KR100441206B1 - safety shutoff valve of a built-in gas range - Google Patents

Abstract

The present invention relates to a safety gas valve of a built-in gas range, the switch body is pressed down by the user, the switch body having a conical part facing the vertex and the column portion vertically coupled to the bottom of the conical part, and the switch body A push switch including a spring coupled to the pillar to provide a restoring force; It is placed in the lower direction of the push switch in a horizontal direction, one end is formed with a hook slope plate pressed by the switch body, the other end is formed with a hook projection, between the hook slope plate and the hook projection applied to the hook slope plate A hook joint coupled to a rotating shaft for horizontally rotating the hook protrusion using an external force; A main valve seat pushed and moved by the hook protrusion to open a gas passage; A magnetic power unit for selectively fixing the main valve seat; Provides a safety gas valve of a built-in gas range including a housing for supporting the push switch, hook joint, magnetic power unit and providing a gas passage.

Description

Safety shutoff valve of a built-in gas range

The present invention relates to a built-in gas range, and more particularly to a safety gas valve of the built-in gas range.

1 is a perspective view of a conventional built-in gas range, as shown, the built-in gas range is mounted in such a way that the gas stove 200 is inserted into the cut-out portion of the sink top plate 100, such built-in gas The range is subject to manufacturing constraints due to the thickness of the sink top plate. Typically, the thickness of the sink top plate 100 is about 30mm. Therefore, in order to install the safety gas valve 300 in the built-in gas range 200, the height of the ignition switch should be within 30 mm, the thickness of the top plate of the sink, and must be equipped with a safety gas valve suitable for this height.

2 is a schematic operation configuration diagram of a conventional general gas range, and as shown, the gas range includes a burner 16; A spark plug 17 for igniting the burner; An ignition transformer 18 for controlling the spark plug 17; A thermoelectric sensor 20 that is heated by a gas flame generated by ignition of the burner 16 to generate an electromotive force; It is composed of a safety gas valve 300 to operate the ignition transformer 18, and to control the supply of gas to the burner (16).

Here, the safety gas valve 300 is the push switch 10, the control valve 12 is opened by the lowering of the push switch 10 to supply gas to the burner 16, and the push switch 10 The microswitch 15 for supplying power to the ignition transformer 18 by operation, and the push switch 10 after the opening of the control valve 12 is sequentially opened from the external gas pipe (not shown). The main valve 14 for supplying gas to the control valve 12 and the magnetic power unit (MPU) for maintaining the main valve 14 in the open state by receiving the electromotive force generated from the thermoelectric sensor 20. Has 30).

Referring to the process of operation of the conventional built-in gas range having the above configuration in detail as follows.

First, when the user presses the push switch 10, the push switch 10 moves downward to ground the micro switch 15, and the ignition transformer 18 operates the spark plug 17 by grounding the micro switch. Sparks are generated in the burner 16.

Meanwhile, the push switch 10 descends to sequentially open the control valve 12 and the main valve 14, and gas is introduced through the main valve 14 to the burner 16 via the control valve 12. Will move. At this time, the moved gas is ignited by the spark, and the ignited gas heats the thermoelectric sensor 20 located near the burner 16. When the thermoelectric sensor 20 is heated, the electromotive force is supplied to the magnetic power unit 30, and the magnetic power unit 30 fixes the main valve 14 opened by the push switch 10 to an open state. Allow gas to continue to be supplied.

Accordingly, even if the user removes the force from the push switch 10, the gas range can continue to maintain the ignition state.

On the other hand, when the burner 16 is extinguished, by rotating the control valve 12 to reduce the amount of gas, the burner 16 is extinguished, and when the burner 16 is extinguished, the thermoelectric sensor 20 no longer generates electromotive force. If not, the operation of the magnetic power unit 30 is stopped, and thus the main valve 14 fixed to the magnetic power unit 30 returns to its original position to block the gas.

However, as described above, the gas range operated as described above, since the height of the safety gas valve is limited, the control valve 12, the main valve 14, which is operated by the push switch 10 of the conventional components. The mechanism design for operating the magnetic power unit 30 will be the core of the technology of the built-in gas range.

The invention for solving this problem is disclosed in European Patent No. 1013996, which shows a safety gas valve in FIG. 3, and is rotated by the pusher 40 and the pusher 40 moving vertically. The height problem is solved by adopting a structure having an arc-shaped joint 42 moving in a straight line. However, since the joint 42 performs both rotation and linear movement at the same time, not only excessive friction may occur, but also there is a problem that frequently occurs.

Meanwhile, European Patent No. 10513059 also proposes a safety gas valve for use in a built-in gas range, but the proposed safety gas valve adopts a structure in which a toothed mechanism rotates, but the power transmission method is complicated, and the main valve (Fig. In the process of opening 2) 14), the proposed mechanism may have a problem of being caught or dislocated.

The present invention has been made to solve the above problems, and provides a safety gas valve having a mechanism capable of stably converting the movement of the vertically moving push switch to a horizontal movement without a malfunction, such as jamming or positional deviation. It is for that purpose.

Other objects and effects of the present invention will be understood from the detailed description of the invention and the accompanying drawings.

1 is a schematic perspective view of a conventional built-in gas range

2 is a schematic operation configuration diagram of a conventional general gas range

3 is a front view of a safety gas valve of a conventional built-in gas range;

4 is a schematic perspective view of a safety gas valve of a built-in gas range according to the present invention;

5 is a detailed exploded perspective view of a safety gas valve according to an embodiment of the present invention;

6 is a schematic structural diagram of a gas range to which a safety gas valve according to an embodiment of the present invention is applied;

* Description of Major Symbols in Drawings *

10: push switch 15: micro switch

16: burner 18: ignition transformer

20: thermoelectric sensor 30, 130: magnetic power unit

50: push switch 60: hook joint

70 housing

In order to solve the above problems, the present invention provides a conical portion 52a which is pressed downward by a user and vertically coupled to a bottom portion of the conical portion 52a and a bottom surface of the conical portion 52a. A push switch 50 including a switch body 52 and a spring 54 coupled to the pillar portion 52b of the switch body to provide a restoring force; Lay down in the horizontal direction at the bottom of the push switch 50, one end is formed with a hook slope plate 64 is pressed by the switch body 52, the other end is formed with a hook projection 66, the hook slope plate A hook joint (60) between the (64) and the hook protrusion (66) to which a rotating shaft (62) for horizontally rotating the hook protrusion (66) by using an external force applied to the hook inclined plate (64); A main valve seat 68 which is pushed and moved by the hook protrusion 66 and opens a gas passage; A magnetic power unit (130) for selectively fixing the main valve seat (68); Provides a safety gas valve of a built-in gas range including a housing 70 for supporting the push switch, hook joint, magnetic power unit and providing a gas passage.

A spring for providing a restoring force to the hook joint 60 is connected to the rotation shaft 62.

The housing is sealed so that no gas is released.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Figure 4 is a schematic perspective view for explaining a safety gas valve according to an embodiment of the present invention, the device is a push switch 50 to move downward by the user, and the vertical movement of the push switch 50 in a horizontal rotation A hook joint 60 for converting the motion, a main valve seat 68 pushed by the hook joint 60 to open the gas flow passage, and a magnetic power unit 13 for selectively fixing the main valve seat 68. ) Is included.

The push switch 50 shown in FIG. 4 shows only the switch body 52 and a spring 54 coupled thereto in order to show the characteristics of the present invention, but the upper part of the switch body 52 will be described later. A plurality of components are coupled. The switch body 52 is pressed by the user and serves to rotate the hook joint 60, and a cone portion 52a having a vertex downward and a portion of the cone portion 52a. It is composed of a column portion 52b coupled vertically to the bottom. Although the lower diameter of the column portion 52b is shown in the figure as being larger than the upper diameter, it is not limited thereto. The spring 54 moves the switch body 52 to its original position when the user removes the pressing force from the upper portion. And it is coupled to the pillar portion 52b of the switch body. According to Figure 5, the push switch 50, in addition to the switch body 52 and the spring 54, the control lever coupling portion 51, the switch A lid 55, a flow regulating valve 56, a restoring spring 57, a switch lever 59, etc. The control lever coupling portion 51 includes a switch lever 59 for grounding the micro switch 15. ) And a restoring spring 57 for returning the control lever when the user removes the external force.

On the other hand, the hook joint 60 is placed in the horizontal direction in the lower portion of the push switch 50, the inclined surface of the inclined surface in contact with the switch body conical portion (52a) that moves up and down directly below the switch body 52 ( 64 is located, the hook projection 66 is formed on the opposite side of the hook slope plate (64). A rotating shaft 62 is coupled between the hook tilt plate 64 and the hook protrusion 66 to rotate the hook protrusion 66 by using the pressing force of the switch body 52 applied to the hook tilt plate 64. do.

As the hook joint 60 rotates about the rotation shaft 62 as described above, the hook protrusion 66 pushes the main valve seat 68 to open the gas flow path. On the other hand, the rotation shaft 62 is wound by a spring (not shown) so that the user's external force on the push switch 50 is removed, and when the switch body 52 returns to its original position, it returns to its original position by the elastic force. do.

5 is an exploded view of the safety gas valve according to an embodiment of the present invention, the push switch 50 including a switch body 52, a spring 54, the switch cover 55, the control lever coupling portion 51, etc. And a housing 70 supporting each of the components 50, 60, and 130, a hook joint 60 rotating by the switch body 52 in the housing 70, and the hook joint 60. The main valve seat 68, which is pushed and moved by the hook protrusion 66 of the c), and the magnetic power unit 130 for selectively fixing the main valve seat 68 are illustrated.

The housing 70 is sealed as a passage through which gas moves, and is connected to the switch body 52, the hook joint 60, the magnetic power unit 130, and the magnetic power unit 130 to introduce external gas. The main valve seat 68 is opened inside.

The housing 70 uses an O-ring 75 and a nut 73 to seal the outside of the hook joint 60 to seal the gas.

6 is a schematic cross-sectional view illustrating the position of the housing of FIG. 5, wherein the safety gas valve has a height similar to that of the sink top plate 100, and the housing 70 is located inside the gas range.

Hereinafter, a method of operating an embodiment according to the present invention will be described in more detail with reference to FIG. 5.

First, when the user presses the switch body 52 through the control lever, the switch body 52 is moved to the bottom, the cone 52a at the bottom of the switch body 52 is the hook slope plate 64 of the hook joint 60 Will be pushed. As a result, the hook protrusion 66 positioned on the opposite side of the hook tilt plate 64 about the rotation shaft 62 rotates horizontally to push the main valve seat 68 so that external gas flows into the housing 70. The switch lever 59 coupled to the control lever coupling part 51 is also moved downward by the user to ground the microswitch 15, and the grounded microswitch 15 operates the ignition transformer 18 to burn the burner. Sparks are generated at (16).

Gas opened by the main valve seat 68 and passing through the housing 70 flows into the burner 16 and is ignited by the spark. The ignited gas heats the thermoelectric sensor 20 located near the burner 16, and the heated thermoelectric sensor 20 generates electromotive force so that the magnetic power unit 130 holds and fixes the main valve seat 68. do.

In this way, the gas is ignited, and when the user removes the force, the switch body 52 is returned to its original position by the elastic force of the spring 54, and at the same time, the hook joint 60 is also rotated by the rotation shaft 62 spring ( Not shown).

Thereafter, the gas extinguishing can control the amount of gas flowing into the burner (16 in FIG. 2) by rotating the push switch 50 as in the conventional method, and rotates the push switch 50 to completely turn the gas. If blocked, the flame of burner 16 is extinguished. Since the thermoelectric sensor (20 of FIG. 2) is not supplied with heat, generation of electromotive force is stopped, and thus the operation of the magnetic power unit 130, which was supplied with electromotive force, also stops, so that the main valve seat 68 is a spring 69. By the home position, the supply of gas from outside is stopped.

In the above description of the preferred embodiment of the present invention, this is only an example, and various changes and modifications may be made without departing from the spirit of the present invention, and such changes and modifications also belong to the scope of the present invention. You can understand through.

As described above, the safety gas valve of the built-in gas range according to the present invention has a height problem, which is a limitation of the built-in gas range because it provides a simple operation mechanism for converting the vertical movement of the push switch into the horizontal rotational movement through the hook joint. Solved.

In the present invention, by using a hook joint of a simple configuration, it solves the problem of excessive friction and positional deviation in the operation proposed in the conventional European patent, and also can solve the problem caused by the conventional complex power transmission.

Claims (3)

A switch body 52 which is pressed down by the user and has a conical part 52a having a vertex facing downward and a pillar part 52b vertically coupled to a bottom of the conical part 52a, A push switch 50 coupled to the pillar portion 52b and including a spring 54 for providing a restoring force; Lay down in the horizontal direction at the bottom of the push switch 50, one end is formed with a hook slope plate 64 is pressed by the switch body 52, the other end is formed with a hook projection 66, the hook slope plate A hook joint (60) between the (64) and the hook protrusion (66) to which a rotating shaft (62) for horizontally rotating the hook protrusion (66) by using an external force applied to the hook inclined plate (64); A main valve seat 68 which is pushed and moved by the hook protrusion 66 and opens a gas passage; A magnetic power unit (130) for selectively fixing the main valve seat (68); The housing 70 supports the push switch, the hook joint, the magnetic power unit, and provides a gas flow path. Built-in gas range safety gas valve including a The method of claim 1, Safety gas valve of the built-in gas range is connected to the rotating shaft 62, the spring for providing a restoring force to the hook joint 60 delete