KR20110110447A - Open and shut apparatus for gas valve - Google Patents

Abstract

The present invention relates to a gas valve opening and closing device, and according to an aspect of the present invention, in an automatic opening and closing device for a gas valve including a valve knob and a pipe member having a stepped portion and a protrusion, an upper case and a lower case accommodating the valve knob ; A height adjustment part fastened to the upper case and providing a pressing force to press the valve knob toward the pipe member; And a rotatable member rotatably installed between the upper and lower cases, the rotating member being rotated together with the valve knob, and the height adjusting part being provided to be liftable with respect to the upper case so that the pressing force for pressing the valve knob can be adjusted. There is provided a gas valve opening and closing device.

Description

OPEN AND SHUT APPARATUS FOR GAS VALVE}

The present invention relates to a gas valve opening and closing device, and more particularly, to a gas valve opening and closing device that can be commonly used in valve knobs of different manufacturers.

In general, most households use liquefied petroleum gas (LPG gas or city gas) to cook food. Gas pipe or gas pipe is connected to the gas stove (or gas burner) from the outside, and gas valve is installed in the gas pipe connected to the gas stove to block the supply of gas to the gas stove. It is. Such a gas valve has a spring in the valve in which the knob is installed to prevent the valve knob from being rotated arbitrarily, and in order to open the valve while the valve is closed, press the valve knob toward the valve and then move in one direction. Should be turned 90 °. Further, when the valve is closed in the open state of the valve, the valve knob is closed by turning the valve knob 90 ° in the other direction, and in the closed position of the valve, the valve knob protrudes outward by the spring force of the spring provided in the valve. Therefore, the device that automatically opens and closes the gas valve should have a configuration that can provide a force for pressing the valve knob required for opening the gas valve toward the valve.

However, commercially available gas valves have various specifications for each manufacturer, so a single-standard gas valve opening and closing device cannot be commonly used in each home. That is, the pipe member of the gas valve in use may have a cylindrical shape or may have a shape having a rectangular protrusion, and in the case of the valve knob, the specifications are different for each manufacturer, and the valve knob is loosely installed if the valve knob being used is smaller than the specified specification. Since the rotation operation can not be performed precisely, there is a problem to replace the existing gas intermediate valve. However, replacing existing gas valves that do not interfere with their use due to different specifications is a great economic burden for users, and can be considered a waste of resources nationally.

On the other hand, food cooking is performed by operating the ignition switch of the gas stove in the state that the valve is opened, by adjusting the amount of gas supplied to the stove through the gas supply lever to control the state of the flame, that is, the thermal power. However, the conventional gas valve continuously supplies gas to the gas stove even when the user leaves the seat for a long time while cooking food using the gas stove, even when the food overflows from the container and the flame of the gas stove is extinguished. In addition, the gas supplied to the gas stove causes the gas to flow into the house guide due to the opening of the valve provided to the gas stove, causing an accident such as an explosion of the gas.

In order to prevent such an accident, a gas stove has been developed, which has a structure that prevents gas outflow due to the extinguishing of flames by food and shuts off the valve of the gas stove when the food overflows. Since the installed valve was open, the outflow of gas could not be prevented reliably. In order to solve this problem, recently, even when the user does not manually close the valve, a valve opening and closing device for automatically closing the valve after a predetermined time has been made. In Patent No. 10-219443, the opening time is mechanically determined. Disclosed is a valve assembly that is adjustable in structure.

However, such a valve assembly was inconvenient due to excessive operation force when setting the time by simultaneously using the mainspring of the timer as the power source for restoring the valve in terms of construction. By incorporating a pair of timers, there is a problem in that development costs are increased, assembly is difficult, and there is a limit in miniaturization.

The present invention has been made to solve the problems described above, an embodiment of the present invention is screwed, which can adjust the pressing force to push the valve knob toward the valve so that it can be commonly used in the valve knob of different specifications The present invention relates to providing a gas valve opening and closing device having a height adjustment part.

In a preferred embodiment of the present invention, a gas valve automatic opening and closing device consisting of a valve knob and a pipe member having a stepped portion and a protrusion, the upper case and the lower case for receiving the valve knob; A height adjustment part fastened to the upper case and providing a pressing force to press the valve knob toward the pipe member; And a rotatable member rotatably installed between the upper and lower cases, the rotating member being rotated together with the valve knob, and the height adjusting part being provided to be liftable with respect to the upper case so that the pressing force for pressing the valve knob can be adjusted. It provides a gas valve opening and closing device characterized in that.

According to an embodiment of the present invention as described above, first, the pressing force for pressing the stepped portion of the valve knob can be adjusted by using the height adjusting part installed to be elevated on the upper case, so that it can be used for valve knobs having different specifications. Do.

Second, the height adjustment unit is to be screwed with the upper case, it is possible to finely control the pressing force with a simple configuration.

Third, by adding an auxiliary cap to the upper portion of the valve knob, it can be used in a small valve knob, difficult to adjust even the height adjustment unit.

Fourth, by further comprising a fixing jaw in the seating groove of the fixing bracket for fixing the pipe member of the gas valve, it can be used not only when the shape of the pipe member is cylindrical, but also in the pipe member having a rectangular protrusion.

Fifth, the open time can be adjusted by using a timer, so it is possible to use a device more safely such as a gas stove.

Sixth, by adopting the electronic timer method, the structure is simpler than the mechanical timer method, it is possible to implement a slim design and there is an advantage that does not require excessive operation force as in the case of the mechanical type.

1 is an overall perspective view of a gas valve is mounted on the gas valve opening and closing apparatus according to an embodiment of the present invention,
Figure 2 is an exploded perspective view of a gas valve opening and closing apparatus according to an embodiment of the present invention,
Figure 3 is a state of use of the auxiliary cap according to an embodiment of the present invention,
4 is a state diagram used in the fixing bracket according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to describe in detail enough to be able to easily carry out the invention by those skilled in the art to which the present invention belongs, This does not mean that the technical spirit and scope of the present invention is limited.

1 is an overall perspective view of the gas valve opening and closing device 1 according to an embodiment of the present invention equipped with a gas valve, Figure 2 is an exploded perspective view of the gas valve opening and closing device according to an embodiment of the present invention.

Gas valve opening and closing device according to an embodiment of the present invention in the automatic opening and closing device of the gas valve 10 consisting of a valve knob 11 and a pipe member 12 having a stepped portion (11a) and the projection (11b), An upper case 20 and a lower case 30 accommodating the valve knob 11; A height adjusting part 21 fastened to the upper case 20 and providing a pressing force for pressing the valve knob 11 toward the pipe member 12; And a rotating member 40 rotatably installed between the upper and lower cases 20 and 30, and rotated together with the valve knob 11, wherein the height adjusting part 21 is provided. It is installed to be elevated relative to the upper case 20, it is configured so that the pressing force for pressing the valve knob 11 can be adjusted.

In addition, the height adjustment unit 21 and the upper case 20 is provided with a screw groove 22, it is preferable to allow the height adjustment unit 21 is elevated by screwing.

2, the gas valve opening and closing device according to an embodiment of the present invention comprises an upper case 20, a lower case 30, a height adjustment unit 21 and a rotating member (40).

The upper case 20 is provided with a through hole 25 so that the valve knob 11 of the gas valve can be exposed to the outside, the control button 26 and the operating state (battery remaining, etc.) necessary for setting the time LCD display is installed. The through hole 25 is formed in a circular shape so that the valve knob 11 is rotatable, and through the through hole 25, in addition to the operation of the timer, the gas valve may be manually operated when the timer breaks down or the battery is consumed. Opening and closing is also possible. In addition, a removable slide cover 27 is installed to open and close the battery storage groove 31 on the lower case 30, as will be described later.

The lower case 30 has a through hole 25 through which the valve knob 11 can pass, corresponding to the through hole 25 of the upper case 20, and the upper and lower cases 20 and 30. As a result, the valve knob 11 of the gas valve is accommodated. In addition, a circuit board required for automatic opening and closing using an electronic timer and a power supply source for supplying power thereto are needed. An embodiment of the present invention allows a battery storage groove for accommodating batteries by operating by a battery rather than an adapter method ( 31) is provided separately. One embodiment of the present invention requires a power supply of 6V, so that the insertion direction (+ /-) is mounted differently to the left, right, top, and bottom to use the storage space efficiently.

The height adjusting unit 21 is fastened to the upper case 20, the valve knob 11 for opening the gas valve 10 in a manner to adjust the height of the valve knob 11 of the gas valve pipe member Provide a pressing force toward (12). The valve knob 11 generally includes a pair of stepped portions 11a and protrusions 11b protruding upwards therebetween, and the height adjusting portion 21 includes a friction pad 23 and a rotating member which will be described later. It is configured to press the step portion 11a of the valve knob 11 through 40.

However, the valve knob 11 has a different specification for each manufacturer. In other words, the height of the stepped portion 11a of the valve knob 11 may be different, and the thickness and height of the protrusion 11b may also be different. Therefore, in order for the user to use it universally in products of different standards without replacing the valve knob of the gas valve currently being used, the valve knob 11 required for each valve by varying the degree of pressing force for pressing the valve knob 11 is provided. You need to adjust the height of the. Accordingly, the present invention is provided with a height adjustment unit 21 that can be elevated relative to the upper case 20 to adjust the height of the valve knob 11 having different specifications. At this time, the height adjustment unit 21 and the upper case 20 is preferably provided with a screw groove 22 is fastened by screw coupling, through which a simple configuration can be finely adjusted the height of the valve knob 11 Will be.

The rotating member 40 is rotatably installed between the upper and lower cases 20 and 30 so that the valve knob 11 penetrates through the through hole 25 provided in the center. The through hole 25 is formed to correspond to the shape of the protrusion 11b of the valve knob 11 so that the rotating member 40 can be rotated together with the valve knob 11. In order to rotate the valve knob 11, a force for pressing the stepped portion 11a from the top and a force for rotating the protrusion 11b are required. For this purpose, the rotating member 40 is the valve knob 11. A plurality of hooks are applied to the edges of the outer surface of the protrusion 11b to rotate together with the valve knob 11 when the pressure jaw 41 for pressing the stepped portion 11a and the rotary member 40 rotate. It is formed to have a locking jaw (42). In addition, the rotary member 40 is preferably provided with a gear to rotate the valve knob 11 through a drive gear connected to the drive device to be described later.

Gas valve opening and closing device according to an embodiment of the present invention is configured to be further provided with a friction pad 23 to prevent friction with the rotating member 40, the lower portion of the height adjustment unit (21).

In addition, a lower portion of the friction pad 23, a ring band 24 for preventing friction with the rotating member 40 may be further provided.

As shown, a friction pad 23 is provided between the height adjustment portion 21 and the rotating member 40. The friction pad 23 is fixed to the upper case 20 to prevent the rotation of the height adjusting part 21 or the rotating member 40 from being transmitted to each other and to prevent wear. . Therefore, it is preferable to reduce the friction force by applying grease on the friction pad 23. In addition, an additional ring band 24 may be further added to the lower portion of the friction pad 23 so that only the ring band 24 may be replaced when worn, thereby improving durability.

3 is a state diagram used in the auxiliary cap 50 according to an embodiment of the present invention.

Gas valve opening and closing device according to an embodiment of the present invention is a flange portion 51 for pressing the stepped portion (11a) between the rotating member 40 and the valve knob 11, and the protrusion (11b) Auxiliary cap 50 made of the bobbin portion 52 for pressing the side to be further provided.

The auxiliary cap 50 has a flange portion 51 having a shape corresponding to the stepped portion 11a of the valve knob 11 and a bobbin portion 52 corresponding to the lateral shape of the protruding portion 11b. The pressing jaw 41 of the rotating member 40 presses the stepped portion 11a through the flange portion 51, and the locking jaw 42 of the rotating member 40 has the bobbin portion ( 52 transmits a rotational force to the protrusion (11b). Therefore, the auxiliary cap 50 can be used by installing the auxiliary cap 50 on the valve knob 11 even for a valve knob having a size small enough to provide the pressing force necessary for opening by the height adjusting part 21 alone.

4 is a state diagram used in the fixing bracket 60 according to an embodiment of the present invention.

Gas valve opening and closing device according to an embodiment of the present invention, a fixing bracket 60 having a seating groove 61 to allow the pipe member 12 of the gas valve is seated on the bottom surface of the lower case 30 To be further provided.

In addition, the seating groove 61, it is preferable that the fixing jaw 62 is further provided to fix the tube member 12 having a rectangular projection.

The fixing bracket 60 is coupled to the bottom of the lower case 30 to receive the tube member 12 of the gas valve. To this end, there is provided a seating groove 61 in which the pipe member 12 can be seated, and the shape of the seating groove 61 preferably corresponds to the outer surface shape of the pipe member 12 that is installed and fixed. Since the tubular member 12 of the gas valve shown in FIG. 2 has a cylindrical shape, the seating groove 61 may also have an arc shape. However, the tubular member 12 illustrated in FIG. 4 has a rectangular protrusion on the cylindrical side. In using the fixing bracket 60 provided with a seating groove 61 shown in Figure 2 when the installation is not properly fixed to the tube member 12. Therefore, as shown in FIG. 4, it is preferable to further include a fixing jaw 62 at the end of the arc-shaped seating groove 61 so as to fix the tubular member 12 having a rectangular protrusion. This makes it possible to use the valve knob 11 as well as the pipe member 12 without replacing the valve.

Gas valve opening and closing device according to an embodiment of the present invention is connected to the timer and the driving device and the driving device which is operated by sensing the signal of the timer electronically and operating the rotational force to the rotating member 40 It is to be further provided with a rotation transfer device to give.

Gas valve opening and closing device of the present invention is to enable the adjustment of the opening time by using a timer to enable the safe use of a device with a risk of use, such as a gas stove. In particular, the electronic timer method has a simple structure compared to the mechanical timer method so that a slim design can be realized and there is no need for excessive operation force as in the case of the mechanical type.

The driving device is operated according to the operation signal of the timer and a driving motor may be used. In addition, in order to ensure transmission of power or rotation, a rotation transmission device connected to the drive device and the rotation member 40 are constituted by gears, and the rotation transmission device is a drive gear, and the rotation member 40 is driven. You can do it. Therefore, when the drive motor is rotated according to the operation signal by the timer, the drive gear coupled to the rotating shaft is also rotated, the rotary member 40, which is driven gear is rotated together with the valve knob 11 to open the gas valve do. However, the configuration of the driving device, the rotation transmission device and the rotating member is just one example, and other well-known means capable of imparting a rotational force to the rotating member may be added.

Hereinafter will be described the installation process of the gas valve opening and closing device according to an embodiment of the present invention.

First, the height adjusting part 21 is fastened to the upper case 20, and an element necessary for operation including the rotating member 40 is installed in the lower case 30, and then the upper case 20 and the fastening element such as a screw. To combine. Then, the tube member 12 of the valve is inserted into the seating groove 61 of the fixing bracket 60, and the upper and lower cases 20 and 30 and the fixing bracket 60 are fixed by the fastening element. At this time, the valve knob 11 of the gas intermediate valve being used passes through the through holes 25 formed in the upper and lower cases 20 and 30 to be exposed to the outside, and the height of the valve knob 11 is small. If it is difficult to adjust only by (21), the auxiliary cap 50 is put on the upper portion of the valve knob (11).

Next, the valve knob 11 is appropriately pressed toward the gas valve while turning the screwed height adjusting part 21 to the left and right, so that the opening and closing operation can be performed smoothly in the pressed state.

Finally, using the control button 26 to set the automatic opening and closing time.

Gas valve switchgear: 1 Gas valve: 10
Valve Knob: 11 Steps: 11a
Protrusion: 11b Pipe member: 12
Upper case: 20 Height adjustment part: 21
Thread Groove: 22 Friction Pad: 23
Ring Band: 24 Through Hole: 25
Control Buttons: 26 Slide Cover: 27
Lower Case: 30 Battery Storage Groove: 31
Rotary member: 40 Pressing jaw: 41
Jam Jaw: 42 Secondary Cap: 50
Flange: 51 Bobbin: 52
Bracket: 60 Seating groove: 61
Jaw: 62

Claims (8)

In the automatic opening and closing device of a gas valve consisting of a valve knob and a pipe member having a stepped portion and a protrusion,
An upper case and a lower case accommodating the valve knob;
A height adjusting part fastened to the upper case and providing a pressing force to press the valve knob toward the pipe member; And
It is made to include; rotatably installed between the upper and lower cases, the rotating member to rotate with the valve knob,
The height adjustment unit is installed to be elevated to the upper case, the gas valve opening and closing device, characterized in that the pressing force for pressing the valve knob can be adjusted.
The method of claim 1,
The height adjustment unit and the upper case is provided with a screw groove, the gas valve opening and closing device, characterized in that the height adjustment unit is elevated by screwing.
The method of claim 1,
The lower portion of the height adjustment unit, the gas valve opening and closing device further comprises a friction pad for preventing friction with the rotating member.
The method of claim 3,
The lower portion of the friction pad, the gas valve opening and closing device further comprises a ring band for preventing friction with the rotating member.
The method of claim 1,
Between the rotating member and the valve knob, the gas valve opening and closing device further comprises an auxiliary cap consisting of a flange portion for pressing the stepped portion, and a bobbin portion for pressing the side surface of the protruding portion.
The method of claim 1,
The lower surface of the lower case, the gas valve opening and closing device further comprising a fixing bracket having a seating groove for mounting the pipe member of the gas valve.
The method of claim 6,
The seating groove, the gas valve opening and closing device characterized in that the fixing jaw is further provided to fix the pipe member having a rectangular projection.
The method of claim 1,
A gas valve opening and closing is further provided with a timer having an electronically set operating time, a driving device which is activated by sensing a signal of the timer, and a rotation transmission device connected to the driving device to impart rotational force to the rotating member. Device.

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