CN112049471B - Negative pressure isolation system capable of being rapidly unfolded - Google Patents

Negative pressure isolation system capable of being rapidly unfolded Download PDF

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Publication number
CN112049471B
CN112049471B CN202010896058.4A CN202010896058A CN112049471B CN 112049471 B CN112049471 B CN 112049471B CN 202010896058 A CN202010896058 A CN 202010896058A CN 112049471 B CN112049471 B CN 112049471B
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China
Prior art keywords
isolation
negative pressure
air outlet
air
isolation system
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Application number
CN202010896058.4A
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Chinese (zh)
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CN112049471A (en
Inventor
梁春
张家友
王家美
周琳
牛冬军
蔡维乐
赵春棣
张婷
贺治青
汪沁沁
陈挺
陈慧
张欣栋
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Shanghai Changzheng Hospital
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Shanghai Changzheng Hospital
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Priority to CN202010896058.4A priority Critical patent/CN112049471B/en
Publication of CN112049471A publication Critical patent/CN112049471A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/125—Small buildings, arranged in other buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure

Abstract

The invention relates to a negative pressure isolation system capable of being rapidly unfolded, which comprises a soft main body membrane, an outer framework, an isolation bin bottom plate, an air inlet facility and an air outlet facility, wherein the soft main body membrane is arranged on the outer framework; the main body film is provided with a first isolation port for medical staff to enter and exit, a second isolation port for medical waste to leave and a positive patient to enter and exit the negative pressure isolation bin, and a two-way transfer window; the first isolation port, the second isolation port and the bidirectional transmission window are respectively provided with an isolation sheet; the outer surface of the main body membrane is also provided with a bonding body for fixing; the outer framework is a frame body formed by telescopic rods, and the telescopic rods are also provided with connectors for fixing with the main body membrane; the device is also provided with a monitoring head for detecting air pressure and a monitoring device for monitoring the open state of the negative pressure isolation system. The invention has the advantages that the negative pressure isolation system can be configured in the spaces with different sizes and environments, and the usability of the negative pressure isolation system in different environments is ensured.

Description

Negative pressure isolation system capable of being rapidly unfolded
Technical Field
The invention is suitable for the isolation monitoring and treatment of patients with positive or suspected respiratory infectious diseases, and can also be used for the collection and detection of clinical specimens with potential transmission risks; in particular to a negative pressure isolation system which can be rapidly unfolded.
Background
When infectious diseases, particularly respiratory diseases, occur, a negative pressure isolation system needs to be rapidly deployed at different places, and the system can be used for isolation treatment of positive or suspected patients and collection and monitoring of clinical samples with potential transmission risks. The prior art has deficiencies and short boards in the aspect of epidemic situation coping. Although the negative pressure ward can partially solve the above-mentioned needs of patient's treatment and isolation, often need to carry on the great change to the existing hospital structure, the expense is quite large, and if the situation of no epidemic after building up happens, then have idle and the problem that the daily maintenance expense is high. For this reason, a great number of manufacturers research and develop or release a rigid negative pressure board house based on a container structure, the board house can meet the requirements of a part of open-air fields, but for application scenes of closed or relatively closed environments, such as large ships, trains, office buildings, large shopping centers, exhibition centers and the like, the problem that the board house cannot be installed still exists, and a negative pressure isolation system which is relatively flexible, can be rapidly unfolded and is adjustable in height is lacked.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and solve the problem that the conventional negative pressure ward is difficult to be applied to narrow and irregular scenes such as large ships, trains and the like.
In order to achieve the aim, the invention provides a negative pressure isolation system capable of being rapidly unfolded, which comprises a soft main body membrane, an outer framework, an isolation bin bottom plate, an air inlet facility and an air outlet facility;
the main body film is provided with a first isolation port for medical staff to enter and exit, a second isolation port for medical waste to leave and a positive patient to enter and exit the negative pressure isolation bin, and a two-way transfer window; the first isolation port, the second isolation port and the bidirectional transfer window are respectively provided with an isolation sheet, and the edge of each isolation sheet is sealed with the main body film through a sealing structure; the outer surface of the main body membrane is also provided with a bonding body for fixing;
the outer framework is a frame body formed by telescopic rods, and the telescopic rods are also provided with connectors for fixing with the main body membrane;
the bottom end of the outer framework is fixed on the upper surface of the isolation bin bottom plate and is sealed with the edge of the main body membrane;
the air inlet facility is sequentially provided with an air inlet, a filtering device of the air inlet, a guide air duct and a downlink output port at the top of the main body membrane along the wind direction; the air outlet facility is an air outlet leading to the outside and a filtering device thereof, and an opening of the air outlet in the negative pressure isolation system is close to the isolation bin bottom plate; and the air inlet facility and the air outlet facility are respectively provided with a fan.
The monitoring head is also arranged for detecting air pressure; the monitoring heads are respectively arranged inside and outside the negative pressure isolation system;
the set value of the internal air pressure of the negative pressure isolation system is a0, the external atmospheric pressure is b, and the set negative pressure regulation value is c; when a0 is equal to b-c, the internal air pressure value of the negative pressure isolation system is a;
when a0 is more than a, adjusting the output of a fan in the air inlet facility to be higher than a conventional value;
when a0 is less than a, adjusting the output of the fan in the air outlet facility to be higher than the conventional value;
the air outlet device is characterized by also comprising a monitoring device for monitoring the open state of the negative pressure isolation system, and when the negative pressure isolation system is monitored to be in the open state, the output of the fan in the air outlet facility is locked to a conventional value, and the output of the fan in the air inlet facility is adjusted to be higher than the conventional value.
The isolation sheet body can be in the form of a door leaf, a window sash and the like. The filter device can be a combination of air filter devices such as HEPE (high efficiency particulate air) filtration, ultraviolet disinfection and photocatalysis degradation. The downlink output port guides the inlet air into the equipment.
a0 refers to the internal pressure of the negative pressure isolation system under the condition of constant use, at the moment, the whole negative pressure isolation system is closed and works normally, and the openings such as the first isolation port, the second isolation port, the bidirectional transmission window and the like are closed. The monitoring device can monitor the opening and closing states of the first isolation port, the second isolation port, the two-way transmission window and other openings.
Preferably, the air inlet or the guide air duct is further provided with an oxygen transfer port for outputting oxygen into the negative pressure isolation system, and the oxygen transfer port is arranged at an air inlet position of the fan.
The specific form of the oxygen delivery port can be an oxygen pipeline outlet or an oxygen generation device outlet, and the oxygen delivery port is arranged in the air inlet position direction of the fan, so that the regulation and control of the air pressure in the negative pressure isolation system can be facilitated.
Preferably, the downstream output port passes through a preformed hole at the top of the main body membrane and forms a seal with the edge of the preformed hole; and a wedge-shaped air nozzle is arranged in the downlink output port along the gas flow direction.
The wedge-shaped air nozzle is an air nozzle structure formed by arranging a bulge with a wedge-shaped section beside an air flow.
Preferably, the output end of the downlink output port is in a sieve pore structure; an air outlet small pipe I penetrates through the sieve mesh, and the air outlet small pipe I is in a small inlet and large outlet shape.
Preferably, a choke sheet for deflecting the airflow to the transverse direction is further annularly arranged outside the inlet edge of the air outlet small pipe I.
Part of the airflow is deflected into transverse airflow under the action of the choke sheet or the air outlet pipe structure, and moves towards each direction of the vertical plane of the downstream output port, so that the output is homogenized.
Preferably, the air outlet small pipe I is located in the central area of the output end of the downlink output port, the air outlet small pipe II is arranged in a sieve hole in the edge area of the output end of the downlink output port in a penetrating manner, and an inclined notch for guiding air outlet is arranged at an inlet of the air outlet small pipe II.
The chamfer cut face referred to here is directed towards the central region of the outlet end of the downstream outlet opening, in order to achieve a lateral air flow guidance.
Preferably, the downstream outlet is provided with an air flow guide deflector for guiding the cross air flow to the sieve mesh structure.
Preferably, the output end indoor section of the downlink output port or the output end outdoor section of the air outlet is in a cylindrical shape, and the side wall of the downlink output port is provided with a ventilation opening I along the circumferential direction; the cylinder shape is also rotatably and coaxially sleeved with a fan cover, and the side wall of the fan cover is provided with a ventilation opening II along the circumferential direction.
Through rotating the fan housing, can realize staggering and covering the change between vent I and the vent II to meticulously regulate and control the air intake and the amount of wind of air outlet, avoid the direct high-pressure transportation of air-out and air inlet simultaneously.
Preferably, the top side of the spacer is fixed with the top of the corresponding first isolation opening or the top of the corresponding second isolation opening, and the height of the spacer is greater than the height of the corresponding first isolation opening or the height of the corresponding second isolation opening; the two sides of the isolating piece are hermetically closed with two sides of a first isolating opening or two sides of a second isolating opening corresponding to the isolating piece through a zipper structure, guide rails extending along the height direction of the guide rails are further arranged near the two sides of the first isolating opening or the two sides of the second isolating opening, a power slider is arranged on the guide rails, and a zipper head of the zipper structure is connected with the power slider; the door comprises a door body and is characterized by further comprising two sets of movable pulley mechanisms, a door shaft is fixed on the bottom side of the isolation sheet, pulleys of the movable pulley mechanisms are arranged at two ends of the door shaft, a winch used for driving a rope force application end of the movable pulley mechanism is further fixed near the tops of two sides of the first isolation opening or two sides of the second isolation opening, and a rope fixing end of the movable pulley mechanism is arranged near the winch.
The height of the isolation sheet refers to the dimension in the extension direction of the isolation sheet, the height of the isolation opening refers to the dimension of the isolation opening on the plane, and the height direction of the isolation sheet is matched with the height direction of the isolation opening. The height of the isolation sheet is larger than that of the corresponding isolation opening, so that the isolation opening can be completely covered by the isolation sheet. The power slide block referred to herein is a slide block capable of realizing autonomous movement in a track, and the specific form thereof may be a form of matching a roller with a motor, a form of matching a screw structure with a motor, or the like. The two sets of movable pulley mechanisms are respectively positioned at two sides of the isolating opening and respectively drive two ends of the door shaft to realize the rolling and lifting of the door shaft. The two winches can be driven by the same power.
Preferably, a vertical fixing shaft is inserted into the isolation bin bottom plate, a fixing block is sleeved on the fixing shaft, and a buffering gasket for abutting against fixing equipment is arranged on the surface of the fixing block; the fixed block is also extended with a cross rod, the tail end of the cross rod is fixed with a vertical height adjusting rod, and the bottom of the height adjusting rod is provided with a large-area supporting foot disc.
The height adjusting rod referred to herein is a rod body which is rod-shaped and fixed to a certain length by means of adjustment in the form of a screw rod, a telescopic tube, or the like. When the length of the height adjusting rod is changed, the height adjusting rod drives the fixing block through the cross rod to realize the height positioning adjustment of the height adjusting rod.
The wind direction in the negative pressure isolation system flows through the main space in the system and various devices placed inside the main space from top to bottom, so that the personnel in the system can breathe, and finally the wind is discharged to the external environment after being subjected to harmless treatment by the wind outlet facility. The whole negative pressure isolation system is isolated from the inside and the outside by sealing the main body membrane and the isolation bin bottom plate, and the frame body formed by the outer framework pulls up the main body membrane from the outside to form the content space. When the negative pressure isolation system is limited by the size of the installation space, the side length of the frame body can be reduced by adjusting the telescopic rod; and then the main body film is folded and adjacent folded portions are bonded to each other or fixed to the outside through a bonding body without breaking the airtightness, thereby realizing installation with the size of the content space adjustable.
The monitoring head maintains the negative pressure in the equipment to be constant by monitoring the pressure in the equipment and the air pressure of the external environment and dynamically coordinating the air inlet and the air outlet. When personnel or materials enter and exit equipment, the monitoring device detects that the negative pressure isolation system is opened, the pressure state in the wind energy inlet adjusting equipment is increased, and pressure fluctuation caused by opening of parts such as doors and windows is reduced.
Generally, the air outlet volume in the negative pressure isolation system is larger than the air inlet volume, and people in the cabin need to wear protective clothing, so that oxygen deficiency is easily caused, and the mental fatigue of the people and the reduction of physical strength, attention and decision-making power are caused. The supply is carried out by externally connecting a clean oxygen source, and the requirement of personnel activities in the warehouse can be met.
The wedge-shaped air nozzle has the functions of accelerating the flow velocity of the filtered clean air on one hand and fully mixing the filtered air in the air inlet with the possibly additionally introduced oxygen on the other hand.
The wind direction can be uniformly and controllably transversely output through the design of the wind cover.
The bottom of the isolation sheet exceeds the isolation opening, and the air tightness can be better formed due to the difference of the air pressure inside and outside the isolation opening. The door shaft of the isolation sheet is pulled by the movable pulley mechanism to realize the rolling and opening of the isolation sheet from the bottom. And the two sides of the isolating sheet realize the relative air-tight sealing with the isolating opening by the zipper.
When the negative pressure isolation system needs to be opened, the power sliding blocks on two sides of the isolation opening are started at first, and the power sliding blocks move upwards along the guide rails, so that the zipper puller is driven to open the opening and closing zippers on two sides, and the zippers on two sides of the isolation piece are opened. Then the pulleys at the two ends of the door shaft are driven by the rope to rotate, so that the bottom of the isolating piece is curled and moved upwards. Finally, the opening of the isolation port of the negative pressure isolation system is realized. When the valve needs to be closed, the valve is reversely moved according to the operation.
The device is realized by inserting the fixed shaft on the bottom plate of the isolation bin, and the arrangement and adjustment of the fixed shaft can be arranged around each device in the negative pressure isolation system; then the fixed block is sleeved on the fixed shaft to enable the fixed block to lean against the device, and the fixed block realizes fixed positioning through the matching of the cross rod, the height adjusting rod and the supporting leg disc; after the device is matched and fixed, the device needing to be stabilized is fixed relatively rigidly, and the risks of displacement and inclination of equipment in the bin caused by the planar motion of the negative pressure bin are avoided.
The invention has the advantages that the negative pressure isolation system can be configured in the spaces with different sizes and environments, and the usability of the negative pressure isolation system in different environments is ensured.
Drawings
FIG. 1 is a schematic diagram of the combination of a main body membrane, an outer skeleton and an isolation bin bottom plate in the rapidly deployable negative pressure isolation system of the present invention;
FIG. 2 is a schematic diagram of a main membrane and its structure in a rapidly deployable negative pressure isolation system according to the present invention;
FIG. 3 is a cross-sectional view of a downstream outlet and its outlet air mating structure in the rapidly deployable negative pressure isolation system of the present invention;
FIG. 4 is a cross-sectional view of the downstream outlet and its hood assembly of the rapidly deployable negative pressure isolation system of the present invention;
FIG. 5 is a schematic view of the spacer and the fitting structure of the rapidly deployable negative pressure isolation system of the present invention;
FIG. 6 is a schematic diagram of a related structure of a fixture in the rapidly deployable negative pressure isolation system of the present invention;
wherein:
1-main body film 11-first isolation port 111-monitoring head
112-monitoring device 113-guide rail 1131-power slide block
114-zipper head 12-second isolation opening 13-bidirectional transfer window
14-spacer 141-door shaft 1411-pulley
1412-hoist 1413-rope 15-bonding body
16-air inlet 17-guide air duct 171-oxygen delivery port
172-blower 18-downstream outlet 181-wedge tuyere
182-air outlet pipe I1821-choke sheet 183-air outlet pipe II
184-airflow guiding deflector 185-air vent I186-fan housing
1861-vent II 19-air outlet 2-exoskeleton
21-connector 3-separation bin bottom plate 31-fixing shaft
311-fixed block 312-buffer pad 313-cross bar
314-height adjustment rod 315-arm brace disc
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
The negative pressure isolation system capable of being rapidly unfolded shown in fig. 1 to 2 comprises a soft main body film 1, an outer framework 2, an isolation bin bottom plate 3, an air inlet facility and an air outlet facility;
the main body membrane 1 is provided with a first isolation port 11 for medical staff to enter and exit, a second isolation port 12 for medical waste to leave and positive patients to enter and exit the negative pressure isolation bin, and a bidirectional transfer window 13; the first isolation port 11, the second isolation port 12 and the bidirectional transmission window 13 are all provided with an isolation sheet 14, and the edge of the isolation sheet 14 is sealed with the main body film 1 through a sealing structure; the outer surface of the main body film 1 is also provided with an adhesive body 15 for fixing;
the outer framework 2 is a frame body formed by telescopic rods, and the telescopic rods are also provided with connectors 21 used for being fixed with the main body film 1;
the bottom end of the outer framework 2 is fixed on the upper surface of the isolation bin bottom plate 3 and is sealed with the edge of the main body film 1;
the air inlet facility is sequentially provided with an air inlet 16 and a filtering device thereof, a guide air duct 17 and a downlink outlet 18 at the top of the main body membrane 1 along the wind direction; the air outlet facility is an air outlet 19 which is guided to the outside and a filtering device thereof, and the opening of the air outlet in the negative pressure isolation system is close to the isolation bin bottom plate 3; and the air inlet facility and the air outlet facility are also respectively provided with a fan 172.
A monitoring head 111 for detecting air pressure is also arranged; the monitoring heads 111 are respectively arranged inside and outside the negative pressure isolation system;
the set value of the internal air pressure of the negative pressure isolation system is a0, the external atmospheric pressure is b, and the set negative pressure regulation value is c; when a0 is equal to b-c, the internal air pressure value of the negative pressure isolation system is a;
when a0 is more than a, adjusting the output of the fan 172 in the air inlet facility to be higher than the conventional value;
when a0 is less than a, the output of the fan 172 in the air outlet facility is adjusted to be higher than the conventional value;
the monitoring device 112 is further arranged for monitoring the open state of the negative pressure isolation system, and when the open state of the negative pressure isolation system is monitored, the output of the fan 172 in the air outlet facility is locked to a normal value, and the output of the fan 172 in the air inlet facility is adjusted to be higher than the normal value.
According to fig. 3, the air inlet 16 (not shown, but those skilled in the art can understand this structure) or the guiding air duct 17 is further provided with an oxygen delivery port 171 for outputting oxygen into the negative pressure isolation system, and the oxygen delivery port 171 is arranged at the air inlet position of the fan 172. The downlink output port 18 penetrates through a prepared hole at the top of the main body membrane 1 and forms a seal with the edge of the prepared hole; a wedge-shaped air nozzle 181 is arranged in the downward outlet 18 along the gas flow direction. The output end of the downlink output port 18 is of a sieve pore structure; an air outlet small pipe I182 penetrates through the sieve holes, and the air outlet small pipe I182 is in a shape of a small inlet and a large outlet. A choke sheet 1821 for deflecting the airflow to be transverse is further annularly arranged outside the inlet edge of the air outlet small pipe I182. The air outlet small pipe I182 is located in the center area of the output end of the downlink output port 18, the air outlet small pipe II183 penetrates through the sieve holes in the edge area of the output end of the downlink output port 18, and an inclined notch for guiding air outlet is arranged at the inlet of the air outlet small pipe II 183. An airflow directing deflector 184 is provided within the downstream outlet 18 for directing a cross-flow of air towards the screen aperture configuration.
According to fig. 4, the output end inner section of the downstream output port 18 or the output end outer section of the air outlet (not shown, but understood by those skilled in the art) is cylindrical, and the side wall of the downstream output port is provided with a ventilation opening I185 along the circumferential direction; the cylindrical shape is also coaxially sleeved with a fan housing 186 in a rotatable manner, and the side wall of the fan housing 186 is provided with a ventilation opening II1861 along the circumferential direction.
According to fig. 5, the top side of the spacer 14 is fixed to the top of the corresponding first isolation opening 11 or the top of the corresponding second isolation opening 12 (not shown in the figures, but those skilled in the art can understand the structure), and the height of the spacer 14 is greater than the height of the corresponding first isolation opening 11 or the second isolation opening 12; the two sides of the isolation sheet 14 are hermetically closed with the two sides of the corresponding first isolation opening 11 or the two sides of the second isolation opening 12 through a zipper structure, a guide rail 113 extending along the height direction of the first isolation opening 11 or the second isolation opening 12 is further arranged near the two sides or the two sides of the first isolation opening 11 or the two sides of the second isolation opening 12, a power slider 1131 is arranged on the guide rail 113, and a zipper head 114 of the zipper structure is connected with the power slider 1131; the door further comprises two sets of movable pulley mechanisms, a door shaft 141 is fixed on the bottom side of the isolation sheet 14, pulleys 1411 of the movable pulley mechanisms are arranged at two ends of the door shaft 141, a winch 1412 for driving a rope force application end of the movable pulley mechanism is further fixed near the tops of two sides of the first isolation opening 11 or two sides of the second isolation opening 12, and the fixed end of a rope 1413 of the movable pulley mechanism is arranged near the winch 1412.
According to the figure 6, a vertical fixed shaft 31 is inserted into the bottom plate 3 of the isolation bin in the negative pressure isolation system, a fixed block 311 is sleeved on the fixed shaft 31, and a buffer pad 312 for abutting against a fixed device is arranged on the surface of the fixed block 311; a cross bar 313 also extends from the fixed block 311, a vertical height adjusting rod 314 is fixed at the tail end of the cross bar 313, and a large-area supporting foot disk 315 is arranged at the bottom of the height adjusting rod 314.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions, all of which are within the scope of the invention as defined by the appended claims.

Claims (6)

1. A negative pressure isolation system capable of being rapidly unfolded is characterized by comprising a soft main body membrane, an outer framework, an isolation bin bottom plate, an air inlet facility and an air outlet facility;
the main body film is provided with a first isolation port for medical staff to enter and exit, a second isolation port for medical waste to leave and a positive patient to enter and exit the negative pressure isolation bin, and a two-way transfer window; the first isolation port, the second isolation port and the bidirectional transfer window are respectively provided with an isolation sheet, and the edge of each isolation sheet is sealed with the main body film through a sealing structure; the outer surface of the main body membrane is also provided with a bonding body for fixing;
the outer framework is a frame body formed by telescopic rods, and the telescopic rods are also provided with connectors for fixing with the main body membrane;
the bottom end of the outer framework is fixed on the upper surface of the isolation bin bottom plate and is sealed with the edge of the main body membrane;
the air inlet facility is sequentially provided with an air inlet, a filtering device of the air inlet, a guide air duct and a downlink output port at the top of the main body membrane along the wind direction; the air outlet facility is an air outlet leading to the outside and a filtering device thereof, and an opening of the air outlet in the negative pressure isolation system is close to the isolation bin bottom plate; the air inlet facility and the air outlet facility are respectively provided with a fan;
the monitoring head is also arranged for detecting air pressure; the monitoring heads are respectively arranged inside and outside the negative pressure isolation system;
the set value of the internal air pressure of the negative pressure isolation system is a0, the external atmospheric pressure is b, and the set negative pressure regulation value is c; when a0 is equal to b-c, the internal air pressure value of the negative pressure isolation system is a;
when a0 is more than a, adjusting the output of a fan in the air inlet facility to be higher than a conventional value;
when a0 is less than a, adjusting the output of the fan in the air outlet facility to be higher than the conventional value;
the air outlet device is also provided with a monitoring device for monitoring the open state of the negative pressure isolation system, when the open state of the negative pressure isolation system is monitored, the output of the fan in the air outlet facility is locked to a conventional value, and the output of the fan in the air inlet facility is adjusted to be higher than the conventional value;
the output end of the downlink output port is of a sieve pore structure; an air outlet small pipe I penetrates through the sieve mesh, and the air outlet small pipe I is in a small inlet and large outlet shape;
a choke sheet for deflecting airflow to be transverse is further annularly arranged outside the inlet edge of the air outlet small pipe I;
the air outlet small pipe I is positioned in the central area of the output end of the downlink output port, the small air outlet pipe II penetrates through a sieve pore in the edge area of the output end of the downlink output port, and an inclined notch for guiding air outlet is arranged at the inlet of the small air outlet pipe II;
and an airflow guide deflection plate for guiding the transverse airflow to the sieve pore structure is arranged in the downward output port.
2. The negative pressure isolation system of claim 1, wherein the air inlet or the guide air duct further comprises an oxygen inlet for outputting oxygen into the negative pressure isolation system, and the oxygen inlet is disposed at an air inlet of the blower.
3. The negative pressure isolation system of claim 1, wherein the downstream output port passes through a preformed hole at the top of the body membrane and forms a seal with the edge of the preformed hole; and a wedge-shaped air nozzle is arranged in the downlink output port along the gas flow direction.
4. The negative pressure isolation system of claim 1, wherein the output end inner section of the downstream output port or the output end outer section of the air outlet is cylindrical, and a vent I is formed in the side wall of the downstream output port along the circumferential direction; the cylinder shape is also rotatably and coaxially sleeved with a fan cover, and the side wall of the fan cover is provided with a ventilation opening II along the circumferential direction.
5. The negative pressure isolation system of claim 1, wherein the top side of the isolation sheet is fixed with the top of the first or second isolation opening corresponding thereto, and the height of the isolation sheet is greater than the height of the first or second isolation opening corresponding thereto; the two sides of the isolating piece are hermetically closed with two sides of a first isolating opening or two sides of a second isolating opening corresponding to the isolating piece through a zipper structure, guide rails extending along the height direction of the guide rails are further arranged near the two sides of the first isolating opening or the two sides of the second isolating opening, a power slider is arranged on the guide rails, and a zipper head of the zipper structure is connected with the power slider; the door comprises a door body and is characterized by further comprising two sets of movable pulley mechanisms, a door shaft is fixed on the bottom side of the isolation sheet, pulleys of the movable pulley mechanisms are arranged at two ends of the door shaft, a winch used for driving a rope force application end of the movable pulley mechanism is further fixed near the tops of two sides of the first isolation opening or two sides of the second isolation opening, and a rope fixing end of the movable pulley mechanism is arranged near the winch.
6. The negative pressure isolation system of claim 1, wherein a vertical fixing shaft is inserted on the isolation bin bottom plate, a fixing block is sleeved on the fixing shaft, and a buffer gasket for abutting against a fixing device is arranged on the surface of the fixing block; the fixed block is also extended with a cross rod, the tail end of the cross rod is fixed with a vertical height adjusting rod, and the bottom of the height adjusting rod is provided with a large-area supporting foot disc.
CN202010896058.4A 2020-08-31 2020-08-31 Negative pressure isolation system capable of being rapidly unfolded Active CN112049471B (en)

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CN113445791B (en) * 2021-07-02 2023-02-28 郑州大学第一附属医院 Respiratory disease contactless isolation ward
CN115095187B (en) * 2022-03-24 2023-10-03 成都格力新晖医疗装备有限公司 Mobile laboratory and cabin mechanism thereof
CN114703960A (en) * 2022-05-19 2022-07-05 中国铁建重工集团股份有限公司 Assembled pressure-bearing building

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CA2285748C (en) * 1999-10-08 2010-05-25 Louis Brown Transportable collective protection system
CN102225032A (en) * 2011-04-28 2011-10-26 中国人民解放军军事医学科学院卫生装备研究所 Inflatable type movable negative pressure isolating room for implementing first aid to infectious disease patients
DE102017103468A1 (en) * 2017-02-21 2018-08-23 Mecora Medizintechnik Gmbh Room and method for making a room
CN107898563A (en) * 2017-12-25 2018-04-13 重庆东登科技有限公司 Negative pressure isolates transfer device
CN210717870U (en) * 2020-03-17 2020-06-09 上海律邦新能源科技有限公司 Modular medical isolation bin and medical mechanism

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