KR200440815Y1 - Gas-blast circuit breaker - Google Patents

Abstract

The present invention relates to a gas circuit breaker, and more particularly to a gas circuit breaker that is automatic and manual switching smoothly as the valve binding port and the valve rotary port is made in the state of fastening with each other during automatic operation and manual operation.

The present invention is provided with an upper case on the upper side and a lower case with a reduction gear that is geared to the motor inside the gear, and a gas consisting of a control means for opening and closing the shut-off valve mounted to the gas supply pipe is installed inside the lower case In the circuit breaker, the adjustment means is a hollow through which the lower side is bound to the shut-off valve 20 through the central portion of the lower case 10, the valve engagement port formed with a locking step 32 at regular intervals on the inner peripheral surface 30; One side is inserted into the valve binding port 30, the fastening jaw 36 is formed on one side outer peripheral surface so as to hang over the locking jaw 32, is spaced apart from the upper side of the fastening jaw (36) A valve rotating hole (35) formed along the outer circumferential surface thereof (37); A fastening tooth 41 is formed on the upper side so that the fastening teeth 37 of the valve rotation hole 35 are fastened, and an outer circumferential surface of the valve fastening hole 30 penetrates the valve fastening hole 30. A drive plate 40 gear connected; It is provided between one side of the coupling teeth 37 of the valve rotation hole 35 and the upper case 12 is composed of an elastic spring 45 for pressing the valve rotation hole 35 with an elastic force. It is done.

Shut-off valve, valve binding port, valve rotation port, locking jaw, tightening jaw, drive plate, elastic spring

Description

Gas circuit breaker {GAS-BLAST CIRCUIT BREAKER}

The present invention relates to a gas circuit breaker, and more particularly to a gas circuit breaker that is automatic and manual switching smoothly as the valve binding port and the valve rotary port is made in the state of fastening with each other during automatic operation and manual operation.

In general, a cooking apparatus such as a gas range, a gas oven using a gas such as LPG, LNG, or a heating apparatus such as a gas boiler is widely used. Such gas equipment is connected to the outdoor gas tank or the gas tank of the city gas construction by pipes to receive gas, and a shutoff valve is installed between the gas device and the outdoor gas tank or the gas device and the gas tank of the city gas construction. This allows the user to choose the gas supply and shut off.

When cooking using a gas range, the user opens the shutoff valve to supply gas to the gas appliance, ignites the gas supplied using the ignition device installed in the gas appliance, and after the use of the gas appliance is completed, Close and extinguish the ignition device installed in the gas appliance, and shut off the gas supply by closing the shut-off valve. In other words, if gas leaks from gas equipment, there is a risk of explosion, etc., so that an intermediate shut-off valve is installed in the ignition device and gas pipe installed in the gas equipment to perform the secondary gas shut-off even when the gas range is not used. do.

However, there is a hassle to open and close the shutoff valve every time a gas appliance is used, and most of them use gas appliances such as gas ranges without operating the shutoff valve. It is a factor.

Accordingly, various types of gas circuit breakers have been developed to detect gas leaks, flames, overheating conditions, etc. and automatically shut off the gas by blocking the valve to prevent gas leakage or fire when using the gas appliance.

However, the conventional gas circuit breaker can open and close the shut-off valve automatically by the operation of the motor, but has a structure that can not be manually operated, there is a problem that can not open and close the shut-off valve because the motor can not operate during power failure. .

In order to solve the above problems, Utility Model Registration No. 278085 and Registration Utility Model No. 39807 have been disclosed to enable automatic and manual operation when supplying or shutting off the gas so that the gas is safely shut off even in an emergency.

The registration utility model No. 278085 has a connection ring coupled to the coupling portion formed in the protrusion of the ball valve, the lifting body is coupled to the connection ring up / down flow, one side of the lifting body is provided with an arc-shaped fan-shaped gear Is connected to the drive motor by the gear coupling, the lifting body is provided to flow by the spring to enable automatic and manual.

However, the above technique is artificial in the gear bite state as the manual operation is made by the spring by rotating the lifting body in the artificially pulled state and then releasing it so that the arc-shaped fan gear is caught by the small gear again. In case of pulling with a considerable force, as well as pulling and manually operating after pulling out the pulled force, there is a disadvantage that the arc-shaped fan gear and the small gear are not easily engaged so that the automatic operation is not executed later. The structure that allows the fan gear to flow up and down has a disadvantage in that the outer diameter of the lifting body becomes large.

In addition, the Utility Model No. 39807 discloses that an adjustment member for rotating the shutoff valve is coupled to the shutoff valve through the driving wheel, and the guide bar of the adjustment member is coupled to the seating groove of the driving wheel. As the adjustment member flows inside the drive wheel, automatic and manual operation is possible.

However, the above technique is to be manufactured by the separate adjustment of the isolation valve and then to be combined with the adjustment member as the adjustment member is formed of a pin of a predetermined length due to the manufacturing cost of the isolation valve and compatibility with the existing isolation valve The range of use thereof is limited, and there is a disadvantage in that the user has a double burden when using the gas pipe installation and the construction of a gas circuit breaker or a manufacturer different from each other.

The present invention has been devised to solve the above problems, the object of the present invention can be expected smooth and manual operation as the manual operation is made in the state in which the valve binding port and the valve rotation port is fastened to each other as in the automatic operation. In addition, the present invention can be applied to a conventional shut-off valve to increase the user's reliability of the product, and to provide a gas circuit breaker that can reduce the burden, such as purchase costs.

The structure of the present invention for achieving the above object, the upper case is provided with an upper case and a lower case with a reduction gear that is geared to the motor therein, and a shut-off valve installed in the gas supply pipe installed in the lower case In the gas circuit breaker comprising a control means for opening and closing the control means, through the central portion of the lower case 10 in a hollow form that the lower side is bound to the shut-off valve 20, at a predetermined interval on the inner peripheral surface A valve binding port 30 having a locking jaw 32 formed therein; One side is inserted into the valve binding port 30, the fastening jaw 36 is formed on one side outer peripheral surface so as to hang over the locking jaw 32, is spaced apart from the upper side of the fastening jaw (36) A valve rotating hole (35) formed along the outer circumferential surface thereof (37); A fastening tooth 41 is formed on the upper side so that the fastening teeth 37 of the valve rotation hole 35 are fastened, and an outer circumferential surface of the valve fastening hole 30 penetrates the valve fastening hole 30. A drive plate 40 gear connected; It is provided between one side of the coupling teeth 37 of the valve rotation hole 35 and the upper case 12 is composed of an elastic spring 45 for pressing the valve rotation sphere 35 with an elastic force. It is done.

Here, the upper side of the upper case 12 is provided with a cover body 50 for covering the upper case 12 in a state coupled to the valve rotation hole 35, the lower case 10 is Limit switches 55 installed at intervals of 90 ° along the rotational trajectory of the valve rotation hole 35 and sensing protrusions protruding from the outer circumferential surface of the valve rotation hole 35 so as to contact the limit switch 55. 38) is further provided.

According to the present invention as described above, in the same manner as in the automatic operation, the valve binding port and the valve rotation port in the automatic operation after manual operation by pulling only the valve rotation port and manually operated in the state where the valve binding port and the valve rotation port are fastened to each other. It is expected that smooth manual and automatic operation will be expected because there is no twisting or binding, and it can be applied to the existing shut-off valve, so that users can not only increase the reliability of the product but also purchase cost. It can reduce the installation burden of the product.

Hereinafter, with reference to the accompanying drawings will be described in detail the gas circuit breaker of the present invention.

1 is a separated state diagram showing a gas circuit breaker according to the present invention, Figure 2 is a cross-sectional view showing a valve binding hole according to the present invention, Figure 3 is a plan view of Figure 2, Figure 4 is a valve rotation opening according to the present invention It is sectional drawing shown, FIG. 5 is a bottom view of FIG. 4, FIG. 6 is sectional drawing of the gas circuit breaker by this invention, FIG. 7 is sectional drawing of the state which raised the cover body by the manual operation in FIG.

As shown in the drawings, the gas circuit breaker according to the present invention is provided with an upper case 12 on the upper side and a lower case 10 having a reduction gear 16 geared to the motor 14 therein, and It is installed in the lower case 10 includes a control means for opening and closing the shut-off valve 20 mounted on the gas supply pipe (22).

Here, the motor 14 and the reduction gear 16 is mounted in the lower case 10, the reduction gear 16 is composed of a plurality of gears as shown in Figure 1, the motor 14 ), One gear is connected, and the other gear is geared to the driving plate 40 to be described later after the last gear is connected to each other.

In the present invention, the configuration and connection relations of the upper case 12, the lower case 10, the motor 14, and the reduction gear 16 will not be described any more in relation to the known art, hereinafter, the adjusting means. This will be described in detail.

The adjustment means of the main feature configuration of the present invention penetrates through the central portion of the lower case 10, the valve binding port 30 of the hollow bottom binding to the shut-off valve 20, and the valve binding port ( The valve rotation hole 35, one side of which is inserted into the inside of the 30, a drive plate 40 connected to the valve rotation hole 35 in a gear system, and the valve rotation hole (3) in the drive plate 40. 35 is composed of an elastic spring 45 for pressing the elastic force.

The locking jaw 32 is formed on the inner circumferential surface of the valve engagement port 30 at regular intervals, and the locking jaw 36 is formed on the outer circumferential surface of the valve rotation hole 35 to be fastened to the locking jaw 32. The fastening jaw 36 is formed only near one end of the valve rotation hole 35.

In addition, the coupling teeth 37 having a larger outer diameter trajectory than the outermost diameter of the trajectory forming the fastening jaw 36 is formed along the outer circumferential surface of the fastening jaw 36, and the driving plate 40. ), The center portion penetrates through the valve engagement hole 30 in a state where the engagement teeth 41 are formed at the upper side so that the engagement teeth 37 are engaged, and an outer circumferential surface thereof is connected to the reduction gear 16.

At this time, the elastic spring 45 is provided between one side of the binding teeth 37 of the valve rotation hole 35 and the upper case 12 so as to pressurize the valve rotation hole 35. By fastening the 37 to the fastening teeth 41, the drive plate 40 is rotated when the motor 14 is driven, thereby rotating the valve rotation hole 35 to rotate the valve engagement hole 30. By doing so it is possible to rotate the shut-off valve 20.

On the other hand, the upper side of the upper case 12 is provided with a cover body 50 for covering the upper case 12 in a state coupled to the valve rotation hole 35 to enhance the appearance of the product quality, etc. In addition to preventing the introduction of foreign matter unnecessary to prevent the damage of parts such as the reduction gear (16) in advance.

In addition, the lower case 10 to recognize the opening and closing state of the shut-off valve 20 and to detect the rotation amount of the drive plate 40 in the lower case 10 of the 90 ° along the rotational trajectory of the valve rotation hole 35 Limit switches 55 are installed at intervals, and the sensing protrusion 38 is formed to protrude from the outer circumferential surface of the valve rotation hole 35 so as to contact the limit switches 55.

Looking at the operation and effects of the present invention configured as described above, when the first automatic operation, the locking jaw 36 of the valve rotation port 35 is in a state spanning the locking jaw 32 of the valve binding port 30 In addition, the binding teeth 37 are in a state of being fastened to the fastening teeth 41 of the driving plate 40. Accordingly, when the motor 14 is driven, the driving plate 40 connected to the reduction gear 16 is rotated to rotate in conjunction with the valve rotation hole 35 and the valve engagement port 30 to shut off the valve 20. Will be opened and closed.

In this case, the sensing protrusion 38 provided in the valve rotation hole 35 is rotated by the driving plate 40 which is operated when gas leakage is detected by the sensor in contact with one of the limit switches 55. Another limit switch 55 will be in contact.

Next, in the case of manual operation, when the user pulls the cover body 50, the valve rotation hole 35 is drawn out while being bound to the valve engagement port 30.

At this time, the coupling teeth 37 of the valve rotation hole 35 is separated from the coupling teeth 41 of the driving plate 40 in a state capable of independent rotation, not rotation according to the driving of the motor 14. In this state, when the user rotates the cover body 50, the valve engagement port 30 is interlocked to rotate the shutoff valve 20.

As such, the present invention is a useful design that not only makes automatic and manual operation easy, but also enables the user to obtain high reliability with accurate operation even when switching to each operation.

1 is a separated state showing a gas circuit breaker according to the present invention,

Figure 2 is a cross-sectional view showing a valve binding sphere according to the present invention,

3 is a plan view of FIG.

Figure 4 is a cross-sectional view showing a valve rotation hole according to the present invention,

5 is a bottom view of FIG. 4;

6 is a cross-sectional view of the gas circuit breaker according to the present invention,

FIG. 7 is a sectional view of the cover body being raised in accordance with manual operation in FIG. 6; FIG.

<Description of Symbols for Main Parts of Drawings>

10: lower case 12: upper case

14: motor 16: reduction gear

20: shut-off valve 22: gas supply pipe

30: valve binding port 32: locking jaw

35: valve rotation hole 36: tightening jaw

37: Cogwheel 38: Detection protrusion

40: drive plate 41: fastening tooth

45: elastic spring 50: cover body

55: limit switch

Claims (2)

In the gas circuit breaker comprising an upper case is provided on the upper side and a lower case with a reduction gear gear connected to the motor therein, and an adjustment means for opening and closing the shut-off valve installed in the gas supply pipe in the lower case , The adjusting means is a hollow through which the lower side is bound to the shut-off valve 20 by penetrating the central portion of the lower case 10, the valve engaging port 30 is formed with a locking jaw 32 at regular intervals on the inner circumferential surface; ; One side is inserted into the valve binding port 30, the fastening jaw 36 is formed on one side outer peripheral surface so as to hang over the locking jaw 32, is spaced apart from the upper side of the fastening jaw (36) A valve rotating hole (35) formed along the outer circumferential surface thereof (37); A fastening tooth 41 is formed on the upper side so that the fastening teeth 37 of the valve rotation hole 35 are fastened, and an outer circumferential surface of the valve fastening hole 30 penetrates the valve fastening hole 30. A drive plate 40 gear connected; It is provided between one side of the coupling teeth 37 of the valve rotation hole 35 and the upper case 12 is composed of an elastic spring 45 for pressing the valve rotation hole 35 with an elastic force. Gas circuit breaker. The method of claim 1, The upper side of the upper case 12 is provided with a cover body 50 for covering the upper case 12 in a state coupled to the valve rotation hole 35, The lower case 10 has a limit switch 55 which is installed at intervals of 90 ° along the rotational trajectory of the valve rotation hole 35 and the valve rotation hole 35 so as to contact the limit switch 55. Gas circuit breaker, characterized in that the sensing protrusion 38 is further provided on the outer peripheral surface.

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