Active safe gas stove
By setting up a detection system and an electronic switch system in the gas pipeline of the gas stove, the gas pipeline will be automatically closed, which solves the fire risk problem caused by the elderly forgetting to turn off the fire and improves the safety of gas use.
Patent Information
- Application Number
- CN202421622008.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-10
AI Technical Summary
With the advent of an aging society, middle-aged and elderly people using gas stoves are prone to forget to turn off the fire, resulting in an increase in fire accidents. It is difficult for the existing technology to effectively solve this gas safety problem.
A gas active safety gas stove was designed. By setting up a detection system and an electronic switch system in the gas pipeline, the gas flow was detected and the gas pipeline was automatically closed after the use time was reached to prevent the fire risk caused by forgetting to turn off the fire.
It effectively prevents safety hazards caused by users forgetting to turn off the fire, reduces the occurrence of fire accidents, improves the safety of gas use, and protects people's lives and property safety.
Smart Images
Figure CN222992955U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gas technology, especially the gas safety of gas stoves. Background Art
[0002] By 2025, the proportion of the elderly population aged 65 and above in the total population will exceed 12%, which indicates that today's society has shifted from an adult type to an elderly type. With society entering the aging era, gas safety is being increasingly severely tested.
[0003] With the advent of the aging era, the fire ratio caused by gas stoves shows an upward trend. Currently, gas stoves generally have the function of shutting off the gas when the flame goes out. However, when the elderly use gas stoves, they often forget to turn off the gas stove in a timely manner. Kitchen fires caused by forgetting to turn off the fire in a timely manner already account for more than half. If they go out to do things after forgetting to turn off the fire, it is bound to cause more serious fire accidents, resulting in losses of people's lives and property and affecting social stability. Therefore, a technical solution to solve the gas safety problem caused by forgetting to turn off the fire is urgently needed. Utility Model Content
[0004] The purpose of this utility model is to provide an actively safe gas stove to solve at least one of the above technical problems.
[0005] The technical problems solved by this utility model can be realized by adopting the following technical solutions:
[0006] An actively safe gas stove includes a gas stove. The gas stove has a built-in gas pipeline. A detection system is arranged in the gas pipeline. The detection system includes a detection device for detecting gas flow and a detection signal output interface;
[0007] An normally open electric control gas valve is also arranged on the gas pipeline. The electric control gas valve has a control signal input end for controlling the opening and closing of the valve;
[0008] It also includes an electronic switch system with a delayed closing function, called the first delay switch;
[0009] The electronic switch system includes a start signal input end for starting the delayed closing function, a reset signal input end for canceling the delayed closing, and a switch signal output end for outputting a switch signal after the delay reaches;
[0010] The detection signal output interface of the detection system is connected to the start signal input end of the first delay switch;
[0011] The switch signal output end of the first delay switch is connected to the control signal input end of the electric control gas valve.
[0012] In the above design, a detection device for detecting the flow of gas is provided in the gas pipeline. The purpose of detecting the gas flow is to be used as a basis for judging whether the gas is being used. When the detection system detects that the gas is being used, it will output a detection signal externally. The detection signal is used to start the first delay switch to close after a delay. The first delay switch is used to provide the usage duration of the gas stove. When the delay closing is reached, the first delay switch will output a switch signal, and this signal can control the electronic control gas valve to close the gas pipeline and forcibly end the use of the gas stove. Its beneficial effect is to prevent potential safety hazards caused by users forgetting to turn off the fire in time.
[0013] Furthermore, there is also another electronic switch system, called the second delay switch;
[0014] The switch signal output terminal of the first delay switch is connected to the start signal input terminal of the second delay switch;
[0015] The switch signal output terminal of the second delay switch is connected to the control signal input terminal of the electronic control gas valve;
[0016] There is also an alarm prompt system. The alarm prompt system includes a horn and a sound control input signal terminal for starting the horn to sound. The switch signal output terminal of the first delay switch is connected to the sound control input signal terminal of the alarm prompt system;
[0017] There is also a reset system. The reset system includes a reset signal receiving device. The reset signal receiving device has a reset signal output terminal for controlling the electronic switch system to cancel the delay closing. The reset signal output terminal is respectively connected to the reset signal input terminals of the first delay switch and the second delay switch.
[0018] In the above design, the switch output signal of the first delay switch triggers the alarm prompt system to give a sound prompt to the user through sound, and at the same time starts the second delay switch to start timing, waiting for the user to give a reset reply. If a reset reply is obtained within the delay period of the second delay switch, it can continue to be used; if a reset reply is not obtained within the delay period of the second delay switch, then after the second delay switch reaches the delay, the second positioning switch outputs a switch signal to the electronic control gas valve to close the gas pipeline and terminate the use of the gas stove. To achieve the safe use of the gas stove and prevent the fire risk caused by forgetting to turn off the fire.
[0019] Furthermore, the reset signal receiving device is a manual switch, called the reset switch. The reset switch has a switch signal output terminal, and the switch signal output terminal serves as the reset signal output terminal.
[0020] In the above design, the reset signal receiving device uses a manual switch. After the user presses the manual switch, both the first delay switch and the second delay switch are in the initial state, and this process is called reset. At this time, the gas in the gas pipeline is still flowing due to use, so the detection system outputs a detection signal. Therefore, after the reset switch is pressed, the first delay switch enters the countdown process of delayed closing after a short reset.
[0021] For further optimization, the reset signal receiving device is a voice-controlled electronic switch, and the voice-controlled electronic switch has a switch signal output terminal as the reset signal output terminal of the reset system.
[0022] In the above design, the reset signal receiving device uses a voice-controlled electronic switch to receive the user's reset signal in the form of sound and perform reset control with sound, which has the advantages of simplicity and convenience, and the sound has a long propagation distance, which is convenient for use.
[0023] For further optimization, the reset signal receiving device is a voice recognition system; the voice recognition system includes a pick-up for receiving sound; when the voice recognition system recognizes a specific voice, it outputs a switch signal as the reset signal output terminal of the reset system.
[0024] In the optimization of the above design, the reset signal receiving device uses a system with voice recognition, and a specific voice can be agreed upon for the reset operation, or any voice can be set to perform the reset operation.
[0025] Furthermore, the detection system includes a rotatable rotating door panel arranged in the gas pipeline and blocking the gas flow; in front of the opening direction of the rotating door panel, a trigger switch for detecting the opening of the rotating door panel is also arranged, and the signal output port of the trigger switch serves as the detection signal output interface.
[0026] In the above design, it is judged whether the gas is flowing by detecting whether the rotating door panel deflects, and then it is judged whether the gas is in the use state. The detection method is to set a rotating door panel in the gas pipeline. When the gas flow passes through, it will push the rotating door panel to deflect. A trigger switch is arranged behind the rotating door panel. When the gas pushes the rotating door panel to deflect, the trigger switch will send a switch signal to the first delay switch, and then the first delay switch starts the countdown process of delayed closing.
[0027] For further optimization, the trigger switch uses an infrared optoelectronic switch. The infrared rays emitted by the infrared optoelectronic switch are parallel to the rotating door panel when it is not rotated, and the parallel distance is 2 - 5 mm; under the action of its own weight or elastic parts, the rotating door panel returns to the blocking position after the gas flow stops flowing.
[0028] In this design, the trigger switch uses an infrared optoelectronic switch. There are two types of infrared optoelectronic switches: transmissive and reflective, both of which can be used to detect whether the rotating door panel deflects. When the rotating door panel is in the position blocking the gas pipeline, the infrared rays emitted by the infrared optoelectronic switch are parallel to the rotating door panel, and the parallel distance between the two is extremely short, not exceeding 5 mm. When the gas is in use, the air pressure of the gas flow drives the rotating door panel to deflect. Then, the deflected door panel will block or reflect the infrared rays, thereby triggering the infrared optoelectronic switch to detect the signal of gas flow. This signal is sent to the first delay switch, and then the delay closing process starts. Its beneficial effect is that by controlling the duration of gas use, the problem of forgetting to turn off the gas is solved, the risk of fire accidents is reduced, the safety of gas use is improved, and the lives and property of the people are protected.
[0029] In this design, the elastic member that prompts the rotating door panel to return to the blocking position can use elastic members such as torsion springs and tension springs.
[0030] Further, the delay duration of the first delay switch is 20 - 30 min.
[0031] In the above design, the delay duration parameter of the first delay switch is related to Chinese cooking habits. Generally, for cooking methods with a longer cooking duration, the user will leave the gas stove halfway, which will then lead to the situation of forgetting that the gas stove is using gas. Therefore, setting the first delay switch with a delay duration of 20 - 30 min is the best protection duration obtained through multiple statistics.
[0032] Further, the delay duration of the second delay switch is 5 - 10 s.
[0033] In the above design, the delay duration of the second delay switch is the waiting duration for the user to give a choice of whether to continue using or stop using. Therefore, setting the delay duration at 5 - 10 seconds is sufficient for the user to make a decision.
[0034] Further, the electronic switch system includes a single-chip microcomputer processor system. There is control software running in the single-chip microcomputer processor system. The delay closing function is implemented by the control software or by the control software combined with hardware; the single-chip microcomputer processor system has a signal input interface for receiving the voice recognition coding signal; the voice recognition system has a signal output interface for the voice recognition coding signal; the signal output interface of the voice recognition system is connected to the signal input interface of the single-chip microcomputer processor system.
[0035] In the above design, the electronic switch system uses a single-chip microcomputer processor to implement the function of delaying the output of switch signals. The beneficial effect of using a single-chip microcomputer processor system in the electronic switch system is that the single-chip microcomputer processor system can cooperate with the voice recognition system to achieve human-computer interaction through voice and the single-chip microcomputer processor system, such as: changing the set value of the delay time of the first delay switch, voice-controlled reset, voice-controlled turning off the fire, and more voice control functions.
[0036] In the utility model, a detection system is arranged in the gas pipeline, which can accurately detect whether the gas is in use state. Then, the use time of the gas is controlled through a timing switch. After the use time of the gas reaches the set time, a warning sound is made for the user through sound. If the reset receiving device does not receive a reset signal, the timing switch outputs a switch signal to the electric control gas valve arranged on the gas pipeline to close the gas pipeline. Its beneficial effect is that by controlling the use time of the gas, the problem of forgetting to turn off the fire of the gas is solved, the risk of fire accidents is reduced, and the lives and property safety of the people are protected. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:
[0038] Figure 1 is a schematic diagram of one of the embodiments of the present utility model;
[0039] Figure 2 is a schematic diagram of the second embodiment of the present utility model;
[0040] Figure 3 is the connection relationship between the voice recognition system, the first timer, and the second timer;
[0041] Figure 4 is a schematic diagram of the gas flow detection device.
[0042] Symbol Explanation:
[0043] 1. Detection device; 2. First delay switch; 3. Electric control gas valve; 4. Gas pipeline; 5. Second delay switch; 6. Reset system; 7. Manual switch; 8. Voice-controlled electronic switch; 9. Voice recognition system; 11. Gas inlet; 12. Gas outlet; 13. Rotating door panel; 14. Infrared optoelectronic switch; 91. Pickup. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0044] To make the above objects, features, and advantages of the present utility model more understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings of the specification.
[0045] In the following description, numerous specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0046] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for ease of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.
[0047] Furthermore, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate or selectively exclusive of other embodiments.
[0048] Embodiment 1:
[0049] Referring to Figure 1 As shown, the gas active safety gas stove includes a gas stove. The gas stove has a built-in gas pipeline 4. A detection system is provided in the gas pipeline 4. The detection system includes a detection device 1 for detecting the gas flow and a detection signal output interface;
[0050] An electrically controlled gas valve 3 that is normally open is also provided on the gas pipeline 4. The electrically controlled gas valve 3 has a control signal input terminal for controlling the opening and closing of the valve;
[0051] It also includes an electronic switch system with a delay closing function, which is called the first delay switch 2;
[0052] The electronic switch system includes a start signal input terminal for starting the delay closing function, a reset signal input terminal for canceling the delay closing, and a switch signal output terminal for outputting a switch signal after the delay reaches;
[0053] The detection signal output interface of the detection system is connected to the start signal input terminal of the first delay switch 2;
[0054] The switch signal output terminal of the first delay switch 2 is connected to the control signal input terminal of the electrically controlled gas valve 3.
[0055] In this embodiment, a detection device 1 for detecting the gas flow is provided in the gas pipeline 4. The purpose of detecting the gas flow is to serve as a basis for judging whether the gas is being used. When the detection system detects that the gas is being used, it will output a detection signal externally. The detection signal is used to start the first delay switch 2 to close with a delay. The first delay switch 2 is used to provide the usage duration of the gas stove. When the delayed closing arrives, the first delay switch 2 will output a switch signal, and this signal can control the electric control gas valve 3 to close the gas pipeline 4, forcibly ending the use of the gas stove. Its beneficial effect is to prevent potential safety hazards caused by users forgetting to turn off the fire in time.
[0056] Embodiment 2:
[0057] Refer to Figure 2 As shown, there is also another electronic switch system, called the second delay switch 5;
[0058] The switch signal output terminal of the first delay switch 2 is connected to the start signal input terminal of the second delay switch 5;
[0059] The switch signal output terminal of the second delay switch 5 is connected to the control signal input terminal of the electric control gas valve 3;
[0060] There is also a warning and prompting system, which includes a horn and a sound control input signal terminal for starting the horn to sound. The switch signal output terminal of the first delay switch 2 is connected to the sound control input signal terminal of the warning and prompting system;
[0061] There is also a reset system 6. The reset system 6 includes a reset signal receiving device. The reset signal receiving device has a reset signal output terminal for controlling the electronic switch system to cancel the delayed closing. The reset signal output terminal is respectively connected to the reset signal input terminals of the first delay switch 2 and the second delay switch 5.
[0062] In this embodiment, the switch output signal of the first delay switch 2 triggers the warning and prompting system to give a sound prompt to the user through sound, and at the same time starts the second delay switch 5 to start timing, waiting for the user to give a reset reply. If a reset reply is obtained within the delay period of the second delay switch 5, it can continue to be used; if a reset reply is not obtained within the delay period of the second delay switch 5, then after the second delay switch 5 reaches the delay, the second positioning switch outputs a switch signal to the electric control gas valve 3 to close the gas pipeline 4, terminating the use of the gas stove. To achieve the safe use of the gas stove and prevent the fire risk caused by forgetting to turn off the fire.
[0063] Embodiment 3:
[0064] Refer to Figure 2As shown, the reset signal receiving device is a manual switch 7, which is called a reset switch. The reset switch has a switch signal output terminal, and the switch signal output terminal serves as the reset signal output terminal.
[0065] In this embodiment, the reset signal receiving device adopts a manual switch 7. After the user presses the manual switch 7, both the first delay switch 2 and the second delay switch 5 are in the initial state, and this process is called reset. At this time, the gas in the gas pipeline 4 is still flowing due to use, so the detection system has a detection signal output. Therefore, after the reset switch is pressed, the first delay switch 2 enters the countdown process of delayed closing again after a short reset.
[0066] Embodiment 4:
[0067] Refer to Figure 2 As shown, the reset signal receiving device is a voice-controlled electronic switch 8. The voice-controlled electronic switch 8 has a switch signal output terminal as the reset signal output terminal of the reset system 6.
[0068] In this embodiment, the reset signal receiving device adopts a voice-controlled electronic switch 8 to receive the user's reset signal in the form of sound and perform reset control with sound, which has the advantages of simplicity and convenience. Moreover, the sound has a long propagation distance and is convenient to use.
[0069] Embodiment 5:
[0070] Refer to Figure 4 As shown, the reset signal receiving device is a voice recognition system 9; the voice recognition system 9 includes a microphone 91 for receiving sound; when the voice recognition system 9 recognizes a specific voice, it outputs a switch signal as the reset signal output terminal of the reset system 6.
[0071] In the optimization of this embodiment, the reset signal receiving device adopts a system with voice recognition, and specific voices can be agreed for reset operations, or any voice can be set to perform reset operations.
[0072] Embodiment 6:
[0073] The detection system includes a rotatable rotating door panel 13 disposed in the gas pipeline 4 and blocking the gas flow; in front of the opening direction of the rotating door panel 13, a trigger switch for detecting the opening of the rotating door panel 13 is further provided, and the signal output port of the trigger switch serves as the detection signal output interface.
[0074] In this embodiment, it is determined whether the gas is flowing by detecting whether the rotating door panel 13 deflects, and then it is determined whether the gas is in the use state. The detection method is that the gas pipeline has a gas inlet 11 and a gas outlet 12, and the gas has a certain pressure in the pipeline. A rotating door panel 13 is arranged in the gas pipeline 4. When the gas flow circulates, the gas pressure will push the rotating door panel 13 to deflect. A trigger switch is arranged behind the rotating door panel 13. After the gas pushes the rotating door panel 13 to deflect, the trigger switch will send a switch signal to the first delay switch 2, and then the first delay switch 2 starts the countdown process of delayed closing.
[0075] The trigger switch adopts an infrared optoelectronic switch 14. The infrared rays emitted by the infrared optoelectronic switch 14 are parallel to the rotating door panel 13 when it is not rotated, and the parallel distance is 2-5 mm. Under the action of its own weight or elastic parts, the rotating door panel 13 returns to the blocking position after the gas flow stops flowing.
[0076] In this embodiment, the trigger switch adopts an infrared optoelectronic switch 14. The infrared optoelectronic switch 14 has two types: transmissive and reflective, both of which can be used to detect whether the rotating door panel 13 deflects. When the rotating door panel 13 is in the blocking position of the gas pipeline 4, the infrared rays emitted by the infrared optoelectronic switch 14 are parallel to the rotating door panel 13, and the parallel distance between the two is extremely short, not exceeding 5 mm. When the gas is used, the air pressure of the gas flow drives the rotating door panel 13 to deflect. Then, the deflected door panel will block or reflect the infrared rays, thereby triggering the infrared optoelectronic switch 14 to detect the signal of gas flow. This signal is sent to the first delay switch 2, and then the delayed closing process starts. Its beneficial effect is that by controlling the duration of gas use, the problem of forgetting to turn off the gas is solved, the risk of fire accidents is reduced, the safety of gas use is improved, and the lives and property of people are protected.
[0077] In this embodiment, the elastic parts that urge the rotating door panel 13 to return to the blocking position can adopt elastic parts such as torsion springs and tension springs.
[0078] The delay time of the first delay switch 2 is 20-30 min.
[0079] In this embodiment, the delay time parameter of the first delay switch 2 is related to Chinese cooking habits. According to statistics, the steaming time of vegetables is 3-5 minutes, the steaming time of fish is 8-12 minutes, the steaming time of poultry and meat is 15-20 minutes, and the steaming time of pork, beef and mutton is 20-30 minutes.
[0080] For general cooking methods with a relatively long cooking time, people will leave the gas stove halfway, and then the situation of forgetting that the gas stove is using gas will occur. Therefore, setting the first delay switch 2 with a delay time of 20-30 min is the best protection time obtained through various statistics.
[0081] The delay time of the second delay switch 5 is 5 to 10 s.
[0082] In this embodiment, the delay time of the second delay switch 5 is the waiting time for the user to give a choice of continuing or stopping use. Therefore, the delay time is set at 5 to 10 seconds, which is sufficient for the user to make a decision.
[0083] Embodiment 7:
[0084] The electronic switch system includes a single-chip microcomputer processor system. A control software runs in the single-chip microcomputer processor system. The delay closing function is implemented by the control software or by the combination of the control software and hardware; the single-chip microcomputer processor system has a signal input interface for receiving voice recognition coding signals; the voice recognition system 9 has a signal output interface for voice recognition coding signals; the signal output interface of the voice recognition system 9 is connected to the signal input interface of the single-chip microcomputer processor system.
[0085] In this embodiment, the electronic switch system uses a single-chip microcomputer processor to implement the function of delaying the output of a switching value. The beneficial effect of using the single-chip microcomputer processor system in the electronic switch system is that the single-chip microcomputer processor system can cooperate with the voice recognition system 9 to realize human-computer interaction through voice and the single-chip microcomputer processor system, such as: changing the set value of the delay time of the first delay switch 2, voice control for reset, voice control for turning off the fire, and more voice control functions.
[0086] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, that is, those features that are not relevant to the best mode of the present invention or those features that are not relevant to the implementation of the present invention.
[0087] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine task of design, manufacturing, and production.
[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A gas active safety gas stove, comprising a gas stove having a built-in gas pipeline, characterized in that: A detection system is provided in the gas pipeline, and the detection system includes a detection device for detecting the flow of gas, and a detection signal output interface; A normally open electric-controlled gas valve is also provided on the gas pipeline, and the electric-controlled gas valve has a control signal input terminal for controlling the opening and closing of the valve; It also includes an electronic switch system with a delayed closing function, referred to as a first delayed switch; The electronic switch system includes a start signal input terminal for starting a delayed closing function, a reset signal input terminal for canceling the delayed closing, and a switch signal output terminal for outputting a switch signal after the delay is reached; The detection signal output interface of the detection system is connected to the start signal input end of the first delay switch; The switch signal output end of the first delay switch is connected to the control signal input end of the electric-controlled gas valve.
2. The active safety gas stove according to claim 1, characterized in that: Also included is another electronic switch system, referred to as a second time-delay switch; The switch signal output terminal of the first delay switch is connected to the start signal input terminal of the second delay switch; The switch signal output end of the second delay switch is connected to the control signal input end of the electric control gas valve; Also included is a warning prompt system, the warning prompt system includes a speaker, and a sound control input signal terminal for starting the speaker to sound, and the switch signal output terminal of the first delay switch is connected to the sound control input signal terminal of the warning prompt system; It also includes a reset system, which includes a reset signal receiving device. The reset signal receiving device has a reset signal output end for controlling the electronic switch system to cancel the delayed closure, and the reset signal output end is respectively connected to the reset signal input ends of the first delay switch and the second delay switch.
3. The active safety gas stove according to claim 2, characterized in that: The reset signal receiving device is a manual switch, called a reset switch, and the reset switch has a switch signal output end, which serves as a reset signal output end.
4. The active safety gas stove according to claim 2, characterized in that: The reset signal receiving device is a voice-controlled electronic switch, which has a switch signal output end as the reset signal output end of the reset system.
5. The active safety gas stove according to claim 2, characterized in that: The reset signal receiving device is a speech recognition system; The speech recognition system includes a microphone for receiving sound; When the speech recognition system recognizes a specific speech, it outputs a switch signal as a reset signal output terminal of the reset system.
6. The active safety gas stove according to claim 1, characterized in that: The detection system includes a rotatable door panel disposed in the gas pipeline and shielding the gas flow; A trigger switch for detecting the opening of the rotating door panel is also arranged in front of the rotating door panel in the opening direction, and the signal output port of the trigger switch serves as a detection signal output interface.
7. The active safety gas stove according to claim 5, characterized in that: The trigger switch uses an infrared photoelectric switch. The infrared light emitted by the infrared photoelectric switch is parallel to the rotating door panel when it is not rotating, and the parallel distance is 2 to 5 mm. The rotating door panel returns to the shielding position under the action of its own weight or elastic member after the gas flow stops flowing.
8. The active safety gas stove according to claim 1, characterized in that: The delay time of the first delay switch is 20 to 30 minutes.
9. The active safety gas stove according to claim 2, characterized in that: The delay time of the second delay switch is 5 to 10 seconds.
10. The active safety gas stove according to any one of claims 1 to 9, characterized in that: The electronic switch system includes a single-chip processor system, in which control software runs, and the delayed closing function is realized by the control software, or by the control software combined with hardware; The single-chip processor system has a signal input interface for receiving a speech recognition coding signal; The speech recognition system has a signal output interface for speech recognition coded signals; The signal output interface of the speech recognition system is connected to the signal input interface of the single-chip processor system.