JPS6125469Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an emergency escape door device for a therapeutic high-pressure tank that performs hyperbaric oxygen therapy, etc.

Recently, carbon monoxide poisoning, decompression sickness, acute peripheral vascular disease, myocardial infarction, rheumatism, hypertension,
Hyperbaric oxygen therapy (barometric pressure therapy), which can be applied to various symptoms such as whiplash, back pain, skin diseases, and health promotion, has become actively used. This treatment device is equipped with a high-pressure tank that is airtight. In this case, in the case of large high-pressure tanks (class 2 equipment) that allow multiple patients to enter at once, the doors of the main and auxiliary rooms are also large and extremely heavy (for example, the inner diameter of the tank and total length
For a tank with a maximum working pressure of 30Kg/cm ² G with a diameter of 2800mm and a diameter of 8150mmL, the weight of the door that can close the inlet size of 1800mm x 80mm is over 200Kg). For this reason, the door must be opened and closed by a worker (technical staff), and after locking the door from inside the tank, the worker exits through the worker access door, which has a small clutch door mechanism placed on the side of the tank, and then opens the door. After the tank is locked, the inside of the tank is pressurized (or depressurized) using a separate means.

However, the biggest problem for patients inside this tank is the possibility of escape in the event of an emergency, due to the sense of loneliness caused by the airtight chamber structure, and the mental tension cannot be wiped away (currently used high-pressure tanks of this type are not equipped with an emergency door opening and closing mechanism that can be easily operated by patients from inside the tank).

In view of the above-mentioned circumstances, the present invention provides an emergency escape door device that allows a patient to easily and safely escape by his/her own operation.

That is, the present invention uses a hatch-type clutch door as a small worker entrance/exit door provided in a large high-pressure tank to unlock it with a simple operation from inside the tank, and also to adjust the air pressure (return to atmospheric pressure, vent residual air, etc.). ) are interlocked to enable escape from the clutch door.

Hereinafter, the present invention will be described with reference to drawings of embodiments.

Reference numeral 1 denotes a large high-pressure tank body with a main chamber 1a and an auxiliary chamber 1b, and a small circular worker entrance/exit door 2 is provided on the side of the high-pressure tank body 1 (in the drawing, the main chamber 1a and subchamber 1b). In this case, the construction of the worker entrance/exit door 2 includes a hatch-shaped clutch door main body 2a and a movable tightening ring 2b surrounding the outer periphery of the clutch door main body 2a.
It has a clutch door structure. This tightening ring 2
The outer circumferential surface 2b' of b is supported by a plurality of guide rollers 3 and is rotatable, and feed teeth 4, which are arcuate external teeth, are provided on the surface of the outer circumferential surface 2b', at least for tightening of the tightening ring body 2b. Only the rotation width is provided in one piece. A clutch mechanism 7 serving as a meshing clutch is attached to the end of the drive shaft 6 of the pinion 5 that meshes with the feed dog 4. A sealed bearing 10 is attached to the side surface of the high-pressure tank body 1 through the flange 9' of the access cylinder 9, which is the mounting position of the door 2.
Insert it and make it look inside the tank. Reference numeral 11 denotes a U-shaped clutch shifter serving as a clutch switching means, with the lower end working piece 13 facing a transition operating groove 12 carved at the end of the movable shaft 8 located in the tank. Fixed support piece 14
via a shaft 14'. 1
Reference numeral 5 denotes a handle that is integrated with the end of a movable shaft 8 located in the tank and serves as a shaft rotation means.
The pinion 5 is rotated through the clutch mechanism 7 by forward and reverse rotations of the pinion 5. Reference numeral 16 denotes a pressure adjustment interlocking gear provided in the middle of the movable shaft 8 located outside the high pressure tank main body 1, and a pressure adjustment interlocking gear guided from the inlet/outlet cylinder part 9 via an interlocking mechanism 17 meshed with the gear 16. This is done by operating the lock 19 of the communication pipe 18.
That is, in FIG. 6, the transmission gear 17a of the interlocking mechanism 17 that meshes with the movable shaft 8 is transferred to the gear 1 which becomes the bevel gear.
The interlocking shaft 17d rotates via 7b and 17c,
Plug portion 19 of the plug 19 provided in the pressure regulating communication pipe 18
A, the lock 19 is configured to be able to be opened and closed freely, and the opening/closing means of the lock 19 and the opening/closing means of the clutch door body 2a together constitute an emergency escape door device 20.

To explain this effect now, first, during normal operation of a high-pressure tank for performing hyperbaric oxygen therapy, the main chamber 1a and sub-chamber 1 of the high-pressure tank main body 1 are
Patients are accommodated in room b (when main room 1a and auxiliary room 1b are used as communication rooms), and then workers (supervising doctor,
A technical staff) turns the large, outermost door 21 of the high-pressure tank body 1 from inside the tank, and turns the handle 22 located in the center of the door 21, and the tightening claws 23 that can be linked to the handle 22 are extended to the outside on all four sides. Fix the locking piece 2
4 to close the tank inlet portion 1c. Next, only the worker exits through the entrance/exit tube 9 located at the small diameter worker entrance/exit door 2 arranged on the side of the high-pressure tank body 1, and closes the worker entrance/exit door 2 (of course, in this case Worker entrance/exit door 2 when opened
The engaging convex portions 25 that protrude intermittently over the entire outer periphery of the clutch door body 2a and the recesses 26 cut out in the flange portion of the tightening ring 2b surrounding the clutch door body 2a are oppositely matched. position).

After that, by rotating the tightening ring body 2b using a lever 27 protruding from the side, the concave portion 2 of the tightening ring body 2b is moved against the engagement convex portion 25 which has reached the mating position.
6 is shifted, and the engaging convex portion 25 overlaps the non-concave portion 26' of the tightening ring body 2b, and comes into strong sliding contact with this inner surface (the engaging convex portion 25 has a wedge shape when viewed from above), and the clutch is closed. The door body 2a is then tightened. At this time, the pinion 5 meshing with the feed dog 4 disposed on the outer circumferential surface 2b' of the tightening ring body 2b is also rotated in the same way, but the clutch mechanism 7 provided on the back of the pinion 5 is in a disengaged state where it is not yet engaged. Therefore, the movable shaft 8 part does not rotate, and the pressure adjustment knob 1
9 also maintains a closed circuit.

Then, the inside of the high-pressure tank body 1 is appropriately pressurized (for example, 2 to 3 atmospheres) using a predetermined pressurizing means (not shown). This change in atmospheric pressure causes stimulation through the blood, cerebrospinal fluid, etc. in the human body due to the rise and fall of pressure within the body, and this exerts a kind of pine surge effect on cells of the cranial nervous system, endocrine system, etc. It is used to treat various symptoms (of course, in this case, in conjunction with oxygen taken by other means,
It actively oxidizes cells throughout the body, revitalizing other cell groups, including the brain's nervous system, whose functions have been declining until now, and revitalizing their mechanisms). After a predetermined treatment, the pressure is sequentially reduced in the reverse order as described above, and the clutch door body 2a is opened by the reverse operation to the above, and the worker enters inside the tank and opens the main door 21.

However, during this high-pressure tank treatment, if an emergency occurs in the high-pressure tank main body 1 due to smoke, fire, oxygen supply stoppage, sudden change in the patient, or an external factor such as an earthquake, the high-pressure tank main body 1 In the event that an evacuation is forced (in general, an accident report is sent to the supervisor outside the tank via the communication system (not shown), but failures in this communication system must also be taken into account. ), first, by pulling toward you the lever portion 11' of the clutch shifter 11, which is located at the rear of the emergency handle 15 and is not located near the worker's access cylinder 9, which is the operating means for the emergency escape door device 20, Since the actuating piece 13 facing the shifting actuation groove 12 of the movable shaft 8 at the lower end of the clutch shifter 11 is pushed forward (towards the outside of the tank), the movable shaft 8 engaged with the actuating piece 13 moves forward. The transition claw portion 7a at the end of the movable shaft 8 meshes with the opposite receiving claw portion 7b at a fixed position, resulting in a so-called clutch engagement. After that, when the handle 15 is turned, the movable shaft 8 and the driving shaft 6 of the pinion 5 integrated with the movable shaft 8 rotate, and the feed dog 4 of the clamping ring body 2b on the door side with which the pinion 5 is engaged is tightened. Since it is fed in the opposite direction to the tightening direction, the clamping ring 2b substantially undergoes a remote return rotation, and the clutch door body 2a, which is tightened by the clamping ring 2b, becomes unlocked. on the other hand,
The transmission gear 17a meshing with the gear 16 disposed midway on the movable shaft 8 rotates (in this case, the meshing of the gear 16 and the transmission gear 17a can be achieved by either making one of the gears wider so that they are constantly in mesh, or ), the interlocking shaft 17d of the pot 19 gradually rotates via the gears 17b and 17c interlocked with the transmission gear 17a, and the plug portion 19 of the pot 19 is rotated gradually.
a is rotated, and the communication pipe 18 gradually opens. Along with this, the high pressure inside the high pressure tank body 1 is released and the pressure is gradually reduced. After this reduced pressure value has fallen to a value that does not cause hyperbaric damage (after the barometer 28 disposed inside the high-pressure tank body 1 has fallen below the specified value, for example, the escape safety zone is color-coded on the scale of the barometer 28). If you do this, you will be able to easily tell if the patient comes across it), and you can safely escape by pushing open the clutch door body 2a. Of course, this opening movement of the cock 19 is also useful for removing residual air that does not appear on the barometer even when the pressure is reduced by external operation.
That is, the clutch door body 2a is in the openable position (the tightening ring 2 is in the position of the engagement convex portion 25 of the clutch door body 2a).
When the tightening ring body 2b is rotated in conjunction with the handle 15 until the concave portions 26 (b) are aligned, the pressure adjustment knob 19 is automatically opened and the pressure is adjusted. Therefore, if the clutch door main body 2a is then pushed from the inside, the clutch door main body 2a will be opened with one end using the screw 29 as a fulcrum, and all that is required is to come out from the entrance/exit cylinder part 9. It is.

In addition, if a part of the interlocking mechanism 17 of the emergency escape device 20 is linked to a separately operated externally operated emergency depressurization exhaust valve (not shown), it will be more reliable. Of course, the pressure can be adjusted from inside.

As mentioned above, the emergency escape door device for a therapeutic high-pressure tank of the present invention includes a worker access door that serves as a small clutch door provided in a large high-pressure tank, and a tightening ring body surrounding the clutch door body. A pinion meshing with the feed dog provided on the tightening ring is interlocked with a clutch switching means for operating inside the tank, a clutch lever serving as a shaft rotation means, and a handle, and a pressure regulating knob is further provided in this interlocking mechanism. By using an interlocking structure, when a patient escapes from the tank in an emergency, the patient does not have to operate the extremely heavy main door of the high-pressure tank body, and the patient can use the small clutch door that serves as the worker's entrance/exit door.
It can be opened from the inside of the tank by simply operating the lever and handle (light and simple operation). Moreover, in this case, the pressure adjustment knob is also opened in conjunction with the loosening (unlocking) of the tightening ring of the clutch door.
A predetermined pressure reduction can also be performed automatically. This is also useful for removing residual air that remains in the tank and does not appear on the barometer. Therefore, even a physically disabled patient can easily push the worker access door and escape. Of course, if you have the comfort of being able to safely escape at any time in an emergency,
The anxiety caused by the secrecy of the tank is also eliminated, which is good for mental health, and from this point of view it also enhances the healing effects of air pressure therapy. Furthermore, the emergency escape door device of the present invention has a structure in which the movement of the tightening ring body does not affect the clutch switching means, shaft rotation means, and locking side when the clutch mechanism disengages under normal conditions, so there is wear and tear on the various interlocking means. Never give up. Therefore, the conventional handling method is sufficient for normal operation of the worker entrance/exit door.

Although the embodiment of the present invention shows a large high-pressure tank, if the door structure of the main door or auxiliary door of other high-pressure tanks uses a clutch door system, the above-mentioned emergency escape device can be easily installed on the clutch door. It is possible to prepare.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG.
is a vertical sectional side view of the main part, and Figure 1B is a - of Figure 1A.
2 is a sectional view, Figure 2 is a slope view showing the main parts, Figure 3 is a front view, Figure 4 is a front view with the clutch door body opened,
FIG. 5 is a side view of the opening/closing mechanism, FIG. 6 is a plan view thereof, and FIGS. 7A and 7B are a side view and a front view of essential parts showing the clutch shifter and handle. 1...High pressure tank body, 2...Worker entrance/exit door,
2a...Clutch door body, 2b...Tightening ring, 4
... Feed dog, 5 ... Pinion, 7 ... Clutch mechanism, 8 ... Movable shaft, 11 ... Clutch shifter,
15...Handle, 17...Interlocking mechanism, 19...
Kotuku.

Claims (1)

[Scope of utility model registration request] Small clutch door body 2a that serves as the worker entrance/exit door 2
A feed dog 4 serving as an external tooth is provided on the outer circumferential surface of the tightening ring body 2b that surrounds the tightening ring body 2b, and a pinion 5 is meshed with the feed dog 4. A clutch mechanism 7 is attached to the sixth end, and the tip of the movable shaft 8 of the clutch mechanism 7 is attached to a sealed bearing 10.
A clutch shifter 11 is disposed at the end of the movable shaft 8 inside the high-pressure tank body 1 and is slidable in the axial direction with respect to the handle 15. The pressure regulation interlocking gear 16 provided in the middle of the movable shaft 8,
The interlocking shaft 17d of the cock 19 is attached to the pressure regulating communication pipe 18 whose communication hole faces into the high pressure tank body 1.
An emergency escape door device for a high-pressure tank for treatment, which is formed by meshing an interlocking mechanism 17 consisting of transmission gears and the like disposed in the tank.