JP3184029B2 - Closure for solenoid valve unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic valve unit incorporating a safety mechanism for keeping a safety valve open when a gas burner is ignited and automatically closing the safety valve when the gas burner is extinguished. Applies to the child.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional solenoid valve unit incorporates a push-in type closet 4 in a tapered hole 3 formed in a gas flow path 2 in a unit main body 1, and this closet 4 is provided.
Is opened and closed by rotating the knob 5.
In the drawing, reference numeral 6 denotes a safety valve incorporated in the gas flow path 2. When a flame is present in the pilot gas burner, the safety valve 6 is opened by an electromotive force from a thermocouple disposed in the flame of the pilot gas burner. And when the flame is extinguished, the electromotive force is extinguished and the safety unit 6 is controlled by the control unit 7 to keep the valve closed. 8 is a gas passage inlet, 9 is a main gas outlet, 10
Is a 180 ° pushing mechanism.

FIGS. 10 and 11 show a state in which the closing (gas outlet 4a) 4 is fully closed in the solenoid valve unit, and the pilot gas inlet 11 on the unit body 1 side.
The main gas outlet 9 is closed by the closing member 4, and the knob 5 is in the fully closed direction (horizontal right direction).

When the knob 5 is pushed in this state and rotated 90 ° to the left, only the pilot gas inlet 11 opens as shown in FIGS. 12 and 13, and gas is supplied to the pilot burner. At this time, the knob 5 is in the vertical direction. When the pilot burner is ignited in this state, an electromotive force is generated in the thermocouple, and the safety valve 6 is fully opened.

Next, in order to use the main gas burner, the knob 5 is further rotated to the left by 90 °.
As shown in FIG. 15, the main gas outlet 9 is fully opened following the pilot gas inlet 11, and the knob 5 is oriented in the left horizontal direction. In this state, the main gas burner is ignited (fire is transferred from the pilot gas burner), and a main flame is formed.

To extinguish the main gas burner and the pilot gas burner, turn the knob 5 in the opposite direction to the previous one.
Rotate 0 °.

The solenoid valve unit having the above-described structure and operation is generally used for a gas appliance having a pilot gas burner. In particular, in the case of a commercial gas appliance, a pilot gas burner is mounted. Many are not. In addition, in the case of business use, only a part of the device, such as a rice cooker and a fryer, disappears and the safety device is not incorporated.

[0008] However, since October 1993, the installation of the extinguishing safety device has been required for gas kitchen appliances in which a fire cannot be directly seen, so that the solenoid valve unit shown in FIG. 9 is used. It is expected that opportunities will increase dramatically in the future.

However, in the case of commercial gas appliances, since there are many examples without the pilot gas burner as described above, the conventional solenoid valve unit having the pilot gas inlet 11 cannot be used as it is. Therefore, after attaching a blind plug to the pilot gas inlet 11, the solenoid valve unit main body is disassembled, and the closing member 4 is set in advance by turning 90 ° counterclockwise, or the closing member 4 is shifted 180 ° to the right direction. There is a countermeasure to insert and adjust so that the valve is fully opened at 180 ° from this position, and at the same time, adjust the holding structure so that the valve maintains the opening operation after ignition.

[0010]

However, from the viewpoints of safety and ease of use by the user, it is desirable to maintain the same operation of the cock as in the prior art. In the example, in the rotor for attaching the knob protruding from the closing member, it is necessary to machine the parallel cutting surface machined on the rotor by 90 ° with respect to the conventional one. Also, close the right 180 °
In an example where the cock is inserted in a staggered manner, the cock may rotate left or right when the rotation direction is normal, but this may cause the cock to be reversed. Can not answer.

An object of the present invention is to propose a closure for an electromagnetic valve unit which overcomes such disadvantages.

[0012]

The structure of the electromagnetic valve unit closure according to the present invention is as follows. A solenoid valve unit closure, wherein a gas inlet is formed at the bottom of the closing body and a gas outlet is formed on the sliding surface, and an L-shaped gas flow path is formed therein. The gas outlet of the gas flow path is formed to have a size having a spread of 180 °, and a band-shaped pilot is provided at the center of the outlet and opposed to the pilot gas inlet formed on the solenoid valve unit main body side. A solenoid valve unit closure formed with a gas inlet blockage zone.

[0013]

When the closing element according to the present invention is used for a solenoid valve unit for a gas appliance which is for business use and does not require a pilot, only the closing element is replaced with the previous one, and the pilot gas inlet may be kept in principle. However, a blind plug may be attached just in case as in the related art.

As in the conventional case, the knob is fully closed horizontally in the right direction, fully opened at 90 ° left rotation (vertical), and fully opened at 90 ° left rotation (left horizontal direction). Is the same as the knob of a normal solenoid valve unit or another gas cock with a push.

[0015]

1 and 2 show an embodiment of a closing member according to the present invention. Reference numeral 20 denotes a closing body, reference numeral 21 denotes a rotor to which a knob is attached, reference numeral 22 denotes a sliding surface, reference numeral 23 denotes a vertically rising part of the closing body 20 from a gas inlet 24 and bends at a right angle.
An L-shaped gas flow passage 25 is formed in the sliding surface 22 and has a gas outlet having an opening close to 180 °. The gas outlet 25 has a pilot gas inlet 11 on the unit body 1 side. A band-shaped pilot gas inlet blockage band 26 is formed at a position facing the airbag. In addition, this obstruction zone 2
6 is for processing the gas outlet 25 in the closing body 20;
It may be processed together, or only the blocking band 26 may be fitted later. In the usual solenoid valve unit, the closing body 20 need only be replaced with the closing body therein, and the knob is attached in the same direction.

FIGS. 3 to 8 show the solenoid valve unit main body 1 in which the closing body 20 according to the present invention is incorporated and the direction of the knob 5 thereof. FIGS. 3 and 4 show a fully closed state. FIG.
And FIG. 6 shows the state in which the knob 5 is rotated 90 ° to the left,
In this state, the pilot gas inlet 11 is
6 and the main gas outlet 9 is fully open. FIG.
8 shows a state in which the knob 5 is further rotated to the left by 180 °. Even in this state, the gas outlet 25 coincides with the main gas outlet 9 on the unit body 1 side and is fully opened. In the case where the closure according to the present invention is used as an electromagnetic valve unit with a pilot, it can be dealt with simply by cutting or removing the blocking band 26.

[0017]

As described above, according to the present invention, a closing band for closing the pilot gas inflow port is attached to the gas outlet of the closure, and the pilot gas inflow port is closed by this blocking band. There is no need to disassemble and adjust the pushing mechanism as in the prior art, and it is possible to prevent the knob from rotating in the opposite direction and causing a feeling of strangeness in use.

[Brief description of the drawings]

FIG. 1 is a perspective view of a closet according to the present invention.

FIG. 2 is a sectional view of a child.

FIG. 3 is a cross-sectional view of a solenoid valve unit incorporating a closet according to the present invention.

FIG. 4 is an explanatory diagram of the position of the knob when the closing member is in the state of FIG. 3;

FIG. 5 is a cross-sectional view showing the closing member in a state where the knob is rotated by 90 °.

FIG. 6 is an explanatory diagram of the direction of the knob when the closing member is in the state of FIG. 5;

FIG. 7 is a cross-sectional view showing the closing member in a state where the knob is rotated by 180 °.

FIG. 8 is an explanatory view of the direction of the knob when the closing member is in the state of FIG. 7;

FIG. 9 is a sectional view of a solenoid valve unit.

FIG. 10 is a cross-sectional view of a conventional solenoid valve unit in a fully closed state.

FIG. 11 is an explanatory view showing the direction of a fully closed knob.

FIG. 12 is an explanatory view showing a closing member in a pilot open state.

FIG. 13 is an explanatory diagram showing knob directions in a pilot open state.

FIG. 14 is an explanatory diagram showing a pilot and a closing member in a state where a main gas inlet is fully opened.

FIG. 15 is an explanatory diagram showing directions of knobs in a state where a child is fully opened.

[Explanation of symbols]

 Reference Signs List 20 Closer body 21 Rotor 22 Sliding surface 23 Gas flow path 24 Gas inlet 25 Gas outlet 26 Blocking zone

Claims (1)

(57) [Claims] An electromagnetic valve unit having a gas inlet formed at the bottom of a closing body and a gas outlet formed on a sliding surface, and having an L-shaped gas flow path formed therein. In the closing member, a gas outlet of the gas flow path is formed to have a size having a spread of 180 °, and a center of the outlet and opposed to a pilot gas inlet formed on the solenoid valve unit main body side. A solenoid valve unit closure formed by forming a belt-like pilot gas inlet blocking zone.