JP3214618B2 - Emergency ascent device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency levitation device, and more particularly to a helmet submersible emergency levitation air supply device.

[0002]

2. Description of the Related Art Helmet diving has a long history of about 200 years. Although some efforts have been made to improve the quality during this period, the basic structure has not been particularly noticeably improved. At present, helmet diving is in accordance with a system called "Kipp type helmet system" which is also called Japanese style. In this method, air supply from a compressor on board or on land pushes a check valve in the air supply pipe, air is supplied to the inside of the helmet, and air-conditioning is performed by an exhaust valve, and operations such as descent and ascent are repeated. Is available.

[0003]

However, the length of the hose (air supply pipe) between the compressor and the helmet differs from 20 m to 100 m depending on the application, and the longer the length, the more frequently the occurrence of trauma and damage due to repeated use increases. If there is any injury or cut, the air supply leaks from the hose (air supply pipe), and the supply of air supply is cut off. As a result, the diver cannot rise to the surface with only the air remaining in the helmet. In some cases, the user may be put under a very dangerous condition including the danger of life, which is inconvenient. Therefore, a highly reliable emergency levitation air supply device that operates simply and safely is desired.

[0004]

As a result of intensive studies, the present inventor has found that the above-mentioned problem can be solved by carrying a small emergency air tank and sending air from the emergency air tank in an emergency. Heading, the present invention has been completed.

[0005] An emergency levitation air supply device according to the invention of claim 1 of the present application comprises an air tank, pressure reducing means for adjusting the pressure of the air supply from the air tank, and a helmet for supplying the reduced pressure air from the compressor. And an air supply passage coupling means for introducing the air into the air supply system.

According to a second aspect of the present invention, there is provided an emergency levitation air supply device according to the first aspect, wherein the reduced pressure air is introduced into an air supply system from a compressor to a helmet. The air supply channel connecting means for connecting an air supply pipe for supplying emergency air from the air tank is connected to the first air supply pipe.
, A second connection port connected to a lumbar valve provided at the end of the air supply pipe for supplying air to the helmet, and a third connection port for connecting the air supply pipe for supplying normal air supply air from the compressor. And a manifold having:

According to a third aspect of the present invention, there is provided the emergency levitation air supply device according to the first or second aspect, wherein the first connection port is connected to the manifold via a check valve. And are connected.

According to a fourth aspect of the present invention, there is provided an emergency levitation air supply device according to any one of the first to third aspects, wherein the air tank is attached to a waist of a user. Characterized in that it is provided with a fixing device.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to this.

FIG. 1 is a schematic perspective view showing an emergency levitation air supply device according to the present invention. FIG. 2 is a perspective view showing details of an end of an air tank of the emergency levitation air supply device of FIG. In the figure, an emergency air tank 1 for storing air for use during emergency ascent is mounted on the diver's waist and has a size that does not substantially hinder the diver's diving behavior. A hollow engaging portion 3 having a substantially rectangular outer shape is provided continuously with the conduit portion 2 for introducing / discharging the compressed air. The engaging portion 3 is provided with a knob 4 of an open / close valve, which is rotated around an axis to open and close the compressed air flow path 5 formed by the hollow portion of the conduit portion 2 and the engaging portion. can do. A substantially cylindrical engagement end 6 is integrally formed at the release end of the engagement portion 3, and die-shaped recesses 7 and 8 are formed at both ends of the cylinder. An entrance / exit 9 of the flow path 5 is opened near the bottom of the recess 7. An annular groove or step 10 is provided at the edge of the recess 7.

The first pressure reducing device 11 has a fixture 12 attached thereto. Further, the first pressure reducing device 11 is provided with a residual pressure gauge 13 for measuring and displaying the residual air pressure in the air tank 1, and is connected to an emergency air supply hose 14. The fixing bracket 12 has a fastening handle 12a,
This is rotated about the axis to rotate the air tank 1 as described later.
The air-tightly engages with the engaging end 3 of the conduit portion 2, and the flow path 5 formed in the engaging end 3 is air-tightly connected to and communicates with the first decompression device 11 with respect to the outside. The other end 14a of the emergency air supply hose 14 is detachably and airtightly connected to the second pressure reducing device 16 via a connection fitting 15 called a one-touch fitting. Although the one-touch fitting 15 is shown in a disengaged state in the drawing, it is engaged when used. The pressure of the second pressure reducing device 16 can be adjusted by operating the pressure reducing valve adjusting handle 17.

The other end 18 of the second pressure reducing device 16 is connected to the manifold 19 via the first connection port 20 thereof. The manifold 19 has a second connection port 21 and a third connection port 22 separately, and the second connection port 21 is connected to an air supply hose 25 via a waist valve 24. The air supply hose 25 is connected to a helmet 27 (FIG. 4) via a check valve 26 (FIG. 4). The waist valve 24 has an adjustment handle 28 and can adjust the flow rate of air passing through the air supply hose 25. Also,
The third connection port 22 is connected through a check valve 29 to an air supply hose 30 for supplying normal air supply from a compressor (72 in FIG. 5) on the ship . These first to third connection ports 20, 21, 22 of the manifold 19 are airtightly connected to corresponding members by, for example, screw engagement. As described above, the air supply channel connecting means used in the present invention includes the manifold 19 as a main component.

In the present invention, as described above, the first and second
It is provided with decompression devices 11 and 16 and has a structure that satisfies legal requirements.

The emergency air tank 1 has a cylindrical shape, and nylon is passed through two parallel slits (not shown) provided in the longitudinal direction substantially at the center of a support plate 31 whose both ends are slightly curved on the same side. Fastening belt 32
Then, the body of the air tank 1 is wound, and tightly fastened to the support plate 31 so as not to drop or loosen. The end of the fastening belt 32 can be firmly stopped by Velcro (so-called magic tape) surface engagement. Both ends 33 and 34 of the carrying plate 31 are passed through two slits (not shown) provided at right angles to the longitudinal direction of the carrying plate 31 through a waist belt 35 made of nylon, and are turned around the waist of the diving suit of the diver. With the buckle 36
By tightening and fixing, it is securely fastened to the diver. For this reason, there is no danger of falling off during diving work. The waist belt 35 is passed between the fastening belt 32 and the trunk of the air tank 1.

FIG. 3A is a schematic perspective view showing a fixture used to fix the first decompression device 11 to the end of the air tank of the air supply device for emergency levitation according to the present invention. Indicates a single state in which it has been disengaged, and (B) indicates a state in which it is engaged with the end of the air tank. As shown in the figure, the first pressure reducing device 11
Is provided with a frame 41.
The frame 41 includes first and second annular portions 42, 43
The first annular portion 42 has a thread groove (not shown) corresponding to the thread 46 of the tightening handle 12a. The tip 47 of the tightening handle 12a can be moved forward and backward by rotating the 12a. The frame 41 is rotatably attached to the first decompression device 11. That is, the first pressure reducing device 1
1 is provided through a space (not shown) of the second annular portion 43, and a hexagonal pedestal 50 having a circular rim 49 is provided therein. The pedestal portion 50 projects a part of the upper surface 51 of the frame 41 of the fixing bracket 12 so as to cover the space of the annular portion 43, and the lower surface of the pedestal portion 50 and the frame 41 are turned around. Have enough play to be mobile. As a result, the engagement end 6 of the air tank 1 is
Since the degree of freedom of the air supply hose 14 and the degree of freedom of the communication hose 13a of the residual pressure gauge 13 are maintained even after the engagement and fixation,
An excessive force is not applied by the operation of the diver, and inconveniences such as a malfunction of the connection can be reliably avoided.

2B, the mortar-shaped concave portion 8 of the engaging end 6 is held so as to face upward, and is held by the tightening handle 1.
The arms 44 and 4 of the frame 41 are rotated in a state where the tip 47 of the frame 2a is rotated upward (to retract).
5 to engage the groove or step 10 provided on the edge of the mortar-shaped recess 9 with the circular rim 49 of the pedestal 50, and then turn the tightening handle 12a in the opposite direction. Lower the tip 47 and tighten. As a result, the flow path 5, the inlet / outlet path 9 (FIG. 2A), and the flow path 52 of the hollow shaft 48 (FIG.
An airtight channel is formed with respect to the outside world communicating with (A)) (FIG. 3B).

FIGS. 4A and 4B are schematic perspective views showing the mounted state of the emergency levitation air supply device of the present invention, in which FIG. 4A shows the front side of the diver, and FIG. 4B shows the rear side of the diver. As described above, the emergency levitation air supply device of the present invention mounts the air tank 1 on the waist of a diver (diving suit) by the waist belt 35 and the buckle 36 shown in FIG. The emergency air supply pipe 14 is connected to the second decompression device 16 connected to the first connection port 20 of the manifold 19 connected by the port 21 by the engagement of the one-touch fitting 15, so that the standby state can be easily set. can do. When removing the emergency levitation air supply device A of the present invention, the one-touch fitting 15 is disengaged and the waist belt 35 is removed, so that it can be easily removed from the diver (diving suit). Before the dive starts, the knob 4 of the open / close valve is turned to open the open / close valve. As a result, the air pressure in the air tank 1 is displayed on the residual pressure gauge 13, so that it is possible to confirm that the open / close valve is open and whether the air tank 1 is in a usable state. By the first and second pressure reducing device 11, 16 as the compressed air in the air tank 1 is reduced to a suitable pressure previously adjusted maintenance when the opening and closing valve opening knob of the opening and closing valve in an emergency Only by operating the valve 4 to open, the emergency air supply can be started.

FIG. 5 is a schematic diagram for explaining a method of using the present invention. In the figure, a submersible dive system 60 includes an air supply system 61
And a communication system 62. 63 is a water surface. The air supply system 61 sucks and compresses air in the atmosphere from an air suction hose 71 with a low-pressure compressor 72, and passes the purified air through an air purifier 73 to a diving air tank and a spare air tank 74 via a check valve. The air is sent to the air supply hose 30 via the flow meter 75 and the check valve 76. The diving air tank and the spare air tank 74 have a pressure gauge 77 with a pressure switch, a safety valve 78, and a switching valve 79. The diver equipped with the emergency levitation air supply device A of the present invention on his waist dives while receiving normal air supply sent from the air supply hose 30 via the check valve 29,
The underwater telephone 81 and the underwater speaker 82 constituting the communication system 62 perform diving work while contacting a diving supporter on the ship. Usually 4L in the air tank 1 for emergency ascent
(200 kg / cm ² ) (about 800 L in state pressure) of compressed air is stored.

In an emergency, when the air supply hose 30 is damaged or cut off, or when the air supply system 61 on the ship fails to supply sufficient air to the diver, the diver can use the underwater telephone to carry onboard the diver. Or immediately activate the emergency levitation air supply device of the present invention when urgency is required. That is, the knob 4 of the on-off valve is operated to open the on-off valve.
There is a legal obligation to open it). Since the second decompressor all others off valve before diving it is adjusted so that proper emergency air when it is open is performed simply by opening and closing valve is opened, the emergency levitating air tank The emergency air supply stored therein is introduced into the manifold 19 via the air supply pipe 14 and the first connection port 20, and is sent to the air supply pipe 25 to the helmet 27 via the second connection port 21. In this case, the check valve 29 prevents the backflow to the air supply system 61 or the air supply hose 30 on the compressor side in which some abnormality such as disconnection has occurred, so that the emergency air supply leaks from the cut air supply hose. There is no danger of being lost
The air is reliably sent into the helmet 27, and the safety of the diver is ensured. The diver can select the flying speed while checking the remaining amount of air in the air tank 1 with the fuel gauge 13. The ascent rate is usually 10 m /
Minute, the U.S. Navy decompression table stipulates 18 m / min (up to the first decompression point). However, since the emergency levitation air supply device of the present invention is for emergency use, it may slightly deviate from the above value. The priority is to ensure that the diver does not get lost in the sea and that he ascends and is rescued.

The inventor of the present invention has conducted five experiments on the required air supply amount depending on the difference in seabed depth. The results obtained are shown in Table 1 below.
It can be seen that the capacity of the air tank used in the emergency levitation air supply device of the present invention is sufficient and set to a value that allows for safety.

[0021]

[Table 1]

The members such as the air tank and the connection port of the emergency levitation air supply device of the present invention are usually made of a non-ferrous material such as brass or aluminum, especially in consideration of use in seawater. It is preferable to use a metal member. Also,
The belt or the like is preferably made of a strong and flexible plastic such as nylon.

While the present invention has been described with reference to an embodiment with reference to the drawings, the present invention is not limited thereto, and it is apparent to those skilled in the art that various changes and modifications can be made.

[0024]

According to the present invention, the air tank 1, the pressure reducing means for adjusting the pressure of the air supplied from the air tank 1, and the reduced air supply are introduced into the air supply system from the compressor to the helmet. And a highly reliable emergency levitation air supply device that operates simply and safely.

According to the present invention, the air supply passage connecting means for introducing the reduced-pressure air into the air supply system from the compressor to the helmet connects the first air supply pipe for supplying emergency air from the air tank. , A second connection port connected to a lumbar valve provided at an end of an air supply pipe for supplying air to the helmet, and a third connection port 22 for connecting an air supply pipe for supplying normal air supply from a compressor. By connecting to the air supply pipe from the compressor, the emergency air supply to the diver in an appropriate depressurized state is possible by simply opening the open / close valve of the air tank in an emergency. Is done.

According to the present invention, since the third connection port 22 is connected to the manifold via the check valve 29, the diver can be reliably connected to the emergency air supply from the air tank 1 without being backflowed and lost. Is sent to

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an emergency levitation air supply device of the present invention.

FIG. 2 is a schematic perspective view showing details of an end of an air tank of the air supply device for emergency levitation of the present invention, and FIG. 2 (A) is a state viewed from a side communicating with a flow path of compressed air from the air tank. ,
(B) shows a state viewed from the opposite side.

FIG. 3 is a schematic perspective view showing a fixing bracket used to fix a first decompression device to an end of an air tank of the air supply device for emergency levitation of the present invention. State,
(B) shows a state of engagement with the end of the air tank.

FIG. 4 is a schematic perspective view showing a mounted state of the emergency levitation air supply device of the present invention, wherein (A) is a front view of a diver,
(B) shows the state on the back side of the diver.

FIG. 5 is a schematic diagram illustrating a method for using the emergency levitation air supply device of the present invention.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS A Emergency levitation air supply device 1 Air tank 2 Conduit part 3 Engagement part 4 Knob of on-off valve 5 Flow path 6 Engagement end part 7, 8 Concave part 9 Inlet / outlet 10 Groove or step 11 First decompressor 12 12a Tightening handle 13 Fuel gauge 13a Communication hose 14 Emergency air supply hose 14a Other end of emergency air supply hose 15 Connection fitting (one-touch fitting) 16 Second pressure reducing device 17 Pressure reducing valve adjustment handle 18 Second pressure reducing device Other end 19 Manifold 20 First connection port 21 Second connection port 22 Third connection port 24 Waist valve 25 Air supply hose 26 Check valve 27 Helmet 28 Adjusting handle 29 Check valve 30 Air supply hose 31 Carrier plate 32 Fastening belts 33, 34 Ends of carrier plate 35 Waist belt 36 Buckle 41 Frame 42 First annular portion 43 Second Ring part 44, 45 Arm 46 Screw thread 47 Tip part 48 Hollow shaft part 49 Circular rim 50 Pedestal part 51 Upper surface of ring part of frame 52 Flow path 60 Underwater diving equipment system 61 Air supply system 62 Communication system 63 Water surface 71 Air suction hose 72 Low pressure compressor 73 Air purifier 74 Diving and spare air tank 75 Flow meter 76 Pressure gauge with pressure switch 77 Safety valve 78 Switching valve 81 Underwater telephone 82 Underwater speaker

Claims (4)

(57) [Claims] 1. An ordinary air supply from a compressor is supplied.
A flue pipe connected to a diving helmet for
A portable emergency levitation air supply that can be connected to
An air tank that can be worn on clothes and carried underwater ;
Opening and closing valve to release and close the air stored in the tank
Bed and a decompression means for adjusting the pressure of the air from the air tank, ambulatory emergency levitation, characterized in that it comprises a air flow path coupling means feed is introduced into the trachea feeding said air whose pressure reducer Air supply device. 2. The air tank is mounted on the waist of a diving suit.
2. The portable emergency levitation air supply device according to claim 1, further comprising a fixture for removing the air. 3. The air supply through the air supply passage coupling means.
Further provided is a means for adjusting a flow rate of the air supply introduced into the pipe.
Ambulatory frettage <br/> suddenly levitating air supply device according to claim 1 or 2, characterized in that that. 4. The apparatus according to claim 1, further comprising a residual pressure gauge for measuring and displaying a residual air pressure in the air tank.
4. The portable emergency levitation air supply device according to any one of 3.