TWM660972U - Gas pressure regulator with over-flow cut-off device - Google Patents

Abstract

A gas pressure regulator with an overflow cutoff device, the gas pressure regulator has an inlet pipe and an outlet pipe connected horizontally, the overflow cutoff device is arranged at the outlet pipe of the regulator, so that the pressure of high-pressure gas passing through the overflow cutoff device will be reduced to a standard value by the gas pressure regulator first, the actuation mechanism of the overflow cutoff device is less affected by the pressure change of high-pressure gas, and the overflow cutoff effect is more stable. When the overflow cutoff device needs to be adjusted according to the different flow rates of the gas burner, the invention is more convenient to operate, simple to understand and easy to adjust.

Description

Gas pressure regulator with over-flow cut-off device

The invention relates to a gas pressure regulator, and in particular to a gas pressure regulator with an over-flow cut-off device.

Bottled gas usually has a gas pressure regulator installed at the main switch to reduce and stabilize the pressure of the liquefied high-pressure gas stored in the bottled gas after it is released, and then the reduced-pressure gas is output to the gas stove through the gas pipeline. In order to ensure the safety of bottled gas and avoid accidents such as loose gas pipelines and gas leaks during use, which may cause fires or even fire and explosions, the relevant installation parts of bottled gas will also enhance its functional safety and protect the lives and property safety of users.

In order to achieve the above purpose, it is customary to add an over-current cut-off device before the gas pressure regulator. However, since the over-current cut-off value is a fixed specification, the gas can only be shut off when the gas pipe falls off or cracks, causing a large amount of gas leakage. Although there is also an adjustable over-current cut-off device, the over-current cut-off value can be adjusted according to the different stoves used, making it safer.

However, since the adjustable over-current cut-off device is installed at the high-pressure end of the gas, its function is easily affected by changes in gas pressure, and there is no mark on the adjustment value, so it is not easy to adjust to the appropriate position, resulting in it ultimately being just a spare function and cannot be widely used.

Therefore, the main purpose of this invention is to provide a gas pressure regulator with an over-flow cut-off device, the over-flow cut-off device has a more stable operation and can be easily adjusted to the required position according to the type of gas burner it is matched with, and has the function of adjusting the cut-off sensitivity, etc. The manufacturing process and operation method are relatively simple, while reducing the manufacturing cost.

In order to achieve the above main purpose, the invention provides a gas pressure regulator with an overflow cutoff device, the gas pressure regulator has an inlet pipe and an outlet pipe connected horizontally, the outlet pipe has two through holes connected to the inside, the overflow cutoff device is arranged in the outlet pipe, the overflow cutoff device includes an adjustment group and a reconnection group, the adjustment group includes a shaft and a ball, the adjustment group is arranged in one of the through holes of the outlet pipe, the shaft has a head end facing the inside of the outlet pipe, the ball is located in the outlet pipe and arranged in the At the head end of the rotating shaft, the ball can open or close the outlet pipe, and the rotating shaft can move up and down relative to the outlet pipe to adjust the height of the ball; the re-opening group has a button, and the button is connected to a top column, and the top column can push the ball to selectively open the outlet pipe; thereby, before passing through the super-flow cut-off device, the gas pressure will first be reduced to the standard value by the gas pressure regulator, and then flow through the super-flow cut-off device. The actuation mechanism of the super-flow cut-off device is less affected by changes in gas pressure, and the super-flow cut-off effect is more stable.

More preferably, an elastic member made of soft material is provided at one end of the rotating shaft of the adjustment group, and the ball is supported on the elastic member.

More preferably, the elastic member can be sleeved on the outside of the rotating shaft, arranged at the center of the rotating shaft, or arranged on the rotating shaft in a spring shape.

More preferably, the rotating shaft is provided with a knob, and the knob can be rotated to drive the rotating shaft to change the position of the ball.

More preferably, the ball is located inside the outlet pipe and is arranged at the head end of the shaft and close to the end of the outlet pipe. The end of the outlet pipe is provided with a connecting pipe with a seal inside. The ball can be moved to the end of the outlet pipe by gas and blocked in the seal of the connecting pipe.

The detailed content or features provided by this work will be described in the detailed description of the implementation method that follows. However, those skilled in the art should understand that the detailed description and the specific embodiments listed for implementing this work are only for illustration and are not intended to limit the scope of protection of the claims of this work.

First of all, it should be noted that the present invention can be widely applied to various types of barreled gas switches, especially gas switches with safety control functions such as supercurrent cutoff and adjustable sensitivity. Technical personnel in this field can understand that the descriptive terms of this implementation method are superordinate descriptions that do not limit the application method. For example, terms such as structure, shape, direction, or setting method include but are not limited to the description content, and do not limit the mechanical assembly method that can be combined.

In the embodiments and drawings to be introduced below, the same element numbers represent elements with the same or similar technical features or their structural features, and the quantity terms "one" and "at least one" of each element include one or more than one number of elements, and each example description is not intended to limit the scope of the claims.

As shown in FIG1 , the gas pressure regulator 20 provided by the invention with the overflow cutoff device 10 has an inlet pipe 22 and an outlet pipe 24 which are connected laterally. The gas pressure regulator 20 uses the inlet pipe 22 to connect to the main switch of the bottled gas, so that the liquefied high-pressure gas stored in the bottled gas enters the gas pressure regulator 20 through the inlet pipe 22 to reduce and stabilize the pressure, and then the reduced and stabilized gas is output toward the outlet pipe 24.

The superflow cutoff device 10 is disposed on the outlet pipe 24. The superflow cutoff device 10 includes an adjustment group 30 and a reconnection group 40. The outlet pipe 24 has two through holes 26 connected to the inside. In the preferred embodiment, the through holes 26 are located at the top and bottom of the outlet pipe 24 as an example.

As shown in FIG. 2 and FIG. 3 , the adjustment group 30 of the superfluid cutoff device 10 mainly includes a rotating shaft 32 and a spherical ball 34. The adjustment group 30 is disposed at the through hole 26 at the bottom side of the outlet pipe 24 via a base 31. The rotating shaft 32 includes a head end 35 and a screw 37 disposed below the head end 35. The screw 37 of the rotating shaft 32 is screwed into the base 31. The head end 35 is located in the groove 33 at the center of the base 31 and faces the inside of the outlet pipe 24. The rotating shaft 32 can be disposed on the base 31 so as to move up and down by rotating the screw 37, and the gasket 28 sleeved on the head end 35 is used to achieve the airtight effect of the adjustment group 30. The ball 34 is located inside the outlet pipe 24 and is arranged at the head end 35 of the shaft 32 and adjacent to the end of the outlet pipe 24. A connecting pipe 50 with a seal 52 inside is provided at the end of the outlet pipe 24. As shown in FIG. 1 , a positioning spring 29 is installed on the other side of the ball 34 corresponding to the end of the outlet pipe 24 to limit the left and right movement of the ball 34. Since FIG. 1 has already shown the positioning spring 29, other figures omit showing the same components. As shown in FIG. 2 , when the gas flow rate through the outlet pipe 24 is too high to exceed the safety specification, the gas pressure will produce a pressure difference between the front and rear sides of the ball 34, thereby pushing the ball 34 to move to the end of the outlet pipe 24 and blocking the seal 52 of the connecting pipe 50, so that the ball 34 closes the outlet pipe 24, and the gas stops flowing out of the over-flow cutoff device 10, reducing the danger of gas leakage.

An elastic member 38 is provided on the top side of the head end 35 of the rotating shaft 32 of the adjustment group 30. In the preferred embodiment, the elastic member 38 can be made of soft material and is disposed at the center of the rotating shaft 32, such as an inner pad (as shown in FIGS. 1 to 4 ), an outer sleeve (as shown in FIG. 5 ), or a spring (as shown in FIG. 6 ). The ball 34 is supported on the elastic member 38 .

The outer end of the rotating shaft 32 has a knob 39 located outside the base 31. Since the rotating shaft 32 is screwed to the base 31 by a screw 37, when the knob 39 is turned, the rotating shaft 32 can be moved up and down relative to the outlet pipe 24 and the height position of the ball 34 can be changed. As shown in FIG2 , when the shaft 32 is rotated so that the bottom 36 of the head end 35 abuts against the bottom of the central groove 33 of the base 31 , it means that the shaft 32 is at the lowest position. Conversely, as shown in FIG3 , when the knob 39 is rotated in the opposite direction so that the knob 39 abuts against the bottom of the base 31 , it means that the shaft 32 is at the highest position. This allows the user to flexibly adjust the super-flow cut-off device 10 according to the gas usage of different gas stoves, making it easier to match the use requirements, making the gas cut-off action more sensitive and more compatible with various gas stoves. In the preferred embodiment, the highest position is for use with a gas stove, and the lowest position is for use with a water heater, so the user can conveniently adjust according to the stove he uses, which is easy to operate.

The restoration assembly 40 is disposed in the through hole 26 at the top side of the outlet pipe 24. The restoration assembly 40 has a button 42 on the outside. The button 42 is connected to a top column 44 facing the inside of the outlet pipe 24. The top column 44 and the rotating shaft 32 both face the outlet pipe 24 and are located at the top and bottom sides of the ball 34, respectively. The top column 44 can move back and forth and is continuously pushed toward the outside of the outlet pipe 24 by the elastic force of a built-in spring. When the ball 34 plugs the seal 52 of the connecting pipe 50 and closes the gas from flowing out of the outlet pipe 24, the user only needs to press the button 42 to push the top column 44 to touch the ball 34 and fully move away from the seal 52, so that the gas can flow out of the outlet pipe 24 again.

When the shaft 32 of the preferred embodiment is rotated to drive the ball 34 to the highest point as shown in FIG. 3 , if gas leakage occurs and the ball 34 is moved to plug the seal 52 and shut off the gas, as shown in FIG. 4 , because the ball 34 is very close to the head end 35 of the shaft 32 , when the user presses down the top column 44 , it is not easy for the ball 34 to completely move away from the seal 52 , so the gas still cannot flow. The user needs to press the top column 44 multiple times to push the ball 34 normally, causing inconvenience in use.

The invention utilizes the compressible elastic material property of the elastic member 38 disposed between the ball 34 and the shaft 32, so that the user can not only press the button 42 to drive the top column 44 to touch the ball 34, but also press it down a little further, and compress the elastic member 38 by pressing the top column 44 to push the ball 34 to further increase the downward movement distance of the top column 44 and the ball 34, so that the ball 34 can be smoothly moved away from the sealing member 52 to the position of opening the gas by pressing it once.

In view of the above-mentioned components of the invention, when the gas leaks unexpectedly, the pressure difference between the front and rear sides of the ball 34 can move the ball 34, and the ball 34 blocks the seal 52 of the connecting pipe 50 at the end of the outlet pipe 24 to prevent the gas from flowing, thereby closing the gas pipeline. When the gas needs to be restored, the button 42 of the restoration assembly 40 is pressed downward, and the top column 44 pushes the ball 34 away from the outlet pipe 24, so that the ball 34 falls back to the open position of the head end 35 of the rotating shaft 32, and the gas can flow again.

This invention utilizes the above-mentioned technical features to achieve the following improvements:

1. The superflow cutoff device 10 provided by the invention is installed on the outlet pipe 24 of the gas pressure regulator 20. The gas pressure has been reduced to the R280 standard. Therefore, it is less affected by the change of high-pressure gas, and the superflow cutoff effect is more stable.

2. The user can change the flow value of the super flow cutoff by rotating the adjustment group 30 of the super flow cutoff device 10 at a rotation angle or number of turns according to different types of gas stoves, and flexibly fine-tuning and changing the height of the ball. If the invention is used with a water heater, it only needs to adjust the knob to the lowest position, and if it is used with a gas stove, it only needs to adjust it to the highest position. The operation of the invention is simple and easy to understand, and it is safer.

3. When the gas is to be allowed to flow again by using the restoration assembly 40, even if the shaft 32 of the adjustment assembly 30 is at the highest point, the ball 34 is very close to the head end 35 so that the top column 44 is pressed down and touches the head end 35 under the ball 34. The user only needs to directly press the top column 44 to open the ball 34. After the elastic member 38 is compressed by the ball 34, the downward movement distance of the top column 44 is increased. The ball 34 can be smoothly moved to allow the gas to flow at one time, reducing the user's operational troubles.

10: Overflow cutoff device 20: Gas pressure regulator 22: Inlet pipe 24: Outlet pipe 26: Through hole 28: Gasket 29: Positioning spring 30: Adjustment group 31: Base 32: Rotating shaft 33: Groove 34: Ball 35: Head end 36: Bottom 37: Screw 38: Elastic part 39: Knob 40: Reopening group 42: Button 44: Top column 50: Connecting tube 52: Seal

Figure 1 is a cross-sectional view of a preferred embodiment of the present invention. Figure 2 is a partial schematic diagram of a preferred embodiment of the present invention, mainly showing that the superfluid cutoff device is in a closed state. Figure 3 is another schematic diagram of a preferred embodiment of the present invention, showing that the adjustment group moves to the highest point. Figure 4 is similar to Figure 3, mainly showing that the superfluid cutoff device is in a closed state. Figure 5 is a partial schematic diagram of a preferred embodiment of the present invention, mainly showing another embodiment of the elastic member. Figure 6 is a partial schematic diagram of a preferred embodiment of the present invention, mainly showing another embodiment of the elastic member.

10: Superfluid cutoff device

20: Gas pressure regulator

22: Inlet pipe

24:Export pipe

26:Through hole

29: Positioning spring

30: Adjustment group

31: Base

32: Rotating axis

34: Ball

35: Headend

38: Elastic parts

39: Knob

40: Reconnection group

42:Button

44: Top column

50:Connecting pipe

52: Seal

Claims (9)

A gas pressure regulator with an overflow cutoff device, the gas pressure regulator has an inlet pipe and an outlet pipe connected horizontally, the outlet pipe has two through holes connected to the inside, the overflow cutoff device is arranged on the outlet pipe, the overflow cutoff device comprises: an adjustment group, comprising a rotating shaft and a ball, the adjustment group is arranged on one of the through holes of the outlet pipe, the rotating shaft has a head end facing the inside of the outlet pipe, the ball is located inside the outlet pipe and arranged on the head end of the rotating shaft, the ball can open or close the end of the outlet pipe, the rotating shaft can move up and down relative to the outlet pipe to adjust the height of the ball; and A reset assembly has a button connected to a top column, which can push the ball to selectively open the outlet pipe; Thereby, when the gas pressure regulator is used with a gas stove, it only needs to rotate the shaft to an upper limit position, and when it is used with a water heater, it only needs to rotate the shaft to a lower limit position, so the operation method is simple and easy to understand, and it is convenient and easy to use. A gas pressure regulator with an overflow cutoff device as described in claim 1, wherein an elastic member made of a soft material is provided at one end of the rotating shaft of the adjustment group, and the ball is supported on top of the elastic member. A gas pressure regulator with an overflow cutoff device as described in claim 2, wherein the elastic member can be sleeved on the outside of the rotating shaft, set at the center of the rotating shaft, or set on the rotating shaft in a spring shape. A gas pressure regulator with an overflow cutoff device as described in claim 1, wherein the adjustment group includes a base arranged on one of the through holes of the outlet pipe, the rotating shaft is screwed on the base, the head end of the rotating shaft is located in a groove at the center of the base and faces the inside of the outlet pipe, and the rotating shaft is arranged on the base so as to rotate and move up and down. A gas pressure regulator with an overflow cutoff device as described in claim 4, wherein the rotating shaft is provided with a knob, and the knob can be rotated to drive the rotating shaft to change the height position of the ball. A gas pressure regulator with an over-flow cut-off device as described in claim 5, wherein when the knob is turned until the bottom of the head end of the shaft abuts against the bottom of the groove in the center of the base, that is, the shaft is at the lowest position, and when the knob is turned until it touches the base, that is, the shaft is at the highest position. A gas pressure regulator with an overflow cutoff device as described in claim 1, wherein the ball is located inside the outlet pipe and is arranged at the head end of the shaft and adjacent to the end of the outlet pipe, and a connecting tube with a seal inside is provided at the end of the outlet pipe, and the ball can be moved to the end of the outlet pipe by the gas and blocked in the seal of the connecting tube. A gas pressure regulator with an over-flow cutoff device as described in claim 1, wherein the rotating shaft further includes a screw arranged at the head end so as to move the rotating shaft up and down. A gas pressure regulator with an over-flow cut-off device as described in claim 1, wherein a gasket is provided at the head end of the rotating shaft to make the adjustment group airtight.