Automatic alarm device of gas cooker

Abstract

The invention relates to the technical field of gas alarm, and discloses a gas cooker automatic alarm device which comprises a gas detection knob arranged at a gas cooker end and an alarm mechanism arranged at a door end, the gas detection knob is in communication connection with the alarm mechanism, the gas detection knob is used for detecting whether a gas cooker is working or not, and the alarm mechanism is used for detecting whether the gas cooker is working or not. The alarm mechanism comprises a going-out detection assembly and an alarm assembly, the going-out detection assembly is used for detecting whether a user goes out or not, and under the condition that the gas detection knob detects that the gas cooker is working and when the going-out detection assembly detects that the user goes out, the alarm assembly gives an alarm to remind the user to turn off the gas cooker. The invention is used for solving the problem in the prior art that an alarm device is difficult to play an alarm role for the elderly who do not carry a mobile phone terminal or are difficult to normally use the mobile phone terminal after going out.

Description

Technical Field

[0001] The present invention relates to the technical field of gas alarm, and in particular to an automatic alarm device for gas cookers. Background Art

[0002] Gas cookers are indispensable kitchen utensils for people's home life. When people use gas cookers for cooking, they often leave the kitchen to handle other things, and the gas cookers are left unattended, which is likely to cause fires due to carelessness. Especially when the user goes out during the use of the gas cooker and a fire occurs, it is difficult to intervene in time, posing a great potential safety hazard.

[0003] In the prior art, there is an intelligent knob that can detect the working state of the gas cooker and transmit it to the mobile phone terminal through a wireless module for monitoring and alarming. However, for the elderly living alone who do not carry a mobile phone terminal or have difficulty using a mobile phone terminal normally after going out, it is difficult to play the role of alarming. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an automatic alarm device for gas cookers, which solves the problem in the prior art that the alarm device is difficult to play the role of alarming for the elderly living alone who do not carry a mobile phone terminal or have difficulty using a mobile phone terminal normally after going out.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] An automatic alarm device for gas cookers includes a gas detection knob arranged at the gas cooker end and an alarm mechanism arranged at the household door end. The gas detection knob is communicatively connected with the alarm mechanism. The gas detection knob is used to detect whether the gas cooker is working. The alarm mechanism includes an out - door detection component and an alarm component. The out - door detection component is used to detect whether the user goes out. When the gas detection knob detects that the gas cooker is working and the out - door detection component detects that the user goes out, the alarm component emits an alarm to remind the user to turn off the gas cooker.

[0007] Further, the gas detection knob includes a first housing and a detection mechanism. The first housing is connected to the cooker valve rod and rotates synchronously with the cooker valve rod. The detection mechanism is arranged inside the first housing. The detection mechanism includes a micro - switch and a trigger component. The micro - switch is installed inside the first housing, and the trigger component is installed on the cooker panel. When the first housing rotates, it can drive the micro - switch to move. When the micro - switch moves relative to the trigger component, the trigger component can change the opening and closing state of the micro - switch.

[0008] Further, a first cavity and a second cavity are provided inside the first housing. The first cavity is located above the second cavity. The microswitch is located inside the first cavity. The trigger assembly includes a connecting member and a trigger member. The connecting member is fixedly installed on the cooktop panel. The trigger member is slidably installed on the connecting member. The trigger member is located inside the second cavity, and the trigger member can change the opening and closing state of the microswitch.

[0009] Further, the connecting member includes a fixing ring and a rod body. The fixing ring is fixedly connected to the cooktop panel. The rod body is fixedly connected to the fixing ring. The trigger member is slidably installed on the rod body.

[0010] Further, the gas detection knob includes a first wireless module, and the alarm mechanism includes a second wireless module. The first wireless module is wirelessly connected to the second wireless module.

[0011] Further, a signal amplification module is provided between the first wireless module and the second wireless module.

[0012] Further, the alarm mechanism further includes a second controller. The door-out detection component, the alarm component, and the second wireless module are all electrically connected to the second controller.

[0013] Further, the door-out detection component includes a human body detection module and a vibration detection module. The human body detection module is used to detect whether the user is approaching the door. The vibration detection module is used to detect whether the user opens the door. When the human body detection module and the vibration detection module successively detect a human body approaching signal and a door vibration signal, the alarm component issues an alarm.

[0014] Further, the alarm component includes a speaker and a plurality of flashing lights.

[0015] Further, the alarm mechanism further includes a second housing. The door-out detection component and the alarm are both installed inside the second housing. A second mounting plate is provided at the bottom of the second housing. The second mounting plate is fixedly installed on the inner side of the door. A plurality of hooks are provided on the second mounting plate. A plurality of hook grooves are opened at the bottom of the second housing. The hook grooves are clamped on the hooks.

[0016] Advantages of the present invention:

[0017] 1. By providing a gas detection knob, a door-out detection component, and an alarm component, the gas detection knob can detect the usage state of the gas cooker. When the gas detection knob detects that the gas cooker is working and the door-out detection component detects that the user goes out, the alarm component issues an alarm to remind the user that the gas cooker is in use, reminding the user before going out and effectively reducing potential safety hazards.

[0018] 2. By means of the micro switch and the trigger assembly, rotating the first housing can drive the burner valve stem of the gas stove to rotate, and at the same time drive the micro switch to rotate. When the micro switch moves relative to the trigger assembly, the trigger assembly changes the opening and closing state of the micro switch, so that the on / off state of the gas stove can be reflected by the on / off state of the micro switch, realizing real-time detection of the usage state of the gas stove.

[0019] 3. By setting up the human body detection module and the vibration detection module, the alarm will only judge that the user has left home when the user triggers the human body detection module and the vibration detection module successively, and then the alarm component will remind the user, effectively avoiding the situation of accidental triggering of the alarm.

[0020] 4. By setting up a speaker and multiple strobe lights, using sound and light to send reminders to the user simultaneously, effectively improving the alarm effect.

[0021] 5. By setting up the second mounting plate, the user only needs to fixedly install the second mounting plate on the inner side of the door, and then hang the second housing on the second mounting plate, which is convenient for loading and unloading the alarm mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of an embodiment of an automatic alarm device for a gas stove according to the present invention;

[0023] Figure 2 is a schematic structural diagram of a gas detection knob in an embodiment of the present invention;

[0024] Figure 3 is a schematic internal structure diagram of the gas detection knob in an embodiment of the present invention Figure 1 ;

[0025] Figure 4 is a schematic structural diagram of the first mounting plate of the gas detection knob in an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of the trigger assembly of the gas detection knob in an embodiment of the present invention;

[0027] Figure 6 is a schematic internal structure diagram of the gas detection knob in an embodiment of the present invention Figure 2 ;

[0028] Figure 7 is a schematic structural diagram of the alarm mechanism in an embodiment of the present invention;

[0029] Figure 8 is a schematic exploded view of the alarm mechanism in an embodiment of the present invention Figure 1 ;

[0030] Figure 9 is a schematic exploded view of the alarm mechanism in an embodiment of the present invention Figure 2 ;

[0031] Figure 10 is a schematic cross-sectional structure diagram of the alarm mechanism in the embodiment of the present invention;

[0032] Figure 11 is a schematic internal structure diagram of the alarm mechanism in the embodiment of the present invention;

[0033] Wherein:

[0034] 100, gas detection knob; 200, alarm mechanism; 300, signal amplification module;

[0035] 1, first housing; 11, first mounting plate; 111, first cavity; 112, second cavity; 113, through groove; 12, mounting cylinder; 122, second limiting strip; 13, bushing; 131, first limiting strip; 14, first circuit board; 141, first controller; 142, first wireless module; 143, first power module; 144, first indicator light; 15, indicator window; 16, chute;

[0036] 21, microswitch; 22, connecting piece; 221, fixing ring; 222, rod body; 23, triggering piece; 231, mounting block; 232, triggering ball head; 233, mounting cavity; 234, limiting ring; 235, first through hole;

[0037] 3, second housing; 31, second circuit board; 311, second controller; 312, second power module; 313, second wireless module; 314, volume adjustment module; 315, first switch module; 316, second switch module; 317, second indicator light; 32, second through hole; 33, third through hole; 34, light-transmitting cover; 341, white light-transmitting layer; 342, black light-transmitting layer; 35, volume adjustment button; 36, first switch button; 37, second switch button; 38, second mounting plate; 381, hook; 39, hook groove;

[0038] 51, infrared sensor; 52, vibration sensor;

[0039] 61, speaker; 62, strobe light. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Such as Figure 1As shown in the figure, an automatic alarm device for a gas stove according to the present invention includes a gas detection knob 100 provided at the gas stove end and an alarm mechanism 200 provided at the household door end. The gas detection knob 100 is communicatively connected to the alarm mechanism 200, wherein:

[0042] The gas detection knob 100 is used to detect whether the gas stove is working. Specifically, as Figures 2 - 6 shown, the gas detection knob 100 includes a first housing 1 and a detection mechanism, wherein:

[0043] As Figure 3 and Figure 6 shown, a first mounting plate 11 is arranged in the first housing 1. The first mounting plate 11 divides the first housing 1 into a first cavity 111 and a second cavity 112. The first cavity 111 is located above the second cavity 112. In this embodiment, an installation component is arranged at the bottom of the first housing 1. The installation component is used to realize the connection between the first housing 1 and the stove valve rod and to realize the synchronous rotation of the first housing 1 and the stove valve rod. Specifically, the installation component includes an installation cylinder 12 and a shaft sleeve 13. The installation cylinder 12 is arranged at the bottom of the first housing 1. A plurality of first limiting strips 131 are arranged on the outer surface of the shaft sleeve 13, and a plurality of second limiting strips 122 are arranged on the inner surface of the installation cylinder 12. When the first housing 1 is assembled on the gas stove, the shaft sleeve 13 can be first assembled on the gas stove, the starting position of the first housing 1 is aligned with the starting position of the gas stove, and then the shaft sleeve 13 is inserted into the installation cylinder 12. The first limiting strip 131 is clamped between two adjacent second limiting strips 122 to realize the assembly of the first housing 1 and the gas stove, so as to adapt to gas stoves with different valve rod notch orientations. It should be noted that shaft sleeves 13 with different inner diameter sizes can be set to adapt to gas stoves with different types of connectors.

[0044] As Figure 3 and Figure 5 shown, the detection mechanism is arranged in the first housing 1 and is used to detect whether the gas stove is working. Specifically, the detection mechanism includes a microswitch 21 and a triggering component. The microswitch 21 is installed in the first housing 1, and the triggering component is installed on the stove panel. When the first housing 1 rotates, it can drive the microswitch 21 to move. When the microswitch 21 moves relative to the triggering component, the triggering component can change the on-off state of the microswitch 21. Wherein:

[0045] A first circuit board 14 is arranged in the first cavity 111, and the microswitch 21 is fixedly installed on the first circuit board 14, so that the microswitch 21 is fixedly installed in the first cavity 111.

[0046] As Figure 5As shown, the trigger assembly includes a connecting member 22 and a trigger member 23. The trigger member 23 is used to trigger the microswitch 21, and the connecting member 22 is used to connect the trigger member 23 to the cooktop panel. Specifically, the connecting member 22 includes a fixing ring 221 and a rod body 222. The fixing ring 221 is adhesively fixed to the cooktop panel, so that the connecting member 22 is fixedly installed on the cooktop panel. The rod body 222 is fixedly connected to the fixing ring 221, such as integrally formed, screwed, welded, etc. The trigger member 23 is slidably installed on the rod body 222, and the trigger member 23 is located in the second cavity 112. A chute 16 is opened at the bottom of the first housing 1, and the chute 16 communicates with the second cavity 112. The rod body 222 passes through the chute 16 and is slidably connected to the trigger member 23 in the second cavity 112. In this embodiment, the trigger member 23 includes a mounting block 231 and a trigger ball head 232. An installation cavity 233 is opened on the mounting block 231. A limiting ring 234 is provided at the bottom of the trigger ball head 232, and the limiting ring 234 is located in the installation cavity 233. A first through hole 235 is opened at the top of the installation cavity 233. The trigger ball head 232 passes through the first through hole 235 and protrudes outside the mounting block 231. A through slot 113 is opened between the first cavity 111 and the second cavity 112, and the through slot 113 penetrates the bottom of the first housing 1. The trigger ball head 232 can pass through the through slot 113 and abut against the microswitch 21. When the trigger ball head 232 moves away from the microswitch 21, the trigger ball head 232 changes from the state of abutting against the microswitch 21 to the state of not abutting against the microswitch 21, thereby changing the opening and closing state of the microswitch 21. In this embodiment, an elastic member is provided between the trigger member 23 and the bottom of the installation cavity 233, and the trigger ball head 232 can retract into the installation cavity 233, reducing the occupied space volume of the trigger assembly.

[0047] In this embodiment, the microswitch 21 can adopt normally closed contacts or normally open contacts. The difference is that when using normally closed contacts, when the trigger ball head 232 abuts against the microswitch 21, the microswitch 21 is disconnected; when using normally open contacts, when the trigger ball head 232 abuts against the microswitch 21, the microswitch 21 is connected. In this embodiment, the microswitch 21 is preferably a normally closed contact. When the gas stove is not turned on, the trigger ball head 232 abuts against the microswitch 21, and the microswitch 21 is in a disconnected state, which can further reduce energy consumption.

[0048] Such as Figure 3 and Figure 4As shown, in this embodiment, a first power module 143 is further installed on the first circuit board 14, and a first controller 141 and a first wireless module 142 are further installed on the first mounting plate. The microswitch 21, the first wireless module 142, and the first power module 143 are all electrically connected to the first controller 141 through the first circuit board 14. The first wireless module 142 is a conventional wireless receiver and wireless transmitter in the prior art. The first power module 143 is a button battery that powers the entire gas detection knob 100. The first controller 141 is used to control the operation of the gas detection knob 100. After the microswitch 21 detects the switch information of the gas stove, the first controller 141 sends a signal to the second wireless module 313 of the alarm mechanism 200 through the first wireless module 142 according to the switch information of the microswitch 21. The second controller 311 determines whether the gas stove is working according to the received signal.

[0049] As Figure 3 shown, in this embodiment, a first indicator light 144 is further provided on the first circuit board 14. The first indicator light 144 is electrically connected to the first controller 141. An indicator window 15 is provided on the first housing 1. Through the indicator window 15, the on and off states of the first indicator light 144 can be observed, so as to know the working state of the gas detection knob 100. And the indicator window 15 also plays a role in direction indication. Users can judge the direction in which the first housing 1 needs to rotate when adjusting the firepower according to the direction of the indicator window 15. For example, taking the horizontal state as the dividing line, after the gas stove is ignited, if the indicator window 15 is in the upper half area, rotating the first housing 1 clockwise reduces the firepower, and rotating the first housing 1 counterclockwise increases the firepower; if the indicator window 15 is in the lower half area, rotating the first housing 1 clockwise increases the firepower, and rotating the first housing 1 counterclockwise reduces the firepower.

[0050] As Figures 7 - 11 shown, the alarm mechanism 200 is used to detect whether the user goes out, and when the gas detection knob 100 detects that the gas stove is working and detects that the user goes out, it issues an alarm to remind the user to turn off the gas stove. Specifically,

[0051] The alarm mechanism 200 includes a second housing 3 and an out - door detection component and an alarm component arranged in the second housing 3. Among them:

[0052] As Figure 8 and Figure 9As shown in the figure, a second circuit board 31 is provided inside the second housing 3. The door exit detection component and the alarm component are both mounted on the second circuit board 31. A second controller 311, a second power module 312, and a second wireless module 313 are also provided on the second circuit board 31. The second wireless module 313 is the same as the first wireless module 142 and is a conventional wireless receiver and wireless transmitter in the prior art. A signal amplification module 300 is provided between the first wireless module 142 and the second wireless module 313. The signal amplification module 300 is a conventional signal amplifier in the prior art. The second wireless module 313 is wirelessly connected to the first wireless module 142 through the signal amplification module 300 to ensure normal communication between the first wireless module 142 and the second wireless module 313. The second power module 312 is a rechargeable battery that powers the entire alarm mechanism 200. The first controller 141 and the second controller 311 in this embodiment are both preferably central processing units. The second controller 311 is used to control the operation of the alarm mechanism 200.

[0053] In this embodiment, when the micro switch 21 detects that the gas stove has been continuously working for one hour, the alarm mechanism 200 can automatically send an alarm short message "The gas stove has been continuously working for one hour. Please confirm whether it is dry burning" to the paired mobile phone through the second wireless module 313. The short message is sent once every 5 minutes and is sent three times in total. At the same time, the speaker 61 will emit a prompt tone of "Please check the gas stove" (prompting once every 2 minutes, for a total of five reminders) to remind the user.

[0054] As Figure 11 shown in the figure, the door exit detection component is used to detect whether the user has gone out. Specifically, the door exit detection component includes an infrared sensor 51 and a vibration sensor 52. The infrared sensor 51 and the vibration sensor 52 are both mounted on the second circuit board 31 and are electrically connected to the second controller 311 through the second circuit board 31. The infrared sensor 51 is used to detect whether the user is approaching the household door, and the vibration sensor 52 is used to detect whether the user has opened the household door. When the gas detection knob 100 detects that the gas stove is working, when the infrared sensor 51 and the vibration sensor 52 successively detect a human body approaching signal and a household door vibration signal, the second controller 311 confirms the user's door exit action, and the second controller 311 controls the alarm component to issue an alarm, effectively avoiding the occurrence of accidental touch of the alarm.

[0055] As Figure 11As shown in the figure, the alarm component includes a speaker 61 and a plurality of flashing lights 62. The speaker 61 and the plurality of flashing lights 62 are both installed on the second circuit board 31 and are electrically connected to the second controller 311 through the second circuit board 31. The second controller 311 can control the speaker 61 and the plurality of flashing lights 62 to work synchronously, using sound and light to send reminders to users simultaneously, effectively improving the alarm effect. In this embodiment, when the alarm mechanism 200 receives the ignition signal of the gas detection knob 100, the flashing light 62 operates in a reminder flashing mode (such as flashing red and blue lights once every 15 seconds). When the door detection component detects that the user has gone out, the speaker 61 plays the voice reminder "Please turn off the fire before going out" three times (it should be noted that the voice will not be broadcasted if the door is opened again within 30 seconds after the previous door opening). The flashing light 62 changes from the reminder flashing mode to the alarm flashing mode, and continuously flashes for 30 seconds when the door is not closed. The door can also return to the reminder mode immediately after being closed.

[0056] As Figure 10 As shown in the figure, in this embodiment, the second housing 3 is provided with a second through hole 32 corresponding to the position of the infrared sensor 51. The end of the infrared sensor 51 is inserted into the second through hole 32, so that the infrared sensor 51 protrudes outside the upper housing, facilitating the infrared sensor 51 to detect the human infrared signal.

[0057] As Figure 11 As shown in the figure, in this embodiment, the second housing 3 is provided with a plurality of third through holes 33 corresponding to the position of the speaker 61, facilitating the sound diffusion of the speaker 61. The second housing 3 is provided with a light-transmitting cover 34 corresponding to the position of the plurality of flashing lights 62. The light-transmitting cover 34 includes a white light-transmitting layer 341 and a black light-transmitting layer 342. The white light-transmitting layer 341 is located on the inner layer, and the black light-transmitting layer 342 is located on the outer layer. The white light-transmitting layer 341 can reflect the light of the internal flashing light 62, achieving the effect of enhancing the lighting effect, while the black light-transmitting layer 342 can absorb the external light, preventing the external light from interfering and making the internal light more eye-catching and attention-grabbing. It should be noted that audio is preset in the speaker 61, such as "Please check the gas stove", "Please bring your ID card, mobile phone, keys, wallet, and turn off the water, electricity and close the doors and windows when going out", etc. In this embodiment, the second through hole 32 is opened on the light-transmitting cover 34. In fact, it can also be changed according to the position change of the infrared sensor 51.

[0058] As Figure 11 As shown in the figure, in this embodiment, a volume adjustment module 314 is provided on the second circuit board 31, and a volume adjustment button 35 is provided on the second housing 3. The user can, according to the actual situation, press the volume adjustment button 35 to adjust the volume of the speaker 61 through the volume adjustment module 314, enhancing the user experience.

[0059] As Figure 11As shown in the figure, in this embodiment, a first switch module 315 is provided on the second circuit board 31, and a first switch button 36 corresponding to the first switch module 315 is provided on the second housing 3. Pressing the first switch button 36 can turn off the alarm component through the first switch module 315. After being reminded by the speaker 61 and the flashing light 62, the user can manually turn off the speaker 61 and the flashing light 62 to avoid the continuous alarm of the speaker 61 and the flashing light 62 from generating noise. In fact, a delay module can also be set to automatically stop the alarm after the alarm device has alarmed for a preset delay duration, without the need for manual shutdown.

[0060] As Figure 11 shown in the figure, in this embodiment, a second switch module 316 is provided on the second circuit board 31, and a second switch key 37 is provided on the second housing 3. Flipping the second switch key 37 can control the on / off of the second power module 312 through the second switch module 316. A charging module is provided on the second circuit board 31, and a charging port is provided on the second housing 3. The second power module 312 can be charged through the charging port and the charging module.

[0061] As Figure 11 shown in the figure, in this embodiment, a second indicator light 317 is provided on the second circuit board 31. The second indicator light 317 is used to indicate the working state of the second controller 311. The user can judge whether the alarm mechanism 200 is in a normal working state according to the second indicator light 317, so as to avoid the situation where the alarm mechanism 200 is damaged and cannot be known. For example, if the second indicator light 317 is green, it can indicate that the second controller 311 is working normally. If the second indicator light 317 is red, it can indicate that the second controller 311 has a fault or insufficient power, etc.

[0062] As Figure 8 and Figure 9 shown in the figure, in this embodiment, a second mounting plate 38 is provided at the bottom of the second housing 3. The second mounting plate 38 is fixedly installed on the inner side of the household door. A plurality of hooks 381 are provided on the second mounting plate 38, and a plurality of hook grooves 39 are provided at the bottom of the second housing 3. The hook grooves 39 are clamped on the hooks 381. The user only needs to fixedly install the second mounting plate 38 on the inner side of the door, and then hang the second housing 3 on the second mounting plate 38, which is convenient for loading and unloading the alarm mechanism 200. In this embodiment, the second mounting plate 38 is fixedly adhered to the door by an adhesive method. In fact, it can also be fixedly connected to the door by bolts or other means.

[0063] The working principle of the present invention:

[0064] First, when the user rotates the first housing 1 to turn on the gas stove, the trigger ball head 232 moves away from the micro switch 21. The trigger ball head 232 changes from the state of abutting against the micro switch 21 to the state of not abutting against the micro switch 21, so that the opening and closing state of the micro switch 21 changes from the off state to the connected state. The first controller 141 sends a signal to the second wireless module 313 of the alarm mechanism 200 through the first wireless module 142 according to the switch information of the micro switch 21;

[0065] Subsequently, according to the received signal, the second controller 311 wakes up the alarm mechanism 200 and determines that the gas stove is in the working state. The second controller 311 controls the flash lamp 62 to perform a reminder flashing mode. When the second controller 311 receives that the opening and closing state of the micro switch 21 changes from the connected state to the off state, the alarm mechanism 200 goes to sleep.

[0066] Finally, when the user approaches the household door when going out, the infrared sensor 51 detects the approach of the user and sends a signal that the user has approached to the second controller 311. The second controller 311 determines whether it has received a vibration signal. If the user opens the household door and the vibration sensor 52 detects the vibration signal and sends the vibration signal to the second controller 311, the second controller 311 controls the speaker 61 and the flash lamp 62 to work. The speaker 61 plays a preset audio to give a voice reminder to the user, and the flash lamp 62 flashes to give a light stimulation reminder to the user. If the user does not open the household door and the second controller 311 does not receive the vibration signal, the alarm remains silent.

[0067] When the user returns home, since the vibration sensor 52 is triggered first and then the infrared sensor 51 is triggered, the alarm remains silent.

[0068] If when the micro switch 21 detects that the gas stove has been working continuously for one hour, the alarm mechanism 200 automatically sends an alarm short message "The gas stove has been working continuously for one hour. Please confirm whether it is dry burning" to the paired mobile phone through the second wireless module 313. The short message is sent once every 5 minutes and a total of three times. At the same time, the speaker 61 will emit a prompt tone of "Please check the gas stove" (prompted once every 2 minutes, a total of five reminders).

[0069] 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 by the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An automatic alarm device for a gas cooker, characterized in that, It includes a gas detection knob (100) arranged at the gas cooker end and an alarm mechanism (200) arranged at the household door end. The gas detection knob (100) is communicatively connected to the alarm mechanism (200). The gas detection knob (100) is used to detect whether the gas cooker is working. The alarm mechanism (200) includes a going-out detection component and an alarm component. The going-out detection component is used to detect whether the user goes out. When the gas detection knob (100) detects that the gas cooker is working and the going-out detection component detects that the user goes out, the alarm component issues an alarm to remind the user to turn off the gas cooker.

2. An automatic alarm device for a gas cooker according to claim 1, characterized in that, The gas detection knob (100) includes a first housing (1) and a detection mechanism. The first housing (1) is connected to the cooker valve rod and rotates synchronously with the cooker valve rod. The detection mechanism is arranged in the first housing (1). The detection mechanism includes a microswitch (21) and a triggering component. The microswitch (21) is installed in the first housing (1). The triggering component is installed on the cooker panel. When the first housing (1) rotates, it can drive the microswitch (21) to move. When the microswitch (21) moves relative to the triggering component, the triggering component can change the opening and closing state of the microswitch (21).

3. The automatic alarm device for a gas cooker according to claim 2, characterized in that, A first cavity (111) and a second cavity (112) are arranged in the first housing (1). The first cavity (111) is located above the second cavity (112). The microswitch (21) is located in the first cavity (111). The triggering component includes a connecting piece (22) and a triggering piece (23). The connecting piece (22) is fixedly installed on the cooker panel. The triggering piece (23) is slidably installed on the connecting piece (22). The triggering piece (23) is located in the second cavity (112). The triggering piece (23) can change the opening and closing state of the microswitch (21).

4. An automatic alarm device for a gas cooker according to claim 3, characterized in that, The connecting piece (22) includes a fixing ring (221) and a rod body (222). The fixing ring (221) is fixedly connected to the cooker panel. The rod body (222) is fixedly connected to the fixing ring (221). The triggering piece (23) is slidably installed on the rod body (222).

5. An automatic alarm device for a gas cooker according to any one of claims 1-4, characterized in that, The gas detection knob (100) includes a first wireless module (142). The alarm mechanism (200) includes a second wireless module (313). The first wireless module (142) is wirelessly connected to the second wireless module (313).

6. The automatic alarm device for a gas cooker according to claim 5, characterized in that, A signal amplification module (300) is arranged between the first wireless module (142) and the second wireless module (313).

7. An automatic alarm device for a gas stove according to claim 5, characterized in that, The alarm mechanism (200) further includes a second controller (311). The going-out detection component, the alarm component and the second wireless module (313) are all electrically connected to the second controller (311).

8. An automatic alarm device for a gas cooker according to claim 7, characterized in that, The door-going detection component includes a human body detection module and a vibration detection module. Both the human body detection module and the vibration detection module are electrically connected to the second controller (311). The human body detection module is used to detect whether a user approaches the household door, and the vibration detection module is used to detect whether the user opens the household door. When the human body detection module and the vibration detection module successively detect a human body approach signal and a household door vibration signal, the alarm component emits an alarm.

9. The automatic alarm device for a gas cooker according to claim 7, characterized in that, The alarm component includes a speaker (61) and a plurality of strobe lights (62). Both the speaker (61) and the plurality of strobe lights (62) are electrically connected to the second controller (311).

10. The automatic alarm device for a gas cooker according to claim 7, characterized in that, The alarm mechanism (200) further includes a second housing (3). The door-going detection component and the alarm are both installed inside the second housing (3). A second mounting plate (38) is provided at the bottom of the second housing (3). The second mounting plate (38) is fixedly installed on the inner side of the household door. A plurality of hooks (381) are provided on the second mounting plate (38). A plurality of hook grooves (39) are formed at the bottom of the second housing (3). The hook grooves (39) are clamped on the hooks (381).

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