KR20000074260A - Electric gas-blast circuit breaker - Google Patents

Abstract

PURPOSE: A gas circuit breaker of motor type is prevented the damage thereof due to an external pressure and is tightly fixed on a gas pipe. CONSTITUTION: A gas circuit breaker of motor type includes a main body(11), a square plate-shaped driving plate(6) and an operating device. The driving plate(6) has a fixed hole(61) corresponding with a hooking portion(22) on the rotatory axis of a ball valve(2). The fixed band catching devices(13,14) protrude from both edges of a main body(11). At the upper edge of the actuating device(5) is formed a nut part(51) and at the lower edge of the actuating device(5) is formed an expanded pipe part(52). The expanded pipe part(51) has a quadrangle-shaped groove(53) corresponding with the driving plate(6). A cover(9) assumes the shape of 'U' to cover a portion of a gas pipeline(3). The ball valve(2), the cover(9) and the fixed band catching devices(13,14) are protruded from and formed at both sides of the lower portion of the main body(11) of the gas-blast(1).

Description

Electric gas-blast circuit breaker

The present invention relates to an electric gas circuit breaker anyone can easily see the rotary shaft of the electric gas circuit breaker is installed on the gas pipe in order to automatically shut off the ball valve installed on the gas pipe in the event of a gas leakage or fire in more detail. It can be installed to coincide with the axis of rotation of the valve, and the gas circuit breaker and the rotation axis of the ball valve can be directly connected so that the rotational force of the motor in the gas circuit breaker can be directly transmitted to the axis of rotation of the ball valve. The ball valve can be operated correctly and at the same time can be easily installed in a narrow place as well as embedded in the wall, etc. In particular, it is invented to maintain a firm fixed state.

In general, in addition to a manual valve that can be directly operated by a user on a gas pipe (i.e., a gas pipe) that uses gas as a fuel, it is safe to block the continuous supply of gas to the gas device in case of gas leakage or fire. As a device, a ball valve with a handle and an electric gas circuit breaker are further installed.

At this time, the electric gas circuit breaker as shown in Figure 6, the electric motor and the reducer (shown in the hollow rectangular box body 11 formed with a fixed band (8) locking hole 13 protruding integrally on one side bottom) Is omitted), and an operating lever 15 capable of selectively operating the handle 23 of the ball valve 2 is provided on the rotating shaft protruding outward.

Such an electric gas circuit breaker is controlled by an output signal of a controller connected to a gas detection sensor and a fire detection sensor, and a ball valve installed on the gas pipe is normally opened when gas leakage and fire are not generated. While maintaining the state, when a predetermined output signal is generated from the control unit due to the leakage of gas or the occurrence of a fire, it is activated so that its operating lever turns the handle of the ball valve to shut off the gas supply to the gas appliance itself.

However, in order to operate the ball valve installed on the gas pipe correctly when gas leakage and fire occurs as described above, the gas circuit breaker must be fixedly installed on the gas pipe in a state in which the rotation axis of the gas circuit breaker and the rotation axis of the ball valve coincide. do.

However, the conventional gas circuit breaker is not provided with any structure for mutually matching these rotation shafts, and the gas pipe 3 through the fixing band 8 is provided with a catching hole 13 protruding from the bottom of one side of the main body 11. In the case of installing the gas circuit breaker in the above, the rotational axis of the ball valve 2 and the rotational axis of the gas circuit breaker often do not coincide with each other.

That is, when the gas circuit breaker is installed in the gas pipe, the axis of rotation thereof must coincide with the axis of rotation of the ball valve so that the operating lever fixed at one end on the axis of rotation of the gas circuit breaker correctly rotates the handle of the ball valve so that the ball valve can be surely opened. In the conventional gas circuit breaker, there are no structures that coincide with these rotational shafts, so even if a person skilled in the art can visually match the rotational shafts with each other, it is very difficult to install the gas circuit breaker on the gas pipe. In the case of installing the gas circuit breaker in such a state that the rotation shaft of the gas valve does not coincide with each other, the ball valve does not completely shut off the gas pipe even if the gas circuit breaker is operated due to the leakage or fire of actual gas. Due to the occurrence of a safety accident such as an explosion Adjuster there is a possibility that a problem such as that leads to massive damage of life and property damage occurred.

In addition, since a relatively large operating lever and a handle are installed on the rotation axis of the gas circuit breaker and the ball valve, the production cost of the product is increased, and when the gas circuit breaker and the ball valve are operated due to the leakage of gas or the occurrence of a fire. Since the operating lever and the handle rotate in a large circle, install the gas pipe itself at a distance of more than a certain distance from the wall and install the gas circuit breaker above the pipe, or install the pipe itself on the wall and install the gas circuit breaker. It must be installed to protrude to the front of the (i.e., because the pipe and gas blocker can not be embedded in the wall) there are safety problems due to external pressure and appearance is not beautiful.

In addition, since only one locking hole protrudes toward the bottom of the main body of the gas circuit breaker, when the gas circuit breaker is installed on the gas pipe, the opposite side of the locking hole is kept open and the pressure is applied when the pressure is applied from the outside. Not only can the bulb be damaged, but the ball valve is operated when the gas breaker is activated because the gas shaft is rotated and the center of the ball shaft is mutually matched. There is a fear that the piping may not be completely blocked, leading to the occurrence of safety accidents such as explosions.

The present invention has been made to solve the above-mentioned conventional problems, and when installing the electric gas circuit breaker on the gas pipe, anyone can easily match the rotational axis and the rotational axis of the ball valve, as well as the operation of the gas circuit breaker The internal motor torque is transmitted directly to the rotating shaft of the ball valve to operate the ball valve more precisely, and the gas pipe and gas circuit breaker can be embedded in the wall to prevent damage due to external pressure. An object of the present invention is to provide an electric gas circuit breaker capable of maintaining a beautiful appearance and fixing both bottoms of the main body on a gas pipe to maintain a firm fixed state.

The above object of the present invention is to install an electric motor and a reducer inside a hollow rectangular box-shaped body in which a fixed band locking mechanism is integrally protruded from one side of the bottom, and installed on a gas pipe on a rotating shaft protruding outside the center of the bottom of the body. An electric gas circuit breaker having a configuration in which an operation means for selectively operating a handle of a ball valve is installed and operated by a predetermined output signal from the controller due to leakage of gas or occurrence of fire; Safety device for gas appliances with ball valves, etc., having one end fixed to the handle through a nut on a rotating shaft having a locking part having a straight part on both sides, and directly connected to the gas pipe, the opening and closing of which is controlled by a gas circuit breaker. In the rotating shaft of the ball valve is provided with a square plate-shaped rotating plate having a fixed hole corresponding to the locking portion of the ball valve, and the fixing band locking hole integrally formed on the other side of the bottom of the main body of the electric gas circuit breaker The actuating means is provided with a nut portion coupled to the rotary shaft of the gas circuit breaker at an upper end thereof, and an expansion part having a rectangular settling groove into which the pivoting plate is fitted to the lower end thereof. This can be achieved by installing a cover on the bottom of the main body, a part of the ball valve and the gas piping.

That is, the operation lever and the handle, which are installed on the rotary shafts of the conventional electric gas circuit breaker and the ball valve, respectively, are removed, and the operating means and the rotary plate having the bolt and the expansion pipe are respectively installed on the rotary shafts and directly connected to each other. The basic purpose can be attained by integrally protruding the fixing band latching hole at the bottom of the other side, and, if necessary, by installing a cover at the bottom of the main body of the gas circuit breaker and a part of the ball valve and the gas pipe. Can achieve its objectives.

Therefore, when installing the gas circuit breaker, anyone can easily match its rotational axis with the rotational axis of the ball valve, and when the gas circuit breaker is operated, the motor rotational force is transmitted directly to the rotational axis of the ball valve, so that the ball valve can be operated more accurately. In addition, gas pipes and gas circuit breakers can be embedded in the wall to prevent damage caused by external pressure as well as to keep the exterior of the building in a beautiful state, and both bottoms of the main body are directly fixed on the gas pipes. It can maintain a solid fixed state.

1 is a perspective view of a state in which a gas valve and a ball valve provided on a gas pipe are separated from each other.

Figure 2 is a sectional view of the main portion of the installation of the gas circuit breaker of the present invention.

Figure 3 is an exploded perspective view of the main portion of the gas circuit breaker of the present invention.

4 is an exemplary view of a state in which the gas circuit breaker of the present invention is applied to a gas range system.

Figure 5 is a side cross-sectional view showing a state in which the gas blocker of the present invention is embedded in a wall and a cover is installed.

6 is a conventional gas shutoff

A perspective view of the ball valves installed on the gas and gas pipes separated from each other.

Explanation of symbols on the main parts of the drawings

1: gas circuit breaker 2: ball valve

3: gas piping 4: control part

5: operating means 6: rotating plate

8: fixed band 9: cover

11: body 12, 21: rotation axis

13,14: fixing band locking mouth 22: locking part

51 nut part 52 expansion part

53: settling groove 61: fixing hole

Hereinafter, preferred embodiments of the present invention will be described in detail by the accompanying drawings.

1 is a perspective view showing a state in which a gas valve and a ball valve installed on a gas pipe are separated from each other, FIG. 2 is a sectional view showing main parts of an installed state of a gas circuit breaker of the present invention, and FIG. 3 is a gas circuit breaker of the present invention. 4 shows an exploded perspective view of main parts, and FIG. 4 shows an exemplary view of a state in which the gas circuit breaker of the present invention is applied to a gas range system, and FIG. 5 illustrates a state in which the gas circuit breaker of the present invention is embedded in a wall and a cover is installed. The cross section is shown.

According to this, the electric motor and the reducer are installed inside the hollow rectangular box-shaped body 11 in which the fixing band 8 and the locking hole 13 are integrally protruded from one side of the bottom, and protrude outward from the center of the bottom of the main body 11. On the rotating shaft (12) has a configuration in which the operating means (5) for selectively operating the handle of the ball valve (2) installed on the gas pipe (3) is installed, the leakage of gas or the occurrence of fire, etc. The electric gas circuit breaker 1 is operated by the predetermined output signal generated by the control unit 4 by this;

One end of the handle is fixed to the rotary shaft 21 through which the engaging portion 22 having the straight portion is formed on both sides is fixedly connected to the gas pipe 3 by the nut and directly opened and closed by the gas circuit breaker 1. In the safety device of a gas appliance provided with a ball valve (2), etc.,

On the rotating shaft of the ball valve (2) is provided with a square plate-shaped rotary plate 6 having a fixing hole 61 of a shape corresponding to the locking portion 22 thereof,

In addition, the fixing band locking port 14 is integrally formed on the other side of the bottom of the main body of the electric gas circuit breaker 1,

The actuating means 5 has a nut part 51 coupled to the rotary shaft 12 of the gas circuit breaker 1 at an upper end thereof, and a rectangular settle groove 53 in which the rotary plate 6 is fitted to the lower end thereof. It is a basic feature to have the structure which provided the expansion pipe | tube part 52 provided integrally.

In addition, "U" to enclose a pair of catching holes 13 and 14, the ball valve 2 and the gas pipe 3, which are integrally protruded from both sides of the bottom of the main body 11 of the gas circuit breaker (1). "An additional feature is that the cover 9 is shaped into a shape.

Referring to the effects of the present invention configured as described above are as follows.

First, since the internal configurations of the electric gas circuit breaker 1 and the ball valve 2 and their operation relations are the same as in the prior art, detailed descriptions are omitted.

However, the present invention is coupled to the rotary shaft 12 of the main body 11 of the gas circuit breaker 1, the operating means (5), the main body to fix the gas circuit breaker (1) on the gas pipe (3) 11 is characterized in that the shape of the handle for rotating the rotation band 21 of the fixing band 8, the locking hole (13) 14 and protruding from the bottom of the ball valve (2), characterized in that the The actuating means 5 has a nut part 51 coupled to the rotary shaft 12 of the gas circuit breaker 1 at the upper end thereof, and a square plate type coupled to the pivot shaft 21 of the ball valve 2 at the lower end thereof. It has a structure which integrally provided with the expansion pipe | tube 52 provided with the square settled groove 53 in which the rotary plate 6 of the said holder is fitted.

At this time, the overall length of the operating means 5 is the expansion portion 52 is installed on the gas pipe 3 in a state in which the nut portion 51 is coupled to the rotary shaft 12 of the gas circuit breaker 1. The rectangular shape formed in the expansion part 52 of the operation means 5 when the gas circuit breaker 1 is installed on the gas pipe 3 so as to overlap a part of the rotation shaft 21 of the ball valve 2. The rotary plate 6 provided on the engaging portion 22 of the ball valve 2 rotating shaft 21 on the settle groove 53 can be sufficiently inserted.

In addition, the other end of the main body 11 of the electric gas circuit breaker 1 is formed by integrally protruding the fixing band engaging port 14, the overall shape of the main body 11 has a shape of approximately "?".

In addition, instead of the handle coupled to the rotary shaft 21 of the ball valve (2), instead of the fixing hole 61, that is, having a shape corresponding to the locking portion 22 of the rotary shaft 21, that is, a rotary shaft having the shape of a circular rod By partially cutting both side portions of (21), the basic technical construction is provided with the square plate body-shaped rotating plate 6 provided with fixing holes 61 in the form of straight portions formed at both sides.

On the other hand, on the rotary shaft 12 of the gas circuit breaker 1 directly, the nut portion 51 of the operating means (5) having the expansion pipe portion 52 integrally provided at the lower end without the need to install the operating lever as conventionally The square plate-shaped rotary plate 6 may be coupled to the engaging portion 22 of the rotary shaft 21 without the need to provide a handle to the rotary shaft 21 of the ball valve 2 as in the related art.

In addition, when the electric gas circuit breaker 1 is installed on the gas pipe 3 in a state where the actuating means 5 is fixedly installed on the rotating shaft 12, it is formed in the expansion part 52 of the actuating means 5. Part of the upper end of the rotating shaft 21 of the ball valve 2 and the outer circumferential surface of the engaging portion 22 into the rectangular settle groove 53 so that the rotary plate 6 in the locked state is fitted in the straight direction, and then the main body When the fixing band 8 is fastened between the pair of catching holes 13 and 14 formed on both sides of the bottom of the 11 and the gas pipe, the rotary shaft 12 and the ball valve 2 of the gas circuit breaker 1 are fastened. The center of rotation of the shaft 21 is maintained by the operating means (5) so that even if the skilled person can easily and accurately install the gas circuit breaker (1), of the gas circuit breaker (1) Since the main body 11 is fixed on the gas pipe 3 through the locking holes 13 and 14 on both sides, external pressure is applied to itself. Even the play center is not supported or engaging hole 13 (14), etc. are not easily broken.

At this time, since the settling groove 53 and the rotating plate 6 of the operating means 5 have a quadrangular shape, the rotating plate installed on the engaging portion 22 on the rotating shaft 21 of the ball valve 2 ( 6) Once inserted into the settling groove 53 of the operating means 5, the rotary shafts 12 and 21 of the gas circuit breaker 1 and the ball valve 2 are in a state in which separate rotational operations cannot be performed. .

Therefore, the operating means 5 and the rotary plate 6 fastened on the rotary shaft 12 of the gas circuit breaker 1 are the center of the rotary shaft 21 of the ball valve 2 and the rotary shaft 12 of the gas circuit breaker 1. While performing the role of matching the center with each other and at the same time serves to transfer the motor rotational force therein to the rotating shaft 21 of the ball valve (2).

On the other hand, the gas circuit breaker (1) is to maintain the open state of the ball valve (2) installed on the gas pipe (3) in the normal case that the gas leakage and fire does not occur as in the prior art, such as gas leakage or fire When a predetermined output signal is generated by the control unit 4 due to the generation of the operating means (5) directly receiving the rotational force of the motor through the rotating shaft 12 of the ball valve 2 through the rotating plate (6) Since the rotary shaft 21 is correctly turned, the gas supplied to the gas device can be completely blocked, so that the gas shaft 1 and the rotary shafts 12 and 21 of the ball valve 2 are mutually intercepted in the event of leakage or fire of the actual gas. Due to the mismatch, it is possible to prevent the occurrence of safety accidents, such as an explosion accident, which may be caused by not completely blocking the gas pipe 3.

In addition, in the present invention through the operating means (5) and the rotary plate (6) without installing a relatively large operating lever and handle on the rotary shaft 12, 21 of the gas circuit breaker (1) and the ball valve (2) By interconnecting, the production cost of the product can be greatly reduced, and since no objects protrude out of the body of the gas circuit breaker 1 when the gas circuit breaker 1 and the ball valve 2 are operated, the gas pipe 3 ) May be fixed to the wall 7 or embedded in the wall itself.

That is, when the gas pipe 3 is installed in close contact with the wall 7, the gas circuit breaker 1 may be installed at right angles to the wall, and a little space between the gas pipe 3 and the wall 7 is provided. If there is a part, as shown in FIG. 2, the gas circuit breaker 1 may be installed horizontally with the wall. If the gas pipe 3 is in the state of being embedded in the wall 7, the space part for installing the ball valve 2 can be installed. Since the 71 is in the state secured to the wall, the gas circuit breaker 1 can also be installed in the space 71.

At this time, the gas circuit breaker 1 and the ball valve 2 may be left as it is installed on the gas pipe 3, but a pair formed integrally protruding from both sides of the bottom of the main body 11 of the gas circuit breaker 1. If the cover 9 is formed in the shape of a “U” to enclose a portion of the locking holes 13 and 14, the ball valve 2 and the gas pipe 3, the safety Problems and cosmetic beauty can be maintained.

As described above, according to the present invention, a gas circuit breaker is provided on the rotary shaft of the gas circuit breaker because the operating means including the nut part and the expansion pipe is integrally installed, and a rotary plate having a rectangular plate shape is provided on the rotary shaft of the ball foot. When installed on the pipe, anyone can easily match the rotational axis of the ball valve with the rotational axis of the ball valve, and when the gas circuit breaker is operated, the motor rotational force is transmitted directly to the rotational axis of the ball valve, so that the ball valve can be operated more accurately. Gas piping and gas circuit breakers can be embedded in the wall to prevent damage caused by external pressure and to keep the appearance of the building beautiful. It can maintain state.

Claims (2)

An electric motor and a speed reducer are installed inside the hollow rectangular box-shaped body 11 in which the fixing band 8 locking holes 13 are integrally protruded from one side of the bottom, and a rotation shaft protrudes outward from the center of the bottom of the body 11. 12) has a configuration in which the operating means (5) for selectively operating the handle of the ball valve (2) installed on the gas pipe (3) is installed and the control unit due to the leakage of gas leakage or fire An electric gas circuit breaker (1) operated by the predetermined output signal at (4); One end of the handle is fixed to the rotary shaft 21 through which the engaging portion 22 having the straight portion is formed on both sides is fixedly connected to the gas pipe 3 by the nut and directly opened and closed by the gas circuit breaker 1. In the safety device of a gas appliance provided with a ball valve (2), etc., On the rotating shaft 21 of the ball valve 2 is provided with a square plate-shaped rotary plate 6 having a fixing hole 61 of a shape corresponding to the engaging portion 22 thereof, In addition, the fixing band locking port 14 is integrally formed on the other side of the bottom of the main body of the electric gas circuit breaker 1, The actuating means 5 has a nut part 51 coupled to the rotary shaft 12 of the gas circuit breaker 1 at an upper end thereof, and a rectangular settle groove 53 in which the rotary plate 6 is fitted to the lower end thereof. The electric gas circuit breaker characterized by having the structure which provided integrally the expansion pipe | tube part 52 provided. The method of claim 1, wherein the pair of catching holes 13, 14, the ball valve 2 and the gas pipe 3 formed integrally protruding from both sides of the bottom of the main body 11 of the gas circuit breaker 1 can be wrapped. An electric gas circuit breaker, wherein a cover (9) is additionally installed.