CN115875470A - Gas switch device - Google Patents

Abstract

A gas switch device comprises a valve body, a switch component and an operation control component, wherein the valve body is provided with an air inlet part and an air outlet part, and the air inlet part is provided with an air inlet channel; the air outlet part is provided with an air outlet interface and a containing chamber; the wall surface of the containing chamber is provided with a side opening communicated with the air inlet channel; the switch component comprises a shutter, the shutter is positioned in the accommodating chamber and can rotate between a first position and a second position along the axial direction of the shutter, when the shutter is at the first position, the peripheral surface of the shutter seals the side port, and when the shutter is at the second position, the vent hole of the shutter is communicated with the side port; the control part is separably connected with the air outlet interface through a connecting end, the connecting end is connected with the shutter, and the air transmission channel is communicated with the shaft hole of the shutter; the control part drives the closer to rotate between a first position and a second position. Therefore, the convenience and the safety of use are improved.

Description

Gas switch device

Technical Field

The present invention relates to gas switches; in particular to a gas switch device which can detach a gas pipe.

Background

The gas switch is arranged on a gas pipeline communicated with the gas appliance and is used for opening and blocking the gas supplied to the gas appliance. In order to increase the safety of the gas, the gas switch is closed when the gas is not used during sleeping, going out or short time at night, so as to avoid gas leakage and disaster.

A conventional gas switch has an inlet connector and an outlet connector, wherein the inlet connector is usually locked on a gas pipeline to connect to a gas source. The air outlet joint is fixedly connected with a gas hose and is connected to a gas appliance through the gas hose. The rotating handle of the gas switch device is rotated to drive the ball valve inside the gas switch device to open or close the gas supplied to the gas appliance.

Usually, the gas hose is fastened to the outlet connector by a pipe bundle. If the gas hose is to be removed, the gas hose must be removed from the gas outlet connector by rotating the handle to close the gas and then loosening the pipe bundle, which is inconvenient for the user. In addition, after the gas hose is removed, if the gas hose accidentally touches the rotating handle, gas may leak from the gas outlet joint, which may cause danger.

Therefore, the design of the existing gas switch is still not perfect, and there is a need for improvement.

Disclosure of Invention

In view of the above, the present invention provides a gas switch device, which is convenient for taking out gas and increasing the safety of use.

In order to achieve the above object, the present invention provides a gas switch device, which comprises a valve body, a switch assembly and an operation member, wherein the valve body has an air inlet portion and an air outlet portion, the air inlet portion has an air inlet channel, and the air inlet channel is used for injecting gas; the air outlet part is provided with an air outlet interface and a containing chamber; the wall surface of the accommodating chamber is provided with a side port communicated with the gas inlet channel; the switch assembly comprises a shutter, the shutter is positioned in the accommodating chamber and provided with an axial hole and a vent hole positioned on the radial direction, and the axial hole is communicated with the vent hole and the air outlet interface; the shutter can rotate along the axial direction of the shutter between a first position and a second position, wherein the peripheral surface of the shutter closes the side port in the first position, and the vent hole is communicated with the side port in the second position; the control element is provided with a connecting end, an air conveying passage is arranged in the control element, one end of the air conveying passage forms an inlet at the connecting end, and the other end of the air conveying passage is communicated with a gas pipe; the control element is detachably connected to the air outlet interface through the connecting end, the connecting end is connected with the obturator, and the air conveying channel is communicated with the shaft hole; the control part drives the closer to rotate between the first position and the second position.

The gas pipe has the advantages that the operation control piece is used for controlling the closure to rotate, gas can be transmitted to the gas pipe through the gas transmission channel in the operation control piece, and the gas is more convenient to take. After the gas valve is used, the control piece and the gas pipe can be taken down, and the gas can not leak from the gas outlet port due to the fact that the closing piece is arranged inside the valve body, and the use safety is improved.

Drawings

Fig. 1 is a perspective view of a gas switching device according to a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of the gas switching device according to the above preferred embodiment of the present invention.

Fig. 3 is a perspective view of the valve body and the switch assembly according to the above preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of the valve body and the switch assembly according to the above preferred embodiment of the present invention.

Fig. 5 is a front view of the valve body and the switch assembly according to the above preferred embodiment of the present invention.

Fig. 6 is an exploded perspective view of the valve body and the switch assembly according to the above preferred embodiment of the present invention.

Fig. 7 is a plan view of the valve body according to the above preferred embodiment of the present invention.

Fig. 8 is a cross-sectional view taken in the direction 8-8 of fig. 7.

Fig. 9 is a sectional view in the direction of 9-9 of fig. 3.

Fig. 10 is a perspective view of the manipulating member according to the above preferred embodiment of the present invention.

Fig. 11 is a sectional view taken in the direction 11-11 of fig. 10.

Fig. 12 is a cross-sectional view taken in the direction of 12-12 of fig. 1.

FIG. 13 is a schematic view illustrating the operation of the control member to open the side opening of the shutter.

Detailed Description

In order to more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Referring to fig. 1 to 13, a gas switch device 1 according to a preferred embodiment of the present invention includes a valve body 10, a switch assembly 28 and an operation control member 46.

The valve body 10 has an inlet portion 12 and an outlet portion 14. The gas inlet portion 12 is tubular and has an external thread section 122 at one end, the external thread section 122 is locked into a gas supply pipe (not shown), the gas inlet portion 12 has a gas inlet passage 124, and the gas inlet passage 124 is used for injecting gas. The gas inlet portion 12 extends along a first axial direction X.

The air outlet portion 14 is tubular and connected to the air inlet portion 12, the air outlet portion 14 extends along a second axial direction Y, and the second axial direction Y intersects with the first axial direction X. The air outlet portion 14 has an air outlet interface 142, and the air outlet interface 142 is connected to the control component.

With reference to fig. 8 and 9, the air outlet portion 14 has a receiving hole 16, and the receiving hole has a first hole section 18, a second hole section 20 and a third hole section 22 connected in sequence along an axial direction thereof. The air outlet port 142 is located in the first hole section 18, and the first hole section 18 has a connecting channel 182. The second bore section 20 is located between the first bore section 18 and the third bore section 22, the bore wall of the second bore section 20 is tapered, and the bore diameter of the second bore section 20 is tapered from the first bore section 18 to the third bore section 22. The second hole section 20 forms a chamber, and a side port 202 of a hole wall (i.e., a wall surface of the chamber) of the second hole section 20 is communicated with the gas inlet channel 124. The third bore section 22 has a shoulder 222 at the junction with the second bore section 20. The inner wall of the connecting channel 182 (i.e. the hole wall of the first section) has a positioning ring groove 182a, and one end of the air outlet port 142 has at least one notch 142a, in this embodiment, two notches 142a are provided and communicate with the positioning ring groove 182a. The positioning ring groove 182a has a groove wall 182b, and the groove wall 182b faces the second hole segment 20.

In addition, the air outlet portion 14 has a limiting groove 24, the limiting groove 24 is located at the radial periphery of the third hole section 22 and is communicated with the third hole section 22, and a first blocking portion 242 and a second blocking portion 244 are respectively formed on groove walls of the limiting groove 24 (refer to fig. 6). In this embodiment, the air outlet 14 is an open end 14a at the periphery of the third hole section 22, and can be combined with the periphery of the third hole section 22 in a threaded manner by a rear cover 26 to close the open end 14a.

The switch assembly 28 includes a shutter 30, the shutter 30 having a first end 302 and a second end 304 opposite to each other in an axial direction thereof, at least a portion of the shutter 30 being located in the second hole section 20 of the receiving hole 16, the shutter 30 having a shaft hole 32 and a vent hole 34 located in a radial direction, the shaft hole 32 communicating with the vent hole 34 and the outlet port 142. More specifically, the closure 30 includes a driving section 36, a tapered section 38 and an extension section 40, the driving section 36 has the first end 302, the tapered section 38 is connected between the driving section 36 and the extension section 40, and the driving section 36 is located at the first hole section 18. The tapered section 38 is located in the second hole section 20 and the outer peripheral surface of the tapered section 38 is matched with the hole wall of the second hole section 20. The extension 40 is located in the third bore section 22, the extension 40 having the second end 304.

The axial bore 32 has an open side 322 and a closed side 324, the open side 322 is formed at the first end 302, the closed side 324 is located at the tapered section 38 and between the first end 302 and the second end 304, and the vent hole 34 is located at the tapered section 38.

The first end 302 has at least one slot 302a, and in this embodiment, two slots 302a, located on opposite sides of a radial periphery of the axial bore 32. The positioning ring groove 182a of the air outlet port 142 surrounds the radial periphery of the two cutting grooves 302 a.

The switch component 28 further includes an elastic member 42, one end of the elastic member 42 abuts against the shoulder 222, and the other end of the elastic member 42 provides a force in a direction away from the shoulder 222 to the extension section 40, so that the outer peripheral surface of the conical section 38 can abut against the hole wall of the second hole section 20. In this embodiment, the switch assembly 28 includes a stopper, such as a stop lever 44, and the stop lever 44 is disposed on the extension section 40 of the shutter 30 and extends to the radial periphery of the extension section 40. The other end of the elastic member 42 abuts against the stop lever 44. The elastic member 42 includes two blocking pieces 422 and a spring 424, the two blocking pieces 422 and the spring 424 are sleeved on the extension section 40, the spring 424 is supported between the two blocking pieces 422, one of the blocking pieces 422 constitutes one end of the elastic member 42 and supports against the shoulder, and the other blocking piece 422 constitutes the other end of the elastic member 42 and supports against the stop lever 44. One end of the blocking rod 44 extends into the limiting groove 24 and is located between the first blocking portion 242 and the second blocking portion 244 for limiting the rotation angle of the closure 30.

Referring to fig. 8, 12 and 13, the shutter 30 can be operated to rotate along its axial direction between a first position P1 and a second position P2. As shown in fig. 12, in the first position P1, the outer peripheral surface of the tapered section 38 of the closure 30 closes the side port 202 to block gas, and the cutting grooves 302a on the first end of each closure 30 and the notches 142a of the outlet port 142 are located on the same reference plane (see fig. 5), and the blocking rod 44 abuts against the first blocking portion 242. As shown in fig. 13, in the second position P2, the ventilation hole 34 communicates with the side port 202 to open gas, so that the gas can be output from the outlet port 142, and the blocking rod 44 abuts against the second blocking portion 244.

The control member 46 has a connection end 462, and the control member 46 has an air duct 48 therein, wherein an inlet 482 is formed at one end of the air duct 48 at the connection end 462, and the other end of the air duct 48 is communicated with a gas pipe 100, and the gas pipe 100 can be a hose and is connected to a gas appliance. The control element 46 is detachably connected to the outlet port 142 via the connecting end 462, and the connecting end 462 is connected to the closure 30 and the air duct 48 is communicated with the shaft hole 32. The control member 46 drives the shutter to rotate between the first position P1 and the second position P2.

More specifically, referring to fig. 10 to 13, at least one positioning pin 50 is disposed on the connecting end 462 of the control member 46, and in this embodiment, two positioning pins 50 are provided. When the closure 30 is in the first position P1, each of the positioning pins 50 can enter the positioning ring groove 182a through each of the notches 142a of the outlet port 142, and each of the positioning pins 50 can also enter each of the cutting grooves 302a of the closure 30.

In this embodiment, the positioning pins 50 are arranged along the radial direction of the connecting end 462, each positioning pin 50 has an outer end 502 and an inner end 504, the outer end 502 protrudes from the radial periphery of the connecting end 462, and the inner end 504 extends into the gas delivery passage 48. The air conveying channel 48 is provided with a sealing sheet 52, the sealing sheet 52 is provided with a through hole 522, and the through hole 522 is communicated with the air conveying channel 48.

When the closure 30 is in the first position P1 and the connecting end 462 is connected to the closure 30, the outer end 502 of each positioning pin 50 enters the positioning ring groove 182a through each notch 142a, the inner end 504 of each positioning pin 50 extends into each cutting groove 302a, the first end 302 of the closure 30 is positioned in the air delivery passage 48 and abuts against the sealing plate 52, and the open side 322 of the axial bore 32 is in communication with the through hole 522 and the air delivery passage 48. When the user rotates the control member 46, the inner end 504 of each positioning pin 50 pushes against the groove wall of each slot 302a, so as to drive the shutter 30 to rotate to the second position P2 along the axial direction thereof. During the rotation, when the outer end 502 of each positioning pin 50 leaves the projected range of each notch 142a, the groove wall 182b of the positioning ring groove 182a limits the outer end 502 of each positioning pin 50 in the positioning ring groove 182a (as shown by the dotted line in fig. 12), whereby, when the closure 30 is rotated from the first position P1 to the second position P2, the positioning ring groove 182a limits the control member 46 from being disengaged, and the first end 302 of the closure 30 stably abuts against the sealing plate 52, so that the gas output from the axial hole 32 of the closure 30 can enter the gas transmission channel 48 of the control member 46 and be transmitted to the gas pipe 100.

When the user does not use the gas, the control member 46 can be rotated reversely to rotate the closure 30 back to the first position P1, so that the closure 30 can block the gas, and the control member 46 can be removed from the gas outlet 142 of the valve body 10.

As described above, the gas switch device 1 of the present invention controls the closure 30 to rotate by the control member 46, and the gas can be transmitted to the gas pipe 100 through the gas transmission channel 48 inside the control member 46, so that the gas can be taken out more conveniently. After use, the operation member 46 and the gas pipe 100 can be removed, and since the closure 30 is inside the valve body 10, the gas will not leak from the gas outlet port 142 due to the false touch of the closure 30, thereby effectively increasing the safety of use.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications to the present invention as described and claimed should be included in the scope of the present invention.

Description of the reference numerals

[ invention ]

1: gas switch device

10: valve body

12: gas inlet part

122: external thread section

124: air inlet channel

14: air outlet part

14a: open end

142: air outlet interface

142a: gap

16: containing hole

18: first hole section

182: connecting channel

182a: positioning ring groove

182b: wall of the tank

20: second hole section

202: side port

22: third bore section

222: shoulder part

24: limiting groove

242: the first blocking part

244: second stop part

26: back cover

28: switch assembly

30: closure

302: first end

302a: cutting groove

304: second end

32: shaft hole

322: open side

324: closed side

34: vent hole

36: drive section

38: conical section

40: extension section

42: elastic piece

422: baffle plate

424: spring

44: stop lever

46: control part

462: connecting end

48: air delivery passage

482: inlet port

50: locating pin

502: outer end of

504: inner end

52: sealing sheet

522: through hole

100: gas pipe

P1: first position

P2: second position

X: first axial direction

Y: second axial direction

Claims (10)

1. A gas switching device includes:

the valve body is provided with an air inlet part and an air outlet part, wherein the air inlet part is provided with an air inlet channel, and the air inlet channel is used for injecting gas; the air outlet part is provided with an air outlet interface and a containing chamber; the wall surface of the accommodating chamber is provided with a side opening communicated with the gas inlet channel;

the switch assembly comprises a shutter, the shutter is positioned in the accommodating chamber and is provided with an axial hole and a vent hole positioned in the radial direction, and the axial hole is communicated with the vent hole and the air outlet interface; the shutter can rotate along the axial direction of the shutter between a first position and a second position, wherein the peripheral surface of the shutter closes the side port in the first position, and the vent hole is communicated with the side port in the second position; and

the gas pipeline comprises an operating control part and a gas pipeline, wherein the operating control part is provided with a connecting end, a gas pipeline is arranged in the operating control part, one end of the gas pipeline forms an inlet at the connecting end, and the other end of the gas pipeline is communicated with a gas pipe; the control element is detachably connected to the air outlet interface through the connecting end, the connecting end is connected with the obturator, and the air conveying channel is communicated with the shaft hole; the operation control piece drives the shutter to rotate between the first position and the second position.

2. The gas switching device according to claim 1, wherein the connection end of the operation member is provided with at least one positioning pin; the air outlet interface of the valve body is provided with a connecting channel, the inner wall of the connecting channel is provided with a positioning ring groove, one end part of the air outlet interface is provided with at least one notch, and the at least one notch is communicated with the positioning ring groove; the at least one dowel pin enters the dowel groove through the at least one notch.

3. The gas switching device according to claim 2, wherein the shutter has a first end and a second end opposite to each other in an axial direction thereof, the shaft hole has an open side and a closed side, the open side is formed at the first end, and the closed side is located between the first end and the second end; the first end has at least one slot and the retainer ring groove is positioned around a radial periphery of the at least one slot; when the shutter is located at the first position, the at least one positioning pin can enter the at least one cutting groove through the at least one notch and can drive the shutter to rotate along the axial direction of the shutter to the second position.

4. The gas switching device according to claim 3, wherein the at least one positioning pin is disposed in a radial direction of the connection end, and the at least one positioning pin has an outer end protruding from a radial periphery of the connection end and an inner end protruding into the gas delivery duct; when the connecting end is connected with the closer, the first end of the closer is positioned in the gas transmission channel, the inner end of the at least one positioning pin extends into the at least one cutting groove, and the outer end of the at least one positioning pin extends into the positioning ring groove.

5. The gas switching device according to claim 4, wherein a sealing piece is disposed in the gas transmission passage, the sealing piece has a through hole communicated with the gas transmission passage, when the connecting end is connected to the closing piece, the first end of the closing piece abuts against the sealing piece, and the open side of the shaft hole is communicated with the through hole.

6. The gas switching device according to claim 3, wherein the groove wall of the positioning ring groove restrains the at least one positioning pin in the positioning ring groove when the at least one positioning pin rotates the closure in the axial direction thereof to the second position.

7. The gas switching device according to claim 2, wherein the gas outlet portion has a receiving hole having a first hole section, a second hole section and a third hole section, the first hole section having the connection passage; the second hole section is located between the first hole section and the third hole section, the hole wall of the second hole section is conical and forms the accommodating chamber, and the hole diameter of the second hole section is gradually reduced from the first hole section to the third hole section; the junction of the third hole section and the second hole section is provided with a shoulder part; the shutter comprises a conical section and an extension section, the peripheral surface of the conical section is matched with the hole wall of the second hole section, and the vent hole is positioned on the conical section; the extension section is connected to the conical section and is positioned on a third hole section of the accommodating hole; the switch component comprises an elastic piece, one end of the elastic piece is abutted against the shoulder part, the other end of the elastic piece provides force in a direction departing from the shoulder part to the extension section, and the outer peripheral surface of the conical section is abutted against the hole wall of the second hole section.

8. The gas switch device according to claim 7, wherein said switch assembly comprises a stopper, said stopper is disposed on the extension section of said shutter, and the other end of said elastic member abuts against said stopper.

9. The gas switch device according to claim 8, wherein said elastic member comprises two blocking pieces and a spring, said two blocking pieces are sleeved on said extension section, and one of said blocking pieces abuts against said shoulder, and the other of said blocking pieces abuts against said blocking piece; the spring is sleeved on the extension section and is positioned between the two blocking pieces.

10. The gas switch device according to claim 8, wherein the gas outlet portion of the valve body has a limiting groove, the limiting groove communicates with the third hole section of the accommodating hole, the limiting groove has a first stopping portion and a second stopping portion, and the stopping portion extends into the limiting groove; when the shutter rotates to the first position, the blocking part is abutted to the first blocking part; when the shutter rotates to the second position, the blocking part is abutted to the second blocking part.

Images