CN211474884U

CN211474884U - Governing valve and gas equipment

Info

Publication number: CN211474884U
Application number: CN201922144835.5U
Authority: CN
Inventors: 郭正柔; 廖东升; 谢俊锋
Original assignee: Zhuhai Unicook Technology Co Ltd
Current assignee: Zhuhai Unicook Technology Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-11
Anticipated expiration: 2029-12-02

Abstract

The utility model provides a governing valve and gas equipment. The governing valve includes: the valve body is provided with an air inlet valve port and an air outlet valve port which are communicated with the valve cavity; the valve core is movably arranged in the valve cavity, an overflowing valve port is formed between the valve core and the inner wall of the valve cavity, and the overflowing valve port gradually changes when the valve core translates. The utility model provides an among the prior art governing valve can not realize the problem of continuous adjustment.

Description

Governing valve and gas equipment

Technical Field

The utility model relates to a kitchen utensils and appliances equipment field particularly, relates to a governing valve and gas equipment.

Background

At present, the existing regulating valve often does not have the function of continuous regulation, such as the regulating valve in a gas system. The fire adjustment of the gas system depends on the mixing ratio of gas and air, in the prior art, the gas system generally adjusts the flow of the gas through an adjusting valve, and the adjusting mode is that gas outlets with different sizes are arranged, and the gas outlets correspond to gas outlets with different apertures to realize the adjustment of the gas flow. The adjusting mode cannot realize continuous adjustment and is difficult to adapt to the requirement of intelligent cooking, and in addition, the gas in the adjusting process has the state of sudden stop and sudden start, so certain potential safety hazard exists.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a regulating valve and a gas combustion apparatus, which can improve the problem that the regulating valve cannot realize continuous regulation in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a regulator valve including: the valve body is provided with an air inlet valve port and an air outlet valve port which are communicated with the valve cavity; the valve core is movably arranged in the valve cavity, an overflowing valve port is formed between the valve core and the valve cavity, and the overflowing valve port gradually changes when the valve core translates.

Furthermore, the valve cavity is provided with a first matching part, the valve core is provided with a second matching part, an overflowing valve port is formed between the first matching part and the second matching part, and when the valve core moves, the size of the overflowing valve port and the movement distance of the valve core are changed linearly.

Further, the shape of the valve port of the overflowing valve port comprises at least two variable edges, and the at least two variable edges are parallel to each other.

Furthermore, the translation distance of the valve core and the change size of the valve port area of the overflowing valve port are in a linear relation.

Furthermore, the second matching part is an adjusting block which is arranged on the peripheral surface of the valve core; the first matching part is an overflowing groove which is arranged on the inner wall of the valve cavity and matched with the adjusting block, the overflowing groove extends along the motion direction of the valve core, and the adjusting block translates in the overflowing groove to form an overflowing valve port.

Furthermore, the overflowing surface of the adjusting block, which is close to one side of the inner wall of the valve cavity, is obliquely arranged relative to the axis of the valve core, and the overflowing surface obliquely extends towards the inner wall close to the valve cavity along the direction far away from the air inlet valve port.

Further, the adjusting block is in clearance fit with the side wall of the overflow groove.

Further, the valve body includes: a valve body having an intake valve port and an exhaust valve port; the support ring is arranged in the valve body, the overflowing valve port is formed between the support ring and the valve core, and the support ring is provided with an overflowing groove.

Further, the opening cross section of the air inlet valve port is larger than the maximum flow cross section of the overflowing valve port.

Furthermore, the valve cavity is provided with a sealing ring at the position of the air inlet valve port, the position of the valve core facing the sealing ring is of a conical structure, and the conical structure can be attached to the sealing ring to block the air inlet valve port.

Further, the regulating valve also comprises a driving device, the driving device comprising: the outer peripheral surface of the valve core is provided with a rack, the rack is meshed with the gear shaft, and the rack is arranged along the moving direction of the valve core; and the driving motor drives the gear shaft to rotate.

Furthermore, one end of the gear shaft extends outwards from the inside of the valve body and is connected with an angle sensor, and the other end of the gear shaft is connected with a driving motor.

According to the utility model discloses an on the other hand provides a gas equipment, including above governing valve. The gas equipment also comprises a control unit, the control unit is connected with the regulating valve, and the control unit can control the valve core of the regulating valve to move horizontally, so that the overflowing valve port of the regulating valve reaches a preset size, and the gas equipment provides a preset flow.

Further, the gas appliance further comprises: the detection unit is electrically connected with the control unit and is used for detecting the position information of the valve core and feeding back a detection result to the control unit; the control unit can control the alarm unit to feed back the action of the valve core in at least one form of voice broadcast, vibration and light indication; and/or the state indicating unit is electrically connected with the control unit, and the control unit can control the state indicating unit to feed back the cooking state in at least one form of voice broadcasting, vibration and light indication; and the communication assembly is electrically connected with the control unit, the communication assembly is used for receiving a control command of external equipment and transmitting the control command to the control unit, and the control unit can control the action of the valve core according to the control command.

Use the technical scheme of the utility model, have on the valve body with the valve pocket intercommunication admit air valve port and exhaust valve port, the movably setting of case in the valve pocket, the case with be formed with between the inner wall of valve pocket and overflow the valve port, during the case translation, overflow the valve port and change gradually. Through setting up the valve port that overflows, and will overflow the aperture of valve port and the motion of case on being related to along with the motion of case, make the aperture of overflowing the valve port have the adjustability, also can adjust the size of the flow through the governing valve, realized governing valve continuous regulation, ensured user's safety.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a regulating valve according to an alternative embodiment of the invention; and

FIG. 2 shows the internal schematic of FIG. 1 with the excess flow valve port closed;

FIG. 3 shows the internal schematic of FIG. 1 with the excess flow valve port open;

FIG. 4 shows a perspective view of the valve cartridge of FIG. 2;

FIG. 5 shows a perspective view of the support ring of FIG. 2;

wherein the figures include the following reference numerals:

10. a valve body; 11. a valve cavity; 12. an air inlet valve port; 13. an exhaust valve port; 14. an overflow valve port; 15. a support ring; 151. a flow through groove; 20. a valve core; 21. an adjusting block; 211. an overflow surface; 22. a rack; 23. a tapered structure; 30. a drive device; 31. a gear shaft; 32. a drive motor; 40. an outlet fitting; 50. and (4) a sealing ring.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the governing valve can not realize continuous adjustment among the prior art, the utility model provides a governing valve and gas equipment, it is concrete, gas equipment includes following governing valve.

Example one

As shown in fig. 1 to 5, the regulator valve includes a valve body 10 and a valve spool, the valve body 10 having an intake valve port 12 and an exhaust valve port 13 communicating with a valve chamber 11. The valve core 20 is movably arranged in the valve cavity 11, a flow-passing valve port 14 is formed between the valve core 20 and the inner wall of the valve cavity 11, and the flow-passing valve port 14 gradually changes when the valve core 20 translates. In this embodiment, the spill valve port 14 is gradually enlarged when the valve spool 20 is translated in a direction away from the intake valve port 12.

In this embodiment, the valve body 10 has an intake valve port 12 and an exhaust valve port 13 communicated with the valve cavity 11, the valve core 20 is movably disposed in the valve cavity 11, so that a flow-passing valve port 14 is formed between the valve core 20 and the inner wall of the valve cavity 11, and when the valve core 20 is translated in a direction away from the intake valve port 12, the flow-passing valve port 14 is gradually increased. Through setting up the overflow valve port 14, and with the motion of overflow valve port 14 on being correlated with the motion of case 20 to along with the motion of case 20, make the aperture of overflow valve port 14 have the adjustability, also can adjust the size of the flow through the governing valve, realized the governing valve continuous regulation, ensured user's safety.

As shown in fig. 2 and 3, in the present embodiment, the spill valve port 14 is disposed between the intake valve port 12 and the exhaust valve port 13, and when the valve body 20 is translated in a direction away from the intake valve port 12, the spill valve port 14 is gradually enlarged. In fig. 2, the valve element 20 is in the initial position, in which the valve element 20 blocks the inlet valve port 12 and the overflow valve port 14. The overflow valve port 14 is arranged between the intake valve port 12 and the exhaust valve port 13, so that the valve core 20 can conveniently adjust the opening degree of the overflow valve port 14. When the valve core 20 is located at the initial position, the inlet valve port 12 and the overflow valve port 14 are blocked, so that the double blocking effect is achieved, and the safety guarantee can be further improved.

As shown in fig. 2 and 3, the intake valve port 12 is smaller in size than the exhaust valve port 13. Therefore, the gas passing through the inlet valve port 12 can smoothly flow out through the overflow valve port 14 and the exhaust valve port 13, and the exhaust valve port 13 can not throttle the gas passing through the overflow valve port 14, so that the gas passing through the overflow valve port 14 can be ensured to fully flow out directly after passing through the exhaust valve port 13.

As shown in fig. 2 and 3, the valve chamber 11 has a first mating portion, the valve core 20 has a second mating portion, a flow-through valve port 14 is formed between the first mating portion and the second mating portion, and when the valve core 20 moves, the size of the flow-through valve port 14 and the movement distance of the valve core 20 linearly change. In the moving process of the valve core 20, the second matching portion can be driven to move, so that the second matching portion is staggered by a certain distance relative to the first matching portion, thereby playing a role in adjusting the flow-through valve port 14. The size of the overflow valve port 14 and the movement distance of the valve core 20 are changed linearly to realize continuous adjustment. In addition, the size of the overflowing valve port 14 can be accurately controlled through the movement distance of the valve core 20, and the adjustment accuracy is improved.

As shown in fig. 2 and 3, the shape of the flow-through valve port 14 includes at least two modified sides, and the at least two modified sides are parallel to each other. In this embodiment, one of the two changing sides is located at the first matching portion of the valve cavity 11, and the other is located at the second matching portion of the valve core 20. When the valve core 20 translates in the valve cavity 11, the second matching portion moves relative to the first matching portion, and the two changing edges move relative to each other, so that the change of the flow-passing valve port 14 can be controlled. The two changing edges are parallel to each other, so that the flow valve port 14 can be ensured to be continuously changed.

As shown in fig. 2 and 3, the translational distance of the valve element 20 is linearly related to the change of the valve port area of the excess flow valve port 14. When the valve core 20 is translated in the valve cavity 11, the valve port area change of the flow valve port 14 is in a linear relation. The flow through the spill valve port 14 is linearly related to the translational distance of the valve spool 20, and controlling the translational distance of the valve spool 20 controls the flow through the spill valve port 14.

As shown in fig. 2 to 4, the second engagement portion is an adjustment block 21, and the adjustment block 21 is provided on the outer peripheral surface of the spool 20. The first matching portion is a flow passing groove 151 which is arranged on the inner wall of the valve cavity 11 and matched with the adjusting block 21, the flow passing groove 151 extends along the movement direction of the valve core 20, and the adjusting block 21 is translated in the flow passing groove 151 to form the flow passing valve port 14. The adjusting block 21 moves in the overflowing groove 151, so that the overflowing valve port 14 can be adjusted, the overflowing groove 151 can guide the movement of the adjusting block 21, the valve core 20 is prevented from rotating in the valve cavity 11, and the adjusting stability is improved.

As shown in fig. 2, the flow-passing surface 211 of the adjusting block 21 on the side close to the inner wall of the valve chamber 11 is inclined with respect to the axis of the valve spool 20, and the flow-passing surface 211 extends obliquely toward the inner wall of the valve chamber 11 in the direction away from the intake valve port 12. When the valve core 20 moves, the inclined overflowing surface 211 can make the distance between the overflowing surface 211 and the groove bottom of the overflowing groove 151 continuously and linearly change, so that the size of the overflowing valve port 14 and the moving distance of the valve core 20 linearly change. The transfer surface 211 extends obliquely towards the inner wall of the valve chamber 11 in a direction away from the inlet valve port 12, so that the transfer valve port 14 gradually increases when the valve core 20 translates in a direction away from the inlet valve port 12.

Optionally, the adjusting block 21 is in clearance fit with the side wall of the overflowing groove 151. Because the adjusting block 21 needs to move relatively to the flow through groove 151, the clearance fit can reduce the friction force between the two, and the service life is prolonged. Meanwhile, the faults caused by blocking can be greatly reduced, and the problems of regulation failure and the like are avoided.

As shown in fig. 2 to 5, the valve body 10 includes a valve body having an intake valve port 12 and an exhaust valve port 13, and a support ring 15. The support ring 15 is provided in the valve body, the spill valve port 14 is formed between the support ring 15 and the spool 20, and the support ring 15 has the above-described spill groove 151. The change in the opening degree of the excess flow valve port 14 affects the quality of the entire regulator valve, so that the valve body 10 needs to have high wear resistance and strict form and position tolerance at the position of the excess flow valve port 14. The support ring 15 is arranged and made of a material with high wear resistance, and the processing is more convenient.

Optionally, the opening cross section of the inlet valve port 12 is larger than the maximum flow cross section of the through-flow valve port 14. The flow rate of the overflowing valve port 14 can be accurately controlled.

In the embodiment shown in fig. 2 and 3, the valve cavity 11 is provided with a sealing ring 50 at the position of the intake valve port 12, the position of the valve core 20 facing the sealing ring 50 is a conical structure 23, and the conical structure 23 can be attached to the sealing ring 50 to close the intake valve port 12. Set up sealing ring 50 and can play better sealed effect, laminating sealing ring 50 that toper structure 23 can be better plays better sealed effect.

In the embodiment shown in fig. 2 and 3, the valve body 10 has an outlet connection 40. An outlet fitting 40 is provided to facilitate connection to a pipeline. In fig. 2, the exhaust valve port 13 is located on the side of the outlet connection facing the valve chamber 11. Specifically, the opening area of the exhaust valve port 13 gradually decreases in a direction away from the valve chamber 11.

In fig. 2 and 3, the inner surface of the valve body has a plurality of stages in the axial direction thereof, and the support ring 15 is seated on one of the stages and pressed by the outlet joint 40 to be fixed.

Specifically, the joint of the outlet joint 40 and the valve body is further provided with a sealing ring to prevent the fuel gas from overflowing from the joint of the outlet joint and the valve body.

As shown in fig. 1 to 3, the regulating valve further includes a driving device 30, the driving device 30 drives the valve core 20 to move in the valve cavity 11, the driving device 30 includes a gear shaft 31 and a driving motor 32, a rack 22 is formed on an outer peripheral surface of the valve core 20, the rack 22 is meshed with the gear shaft 31, and the rack 22 is formed along a moving direction of the valve core 20. The drive motor 32 drives the gear shaft 31 to rotate. The driving device 30 is arranged to facilitate the use and adjustment of the adjusting valve by a user, and the gear shaft 31 and the rack 22 arranged on the valve core 20 are adopted for meshing transmission, so that the transmission efficiency and the transmission accuracy are improved.

In this embodiment, one end of the gear shaft 31 extends out from the valve body 10 and is connected to an angle sensor (not shown), and the other end of the gear shaft 31 is connected to the driving motor 32. The angle sensor can feed back the rotating angle of the gear shaft 31, so that the moving distance of the valve core 20 and the opening degree of the overflowing valve port 14 are indirectly reflected, and the use of a user is facilitated.

The gas appliance in this embodiment further includes a control unit (not shown in the figure), the control unit is connected to the regulating valve, and the control unit can control the valve core 20 to move horizontally, so that the flow-through valve port 14 reaches a preset size, and the gas appliance provides a preset flow. The addition of the control unit can control the translation of the valve core 20 more stably, so as to control the opening degree of the overflow valve port 14 more accurately. The regulating valves with various models and sizes can be provided to meet the use requirements of different models of gas equipment. Therefore, the preset size can be adaptively matched and set according to the type of the gas equipment, and when the overflow valve port 14 reaches the preset size, the control unit can enable the gas equipment to provide the preset flow, so that the control accuracy is further enhanced.

The gas appliance in this embodiment further includes a detection unit (not shown in the figure), the detection unit is electrically connected to the control unit, and the detection unit is configured to detect the position information of the valve element 20 and feed back the detection result to the control unit. The position information of the valve core 20 can be acquired through the detection unit, and the regulating valve can be overhauled in advance without dismounting the regulating valve through acquiring the position information of the valve core 20. Secondly, the position information of the valve core is collected and fed back to the control unit, and the control unit controls the driving device 30 to act so as to realize the position adjustment of the valve core 20.

The gas equipment in this embodiment further includes an alarm unit, the alarm unit is electrically connected with the control unit, and the control unit can control the alarm unit to feed back the action of the valve core 20 in at least one of voice broadcast, vibration and light indication. Because the gas is flammable and explosive gas and is dangerous, the conditions of the gas equipment and the regulating valve need to be monitored in real time in the using process, the faults of the regulating valve and the gas equipment are avoided, and the dangerous conditions such as gas leakage and the like are avoided. Through setting up alarm unit, this kind of risk of can greatly reduced reminds the user in time to pay close attention to the dangerous condition, avoids unnecessary loss of property.

The gas equipment in this embodiment still includes the state indicating unit, and the state indicating unit is connected with the control unit electricity, and the control unit can control at least one form feedback culinary art state in state indicating unit with voice broadcast, vibrations, light instruction. Through the state indicating unit, the user or maintenance person can audio-visually know the working conditions of the regulating valve and the gas equipment, so that the intelligence and the use convenience of the gas equipment are greatly improved, the visual effect is achieved, and the gas equipment is convenient for old people or teenagers to use.

The gas equipment in this embodiment further includes a communication assembly, the communication assembly is electrically connected with the control unit, the communication assembly is used for receiving a control command of an external device and transmitting the control command to the control unit, and the control unit can control the action of the valve element 20 according to the control command. Through setting up the communication subassembly, it is more convenient that the user gets up to make, has improved human-computer interaction's convenience.

Of course, the detection unit, the alarm unit, the status indication unit and the communication module are not necessarily provided at the same time. The service conditions of the detection unit, the alarm unit, the state indicating unit and the communication assembly can be adjusted according to specific service requirements, so that gas equipment with multiple functions and combinations is formed, and the service requirements of different users are met.

Example two

The difference from the first embodiment is that the arrangement relationship of the intake valve port and the exhaust valve port is different from that of the first embodiment.

Specifically, the positions of the intake valve port and the exhaust valve port in fig. 2 and 3 are interchanged.

In this embodiment, the regulator valve includes a valve body having an intake valve port and an exhaust valve port in communication with a valve chamber, and a valve spool. The valve core is movably arranged in the valve cavity, an overflowing valve port is formed between the valve core and the inner wall of the valve cavity, and the overflowing valve port is gradually increased when the valve core is horizontally moved towards the direction close to the air inlet valve port.

In this embodiment, the valve body has an intake valve port and an exhaust valve port communicating with the valve chamber, and the valve element is movably disposed in the valve chamber, so that an overflow valve port is formed between the valve element and the inner wall of the valve chamber, and the overflow valve port gradually increases when the valve element is translated in a direction close to the intake valve port. Through setting up the valve port that overflows, and will overflow the aperture of valve port and the motion of case on being related to along with the motion of case, make the aperture of overflowing the valve port have the adjustability, also can adjust the size of the flow through the governing valve, realized governing valve continuous regulation, ensured user's safety.

EXAMPLE III

The difference from the first embodiment is that the flow-through grooves are not arranged on the support ring.

Specifically, the overflow groove can be directly machined on the inner wall of the valve body. This reduces the complexity of assembly.

Example four

The difference from the first embodiment is that the specific structure of the first engaging portion and the second engaging portion is different.

In the first embodiment, the valve core is provided with an adjusting block, and the support ring is provided with a flow through groove. In the embodiment, the structure on the valve body is arranged in a protruding manner, and the structure on the valve core is in a concave manner, so that the overflowing valve port can be formed between the valve body and the valve core to play a role in adjustment.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A regulator valve, comprising:

a valve body having an intake valve port and an exhaust valve port in communication with the valve cavity;

the valve core is movably arranged in the valve cavity, an overflow valve port is formed between the valve core and the valve cavity, and the overflow valve port gradually changes when the valve core translates.

2. The regulator valve according to claim 1, wherein the valve chamber has a first mating portion, the valve spool has a second mating portion, the flow-through valve port is formed between the first mating portion and the second mating portion, and the size of the flow-through valve port and the movement distance of the valve spool linearly change when the valve spool translates.

3. The regulator valve according to claim 2, wherein the shape of the port of the excess flow valve port comprises at least two modified sides, and the at least two modified sides are parallel to each other.

4. The regulator valve of claim 2, wherein the translational distance of the spool is linear with the magnitude of change in the port area of the excess flow port.

5. The regulating valve according to claim 2,

the second matching part is an adjusting block which is arranged on the peripheral surface of the valve core;

the first matching portion is a flow passing groove which is arranged on the inner wall of the valve cavity and matched with the adjusting block, the flow passing groove extends along the movement direction of the valve core, and the adjusting block translates in the flow passing groove to form the flow passing valve port.

6. The regulating valve of claim 5, wherein the flow surface of the adjusting block on the side close to the inner wall of the valve chamber is inclined with respect to the axis of the valve spool, and the flow surface extends obliquely toward the inner wall of the valve chamber in the direction away from the inlet valve port.

7. The regulator valve of claim 5 wherein the adjustment block is a clearance fit with the trough side wall of the flow trough.

8. The regulator valve according to claim 1, wherein the valve body comprises:

a valve body having the intake valve port and the exhaust valve port;

the support ring is arranged in the valve body, the overflowing valve port is formed between the support ring and the valve core, and the support ring is provided with an overflowing groove.

9. The regulator valve according to any one of claims 1 to 8, wherein an opening cross-section of the inlet valve port is larger than a maximum flow cross-section of the outlet valve port.

10. The regulating valve according to any one of claims 1 to 8, characterized in that the valve chamber is provided with a sealing ring at the position of the inlet valve port, and the position of the valve core facing the sealing ring is a conical structure which can be attached to the sealing ring to block the inlet valve port.

11. The regulator valve according to any one of claims 1 to 8, further comprising a drive device comprising:

the outer peripheral surface of the valve core is provided with a rack, the rack is meshed with the gear shaft, and the rack is arranged along the moving direction of the valve core;

and the driving motor drives the gear shaft to rotate.

12. The regulator valve according to claim 11 wherein one end of said gear shaft extends outwardly from said valve body and is connected to an angle sensor, and the other end of said gear shaft is connected to said drive motor.

13. A gas appliance, comprising the regulating valve of any one of claims 1 to 12, and further comprising a control unit, wherein the control unit is connected to the regulating valve, and the control unit can control the spool of the regulating valve to translate, so that the flow-through valve port of the regulating valve reaches a preset size, and the gas appliance provides a preset flow.

14. The gas fired device of claim 13, further comprising:

the detection unit is electrically connected with the control unit and is used for detecting the position information of the valve core and feeding back a detection result to the control unit; and/or

The alarm unit is electrically connected with the control unit, and the control unit can control the alarm unit to feed back the action of the valve core in at least one form of voice broadcasting, vibration and light indication; and/or

The state indicating unit is electrically connected with the control unit, and the control unit can control the state indicating unit to feed back the cooking state in at least one form of voice broadcasting, vibration and light indication; and/or

The communication assembly is electrically connected with the control unit and used for receiving a control command of an external device and transmitting the control command to the control unit, and the control unit can control the action of the valve core according to the control command.