Mounting angle-adjustable knob and home appliance

Abstract

The utility model provides a kind of installation angle adjustable knob and household appliance, it is related to smart home technical field.Knob includes: the knob main part and rotating core being provided with first slot;Multiple limit slots are set in first slot along circumference;Rotating core is provided with protruding part;Protruding part is selectively inserted in any limit slot;Knob main body includes: induction module and the communication module being connected with corresponding second equipment communication;Induction module is used to obtain the operating state of first equipment, and operating state is sent to communication module;Communication module is used to send operating state to second equipment, to make second equipment respond based on operating state;Based on this, the installation angle of knob main body can be flexibly adjusted, to make the second equipment interconnected with knob know the working state of first equipment and respond, thereby realizing the linkage function between cross-brand equipment, while enhancing the user's autonomous selection right, improve product use experience.

Description

Technical Field

[0001] This utility model relates to the field of smart home technology, and in particular to a knob and home appliance with an adjustable installation angle. Background Technology

[0002] Appliance linkage refers to the interaction between multiple functionally related devices, where a change in the operating state of one device simultaneously adjusts the operating state of its associated devices. Current appliance linkage systems are generally based on products from the same brand or even deeply related products, requiring users to spend significant sums of money upgrading their appliances to experience this functionality.

[0003] In related technologies, the angle between the limiting surface of the valve stem and the initial position of the old knob on the equipment that needs to replace the knob is fixed, and this angle is usually different for different equipment. When replacing the existing spare knob, it is necessary to match the limiting surface in the knob slot with the limiting surface of the valve stem. Since the existing spare knob is usually a one-piece molded component, the angle between the initial mark of the knob and the limiting surface in the knob slot is fixed. After replacing the existing spare knob, the initial position of the knob usually cannot point to the initial position of the old knob on the equipment, and it is difficult to apply to various equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a knob and home appliance with an adjustable installation angle. The design allows for adjustment of the knob body and rotating core relative to the installation angle. The installation angle of the knob body can be flexibly adjusted so that a second device connected to the knob can know the working status of the first device and respond accordingly. This enables the linkage function between devices from different brands, enhancing the user's right to choose and improving the product user experience.

[0005] In a first aspect, this utility model provides a knob with an adjustable installation angle, comprising: a knob body and a rotating core; a first slot is provided on the knob body, and a plurality of limiting grooves are provided in the first slot along the circumferential direction; the rotating core is provided with a protrusion and a valve stem groove; the protrusion is provided on the outer surface of the rotating core; the protrusion can be selectively inserted into any limiting groove, and the protrusion can restrict the rotation of the rotating core through the limiting groove; the valve stem groove is provided with a limiting surface, the valve stem groove is inserted into the valve stem of a first device, and the limiting surface restricts the rotation of the valve stem of the first device within the valve stem groove; The knob body includes: a sensing module and a communication module; the communication module is connected to the corresponding second device. The sensing module is used to acquire the operating status of the first device and send the operating status to the communication module; The communication module is used to send the operating status to the second device so that the second device can respond based on the operating status.

[0006] In some preferred embodiments of this utility model, the knob further includes: a base; the base is provided with a sensing element; the sensing module includes: a sensing sensor; the sensing sensor can rotate synchronously with the rotation of the knob body; the base is fixedly mounted on the first device; The sensing module is used to detect the sensing element through a sensing sensor to generate a sensing signal and send the sensing signal to the communication module; wherein, the sensing signal can switch between a first signal and a second signal as the sensing sensor rotates with the knob body; the first signal indicates that the first device is in a power-off state; the second signal indicates that the first device is in a power-on state; The communication module is also used to send the sensing signal to the second device so that the second device can respond based on the sensing signal.

[0007] In some preferred embodiments of this utility model, the sensing element is a sensing rod; a second slot is provided on the knob body; the sensing rod is inserted into the second slot, and the second slot forms a groove space that limits the rotation range of the knob body. During the rotation of the knob body, the second slot rotates with the knob body and is displaced relative to the sensing rod.

[0008] In some preferred embodiments of this utility model, the knob further includes: an indicator light; a mounting cavity is provided inside the knob body; a circuit board is provided inside the mounting cavity; and the communication module and the indicator light are both disposed on the circuit board.

[0009] In some preferred embodiments of this utility model, a viewing window is provided on the knob body corresponding to the position of the indicator light.

[0010] In some preferred embodiments of this utility model, an indicator is provided on the base; when the sensing signal is the first signal, the indicator and the indicator light are positioned at the same location.

[0011] In some preferred embodiments of this utility model, the communication module is a Bluetooth module or a WiFi module.

[0012] In some preferred embodiments of this invention, the sensing element is a magnet; the sensing sensor is a Hall sensor, a mechanical switch, or an infrared sensing sensor.

[0013] In some preferred embodiments of this utility model, the first device is a stove; the second device is a range hood.

[0014] Secondly, this utility model provides a household appliance, which is equipped with the adjustable installation angle knob provided in the first aspect.

[0015] This utility model brings the following beneficial effects: This utility model provides an adjustable-angle knob and a household appliance. The knob includes: a knob body and a rotating core; the knob body is provided with a first slot, and multiple limiting grooves are provided circumferentially within the first slot; the rotating core is provided with a protrusion and a valve stem groove; the protrusion is provided on the outer surface of the rotating core; the protrusion can be selectively inserted into any limiting groove, and the protrusion can restrict the rotation of the rotating core through the limiting groove; the valve stem groove is provided with a limiting surface, the valve stem groove is inserted into the valve stem of the first device, and the limiting surface restricts the rotation of the valve stem of the first device within the valve stem groove; the knob body includes: a sensing module and a communication module; The communication module communicates with the corresponding second device; the sensing module is used to acquire the operating status of the first device and send the operating status to the communication module; the communication module is used to send the operating status to the second device so that the second device can respond based on the operating status; the design features a knob body and rotating core with adjustable relative installation angles, allowing flexible adjustment of the knob body's installation angle so that the second device interconnected with the knob can know the operating status of the first device and respond accordingly, thereby realizing the linkage function between devices from different brands, enhancing the user's autonomy in choosing while improving the product's user experience. Attached Figure Description

[0016] 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.

[0017] Figure 1 A schematic diagram illustrating the effect of replacing the existing knob on a dual-burner gas stove according to an embodiment of this utility model; Figure 2 A schematic diagram of the structure of a knob body provided in an embodiment of this utility model; Figure 3 A bottom view of the lower cover of a knob body provided in an embodiment of this utility model; Figure 4 A schematic diagram of the structure of a rotating core provided in an embodiment of this utility model; Figure 5 A schematic diagram showing the interaction between the rotating core and the knob body in an embodiment of this utility model; Figure 6 A schematic diagram of the structure of a base provided in an embodiment of this utility model; Figure 7 A bottom view of a knob body provided for an embodiment of this utility model; Figure 8 This is a schematic diagram of the window position provided for an embodiment of the present utility model.

[0018] Icons: 1-Knob body; 11-Top cover; 111-Viewing window; 12-Lower cover; 121-Second slot; 122-Screw hole; 13-First slot; 131-Limiting groove; 2-Base; 21-Through hole; 22-Sensing element; 23-Indicator mark; 4-Rotating core; 41-Protrusion; 42-Valve stem groove; 421-Limiting surface. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] In the description of the present utility model, it should also be noted that unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "couple" shall be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be internal communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific conditions.

[0025] In the related art, for the first device and the second device to implement the linkage function, it is usually required that both are products from the same brand manufacturer to ensure the consistency of communication protocols. However, this limits users' independent choice to a certain extent, that is, when a user only has a first device of brand A, the user has to purchase a second device of the same brand to realize the linkage function. With the solution in the present embodiment, when a user only has the first device of brand A, the user can purchase a second device of brand B, and the brand B manufacturer provides the user with the knob assembly in the embodiment of the present utility model by means of free gift or tie-in sale. Since the knob assembly in the embodiment of the present utility model can acquire the operating state of the first device of brand A and transmit the corresponding operating state to the second device of brand B through the communication module, users can realize cross-brand device linkage without replacing the first device of brand A, which greatly enhances users' independent choice and improves the product use experience.

[0026] Meanwhile, referring to Figure 1 is the schematic diagram showing the effect after the double-burner gas stove provided by the embodiment of the present utility model replaces the existing knobs. The initial positions of the two old knobs, that is, the positions on the surface of the device indicating that the device is turned off, usually point to the same direction. However, the limiting surfaces on the two valve stems for installing the knobs are usually arranged mirror-symmetrically. If the existing knobs are replaced, the initial positions of the installed knobs can hardly point to the device off position.

[0027] Hereinafter, some embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The embodiments and features in the embodiments can be combined with each other without conflict.

[0028] Embodiment 1 This utility model embodiment provides a knob with an adjustable installation angle, including: a knob body 1 and a rotating core 4; the knob body 1 is provided with a first slot 13, and a plurality of limiting grooves 131 are provided circumferentially in the first slot 13; the rotating core 4 is provided with a protrusion 41 and a valve stem groove 42; the protrusion 41 is provided on the outer surface of the rotating core 4; the protrusion 41 can be selectively inserted into any limiting groove 131, and the protrusion 41 can restrict the rotation of the rotating core 4 through the limiting groove 131; the valve stem groove 42 is provided with a limiting surface 421, the valve stem groove 42 is inserted into the valve stem of a first device, and the limiting surface 421 restricts the rotation of the valve stem of the first device within the valve stem groove 42; the knob body 1 includes: a sensing module and a communication module; the communication module is communicatively connected to a corresponding second device; the sensing module is used to acquire the operating status of the first device and send the operating status to the communication module; the communication module is used to send the operating status to the second device so that the second device can respond based on the operating status.

[0029] For details, see Figure 2 The schematic diagram shown below illustrates the structure of a knob body according to an embodiment of the present invention. The knob body 1 includes an upper cover 11 and a lower cover 12. The upper cover 11 and the lower cover 12 are fixedly connected by a connector (e.g., a bolt passing through a bolt hole 122). A cavity exists between the two, in which both the sensing module and the communication module are housed. A first slot 13 is provided at the center of the lower cover 12 of the knob body 1. See also... Figure 3 The figure shown is a bottom view of the lower cover of a knob body provided in this embodiment of the present invention. Multiple limiting grooves 131 are provided circumferentially within the first slot 13; see also... Figure 4 The schematic diagram shown is of a rotating core according to an embodiment of the present invention. In this embodiment, the rotating core 4 has three protrusions 41. However, in actual production, the number and shape of the protrusions 41 are not limited. They can be selectively inserted into any limiting groove 131 to achieve a relatively fixed positional relationship with the lower cover 12 of the button body or the integrated knob body 1. (See also...) Figure 5 The diagram shown illustrates the interaction between the rotating core and the knob body in this embodiment of the invention. Three interaction methods (a, b, and c) are shown, each with a different angle between the limiting surface 421 and the initial knob marking. The valve stem groove 42 is provided with a limiting surface 421. The valve stem groove 42 is inserted into the valve stem of the first device, and the limiting surface 421 restricts the rotation of the valve stem within the valve stem groove 42. It is understood that after the knob is installed, the base position on the knob body 1 will differ due to the different angles of the limiting surface 421, thus achieving adjustment of the knob installation angle. Interaction methods b and c perfectly solve the problem of… Figure 1The problem with the device shown is that the left and right valve stems are installed in the manner shown in b and c respectively, so that the initial position of the replaced knob is exactly the same as the initial direction of the original knob.

[0030] The sensing module can directly transmit data with the first device to obtain its operating status. It then sends the acquired sensing signal to the communication module, which forwards the operating status of the first device to the paired second device. The second device responds based on the operating status of the first device. For example, if the second device learns that the first device is powered on, the second device also powers on synchronously; if the second device learns that the first device is powered off, the second device also powers off synchronously. Those skilled in the art will understand that power-off and power-on states are the most basic operating states possessed by home appliances such as stoves, range hoods, dishwashers, steam ovens, and air conditioners. Therefore, the knob in this embodiment can at least achieve the linkage of the opening and closing functions between the first and second devices.

[0031] The communication module is not limited to using Bluetooth, WIFI or other communication solutions; it only needs to enable wireless linkage function for data transmission between two devices.

[0032] Furthermore, in some preferred embodiments of this utility model, the knob further includes: a base 2; the base 2 is provided with a sensing element 22; the sensing module includes: a sensing sensor; the sensing sensor can rotate synchronously with the rotation of the knob body 1; the base 2 is fixedly mounted on the first device; the sensing module is used to detect the sensing element 22 through the sensing sensor to generate a sensing signal, and send the sensing signal to the communication module; wherein, during the rotation of the knob body 1, the sensing signal can switch between a first signal and a second signal; the first signal indicates that the first device is in a power-off state; the second signal indicates that the first device is in a power-on state; the communication module is also used to send the sensing signal to the second device so that the second device responds based on the sensing signal.

[0033] For details, see Figure 6The schematic diagram of a base provided in this embodiment of the present invention shows that a through hole 21 slightly larger than the diameter of the valve stem is provided in the center of the fixed base 2. The valve stem passes through the through hole 21. A sensing element 22 is fixedly installed on the base 2. The sensing sensor can generate a sensing signal based on the sensing element 22. The sensing signal changes with the distance between the two. The sensing sensor is fixedly installed in the button body and can rotate synchronously with the knob body 1. The first signal indicates that the first device is in the off state. After the knob is installed, when the first device is in the off state, the signal at this time is taken as the first signal. Generally, the signal strength is recorded. In some preferred embodiments of the present invention, due to some installation errors, the first signal can be set as a signal strength range. As long as the strength of the sensing signal falls within this range, it means that the sensing signal at this time is the first signal. Based on this, sensing signals with strength greater than or less than the first signal are collectively referred to as the second signal. In some preferred embodiments of the present invention, the first signal is usually the sensing signal with the strongest signal strength. At this time, the sensing element 22 and the sensing sensor are closest.

[0034] The sensing sensor can be any device that can detect the rotational position of the knob body 1, such as a magnetic sensor, mechanical switch, or infrared sensor.

[0035] The sensing sensor sends the acquired sensing signal to the communication module, which then forwards the signal to the paired second device. The second device responds based on the sensing signal; for example, if the second device learns that the first device is powered on, the second device also powers on simultaneously; conversely, if the second device learns that the first device is powered off, the second device also powers off simultaneously. Those skilled in the art will understand that the power-off state indicated by the first signal and the power-on state indicated by the second signal are the most basic operating states possessed by household appliances such as stoves, range hoods, dishwashers, steam ovens, and air conditioners. Therefore, the knob in this embodiment can at least achieve the linkage of the on / off functions between the first and second devices.

[0036] Furthermore, in some preferred embodiments of this utility model, the sensing element 22 is a sensing rod; a second slot 121 is provided on the knob body 1; the second slot 121 is inserted into the sensing rod; the second slot 121 extends along the path of the sensing rod moving relative to the knob body 1 when the knob body 1 is rotated.

[0037] For details, please refer to [link / reference]. Figure 6 The sensor 22 is fixedly mounted on the side of the base 2 opposite to the main body of the button assembly; see also Figure 7The illustration shows a bottom view of a knob body provided in this embodiment of the present invention. The second slot 121 is arc-shaped and partially surrounds the first slot 13. It is understood that the sensor 22 is inserted into the second slot 121. During the rotation of the knob body 1, the sensor 22 moves within the second slot 121. When the sensing rod abuts one end of the second slot 121 during the rotation of the knob body 1, the knob body 1 can no longer continue rotating in the current direction. The sensing sensor is disposed within the mounting cavity, close to the groove wall of the second slot 121. In some preferred embodiments of the present invention, the sensing sensor is attached to the groove wall of the second slot 121, which allows for more sensitive detection of the sensor 22.

[0038] Furthermore, in some preferred embodiments of this utility model, the knob further includes: an indicator light; a mounting cavity is provided inside the knob body 1; a circuit board is provided inside the mounting cavity; and the communication module and the indicator light are both disposed on the circuit board.

[0039] Specifically, in this embodiment, the cavity between the upper cover 11 and the lower cover 12 is referred to as the mounting cavity. A circuit board for fixing hardware is disposed within the mounting cavity, and all components in the knob assembly are disposed on this circuit board. The indicator light can be a single-color light or a multi-color light, and different working states of the knob are indicated by color changes or different display forms. Correspondingly, the knob body 1 can be transparent or semi-transparent. For example, when the sensing signal is the first signal, the indicator light is off; when the sensing signal is the second signal, the indicator light is constantly on. Furthermore, when the indicator light flashes regularly, it can indicate that the knob is in pairing mode and can be paired with a second device.

[0040] Furthermore, in some preferred embodiments of this utility model, a viewing window 111 is provided on the knob body 1 corresponding to the position of the indicator light.

[0041] Specifically, the position of the viewing window 111 is not limited; the user only needs to be able to observe the indicator light through the viewing window 111. If the material of the knob body 1 is opaque, the viewing window 111 can be transparent or it can be an opening; see [link to other documentation]. Figure 8 The diagram shown is a schematic representation of the position of a window provided in this embodiment of the present invention. The window 111 is disposed on the upper cover 11.

[0042] Furthermore, in some preferred embodiments of this utility model, an indicator mark 23 is provided on the base 2; when the sensing signal is the first signal, the indicator mark 23 and the indicator light are positioned at the same location.

[0043] For details, please refer to [link / reference]. Figure 6The indicator mark 23 usually functions when the knob is installed. It is aligned with the reference position of the old switch button when the first device is in a certain working state, usually the position of the off state. After the base 2 is installed on the surface of the first device, when the knob body 1 is installed, the position of the indicator light (i.e. the window 111) is aligned with the position of the indicator mark 23. At this time, the sensing signal sensed by the sensor is the first signal.

[0044] Furthermore, in some preferred embodiments of this utility model, the communication module is a Bluetooth module or a WiFi module.

[0045] Specifically, the communication module can be set as a Bluetooth module, which features low power consumption, fast transmission, and does not rely on an external network, enabling communication anytime. The knob can be powered by button batteries, various dry cell batteries, or rechargeable batteries, which can save internal space and facilitate replacement; furthermore, wireless power supply can also be integrated.

[0046] Furthermore, in some preferred embodiments of this utility model, the sensing element 22 is a magnet; the sensing sensor is a Hall sensor, a mechanical switch, or an infrared sensing sensor.

[0047] Specifically, the sensing sensor can be a Hall sensor, which features fast response time, low temperature drift, high accuracy, small size, wide bandwidth, strong anti-interference ability, and strong overload capacity, making it suitable for kitchens.

[0048] This utility model provides a knob with an adjustable installation angle. The knob includes: a knob body 1 and a rotating core 4; the knob body 1 is provided with a first slot 13, and a plurality of limiting grooves 131 are provided circumferentially inside the first slot 13; the rotating core 4 is provided with a protrusion 41 and a valve stem groove 42; the protrusion 41 is provided on the outer surface of the rotating core 4; the protrusion 41 can be selectively inserted into any limiting groove 131, and the protrusion 41 can restrict the rotation of the rotating core 4 through the limiting groove 131; the valve stem groove 42 is provided with a limiting surface 421, the valve stem groove 42 is inserted into the valve stem of a first device, and the limiting surface 421 restricts the rotation of the valve stem of the first device within the valve stem groove 42; the knob The main body 1 includes a sensing module and a communication module; the communication module is connected to a corresponding second device; the sensing module is used to acquire the operating status of the first device and send the operating status to the communication module; the communication module is used to send the operating status to the second device so that the second device can respond based on the operating status; the design includes a knob body 1 and a rotating core 4 with adjustable relative installation angles, which can flexibly adjust the installation angle of the knob body 1 so that the second device connected to the knob can know the working status of the first device and respond, thereby realizing the linkage function between devices of different brands, enhancing the user's right to choose and improving the product user experience.

[0049] Example 2 Based on the above embodiments, this utility model provides another knob, which is set on the stove and can obtain the working status of the stove and send it to the range hood; after purchasing a range hood with stove-range linkage, the user can replace the original knob on the stove with this knob and achieve stove-range linkage without replacing the stove.

[0050] Example 3 Based on the above embodiments, this utility model provides a household appliance that is equipped with the knob provided in the above embodiments.

[0051] Specifically, the existing knobs on home appliances with knobs can be directly replaced with the knobs provided in the above embodiments. The operating status is then sent to the electrical equipment linked to the home appliance via the communication module. This allows for device linkage without replacing a large number of electrical devices, greatly improving the user experience.

[0052] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the household appliances described above can be referred to the corresponding process in the aforementioned knob embodiment, and will not be repeated here.

[0053] 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. A knob with an adjustable mounting angle, characterized in that, include: The knob body and the rotating core are provided; the knob body is provided with a first slot, and the first slot is provided with a plurality of limiting grooves along the circumferential direction; the rotating core is provided with a protrusion and a valve stem groove; the protrusion is provided on the outer surface of the rotating core; the protrusion can be selectively inserted into any of the limiting grooves, and the protrusion can restrict the rotation of the rotating core through the limiting groove; the valve stem groove is provided with a limiting surface, the valve stem groove is inserted into the valve stem of the first device, and the limiting surface restricts the rotation of the valve stem of the first device within the valve stem groove; The knob body includes: a sensing module and a communication module; the communication module is communicatively connected to a corresponding second device. The sensing module is used to acquire the operating status of the first device and send the operating status to the communication module; The communication module is used to send the operating status to the second device so that the second device can respond based on the operating status.

2. The adjustable mounting angle knob according to claim 1, characterized in that, The knob further includes: a base; the base is provided with a sensing element; the sensing module includes: a sensing sensor; the sensing sensor can rotate synchronously with the rotation of the knob body; the base is fixedly mounted on the first device; The sensing module is used to detect the sensing element through the sensing sensor to generate a sensing signal, and send the sensing signal to the communication module; wherein, as the sensing sensor rotates with the knob body, the sensing signal can switch between a first signal and a second signal; the first signal indicates that the first device is in a power-off state; the second signal indicates that the first device is in a power-on state; The communication module is also used to send the sensing signal to the second device so that the second device can respond based on the sensing signal.

3. The adjustable mounting angle knob according to claim 2, characterized in that, The sensing element is a sensing rod; a second slot is provided on the knob body; the sensing rod is inserted into the second slot, and the second slot forms a groove space that limits the rotation range of the knob body. During the rotation of the knob body, the second slot rotates with the knob body and is displaced relative to the sensing rod.

4. The adjustable mounting angle knob according to claim 2, characterized in that, The knob further includes: an indicator light; a mounting cavity is provided inside the knob body; a circuit board is provided inside the mounting cavity; the communication module and the indicator light are both located on the circuit board.

5. The adjustable mounting angle knob according to claim 4, characterized in that, A viewing window is provided on the knob body corresponding to the position of the indicator light.

6. The adjustable mounting angle knob according to claim 5, characterized in that, The base is provided with an indicator mark; when the sensing signal is the first signal, the indicator mark and the indicator light are positioned at the same location.

7. The adjustable mounting angle knob according to claim 1, characterized in that, The communication module is either a Bluetooth module or a WiFi module.

8. The adjustable mounting angle knob according to claim 2, characterized in that, The sensing element is a magnet; the sensing sensor is a Hall sensor, a mechanical switch, or an infrared sensing sensor.

9. The adjustable mounting angle knob according to any one of claims 1 to 8, characterized in that, The first device is a stove; the second device is a range hood.

10. A household appliance, characterized in that, The home appliance is provided with an adjustable installation angle knob as described in any one of claims 1 to 9.

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