CN215411992U - Safety protection device for gas stove - Google Patents
Safety protection device for gas stove Download PDFInfo
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- CN215411992U CN215411992U CN202121812382.XU CN202121812382U CN215411992U CN 215411992 U CN215411992 U CN 215411992U CN 202121812382 U CN202121812382 U CN 202121812382U CN 215411992 U CN215411992 U CN 215411992U
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Abstract
The utility model discloses a safety protection device for a gas stove, which comprises an electric controller, an air inlet electromagnetic valve and a temperature sensor, wherein the air inlet electromagnetic valve and the temperature sensor are electrically connected with the electric controller, the input end of the air inlet electromagnetic valve is connected with a gas source, the output end of the air inlet electromagnetic valve is connected with the gas stove, the temperature sensor is arranged above a stove core of the gas stove and used for detecting the temperature of flame or no flame above the stove core and sending the temperature to the electric controller, and the electric controller controls the air inlet electromagnetic valve to be automatically switched on and off according to the temperature above the stove core fed back by the temperature sensor so that the gas source is automatically communicated with or switched off from the gas stove. The utility model can automatically cut off the connection between the gas source and the gas stove when the gas stove is in an accidental flameout state, thereby avoiding gas leakage and ensuring the use safety.
Description
Technical Field
The utility model relates to the technical field of gas safety equipment, in particular to a safety protection device for a gas stove.
Background
The existing gas stove is simple in structure and lacks of a protection device, and under an accidental flameout state, for example, water overflows to shower out flame on a gas stove core in a soup cooking process, or wind blows out flame on the gas stove core, and an air inlet source of the gas stove is still in an open state, so that gas leakage can be caused, and a fire disaster is caused and the risk of explosion is caused.
Therefore, the prior art has yet to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model aims to provide a safety protection device for a gas stove, which aims to automatically cut off the connection between a gas source and the gas stove when the gas stove is in an accidental flameout state, avoid gas leakage and ensure the use safety.
In order to realize the purpose, the utility model adopts the following technical scheme:
a safety protection device for a gas stove comprises an electric controller, an air inlet electromagnetic valve and a temperature sensor, wherein the air inlet electromagnetic valve and the temperature sensor are electrically connected with the electric controller;
the input end of the air inlet electromagnetic valve is connected with a coal gas source, and the output end of the air inlet electromagnetic valve is connected with a gas stove;
the temperature sensor is arranged above a stove core of the gas stove and used for detecting the temperature of the gas stove when flame exists or does not exist above the stove core and sending the temperature to the electric controller;
and the electric controller controls the air inlet electromagnetic valve to be automatically switched on and off according to the temperature above the stove core fed back by the temperature sensor, so that the coal gas source is automatically communicated with or switched off from the gas stove.
Wherein, the temperature sensor is an infrared temperature sensor.
The gas stove comprises an air inlet electromagnetic valve, a gas stove and an electric controller, and is characterized by further comprising a pressure sensor arranged on a connecting pipeline between the output end of the air inlet electromagnetic valve and the gas stove, and the pressure sensor is electrically connected with the electric controller.
The electric control device also comprises an audible and visual alarm electrically connected with the electric controller.
The electric control device also comprises a control switch electrically connected with the electric controller.
Wherein, the controlled switch is a self-reset switch.
The electric control device also comprises an air inlet electromagnetic valve state indicator lamp electrically connected with the electric controller.
Wherein, the electric controller is a PLC controller.
The connecting pipeline between the coal gas source and the input end of the gas inlet electromagnetic valve is a metal pipeline.
The safety protection device for the gas stove is provided with the electric controller, the air inlet electromagnetic valve and the temperature sensor. The gas inlet electromagnetic valve is connected with a gas source and a gas stove, the temperature sensor is arranged above a stove core of the gas stove, and the electric controller controls the automatic on-off of the gas inlet electromagnetic valve according to the temperature above the stove core detected by the temperature sensor, so that the gas source is automatically communicated with the gas stove or automatically turned off. In the gas cooker use, if the strong wind because of the accident, when flame on the stove core is extinguished to water drenches etc. water, the temperature of stove core top can reduce rapidly, temperature sensor will detect the actual temperature of stove core top and contrast with predetermined normal operating temperature, when actual temperature is less than this predetermined temperature, and when the solenoid valve of admitting air was in the open mode again, then automatically controlled ware self-closing inlet solenoid valve, cut off coal gas source and gas cooker, the gas leakage under the unexpected flame-out condition of gas cooker has been avoided, the safety of resident's gas use has been ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic composition diagram of a first embodiment of a safety device for a gas range according to the present invention;
fig. 2 is a schematic composition diagram of a gas range safety protection device according to a second embodiment of the present invention.
Description of reference numerals:
100-a protection device, 10-an electric controller, 20-an air inlet electromagnetic valve, 30-a temperature sensor, 40-a pressure sensor, 50-an audible and visual alarm, 60-a control switch, 70-an air inlet electromagnetic valve state indicator lamp and 200-a gas stove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Referring to fig. 1, the present invention provides a safety protection device 100 for a gas cooker, including an electric controller 10, an air inlet solenoid valve 20 electrically connected to the electric controller 10, and a temperature sensor 30.
Preferably, the electric controller 10 of the present invention is a PLC controller. The PLC controller can be controlled in a programmable mode and is stable.
The input end of the air inlet electromagnetic valve 20 of the utility model is connected with a coal gas source, and the output end of the air inlet electromagnetic valve 20 is connected with a gas stove 200. In this embodiment, the gas source may be gas supplied by a gas company through a house-entry pipeline, and a gas switch is generally disposed at a connection section of the gas source and the input end of the gas inlet solenoid valve 20 as a general manual control switch. In this embodiment, the connection between the air inlet solenoid valve 20 and the gas source and the gas stove 200 is performed by using a pipeline, and preferably, the connection between the air inlet solenoid valve 20 and the gas stove 200 is performed by using a hose, so that the connection between the gas stove 200 and the safety protection device 100 is facilitated.
The gas range safety protection device 100 according to the embodiment of the present invention may be integrated in the gas range 200 or separately provided from the gas range 200.
The temperature sensor 30 of the safety protection device 100 for the gas cooker is arranged above the cooker core of the gas cooker 200, and is used for detecting the temperature when flame exists or does not exist above the cooker core and sending the temperature to the electric controller 10, and the electric controller 10 controls the air inlet electromagnetic valve 20 to be automatically switched on and off according to the temperature above the cooker core fed back by the temperature sensor 30, so that a gas source is automatically communicated with or switched off from the gas cooker 200.
In this embodiment, a bracket may be disposed on a panel of the gas cooker 200 to fix the temperature sensor 30, and the temperature sensor 30 may be directly opposite to the upper portion of the core, so as to detect the temperature of the core when there is flame or no flame. It is understood that the temperature sensor 30 may be directly attached to the panel of the gas range 200 adjacent to the core such that it is directly above the core.
The working principle of the safety protection device 100 for the gas cooker of the present invention is as follows:
1. and (3) opening the gas stove safety protection device 100, and controlling the air inlet electromagnetic valve 20 to be opened by the electric controller 10, so that the gas source is communicated with the gas path of the gas stove 200, and then igniting the gas stove 200 for use.
2. The temperature sensor 30 periodically detects the temperature of the gas range 200 when there is flame or no flame above the range core, and the temperature is used to determine whether the range core is in an ignition state or a flameout state. The electric controller 10 is preset with a normal operating temperature, such as 100 degrees, in the state of the core ignition.
3. When the temperature sensor 30 detects that the actual temperature above the stove core is lower than the preset temperature, the electric controller 10 judges that the stove core is in a flameout state; when the temperature sensor 30 detects that the actual temperature above the stove core is greater than the preset temperature, the electric controller 10 judges that the stove core is in an ignition state.
4. Meanwhile, the electric controller 10 also detects the working state of the air inlet solenoid valve 20, and the working state of the air inlet solenoid valve 20 can be detected and judged through an interface signal or a signal lamp of the PLC. If the gas inlet electromagnetic valve 20 is in an open state and the stove core is in a flameout state, the abnormal extinguishment of flame of the stove core is indicated, the gas inlet electromagnetic valve 20 is immediately and automatically controlled to be closed, the connection between a gas source and the gas stove 200 is cut off, the gas is prevented from leaking through the stove core on the gas stove 200, the risk of gas explosion is avoided, and the use safety of the gas is guaranteed. If the gas inlet electromagnetic valve 20 is in the open state and the stove core is in the ignition state, it indicates that the gas stove 200 is working normally, and the electric controller 10 keeps the gas inlet electromagnetic valve 20 in the open state, so that the gas source is normally communicated with the gas stove 200 to ensure normal gas use of the gas stove 200.
It can be understood that, in order to improve the accuracy of the judgment of the range core in the flameout state, a time length interpretation can be added on the basis of temperature comparison, for example, when the temperature sensor 30 detects that the actual temperature above the range core is lower than the preset temperature, and the duration length is longer than the preset time, for example, 1 minute, the range core is judged to be in the flameout state, and if the temperature sensor 30 detects that the actual temperature above the range core is lower than the preset temperature, but the duration length is shorter than the preset time, for example, 1 minute, the range core is judged to be still in the ignition state, so that the interference of temperature change during the adjustment of the fire quantity can be avoided.
According to the safety protection device 100 for the gas stove, whether the stove core of the gas stove 200 is abnormally extinguished or not is judged by detecting the temperature of the stove core in real time, and once the stove core is abnormally extinguished, the gas inlet electromagnetic valve 20 is immediately turned off to cut off the gas circuit connection between the gas source and the gas stove 200, so that gas leakage of the gas stove 200 in an abnormal flameout state is prevented, the use safety of the gas stove 200 is improved, and the gas use safety of residents is guaranteed.
Preferably, the temperature sensor 30 of the present embodiment is an infrared temperature sensor, which has the advantages of wide temperature measurement range, long service life, reliable performance, fast response and non-contact property.
As shown in fig. 2, the gas cooker safety protection device 100 of the present invention further includes a pressure sensor 40 disposed on a connection pipe between an output end of the inlet solenoid valve 20 and the gas cooker 200, wherein the pressure sensor 40 is electrically connected to the electric controller 10.
The pressure sensor 40 is used to detect whether there is gas leakage in the connection pipe between the gas cooker safety protection device 100 and the gas cooker 200 itself. Specifically, when the air inlet electromagnetic valve 20 and the gas cooker 200 are both in a closed state, the pressure sensor 40 feeds back a pressure detection value to the electric controller 10 in real time, the electric controller 10 continuously records a pressure value fed back by the pressure sensor 40 and monitors a change of the pressure, for example, in a normal non-leakage situation, a 3 kg pressure is reduced to 2 kg for about half an hour, and if the time of the pressure reduction process is shorter than 20 minutes, the connected pipeline is prompted to be aged, the joint is prompted to be leaked, or the gas cooker 200 cannot be tightly closed, and the like, so that gas leakage is caused. The alarm can then be given by means of lights or business.
Preferably, the safety protection device 100 of the present embodiment further comprises an audible and visual alarm 50 electrically connected to the electric controller 10. The audible and visual alarm 50 can give out sound and flash light to give an alarm prompt, and give an alarm for gas leakage caused by abnormal flameout, pipeline aging, incapability of tightly closing the gas stove 200 and the like, so that protective measures can be taken, and safety is guaranteed.
The safety protection device 100 for a gas range of this embodiment further includes a control switch 60 electrically connected to the electronic control unit 10. The control switch 60 may be used to turn on and off the entire gas range safety protection device 100, or may be used to manually control the opening and closing of the inlet solenoid valve 20. Preferably, the controlled switch 60 is a self-resetting switch, which facilitates automatic resetting of the switch and facilitates the next press control.
Preferably, as shown in fig. 2, the gas range safety protection device 100 of the present invention further includes an intake solenoid valve status indicator lamp 70 electrically connected to the electric controller 10. The intake solenoid valve status indicator 70 facilitates the user to know the working status of the intake solenoid valve 20, and simultaneously feeds back the status to the electric controller 10, for example, the intake solenoid valve status indicator 70 may indicate that the intake solenoid valve 20 is in the open status by turning on a green light, and indicate that the intake solenoid valve 20 is in the closed status by turning on a red light, etc.
Further, the connection pipeline between the gas source of the gas cooker safety protection device 100 of the present embodiment and the input end of the air inlet solenoid valve 20 is a metal pipeline.
In the prior art, the connection from the gas switch at the gas source to the gas cooker 200 is all rubber pipes, and the rubber pipes are easy to age or the joints are difficult to compress, so that when the gas cooker 200 is closed and the gas switch is forgotten to be closed, gas leakage can be caused, and the risk of fire and explosion can be caused. After the safety protection device 100 of the gas cooker is added, a metal hard pipe is arranged between the gas switch at the gas source and the input end of the gas inlet electromagnetic valve 20, so that the gas cooker is not easy to age, is easy to compress and cannot cause leakage. Because of the cutting-off function of the air inlet solenoid valve 20, the hose is adopted between the input end of the air inlet solenoid valve 20 and the gas stove 200, and the problem that the gas source leaks in the hose section is avoided.
The safety protection device 100 for the gas cooker provided by the embodiment of the utility model is provided with an electric controller 10, an air inlet electromagnetic valve 20 and a temperature sensor 30. Wherein, the solenoid valve 20 that admits air connects coal gas source and gas range 200, and temperature sensor 30 sets up in the kitchen core top of gas range 200, and automatically controlled ware 10 controls the automatic break-make of solenoid valve 20 that admits air according to the temperature of the kitchen core top that temperature sensor 30 detected to make coal gas source and gas range 200 automatic intercommunication or automatic shutoff. In the gas stove use, when flame on the stove core is extinguished because of the accident, the automatically controlled ware can contrast with predetermined temperature according to the temperature that temperature sensor detected, and the automatic shutdown air inlet solenoid valve behind the abnormal conditions of interpretation has been cut off the intercommunication of coal gas source and gas stove 200, has avoided the gas leakage under the unexpected flame-out circumstances of gas stove 200, has ensured the safety of gas use.
The above description is only for clearly illustrating the utility model and is not therefore to be considered as limiting the scope of the utility model, and all embodiments are not intended to be exhaustive, and all equivalent structural changes made by using the technical solutions of the present invention or other related technical fields directly/indirectly applied under the concept of the present invention are included in the scope of the present invention.
Claims (9)
1. A safety protection device for a gas stove is characterized by comprising an electric controller, an air inlet electromagnetic valve and a temperature sensor, wherein the air inlet electromagnetic valve and the temperature sensor are electrically connected with the electric controller;
the input end of the air inlet electromagnetic valve is connected with a coal gas source, and the output end of the air inlet electromagnetic valve is connected with a gas stove;
the temperature sensor is arranged above a stove core of the gas stove and used for detecting the temperature of the gas stove when flame exists or does not exist above the stove core and sending the temperature to the electric controller;
and the electric controller controls the air inlet electromagnetic valve to be automatically switched on and off according to the temperature above the stove core fed back by the temperature sensor, so that the coal gas source is automatically communicated with or switched off from the gas stove.
2. The safety protection device for gas range according to claim 1, wherein the temperature sensor is an infrared temperature sensor.
3. The safety protection device for the gas cooker as claimed in claim 1, further comprising a pressure sensor disposed on a connecting pipe between the output end of the air inlet solenoid valve and the gas cooker, wherein the pressure sensor is electrically connected to the electric controller.
4. The safety protection device for the gas stove according to claim 1, further comprising an audible and visual alarm electrically connected with the electric controller.
5. The safety protection device for the gas stove according to claim 1, further comprising a control switch electrically connected with the electric controller.
6. The safety protection device for gas range according to claim 5, wherein the controlled switch is a self-reset switch.
7. The safety protection device for the gas cooker according to claim 1, further comprising an air inlet solenoid valve status indicator lamp electrically connected with the electric controller.
8. The safety protection device for gas cookers of claim 1, wherein the electric controller is a PLC controller.
9. The safety protection device for the gas cooker as claimed in claim 1, wherein the connection pipeline between the gas source and the input end of the gas inlet solenoid valve is a metal pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812382.XU CN215411992U (en) | 2021-08-04 | 2021-08-04 | Safety protection device for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812382.XU CN215411992U (en) | 2021-08-04 | 2021-08-04 | Safety protection device for gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215411992U true CN215411992U (en) | 2022-01-04 |
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ID=79657286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121812382.XU Active CN215411992U (en) | 2021-08-04 | 2021-08-04 | Safety protection device for gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215411992U (en) |
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2021
- 2021-08-04 CN CN202121812382.XU patent/CN215411992U/en active Active
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