CN108236817B - Active carbon type harmful gas filter box with noise elimination structure - Google Patents

Active carbon type harmful gas filter box with noise elimination structure Download PDF

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Publication number
CN108236817B
CN108236817B CN201810056688.3A CN201810056688A CN108236817B CN 108236817 B CN108236817 B CN 108236817B CN 201810056688 A CN201810056688 A CN 201810056688A CN 108236817 B CN108236817 B CN 108236817B
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hole
sides
rotating shaft
plate
filter box
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CN201810056688.3A
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CN108236817A (en
Inventor
谢卫忠
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Suzhou Kelly Hoon Laboratory Equipment Co ltd
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Suzhou Kelly Hoon Laboratory Equipment Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces, i.e. axial filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography

Abstract

The invention discloses an active carbon type harmful gas filter box with a noise elimination structure, which comprises a filter box body, wherein an installation groove is formed in the inner wall of the top of the filter box body, a stepping motor is installed in the installation groove, a first rotating shaft is welded on an output shaft of the stepping motor, transverse plates are welded on the inner walls of two sides of the filter box body, vertical plates are welded on one sides, close to each other, of the two transverse plates, the first rotating shaft is located between the two vertical plates, a same moving plate is slidably installed on one sides, close to each other, of the two vertical plates, a threaded hole is formed in the top of the moving plate, external threads are formed in the outer side of the first rotating shaft, and. The filter screen has high practicability, the filter screen can be effectively prevented from being blocked in the process of repeatedly moving up and down by the first rotating shaft and the first magnet, and the clearing efficiency of inhalable particles is effectively improved by the drawing wire and the second spring.

Description

Active carbon type harmful gas filter box with noise elimination structure
Technical Field
The invention relates to the technical field of filter boxes, in particular to an active carbon type harmful gas filter box with a noise elimination structure.
Background
In recent years, the air pollution is increasingly serious, the world index is that PM2.5 (particles with the diameter of inhalable particles being less than or equal to 2.5 microns) is less than 10, the safety value is high, most areas of China are higher than 50, the air quality is poor, and the human health is seriously affected, so that the air is required to be effectively filtered and sterilized outside air entering a room, the air is purified to protect the health of a human body, the existing filter box basically has no noise when working, and after retrieval, the device for filtering, sterilizing and eliminating harmful gases, disclosed by the application publication No. CN103245010A, comprises a box body, and a filter, a plate type low-temperature plasma, an ozone filter and a fan device which are sequentially arranged in the box body side by side, wherein the fan device is used for sucking the air into the box body and blowing out after being treated by the filter, the plate type low-temperature plasma and the ozone filter, and the fan device sucks the, the filter box has the advantages that inhalable particles in air entering the box body and harmful gas in the air are treated, the air quantity of the air cleaning treatment is subjected to stepless regulation by controlling the rotating speed of the motor, the application range of air filtration and sterilization is greatly expanded, the energy consumption of the device is reduced, the harmful gas in the air can be eliminated, the concentration of the harmful gas in the air is controlled within the national standard range, but a filter screen in a filter is easy to block, and the efficiency of eliminating the inhalable particles is low, so that the active carbon type harmful gas filter box with the noise elimination structure is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an active carbon type harmful gas filter box with a noise elimination structure.
The invention provides an active carbon type harmful gas filter box with a noise elimination structure, which comprises a filter box body, wherein an installation groove is formed in the inner wall of the top of the filter box body, a stepping motor is installed in the installation groove, a first rotating shaft is welded on an output shaft of the stepping motor, transverse plates are welded on the inner walls of two sides of the filter box body, vertical plates are welded on one sides, close to each other, of the two transverse plates, the first rotating shaft is positioned between the two vertical plates, a same moving plate is slidably installed on one sides, close to each other, of the two vertical plates, a threaded hole is formed in the top of the moving plate, an external thread is formed in the outer side of the first rotating shaft, the external thread on the first rotating shaft is in threaded connection with the threaded hole, first magnets are fixedly installed on two sides of the bottom of the moving plate, sliding grooves below the first rotating, the top ends of the two first springs are fixedly provided with the same filter screen, the top of the filter screen is fixedly provided with two second magnets, the first magnets and the second magnets on the same vertical axis are repelled, the top of the transverse plate is welded with a fixed plate, the top of the fixed plate is welded on the inner wall of the top of the filter box body, one sides of the two fixed plates, which are close to each other, are respectively provided with a rotating hole, the outer side of the first rotating shaft is fixedly sleeved with a first bevel gear, the rotating holes are internally and rotatably provided with a second rotating shaft, one ends of the two second rotating shafts, which are close to each other, extend to the outer side of the rotating holes and are welded with second bevel gears, the first bevel gear is meshed with the two second bevel gears, one sides of the two fixed plates, which are close to each other, are respectively provided with a connecting hole below the rotating holes, the inner wall of the top of the connecting, the welding of the top of embedded plate has a plurality of second springs, the top that is located a plurality of second springs on the same embedded plate all welds on the top inner wall of connecting hole, the mounting hole has been seted up on the embedded plate, install ventilative cover in the mounting hole, all set up the inlet port that is located the sliding tray top on the both sides inner wall of rose box body, the internal diameter of inlet port is less than ventilative cover's height, the inlet port is located same horizontal axis with ventilative cover, all set up the venthole that is located the sliding tray below on the both sides inner wall of rose box body.
Preferably, all set up the first hole of getting that is located between inlet port and the sliding tray on the both sides inner wall of rose box body, slidable mounting has first closing plate in the first hole of getting, all sets up the second hole of getting that is located the venthole below on the both sides inner wall of rose box body, and slidable mounting has the second closing plate in the second hole of getting.
Preferably, the ventilation cover is internally provided with activated carbon.
Preferably, the two sides of the filter screen are respectively connected with the inner wall of one side of the two sliding grooves, which is far away from each other, in a sliding manner.
Preferably, the side of the first magnet and the second magnet which are positioned on the same vertical axis and close to each other is provided with an N pole, and the first magnet and the second magnet which are positioned on the same vertical axis are repelled by the two N poles.
Preferably, the two embedded plates are symmetrically arranged and are in sliding connection with the inner walls of the corresponding connecting holes.
Preferably, the outer side of the second rotating shaft in the rotating hole is provided with a sliding block, the inner wall of the rotating hole is provided with an annular sliding rail, and the sliding block is connected with the annular sliding rail in a sliding manner.
Preferably, the top welding of step motor has the mounting panel, and step motor passes through the mounting panel screw thread to be fixed in on the top inner wall of mounting groove.
Compared with the prior art, the invention has the beneficial effects that:
(1) the filter box comprises a filter box body, a stepping motor, a first rotating shaft, a transverse plate, a vertical plate, a moving plate, a threaded hole, a first magnet, a first spring, a filter screen and a second magnet, wherein the stepping motor is started, an output shaft of the stepping motor drives the first rotating shaft to rotate, an external thread on the first rotating shaft is in threaded connection with the threaded hole, the moving plate is driven to move, the moving plate drives the first magnet to move, the first magnet is repelled with the second magnet to drive the second magnet to move, the second magnet drives the filter screen to move, and the filter screen can be effectively prevented from being blocked in the process of repeatedly moving up and down;
(2) the through fixing plate, the rotation hole, first conical gear, second conical gear, the second pivot, the connecting hole, erect the hole, the wire drawing, the embedded plate, the second spring, ventilative cover, inlet port and venthole cooperate, first pivot drives first conical gear and removes, first conical gear drives second conical gear and removes, second conical gear drives the second pivot and rotates, the second pivot drives the wire drawing and removes, make the wire drawing take place to become flexible, the second spring promotes the embedded plate because self elasticity and removes, the embedded plate moves ventilative cover and removes, because install the active carbon in ventilative cover, the internal diameter of inlet port is less than ventilative cover's height, ventilative cover can make the active carbon full contact in harmful gas and the ventilative cover at the in-process that removes, the effectual clearance efficiency that improves inhalable particulate matter.
The filter screen has high practicability, the filter screen can be effectively prevented from being blocked in the process of repeatedly moving up and down by the first rotating shaft and the first magnet, and the clearing efficiency of inhalable particles is effectively improved by the drawing wire and the second spring.
Drawings
Fig. 1 is a schematic structural diagram of an activated carbon type harmful gas filter box with a silencing structure, which is provided by the invention;
fig. 2 is a schematic structural view of a part a of an activated carbon type harmful gas filter box with a sound attenuation structure according to the present invention;
fig. 3 is a schematic structural diagram of a part B of an activated carbon type harmful gas filter box with a sound attenuation structure according to the present invention;
fig. 4 is a schematic structural diagram of a part C of an activated carbon type harmful gas filter box with a sound attenuation structure according to the present invention;
fig. 5 is a schematic structural diagram of a portion D of an activated carbon type harmful gas filter box with a sound attenuation structure according to the present invention.
In the figure: 1 rose box body, 2 mounting grooves, 3 step motor, 4 first pivot, 5 diaphragm, 6 risers, 7 movable plates, 8 screw holes, 9 first magnet, 10 sliding tray, 11 first spring, 12 filter screens, 13 second magnet, 14 fixed plates, 15 rotation holes, 16 first conical gear, 17 second conical gear, 18 second pivot, 19 connecting holes, 20 vertical holes, 21 wire drawing, 22 embedded plates, 23 second spring, 24 mounting holes, 25 ventilative cover, 26 inlet ports, 27 ventholes.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1-5, the embodiment provides an activated carbon type harmful gas filter box with a noise elimination structure, which comprises a filter box body 1, wherein an installation groove 2 is formed on the inner wall of the top of the filter box body 1, a stepping motor 3 is installed in the installation groove 2, a first rotating shaft 4 is welded on an output shaft of the stepping motor 3, transverse plates 5 are welded on the inner walls of two sides of the filter box body 1, vertical plates 6 are welded on one sides of the two transverse plates 5, which are close to each other, the first rotating shaft 4 is positioned between the two vertical plates 6, a same moving plate 7 is slidably installed on one side of the two vertical plates 6, a threaded hole 8 is formed in the top of the moving plate 7, external threads are formed on the outer side of the first rotating shaft 4, the external threads on the first rotating shaft 4 are in threaded connection with the threaded hole 8, first magnets 9 are fixedly installed on two sides of the bottom of the moving plate 7, sliding, the bottom inner wall of the sliding groove 10 is welded with first springs 11, the top ends of the two first springs 11 are fixedly provided with a same filter screen 12, the top of the filter screen 12 is fixedly provided with two second magnets 13, the first magnets 9 and the second magnets 13 on the same vertical axis are repelled, the top of the transverse plate 5 is welded with a fixed plate 14, the top of the fixed plate 14 is welded on the top inner wall of the filter box body 1, one sides of the two fixed plates 14 close to each other are both provided with a rotating hole 15, the outer side of the first rotating shaft 4 is fixedly sleeved with a first bevel gear 16, a second rotating shaft 18 is rotatably arranged in the rotating hole 15, one ends of the two second rotating shafts 18 close to each other extend to the outer side of the rotating hole 15 and are welded with second bevel gears 17, the first bevel gears 16 are meshed with the two second bevel gears 17, one sides of the two fixed plates 14 close to each other are both provided with, a vertical hole 20 is formed in the inner wall of the top of the connecting hole 19, a wire drawing 21 is wound on the outer side of the second rotating shaft 18, the bottom end of the wire drawing 21 penetrates through the corresponding vertical hole 20 and is fixedly connected with an embedded plate 22, a plurality of second springs 23 are welded to the top of the embedded plate 22, the top ends of the plurality of second springs 23 on the same embedded plate 22 are welded to the inner wall of the top of the connecting hole 19, a mounting hole 24 is formed in the embedded plate 22, a ventilation cover 25 is installed in the mounting hole 24, air inlet holes 26 located above the sliding groove 10 are formed in the inner walls of the two sides of the filter box body 1, the inner diameter of each air inlet hole 26 is smaller than the height of the ventilation cover 25, the air inlet holes 26 and the ventilation cover 25 are located on the same horizontal axis, air outlet holes 27 located below the sliding groove 10 are formed in the inner walls of the two sides of the filter box body 1, and the, The vertical plate 6, the moving plate 7, the threaded hole 8, the first magnet 9, the first spring 11, the filter screen 12 and the second magnet 13 are matched, the stepping motor 3 is started, an output shaft of the stepping motor 3 drives the first rotating shaft 4 to rotate, external threads on the first rotating shaft 4 are in threaded connection with the threaded hole 8, the moving plate 7 is driven to move, the moving plate 7 drives the first magnet 9 to move, the first magnet 9 is repelled with the second magnet 13 to drive the second magnet 13 to move, the second magnet 13 drives the filter screen 12 to move, and the filter screen 12 can be effectively prevented from being blocked in the process of repeatedly moving up and down; through the matching of the fixing plate 14, the rotating hole 15, the first bevel gear 16, the second bevel gear 17, the second rotating shaft 18, the connecting hole 19, the vertical hole 20, the wire drawing 21, the embedded plate 22, the second spring 23, the ventilation cover 25, the air inlet 26 and the air outlet 27, the first rotating shaft 4 drives the first bevel gear 16 to move, the first bevel gear 16 drives the second bevel gear 17 to move, the second bevel gear 17 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the wire drawing 21 to move, so that the wire drawing 21 is loosened, the second spring 23 pushes the embedded plate 22 to move due to the elasticity of the second spring 23, the embedded plate 22 drives the ventilation cover 25 to move, because the active carbon is installed in the ventilation cover 25, the inner diameter of the air inlet 26 is smaller than the height of the ventilation cover 25, the ventilation cover 25 can make the harmful gas fully contact with the active carbon in the ventilation cover 25 in the moving process, the device has the advantages that the cleaning efficiency of inhalable particles is effectively improved, the practicability is high, the filter screen 12 can be effectively prevented from being blocked in the process of repeatedly moving up and down through the first rotating shaft 4 and the first magnet 9, and the cleaning efficiency of the inhalable particles is effectively improved through the drawing wire 21 and the second spring 23.
In this embodiment, the inner walls of the two sides of the filtering box body 1 are both provided with a first material taking hole located between the air inlet 26 and the sliding groove 10, a first sealing plate is slidably mounted in the first material taking hole, the inner walls of the two sides of the filtering box body 1 are both provided with a second material taking hole located below the air outlet 27, a second sealing plate is slidably mounted in the second material taking hole, activated carbon is mounted in the ventilation cover 25, the two sides of the filtering net 12 are respectively slidably connected with the inner walls of the two sides far away from the sliding grooves 10, the sides of the first magnet 9 and the second magnet 13 located on the same vertical axis close to each other are both provided with N poles, the first magnet 9 and the second magnet 13 located on the same vertical axis repel each other through the two N poles, the two embedded plates 22 are symmetrically arranged, the embedded plates 22 are slidably connected with the inner walls of the corresponding connecting holes 19, a sliding block is mounted on the outer side of the second rotating shaft 18 located in the rotating, an annular slide rail is arranged on the inner wall of the rotating hole 15, the slide block is connected with the annular slide rail in a sliding way, an installation plate is welded on the top of the stepping motor 3, the stepping motor 3 is fixed on the inner wall of the top of the installation groove 2 through the thread of the installation plate, the filter box comprises a filter box body 1, a stepping motor 3, a first rotating shaft 4, a transverse plate 5, a vertical plate 6, a moving plate 7, a threaded hole 8, a first magnet 9, a first spring 11, a filter screen 12 and a second magnet 13 which are matched, the stepping motor 3 is started, an output shaft of the stepping motor 3 drives the first rotating shaft 4 to rotate, external threads on the first rotating shaft 4 are in threaded connection with the threaded hole 8 to drive the moving plate 7 to move, the moving plate 7 drives the first magnet 9 to move, the first magnet 9 is in repulsion with the second magnet 13 to drive the second magnet 13 to move, the second magnet 13 drives the filter screen 12 to move, and the filter screen 12 can be effectively prevented from being blocked in the process of repeatedly moving up and down; through the matching of the fixing plate 14, the rotating hole 15, the first bevel gear 16, the second bevel gear 17, the second rotating shaft 18, the connecting hole 19, the vertical hole 20, the wire drawing 21, the embedded plate 22, the second spring 23, the ventilation cover 25, the air inlet 26 and the air outlet 27, the first rotating shaft 4 drives the first bevel gear 16 to move, the first bevel gear 16 drives the second bevel gear 17 to move, the second bevel gear 17 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the wire drawing 21 to move, so that the wire drawing 21 is loosened, the second spring 23 pushes the embedded plate 22 to move due to the elasticity of the second spring 23, the embedded plate 22 drives the ventilation cover 25 to move, because the active carbon is installed in the ventilation cover 25, the inner diameter of the air inlet 26 is smaller than the height of the ventilation cover 25, the ventilation cover 25 can make the harmful gas fully contact with the active carbon in the ventilation cover 25 in the moving process, the device has the advantages that the cleaning efficiency of inhalable particles is effectively improved, the practicability is high, the filter screen 12 can be effectively prevented from being blocked in the process of repeatedly moving up and down through the first rotating shaft 4 and the first magnet 9, and the cleaning efficiency of the inhalable particles is effectively improved through the drawing wire 21 and the second spring 23.
In the embodiment, in use, the stepping motor 3 is started, the output shaft of the stepping motor 3 drives the first rotating shaft 4 to rotate, the external thread on the first rotating shaft 4 is in threaded connection with the threaded hole 8 to drive the moving plate 7 to move, so that the moving plate 7 slides on the vertical plate 6, the moving plate 7 drives the first magnet 9 to move, the first magnet 9 is repelled by the second magnet 13 to drive the second magnet 13 to move, the second magnet 13 drives the filter screen 12 to move, so that the filter screen 12 slides on the inner wall of the sliding groove 10, the filter screen 12 can effectively avoid blockage in the process of repeatedly moving up and down, the first rotating shaft 4 drives the first bevel gear 16 to move, the first bevel gear 16 is meshed with the second bevel gear 17 to drive the second bevel gear 17 to move, and the second bevel gear 17 drives the second rotating shaft 18 to rotate, second pivot 18 drives wire drawing 21 and removes, make wire drawing 21 take place not hard up, second spring 23 removes because self elasticity promotes embedded plate 22, make embedded plate 22 slide on the inner wall of connecting hole 19, embedded plate 22 drives ventilative cover 25 and removes, because install the active carbon in ventilative cover 25, and the internal diameter of inlet port 26 is less than ventilative cover 25's height, ventilative cover 25 can make harmful gas fully contact with the active carbon in ventilative cover 25 at the in-process that removes, the effectual clearance efficiency that improves inhalable particles.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. An activated carbon type harmful gas filter box with a noise elimination structure comprises a filter box body (1) and is characterized in that a mounting groove (2) is formed in the inner wall of the top of the filter box body (1), a stepping motor (3) is installed in the mounting groove (2), a first rotating shaft (4) is welded on an output shaft of the stepping motor (3), transverse plates (5) are welded on the inner walls of two sides of the filter box body (1), vertical plates (6) are welded on one sides, close to each other, of the two transverse plates (5), the first rotating shaft (4) is located between the two vertical plates (6), a same moving plate (7) is slidably installed on one side, close to each other, of the two vertical plates (6), a threaded hole (8) is formed in the top of the moving plate (7), an external thread is formed in the outer side of the first rotating shaft (4), and the external thread on the first rotating, first magnets (9) are fixedly arranged on two sides of the bottom of the movable plate (7), sliding grooves (10) located below the first rotating shaft (4) are formed in the inner walls of two sides of the filtering box body (1), first springs (11) are welded on the inner wall of the bottom of each sliding groove (10), the same filtering net (12) is fixedly arranged at the top ends of the two first springs (11), two second magnets (13) are fixedly arranged at the top of each filtering net (12), the first magnets (9) and the second magnets (13) located on the same vertical axis are mutually repelled, a fixing plate (14) is welded at the top of the transverse plate (5), the top of the fixing plate (14) is welded on the inner wall of the top of the filtering box body (1), rotating holes (15) are formed in one side, which the two fixing plates (14) are close to each other, a first conical gear (16) is fixedly sleeved on the outer side of, the second rotating shaft (18) is rotatably installed in the rotating hole (15), one ends, close to each other, of the two second rotating shafts (18) extend to the outer side of the rotating hole (15) and are welded with the second bevel gears (17), the first bevel gears (16) are meshed with the two second bevel gears (17) in a homogeneous mode, connecting holes (19) located below the rotating hole (15) are formed in one sides, close to each other, of the two fixing plates (14), vertical holes (20) are formed in the inner wall of the top of each connecting hole (19), drawn wires (21) are wound on the outer side of each second rotating shaft (18), the bottom ends of the drawn wires (21) penetrate through the corresponding vertical holes (20) and are fixedly connected with embedded plates (22), a plurality of second springs (23) are welded to the top of the embedded plates (22), the plurality of second springs (23) located on the same embedded plate (22) are welded to the inner wall of the top of each connecting hole, the embedded plate (22) is provided with a mounting hole (24), a ventilation cover (25) is mounted in the mounting hole (24), air inlet holes (26) positioned above the sliding groove (10) are formed in the inner walls of the two sides of the filter box body (1), the inner diameter of each air inlet hole (26) is smaller than the height of the ventilation cover (25), the air inlet holes (26) and the ventilation cover (25) are positioned on the same horizontal axis, and air outlet holes (27) positioned below the sliding groove (10) are formed in the inner walls of the two sides of the filter box body (1); in the using process, the stepping motor (3) is started, an output shaft of the stepping motor (3) drives the first rotating shaft (4) to rotate, external threads on the first rotating shaft (4) are in threaded connection with the threaded hole (8), the movable plate (7) is driven to move, the movable plate (7) slides on the vertical plate (6), the movable plate (7) drives the first magnet (9) to move, the first magnet (9) is repelled with the second magnet (13), the second magnet (13) is driven to move, the second magnet (13) drives the filter screen (12) to move, the filter screen (12) slides on the inner wall of the sliding groove (10), and the filter screen (12) can be effectively prevented from being blocked in the process of repeatedly moving up and down.
2. The activated carbon type harmful gas filter box with the sound attenuation structure according to claim 1, wherein the inner walls of both sides of the filter box body (1) are respectively provided with a first material taking hole between the air inlet hole (26) and the sliding groove (10), a first sealing plate is slidably mounted in the first material taking hole, the inner walls of both sides of the filter box body (1) are respectively provided with a second material taking hole below the air outlet hole (27), and a second sealing plate is slidably mounted in the second material taking hole.
3. The activated carbon type noxious gas filter tank having the muffling structure according to claim 1, wherein activated carbon is installed in the permeable cover (25).
4. The activated carbon type harmful gas filter tank with the sound attenuation structure according to claim 1, wherein both sides of the filter screen (12) are slidably connected with the inner walls of the sides of the two sliding grooves (10) away from each other, respectively.
5. The activated carbon type harmful gas filter tank with the sound attenuation structure according to claim 1, wherein the sides of the first magnet (9) and the second magnet (13) located on the same vertical axis, which are close to each other, are set to be N-poles, and the first magnet (9) and the second magnet (13) located on the same vertical axis are repelled by the two N-poles.
6. The activated carbon type harmful gas filter tank with the sound attenuation structure according to claim 1, wherein two embedded plates (22) are symmetrically arranged, and the embedded plates (22) are slidably connected with the inner walls of the corresponding connecting holes (19).
7. The activated carbon type harmful gas filter box with the sound attenuation structure according to claim 1, wherein a slide block is installed at the outer side of the second rotating shaft (18) in the rotating hole (15), an annular slide rail is arranged on the inner wall of the rotating hole (15), and the slide block is connected with the annular slide rail in a sliding manner.
8. The activated carbon type harmful gas filter box with the sound attenuation structure according to claim 1, wherein a mounting plate is welded on the top of the stepping motor (3), and the stepping motor (3) is fixed on the inner wall of the top of the mounting groove (2) through the mounting plate in a threaded manner.
CN201810056688.3A 2018-01-21 2018-01-21 Active carbon type harmful gas filter box with noise elimination structure Active CN108236817B (en)

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CN109046094B (en) * 2018-08-28 2020-10-30 大同新成新材料股份有限公司 Electrolyte preparation equipment and method
CN108993003A (en) * 2018-09-14 2018-12-14 郑州嘉晨化工科技有限公司 One kind being used for coal chemical industry oil product synthetic wastewater processing unit
CN109289418A (en) * 2018-10-31 2019-02-01 吴从周 A kind of air filtration mechanism of the air supply system of submersible decompression chamber

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