JP2018003281A - Pressure adjustment chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure adjustment chamber of a simple structure that readily seals an indoor space air-tightly.SOLUTION: A pressure adjustment chamber includes a chamber, a seal part 3 disposed around an opening 22, a door 4 movable among an open position, a closed position and an air-tightly sealed position, a first slide mechanism 5 for moving the door 4 in a first direction along a route connecting the open position and the closed position, a second slide mechanism 6 for moving the door 4 in a second direction B along a route connecting the closed position and the air-tightly sealed position, and a guide rail 7 for guiding the door 4. The guide rail 7 includes a first guide part formed in the first direction and guiding the door 4 in the first direction, and a second guide part formed to protrude in the second direction B and guiding the door 4 in the second direction to make the door adhere closely with the seal part 3. The door 4 adhered closely with the seal part 3 compresses the seal part 3 due to a pressure change at a time of pressure variation.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pressure regulation room in which the interior of a room is transformed.

  In the pressure regulation room as described above, indoor sealing is an essential requirement. Many doors used in the pressure adjustment room are hinge-type doors, and the sealing member provided around the opening portion presses the sealing member to close the room. However, with a hinged door, space is required in the direction in which the door opens, so that the space cannot be effectively used. On the other hand, as disclosed in Patent Document 1, for example, a pressure adjustment room using a sliding door is already known.

  Patent Document 1 discloses a seal body embedded around the entrance of a chamber, a press base that pushes the seal body from the inside of the chamber to the outside, and a plurality of eccentricities that move the press base from the inside of the chamber to the outside by rotational movement. A cam and an operation lever for operating the plurality of eccentric cams are provided, and the seal body can be extended to the outside of the chamber by operating the operation lever. In Patent Document 1, when the door slides and is positioned at the front position of the entrance / exit frame, the door and the seal body are pressed against each other by operating the operation lever and extending the seal body in the direction of the door. Plays.

Japanese Utility Model Publication No. 63-000262

  According to Patent Document 1, since a sliding door is used, a space is not required in the opening direction like a hinged door, and the space can be effectively used. However, according to Patent Document 1, it takes time and effort to operate the operation lever in order to seal the room, and the structure is complicated.

  Therefore, an object of the present invention is to provide a pressure adjustment room that has a simple structure and can easily achieve indoor sealing.

  The characteristic configuration of the pressure adjustment room according to the present disclosure is a pressure adjustment room in which the inside of the chamber is transformed, and a seal portion disposed around the opening of the chamber and an open state in which the opening is opened A door that is movable between a position, a closed position that closes the opening, and a sealed position that tightly contacts the seal and seals the chamber; and the open position and the closed position. A first slide mechanism that moves the door in a first direction along a path connecting the two, and a second slide that moves the door in a second direction along the path connecting the closed position and the sealed position. A slide mechanism, and a guide mechanism for guiding the movement of the door, the guide mechanism being formed along the first direction and a first guide portion for guiding the door in the first direction; The door is formed so as to protrude in the second direction. A second guide portion that is guided in the second direction and is in close contact with the seal portion, and the door that is in close contact with the seal portion is configured to press the seal portion due to a pressure change during voltage transformation. There is in point.

  According to this configuration, the door opens the opening of the chamber in the open position, closes the opening of the chamber in the closed position, and closes the chamber in close contact with the seal portion in the sealed position. The door is guided in the first direction by the first guide portion of the guide mechanism and moved between the open position and the closed position by the first slide mechanism. The door is guided in the second direction by the second guide portion of the guide mechanism and moved by the second slide mechanism so as to be in close contact with the seal portion. Further, the door presses the seal portion due to a pressure change during transformation. And close the chamber. That is, the guide mechanism that guides the door in the first direction and the second direction causes the door to adhere to the seal portion by a series of flows that slide the door, and transforms the interior of the chamber to press the door against the seal portion. Thus, the chamber can be easily sealed. Therefore, the pressure adjustment room according to the present configuration has a simple structure and can easily seal the room.

  The door includes a guide roller supported to be suspended and capable of contacting the first guide portion and the second guide portion, and the guide mechanism is opposite to the seal portion with the guide roller interposed therebetween. It is preferable that a guide wall is provided at a side position, and the guide roller is configured to roll along the guide wall while being in contact with the guide wall.

  According to this configuration, the guide roller can roll while being in contact with the guide wall located on the side opposite to the seal portion with the guide roller interposed therebetween. That is, it is possible to roll the guide roller in a state where the seal portion and the door are separated from each other. The door having the guide roller is supported by being suspended. Therefore, the weight of the door does not hinder the rolling of the guide roller. As described above, the pressure adjusting room according to the present configuration smoothly moves the door in the first direction and the second direction without receiving a frictional force between the seal portion and the door by rolling of the guide roller. Can do.

  The first guide part includes a first guide wall formed along the first direction, and the second guide part includes a second guide wall formed inclined in the second direction. It is suitable to have.

  According to this configuration, the door is reliably guided in the first direction by the guide roller rolling along the first guide wall. In addition, the door is reliably guided in the second direction by the guide roller rolling along the second guide wall. That is, the pressure adjustment room according to this configuration can reliably guide the door in the first direction and the second direction, and as a result, an accurate operation of the door can be realized.

  In addition, the door includes an inner door disposed inside the chamber and an outer door disposed outside the chamber, and the inner door and the outer door are the second doors during transformation. It is preferable to be configured to move to the same side when moving in the direction.

  According to this configuration, when pressure is applied from the inside of the chamber to the outside during pressurization of the chamber, both the inner door and the outer door move outward in the second direction, and only the inner door seals. Press the area to seal the chamber. On the other hand, when pressure from the outside to the inside of the chamber acts when the chamber is depressurized, only the outer door presses the seal part while both the inner door and the outer door move inward in the second direction. The chamber is sealed. That is, the pressure adjustment room according to this configuration can reliably seal the chamber even when the chamber is pressurized and depressurized.

  In addition, it is preferable that the pressure adjustment room according to the present disclosure further includes a restraining member that covers the outer periphery of the opening.

  When the chamber is transformed, pressure is applied to the entire chamber, but in particular, stress is concentrated in the opening portion, so that the chamber is easily deformed. According to this configuration, since the outer periphery of the opening is restrained by the restraining member, deformation of the chamber opening is restricted. Therefore, the pressure adjustment room according to the present configuration can prevent deformation of the opening due to stress concentration, and thus can prevent damage to the pressure adjustment room due to the deformation.

  The pressure regulation room according to the present disclosure is preferably configured to pressurize the room by filling the room with oxygen and nitrogen using a separately provided cylinder.

  According to this configuration, the interior of the room can be pressurized and the amount of oxygen and the amount of nitrogen in the room can be adjusted as appropriate. That is, when the pressure adjustment room is used for treatment such as rapid recovery of the body, the oxygen concentration in the room can be increased. Thereby, the oxygen concentration in the user's body can be increased to promote metabolism, and effects such as fatigue recovery can be obtained. Further, it is possible to pressurize the room with the same concentration as the oxygen concentration and nitrogen concentration contained in the atmosphere. Thereby, the muscular strength training etc. by the low load under pressure can be performed, and physical training can be performed efficiently. That is, the pressure adjustment room according to this configuration can be suitably used for treatment or physical training.

  Further features and advantages of the technology according to the present disclosure will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

It is a perspective view of the pressure regulation room concerning this embodiment. It is the figure which looked at the same pressure adjustment room from the room inner side. It is III-III sectional drawing in FIG. It is explanatory drawing of the guide mechanism which concerns on this embodiment. It is principal part sectional drawing of the pressure regulation room which concerns on 2nd embodiment. It is sectional drawing of the door which concerns on 2nd embodiment.

  Hereinafter, the pressure regulation room 1 according to the present embodiment will be described with reference to the drawings.

[Configuration of Pressure Adjustment Room According to First Embodiment]
As shown in FIG. 1 and FIG. 2, the pressure adjustment room 1 opens the chamber 2 that can accommodate the user, the seal portion 3 disposed around the opening 22 of the chamber 2, and the opening 22. It can move between a position OP in the open state, a position CP in the closed state that closes the opening 22, and a position SP (see also FIGS. 3 and 4) that tightly contacts the seal portion 3 and seals the chamber 2. And a door 4. The pressure adjustment room 1 is configured such that the inside of the room 2 can be transformed.

  The chamber 2 has a main body 21 and an opening 22 formed in the main body 21. The main body 21 is formed in a cylindrical box shape so that the pressure inside the chamber 2 at the time of voltage transformation is evenly distributed over the entire chamber 2. The pressure adjustment room 1 further includes a restraining member 8 that covers the outer periphery of the opening 22. The restraining member 8 is formed in a band shape. In the present embodiment, a pair of such restraining members 8 are provided. Each of the pair of restraining members 8 is provided over the entire outer periphery of the chamber 2 along both sides of the opening 22. In addition, auxiliary members that are disposed along both the upper and lower edges of the opening 22 and that stretch the pair of restraining members 8 are provided. By these restraining members 8 and the restraining members, it is possible to restrict the deformation of the opening 22 that is easily deformed as a result of receiving stress concentration during the transformation of the chamber 2. Therefore, it is possible to prevent the pressure adjustment room 1 from being damaged due to the deformation of the opening 22 at the time of transformation. As the restraining member 8, an annular member such as a scissors can be used. The restraining member 8 is preferably made of metal. Thereby, durability of the pressure regulation room 1 at the time of voltage transformation improves.

  The opening 22 is formed in a size that allows a user of the pressure adjustment room 1 to enter and exit the chamber 2. The opening 22 is formed in a rectangular shape including upper and lower sides and both sides. Specifically, since the opening 22 is formed in the cylindrical box-shaped main body 21, both sides are formed in a rectangular shape that is curved outward of the chamber 2. When the opening 22 is blocked by the door 4, the pressure adjustment room 1 is closed. When the opening 22 is not closed by the door 4 and is open, the pressure adjustment room 1 is in an open state. In FIG. 2, for convenience of visual recognition, the shape of the opening portion 22 is not shown, and the vicinity of the upper portion and the lower portion of the opening portion 22 is shown in a vertical state.

  As shown in FIG. 2, the seal portion 3 is disposed around the opening 22. In the present embodiment, the seal portion 3 is formed over the entire circumference of the opening 22 inside the chamber 2. An elastic member that expands and contracts by a predetermined contraction margin when pressed is used for the seal portion 3. For example, natural rubber or synthetic rubber can be suitably used as the seal portion 3.

  The door 4 is attached to the inside of the chamber 2 and is configured to be movable between an open position OP that opens the opening 22 and a closed position CP that closes the opening 22. In this embodiment, the door 4 is a slide type, and is provided with an outer handle 42O on the outer side and an inner handle 42I on the inner side (see FIGS. 1 and 2). Since the door 4 closes the opening 22, the door 4 is formed in a rectangular shape whose center is curved outward corresponding to the shape of the opening 22. The door 4 is formed to be sufficiently larger than the opening 22. Here, the “closed state” refers to a state in which the door 4 overlaps the entire opening 22. Therefore, since the door 4 is formed to be sufficiently larger than the opening 22, the door 4 can move to some extent while maintaining the closed state.

  As shown in FIG. 2, the pressure adjustment room 1 includes a first slide mechanism 5 that moves the door 4 in a first direction A along a path that connects the position OP in the open state and the position CP in the closed state. . Here, the first direction A is a direction indicated by A in FIG. In the following description, the side in which the door 4 is closed in the first direction A is referred to as “first direction closing side A1”, and the side in which the door 4 is opened is referred to as “first direction opening side A2”. The first slide mechanism 5 supports the door 4 inside the chamber 2, and can move the door 4 along the first direction A. The first slide mechanism 5 includes a slide rail 51 that extends along the first direction A, and a slide body 52 that is fitted around the slide rail 51 and moves along the slide rail 51. . The slide rail 51 is attached to the main body 21 via an attachment bracket 56 (see FIG. 3). Although not shown, a plurality of freely rollable balls are interposed between the slide rail 51 and the slide body 52. The balls are configured to circulate inside the slide body while rolling along the slide rail 51 inside the slide body 52. For this reason, the first slide mechanism 5 is configured such that the slide body 52 can smoothly move along the slide rail 51 by the rolling of balls inside the slide body 52. In the present embodiment, a pair of slide bodies 52 are provided, and these slide bodies 52 support the upper portion of the door 4 and both end portions in the first direction A. That is, in this embodiment, since the pair of slide bodies 52 supports the door 4 at both ends, the posture of the door 4 can be maintained in parallel with the slide rail 51. For this reason, the door 4 does not tilt with respect to the first direction A, and the first slide mechanism 5 can smoothly move the door 4 along the first direction A.

  As shown in FIG. 3, the pressure adjustment room 1 includes a second slide mechanism 6 that moves the door 4 in the second direction B along the path connecting the closed position CP and the sealed position SP. . Here, the second direction B is a direction indicated by B in FIG. The second direction B refers to a direction extending in the radial direction from the center of the internal space of the chamber 2. Hereinafter, the center side of the internal space of the chamber 2 in the second direction B will be referred to as “second direction inner side B2”, and the side outward from the center of the internal space of the chamber 2 will be described as “second direction outer side B1”. In the present embodiment, the second slide mechanism 6 is provided integrally with the first slide mechanism 5. The second slide mechanism 6 supports the door 4 by suspending it directly. The first slide mechanism 5 has a connecting shaft 53 and is connected to the second slide mechanism 6 by the connecting shaft 53. The connecting shaft 53 is formed so as to protrude from the surface of the slide body 52 on the second direction inner side B2 to the second direction inner side B2. The second slide mechanism 6 includes a slide cylinder portion 61 that is extrapolated to the connecting shaft 53 and is slidable along the connecting shaft 53. A stopper washer 54 is provided at the tip of the connecting shaft 53 so that the slide cylinder portion 61 does not slide along the connecting shaft 53 and disengage from the second direction inner side B2. The slide cylinder portion 61 is connected to the intermediate plate 62 at the end of the second direction outer side B1. As shown in FIG. 2, the intermediate plate 62 is provided so as to protrude downward with respect to the slide cylinder portion 61. A door connecting portion 63 is provided at the lower portion of the middle plate 62. In the present embodiment, as the door connecting portion 63, three bolts penetrating the intermediate plate 62 are shown as an example. As shown in FIG. 3, the door connecting portion 63 is connected to the door 4 at the end of the second direction outer side B1. When the slide cylinder portion 61 slides in the second direction B along the connection shaft 53 of the first slide mechanism 5, the second slide mechanism 6 is connected to the middle plate 62 and the door connected together with the slide cylinder portion 61. The part 63 and the door 4 are also configured to slide in the second direction B. When the second slide mechanism 6 slides outward in the second direction B <b> 1, the first slide mechanism 5 is positioned between the intermediate plate 62 so that the intermediate plate 62 does not come into strong contact with the slide body 52 of the first slide mechanism 5. In addition, a buffer plate 55 is provided at the base end of the connecting shaft 53. FIG. 3 shows a case where the door 4 is in a sealed position SP described later. At this time, the door 4 and the seal portion 3 are in contact with each other, but the door 4 is not in the sealed position SP. Sometimes, the second slide mechanism 6 is slid to the second direction inner side B <b> 2 by the dead weight of the door 4. This is because the weight of the door 4 is applied to the second direction inner side B2 due to the door 4 being formed in a curved shape that is convex toward the second direction outer side B1. That is, in that case, the door 4 is moved in the second direction inner side B2 by the second slide mechanism 6, and the door 4 and the seal portion 3 are in a non-contact state.

  The door 4 described above is suspended and supported by the first slide mechanism 5 and the second slide mechanism 6 and has a guide roller 41 at the lower part inside the chamber 2. In the present embodiment, the pressure adjustment room 1 further includes a guide rail 7 as a guide mechanism for guiding the door 4. As shown in FIG. 2, the guide rail 7 is provided below the opening 22 inside the chamber 2. The guide rail 7 is provided along the first direction A, and as shown in FIGS. 3 and 4, only the upper part is open. As shown in FIG. 4, the guide rail 7 is formed along the first direction A and the first guide portion 71 that guides the door 4 in the first direction A, and protrudes in the second direction B. And a second guide portion 72 that guides the door 4 in the second direction B and closely contacts the seal portion 3. Furthermore, in this embodiment, as shown in FIG. 3, the guide rail 7 has a guide wall 73 at a position opposite to the seal portion 3 with the guide roller 41 interposed therebetween. In the present embodiment, as shown in FIG. 3, the guide wall 73 is formed on the inner side B <b> 2 in the second direction of the guide rail 7. The guide wall 73 is formed perpendicular to the bottom surface of the guide rail 7. The guide roller 41 has a rotation axis perpendicular to the bottom surface of the guide rail 7. For this reason, the guide roller 41 is configured to roll along the guide wall 73 while being in contact with the guide wall 73. As described above, the door 4 is urged toward the second direction inner side B2 by its own weight. Therefore, the guide roller 41 provided at the lower portion of the door 4 is also always urged toward the second direction inner side B2. The guide roller 41 is always in contact with the guide wall 73 formed on the second direction inner side B2 of the guide rail 7 by being urged toward the second direction inner side B2. Therefore, the guide roller 41 rolls along the guide wall 73. It is possible to move. As a result, when the door 4 is in the open position OP, the door 4 and the seal portion 3 are in a non-contact state, and the door 4 moves smoothly without frictional resistance due to contact with the seal portion 3. can do. Thus, the door 4 having the guide roller 41 is configured to be guided by the guide rail 7.

  As shown in FIG. 4, the first guide portion 71 has a first guide wall 73 </ b> A formed along the first direction A, and the second guide portion 72 is formed inclined to the second direction B. A second guide wall 73B. As shown in FIGS. 4B and 4B, the first guide wall 73 </ b> A is formed on the second direction inner side B <b> 2 in the first guide portion 71. The second guide wall 73 </ b> B is formed in the second direction inner side B <b> 2 in the second guide portion 72. In the present embodiment, the second guide wall 73B is formed to be inclined toward the second direction outer side B1. As described above, since the guide roller 41 is urged toward the inner side B2 in the second direction by the dead weight of the door 4, when passing through the first guide portion 71, the first guide roller 41 is moved along the first guide wall 73A. Roll in direction A. Further, the guide roller 41 rolls along the second guide wall 73B while being pushed into the second direction outer side B1 by the second guide wall 73B when passing through the second guide portion 72. In this embodiment, the guide rail 7 has an outer wall 74 formed perpendicular to the bottom surface of the guide rail 7 on the second direction outer side B1 and the bottom surface of the guide rail 7 at the end on the first direction closed side A1. And a stopper wall 75 formed vertically. The stopper wall 75 restricts the guide roller 41 from moving beyond the stopper wall 75 to the first direction closing side A1.

  Here, FIG. 4 is a diagram illustrating the relationship between the movement of the guide roller 41 and the movements of the second slide mechanism 6 and the door 4. FIGS. 4A and 4A are cross-sectional views of the upper portion of the door 4. 4B and 4B are views of the lower portion of the door 4 as seen from the direction of the rotation axis of the guide roller 41. FIG. FIG. 4A and FIG. 4B are diagrams corresponding to each other. Further, FIG. 4 (a ′) and FIG. 4 (b ′) correspond to each other. When the guide roller 41 is at the position of the first guide portion 71 as shown in FIG. 4B, the door 4 is located at the closed position CP that closes the opening 22 as shown in FIG. At this time, the door 4 and the seal portion 3 are not in contact with each other. When the guide roller 41 is in the position of the second guide portion 72 as shown in FIG. 4 (b ′), the door 4 is in the sealed position SP in contact with the seal portion 3 as shown in FIG. 4 (a ′). Is located.

  The door 4 that is in close contact with the seal portion 3 is configured to press the seal portion 3 by a pressure change at the time of voltage transformation. In the present embodiment, the door 4 is configured to press the seal portion 3 toward the second direction outer side B1 when the inside of the chamber 2 is pressurized. As shown in FIG. 4B ′, when the guide roller 41 is at the position of the second guide portion 72, that is, at a position corresponding to the position SP of the door 4 in the sealed state (see FIG. 4A ′). When the guide roller 41 is positioned, a certain gap G is formed between the outer wall 74 and the guide roller 41. The size of the guide roller 41 with respect to the guide rail 7 is adjusted so that the gap G is larger than the shrinkage allowance of the seal portion 3 when the door 4 presses the seal portion 3 when the inside of the chamber 2 is pressurized. Yes.

[Operation of pressure adjustment room]
Next, the operation of the pressure adjustment room 1 will be described. A user of the pressure adjusting room 1 enters the inside of the chamber 2 through the opening 22 and slides the door 4 at the open position OP to the first direction closing side A1. Since the door 4 is urged toward the inner side B2 in the second direction by its own weight, the guide roller 41 rolls while contacting the first guide wall 73A as shown in FIG. 4B. Thereby, the door 4 moves along the first direction A to the first direction closing side A <b> 1 while being guided by the first guide portion 71.

  When the door 4 is moved along the first direction A and positioned at the position CP in the closed state, the door 4 and the opening 22 are completely overlapped. Since the door 4 is formed to be sufficiently larger than the opening 22, the door 4 can be moved by a predetermined distance while maintaining a position completely overlapping the opening 22, that is, a closed position CP. At this time, the door 4 and the seal part 3 are still in a non-contact state.

  As shown in FIG. 4B ', when the guide roller 41 reaches the second guide portion 72, the guide roller 41 rolls along the second guide wall 73B. Since the second guide wall 73B is formed to be inclined toward the second direction outer side B1, the guide roller 41 is pushed into the second direction outer side B1 by the second guide wall 73B. When the guide roller 41 is pushed into the second direction outer side B1, as shown in FIG. 4 (a '), the second slide mechanism 6 functions, and the door 4 moves to the second direction outer side B1 against its own weight. Moving. Thereby, the door 4 is located at the position SP in the sealed state, and the door 4 and the seal portion 3 are brought into contact with each other. At this time, the door 4 and the seal portion 3 are only in contact with each other, and the seal portion 3 is not pressed by the door 4. Further, a gap G larger than the shrinkage allowance of the seal portion 3 is vacant between the guide roller 41 and the outer wall 74 of the guide rail 7.

  Next, the inside of the chamber 2 is pressurized from the state where the door 4 is positioned at the sealed position SP where the door 4 comes into contact. As shown in FIG. 3, when the inside of the chamber 2 is pressurized, the applied pressure Pi acts on the entire chamber 2. The applied pressure Pi acts toward the second direction outer side B1 to push the door 4 into the second direction outer side B1. Then, the door 4 urged toward the second direction inner side B <b> 2 by its own weight receives the pressure Pi and slides toward the second direction outer side B <b> 1 by the amount of the contraction margin of the seal portion 3. And the door 4 presses the seal | sticker part 3 which was in a contact state toward 2nd direction outer side B1. Thereby, the seal part 3 is pressed and crushed by the door 4. At this time, the door 4 slides in the second direction outer side B1 in order to press the seal portion 3, but before the chamber 2 is pressurized, the guide roller 41 and the guide rail 7 are formed in the lower portion of the door 4. Since a gap G larger than the shrinkage allowance of the seal portion 3 is formed between the outer wall 74 and the outer wall 74 (see FIG. 4B ′), the sliding of the door 4 during pressurization is not hindered. . When the seal portion 3 is pressed and crushed by the door 4, the door 4 and the main body portion 21 of the chamber 2 are firmly sealed, and the air inside the chamber 2 does not leak to the outside. The user of the pressure adjustment room 1 can utilize the pressure adjustment room 1 according to the purpose of use such as treatment and physical training under this pressure.

[Indoor pressure]
The pressure adjustment room 1 in which the inside of the chamber 2 is pressurized has been described above. In the present embodiment, the pressure regulation room 1 is configured to pressurize the room by filling the room with oxygen and nitrogen using a cylinder provided separately. Although not shown, an oxygen cylinder and a nitrogen cylinder are installed outside the chamber 2 of the pressure adjustment room 1. The pressure adjustment room 1 is configured by providing a pipe or the like that communicates an oxygen cylinder and a nitrogen cylinder with the inside of the chamber 2. And the oxygen amount and nitrogen amount inside the chamber 2 are adjusted by manually opening and closing the valves of the oxygen cylinder and the nitrogen cylinder. For this reason, oxygen and nitrogen can be supplied to the inside of the chamber 2 from an oxygen cylinder and a nitrogen cylinder installed outside the chamber 2. In the chamber 2, an oxygen concentration meter, a nitrogen concentration meter, or both an oxygen concentration meter and a nitrogen concentration meter are installed. Thereby, the pressure adjustment room 1 can pressurize the inside of the chamber 2 while adjusting the oxygen concentration and the nitrogen concentration inside the chamber 2. This adjustment may be performed mechanically by automatic control. The oxygen cylinder and the nitrogen cylinder may be installed inside the chamber 2.

  In general, it is already known that high concentrations of oxygen are taken into the body for the purpose of recovery of the body. Further, it is already known that a recovery effect can be obtained by ingestion of oxygen and pressurization in the room. However, excessive intake of oxygen may cause oxygen poisoning and the like, and may adversely affect the human body. Therefore, when the indoor oxygen concentration becomes too high, indoor air may be discharged outside. In this case, the pressurized state in the room cannot be maintained due to the discharge of air. However, in this embodiment, the pressure regulation room 1 is configured to pressurize the interior of the chamber 2 by filling the chamber 2 with not only oxygen but also nitrogen. Therefore, when the oxygen concentration in the chamber 2 becomes too high, even when the air in the chamber 2 is discharged, nitrogen can be simultaneously supplied into the chamber 2 to maintain the pressurized state in the chamber 2. .

[Configuration of Pressure Adjustment Room According to Second Embodiment]
Hereinafter, the pressure adjustment room according to the second embodiment will be described. Note that points that are not particularly described in the second embodiment are the same as those in the first embodiment.

  As shown in FIG. 5A, in the second embodiment, the door 4 includes an inner door 42 disposed inside the chamber 2 and an outer door 43 disposed outside the chamber 2. Yes. That is, the door 4 has a double structure. Each of the inner door 42 and the outer door 43 has the same structure as the door 4 according to the first embodiment. That is, in the second embodiment, the first slide mechanism 5, the second slide mechanism 6, and the guide rail 7 (not shown) as the guide mechanism are provided on both the inside and the outside of the chamber 2. Further, as shown in FIG. 5A, the seal portion 3 is also provided on both the inside and the outside of the chamber 2. That is, the inner seal portion 3I is disposed around the opening 22 inside the chamber 2. An outer seal portion 30 is disposed around the opening 22 outside the chamber 2. Note that, during normal pressure, the inner door 42 is configured to be urged toward the second direction inner side B2 by its own weight so as not to press the inner seal portion 3I. Similarly, with respect to the outer door 43, its own weight acts on the second direction inner side B2. Therefore, the outer door 43 is provided with a coil spring 57 that urges the outer door 43 toward the second direction outer side B <b> 1 so that the outer door 43 does not press the outer seal portion 3 </ b> O at normal pressure. The coil spring 57 urges the outer door 43 toward the second direction outer side B1 against the dead weight of the outer door 43, so that the outer door 43 does not press the outer seal portion 3O at normal pressure. Yes. In the present embodiment, the coil spring 57 is provided between the intermediate plate 62 and the buffer plate 55 while being externally fitted to the connecting shaft 53. Further, a compression coil spring is used as such a coil spring 57. The coil spring 57 may be omitted, and the second slide mechanism 6 that suspends and supports the outer door 43 may be inclined below the second direction outer side B1. In that case, the outer door 43 is urged to the second direction outer side B1 by its own weight.

  The inner door 42 and the outer door 43 are configured to move to the same side when moving in the second direction B during transformation. In the present embodiment, the inner door 42 and the outer door 43 are configured to move to the second direction outer side B1 when the inside of the chamber 2 is pressurized. As shown in FIG. 5B, when the chamber 2 is pressurized, the applied pressure Pi acts toward the second direction outer side B1. The applied pressure Pi acts to push the inner door 42 and the outer door 43 into the second direction outer side B1, and the inner door 42 and the outer door 43 slide in the second direction outer side B1. Therefore, the inner seal portion 3I is pressed and crushed by the inner door 42 against the second direction outer side B1. Thereby, the inner side door 42 and the main-body part 21 of the chamber 2 are sealed firmly, and the air inside the chamber 2 does not leak outside.

  In the present embodiment, the inner door 42 and the outer door 43 are configured to move to the second direction inner side B2 when the chamber 2 is depressurized. As shown in FIG. 5C, when the chamber 2 is depressurized, a depressurizing force Pd acts toward the second direction inner side B2. The decompression force Pd acts so as to pull the inner door 42 and the outer door 43 in the second direction inner side B2, and the inner door 42 and the outer door 43 slide in the second direction inner side B2. Therefore, the outer seal portion 30 is pressed and crushed by the outer door 43 against the second direction inner side B2. Thereby, the outer door 43 and the main body 21 of the chamber 2 are firmly sealed, and air outside the chamber 2 does not enter the inside.

  As described above, the pressure adjustment room according to the second embodiment can reliably seal the chamber 2 even when the inside of the chamber 2 is pressurized and when the pressure is reduced. Here, since 2nd embodiment is comprised by the double door, the inner side door 42 and the outer side door 43 are arrange | positioned in the state which mutually opposed on both sides of the seal | sticker part 3 and the main-body part 21. FIG. Therefore, the handle 23 which protrudes like 1st embodiment cannot be provided in the surface of the inner side door 42 and the outer side door 43 on the opposite side. Therefore, as shown in FIG. 6, in 2nd embodiment, the recessed part 44 curved to the opposite side to the said opposing side is provided in the mutually opposing surface in the inner side door 42 and the outer side door 43. As shown in FIG. That is, an inner recess 44I is provided on the surface of the inner door 42 on the second direction outer side B1. An outer recess 44 </ b> O is provided on the surface of the outer door 43 on the second direction inner side B <b> 2. An inner recess handle 45I for opening and closing the inner door 42 is attached to the inner recess 44I. An outer recess handle 45O for opening and closing the outer door 43 is attached to the outer recess 44O. With this configuration, the inner door 42 and the outer door 43 can be slid without causing the handle and the door to interfere with each other. Various types such as a lever type and a knob type can be used as the inner recess handle 45I or the outer recess handle 45O. Moreover, the shape of the recessed part 44 can also be made into a shape which a user can grasp easily with a hand. In this case, the recess 44 may not be provided with a handle.

[Other Embodiments]
(1) In each of the embodiments described above, the first slide mechanism 5 includes the slide rail 51 extending along the first direction A, and the slide body 52 that is extrapolated to the slide rail 51 and moves along the slide rail 51. And a plurality of freely rollable balls interposed between the slide rail 51 and the slide body 52 while rolling along the slide rail 51 inside the slide body 52. The example configured to circulate inside the slide body has been described. However, the first slide mechanism 5 is not limited to such a configuration, and may be configured to move the door 4 in the first direction A. For example, the first slide mechanism 5 may include a rail and a roller that rolls on the rail.

(2) In the first embodiment, the example in which the door 4 is configured to be attached to the inside of the chamber 2 has been described. However, the door 4 may be attached to the outside of the chamber 2. In this case, the first slide mechanism 5, the second slide mechanism 6, the guide rail 7 as the guide mechanism, and the seal portion 3 are provided outside the chamber 2. And the door 4 presses the seal | sticker part 3 toward 2nd direction inner side B2 at the time of pressure reduction of the chamber 2. FIG. According to this structure, the pressure regulation room 1 can be used suitably for pressure reduction.

(3) In each of the above embodiments, the example in which the guide mechanism is configured as the guide rail 7 has been described. However, the guide mechanism is not limited to such a configuration, and the guide rail 7 may not be provided. In this case, a protrusion or the like that pushes the guide roller 41 moving in the first direction A in the second direction B can be provided as a guide mechanism. Specifically, the protrusion is disposed at a position slightly shifted inward in the second direction B <b> 2 from the track on which the guide roller 41 moves along the first direction A. With such a configuration, the guide roller 41 moving in the first direction A comes into contact with the protruding portion, so that the guide roller 41 is pushed outward in the second direction B1. Therefore, the door 4 can be guided in the second direction B by the protrusion.

(4) In each of the above embodiments, the example in which the door 4 is supported by being suspended has been described. However, the configuration is not limited to such a configuration, and the door 4 may not be supported by being suspended. In this case, it is possible to provide a free bearing instead of the guide roller 41 having the rotation shaft so that the free bearing rolls on the bottom surface of the guide rail 7. According to this structure, since the free bearing can roll on the guide rail 7 in the first direction A and the second direction B, the guide rail 7 guides the door 4 in the first direction A and the second direction B. be able to. In addition, according to this configuration, since the door 4 is not supported by being suspended, the burden on the first slide mechanism 5 and the second slide mechanism 6 that support the door 4 can be reduced.

(5) In each of the above embodiments, the door 4 has been described as an example in which the center portion is formed in a rectangular shape curved outward. However, the present invention is not limited to such a configuration, and when the wall in which the opening 22 in the main body 21 of the chamber 2 is formed is flat, the door 4 may be formed in a flat plate shape. In this case, the dead weight of the door 4 acts vertically downward, and at normal pressure, the door 4 does not slide to the inside B2 in the second direction due to the dead weight of the door 4. Therefore, in this configuration, the first slide mechanism 5 or the second slide mechanism 6 is provided with a spring body that biases the door 4 toward the second direction inner side B2. For example, when a compression coil spring is used as the spring body, a compression coil spring is externally fitted to the connecting shaft 53 of the first slide mechanism 5, and the buffer plate of the first slide mechanism 5 is fitted to the end of the compression coil spring in the second direction outer side B <b> 1. 55 is in contact, and the end of the second direction inner side B <b> 2 of the compression coil spring is arranged so as to contact the middle plate 62 of the second slide mechanism 6. According to this configuration, at the time of normal pressure, the door 4 can be urged to the second direction inner side B2 by the compression coil spring, and can be slid to the second direction inner side B2. In this case, when the pressure Pi at the time of pressurization becomes larger than the pushing force of the compression coil spring, the door 4 slides to the second direction outer side B1 and presses the seal portion 3. Various springs such as a plate spring, a torsion coil spring, and a tension coil spring can be used as the spring body.

(6) In addition, when the door 4 is located at the position SP in the sealed state, the door 4 may be fastened by a fastener such as a clamp. According to this configuration, the movement of the door 4 in the first direction A can be restricted so that the door 4 does not move in the first direction A when the chamber 2 is transformed. Therefore, the chamber 2 can be safely transformed.

(7) In addition, a safety valve that opens in an emergency may be provided in the main body 21 of the chamber 2. According to this configuration, in an emergency such as when the user's condition deteriorates during use of the pressure adjustment room 1, the safety valve is opened so that the inside of the chamber 2 communicates with the outside. Can be under normal pressure.

(8) The above embodiments are merely examples, and the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. The above embodiments can be combined within a range where no contradiction occurs.

1: Pressure adjustment room 2: Chamber 3: Seal part 3 I: Inner seal part 3 O: Outer seal part 4: Door 5: First slide mechanism 6: Second slide mechanism 7: Guide rail (guide mechanism)
8: Restraining member 14: Sealing body 22: Opening portion 41: Guide roller 42: Inner door 43: Outer door 71: First guide portion 72: Second guide portion 73: Guide wall 73A: First guide wall 73B: Second Guide wall A: First direction A1: First direction closed side A2: First direction open side B: Second direction B1: Second direction outer side B2: Second direction inner side

Claims (6)

A pressure regulation room where the interior of the room is transformed,
A sealing portion disposed around the opening of the chamber; an open position that opens the opening; a closed position that closes the opening; and a sealed state that seals the chamber in close contact with the sealing portion A first movable mechanism for moving the door in a first direction along a path connecting the open position and the closed position, and the closed position. And a second slide mechanism for moving the door in a second direction along a path connecting the sealed position and a guide mechanism for guiding the movement of the door,
The guide mechanism is formed along the first direction, and the first guide portion guides the door in the first direction. The guide mechanism protrudes in the second direction, and the door is formed in the second direction. A second guide portion that guides to the seal portion and closely contacts the seal portion,
A pressure adjustment room configured such that the door that is in close contact with the seal portion presses the seal portion due to a pressure change during transformation. The door includes a guide roller that is supported by being suspended and is capable of contacting the first guide portion and the second guide portion,
The guide mechanism has a guide wall at a position opposite to the seal portion with the guide roller interposed therebetween,
The pressure adjustment room according to claim 1, wherein the guide roller is configured to roll along the guide wall while being in contact with the guide wall. The first guide portion has a first guide wall formed along the first direction,
The pressure adjustment room according to claim 2, wherein the second guide portion has a second guide wall formed to be inclined in the second direction. The door has an inner door disposed inside the chamber and an outer door disposed outside the chamber,
The pressure regulation room according to any one of claims 1 to 3, wherein the inner door and the outer door are configured to move to the same side when moving in the second direction during transformation. .   The pressure regulation room according to any one of claims 1 to 4, further comprising a restraining member that covers an outer periphery of the opening.   The pressure regulation room according to any one of claims 1 to 5, wherein the room is pressurized by filling the room with oxygen and nitrogen using a separately provided cylinder.

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