Gas stove fire operation out-of-person flameout protection system

Abstract

The utility model relates to the technical field of gas stoves, in particular to a gas stove fire operation out-of-person flameout protection system which comprises a gas stove body, the gas stove body comprises a gas stove burner, and the gas inlet end of the gas stove burner is connected with a gas supply pipeline. A human body induction module is arranged on the gas stove body and is used for monitoring whether a user on the front side of the gas stove body is on site; the signal input end of the controller is connected with the signal output end of the human body induction module; and the control end of the controller is connected with the control end of a firepower control part structure of the gas stove body so as to control a switch of a gas source of the gas stove. The utility model has the characteristics that the structural design is simpler and more reasonable, and protection measures can be better taken after people leave.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to a flameout protection system for a gas stove when a person is not in contact with the stove during a fire operation. Background Art

[0002] Gas stoves include household gas stoves and commercial gas stoves, which refer to kitchen appliances that use gas fuels such as liquefied petroleum gas (liquid), artificial coal gas, and natural gas for direct heating. Gas stoves are also called gas stoves, stove plates, stoves, or stoves. In terms of gas source, gas stoves are mainly divided into liquefied gas stoves, coal gas stoves, and natural gas stoves. In terms of stove burners, they are divided into single burners, double burners, and multi-burner stoves.

[0003] When the existing household gas stove is in use, the gas stove is ignited, the ignition knob is pressed down and the ignition knob is rotated so that the gas is supplied and ignited by the ignition needle of the gas stove to start burning. After combustion, the flameout protection probe is heated, and after the flameout protection probe is heated, it forms a connected loop and makes the solenoid valve installed on the gas supply pipeline in a normally open state to maintain gas supply; when the household gas stove stops burning, the flameout protection probe is stopped from being heated, and it is disconnected, so that the solenoid valve is in a normally closed state and the gas supply is disconnected to complete the flameout protection. The household gas stove is usually integrated with a flameout protection device to automatically close the solenoid valve after the flameout to better ensure the safety of the household gas stove.

[0004] When a commercial gas stove is in use, the blower is usually turned on to increase the oxygen supply for full combustion, thereby achieving the purpose of controlling the firepower. Whether it is a household gas stove or a commercial gas stove, when in use, there will be a situation where the user leaves. After the user leaves, the gas stove is still in a burning state, and it will continue to be in a burning state without human intervention, which will pose a safety hazard.

[0005] Therefore, how to provide a gas stove flameout protection system with a simpler and more reasonable structural design and better protection measures after people leave has become a technical problem to be solved by technical personnel in this field. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide a gas stove flameout protection system which has a simpler and more reasonable structural design and can better take protective measures after people leave.

[0007] To achieve the above-mentioned purpose, the utility model provides a gas stove flameout protection system when no one is present during open-flame operation, comprising a gas stove body, the gas stove body comprising a gas stove eye, and a gas supply pipeline is connected to the air inlet end of the gas stove eye, and the utility model is characterized in that: a human body sensing module is installed on the gas stove body and is used to monitor whether a user is present at the front side of the gas stove body; a controller is also included, the signal input end of the controller is connected to the signal output end of the human body sensing module; and the control end of the controller is connected to the control end of the fire control part structure of the gas stove body for controlling the switch of the gas source of the gas stove.

[0008] In this way, in the above-mentioned flameout protection system for gas stoves with open flames, the human body sensing module installed on the gas stove body can monitor whether there is a user on the front side of the gas stove body, and send the monitored information to the controller, which then controls the solenoid valve on the gas supply pipeline to be connected or closed according to the received information. Specifically, when the gas stove is in combustion operation, the human body sensing module monitors whether there is a user on the front side of the gas stove body. If there is no user and the user has been away for a certain period of time (a time relay is usually integrated on the controller for timing), the controller sends a signal to the electronic control end of the solenoid valve to close the solenoid valve. When the human body sensing module detects that there is a user on the front side of the gas stove body, the solenoid valve is in a normally open state. The above-mentioned flameout protection system for gas stoves with open flames can better take protective measures after the user leaves, making the gas stove safer to use.

[0009] As an optimization, the gas stove body is a household gas stove body; a flameout protection probe is installed on the gas stove eye of the household gas stove body, the flameout protection probe has two electrical connection ends and each is connected with a control wire, and the far ends of the control wires are respectively connected to the electrical control ends of the solenoid valves installed on the gas supply pipeline; a power supply part structure is connected to one of the control wires; the other control wire is disconnected in the middle and forms two docking ends, and the two docking ends are respectively connected with connecting wires, and the far ends of the two connecting wires are respectively connected to the control ends of the controller, and the controller is then connected to the signal input end of the human body sensing module.

[0010] In this way, when the gas stove body is a household gas stove body, the flameout protection probe on the original gas stove eye is connected to the control wires on the two electrical connection ends of the flameout protection probe, the electric control valve connected to the two control wires, and the power supply part structure connected to the control wires as the basis; then the middle part of another control wire is disconnected to form two docking ends, and the two docking ends are respectively connected with a connecting wire, the far ends of the two connecting wires are respectively connected to the control end of the controller, and the controller is then connected to the signal input end of the human body sensing module, thereby forming a gas stove fire operation away from people flameout protection system, when the above system is working, it can monitor whether the fire is started through the flameout protection probe, and when the gas stove is started and the flameout protection probe is heated, the flameout protection probe, the two control wires, the power supply part structure and the electric control end of the solenoid valve are in a loop and energized, so that the solenoid valve is opened. When the set connecting wires, controller and human body sensing module are connected to complete the control, the human body sensing module can monitor whether there is a user in front of the household gas stove body. If there is no user and has been away for a certain period of time, the controller controls and disconnects the two connecting ends of the control wire, so that the power supply part structure disconnects the power supply. At this time, the solenoid valve is in a closed state.

[0011] When the human body sensing module detects the presence of the user, the controller controls the two docking ends of the control wire to conduct. At this time, after the flameout protection probe is heated by ignition, the flameout protection probe, the two control wires, the power supply structure and the solenoid valve electric control end are in a loop and energized, and the solenoid valve is turned on. The above system can first monitor whether the household gas stove is on, and monitor whether the user has left, and make corresponding controls based on the monitoring information, making the household gas stove safer to use, better avoiding dry burning of kitchen utensils on the household gas stove, and better avoiding the occurrence of fire.

[0012] As an optimization, the household gas stove body is installed on a household stove in a household kitchen; the human body sensing module is installed on a cabinet door on the front side of a storage cabinet under the household stove.

[0013] In this way, the human body sensing module is installed on the cabinet door on the front side of the storage cabinet under the household stove. The installation position of the human body sensing module is more reasonable, and it can better monitor and determine whether there is a user present.

[0014] As an optimization, the human body sensing module is installed on a household range hood above a household gas stove body.

[0015] In this way, the human body sensing module is installed on the household range hood above the household gas stove body, and the position setting is reasonable, which can more conveniently monitor whether the user is in front of the household gas stove body.

[0016] As an optimization, the number of the human body sensing modules is three and they are arranged at intervals in the horizontal direction.

[0017] In this way, there are three human body sensing modules arranged at intervals in the horizontal direction, making the monitoring more reliable and more accurate.

[0018] As an optimization, the human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

[0019] In this way, the human body sensing module adopts infrared detection probe, ultrasonic detector or microwave detector, which is more reasonable and more convenient to install and use.

[0020] As an optimization, the gas stove body is a commercial gas stove body; a gas supply pipe is connected to the lower end of the gas stove eye on the commercial gas stove body, a blower is connected to the far end of the gas supply pipe, and a current sensor is connected to the electrical control end of the blower. The signal output end of the current sensor is connected to the controller, and the controller is connected to the signal input end of the human body sensing module.

[0021] In this way, when the gas stove body is a commercial gas stove body, a current sensor is installed at the electric control end of the blower of the commercial gas stove body, and whether the blower is turned on is judged to identify whether the fire is turned on; after the commercial gas stove body is turned on, the human body sensing module can monitor whether there is a user in front of the commercial gas stove body. If there is no user and after a certain period of time, the controller controls and closes the solenoid valve installed on the gas supply pipeline. The above system can first monitor whether the commercial gas stove is turned on, and monitor whether the user has left, and make corresponding controls according to the monitoring information, so that the commercial gas stove is safer to use, better avoid dry burning of kitchen utensils on the commercial gas stove, and better avoid the occurrence of fire.

[0022] As an optimization, the commercial gas stove body is installed on a commercial stove in a commercial kitchen; and the human body sensing module is installed on the front surface of the commercial stove.

[0023] In this way, the installation position setting of the human body sensing module is more reasonable.

[0024] As an optimization, the human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

[0025] In this way, the selection of human body sensing module is more reasonable and more convenient to install and use.

[0026] As an optimization, the number of the human body sensing modules is three and they are arranged at intervals in the horizontal direction.

[0027] In this way, the layout of the human body sensing module is more reasonable, which can improve the reliability of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a structural schematic diagram of a flameout protection system for a household gas stove in a specific embodiment of the utility model.

[0029] Figure 2 yes Figure 1 Schematic diagram of the structure from a top-down perspective.

[0030] Figure 3 yes Figure 1 A locally enlarged schematic diagram of position A in FIG.

[0031] Figure 4 yes Figure 1 Schematic diagram of the electrical connection structure.

[0032] Figure 5 The utility model is a schematic diagram of the structure of a flameout protection system for a commercial gas stove in a specific embodiment of the utility model.

[0033] Figure 6 yes Figure 5 Schematic diagram of the structure from a top-down perspective.

[0034] Figure 7 yes Figure 5 Schematic diagram of the electrical connection structure. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] Example 1, taking a household gas stove as an example, Figures 1 to 4 As shown, a flameout protection system for a gas stove during open-fire operation when no one is present comprises a gas stove body 1, the gas stove body comprises a gas stove eye 2, a gas supply pipe 3 is connected to the air inlet end of the gas stove eye, a human body sensing module 4 is installed on the gas stove body and is used to monitor whether a user is present at the front side of the gas stove body; a controller 5 is also included, a signal input end of the controller is connected to a signal output end of the human body sensing module; and a control end of the controller is connected to a control end of a fire control part structure of the gas stove body for controlling the switch of the gas source of the gas stove.

[0037] In this specific embodiment, the gas stove body is a household gas stove body 5; a flameout protection probe 6 is installed on the gas stove eye of the household gas stove body, and the flameout protection probe has two electrical connection ends and is respectively connected to a control wire 7, and the far ends of the control wires are respectively connected to the electrical control ends of the solenoid valve 8 installed on the gas supply pipeline; a power supply part structure 9 is connected to one of the control wires; the other control wire is disconnected in the middle and forms two docking ends, and a connecting wire 10 is respectively connected to the two docking ends, and the far ends of the two connecting wires are respectively connected to the control end of the controller, and the controller is then connected to the signal input end of the human body sensing module.

[0038] Specifically, the fire control structure of the household gas stove body includes a flameout protection probe, a control wire, a solenoid valve, a power supply structure and a connecting wire.

[0039] In this way, when the gas stove body is a household gas stove body, the flameout protection probe on the original gas stove eye is connected to the control wires on the two electrical connection ends of the flameout protection probe, the electric control valve connected to the two control wires, and the power supply part structure connected to the control wires as the basis; then the middle part of another control wire is disconnected to form two docking ends, and the two docking ends are respectively connected with a connecting wire, the far ends of the two connecting wires are respectively connected to the control end of the controller, and the controller is then connected to the signal input end of the human body sensing module, thereby forming a gas stove fire operation away from people flameout protection system, when the above system is working, it can monitor whether the fire is started through the flameout protection probe, and when the gas stove is started and the flameout protection probe is heated, the flameout protection probe, the two control wires, the power supply part structure and the electric control end of the solenoid valve are in a loop and energized, so that the solenoid valve is opened. When the set connecting wires, controller and human body sensing module are connected to complete the control, the human body sensing module can monitor whether there is a user in front of the household gas stove body. If there is no user and has been away for a certain period of time, the controller controls and disconnects the two connecting ends of the control wire, so that the power supply part structure disconnects the power supply. At this time, the solenoid valve is in a closed state.

[0040] When the human body sensing module detects the presence of the user, the controller controls the two docking ends of the control wire to conduct. At this time, after the flameout protection probe is heated by ignition, the flameout protection probe, the two control wires, the power supply structure and the solenoid valve electric control end are in a loop and energized, and the solenoid valve is turned on. The above system can first monitor whether the household gas stove is on, and monitor whether the user has left, and make corresponding controls based on the monitoring information, making the household gas stove safer to use, better avoiding dry burning of kitchen utensils on the household gas stove, and better avoiding the occurrence of fire.

[0041] In this specific implementation, the household gas stove body is installed on a household stove 11 provided in a household kitchen; the human body sensing module is installed on a cabinet door on the front side of a storage cabinet provided below the household stove.

[0042] In this way, the human body sensing module is installed on the cabinet door on the front side of the storage cabinet under the household stove. The installation position of the human body sensing module is more reasonable, and it can better monitor and determine whether there is a user present.

[0043] In this specific implementation, the human body sensing module is installed on the household range hood 12 above the household gas stove body.

[0044] In this way, the human body sensing module is installed on the household range hood above the household gas stove body, and the position setting is reasonable, which can more conveniently monitor whether the user is in front of the household gas stove body.

[0045] In this specific implementation manner, there are three human body sensing modules arranged at intervals along the horizontal direction.

[0046] In this way, there are three human body sensing modules arranged at intervals in the horizontal direction, making the monitoring more reliable and more accurate.

[0047] In this specific implementation, the human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

[0048] In this way, the human body sensing module adopts infrared detection probe, ultrasonic detector or microwave detector, which is more reasonable and more convenient to install and use.

[0049] Example 2, taking a commercial gas stove as an example: Figures 5 to 7 As shown, a flameout protection system for a gas stove during open-fire operation when no one is present comprises a gas stove body, the gas stove body comprises a gas stove eye, and a gas supply pipeline is connected to the air inlet end of the gas stove eye. The system is characterized in that: a human body sensing module is installed on the gas stove body and is used to monitor whether a user is present at the front side of the gas stove body; a controller is also included, a signal input end of the controller is connected to a signal output end of the human body sensing module; and a control end of the controller is connected to a control end of a fire control part structure of the gas stove body to control the switch of the gas source of the gas stove.

[0050] Specifically, the fire control structure of the commercial gas stove body includes a blower and a current sensor.

[0051] In this specific embodiment, the gas stove body is a commercial gas stove body 13; a gas supply pipe is connected to the lower end of the gas stove eye on the commercial gas stove body, a blower 14 is connected to the far end of the gas supply pipe, and a current sensor 15 is connected to the electrical control end of the blower. The signal output end of the current sensor is connected to the controller, and the controller is connected to the signal input end of the human body sensing module.

[0052] In this way, when the gas stove body is a commercial gas stove body, a current sensor is installed at the electric control end of the blower of the commercial gas stove body, and whether the blower is turned on is judged to identify whether the fire is turned on; after the commercial gas stove body is turned on, the human body sensing module can monitor whether there is a user in front of the commercial gas stove body. If there is no user and after a certain period of time, the controller controls and closes the solenoid valve installed on the gas supply pipeline. The above system can first monitor whether the commercial gas stove is turned on, and monitor whether the user has left, and make corresponding controls according to the monitoring information, so that the commercial gas stove is safer to use, better avoid dry burning of kitchen utensils on the commercial gas stove, and better avoid the occurrence of fire.

[0053] In this specific implementation manner, the commercial gas stove body is installed on a commercial stove provided in a commercial kitchen; and the human body sensing module is installed on the front surface of the commercial stove.

[0054] In this way, the installation position setting of the human body sensing module is more reasonable.

[0055] In this specific implementation, the human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

[0056] In this way, the selection of human body sensing module is more reasonable and more convenient to install and use.

[0057] In this specific implementation manner, there are three human body sensing modules arranged at intervals along the horizontal direction.

[0058] In this way, the layout of the human body sensing module is more reasonable, which can improve the reliability of monitoring.

[0059] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A flameout protection system for a gas stove when a person is not in contact with the gas stove during hot work, comprising a gas stove body, the gas stove body comprising a gas stove burner, and a gas supply pipeline is connected to the gas inlet end of the gas stove burner, characterized in that; A human body sensing module is installed on the gas stove body and is used to monitor whether a user is present in front of the gas stove body; a controller is also included, the signal input end of the controller is connected to the signal output end of the human body sensing module; and the control end of the controller is connected to the control end of the fire control part structure of the gas stove body to control the switch of the gas source of the gas stove; The gas stove body is a household gas stove body; a flameout protection probe is installed on the gas stove eye of the household gas stove body, the flameout protection probe has two electrical connection ends and each is connected with a control wire, and the far ends of the control wires are respectively connected to the electrical control ends of the solenoid valve installed on the gas supply pipeline; a power supply part structure is connected to one of the control wires; the middle part of the other control wire is disconnected to form two docking ends, and the two docking ends are respectively connected with a connecting wire, and the far ends of the two connecting wires are respectively connected to the control end of the controller, and the controller is then connected to the signal input end of the human body sensing module.

2. A gas stove flameout protection system for open flame operation without human presence as claimed in claim 1, characterized in that: The household gas stove body is installed on a household stove provided in a household kitchen; the human body sensing module is installed on a cabinet door on the front side of a storage cabinet provided under the household stove.

3. A gas stove flameout protection system for open flame operation without personnel as claimed in claim 1, characterized in that: The human body sensing module is installed on the household range hood above the household gas stove body.

4. A gas stove flameout protection system for fire operation without personnel as claimed in claim 1, characterized in that: The number of the human body sensing modules is three and they are arranged at intervals in the horizontal direction.

5. A gas stove flameout protection system for open flame operation without personnel as claimed in claim 1, characterized in that: The human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

6. A gas stove flameout protection system for fire operation without personnel as claimed in claim 1, characterized in that: The gas stove body is a commercial gas stove body; a gas supply pipeline is connected to the lower end of the gas stove eye on the commercial gas stove body, a blower is connected to the far end of the gas supply pipeline, a current sensor is connected to the electrical control end of the blower, a signal output end of the current sensor is connected to a controller, and the controller is connected to the signal input end of the human body sensing module.

7. A gas stove flameout protection system for open flame operation when no one is around as claimed in claim 6, characterized in that: The commercial gas stove body is installed on a commercial stove provided in a commercial kitchen; and the human body sensing module is installed on the front side surface of the commercial stove.

8. A gas stove flameout protection system for open flame operation when no one is around as claimed in claim 6, characterized in that: The human body sensing module is an infrared detection probe, an ultrasonic detector or a microwave detector.

9. A gas stove flameout protection system for fire operation without personnel as claimed in claim 6, characterized in that: The number of the human body sensing modules is three and they are arranged at intervals in the horizontal direction.

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