Switch ball valve and gas appliance

Abstract

The invention discloses a switch ball valve and a gas appliance. The switch ball valve comprises a valve body, wherein the valve body is provided with an air inlet channel, an ever-burning fire channel, a main fire channel and a main channel; the electromagnetic valve is connected to the thermocouple and used for opening or closing a channel opening, communicated with the main channel, of the air inlet channel; the pushing mechanism is used for applying pushing force to the electromagnetic valve under the action of external force so as to open or close the channel opening, or rotating under the action of external force so as to adjust the gas output of the main fire channel; the first sealing ring is arranged outside the pushing mechanism in a sleeving mode and abuts against the side wall of the main channel. When the pushing mechanism pushes the electromagnetic valve to open the channel opening, the ever-burning fire channel is in a gas outlet state, and the main fire channel is in a closed state. When the switch ball valve is opened, the ever-burning fire channel can be in a ventilation state all the time, so that the thermocouple can obtain continuous and stable heat, the closing stability of the electromagnetic valve is guaranteed, and the stability of follow-up ventilation of the channel opening to the main fire channel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a switch ball valve and a gas appliance. Background Art

[0002] In some devices that require gas combustion for heating, such as gas stoves, valve bodies are installed on these devices to control the switch of gas or the adjustment of the flow rate. In the initial stage, the valve body delivers gas through the downward pressure of the rotating shaft. The combustion of gas provides heat to the thermocouple, forming an electric potential difference, so that the electrical signal is transmitted to the solenoid valve, which makes the solenoid valve of the valve body close and open the air inlet.

[0003] In the prior art, since the valve body has only one air outlet, the air outlet will adjust the air outlet volume under the rotation of the shaft, resulting in unstable heat provided to the thermocouple, thus causing unstable attraction of the thermocouple and ultimately affecting the stability of the air supply. Summary of the invention

[0004] In order to solve at least one problem existing in the above-mentioned prior art, according to one aspect of the present invention, a switch ball valve is provided, comprising:

[0005] A valve body, wherein the valve body is provided with an air intake channel, a pilot fire channel, a main fire channel and a main channel, wherein the air intake channel, the pilot fire channel and the main fire channel are respectively connected to the main channel, and the pilot fire channel and the main fire channel are arranged on different sides of the valve body;

[0006] A solenoid valve connected to the thermocouple, the solenoid valve being disposed at one end of the main channel and used for opening or closing a channel opening connecting the intake channel and the main channel;

[0007] A push mechanism, movably mounted at the other end of the main channel, is used to apply a push force to the solenoid valve under the action of an external force to open or close the channel opening, or rotate under the action of an external force to adjust the gas output of the main fire channel;

[0008] At least two first sealing rings, wherein the first sealing rings are sleeved outside the pushing mechanism and abut against the side wall of the main channel;

[0009] Among them, when the pushing mechanism pushes the solenoid valve to open the channel opening, the long-fire channel is in a gas outlet state, and the main fire channel is in a closed state.

[0010] In some embodiments, the pushing mechanism includes:

[0011] A rotating shaft, the rotating shaft is rotatably arranged relative to the valve body and extends outside the valve body;

[0012] A valve core is arranged in the main channel, comprising a ball core and a shaft sleeve which are arranged integrally, wherein the ball core is used to adjust the air flow amount directed to the main fire channel, and the shaft sleeve is used to drive the ball core to rotate;

[0013] A push rod, which is inserted through the ball core and the shaft sleeve and is used to cooperate with the rotating shaft to apply a driving force to the solenoid valve;

[0014] The elastic member is sleeved outside the push rod and respectively abuts against the shaft sleeve and the rotating shaft to apply elastic force to the rotating shaft.

[0015] In some embodiments, the shaft sleeve includes a first section and a second section, the outer diameter of the second section is larger than the outer diameter of the first section, the first sealing ring is sleeved outside the second section, and a first receiving cavity for receiving the elastic member is provided on a side of the second section facing the rotating shaft;

[0016] The pushing mechanism also includes a second sealing ring, which is arranged in the second section and sleeved outside the push rod. A second receiving cavity is provided on the bottom wall of the first receiving cavity, and the second receiving cavity is used to install the second sealing ring.

[0017] In some embodiments, the push mechanism further includes a third sealing ring, which is sleeved outside the push rod and disposed inside the first section and abuts against an inner wall of the first section.

[0018] In some embodiments, the valve body includes a connecting seat and a first valve seat and a second valve seat that are separately arranged. One end of the first valve seat is used to install the solenoid valve and allow the ball core to rotate. The second valve seat is used for the rotation of the rotating shaft. The connecting seat is respectively abutted against the inner walls of the first valve seat and the second valve seat, and is rotatable with the second section.

[0019] In some embodiments, a supporting ring is provided at the end of the second section facing the first section, and the first sealing ring is clamped between the supporting ring and the connecting seat.

[0020] In some embodiments, the ball core is provided with a plurality of vents having different diameters, and the ball core is used to sequentially face the main fire channel under the rotation of the shaft to adjust the air outlet volume of the main fire channel.

[0021] In some embodiments, the core is provided with two vents, which are defined as a first vent and a second vent, and the diameter of the first vent is larger than the diameter of the second vent;

[0022] When the rotating shaft rotates by a first angle relative to the initial position, the main fire channel is connected to the first vent;

[0023] When the rotating shaft rotates by a second angle relative to the initial position, the main fire channel is connected to the second vent.

[0024] In some embodiments, the diameter of the long open fire channel ranges from 2.0 mm to 3.0 mm.

[0025] Another aspect of the present invention provides a gas appliance comprising the above-mentioned switch ball valve.

[0026] In summary, the switch ball valve and gas appliance provided by the present invention have the following technical effects:

[0027] The gas flows in through the air intake channel, and the pilot fire channel and the main fire channel are respectively used for outflowing the gas. Under the push of the pushing mechanism, the solenoid valve opens the channel opening of the air intake channel. At this time, the gas can enter the main channel through the air intake channel. At this time, the pilot fire channel is in a gas outlet state, and the main fire channel is in a closed state, so that the gas can flow out through the pilot fire channel to continue to burn on the cooker and provide heat to the thermocouple, so that the thermocouple can continuously and stably obtain heat, so that the solenoid valve pushed open by the pushing mechanism can be stably closed, to ensure that the channel opening can be in a stably open state, to ensure the stable gas supply state of the subsequent main fire channel, that is, to ensure a stable fire source. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional schematic diagram of a switch ball valve according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Another three-dimensional schematic diagram of the switch ball valve in FIG.

[0030] Figure 3 for Figure 1 Exploded diagram of the switch ball valve in FIG.

[0031] Figure 4 for Figure 1 Structural schematic diagram of the switch ball valve in FIG.

[0032] Figure 5 for Figure 4 Schematic diagram of the cross section along the AA direction;

[0033] Figure 6 for Figure 5 Schematic diagram of the structure of the valve body;

[0034] Figure 7 for Figure 5 A schematic diagram of the structure of the push mechanism and the connecting seat;

[0035] Figure 8 for Figure 7 A cross-sectional schematic diagram of the push mechanism and the connecting seat in FIG.

[0036] Fig. 9 for Figure 7 Schematic diagram of the valve core structure.

[0037] Attached pictures:

[0038] 100-switching ball valve, 10-valve body, 11-intake channel, 111-channel opening, 12-long-opening fire channel, 13-main fire channel, 14-main channel, 15-first valve seat, 151-first notch, 16-second valve seat, 161-second notch, 17-connecting seat, 171-first abutting sleeve, 172-second abutting sleeve, 20-solenoid valve, 30-pushing mechanism, 31-rotating shaft, 311-protrusion, 32-valve core, 321-ball core, 321 1-vent, 3211a-first vent, 3211b-second vent, 322-sleeve, 3221-groove, 3222-first section, 3223-second section, 3224-first receiving chamber, 3225-holding ring, 3226-second receiving chamber, 33-top rod, 331-clamping ring, 34-elastic member, 35-second sealing ring, 36-card, 37-third sealing ring, 40-first sealing ring, 50-micro switch, 60-paddle. DETAILED DESCRIPTION

[0039] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] See also Figures 1 to 9The switch ball valve 100 provided in the embodiment of the present invention includes a valve body 10, a solenoid valve 20, a push mechanism 30 and at least two first sealing rings 40.

[0044] Among them, see Figures 1 to 5 The valve body 10 is provided with an air intake channel 11, a pilot fire channel 12, a main fire channel 13 and a main channel 14. The air intake channel 11, the pilot fire channel 12 and the main fire channel 13 are respectively connected to the main channel 14. The pilot fire channel 12 and the main fire channel 13 are arranged on different sides of the valve body 10; the solenoid valve 20 is connected to the thermocouple, and the solenoid valve 20 is arranged at one end of the main channel 14, and is used to open or close the channel opening 111 connecting the air intake channel 11 and the main channel 14; the push mechanism 30 can be movably installed on The other end of the main channel 14 is used to apply a pushing force to the solenoid valve 20 under the action of an external force to open the channel opening 111, or rotate under the action of an external force to adjust the gas outlet of the main fire channel 13; at least two first sealing rings 40, the first sealing rings 40 are sleeved outside the pushing mechanism 30, and are against the side wall of the main channel 14; wherein, when the pushing mechanism 30 pushes the solenoid valve 20 to open the channel opening 111, the long-open fire channel 12 is in a gas outlet state, and the main fire channel 13 is in a closed state.

[0045] The above-mentioned switch ball valve 100 allows gas to flow into the air through the air intake channel 11, and the permanent fire channel 12 and the main fire channel 13 are respectively used for outflowing gas. Under the push of the pushing mechanism 30, the solenoid valve 20 opens the channel opening 111 of the air intake channel 11. At this time, the gas can enter the main channel 14 through the air intake channel 11. At this time, the permanent fire channel 12 is in a gas outlet state, and the main fire channel 13 is in a closed state, so that the gas can flow out through the permanent fire channel 12 to continue to burn on the stove and provide heat to the thermocouple, so that the thermocouple can continuously and stably obtain heat, so that the solenoid valve 20 pushed open by the pushing mechanism 30 can be stably closed, so as to ensure that the channel opening 111 can be in a stably open state, to ensure the subsequent stable gas supply state of the main fire channel 13, that is, to ensure a stable fire source.

[0046] It should be noted that since the pushing mechanism 30 needs to rotate relative to the inner wall of the valve body 10 and a seal is required between the two, a first sealing ring 40 needs to be provided between the pushing mechanism 30 and the valve body 10. Furthermore, by providing at least two sealing rings, the switch ball valve 100 of this embodiment can be suitable for use in a higher pressure environment, for example, under medium pressure conditions of 100kpa-200kpa, thereby avoiding the risk of air leakage.

[0047] Specifically, two first sealing rings 40 are provided in this embodiment, so as to ensure the sealing and at the same time ensure that the friction resistance of the pushing mechanism 30 when rotating relative to the valve body 10 is not too large.

[0048] See also Figure 3 , Figure 5 , Figure 7 as well as Figure 8 In one embodiment of the present invention, the push mechanism 30 includes a rotating shaft 31 , a valve core 32 , a push rod 33 and an elastic member 34 .

[0049] Specifically, the rotating shaft 31 is rotatably arranged relative to the valve body 10 and extends to the outside of the valve body 10, and is used to receive a driving force from the outside, for example, it is used to be installed with a knob and rotated under the drive of the user's hand; the valve core 32 is arranged in the main channel 14, including a ball core 321 and a shaft sleeve 322 that are integrally arranged, the ball core 321 is used to adjust the air flow volume guided to the main fire channel 13, and the shaft sleeve 322 is used to cooperate with the push rod 33 to drive the ball core 321 to rotate; the push rod 33 is inserted into the ball core 321 and the shaft sleeve 322, and is used to cooperate with the rotating shaft 31 to apply a driving force to the solenoid valve 20; the elastic member 34 is arranged in the main channel 14, and is sleeved outside the push rod 33, and is respectively connected with the shaft sleeve 322 and the rotating shaft 31 is held against each other to apply elastic force to the rotating shaft 31. In this way, when the switch ball valve 100 is in use, the rotating shaft 31 is pressed, and the rotating shaft 31 applies pressing force to the push rod 33. The push rod 33 slides relative to the shaft sleeve 322, and the push rod 33 pushes open the solenoid valve 20. At this time, the channel opening 111 of the air intake channel 11 is in an open state, and the rotating shaft 31 compresses the elastic member 34. Since the ball core 321 and the shaft sleeve 322 of the present embodiment are integrally arranged, when they rotate under the drive of the rotating shaft 31, the concentricity of the two is higher, and the accuracy of the rotation driven by the rotating shaft 31 will be higher, that is, the ball core 321 can more accurately adjust the air intake of the main fire channel 13, so as to accurately adjust the fire size of the burner.

[0050] Among them, see Figure 3 and Figure 7 When the rotating shaft 31 is pressed and matched with the sleeve 322, a protrusion 311 is provided on the rotating shaft 31, and a groove 3221 is provided on the sleeve 322. When the rotating shaft 31 is pressed by an external force, the protrusion 311 is inserted into the groove 3221 and compresses the elastic member 34, so that the rotating shaft 31 can drive the sleeve 322 and the ball core 321 to rotate.

[0051] The switch ball valve 100 of this embodiment can be used under medium pressure conditions, for example, it can be used under 100kpa-200kpa pressure conditions while maintaining sealing performance. The shaft sleeve 322 includes a first section 3222 and a second section 3223. The outer diameter of the second section 3223 is larger than the outer diameter of the first section 3222. The first sealing ring 40 is sleeved outside the second section 3223. The second section 3223 is provided with a first receiving cavity 3224 for receiving the elastic member 34 on one side facing the rotating shaft 31. The push mechanism 30 It also includes a second sealing ring 35, which is arranged in the second section 3223 and sleeved on the outside of the push rod 33. A second receiving chamber 3226 is provided on the bottom wall of the first receiving chamber 3224. The second receiving chamber 3226 is used to install the second sealing ring 35. By increasing the setting of the second sealing ring 35 and cooperating with the first sealing ring 40, the sealing performance of the push rod 33 is further increased when it moves relative to the sleeve 322, so that the switch ball valve 100 of this embodiment can adapt to gas with a higher pressure.

[0052] Among them, see Figure 3 and Figure 5 The elastic member 34 needs to be supported between the rotating shaft 31 and the bottom wall of the first receiving chamber 3224. Since the second sealing ring 35 can be exposed from the bottom wall of the first receiving chamber 3224, the second sealing ring 35 has a certain flexibility. In order to ensure that the elastic member 34 can have an elastic effect, the pushing mechanism 30 also includes a card 36. The card 36 is sleeved on the push rod 33 and is supported by one end of the elastic member 34.

[0053] Also, see Figure 3 and Figure 5 On the basis of setting the second sealing ring 35, the pushing mechanism 30 of this embodiment also includes a third sealing ring 37. The third sealing ring 37 is arranged in the first section 3222, sleeved on the outside of the push rod 33, and abutted against the inner wall of the first section 3222. Since the push rod 33 will also slide relative to the first section 3222, the third sealing ring 37 is provided to cooperate with the second sealing ring 35 to ensure the sealing effect between the push rod 33 and the entire sleeve 322; further, the third sealing ring 37 and the second sealing ring 35 cooperate with the multiple first sealing rings 40 to increase the sealing between the entire pushing mechanism 30 and the valve body 10, so that the entire switch ball valve 100 can be suitable for the use of gas with a higher gas pressure.

[0054] When the third sealing ring 37 is set, in order to ensure the stability of the setting position of the third sealing ring 37, two spaced clamping rings 331 are provided on the top rod 33, and there is a gap between the two clamping rings 331, and the third sealing ring 37 is clamped in the gap, so as to achieve the installation of the third sealing ring 37. In other embodiments, a clamping groove can also be opened on the top rod 33, and the third sealing ring 37 can be clamped in the clamping groove, so as to achieve the installation of the third sealing ring 37.

[0055] See also Figure 3 , Figure 5 as well as Figure 6 In one embodiment of the present invention, in order to facilitate the installation of the push mechanism 30 in the valve body 10, the valve body 10 includes a connecting seat 17 and a first valve seat 15 and a second valve seat 16 which are separately arranged. One end of the first valve seat 15 is used to install the solenoid valve 20 and to provide the ball core 321 for rotation. The second valve seat 16 is used for the rotation of the rotating shaft 31. The connecting seat 17 is respectively in contact with the inner walls of the first valve seat 15 and the second valve seat 16, and is rotatably arranged with the second section 3223. In this way, by setting the valve body 10 as the separated first valve seat 15 and the second valve seat 16, The push rod 33, the shaft sleeve 322 and the elastic member 34 are installed in the valve body 10, that is, the push rod 33, the shaft sleeve 322 and the elastic member 34 can be assembled as a whole, and then the whole is inserted from the open end of the first valve seat 15, and then installed with the connecting seat 17 and the second valve seat 16 respectively; by setting the connecting seat 17, the connection between the first valve seat 15 and the second valve seat 16 can be sealed, and at the same time, the connecting seat 17 can be abutted against the first sealing ring 40 to clamp the first sealing ring 40 between the second section 3223 and the connecting seat 17.

[0056] For further information, see Figure 7 and Figure 8 The second section 3223 is provided with a holding ring 3225 at the end facing the first section 3222, and the first sealing ring 40 is clamped between the holding ring 3225 and the connecting seat 17, so as to achieve the position limitation of the first sealing ring 40, that is, the connecting seat 17 not only achieves the connection between the first valve seat 15 and the second valve seat 16 for sealing, but also facilitates the installation of the first sealing ring 40, thereby facilitating the assembly of the entire ball valve. In other embodiments, a bayonet may be provided on the outer wall of the second section 3223, and the first sealing ring 40 and the connecting seat 17 may be clamped in the bayonet, so as to achieve the effect of limiting the installation of the first sealing ring 40.

[0057] In addition, after the first valve seat 15 , the second valve seat 16 and the connecting seat 17 are installed, the first valve seat 15 and the second valve seat 16 are further connected by bolts.

[0058] For further information, see Figure 6 , in order to facilitate the installation of the connecting seat 17, the connecting seat 17 includes a first supporting sleeve 171 and a second supporting sleeve 172 along the axial direction of the rotating shaft 31, and the second supporting sleeve 172 is arranged toward the rotating shaft 31, and the outer diameter of the second supporting sleeve 172 is larger than the outer diameter of the first supporting sleeve 171, and the outer wall of the first supporting sleeve 171 is abutted against the inner wall of the first valve seat 15, and the first valve seat 15 and the second valve seat 16 are respectively provided with a first notch 151 and a second notch 161, and the second supporting sleeve 172 is clamped in the first notch 151 and the second notch 161. In this way, the first section 3222 with a smaller outer diameter is provided, which can cooperate with the inner wall of the first valve seat 15 and limit the installation of the first sealing ring 40. By providing the first notch 151 and the second notch 161 on the first valve seat 15 and the second valve seat 16, respectively, the installation of the second supporting sleeve 172 can be limited, so that the installation position of the entire connecting seat 17 is limited.

[0059] See also Fig. 9 In one embodiment of the present invention, in order to adjust the gas flow of the main fire channel 13, a plurality of air vents 3211 are provided on the ball core 321, and the vents 3211 have different diameters and are used to face the main fire channel 13 in sequence under the rotation of the shaft 31 to adjust the gas output of the main fire channel 13. In this way, by setting air vents of different apertures to face the main fire channel 13 respectively, the adjustment of different fire powers of the gas can be achieved.

[0060] Specifically, two air vents 3211 are provided on the ball core 321 of the present embodiment, and the two air vents 3211 are defined as a first air vent 3211a and a second air vent 3211b, and the aperture of the first air vent 3211a is larger than the aperture of the second air vent 3211b; when the rotating shaft 31 rotates a first angle relative to the initial position, the main fire channel 13 is connected to the first air vent 3211a; when the rotating shaft 31 rotates a second angle relative to the initial position, the main fire channel 13 is connected to the second air vent 3211b, that is, when the rotating shaft 31 drives the ball core 321 to rotate a first angle relative to the initial position, the gas flow rate flowing out of the main fire channel 13 is large, and the gas appliance burns with a high fire; when the rotating shaft 31 drives the ball core 321 to rotate a second angle relative to the initial position, the gas flow rate flowing out of the main fire channel 13 is small, and the gas appliance burns with a low fire, so that this setting method adapts to the user's usage habits, and a high fire is first used for cooking after the rotating shaft 31 is rotated.

[0061] Specifically, the first angle is set to 90 degrees, and the second angle is set to 150 degrees. In other embodiments, other rotation angles may also be set, for example, the first angle is 60 degrees, the second angle is 120 degrees, etc., which are not limited here.

[0062] See also Figure 5In one embodiment of the present invention, when the push rod 33 pushes the solenoid valve 20 open, the channel opening 111 and the ever-opening fire channel 12 are always in a connected state, and the caliber range of the ever-opening fire channel 12 is 2.0mm-3.0mm. In this way, the gas flow rate is not too small, resulting in insufficient gas outflow and failure to provide sufficient heat to the thermocouple, and the risk of gas waste caused by excessive gas flow rate is avoided.

[0063] The switch ball valve 100 of this embodiment further includes a micro switch 50 , and a paddle 60 is sleeved on the rotating shaft 31 . When the rotating shaft 31 is pressed, the paddle 60 is driven to move toward the micro switch 50 , thereby achieving ignition.

[0064] In the above-mentioned switch ball valve 100, a second sealing ring 35 is arranged in the sleeve 322, which cooperates with the first sealing ring 40, further increasing the sealing performance of the push rod 33 when it moves relative to the sleeve 322, so that the switch ball valve 100 of this embodiment can adapt to gas with a higher pressure; the valve body 10 is arranged to include a connecting seat 17 and a first valve seat 15 and a second valve seat 16 arranged separately, so as to facilitate the installation of the push rod 33, the sleeve 322 and the elastic member 34 in the valve body 10, that is, the push rod 33, the sleeve 322 and the elastic member 34 can be assembled as a whole, and then the whole can be inserted from the open end of the first valve seat 15, and then installed with the connecting seat 17 and the second valve seat 16 respectively. By setting the connecting seat 17, the connection between the first valve seat 15 and the second valve seat 16 can be sealed; the connecting seat 17 is arranged along the axial direction of the rotating shaft 31 The direction includes a first supporting sleeve 171 and a second supporting sleeve 172. The first valve seat 15 and the second valve seat 16 are respectively provided with a first notch 151 and a second notch 161. The second supporting sleeve 172 is clamped in the first notch 151 and the second notch 161, and can limit the installation of the second supporting sleeve 172, so that the installation position of the entire connecting seat 17 is limited; when the gas flow of the main fire channel 13 is adjusted, a plurality of air vents 3211 are provided on the ball core 321, and the calibers of the air vents 3211 are different to adjust the gas outlet size of the main fire channel 13; the caliber range of the long open fire channel 12 is 2.0mm-3.0mm, so that the gas flow is not too small, resulting in insufficient gas outflow and unable to provide sufficient heat to the thermocouple, and also avoiding the risk of excessive gas flow and gas waste.

[0065] In another embodiment, the present invention further provides a gas appliance, comprising the above-mentioned switch ball valve.

[0066] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A switch ball valve (100), characterized in that: include: A valve body (10), wherein the valve body (10) is provided with an air intake channel (11), a permanent fire channel (12), a main fire channel (13) and a main channel (14); the air intake channel (11), the permanent fire channel (12) and the main fire channel (13) are respectively connected to the main channel (14); the permanent fire channel (12) and the main fire channel (13) are arranged on different sides of the valve body (10); an electromagnetic valve (20) connected to the thermocouple, the electromagnetic valve (20) being disposed at one end of the main channel (14) and being used to open or close a channel opening (111) connecting the air intake channel (11) and the main channel (14); A push mechanism (30) is movably mounted on the other end of the main channel (14) and is used to apply a push force to the solenoid valve (20) under the action of an external force to open or close the channel opening (111), or to rotate under the action of an external force to adjust the gas output of the main fire channel (13); At least two first sealing rings (40), wherein the first sealing rings (40) are sleeved outside the pushing mechanism (30) and abut against the side wall of the main channel (14); When the pushing mechanism (30) pushes the solenoid valve (20) to open the channel opening (111), the permanent fire channel (12) is in a gas outlet state, and the main fire channel (13) is in a closed state.

2. The on-off ball valve (100) according to claim 1, characterized in that: The pushing mechanism (30) comprises: a rotating shaft (31), the rotating shaft (31) being rotatably arranged relative to the valve body (10) and extending outside the valve body (10); The valve core (32) is arranged in the main channel (14), and comprises a ball core (321) and a shaft sleeve (322) which are arranged integrally, wherein the ball core (321) is used to adjust the air flow amount directed to the main fire channel (13), and the shaft sleeve (322) is used to drive the ball core (321) to rotate; A push rod (33) is inserted through the ball core (321) and the shaft sleeve (322) and is used to cooperate with the rotating shaft (31) to apply a driving force to the solenoid valve (20); The elastic member (34) is sleeved outside the push rod (33) and is respectively abutted against the shaft sleeve (322) and the rotating shaft (31) to apply elastic force to the rotating shaft (31).

3. The on-off ball valve (100) according to claim 2, characterized in that: The shaft sleeve (322) comprises a first section (3222) and a second section (3223); the outer diameter of the second section (3223) is larger than the outer diameter of the first section (3222); the first sealing ring (40) is sleeved outside the second section (3223); and a first receiving cavity (3224) for receiving the elastic member (34) is provided on a side of the second section (3223) facing the rotating shaft (31); The pushing mechanism (30) further comprises a second sealing ring (35), wherein the second sealing ring (35) is arranged in the second section (3223) and sleeved outside the push rod (33); a second receiving cavity (3226) is arranged on the bottom wall of the first receiving cavity (3224), and the second receiving cavity (3226) is used for installing the second sealing ring (35).

4. The on-off ball valve (100) according to claim 3, characterized in that: The pushing mechanism (30) further comprises a third sealing ring (37), wherein the third sealing ring (37) is sleeved outside the pushing rod (33), is arranged inside the first section (3222), and abuts against the inner wall of the first section (3222).

5. The on-off ball valve (100) according to any one of claims 2 or 3, characterized in that: The valve body (10) includes a connecting seat (17) and a first valve seat (15) and a second valve seat (16) which are separately arranged. One end of the first valve seat (15) is used to install the solenoid valve (20) and allow the ball core (321) to rotate. The second valve seat (16) is used to allow the rotating shaft (31) to rotate. The connecting seat (17) is respectively in contact with the inner walls of the first valve seat (15) and the second valve seat (16), and is rotatable with the second section (3223).

6. The on-off ball valve (100) according to claim 5, characterized in that: The second section (3223) is provided with a supporting ring (3225) at the end portion facing the first section (3222), and the first sealing ring (40) is clamped between the supporting ring (3225) and the connecting seat (17).

7. The on-off ball valve (100) according to any one of claims 2 to 4, characterized in that: The ball core (321) is provided with a plurality of vents (3211), the vents (3211) having different diameters. The ball core (321) is used to sequentially face the main fire channel (13) under the rotation of the rotating shaft (31) to adjust the air outlet volume of the main fire channel (13).

8. The on-off ball valve (100) according to claim 7, characterized in that: The core (321) is provided with two vents (3211), which are defined as a first vent (3211a) and a second vent (3211b), and the diameter of the first vent (3211a) is larger than the diameter of the second vent (3211b); When the rotating shaft (31) rotates to a first angle relative to the initial position, the main fire channel (13) is connected to the first vent (3211a); When the rotating shaft (31) rotates to a second angle relative to the initial position, the main fire channel (13) is connected to the second vent (3211b).

9. The on-off ball valve (100) according to any one of claims 1 to 4, characterized in that: The caliber of the long open fire channel (12) ranges from 2.0 mm to 3.0 mm.

10. A gas appliance, characterized in that: It comprises the switching ball valve (100) as claimed in any one of claims 1 to 9.

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