JP7008390B1 - Pneumatic negative pressure chamber device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an pneumatic negative pressure chamber device which can be easily and smoothly installed only by injecting air and inflating, and which can form a negative pressure chamber in a good negative pressure state with thorough sealing. .. SOLUTION: An air injection type structure 14 composed of one or a plurality of hollow columnar bodies 12A to 12D and self-supporting by injecting air into the hollow of the hollow columnar bodies 12A to 12D, and the self-supporting air injection type. A flexible sheet 16 whose shape is held by the structure 14 to form a closed space 22 and a negative pressure device for putting the closed space 22 into a negative pressure state are provided, and air is supplied to the air injection type structure 14. It can be retracted or installed independently by taking it in and out. [Selection diagram] Fig. 1

Description

Application of Article 30, Paragraph 2 of the Patent Act Published on the company's website on March 1, 2nd year [Publications, etc.] Published on the company's website on April 1, 2nd year [Publications, etc.] Published on the company's website on April 9, 2nd year [Publications, etc.] Published on the company's website on September 18, 2nd year [Publications, etc.] Published on the company's website on October 1, 2nd year. Published on the site [Publications, etc.] Published on the company's website on October 29, 2nd year [Publications, etc.] Published on the company's website on October 31, 2nd year [Publications, etc.] Published on the company's website on November 26, 2nd year [Publications, etc.] Published on the company's website on January 7, 1991 [Publications, etc.] Published on the site [Publications, etc.] Published on the company's website on January 23, 3rd year [Publications, etc.] Published on the company's website on February 3, 3rd year [Publications, etc.] Published on the company's website on February 6, 1991 [Publications, etc.] Released on the company's website on February 9, 1991 [Publications, etc.]

The present invention relates to an air-type negative pressure chamber device that can be easily installed when a negative pressure chamber is required in a medical field or the like.

Due to the recent epidemic of the new coronavirus (COVID-19), the number of virus-infected persons has increased rapidly, which has become a major problem worldwide. Infected persons such as virus infections, not limited to the new coronavirus, should be isolated in an appropriate facility to prevent the spread of the infection. A negative pressure chamber is used in which the pressure inside the room is lower than that outside the room and ventilation is performed regularly so that the room does not go out as it is.

In a conventional hospital facility, for example, a negative pressure chamber is formed by exhausting indoor air to a specific hospital room by a negative pressure device equipped with an HPEA filter, but there are not so many hospital facilities equipped with a negative pressure chamber. be. In particular, as mentioned above, due to the recent rapid epidemic of the new coronavirus, the number of negative pressure rooms in hospital facilities tends to be insufficient, and countermeasures against them have become an urgent issue.

On the other hand, various techniques related to an infected person isolation room using a negative pressure space have been proposed. For example, in Patent Document 1, two sheets installed with a gap between them are held in a frame shape and are the lowest layer. It has a tent that forms a patient isolation room inside the sheet, and an air purifier and a smoker installed outside the tent, where the air purifier is the negative pressure formed in the gap between the two sheets. The air in the atmosphere generation space is sucked into a negative pressure atmosphere, and the sucked air is sterilized and sterilized and then discharged from the exhaust port. An isolation chamber forming device that returns ozone to oxygen and recovers it has been proposed.

Japanese Unexamined Patent Publication No. 2010-247074

However, Patent Document 1 has a frame formed by providing a spacer between the sheets in order to maintain the two sheets with a gap, or by combining a plurality of rod-shaped members in order to support the sheets. Due to the structure, the number of parts for forming an isolation chamber with a negative pressure atmosphere is large, and it is difficult to easily assemble and use it in a desired place. Therefore, there is a strong demand for the development of a negative pressure chamber that can be easily installed in a predetermined place by anyone and can surely form a negative pressure space.

The present invention has been made in view of the above-mentioned conventional problems, and can be easily and smoothly installed by simply injecting air and expanding, and a negative pressure chamber having a thorough sealing and a good negative pressure state can be provided. It is an object of the present invention to provide an pneumatic negative pressure chamber device that can be formed.

In order to solve the above problems, the present invention comprises an air injection type structure 14 composed of one or a plurality of hollow columnar bodies 12A to 12D and self-supporting by injecting air into the hollow of the hollow columnar bodies 12A to 12D. The air is provided with a flexible sheet 16 that is shape-held by the self-supporting air injection structure 14 to form a closed space 22, and a negative pressure device 18 that puts the closed space 22 into a negative pressure state. It is composed of an pneumatic negative pressure chamber device 10 provided so as to be able to contract or be installed independently by moving air in and out of the injection type structure 14.

Further, the hollow columnar bodies 12A to 12B of the air injection type structure 14 and the sheet 16 may be bonded in advance.

Further, the air injection type structure 14 has a plurality of upper surface side hollow columnar bodies 12C installed on the upper surface side, a plurality of lower surface side hollow columnar bodies 12A installed on the lower surface side, and the upper surface side installed on the side surface side. The hollow columnar body 12C and the side surface side hollow columnar body 12B connecting the lower hollow columnar body 12A in an internal communication state may be included.

Further, the lower surface side hollow columnar body 12A may be composed of two hollow columnar bodies arranged to face each other on the left and right sides and a hollow columnar body connecting them .

Further, on at least one side surface side of the seat 16 that closes the closed space 22, 221, 222, 223, substantially the entire side surface side may be provided so as to be openable and closable. In the case of a configuration in which the closed space 22 is divided into a plurality of parts, substantially the entire side sheet of each of the divided closed spaces (221, 222, 223) may be opened and closed.

According to the pneumatic negative pressure chamber device of the present invention, an air injection type structure composed of one or a plurality of hollow columnar bodies and self-supporting by injecting air into the hollow of the hollow columnar body, and the self-supporting air. A flexible sheet whose shape is maintained by an injection type structure to form a closed space, and a negative pressure device for putting the closed space into a negative pressure state are provided, and air is injected into the air injection type structure. Since it is provided so that it can be shrunk or installed independently by taking it in and out, it is possible to easily install a negative pressure chamber mainly by injecting air into the air injection type structure, and air from the air injection type structure. It can be easily compactly stored by removing the syringe, and it is possible to provide a simple and easy-to-use negative pressure chamber. As a result, the negative pressure chamber can be easily installed in a desired place, the shortage of the negative pressure chamber can be eliminated, and appropriate treatment of an infectious disease patient can be performed while preventing the spread of infection.

Further, by configuring the hollow columnar body of the air injection type structure and the sheet to be bonded in advance, the air injection type structure and the sheet can be appropriately used only by injecting air into the air injection type structure. The negative pressure chamber can be installed very easily because it can be installed in any condition. Further, it is possible to prevent unnecessary air leakage from between the hollow columnar body and the sheet, and to concretely realize a negative pressure chamber structure capable of maintaining a negative pressure state of a closed space satisfactorily.

Further, the air injection type structure includes a plurality of upper surface side hollow columnar bodies installed on the upper surface side, a plurality of lower surface side hollow columnar bodies installed on the lower surface side, and the upper surface side hollow columnar body installed on the side surface side. By including the side hollow columnar body that connects the lower hollow columnar body and the lower hollow columnar body in an internal communication state, the strength of the negative pressure chamber can be maintained even in an air injection type structure and is stable. The negative pressure chamber can be used in the installed state. Furthermore, since multiple hollow columns communicate with each other, the air injection type structure can be easily installed independently by injecting air from one injection port, and a negative pressure chamber can be easily installed. It can be stored easily by simply removing the air from one place.

Further, the closed space formed by the sheet is divided into three divided closed spaces by a partition sheet, and the three divided closed spaces are arranged so that the flow line of a person can be one-way. By dividing the space into three spaces, the front room on the entrance side, the main room for treating patients, and the front room on the exit side, the entrance side and the exit side are different. As a result of ensuring a one-way flow line, the safety and the function of preventing the spread of infection can be further improved.

Further, on at least one side surface side of the sheet that closes the closed space, a bed or a relatively large size can be placed in the closed space by providing a configuration in which substantially the entire side surface side can be opened and closed. It is easy to use because it is easy to put medical equipment in and out of a closed space that becomes a negative pressure room.

It is a perspective explanatory view and a partially enlarged explanatory view of the air type negative pressure chamber device which concerns on one Embodiment of this invention. It is explanatory drawing of the air injection type structure of the air type negative pressure chamber apparatus of FIG. It is explanatory drawing which schematically showed the use example of the air type negative pressure chamber apparatus of FIG.

Hereinafter, embodiments of the pneumatic negative pressure chamber device of the present invention will be described with reference to the accompanying drawings. The pneumatic negative pressure chamber device according to the present invention is a simple installation type negative pressure chamber for infectious disease control that can be easily installed and used in a desired space such as a medical site or a nursing facility as needed. ..

1 to 3 show an embodiment of the pneumatic negative pressure chamber device of the present invention. As shown in FIG. 1, in the present embodiment, the air type negative pressure chamber device 10 has an air injection type structure 14 composed of hollow columnar bodies (12A to 12D) and an outer surface of the air injection type structure 14. It includes a sheet 16 to be closed and a negative pressure device 18. The air type tent 20 is composed of the air injection type structure 14 and the sheet 16, and the negative pressure chamber is formed by exhausting the air in the air type tent 20 by the negative pressure device 18.

As shown in FIGS. 1 and 2, the air injection type structure 14 is in a contracted state when air is evacuated, and is an air type frame that gains bearing capacity by injecting air and inflating to become self-supporting. The body. In the present embodiment, the air injection type structure 14 is formed, for example, by combining a plurality of hollow columnar bodies 12A, 12B, 12C, and 12D to form a three-dimensional frame structure. Each of the hollow columnar bodies 12A to 12D is formed in a hollow cylindrical shape with a flexible material such as vinyl resin, and has a predetermined strength by injecting air into the hollow cylinder to inflate and functions as a frame.

FIG. 2 shows only the air injection type structure 14 for the sake of explanation, but as shown in FIG. 2, specifically, the air injection type structure 14 has a plurality of lower surfaces installed on the lower surface side. Inside the side hollow columnar body 12A, a plurality of side surface side hollow columnar bodies 12B installed standing up on the side surface side, a plurality of upper surface side hollow columnar bodies 12C installed on the upper surface side, and an internal space surrounded by them. It has an erected inner hollow columnar body 12D.

For example, three hollow columnar bodies 12A on the lower surface side are arranged in a substantially U-shape, and one is arranged so as to connect the intermediate positions of the two hollow columnar bodies 12A on the inner side of the U-shape. It is a combination of four.

The lower end of the side surface side hollow columnar body 12B is connected to the lower surface side hollow columnar body 12A and stands vertically. For example, the four corner positions of the lower surface side hollow columnar body 12A assembled in a U shape and the U shape. A total of 6 pieces are arranged at a position where both ends of the hollow columnar body 12A on the lower surface side on the inner side are connected.

The upper surface side hollow columnar body 12C includes three upper surface side hollow columnar bodies 12C arranged so as to connect the upper ends of the side surface side hollow columnar bodies 12B arranged to face each other, and these three upper surface side hollow columnar bodies 12C. It is composed of three hollow columnar bodies 12C on the upper surface side arranged so as to be connected orthogonally to each other, and a total of six are installed. The connecting portion between the side surface side hollow columnar body 12B and the upper surface side hollow columnar body 12C is rounded, and they are formed as an inverted U-shaped hollow columnar body. Therefore, three inverted U-shaped hollow columns are set at intervals, and these inverted U-shaped hollow columns are connected by the upper surface side hollow columnar body 12C and the lower surface side hollow columnar body 12A. It can be said to be a composition.

The inner hollow columnar body 12D is erected by being connected to an intermediate position of the lower surface side hollow columnar body 12A whose lower end is arranged inside the U-shape, and its upper end is connected to the upper surface side hollow columnar body 12C.

The lower surface side hollow columnar body 12A, the side surface side hollow columnar body 12B, the upper surface side hollow columnar body 12C, and the inner hollow columnar body 12D are connected to each other in an internal communication state so that air can freely pass through each other. ing. That is, in the air injection type structure 14, four lower surface side hollow columnar bodies 12A and six upper surface side hollow columnar bodies 12C are composed of six side surface side hollow columnar bodies 12B and one internal hollow columnar body 12D. They are connected and assembled in a state of internal communication with each other. As shown in a partially enlarged view in FIG. 1, the air injection type structure 14 is provided with an air valve 26 serving as an air inlet / outlet inlet in one side surface side hollow columnar body 12B. Since all the hollow columnar bodies 12A to 12D communicate internally, by injecting air from one air valve 26 with a blower 28, the whole can be inflated by injecting air, and it is easily self-supporting. Can be assembled into. Further, all the hollow columnar bodies 12A to 12D can be shrunk and compactly stored only by discharging air from one air valve 26. The air injection type structure 14 is not limited to the above-mentioned hollow columnar structure, and the number, arrangement, size, and the like of the hollow columnar bodies may be arbitrary. Further, the air injection type structure 14 may be composed of, for example, one hollow columnar body 12 having a predetermined shape. Further, two air valves may be provided to automatically control the air pressure inside the hollow columnar body 12. At this time, for example, when the internal air pressure of the hollow columnar body 12 becomes a certain pressure or higher, It may be automatically exhausted to prevent bursting.

The sheet 16 is made of a sheet made of a flexible material, and is supported by being held in shape by an air injection type structure 14 to which air is injected and stands on its own, and the outer surface side of the air injection type structure 14 is supported. It is a covering means that covers and forms a closed space 22 that becomes a negative pressure chamber inside. In the present embodiment, for example, it is made of a transparent vinyl resin or the like so that the inside of the closed space 22 can be seen from the outside. As shown in FIG. 1, in the present embodiment, the sheet 16 is deployed and installed so as to cover the lower surface side, the four side surfaces, and the upper surface side of the pneumatic structure 14. The sheet 16 is pre-bonded to each of the hollow columnar bodies 12A to 12D of the air injection type structure 14 at the bonding portion 30. By adhering the sheet 16 and the air injection type structure 14 at predetermined positions in advance in this way, the sheet 16 is automatically also the air injection type structure 14 simply by injecting air into the air injection type structure 14. A predetermined closed space 22 can be formed in a deployed state covering the above, and a negative pressure chamber can be easily installed. In a state where air is evacuated from the air injection type structure 14, it can be folded or bent together with the hollow columnar bodies 12A to 12D and stored compactly.

One side sheet 16 is provided with a wire fastener 32 for allowing a person to partially open and close the closed space 22 in order to enter and exit the closed space 22. In the present embodiment, since the inlet and the outlet have different structures as described later, the wire fastener 32 for the inlet and the wire fastener 32 for the exit are provided. In FIG. 1, the line fastener 32 for the entrance is vertically provided in a straight line. The wire fastener 32 for the exit is provided in an inverted J shape, and is set so as to be opened larger than the opening width for the entrance when the wire fastener 32 is opened. In the present embodiment, for the sake of explanation, the side surface side where the doorway is provided is the front side, the opposite side is the rear side, and the lateral direction orthogonal to the front-rear direction is the left-right direction.

As shown in FIGS. 1 and 3, in the present embodiment, the closed space 22 formed by the sheet 16 is divided into three divided closed spaces 221, 222, 223 by the partition sheet 34. For example, a first partition sheet 34 is installed at an intermediate position between the front and rear of the closed space 22 so as to divide the closed space 22 into two in the front-rear direction.

Further, a second partition sheet 34 is installed so as to further divide the space on the front side of the space divided into front and rear into two on the left and right. That is, by installing the partition sheet 34 in the closed space 22 in a substantially T-shape in a plan view, the closed space 22 has three first, second, and third divided closed spaces 221, 222, 223. Is formed.

Each partition sheet 34 is made of a flexible material such as a transparent vinyl resin, and is installed corresponding to the position where the hollow columnar bodies 12A to 12D are installed at the front and rear intermediate positions. It is previously adhered to those hollow columnar bodies 12A to 12D. That is, the first partition sheet 34 is adhered to the lower surface side hollow columnar body 12A, the side surface side hollow columnar body 12B, the upper surface side hollow columnar body 12C, and the inner hollow columnar body 12D at the front and rear intermediate positions.

The second partition sheet 34 is a sheet 16 in which two sides are adhered to an upper hollow columnar body 12A and an inner hollow columnar body 12D which are long in the front-rear direction at the middle position between the left and right sides, and the other two sides close the front side surface. And is adhered to a sheet 16 that closes the lower surface side, and the first divided closed space 221 and the third divided closed space 223 are completely partitioned.

In the present embodiment, for example, the space facing the sheet 16 where the entrance is provided by the entrance line fastener 32 is set as the first divided closed space 221 and the largest space on the rear side is used to treat an infected person or the like. The second divided closed space 222 which is the main room to be isolated is used, and the space facing the sheet 16 where the exit is provided by the line fastener 32 for the exit is referred to as the third divided closed space 223.

The first and third divided closed spaces 221 and 223 are the front chambers of the second divided closed space 222, which is the main room in which the infected person is isolated, and have a structure in which the entrance and the exit are separated. , Has realized a negative pressure chamber that can be used more safely. That is, the first, second, and third divided closed spaces 221 and 222, 223 divided into three by the partition sheet 34 are transferred from the first divided closed space 221 to the second divided closed space 222, and then to the second. It is provided so that the movement line of a person can be one-way from the divided closed space 222 of the second to the third divided closed space 223.

The partition sheet 34 is provided with a vertically linear line fastener 36 that allows a part of the sheet 34 to be opened and closed in order to enter the first divided closed space 221 to the second divided closed space 222. A substantially U-shaped line fastener 36 is provided so that a part of the sheet 34 can be opened and closed in order to enter the third divided closed space 223 from the second divided closed space 222.

As shown in FIG. 1, one of the sheets 16 that closes the side surface side of the second divided closed space 222 is provided so that substantially the entire side surface side can be opened and closed. For example, the sheet 16 on the side surface side is provided with a line fastener 38 formed in a substantially U shape so as to be adjacent to the two hollow columnar bodies 12B on the side surface side and the hollow columnar body 12C on the lower surface side. When the substantially U-shaped line fastener 38 is opened, substantially the entire side surface side is opened.

As a result, by forming an openable / closable portion on the sheet 16 that can be opened in a relatively large area separately from the entrance / exit of a person, for example, a bed or a relatively large medical equipment can be smoothly taken in and out of the closed space 22. Is possible.

In the present embodiment, the sheet support means 40 for opening the line fastener 38 of the sheet 16 on the side surface side and holding the sheet portion inside the U-shape in an open state is provided, and the line fastener 38 is maintained in the open state. You can prevent it from getting in the way when you put in and take out the bed and equipment.

The sheet supporting means 40 has, for example, a plurality of strip-shaped members whose one end is fixed to the sheet 16, and the strip-shaped member is wound around the strip-shaped member in a state where the U-shaped inner sheet portion is rolled up from below. It can be fixed and supported by a surface fastener or the like provided at the end of the member.

It should be noted that a configuration in which substantially the entire side seat can be opened and closed may be provided on the plurality of side seats 16. Further, for example, even when the closed space 22 is formed in one space, substantially the entire seat on the side surface of at least one of them may be provided so as to be openable and closable.

The negative pressure device 18 is an element of a negative pressure forming means that makes the closed space 22 a negative pressure chamber by exhausting the air in the closed space 22 formed by the sheet 16 to bring it into a negative pressure state. In the present embodiment, the negative pressure device 18 cooperates with the ventilation port 42 and the internal ventilation port 44, which will be described later, to divide the first, second, and third divided closed spaces 221 into three closed spaces 22. It constitutes a negative pressure forming means that makes all of 222 and 223 negative pressure.

For example, the negative pressure device 18 has a built-in HEPA filter (High Efficiency Particulate Air Filter), and the air sucked from the intake port 24 is collected by the filter to collect viruses, pathogens, dust, etc., and only clean air is exhausted. It is an exhaust unit that exhausts air from the mouth 25. In the negative pressure device 18, the pipe connected to the intake port 24 penetrates the seat 16 on the side surface side and internally communicates with the second divided closed space 222 of the closed space 22, and the second divided closed space 222 is connected to the second divided closed space 222. The air inside is sucked and exhausted to the outside through the exhaust port 25.

As shown in FIG. 1, each sheet 16 that closes the side surface side and the upper surface side is provided with an openable and closable ventilation port 42 for ventilating air. Further, the partition sheet 34 is provided with an internal ventilation port that can be opened and closed so as to communicate and close the first divided closed space 221 and the second divided closed space 222, and the second divided closed space 222. An internal ventilation port 44 that can be opened and closed is provided so as to communicate and close the third divided closed space 223.

The ventilation port 42 of the sheet 16 takes in air into the closed space 22 from the outside in response to exhausting the air in the closed space 22 by the negative pressure device 18, and the negative pressure in the closed space 22 with a predetermined pressure difference. An air intake that maintains the state. The pressure difference between the closed space 22 and the outside can be adjusted by adjusting the amount of air taken in by opening and closing the ventilation port 42. The negative pressure device 18 is connected only to the second divided closed space 222 of the three spaces as in the previous technique, but the first is formed by forming an air passage through the internal ventilation port 44 of the partition sheet 34. The split closed space 221 and the third split closed space 223 can also be in a negative pressure state at the same time.

The amount of air flowing through the divided closed spaces 221, 222, and 223 divided by opening and closing the internal ventilation port 44 can be adjusted to adjust the negative pressure state of an appropriate differential pressure. If a filter or the like is installed in the ventilation port 42 or the internal ventilation port 44, it can be used more safely as a negative pressure chamber.

Next, an example of using the pneumatic negative pressure chamber device 10 according to the present embodiment will be described. For example, when the air-type negative pressure chamber device 10 is stored or carried to a desired place, air is evacuated from the air-injection type structure 14 to bring it into a contracted state to keep it in a compact state. When a negative pressure chamber is required at a medical site or the like, it is carried to the site and air is injected from an air valve 26 provided in one hollow column state 12B of the air injection type structure 14 to form an air injection type structure. Inflate the body 14 to make it independent.

Each of the hollow columnar bodies 12A to 12D of the air injection type structure 14 is internally communicated and connected, and the hollow columnar bodies 12A to 12D and the sheet 16 and the partition sheet 34 are previously adhered to each other in one place. The air type tent 20 can be easily installed only by injecting air from the air valve 26 of the above. When the air-type tent 20 composed of the air-injection type structure 14 and the seat 16 is installed, a closed space 22 divided into three spaces is formed inside the seat 16. By connecting the negative pressure device 18 and exhausting the air in the closed space 22, a differential pressure is generated between the closed space 22 and the outside, and a negative pressure state is established. At this time, the ventilation port 42 of the seat 16 and the internal ventilation port 44 of the partition sheet 34 are appropriately opened and closed to adjust the amount of air and the air pressure in the first, second, and third spaces in the closed space 22. ..

In a state where the closed space 22 is in a negative pressure state to form a negative pressure chamber, as shown in FIG. 3, a virus-infected person is isolated in the negative pressure chamber and treatment or the like is performed while trying to prevent the spread of infection. For example, in the present embodiment, a virus-infected person is housed and isolated in a second divided closed space 222 to which a negative pressure device 18 is connected in the closed space 22. When a medical worker such as a doctor or a nurse enters or leaves the negative pressure chamber for treatment or the like, he / she will pass through the three spaces of the closed space 22 in a one-way manner.

First, the line fastener 32 on the entrance side of the sheet 16 is opened to enter the first divided closed space 221 and the line fastener 32 is closed. Change clothes in the first partitioned closed space 221 as needed. When the differential pressure between the inside and the outside of the closed space 22 becomes small due to the opening and closing of the wire fastener 32, it is advisable to wait until a predetermined differential pressure state is reached. Next, the line fastener 36 of the partition sheet 34 is opened, and the medical worker enters the second divided closed space 222 from the first divided closed space 221 and closes the line fastener 36.

After treating the infected person or the like in the second divided closed space 222, the medical worker opens the partition fastener 36 leading to the third divided closed space 223, and the second divided closed space 222 to the third Move to the split closed space 223 and close the line fastener 36. In the third divided closed space 223, you may change your clothes. In this way, the first divided closed space 221 on the entrance side and the third divided closed space 223 on the exit side are partitioned, and the flow lines of people are one-way in the order of the first, second, and third spaces. Since the closed space 22 is divided into three so as to be, it is possible to treat an infected person in a negative pressure chamber while ensuring higher safety.

The pneumatic negative pressure chamber device of the present invention described above is not limited to the configuration of only the above-described embodiment, and can be arbitrarily modified as long as it does not deviate from the essence of the present invention described in the claims. You may go.

The pneumatic negative pressure chamber device of the present invention can be easily installed in a desired space indoors or outdoors to form a negative pressure chamber and can be used for treatment of a virus-infected patient or the like.

10 Air type negative pressure chamber device 12A Bottom side hollow columnar body 12B Side side hollow columnar body 12C Top side side hollow columnar body 12D Inner hollow columnar body 14 Air injection type structure 16 Sheet 18 Negative pressure device 20 Air type tent 22 Closed space 221 1st space 222 2nd space 223 3rd space 34 Partition sheet

Claims (5)

An air injection type structure composed of one or more hollow columnar bodies and self-supporting by injecting air into the hollow of the hollow columnar body,
A flexible sheet that is shape-held by the self-supporting air-injection structure to form a closed space.
A negative pressure device that puts the closed space into a negative pressure state is provided.
It is provided so that it can be shrunk or installed independently by taking air in and out of the air injection type structure .
The front side seat has entrances and exits adjacent to each other on the left and right.
The closed space is divided back and forth by a T-shaped partition sheet in a plan view, and the front side divided closed space is further divided into an entrance side and an exit side and left and right to form three divided closed spaces. And
An air-type negative pressure chamber device characterized in that these three divided closed spaces are provided so that the flow line of a person can be one-way from the entrance to the exit . The pneumatic negative pressure chamber device according to claim 1, wherein the hollow columnar body of the air injection type structure and the sheet are bonded in advance. The air injection type structure includes a plurality of hollow columnar bodies on the upper surface side installed on the upper surface side, and the hollow columnar body on the upper surface side.
Multiple lower surface side hollow columnar bodies installed on the lower surface side,
The pneumatic negative pressure according to claim 1 or 2, further comprising a side surface side hollow columnar body installed on the side surface side and connecting the upper side hollow columnar body and the lower side hollow columnar body in an internal communication state. Room device. The pneumatic negative pressure chamber according to claim 3, wherein the lower surface side hollow columnar body is composed of two hollow columnar bodies arranged to face each other on the left and right sides and a hollow columnar body connecting them. Device. The pneumatic shade according to any one of claims 1 to 4, wherein on at least one side surface side of the sheet closing the closed space, substantially the entire side surface side is provided so as to be openable and closable. Pressure chamber device.

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