Automatic knob mechanism and gas stove

Abstract

The utility model provides an automatic knob mechanism and a gas stove, and relates to the technical field of kitchen appliances. The automatic knob mechanism comprises a rotating motor, a speed reduction assembly and a knob, the output end of the rotating motor is in transmission connection with the speed reducing assembly; the deceleration assembly is in transmission connection with the knob; the rotary motor drives the knob to rotate through the deceleration assembly; the speed reduction assembly is arranged between the rotating motor and the knob, so that the torque of the motor can be increased, the energy consumption of the motor is reduced, the service life of the motor is prolonged, the later use and maintenance cost is reduced, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to an automatic knob mechanism and a gas stove. Background Technology

[0002] Most cooktops on the market currently lack a knob reset function, requiring manual reset by the user after automatic shutdown. Cooktops with a reset function typically control the knob directly via a rotary motor. These motors are often bulky, have high power consumption, require frequent battery replacements, have short lifespans, and result in high maintenance and operating costs, leading to a poor user experience. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic knob mechanism and a gas stove. By setting a speed reduction component between the rotary motor and the knob, the motor torque can be increased, thereby reducing the motor's energy consumption, increasing the motor's service life, reducing the cost of later use and maintenance, and improving the user experience.

[0004] In a first aspect, this utility model provides an automatic knob mechanism, comprising: a rotary motor, a reduction gear assembly, and a knob;

[0005] The output end of the rotary motor is connected to the reduction gear assembly for transmission.

[0006] The speed reduction assembly is connected to the knob drive;

[0007] A rotary motor is used to drive the knob to rotate via a reduction gear assembly.

[0008] In some preferred embodiments of this utility model, the deceleration assembly includes: a first gear and a second gear; wherein the diameter of the first gear is smaller than the diameter of the second gear;

[0009] The output end of the rotary motor is connected to the first gear transmission;

[0010] The first gear meshes with the second gear;

[0011] The second gear is connected to the knob via a transmission mechanism.

[0012] In some preferred embodiments of this utility model, the first gear is an external gear and the second gear is an internal gear;

[0013] A mounting plate is provided at one end of the second gear, and the knob is connected to the mounting plate in a transmission manner.

[0014] In some preferred embodiments of this utility model, the reduction assembly further includes: a gear set; the gear set includes: a plurality of gears connected in transmission;

[0015] The first gear and the second gear are connected by a gear set transmission.

[0016] In some preferred embodiments of this utility model, the gear set includes: a third gear and a fourth gear that are connected in transmission; wherein; the diameter of the third gear is larger than the diameter of the fourth gear;

[0017] The first gear is connected to the third gear in a transmission connection;

[0018] The fourth gear is connected to the second gear in a transmission connection.

[0019] In some preferred embodiments of this invention, the third gear and the fourth gear are coaxial.

[0020] In some preferred embodiments of this utility model, the first gear, the third gear, the fourth gear, and the second gear mesh sequentially.

[0021] In some preferred embodiments of this utility model, the second gear and the fourth gear are coaxial; the third gear is provided with internal teeth and external teeth;

[0022] The external teeth of the first gear and the third gear mesh.

[0023] The internal teeth of the fourth gear mesh with those of the third gear.

[0024] In some preferred embodiments of this invention, the diameter of the second gear is the same as the diameter of the third gear.

[0025] Secondly, this utility model provides a gas stove, which includes: a controller and an automatic knob mechanism as described above;

[0026] The controller is electrically connected to the automatic knob mechanism.

[0027] This utility model brings the following beneficial effects:

[0028] This utility model provides an automatic knob mechanism and a gas stove. The automatic knob mechanism includes a rotary motor, a reduction gear assembly, and a knob. The output end of the rotary motor is connected to the reduction gear assembly. The reduction gear assembly is connected to the knob. The rotary motor drives the knob to rotate through the reduction gear assembly. By setting the reduction gear assembly between the rotary motor and the knob, the motor torque can be increased, thereby reducing the motor's energy consumption, increasing the motor's service life, reducing the cost of later use and maintenance, and improving the user experience. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A schematic diagram of an automatic knob mechanism provided for an embodiment of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of a deceleration component provided in an embodiment of the present utility model;

[0032] Figure 3 A top view of another deceleration component provided in an embodiment of this utility model;

[0033] Figure 4 A front view of another automatic knob mechanism provided in an embodiment of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of a gas stove provided in an embodiment of the present utility model.

[0035] Icons: 1000 - Reduction gear assembly; 2000 - Rotary motor; 3000 - Knob; 100 - First gear; 200 - Second gear; 210 - Mounting plate; 300 - Third gear; 400 - Fourth gear; 10 - Automatic knob mechanism; 20 - Controller; 30 - Gas stove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] Example 1

[0044] This utility model embodiment provides an automatic knob mechanism 10, see [link]. Figure 1 The schematic diagram shown in this embodiment of the present invention provides an automatic knob mechanism 10, which includes: a rotary motor 2000, a reduction gear assembly 1000, and a knob 3000; the output end of the rotary motor 2000 is connected to the reduction gear assembly 1000; the reduction gear assembly 1000 is connected to the knob 3000; the rotary motor 2000 is used to drive the knob 3000 to rotate through the reduction gear assembly 1000.

[0045] Specifically, the rotary motor 2000 is the power source, and its output end is connected to the reduction gear 1000. Through this connection, the rotary motor 2000 can transmit its rotational power to the reduction gear 1000.

[0046] The main function of the reduction gear 1000 is to receive power from the rotary motor 2000 and convert this high-speed rotational power into low-speed, high-torque rotational power through an internal mechanical structure. This conversion process enables the knob 3000 to rotate in a more stable and precise manner.

[0047] Knob 3000 is the final actuating component. It is connected to the reduction gear assembly 1000 and is driven to rotate by the reduction gear assembly 1000. The rotation of knob 3000 can be used to control the switching on and off of various devices, adjust the working status of the devices, etc., and has a very wide range of applications.

[0048] In summary, this automatic knob mechanism 10, through the organic combination of the rotary motor 2000, the reduction gear 1000 and the knob 3000, achieves precise control of the knob 3000, greatly improving the ease of use and work efficiency of the equipment.

[0049] This utility model provides an automatic knob mechanism 10, which includes: a rotary motor 2000, a reduction gear assembly 1000, and a knob 3000; the output end of the rotary motor 2000 is connected to the reduction gear assembly 1000; the reduction gear assembly 1000 is connected to the knob 3000; the rotary motor 2000 is used to drive the knob 3000 to rotate through the reduction gear assembly 1000; by setting the reduction gear assembly 1000 between the rotary motor 2000 and the knob 3000, the motor torque can be increased, thereby reducing the motor's energy consumption, increasing the motor's service life, reducing the cost of later use and maintenance, and improving the user experience.

[0050] Example 2

[0051] Based on the above embodiments, this utility model provides another automatic knob mechanism 10, focusing on describing various internal structures of the deceleration assembly 1000.

[0052] In some preferred embodiments of this utility model, the reduction assembly 1000 includes: a first gear 100 and a second gear 200; wherein the diameter of the first gear 100 is smaller than the diameter of the second gear 200; the output end of the rotary motor 2000 is connected to the first gear 100 in a transmission connection; the first gear 100 meshes with the second gear 200; and the second gear 200 is connected to the knob 3000 in a transmission connection.

[0053] Specifically, the reduction assembly 1000 increases the output torque by reducing the input speed, thereby meeting the needs of specific application scenarios. This embodiment of the invention provides a reduction assembly 1000 comprising a first gear 100 and a second gear 200, wherein the diameter of the first gear 100 is smaller than that of the second gear 200.

[0054] The first gear 100 is usually referred to as the pinion or driving gear, and its diameter is smaller than that of the second gear 200, which is called the large gear or driven gear. When the pinion rotates, it can drive the large gear at a higher speed, but due to the difference in gear size, the rotational speed of the large gear will be relatively lower, thus achieving a deceleration effect.

[0055] The rotary motor 2000 is the power source for the entire system, and its output end is typically equipped with a pinion or directly connected to a pinion. This connection can be a direct shaft-to-shaft connection, or it can be achieved through a key connection, fastening screws, or other mechanical interfaces. When the rotary motor 2000 starts, the pinion at its output end begins to rotate, which in turn drives the first gear 100, which meshes with it, to rotate.

[0056] The first gear 100 has a smaller diameter, and when it rotates, it can drive the larger second gear 200 with less torque. This combination of large and small gears not only reduces speed but also amplifies torque due to the lever principle. This meshing is usually external, where the teeth of the two gears mesh together, but it can also be internal, where the smaller gear is located inside the larger gear.

[0057] The connection between the second gear 200 and the knob 3000 can be direct or indirect, via other mechanical components such as connecting rods or worm gears. This connection ensures that the knob 3000 accurately reflects the motion state of the second gear 200, while also allowing the user to fine-tune the output.

[0058] This speed reduction assembly 1000 is widely used in various mechanical devices, such as automated equipment, vehicles, and household appliances. For example, in the opening and closing mechanism of automatic curtains, the speed reduction assembly 1000 can smoothly control the raising and lowering speed of the curtains; in the power steering system of automobiles, the speed reduction assembly 1000 can increase the torque assistance when the driver is steering, reducing the driving burden.

[0059] Furthermore, in some preferred embodiments of this utility model, see... Figure 2 The schematic diagram of a speed reduction assembly provided in this embodiment of the present invention is shown. The first gear 100 is an external gear, and the second gear 200 is an internal gear. A mounting plate 210 is provided at one end of the second gear 200, and the knob 3000 is connected to the mounting plate 210 in a transmission manner.

[0060] Specifically, the first gear 100 is an external gear, and the second gear 200 is an internal gear, making the reduction assembly 1000 more compact. The meshing of the internal and external gears typically provides a larger transmission ratio, and due to the enclosing structure of the internal gear, it has a larger number of meshing teeth, resulting in smoother transmission and lower noise.

[0061] A mounting plate 210 is provided at one end of the second gear 200. This mounting plate 210 may be used to fix the second gear 200 and also serves as an interface for connection with the knob 3000. Through the transmission connection between the knob 3000 and the mounting plate 210, precise control of the position or working state of the second gear 200 can be achieved.

[0062] The design of internal gears reduces the space occupied by the entire gear transmission system, which is particularly advantageous for space-constrained applications. Due to the meshing characteristics of internal and external gears, the impact force and noise during transmission are reduced, improving the overall smoothness of motion.

[0063] Furthermore, in some preferred embodiments of the present invention, the reduction assembly 1000 further includes: a gear set; the gear set includes: a plurality of gears connected in transmission; the first gear 100 and the second gear 200 are connected in transmission through the gear set.

[0064] Specifically, a gear set typically consists of multiple meshing gears that sequentially transmit torque and speed. By appropriately designing the size and number of teeth of the gears, different transmission ratios can be achieved, thereby adjusting the output speed and torque. The first gear 100 serves as the input gear, driving the first gear in the gear set. The motion is then transmitted to the last gear, the second gear 200, through sequential meshing within the gear set. The rotational speed and torque of each gear are adjusted accordingly based on the number of teeth and the gear's size. Larger gears are slower but have higher torque, while smaller gears have the opposite effect.

[0065] By combining gears with different numbers and sizes of teeth within a single gear set, various transmission ratios can be easily achieved to meet diverse application requirements. For example, in applications requiring extremely low-speed, high-torque output, this can be achieved by adding a reduction stage to the gear set. Because multiple gears share the transmission load, the load on each gear is more evenly distributed, reducing wear on individual gears and extending the overall lifespan of the gear set. Multi-gear transmission systems offer higher reliability compared to single-gear systems. Even if individual gears fail, the system can still maintain basic operation.

[0066] Furthermore, in some preferred embodiments of this utility model, see... Figure 3 The diagram shown is a top view of another deceleration component provided in this embodiment of the present invention. Figure 4The diagram shows a front view of another automatic knob mechanism provided in this embodiment of the present invention. The gear set includes a third gear 300 and a fourth gear 400 that are connected in a transmission manner; wherein the diameter of the third gear 300 is larger than the diameter of the fourth gear 400; the first gear 100 is connected in a transmission manner to the third gear 300; and the fourth gear 400 is connected in a transmission manner to the second gear 200.

[0067] Specifically, the first gear 100 is connected to the third gear 300. Since the diameter of the third gear 300 is larger than that of the fourth gear 400, this configuration is typically used for initial deceleration, reducing the high input speed to a medium level. The fourth gear 400 is connected to the second gear 200, which typically further reduces the rotational speed while increasing the output torque.

[0068] The design should ensure that every tooth of one gear has an equal opportunity to mesh with every tooth of the other meshing gear. This improves gear lifespan and transmission stability. Optimizing gear profile parameters can enhance the stability of the meshing gear set and reduce meshing impacts caused by gear deformation under load and manufacturing / assembly errors.

[0069] Furthermore, in some preferred embodiments of this utility model, the first gear 100, the third gear 300, the fourth gear 400, and the second gear 200 mesh sequentially.

[0070] Specifically, the first gear 100 drives the third gear 300, which is typically used for initial deceleration, especially when the diameter of the third gear 300 is large, it can significantly reduce speed and increase torque. The fourth gear 400 then drives the second gear 200, further adjusting the speed and torque. If the diameter of the second gear 200 is larger than that of the fourth gear 400, it will further reduce speed and increase torque.

[0071] Furthermore, in some preferred embodiments of this utility model, the third gear 300 and the fourth gear 400 are coaxial.

[0072] By configuring gears of different diameters on the same shaft, the output speed can be adjusted by the gear ratio without changing the shaft rotational speed. Coaxial gears can effectively transmit torque while reducing energy loss caused by excessively long drive chains.

[0073] The coaxial design reduces the space occupied by the entire gear set, which is particularly advantageous for space-constrained applications. The reduction in additional support structures and materials results in a lighter overall weight, beneficial for portable devices or aerospace components.

[0074] Furthermore, the first gear 100 is connected to the motor, and its angular velocity and torque are equal to those of the motor. The second gear 200 is connected to the stove knob 3000, and the angular velocity and torque of the stove knob 3000 are equal to those of the second gear 200. Based on the formula for gear torque and rotational speed, the relationship between the rotational speed and torque of the motor and the stove knob 3000 can be obtained, where T represents gear torque, N represents gear rotational speed, Z represents the number of gear teeth, and η represents gear transmission efficiency. The motor's torque and rotational speed are equal to those of the first gear 100, and the stove knob 3000's torque and rotational speed are equal to those of the second gear 200. The derived formula is as follows:

[0075] T3=η×(Z3 / Z1)×T1; T4=T3; T2=η×(Z2 / Z4)×T4;

[0076] N3=(Z1 / Z3)×N1; N4=N3; N2=(Z4 / Z2)×N4;

[0077] N2 = (Z1 / Z3) × (Z4 / Z2) × N1;

[0078] Wherein, T1 is the torque of the first gear 100, T2 is the torque of the second gear 200, T3 is the torque of the third gear 300, T4 is the torque of the fourth gear 400, Z1 is the number of teeth of the first gear 100, Z2 is the number of teeth of the second gear 200, Z3 is the number of teeth of the third gear 300, Z4 is the number of teeth of the fourth gear 400, N1 is the rotational speed of the first gear 100, N2 is the rotational speed of the second gear 200, N3 is the rotational speed of the third gear 300, and N4 is the rotational speed of the fourth gear 400.

[0079] Through the derivation of the above formula, it can be seen that the motor torque is significantly increased after the gear set is engaged. The increase in torque can also be controlled by adjusting the number of teeth on the gears. This means that compared to directly using a motor to drive the knob 3000, a motor with lower power and torque can be used to meet the functional requirements. This also reduces the power consumption of the stove and increases the lifespan of the motor.

[0080] Furthermore, in some preferred embodiments of this utility model, the second gear 200 and the fourth gear 400 are coaxial; the third gear 300 is provided with internal teeth and external teeth; the first gear 100 meshes with the external teeth of the third gear 300; and the fourth gear 400 meshes with the internal teeth of the third gear 300.

[0081] Specifically, the external teeth of the first gear 100 mesh with the external teeth of the third gear 300. This is typically used for initial deceleration, especially when the diameter of the third gear 300 is large, which can significantly reduce speed and increase torque. The fourth gear 400 then meshes with the second gear 200 to further adjust the speed and torque. If the diameter of the second gear 200 is larger than that of the fourth gear 400, it will further reduce speed and increase torque. Coaxial gears can effectively transmit torque while reducing energy loss caused by an excessively long drive chain.

[0082] The coaxial design reduces the space occupied by the entire gear set, which is particularly advantageous for space-constrained applications. The reduction in additional support structures and materials results in a lighter overall weight, beneficial for portable devices or aerospace components.

[0083] Furthermore, in some preferred embodiments of this utility model, the diameter of the second gear 200 is the same as the diameter of the third gear 300.

[0084] Example 3

[0085] Based on the above embodiments, this utility model provides a gas stove 30, see [link to relevant documentation]. Figure 5 The schematic diagram of a gas stove provided in the present utility model embodiment is shown. The gas stove 30 includes: a controller 20 and an automatic knob mechanism 10 described in the above embodiment; the controller 20 is electrically connected to the automatic knob mechanism 10.

[0086] Specifically, the controller 20 can automatically adjust the knob 3000 according to cooking needs to achieve precise temperature control and avoid overheating or overcooling. Users can preset cooking modes, such as porridge or soup, and the controller 20 will automatically adjust the knob 3000 to the appropriate position.

[0087] Furthermore, the controller 20 can be set with a timed shutdown function to prevent safety hazards caused by prolonged unattended operation. The integrated gas detector can detect gas leaks and automatically shut off the gas stove 30 via the controller 20.

[0088] The electrical connection between the controller 20 and the automatic knob mechanism 10 brings numerous advantages to the gas stove 30, including intelligence, safety, user-friendliness, energy efficiency, ease of maintenance, and aesthetic design. This configuration not only enhances the user experience but also improves the functionality and adaptability of the gas stove 30, enabling it to meet the diverse needs of modern families.

[0089] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the gas stove 30 described above can be referred to the corresponding process in the aforementioned embodiment of the automatic knob mechanism 10, and will not be repeated here.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic knob mechanism, characterized in that, include: Rotary motor, reduction gear assembly, and knob; The output end of the rotary motor is connected to the reduction gear assembly for transmission. The deceleration assembly is connected to the knob via a transmission mechanism; The rotary motor is used to drive the knob to rotate via the reduction gear assembly.

2. The automatic knob mechanism according to claim 1, characterized in that, The speed reduction assembly includes: a first gear and a second gear; wherein the diameter of the first gear is smaller than the diameter of the second gear; The output end of the rotary motor is connected to the first gear transmission; The first gear meshes with the second gear; The second gear is connected to the knob via a transmission.

3. The automatic knob mechanism according to claim 2, characterized in that, The first gear is an external gear, and the second gear is an internal gear; A mounting plate is provided at one end of the second gear, and the knob is connected to the mounting plate in a driving connection.

4. The automatic knob mechanism according to claim 2, characterized in that, The reduction assembly further includes: a gear set; the gear set includes: multiple gears connected in transmission. The first gear and the second gear are connected by the gear set.

5. The automatic knob mechanism according to claim 4, characterized in that, The gear set includes a third gear and a fourth gear that are connected in a transmission manner; wherein the diameter of the third gear is larger than the diameter of the fourth gear; The first gear is connected to the third gear in a transmission connection; The fourth gear is connected to the second gear in a transmission connection.

6. The automatic knob mechanism according to claim 5, characterized in that, The third gear is coaxial with the fourth gear.

7. The automatic knob mechanism according to claim 5, characterized in that, The first gear, the third gear, the fourth gear, and the second gear mesh in sequence.

8. The automatic knob mechanism according to claim 5, characterized in that, The second gear is coaxial with the fourth gear; the third gear is provided with internal teeth and external teeth; The first gear meshes with the external teeth of the third gear; The fourth gear meshes with the internal teeth of the third gear.

9. The automatic knob mechanism according to claim 5, characterized in that, The diameter of the second gear is the same as the diameter of the third gear.

10. A gas stove, characterized in that, The gas stove includes: a controller and an automatic knob mechanism as described in any one of claims 1 to 9; The controller is electrically connected to the automatic knob mechanism.

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