CN216384274U - Automatic timing fire-closing device for gas stove and transmission assembly and fire-closing mechanism thereof - Google Patents
Automatic timing fire-closing device for gas stove and transmission assembly and fire-closing mechanism thereof Download PDFInfo
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- CN216384274U CN216384274U CN202120179394.7U CN202120179394U CN216384274U CN 216384274 U CN216384274 U CN 216384274U CN 202120179394 U CN202120179394 U CN 202120179394U CN 216384274 U CN216384274 U CN 216384274U
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Abstract
The utility model relates to the technical field of gas stove accessories, in particular to an automatic timing fire-closing device for a gas stove, a transmission assembly of the automatic timing fire-closing device and a fire-closing mechanism of the automatic timing fire-closing device. Including the firearm casing, still including locating the inside ring shape gear circle that is used for driving the gas-cooker knob rotation of casing, be used for controlling the rotatory transmission assembly of gear circle with the gear circle looks meshing, be connected the power component who is used for providing power with transmission assembly, be used for controlling the control mechanism that power component opened and close with power component electric connection. The automatic fire-stopping device is additionally fixed on a switch of a gas stove, the fire-stopping time is manually set according to needs, unattended operation is realized, the switch is automatically closed after timing is finished, convenience is brought, meanwhile, potential safety hazards in a kitchen are eliminated, and people can realize the automatic fire-stopping function without replacing a stove.
Description
This application is a divisional application of the 202021673219.5 patent application
Application date: 08 and 12 months in 2020
Application No.: 202021673219.5
The utility model creates the name: automatic timing fire-closing device for gas stove
Technical Field
The utility model relates to the technical field of gas stove accessories, in particular to an automatic timing fire-closing device for a gas stove, a transmission assembly of the automatic timing fire-closing device and a fire-closing mechanism of the automatic timing fire-closing device.
Background
People often touch the situation that people are busy or leave a kitchen and forget to close the fire on the cooking stove when cooking dishes and cooking by using a gas stove or a kitchen appliance, and certain disadvantages and potential safety hazards exist in the phenomenon. The cooking time is too long, so that the food is too burnt or burnt too much, and the danger of fire and the like can be caused after the cooking time is too long. The gas stove is forgotten to be closed every year in China, so that the gas stove is not burnt, and the accidents cause great property loss and even endanger life safety, and are the biggest pain points of users.
The method for realizing the dry burning prevention function of the existing kitchen range mainly comprises the following steps that a kitchen range manufacturer sets the dry burning prevention function from the aspect of internal structure. In 2015, the haier kitchen appliance released the first intelligent dry-burning-resistant gas stove, and an dry-burning-resistant system of the intelligent dry-burning-resistant gas stove was composed of a dry-burning-resistant probe, an intelligent control module, a gas control valve and the like. And in the second method, the anti-dry burning function is additionally arranged in the gas stove in colleges and universities and various research institutions. The main method is that a corresponding software program is developed by utilizing control devices such as a single chip microcomputer and a PLC and combining technologies such as a pressure sensor, temperature detection, a thermocouple and an electromagnetic valve, a gas stove is modified, and multiple functions such as automatic ignition, timing fire shutoff, fire regulation, dry burning prevention and dry burning prevention can be realized. And thirdly, improving the existing gas stove to increase the dry burning prevention function. An electromagnetic valve is added to the air inlet pipeline, and the air inlet pipeline is used in combination with a timer to cut off an air source, so that the effect of closing fuel gas at fixed time is achieved. The timing device is utilized to simulate the battery to be dead, and the natural gas meter closes the gas valve by itself to achieve the purpose of timing and automatically shutting off fire. Among the methods, the first method and the second method both relate to the transformation of the interior of the gas stove, the transformation process is complicated, the cost is too high, and the market popularization is not facilitated; and the third method is to modify the gas equipment from the outside, but relates to modifying the gas equipment privately, so that gas leakage is easily caused, and dangerous accidents are caused.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to solve the technical problem of providing an automatic timing fire-closing device for a gas stove, a transmission component and a fire-closing mechanism thereof, wherein the automatic timing fire-closing device can be externally added on a gas stove switch, manually sets fire-closing time according to needs, realizes unattended operation, automatically closes the switch after timing is finished, and is simple to install and convenient to use.
The technical scheme adopted by the utility model for realizing the purpose is as follows: an automatic timing fire-stopping device for a gas stove comprises a fire-stopping device shell, an annular gear ring, a transmission assembly, a power assembly and a control mechanism, wherein the annular gear ring is arranged in the shell and used for driving a knob of the gas stove to rotate;
the transmission assembly comprises a transmission shaft, and a bevel gear, a transition gear, a spring and a driving gear which are sequentially coaxially sleeved on the transmission shaft;
one side of the conical gear is provided with gear teeth meshed with the gear ring, and the other side of the conical gear is provided with a first one-way transmission gear;
one side of the transition gear is provided with a second one-way transmission gear meshed with the first one-way transmission gear, and the other side of the transition gear is provided with a third one-way transmission gear;
and a fourth one-way transmission gear meshed with the third one-way transmission gear is arranged on one side of the driving gear.
Furthermore, the shape of the central hole of the driving gear is matched with the shape of the cross section of the transmission shaft, the driving gear is driven by the transmission shaft to rotate, and the central holes of the transition gear and the conical gear are circular.
Further, the transmission assembly further comprises a bevel gear seat for fixing the bevel gear, a transition gear seat for fixing the transition gear and the spring, and a driving gear seat for fixing the driving gear, wherein the bevel gear seat and the driving gear seat are fixedly connected with the shell, and the transition gear seat is connected with the shell in a sliding manner.
Furthermore, the distance between the bevel gear seat and the driving gear seat is greater than the width of the transition gear seat, and the transition gear seat is provided with a guide block for limiting the transition gear seat to move between the bevel gear seat and the driving gear seat.
Furthermore, the power assembly comprises a speed reducing mechanism connected with the transmission shaft and a motor connected with the speed reducing mechanism, and the speed reducing mechanism and the motor are arranged in a motor groove fixed on the shell.
Furthermore, control mechanism includes the circuit board of being connected through electric wire and motor, the circuit board is equipped with the automatic re-setting button with the one side that the gear circle is close to mutually.
Furthermore, the periphery of the gear ring is provided with a convex block for shifting the automatic reset button, and the inner periphery of the gear ring is provided with a clamping groove for fixing the gas stove knob.
Furthermore, the device also comprises a display screen which is electrically connected with the circuit board and is used for displaying the remaining fire-off time, and a power supply which is used for providing electric energy.
Furthermore, the outer side of the shell is also provided with a magic tape used for fixing the fire closer on the gas stove.
Further, the gas stove also comprises a knob shifting block which is used for being placed at the bottom of a switch of the gas stove to match with gas stoves with different specifications.
The automatic timing fire-closing device for the gas stove, the transmission assembly of the automatic timing fire-closing device and the fire-closing mechanism of the automatic timing fire-closing device have the beneficial effects that:
the utility model adopts mechanical design, the gear transmission component carries out transmission, and the gear transmission has the characteristics of wide transmission power and speed application range and the like, so that the whole device has high transmission efficiency, reliable work, long service life and compact structure. The circuit board, the motor and the gear transmission assembly are combined, the intelligent degree is high, and the use is more convenient and faster. The fire stopping device is convenient to mount and dismount, does not need professional personnel to operate, and can be easily and quickly mounted and dismounted by the magic tape and the knob. Each part of the device has simple structure and low cost, can be easily purchased in the market, is economical and practical, and is suitable for various household gas stoves. The device is additionally fixed on a switch of a gas stove, the fire-off time is manually set according to needs, unattended operation is realized, the switch is automatically closed after timing is finished, convenience is brought, meanwhile, potential safety hazards in a kitchen are eliminated, and people can realize the function of automatically turning off fire without replacing a stove.
Drawings
FIG. 1 is a schematic diagram of an internal top view structure according to an embodiment of the present invention;
FIG. 2 is a schematic bottom view of the embodiment of the present invention;
FIG. 3 is a schematic view of the structure of part A of the fire extinguisher according to the embodiment of the present invention;
FIG. 4 is a schematic view of the structure of part A of the fire extinguisher according to the embodiment of the present invention when it is not in operation;
FIG. 5 is a schematic diagram of an expanded configuration of the components of an embodiment of the present invention;
FIG. 6 is a schematic front view of a bevel gear according to an embodiment of the present invention;
FIG. 7 is a schematic top view of a bevel gear according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view B-B of a bevel gear according to an embodiment of the present invention;
FIG. 9 is a front view of a transition gear according to an embodiment of the present invention;
FIG. 10 is a schematic top view of a transition gear according to an embodiment of the present invention;
FIG. 11 is a schematic bottom view of a transition gear according to an embodiment of the present invention;
FIG. 12 is a schematic front view of a driving gear according to an embodiment of the present invention;
FIG. 13 is a schematic top view of a drive gear according to an embodiment of the present invention;
wherein: casing 1, gear ring 2, display screen 3, power 4, gas-cooker knob 5, the card slot 6 of blocking, 7 is pasted to the magic, knob shifting block 8, transmission shaft 9, conical gear 10, transition gear 11, spring 12, driving gear 13, bevel gear seat 14, transition gear seat 15, driving gear seat 16, the teeth of a cogwheel 17, first one-way transmission tooth 18, second one-way transmission tooth 19, third one-way transmission tooth 20, fourth one-way transmission tooth 21, guide block 22, motor 23, motor groove 24, planetary gear reducer 25, circuit board 26, lug 27, automatic re-setting button 28.
Detailed Description
The utility model is further explained in detail with reference to the drawings and the specific embodiments;
example (b):
as shown in fig. 1-13, an automatic timing fire extinguisher for a gas cooker, a transmission assembly thereof and a fire switching mechanism thereof comprise a fire extinguisher shell 1, a circular gear ring 2 arranged inside the shell 1 and used for driving a gas cooker knob 5 to rotate, a transmission assembly engaged with the gear ring 2 and used for controlling the rotation of the gear ring 2, a power assembly connected with the transmission assembly and used for providing power, and a control mechanism electrically connected with the power assembly and used for controlling the on and off of the power assembly; the device also comprises a display screen 3 which is electrically connected with the control mechanism and is used for displaying the remaining fire-off time, and a power supply 4 which is used for providing electric energy. The inner peripheral side of the gear ring 2 is provided with a clamping groove 6 for fixing the gas stove knob 5, and the gear ring 2 and the gas stove knob 5 can only synchronously rotate due to the arrangement of the clamping groove 6. The outer side of the shell 1 is also provided with a magic tape 7 used for fixing the fire closer on the gas stove, and further comprises a knob shifting block 8 used for being placed at the bottom of the gas stove switch to match with gas stoves of different specifications.
The transmission assembly comprises a transmission shaft 9, and a bevel gear 10, a transition gear 11, a spring 12 and a driving gear 13 which are coaxially sleeved on the transmission shaft 9 in sequence, wherein the bevel gear and a gear ring, the bevel gear and the transition gear and the driving gear are in meshing transmission; the bevel gear fixing device further comprises a bevel gear seat 14 for fixing the bevel gear 10, a transition gear seat 15 for fixing the transition gear 11 and the spring 12, and a driving gear seat 16 for fixing the driving gear 13;
one side of the conical gear 10 is provided with gear teeth 17 meshed with the gear ring 2, and the other side is provided with a first one-way transmission gear 18; a second one-way transmission gear 19 meshed with the first one-way transmission gear 18 is arranged on one side of the transition gear 11, a third one-way transmission gear 20 is arranged on the other side of the transition gear, the first one-way transmission gear 18 can be driven to rotate when the second one-way transmission gear 19 rotates clockwise, the first one-way transmission gear 18 cannot be driven to rotate when the second one-way transmission gear 19 rotates anticlockwise, and the first one-way transmission gear 18 can be pushed away; one side of driving gear 13 is equipped with fourth one-way gear 21 with third one-way gear 20 engaged with, can drive third one-way gear 20 and rotate when fourth one-way gear 21 anticlockwise rotation, can't drive third one-way gear 20 and rotate during clockwise rotation, can push away third one-way gear 20. The shape of the central hole of the driving gear 13 is matched with the shape of the cross section of the transmission shaft 9, the driving gear 13 is driven by the transmission shaft 9 to rotate, and the central holes of the transition gear 11 and the conical gear 10 are circular. The cross section shape of the transmission shaft 9 and the central hole shape of the driving gear 13 are square or polygonal, and the transmission shaft 9 can only drive the driving gear to rotate and cannot directly drive the transition gear 11 and the bevel gear 10 to rotate.
When the transmission shaft 9 drives the driving gear 13 to rotate clockwise, slippage occurs between a third one-way transmission gear 20 on the transition gear 11 and a fourth one-way transmission gear 21 on the driving gear 13, the driving gear 13 pushes the transition gear 11 outwards, the transition gear seat 15 moves along with the transition gear 11, when the transition gear seat 15 moves to abut against the bevel gear seat 14, the transition gear seat cannot move continuously, at the moment, the third one-way transmission gear 20 is not completely separated from the fourth one-way transmission gear 21, and therefore, the fourth one-way transmission gear 21 can drive the third one-way transmission gear 20 to rotate clockwise at the moment; at this time, the transition gear seat 15 abuts against the bevel gear seat 14, so that the second one-way transmission gear 19 on the transition gear 11 is meshed with the first one-way transmission gear 18 on the bevel gear 10, and further the bevel gear 10 is driven to rotate, so that the gear ring 2 drives the gas stove switch to rotate clockwise until the gas stove switch returns to the fire-off position. The situation is shown in figure 3.
When the transmission shaft 9 drives the driving gear 13 to rotate anticlockwise, the driving gear 13 drives the transition gear 11 to rotate anticlockwise, the driving gear 13 pulls the transition gear 11 inwards until the fourth one-way transmission gear 21 on the driving gear 13 is completely matched with the third one-way transmission gear 20 on the transition gear 11, and the transition gear seat 15 moves along with the transition gear 11; because transition gear 11 can't drive conical gear 10 anticlockwise rotation, consequently, transition gear 11 follows transition gear seat 15 and keeps away from conical gear 10, and transition gear 11 and conical gear 10 contactless, when the gas-cooker switch was closed to the manual work this moment, only gear circle 2 followed the gas-cooker switch and rotated, and conical gear 10 followed gear circle 2 and rotated, and other mechanisms are all motionless, when guaranteeing the manual switch that closes, rotatory smooth and easy. The situation is shown in fig. 4.
The arrangement of the spring 12 can ensure the distance between the driving gear 13 and the transition gear 11, ensure that the distance can be changed only by the rotation of the driving gear 13, and ensure that the transition gear 11 can be quickly pushed away when the driving gear 13 rotates clockwise. In addition, the spring 12 can also increase the friction force between the transition gear 11 and the transition gear seat 15, so as to increase the torque required for rotating the transition gear 11, ensure the accurate rotation angle of the transition gear 11, and prevent the transition gear 11 from continuing to rotate under the action of inertia to damage the gas stove switch after the transmission shaft 9 stops rotating.
The power assembly comprises a speed reducing mechanism connected with the transmission shaft 9 and a motor 23 connected with the speed reducing mechanism, and the speed reducing mechanism and the motor 23 are arranged in a motor groove 24 fixed on the shell 1. The speed reducing mechanism is a planetary gear reducer 25, and the planetary gear reducer 25 is compact in structure, small in return clearance, high in precision and long in service life.
The control mechanism comprises a circuit board 26 connected with the motor 23 through an electric wire, and the circuit board 26 is electrically connected with the display screen 3. The circuit board is in the prior art, and the manufacturer is: the model of the Aiaccuse electronics technology Limited company is: AQMH2407ND can control motor forward transmission, reversal and braking according to the settlement time, still be equipped with the alarm on circuit board 26, when the count down is about to finish, send out the police dispatch newspaper and remind the user, if the user does not want to close the gas-cooker, can reset the count down time, circuit board 26 is equipped with automatic re-setting button 28 with the one side that gear circle 2 is close to mutually. A lug 27 used for shifting an automatic reset button 28 is arranged on the outer peripheral side of the gear ring 2, when the gas stove switch rotates to a closed position, the lug 27 rotates to the automatic reset button 28 and touches the automatic reset button 28, the timer stops timing after the automatic reset button 28 is touched, and the circuit is disconnected; when the gas stove is manually opened, the lug 27 rotates to a position far away from the automatic reset button 28, the device automatically starts countdown, countdown time can be changed by pressing the button on the circuit board 26, when the countdown is finished, the circuit board 26 controls the motor 23 to rotate forwards, the transmission shaft 9 is further driven to rotate clockwise to close gas, after the gas is closed, the circuit board 26 controls the motor 23 to rotate reversely, the transmission shaft 9 is further driven to rotate anticlockwise, the conical gear 10 is separated from the transition gear 11, and the gas stove knob 5 can rotate smoothly.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The utility model provides a gas-cooker is with transmission assembly of automatic timing ware of closing which characterized in that:
the transmission assembly comprises a transmission shaft, and a bevel gear, a transition gear, a spring and a driving gear which are sequentially coaxially sleeved on the transmission shaft;
one side of the conical gear is provided with gear teeth, and the other side of the conical gear is provided with a first one-way transmission gear;
one side of the transition gear is provided with a second one-way transmission gear meshed with the first one-way transmission gear, and the other side of the transition gear is provided with a third one-way transmission gear;
and a fourth one-way transmission gear meshed with the third one-way transmission gear is arranged on one side of the driving gear.
2. The transmission assembly of the automatic timing fire shutter for gas cookers as set forth in claim 1, wherein: the shape of the central hole of the driving gear is matched with the shape of the cross section of the transmission shaft, the transmission shaft drives the driving gear to rotate, and the central holes of the transition gear and the conical gear are circular.
3. The transmission assembly of the automatic timing fire shutter for gas cookers as set forth in claim 1, wherein: the transmission assembly further comprises a bevel gear seat for fixing the bevel gear, a transition gear seat for fixing the transition gear and the spring, and a driving gear seat for fixing the driving gear.
4. The transmission assembly of the automatic timing fire shutter for gas cookers as set forth in claim 3, wherein: the bevel gear seat and the driving gear seat are fixedly connected with the fire extinguisher shell, and the transition gear seat is connected with the fire extinguisher shell in a sliding mode.
5. The transmission assembly of the automatic timing fire shutter for gas cookers as set forth in claim 4, wherein: the distance between the bevel gear seat and the driving gear seat is larger than the width of the transition gear seat.
6. The transmission assembly of the automatic timing fire shutter for gas cookers as set forth in claim 3, wherein: and the transition gear seat is provided with a guide block for limiting the transition gear seat to move between the bevel gear seat and the driving gear seat.
7. A fire switching mechanism of an automatic timer fire-extinguishing device for a gas cooker, comprising a transmission assembly according to any one of claims 1 to 6, characterized in that: the gas stove rotary knob is characterized by comprising a circular ring-shaped gear ring for driving a gas stove rotary knob to rotate, wherein the transmission assembly is meshed with the gear ring and is used for controlling the gear ring to rotate.
8. The fire opening and closing mechanism of the automatic timing fire closer for gas cookers as set forth in claim 7, wherein: and a clamping groove for fixing a gas stove knob is formed in the inner peripheral side of the gear ring.
9. The fire opening and closing mechanism of the automatic timing fire closer for gas cookers as set forth in claim 8, wherein: the bottom of the gas stove knob is also provided with a knob shifting block used for matching gas stoves with different specifications.
10. The utility model provides a gas-cooker is with automatic timing ware of turning off which characterized in that: comprising a transmission assembly according to any of claims 1 to 6, or comprising a switch fire mechanism according to any of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120179394.7U CN216384274U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove and transmission assembly and fire-closing mechanism thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021673219.5U CN212390418U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove |
| CN202120179394.7U CN216384274U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove and transmission assembly and fire-closing mechanism thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021673219.5U Division CN212390418U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216384274U true CN216384274U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021673219.5U Active CN212390418U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove |
| CN202120179394.7U Active CN216384274U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove and transmission assembly and fire-closing mechanism thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021673219.5U Active CN212390418U (en) | 2020-08-12 | 2020-08-12 | Automatic timing fire-closing device for gas stove |
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| Country | Link |
|---|---|
| CN (2) | CN212390418U (en) |
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2020
- 2020-08-12 CN CN202021673219.5U patent/CN212390418U/en active Active
- 2020-08-12 CN CN202120179394.7U patent/CN216384274U/en active Active
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| CN212390418U (en) | 2021-01-22 |
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