TWM652127U - Gas regulator overflow blocking device - Google Patents

Abstract

An overcurrent interrupting device of a gas regulator mainly includes a pressure reducing unit and an overcurrent interrupting unit. Among them, the pressure reducing unit is connected to an air inlet channel and an air outlet channel respectively. The air inlet channel is connected to the gas supply equipment, and the air outlet channel is connected to the gas gas equipment. The air inlet channel is provided with an upper fixed seat, and the upper fixed seat is provided with through holes and side guide holes; the overflow interrupting unit is located on the upper fixed seat, which includes a stop ring, a spring, a steel ball and a button, The push rod uses the steel ball to block or detach from the stop ring, so that the through hole is closed to block or open; there is an adjustment rod under the supercurrent interruption unit for adjusting the position of the steel ball, and the adjustment rod Covered by a nut to prevent tampering. So that when the air outlet channel causes overflow due to air leakage, the overflow interrupting unit can be used to block and cut off the gas flow. And because the overflow interrupting unit is located at the end of the air inlet channel, it can improve the conventional gas flow. The interruption device fails to detect the supercurrent when the decompression regulating structure fails.

Description

Gas regulator super current interrupting device

This invention relates to a superflow interrupting device of a gas regulator. In particular, it refers to a device that can use the superflow interrupting unit to achieve the purpose of blocking and cutting off the gas flow when the air outlet channel causes overflow due to air leakage, and can improve the habit. It is known that the gas superfluid interrupting device cannot detect the loss of superfluid when the decompression regulating structure fails.

Press; Gas has become an indispensable part of our daily life. Cooking food, boiling water or washing are all inseparable from the use of gas as fuel. However, although the use of gas is quite convenient, it can also cause a lot of harm if used improperly or carelessly. For example, carbon monoxide poisoning caused by incomplete combustion of gas, or gas explosion caused by gas leakage, can lead to property damage or even life injury. Therefore, in order to prevent the occurrence of unfortunate incidents, some people purchase a gas regulator with a gas interruption mechanism (which depressurizes and stabilizes the barreled gas, and then outputs it to the gas equipment through the gas pipe), which can prevent gas leakage when the gas leaks. Automatically cut off the gas to further ensure the safety of gas use.

The conventional gas interruption structure is usually equipped with a leak-proof ring and a movable steel ball. When the gas flow is too large due to gas leakage, the steel ball will block the leak-proof ring due to pressure, thereby achieving the purpose of cutting off the gas. . However, no matter what the structure is, the conventional gas interruption structure is usually located at the output end of the gas regulator (connected to the gas equipment end such as a gas furnace). This structure is designed to be used when the gas equipment at the output end is disconnected due to pipeline detachment. , when the rupture causes air leakage and leads to overflow, there is no problem if the gas is cut off immediately. However, ordinary gas usually enters the gas equipment end through the pressure reduction regulator. Since the conventional gas interruption structure is located at the output end, when the pressure reduction adjustment structure fails and leaks, the gas interruption structure cannot be activated immediately. function, resulting in the lack of conventional gas interception structures.

In view of this, after continuous research and experiments, the applicant came up with the idea of designing a super-current interrupting device for the gas regulator, which can improve the conventional gas interrupting device placed at the output end, resulting in the decompression adjustment structure being unable to function in case of failure. Detect the absence of superfluidity.

The main purpose of this invention is to provide a superflow interrupting device for a gas regulator. When the air outlet channel causes overflow due to air leakage, the superflow interrupting unit can be used to achieve the purpose of blocking and cutting off the gas flow, and can Improve the conventional gas interruption device placed at the output end, resulting in the inability to detect overcurrent in the event of a failure of the pressure reducing adjustment structure.

The aforementioned overcurrent interrupting device of the gas regulator includes a pressure reducing unit and an overcurrent interrupting unit. Among them, the pressure reducing unit is connected to an air inlet channel and an air outlet channel respectively. The air inlet channel is connected to the gas supply equipment, and the air outlet channel is connected to the gas gas equipment. The air inlet channel is provided with an upper fixed seat, and the upper fixed seat is provided with through holes and side guide holes; the overflow interrupting unit is located on the upper fixed seat, which includes a stop ring, a spring, a steel ball and a button, The push rod uses the steel ball to block or detach from the stop ring, so that the through hole is closed to block or open; there is an adjustment rod under the supercurrent interruption unit for adjusting the position of the steel ball, and the adjustment rod Covered by a nut to prevent tampering. So that when the air outlet channel causes overflow due to air leakage, the overflow interrupting unit can be used to block and cut off the gas flow. And because the overflow interrupting unit is located at the end of the air inlet channel, it can improve the conventional gas flow. The air outlet end of the blocking device will prevent the detection of overflow in the event of a malfunction of the pressure reducing unit.

In the above-mentioned overflow interrupting device of the gas regulator, the air inlet passage is provided with a piston valve and a nozzle member. The piston valve can move between positions close to the nozzle member or away from the nozzle member. The piston valve It is connected to the center plug of the pressure reducing unit by a connecting rod; the nozzle is provided with a channel composed of a horizontal section and an inclined section.

In the above-mentioned supercurrent interrupting device of the gas regulator, a through hole is provided in the center of the upper fixed seat, a stop ring is provided below the through hole, and a side guide hole is provided on the side of the upper fixed seat so that the The side guide hole is connected with the channel of the nozzle piece.

In the above-mentioned overflow interrupting device of the gas regulator, the overflow interrupting unit includes a pipe body and a set of buttons placed on the pipe body. A push rod is pivotally connected to the button and passes through the push rod. Assume a spring. Below the air inlet channel, corresponding to the position of the upper fixed seat, there is a lower fixed seat. An adjusting rod that can move up and down along the lower fixed seat is passed through the lower fixed seat and is locked with a nut. The lower fixed base covers the adjusting rod, and a steel ball that can move in the space is provided between the stop ring and the adjusting rod.

Please refer to Figures 1 and 2 at the same time, together with Figures 3 and 4, which are the perspective view and cross-sectional view of this creation, as well as the cross-sectional view of the hole seat and the cross-sectional view of the super-current interruption unit. As shown in the figure, the invention includes a decompression unit 1 and a supercurrent interrupting unit 2. Among them, the pressure reducing unit 1 is connected to the air inlet channel 3 and the air outlet channel 4 respectively. The air inlet channel 3 is connected to the gas supply equipment, and the air outlet channel 4 is connected to the gas gas equipment.

The pressure reducing unit 1 includes an air chamber 11. The air chamber 11 is provided with an outer cover 12, a waterproof cap screw 13, a pressure regulating screw 131, and a pressure regulating fixed plate 132. A spring 14 is provided inside the air chamber 11. A pressure plate 15 and a diaphragm 16, as well as a central bolt 17 pivotally connected to the pressure plate 15 and the diaphragm 16, use the outer cover 12 to seal the air chamber 11 to form a decompression unit 1.

The air inlet passage 3 is provided with a piston valve 31 and a nozzle member 32. The piston valve 31 can move between positions close to the nozzle member 32 or away from the nozzle member 32. The piston valve 31 is connected by a connecting rod. 33 is connected to the central plug body 17; the nozzle member 32 is provided with a channel 321 composed of a horizontal section and an inclined section. When the waterproof cap screw 13 of the pressure reducing unit 1 is adjusted and rotated, the spring 14 is compressed, thereby causing the position of the diaphragm 16 to change, and driving the central bolt 17 to move up and down, and at the same time driving the piston valve 31 and a The opening and closing of the nozzle member 32 can adjust the flow rate of gas flow into the pressure reducing unit 1 so as to be suitable for gas supply equipment.

The air inlet channel 3 is provided with an upper fixed seat 34, and the overflow interrupting unit 2 is installed on the upper fixed seat 34. The upper fixed seat 34 is provided with a through hole 341 in the center, and a stopper is provided below the through hole 341. ring 21, and two or more side guide holes 342 are provided on the sides of the upper fixed seat 34, so that the side guide holes 342 are connected with the channel 321 of the nozzle member 32. The supercurrent interrupting unit 2 includes a tube body 22, a set of buttons 23 placed on the tube body 22, a push rod 24 pivotally connected to the button 23, and a spring 25 passing through the push rod 24. The lower part of the air inlet channel 3 corresponds to the position of the upper fixed seat 34, and is provided with a lower fixed seat 35. An adjusting rod 26 that can move up and down along the lower fixed seat 35 is passed through the lower fixed seat 35, and is connected with a The nut 36 with the through hole 361 is locked on the lower fixed seat 35 to cover the adjustment rod 26, and between the stop ring 21 and the adjustment rod 26, a steel ball 27 that can move in the space is provided. A spring 28 is used to position the stop ring 21 and limit the steel ball 27 to the upper and lower movable space. On one side of the air inlet channel 3, there is a pressure gauge 37 connected with the upper fixed seat 34.

Through the combination of the aforementioned components, a supercurrent interrupting device of the gas regulator is formed. Since during use, the gas supply equipment is connected to the air inlet channel 3 and the gas gas equipment is connected to the gas outlet channel 4, under normal gas supply conditions, the steel ball 27 of the overflow interrupting unit 2 falls on the adjusting rod 26 At the top, the gas flow flows from the air inlet channel 3 along the through hole 341 of the upper fixed seat 34, and then enters the pressure reducing unit 1 through the side guide hole 342 and the channel 321 of the nozzle member 32, and is output to the gas gas through the air outlet channel 4. equipment. When the conveying pipeline at the 4th end of the air outlet channel breaks and falls off, or the gas flow rate exceeds the set flow rate due to a failure of the pressure reducing unit 1, the steel ball 27 will be greater than the weight of the steel ball 27 due to the gas pressure difference between the front and rear, so the steel ball 27 can be pushed. It is upwardly closed and blocked in the stop ring 21 to achieve the purpose of blocking and cutting off the gas flow. Moreover, because the overflow interrupting unit 2 is located at the 3rd end of the air inlet passage, it can prevent the decompression unit 1 from being inoperable in case of failure. Detect the absence of superfluidity. After the fault is eliminated, the button 23 can be pressed, and the push rod 24 will push the steel ball 27 away from the stop ring 21, so that the gas flow can pass smoothly.

Please refer to Figure 5 and Figure 6 at the same time, which are diagrams of the usage status of this creation. As shown in the figure, when this product is in use, the gas supply equipment 5 (gas barrel) is connected to the air inlet channel 3, and the gas gas equipment 6 (gas furnace) is connected to the gas outlet channel 4. In the normal gas supply state down, the steel ball 27 of the superflow interrupting unit 2 falls on the top of the adjusting rod 26, so that the gas flow from the gas supply equipment 5 flows through the through hole 341 of the upper fixed seat 34 along the air inlet channel 3, and then passes through the side guide. The hole 342 and the channel 321 of the nozzle piece 32 enter the pressure reducing unit 1 to form an appropriate pressure reduction, and then are output to the gas equipment 6 through the air outlet channel 4 to supply the gas gas to the gas equipment 6.

Please refer to Figure 7, which is a state diagram of the blocking action of this creation. As shown in the figure, when this invention is in use, if the transmission pipeline at the 4th end of the air outlet channel breaks and falls off and leaks, or the gas flow rate exceeds the set flow value due to a failure of the pressure reducing unit 1, the steel ball 27 will be affected by the gas pressure difference between the front and rear. It is greater than the weight of the steel ball 27, so the steel ball 27 can be pushed upward to seal and block the stop ring 21, thereby blocking and cutting off the flow of gas airflow and preventing the occurrence of gas disasters. And because the overflow interrupting unit 2 is located at the 3rd end of the air inlet passage, it can prevent the failure of the decompression unit 11 from being unable to detect the overflow. After the fault is eliminated, the button 23 can be pressed, and the push rod 24 will push the steel ball 27 away from the stop ring 21, so that the gas flow can pass smoothly. Among them, the adjusting rod 26 of the lower fixed seat 35 can be rotated to adjust the height of the adjusting rod 26, thereby adjusting the high and low position of the steel ball 27, thereby adjusting the gas flow to reach the actuation point at which different excess flows can be blocked. Make the use of gas equipment safer. And the lower fixed base 35 is locked to the lower fixed base 35 with a nut 36 having a through hole 361, and the adjusting rod 26 is covered so that only a special tool can be inserted into the through hole 361 during adjustment. Turn the adjusting lever 26 to prevent arbitrary operation.

This creation is located on one side of the air inlet channel 3, and is provided with a pressure gauge 37 that is connected to the upper fixed seat 34. When the steel ball 27 closes upward and blocks the stop ring 21 because the gas pressure difference between the front and rear is greater than the weight of the steel ball 27, The pressure gauge 37 will show a zero display because there is no gas flow passing through, so that the user can visually judge whether it is a super-flow interruption state.

The foregoing embodiments are only for illustrating the preferred embodiments of the present invention, rather than limiting the scope of the present invention. Slight modifications and changes will still not lose the essence of the present invention, nor will it deviate from the spirit of the present invention.

To sum up, this invention uses a pressure reducing unit connected to the air inlet channel and the air outlet channel respectively, and cooperates with the overflow interrupting device provided at the end of the air inlet channel to form the overflow interrupting device of the gas regulator. When the air outlet channel is overflowed due to air leakage, the overflow interrupting unit can be used to block and cut off the gas flow, and it can improve the conventional gas interrupting device placed at the air outlet end in case of an accident in the decompression adjustment structure. In the event of a malfunction, the lack of supercurrent cannot be detected. It is a practical design and is truly a novel creation. I submit a patent application in accordance with the law and pray that the Bureau will review it and grant the patent as soon as possible.

1: Pressure reduction unit 11:Air chamber 12: Outer cover 13: Waterproof cap screws 131: Pressure regulating screw 132: Pressure regulating fixed plate

14:Spring

15: Pressure plate

16:Diaphragm

17:Center plug body

2:Super current interrupting unit

21: Stop ring

22:Tube body

23:Button

24:Putter

25:Spring

26:Adjustment lever

27:Steel balls

28:Spring

3: Air intake channel

31:Piston valve

32:Nozzle parts

321:Channel

33: Connecting rod

341:Through hole

342:Side guide hole

34: Upper fixed seat

35: Lower fixed seat

36: Nut

361:Through hole

37: Pressure gauge 4: Air outlet channel 5: Gas supply equipment 6: Gas equipment

Figure 1 is a three-dimensional view of this creation. Figure 2 is a cross-sectional view of this creation. Figure 3 is a cross-sectional view of the fixed seat on this creation. Figure 4 is a cross-sectional view of the superfluid interrupting unit of this invention.

Figures 5 and 6 are diagrams of the usage status of this creation.

Figure 7 is a state diagram of the blocking action of this creation.

1: Pressure reduction unit

12: Outer cover

13: Waterproof cap screws

2:Super current interrupting unit

22:Tube body

23:Button

3: Air intake channel

34: Upper fixed seat

35: Lower fixed seat

36: Nut

37: Pressure gauge

4: Air outlet channel

Claims (4)

An overflow interrupting device of a gas regulator includes a pressure reducing unit and an overflow interrupting unit, wherein the pressure reducing unit is connected to an air inlet channel and an air outlet channel respectively, so that the air inlet channel is connected to the gas supply Gas equipment, and the gas outlet channel is connected to the gas equipment. The air inlet channel is provided with a piston valve and a nozzle piece. The piston valve can move between positions close to the nozzle piece or away from the nozzle piece. The piston The valve is connected to the pressure reducing unit with a connecting rod, so that the flow rate of gas flow into the pressure reducing unit can be adjusted to be suitable for gas supply equipment. It is characterized by: The nozzle piece is provided with a channel, and the air inlet channel is provided with an upper fixed seat for a superflow interrupting unit to be installed on the upper fixed seat. The upper fixed seat is provided with a through hole in the center, and is provided with a through hole below the through hole. A stop ring is provided, and a side guide hole is provided on the side of the upper fixed seat so that the side guide hole communicates with the channel of the nozzle member; the superflow interrupting unit includes a tube body and a A button is placed on the tube body, a push rod is pivotally connected to the button, and a spring is installed on the push rod; a lower fixed seat is provided below the air inlet channel corresponding to the position of the upper fixed seat. The lower fixed base is penetrated with an adjusting rod that can move up and down along the lower fixed base; between the stop ring and the adjusting rod, there is a steel ball that can move in the space, and the steel ball can be adjusted by the adjusting rod. The high and low position; so that under normal air supply conditions, the steel ball falls on the top of the adjusting rod, allowing the gas flow to flow through the through hole of the upper fixed seat of the air inlet channel, and then through the side guide hole and the nozzle The channel of the parts enters the pressure reducing unit and is output to the gas equipment from the gas outlet channel; and when the transmission pipeline at the end of the gas outlet channel breaks and falls off and leaks, or the gas flow rate exceeds the set flow rate due to a failure of the pressure reducing unit, the gas flow rate exceeds the set flow rate. Because the gas pressure difference between the front and rear of the steel ball is greater than the weight of the steel ball, the steel ball can be pushed upward to seal and block the stop ring to achieve the purpose of blocking and cutting off the gas flow. The superfluid interrupting device of the gas regulator according to claim 1, wherein the channel of the nozzle member is composed of a horizontal section and an inclined section. The overcurrent interrupting device of the gas regulator as claimed in claim 1, wherein a spring is disposed between the stop ring and the adjustment rod, and the stop ring is positioned by the spring and the steel ball is Limit. The super-current interrupting device of the gas regulator according to claim 1, wherein the lower fixing base is locked with a nut with a through hole to cover the adjusting rod.