JPH0795113B2 - Quarantine access mechanism - Google Patents

Description

TECHNICAL FIELD The present invention relates to an isolation entrance / exit mechanism for a specific atmosphere chamber, and more particularly to an entrance / exit mechanism for entering / leaving a suit worn in a contaminated area in nuclear facilities and the like.

[Prior Art] At nuclear facilities and the like, particular attention is paid to entry and exit of a contaminated area that is a specific atmosphere area. In case of entering the room, wear an airline suit, and in case of leaving the room, one or three rooms with low pollution level are attached. While gradually decreasing the pollution level, measure the pollution level,
Leave the room after confirming that the contamination has been removed. This is a common method of entering and leaving a contaminated room,
In particular, it is necessary to prevent the spread of pollution due to exit.

[Problems to be Solved by the Invention] In the prior art as described above, when leaving the room, it is necessary to provide about 1 to 3 rooms with a low contamination level, and therefore it is necessary to secure a wider space. The pollution level is low, but some rooms require pollution control according to the pollution area. In addition, there is a problem that it takes a lot of time to leave the room because there is a case where the decontamination is checked and measured while the decontamination is performed in the room where the pollution level is low. This also leads to a reduction in the efficiency of the work of repeatedly entering and leaving the isolation room.

There is also a problem that the contaminated work clothes or the disposable materials, that is, the contaminated wastes, are removed every time the worker leaves.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks of the prior art, and to provide an isolation entrance / exit mechanism capable of efficient entrance / exit without a spare room for entering / exiting a specific atmosphere area.

[Means for Solving Problems] That is, in order to solve the above-mentioned problems, the present invention provides a mechanism for moving in and out of an airline suit 16 worn in a specific atmosphere area from a non-specific atmosphere area in an isolated state. The first lid frame 10 provided around the entrance 50 of the side wall 15 for partitioning the specific atmosphere area and the non-specific atmosphere area, and the first lid frame 10
First lid 11 that is detachably fitted to the non-specific atmosphere area side, and is provided around the entrance and exit of the airline suit 16 in the specific atmosphere area, and the first lid frame is provided from the specific atmosphere area side. A second lid frame 12 abutting on 10, and the second lid frame 12 is detachably fitted from the outside of the airline suit 16 to the first lid 11 from the specific atmosphere area side. The second lid frame 12 abutted on the first lid frame 10 is attached to the first lid frame 10 so as to penetrate therethrough.
The first screw 5 which is screwed into the 12 screw holes and the second lid 13 are attached so as to penetrate therethrough, and both ends are respectively the first lid.
11 and the second screw 8 screwed into the screw hole of the second lid frame 12
There is provided an isolation entry / exit mechanism comprising:

In this case, the first and second drivers 4 and 7 for rotating the first and second screws 5 and 8 from the non-specific atmosphere area side through the screw holes of the first lid 11 are installed. You should be prepared. Further, the first and second drivers 4, 7
May be rotated in opposite directions synchronously by the gears 2, 3 meshing with each other.

[Operation] In the isolation / withdrawal mechanism according to the present invention, the airline suit
The second lid 13 is fitted to the second lid frame 12 provided on the 16, and the inside of the airline suit 16 is kept airtight with the second lid 13 fixed to one end of the second screw 8. People can enter and work. Further, at this time, the first lid 11 is fitted from the non-specific atmosphere area side to the first lid frame 10 provided at the entrance 50 of the side wall 15 partitioning the specific atmosphere area, and the first screw 5 is attached thereto.
Fix it on one end side of. As a result, the specific atmosphere area is airtightly partitioned from the non-specific atmosphere area.

Next, when a person tries to get out of the airline suit 16, the second lid frame 12 and the second lid 13 are connected to the first lid frame 10 from the specific atmosphere area side in a state of being connected to each other. First lid
11 and 11 are brought into contact with each other, and the screw holes of the second lid frame 12 and the second lid 13 are aligned with the screw holes of the first lid frame 10 and the first lid 11, respectively. Then, the first screw 5 is rotated to connect the first lid frame 10 and the second lid frame 12 at the other end side of the screw 5, and the first lid frame 10 to the first lid 11 are connected. Disconnect. Further, the second screw 8 is rotated to connect the first lid 11 and the second lid 13 at the other end side of the screw 8, and the second lid frame 12 to the second lid 13 are connected.
Disconnect. This makes it possible to separate the first lid 11 and the second lid 13 from the first lid frame 10 and the second lid frame 12, respectively, while fixing the first lid 11 and the second lid 13 to each other.

In this state, since the entrance / exit 50 of the side wall 15 and the entrance / exit of the airline suit 16 are connected via the connected first and second lid frames 10 and 12, only the inside of the airline suit 16 is not connected. An air line suit 16 airtightly separates the specific atmosphere area and the non-specific atmosphere area from the specific atmosphere area side. Therefore, the airline suit 16 is not required to diffuse the atmosphere from the specific atmosphere area to the non-specific atmosphere area.
From inside, a person can go directly to the outside non-specific atmosphere area.

Further, the first lid 11 and the second lid 13 which are separated from the first lid frame 10 and the second lid frame 12, respectively, are overlapped so that the surface facing the specific atmosphere area is on the inside. The surfaces contaminated with the same atmosphere in the specific atmosphere area are not exposed to the outside and the atmosphere in the specific atmosphere area is not diffused into the non-specific atmosphere area.

Further, in this state, a person can enter the airline suit 16 from the non-specific atmosphere area, and if the reverse operation is performed thereafter, the entrance of the airline suit 16 and the entrance 50 of the side wall 15 are simultaneously closed. At the same time, the side wall 15 and the airline suit 16 can be separated. As a result, as described above, a person who has entered the airline suit 16 can work in the specific atmosphere area.

It should be noted that the first and second drivers 4 and 7 are provided, which penetrate the screw holes of the first lid 11 and rotate the first and second screws 5 and 8 from the non-specific atmosphere area side, respectively. Since all of the above operations can be performed on the non-specific atmosphere area side, it is not necessary to insert a hand into the specific atmosphere area side with gloves or the like to perform the operation. Furthermore, the first and second drivers 4, 7 are
In the case where the gears 2 and 3 that mesh with each other are used to rotate in opposite directions in synchronism with each other, both screws 5 and 8 can be simultaneously rotated in opposite directions by simply rotating one driver 4 or 7. Since the rotating operation of the two screws 5 and 8 can be performed at the same time, the series of operations described above can surely be performed easily and easily.

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIGS. 1 (a) to (e), reference numeral 16 is an airline suit, which is an airtight suit to be worn when working in a specific atmosphere area such as a contaminated area. 12 is an airline suit
With the second lid frame provided around the back door of 16
Reference numeral 13 is a second lid fitted to the second lid frame 12 from the outside of the airline suit 16.

Reference numeral 15 denotes a side wall that airtightly separates the specific atmosphere area and the non-specific atmosphere area, and the first lid frame 10 is attached around the entrance / exit 50 thereof. Reference numeral 11 is a first lid fitted into the first lid frame 10 from the non-specific atmosphere area side. The first lid frame 10, the first lid 11, and the second lid frame 12 are provided with screw holes at corresponding four positions. Further, adjacent to the screw holes, the first lid 11, the second lid 13, and the second lid frame 12 are also provided with screw holes at their corresponding positions. 14 is the first lid frame 10, the first lid 11,
A packing inserted between the joint portions of the second lid frame 12 and the second lid 13 and used to maintain the airtightness of the joint portions.

FIG. 1 (a) shows a schematic view of a part of an airline suit and a side wall portion connected to the same. 20 is an airline hose. These binding processes are shown in FIGS. 1 (b) to 1 (d). FIG. 1 (B) shows an initial state of coupling, and FIG. 1 (C) shows a state where the operation of the handle 1 has progressed to some extent and the gears 2 and 3 overlap each other. FIG. 1D shows the case where the operation of the handle 1 further proceeds. First
The figure (e) shows a state in which the first lid frame 13 of the airline suit and the second lid frame 11 on the side wall side are joined and removed. Then, through the entrance / exit 50 of the side wall 15, a person can enter the airline suit from the non-specific atmosphere area, or can directly exit from the airline suit to the non-specific atmosphere area.

In FIG. 1 (e) and FIG. 2 (a), 5 is a screw penetrating the first cover frame 10, and both ends of this screw 5 are the second cover frame 12 and the first cover frame 12. It is a screw that can be screwed into each of the screw holes of the lid 11. Reference numeral 4 denotes a screw-shaped first driver provided from the non-specific atmosphere area side through the screw hole of the first lid 11, and the head portion 6 of the screw 5 is detachably connected to the right end portion in the drawing. To be done. 8 is the second lid
The screw 8 is provided so as to pass through it, and both ends of the screw 8 can be screwed into the second cover frame 12 and the screw holes of the first cover 11, respectively. Reference numeral 7 denotes a screw-shaped second driver provided from the non-specific atmosphere area side through the screw hole of the first lid 11, and the head 9 thereof is detachably connected to the right end portion of the screw 8 in the drawing. To be done.

Gears 2 and 3 are attached to the ends of the drivers 4 and 7 protruding toward the non-specific atmosphere area side, and a handle 1 is provided on one of the gears 2 side. Gear 2,
Reference numeral 3 is meshed with each other and causes the drivers 4 and 7 to rotate in opposite directions in synchronization with each other. That is, when the handle 1 is turned to the right in FIG. 2 (B), the gear 2, the first driver 4 and the screw 5 are rotated to the right, and in the case of the right screw, to the left in FIG. 2 (I). Screwed in. on the other hand,
The second driver 7 to which the gear 3 is attached and the screw 8 rotate counterclockwise in FIG. 2 (B), and in the case of a right screw, are screwed rightward in FIG. 2 (A). Although the details of these movements will be described later, by operating the handle 1, the screws 5 and 8 are simultaneously rotated in mutually opposite directions, so that the first lid frame 10, the first lid 11, and the second lid frame are rotated. 12 and the second lid 13 are combined and separated.

2 (a) to (c) are overall views of this connecting portion.
FIG. 2 (C) is a front view of this connecting portion, FIG. 2 (B) is a rear view, and FIG. 2 (A) is a sectional view thereof. Although the first lid frame 10, the first lid 11, the second lid frame 12 and the second lid 13 shown in the figure are circular, these are not suitable for people
It may have any shape as long as it can move in and out of 16, and need not be circular.

3 and 4 are partially enlarged views of this coupling mechanism. The screws 5 and 8 are fitted through the screw holes of the first lid frame 10 and the second lid 13. In this assembling process, after inserting the stopper 18 in the middle of the screws 5 and 8 into the intermediate part where the center of the through hole is widened, the sealing member 17 is screwed in to seal one of the intermediate parts. Can be assembled by any method. When the screws 5 and 8 are right-handed screws, the intermediate stopper 18 moves toward the side wall 19 on the right side in the figure if the screw is continuously rotated rightward, and the intermediate stopper 18 is the sealing member if the screw 5 is continuously rotated counterclockwise. Move in the direction of 17.

As is clear from the above configuration, if the screw 5 is rotated clockwise, the first lid frame 10 and the second lid frame 12 are joined at the right end side in the figure, and The first lid frame 10 and the first lid 11 that were joined at the right end side are separated. Further, the head 6 of the driver 4 is separated from the screw 5. At the same time, since the screw 8 rotates counterclockwise, the first lid 11 and the second lid 13 are joined at the left end side in the figure, and the second lid that is connected at the left end side in the figure of the screw 8 is joined. The lid frame 12 and the second lid 13 are separated. Thereby, the entrance and exit of the airline suit 16 is connected to the entrance and exit of the side wall 15, and the first and second lids 11 and 13 can be removed from the first and second lid frames 10 and 12, respectively, while being connected, The entrance of the airline suit 16 opens to the non-specific atmosphere area side,
A person can directly enter and leave between the airline suit 16 and the non-specific atmosphere area.

Also, by the rotation operation in the opposite direction, the first lid frame 10 and the first lid 11 are connected at the other end side of the screw 5, and
The second lid frame 12 is separated from the first lid frame 10. Also,
On the other end side of the screw 8, the second lid frame 112 and the second lid 13 are connected, and the second lid 13 is separated from the first lid 11. As a result, the entrance and exit of the airline suit 16 and the side wall
It is possible to simultaneously close the doorways 50 of the fifteen and simultaneously separate the side wall 15 and the airline suit 16. As a result, as described above, a person having the airline suit 16 can work in the specific atmosphere area.

The rotation operation of these two screws 5 and 8 can be simultaneously performed on the non-specific atmosphere area side by the operation of the handle 1 by the engagement of the gears 2 and 3.

FIG. 5 shows the shapes of the drivers 4 and 7, and FIG. 6 shows the screws 5 and 7.
8 shows the shape. The screws 5 and 8 have a stopper portion 18 in the middle, and both ends are threaded. Also, these screws 5, 8
Hexagonal recesses 6 ', 9'are provided on the right end face of the. The hexagonal heads 6, 9 of the drivers 4, 7 are detachably fitted into the recesses 6', 9 ', The rotation of the gears 2, 3 can be transmitted to the screws 6, 9 via the drivers 4, 7.

[Effects of the Invention] As described above, according to the isolation / inflow mechanism according to the present invention, the non-specific atmosphere area is changed to the specific atmosphere area without expanding the pollution from the specific atmosphere area such as the contaminated area to the non-specific atmosphere area. Workers can directly enter and leave an airline suit, which is safe and eliminates the need for a low-pollution area room. In particular, the rotation of the two screws 5 and 8 results in 2
The lid frames 10 and 12 and the lids 11 and 13 can be combined and separated at the same time and in a proper and necessary combination to prevent the diffusion of contamination and the like, so that the operation is simple and the combination and the separation are performed. There is little effect of malfunction.

[Brief description of drawings]

1 (a) to (e) are vertical side views of the whole and a main part of the isolation / removal mechanism according to an embodiment of the present invention, and FIG. 2 (a) to FIG.
(C) is an enlarged vertical sectional side view, a front view and a rear view of an essential part of the isolation / removal mechanism according to the same embodiment, and FIGS. 3 and 4 are vertical side views showing the isolation / removal mechanism according to the same embodiment in a larger scale. FIG. 5 is a front view, a side view and a rear view showing the shape of a driver used in the isolation / retraction mechanism of the embodiment, and FIG. 6 is a front view, a side view and a rear view showing the shape of the screw according to the embodiment. . 2, 3 ... Gear, 4 ... First driver, 7 ... Second driver, 5 ... First screw 5, 8 ... Second screw, 10 ... First lid frame, 11 …… First lid, 12 …… Second lid frame, 13 …… Second lid, 15 …… Sidewall, 16 …… Airline suit, 50 …… Sideway entrance / exit

Claims (3)

[Claims] 1. A side wall (15) for partitioning a specific atmosphere area and a non-specific atmosphere area in a mechanism for entering and exiting an airline suit (16) worn in the specific atmosphere area from the non-specific atmosphere area.
First lid frame (10) provided around the entrance (50) of the door and a first lid (11) that is detachably fitted to the first lid frame (10) from the non-specific atmosphere area side. And is provided around the entrance and exit of the airline suit (16) in the specific atmosphere area,
A second lid frame (12) that is brought into contact with the first lid frame (10) from the specific atmosphere area side, and detachable from the outside of the airline suit (16) to the second lid frame (12) And a second lid frame (12) which is fitted to the first lid (11) and is brought into contact with the first lid (11) from the specific atmosphere area side, and is attached so as to penetrate the first lid frame (10). , Both ends of the first lid (11) and the second lid frame (12) are screwed into the screw holes of the first lid (11) and the second lid frame (12), respectively, and the second lid (13) is penetrated. , Both ends are the first lid (11) and the second lid frame (12), respectively.
And a second screw (8) screwed into the screw hole of the. 2. The first and second screws (5) and (8) as set forth in claim 1, wherein the first and second screws (5) and (8) are passed through the screw holes of the first lid 11 from the non-specific atmosphere area side. An isolation / withdrawal mechanism comprising first and second drivers (4) and (7) which are respectively rotated. 3. The device according to claim 2, wherein the first and second drivers (4), (7) rotate in opposite directions synchronously by gears (2), (3) meshing with each other. Isolation and entry / exit mechanism characterized by being performed.