CN219624206U - Air film shelter ventilation device - Google Patents
Air film shelter ventilation device Download PDFInfo
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- CN219624206U CN219624206U CN202320693221.6U CN202320693221U CN219624206U CN 219624206 U CN219624206 U CN 219624206U CN 202320693221 U CN202320693221 U CN 202320693221U CN 219624206 U CN219624206 U CN 219624206U
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a ventilation device of a gas film shelter, and relates to the technical field of gas film shelter. The air-conditioning device comprises an air-conditioning device main body, a connecting pipe and an air-conditioning frame, wherein one end of the air-conditioning device main body is rotatably clamped with a first baffle plate and a second baffle plate from top to bottom, one end of the bottom side of the air-conditioning device main body is penetrated and clamped with a dustproof net, the other end of the air-conditioning device main body is provided with the connecting pipe, the outer peripheral surface of the connecting pipe is fixedly clamped with a sealed elastic air bag, one side of the air-conditioning device main body is provided with the air-conditioning frame, one end of the air-conditioning frame is clamped with an air quality detector, and one side of the air-conditioning frame is clamped with the connecting pipe. According to the ventilating device, the ventilating device main body, the connecting pipe and the ventilating frame are used for solving the problems that the ventilating device is difficult to be suitable for an elastic air film shelter, the sealing performance of the connecting part is poor, workers are required to be subjected to waterproof treatment in time in severe weather, and the labor intensity of the workers is increased.
Description
Technical Field
The utility model belongs to the technical field of air film shelter, and particularly relates to an air film shelter air interchanger.
Background
The gas film shelter is temporary nucleic acid detection equipment, the gas film shelter is mainly assembled by a plurality of closed tents, the inner side of the gas film shelter mainly comprises an amplification analysis area, a reagent preparation area, a sample treatment area and a sample receiving area, the gas film shelter has the advantages of short construction period, simple installation, low cost, convenient transportation and storage, repeated use, high space utilization rate during use and the like compared with the common shelter, the gas film shelter meets the market requirements better, and when the gas film shelter is used, particularly when a patient needs to be isolated and observed and treated in the gas film shelter, the inner side environment of the gas film shelter is usually closed to avoid cross infection caused by direct circulation of air inside and outside the shelter, but the gas film shelter is simultaneously closed for a long time to ensure the comfort of the environment in the gas film shelter, and the gas film shelter is usually required to be provided with a ventilation device to treat and replace the air inside the gas film shelter at regular time during use, but the gas film shelter still has the following defects in actual use:
1. most of the air interchanger is made of rigid materials, and when the air interchanger is installed in the air film shelter, the air interchanger is difficult to be directly installed on the surface of the air film shelter due to the fact that the air film shelter is made of elastic materials and has light dead weight, but is directly arranged outside the air film shelter and is connected with the air film shelter through a connecting pipe;
2. most of the air film shelter is used in an open air environment, when the weather is severe, an exhaust fan in the air interchanger can be damaged due to damp, so that the air interchanger cannot be used generally or manual operation of a worker is required to be carried out for waterproofing in rainy and snowy days, and the labor intensity of the worker is increased.
Disclosure of Invention
The utility model aims to provide an air film shelter air interchanger, which solves the problems that the air interchanger is difficult to be suitable for an air film shelter with elasticity, the sealing performance of a connecting part is poor, and workers are required to be subjected to waterproof treatment in time when the air interchanger is used in an open air environment in severe weather, so that the labor intensity of the workers is increased.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to an air film shelter air interchanger, which comprises an air interchanger main body, a connecting pipe and an air interchanger frame, wherein one end of the air interchanger main body is rotatably clamped with a first baffle plate and a second baffle plate from top to bottom, one sides of the first baffle plate and the second baffle plate are respectively clamped with a rotating motor, the first baffle plate and the second baffle plate can be driven to rotate and open in sunny days by the rotating motors, the first baffle plate and the second baffle plate can be rotated and closed in rainy and snowy days, the inside of the air interchanger main body is prevented from being damaged by damp, manual operation of staff is not needed, the using convenience is improved, the labor intensity of staff is reduced, one end of the bottom side of the air interchanger main body is penetrated and clamped with a dust screen, the air interchanger main body can be used for ventilating the air film shelter through the dust screen positioned at the lower side of the air interchanger main body in rainy and snowy days, and difficult air interchange caused by severe environment is avoided, and rainwater and the like are difficult to enter the main body of the air interchanger through the dust screen positioned at the lower side of the main body of the air interchanger, so that damage caused by damp is avoided, maintenance cost is reduced, the other end of the main body of the air interchanger is provided with a connecting pipe, the outer peripheral surface of the connecting pipe is fixedly clamped with a sealed elastic air bag, when the main body of the air interchanger, the air interchanger frame and the air film shelter are connected, the connecting pipe is inserted into a vent pipe of the air film shelter and the sealed elastic air bag is expanded, the vent pipe is elastically stretched until the vent pipe is tightly attached to the outer peripheral surface of the sealed elastic air bag, the operation is simple and convenient, the tightness of the connecting part is greatly improved, one side of the main body of the air interchanger is provided with the air interchanger frame, one side of the air interchanger frame is clamped with an air quality detector, the air quality in the air film shelter can be monitored through the air quality detector, and carbon dioxide in air is monitored, the ratio of oxygen to when the carbon dioxide content is too high, the oxygen content is too low to the suggestion to the staff, the staff of being convenient for in time take a breath, guarantee the comfortable in the air film shelter, breather main part and the inboard filter core that all can set up of frame of taking a breath filter, filter the air that gets into in the air film shelter and follow air exhaust in the air film shelter, avoid cross infection.
Further, a humidity sensor is fixedly clamped at one end of the upper side of the air interchanger main body, the second baffle is rotationally attached to the upper side of the dust screen, a rain shielding frame is fixedly welded at one end of the bottom side of the air interchanger main body, and the rain shielding frame is positioned at one side of the first baffle of the air interchanger main body;
the inside control assembly that is provided with of breather main part can monitor ambient humidity through humidity transducer, when raining or snowing suddenly, humidity transducer can be with data transmission to control assembly, it is closed to rotate through control assembly control first baffle and second baffle, it is inboard to avoid the rainwater to get into the breather main part under the wind-force effect, and can open dust screen one side when the second baffle upwards rotates, make air can get into the breather main part through the dust screen and take a breath, rainwater etc. are difficult to get into the breather main part through the dust screen that is located breather main part downside, guarantee to avoid the damage of receiving damp in the rain and snow weather also can be operated, the frame of keeping off the rain simultaneously can further keep off the rain, avoid the rainwater to get into the breather main part through the dust screen under the wind-force effect, and do not need staff's manual operation, reduce staff's intensity of labour.
Further, an exhaust fan is fixedly clamped at the inner side of the ventilation device main body, the dust screen is positioned between the first baffle plate and the exhaust fan, a support frame is fixedly welded at the bottom side of the ventilation device main body, and universal wheels are rotatably clamped at the periphery of the bottom end of the support frame;
the ventilation device has the advantages that the ventilation device can drive the air to flow through the air exhauster, ventilation can be performed on the inner side and the outer side of the air film shelter, the ventilation device body can be driven to move through the universal wheels, transportation and storage are facilitated, and labor intensity of workers is reduced.
Further, a photovoltaic plate is fixedly clamped on the upper side of the air interchanger main body, an access door is rotatably clamped on one side of the air interchanger main body, and the access door is positioned between the exhaust fan and the connecting pipe;
can turn into solar energy and supply the breather main part to use through photovoltaic board, reduce the charges of electricity expense, improve energy utilization, when needing periodic maintenance or changing the filter core, rotate and open the access door and be convenient for the staff get into the breather main part inboard fast.
Further, one end of the sealing elastic air bag is connected with an air extraction component in a penetrating and clamping manner, the air extraction component is connected and fixed with the outer peripheral surface of a connecting pipe in a clamping manner, a vent hole is formed in the upper side of the air extraction component, the vent hole is communicated with the inner side of the sealing elastic air bag in a penetrating manner, an elastic sealing ring is connected and fixed with the outer peripheral surface of the sealing elastic air bag in a clamping manner, one end of the connecting pipe is connected with a corrugated pipe in a penetrating and clamping manner, the other end of the corrugated pipe of one connecting pipe is connected with one side of the main body of the air interchanger in a clamping manner, and the corrugated pipe of the other connecting pipe is connected with one side of the air interchanger in a clamping manner;
when carrying out the connection of breather main part, take a breath frame and air film shelter, peg graft the connecting pipe in the breather pipe inboard of air film shelter, aerify sealed elasticity gasbag inboard through the subassembly of bleeding, can make its inflation and sticis in the breather pipe inboard of air film shelter, seal the breather pipe, can further improve sealed effect through elastic seal circle, guarantee the leakproofness of connection, easy operation improves the convenience of use.
Further, a limiting plate is fixedly welded on the inner side of the ventilation frame, a reset spring is clamped on one side of the limiting plate, a rotating plate is clamped on the inner side of the ventilation frame, one end of the reset spring is clamped on the lower end of one side of the rotating plate, and a display is fixedly clamped on one side of the air quality detector;
can restrict the pivoted angle of rotor plate through the limiting plate, make the rotor plate when not receiving air pressure through reset spring hug closely in limiting plate one side, guaranteed the air film shelter inboard leakproofness when not needing to take a breath, can monitor the air quality in the air film shelter through air quality detector to when the oxygen content drops to the threshold in the air, through the display suggestion to the staff, be convenient for in time take a breath.
The utility model has the following beneficial effects:
1. the utility model solves the problems that most of the air interchanger is made of rigid materials, when the air interchanger is installed in the air film shelter, the air interchanger is made of elastic materials and has lighter dead weight, and the air interchanger is usually difficult to be directly installed on the surface of the air film shelter, but is directly arranged outside the air film shelter and is connected with the air film shelter through the connecting pipe.
2. According to the utility model, the ventilation device main body is arranged, so that the problems that the air film shelter is mostly used in an open air environment, when weather is severe, an exhaust fan in the ventilation device is possibly damaged due to damp, therefore, the ventilation device cannot be used generally or manual operation is required by staff to conduct water prevention in rainy and snowy days, the labor intensity of the staff is increased, when the user suddenly rains or snows, the humidity sensor monitors the humidity change and controls the first baffle plate and the second baffle plate to rotate and close through the ventilation device protective body, and meanwhile, one side of the dust screen is opened, so that air can enter the inner side of the ventilation device main body through the dust screen, rainwater and the like are difficult to enter the inner side of the ventilation device main body through the dust screen positioned at the bottom side of the ventilation device main body, damp damage of the exhaust fan and the like is avoided, the maintenance cost is reduced, manual operation is not required, and the labor intensity of the staff is reduced.
Drawings
FIG. 1 is a structural effect diagram of the present utility model;
FIG. 2 is a block diagram of a ventilator body and a connecting tube according to the present utility model;
FIG. 3 is a bottom view of the ventilation device body and connecting tube of the present utility model;
FIG. 4 is a top view of the ventilation device body and connecting tube of the present utility model;
FIG. 5 is a block diagram of a ventilation frame of the present utility model;
fig. 6 is a cross-sectional view of the ventilation frame of the present utility model.
Reference numerals:
1. a ventilation device main body; 101. a first baffle; 102. a second baffle; 103. a humidity sensor; 104. a support frame; 105. a photovoltaic panel; 106. a universal wheel; 107. an access door; 108. an exhaust fan; 109. a dust screen; 110. a rain shield; 2. a connecting pipe; 201. sealing the elastic air bag; 202. an air extraction assembly; 203. an elastic sealing ring; 204. a vent hole; 205. a bellows; 3. a ventilation frame; 301. an air quality detector; 302. a display; 303. a limiting plate; 304. a rotating plate; 305. and a return spring.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-6, the air film shelter ventilator of the present utility model comprises a ventilator body 1, a connecting pipe 2 and a ventilator frame 3, wherein one end of the ventilator body 1 is rotatably clamped with a first baffle plate 101 and a second baffle plate 102 from top to bottom, one sides of the first baffle plate 101 and the second baffle plate 102 are respectively clamped with a rotating motor, the rotating motors drive the first baffle plate 101 and the second baffle plate 102 to rotate downwards to be horizontal in sunny days, the rotating motors rotate to be closed in rainy and snowy days, one end of the bottom side of the ventilator body 1 is penetrated and clamped with a dust screen 109, one side of the dust screen 109 is opened along with the upward rotation of the second baffle plate 102 in rainy and snowy days, the air film shelter is ventilated by the dust screen 109 positioned at the lower side of the ventilator body 1, the other end of the ventilator body 1 is provided with the connecting pipe 2, the outer peripheral surface of the connecting pipe 2 is fixedly clamped with a sealing elastic air bag 201, when the air interchanger main body 1, the air interchanger frame 3 and the air film shelter are connected, the connecting pipe 2 is inserted into the vent pipe of the air film shelter, the inner side of the sealed elastic air bag 201 is inflated through the air extraction component 202, the vent pipe is elastically stretched until the vent pipe is tightly attached to the outer peripheral surface of the sealed elastic air bag 201, the sealed connection is completed, the air interchanger main body 1 is provided with the air interchanger frame 3, the air quality detector 301 is clamped on one side of the air interchanger frame 3, the connecting pipe 2 is clamped on one side of the air interchanger frame 3, the air quality in the air film shelter is monitored through the air quality detector 301, the ratio of carbon dioxide and oxygen in the air is monitored, and when the carbon dioxide content is too high and the oxygen content is too low, the display 302 is used for prompting staff, so that the staff can timely perform air interchange, the inner sides of the air interchanger main body 1 and the air interchanger frame 3 can be provided with filter elements, and filtering the air entering the air film shelter and the air discharged from the air film shelter.
As shown in fig. 1-4, further, a humidity sensor 103 is clamped and fixed at one end of the upper side of the ventilation device main body 1, the second baffle 102 is rotationally attached to the upper side of a dust screen 109, a rain shielding frame 110 is welded and fixed at one end of the bottom side of the ventilation device main body 1, the rain shielding frame 110 is positioned at one side of the first baffle 101 of the ventilation device main body 1, an exhaust fan 108 is clamped and fixed at the inner side of the ventilation device main body 1, the dust screen 109 is positioned between the first baffle 101 and the exhaust fan 108, a supporting frame 104 is welded and fixed at the bottom side of the ventilation device main body 1, universal wheels 106 are rotationally clamped and connected at the periphery of the bottom end of the supporting frame 104, a photovoltaic panel 105 is clamped and fixed at the upper side of the ventilation device main body 1, an access door 107 is rotationally clamped and connected at one side of the ventilation device main body 1, and the access door 107 is positioned between the exhaust fan 108 and a connecting pipe 2;
staff removes breather main part 1 to the position that needs to use through universal wheel 106 to make breather main part 1 and air film shelter connect through connecting pipe 2, during the use air exhauster 108 is taken out external air to breather main part 1 in, and filter the air through the filter core in the breather main part 1, finally take out the air after the filtration to the air film shelter in, breather main part 1 inboard is provided with control assembly, can monitor ambient humidity through humidity sensor 103, when the humidity that causes humidity sensor 103 to monitor is greater than the threshold value suddenly rains or snows, humidity sensor 103 is with data transmission to control assembly, upwards rotate through control assembly control first baffle 101 and second baffle 102 and close, and open dust screen 109 one side simultaneously, make the air get into breather main part 1 through dust screen 109 and take a breath, when needs periodic maintenance or change the filter core, rotate and open access door 107 the staff of being convenient for get into breather main part 1 inboard fast.
As shown in fig. 1 and 4, one end of the sealed elastic air bag 201 is connected with an air extraction assembly 202 in a penetrating manner, the air extraction assembly 202 is connected with the outer circumferential surface of the connecting pipe 2 in a clamping manner, a vent hole 204 is formed in the upper side of the air extraction assembly 202, the vent hole 204 is communicated with the inner side of the sealed elastic air bag 201 in a penetrating manner, an elastic sealing ring 203 is connected with the outer circumferential surface of the sealed elastic air bag 201 in a clamping manner, one end of the connecting pipe 2 is connected with a corrugated pipe 205 in a penetrating manner, the other end of the corrugated pipe 205 of one connecting pipe 2 is connected with one side of the main body 1 of the ventilation device in a clamping manner, and the corrugated pipe 205 of the other connecting pipe 2 is connected with one side of the ventilation frame 3 in a clamping manner;
when the ventilation device main body 1, the ventilation frame 3 and the air film shelter are connected, the connecting pipe 2 is inserted into the inner side of the ventilation pipe of the air film shelter, the air extraction assembly 202 pumps outside air to the inner side of the sealed elastic air bag 201 through the ventilation hole 204 to expand the sealed elastic air bag 201, the sealed elastic air bag 201 and the elastic sealing ring 203 are tightly pressed into the inner side of the ventilation pipe of the air film shelter, and the ventilation pipe is sealed.
As shown in fig. 1, 5 and 6, a limiting plate 303 is welded and fixed on the inner side of the ventilation frame 3, a return spring 305 is clamped on one side of the limiting plate 303, a rotating plate 304 is clamped on the inner side of the ventilation frame 3, one end of the return spring 305 is clamped on the lower end of one side of the rotating plate 304, and a display 302 is clamped and fixed on one side of the air quality detector 301;
the air quality in the air film shelter can be monitored through the air quality detector 301, and when the oxygen content in the air is reduced to a threshold value, the air is prompted to the staff through the display 302, so that ventilation is convenient to conduct timely, when ventilation is needed, the air is pumped into the air film shelter through the ventilation device main body 1 to enable the air pressure in the air film shelter to be enhanced, the air is enabled to squeeze the rotating plate 304, the rotating plate 304 is enabled to rotate to filter and discharge turbid air in the air film shelter through the filter element, and after ventilation is completed, the rotating plate 304 is enabled to reset rapidly through the reset spring 305.
One specific application of this embodiment is: the ventilation device main body 1 is moved to a proper position through the universal wheels 106, the ventilation frame 3 is placed in the air film shelter, the two connecting pipes 2 are inserted into the inner side of the ventilation pipe of the air film shelter, the air extraction assembly 202 pumps outside air into the inner side of the sealed elastic air bag 201 through the ventilation holes 204 to expand the sealed elastic air bag 201 and the elastic sealing ring 203 to be tightly pressed on the inner side of the ventilation pipe of the air film shelter, the ventilation pipe is sealed, the ventilation device main body 1 is started, the air exhauster 108 pumps outside air into the ventilation device main body 1 and filters air through the filter element in the ventilation device main body 1, finally the filtered air is pumped into the air film shelter, the air pressure in the air film shelter is enhanced, the air is extruded to the rotating plate 304, the air in the air film shelter is filtered and discharged through the filter element by the rotating plate 304, after ventilation is completed, the return spring 305 enables the rotating plate 304 to reset rapidly, the humidity sensor 103 can monitor the ambient humidity, the first baffle plate 101 and the second baffle plate 102 rotate downwards to be opened when weather is fine, solar energy is converted into electric energy through the photovoltaic plate 105 to be used by the ventilation device main body 1, when sudden rain or snow causes the humidity monitored by the humidity sensor 103 to be greater than a threshold value, the humidity sensor 103 transmits data to the control assembly, the control assembly controls the first baffle plate 101 and the second baffle plate 102 to rotate upwards to be closed, and meanwhile, one side of the dust screen 109 is opened, so that air can enter the ventilation device main body 1 through the dust screen 109 to be ventilated, and when regular maintenance or replacement of a filter element is needed, the maintenance door 107 is rotated to be opened, so that workers can enter the inner side of the ventilation device main body 1 rapidly.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (6)
1. The utility model provides a air film shelter breather, includes breather main part (1), connecting pipe (2) and ventilate frame (3), its characterized in that: the air interchanger comprises an air interchanger body (1), wherein one end of the air interchanger body (1) is rotatably clamped with a first baffle (101) and a second baffle (102) from top to bottom, one end of the bottom side of the air interchanger body (1) is penetrated and clamped with a dust screen (109), the other end of the air interchanger body (1) is provided with a connecting pipe (2), the outer peripheral surface of the connecting pipe (2) is fixedly clamped with a sealing elastic air bag (201), one side of the air interchanger body (1) is provided with an air interchanger frame (3), one end of the air interchanger frame (3) is clamped with an air quality detector (301), and one side of the air interchanger frame (3) is clamped with the connecting pipe (2).
2. The air film shelter ventilator of claim 1, wherein: the air interchanger is characterized in that a humidity sensor (103) is fixedly clamped at one end of the upper side of the air interchanger body (1), the second baffle (102) is rotationally attached to the upper side of the dustproof net (109), a rain shielding frame (110) is fixedly welded at one end of the bottom side of the air interchanger body (1), and the rain shielding frame (110) is located on one side of the first baffle (101) of the air interchanger body (1).
3. The air film shelter ventilator of claim 1, wherein: the air interchanger is characterized in that an exhaust fan (108) is fixedly clamped on the inner side of the air interchanger body (1), the dust screen (109) is positioned between the first baffle plate (101) and the exhaust fan (108), a supporting frame (104) is fixedly welded on the bottom side of the air interchanger body (1), and universal wheels (106) are clamped on the periphery of the bottom end of the supporting frame (104).
4. A gas film shelter ventilator as claimed in claim 3 in which: the photovoltaic panel (105) is fixedly clamped on the upper side of the ventilation device main body (1), the access door (107) is rotatably clamped on one side of the ventilation device main body (1), and the access door (107) is located between the exhaust fan (108) and the connecting pipe (2).
5. The air film shelter ventilator of claim 1, wherein: the sealing elastic air bag is characterized in that one end of the sealing elastic air bag (201) is connected with an air extraction assembly (202) in a penetrating mode, the air extraction assembly (202) is connected with the outer peripheral surface of the connecting pipe (2) in a clamping mode, an air vent (204) is formed in the upper side of the air extraction assembly (202), the air vent (204) is connected with the inner side of the sealing elastic air bag (201) in a penetrating mode, an elastic sealing ring (203) is fixedly connected with the outer peripheral surface of the sealing elastic air bag (201) in a clamping mode, one end of the connecting pipe (2) is connected with a corrugated pipe (205) in a penetrating mode, the other end of the corrugated pipe (205) of the connecting pipe (2) is connected with one side of the ventilating device body (1) in a clamping mode, and the other corrugated pipe (205) of the connecting pipe (2) is connected with one side of the ventilating frame (3) in a clamping mode.
6. The air film shelter ventilator of claim 1, wherein: the air quality detector is characterized in that a limiting plate (303) is fixedly welded on the inner side of the air exchange frame (3), a reset spring (305) is clamped on one side of the limiting plate (303), a rotating plate (304) is clamped on the inner side of the air exchange frame (3), one end of the reset spring (305) is clamped on the lower end of one side of the rotating plate (304), and a display (302) is fixedly clamped on one side of the air quality detector (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320693221.6U CN219624206U (en) | 2023-04-02 | 2023-04-02 | Air film shelter ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320693221.6U CN219624206U (en) | 2023-04-02 | 2023-04-02 | Air film shelter ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219624206U true CN219624206U (en) | 2023-09-01 |
Family
ID=87774465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320693221.6U Active CN219624206U (en) | 2023-04-02 | 2023-04-02 | Air film shelter ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219624206U (en) |
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2023
- 2023-04-02 CN CN202320693221.6U patent/CN219624206U/en active Active
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