KR200313684Y1 - safety valve unit of built in type gas range - Google Patents

Abstract

The present invention relates to a safety valve unit of the built-in type gas range is simple configuration and improved operation reliability, the safety valve unit of the built-in type gas range according to an embodiment of the present invention is connected to the linear motion of the control switch micro-switch It comprises a linking means for controlling.

The linkage means is a structure that is elastically bent and the contact piece 27 is fastened to the operating shaft 211 of the control switch 21, and is disposed on one side of the operating shaft 211, pressing on one side The micro switch 23 with the contact piece 231 and the tip of the contact piece 27 moving during the linear movement of the operating shaft 211 are guided to the push contact piece 231 side of the micro switch 23. The valve body 28 is provided with an inclined groove 28a.

In addition, the tip of the contact piece 27 passes through the guide hole 29a of the valve cap 29 fastened to the valve body 28 and protrudes toward the micro switch 23 so that the linear movement of the operating shaft 211 occurs. Only contact with the contact piece 231 is separated; The tip of the contact piece 27 has a ring-shaped fastening part 271 having a circular inner circumferential surface, and a part of the tip of the working shaft 211 penetrated to the ring-shaped fastening part 271 is also formed in a circumferential shape, thereby operating shaft. At the time of rotation operation of the 211 is characterized in that the contact piece 27 does not react.

According to the safety valve unit of the built-in gas range according to the present invention as described above, when the control switch is pressed, the spark plug is operated so that the gas is ignited as soon as the gas arrives at the burner, thereby preventing the gas from leaking before ignition. In addition, since the operation of the ignition transformer is controlled through a simple configuration, the operation stability is high, and production costs are lowered.

Description

Safety valve unit of built in type gas range

The present invention relates to a built-in gas range, and more particularly, to a safety valve unit of the built-in type gas range is simple in configuration and improved operation reliability.

As shown in FIG. 1, the built-in type gas range 10 is provided as a basic specification of a house together with kitchen furniture such as a sink S, and is equipped with an optional oven range (not shown). Or, if the user does not select the oven range, a separate storage rack (not shown) is installed below.

Therefore, the built-in gas stove 10 has a thin thickness of about 30 mm which is the same as the thickness of the upper plate in the sink S so that the installation of the oven range or the receiving table in the already standardized sink S can be selectively performed.

Therefore, if the built-in gas stove 10 is used, the kitchen facilities can be harmonized as a whole, and space utilization can be increased because an oven range or a separate storage stand is provided below the gas stove 10. There is a characteristic.

On the other hand, the general configuration of the gas range, as shown in Figure 2, the burner 12 to ignite the flame, the ignition plug 14 for igniting the burner 12, the ignition for controlling the ignition plug 14 It can be seen that the transformer 16 and the safety valve unit 20 which controls the gas supply to the burner 12 while operating the ignition transformer 16.

Here, the safety valve unit 20 is the control switch 21, the control valve 21 is opened by the linear movement of the control switch 21, the control valve 22 for supplying gas to the burner 12, and the control switch 21 The micro switch 23 for supplying power to the ignition transformer 16 by the operation of the control unit and the control switch 21 after the opening of the control valve 22 opens the control valve from the external gas pipe P. A main valve 24 for supplying gas to the 22, a thermoelectric sensor 25 generating an electromotive force by heating by a flame generated from the burner 12, and an electromotive force generated by the thermoelectric sensor 25. It consists of a magnetic power unit (MPU) (26) for receiving the main valve 24 to maintain the open state.

The operation process of the gas range provided in the safety valve unit as described above is as follows.

First, when the user presses the control switch 21 to rotate to the ignition position, the control valve 22 and the main valve 24 are opened so that the gas passes through the main valve 24 and the control valve 22 in sequence to the burner ( Gas supplied to the burner 12 is ignited by the spark plug 14. When the gas is ignited and a predetermined time elapses, the thermoelectric sensor 25 is heated to supply electromotive force to the magnetic power unit 26, and the main valve 24 is kept open by the operation of the magnetic power unit 26. Even if the user releases the control switch 21, the gas is continuously supplied to the burner 12 to continue the ignition state.

At the time of extinguishing, the gas supply to the burner 12 is cut off by closing the control valve 22 by operating the control switch 21. Accordingly, the power supplied from the thermoelectric sensor 25 to the magnetic power unit 26 is supplied. Since the main valve 24 is also returned to its original position and closed, the gas supply is completely shut off.

In this way, the operation of the gas range is controlled by the user operating the control switch 21, among which, according to the rotation operation of the control switch 21, not only the control valve 22 and the main valve 24 are opened. The operation of the spark plug 14 through the ignition transformer 16 is made.

Therefore, the gas range requires an electrical mechanical linkage means for linking the rotation operation of the control switch 21 to the operation of the ignition transformer 16, and as such linkage means detecting a plane formed on the surface of the operating shaft of the control switch. Means (US Pat. No. 4,249,047), means for driving it with a cam mechanism inserted on the working shaft with a standardized limit switch (US Pat. No. 5,094,259), with a rotary resistance wire and brush installed in the circumferential direction Analog rotation angle measuring means for detecting the rotation angle from the resistance value changes according to the rotation angle of the operating shaft (US Patent No. 5,575,638), digital rotation angle measuring means for grasping the rotation value of the operating shaft using an encoder ( US patent registration number 1,215,441).

On the other hand, in the built-in gas range as described above, due to structural constraints, the safety valve unit 20 must be mounted in a so-called vertical type in which the control switch 21 protrudes from the upper surface of the gas range (see FIG. 1). The structure of the safety valve unit 20 should be made compact.

However, in the above-described conventional techniques, since the ignition timing is to be captured from the rotational motion of the control switch 21, the rotation angle measuring means having a complicated structure for detecting the rotational motion is required. Accordingly, the configuration of the safety valve unit 20 is also complicated, the operation stability is lowered, the production cost also increases the problem occurs.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a safety valve unit of a built-in type gas range having an associated means for controlling an ignition transformer in connection with a linear motion of a control switch.

1 is a perspective view showing the appearance of a general built-in gas stove.

2 is a schematic view showing the configuration of a general gas range.

3 is a perspective view showing a safety valve unit of a built-in gas range according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

12: burner 14: spark plug

16: Ignition transformer 20: Safety valve unit

21: control switch 211: operating shaft

22: control valve 23: micro switch

231: push contact piece 24: main valve

25: thermoelectric sensor 26: magnetic power unit

27: contact piece 271: ring-shaped fastening part

28: valve body 28a: inclined groove

29: valve cap 29a: guide hole

30: Preload spring 31: Stop ring

The safety valve unit of the built-in gas range provided to achieve the above object is characterized in that it comprises a linking means for controlling the micro switch in connection with the linear movement of the control switch.

The linkage means is a structure that is elastically bent, the contact piece is fastened to the operating shaft of the control switch only one end, disposed on one side of the operating shaft, the micro switch is provided with a pressing contact piece on one side, the linear motion of the operating shaft The valve body is provided with an inclined groove for guiding the tip of the contact piece, which moves in time, toward the push contact piece side of the micro switch.

And, the front end of the contact piece is projected toward the micro switch by passing through the guide hole of the valve cap which is fastened to the valve body to be in contact with the pressing contact piece only during the linear movement of the operating shaft; The tip of the contact piece is composed of a ring-shaped fastening portion having a circular inner circumferential surface, and the tip portion of the working shaft to be fastened through the ring-shaped fastening portion is also formed in a circumferential shape, characterized in that the contact piece does not react during the rotation operation of the working shaft.

Hereinafter, with reference to the accompanying Figure 3 of an embodiment of the present invention will be described in detail.

The safety valve unit of the built-in gas range according to the embodiment of the present invention includes an associated means for controlling the ignition transformer in association with the linear motion of the control switch.

The linking means is a structure that is elastically bent as shown in the figure, the contact piece 27 is fastened to the operating shaft 211 of the control switch 21 and disposed on one side of the operating shaft 211 And the front end of the micro switch 23 having the push contact piece 231 on one side and the contact piece 27 moving during the linear movement of the operating shaft 211, the push contact piece 231 of the micro switch 23. It consists of a valve body 28 is provided with an inclined groove (28a) leading to the side.

Such a safety valve unit according to the present embodiment, the operation valve 211 is mounted in the state in which the control valve 22 is inserted in the valve body 28, the valve cap 29 is attached thereon, the operation The preload spring 30 and the contact piece 27 and the stop ring 31 are inserted into the shaft 211 in order, and the stop ring 31 is fitted and fixed in the middle of the operating shaft 211. .

In addition, the lower end of the contact piece 27 passes through the guide hole 29a of the valve cap 29 fastened to the valve body 28 and protrudes toward the micro switch 23 to form an inclined groove of the valve body 28. In contact with 28a, the micro switch 23 is mounted to the valve body 28 so that the push contact piece 231 faces the inclined groove 28a side.

The contact piece 27 and the operating shaft 211 is fastened in such a manner that the operating shaft 211 penetrates through the ring-shaped fastening part 271 configured at the upper end of the contact piece 27, and the ring-shaped fastening part 271 is provided. The inner circumferential surface of the is formed in a circular, a predetermined portion of the operating shaft 211 in contact with this is configured in a cylindrical shape.

A locking protrusion 212 protruding in the horizontal direction is formed at a lower end of the operating shaft 211, and the locking protrusion 212 is inserted into a locking slot 22a formed at an upper end of the control valve 22.

Referring to the operation of the safety valve unit according to an embodiment of the present invention configured as described above are as follows.

First, when the user presses the control switch 21 with a force exceeding the elastic force of the preload spring 30, the preload spring 30 is compressed, the operating shaft 211 is linearly moved, the operating shaft 211 The contact piece 27 is also moved by the stop ring 31 that is engaged and mounted together.

At this time, since the lower end of the contact piece 27 is in contact with the inclined groove 28a of the valve body 28, it is guided by the inclined groove 28a and elastically bent to slide in the horizontal direction, and the micro switch 23 Press the contact piece 231 of the micro switch 23 to operate.

Accordingly, power is supplied from the ignition transformer 16 (see FIG. 2) connected to the micro switch 23 to the spark plug 14 (see FIG. 2) to generate sparks.

Subsequently, when the control switch 21 is rotated, gas is supplied to the burner 12 (see FIG. 2) by opening the control valve 22 and the main valve 24 connected to the operation shaft 211, and at this time, the ignition Since the spark is generated in the plug 14, the gas is ignited in the burner 12, and the main valve (3) is operated by the operation of the magnetic power unit 26 by the thermoelectric sensor 25 (see FIG. 2). Ignition is continued by keeping 24 open.

That is, according to the embodiment of the present invention, since the ignition transformer 16 is controlled by the linking means having a simple mechanical configuration, not only the operation stability is improved but also the ignition plug 14 when the control switch 21 is pressed. ) Is activated and the gas is ignited as soon as it reaches the burner 12, thereby preventing the gas from leaking before ignition.

As described above, the safety valve unit of the built-in type gas range according to the present invention controls the operation of the ignition transformer through a simple linking means, so that the operation stability is high and the production cost is low, thereby improving the productability and productivity of the gas range. It provides an advantage in helping.

Claims (3)

Control switch, A control valve which is opened by linear movement of the control switch and supplies gas to the burner; Micro switch which supplies power to ignition transformer by operation of control switch, A main valve which is opened by a control switch after the opening of the control valve so that gas is supplied from the external gas pipe to the control valve; A thermoelectric sensor that generates electromotive force by being heated by a flame generated from the burner, A magnetic power unit that receives the electromotive force generated by the thermoelectric sensor and maintains the main valve open; Linking means for controlling micro switch in connection with linear movement of control switch Safety valve unit of a built-in gas range comprising a. The method of claim 1, wherein the linkage means An elastically bent structure, the contact piece of which only one end is fastened to the operating shaft of the control switch, A micro switch disposed on one side of the working shaft and provided with a pressing contact piece on one side; Valve body provided with an inclined groove for guiding the tip of the moving contact piece during the linear movement of the operating shaft toward the pressing contact piece side of the micro switch Safety valve unit of a built-in gas range, characterized in that consisting of. 3. The contact tip according to claim 2, wherein the tip of the contact piece passes through the guide hole of the valve cap fastened to the valve body and protrudes toward the micro switch so that the contact piece is separated from the push contact piece only during linear movement of the operating shaft; The tip of the contact piece is formed with a ring-shaped fastening portion having a circular inner circumferential surface, and the tip portion of the working shaft to be fastened through the ring-shaped fastening portion is also formed in a circumferential shape, so that the contact piece does not react during the rotation operation of the working shaft. Gas valve safety valve unit.