CN212746802U - Remove negative pressure device based on negative pressure ward - Google Patents
Remove negative pressure device based on negative pressure ward Download PDFInfo
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- CN212746802U CN212746802U CN202021368355.3U CN202021368355U CN212746802U CN 212746802 U CN212746802 U CN 212746802U CN 202021368355 U CN202021368355 U CN 202021368355U CN 212746802 U CN212746802 U CN 212746802U
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- air
- negative pressure
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- 238000001914 filtration Methods 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims description 21
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 3
- 210000003800 pharynx Anatomy 0.000 description 13
- 241000700605 Viruses Species 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 206010011224 Cough Diseases 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000007721 medicinal effect Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 206010041232 sneezing Diseases 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a mobile negative pressure device based on a negative pressure ward, which comprises an air exhaust host machine, wherein the air exhaust host machine is connected with an indoor extension machine for sucking indoor air through an air exhaust pipeline; the air exhaust host comprises a host shell, a fan support is welded at the bottom of the inner side of the host shell, and a centrifugal fan is fixedly connected to the fan support through bolts; an air inlet is formed in the lower end of one side of the main machine shell, and an air outlet I is formed in the upper end of one side of the main machine shell; the indoor extension comprises an extension body, the extension body comprises an extension shell, and an air valve switch and a standby air port are arranged on the upper side of the extension shell; the upper end of the front side of the extension shell is provided with an air inlet; the lower end of the rear side of the extension shell is provided with an air outlet II, the left side and the right side of the extension shell are both provided with standby air outlets, the rear side of the extension shell is connected with one end of an exhaust duct, and the other end of the exhaust duct is connected with an air inlet; an air valve I and a filtering device are arranged in the extension shell from top to bottom. The utility model discloses it is convenient fast to install, and is convenient for retrieve, repeatedly usable.
Description
Technical Field
The utility model relates to a negative pressure equipment technical field especially relates to a remove negative pressure equipment based on negative pressure ward.
Background
The novel coronavirus has extremely strong infectious capacity and is mainly transmitted by contact transmission, air transmission and the like. Because the disease is rapid in onset and strong in infection capacity, a negative pressure ward needs to be formed in a very short time in a hospital for collection and treatment, an exhaust system in a common ward needs to be modified, and the negative pressure ward is difficult to finish in a short time. After the epidemic situation is over, the reconstructed ward needs to be recovered, which causes the waste of equipment. The mobile negative pressure unit is a modularized negative pressure device, can be quickly installed and put into use, and does not damage the internal facilities of the ward without changing. The movable negative pressure unit can be recycled after the epidemic situation is over, and the waste of equipment can not be caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a remove negative pressure device based on negative pressure ward.
The utility model discloses a remove negative pressure device based on negative pressure ward is realized through following technical scheme:
a mobile negative pressure device based on a negative pressure ward comprises an air exhaust host, wherein the air exhaust host is connected with an indoor extension for sucking indoor air through an air exhaust pipeline;
the exhaust main machine comprises a main machine shell, a fan support is welded at the bottom of the inner side of the main machine shell, and a centrifugal fan is fixedly connected to the fan support through bolts; the lower end of one side of the main machine shell is provided with an air inlet, and the upper end of one side of the main machine shell is provided with an air outlet I for exhausting air of the centrifugal fan;
the indoor extension comprises an extension body, the extension body comprises an extension shell, and an air valve switch and a standby air port are arranged on the upper side of the extension shell; an air inlet is formed in the upper end of the front side of the extension shell; the lower end of the rear side of the extension shell is provided with an air outlet II, the left side and the right side of the extension shell are both provided with standby air outlets, the rear side of the extension shell is connected with one end of an air exhaust pipeline, and the other end of the air exhaust pipeline is connected with an air inlet of the air exhaust host; air valve I and filter equipment are equipped with respectively from top to bottom in the extension casing.
Further, indoor extension still includes collection system, collection system includes pharynx swab protection casing, pharynx swab protection casing is pegged graft and is had tuber pipe I, tuber pipe I is pegged graft through tuber pipe joint I and is had tuber pipe II, tuber pipe II is pegged graft through tuber pipe joint II and is had tuber pipe III, tuber pipe III can be dismantled through fastening nut and be connected with tuber pipe seat (height-adjustable), tuber pipe seat lower extreme with the extension body is pegged graft.
Further, the filtering device is arranged inside the extension body through a filter clamping groove inside the extension body; the filter device comprises a primary filter, a middle-effect filter is arranged below the primary filter, and a high-efficiency filter is arranged below the middle-effect filter.
Furthermore, a plurality of small holes which are uniformly distributed are formed in the inner side of the pharynx swab protective cover, and a transparent protective screen is arranged at the upper end of the pharynx swab protective cover.
Furthermore, an air pipe fixing piece is arranged on the air pipe seat and fixedly connected to the extension shell through a bolt.
Furthermore, the air pipe joint I consists of 2 mutually buckled elbow pipes and 1 fixed shaft, the 2 buckled elbow pipes can rotate around the fixed shaft for 360 degrees, and nuts are arranged at two ends of the fixed shaft; the air pipe joint II and the air pipe joint I have the same structure; and the air pipe joint I and the air pipe joint II are both made of aluminum alloy materials.
Furthermore, the inner side of the air outlet I is also provided with a non-return air valve for preventing air in the exhaust pipeline from flowing backwards indoors.
Further, an air valve II for controlling the opening and closing of the pharynx swab protective cover is further arranged on the air pipe I.
Further, the centrifugal fan is a single air inlet outer rotor motor direct-connection transmission centrifugal fan.
Further, the host shell comprises a side plate and a frame, the side plate is connected with the frame in a mode of sealing glue through screws, the side plate is formed by bending a cold-rolled steel plate with the thickness of 0.8mm, and the frame is made of an aluminum alloy section with the thickness of 2.0 mm.
Furthermore, the exhaust main machine is installed inside the suspended ceiling in a hoisting mode.
Furthermore, the non-return air valve is made of stainless steel.
Furthermore, the extension shell is made of stainless steel materials with the thickness of 0.8 mm.
Further, the filtering grade of the primary filter is G4(EN779), the filtering precision of the primary filter is not less than 5um, and the filtering efficiency of the primary filter is 90%.
Further, the filtration grade of the medium-efficiency filter is F9(EN779), the filtration precision of the medium-efficiency filter is 0.4um, and the filtration efficiency of the medium-efficiency filter is 95%.
Furthermore, the filtering grade of the high-efficiency filter is H13(EN18822), the filtering precision of the high-efficiency filter is more than or equal to 0.3um, and the filtering efficiency of the high-efficiency filter is 99.99%.
Further, the size of primary filter, medium efficiency filter and high efficiency filter all designs for the maximum size that indoor extension inside cross section can hold to improve the filtration area.
Furthermore, the air pipe I, the air pipe II and the air pipe III are all made of DN70mm aluminum alloy round pipes with the wall thickness of 2 mm.
Furthermore, the air valve I and the air valve II are both butterfly air valves, and the butterfly air valves are made of ABS materials.
Compared with the prior art, the utility model, following beneficial effect has:
1) the centrifugal fan of the utility model has small volume, low noise, high efficiency, large air quantity and high air pressure;
2) the indoor extension set is arranged at the head of a patient's bed, the patient generally releases viruses in modes of breathing, coughing, sneezing and the like, and the head of the patient is an area with higher virus concentration;
3) the indoor extension machine sucks indoor air from the bedside of a patient, the indoor air flows around the periphery of the patient bed to the bedside, when medical staff treat the patient, the air flows from the side direction of the doctor to the head of the patient, and the air flow arrangement can effectively protect the medical staff;
4) the collecting device can provide effective protection, and the position of the protective cover can be flexibly adjusted to adapt to the position of a patient on a hospital bed and the operation habit of medical staff; the transparent protective screen on the protective cover can form a physical barrier between a doctor and a patient, and the protective cover can absorb gas exhaled by the patient and cannot diffuse indoors;
5) after indoor air is purified by the primary air filter, the intermediate air filter and the high-efficiency air filter, the air entering the exhaust pipe is clean and nontoxic, indoor pollutants are controlled in the extension machine body, and the pollution to the exhaust pipeline and the exhaust main machine is reduced;
6) the air pipe assembly consisting of the air pipe, the air pipe joint and the air pipe seat is a support of the protective cover, can rotate up and down and left and right to adjust the position of the protective cover and is a channel of air flow, and air enters the extension machine body from the protective cover through the matched air pipe;
7) the main exhaust air pipe is connected with the main exhaust air pipe and the dry exhaust air pipe through the canvas soft joint, so that the vibration of the main exhaust air pipe is not transmitted to the exhaust air pipe.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of the overall installation of the device in embodiment 2 of the present invention;
fig. 2 is a schematic view of the external structure of the exhaust main unit according to embodiments 1 and 2 of the present invention;
fig. 3 is a schematic view of the external structure of the exhaust main unit according to embodiments 1 and 2 of the present invention;
fig. 4 is a schematic view of the internal structure of the exhaust main unit according to embodiments 1 and 2 of the present invention;
fig. 5 is a schematic view of an external structure of an indoor extension set in embodiment 2 of the present invention;
fig. 6 is a rear schematic view of an external structure of an indoor extension set in use state according to embodiment 2 of the present invention;
fig. 7 is a schematic view of an external structure of an indoor extension set in an idle state according to embodiment 2 of the present invention;
fig. 8 is a schematic view of the internal structure of the extension body according to embodiment 1 and embodiment 2 of the present invention;
fig. 9 is an enlarged schematic view of the structure of the air pipe joint according to embodiment 1 and embodiment 2 of the present invention;
wherein:
1-an exhaust main machine, 11-a main machine shell, 12-a fan support, 13-bolts I, 14-a centrifugal fan, 15-an air inlet, 16-an air outlet I, 17-an air check valve; 2-an exhaust duct; 3-indoor extension set, 31-collection device, 311-throat swab shield, 3111-small hole, 3112-protective screen, 312-air pipe I, 313-air pipe joint I, 3131-elbow pipe, 3132-fixed shaft, 3133-nut, 314-air pipe II, 315-air pipe joint II, 316-air pipe III, 317-fastening nut, 318-air pipe seat, 319-air pipe fixing piece, 32-extension set body, 321-extension set shell, 322-air valve switch, 323-standby air port, 324-air inlet, 325-air outlet II, 326-standby air outlet, 327-air valve I, 328-filter device, 3281-primary filter, 3282-intermediate filter, 3283-high-efficiency filter and 33-filter clamping groove; 4-bolt II; 5-air valve II.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The structure or operation principle of the present invention, which is not described in detail in the present application, belongs to the prior art and the common general knowledge in the field, and those skilled in the art should know.
Example 1
The embodiment provides a mobile negative pressure device based on a negative pressure ward, which comprises an air exhaust main machine 1, wherein the air exhaust main machine 1 is connected with an indoor extension 3 for sucking indoor air through an air exhaust pipeline 2; the exhaust main unit 1 comprises a main unit shell 11, a fan support 12 is welded at the bottom of the inner side of the main unit shell 11, and a centrifugal fan 14 is fixedly connected to the fan support 12 through a bolt I13; an air inlet 15 is formed in the lower end of one side of the main machine shell 11, and an air outlet I16 for exhausting air of the centrifugal fan 14 is formed in the upper end of one side of the main machine shell 11; the indoor extension 3 comprises an extension body 32, the extension body 32 comprises an extension shell 321, and an air valve switch 322 and a standby air port 323 are arranged on the upper side of the extension shell 321; the upper end of the front side of the extension shell 321 is provided with an air inlet 324; an air outlet II325 is formed in the lower end of the rear side of the extension shell 321, spare air outlets 326 are formed in the left side and the right side of the extension shell 321, one end of an exhaust duct 2 is connected to the rear side of the extension shell 321, and the other end of the exhaust duct 2 is connected with the air inlet 15; an air valve I327 and a filtering device 328 are respectively arranged inside the extension shell 321 from top to bottom.
Further, the filtering device 328 is disposed inside the extension body 32 through a filter slot 33 inside the extension body 32; the filtering device 328 comprises a primary filter 3281, a medium-efficiency filter 3282 is arranged below the primary filter 3281, and a high-efficiency filter 3283 is arranged below the medium-efficiency filter 3282.
Further, the inner side of the air outlet I16 is also provided with a check air valve 17 for preventing air in the exhaust duct from flowing backwards indoors, and the check air valve 17 is made of stainless steel.
Further, the centrifugal fan 14 is a single air inlet external rotor motor direct-connection transmission centrifugal fan.
Further, host computer casing 11 includes curb plate 111 and frame 112, curb plate 111 and frame 112 connected mode are for beating sealed screwed connection behind the fluid, curb plate 111 adopts 0.8 mm's cold-rolled steel sheet bending type, frame 112 adopts thickness 2.0 mm's aluminum alloy ex-trusions.
Further, the exhaust main engine 1 is installed inside the suspended ceiling in a hoisting mode.
Further, the extension housing 321 is an extension housing made of stainless steel with a thickness of 0.8 mm.
Further, the filtration grade of the primary filter 3281 is G4(EN779), the filtration precision of the primary filter 3281 is greater than or equal to 5um, and the filtration efficiency of the primary filter 3281 is 90%.
Further, the filtering grade of the medium-efficiency filter 3282 is F9(EN779), the filtering precision of the medium-efficiency filter 3282 is 0.4um, and the filtering efficiency of the medium-efficiency filter 3282 is 95%.
Furthermore, the filtering grade of the high-efficiency filter 3283 is H13(EN18822), the filtering precision of the high-efficiency filter 3283 is more than or equal to 0.3um, and the filtering efficiency of the high-efficiency filter 3283 is 99.99%.
Example 2
Please refer to fig. 1-9. The present embodiment provides a mobile negative pressure device based on negative pressure ward, and the present embodiment is different from embodiment 1 in that:
indoor extension 3 still includes collection system 31, collection system 31 includes pharynx swab protection casing 311, pharynx swab protection casing 311 pegs graft and has tuber pipe I312, tuber pipe I312 pegs graft through tuber pipe joint I313 and has tuber pipe II314, tuber pipe II314 pegs graft through tuber pipe joint II315 and has tuber pipe III316, tuber pipe III316 passes through fastening nut 317 and can dismantle to be connected with tuber pipe seat 318, tuber pipe seat 318 lower extreme with extension body 32 pegs graft.
Further, a plurality of small holes 3111 evenly distributed are arranged on the inner side of the pharynx swab protective cover 311, and a transparent protective screen 3112 is arranged at the upper end of the pharynx swab protective cover 311.
Further, an air pipe fixing piece 319 is arranged on the air pipe seat 318, and the air pipe fixing piece 319 is fixedly connected to the extension housing 321 through a bolt II 4.
Furthermore, the air duct joint I313 is composed of 2 buckled elbow ducts 3131 and 1 fixed shaft 3132, the 2 buckled elbow ducts 3131 can rotate around the fixed shaft 3132360 °, and nuts 3133 are disposed at two ends of the fixed shaft 3132; the air pipe joint II315 and the air pipe joint I313 are identical in structure, and the air pipe joint I313 and the air pipe joint II315 are both made of aluminum alloy materials.
Further, an air valve II5 for controlling the opening and closing of the pharyngeal swab shield 311 is also arranged on the air pipe I312.
Furthermore, the air pipe I312, the air pipe II314 and the air pipe III316 are all made of DN70mm aluminum alloy round pipes with the wall thickness of 2 mm.
Further, the air valve II5 is a butterfly air valve, and the butterfly air valve is made of ABS materials.
The working principle is as follows:
the air sucked into the ward by the air exhaust main machine 1 is exhausted out of the room through an air exhaust pipeline 2.
Air in the ward is sucked by the indoor extension 3, purified and filtered by the primary air filter 3281, the intermediate air filter 3282 and the high-efficiency air filter 3283 arranged in the extension body 32, then enters the exhaust main machine 1 through the matched exhaust pipeline 2, and is exhausted outdoors through the centrifugal fan 14 arranged in the exhaust main machine 1.
The indoor extension 3 is disposed at the head of a patient's head, which is a region with a high concentration of viruses and generally releases the viruses by breathing, coughing, sneezing, and the like. Indoor extension 3 draws indoor air from the patient's head of a bed, and indoor air flows to the head of a bed from patient's sick bed periphery, and when medical staff treated the patient, the air was flowed from doctor side direction patient head direction. Such an airflow arrangement is effective for protecting medical personnel.
Collecting a patient's pharyngeal swab is a high risk medical activity where medical personnel are working in the face of the patient's open mouth. The utility model discloses a pharynx swab protection casing 311 can provide effectual protection, and the position of protection casing can be adjusted in a flexible way, adapts to the position of patient on the sick bed and medical staff's operation custom. The transparent shield 3112 of the pharyngeal swab shield 311 may form a physical barrier between the doctor and the patient, while the pharyngeal swab shield 311 may absorb the patient's exhaled air and not diffuse into the room.
The opening degree of the air valve is adjustable in 3 grades, namely, the opening degree of the air valve is closed and is divided into 1 grade, 2 grade and 3 grade, the opening degree of the air valve in 1 grade is 30 percent, the opening degree of the air valve in 2 grade is 60 percent, and the opening degree of the air valve in 3 grade is 100 percent.
The utility model discloses an indoor extension has 2 kinds of mode, negative pressure mode and sampling mode promptly:
a negative pressure mode: under the negative pressure mode, the air valve II5 in the extension body 32 is opened, the air valve I327 of the pharynx swab protection cover 311 is closed, and the indoor air enters the extension through the air inlet, and enters the exhaust duct 2 after being filtered by the three-stage air filtering device 328. The air in the sickroom flows from the periphery of the sickbed to the direction of the bed head in the mode, and is suitable for daily medical activities.
And (3) sampling working mode: an air valve II5 in the extension body 32 closes an air valve I327 of the pharynx swab protective cover 311 and opens, and indoor air enters the extension body 32 through the pharynx swab protective cover 311, and enters the exhaust duct 2 after being filtered by three stages of air of the filtering device 328. In this mode, the air suction flow is smaller than that in the negative pressure mode, but the air flow rate is high, and the attraction is strong. Ensure that the gas exhaled by the patient does not leak during the sampling operation.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Claims (10)
1. A mobile negative pressure device based on a negative pressure ward is characterized by comprising an exhaust main machine (1), wherein the exhaust main machine (1) is connected with an exhaust pipeline (2) through a canvas soft joint, and the exhaust pipeline (2) is spliced with an indoor extension (3) for sucking indoor air;
the exhaust main machine (1) comprises a main machine shell (11), a fan support (12) is welded at the bottom of the inner side of the main machine shell (11), and a centrifugal fan (14) is fixedly connected onto the fan support (12) through a bolt I (13); an air inlet (15) is formed in the lower end of one side of the main machine shell (11), and an air outlet I (16) used for exhausting air of the centrifugal fan (14) is formed in the upper end of one side of the main machine shell (11);
the indoor extension (3) comprises an extension body (32), the extension body (32) comprises an extension shell (321), and an air valve switch (322) and a standby air port (323) are arranged on the upper side of the extension shell (321); the upper end of the front side of the extension shell (321) is provided with an air inlet (324); an air outlet II (325) is formed in the lower end of the rear side of the extension shell (321), standby air outlets (326) are formed in the left side and the right side of the extension shell (321), one end of an exhaust duct (2) is connected to the rear side of the extension shell (321), and the other end of the exhaust duct (2) is connected with the air inlet (15); an air valve I (327) and a filtering device (328) are respectively arranged inside the extension shell (321) from top to bottom.
2. The mobile negative pressure device based on the negative pressure ward of claim 1, wherein the indoor extension (3) further comprises a collection device (31), the collection device (31) comprises a throat swab protective cover (311), the throat swab protective cover (311) is plugged with an air pipe I (312), the air pipe I (312) is connected with an air pipe II (314) through an air pipe connector I (313), the air pipe II (314) is connected with an air pipe III (316) through an air pipe connector II (315), the air pipe III (316) is detachably connected with an air pipe seat (318) through a fastening nut (317), and the lower end of the air pipe seat (318) is plugged with the extension body (32).
3. A mobile negative pressure device based on a negative pressure ward as claimed in claim 1, characterized in that the filtering device (328) is arranged inside the extension body (32) through a filter slot (33) inside the extension body (32); the filter device (328) comprises a primary filter (3281), a medium-efficiency filter (3282) is arranged below the primary filter (3281), and a high-efficiency filter (3283) is arranged below the medium-efficiency filter (3282).
4. The mobile negative pressure device based on the negative pressure ward of claim 2, wherein the inner side of the throat swab protective cover (311) is provided with a plurality of small holes (3111) which are uniformly arranged, and the upper end of the throat swab protective cover (311) is provided with a transparent protective screen (3112).
5. The mobile negative pressure device based on the negative pressure ward of claim 2, wherein the lower end of the air duct base (318) is provided with an air duct fixing member (319), and the air duct fixing member (319) is fixedly connected to the extension housing (321) through a bolt II (4).
6. The mobile negative pressure device for the negative pressure ward based on claim 2, wherein the air duct joint I (313) is composed of 2 mutually buckled elbow ducts (3131) and 1 fixed shaft (3132), 2 buckled elbow ducts (3131) can rotate 360 ° around the fixed shaft (3132), and nuts (3133) are arranged at two ends of the fixed shaft (3132); the air pipe joint II (315) and the air pipe joint I (313) have the same structure.
7. The mobile negative pressure device based on the negative pressure ward of claim 1, wherein the air outlet I (16) is further provided with a check valve (17) inside for preventing the air in the exhaust duct from flowing backward into the room.
8. The mobile negative pressure device based on the negative pressure ward of claim 2, wherein the air duct I (312) is further provided with an air valve II (5) for controlling the opening and closing of the pharyngeal swab shield (311).
9. The mobile negative pressure device based on the negative pressure ward of claim 1, wherein the centrifugal fan (14) is a single air inlet external rotor motor direct drive centrifugal fan.
10. The mobile negative pressure device based on the negative pressure ward of claim 1, wherein the main housing (11) comprises a side plate (111) and a frame (112), the side plate (111) is fixedly connected with the frame (112), the side plate (111) is formed by bending a 0.8mm cold-rolled steel plate, and the frame (112) is formed by an aluminum alloy profile with a thickness of 2.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021368355.3U CN212746802U (en) | 2020-07-13 | 2020-07-13 | Remove negative pressure device based on negative pressure ward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021368355.3U CN212746802U (en) | 2020-07-13 | 2020-07-13 | Remove negative pressure device based on negative pressure ward |
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| Publication Number | Publication Date |
|---|---|
| CN212746802U true CN212746802U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021368355.3U Expired - Fee Related CN212746802U (en) | 2020-07-13 | 2020-07-13 | Remove negative pressure device based on negative pressure ward |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318016A (en) * | 2022-10-13 | 2022-11-11 | 天津市泰达医疗器械工贸有限公司 | Negative pressure fan filter equipment |
-
2020
- 2020-07-13 CN CN202021368355.3U patent/CN212746802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318016A (en) * | 2022-10-13 | 2022-11-11 | 天津市泰达医疗器械工贸有限公司 | Negative pressure fan filter equipment |
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Granted publication date: 20210319 |