CN213334529U - Safety switch for gas stove - Google Patents

Abstract

The utility model discloses a safety switch for gas stove relates to gas stove switch technical field, include switch gear, drive arrangement, timing module, singlechip and examine the inspection gear, wherein: the switch gear is used for controlling the gas stove to be opened and closed and controlling firepower; the driving device is used for driving the driving gear to rotate so as to be meshed with or separated from the switch gear; the angle sensor is used for monitoring the rotation angle of the detection gear, and is connected with the single chip microcomputer which is connected with the driving device; the timing module is used for setting fire-off countdown and is connected with the single chip microcomputer; the automatic gas stove has the function of timing automatic closing, so that safety accidents caused by the fact that a user forgets to close the gas stove are prevented.

Description

Safety switch for gas stove

Technical Field

The utility model relates to a gas stove switch technical field, concretely relates to safety switch for gas stove.

Background

The gas stove that daily use mainly has the ignition, adjusts the intensity of a fire, closes the knob that air supply etc. needs manual operation and controls, and obvious manual operation's cooking utensil must carry out under people's control at the in-process of work, otherwise can cause dry combustion, hot water to spill over, burn the scheduling problem, people can appear sometimes forgetting to close the condition of gas stove in addition, can even cause the incident when serious.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a safety switch for gas stove has regularly self-closing's function to prevent that the user from forgetting to close the gas stove and cause the incident.

The utility model provides a safety switch for gas furnace includes switch gear, drive arrangement, timing module, singlechip and examines and examine the gear, wherein:

the switch gear is used for controlling the gas stove to be opened and closed and controlling firepower;

the driving device is used for driving the driving gear to rotate so as to be meshed with or separated from the switch gear;

the angle sensor is used for monitoring the rotation angle of the detection gear, and is connected with the single chip microcomputer which is connected with the driving device;

the timing module is used for setting fire-off countdown and is connected with the single chip microcomputer.

Preferably, drive arrangement includes motor and worm, the motor is used for driving the worm rotatory, worm and drive gear meshing, drive gear's rear is provided with the spout, just the spout is parallel with the worm, drive gear's pivot and spout sliding connection.

Preferably, the width of the sliding groove is matched with the diameter of the rotating shaft.

Preferably, the safety switch further comprises an alarm, the alarm is connected with the single chip microcomputer, and the alarm is used for giving out a prompt sound when the fire-off countdown of the timing module is 0.

Preferably, the safety switch further comprises a control panel, the control panel comprises a display screen and a button, the display screen is used for displaying the fire-off countdown, and the button is used for adjusting the fire-off countdown.

Preferably, the singlechip is in communication connection with the terminal equipment, and the terminal equipment is internally provided with an APP for reducing firepower, closing firepower and adjusting fire-off countdown.

Preferably, the knob and the switch gear are detachably connected.

Preferably, a slot is arranged on a central shaft of the switch gear, a bolt is arranged on the knob, and the bolt is matched with the slot.

The beneficial effects of the utility model are embodied in:

the utility model has multiple safety design, and can realize the function of timing fire-off of the gas stove by arranging the switch gear, the driving device, the timing module, the single chip microcomputer and the detecting gear, thereby preventing the safety accident caused by forgetting to close the gas stove by a user; by arranging the alarm, an alarm prompt can be sent out when the fire-off countdown is finished; through being connected with built-in APP's terminal equipment, can long-rangely set up and shut down the fire countdown or set up the time of stewing and boiling of small fire.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a safety switch of a gas stove according to an embodiment of the present invention;

fig. 2 is an external view schematically illustrating a safety switch of a gas stove according to an embodiment of the present invention;

fig. 3 is a circuit diagram of a safety switch of a gas stove according to an embodiment of the present invention;

in the drawing, 1-motor, 2-worm, 3-driving gear, 4-rotating shaft, 5-knob, 6-switch gear, 7-detection gear, 8-control panel, 9-single chip, 10-timing module, 11-angle sensor, 12-alarm, 13-terminal equipment and 14-chute.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

The utility model provides a safety switch for gas furnace, includes knob 5, switch gear 6, drive gear 3, drive arrangement, timing module 10, singlechip 9 and examines and detect gear 7, wherein:

the switch gear 6 is used for controlling the gas stove to be opened and closed and controlling firepower; specifically, the knob 5 is detachably connected with the switch gear 6, and further preferably, a slot is arranged on a central shaft of the switch gear 6, a bolt is arranged on the knob 5, and the bolt is matched with the slot; it should be noted that, the connection mode of the knob 5 and the switch gear 6 can refer to the switch structure of the existing gas stove, that is, the knob 5 rotates in a normal state and cannot drive the switch gear 6 to rotate, the knob 5 must be pressed down to insert the plug pin of the knob 5 into the slot, and the knob 5 is pressed down and rotated to drive the switch gear 6 to rotate; in addition, the switch gear is in a fire-off state at 60 degrees, the firepower is gradually increased from 0 degree to 90 degrees, and the firepower reaches the maximum firepower at 90 degrees; the knob 5 drives the switch gear 6 to rotate anticlockwise, so that the gas stove is turned on, firepower is changed from small to large and then reduced, and the switch gear 6 rotates anticlockwise, so that the firepower of the gas stove is reduced until the gas stove is turned off.

The driving device is used for driving the driving gear 3 to rotate anticlockwise and to be meshed with the switch gear 6, or to rotate clockwise and to be separated from the switch gear 6; specifically, the driving device comprises a motor 1 and a worm 2, the motor 1 is used for driving the worm 2 to rotate, the worm 2 is meshed with a driving gear 3, a sliding groove 14 is arranged behind the driving gear 3, the sliding groove 14 is parallel to the worm 2, and a rotating shaft 4 of the driving gear 3 is in sliding connection with the sliding groove 14; further, the width of the sliding groove 14 is matched with the diameter of the rotating shaft 4

The detection gear 7 is meshed with the switch gear 6, an angle sensor 11 is arranged on the detection gear 7, the angle sensor 11 is used for monitoring and detecting the rotation angle of the detection gear 7, the angle sensor 11 is connected with the single chip microcomputer 9, and the single chip microcomputer 9 is connected with the driving device;

the timing module 10 is used for setting fire-off countdown, and the timing module 10 is connected with the singlechip 9;

in this embodiment, the opening mode of gas stove is similar with current switch opening mode, can set up through timing module 10 and close fiery countdown, when closing fiery countdown is 0, singlechip 9 sends corotation instruction to motor 1, motor 1 corotation drives worm 2 corotation, worm 2 corotation drives drive gear 3 anticlockwise rotation, and pivot 4 of drive gear 3 is rotating in spout 14 and is being close to switch gear 6 gradually, until drive gear 3 and switch gear 6 external toothing, therefore switch gear 6 and drive gear 3 antiport, switch gear 6 rotates the execution in the clockwise promptly and closes fiery. The detecting gear 7 is externally meshed with the switch gear 6, so that the detecting gear 7 is driven by the switch gear 6 to rotate, the rotating angular speeds of the detecting gear and the switch gear are the same, and the angle sensor 11 is arranged on the detecting gear 7, so that the rotating angle of the detecting gear 7 can be monitored through the angle sensor 11, namely the rotating angle of the switch gear 6, and the detecting gear 7 can be used for detecting whether gas is started or not at any time and the specific starting angle of the switch gear 6. When the driving device drives the driving gear 3 to execute a fire-off operation, and the angle sensor 11 detects that the angle of the switch gear 6 is 0, the single chip microcomputer 9 sends a reverse rotation instruction to the motor 1, the motor 1 reversely rotates to drive the worm 2 to reversely rotate, the worm 2 reversely rotates to drive the driving gear 3 to rotate clockwise, the rotating shaft 4 of the driving gear 3 rotates in the sliding groove 14 and gradually leaves the switch gear 6, and the motor 1 stops rotating until the driving gear 3 is completely separated from the switch gear 6. It should be noted that the process of engaging or disengaging the drive gear 3 with or from the opening/closing gear 6 by the operation of the motor 1 takes about 3 seconds.

Example 2

In this embodiment, on the basis of embodiment 1, the safety switch further includes an alarm 12, the alarm 12 is connected to the single chip microcomputer 9, and the alarm 12 is used for giving a warning sound when the shut-off countdown of the timing module 10 is 0.

In this embodiment, when the shut-off countdown in the timing module 10 is 0, the single chip microcomputer 9 sends an instruction to the alarm 12, and the alarm 12 can send a high decibel warning sound after receiving the instruction to remind a user of manually shutting off the fire, and can also remind the user that the safety switch is about to execute automatic shut-off of the fire.

Example 3

On the basis of embodiment 2, the safety switch further comprises a control panel 8, the control panel 8 comprises a display screen and a button, the display screen is used for displaying the fire-off countdown, the firepower, the electric quantity and the like, the button is used for adjusting the fire-off countdown, so that a user can set the fire-off time at will, and a power supply of the safety switch can be provided by three or five built-in batteries, so that the safety switch can be installed and replaced by the user. The countdown can be automatically started when the switch gear 6 is started by presetting the fire-off countdown, the normally preset fire-off countdown is 20min, and the time can be changed by a button of the control panel 8.

Example 4

This embodiment is on embodiment 3's basis, it is further, singlechip 9 is connected with terminal equipment 13 communication, terminal equipment 13 embeds and is used for turning down the firepower, close the APP that the firepower was closed in the adjustment, terminal equipment 13 can be the smart mobile phone, can realize setting for closing the fire countdown or setting for the time of small fire stew and boil through built-in APP, it realizes through stopping motor 1 after controlling motor 1 drive worm 2 drives drive gear 3 anticlockwise rotation certain angle to it is wherein, let switching gear 6 only clockwise rotate certain angle and keep a period of time, it needs to pay attention to, when the mode is stewed to small fire, switching gear 6's opening angle can not be less than 45, because the firepower is too little easily disturbed by the external world.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (8)

1. A safety switch for a gas stove, characterized in that: including knob, switch gear, drive arrangement, timing module, singlechip and examine the gear, wherein:

the switch gear is used for controlling the gas stove to be opened and closed and controlling firepower;

the driving device is used for driving the driving gear to rotate so as to be meshed with or separated from the switch gear;

the angle sensor is used for monitoring the rotation angle of the detection gear, and is connected with the single chip microcomputer which is connected with the driving device;

the timing module is used for setting fire-off countdown and is connected with the single chip microcomputer.

2. The safety switch for gas furnaces of claim 1 wherein: the driving device comprises a motor and a worm, the motor is used for driving the worm to rotate, the worm is meshed with the driving gear, a sliding groove is formed in the rear of the driving gear, the sliding groove is parallel to the worm, and a rotating shaft of the driving gear is connected with the sliding groove in a sliding mode.

3. The safety switch for gas furnaces of claim 2 wherein: the width of the sliding groove is matched with the diameter of the rotating shaft.

4. The safety switch for gas furnaces of claim 1 wherein: the safety switch further comprises an alarm, the alarm is connected with the single chip microcomputer, and the alarm is used for giving out a prompt tone when the fire-off countdown of the timing module is 0.

5. The safety switch for gas furnaces of claim 1 wherein: the safety switch further comprises a control panel, the control panel comprises a display screen and a button, the display screen is used for displaying the fire-off countdown, and the button is used for adjusting the fire-off countdown.

6. The safety switch for gas furnaces of claim 1 wherein: the single-chip microcomputer is in communication connection with the terminal device, and the terminal device is internally provided with an APP for reducing firepower, closing firepower and adjusting fire-off countdown.

7. The safety switch for gas furnaces of claim 1 wherein: the knob is detachably connected with the switch gear.

8. The safety switch for a gas furnace of claim 7, wherein: the central shaft of the switch gear is provided with a slot, the knob is provided with a bolt, and the bolt is matched with the slot.

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