JPS6319712Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas cooker for use in gas cookers and other gas appliances.

Conventionally, in a gas tank body c having gas ports a and b, there is a closure e which is rotated by an operating shaft d, and which is opened and closed by a pressing rod g passing through a through hole f in the axial direction of the closure e. A type in which electromagnetic safety valves h are provided coaxially with each other and the gas taken in from one gas port and reaching the other gas port is controlled by the closure e and the electromagnetic safety valve h is disclosed in, for example, Japanese Patent Publication No. It is known from Publication No. 56-105222.

In such a device, if the flow rate of the gas flowing out from the gas port is to be switched in multiple stages, various passage configurations can be considered, but generally the structure is complicated.

In view of the current situation, the object of the present invention is to obtain a gas tank device having an extremely simplified passage configuration in a gas tank device having the above-mentioned configuration, and which includes a gas tank main body having gas ports 1 and 2. 3, a closure 5 that is rotatably operated by an operating shaft 4 and an electromagnetic safety valve 8 that is opened and closed by a pressing rod 7 that passes through a through hole 6 in the axial direction of the closure 5 are arranged coaxially with each other. In a type in which the gas taken in from one gas port and reaching the other gas port is controlled by the closure 5 and the electromagnetic safety valve 8, the side of the closure 5 of the gas tank main body 3 A plurality of gas vents 9 are provided on the side surface of the closure 5, and a gas hole 10 that cooperates with the gas port 1 is provided, and the gas hole 10 communicates with the through hole 6 through the through hole 6. Each gas hole 11 is provided to cooperate with the gas vent 9 of the other gas port 9, and furthermore, each gas vent 9 is connected to the other gas port over the side of the closure 5 of the gas tank body 3 and the tip of the closure 5. A gas passage 12 communicating with the closing member 5 is provided, and a sealing member 13 is interposed between the inner peripheral surface of the tip of the through hole 6 provided in the closing member 5 and the pressing rod 7.

In the illustrated example, the gas port 1 that cooperates with the gas hole 10 of the closure 5 is used as a gas inlet, and the other gas port 2 is used as the gas outlet. The gas port 9 has two gas holes 11a and 11b, and the gas port 9 has a first gas hole 9a that cooperates with the first gas hole 11a and a second gas hole 11b that cooperates with the second gas hole 11b. 2nd port 9b and 3rd port 9
c.

A regulator 14 that can be operated from the outside faces the second and third gas ports 9b and 9c, thereby finely adjusting the amount of gas flowing from the second and third gas ports 9b and 9c. do. As the sealing member 13, a ring-shaped member made of rubber or a bundle of metal fibers is used.

In the drawing, reference numeral 15 indicates a pilot gas port provided in the gas tank main body 3, and reference numeral 16 indicates a gas hole provided in the closure 5 that cooperates with the pilot gas port. and the narrow part 7a of the pressing rod 7 inserted therethrough.

The operating shaft 4 and the pressing rod 7 have a rotating cylinder 18 which is engaged with the upper end of the closing member 5 so as to be able to freely move downward against the spring 17 and not rotate. A connector 20 is inserted into the rotary cylinder 18 and engaged with the lower end of the operating shaft 4 so as to be freely movable downward against a spring 21. at the protrusion 22 on its outer periphery.
8, and when the operating shaft 4 is rotated from the stop position, the protrusion 22 engages with the downward stepped portion 23a of the guide groove 23. Then, the rotary cylinder 18 rotates, and the rotary cylinder 18 is further moved downward by the cam mechanism 19, and pushed by this, the pressing rod 7 is moved downward.

The cam mechanism 19 includes a protrusion 24 that protrudes from the lower surface of the lid 3a provided on the gas tank body 3, and
and an inclined cam surface 25 on the upper surface of the rotary cylinder 18 that comes into contact with the rotary cylinder 18. There is no particular difference from what is disclosed in Publication No. 185778. 26 is a piezoelectric device.

Next, the operation of this device will be explained.

When rotating the operating shaft 4 approximately 140 degrees counterclockwise from the rest position shown in FIG.
is rotated accordingly, and the protrusion 22 is engaged with the downward step 23a of the guide groove 23 shown in FIG. Given.

When the rotating barrel 18 rotates, a cam mechanism 19 consisting of an inclined cam surface 25 on the upper surface and a protrusion 24 in contact with the cam mechanism 19 causes a downward movement against the spring 21 as the rotating barrel 18 rotates. The spring 21 is also applied to the connector 20 via the protrusion 22 that engages with the stepped portion 23a.
A downward movement is applied against this, resulting in the state shown in FIG. 9b.

At this time, the rotation of the rotating cylinder 18 causes the gas holes 10 provided in the gas port 1 and the closure 5, the first gas hole 11a, the first through hole 9a, and the second gas hole 11b to open as shown in FIG. 8B. The second communication port 9b is in communication with the safety valve 8 shown in FIG. 1 through the pressure rod 7 due to the downward movement of the connector 20, and the pilot gas valve 27 is opened. Furthermore, actuation of the piezoelectric device 26 is provided, providing ignition to the main burner via the pilot burner and providing combustion to the main burner. Next, when the operation of the operation shaft 4 is released, the stepped portion 23a of the protrusion 22
The guide groove 2 is disengaged from the guide groove 2 as shown in FIG. 9c.
3, the connector 20 is moved upward together with the pressure rod 7 by the elastic force of the spring 21, and the safety valve 8
is released, the pilot gas valve 27 is closed,
The closure 5 is rotated approximately 20 degrees clockwise from this state, and as shown in FIG. The state of communication with the second communication port 9b is maintained, and the maximum flow rate of gas is supplied to the gas port.

When rotating the operating shaft 4 50 degrees clockwise from this state from position C to position D in Fig. 2,
As shown in FIG. 8D, the second gas hole 11b has only the communication between the first gas hole 11a and the first communication port 9a cut off.
By communicating with the second gas ports 9b and 9c, a medium gas flow rate is supplied to the gas port 2.

When the operating shaft 4 is further rotated clockwise by 30 degrees from the D position to the E position in FIG. 2, a weak state is established in which only the second gas hole 11b and the third communication port 9c communicate with each other.

In this way, according to the present invention, a plurality of gas vents 9 are provided on the side of the closure 5 of the gas tank main body 3, and a gas hole 10 that cooperates with the gas port 1 is provided on the side of the closure 5. , the gas hole 10 and the through hole 6
Gas holes 11 are provided which communicate with each other through the gas vents 9 and cooperate with the plurality of gas vents 9, and between the inner circumferential surface of the tip of the through hole 6 provided in the closure 5 and the pressing rod 7. By simply interposing the sealing member 13, it is possible to easily switch the gas supply capacity to multiple stages.
This has the advantage that the configuration of the gas passage becomes extremely simple.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view showing one example of implementing the present invention;
Fig. 2 is an explanatory diagram showing the operating position of the operating shaft, Fig. 3 is a cross-sectional side view of the closure, Fig. 4 is a cross-sectional view taken along the - line, Fig. 5 is a cross-sectional view taken along the - line, and Fig. 6 is a cross-sectional view taken along the - line. Figure 7 is a cross-sectional view taken along the - line, Figure 8 is a diagram showing the operating state of the closure, Figure 9 is a developed view of the cam mechanism, and Figure 10 is a cross-sectional view of the conventional example. It is a diagram. 1, 2...Gas port, 3...Gas cock body, 4
...Operation shaft, 5...Closer, 6...Through hole, 7...Press rod, 8...Solenoid safety valve, 9...Gas vent, 1
0, 11...Gas hole, 12...Gas passage, 13...
...Seal member.

Claims (1)

[Scope of utility model registration request] In the gas tank main body 3 having gas ports 1 and 2,
A closure 5 that is rotatably operated by an operating shaft 4 and an electromagnetic safety valve 8 that is opened and closed by a pressing rod 7 that passes through an axial hole 6 of the closure 5 are provided coaxially with each other,
In a type in which the gas taken in from one gas port and reaching the other gas port is controlled by the closure 5 and the electromagnetic safety valve 8, a valve is located on the side of the closure 5 of the gas tank main body 3. A plurality of gas vents 9 are provided at the side of the closure 5, and a gas hole 1 that cooperates with the gas port 1 is provided on the side surface of the closure 5.
0, each gas hole 11 communicating with the gas hole 10 via the through hole 6 and cooperating with the plurality of gas vents 9 respectively, In addition, a gas passage 12 is provided across the tip of the closure 5 to communicate each gas port 9 with the other gas port 2, and the inner peripheral surface of the tip of the through hole 6 provided in the closure 5 and the pressing rod are provided. A gas tank device comprising a seal member 13 interposed between 7 and 7.