JP7389326B2 - Airtightness test equipment and airtightness test method - Google Patents

Description

The present invention relates to a test device and a test method for measuring the airtight performance of a simulated door.

BACKGROUND ART Conventionally, an airtightness testing device and method for testing the airtightness performance of an airtight door provided in a building or the like has been known (for example, see Patent Document 1). The airtight test device described in Patent Document 1 includes a panel-shaped airtight cover body that forms a space between the airtight cover and the surface of the airtight door. Then, with the airtight door sealed, a predetermined amount of air is sent into the space, and the airtight performance of the airtight door is measured by measuring the amount of air sent into the space.

JP2009-216434A

The airtightness test device described in the above patent document is used after the airtight door is actually installed in the building, so it is not possible to test or preliminary measure the airtightness performance of the airtight door at the development stage. could not. Furthermore, it has been impossible to conduct a vibration experiment in which shaking is applied to the airtightness test equipment in order to measure the airtightness performance after an earthquake occurs.

The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to be able to experimentally or preliminary measure the airtight performance of an airtight door, and to improve the airtightness after an earthquake. It is an object of the present invention to provide an airtightness testing device and an airtightness testing method that make it possible to conduct an excitation experiment to measure performance.

In order to solve the above-mentioned problems, the present invention provides an airtightness testing device configured as follows.

(1)
a self-supporting frame body having an opening; and a frame body provided in the frame body so as to be displaceable between an open position in which the opening part is opened and a closed position in which the opening part is sealed from one side of the frame body. an airtightness test device configured as a simulated door configured to be self-supporting and capable of being placed on an excitation device, and measuring the airtightness performance of the door body at the opening. The frame is provided with a container that seals the opening from the other side of the frame and forms an airtight space, and the container includes a flow path communicating with the container; A pressure gauge that measures the atmospheric pressure inside the container is provided, and the flow path includes a compressor that causes gas to flow into the container, and a flow meter that measures the amount of gas flowing into the container. and the compressor causes the gas to flow into the container so that the pressure inside the container as measured by the pressure gauge remains constant for a predetermined time with the door main body placed in the sealed position, Based on the inflow amount measured by the flowmeter within a predetermined time, the amount of gas leaking from the sealed portion of the opening by the door body is measured, and the frame has a pair of gas leakage holes near the opening. Guide rails are provided, the pair of guide rails are provided along the vertical direction in the frame, and the door body slides between the open position and the closed position along the pair of guide rails. The door body is provided so as to be movable up and down, and when the door body is lowered, the opening is sealed, and the door body is attached to either the periphery of the opening or the peripheral edge of the door body. Airtightness test equipment that is equipped with a packing that comes into contact with the other part when it is sealed .

(2)
A guide roller is provided on the side of the pair of guide rails in the door main body and is rotatable inside the guide rail around an axis extending to the side of the guide rail . In (1), when the main body seals the opening, the guide rail guides the guide roller to displace the door main body toward the frame, so that the other presses the packing. The airtightness test device described.

Moreover, in order to solve the above-mentioned problem, the present invention provides an airtightness test method configured as follows.

(3)
a self-supporting frame body having an opening; and a frame body provided in the frame body so as to be displaceable between an open position in which the opening part is opened and a closed position in which the opening part is sealed from one side of the frame body. An airtightness test method for measuring the airtightness performance of the door body at the opening using a simulated door that is configured to be self-supporting and can be placed on an excitation device. The frame body is provided with a pair of guide rails near the opening, the pair of guide rails are provided along the vertical direction in the frame body, and the door body is provided with a pair of guide rails in the vicinity of the opening. The door is provided so as to be movable up and down by sliding between the open position and the closed position along a guide rail, and when the door body is lowered, the opening is sealed, and the door body is moved around the opening and the door body. A gasket is provided on one side of the peripheral edge of the door body to be in contact with the other side when the door body seals the opening, and a gasket is provided on the other side of the frame that seals the opening and airtightly seals the opening. A container forming a space is provided, a flow path communicating with the container and a pressure gauge for measuring the atmospheric pressure in the container are provided in the container, and gas is caused to flow into the container through the flow path. A compressor and a flow meter that measures the amount of gas flowing into the container are provided, and when the door body is placed in a sealed position, the pressure inside the container as measured by the pressure gauge is constant for a predetermined period of time. The compressor causes the gas to flow into the container, and the amount of gas leaking from the sealed portion of the opening by the door body is determined based on the inflow amount measured by the flowmeter within the predetermined time. is measured, the frame body and the door body are placed on a vibrating device with the door body placed in an open position, and after being vibrated by the vibrating device, the door body is displaced to a closed position. and the compressor causes the gas to flow into the container so that the pressure inside the container as measured by the pressure gauge remains constant for a predetermined time, and based on the inflow amount measured by the flow meter within the predetermined time. and an airtightness test method for measuring the amount of gas leaking from a sealed portion of the opening by the door body .

According to the airtightness testing device according to the present invention as described above, since an airtightness test can be performed before installing an airtight door in a building, etc., the airtightness performance of the airtight door can be measured experimentally or preliminarily, and , it becomes possible to conduct vibration experiments to measure airtightness performance after an earthquake occurs. Further, with a simple configuration, it is possible to seal the opening of the frame with the door body. Furthermore, by lowering the door body using its own weight, it is possible to seal the opening of the frame with a simpler configuration.

Furthermore, according to the above airtightness test method according to the present invention, the airtightness test can be performed before the airtight door is installed in a building, etc., so it is possible to experimentally or preliminary measure the airtightness performance of the airtight door. becomes. Additionally, it becomes possible to measure airtightness in a simulated manner after an earthquake occurs.

FIG. 3 is a front view showing the airtightness test device with the elevating door open. FIG. 3 is a front view showing the airtightness test device with the elevator door closed. FIG. 3 is a sectional view taken along line AA in FIG. 2. A cross-sectional view taken along the line BB in FIG. 2. A sectional view taken along the line CC in FIG. 2. A sectional view taken along the line DD in FIG. 2. FIG. 3 is a plan sectional view showing the assembled configuration of the container. FIG. 3 is a plan sectional view showing the configuration around the guide roller.

Hereinafter, an airtightness test apparatus 1 according to an embodiment of the present invention will be described using FIGS. 1 to 8. As shown in FIGS. 1 to 4, the airtightness testing apparatus 1 is configured as a simulated door having airtightness and including a frame 2 and a door body 20. Hereinafter, the right direction in FIGS. 1 and 2 will be described as the right side of the airtightness testing apparatus 1, and the left side in FIGS. 3 and 4 will be described as the front of the airtightness testing apparatus 1.

As shown in FIGS. 1 to 4, the frame body 2 is configured to be self-supporting, and specifically, a plurality of H-beams are mainly connected by connecting members such as bolts and nuts or by welding. It constitutes a frame 2. More specifically, the frame 2 includes a base frame 3a, a vertical frame 3b, a horizontal frame 3c, an open vertical frame 3d, an open horizontal frame 3e, a connecting frame 3f, a first reinforcing frame 3g, and a second reinforcing frame 3h. , and brace 4. Note that the frame body 2 may be configured using a configuration other than combining H-shaped steels.

As shown in FIGS. 1 and 2, five base frames 3a installed on the floor are arranged at the bottom of the frame 2, with the longitudinal direction facing forward and backward. On the front side of the base frame 3a at both the left and right ends, two vertical frames 3b arranged in the front and rear are erected. In addition, two open vertical frames 3d arranged in the front and rear are erected on the front side of the second base frame 3a from both left and right ends (see FIG. 3). As shown in FIG. 2, the vertical frame 3b and the open vertical frame 3d are connected to each other by a plurality of braces 4, thereby increasing the rigidity of the frame body 2.

The upper end surfaces of the front and rear vertical frames 3b and the open vertical frame 3d are connected by a horizontal frame 3c whose longitudinal direction is oriented left and right. Further, the upper end portions and the vertical midway portions of the two vertical frames 3b and the open vertical frame 3d lined up front and rear are connected by a connecting frame 3f.

The lower end portions of the open vertical frames 3d and the midway portions in the vertical direction are connected to each other by the open horizontal frame 3e. In addition, the upper surface of the central base frame 3a, the central lower surface of the lower open horizontal frame 3e, the central upper surface of the lower open horizontal frame 3e, the central lower surface of the upper open horizontal frame 3e, and the upper open horizontal frame 3e. The central upper surface of the horizontal frame 3c and the central lower surface of the horizontal frame 3c are respectively connected by a central frame 3m.

As shown in FIGS. 3 and 4, the rear end portion of the base frame 3a is connected to the horizontal frame 3c by a first reinforcing frame 3g. Further, the central portion of the first reinforcing frame 3g is connected to the vertical frame 3b, the open vertical frame 3d, or the open horizontal frame 3e located on the front side thereof by the second reinforcing frame 3h.

As shown in FIG. 1, a rectangular opening 2a is formed on the front side of the frame 2 by two open vertical frames 3d, 3d and two open horizontal frames 3e, 3e. In the frame 2, a packing 2p made of elastic resin is provided around the opening 2a on the front surfaces of the vertical opening frames 3d and the horizontal opening frames 3e. The packing 2p comes into contact with the peripheral edge of the rear surface of the door body 20 when the door body 20 closes the opening 2a, as shown in FIGS. 7 and 8. In addition, by providing the packing 2p on the peripheral edge of the rear surface of the door body 20, when the door body 20 closes the opening 2a, the packing 2p and the surrounding area of the opening 2a in the frame 2 come into contact with each other. It is also possible.

The frame body 2 is provided with a door body 20. The door body 20 is configured to be movable between an open position (see FIG. 1) in which the opening 2a is opened and a closed position (see FIG. 2) in which the opening 2a is sealed from the front side of the frame 2. Ru. The airtightness test device 1 measures the airtightness performance of the door body 20 at the opening 2a with the door body 20 sealing the opening 2a. The front surface of the frame 2 in the airtightness testing device 1 according to the present embodiment is covered with a cover member 5 except in front of the opening 2a.

As shown in FIGS. 1 and 2, the airtightness testing apparatus 1 is configured such that the door main body 20 located at the upper open position is moved down to the closed position, thereby sealing the opening 2a. Note that the displacement configuration of the door body 20 in the airtightness testing apparatus 1 is not limited to an elevating door in which the door body 20 moves up and down, and for example, a configuration in which the door body 20 slides in the horizontal direction is also possible.

The door body 20 is a member that is thick in the front-rear direction and is constructed by combining a plurality of frame members and plate members. As shown in FIGS. 1 and 2, the door body 20 is slidable in the vertical direction along the guide rails 11, 11 between a pair of guide rails 11, 11 erected on both left and right sides of the door body 20. provided. The guide rails 11, 11 are provided near both sides of the opening 2a in the frame body 2 (front surfaces of the open vertical frames 3d, 3d) along the vertical direction.

As shown in FIGS. 5, 7, and 8, groove shapes 11a are formed on the surfaces of the guide rails 11, 11 facing each other. Guide rollers (opening side guide roller 26U and closing side guide roller 26D) extending from the door main body 20 are inserted into the inside of this groove shape 11a.

As shown in FIG. 5, in this embodiment, guide rollers 26U and 26D are provided on the lower side of the front side (the side far from the frame 2) of the inner peripheral surface of the groove shape 11a in the guide rail 11. Two protrusions 13a and 13b are provided for this purpose.

From both left and right sides of the door body 20, two guide rollers 26U and 26D each extend outward from the guide rails 11 and 11 (both left and right sides) along the vertical direction, which is the sliding direction of the door body 20. It is set out. Specifically, on the outer surface of the door body 20, an opening-side guide roller 26U is provided on the upper side, which is the side on which the door body 20 slides when opening the opening 2a in the sliding direction of the door body 20. Similarly, a closing-side guide roller 26D is provided on the lower side of the sliding direction of the door body 20, which is the side on which the door body 20 slides when closing the opening 2a.

The guide rollers 26U and 26D move inside the guide rails 11 and 11 (in the groove shape 11a) around the axes of the open-side rotation shaft 25U and the closed-side rotation shaft 25D that extend toward the guide rails 11 and 11. It can be rotated (internally). As a result, when the door body 20 slides along the guide rails 11, 11, the guide rollers 26U, 26D move along the groove shape 11a (more specifically, the front and rear surfaces of the groove shape 11a) of the guide rails 11, 11. and rotate. The closed-side guide roller 26D is formed to have a smaller diameter than the open-side guide roller 26U.

Further, on both left and right sides of the door body 20, auxiliary rollers 27 are provided above the opening side guide roller 26U and below the closing side guide roller 26D. When the door body 20 slides along the guide rails 11, 11, the auxiliary roller 27 rotates along the groove shape 11a (more specifically, the side surface of the groove shape 11a) of the guide rails 11, 11.

Inside the door body 20, a right door pulley 30R and a left door pulley 30L, which are movable pulleys, are rotatably disposed. A rope r extending outside the door body 20 is wound around the right door pulley 30R and the left door pulley 30L.

A second fixed pulley P2 and a third fixed pulley P3, which are a pair of fixed pulleys, are fixed above the right door pulley 30R and left door pulley 30L in the frame 2. Both ends of the rope r sandwiching the left and right door pulleys 30R and 30L are wound around the second fixed pulley P2 and the third fixed pulley P3, respectively.

As shown in FIG. 2, the rope r is wound around the first constant pulley P1 at one end (on the right side in FIG. 2) of the second constant pulley P2, and further, one end is wound around the electric winch M provided on the frame 2. Concatenated. Further, the rope r is wound around a fourth fixed pulley P4 at the other end (on the left side in FIG. 2) of the third fixed pulley P3, and the other end is connected to a manual winch H provided on the frame 2. Ru. The manual winch H is locked so as not to rotate under normal conditions (when the electric winch M is used as the main drive source).

In the airtightness testing apparatus 1 configured as described above, the electric winch M drives the door body 20 up and down. Specifically, when the electric winch M winds up the rope r, the door body 20 is pulled upward. Conversely, when the electric winch M lets out the rope r, the door body 20 descends downward due to its own weight. As described above, in the airtightness test apparatus 1 according to the present embodiment, the door body 20 moves up and down the opening 2a formed between the guide rails 11 by driving the electric winch M to raise and lower the door body 20. It can be opened and closed.

Furthermore, in the airtightness testing apparatus 1, the door main body 20 can also be driven up and down by a manual winch H, which is a second drive unit. Specifically, the user unlocks the manual winch H and rotates the handle of the manual winch H. As a result, the rope r is wound up and the door body 20 is pulled upward. Conversely, when the user rotates the handle of the manual winch H in the opposite direction to let out the rope r, the door body 20 descends under its own weight. In this way, in the airtightness test device 1 according to the present embodiment, the door body 20 can be formed between the guide rails 11 by the user rotating the manual winch H to raise and lower the door body 20. The opening 2a can be opened and closed.

According to the airtightness testing device 1 according to the present embodiment, as described above, the door body 20 can be raised and lowered by driving the electric winch M and/or the manual winch H. Therefore, even if the electric winch M is unable to raise and lower the door body 20 due to a power outage or other reasons, the airtightness testing device 1 can be opened and closed by raising and lowering the door body 20 with the manual winch H. .

In the airtightness test device 1 according to the present embodiment, when the door body 20 closes the opening 2a, the guide rails 11 and 11 guide the guide rollers 26U and 26D to move the door body 20 toward the frame body 2 side. It is configured to be displaced in a certain backward direction. Specifically, as shown in FIG. 5, the front side (the side far from the frame 2) of the inner circumferential surface of the groove shape 11a in the guide rail 11 has a groove formed when the door body 20 closes the opening 2a. , an open side protrusion 13a is provided at a portion where the open side guide roller 26U is located. Similarly, on the front side of the inner peripheral surface of the groove shape 11a, a closing side protrusion 13b is provided at a portion where the closing side guide roller 26D is located when the door main body 20 closes the opening 2a.

In the above configuration, when the door main body 20 is lowered, the closing-side guide roller 26D comes into contact with the closing-side protrusion 13b, and thereby the closing-side guide roller 26D is guided rearward. At the same time, the open-side guide roller 26U comes into contact with the open-side protrusion 13a, and thereby the open-side guide roller 26U is guided rearward. That is, by simultaneously guiding the guide rollers 26U and 26D backward, the door body 20 is displaced toward the frame 2 while descending. As a result, the door body 20 comes into contact with the packing 2p, and the peripheral edge of the door body 20 presses the packing 2p.

As described above, in the airtightness test device 1 according to the present embodiment, when the door body 20 closes the opening 2a, the protrusions 13a and 13b on the guide rails 11 and 11 guide the guide rollers 26U and 26D. The door body 20 is displaced to the frame body 2 side. Thereby, as shown in FIG. 8, the peripheral portion of the door body 20 is configured to press the packing 2p. In this way, in this embodiment, the door body 20 and the periphery of the opening 2a can be brought into close contact with each other via the packing 2p, so that the airtightness or watertightness of the airtightness testing device 1 in the closed state can be checked with a simple configuration. It becomes possible to secure it.

Note that the packing 2p may be provided at the peripheral edge of the rear surface of the door body 20, so that when the door body 20 closes the opening 2a, the packing 2p comes into contact with the periphery of the opening 2a in the frame 2. In this case, when the door body 20 closes the opening 2a, the door body 20 is displaced toward the frame 2, so that the periphery of the opening 2a presses the packing 2p.

In addition, in the airtightness testing device 1 according to the present embodiment, the protrusions 13a and 13b provided on the inner peripheral surfaces of the front sides of the guide rails 11 and 11 guide the open-side guide roller 26U and the closed-side guide roller 26D, respectively. It is configured to do this. As a result, the door body 20 can be displaced toward the frame 2 side with a simple configuration, and the door body 20 and the periphery of the opening 2a can be brought into close contact with each other via the packing. It becomes possible to ensure airtightness or watertightness in the area.

Note that the configuration for displacing the door body 20 toward the frame body 2 is not limited to the configuration using the projections 13a and 13b as described above. For example, a bent guide groove is provided on the side surface of the door body 20, a guide rod is extended from the guide rails 11, 11 toward the door body 20, and this guide rod is inserted into the guide groove. By moving the door body 20 up and down, it is also possible to displace the door body 20 along the shape of the guide groove.

In addition, the airtightness test device 1 according to the present embodiment has a configuration in which a pair of guide rails 11 are provided along the vertical direction in the frame 2, and the opening 2a is closed when the door body 20 is lowered. . As a result, when the door body 20 closes the opening 2a, the door body 20 is lowered using its own weight and is displaced toward the frame 2, so that the door body 20 and the opening 2a are closed. The surroundings can be brought into close contact with each other through the packing 2p. That is, according to the airtightness test device 1 according to the present embodiment, it is possible to ensure airtightness or watertightness in the closed state with a simpler structure compared to a structure in which the door body is slid horizontally.

In the airtight test device 1 according to the present embodiment, the frame 2 is provided with a container Ch that seals the opening 2a from the rear side of the frame 2 and forms an airtight space S. Specifically, as shown in FIGS. 3 and 4, the space between the two upper open horizontal frames 3e and 3e is sealed with the top cover 6U, and the space between the two lower open horizontal frames 3e and 3e is sealed. is sealed with the lower lid 6D. Furthermore, as shown in FIGS. 6 and 7, the space between the two right open vertical frames 3d and 3d is sealed with the right side lid 7R, and the space between the two left open vertical frames 3d and 3d is sealed on the left side. It is sealed with a face lid 7L.

As shown in FIGS. 4, 6, and 7, the right rear opening formed by the rear opening horizontal frames 3e and 3e, the right rear opening vertical frame 3d, and the center frame 3m is located on the right rear side. The left rear opening formed by the rear open horizontal frames 3e, 3e, the left rear open vertical frame 3d, and the central frame 3m is closed by the left rear cover 8L.

As described above, in the airtightness test device 1, the upper lid 6U, the lower lid 6D, the right side lid 7R, and the left side lid 7L, the right back cover 8R, and the left back cover 8L to form a container Ch that seals the opening 2a from the rear side. That is, the internal space surrounded by the door body 20 and the container Ch is formed as an airtight space S (shaded area shown in FIGS. 4 and 6). Note that, apart from this configuration, a configuration in which a container independent from the frame body 2 is assembled to the frame body 2 is also possible. Moreover, it is also possible to provide the container Ch constituting the airtight space S on the front side of the door main body 20 or on both sides of the front and rear surfaces.

In this embodiment, continuous welding or intermittent welding + caulking (sealing) is employed to seal the space between each frame with each lid member. In addition, a packing (double packing if high airtight performance is required) should be inserted between each lid member and each frame, and each lid member and each frame should be tightened with fixing members such as bolts. is also possible. In particular, when assembling the right back cover 8R and left back cover 8L to the frame, it is desirable to insert a packing to further improve airtightness.

In the airtightness test device 1 according to the present embodiment, the container Ch is provided with a flow path communicating with the container Ch and a pressure gauge P that measures the atmospheric pressure inside the container Ch. Specifically, as shown in FIG. 1, a pressure measurement hole Hp is opened in the right back cover 8R, and an air supply hole Ha is opened in the left back cover 8L. As shown in FIGS. 3, 4, and 6, a pressure gauge P is connected to the pressure measurement hole Hp. In addition, the air supply hole Ha includes a compressor C that allows gas such as air to flow into the container Ch through a flow path, a valve B that adjusts the amount of gas flowing into the container Ch, and a valve B that controls the flow of gas into the container Ch. A flow meter F for measuring the amount is provided. In this embodiment, connecting devices in the flow path, a thermometer for calculating the influence of heat, and the like are not shown.

In the airtightness test device 1, the air pressure inside the container Ch measured by the pressure gauge P is kept constant for a predetermined period of time with the door body 20 placed in a sealed position to form an airtight space S as shown in FIGS. 2 to 6. Gas is allowed to flow into the container Ch from the compressor C while adjusting the valve B so that Then, based on the inflow amount measured by the flowmeter F within a predetermined period of time, the amount of gas leaking from the sealed portion of the opening 2a by the door body 20 is measured. Furthermore, it is determined whether the measured gas leakage amount is below the allowable leakage degree of the airtight door.

According to the airtightness test device 1 according to the present embodiment, an airtightness test can be performed using the self-supporting frame 2 before installing the door body 20 of the airtight door in a building or the like. Therefore, even before a building or the like is actually constructed, it is possible to experimentally or preliminarily measure the airtight performance of the airtight door.

Furthermore, using the airtightness test device 1, an excitation experiment can be performed to measure airtightness performance after an earthquake occurs. Specifically, the airtightness test device 1 is placed on a vibrator, and the frame 2 and the door body 20 are vibrated with the vibrator while the door body 20 is placed in the open position of the frame 2. Thereafter, the door body 20 is moved to the sealed position to form an airtight space S, and the compressor C causes gas to flow into the container Ch so that the pressure inside the container Ch as measured by the pressure gauge P remains constant for a predetermined period of time. . Then, based on the inflow amount measured by the flowmeter F within a predetermined period of time, the amount of gas leaking from the sealed portion of the opening 2a by the door body 20 is measured. This makes it possible to measure the influence of vibrations applied by the vibration device on the airtight door.

As described above, when using the airtightness test device 1 according to the present embodiment, the self-supporting frame 2 can be placed on the vibration device, so the airtightness of the airtightness test device 1 (airtight door) after an earthquake occurs. This makes it possible to measure performance in a simulated manner.

1 Airtightness test device 2 Frame
2a Opening 2p Packing
3a Base frame 3b Vertical frame
3c Horizontal frame 3d Opening vertical frame
3e Opening horizontal frame 3f Connecting frame
3g First reinforcement frame 3h Second reinforcement frame 3m Central frame 4 Bracing
5 Cover member 6U Top lid
6D Bottom lid 7R Right side lid
7L Left side cover 8R Right back cover
8L Left rear cover 11 Guide rail
11a Groove shape 13a Open side protrusion
13b Closed side protrusion 20 Door body
25U Open side rotation axis 25D Closed side rotation axis
26U Opening side guide roller 26D Closing side guide roller 27 Auxiliary roller 30L Left side door pulley
30R Right door pulley Ch Container
S Airtight space M Electric winch
H Manual winch Ha Air supply hole
Hp Pressure measurement hole P1 First fixed pulley
P2 Second fixed pulley P3 Third fixed pulley
P4 Fourth fixed pulley C Compressor
B Valve F Flowmeter
P Pressure gauge r Rope

Claims (3)

a self-supporting frame body having an opening; and a frame body provided in the frame body so as to be displaceable between an open position in which the opening part is opened and a closed position in which the opening part is sealed from one side of the frame body. an airtightness test device configured as a simulated door configured to be self-supporting and capable of being placed on an excitation device, and measuring the airtightness performance of the door body at the opening. And,
The frame is provided with a container that seals the opening from the other side of the frame and forms an airtight space,
The container is provided with a flow path communicating with the container and a pressure gauge that measures the atmospheric pressure inside the container,
The flow path is provided with a compressor that causes gas to flow into the container, and a flow meter that measures the amount of gas flowing into the container,
With the door body placed in a sealed position,
The compressor causes the gas to flow into the container so that the pressure inside the container as measured by the pressure gauge remains constant for a predetermined period of time,
Measuring the amount of gas leaking from the sealed portion of the opening by the door body based on the inflow amount measured by the flow meter within the predetermined time ;
The frame body is provided with a pair of guide rails near the opening,
The pair of guide rails are provided along the vertical direction in the frame,
The door body is provided to be movable up and down by sliding between the open position and the closed position along the pair of guide rails,
the opening is sealed by lowering the door body;
An airtightness testing device, wherein a packing is provided on one of the periphery of the opening and the peripheral edge of the door body, the packing coming into contact with the other when the door body seals the opening. A guide roller is provided on the side of the pair of guide rails in the door main body, and is rotatable inside the guide rail around an axis extending to the side of the guide rail ,
When the door body seals the opening, the guide rail guides the guide roller to displace the door body toward the frame, so that the other presses the packing. The airtightness test device according to item 1. a self-supporting frame body having an opening; and a frame body provided in the frame body so as to be displaceable between an open position in which the opening part is opened and a closed position in which the opening part is sealed from one side of the frame body. An airtightness test method for measuring the airtightness performance of the door body at the opening using a simulated door that is configured to be self-supporting and can be placed on an excitation device. And,
The frame body is provided with a pair of guide rails near the opening,
The pair of guide rails are provided along the vertical direction in the frame,
The door body is provided to be movable up and down by sliding between the open position and the closed position along the pair of guide rails,
the opening is sealed by lowering the door body;
A packing is provided on one of the periphery of the opening and the peripheral edge of the door body, the packing coming into contact with the other when the door body seals the opening;
A container that seals the opening and forms an airtight space is provided on the other side of the frame,
The container is provided with a flow path communicating with the container and a pressure gauge for measuring the atmospheric pressure inside the container,
A compressor that causes gas to flow into the container, and a flow meter that measures the amount of gas flowing into the container are provided in the flow path,
With the door body placed in the sealed position,
The compressor causes the gas to flow into the container so that the pressure inside the container as measured by the pressure gauge remains constant for a predetermined period of time,
Measuring the amount of gas leaking from the sealed portion of the opening by the door body based on the inflow amount measured by the flow meter within the predetermined time ;
After placing the frame body and the door body on a vibration device with the door body placed in an open position and vibrating with the vibration device, displacing the door body to a closed position,
The compressor causes the gas to flow into the container so that the pressure inside the container as measured by the pressure gauge remains constant for a predetermined period of time,
An airtightness test method that measures an amount of gas leaking from a sealed portion of the opening by the door body based on an inflow amount measured by the flowmeter within the predetermined time.

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