Over-temperature protection device for kitchen range
By installing infrared temperature detectors and smoke sensors on the gas stove, the electronic valves are controlled to cut off the gas supply, and the fire problem caused by the lack of overtemperature protection devices in the gas stove is solved, real-time fire prevention and safety guarantees are achieved.
Patent Information
- Application Number
- CN202421053115.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The gas stove lacks overtemperature protection devices, which causes overtemperature of edible oil in the pot to cause fires, causing asset losses and safety hazards.
A stove overtemperature protection device is designed, including an infrared temperature detector and smoke sensor. By controlling electronic valves, the combustion device is extinguished and the fire is avoided.
Real-time monitoring of the temperature and smoke in the pot, timely cutting off gas supply, preventing fires, and ensuring kitchen safety.
Smart Images
Figure CN222480565U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stoves, in particular to an over-temperature protection device for stoves. Background Art
[0002] Gas stoves are kitchen appliances that use gas combustion to generate high temperatures to cook food. Restaurant kitchens, canteens of government agencies, enterprises, institutions, and school canteens require a large number of gas stoves for physical cooking, but these stoves basically do not have over-temperature protection devices, which can easily cause kitchen fires.
[0003] Currently, most kitchen fires on the market are caused by overheating of cooking oil in the pot, which is not dealt with in time. Once a fire occurs, it can only be extinguished passively, resulting in asset losses, safety hazards and other problems. Utility Model Content
[0004] The utility model provides a stove over-temperature protection device to solve the problems raised in the background technology.
[0005] In order to solve the above problems, the utility model provides an over-temperature protection device for a stove, comprising a stove table, a stove, an over-temperature protection mechanism, and an air pump. A back plate is fixedly arranged on the rear side of the stove table, the stove table is arranged on one side of the stove table, and a water collecting box is arranged on the stove table behind one side of the stove table, a combustion device is arranged in the stove table, a first air duct is connected to the bottom of the combustion device, and a first gas pipe is connected to one side of the combustion device, an end of the first air duct away from the combustion device is connected to a second air duct through a regulating valve, and the other end of the second air duct is connected to the air pump, the air pump is fixedly installed at the bottom of one side of the stove table, and the first An electronic valve is provided at one end of a gas pipe away from the combustion device, and the electronic valve is connected to a second gas pipe. The other end of the second gas pipe is connected to an air intake pipe through a control valve. The over-temperature protection mechanism is fixedly installed in the back plate and is composed of an infrared temperature detector and a smoke sensor. The infrared temperature detector is installed in the back plate and is tilted directly above the stove. The smoke sensor is installed in the back plate and is located below the infrared temperature detector. A controller is provided in a panel at the lower front side of the stove table. The controller is electrically connected to the electronic valve, the over-temperature protection mechanism, the gas pump, and the combustion device respectively.
[0006] Preferably: a faucet is provided in the back plate above the water collecting box.
[0007] Preferably: a control knob for operating the control valve is provided on the panel at the lower front side of the stove table, and the control knob synchronously controls the combustion device to ignite, a control button for controlling the controller is provided in the panel at the lower front side of the stove table, an adjustment knob for controlling the regulating valve is provided on the panel at the lower front side of the stove table, and a gear position mark is engraved around the adjustment knob in the panel.
[0008] Preferably, a guide box is provided on the stove top near the front side, a filter screen is provided on the top of the guide box, and the inside of the guide box is connected to a drainage pipe provided on the outside of the stove top.
[0009] The beneficial effects of adopting the above technical solution are:
[0010] 1. The temperature inside the pot in the stove can be monitored in real time through the infrared temperature detector. When the temperature reaches the peak set by the infrared temperature detector, the infrared temperature detector will feed back the information to the controller. At the same time, when the smoke sensor detects a large amount of smoke, the controller controls the electronic valve to close and cut off the first gas pipe from supplying gas to the combustion device, thereby extinguishing it, and synchronously controls the gas pump to stop working to avoid fires in the kitchen.
[0011] 2. The diversion box can be used to collect water from the stove and drain it through the drain pipe to prevent water from spilling onto the ground. At the same time, the filter plate can be used to filter out impurities to avoid blockage of the diversion box.
[0012] 3. By adjusting the knob, you can control the amount of gas pump supply to the combustion device, which can effectively promote the full combustion of the gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.
[0015] Among them: 1-stove table; 11-back plate; 12 water collection box; 13-faucet; 14-flow guide box; 15-filter screen; 16-drain pipe; 2-stove; 3-over-temperature protection mechanism; 31-infrared temperature detector; 32-smoke sensor; 4-air pump; 41-first air duct; 42-regulating valve; 43-second air duct; 44-regulating knob; 5-combustion device; 51-first gas pipe; 52-electronic valve; 53-second gas pipe; 54-control valve; 55-intake pipe; 56-control knob; 6-controller; 61-control button. DETAILED DESCRIPTION
[0016] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0017] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0018] like Figure 1-2 In the present embodiment, a stove over-temperature protection device comprises a stove top 1, a stove top 2, an over-temperature protection mechanism 3, and an air pump 4. A back plate 11 is fixedly provided on the rear side of the stove top 1. The stove top 2 is arranged on one side of the stove top 1, and a water collecting box 12 is arranged on the stove top 1 behind one side of the stove top 2. A combustion device 5 is arranged in the stove top 2. A first air duct 41 is connected to the bottom of the combustion device 5, and a first gas pipe 51 is connected to one side of the combustion device 21. One end of the first air duct 41 away from the combustion device 21 is connected to a second air duct 43 through a regulating valve 42, and the other end of the second air duct 43 is connected to the air pump 4. The air pump 4 is fixedly installed at the bottom of one side of the stove top 1. The first gas pipe 5 An electronic valve 52 is provided at one end away from the combustion device 5, and the electronic valve 52 is connected to a second gas pipe 53. The other end of the second gas pipe 3 is connected to an air intake pipe 55 through a control valve 54. The over-temperature protection mechanism 3 is fixedly installed in the back plate 11, and is composed of an infrared temperature detector 31 and a smoke sensor 32. The infrared temperature detector 31 is installed in the back plate and is tilted directly above the stove 2. The smoke sensor 32 is installed in the back plate 11 and is located below the infrared temperature detector 31. A controller 6 is provided in a panel at the lower front side of the stove table 1. The controller 6 is electrically connected to the over-temperature protection mechanism 3, the air pump 4, the combustion device 5, and the electronic valve 52, respectively.
[0019] Through the above technical scheme: when using, put the pot into the stove 2, and operate the controller 6 to respectively energize the ignition mechanism inside the combustion device 5, the air pump 4, the infrared temperature detector 31, the smoke sensor 32, and the electronic valve, and then twist the control valve 54 to send the gas entering the air intake pipe 55 into the second gas pipe 53. At this time, the electronic valve 52 is in an open and closed state, and the gas enters the first gas pipe 51 and is sent into the combustion device 5. The ignition mechanism in the synchronous combustion device 5 is ignited to ignite the combustion device 5. The synchronously energized air pump 4 is started to send air into the second air duct 43 and the air is sent into the first air duct 41 through the regulating valve 42. The air enters the combustion device 5 through the first air duct 41, and the air size is adjusted by the regulating valve 42 to promote the full combustion of the gas in the combustion device 5 to cook the food in the pot. When there is food in the pot but the fire is forgotten to be turned off, the temperature will rise as the pot heats the food. In the following two cases, the controller 6 will control the electronic valve 52 The second gas pipe 53 and the first gas pipe 51 are cut off during operation to prevent gas from entering the combustion device 5, extinguish the combustion device 5, and avoid fire caused by burning of food in the pot. 1. When the infrared temperature detector 31 in the over-temperature protection mechanism 3 detects that the temperature in the pot reaches the set first temperature value of 270°, the information is fed back to the controller 6 (the boiling point of cooking oil is usually below 257° and the ignition point is above 300°). However, since the temperature sometimes reaches 270° instantly during cooking, when the smoke sensor 32 detects that a large amount of high-concentration smoke is continuously generated, the information is fed back to the controller 6. After receiving the double exceeding information, the controller 6 controls the electronic valve 52 to close and cut off the gas supply; 2. When the infrared temperature detector 31 detects that the temperature exceeds 270°, but the smoke sensor 32 does not detect that a continuous high-concentration smoke is generated, the temperature continues to rise to the second temperature setting value of 300°, the controller 6 will also close the electronic valve 52 and cut off the gas supply. The above method can avoid the situation that the gas is cut off due to the sudden temperature rise during stir-frying, which hinders the work, and can effectively avoid the occurrence of fire. When the controller 6 controls the electronic valve 52 to cut off the gas, it simultaneously stops supplying power to the gas pump 4, causing the gas pump 4 to stop working until the staff closes the control valve 54 and restarts the controller 6, so that the controller 6 opens the electronic valve 52 and supplies power to the gas pump 4 before resuming work.
[0020] Preferably, a faucet 13 is provided above the water collecting box 12 in the back plate 11 .
[0021] Through the above technical solution: the faucet 13 is used in conjunction with the water collecting box 12, which is convenient for the chef to work.
[0022] Preferably, a control knob 56 for controlling the control valve 54 is provided on the panel at the lower front side of the stove table 1, and the control knob 56 synchronously controls the combustion device 5 to ignite, a control button 61 for controlling the controller 6 is provided in the panel at the lower front side of the stove table 1, and an adjustment knob 44 for controlling the regulating valve 42 is provided on the panel at the lower front side of the stove table 1, and a gear position mark is engraved around the adjustment knob 44 in the panel.
[0023] Through the above technical solution, the control knob 56 is convenient for controlling the control valve 54 and allowing the ignition mechanism inside the combustion device 5 to perform ignition work, the control button 61 is convenient for controlling the start and stop of the controller 6, and the adjustment knob 44 is convenient for controlling the adjustment valve 42, thereby facilitating the adjustment of the air supply to the combustion device 5.
[0024] Preferably, a guide box 14 is provided on the stove table 1 near the front side, a filter screen 15 is provided on the top of the guide box 14 , and a drainage pipe 16 provided on the outside of the stove table 1 is connected to the inside of the guide box 14 .
[0025] Through the above technical solution, the deflector box 14 is used to collect water in the stove table 1. When the stove table 1 is used for a long time and the temperature is high, the chef will open the faucet 13 to allow water to soak the surface of the stove table 1 to cool down the stove table 1. The water in the stove table 1 can be collected through the deflector box 14 and discharged from the stove table 1 in conjunction with the drain pipe 16 to prevent water from overflowing from the stove table 1 to the ground, affecting the working environment and causing waste of water resources. The filter plate 15 can filter impurities in the stove table 1 to prevent them from entering the deflector box 14 with the water flow, causing the deflector box 14 to be blocked and unable to collect and drain water.
[0026] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; technologies not described in detail in the present invention are implemented with existing technologies.
Claims
1. A stove over-temperature protection device, comprising a stove table, a stove, an over-temperature protection mechanism, and an air pump, characterized in that: A back plate is fixedly arranged on the rear side of the stove table, the stove table is arranged on one side of the stove table, and a water collecting box is arranged on the stove table behind one side of the stove table, a combustion device is arranged in the stove table, a first air duct is connected to the bottom of the combustion device, and a first gas pipe is connected to one side of the combustion device, an end of the first air duct away from the combustion device is connected to the second air duct through a regulating valve, and the other end of the second air duct is connected to an air pump, the air pump is fixedly installed at the bottom of one side of the stove table, an electronic valve is arranged at one end of the first gas pipe away from the combustion device, and the electronic valve is connected to the second gas pipe, and the other end of the second gas pipe is connected to an air intake pipe through a control valve, the over-temperature protection mechanism is fixedly installed in the back plate, and is composed of an infrared temperature detector and a smoke sensor, the infrared temperature detector is installed in the back plate, and is tilted directly above the stove table, the smoke sensor is installed in the back plate, and is located below the infrared temperature detector, a controller is arranged in the panel at the lower front side of the stove table, and the controller is electrically connected to the electronic valve, the over-temperature protection mechanism, the gas pump, and the combustion device respectively.
2. The stove over-temperature protection device according to claim 1, characterized in that: A faucet is arranged above the water collecting box in the back plate.
3. The stove over-temperature protection device according to claim 1, characterized in that: A control knob for operating the control valve is provided on the panel at the lower front side of the stove table, and the control knob synchronously controls the combustion device to ignite. A control button for controlling the controller is provided in the panel at the lower front side of the stove table. An adjustment knob for controlling the regulating valve is provided on the panel at the lower front side of the stove table, and a gear position mark is engraved around the adjustment knob in the panel.
4. The stove over-temperature protection device according to claim 1, characterized in that: A flow guide box is provided on the stove table near the front side, a filter screen is provided on the top of the flow guide box, and the interior of the flow guide box is connected with a drainage pipe provided on the outside of the stove table.