JPS621503Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a gas kettle, in particular, a gas kettle, in particular, a gas kettle body and a closure, which are provided coaxially, and a gas inlet and a gas outlet are located coaxially with the closure and in opposite directions. , relates to a so-called straight-line gas tank.

Traditionally, this type of gas tank was produced in 1974.
There is a device disclosed in Japanese Patent No. 12633, in which the large diameter side of the closure 2 is used as a gas inlet, and a rotary body 30 is externally fitted to the large diameter side of the closure 2, as shown in FIG.
The small diameter side of the gas outlet is used as a gas outlet, and a hose end H fixed to the outer periphery of the gas outlet is fitted onto the rotary body 30, and operating parts C and C are extended from the base of the rotary body to the outer periphery of the hose end. This is a configuration in which .

In this conventional model, the flow path inside the gas tank is of a so-called straight type, penetrating from the back to the front.
Moreover, since the operating section is located on the outer periphery of the hose end H, it can be conveniently used under the condition that it is embedded in a vertical wall and the gas circuit penetrates the wall surface.

However, in this conventional device, the circuit from the inlet to the gas outlet is complicatedly curved, and there is a problem in that the pressure loss in this portion becomes large.

The present invention provides an operating section on the outer periphery of the connecting tube 11 for connecting gas rubber pipes, and
A gas inlet part is provided on the opposite side of the gas inlet part, and the gas circuit inside the pot is opened and closed by relatively rotating the closure part 2, which is located in the middle, and the closure chamber 3, which accommodates the closure part, by the operation part. The technical problem is to reduce the number of bends in the flow path in the circuit from the gas inlet to the connecting pipe 11 in order to prevent the pressure loss inside the tank from becoming large.

The technical means of the present invention taken to solve the above-mentioned technical problems is to rotatably accommodate the closure 2 in the closure chamber 3 in the Kotuku body B, and to attach a cylindrical shaft 5 to one end of the closure 2. The passage hole 4 of the closure 2 is connected to a shaft hole 6 having an open end at the tip of the cylindrical shaft, and a through hole 7 communicating with this shaft hole at the middle of the closure 2 and perpendicular thereto. The upstream end of this through hole communicates only in the fully open position with a pair of grooves 8, 8 cut into the inner wall surface of the closed chamber 3 of the Kotoku main body B, and these grooves 8, 8 The upstream side of the cylinder is connected to the gas inlet, the cylinder shaft 11 is engaged with a rotary cylinder 18 housed in an airtight outer circumference on the downstream side of the main body B, and the connecting pipe 11 is connected to the rotary cylinder 18 in communication. The operating portion on the outer periphery of this connecting tube is engaged with the rotating tube 18 so as to rotate integrally therewith.

The above technical means of the present invention operates as follows.

A gas circuit from the gas inlet to the connecting pipe 11 communicates via the grooves 8, 8 -> the passage hole 4 -> the rotating cylinder 18. Further, since the operating section is engaged with the cylinder shaft 5 provided at one end of the closure 2 via the rotating cylinder 18, the operating section and the closure 2 rotate together. Therefore, in the fully open position, it communicates with the grooves 8, 8 via the through hole 7 located upstream of the passage hole 4. Next, when it is rotated by a certain angle from this state, the upstream end of the through hole 7 comes off from the grooves 8, 8, and the flow path is blocked, that is, completely closed.

As described above, according to the above-mentioned technical means of the present invention, the closure 2 is rotated by the rotation of the operation part to open and close the flow path, and the through-hole is Since the bent flow path portions are formed only at both ends and the center of the gas tank 7, pressure loss is reduced in this type of straight gas tank.

Since the present invention has the above configuration, it has the following unique effects.

(1) The passage hole of the closure is T-shaped and has two gas inlets, and a corresponding groove is formed on the inner wall of the closure chamber, so it is difficult to ensure a constant flow rate. The diameter of the Kotsuk body can be set smaller than that of conventional ones.

(2) The passage hole of the closure is a T that is composed of an axial hole that coincides with the axis of the closure and a through hole that is perpendicular to this.
Because it is shaped like a letter, machining of the passage hole is easier than that of conventional straight-line gas closures of this type.

Hereinafter, embodiments of the present invention will be explained based on the drawings.

Fig. 1 shows a cross-sectional view of the embodiment of the present invention, and this straight type gas tank is used by penetrating a wall surface, with a plug A and a gas tank main body B.
The state shown in the figure shows the state in which the plug A is connected to the connection port 1 of the main body B.

A closing member 2 is housed coaxially with this main body B, and is rotatable within a closing chamber 3 by a certain angle. A T-shaped passage hole 4 is formed in this closure 2, and a shaft hole 6 coaxial with the cylinder shaft 5 communicates with the connection port 1 on the downstream side, and a through hole 4 perpendicular to the shaft hole 6 The upstream end of the hole 7 corresponds to the grooves 8, 8 cut into the inner wall of the closing chamber 3 (Fig. 2), and the through hole 7 and the grooves 8, 8 are arranged so that they coincide with each other when the closing chamber 2 is in the fully open position. It's getting old.

Further, the upstream ends of the grooves 8, 8 communicate with a cavity 10 located upstream of the closure 2 and downstream of the gas connection screw part 9.

Next, the plug A removably corresponds to the connection port 1 of the Kotoku main body B, and the connection pipe 11 inside this plug
A flexible pipe 12 to a gas appliance on the downstream side is connected to one side, and a protrusion 14 from an operating tube 13 serving as an operating section is connected to the plug body B in this plug-connected state.
The outer periphery is inserted into the seal port 15 provided in the connection port 1 in an airtight state.

This plug has a pair of engaging claws 16, 16, and is connected to the cock body B in the imaginary line state of FIG.
When the plug is connected to the socket and rotated 90 degrees from this state, the socket opens as shown by the solid line in the figure. At this time, the engagement claw 1 at the connection part between the plug A and the socket body B
The claws 16, 16 engage with a flange 17 of the plug body B in an axially prevented manner, so that the plug A is maintained in the connected state shown in the figure. Conversely, when the engaging claws 16, 16 are pushed in radially to release the engagement, the plug A can be removed.

Further, in the circumferential direction of this connecting portion, in the above-mentioned connected state, the engaging claws 16, 16 engage with the notches 20, 20 formed at the end of the rotating tube 18, respectively, as shown in FIG. There is. Furthermore, this rotating cylinder 18
is housed in the barrel body B in an airtight manner around the outer periphery, and its upstream end engages with the cylindrical shaft 5.
Therefore, the plug A and the closing member 2 are engaged with each other via the rotating cylinder 18, and as the operating cylinder 13 rotates, the closing member 2 rotates integrally therewith.

In the gas tank of the above embodiment, as shown in FIG.
When the plug is connected to the connection port 1 of the plug main body B in the fully closed position of the plug and is engaged with the rotating tube 18, and the operating tube 13 of the plug is rotated 90 degrees, the closing tube 2 will be connected to this. They rotate as one and the cock is fully opened. (Fig. 1), (Fig. 2) In this state, the gas from the connecting threaded portion 9 flows through the cavity 10 → grooves 8, 8 → through hole 7 → shaft hole 6 to the downstream side of the plug A. flows. In this gas flow path, since the bent flow path portion is composed of two flow paths, pressure loss due to the bending of the flow path is extremely suppressed by increasing the cross-sectional area of the flow path. Also, for the same reason, this groove 8,
Even if the flow passage cross-sectional area of No. 8 is set to a value that meets the above requirements, the increase in the diameter of the main body B will be small.

Next, in order to fully close the lock, the operating barrel 13 of the plug A is rotated 90 degrees to make the through hole 7 of the closure 2 perpendicular to the line connecting the grooves 8, 8, as shown in FIG. As a result, the upstream mouth of the through hole 7 is closed by the inner wall of the closing chamber 3 in the vicinity of the grooves 8, 8, and the flow path within the device is blocked.

It goes without saying that the above-mentioned linear gas tank functions in the same way as a conventional gas tank, but it is a linear gas tank with a small outer diameter of the gas tank main body B, and even when it is housed in a penetrating state on a wall. The through hole 19 may be small, and the work of drilling the through hole becomes easy.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention, in which a plug A indicated by a two-dot chain line is shown removed from a plug main body B. Figure 2 is a sectional view taken along line X-X, Figure 3 is an explanatory diagram of the wall-mounted state, and Figure 4 is the fully closed Y
-Y sectional view, FIG. 5 is a sectional view of the engaging claws 16, 16 portion in the plug connected state, and FIG. 6 is an explanatory diagram of a conventional example. , 4... Passing hole, 6
...Shaft hole portion, 7...Through hole, 8...Groove portion.

Claims (1)

[Scope of utility model registration request] An operating part is provided on the outer periphery of a connecting pipe 11 for connecting a gas rubber pipe, a gas inlet part is provided on the opposite side of this connecting pipe 11, and a closure 2 and a closure chamber 3 accommodating it are arranged in the middle. In the device in which the gas circuit in the pot is opened and closed by relative rotation by the operating part, the closure 2 is rotatably housed in the closure chamber 3 in the pot body B, and one end of the closure 2 is A cylindrical shaft 5 is connected to the cylindrical shaft 5, and the passage hole 4 of the closure 2 is communicated with the shaft hole portion 6 having an open end at the tip of the cylindrical shaft and the shaft hole portion 6 in the middle of the closure 2, and is perpendicular thereto. The upstream end of this through hole communicates only in the fully open position with a pair of grooves 8, 8 cut into the inner wall surface of the closing chamber 3 of the Kotoku main body B. Grooves 8, 8
The upstream side of the cylinder is connected to the gas inlet, and the cylinder shaft 5 is engaged with a rotary cylinder 18 which is housed on the downstream side of the main body B in an airtight manner on the outer periphery.
1, and an operating part on the outer periphery of this connecting pipe is engaged with the rotating cylinder 18 so as to rotate integrally therewith.