CN114904340B - Air filtering device of ventilation vertical pipe for shelter hospital - Google Patents
Air filtering device of ventilation vertical pipe for shelter hospital Download PDFInfo
- Publication number
- CN114904340B CN114904340B CN202210710416.7A CN202210710416A CN114904340B CN 114904340 B CN114904340 B CN 114904340B CN 202210710416 A CN202210710416 A CN 202210710416A CN 114904340 B CN114904340 B CN 114904340B
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- 238000001914 filtration Methods 0.000 title claims abstract description 45
- 238000009423 ventilation Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 40
- 238000005485 electric heating Methods 0.000 claims abstract description 13
- 230000001954 sterilising effect Effects 0.000 claims description 28
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 15
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 15
- 241001330002 Bambuseae Species 0.000 claims description 15
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 15
- 239000011425 bamboo Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 abstract description 10
- 244000000010 microbial pathogen Species 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 208000020029 respiratory tract infectious disease Diseases 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ventilation (AREA)
Abstract
The invention provides a ventilation vertical pipe gas filtering device for a shelter hospital, which comprises the following components: the device comprises an installation tube, wherein a high-efficiency filter device is installed in the installation tube, a primary filter device is installed in the installation tube and positioned on the upper side of the high-efficiency filter device, and an air outlet pipe is arranged at the top end of the installation tube; the electric heating jacket is arranged on the surface of the mounting tube; the dispersion tube, the dispersion tube set up in the bottom of installation tube, the inside of dispersion tube is provided with the flow distribution plate, the bottom of installation tube is provided with the flange, rain-proof cover is installed at the top of installation tube. According to the ventilation vertical pipe gas filtering device for the shelter hospital, provided by the invention, the gas can be filtered and sterilized at high temperature in sequence by arranging the high-efficiency filtering device, the primary filtering device and the electric heating jacket, so that the gas can be safely discharged, and the ventilation vertical pipe gas filtering device is simple in structure and convenient to use.
Description
Technical Field
The invention relates to the field of gas filtering devices, in particular to a ventilation vertical pipe gas filtering device for a shelter hospital.
Background
The negative pressure ward refers to that under a special device, the air pressure in the ward is lower than the air pressure outside the ward, so that the fresh air outside the ward can only flow into the ward from the circulation of the air, and the air polluted by a patient in the ward can not leak out, but is discharged to a fixed place in time through a special channel. Thus, the places outside the ward are not polluted, thereby reducing the chances of mass infection of medical staff, and the ward is most suitable for rescuing patients with respiratory tract infectious diseases.
For the control of infectious diseases, shelter hospitals for emergency use have emerged, but the wastewater discharged for such shelter hospitals contains pathogenic microorganisms, so that the entire drainage pipe system will be filled with aerosols containing pathogenic microorganisms;
At present, a vertical pipe gas treatment device which is specially designed for a square cabin hospital and is used for balancing gas pressure is lacking, and only a pipeline high-efficiency filter for a high-grade biosafety laboratory can be used for isolation treatment, so that the device is heavy in weight, high in cost and inconvenient to install on a roof.
Therefore, it is necessary to provide a ventilation riser gas filtration device for shelter hospitals to solve the above technical problems.
Disclosure of Invention
The invention provides a ventilation vertical pipe gas filtering device for a shelter hospital, which solves the problem that a drainage system specially designed for the shelter hospital is lack for drainage vertical pipes for drainage summarization and ventilation vertical pipe exhaust gas treatment for balancing air pressure.
In order to solve the technical problems, the ventilation vertical pipe gas filtering device for the shelter hospital provided by the invention comprises:
The device comprises an installation tube, wherein a high-efficiency filter device is installed in the installation tube, a primary filter device is installed in the installation tube and positioned on the upper side of the high-efficiency filter device, and an air outlet pipe is arranged at the top end of the installation tube;
The electric heating jacket is arranged on the surface of the mounting tube;
The dispersion pipe, the dispersion pipe set up in the bottom of installation tube, the inside of dispersion pipe is provided with the flow distribution plate.
Preferably, a flange is arranged at the bottom end of the mounting tube.
Preferably, a rain shield is arranged at the top of the installation tube.
Preferably, the sterilizing plate is symmetrically arranged in the mounting tube and positioned at the lower side of the efficient filtering device, the heating plate is arranged at one side of the sterilizing plate, which is close to the efficient filtering device, and a plurality of diversion holes are formed in the sterilizing plate.
Preferably, a guide plate is arranged on the upper side of the sterilization plate.
Preferably, the mounting tube comprises a bottom cylinder, a middle cylinder, an upper side cylinder and an end cover, wherein the sterilizing plate is positioned in the bottom cylinder, the high-efficiency filter device is positioned in the middle cylinder, and the primary filter device is positioned in the upper side cylinder.
Preferably, the two ends of the surfaces of the middle cylinder and the upper cylinder are respectively provided with an upper flange and a lower flange, the end cover is provided with an upper flange, the upper side of the bottom cylinder is provided with an upper flange, and the opposite sides of the upper flange and the lower flange are respectively adhered with a sealing ring.
Preferably, the telescopic arm is fixedly connected to the lower side flange, the telescopic arm comprises an outer cylinder, an inner arm and a piston block, the outer cylinder is fixed to the lower side flange, the piston block is slidably arranged on the outer cylinder, the bottom end of the inner arm is fixed to the piston block, and the top end of the inner arm sequentially penetrates through the outer cylinder and the upper side flange and is fixedly connected with the bottom of the lower side flange located on the upper side of the upper side flange.
Preferably, a first limiting hole and a second limiting hole are respectively formed in one side of the piston block and one side of the upper end of the inner arm, and a push rod is arranged at the top of the piston block and located on one side of the first limiting hole.
Preferably, one side of urceolus upper end is provided with the setting element, the setting element includes the installation section of thick bamboo, the inside of installation section of thick bamboo is provided with circular piece, one side of circular piece is provided with the card axle, the one end of card axle runs through and extends to the outside of installation section of thick bamboo, one side of card axle is provided with drives the piece, the inside of installation section of thick bamboo just is provided with the elastic component in one side of circular piece, the inside of installation section of thick bamboo is provided with the dog, set up jaggedly on the circular piece, one side fixedly connected with pull rod of circular piece.
Compared with the related art, the ventilation vertical pipe gas filtering device for the shelter hospital has the following beneficial effects:
The invention provides a ventilation vertical pipe gas filtering device for a shelter hospital, which can sequentially filter and isolate gas by arranging a high-efficiency filtering device, a primary filtering device and an electric heating jacket, ensures that a filter is dried by the electric heating jacket, and reduces ventilation resistance, so that the gas can be safely discharged, and the ventilation vertical pipe gas filtering device has a simple structure and is convenient to use.
Drawings
FIG. 1 is a schematic view of a first embodiment of a ventilation stand pipe gas filtration device for a shelter hospital provided by the invention;
FIG. 2 is a cross-sectional view of the whole of FIG. 1;
FIG. 3 is a schematic view of a second embodiment of a ventilation stand pipe gas filtration device for a shelter hospital provided by the invention;
Fig. 4 is a top view of the sterilizing board shown in fig. 3;
FIG. 5 is a schematic view of a third embodiment of a ventilation stand pipe gas filtration device for a shelter hospital provided by the invention;
FIG. 6 is a partial cross-sectional view of the device shown in FIG. 5;
Fig. 7 is an enlarged view of the portion a shown in fig. 6.
Reference numerals in the drawings:
1. The pipe is installed in the pipe-shaped pipe,
2. An electric heating jacket is arranged on the outer sleeve,
3. A dispersion tube, 31, a flow dividing plate,
4. A flange, a flange plate and a flange,
5. An air outlet pipe,
6. A rain shield cover is arranged on the inner side of the rain shield,
71. A high-efficiency filter device 72 and a primary filter device,
8. Sterilizing plate, 81, heating plate, 82, diversion holes,
9. The guide plate is provided with a plurality of guide grooves,
101. A bottom cylinder 102, a middle cylinder 103, an upper cylinder 104 and an end cover,
11. An upper flange, 12, a lower flange,
13. The telescopic arm is provided with a plurality of telescopic arms,
14. A threaded shaft, 15, a nut,
16. The positioning piece is provided with a plurality of positioning holes,
131. Outer cylinder, 132, inner arm, 133, piston block, 134, first limiting hole, 135, push rod, 136, second limiting hole,
161. The device comprises a mounting cylinder 162, a round block 163, a clamping shaft 164, an elastic piece 165, a stop block 166, a pull rod 167, a notch 168 and a driving block.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a ventilation vertical tube gas filtering device for a shelter hospital according to the present invention; fig. 2 is a cross-sectional view of the whole shown in fig. 1. Shelter hospital is with gaseous filter equipment of riser that ventilates includes:
The installation tube 1, the high-efficiency filter device 71 is installed in the installation tube 1, the primary filter device 72 is installed in the installation tube 1 and located on the upper side of the high-efficiency filter device 7, and the air outlet pipe 5 is arranged at the top end of the installation tube 1;
An electric heating jacket 2, wherein the electric heating jacket 2 is arranged on the surface of the mounting tube 1;
And a dispersion pipe 3, wherein the dispersion pipe 3 is arranged at the bottom end of the installation pipe 1, and a splitter plate 31 is arranged inside the dispersion pipe 3.
The constant-temperature electric heating wire is arranged in the electric heating jacket 2, and is powered by an external power supply or a storage battery;
the high-efficiency filter 71 and the primary filter 72 are installed inside the installation tube 1 through the installation tube, and the installation tube 1 is made of a hard material with good heat conduction performance.
The bottom of the mounting pipe 1 is provided with a flange.
The device is connected with the exhaust pipeline through flange matched bolts.
A rain shield 6 is arranged at the top of the installation pipe 1.
The rain shield 6 is a conical shield and is fixed on the mounting tube 1 through a connecting arm, the connecting arm is preferably in threaded connection with the mounting tube 1, an inner threaded tube is arranged on the mounting tube 1, a threaded shaft is arranged at the bottom end of the connecting arm, and the upper end of the connecting arm is rotationally connected with the rain shield 6.
The invention provides a ventilation vertical pipe gas filtering device for a shelter hospital, which has the following working principle:
The flange is connected with an air outlet pipeline of a drainage system designed by a shelter hospital;
after the gas enters, the gas is split through the splitter plate 31 in the dispersing pipe 3, and the split gas is filtered by the high-efficiency filter 71 and the primary filter 72 in sequence;
meanwhile, the electric heating jacket 2 heats the mounting tube 1, so that the drying of the high-efficiency filter device 71 and the primary filter device 72 can be ensured, and the condensation of water vapor is prevented, and the ventilation efficiency is influenced;
the gas after filtration and disinfection is discharged through an air outlet pipe 5;
wherein the rain shield 6 prevents rainwater from entering the interior of the installation tube 1 through the outlet tube 5.
Compared with the related art, the ventilation vertical pipe gas filtering device for the shelter hospital has the following beneficial effects:
through setting up high-efficient filter equipment 71, preliminary filtration device 72 and electrical heating overcoat 2, can effectively filter the aerosol that contains pathogenic microorganism in the gas in proper order to make gaseous safe emission, simple structure, convenient to use.
Second embodiment
Referring to fig. 3 and 4 in combination, another ventilation stand pipe gas filtering device for shelter hospitals according to a second embodiment of the present application is provided. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the second embodiment of the ventilation vertical pipe gas filtering device for a shelter hospital provided by the application is different in that the sterilization plates 8 are symmetrically installed inside the installation pipe 1 and below the high-efficiency filtering device 71, a heating plate 81 is installed on one side of the sterilization plates 8 close to the high-efficiency filtering device 71, and a plurality of diversion holes 82 are formed in the sterilization plates 8.
The upper side of the sterilizing plate 8 is provided with a guide plate 9.
The electrically heated jacket 2 is omitted in this embodiment;
Wherein the sterilizing plate 8 is a metal plate with good heat conduction performance, such as a stainless steel plate, a copper plate and the like;
wherein, the inside of the heating plate 81 is provided with an electric heating resistance wire, the sterilizing plate 8 is provided with a plurality of heating plates 81, and the adjacent heating plates 81 are connected in series and are powered by an external power supply or a storage battery;
Wherein the heating plate 81 can directly heat the sterilizing plate 8, the air flow directly acts on the sterilizing plate 8 after passing through the flow dividing plate 31, the sterilizing plate 8 is heated by the heating plate 81, so that the better air flow can be subjected to high-temperature sterilization treatment, and then the air flow better flows to the high-efficiency filtering device 71 through the guide plate 9 through the guide hole 82 for filtering treatment;
Improving the quality and effect of high-temperature disinfection.
Third embodiment
Referring to fig. 5,6 and 7 in combination, another ventilation stand pipe gas filtering device for a shelter hospital according to a third embodiment of the present application is provided. The third embodiment is merely a preferred manner of the first embodiment, and implementation of the third embodiment does not affect the implementation of the first embodiment alone.
Specifically, the second embodiment of the present application provides a ventilation vertical tube gas filtering device for a shelter hospital, which is different in that the installation tube 1 includes a bottom tube 101, a middle tube 102, an upper tube 103 and an end cover 104, wherein the sterilization plate 8 is located inside the bottom tube 101, the high-efficiency filtering device 71 is located inside the middle tube 102, and the primary filtering device 72 is located inside the upper tube 103.
Wherein the sterilizing plate 8, the high-efficiency filter device 71 and the primary filter device 72 are all detachably mounted.
The two ends of the surfaces of the middle cylinder 102 and the upper cylinder 103 are respectively provided with an upper flange 11 and a lower flange 12, the end cover 104 is provided with the upper flange 11, the upper side of the bottom cylinder 101 is provided with the upper flange 11, and the opposite sides of the upper flange 11 and the lower flange 12 are adhered with sealing rings.
And the sealing ring is arranged to ensure the tightness of the joint.
The telescopic arm 13 is fixedly connected to the lower flange 12, the telescopic arm 13 comprises an outer cylinder 131, an inner arm 132 and a piston block 133, the outer cylinder 131 is fixed to the lower flange 12, the piston block 133 is slidably arranged on the outer cylinder 131, the bottom end of the inner arm 132 is fixed to the piston block 133, and the top end of the inner arm sequentially penetrates through the outer cylinder 131 and the upper flange 11 and is fixedly connected with the bottom of the lower flange 12 located on the upper side of the upper flange 11.
The outer cylinder 131 in the telescopic arm 13 at the lowest side is fixed with the bottom cylinder 101 through a fixing lug, an assembly hole is formed in the upper flange 11, the aperture corresponds to the diameter of the inner arm 132, a threaded shaft 14 is arranged at the top of the inner arm 132 in the telescopic arm 13 at the highest side, and the threaded shaft 14 is connected with the upper flange 11 on the end cover 104 in a matched mode with a nut 15.
A first limiting hole 134 and a second limiting hole 136 are respectively formed in one side of the piston block 133 and one side of the upper end of the inner arm 132, and a push rod 135 is arranged at the top of the piston block 133 and located at one side of the first limiting hole 134.
The first limiting hole 134 and the second limiting hole 136 are the same as the clamping shaft 163 in size fit.
One side of urceolus 131 upper end is provided with setting element 16, setting element 16 includes mounting cylinder 161, the inside of mounting cylinder 161 is provided with circular piece 162, one side of circular piece 162 is provided with card axle 163, the one end of card axle 163 runs through and extends to the outside of mounting cylinder 161, one side of card axle 163 is provided with drives piece 168, the inside of mounting cylinder 161 and the one side that is located circular piece 162 are provided with elastic component 164, the inside of mounting cylinder 161 is provided with dog 165, the breach 167 has been seted up on the circular piece 162, one side fixedly connected with pull rod 166 of circular piece 162.
One end of the pull rod 166 is connected to a pull handle penetrating through the mounting cylinder 161 to facilitate pulling and rotating the pull rod 166, wherein the elastic member 164 is preferably a spring.
The stop 165 is smaller than the notch 167.
Wherein when the sterilizing board 8, the high-efficiency filtering device 71 or the primary filtering device 72 is required to be disassembled, replaced and overhauled;
Pulling the pull rod 166 in sequence to move the clamping shaft 163 out of the second limiting hole 136 on the inner arm 132 of the telescopic arm 13;
wherein the notch 167 on the circular block 162 corresponds to the stop block 165 on the inner wall of the mounting cylinder 161, then the pull rod 166 is pulled, the pull rod 166 pulls the circular block 162 to pass through the stop block 165 and compress the elastic piece 164, at this time, the pull rod 166 is rotated to drive the circular block 162 to rotate so that the stop block 165 is staggered with the notch 167, and the stop block is limited with the circular block 162, namely the stop block shaft 163 is limited; and rotates toward the push rod 135 side by an angle less than forty-five degrees;
sequentially operating the plurality of positioning members 16;
Then, the end cover 104 can be pulled upwards, the end cover 104 moves upwards to drive the inner arm 132 in the telescopic arm 13 at the uppermost side to move upwards, wherein when the push rod 135 on the piston block 133 and the driving block 168 on the clamping shaft 163 continue to pull upwards after acting, the push rod 135 pushes the driving block 168, the driving block 168 drives the circular block 162 to rotate, and when a notch on the circular block 162 corresponds to the stop block 165, the clamping shaft 163 is pushed to enter the first limiting hole 134 on the piston block 133 to limit the first limiting hole through the action of the elastic piece 164;
at this time, an operation cavity is formed between the end cover 104 and the upper side cylinder 103, so that the primary filter device can be installed or detached;
At this time, when the end cover 104 is pulled up again, the upper side cylinder 103 is driven to move up by the telescopic arm 13 which is extended to the maximum, and similarly, when the telescopic arm 13 corresponding to the middle cylinder 102 is extended to the maximum, the clamping shaft 163 correspondingly enters the first limiting hole 134 on the piston block 133 to limit the first limiting hole;
The upper cylinder 103 and the middle cylinder 102 form an operation space at this time, and the high-efficiency filter 71 can be mounted or dismounted;
The middle cylinder 102 is separated from the bottom cylinder 101 in the same way, and the sterilizing plate 8 is installed, disassembled or overhauled;
After the operation is finished, the pull rod 166 is pulled again in sequence, the clamping shaft 163 is pulled out of the first limiting hole 134 and is rotated to limit the first limiting hole, then the end cover 104, the upper side cylinder 103 and the middle cylinder 102 are sequentially retracted, and the positioning piece 16 is adjusted, so that the clamping shaft 163 is matched with the second limiting hole 136 to limit the second limiting hole, and the operation is simple and convenient;
through dividing into installation tube 1, end cover 104, upside section of thick bamboo 103, intermediate section of thick bamboo 102 and end section of thick bamboo 101, cooperation telescopic boom 13 and setting element 16 can pull up end cover 104, upside section of thick bamboo 103, intermediate section of thick bamboo 102 in proper order and expand, installs, dismantles and overhauls high-efficient filter 71, primary filter 72 and sterilizing plate 8, convenient operation.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. A ventilation riser gas filtration device for shelter hospitals, comprising:
The device comprises an installation tube, wherein a high-efficiency filter device is installed in the installation tube, a primary filter device is installed in the installation tube and positioned on the upper side of the high-efficiency filter device, and an air outlet pipe is arranged at the top end of the installation tube;
The electric heating jacket is arranged on the surface of the mounting tube;
The dispersing pipe is arranged at the bottom end of the mounting pipe, and a flow dividing plate is arranged in the dispersing pipe;
the sterilizing device is characterized in that sterilizing plates are symmetrically arranged in the mounting tube and positioned at the lower side of the high-efficiency filtering device, a heating plate is arranged at one side of the sterilizing plates, which is close to the high-efficiency filtering device, and a plurality of diversion holes are formed in the sterilizing plates;
the mounting tube comprises a bottom tube, a middle tube, an upper tube and an end cover, wherein the sterilizing plate is positioned in the bottom tube, the high-efficiency filter device is positioned in the middle tube, and the primary filter device is positioned in the upper tube;
the two ends of the surfaces of the middle cylinder and the upper cylinder are respectively provided with an upper flange and a lower flange, the end cover is provided with an upper flange, the upper side of the bottom cylinder is provided with an upper flange, and the opposite sides of the upper flange and the lower flange are respectively adhered with a sealing ring;
The telescopic arm comprises an outer cylinder, an inner arm and a piston block, the outer cylinder is fixed on the lower flange, the piston block is arranged on the outer cylinder in a sliding mode, the bottom end of the inner arm is fixed on the piston block, and the top end of the inner arm sequentially penetrates through the outer cylinder and the upper flange to be fixedly connected with the bottom of the lower flange positioned on the upper side of the upper flange;
A first limiting hole and a second limiting hole are respectively formed in one side of the piston block and one side of the upper end of the inner arm, and a push rod is arranged at the top of the piston block and positioned at one side of the first limiting hole;
One side of urceolus upper end is provided with the setting element, the setting element includes the installation section of thick bamboo, the inside of installation section of thick bamboo is provided with circular piece, one side of circular piece is provided with the card axle, the one end of card axle runs through and extends to the outside of installation section of thick bamboo, one side of card axle is provided with drives the piece, the inside of installation section of thick bamboo just is located one side of circular piece and is provided with the elastic component, the inside of installation section of thick bamboo is provided with the dog, set up jaggedly on the circular piece, one side fixedly connected with pull rod of circular piece.
2. The shelter hospital ventilation riser gas filtration device of claim 1, wherein the bottom end of the mounting tube is provided with a flange.
3. The shelter hospital ventilation riser gas filtration device of claim 1, wherein a rain shield is mounted on top of the mounting tube.
4. The ventilation stand pipe gas filtering apparatus for shelter hospitals of claim 1, wherein a guide plate is provided on the upper side of the sterilization plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710416.7A CN114904340B (en) | 2022-06-22 | 2022-06-22 | Air filtering device of ventilation vertical pipe for shelter hospital |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210710416.7A CN114904340B (en) | 2022-06-22 | 2022-06-22 | Air filtering device of ventilation vertical pipe for shelter hospital |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114904340A CN114904340A (en) | 2022-08-16 |
| CN114904340B true CN114904340B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210710416.7A Active CN114904340B (en) | 2022-06-22 | 2022-06-22 | Air filtering device of ventilation vertical pipe for shelter hospital |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114904340B (en) |
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