Quick-assembly type intelligent closing device for gas stove

Abstract

The utility model discloses an intelligent closing device for a quick-assembly type gas stove. Comprising a flame sensor capable of monitoring whether the flame of the gas stove is extinguished or not, a human body induction sensor capable of monitoring whether a human body is located around the gas stove or not, a delay time display setting device capable of timing, a driving mechanism capable of pressing and twisting a mechanical switch knob, and a control device connected with the flame sensor, the human body induction sensor and the delay time display setting device. The PLC is electrically connected with the flame sensor, the human body induction sensor, the delay time display setting device and the driving mechanism, the PLC, the flame sensor, the human body induction sensor, the delay time display setting device and the driving mechanism are all powered by a battery, and on the premise that the gas stove is not replaced, an external device is utilized, so that a common gas stove also has a safety protection effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of kitchen utensil safety, in particular to the technical field of gas stove safety. BACKGROUND

[0002] Gas stove is one of the core equipment of the kitchen, and a mechanical knob switch design is generally adopted. Figure 1 The mechanical switch knob 7 usually has a torsion bar 72 penetrating the panel and a cover 71 sleeved outside the torsion bar 72 (such as the knob cover of the gas stove disclosed in the announcement No. CN210320190U and the gas stove switch knob disclosed in the announcement No. CN202902359U); when in use, the customer needs to press and twist the torsion bar 72 through the cover 71 to turn on or off the gas stove; the traditional gas stove lacks a self-safety protection mechanism because it relies on the user to turn off the gas, so it is easy to cause gas leakage or continuous combustion due to the user's negligence (which is also the main cause of kitchen fires).

[0003] At present, there are also some gas stoves with intelligent protection function on the market, such as the integrated stove with human body induction detection and control disclosed in the announcement No. CN217482812U; however, such products often require the user to replace the entire gas stove equipment, which has the problems of high modification cost and poor adaptability, and is difficult to promote in the stock market. SUMMARY

[0004] The purpose of the utility model is to solve the problems in the prior art, and a quick installation type gas stove intelligent closing device is proposed, which can make ordinary gas stoves also have safety protection function without replacing the gas stove.

[0005] To achieve the above-mentioned purpose, the utility model provides a quick installation type gas stove intelligent closing device, which comprises a flame sensor that can monitor whether the flame of the gas stove is extinguished or not, a human body induction sensor that can monitor whether the human body is around the gas stove, a delay time display setting device that can be timed, a driving mechanism that can press and twist the mechanical switch knob, and a PLC controller that is electrically connected with the flame sensor, the human body induction sensor, the delay time display setting device and the driving mechanism respectively, wherein the PLC controller, the flame sensor, the human body induction sensor, the delay time display setting device and the driving mechanism are all powered by a battery.

[0006] As a preferred, it further comprises a battery power monitoring and display device that can display the battery power, which is electrically connected with the PLC controller and powered by the battery.

[0007] Preferably, the flame sensor and the human body sensor are connected to the PLC controller respectively through input terminals, the delay time display setting device and the battery power monitoring display device are connected to the PLC controller respectively, and the driving mechanism is connected to the PLC controller through an output terminal.

[0008] Preferably, the PLC controller is an STM32 single-chip microcomputer.

[0009] Preferably, the monitoring distance of the human body sensor is 0-5 m.

[0010] Preferably, the driving mechanism comprises a rod sleeve, a rotary driving assembly, a pressing driving assembly, an extension rod and a protective shell, the rod sleeve is sleeved on one end of a torsion rod penetrating through a panel and is driven to rotate and press down by the rotary driving assembly and the pressing driving assembly respectively, the protective shell is arranged outside the rod sleeve, the rotary driving assembly and the pressing driving assembly, the extension rod is arranged on the top of the rod sleeve and one end of the extension rod penetrating through the protective shell is sleeved with a cover.

[0011] Preferably, the rotary driving assembly comprises a rotary driving motor, a driving gear and a driven gear, the driving gear is arranged on an output shaft of the rotary driving motor, the driven gear is sleeved outside the rod sleeve, and the driving gear and the driven gear are engaged.

[0012] Preferably, the pressing driving assembly comprises an inner shell, a pressing driving motor, an adjusting gear, a rack, a ring body and a ball, the rack is vertically and slidably connected with the inner shell, the bottom end of the rack is engaged with the adjusting gear after penetrating into the inner shell, the top end of the rack is indirectly connected with the ring body through a connecting rod, the adjusting gear is driven to rotate by the pressing driving motor, the ring body is sleeved outside the extension rod, and the ball is rotatably connected to the bottom surface of the ring body.

[0013] The utility model discloses the beneficial effects of:

[0014] 1) the flame sensor and the human body sensor are adopted to monitor whether the gas stove flame is extinguished and whether the human body is around the gas stove respectively, and the flame sensor and the human body sensor are matched with the delay time display setting device, so that when the user does not find that the gas stove flame is extinguished abnormally or the user does not watch the continuously working gas stove when exceeding the preset time period, the driving mechanism is pressed and twisted to close the gas stove, the gas leakage phenomenon caused by the gas extinguishing is avoided (the explosion accident is prevented), and the kitchen fire caused by the user forgetting to close the gas when leaving the kitchen for a long time is avoided.

[0015] 2) by adopting the rod sleeve, rotating drive assembly, pressing drive assembly, extension rod and protective shell together constitute the drive mechanism, can first rod sleeve installed in the torsion rod through the panel one end, using the extension rod located above the rod sleeve cover, and then using the rotating drive assembly and pressing drive assembly to drive rod sleeve rotation and down, so that the drive mechanism can be quickly assembled on the ordinary gas stove (without changing the gas stove can realize intelligent safety protection), effectively improve the compatibility of the device;

[0016] 3) by the combination of inner shell, pressing drive motor, adjusting gear, rack, ring and ball to constitute the pressing drive assembly, can use the pressing drive motor, adjusting gear and rack to drive the ring to press the rod sleeve down, and can also use the ball located at the bottom of the ring to reduce the friction between the ring and the rod sleeve, so as to realize the vertical movement of the rod sleeve without affecting the rotation of the rod sleeve.

[0017] The features and advantages of the present application will be described in detail with reference to the embodiments combined with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the installation schematic diagram of the existing mechanical switch knob;

[0019] Figure 2 is the structure connection block diagram of the quick installation type gas stove intelligent closing device of the present application;

[0020] Figure 3 is the installation schematic diagram of the quick installation type gas stove intelligent closing device of the present application;

[0021] Figure 4 is Figure 3 is the front view when the protective shell is removed;

[0022] Figure 5 is the front view of the pressing drive assembly of the quick installation type gas stove intelligent closing device of the present application.

[0023] In the figure: 1-PLC controller, 2-flame sensor, 3-human body induction sensor, 4-delay time display setting device, 5-battery power monitoring display device, 6-driving mechanism, 61-rod sleeve, 62-rotating drive assembly, 621-rotating drive motor, 622-driving gear, 623-passive gear, 63-pressing drive assembly, 631-inner shell, 632-pressing drive motor, 633-adjusting gear, 634-rack, 635-ring, 636-ball, 64-extension rod, 65-protective shell, 7-mechanical switch knob, 71-cover, 72-torsion rod. DETAILED DESCRIPTION

[0024] Referring to Figures 2 to 5The utility model discloses a quick -wearing type gas -cooker intelligence closing device, including the flame sensor 2 that can monitor whether the gas -cooker flame is extinguished, the human body induction sensor 3 that can monitor whether human body is at the gas -cooker around, the time -delay time display setting device 4 that can time, the drive mechanism 6 of press -in and screw -down mechanical switch knob 7 and respectively with flame sensor 2, human body induction sensor 3, time -delay time display setting device 4 and drive mechanism 6 electricity connection's PLC controller 1, PLC controller 1, flame sensor 2, human body induction sensor 3, time -delay time display setting device 4 and drive mechanism 6 are all by the power supply of battery.

[0025] Still include the battery power monitoring display device 5 that can show battery power, the battery power monitoring display device 5 with PLC controller 1 electricity connection and by the power supply of battery.

[0026] Flame sensor 2 and human body induction sensor 3 are respectively connected from input end to PLC controller 1, time -delay time display setting device 4 and battery power monitoring display device 5 are respectively connected with each other to PLC controller 1, drive mechanism 6 is connected from output end to PLC controller 1.

[0027] PLC controller 1 is STM32 singlechip.

[0028] The monitoring distance of human body induction sensor 3 is 0~5m.

[0029] Time -delay time setting display device 4 has the time -display screen and timing device of phase electricity connection.

[0030] Battery power monitoring display device 5 has the time -display screen and power monitoring device of phase electricity connection, wherein power monitoring device can monitor battery power in real time and show real -time power using display screen.

[0031] Drive mechanism 6 includes rod sleeve 61, rotation drive assembly 62, press -in drive assembly 63, extension rod 64 and protection shell 65, the rod sleeve 61 is sleeved on the one end of torsion bar 72 and is driven to rotate and press down respectively by rotation drive assembly 62 and press -in drive assembly 63, the protection shell 65 is simultaneously covered outside rod sleeve 61, rotation drive assembly 62 and press -in drive assembly 63, the extension rod 64 is arranged at the top of rod sleeve 61 and the one end of extension rod 64 is sleeved by cover 71, which is covered by cover 71, wherein, rod sleeve 61 and extension rod 64 with different socket sizes can be configured according to the requirement, thereby adapting the clamping insertion of torsion bar 72 and cover 71 of different sizes.

[0032] The rotating driving assembly 62 comprises a rotating driving motor 621, a driving gear 622 and a driven gear 623, the driving gear 622 is installed at the output shaft of the rotating driving motor 621, the driven gear 623 is sleeved outside the rod sleeve 61, and the driving gear 622 and the driven gear 623 are engaged; in addition, the rotating driving motor 621 can detect the motor working current through an external current sensor to realize the locked-rotor detection, so as to stop the continuous driving of the mechanical switch knob 7 when the mechanical switch knob 7 has been closed; specifically, when the current suddenly rises (exceeds a set threshold value) and lasts for a certain time, it is determined that the locked-rotor (that is, the mechanical switch knob 7 has been closed).

[0033] The pressing driving assembly 63 comprises an inner shell 631, a pressing driving motor 632, an adjusting gear 633, a rack 634, a ring body 635 and a ball 636, the rack 634 is vertically and slidingly connected with the inner shell 631, the bottom end of the rack 634 is engaged with the adjusting gear 633 after extending into the inner shell 631, the top end is indirectly connected with the ring body 635 through a connecting rod, the adjusting gear 633 is driven to rotate by the pressing driving motor 632, the ring body 635 is sleeved outside the extension rod 64, and the ball 636 is rotatably connected to the bottom surface of the ring body 635.

[0034] The utility model discloses a working process:

[0035] During use, if the flame sensor 2 detects that the gas stove is in the combustion state and the human body induction sensor 3 cannot sense the user, the PLC controller 1 will send a signal to the delay time display setting device 4 to start timing; when the time exceeds the preset value, the PLC controller 1 will close the gas stove through the driving mechanism 6; in addition, before timing ends, if the human body induction sensor 3 receives user information again, the PLC controller 1 will send a signal to the delay time display setting device 4 to stop timing, so that the gas stove continues to work normally.

[0036] During use, if the flame is extinguished, the flame sensor 2 will transmit a signal to the PLC controller 1, so that the delay time display setting device 4 starts timing; similarly, when the user has not manually closed the gas stove when the time exceeds the preset value, the PLC controller 1 will press and twist the mechanical switch knob 7 through the driving mechanism 6 to close the gas stove.

[0037] For the driving mechanism 6, when it is needed to close the gas stove, the driving motor 632 is pressed to drive the adjusting gear 633 to rotate to drive the rack 634 to descend, so that the ring body 635 indirectly presses the torsion rod 72 through the rod sleeve 61 in the process of descending with the rack 634, and the rotation driving motor 621 drives the driving gear 622 to rotate, so that the driven gear 623 indirectly twists the torsion rod 72 through the rod sleeve 61 in the process of rotating with the driving gear 622.

[0038] The above embodiments are illustrative of the present application, but not limiting of the present application, and any simple transformation of the present application also belongs to the protection scope of the present application.

Claims

1. A quick-mount type gas stove intelligent closing device, characterized in that: The flame sensor (2) can monitor whether the gas stove flame is extinguished or not, the human body induction sensor (3) can monitor whether the human body is around the gas stove, the delay time display setting device (4) can time, the driving mechanism (6) can press and twist the mechanical switch knob (7), and the PLC controller (1) is electrically connected with the flame sensor (2), the human body induction sensor (3), the delay time display setting device (4) and the driving mechanism (6) respectively.

2. The intelligent closing device for the fast-assembled gas stove according to claim 1, characterized in that: The battery power monitoring display device (5) can display the battery power, and the battery power monitoring display device (5) is electrically connected with the PLC controller (1) and is powered by the battery.

3. The intelligent closing device of the quick-assembly gas stove according to claim 2, characterized in that: The flame sensor (2) and the human body induction sensor (3) are connected to the input end of the PLC controller (1) respectively, the delay time display setting device (4) and the battery power monitoring display device (5) are connected with the PLC controller (1) respectively, and the driving mechanism (6) is connected to the output end of the PLC controller (1).

4. The intelligent closing device of the quick-assembled gas stove according to claim 3, characterized in that: The PLC controller (1) is an STM32 single-chip microcomputer.

5. The intelligent closing device of the quick-assembly gas stove according to claim 3, characterized in that: The monitoring distance of the human body induction sensor (3) is 0-5m.

6. The intelligent closing device of the quick-mount type gas stove according to any one of claims 1 to 5, characterized in that: The driving mechanism (6) includes a rod sleeve (61), a rotating driving assembly (62), a pressing driving assembly (63), an extension rod (64) and a protective shell (65), the rod sleeve (61) is sleeved on one end of the torsion bar (72) penetrating out of the panel and is driven to rotate and press down by the rotating driving assembly (62) and the pressing driving assembly (63) respectively, the protective shell (65) is arranged outside the rod sleeve (61), the rotating driving assembly (62) and the pressing driving assembly (63), the extension rod (64) is arranged at the top of the rod sleeve (61) and one end penetrating out of the protective shell (65) is sleeved by the cover body (71).

7. The intelligent closing device of the quick-assembled gas stove according to claim 6, characterized in that: The rotating driving assembly (62) includes a rotating driving motor (621), a driving gear (622) and a driven gear (623), the driving gear (622) is installed at the output shaft of the rotating driving motor (621), the driven gear (623) is sleeved outside the rod sleeve (61), and the driving gear (622) and the driven gear (623) are engaged.

8. The intelligent closing device of the quick-assembled gas stove according to claim 6, characterized in that: The pressing driving assembly (63) includes an inner shell (631), a pressing driving motor (632), an adjusting gear (633), a rack (634), a ring body (635) and a ball (636), the rack (634) is vertically and slidingly connected with the inner shell (631), the bottom end of the rack (634) is engaged with the adjusting gear (633) after extending into the inner shell (631), the top end is indirectly connected with the ring body (635) through a connecting rod, the adjusting gear (633) is driven to rotate by the pressing driving motor (632), the ring body (635) is sleeved outside the extension rod (64), and the ball (636) is rotatably connected to the bottom surface of the ring body (635).

Images