JP2001124297A - Gass discharge preventing device also used for filling gas - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gass discharge preventing device also used for filling gas without requiring replacement of a high pressure gas cylinder under the eaves. SOLUTION: A valve chest 2 is arranged on the gas cylinder mounting side of a body 1, a permeable stopper board 4 is arranged on a high pressure gas cylinder mounting side in the valve chest 2, a rubber valve seat 6 is arranged on a high pressure hose mounting side, and a ball valve 5 is arranged between the stopper board 4 and the valve seat 6. A locking ball 8 engaged with a ring-shaped recessed groove 20 arranged in the circumferential surface of the plug 11 of a high pressure gas hose 15 is arranged to be projected/retreated inward on the high pressure hose mounting side of the body 1, and a second sleeve 9 having a slide lock handle 26 to inwardly push out the locking ball 8 is also arranged thereon. A plug head 12 being a valve opening/closing means is arranged at the tip of the plug 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas discharge prevention device which is mounted at the outlet of a high-pressure gas container for LP gas or the like and is also used for gas filling.

[0002]

2. Description of the Related Art Conventionally, a high-pressure hose attached to a high-pressure gas container has a gas-release prevention device fixed to the high-pressure gas outlet end, and is attached to the high-pressure gas container via the gas-release prevention device. ing.

[0003] Therefore, when the gas in the high-pressure gas container becomes empty, the high-pressure hose provided with the gas release prevention device must be removed from the high-pressure gas container, and the high-pressure gas container filled with the high-pressure gas must be replaced under the eaves. In addition, the labor and labor for transportation for replacing the high-pressure gas container were great.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a gas filling and gas emission preventing apparatus which does not require replacement of a high pressure gas container under eaves.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first invention is to provide a valve body having a gas-permeable stopper plate on a gas container mounting side and a high-pressure hose mounting side. A valve chamber provided with a valve seat is provided, a ball valve is housed in the valve chamber, and a high pressure hose with a plug is detachably mounted on the high pressure hose mounting side of the valve body.
A gas filling / gas release preventing device comprising a plug lock means for the high pressure hose and a gas filling nozzle mounting portion provided at an end of the valve body on the high pressure hose mounting side.

A second aspect of the present invention is a gas filling and gas emission preventing device according to the first aspect, wherein the valve seat is made of rubber.

According to a third aspect of the present invention, as a plug locking means, a suitable number of locking balls which fit into ring-shaped grooves provided on the peripheral surface of a plug of a high pressure hose are provided on the inner surface of the valve body so as to be freely retractable. This is a gas filling and gas release prevention device provided with a slide lock handle for pushing a ball inward of a valve body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are partially sectional views showing a state immediately before completion of mounting a high-pressure hose and a state upon completion of mounting of a high-pressure hose according to an embodiment of the present invention, and FIG. FIG. 4 is a sectional view taken along line AA of FIG. 1, and FIG. 4 is a sectional view taken along line BB of FIG. Then
In the figure, 1 is a main body, 2 is a valve chamber, 3 is a gas flow port on the high-pressure gas container side, 4 is a breathable stopper plate, 5 is a ball valve, 6 is a rubber valve seat, 7 is a first sleeve, and 8 is a lock. Ball 9, a second sleeve having a tapered portion 23 for pushing out the locking ball 8 and a slide lock handle 26, a coil spring 10 for holding the open position of the second sleeve 9, and a plug 11 for a high-pressure hose , 12 is a plug head for ventilation, 13 is an airtight holding ring, 14 is a coil spring, 15 is a high-pressure hose, 16 is a socket, 28 to 30 are O-rings, and 31 and 32 are stopper rings.

The main body 1 formed in a cylindrical shape has a structure in which one end is detachably attached to a container valve mounted on a high-pressure gas container such as a PL gas container, and a plug attached to the other end is attached to a high-pressure hose. A valve chamber 2 provided with a gas flow port 3 is provided on the high-pressure gas container mounting side of the main body 1, and a first sleeve 7 and a first sleeve 7 which are fitted with a plug 11 mounted on a high-pressure hose 15 are provided on a high-pressure hose mounting side. Two sleeves 9 are mounted.

In the valve chamber 2, a gas-permeable stopper plate 4 is provided on the gas container mounting side, and a rubber valve seat 6 is provided on the high-pressure hose mounting side, and the stopper plate 4 and the valve seat 6 are connected to each other. A ball valve 5 is provided therebetween. As shown in FIG. 3, the stopper panel 4 has gas vents 17 at the center and gas vents 18, 18, 18, 18 at four locations around the stopper board.
The valve seat 6 is provided with a valve port 19 having a diameter smaller than the diameter of the ball valve 5.

When the plug 11 fixed to the high-pressure hose 15 is inserted and fitted into the first sleeve 7 inserted on the high-pressure hose mounting side of the main body 1, the peripheral surface of the plug 11 of the high-pressure hose 15 is inserted. Through hole 2 containing four locking balls 8, 8, 8, 8 engaged with ring-shaped concave groove 20 provided in
1, 2, 21 and 21 are provided. The inside of the through hole 21 is formed so that the locking ball 8 does not fall inside.

The second sleeve 9 is for locking the locking ball 8 provided on the first sleeve 7, and has a tapered portion 23 at the end for pushing the locking ball 8 toward the center of the first sleeve 7. The coil spring 10 is provided between the first sleeve 7 and the engaging portion 24 so that the second sleeve 9 is urged in the high-pressure hose direction (rearward). The moving range is determined by the ring-shaped concave groove 25 provided on the peripheral surface and the stopper ring 31. When the first sleeve 7 is located closest to the high pressure hose side, as shown in FIG.
Reference numeral 3 denotes a locking ball 8 so that the locking ball 8 does not protrude more than necessary from the through hole 21 toward the outer periphery of the first sleeve 7.
Has stopped.

As shown in FIG. 4, the plug 11 has four plug heads 12, 12, 1 surrounding a gas flow hole 27 as shown in FIG.
2 and 12, an airtight holding ring 13 movably in the axial direction via a coil spring 14 is provided outside a substantially middle position of the plug 11, and the other end is a socket 1.
6 is connected to the high-pressure hose 15.

With the above configuration, when the plug 11 is not mounted on the main body 1, when the high-pressure gas from the high-pressure gas container passes through the circulation port 3 and the stopper plate 4 and enters the valve chamber 2, The ball valve 5 is pressed against the valve seat 6 with gas pressure, and closes the valve port 19 as shown in FIG.

To supply high pressure gas, a high pressure hose 15
When the plug 11 is inserted into the second sleeve 9 and pushed in, first, the O-ring 28 provided at the front of the airtight holding ring 13 is brought into close contact with the concave portion 22 and the position of the concave groove 20 of the plug 11 and the position of the ball 8 are adjusted. When the second sleeve 9 is further pushed toward the gas container mounting side, the coil spring 10 is compressed, and the tapered portion 23 pushes the locking ball 8 out of the through hole 21 of the first sleeve 7 to form the concave groove 20. And the plug 11 is locked. At this time, the tip surface 1 of the plug 11
2a presses the ball valve 5 away from the valve seat 6 to open the valve as shown in FIG.
The gas is supplied to the high-pressure hose 15 through the gas flow holes 27 of the plug 11 through the gaps between 2, 12, 12, and 12.

When the plug 11 is removed from the state shown in FIG.
Pull the slide lock handle 26 of the second sleeve 9 toward the high pressure hose mounting side, and the tapered portion 23
1 and at the same time the airtight holding ring 13 is
The coil 11 is moved to the high-pressure hose mounting side via the, and the coil spring 14 is in a compressed state. Then, the resilient force of the coil spring 14 urges the plug 11 toward the high-pressure hose mounting side, and the plug 11 The locking ball 8 in the through groove 20 is pushed outward in the outer peripheral direction while moving to the hose mounting side, and the plug 11 can be removed. At this time, if gas remains in the high-pressure gas container, the ball valve 19 is released, so that the ball valve closes the valve port 19 by gas pressure, and gas release is prevented.

The reason why the coil spring 10 is provided in the apparatus of the embodiment is that the second sleeve 9 is
With this configuration, it is possible to prevent the plug 11 from moving in the direction of the first sleeve 7 so that the locking ball 8 is locked and the plug 11 cannot be inserted. It is.

The reason why the coil spring 14 is provided is to enhance the airtightness of the O-ring 28.

FIGS. 5 and 6 are partial cross-sectional views of the embodiment showing the state when the high-pressure gas filling nozzle 33 is started to be mounted and the state when the mounting is completed when the high-pressure gas container is filled with the high-pressure gas. Reference numeral 34 denotes a rubber head provided at the tip of the filling nozzle 33.

Next, the case of high-pressure gas filling will be described. As shown in FIG. 5, the rubber head 34 of the filling nozzle 33 is engaged with the concave portion 22, and the second
It is pushed into the gas container mounting side together with the sleeve 9, and the filling nozzle 33 is fixed to the main body 1 by a fixture (not shown) attached to the filling nozzle 33. Thus, the locking ball 8
The O-ring 29 provided on the slide lock handle 26 is in close contact with the main body 1 to improve airtightness and prevent gas leakage.

When the high-pressure gas is sent from the nozzle 33, the ball valve 5 is separated from the valve seat 6 by the gas pressure.
The high-pressure gas can be fed into the high-pressure gas container and filled. Since the ball valve 5 is in contact with the recess 4 a of the stopper plate 4, the ball valve 5 does not shake in the valve chamber 2. When filling is completed and the nozzle 33 is removed, the ball valve 5 closes the valve port 19 due to the pressure in the gas container, thereby preventing gas leakage.

[0022]

As described above, according to the present invention, the high-pressure hose is made detachable and the filling nozzle 33 is mounted on the main body 1 so that the high-pressure gas can be charged. It is a practically useful invention that eliminates the hassle of replacement and enables simple and safe filling of high-pressure gas as well as refueling of domestic oil tanks.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing a state immediately before completion of mounting a high-pressure hose device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing a state when mounting of the high-pressure hose device is completed according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a partial cross-sectional view showing a state at the time of starting mounting of a filling nozzle in one embodiment of the present invention.

FIG. 6 is a partial cross-sectional view showing a state at the time of completion of mounting of a filling nozzle in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Valve chamber 3 Gas circulation port 4 Stopper board 5 Ball valve 6 Valve seat 7 First sleeve 8 Locking ball 9 Second sleeve 10, 14 Coil spring 11 Plug 12 Plug head 13 Airtight holding ring 15 High pressure hose 16 Socket

Claims (3)

[Claims] A valve chamber provided with a gas-permeable stopper plate on the side of the valve body on which the gas container is mounted, and a valve chamber provided with a valve seat on the side of the high-pressure hose. A high pressure hose with a plug is detachably mounted on the hose mounting side, a plug locking means for the high pressure hose is provided, and a mounting portion for a gas filling nozzle is provided at an end of the high pressure hose mounting side of the valve body. Characteristic gas filling and gas release prevention device. 2. The gas filling and gas release prevention device according to claim 1, wherein the valve seat is made of rubber. 3. The plug locking means is provided with a suitable number of locking balls engaging with a ring-shaped groove provided on the peripheral surface of the plug of the high-pressure hose so as to be freely protruded and retracted on the inner surface of the valve body. 2. The gas filling and gas emission prevention device according to claim 1, further comprising a slide lock handle that pushes the slide lock handle inward.