JPH0318829Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention provides a cutoff valve in each of the branch gas passages branched from the main gas passage to a plurality of gas burners, and these cutoff valves are operated in the corresponding manner. The present invention relates to a gas control device that can be opened and closed using members.

(Prior Art) Conventionally, this type of device has a cutoff valve and a main valve on the upstream side thereof interposed in each branch gas passage to a plurality of gas burners, and these main valves and cutoff valves are controlled by corresponding operating members. Devices that can be opened and closed are known.

(Problems to be solved by the invention) However, according to the above conventional method, in addition to the cutoff valve, a main valve is also interposed in each branch gas passage, which results in multiple structures and high costs. Therefore, it is preferable to use one main valve in common for a plurality of gas burners.

An object of the present invention is to provide a device that meets the above requirements.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a cutoff valve in each branch gas passage branched from the main gas passage to a plurality of gas burners, and these cutoff valves are In a device that is operated to open and close by each corresponding operating member, a common main valve is provided on the upstream side of the branch part of the main gas passage, and the operating rods that are linked to each operating member are respectively shut off. The operating rods are arranged to face the valve rod of the valve, and are brought into contact with the valve rod of the main valve independently of each other.

(Example) Next, the present invention will be explained based on the illustrated example.

Figure 1 shows an embodiment in which the device of the present invention is applied to a grill device with gas burners arranged in two stages, upper and lower.In the gas table, there are two main gas burners 1 and 2, and Pilot burners 3 and 4 are provided, and a gas control unit 5 for controlling the operation of the main gas burners 1 and 2 and pilot burners 3 and 4 is provided as an operated member. Two push buttons 6 and 7 are provided as operating members for operating the unit 5.

The gas control unit 5 includes a pilot gas passage 11 connected to each pilot burner 3, 4 through each branch gas passage 9, 10 branching from the main gas passage 8 to the two main gas burners 1, 2. Electromagnetic safety valve 1 as a shutoff valve located downstream of the branch of No. 12
3 and 14 are provided, and a main valve 15 common to the two main gas burners 1 and 2 is provided on the upstream side of the branch part of the main gas passage 8, and a valve rod 13a of the electromagnetic safety valve 13 is provided.
An L-shaped first layer rod 16 that is linked to the push button 7 is located at the front end of the
The front end of the valve rod 14a of the electromagnetic safety valve 14 is opposed to the L-shaped second operating rod 17 that is linked to the push button 7, and the rear ends of the first and second operating rods 16 and 17 are connected to the main valve. 15, in contact with the front end of the valve rod 15a,
If the push button 6 is pressed against the return spring 6a from the starting end position A to the rear end position B, the first
The valve rod 15a is actuated by the operating rod 16 to open the main valve 15, and then the first operating rod 16 comes into contact with the valve rod 13a to move beyond the intermediate position C toward the terminal position B. The electromagnetic safety valve 13 is opened by pressing, and the push button 7 is configured to operate in the same manner as the push button 6. Thus, when either the push button 6 or the push button 7 is pressed, the electromagnetic safety valve 13 is opened. For example, when the main valve 15 is opened, the electromagnetic safety valve 13 or 14 is pressed open.

Further, the push button 6 is connected to an ignition switch 19 connected in series to an igniter 18 facing the pilot burner 3, as shown in FIG. 6, and a solenoid 13 of an electromagnetic safety valve 13.
It also operates the hold switch 21 that causes the discharge current from the capacitor 20 to flow through the capacitor 20. To explain this in detail, the switches 19 and 21 are connected to each button on the button rod 6b as shown in FIGS. 4 and 5. Cam protrusion 19
When the push button 6 is pressed, the ignition switch 19 is closed near the end position B, and the igniter 18 is activated. The hold switch 21 switches the solenoid 13 from before the intermediate position C.
The contact A is switched to the a contact point which discharges the electric current to the point B, and the contact remains until a predetermined electromotive force is generated from the thermocouple 22 facing the pilot burner 3 when the push button 6 returns to the intermediate position C, which will be described later. The safety valve 13 is connected to the capacitor 2
The valve is forcibly held in the open state by discharge from 0, and the push button 6 is moved from the intermediate position C to the starting end position A.
According to the return to , the hold switch 21 is switched to the B contact which charges the capacitor 20 via the solenoid 13b, and the thermocouple 22
The solenoid 13b is deenergized by the electromotive force of the thermocouple 22 by a charging current of opposite polarity, and the safety valve 13 is immediately closed, and the push button 7 is operated in the same manner as the push button 6. It was configured so that it would take place. In the drawing, 23 and 24 are the push buttons 6,
The figure shows a locking mechanism provided to lock the return operation by the return springs 6a, 7a from the terminal position B of the push buttons 6, 7 at an intermediate position C. In this case, the locking mechanisms 23, 24 It is configured with a push-button mechanism that is unlocked by pressing again from position C. The details of the locking mechanisms 23 and 24 have been explained in the push-button device for a water heater (Japanese Patent Application No. 1765/1982) previously filed by the applicant of the present application, and therefore will not be repeated here.

(Function) Next, the operation of the device of the present invention will be explained based on the above embodiment.
2, the main valve 15 is first opened, then the electromagnetic safety valve 13 is opened, gas is supplied to the pilot burner 3 and the main gas burner 1, and the pilot burner Ignition is provided by the operation of the igniter 18, and transfer ignition is provided to the main gas burner 1 from the pilot burner 3. Next, the push button 6 is released, but at this time, the push button 6 is released.
is locked by the locking mechanism 23 at an intermediate position C that does not cause the main valve 15 to close, and the main valve 15 is held in the open state. It can be done.

When the push button 6 returns to the intermediate position C, the electromagnetic safety valve 13 is released from being pressed open as shown in FIG. The valve is kept open by electricity.

Next, when the push button 6 is pressed again from the intermediate position C, the locking by the locking mechanism 23 is released and the push button 6 is returned to the starting position A, and is connected to the main valve 15 and then to the b contact of the hold switch 21. By switching, the electromagnetic safety valve 13 is closed, and the main gas burner 1 is closed.
and pilot burner 3 are extinguished.

Furthermore, when the push button 7 is pressed from the starting end position A to the ending position B, the main valve 15 is first activated, and then the electromagnetic safety valve 14 is activated, as in the case where the push button 6 is pressed.
is opened, the pilot burner 4 is ignited,
The main gas burner 2 is given spark ignition. The following operations, ie, the operations when the push button 7 is released and the operations when the push button 7 is pressed again, are the same as the operations when the push button 6 is operated, and therefore will not be described here.

In this case, it is possible to perform over-heat cooking such as grilling fish using a grill device of a gas stove.

Furthermore, it is also possible to press both the push buttons 6 and 7 from the starting end position A to the ending position B. In this case, both the main gas burners 1 and 2 are ignited, and for example, the upper and lower Can be used for cooking over fire.

The illustrated example is an example in which the device of the present invention is applied to a grill device in which gas burners are arranged in two stages, upper and lower, but the invention is not limited to this. It is applicable to all gas appliances equipped with two or more gas burners.

Further, in the illustrated example, the cutoff valve is constituted by an electromagnetic safety valve, but it is not limited to this, and may be constituted by a simple on-off valve in which a valve and a valve rod are integrally formed. In this case, like the original valve, when the push button is locked at intermediate position C, the on-off valve is pushed by the operating rod and held in the open state.

(Effect of the invention) As described above, according to the invention, one common main valve is interposed on the upstream side of the branch part of the main gas passage, and the operating rods interlocked with the respective operating members are respectively connected to the respective shutoff valves. In addition to facing the valve rod, each operating rod is made to contact the valve rod of the main valve independently of the other, so that the gas burner connected to each branch gas passage has a common one.
It is sufficient to provide only one main valve, and compared to the conventional device in which a main valve is provided for each branch gas passage, the structure is simpler and it can be provided at a lower cost.

[Brief explanation of the drawing]

Fig. 1 is a cut-away front view showing an example of the implementation of the device of the present invention applied to a gas table, Figs. 2 and 3 are cut-away front views showing its operating state, and Fig. 4 is the same as Fig. 1. 5 is a cross-sectional view taken along the line - - of FIG. 4, and FIG. 6 is a circuit diagram of the electrical system of FIG. 1. 1, 2... Main gas burner (gas burner), 6, 7... Push button (operation member), 8... Main gas passage, 9, 10... Branch gas passage, 13, 1
4... Solenoid safety valve (shutoff valve), 15... Main valve, 1
3a, 14a... valve lever, 15, 16... operating lever.

Claims (1)

[Scope of utility model registration request] A cutoff valve is interposed in each branch gas passage to a plurality of gas burners branched from a main gas passage, and these cutoff valves are opened and closed by corresponding operation members, in which the branch of the main gas passage is A common main valve is interposed on the upstream side of the section, operating rods interlocked with the respective operating members are respectively opposed to valve rods of the respective shutoff valves, and each operating rod is connected to the valve rod of the main valve. A gas control device characterized in that the devices are brought into contact with each other independently.