TW202016454A - Fuel gas switch device with lifting valve plug characterized in controlling an input passageway of fuel gas to be closed or opened via a valve plug being descended or lifted - Google Patents

Abstract

A fuel gas switch device with a lifting valve plug includes a valve seat, a valve plug controlled by a rotary button, a partition plate, a compression spring, and a guiding seat. An input passageway, an output passageway, an inner chamber part and an installing part are disposed inside the valve seat. A top end of the inner chamber part is in communication with the installing part, a bottom end thereof is in communication with the input passageway, and a lateral surface thereof is in communication with the output passageway. The partition plate is fastened between the installing part and the inner chamber part. The guiding seat is disposed above the partition plate. A top end of the valve plug penetrates the partition plate and the guiding seat, so that a bottom end of the valve plug is able to be disposed in the inner chamber part. The compression spring is compressed between the partition plate and the bottom end of the valve plug. A surrounding convex wall is formed on a hole edge defined at a top end of a penetrated hole of the guiding seat, and two recesses arranged in a front/rear corresponding manner are formed on the convex wall. A spring inserting pin is disposed on the valve plug. The rotary button is able to drive the valve plug to rotate, so that the spring inserting pin is able to be guided in the recesses of the convex wall of the guiding seat or lifted to a highest position of the convex wall, so as to control the valve plug to be descended to close the input passageway, or control the valve plug to be lifted for allowing the input passageway to be in an opened status.

Description

Gas switching device with lifting valve plug

The invention relates to a gas switching device with a lifting valve plug, the gas transmission path of which extends in an L shape, and can be used in a place where the gas pipeline must be connected at right angles. In addition, the present invention uses the lifting operation of the valve plug to control the gas delivery flow path to be smooth or closed.

Whether it is domestic gas or industrial gas, it is transported to the user end through the delivery pipe. Users only need to turn on the gas switch to ignite and use, which is extremely convenient. Figures 1 and 2 show the gas switch 10 sold in the workshop. The input port 11 and the output port 12 are linearly extended. A valve plug 13 with a lateral perforation 131 is used to close the gas delivery path or make the gas The conveying path is smooth. When the gas outlet pipe 16 must be vertically connected in an L-shape, an elbow joint 14 must be connected before the gas switch 10 is installed, as shown in FIG. 3. In this way, the work flow for installing the gas switch 10 will be increased, and components will also be added.

When the hose 17 connected to the output port of the gas switch 10 breaks or falls off, a large amount of gas will overflow, which may easily cause fire or carbon monoxide poisoning. Therefore, an over-flow sealing device 15 may be provided in the transmission hole of the gas switch 10, and when the gas flow rate is abnormally large, the gas transmission hole may be blocked in time, as shown in FIG. 3. When the state of closing the conveying path of the super-flow closing device 15 is to be released, as long as the valve plug 13 is rotated, the top end 152 of the umbrella cap 151 is pushed by the valve plug 13 to cause the umbrella cap 151 to retreat, gas flows, and the umbrella Cap 151 flat pressure at both ends After balancing, the restoring force of the compression spring 153 returns the umbrella cap 151 to its original position without interrupting the gas transportation path.

The main object of the present invention is to provide a gas switch device with a lifting valve plug, which controls the closed gas delivery path to be unblocked or closed by operating the valve plug to move up and down.

The next object of the present invention is to provide a gas switch device with a lifting valve plug, which can push the super-flow sealing device to recover when the super-flow sealing device closes the fuel gas flow path by operating the valve plug to descend In place before starting in place.

Another object of the present invention is to provide a gas switch device with a lifting valve plug, which can be directly installed when the installation site must be connected at a right angle to simplify the installation process and reduce piping parts.

The gas switching device provided with the lifting valve plug provided by the invention comprises a valve seat, a valve plug controlled by a knob, a partition plate, a compression spring, and a guide seat. The valve seat is provided with an input hole, an output hole, an inner cavity part, and an installation part. The input channel is located below the inner cavity, and the inner cavity and the input channel are connected by a first perforation. The mounting portion is located at the top of the valve seat. The side of the inner cavity is provided with a second perforation, and the second perforation makes the inner cavity and the output hole communicate with each other. Then, the input channel, the inner cavity portion, and the output channel constitute an L-shaped gas delivery flow channel. The partition is fixed between the mounting part and the inner cavity, and a through hole is provided in the center of the partition. The valve plug is cylindrical, and a rubber pad is fixed at the bottom of the valve plug. The upper part of the valve plug penetrates the through hole of the partition plate, and a spring latch is laterally fixed on the upper part of the valve plug. The compression spring is pressed between the partition plate and the lower end of the valve plug, and penetrates outside the valve plug. With the restoring force of the compression spring, the valve plug is pushed down. The The guide seat is arranged in the installation part and is located above the partition board. A through hole is provided in the center of the guide seat for the valve plug to penetrate. The upper edge of the through hole is provided with a ring of convex walls, and the convex wall is provided with two notches corresponding to the front and back, and one side wall of the two notches is a slope. The two ends of the spring plug on the valve plug are located at the top of the convex wall of the guide seat. The knob drives the valve plug to rotate, so that the spring latch can be introduced into the recess of the convex wall of the guide seat or climb to the highest position of the convex wall to control the valve plug to close the first perforation or control the The valve plug rises to make the first perforation smooth.

The lower end of the valve plug is provided with an outwardly expanding flange. The lower end of the compression spring contacts the top surface of the flange. The bottom end of the valve plug is provided with a concave hole for the rubber pad to be inserted and fixed. When the valve seat is lowered, the rubber pad is sufficient to close the first perforation.

The outer diameter of the valve plug is smaller than the inner diameter of the inner cavity portion.

The partition has external threads. A screw hole is relatively arranged inside the valve seat. The external thread of the partition is screwed with the screw hole inside the valve seat, and the partition is fixed in the valve seat.

The periphery of the guide base is provided with two concave holes in a corresponding pattern on the left and right. The valve seat is oppositely provided with a small hole, and the small hole fixes a positioning pin in a buried manner. The inner end of the positioning pin is embedded in any concave hole of the guide seat, so that the guide seat cannot rotate.

10‧‧‧Gas switch

11‧‧‧Input channel

12‧‧‧ output port

13‧‧‧Valve plug

14‧‧‧Elbow joint

15‧‧‧Overflow sealing device

151‧‧‧ Umbrella hat

152‧‧‧Top

153‧‧‧Compression spring

16‧‧‧Gas output pipe

17‧‧‧Hose

20‧‧‧Valve seat

21‧‧‧Input channel

22‧‧‧Output hole

23‧‧‧Inner cavity

231‧‧‧ first perforation

232‧‧‧Second Perforation

233‧‧‧screw hole

234‧‧‧Flange

24‧‧‧Installation Department

25‧‧‧Horizontal channel

26‧‧‧Eye

27‧‧‧positioning pin

30‧‧‧Valve plug

31‧‧‧Kagou

32‧‧‧Notch

33‧‧‧rubber pad

34‧‧‧Flange

35‧‧‧Eye

36‧‧‧Spring latch

40‧‧‧ knob

41‧‧‧bolt

42‧‧‧Compression spring

50‧‧‧Partition

51‧‧‧Through hole

52, 53‧‧‧ leakproof ring

54‧‧‧Male thread

55‧‧‧Slotted slot

60‧‧‧Compression spring

61‧‧‧Gasket

70‧‧‧Guide seat

71‧‧‧Through hole

72‧‧‧Convex wall

721‧‧‧Notch

722‧‧‧Bevel

73‧‧‧Concave

80‧‧‧Super flow closed device

81‧‧‧ Umbrella hat

82‧‧‧Circular copper seat

821‧‧‧Perforation

90‧‧‧Overheat closing device

Figure 1 is an external view of a conventional gas switch.

Fig. 2 is a cross-sectional view of the user shown in Fig. 1.

Figure 3 is a diagram of the usage status of the user shown in Figure 1.

Figure 4 is an external view of an embodiment of the present invention

FIG. 5 is a usage state diagram of the embodiment shown in FIG. 4.

Fig. 6 is an exploded view of the embodiment shown in Fig. 4.

7 is a cross-sectional view of the embodiment shown in FIG.

Figure 8 is a state diagram of the smooth flow of the gas delivery channel.

Fig. 9 is a state diagram of the gas flow channel closed by the over-flow sealing device.

Please refer to Figure 4~Figure 7. The gas switch device with lifting valve plug disclosed by the present invention includes a valve seat 20 and a valve plug 30 controlled by a knob 40. The internal flow passage of the valve seat 20 adopts an L-shaped design, so that the input passage 21 and the output passage 22 of the gas are in vertical communication with each other. Then, the gas switching device can be directly connected to the gas outlet pipe 16 and assume a state of vertical connection. As shown in Figure 5.

The aforementioned valve seat 20 is provided with an input hole 21, an output hole 22, an inner cavity portion 23, and a mounting portion 24. The inner cavity portion 23 is disposed between the input hole 21 and the output hole 22 to communicate the input hole 21 and the output hole 22. The input channel 21 is located below the inner cavity portion 23, and the inner cavity portion 23 and the input channel 21 are connected by a first through hole 231. The mounting portion 24 is located at the top of the valve seat 20 and above the inner cavity portion 23. A second through hole 232 is defined on the side of the inner cavity 23. By virtue of the second perforation 232, the inner cavity 23 and the output channel 22 are in communication.

The top end of the valve seat 20 is provided with two horizontal channels 25 in a corresponding manner. The top end of the valve plug 30 is provided with a clamping groove 31. The knob 40 is screwed with a latch 41, and the latch 41 passes through the slot 31 at the top of the valve plug 30 and the two horizontal channels 25 at the top of the valve seat 20. Then, the knob 40 can drive the valve plug 30 to reciprocate at an angle of 90°. The connection between the knob 40 and the valve plug 30 is a conventional structure and is not a technical feature claimed by the present invention, so it will not be described in more detail.

The valve plug 30 is cylindrical, and the bottom of the valve plug is provided with a concave hole 32 at the bottom. A rubber pad 33 is inserted and fixed, so that the rubber pad 33 forms the bottom surface of the valve plug 30. The lower end of the valve plug 30 is provided with a flange 34 protruding outward, so that the valve plug 30 is formed at the flange 34 with an enlarged outer diameter. The valve plug 30 is provided with a through hole 35 extending laterally and crossing the center of the valve plug. A spring plug 36 penetrates the small hole 35 and is fixed on the valve plug 30. Meanwhile, both ends of the spring latch 36 protrude from both ends of the small hole 35. The outer diameter of the valve plug 30 is smaller than the inner diameter of the inner cavity portion 23 so that gas can be input into the inner space of the inner cavity portion 23.

The inside of the mounting portion 24 of the valve seat 20 communicates with the inner cavity portion 23. A screw hole 233 is provided in the communicating portion. The screw hole 233 can be screwed with a partition 50 to separate the interior of the mounting portion 24 and the inner cavity portion 23. A through hole 51 is provided in the center of the partition 50. The upper end of the valve plug 30 penetrates the through hole 51 and extends into the interior of the mounting portion 24. Then, the lower half of the valve plug 30 is located in the inner cavity portion 23. A leakage prevention ring 52, 53 is inserted into the top end and the bottom end of the through hole 51 of the partition 50 respectively, so that the through hole 51 of the partition 50 and the valve plug 30 are formed into an airtight shape. The outer peripheral wall of the partition plate 50 has an external thread 54 and can be screwed into the screw hole 233 in the valve seat 20 to fix the partition plate 50. Between the external thread 54 of the partition plate 50 and the screw hole 233 inside the valve seat 20 is coated with an oxidation leak-proof glue, so as to have a leak-proof performance. The top surface of the partition plate 50 is a plate surface with an enlarged outer diameter. By pressing the plate surface at the upper edge of the screw hole 233, the partition plate 50 is locked in position. The top of the partition 50 is provided with a "slot 55", and the partition 50 can be locked into position by a flat tool.

The lower half of the valve plug 30 is sleeved with a compression spring 60. The compression spring 60 is pressed between the partition plate 50 and the flange 34 at the lower end of the valve plug 30. With the restoring force of the compression spring 60, the valve plug 30 is pushed downward. In the meantime, a washer 61 is provided between the partition plate 50 and the compression spring 60. The upper end of the compression spring 60 abuts against the washer 61 to protect the leakage prevention ring 53. The lower end of the compression spring 60 abuts against the top surface of the lower flange 34 of the valve plug 30.

A guide seat 70 is fixed in the mounting portion 24 of the valve plug 20. A through hole 71 is provided in the center of the guide seat 70 for the upper end of the valve plug 30 to pass through. A ring of convex walls 72 is provided on the upper edge of the through hole 71, and the convex wall 72 is provided with two notches 721 provided in a corresponding manner. One side wall of the two recesses 721 is a slope 722. The peripheral edge of the guide base 70 is provided with two concave holes 73 in a corresponding pattern. The valve seat 20 is oppositely provided with a small hole 26 which fixes a positioning pin 27 in a buried manner. The inner end of the positioning pin 27 is inserted into any concave hole 73 of the guide base 70, so that the guide base 70 cannot rotate. Another compression spring 42 is pressed between the knob 40 and the guide base 70 to keep the guide base 70 pressed to the lowest position.

The two ends of the spring plug 36 on the valve plug 30 are located at the top of the convex wall 72 of the guide seat 70. When the knob 40 drives the valve plug 30 to close the gas flow path, the spring latch 36 will be introduced into the recess 721 of the convex wall of the guide seat 70 to lower the valve plug 30. Then, by virtue of the restoring force of the compression spring 60, the valve plug 30 is given the power to move downward, and the first through hole 231 is closed, and the gas flow channel is closed, as shown in FIG. The edge of the upper hole of the first through hole 231 protrudes upwards with a slightly raised flange 234. By virtue of the slightly high flange 234 squeezing into the bottom of the rubber pad 33 at the bottom of the valve plug 30, the first through hole 231 is indeed closed.

When the knob 40 drives the valve plug 30 to rotate to make the gas delivery flow path clear, the two ends of the spring latch 36 will climb to the highest position of the convex wall 72, so that the valve plug 30 rises and no longer closes the first Perforation 231, as shown in Figure 8. Then, the gas in the input hole 21 will be sent out of the valve seat 20 through the first hole 231, the inner cavity 23, the second hole 232, and the output hole 22. In the meantime, both ends of the spring latch climb along the side wall of the inclined surface 722 of the recess 721.

A conventional over-flow sealing device 80 is provided in the input channel. When an over-flow occurs, the umbrella cap 81 of the over-flow closing device 80 will automatically close the perforation 821 of an annular copper seat 82, such as Figure 9 shows. In the meantime, as long as the valve plug 30 is operated to move downward, the umbrella cap 81 can be pushed down to return the umbrella cap 81 to its original position, and the perforation 821 of the annular copper seat 82 is no longer closed.

In summary, the gas switching device with a lifting valve plug provided by the present invention can be used on a vertical conveying pipeline to simplify the installation process. The valve plug 30 of the present invention completes the structure of opening and closing the gas delivery flow path in a lifting manner, which is the first of its kind in a gas switching device. In practice, the conventional overheating sealing device can also be added to further improve the safety of the present invention.

The above describes the present invention in detail with preferred embodiments, but does not limit the scope of the present invention. Those who are familiar with such skills will be able to understand that appropriate and slight changes and adjustments will still not lose the gist of the present invention, and will not deviate from the spirit and scope of the present invention.

20‧‧‧Valve seat

21‧‧‧Input channel

22‧‧‧Output hole

23‧‧‧Inner cavity

231‧‧‧ first perforation

232‧‧‧Second Perforation

233‧‧‧screw hole

234‧‧‧Flange

24‧‧‧Installation Department

27‧‧‧positioning pin

30‧‧‧Valve plug

31‧‧‧Kagou

32‧‧‧Notch

33‧‧‧rubber pad

34‧‧‧Flange

36‧‧‧Spring latch

40‧‧‧ knob

41‧‧‧bolt

42‧‧‧Compression spring

50‧‧‧Partition

52, 53‧‧‧ leakproof ring

54‧‧‧Male thread

55‧‧‧Slotted slot

60‧‧‧Compression spring

61‧‧‧Gasket

70‧‧‧Guide seat

72‧‧‧Convex wall

721‧‧‧Notch

722‧‧‧Bevel

73‧‧‧Concave hole

80‧‧‧Super flow closed device

81‧‧‧ Umbrella hat

82‧‧‧Circular copper seat

821‧‧‧Perforation

90‧‧‧Overheat closing device

Claims (9)

A gas switch device with a lifting valve plug includes: a valve seat, which is provided with an input hole, an output hole, an inner cavity part, and an installation part; the inner cavity part is arranged on the input hole and Between the output channel to connect the input channel and the output channel; the input channel is located below the inner cavity, and the inner cavity and the input channel are connected by a first perforation; the installation The part is located above the inner cavity part; the side of the inner cavity part is provided with a second perforation; by virtue of the second perforation, the inner cavity part and the output channel are connected; then the input channel and the inner cavity part 3. The output hole constitutes an L-shaped gas delivery flow channel; a baffle plate is fixed between the mounting portion and the inner cavity portion; a through hole is provided in the center of the baffle plate; at the top and bottom of the through hole Each end is embedded with a leak-proof ring; a valve plug controlled by a knob, which is cylindrical, and a rubber pad is fixed at the bottom of the valve plug; the knob is provided on the mounting portion of the valve seat, which can drive the valve plug Reciprocating at an angle of 90°; the valve plug penetrates the through hole of the partition; the valve plug is provided with a through-shaped small hole extending laterally and crossing the center of the valve plug; the outer diameter of the valve plug is smaller than the inner cavity The inner diameter of the part; a compression spring, which is arranged in the inner cavity portion of the valve seat and penetrates outside the valve plug; the compression spring is pressed between the partition plate and the lower end of the valve plug; By virtue of the restoring force of the compression spring, the valve plug is pushed downward; a guide seat is fixed in the mounting portion; a through hole is provided in the center for the valve plug to pass through; the upper end hole of the through hole The rim is provided with a ring of convex walls, which are provided with two notches corresponding to the front and the rear; one side wall of the two notches is a slope; a spring latch, which penetrates the small hole of the valve plug and is fixed to the valve plug The two ends of the spring plug protrude from the two ends of the small hole; the two ends of the spring plug are located at the top of the convex wall of the guide seat; the knob drives the valve plug to rotate, so that the spring plug can be introduced into the guide In the recess of the convex wall of the seat Either climb to the highest position of the convex wall to control the valve plug to descend to close the first perforation, or control the valve plug to rise to make the first perforation smooth. A gas switch device with a lifting valve plug as described in item 1 of the patent application scope, wherein the lower end of the valve plug is provided with an outwardly expanding flange; the lower end of the compression spring is in contact with the top of the flange surface. A gas switch device with a lifting valve plug as described in item 2 of the patent application scope, wherein the bottom end of the valve plug is provided with a recessed hole for the rubber pad to be inserted and fixed. As described in item 2 of the patent application scope, a gas switching device with a lifting valve plug, wherein a gasket is provided between the partition plate and the compression spring; the upper end of the compression spring abuts against the bottom surface of the gasket to protect A leak-proof ring provided at the lower end of the through hole of the separator. The gas switch device with a lifting valve plug as described in item 1 of the patent application scope, wherein the upper edge of the first perforated hole in the valve seat is upwardly projected with a slightly high flange; by virtue of the slightly high The flange squeezes into the bottom of the rubber pad, closing the first perforation. The gas switch device with a lifting valve plug as described in item 1 of the patent scope, wherein the partition is provided with external threads; the valve seat is provided with a screw hole inside; the external thread of the partition and the valve The screw holes inside the seat are screwed together to fix the partition in the valve seat. As described in item 6 of the patent application scope, a gas switching device with a lifting valve plug, wherein an oxidation leakproof glue is coated between the external thread of the partition and the screw hole inside the valve seat. The gas switch device with lifting valve plug as described in Item 1 of the patent application scope, wherein the periphery of the guide seat is provided with two concave holes in a corresponding pattern on the left and right; the valve seat is provided with a small hole opposite , The small hole fixes a positioning pin by embedding; the inner end of the positioning pin is embedded in any concave hole of the guide seat, so that the guide seat cannot rotate. The gas switch device with lifting valve plug as described in item 1 of the patent application scope, wherein the top end of the valve seat is provided with two horizontal channels in front and rear corresponding ways; the top end of the valve plug is provided with A locking groove; the knob is screwed with a bolt, and the bolt passes through the clamping groove at the top of the valve plug and the two horizontal grooves at the top of the valve seat, so that the knob can drive the valve plug to reciprocate at an angle of 90° Turn; In addition, another compression spring is pressed between the knob and the guide seat.

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