorption wall, the inner end face of the oil absorption wall is integrally connected with one row of intercepting arms from left to right, the intercepting arms from left to right are provided with through openings, and the diameters of the through openings from left to right are gradually reduced.

This filter equipment for new trend system still includes upright portion and horizontal portion, and every interception arm is last all rigid coupling from top to bottom and is listed as upright portion, and the left part of every upright portion all is equipped with the horizontal portion of body coupling.

This filter equipment for new trend system is still including adsorbing cotton and triangular groove, and the rigid coupling has the absorption cotton in the downside contained angle of the vertical portion that is located the top and horizontal portion, and the lower extreme that adsorbs the cotton is the cambered surface, adsorbs the centre of cotton lower extreme to be equipped with the triangular groove.

This filter equipment for new trend system still includes mountain style of calligraphy stifled valve, slide bar, spacing portion and spring, is located the right part rigid coupling spacing of the interception arm of right-hand member, and spacing center sliding connection slide bar, the left end rigid coupling mountain style of calligraphy stifled valve of slide bar, and the passing through mouth that the shutoff of mountain style of calligraphy stifled valve is located the right-hand member, and spacing portion rigid coupling is equipped with the spring between mountain style of calligraphy stifled valve and the spacing.

The filter device for the fresh air system further comprises a connecting ring I, a guide pipe II, a connecting ring II, a mounting frame I, hygroscopic cotton, a buckle shell, a connecting ring III, a convex part and inserting columns, wherein the outer ring at the right end of the guide pipe I is fixedly connected with the connecting ring I, the left end and the right side of the outer ring of the guide pipe II are fixedly connected with the connecting ring II respectively, the connecting ring I and the connecting ring II positioned on the left side are fixedly connected in a detachable mode, the mounting frame I is in clearance fit at the inner end of the guide pipe II, the left end of the mounting frame I is attached to the right end of an inner shell, the hygroscopic cotton is fixedly connected in the mounting frame I, the buckle shell is inserted and buckled at the right end of the guide pipe II, the left end of the buckle shell is fixedly connected with the connecting ring III, the connecting ring III is detachably and fixedly connected with the connecting ring II positioned on the right side, the front part and the rear part of the right end of the buckle shell are respectively integrally connected with the convex part, the left ends of the two convex parts are respectively fixedly connected with the inserting columns, the upper part and the lower part of the right end of the inner shell, two plug posts penetrate through the absorbent cotton.

This new trend is filter equipment for system still includes installing frame II and active carbon filter screen, II clearance fit of installing frame are in the inner of pipe II, and the left end of installing frame II and the right-hand member laminating of installing frame I, rigid coupling active carbon filter screen in the installing frame II.

The structure of the active carbon filter screen is wave-shaped.

This filter equipment for new trend system is still including inhaling sound cotton, through hole I and through hole II, inhale the cotton structure of sound and be the annular, inhale the cotton outer lane circumference of sound and evenly be equipped with a plurality of through holes I that run through to the center, inhale the cotton circumference of sound and be equipped with the through hole II that runs through from left to right, through hole II and the intercommunication of through hole I inhale the cotton clearance fit of sound in pipe II, inhale the right-hand member laminating of the cotton left end of sound and installing frame II, inhale the cotton right-hand member of sound and the left end face laminating of detaining the shell.

This filter equipment for new trend system still includes the post of flavouring, and the post clearance fit of flavouring is in through hole II.

The filter device for the fresh air system has the beneficial effects that:

the air filter is used as a filtering device and is arranged in a fresh air system to heat air, the diameter of the inner shell is gradually reduced from left to right, the heat conduction area is increased, and meanwhile, when moisture generated by heating generates water drops, the moisture is convenient to fall from right to left and flow out; the hollow structure of the guide pipe I and the heat insulation cotton also play a role in noise reduction; when the external environment has more oil smoke, the surface of the oil absorption wall and the interception arm are used as attachment surfaces of the oil smoke, and the oil smoke enters along with the air and is easy to impact on the oil absorption wall and the interception arm; because of the interval that the interception arm from left to right reduces gradually, therefore it is easy evenly distributed that adnexed greasy dirt is on it, and the interception arm greasy dirt that is not located the left end is more, and then adsorbs the greasy dirt maximize, and the contained angle of interception arm and oil absorption wall is easy to be detained because of the greasy dirt that the air circles round and leaves, and the greasy dirt is easily hung on the corner, consequently easily piles up the greasy dirt in the corner department, and then realizes high-efficient interception greasy dirt.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall structure of a filter device for a fresh air system according to the present invention;

FIG. 2 is a partial schematic view of the first embodiment of the present invention;

FIG. 3 is a second partial schematic structural view of the present invention;

FIG. 4 is a third schematic view of a portion of the present invention;

FIG. 5 is a fourth schematic view of a portion of the present invention;

fig. 6 is a partial structural schematic diagram of the invention.

In the figure: a conduit I1; a connecting ring I102; a shield shell 103; an inner casing 2; an oil suction wall 201; an intercept arm 202; a standing part 203; a lateral portion 204; absorbent cotton 205; a triangular groove 206; a chevron plug valve 207; a slide bar 208; a limiting frame 209; a stopper portion 210; a spring 211; an electric hot plate 3; heat preservation cotton 301; a conduit II 4; a connecting ring II 401; a frame I402 is installed; absorbent cotton 403; installing a frame II 404; an activated carbon filter screen 405; sound absorption cotton 5; a through hole I501; a through hole II 502; a seasoning column 503; a buckle shell 6; a connecting ring III 601; a convex portion 602; and a post 603.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in the figure, a new trend filter equipment for system, including pipe I1, fender shell 103, inner shell 2, electric plate 3 and heat preservation cotton 301, pipe I1 is hollow structure, and the inner rigid coupling fender shell 103 of pipe I1 left part, the diameter of inner shell 2 is decreased progressively from left to right, and inner shell 2 is inserted in the recess I that fender shell 103 and pipe I1 formed, and electric plate 3 is inserted in recess II that inner shell 2 and pipe I1 formed, and the outer terminal surface of electric plate 3 parcel inner shell 2, and it has heat preservation cotton 301 to install between electric plate 3 and the pipe I1, and the right part of inner shell 2 outwards extends and is equipped with vertically platelike structure, the longitudinal edge of platelike structure and the interior half section laminating of pipe I1 right part edge. The electric heating plate 3 is electrified, the electric heating plate 3 conducts heat to the inner shell 2, when the fresh air system is started to pump outside air indoors, the electric heating plate serves as a filtering device and is installed in the fresh air system to heat the air, the conduit I1 is of a hollow structure and is matched with the heat insulation cotton 301, the heat insulation performance is good, the space passes through the inner shell 2, the diameter of the inner shell 2 is gradually reduced from left to right, the heat conduction area is increased, and meanwhile when moisture is generated due to heating to generate water drops, the moisture is convenient to fall from right to left and flow out. The hollow structure of pipe I1 and heat preservation cotton 301 also play a noise reduction role.

The second embodiment is as follows:

as shown in the figure, the filter device for the fresh air system further comprises an oil absorption wall 201 and intercepting arms 202, the inner end face of the inner shell 2 is fixedly connected with the oil absorption wall 201, the inner end face of the oil absorption wall 201 is integrally connected with a row of intercepting arms 202 from left to right, the intercepting arms 202 from left to right are provided with through openings, and the diameters of the through openings from left to right are gradually reduced. When more oil smoke exists in the external environment, the surface of the oil absorption wall 201 and the interception arm 202 serve as attachment surfaces of the oil smoke, the oil smoke enters along with the air and is easy to strike on the oil absorption wall 201 and the interception arm 202, wood fibers are preferably added on the oil absorption wall 201 and the interception arm 202 to serve as materials for inhibiting bacteria and peculiar smell and absorbing oil, the inner shell 2 is easy to replace, the inner shell 2, the oil absorption wall 201 and the interception arm 202 can be replaced as a whole, when the air is lapped on the interception arm 202, the distance between the interception arm 202 from left to right is gradually reduced, oil stains attached to the interception arm 202 are easy to be uniformly distributed, oil stains on the interception arm 202, which are not located at the left end, are more, oil stains are maximum in adsorption, oil stains left due to air convolution are easy to be detained at the included angle between the interception arm 202 and the oil absorption wall 201, the oil stains are easy to hang at corners, and are easy to accumulate at the corners, and further realize efficient oil stains interception. And the oil dirt accumulated in the space above the two intercepting arms 202 can fall to the space formed by the two intercepting arms 202 below due to the downward flow of moisture, and the oil dirt is stored in the stroke, so that the oil dirt cannot flow to the deep part of the pipeline due to the air suction.

The third concrete implementation mode:

as shown in the figure, the filtering device for the fresh air system further comprises a vertical part 203 and a horizontal part 204, each intercepting arm 202 is fixedly connected with a vertical part 203 from top to bottom, and the left part of each vertical part 203 is provided with the horizontal part 204 which is integrally connected. The vertical part 203 and the horizontal part 204 are formed into a component, so that air sucked into the component is easy to generate a whirling airflow, and then carried oil dirt is left, and the effect of absorbing the oil dirt is increased.

The fourth concrete implementation mode:

as shown in the figure, this new trend is filter equipment for system still includes to adsorb cotton 205 and triangular groove 206, and the rigid coupling has in the downside contained angle of the upright portion 203 and the horizontal portion 204 that are located the top to adsorb cotton 205, and the lower extreme that adsorbs cotton 205 is the cambered surface, and the centre of adsorbing cotton 205 lower extreme is equipped with triangular groove 206. The adsorption cotton 205 further adsorbs oil dirt and moisture, and the triangular groove 206 is easy to adsorb the cotton 205 to capture oil dirt, so that the oil dirt and the oil dirt are quickly adhered and accumulated to form the oil dirt.

The fifth concrete implementation mode:

as shown in the figure, the filtering device for the fresh air system further comprises a Chinese character 'shan' shaped blocking valve 207, a sliding rod 208, a limiting frame 209, a limiting part 210 and a spring 211, wherein the right part of the intercepting arm 202 positioned at the right end is fixedly connected with the limiting frame 209, the center of the limiting frame 209 is in sliding connection with the sliding rod 208, the left end of the sliding rod 208 is fixedly connected with the Chinese character 'shan' shaped blocking valve 207, the Chinese character 'shan' shaped blocking valve 207 blocks a passing hole positioned at the right end, the limiting part 210 is fixedly connected at the right end of the sliding rod 208, and the spring 211 is arranged between the Chinese character 'shan' shaped blocking valve 207 and the limiting frame 209. When the chevron-shaped blocking valve 207 is used as a one-way valve, the fresh air system is closed when not working, and external oil stains are prevented from entering. When air is sucked, the air pressure pushes and presses the herringbone blocking valve 207 rightwards to open the inlet, the structure of the herringbone blocking valve 207 enables the air flow to push the herringbone blocking valve to move rightwards easily, when air is stopped being sucked, the herringbone blocking valve 207 can push away and knock out a blockage through the structure protruding from the middle of the left end through elastic force resetting, the blockage can fall into the space between the intercepting arms 202 after being knocked out, and pollution to the external environment due to reverse movement of the air flow can be avoided.

The sixth specific implementation mode:

as shown in the figure, the filter device for the fresh air system further comprises a connecting ring I102, a conduit II 4, a connecting ring II 401, a mounting frame I402, moisture absorption cotton 403, a buckle shell 6, a connecting ring III 601, a convex part 602 and an inserting column 603, wherein the connecting ring I102 is fixedly connected to the outer ring of the right end of the conduit I1, the connecting ring II 401 is fixedly connected to the left end and the right end of the outer ring of the conduit II 4, the connecting ring I102 and the connecting ring II 401 positioned on the left side are fixedly connected in a detachable mode, the mounting frame I402 is in clearance fit with the inner end of the conduit II 4, the left end of the mounting frame I402 is attached to the right end of the inner shell 2, the moisture absorption cotton 403 is fixedly connected to the mounting frame I402, the buckle shell 6 is inserted and buckled at the right end of the conduit II 4, the left end of the buckle shell 6 is fixedly connected to the ring III 601, the connecting ring III 601 is detachably and fixedly connected to the connecting ring II 401 positioned on the right side, the front and back two parts of the buckle shell 6 are integrally connected to one convex part 602, the left end of the two convex parts is fixedly connected to the right end of the two convex parts 603, the left ends of the two insertion columns 603 are respectively attached to the upper and lower parts of the right end of the inner shell 2, and the two insertion columns 603 penetrate through the absorbent cotton 403. The absorbent cotton 403 is used for absorbing moisture and residual oil stain and has the function of noise reduction. The absorbent cotton 403 is convenient to detach and replace along with the mounting frame I402.

The seventh embodiment:

as shown in the figure, this new trend is filter equipment for system still includes installing frame II 404 and active carbon filter screen 405, installing frame II 404 clearance fit is in the inner of pipe II 4, and the left end of installing frame II 404 is laminated with the right-hand member of installing frame I402, rigid coupling active carbon filter screen 405 in installing frame II 404. The activated carbon filter screen 405 is used to filter impurities.

The specific implementation mode is eight:

as shown, the activated carbon filter screen 405 has a wave-shaped structure. The wavy activated carbon filter screen 405 increases the adsorption area and is easy to accumulate residual oil stains.

The specific implementation method nine:

as shown in the figure, this filter equipment for new trend system still includes inhales sound cotton 5, through hole I501 and through hole II 502, inhale the structure of sound cotton 5 and be the annular, inhale the outer lane circumference of sound cotton 5 and evenly be equipped with a plurality of through holes I501 that run through to the center, inhale sound cotton 5 circumference and be equipped with through hole II 502 that run through from left to right, through hole II 502 and the intercommunication of through hole I501, inhale sound cotton 5 clearance fit in pipe II 4, inhale the left end of sound cotton 5 and the right-hand member laminating of installing frame II 404, inhale the right-hand member of sound cotton 5 and the left end face laminating of detaining shell 6. Through holes I501 and II 502 are used for increasing the noise reduction effect.

The detailed implementation mode is ten:

as shown in the figure, the filter device for the fresh air system further comprises a seasoning column 503, and the seasoning column 503 is in clearance fit in the through hole II 502. When the air flow passes through the through hole I501 and the through hole II 502, the taste of the seasoning column 503 is brought into the room for flavoring, and after the temperature of the electric hot plate 3 is raised, the hot air flow can be used for further flavoring. Because of the post 503 parcel of flavouring is in inhaling sound cotton 5, consequently the smell can be comparatively soft, and the smell is easily attached to in inhaling sound cotton 5, can regard whether change the post 503 of flavouring according to the taste of inhaling sound cotton 5, and then be convenient for discern the smell residual quantity, and the cooperation adds the fragrant feasible taste of adding fragrance and can adjust.

The invention relates to a filter device for a fresh air system, which has the working principle that:

the electric heating plate 3 is electrified, the electric heating plate 3 conducts heat to the inner shell 2, when the fresh air system is started to pump outside air indoors, the electric heating plate serves as a filtering device and is installed in the fresh air system to heat the air, the conduit I1 is of a hollow structure and is matched with the heat insulation cotton 301, the heat insulation performance is good, the space passes through the inner shell 2, the diameter of the inner shell 2 is gradually reduced from left to right, the heat conduction area is increased, and meanwhile when moisture is generated due to heating to generate water drops, the moisture is convenient to fall from right to left and flow out. The hollow structure of pipe I1 and heat preservation cotton 301 also play a noise reduction role. When more oil smoke exists in the external environment, the surface of the oil absorption wall 201 and the interception arm 202 serve as attachment surfaces of the oil smoke, the oil smoke enters along with the air and is easy to strike on the oil absorption wall 201 and the interception arm 202, wood fibers are preferably added on the oil absorption wall 201 and the interception arm 202 to serve as materials for inhibiting bacteria and peculiar smell and absorbing oil, the inner shell 2 is easy to replace, the inner shell 2, the oil absorption wall 201 and the interception arm 202 can be replaced as a whole, when the air is lapped on the interception arm 202, the distance between the interception arm 202 from left to right is gradually reduced, oil stains attached to the interception arm 202 are easy to be uniformly distributed, oil stains on the interception arm 202, which are not located at the left end, are more, oil stains are maximum in adsorption, oil stains left due to air convolution are easy to be detained at the included angle between the interception arm 202 and the oil absorption wall 201, the oil stains are easy to hang at. And the oil dirt accumulated in the space above the two intercepting arms 202 can fall to the space formed by the two intercepting arms 202 below due to the downward flow of moisture, and the oil dirt is stored in the stroke, so that the oil dirt cannot flow to the deep part of the pipeline due to the air suction. The vertical part 203 and the horizontal part 204 are formed into a component, so that air sucked into the component is easy to generate a whirling airflow, and then carried oil dirt is left, and the effect of absorbing the oil dirt is increased. The adsorption cotton 205 further adsorbs oil dirt and moisture, and the triangular groove 206 is easy to adsorb the cotton 205 to capture oil dirt, so that the oil dirt and the oil dirt are quickly adhered and accumulated to form the oil dirt. When the chevron-shaped blocking valve 207 is used as a one-way valve, the fresh air system is closed when not working, and external oil stains are prevented from entering. When air is sucked, the air pressure pushes and presses the herringbone blocking valve 207 rightwards to open the inlet, the structure of the herringbone blocking valve 207 enables the air flow to push the herringbone blocking valve to move rightwards easily, when air is stopped being sucked, the herringbone blocking valve 207 can push away and knock out a blockage through the structure protruding from the middle of the left end through elastic force resetting, the blockage can fall into the space between the intercepting arms 202 after being knocked out, and pollution to the external environment due to reverse movement of the air flow can be avoided. The absorbent cotton 403 is used for absorbing moisture and residual oil stain and has the function of noise reduction. The absorbent cotton 403 is convenient to detach and replace along with the mounting frame I402. The wavy activated carbon filter screen 405 increases the adsorption area and is easy to accumulate residual oil stains. Through holes I501 and II 502 are used for increasing the noise reduction effect. When the air flow passes through the through hole I501 and the through hole II 502, the taste of the seasoning column 503 is brought into the room for flavoring, and after the temperature of the electric hot plate 3 is raised, the hot air flow can be used for further flavoring. Because of the post 503 parcel of flavouring is in inhaling sound cotton 5, consequently the smell can be comparatively soft, and the smell is easily attached to in inhaling sound cotton 5, can regard whether change the post 503 of flavouring according to the taste of inhaling sound cotton 5, and then be convenient for discern the smell residual quantity, and the cooperation adds the fragrant feasible taste of adding fragrance and can adjust.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a new trend filter equipment for system, includes pipe I (1), fender shell (103), inner shell (2), electric plate (3) and heat preservation cotton (301), its characterized in that: pipe I (1) is hollow structure, and the inner rigid coupling of pipe I (1) left part keeps off shell (103), and the diameter of inner shell (2) is decreased progressively from left to right, and inner shell (2) are inserted in keeping off shell (103) and pipe I (1) recess I that forms, and electric plate (3) are inserted in the recess II that inner shell (2) and pipe I (1) formed, and electric plate (3) wrap up the outer terminal surface of inner shell (2), and it has heat preservation cotton (301) to have inserted between electric plate (3) and pipe I (1), and the right part of inner shell (2) outwards extends and is equipped with vertically platelike structure, the longitudinal edge of platelike structure end and the interior half section laminating of pipe I (1) right side end.

2. The filter device for a fresh air system according to claim 1, wherein: the filtering device for the fresh air system further comprises an oil absorption wall (201) and intercepting arms (202), the inner end face of the inner shell (2) is fixedly connected with the oil absorption wall (201), the inner end face of the oil absorption wall (201) is integrally connected with one line of intercepting arms (202) from left to right, the intercepting arms (202) from left to right are provided with through openings, and the diameters of the through openings from left to right are gradually reduced.

3. The filter device for the fresh air system as claimed in claim 2, wherein: this new trend is filter equipment for system still includes upright portion (203) and horizontal portion (204), all the rigid coupling from top to bottom on every interception arm (202) stands portion (203) in a row, and the left part of every upright portion (203) all is equipped with horizontal portion (204) of body coupling.

4. The filter device for the fresh air system as claimed in claim 3, wherein: this new trend is filter equipment for system still including adsorbing cotton (205) and triangular groove (206), the downside contained angle that is located upright portion (203) and horizontal portion (204) of top in the rigid coupling have adsorb cotton (205), the lower extreme that adsorbs cotton (205) is the cambered surface, adsorbs the centre of cotton (205) lower extreme and is equipped with triangular groove (206).

5. The filter device for the fresh air system as claimed in claim 4, wherein: this filter equipment for new trend system still includes mountain style of calligraphy stifled valve (207), slide bar (208), spacing (209), spacing portion (210) and spring (211), be located the right part rigid coupling spacing (209) of the interception arm (202) of right-hand member, the center sliding connection slide bar (208) of spacing (209), the left end rigid coupling mountain style of calligraphy stifled valve (207) of slide bar (208), mountain style of calligraphy stifled valve (207) shutoff is located the mouth that passes through of right-hand member, spacing portion (210) rigid coupling is at the right-hand member of slide bar (208), be equipped with spring (211) between mountain style of calligraphy stifled valve (207) and spacing (209).

6. The filter device for the fresh air system as claimed in claim 5, wherein: the filter device for the fresh air system further comprises a connecting ring I (102), a conduit II (4), a connecting ring II (401), a mounting frame I (402), absorbent cotton (403), a buckle shell (6), a connecting ring III (601), a convex part (602) and an inserting column (603), wherein the connecting ring I (102) is fixedly connected to the outer ring of the right end of the conduit I (1), the connecting ring II (401) is fixedly connected to the left end and the right side of the outer ring of the conduit II (4), the connecting ring I (102) and the connecting ring II (401) positioned on the left side are fixedly connected in a detachable mode, the mounting frame I (402) is in clearance fit with the inner end of the conduit II (4), the left end of the mounting frame I (402) is attached to the right end of the inner shell (2), the absorbent cotton (403) is fixedly connected to the mounting frame I (402), the buckle shell (6) is inserted and buckled at the right end of the conduit II (4), the ring III (601) is fixedly connected to the left end of the buckle shell (6), and the connecting ring II (601) is detachably and fixedly connected to the connecting ring (401) positioned on the right side, the front part and the rear part of the right end of the buckle shell (6) are respectively and integrally connected with a convex part (602), the left ends of the two convex parts (602) are respectively and fixedly connected with an inserting column (603), the left ends of the two inserting columns (603) are respectively attached to the upper part and the lower part of the right end of the inner shell (2), and the two inserting columns (603) penetrate through the absorbent cotton (403).

7. The filter device for the fresh air system as claimed in claim 6, wherein: this new trend is filter equipment for system still includes installing frame II (404) and active carbon filter screen (405), installing frame II (404) clearance fit is in the inner of pipe II (4), and the left end of installing frame II (404) is laminated with the right-hand member of installing frame I (402), rigid coupling active carbon filter screen (405) in installing frame II (404).

8. The filter device for the fresh air system as claimed in claim 7, wherein: the structure of the active carbon filter screen (405) is wave-shaped.

9. The filter device for the fresh air system as claimed in claim 8 or 7, wherein: this filter equipment for new trend system still includes inhales sound cotton (5), through hole I (501) and through hole II (502), the structure of inhaling sound cotton (5) is the annular, inhales the outer lane circumference of sound cotton (5) and evenly is equipped with a plurality of through holes I (501) that run through to the center, inhales sound cotton (5) circumference and is equipped with through hole II (502) that run through from left to right, through hole II (502) and through hole I (501) intercommunication, inhales sound cotton (5) clearance fit in pipe II (4), inhales the left end of sound cotton (5) and the right-hand member laminating of installing frame II (404), the right-hand member of inhaling sound cotton (5) and the left end face laminating of detaining shell (6).

10. The filter device for the fresh air system as claimed in claim 9, wherein: the filtering device for the fresh air system further comprises a seasoning column (503), and the seasoning column (503) is in clearance fit in the through hole II (502).