TWM608009U - Flow rate adjusting device for gas stove switch - Google Patents

Abstract

A fire quantity adjusting device for gas stove switch, which is used to be arranged on a gas stove knob. The gas stove knob includes a gas stove knob fixing part and a gas stove knob rotating part, wherein the gas stove switch fire quantity adjusting device includes : A circuit board, the circuit board is fixedly arranged on the gas stove knob fixing part, the circuit board is provided with a sliding varistor circuit; the sliding contact of the sliding varistor circuit is fixedly arranged on the gas stove knob Revolving part. By adding a sliding varistor circuit between the fixed part of the gas stove knob and the rotary part of the gas stove knob, when the rotary part of the gas stove knob is screwed to different positions, the current in the sliding varistor circuit is different, so that the amount of fire in different positions is different. It is calibrated to match the current value in the sliding rheostat circuit, so that the knob can calibrate the current fire quantity of the gas stove to the required fire quantity according to the user's operation, thereby facilitating the realization of intelligent control of the fire quantity.

Description

Fire control device for gas stove switch

This creation refers to a fire control technology for gas stove switch.

A gas stove is a kitchen cooking utensil that uses natural gas, propane or other combustible gases as fuel to generate flames. Because of its convenient use, it is loved by everyone, but these types of gas stoves have relatively simple functions. For example, when we need to cook certain foods at a time, we need to manually adjust the size of the gas stove before setting the timing. Circumstances cause inconvenience to our lives.

In addition, according to the kitchen, a high proportion of fires are caused by gas leakage, and the reasons for fires caused by gas leakage are nothing more than dry burning, soup overflow, forgetting to turn off the fire, etc. Most of these reasons are caused by A small part of the accidents caused by the stove itself are caused by human factors. The reason is that the switch of the gas stove cannot be automatically timed and closed. For this reason, the creator provides a compact size, convenient installation, and meets the practical and user requirements. The required gas safety switch that can be turned off automatically (such as the M597368 patent case) is mainly a safety switch for the position of the ignition rotating shaft installed in the stove. The switch knob is equipped with a timer off function. When the set time is reached, the The gear plate of the main body drives the switch rotating shaft of the gas stove to turn off the fire; the installation is effectively improved, and its use and installation are convenient and safe, and the volume is reduced, which meets the needs of progress, practicality and users.

In addition, as the creators also know, the existing structure is to drive the drive gear plate to move through the drive motor, and drive the switch to rotate through the rotation of the drive gear plate, so as to achieve the purpose of timing off. The user needs to adjust the knob to different positions to control and adjust the high or low fire before setting the timing. The safety switch cannot calibrate the amount of fire used by the user in the process of using the fire and intelligently control the fire. Therefore, the creators devote themselves to research and meet the needs of users to propose this creation.

The main purpose of this creation is to provide a fire volume adjustment device for gas stove switch, by adding a sliding varistor circuit between the gas stove knob fixing part and the gas stove knob rotation part, so that when the gas stove knob rotation part is screwed to different positions When the current in the sliding rheostat circuit is different, the fire quantity in different positions can be matched and calibrated with the current value in the sliding rheostat circuit, so that the knob can calibrate the current fire quantity of the gas stove to the required value according to the operation of the user. The amount of fire used, so as to facilitate the intelligent control of the amount of fire used.

The problem that this creation intends to solve, such as the M597368 "gas safety switch structure" patent case, the safety switch only has the function of a time switch, and the safety switch cannot calibrate the amount of fire used by the user during the fire, making it in Practicality is greatly reduced.

The technical means to solve the problem, in order to achieve the above-mentioned purpose, this creation is to provide a gas stove switch with a fire volume adjustment device, which is used to set on the gas stove knob.

The gas stove knob includes: a gas stove knob fixing part and a gas stove knob rotation part; the gas stove knob fixing part is used to be fixedly arranged on the gas stove; the gas stove knob rotation part is rotatably arranged on the gas stove knob fixing part ; The gas stove knob rotation part is used for Connected to the switch rotation shaft of the gas stove; wherein, the fire quantity adjusting device for the gas stove includes: a circuit board; the circuit board is fixedly arranged on the fixed part of the gas stove knob, and the circuit board is provided with a sliding varistor circuit ; The sliding contact of the sliding varistor circuit is fixedly arranged on the rotating part of the gas stove knob.

Through the above arrangement, the gas stove knob fixing part is fixedly arranged on the gas stove, and the gas stove knob turning part drives the switch rotation shaft to turn on or adjust the gas consumption of the gas stove. The rotary part of the gas stove knob drives the sliding contact to slide on the circuit board. The different positions of the sliding make the resistance value on the sliding rheostat circuit different. A fixed standard voltage is added to the circuit, then the sliding rheostat circuit is based on Different resistance values produce different currents. In this way, when the rotating part of the gas stove knob is turned to different positions, the amount of fire used by the gas stove is different, and the current in the sliding rheostat circuit is also different, so that the amount of fire in different positions is compared with the current in the sliding rheostat circuit. The value is matched and calibrated, so that the knob can calibrate the current fire quantity of the gas stove to the required fire quantity according to the user's operation, so as to realize the intelligent control of the fire quantity.

Wherein, the sliding contact is electrically connected with a controller, and the controller is electrically connected with a fire control switch, and the fire control switch is arranged on the knob transmission part of the gas stove.

Through the above solution, when the user turns the rotary part of the gas stove knob to the proper fire position, the user turns on the fire control switch, the fire control switch sends a start signal to the controller, and the controller detects the sliding rheostat circuit at the current position Calibrate and record the current value corresponding to the amount of fire used at this time.

Wherein, the sliding contact of the sliding varistor circuit is a shrapnel, and the shrapnel abuts against The circuit board slips.

Through the above solution, the elastic sheet has a certain elasticity, and the elasticity enables the elastic sheet to stably abut against the PCB board, so that the sliding contacts on the sliding rheostat circuit can be in stable contact, and it is not easy to disconnect the sliding rheostat circuit. Wherein, the elastic sheet includes: an elastic sheet body, which is arranged obliquely with the upper surface of the circuit board; and a bending head connected to the elastic sheet body, and the bending head slides against the circuit board.

Wherein, the gas stove knob fixing part includes: a drive gear plate, the teeth on the drive gear plate are distributed in a circumferential array around the center; the gas stove knob rotation part includes: located in the circumferential array of teeth and used to generate power after being energized The driving device includes a driving gear that meshes with the driving gear plate; the circuit board is arranged in an arc shape, and the circuit board is fixedly connected with the driving gear plate.

Through the above solution, the driving device provides rotation power for the rotation of the gas stove knob rotation part, so that the gas stove knob rotation part can rotate relative to the gas stove knob fixing part, and the circuit board is fixedly connected with the drive chain to make the circuit The board is fixed and does not rotate, and the arc-shaped circuit board is arranged so that the contour of the circuit board matches the contour of the drive gear plate, which is convenient for installation.

Wherein, the gas stove knob rotation part further includes: a screw housing located above the drive gear plate and used to fix the drive device, the drive gear plate is provided with an induction block, and the screw housing is fixedly provided with a sensor The circuit board is provided with a finite element switch on the sensing circuit board, and the limit element switch is used to rotate to the position of the sensing block and send a control signal to the controller; the elastic sheet is fixedly connected to the sensing circuit board.

Through the above solution, the screw housing rotates with the rotation of the drive device. When the limit position is reached, the limit switch reaches the position of the sensing block, so that the limit switch triggers the signal and controls the drive device to stop rotating; the shrapnel is fixedly connected to The inductive circuit board is mounted on the circuit board, so that the elastic piece realizes a stable physical connection, and the elastic piece is not easy to loosen.

Wherein, a support cover is installed on the screw housing, and a control circuit board is fixedly connected to the support cover; the controller and the fire control switch are fixedly arranged on the control circuit board.

Through the above solution, the controller and the fire switch can be arranged on a circuit board with other electronic components, which is convenient for circuit production.

Wherein, an upper shell is fixedly arranged on the supporting cover, and a fire adjusting knob is arranged on the upper shell, and the fire adjusting knob penetrates the upper shell and is connected to the fire adjusting switch.

Through the above solution, the fire control knob is arranged on the housing to facilitate the user to press. By pressing the fire control knob, the fire control knob presses the fire control switch on the control circuit board to start the calibration function of the current fire quantity.

Wherein, a display screen is further provided on the upper casing, and the display screen is electrically connected with the controller. Through the above scheme, the display screen can display the current fire quantity information.

Wherein, the sliding varistor circuit includes a first resistor and a second resistor arranged at intervals; the first resistor and the second resistor are electrically connected at one end on the same side, and the first resistor and the second resistor are both along the same side. The rotation direction of the rotating part of the gas stove knob is extended; the sliding contact includes a positive contact and a negative contact, the positive contact slides against the first resistor, and the negative contact slides against the second resistor.

Through the scheme, when the positive and negative contacts of the movable contact follow the gas spinner When the knob is twisted and slid, the lengths of the first resistance and the second resistance between the positive contact and the negative contact change, so that the first resistance and the second resistance are connected to the positive contact and the negative contact. The resistance value between the formed loops changes to realize the function of sliding varistor.

Compared with the prior art, this creation proposes a gas stove switch with a fire control device. In this proposal, the gas stove knob fixing part is fixedly arranged on the gas stove, and the gas stove knob rotation part drives the switch rotation axis to open or adjust The amount of fire used by the gas stove. The rotary part of the gas stove knob drives the sliding contact to slide on the circuit board. The different positions of the sliding make the resistance value on the sliding rheostat circuit different. A fixed standard voltage is added to the circuit, then the sliding rheostat circuit is based on Different resistance values produce different currents. In this way, when the rotating part of the gas stove knob is turned to different positions, the amount of fire used by the gas stove is different, and the current in the sliding rheostat circuit is also different, so that the amount of fire in different positions is compared with the current in the sliding rheostat circuit. The value is matched and calibrated, so that the knob can calibrate the current fire quantity of the gas stove to the required fire quantity according to the user's operation, so as to realize the intelligent control of the fire quantity.

10: Gas stove knob fixing part

20: Rotating part of gas stove knob

100: lower shell

110: Screw the shell

120: Support shell

130: upper shell

200: drive chainring

300: Drive

310: drive gear

320: drive motor

321: Motor bracket

330: Clutch Department

331: connection block

332: Drive Ring

333: Push Column

334: chute

335: first clutch ring gear

336: second clutch ring gear

337: spring

340: Positioning sleeve

341: positioning slot

342: Retaining Ring

350: installation slot

351: Clamp Ring

360: induction block

361: Limit switch

370: drive mount

380: Induction circuit board

400: Support cover

410: control circuit board

420: Battery bit

500: installation table

510: mounting hole

520: Shaft fixing seat

530: switch rotation axis

540: card hook

550: card connector

560: positioning surface

570: Positioning side

600: PCB board

610: first resistor

620: second resistor

630: Sliding contact

631: positive contact

632: negative contact

640: Shrapnel

641: Shrapnel Body

642: Bending Head

650: Controller

660: Fire switch

670: Fire Knob

680: Display

Figure 1 is a three-dimensional exploded view of the creation; Figure 2 is an embodiment diagram of the circuit board created on the gas stove knob; Figure 3 is an embodiment diagram of the created shrapnel applied to the gas stove knob; Figure 4 is The embodiment diagram of the installation table and the switch rotation axis used in this creation; Figure 5 is a block diagram of the circuit principle of this creation; Figure 6 is a three-dimensional assembly diagram of the creation.

This creation is described in detail with the accompanying drawings and embodiments as follows. The drawings used in the text are intended for illustration and auxiliary manual purposes only, and may not be the true proportions and accuracy after the implementation of the creation. Therefore, it should not be limited to the scope of the patent creation in actual implementation on the basis of the ratio and configuration relationship of the attached drawings, and it shall be stated first.

Please refer to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6, which are the three-dimensional exploded view of this creation, the implementation diagram of the circuit board of this creation on the knob of the gas stove, and the example of this creation The embodiment diagram of the application of the shrapnel on the knob of the gas stove, the embodiment diagram of the installation table of this creation and the use of the switch rotation shaft, the block diagram of the circuit principle and the three-dimensional combination diagram of this creation, the gas burner's fire volume adjustment device in this creation In a preferred embodiment, it includes: a gas stove knob rotating part 10 and a gas stove knob fixing part 20.

As shown in Figure 1 and Figure 2, this creation provides a gas stove switch with a fire control device, which is applied to a gas stove knob. The gas stove knob includes a gas stove knob fixing part 10 and a gas stove knob turning part 20. The gas stove knob fixing part 10 is used to be fixedly arranged on a gas stove, the gas stove knob rotation part 20 is rotatably arranged on the gas stove knob fixing part, and the gas stove knob rotation part is connected to the switch rotation shaft of the gas stove . The fire control device for a gas stove includes: a circuit board 600, the circuit board 600 is fixedly arranged on the knob fixing part of the gas stove, the circuit board 600 is provided with a sliding varistor circuit; the sliding contact of the sliding varistor circuit 630 is fixedly arranged on the rotary part of the gas stove knob.

In this way, the gas stove knob fixing part 10 is fixedly arranged on the gas stove, and the gas stove knob When the rotating part 20 drives the switch to rotate the shaft, it opens or adjusts the amount of fire of the gas stove. The rotary part 20 of the gas stove knob drives the sliding contact to slide on the PCB board 600. The different positions of the sliding make the resistance value of the sliding rheostat circuit different. By adding a fixed standard voltage to the circuit, the sliding change The resistance circuit generates different currents according to the resistance value. In this way, when the rotating part of the gas stove knob is turned to different positions, the amount of fire used by the gas stove is different, and the current in the sliding rheostat circuit is also different, so that the amount of fire in different positions is compared with the current in the sliding rheostat circuit. The value is matched and calibrated, so that the knob can calibrate the current fire quantity of the gas stove to the required fire quantity according to the user's operation, so as to realize the intelligent control of the fire quantity.

Intelligent control process with fire volume: If you need to turn on a low fire during cooking, after turning on the gas stove for the first time, turn the rotary part of the gas stove to a position where the user thinks it is a low fire, and then calibrate the position , Then in the follow-up process, a low-fire cooking time is needed, and the rotary part of the gas stove knob can be driven directly to this position for low-fire cooking. If you need to turn on a low heat and cook for a period of time during the cooking process, it will automatically turn off. After calibration, set the fire-off time. After the time is reached, you can drive the rotary part of the gas stove to rotate, thereby driving the switch rotating shaft to turn off the gas stove. For another example, during the cooking process, if a low fire is needed to turn a high fire, the rotary part of the gas stove knob can be driven to rotate to the calibrated position, thereby driving the switch rotating shaft to rotate to control the gas output to low fire. There are many other smart control methods, not to list them all.

As shown in FIG. 5, the sliding contact 630 is electrically connected to a controller 650, and the controller 650 is electrically connected to a fire control switch 660. As shown in FIG. 1, the fire control switch 660 is arranged on the gas stove knob drive.部20上。 Section 20 on. When the user turns the gas knob to the appropriate With the fire quantity position, the user turns on the fire control switch, and the fire control switch sends a start signal to the controller. The controller detects the current in the sliding rheostat circuit at the current position and calculates the current value corresponding to the fire quantity at this time. Calibration record. It is easy to think that the fire control switch can also be set as a voice-activated switch.

By cooperating with the fire control switch, a variety of operation methods can be realized. For example, after the gas furnace is ignited by the gas furnace knob transmission part, press and hold the fire control switch for 3S to enter the setting mode, and then the gas furnace knob transmission part will rotate until the user feels The appropriate fire position, namely the low fire position, press the fire switch again to confirm that the position is the calibration position of the small fire amount. When a small fire amount is required for fire supply, the gas stove knob transmission part can automatically rotate to this position. position. In addition, the demonstration mode can also be realized, that is, when you press and hold the fire control switch for 5S to enter the demonstration mode, the gas stove knob transmission part rotates to the set low fire position, and the user directly observes the fire quantity. If not satisfied, you can restart it. set up. Similarly, the medium fire mode can be set in this way, and the voice prompt function can be added during the setting process. In addition, the design of the driving device of the gas stove through the knob transmission part of the gas stove can control the clockwise and counterclockwise bidirectional rotation of the knob transmission part of the gas stove. In this way, it can realize the control that the large fire volume is automatically transferred to the small fire volume, and the control that the small fire volume automatically transfers to the large fire volume can also be realized.

In this embodiment, as shown in FIG. 2, the sliding contact of the sliding varistor circuit is an elastic piece 640, and the elastic piece 640 slides against the PCB board 600. The elastic piece 640 has a certain elasticity, and the elastic force enables the elastic piece 640 to stably abut against the PCB board 600, so that the sliding contacts on the sliding rheostat circuit can be in stable contact, and it is not easy to disconnect the sliding rheostat circuit. The shrapnel 640 includes a shrapnel body 641 and a bending head 642 located at the lower end of the shrapnel body 641. The sheet body 641 is arranged obliquely to the upper surface of the PCB board, the bending head 642 slides against the PCB board, and smooth sliding movement is realized by the bending head 642. The shrapnel 640 is a metal shrapnel for conducting electricity.

The sliding varistor circuit can be arranged in various forms. As shown in FIG. 5, the present invention provides an embodiment. The sliding varistor circuit includes a first resistor 610 and a second resistor 620 arranged at intervals; the first resistor 610 and the One end of the second resistor 620 located on the same side is electrically connected. Both the first resistor 610 and the second resistor 620 extend along the rotation direction of the gas knob rotating part; the sliding contact 630 includes a positive contact 631 and The negative contact 632, the positive contact 631 slides against the first resistor 610, and the negative contact 632 slides against the second resistor 620. When the positive contact 631 and the negative contact 632 of the movable contact slide with the twisting of the gas knob rotating part 20, the first resistor 610 and the second resistor 620 between the positive contact 631 and the negative contact 632 are The length changes, so that the resistance value between the first resistor 610 and the second resistor 620 and the loop composed of the positive contact 631, the negative contact 632, and the controller 650 changes, so as to realize the function of sliding resistance. It is easy to think that the circuit that changes the resistance of the loop during the sliding process can all be the sliding varistor circuit in this creation.

As shown in Fig. 1 and Fig. 2, in the specific structure: the above-mentioned gas stove knob fixing part 10 includes: a lower shell 100, which is adhesively fixed on the surface of the stove. For the convenience of structure description, it is installed and used as a switch The direction at the time is a reference. A through hole is opened on the lower surface of the lower housing 100, and a drive gear plate 200 is fixedly arranged in the lower housing 100. The drive gear plate 200 is clamped and fixed to the lower housing 100 through a boss or a special-shaped surface provided on the outer surface. , The end surface of the drive gear plate 200 is provided with teeth, and the teeth on the drive gear plate 200 form a circle around the center Array distribution, the circular array can be a complete circular array or a circular array with any angle, which is set according to the realization design. A through hole is opened in the middle of the drive gear plate 200, that is, the center of the circumferential array of teeth is a through hole.

As shown in Figure 1, Figure 2, and Figure 3, the circuit board 600 is fixedly connected to the drive ring 200, the circuit board is set in an arc shape, and the drive device provides rotational power for the rotation of the rotary part of the gas stove knob to make the gas The rotary part of the furnace knob can be rotated relative to the fixed part of the gas knob, the circuit board is fixedly connected with the drive gear plate, so that the circuit board is fixed and does not rotate, and the arc-shaped circuit board 600 is arranged to make the outline of the circuit board It is matched with the contour of the drive gear plate, and is easy to install.

The gas stove knob rotating part 20 includes a driving device 300 arranged in a circumferential array of teeth, as shown in FIG. 3, the driving device 300 is used to generate power after being energized, and the driving device 300 includes a driving gear 310, The driving gear 310 meshes with the driving ring gear 200. When the driving device 300 is energized when the set conditions are reached, the driving device 300 drives the driving gear 310 to rotate. Since the driving gear plate 200 is fixed, that is, the gas stove knob fixing part 10 is fixed on the gas stove, then the driving device 300 The power causes the driving device 300 to rotate around the driving ring gear 200, so that the gas stove knob rotating part 20 realizes the rotation function through the rotation of the driving device 300. The switch rotation shaft 530 of the stove is fixedly connected with the driving device 300, and the driving device 300 rotates to turn the switch rotation shaft 530 of the stove, so as to realize the function of intelligently turning off the stove after timing.

As shown in Fig. 3, the driving device 300 in this solution is located in the middle position of the driving gear 310, that is, the driving device 300 is arranged in the outer contour of the driving gear plate 200 in the horizontal direction, so that the structure of the stove switch is in the horizontal direction. The area becomes smaller, so that the stove The structure of the switch becomes smaller, the structure is compact, and it is more convenient to use.

As shown in Figures 1 and 2, the gas stove knob rotation part 20 further includes: a screw housing 110 is arranged above the drive gear plate 200, and a support is provided on the lower surface of the screw housing 110 Housing 120, the lower end of the support housing 120 abuts against the drive gear plate 200, and the screw housing 110 is provided with a drive device 300 mounting position for fixing the drive device 300, as shown in FIG. 3 As shown, the driving device 300 in this embodiment includes a driving motor 320. The driving motor 320 is arranged on the motor support 321. The driving motor 320 is arranged along the radial direction of the driving gear plate 200, and the driving motor 320 A clutch portion 330 is connected to the rotating shaft, and the clutch portion 330 is connected to the drive gear 310. After the drive gear 310 penetrates the screw housing 110, the teeth on it mesh with the teeth on the drive gear wheel 200. The clutch portion 330 is connected to the driving gear 310 when the driving motor 320 rotates, and is disengaged from the driving gear 310 when the driving motor 320 rotates in the reverse direction. When the driving motor 320 rotates in the forward direction, the clutch part 330 makes the driving gear 310 fixedly connect with the shaft of the driving motor 320, so that the driving motor 320 rotates, driving the driving gear 310 to rotate, so that the driving device 300 is in the inner area of the driving gear plate 200. It moves around the drive chain 200. When the driving motor 320 rotates in the reverse direction, the clutch part 330 disengages the driving gear 310 from the shaft of the driving motor 320, so that the rotation of the driving gear 310 has no effect on the driving motor 320, so that when the stove is turned on, the switch rotates The shaft 530 and the driving gear 310 move on the driving gear wheel 200 without driving the rotating shaft of the driving motor 320 to avoid ring damage to the driving motor 320.

As shown in FIG. 3, the clutch part 330 is provided in various forms, such as a common friction clutch. In this embodiment, the clutch part 330 includes a fixed arrangement on the drive motor. The connecting block 331 on the rotating shaft of 320 is sleeved with a driving ring 332 along the axial direction of the connecting block 331, and a pushing column 333 arranged in the radial direction on the connecting block 331 is provided with a chute 334 on the outer surface of the driving ring 332 , The pushing column 333 is inserted into the chute 334 to slide, so that the connecting block 331 rotates, driving the pushing column 333 to rotate, and the pushing column 333 rotates in the chute 334. The two ends of the chute 334 are respectively located at the At the two axial ends of the driving ring 332, the rotating pushing column 333 drives the driving ring 332 to perform a short axial movement through the chute 334.

A first clutch ring gear 335 is fixedly connected to one end of the drive ring 332 in the axial direction. The first clutch ring gear 335 is arranged at an end away from the drive motor 320. The drive gear 310 is fixedly provided with The first clutch ring gear 335 is matched with the second clutch ring gear 336. When the driving ring 332 moves toward the driving gear 310 by the rotation of the driving motor 320, the driving ring 332 drives the first clutch ring gear 335 to move toward the driving gear 310, and the teeth on the first clutch ring gear 335 and the second clutch ring gear 336 The upper teeth abut against each other.

The clutch part 330 is also provided with a spring 337, which is arranged between the first clutch ring gear 335 and the second clutch ring gear 336, and the elastic force of the spring 337 is used to push away from the drive motor when the drive motor reverses. The first clutch ring gear 335 and the second clutch ring gear 336 are described. In this way, the drive motor 320 rotates. After the drive ring 332 moves in the axial direction, the drive ring 332 first moves axially and compresses the spring 337. When the drive ring 332 is moved to the limited position, the drive ring 332 cannot move axially. In this way, the drive ring 332 is rotated. The rotating drive ring 332 drives the first clutch ring gear 335 to move. The first clutch ring gear 335 clamps the second clutch ring gear 336, thereby driving the second clutch ring gear 336 to rotate. Rotating second clutch tooth The ring 336 drives the driving gear 310 to rotate to realize the transmission process. When the drive motor 320 rotates in the reverse direction, the thrust of the spring 337 helps to push the drive ring 332 to move in the axial direction. The thrust causes the pushing column 333 to slide in the chute 334, so that the first clutch ring gear 335 is moved away. The second clutch ring gear 336. In this way, the rotating shaft of the driving motor 320 is separated from the driving gear 310 to realize the clutch function.

A positioning sleeve 340 is clamped and fixed on the screw housing 110, a positioning groove 341 is formed on the positioning sleeve 340, and a retaining ring 342 is integrally formed between the driving ring 332 and the first clutch ring gear 335 The retaining ring 342 is slidably arranged in the positioning groove 341. The driving ring 332 is restricted by the positioning groove 341 and the retaining ring 342. When the driving ring 332 advances in the axial direction, when the retaining ring 342 reaches the inner surface of one side of the positioning groove 341, the driving ring 332 cannot move in the axial direction. Thus, the rotating shaft of the driving motor 320 is driven to rotate.

There is another form of arrangement of the spring 337: the spring 337 is inserted into the positioning groove 341, one end of the spring 337 abuts against the inner wall of the positioning groove 341 on one side close to the drive motor, and the other end abuts against the inner wall of the positioning groove 341. 342 on the retaining ring. In this way, the elastic force of the spring 337 makes the first clutch ring gear 335 have a tendency to approach the second clutch ring gear 336. When the driving motor rotates forward, the spring 337 pushes the first clutch ring gear 335 to be close to the second clutch gear ring. The ring 336 can synchronize the rotation speed of the motor with the rotation speed of the drive ring through the assistance of the spring. The spring 337 is compressed when the drive motor reverses, and when the drive motor stops rotating, the spring is in a compressed state, and its thrust is not enough to push the drive ring to slide alone. Realize the disengagement function of the clutch part.

The screw housing 110 is provided with a gear hole, the gear hole penetrates the screw housing, the drive gear 310 is rotated in the gear hole, and the drive gear 310 penetrates the screw housing through the gear hole Body 110, with mounting grooves integrally formed on both sides of the gear hole 350. The front end of the driving gear 310 is integrally formed with a collar 351, and the collar 351 is located in the mounting groove 350. When the driving gear 310 rotates, the collar 351 is driven by the driving gear 310 to rotate in the mounting groove 350.

As shown in Figures 1 and 3, the drive gear plate 200 is provided with an induction block 360, which is a boss on the end surface of the drive gear plate 200 and is arranged on the circumference formed by the circumferential array of teeth. An induction circuit board 380 is fixedly arranged on the movable housing 110, and the induction circuit board 380 is electrically connected to the control circuit board 410, and a finite element switch 361 is fixed on the induction circuit board 380. The limit element switch 361 is used to rotate to the position of the sensing block 360 and send a control signal. When the driving device 300 rotates, it drives the screw housing 110 to rotate. When the screw housing 110 rotates, it drives the limit switch 361 to rotate. When the limit switch 361 rotates to the position of the sensing block 360, a signal is sent to drive the motor 320 stops rotating.

The elastic piece 640 is fixedly connected to the sensing circuit board 380 by a screw or a card, so that the elastic piece 640 realizes a stable physical connection, and the elastic piece 640 is not easy to loosen.

As shown in FIG. 1, the gas stove knob turning part 20 further includes: a driver mounting frame 370 provided on the screw housing 110, and the driver mounting frame 370 is used to fix the driving device 300 on the screw housing 110. on. A support cover 400 is installed on the screw housing 110, the support cover 400 is buckled on the upper surface of the screw housing 110, an inner cavity is arranged in the support cover 400, and the driving device 300 is arranged in In the inner cavity of the support cover 400, a control circuit board 410 is fixedly connected to the support cover 400, and the control circuit board 410 is fixed on the top of the inner cavity of the support cover 400, and a battery position is also opened on the support cover 400 420. The battery position 420 is used to place a battery to control the circuit board 410 and drive The motor 320 supplies power. The controller 650 and the fire control switch 660 are fixedly arranged on the control circuit board 410. The controller 650 and the fire switch 660 can be arranged on a circuit board with other electronic components to facilitate circuit production.

As shown in Figures 1 and 6, the gas stove knob rotation part 20 further includes: an upper shell 130 sleeved on the outside of the support cover 400, the upper shell 130 is set in a square shape, and the upper shell 130 As the shell of the stove switch, the screw housing 110 protects the supporting cover 400. When the switch is manually turned on, the screw housing 110 is driven to move by screwing the upper housing 130. The upper housing is provided with a fire control knob 670, the fire control knob 670 penetrates the upper housing and is connected to the fire control switch, and the pressure control knob is arranged on the housing to facilitate the user to press or/and Rotate, by pressing or/and rotating the fire control knob, the fire control knob presses the fire control switch on the control circuit board to start the calibration function of the current fire quantity.

Other buttons can also be provided, and control instructions are sent to the control circuit board 410 through the buttons, such as timing settings, and the control circuit can also implement functions such as voice control and temperature detection.

As shown in FIGS. 1 and 5, a display screen 680 is further provided on the upper housing 130, and the display screen 680 is electrically connected to the controller 650. The display screen 680 can display current fire volume information, such as the size of the fire volume, the set time, and so on.

As shown in FIG. 4, the screw housing 110 is provided with a mounting platform 500, specifically a mounting platform 500 is integrally formed on the lower surface of the screw housing 110, and the mounting platform 500 penetrates the drive chainring. 200. The mounting table 500 is provided with a mounting hole 510, and a shaft fixing seat 520 is detachably connected to the mounting hole 510, and the shaft fixing seat 520 is used to connect the switch rotation shaft 530 of the stove. Through the rotation of the screw housing 110, the mounting table 500 is driven, the shaft fixing seat 520 is driven by the mounting table 500, and the shaft fixing seat 520 is driven by the shaft fixing seat 520. The switch rotating shaft 530 is moved. In this way, the casing 110 is screwed to drive the switch rotation shaft 530 of the stove.

As shown in Figures 2 and 4, the mounting table 500 can be configured in various forms. In this embodiment, a hook 540 is provided on the side of the mounting table 500, and the hook direction of the hook 540 faces the mounting hole 510. A plurality of positioning surfaces 560 with different directions are provided on the side of the mounting platform 500, and the shaft fixing seat 520 is provided with a clamping position 550 corresponding to the 540 positions of the clamping hook, and the shaft fixing seat 520 is A plurality of positioning side surfaces 570 matched with the positioning surface 560 are provided. That is, the horizontal cross section of the mounting platform 500 is octagonal, wherein the surfaces corresponding to the two opposite sides are provided with clamping hooks 540, and the surfaces corresponding to the sides of the two adjacent sides of the clamping hook 540 are positioning surfaces 560, respectively. , The cross section of the corresponding shaft fixing seat 520 along the horizontal direction is octagonal, and the surfaces corresponding to the two adjacent groups of opposite sides are provided with the clamping position 550 that matches the clamping hook 540, and the other two groups of opposite sides are provided with a clamping position 550 matching the clamping hook 540. The corresponding surface is the positioning side surface 570 that cooperates with the positioning surface 560. In this way, two groups are provided on the side of the clamping position 550, which are matched with different clamping positions 550 through the clamping hook 540, so as to adjust the positions of the screw housing 110 and the stove.

The shaft fixing seat 520 is set corresponding to the switch rotating shaft 530. The switch rotating shaft 530 on the market has two specifications, so the shaft fixing seat 520 is provided with two specifications, and the two shaft fixing seats 520 can be compatible with each other. The mounting table 500 matches. In this way, when the stove needs to be turned on, the upper housing 130 is screwed to drive the screw housing 110 to rotate, the mounting table 500 is driven to rotate, the shaft fixing seat 520 is driven to rotate, and the switch rotation shaft 530 is driven to rotate, so as to turn on the stove. After the timing reaches the set time, the driving device 300 is activated to drive the screw housing 110 to rotate, and the stove can be turned off.

Advantages of this creation:

1). The size is reduced, and it is practical and meets the needs of users.

2). Without changing the stove, the installation is simple and convenient.

3). The best cooking time can be adjusted according to the cooking ingredients.

4). Rotate the gas stove switch, the protection will start automatically.

5). Automatically turn off the gas.

6). Power saving and durable.

7). When the cooking time is over, a buzzer will sound to remind you.

8). It can be controlled by AI intelligent voice.

9). The current fire quantity of the gas stove can be calibrated to the required fire quantity according to the user's operation, and the fire quantity can be controlled intelligently.

Looking at the above, it can be seen that this creation is a fire control device for gas stove switch, but it has better use efficiency than the conventional ones, and its device and structure are not complicated and cumbersome; however, the overall operation concept is rich in implementation know-how. It is an application that has not been seen in products of the same type at present, so sincerely, it has met the requirements of "progressiveness and practicality" in a new patent application. I sincerely request your office to approve this creation patent application to encourage creation and make it convenient.

The above-mentioned embodiments are only to illustrate the technical ideas and characteristics of this creation, and their purpose is to enable those who are familiar with the art to understand the content of this creation and implement them accordingly. When they cannot be used to limit the patent scope of this creation, That is to say, all equal changes or modifications made in accordance with the spirit of this creation should still be covered by the scope of the patent of this creation.

20: Rotating part of gas stove knob

670: Fire Knob

130: upper shell

680: Display

420: Battery bit

400: Support cover

660: Fire switch

410: control circuit board

310: drive gear

370: drive mount

300: Drive

380: Induction circuit board

361: Limit switch

630: Sliding contact

110: Screw the shell

500: installation table

10: Gas stove knob fixing part

600: circuit board

360: induction block

200: drive chainring

Claims (10)

A fire quantity adjusting device for a gas stove switch, which is used to be arranged on a gas stove knob. The gas stove knob includes a gas stove knob fixing part and a gas stove knob rotating part, and is characterized in that the gas stove fire quantity adjusting device It includes: a circuit board, the circuit board is fixedly arranged on the fixed part of the gas stove knob, the circuit board is provided with a sliding varistor circuit; the sliding contact of the sliding varistor circuit is fixedly arranged on the gas stove Knob rotation part. The fire control device for gas stove switch according to claim 1, wherein the sliding contact is electrically connected with a controller, the controller is electrically connected with a fire control switch, and the fire control switch is set On the knob transmission part of the gas stove. The device for adjusting the amount of fire for opening a gas stove according to claim 2, wherein the sliding contact of the sliding varistor circuit is an elastic sheet, and the elastic sheet slides against the circuit board. The fire control device for gas stove switch according to claim 3, wherein the shrapnel comprises: a shrapnel body, the shrapnel body and the upper surface of the circuit board are arranged obliquely; and the shrapnel body is connected to the upper surface of the circuit board; The bending head, the bending head slides against the circuit board. The fire quantity adjusting device for gas stove switch according to claim 4, characterized in that the gas stove knob fixing part comprises: a drive sprocket, and the teeth on the drive sprocket are distributed in a circular array around the center; The rotary knob of the gas stove includes: a driving device located in the circumferential array of teeth and used to generate power after being energized; the driving device includes a driving gear, the driving gear is meshed with the driving ring; the circuit board is The drive gear plate is fixedly connected. The fire control device for gas stove switch according to claim 5, characterized in that the gas stove knob rotation part further comprises: a screw housing located above the drive chainring and used to fix the drive device, An induction circuit board is fixedly arranged on the screw housing; the elastic sheet is fixedly connected to the induction circuit board. The fire control device for gas stove switch according to claim 6, wherein a support cover is installed on the screw housing, and a control circuit board is fixedly connected to the support cover; the controller and the control circuit board are fixedly connected to the support cover. The fire control switch is fixedly arranged on the control circuit board. The fire quantity adjusting device for gas stove switch according to claim 7, characterized in that an upper shell is fixedly arranged on the support cover, and a fire adjusting knob is provided on the upper shell, and the fire adjusting knob penetrates The upper shell is connected to the fire control switch. The fire quantity adjusting device for gas stove switch according to claim 8, characterized in that a display screen is further provided on the upper casing, and the display screen is electrically connected to the controller. The fire control device for gas stove switch according to claim 1, wherein the sliding varistor circuit includes a first resistor and a second resistor arranged at intervals, and the first resistor and the second resistor are located at One end on the same side is electrically connected; the first resistor and the second resistor are both extended along the rotation direction of the rotating part of the gas knob; the sliding contact includes a positive contact and a negative contact, the The positive electrode contact slips against the first resistor, and the negative electrode contact slips against the second resistor.

Images