TWM589258U - Gas outflow regulating device - Google Patents

Abstract

A gas outlet adjusting device includes: a joint body, a piston valve, an air supply component, a spring, an air flow switch component and a knob component; wherein the piston valve and the spring are arranged inside the joint body, and the springs are opposite The piston valve exerts an elastic force toward the air supply assembly, so that the piston keeps in constant contact with a valve stem of the air supply assembly, thereby maintaining the air pressure and the air flow stable; in addition, the air flow switch assembly and the knob assembly are provided on the joint body together, by the knob assembly The blocking member provided with a radial distribution and being separated by ninety degrees is arranged so that when the rotating component rotates ninety degrees between two directions opposite to each other, the blocking member is blocked by the convex part provided on the base, In order to control the airflow switch assembly to be in an open position after being rotated ninety degrees, or to be in a closed position after being reversely rotated ninety degrees, the user operation is more convenient.

Description

Gas outlet regulator

This creation relates to an air outlet adjusting device, especially an air outlet adjusting device for gas guns which has a voltage stabilizing effect and is easy to operate.

General small gas guns are equipped with an air outlet adjustment device to control the gas outlet volume. In addition, they are also equipped with a rotary switch to control the closing and opening of the gas. The gas blowtorch disclosed in Chinese Mingguo Patent No. I390161 includes a nozzle group with a joint seat, and a periphery of the joint seat is provided with a connecting part; a card board has a set of connecting parts and a card part of the set of connecting parts The sleeve is sleeved on the connecting portion, the clamping portion extends laterally from the sleeve portion; an adapter is coupled to the coupling seat, the adapter can be connected to a gas tank, and the clamping plate is limited to the rotation Between the joint and the nozzle group.

Among them, an adjustment button is provided on the above-mentioned nozzle group, but the inconvenience of the conventional gas adjustment device in use is that when the user turns on the gas, the user must turn the knob more than one turn or a considerable angle to open it. The same situation also exists in the case of gas. Not only is it inconvenient to operate, but it may cause the user to not fully tighten the knob when closing the gas, which may cause gas leakage.

Not only that, when the conventional gas regulator opens the gas, because the inside of the gas tank is high-pressure gas, the pressure inside the gas regulator may be too large or unstable, resulting in unstable flame combustion or gas leakage.

One of the purposes of this creation is to provide a gas outlet adjustment device that allows users to turn the knob ninety degrees to control the gas on or off and adjust the gas outlet volume, making the operation more convenient.

Another purpose of this creation is to provide a gas outlet regulator with a pressure stabilizing effect. Through the setting of the internal decompression structure, the gas pressure can be kept stable to avoid the risk of excessive high pressure gas pressure inside the gas tank.

To achieve the above purpose, the present invention provides a gas outlet regulating device, including: a joint body having a first connecting portion and a second connecting portion at opposite ends, the second connecting portion is provided to communicate with the inside of the joint body A central hole of the joint body, a third connecting portion is provided on the side wall of the joint body, and the third connecting portion communicates with the second connecting portion through a side hole; a piston valve has a piston and an air hole at one end, and the other end An air intake channel with air holes communicating with each other, the piston valve is axially movably provided inside the joint body; an air supply component is provided at the first connection portion of the joint body; and a spring is provided at the joint body Inside, to apply an elastic force toward the air supply assembly to the piston valve, so that the piston is constantly kept in contact with a valve stem of the air supply assembly; an air flow switch assembly is provided at the second connection portion of the joint body And a knob assembly, provided on the airflow switch assembly, for driving the airflow switch assembly to move to open or close the center hole.

In an embodiment, one end of the joint body of the present invention having the second connecting portion may be provided with a base, the base has a convex portion extending axially; the knob assembly includes a screw cap, the screw cap has an axial direction A through hole, which is provided with a plurality of barriers in a radial distribution, and there is an angle of ninety degrees between the two barriers, the knob assembly is combined with the airflow switch assembly, so that the convex portion is located in the two Between the blocking members, wherein, when the rotating assembly rotates ninety degrees between two directions opposite to each other, the blocking member is blocked by the convex portion to control the airflow switch assembly to be opened after rotating ninety degrees Position, or reversely rotated ninety degrees to the closed position.

The preferred embodiment of the present invention may further include an indicator element, a side of the indicator element has an extension portion extending in the axial direction, and the outer diameter of the screw cap is provided with a plurality of protrusions along the circumference, the The indicator element is combined with the screw cap, and the extension is fitted between the two protrusions.

In an embodiment, the airflow switch assembly may have a movable seat, one end of the movable seat has a stopper piece, and when the cap is rotated by an external force, the movable seat is moved in the axial direction to control the stopper piece Close the center hole or open the center hole.

In an embodiment, a first inner space, a second inner space, and a third inner space may be provided in order from the first connecting portion to the second connecting portion inside the joint body, the first inner space The inner diameter of is greater than the inner diameter of the second inner space, and the inner diameter of the second inner space is greater than the inner diameter of the third inner space, the central hole communicates with the third inner space, and the side wall of the joint body is provided with a drain A pressure hole, the pressure relief hole communicates with the second inner space; a first end of the piston valve has a piston and an air hole, and the opposite second end has an air intake channel communicating with the air hole, the piston valve is provided with Inside the joint body, the piston can move axially in the first inner space, and the second end can block or not block the third inner space.

Preferably, the air supply assembly may include a fixed seat and an air valve having the valve stem. The air valve is provided on the fixed seat, and the fixed seat is combined with the first connecting portion in a spiral manner.

This creation not only allows the user to control the opening, closing and gas output of the gas in the 90-degree rotation angle range through the aforementioned gas outlet adjustment device, but also can keep the gas pressure stable, avoiding the instability caused by the gas pressure. The flame is suddenly large and small and the incomplete burning is missing.

The following describes the implementation of this creation in more detail with reference to drawings and component symbols, so that those with ordinary knowledge in the technical field to which they belong can implement it after studying this specification.

FIG. 1 is a perspective view showing an appearance of an embodiment of the gas outlet adjusting device 1 of the present invention as a device connected between a gas source such as a gas tank and a small gas gun, which has a joint body 11 for connecting the gas tank, A base 12 is provided at one end of the joint body 11, and a knob assembly 14 is provided on the base 12. The knob assembly 14 is used to control whether gas can be supplied to the gas gun through the joint body 11 and adjust the gas output.

2 and FIG. 3 further show the main component combination relationship and structure of the gas emission regulating device of the present invention, in which the joint body 11 is formed to have a first connecting portion 111 and a second connecting portion 112 at opposite ends, the first The two connecting portions 112 are provided with a central hole 114 communicating with the inside of the joint body 11. The side wall of the joint body 11 is provided with a third connecting portion 113. The third connecting portion 113 communicates with the second connecting portion 112 through a side hole 115.

Specifically, the first connecting portion 111 is formed with an internal thread on the inner diameter of the first end of the joint body 11 for screwing a fixed seat 154, and the fixed seat 154 is used to set the air valve 151, the fixed seat 154 and the The air valve 151 together constitutes an air supply assembly 15. The second connecting portion 112 is formed with an internal thread on the inner diameter of the second end opposite to the joint body 11 for screwing the airflow switch assembly 13. A first inner space 110A, a second inner space 110B, and a third inner space 110C are sequentially provided inside the connector body 11 from the first connecting portion 111 to the second connecting portion 112, wherein the inner diameter of the first inner space 110A It is larger than the inner diameter of the second inner space 110B, and the inner diameter of the second inner space 110B is larger than the inner diameter of the third inner space 110C. The central hole 114 communicates with the third inner space 110C. In addition, the side wall of the joint body 11 is also provided There is a pressure relief hole 117 which communicates with the second inner space 110B. The third connecting portion 113 is formed with an internal thread on the inner diameter of the through hole of the joint body 11 close to the side wall of the second connecting portion 112 for screwing the gas outlet pipe (not shown); the third connecting portion 113 is provided with one side The hole 115 communicates with the second connection portion 112. As shown in FIG. 3, the side hole 115 and the center hole 114 are located at different positions on the bottom surface of the second connection portion 112.

A piston valve 152 and a spring 153 are combined inside the connector body 11. The piston valve 152 is integrally formed with a piston 1522 and an air hole 1525 at its first end, and the opposite second end has an axial extension extending a depth The air passage 1521, and the air inlet passage 1521 and the air hole 1525 communicate with each other; in addition, a recess 1526 is formed on the first end surface of the piston valve 152, the air hole 1525 is provided at an eccentric position on the bottom surface of the recess 1526, the spring 153 is After being inserted into the piston valve 152, the piston valve 152 and the spring 153 are inserted into the joint body 11 so that the piston 1522 can move axially in the first inner space 110A, and the piston ring 1523 provided on the outer diameter of the piston 1522 provides the piston 1522 and the inner diameter wall surface of the first inner space 110A are airtight to avoid air leakage; in addition, the second end of the piston valve 152 is provided with a stop ring 1524, which is used when the piston valve 152 goes to the third After the direction of the space 110C is moved to a predetermined position, the stepped portion between the second inner space 110B and the third inner space 110C is sealed to avoid air leakage.

As shown in FIG. 5, the air supply assembly 15 mounted on the first connection portion 111 of the joint body 11 includes a fixing seat 154, and an air valve 151 is disposed in the center of the fixing seat 154 to expose the valve stem 1511 of the air valve 151 The outer diameter of the fixing seat 154 is formed with an external thread. The fixing seat 154 is provided with a relief ring 1541 and the external thread is screwed to the internal thread of the first connecting portion 111 to combine the air supply assembly 15 with The first connection portion 111 of the joint body 11 and the end of the fixing base 154 facing outward are sequentially sleeved with the gasket 155 and the gasket 156 for mounting the air inlet joint for connecting the gas tank. The valve stem 1511 has an axial elastic force by a spring (not shown in the figure) provided inside the gas valve 151, and when the valve stem 1511 is fully extended, the valve is closed and gas cannot be discharged. When the valve stem 1511 is When pressed, the valve is opened and gas can be released. When the air supply assembly 15, the spring 153, and the piston valve 152 are all installed in the joint body 11, the spring 153 provides the elastic force toward the first connection portion 111 of the piston valve 152, and the valve stem 1511 itself has an elastic force toward the piston valve 152, The end of the valve stem 1511 is constantly held against the bottom surface of the recess 1526 of the piston valve 152.

As shown in FIGS. 2 and 3 again, the outer diameter of one end of the joint body 11 having the second connecting portion 112 is provided with a base 12 having an axial through hole 122 and the base 12 beside the through hole 122 A convex portion 121 extending axially is formed on the end surface, and a plurality of axial groove ribs are formed on the inner diameter surface of the through hole 122. The airflow switch assembly 13 mounted on the second connection portion 112 of the joint body 11 includes a nut 131, a control button 132 and a movable seat 133, wherein the nut 131 and the movable seat 133 are screwed together, and the control button 132 is Screwed together with the movable seat 133; as shown in FIG. 3, the lower end surface of the movable seat 133 is further provided with a stopper piece 134 made of rubber material, the upper end of the control button 132 has a screw hole 1321, the outer side of the control button 132 The diameter is formed with a plurality of axial grooves. In addition, positions where the outer diameter surfaces of the base 12 are separated by ninety degrees can be marked "ON" and "OFF", respectively, to represent the positions where the gas is turned on and off.

The knob assembly 14 includes a screw cap 143 and an indicator element 141, wherein the screw cap 143 has a through hole 1430 penetrating through the center of the screw cap 143. The through hole 1430 is provided with a plurality of blocking members 144 radially distributed, and two The blocking member 144 has an angle of ninety degrees. The knob assembly 14 is combined with the airflow switch assembly 13 so that the convex portion 121 is located between the two blocking members 144. In addition, the outer diameter of the screw cap 143 is provided along the circumference Plural bumps 1432. Specifically, the control button 132 is sleeved in a bolt hole (not shown) under the screw cap 143, so that the control button 132 and the screw cap 143 cannot rotate relatively, and then the screw 142 is locked into the screw hole of the screw cap 143 145 and the screw hole 1321 of the control button 132 to fix the screw cap 143 and the control button 132 to each other. Finally, the indicator element 141 is mounted on the screw cap 143. An extension portion 1411 extending in the axial direction is formed on the side of the indicator element 141, the indicator element 141 is combined with the screw cap 143, and the extension portion 1411 is fitted between the two protrusions 1432 of the screw cap 143 ; More specifically, the side of the indicator element 141 extends an L-shaped protrusion, the L-shaped protrusion has an axially extending extension 1411, and an indicator mark is formed on the horizontal surface of the L shape, for example Triangle shape representing direction. When the rotating assembly 14 rotates ninety degrees between two directions opposite to each other, the blocking member 144 is blocked by the convex portion 121 on the base 12 to control the airflow switch assembly 14 to be in the open position after rotating ninety degrees (The triangle-shaped index mark points to the "ON" position), or reversely rotates ninety degrees to the closed position (the triangle-shaped index mark points to the "OFF" position).

The structure of the combination of the aforementioned components is shown in FIGS. 3 and 4. As shown in FIG. 3, when the gas tank is connected to the gas supply assembly 154 in actual use, the valve stem 1511 of the gas valve 151 Pressed by the piston valve 152 will cause the gas to flow into the space between the piston 1522 and the fixed seat 154 through the gas valve 151, and then the gas will flow into the intake passage 1521 through the air hole 1525. At this time, the piston valve 152 stops When the drain ring 1524 plugs the stepped portion between the third inner space 110C and the second inner space 110B, if the screw cap 143 is operated to drive the movable seat 133 to rotate through the control button 132 and the stopper 134 blocks the central hole At 114 o'clock, gas cannot pass through the center hole 114 (as shown in Fig. 3); if the cap 143 is operated to drive the movable seat 133 to rotate through the control button 132 and the stopper 134 is separated from the center hole 114, the gas can pass through the center hole 114. The side hole 115 and the third connecting portion 113 are supplied to the gas gun (as shown in FIG. 4); when unstable pressure is generated inside the joint body 11 during the gas supply process, an excessively high air pressure will push the piston valve 132 moves to discharge excess pressure from the pressure relief hole 117 until the internal pressure is balanced, and then the elastic force of the spring 153 and the elastic force of the valve stem 1511 of the air valve 151 balance each other to maintain a stable supply of gas.

This creation not only allows the user to control the opening, closing and gas output of the gas in the 90-degree rotation angle range by the aforementioned gas outlet adjustment device, it does not need to rotate too much angle and is more convenient to operate, and can make the gas pressure Maintain stability and avoid the loss of flame due to unstable gas pressure and the incomplete combustion.

The above are only the preferred embodiments of this creation, and are not intended to limit the scope of this creation; all other equivalent changes or modifications made without departing from the spirit disclosed in this creation should be included in the following patents Within range.

1‧‧‧ Outlet regulator 11‧‧‧Connector body 110A‧‧‧First inner space 110B‧‧‧Second inner space 110C‧‧‧The third inner space 111‧‧‧First connection 112‧‧‧Second connection 113‧‧‧The third connection 114‧‧‧Center hole 115‧‧‧Side hole 116‧‧‧recess 117‧‧‧ Pressure relief hole 12‧‧‧Base 121‧‧‧Convex 122‧‧‧Through hole 13‧‧‧Air flow switch assembly 131‧‧‧ Nut 132‧‧‧Control button 1321‧‧‧Screw hole 133‧‧‧ Activity Block 134‧‧‧stop piece 14‧‧‧ knob assembly 141‧‧‧Indicating element 1411‧‧‧Extension 142‧‧‧screw 143‧‧‧Capping 1430‧‧‧Through hole 1431‧‧‧Notch 1432‧‧‧Bump 144‧‧‧block 145‧‧‧screw hole 15‧‧‧Gas supply components 151‧‧‧Valve 1511‧‧‧Stem 152‧‧‧Piston valve 1521‧‧‧ Intake channel 1522‧‧‧piston 1523‧‧‧piston ring 1524‧‧‧Stop ring 1525‧‧‧Blowhole 1526‧‧‧Depression 153‧‧‧Spring 154‧‧‧Fixed seat 1541‧‧‧Stop ring 155‧‧‧Gasket 156‧‧‧washer

FIG. 1 is a perspective view for explaining the appearance of an embodiment of the gas outlet adjusting device according to the present invention; FIG. 2 is an exploded perspective view for explaining the main component combination relationship of the gas outlet adjusting device according to the present creation; 3 is a plan cross-sectional view for explaining the internal structure of the gas outlet adjusting device according to the present invention, and the gas valve in the gas outlet state; 4 is a plan cross-sectional view for explaining the structure of the gas outlet adjusting device according to the present invention and being in a state of pressure relief due to excessive pressure; and Fig. 5 is an exploded perspective view showing the component combination relationship of the piston valve of the present creation.

11‧‧‧Connector body

110A‧‧‧First inner space

110B‧‧‧Second inner space

110C‧‧‧The third inner space

111‧‧‧First connection

112‧‧‧Second connection

113‧‧‧The third connection

114‧‧‧Center hole

115‧‧‧Side hole

117‧‧‧ Pressure relief hole

13‧‧‧Air flow switch assembly

131‧‧‧ Nut

132‧‧‧Control button

1321‧‧‧Screw hole

133‧‧‧ Activity Block

134‧‧‧stop piece

151‧‧‧Valve

1511‧‧‧Stem

152‧‧‧Piston valve

1521‧‧‧ Intake channel

1522‧‧‧piston

1523‧‧‧piston ring

1524‧‧‧Stop ring

1525‧‧‧Blowhole

1526‧‧‧Depression

153‧‧‧Spring

154‧‧‧Fixed seat

Claims (6)

A gas outlet regulating device, including: A joint body has a first connecting portion and a second connecting portion at opposite ends, the second connecting portion is provided with a central hole communicating with the inside of the joint body, and a third connecting portion is provided on the side wall of the joint body , The third connecting portion communicates with the second connecting portion through a side hole; A piston valve, having a piston and an air hole at one end, and an air inlet channel communicating with the air hole at the other end, and the piston valve is axially movable inside the joint body; An air supply component provided on the first connection portion of the joint body; A spring is provided inside the joint body to apply an elastic force to the piston valve toward the air supply assembly to keep the piston constantly in contact with a valve stem of the air supply assembly; An airflow switch assembly provided on the second connection portion of the joint body; and A knob assembly is provided on the airflow switch assembly to drive the airflow switch assembly to move to open or close the central hole. The gas outlet regulating device as described in item 1 of the patent application scope, wherein, One end of the joint body with the second connecting portion is provided with a base, and a convex portion extending axially is provided on the base; The knob assembly includes a screw cap, and the screw cap has an axial through-hole, and a plurality of blocking members arranged in a radial pattern are arranged in the through hole, and an angle of ninety degrees between the two blocking members is provided. Combined with the airflow switch assembly, the convex part is located between the two blocking members, Wherein, when the rotating assembly rotates ninety degrees between two directions opposite to each other, the blocking member is blocked by the convex portion to control the airflow switch assembly to be in the open position after rotating ninety degrees, or reverse After rotating ninety degrees to the ground, it is in the closed position. The gas outlet regulating device as described in item 2 of the patent application scope, further comprising an indicator element, the indicator element has a side extending along the axial direction, and the outer diameter of the screw cap is along the circumference A plurality of protrusions are provided, the indicator element is combined with the screw cap, and the extension is fitted between the two protrusions. The gas outlet regulating device as described in item 1 of the patent application scope, wherein the airflow switch assembly has a movable seat, one end of the movable seat has a stopper piece, and when the rotary cap is rotated by an external force, the movable seat is driven to move on the shaft Move in the direction to control the stopper to close the center hole or open the center hole. The gas outlet regulating device as described in item 1 of the patent application scope, wherein, A first inner space, a second inner space and a third inner space are sequentially arranged inside the joint body from the first connecting portion to the second connecting portion, the inner diameter of the first inner space is larger than the second The inner diameter of the inner space, and the inner diameter of the second inner space is greater than the inner diameter of the third inner space, the central hole communicates with the third inner space, the side wall of the joint body is provided with a pressure relief hole, the pressure relief hole Connect to the second inner space; A first end of the piston valve has a piston and an air hole, and the opposite second end has an intake passage communicating with the air hole. The piston valve is provided inside the joint body so that the piston can be located in the first An inner space moves axially, and the second end may or may not block the third inner space. The gas outlet regulating device as described in item 1 of the patent application scope, wherein the gas supply assembly includes a fixed seat and an air valve having the valve stem, the air valve is provided on the fixed seat, and the fixed seat is combined in a spiral manner To the first connecting portion.

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