TWI596306B - Gas switch structure and controlling method thereof - Google Patents

Description

Gas switch structure and control method thereof

The invention provides a gas switch structure and a control method thereof, in particular to a gas switch structure applied to a gas furnace and a control method thereof.

In order to cook food, every household usually purchases a gas stove. The gas stoves are equipped with knob switches. When you need to use the heat source to cook food, just turn the knob switch to let the valve open, so that the gas can pass. Conducive to ignition heating. At present, most of the commercially available gas stoves use mechanical knob switches. The operation mode is to first press the knob switch to turn on the ignition mechanism, and then rotate the knob switch to control the firepower.

However, if the conventional knob switch is not depressed, although the micro switch can be activated to ignite the valve, the safety valve is not fully opened, and the safety valve cannot be properly adsorbed, resulting in ignition failure.

In summary, the present inventors have felt that the above-mentioned defects can be improved, and the present invention has been put forward with great interest in designing and cooperating with the theory, and finally proposes a invention which is reasonable in design and effective in improving the above-mentioned defects.

The technical problem to be solved by the present invention is to provide a gas switch structure and a control method thereof, and the rotating shaft must be pressed down to the end to release the rotation limit and make the safety The valve is fully opened and the safety valve can be properly sucked, which can effectively avoid ignition failure.

In order to solve the above technical problem, the present invention provides a gas switch structure, comprising: a switch body, the switch body has an air inlet and an air outlet, and a gas flow path is disposed between the air inlet and the air outlet; The fixing base is disposed on the switch body, the fixing base is provided with a shaft hole and a first fixing portion, the first fixing portion is fixed with a first micro switch for controlling ignition, the switch body and the fixing base One of the two is elastically disposed with a safety pin; a rotating shaft is disposed through the shaft hole of the fixing base, so that the rotating shaft is rotatably disposed on the fixing seat, and the lower end of the rotating shaft penetrates the shaft a first rotating plate, the first rotating plate is disposed on the rotating shaft, and the first rotating plate is provided with a limiting portion; a second rotating plate, the second rotating plate is disposed on the rotating shaft, and the second rotating plate is located above the first rotating plate, the second rotating plate is provided with an unlocking pin, the unlocking pin and the safety pin Corresponding to this The rotating plate has a first micro switch contact portion for actuating the first micro switch; the upper end of the safety pin can extend into the limiting portion of the first rotating plate for providing the rotating shaft, the first rotating plate and The rotation of the second rotating plate is restricted; when the rotating shaft is pressed to move the second rotating plate and the unlocking pin is moved downward, the safety pin can be pushed out of the restricting portion of the first rotating plate to release the rotation restriction; And an elastic element that is moved up against the second rotating plate to be reset.

In order to solve the above technical problem, the present invention further provides a control method for a gas switch structure, the gas switch structure having a switch body, a fixed seat, a rotating shaft, a first rotating plate and a second rotating plate, the switch One of the body and the fixing seat is elastically disposed with a safety pin, and the first rotating plate and the second rotating plate are disposed on the rotating shaft, and the first rotating plate is provided with a limiting portion, and the upper end of the safety pin can a limiting portion extending into the first rotating plate for providing rotation of the rotating shaft, the first rotating plate and the second rotating plate, wherein the second rotating plate is located above the first rotating plate, the second rotation The plate is provided with an unlocking pin corresponding to the safety pin, and the control method comprises the following steps: when the gas furnace is in a closed state, the device is to be opened In the gas furnace, the rotating shaft is pressed in a vertical direction to interlock the second rotating plate and the unlocking pin to move downward, and the unlocking pin pushes the safety pin downward to move the safety pin away from the a restricting portion of the first rotating plate to release the rotation limit, and simultaneously opening a safety valve; rotating the rotating shaft, the rotating shaft drives a closing rotation to open the gas passage, and the first rotating plate touches a first micro-motion The ignition is performed by the switch; when the ignition is successful, the thermocouple is sensed and the signal is transmitted to keep the safety valve coil energized open; and when the gas furnace is to be turned off, the rotary shaft is rotated and the rotation axis is along the vertical direction. The upper reset causes the closure to close the gas and the safety valve is closed.

The present invention has at least the following advantages: the gas switch structure of the present invention is elastically provided with a safety pin, and the upper end of the safety pin extends into the restricting portion of the first rotating plate, so that the rotating shaft cannot be rotated under normal conditions, and the safety lock can be achieved. Features. When the rotating shaft is pressed to move the second rotating plate and the unlocking pin to move downward, the safety pin is pressed down to be lower than the first rotating plate, so that the safety pin is disengaged from the restriction portion of the first rotating plate, and the rotation limit can be released to drive The rotating shaft drives the closed rotor to turn on the gas. Because the restriction mechanism is located below, the rotation axis must be pressed down to the end to release the rotation limit, so that the safety valve is fully opened, the safety valve can be properly adsorbed, and the ignition failure can be effectively avoided.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

1‧‧‧Switch body

11‧‧‧air inlet

12‧‧‧ air outlet

13‧‧‧ gas flow path

14‧‧‧ openings

15‧‧‧Safety pin

16‧‧‧ accommodating slots

17‧‧‧Safety pin spring

2‧‧‧ Fixed seat

21‧‧‧ screws

22‧‧‧Axis hole

23‧‧‧First Fixed Department

24‧‧‧Second fixed department

25‧‧ ‧ pinhole

3‧‧‧Rotary axis

31‧‧‧The next section

4‧‧‧First rotating plate

41‧‧‧First positioning hole

42‧‧‧Restrictions

43‧‧‧Second micro switch touch

44‧‧‧ Groove

45‧‧‧Protruding

5‧‧‧Second rotating plate

51‧‧‧Second positioning hole

52‧‧‧Unlocking pin

53‧‧‧First micro switch touch

54‧‧‧fasteners

6‧‧‧Flexible components

7‧‧‧Safety valve

71‧‧‧Top valve stem

8‧‧‧First micro switch

9‧‧‧Second micro switch

10‧‧‧ Closed

20‧‧ ‧ lever

30‧‧‧Upper cover

301‧‧‧ screws

1 is an exploded perspective view of a gas switch structure of the present invention.

2 is a perspective assembled view of the gas switch structure of the present invention.

Figure 3 is a cross-sectional view (1) of the gas switch structure of the present invention.

Figure 4 is a cross-sectional view (2) of the gas switch structure of the present invention.

Figure 5 is a cross-sectional view (3) of the gas switch structure of the present invention.

Fig. 6 is a schematic view showing the structure of the sounding sound of the present invention.

7 is a flow chart of a method of controlling a gas switch structure of the present invention.

[First Embodiment]

Referring to FIG. 1 to FIG. 5, the present invention provides a gas switch structure including a switch body 1, a fixing base 2, a rotating shaft 3, a first rotating plate 4, a second rotating plate 5, and an elastic member 6. .

The switch body 1 has an air inlet 11 and at least one air outlet 12, and the number of the air outlets 12 is not limited, and may be one, two or several (such as three), in this embodiment, the air outlet 12 is set to two corresponding to the inner ring and outer ring of the gas burner. The air inlet 11 is connected to the gas source by a pipeline, and the air outlets 12 are respectively connected by pipes to the inner ring and the outer ring of the gas burner. A gas flow path 13 is provided between the air inlet 11 and the air outlet 12. Thereby, the gas input from the air inlet 11 can be controlled by the safety valve 7 and the closed body 10, and then sent to the gas burner through the air outlet 12 to increase the safety of use. The switch body 1 can be provided with an opening 14 which can be located at the top of the switch body 1 or the like.

The switch body 1 is provided with a safety valve 7 that communicates with the gas flow passage 13. The safety valve 7 needs to be manually opened by the rotating shaft 3, that is, the safety valve 7 has a top valve stem 71. When the top valve stem 71 is pressed, the safety valve 7 is opened, so that the gas flow passage 13 It can be turned on. The safety valve 7 can also be electrically connected to a thermocouple (not shown). The thermocouple is arranged on the gas burner and can be used to detect the temperature of the gas burner. When the gas burner is turned off due to wind blowing or overflowing soup. At this time, the safety valve 7 can be controlled to be immediately closed for safety. Since the structure in which the gas passage 13 is opened and closed by the safety valve 7 is substantially the same as the prior art, it will not be described.

The switch body 1 is elastically disposed with a safety pin 15 , and a accommodating groove 16 is disposed on the switch body 1 . The safety pin 15 can be lifted and lowered in the accommodating groove 16 . A safety pin spring 17 is disposed between the slots 16 and the safety The full pin spring 17 can abut against the safety pin 15 to move the safety pin 15 upward, whereby the safety pin 15 is elastically disposed on the switch body 1. The safety pin 15 can be in the form of a circular cylinder, and the upper end of the safety pin 15 can be reduced in diameter so that the upper end of the safety pin 15 is in a constricted shape.

The fixing base 2 is disposed on the switch body 1 , that is, the fixing base 2 can be disposed at the opening 14 of the switch body 1 to close the opening 14 . The fixing base 2 can be fixed to the switch body by means of a screw 21 or the like. 1. Of course, the fixing base 2 can also be disposed on the switch body 1 by means of snapping, welding or integral molding. The fixing base 2 is provided with a shaft hole 22 for the rotating shaft 3 to pass through. The fixing base 2 is provided with a first fixing portion 23 for fixing a first micro switch 8. The fixing base 2 can also be further provided with a second fixing portion 24 for fixing a second micro switch 9. The first micro switch 8 and the second micro switch 9 are electrically connected to the electric control unit of the gas furnace. The first micro switch 8 can be used to control the ignition of the gas furnace. The second micro switch 9 can further control the timing of the gas furnace. Fixed temperature and anti-air burning functions. The fixing base 2 can be provided with a pin hole 25 corresponding to the safety pin 15 so that the upper end of the safety pin 15 can protrude out of the fixing seat 2 through the pin hole 25. However, the arrangement of the pin hole 25 is not limited, and the structure can be replaced by a structure such as an opening, and the safety pin 15 can be elastically disposed on the fixing base 2, that is, the safety pin 15 can be disposed on the switch body 1 and the fixing base 2 One of the two. The manner in which the safety pin 15 is elastically disposed is not limited, and may be elastically disposed on the switch body 1 or the fixed seat 2 by means of a spring piece or other elastic member.

The rotating shaft 3 is substantially a circular shaft body. In the embodiment, the cross section of the lower portion 31 of the rotating shaft 3 is formed in a D shape to facilitate positioning the first rotating plate 4 and the second rotating plate 5 to rotate the shaft. 3. The first rotating plate 4 and the second rotating plate 5 can be rotated synchronously. The rotating shaft 3 is disposed through the shaft hole 22 of the fixing base 2 such that the rotating shaft 3 is rotatably disposed on the fixing base 2, and the lower end of the rotating shaft 3 can penetrate the inside of the switch body 1. The upper end of the rotating shaft 3 can be connected with a general knob (not shown), so that the rotating shaft 3 can be pressed and rotated by the knob, and the lower end of the rotating shaft 3 can be connected to A closure (cock) 10 is disposed in the gas flow passage 13 and located downstream of the safety valve 7 to open or close the gas flow passage 13 by the rotation of the closure 10.

The lower end of the rotating shaft 3 can be connected to the top valve stem 71 of the safety valve 7 through the closing member 10 and a lever 20, so that the lower valve of the rotating shaft 3 can be pressed by the lever 20 to press the top valve stem 71. The safety valve 7 is opened and the gas flow path 13 is opened. Therefore, the gas input from the air inlet 11 can be sequentially controlled by the safety valve 7 and the closed body 10, and then sent to the gas burner via the air outlet 12.

The first rotating plate 4 is a plate-shaped body, and the first rotating plate 4 is disposed on the rotating shaft 3. In this embodiment, the first rotating plate 4 has a first positioning hole 41, and the first positioning hole 41 is formed in a D shape, and the first positioning hole 41 of the first rotating plate 4 is sleeved on the lower part of the rotating shaft 3. The portion 31 rotates the first rotating plate 4 in synchronism with the rotating shaft 3. A sliding fit (upper and lower sliding fit) is formed between the first positioning hole 41 of the first rotating plate 4 and the rotating shaft 3, so that the rotating shaft 3 can move up and down within the first positioning hole 41. The first positioning hole 41 of the first rotating plate 4 and the rotating shaft 3 can also be positioned by other means, and the positioning effect can be generated by the non-circular matching between the two, so that the first rotating plate 4 and the rotating The shaft 3 can be rotated synchronously.

The first rotating plate 4 is provided with a restricting portion 42. The configuration of the restricting portion 42 is not limited, and may be, for example, a groove, a hole or a surface, as long as it can function as a stop limit. In this embodiment, the The restricting portion 42 is a groove (restricting groove) corresponding to the pin hole 25 and the safety pin 15, so that the upper end of the safety pin 15 can protrude out of the fixing seat 2 through the pin hole 25, thereby extending into the first portion. The restricting portion 42 of the plate 4 is rotated to restrict the rotation of the rotating shaft 3, the first rotating plate 4, and the second rotating plate 5 by the safety pin 15.

The first rotating plate 4 can further have a second micro switch switch portion 43. When the first rotating plate 4 rotates, the second micro switch switch 43 can be used to touch the second micro switch 9 for controlling the gas. Furnace timing, constant temperature and anti-air burning.

The second rotating plate 5 is a plate-shaped body, and the second rotating plate 5 is disposed on the rotating shaft 3 Upper, and the second rotating plate 5 is located above the first rotating plate 4. In this embodiment, the second rotating plate 5 has a second positioning hole 51. The second positioning hole 51 is formed in a D shape, and the second positioning hole 51 of the second rotating plate 5 is sleeved on the lower portion of the rotating shaft 3. The portion 31 rotates the second rotating plate 5 in synchronism with the rotating shaft 3. The second positioning hole 51 of the second rotating plate 5 and the rotating shaft 3 can also be positioned by other means, and the positioning effect can be generated by the non-circular matching between the two, so that the second rotating plate 5 and the rotating The shaft 3 can be rotated synchronously. The second positioning hole 51 of the second rotating plate 5 and the rotating shaft 3 may also form an interference fit, or cooperate with other fasteners 54 such that the second rotating plate 5 is fixed to the rotating shaft 3 at a predetermined height position. The second rotating plate 5 can be moved up and down in synchronization with the rotating shaft 3.

The unlocking pin 52 is disposed on the second rotating plate 5, and the unlocking pin 52 is disposed on the second rotating plate 5 by a combination or integral molding. The unlocking pin 52 protrudes from the second rotating plate 5 a bottom portion, and the unlocking pin 52 corresponds to the safety pin 15 so as to push the safety pin 15 downward by the unlocking pin 52, so that the upper end of the safety pin 15 can be disengaged from the restriction portion 42 of the first rotating plate 4 for releasing the rotation By this limitation, the rotating shaft 3, the first rotating plate 4, and the second rotating plate 5 can be rotated.

The second rotating plate 5 has a first micro switch actuation portion 53. The first micro switch actuation portion 53 can be in the shape of a fan. When the rotating shaft 3 is pressed to move the second rotating plate 5 downward, the first micro switch The touch portion 53 can be at the same level as the first micro switch 8 such that when the second rotating plate 5 rotates, the first micro switch switch portion 53 can be used to activate the first micro switch 8 for controlling the ignition of the gas furnace. Through the structure of the second rotating plate 5, the first micro switch switch 53 is activated to start the ignition by the first micro switch touch portion 53 to rotate until 30 degrees, and the inner ring and the outer ring are rotated. Gas is the biggest.

The elastic member 6 can be disposed between the first rotating plate 4 and the second rotating plate 5. The elastic member 6 is not provided, and can be an elastic body such as a compression spring or a spring. In the embodiment, the elastic member 6 is a compression spring, which is sleeved on the rotating shaft 3, and the two ends of the elastic member 6 respectively abut against the top of the first rotating plate 4 and the second rotating plate 5 The bottom of the bottom portion can be moved upward by the elastic member 6 against the second rotating plate 5 and the rotating shaft 3.

In addition, an upper cover 30 may be fixed on the upper side of the fixing base 2 by means of a screw 301, and the upper cover 30 covers the first rotating plate 4, the second rotating plate 5, the elastic member 6, the first micro switch 8 and the first The two micro-switches 9 and the like are external to protect the components.

The gas switch of the present invention is elastically provided with a safety pin 15, and the upper end of the safety pin 15 protrudes out of the fixing seat 2 through the pin hole 25 of the fixing base 2, and then extends into the restricting portion 42 of the first rotating plate 4, so that The rotating shaft 3 cannot be rotated under normal conditions, and the function of the safety lock can be achieved. When the rotating shaft 3 is pressed, the second rotating plate 5 and the unlocking pin 52 are moved downward, the unlocking pin 52 pushes the safety pin 15 downward, and the safety pin 15 is pressed down to be lower than the first rotating plate 4 to make the safety pin. 15 is released from the restricting portion 42 of the first rotating plate 4, and the rotation restriction can be released, so that the rotating shaft 3 is driven to drive the closing (cock) 10 to turn on the gas passage. Since the restricting mechanism is located below, the rotating shaft 3 is required to be pressed down to the end to release the rotation limit, so that the safety valve 7 is completely opened, so that the safety valve 7 can be properly adsorbed, and the ignition failure can be effectively avoided. When the knob is rotated 30 to 40 degrees and then ignited, the safety ignition is confirmed, and the thermocouple can transmit the signal to continue the adsorption of the safety valve 7.

In addition, the bottom of the first rotating plate 4 may further be provided with a groove 44 (shown in FIG. 6) at a predetermined angle. The groove 44 is provided with a protrusion 45, and the upper end of the safety pin 15 can be matched with the groove. 44, and the upper end of the safety pin 15 can abut against the protrusion 45, so that when the rotating shaft 3 drives the first rotating plate 4 to rotate to a predetermined angle, a sound can be generated. For example, when the tempering point is rotated to 135 degrees (the outer ring fire switches the inner ring fire), a prompt sound can be generated.

[Second embodiment]

Referring to FIG. 7 , the present invention further provides a control method for a gas switch structure. The gas switch structure has a switch body 1 , a fixed seat 2 , a rotating shaft 3 , a first rotating plate 4 , and a second rotating plate 5 . (See Figure 1 to Figure 5), switch body 1 And one of the fixing bases 2 is elastically disposed with a safety pin 15 . The first rotating plate 4 and the second rotating plate 5 are disposed on the rotating shaft 3 , and the first rotating plate 4 is provided with a limiting portion 42 for the safety pin 15 The upper end can extend into the restricting portion 42 of the first rotating plate 4 for providing rotation limitation of the rotating shaft 3, the first rotating plate 4 and the second rotating plate 5, and the second rotating plate 5 is located above the first rotating plate 4, The two rotating plates 5 are provided with an unlocking pin 52 corresponding to the safety pin 15. The structure of the gas switch is the same as that of the above embodiment, and will not be described again. The control method of the gas switch structure of the present invention includes the following steps: First, When the gas furnace is in the closed state, when the gas furnace is to be turned on, the rotating shaft 3 is pressed down in the vertical direction to interlock the second rotating plate 5 and the unlocking pin 52 to move downward, so as to unlock the pin 52 and push the safety pin 15 upward. Moving downward, the safety pin 15 is disengaged from the restricting portion 42 of the first rotating plate 4 to release the rotation restriction, and a safety valve 7 is opened; then, the rotating shaft 3 is rotated, and the rotating shaft 3 drives a closing member 10 to rotate. Gas passes through and a second rotating plate 5 The micro switch touch portion 53 touches a first micro switch 8 to perform an ignition operation; when the ignition is successful, a thermocouple senses and transmits a signal to keep the safety valve 7 coil excitation open; and finally, when the gas furnace is to be turned off, the rotation The rotating shaft 3 is reset, and the rotating shaft 3 is reset in the vertical direction, so that the closing member 10 closes the gas, and the safety valve 7 is closed.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

1‧‧‧Switch body

14‧‧‧ openings

15‧‧‧Safety pin

16‧‧‧ accommodating slots

17‧‧‧Safety pin spring

2‧‧‧ Fixed seat

22‧‧‧Axis hole

25‧‧ ‧ pinhole

3‧‧‧Rotary axis

31‧‧‧The next section

4‧‧‧First rotating plate

41‧‧‧First positioning hole

42‧‧‧Restrictions

5‧‧‧Second rotating plate

51‧‧‧Second positioning hole

52‧‧‧Unlocking pin

54‧‧‧fasteners

6‧‧‧Flexible components

10‧‧‧ Closed

30‧‧‧Upper cover

301‧‧‧ screws

Claims (14)

A gas switch structure comprises: a switch body, the switch body has an air inlet and an air outlet, a gas flow channel is arranged between the air inlet and the air outlet; a fixing seat is disposed on the switch body The fixing base is provided with a shaft hole and a first fixing portion. The first fixing portion is fixed with a first micro switch for controlling ignition. One of the switch body and the fixing seat is elastically provided with a safety pin. a rotating shaft, the rotating shaft is disposed in the shaft hole of the fixing base, the rotating shaft is rotatably disposed on the fixing base, and the lower end of the rotating shaft penetrates into the switch body and is connected with a closing The first rotating plate is disposed on the rotating shaft, the first rotating plate is provided with a restricting portion, and a second rotating plate is disposed. The second rotating plate is disposed in the gas flow path. a plate is disposed on the rotating shaft, and the second rotating plate is located above the first rotating plate, the second rotating plate is provided with an unlocking pin, the unlocking pin corresponds to the safety pin, and the second rotating plate has a The first micro switch touches the part, Actuating the first micro switch; the upper end of the safety pin can extend into the restriction portion of the first rotating plate for providing the rotation axis, the first rotating plate and the second rotating plate rotation limit; When the shaft moves the second rotating plate and the unlocking pin to move downward, the safety pin can be pushed out of the restricting portion of the first rotating plate for releasing the rotation restriction; and an elastic member is abutted against the first The two rotating plates move up and reset. The gas switch structure of claim 1, wherein the switch body is provided with a receiving groove, the safety pin is vertically movable in the receiving groove, and a safety pin is disposed between the safety pin and the receiving groove. a spring that abuts the safety pin against the safety pin. The gas switch structure of claim 2, wherein the fixing seat is provided with a pin hole through which the upper end of the safety pin protrudes out of the fixing seat. The gas switch structure according to claim 1, wherein the switch body is provided with A safety valve having a top valve stem connected to the top valve stem by a lever. The gas switch structure of claim 1, wherein the fixing seat is provided with a second fixing portion, the second fixing portion is fixed with a second micro switch, and the first rotating plate has a second micro switch actuation portion for The second micro switch is activated. The gas switch structure of claim 1, wherein the switch body is provided with an opening, and the fixing seat is disposed at an opening of the switch body. The gas switch structure of claim 1, wherein the first rotating plate has a first positioning hole, and the first positioning hole of the first rotating plate is sleeved on the rotating shaft, so that the first rotating plate and the first rotating plate The rotating shaft can rotate synchronously, and a first sliding hole of the first rotating plate forms a sliding fit with the rotating shaft, so that the rotating shaft can move up and down in the first positioning hole. The gas switch structure of claim 1, wherein the second rotating plate has a second positioning hole, and the second positioning hole of the second rotating plate is sleeved on the rotating shaft, so that the second rotating plate is The rotary axis can rotate synchronously. The gas switch structure of claim 1, wherein the unlocking pin protrudes from a bottom of the second rotating plate. The gas switch structure of claim 1, wherein the bottom of the first rotating plate is provided with a groove, the groove is provided with a protrusion, the upper end of the safety pin is fitted in the groove, and the safety pin is The upper end is abutted against the protrusion for generating a prompt sound. A control method for a gas switch structure, the gas switch structure has a switch body, a fixed seat, a rotating shaft, a first rotating plate and a second rotating plate, and the switch body and the fixing seat are elastic a safety pin is disposed, the first rotating plate and the second rotating plate are disposed on the rotating shaft, the first rotating plate is provided with a limiting portion, and the upper end of the safety pin can extend into the limiting portion of the first rotating plate. The second rotating plate is located above the first rotating plate, and the second rotating plate is disposed above the first rotating plate, and the second rotating plate is provided with an unlocking pin, and the unlocking pin is configured to provide the rotating shaft, the first rotating plate and the second rotating plate. Corresponding to the safety pin, the control method includes the following steps: When the gas furnace is in a closed state, when the gas furnace is to be turned on, the rotating shaft is pressed in a vertical direction to interlock the second rotating plate and the unlocking pin to move downward, and the unlocking pin pushes the safety pin Moving downward to disengage the safety pin from the restricting portion of the first rotating plate to release the rotation limit and simultaneously opening a safety valve; rotating the rotating shaft to drive a closing rotation to open the gas passage, and The second rotating plate touches a first micro switch to perform an ignition operation; when the ignition is successful, a thermocouple senses and transmits a signal to keep the safety valve coil excitation open; and when the gas furnace is to be turned off, rotating the rotating shaft to reset And the rotating shaft is reset in the vertical direction, so that the closing member closes the gas, and the safety valve is closed. The control method of the gas switch structure according to claim 11, wherein the switch body has an air inlet and an air outlet, and a gas flow channel is disposed between the air inlet and the air outlet; the fixed seat is disposed on the switch body The first fixed portion fixes the first micro switch; the rotating shaft passes through the shaft hole of the fixed seat, so that the rotating shaft is rotatably disposed on a lower end of the rotating shaft penetrates into the switch body, the closed end is connected to the lower end of the rotating shaft, the closed portion is disposed in the gas flow channel, and the second rotating plate has a first micro motion a switch actuation portion for urging the first micro switch. The control method of the gas switch structure according to claim 11, wherein the gas switch structure has a resilient member that is moved up against the second rotating plate to be reset. The control method of the gas switch structure according to claim 11, wherein the switch body is provided with a receiving groove, the safety pin is vertically movable in the receiving groove, and the safety pin is disposed between the safety pin and the receiving groove. A safety pin spring that abuts the safety pin.