Mechanical knob and humidifier

Abstract

The utility model discloses a mechanical knob and a humidifier, the mechanical knob comprises a switch assembly and a knob assembly, the switch assembly comprises a knob switch and a first magnetic part connected with the knob switch; the knob assembly comprises a knob body and a second magnetic part connected with the knob body; wherein the second magnetic piece is used for adsorbing the first magnetic piece so as to drive the knob switch to rotate synchronously when the knob body rotates. According to the mechanical knob provided by the embodiment of the utility model, when water and the like are splashed onto the knob body, the water and the like cannot enter the switch assembly, so that the mechanical knob is prevented from being damaged and the safety of the mechanical knob is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a mechanical knob and a humidifier. Background Technology

[0002] Humidifiers are household appliances that increase room humidity and have become widely used in recent years. For humidifiers with mechanical knobs, the knob is mounted on the humidifier's casing. Specifically, a perforation is made in the casing, and the knob's switch extends from the inside of the casing to the outside through this perforation. When adding water or performing other operations, water can easily splash onto the knob and enter the mechanical switch through the perforation, potentially damaging the knob and posing a risk of electric shock. Utility Model Content

[0003] This invention proposes a mechanical knob to reduce the risk of damage to the mechanical knob and improve its safety.

[0004] The mechanical knob of this utility model includes a switch assembly and a knob assembly. The switch assembly includes a rotary switch and a first magnetic element connected to the rotary switch. The knob assembly includes a knob body and a second magnetic element connected to the knob body. The second magnetic element is used to attract the first magnetic element so that the rotary switch rotates synchronously when the knob body rotates.

[0005] This invention relates to a mechanical knob that incorporates a first magnetic component connected to a knob switch and a second magnetic component connected to the knob body. The second magnetic component attracts the first magnetic component, allowing the knob switch to rotate when the knob body is turned, thus achieving a switching function. Furthermore, the knob switch and knob body do not require direct connection, allowing the switch assembly and knob assembly to be mounted on opposite sides of the housing without the need for perforations. This prevents water or other contaminants from entering the switch assembly when splashed onto the knob body, avoiding damage and improving the knob's safety.

[0006] Optionally, the switch assembly further includes a rotating rod, one end of which is connected to the rotary switch to prevent rotation, and the first magnetic element is connected to the other end of the rotating rod.

[0007] By incorporating a rotating rod, with one end connected to the rotary switch to prevent rotation and the other end connected to the first magnetic component, the lever arm of the magnetic force on the rotary switch can be increased. This allows the rotary switch to rotate even with a relatively small magnetic force. Consequently, even with small volumes of the first and second magnetic components, the rotary switch can still be driven to rotate when the main body of the rotary switch rotates, improving the compactness and reducing the overall size of the mechanical knob.

[0008] Optionally, the rotating lever is located on the side of the rotary switch near the rotary assembly.

[0009] By positioning the rotating rod on the side of the rotary switch close to the rotary assembly, the distance between the first and second magnetic components is reduced, resulting in a larger magnetic force between the second and first magnetic components despite their relatively small size. Therefore, even with smaller first and second magnetic components, the rotary switch can still be driven to rotate when the rotary body is turned, improving the compactness and reducing the overall size of the mechanical knob.

[0010] Optionally, the rotary switch includes a switch body and an anti-rotation protrusion. The anti-rotation protrusion is disposed on the side of the switch body facing the rotary assembly. The rotating rod has an anti-rotation hole, and the anti-rotation protrusion is inserted into the anti-rotation hole and engages with the anti-rotation hole to prevent rotation.

[0011] By setting an anti-rotation protrusion on the rotary switch and an anti-rotation hole in the rotating rod, the anti-rotation engagement between the rotating rod and the rotary switch is achieved by inserting the anti-rotation protrusion into the anti-rotation hole. This simplifies the structure of the rotary switch and the rotating rod and facilitates the processing and manufacturing of mechanical knobs.

[0012] Optionally, the first magnetic element is disposed on the side of the rotating rod near the knob assembly.

[0013] By placing the first magnetic component on the side of the rotating rod close to the knob assembly, the distance between the first and second magnetic components is reduced, resulting in a larger magnetic force between them while maintaining a relatively small size. Therefore, even with small sizes, the first and second magnetic components can still drive the knob switch to rotate when the knob body rotates, improving the compactness and reducing the overall size of the mechanical knob.

[0014] Optionally, the rotating rod is provided with a first mounting groove, and the first magnetic element is fixed in the first mounting groove. By fixing the first magnetic element in the first mounting groove, the structural compactness of the switch assembly can be improved, and the size of the mechanical knob can be further reduced.

[0015] Optionally, the switch assembly further includes a circuit board, and the rotary switch is connected to the circuit board. By including a circuit board in the switch assembly, the circuit board can be used to install and fix the switch assembly, facilitating the installation and fixation of the switch assembly.

[0016] Optionally, the second magnetic element is disposed on the side of the knob body near the switch assembly.

[0017] By placing the second magnetic component on the side of the knob body closer to the switch assembly, the distance between the first and second magnetic components is reduced, resulting in a larger magnetic force between them while maintaining a relatively small size. Therefore, even with small sizes, the first and second magnetic components can still drive the knob switch to rotate when the knob body is turned, improving the compactness and reducing the overall size of the mechanical knob.

[0018] Optionally, the knob body is provided with a second mounting groove, and the second magnetic element is fixed in the second mounting groove. By fixing the second magnetic element in the second mounting groove, the structural compactness of the switch assembly can be improved, and the size of the mechanical knob can be further reduced.

[0019] Optionally, the knob body includes a knob body and a mounting post. The knob body is a hollow structure, and the mounting post is disposed inside the knob body. The second mounting groove is disposed on the mounting post. By setting the knob body to the above structure, the connection reliability between the second magnetic component and the knob body can be guaranteed while keeping the knob body structure simple, thereby improving the reliability of the mechanical knob.

[0020] Optionally, the second magnetic element is disposed corresponding to the first magnetic element. By distributing the second magnetic element to correspond to the first magnetic element, the distance between the first and second magnetic elements is reduced, thereby achieving a greater magnetic force between the second and first magnetic elements even when their volumes are relatively small. Thus, even with relatively small volumes of both the first and second magnetic elements, they can still drive the knob switch to rotate when the knob is turned, improving the compactness and reducing the size of the mechanical knob.

[0021] Optionally, the rotation axis of the knob body coincides with the rotation axis of the rotary switch. By aligning the rotation axis of the knob body with the rotation axis of the rotary switch, the relative positions of the first and second magnetic components remain unchanged during the rotation of the knob body. This ensures that the magnetic force between the second and first magnetic components remains constant, which helps improve the reliability of the mechanical knob.

[0022] This utility model also provides a humidifier.

[0023] The humidifier of this utility model includes a fixed base and a mechanical knob as described in any of the above claims, wherein the switch assembly and the knob assembly are disposed on opposite sides of the fixed base.

[0024] By equipping the humidifier with a mechanical knob as described above, water can be prevented from entering the switch assembly when water is added to the humidifier and splashes onto the knob body, thus preventing damage to the humidifier and improving the safety of the mechanical knob.

[0025] Optionally, the humidifier includes a main unit, the main unit including an annular housing forming the mounting base, the switch assembly being disposed inside the housing, and the knob assembly being disposed outside the housing.

[0026] By placing the switch assembly inside the housing and the knob assembly outside the housing, the switch assembly can be enclosed within the housing, ensuring its airtightness, effectively preventing water from entering the switch assembly, thus preventing damage to the humidifier and improving the safety of the mechanical knob.

[0027] Optionally, the mounting base is provided with a connecting post protruding towards the knob assembly, and the knob body is rotatably connected to the connecting post. Connecting the knob body to the connecting post improves the reliability of the connection between the knob body and the connecting post, thereby enhancing the reliability of the mechanical knob.

[0028] Optionally, the mounting base has a receiving groove with its opening facing the knob assembly, a portion of the knob body is disposed inside the receiving groove, and another portion of the knob body is disposed outside the receiving groove. By providing a receiving groove on the mounting base and placing a portion of the knob body inside the receiving groove, it is beneficial to reduce the size of the mechanical knob. Attached Figure Description

[0029] Figure 1 This is an exploded structural diagram of the mechanical knob from one perspective of an embodiment of the present invention.

[0030] Figure 2 This is an exploded structural diagram of the switch assembly in the mechanical knob of this utility model embodiment.

[0031] Figure 3 This is an exploded structural diagram of the mechanical knob from another perspective of an embodiment of this utility model.

[0032] Figure 4 This is an exploded structural diagram of the knob assembly of the mechanical knob according to an embodiment of the present invention.

[0033] Figure 5 This is a cross-sectional view of the mechanical knob in an embodiment of the present invention.

[0034] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0035] Figure 7 This is a cross-sectional view of the mechanical knob in an embodiment of this utility model.

[0036] Figure 8 yes Figure 7 A magnified view of a section at point B.

[0037] Figure 9 This is an exploded structural diagram of the humidifier according to an embodiment of the present invention.

[0038] Figure label:

[0039] 100. Humidifier;

[0040] 10. Mechanical knob;

[0041] 1. Fixing base; 11. Connecting post; 111. Slot; 12. Receiving slot; 13. Fixing post;

[0042] 2. Switch assembly; 21. Rotary switch; 211. Switch body; 212. Anti-rotation protrusion; 22. First magnetic component; 23. Rotating rod; 231. Anti-rotation hole; 232. First mounting slot; 24. Circuit board;

[0043] 3. Knob assembly; 31. Knob body; 311. Knob main body; 3111. Buckle; 312. Mounting post; 3121. Second mounting slot; 32. Second magnetic component;

[0044] 4. Base;

[0045] 20. Water tank. Detailed Implementation

[0046] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0047] like Figures 1 to 8 As shown, the mechanical knob 10 of this embodiment includes a switch assembly 2 and a knob assembly 3. The switch assembly 2 includes a rotary switch 21 and a first magnetic element 22 connected to the rotary switch 21. The knob assembly 3 includes a knob body 31 and a second magnetic element 32 connected to the knob body 31. The second magnetic element 32 is used to attract the first magnetic element 22, so that the rotary switch 21 rotates when the knob body 31 rotates.

[0048] The mechanical knob 10 of this embodiment of the invention features a first magnetic element 22 connected to a knob switch 21 and a second magnetic element 32 connected to a knob body 31. The second magnetic element 32 attracts the first magnetic element 22, allowing the knob switch 21 to rotate when the knob body 31 is rotated, thus achieving a switching function. Furthermore, the knob switch 21 and the knob body 31 do not need to be directly connected, allowing the switch assembly 2 and the knob assembly 3 to be mounted on opposite sides of the housing without requiring perforations. This prevents water or other substances from entering the switch assembly 2 when splashed onto the knob body 31, thus avoiding damage to the mechanical knob 10 and improving its safety.

[0049] Optionally, such as Figures 5 to 8 As shown, the switch assembly 2 and the knob assembly 3 are located on opposite sides of the housing, and both the knob body 31 and the knob switch 21 are rotatably connected to the housing. By rotating the knob body 31 on one side of the housing, the knob switch 21 located on the other side of the housing is driven to rotate to realize the switching function. The housing separates the switch assembly 2 and the knob assembly 3 to prevent water or other substances from splashing onto the knob body 31 and entering the interior of the switch assembly 2.

[0050] Optionally, the first magnetic element 22 and the second magnetic element 32 are both magnetic blocks, and the magnetic properties of the first magnetic element 22 and the second magnetic element 32 are opposite.

[0051] For example, the first magnetic element 22 is the S pole, and the second magnetic element 32 is the N pole.

[0052] Of course, at least one of the first magnetic element 22 and the second magnetic element 32 can be set as an electromagnet; or, one of the first magnetic element 22 and the second magnetic element 32 can be set as a magnetic block and the other as a metal block that can be magnetized.

[0053] In some embodiments, such as Figures 1 to 3 , Figure 6 and Figure 8 As shown, the switch assembly 2 also includes a rotating rod 23, one end of which is connected to the rotary switch 21 to prevent rotation, and the first magnetic element 22 is connected to the other end of the rotating rod 23.

[0054] It is understandable that the torque on the rotary switch 21 is positively correlated with the magnitude of the force and the length of the lever arm; that is, the greater the force and the longer the lever arm, the greater the torque on the rotary switch 21, and the smaller the force and the shorter the lever arm, the smaller the torque on the rotary switch 21. Therefore, the larger the lever arm of the rotary switch 21, the more likely it is to rotate when a smaller force is applied.

[0055] By setting a rotating rod 23, with one end of the rotating rod 23 connected to the rotary switch 21 to prevent rotation, and the first magnetic element 22 connected to the other end of the rotating rod 23, the lever arm of the magnetic force on the rotary switch 21 can be made larger, so that the rotary switch 21 can be rotated even with a smaller magnetic force. Therefore, even with a small size, the first magnetic element 22 and the second magnetic element 32 can still drive the rotary switch 21 to rotate when the knob body 31 rotates, improving the compactness of the mechanical knob 10 and reducing its size.

[0056] Of course, in some other embodiments, the rotating rod may not be provided, and the diameter of the rotary switch 21 may be set to be larger to increase the lever arm of the rotary switch 21.

[0057] Optionally, such as Figure 6 and Figure 8 As shown, the rotating rod 23 is located on the side of the rotary switch 21 near the rotary assembly 3.

[0058] By positioning the rotating rod 23 on the side of the rotary switch 21 close to the rotary assembly 3, the distance between the first magnetic element 22 and the second magnetic element 32 is reduced, resulting in a larger magnetic force between the second magnetic element 32 and the first magnetic element 22 even when the first magnetic element 22 and the second magnetic element 32 are relatively small. Therefore, even with smaller sizes of the first magnetic element 22 and the second magnetic element 32, the rotary switch 21 can still be rotated when the rotary body 31 is rotated, improving the compactness of the mechanical knob 10 and reducing its overall size.

[0059] Optionally, such as Figure 6 and Figure 8 As shown, the rotary switch 21 includes a switch body 211 and an anti-rotation protrusion 212, which is located on the side of the switch body 211 facing the rotary assembly 3. The rotating rod 23 has an anti-rotation hole 231, and the anti-rotation protrusion 212 is inserted into the anti-rotation hole 231 and engages with the anti-rotation hole 231 to prevent rotation.

[0060] For example, the anti-rotation protrusion 212 is D-shaped, the anti-rotation hole 231 is D-shaped, and the anti-rotation hole 231 and the anti-rotation protrusion 212 are in anti-rotation engagement. The anti-rotation protrusion 212 and the anti-rotation hole 231 can also be polygonal.

[0061] By setting an anti-rotation protrusion 212 on the rotary switch 21 and an anti-rotation hole 231 on the rotating rod 23, the anti-rotation engagement between the rotating rod 23 and the rotary switch 21 is achieved by inserting the anti-rotation protrusion 212 into the anti-rotation hole 231. This makes the structure of the rotary switch 21 and the rotating rod 23 simpler and facilitates the processing and manufacturing of the mechanical knob 10.

[0062] To make the technical solution of this utility model easier to understand, the following description further illustrates the technical solution of this utility model, taking the arrangement direction of the switch assembly 2 and the knob assembly 3 as being consistent with the front-back direction. Wherein, the front-back direction is as follows... Figure 1 , Figure 2 , Figures 5 to 8 As shown.

[0063] For example, the knob assembly 3 is located on the front side of the switch assembly 2, the anti-rotation protrusion 212 is located on the front side of the switch body 211, and the rotating rod 23 is located on the front side of the knob switch 21.

[0064] Optionally, such as Figure 6 and Figure 8 As shown, the rotating rod 23 is clamped between the housing and the switch body 211.

[0065] For example, such as Figure 6 and Figure 8 As shown, the rotating rod 23 is clamped between the housing and the switch body 211 in the front-back direction, thereby limiting the rotation of the rotating rod 23 in the front-back direction.

[0066] By clamping the rotating rod 23 between the housing and the switch body 211, the rotating rod 23 is limited in the arrangement direction of the switch assembly 2 and the knob assembly 3, thereby achieving the installation and fixation of the rotating rod 23. Thus, the rotating rod 23 can be installed and fixed without adding other components, which helps to simplify the structure of the mechanical knob 10 and reduce its cost.

[0067] Optionally, such as Figure 8 As shown, the first magnetic element 22 is disposed on the side of the rotating rod 23 near the knob assembly 3.

[0068] For example, the first magnetic element 22 is disposed on the front side of the rotating rod 23.

[0069] By placing the first magnetic element 22 on the side of the rotating rod 23 close to the knob assembly 3, the distance between the first magnetic element 22 and the second magnetic element 32 is relatively small. This allows for a larger magnetic force between the second magnetic element 32 and the first magnetic element 22, even when the first magnetic element 22 and the second magnetic element 32 are relatively small. Therefore, even with small volumes of the first magnetic element 22 and the second magnetic element 32, they can still drive the knob switch 21 to rotate when the knob body 31 rotates, improving the compactness of the mechanical knob 10 and reducing its overall size.

[0070] Optionally, such as Figure 2 As shown, the rotating rod 23 is provided with a first mounting groove 232, and the first magnetic component 22 is fixed in the first mounting groove 232.

[0071] For example, the opening of the first mounting groove 232 faces forward, and the first magnetic element 22 is fixed inside the first mounting groove 232.

[0072] By fixing the first magnetic element 22 in the first mounting groove 232, the structural compactness of the switch assembly 2 can be improved, and the volume of the mechanical knob 10 can be further reduced.

[0073] Optionally, the first magnetic element 22 is embedded in the first mounting groove 232.

[0074] For example, the rotating rod 23 is a plastic part, and the first magnetic part 22 is integrally injection molded with the rotating rod 23.

[0075] Optionally, such as Figures 1 to 3 , Figure 6 and Figure 8 As shown, the switch assembly 2 also includes a circuit board 24, which is used to connect to the housing, and the rotary switch 21 is connected to the circuit board 24.

[0076] By including the circuit board 24 in the switch assembly 2, the switch assembly 2 can be connected to the housing, making it convenient to install and fix the switch assembly 2.

[0077] Optionally, the circuit board 24 is detachably connected to the housing.

[0078] By detachably connecting the circuit board 24 to the housing, the switch assembly 2 can be removed from the housing by removing the circuit board 24, making it convenient to repair or replace the switch assembly 2.

[0079] like Figure 3 As shown, the housing is provided with a fixing post 13, and the circuit board 24 is detachably connected to the fixing post 13.

[0080] For example, the fixing post 13 has a threaded hole, the circuit board 24 has a fixing hole, and the screw passes through the fixing hole and is threadedly connected to the threaded hole.

[0081] By setting the fixing post 13, the connection reliability between the circuit board 24 and the fixing post 13 can be improved, and the reliability of the mechanical knob 10 can be improved.

[0082] Optionally, such as Figure 4 and Figure 8 As shown, the second magnetic element 32 is disposed on the side of the knob body 31 near the switch assembly 2.

[0083] For example, the second magnetic element 32 is disposed on the rear side of the knob body 31.

[0084] By placing the second magnetic element 32 on the side of the knob body 31 close to the switch assembly 2, the distance between the first magnetic element 22 and the second magnetic element 32 is reduced. This allows for a larger magnetic force between the second magnetic element 32 and the first magnetic element 22, even when both elements are relatively small. Consequently, even with smaller sizes, the first magnetic element 22 and the second magnetic element 32 can still drive the rotary switch 21 to rotate when the knob body 31 is rotated, improving the compactness and reducing the size of the mechanical knob 10.

[0085] Optionally, such as Figure 4 As shown, the knob body 31 is provided with a second mounting groove 3121, and the second magnetic component 32 is fixed in the second mounting groove 3121.

[0086] For example, the opening of the second mounting groove 3121 faces rearward, and the second magnetic element 32 is fixed inside the second mounting groove 3121.

[0087] By fixing the second magnetic element 32 within the second mounting groove 3121, the structural compactness of the switch assembly 2 can be improved, further reducing the volume of the mechanical knob 10.

[0088] Optionally, the second magnetic element 32 is embedded in the second mounting groove 3121.

[0089] For example, the knob body 31 is made of plastic, and the second magnetic component 32 is integrally injection molded with the knob body 31.

[0090] Optionally, such as Figure 4 As shown, the knob body 31 includes a knob body 311 and a mounting post 312. The knob body 311 is a hollow structure, the mounting post 312 is disposed inside the knob body 311, and the second mounting groove 3121 is disposed on the mounting post 312.

[0091] By setting the knob body 31 to the above structure, the connection reliability between the second magnetic component 32 and the knob body 31 can be guaranteed, and the reliability of the mechanical knob 10 can be improved, even with a simple structure of the knob body 31.

[0092] Optionally, such as Figure 8 As shown, the second magnetic element 32 is disposed corresponding to the first magnetic element 22. In other words, the orthographic projection of the second magnetic element 32 toward the switch assembly 2 covers the first magnetic element 22, or the orthographic projection of the first magnetic element 22 toward the knob assembly 3 covers the second magnetic element 32.

[0093] For example, the rearward orthogonal projection of the second magnetic element 32 covers the first magnetic element 22, or in other words, the forward orthogonal projection of the first magnetic element 22 covers the second magnetic element 32.

[0094] By aligning the second magnetic element 32 with the first magnetic element 22, the distance between the first magnetic element 22 and the second magnetic element 32 is reduced, thereby achieving a greater magnetic force between the second magnetic element 32 and the first magnetic element 22 even when both elements are relatively small. Consequently, even with smaller sizes, the first magnetic element 22 and the second magnetic element 32 can still drive the rotary switch 21 to rotate when the knob body 31 is rotated, improving the compactness and reducing the size of the mechanical knob 10.

[0095] Optionally, such as Figure 8 As shown, the rotation axis of the knob body 31 coincides with the rotation axis of the knob switch 21.

[0096] By aligning the rotation axis of the knob body 31 with the rotation axis of the knob switch 21, the relative positions of the first magnetic element 22 and the second magnetic element 32 can remain unchanged during the rotation of the knob body 31. This ensures that the magnetic force between the second magnetic element 32 and the first magnetic element 22 remains constant, which is beneficial to improving the reliability of the mechanical knob 10.

[0097] The mechanical knob 10 of this utility model embodiment is provided with a first magnetic element 22 connected to the knob switch 21 and a second magnetic element 32 connected to the knob body 31. The second magnetic element 32 and the first magnetic element 22 generate a magnetic attraction force, so that when the knob body 31 rotates, the knob switch 21 can rotate with the knob body 31, thus preventing water from entering the knob switch 21.

[0098] like Figure 9 As shown, the humidifier 100 of this utility model embodiment includes the fixed base 1 described in any of the above embodiments and the mechanical knob 10 described in any of the above embodiments. The switch assembly 2 and the knob assembly 3 are disposed on opposite sides of the fixed base 1.

[0099] By setting the humidifier 100 to include the mechanical knob 10 of the above embodiment, it is possible to prevent water from entering the switch assembly 2 when water is added to the humidifier 100 and water splashes onto the knob body 31, thereby preventing damage to the humidifier 100 and improving the safety of the mechanical knob 10.

[0100] Optionally, such as Figure 9 As shown, the humidifier 100 includes a main unit, which includes an annular housing forming a mounting base 1. A switch assembly 2 is disposed on the inner side of the housing, and a knob assembly 3 is disposed on the outer side of the housing.

[0101] The circuit board 24 can be connected to the housing to realize the connection between the switch assembly 2 and the housing, that is, the switch assembly 2 is connected to the housing through the circuit board 24.

[0102] By placing the switch assembly 2 inside the housing and the knob assembly 3 outside the housing, the switch assembly 2 can be enclosed inside the housing, ensuring the airtightness of the switch assembly 2, effectively preventing water from entering the switch assembly 2, effectively preventing damage to the humidifier 100, and improving the safety of the mechanical knob 10.

[0103] Optionally, such as Figure 1 , Figure 6 and Figure 8 As shown, the mounting base 1 is provided with a connecting post 11 protruding toward the knob assembly 3, and the knob body 31 is rotatably connected to the connecting post 11.

[0104] By setting a connecting post 11 on the fixed base 1, the knob body 31 is connected to the connecting post 11, which can improve the connection reliability between the knob body 31 and the connecting post 11 and improve the reliability of the mechanical knob 10.

[0105] Optionally, the connecting column 11 is provided with a slot 111, and the knob body 311 is provided with a buckle 3111, which engages with the slot 111.

[0106] For example, the slot of the slot 111 faces forward, and the buckle 3111 is set on the rear side of the knob body 311. The buckle 3111 engages with the slot 111 to limit the knob body 31 and the fixing seat 1 in the front-back direction.

[0107] The buckle 3111 engages with the slot 111, facilitating the installation and removal of the knob body 31.

[0108] Optionally, such as Figure 1 , Figure 6 and Figure 8 As shown, the mounting base 1 has a receiving groove 12 with the opening facing the knob assembly 3. A part of the knob body 31 is disposed inside the receiving groove 12, and another part of the knob body 31 is disposed outside the receiving groove 12.

[0109] For example, the opening of the receiving groove 12 faces forward, the rear part of the knob body 31 is disposed inside the receiving groove 12, and the other part of the knob body 31 is disposed outside the receiving groove 12.

[0110] By providing a receiving groove 12 on the fixed base 1 and placing a portion of the knob body 31 within the receiving groove 12, it is beneficial to reduce the volume of the mechanical knob 10.

[0111] Optionally, the main unit also includes a base 4, which is connected to the mounting base 1.

[0112] The base 4 and the fixing seat 1 can be snapped together.

[0113] Optionally, the humidifier 100 includes a water tank 20, which is detachably connected to the main unit.

[0114] For example, such as Figure 9 As shown, the water tank 20 is located on the upper side of the main unit.

[0115] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0117] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0118] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0119] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0120] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A mechanical knob, characterized in that, The switch assembly comprises a knob switch, a first magnetic part connected with the knob switch, and a rotating rod, one end of the rotating rod is rotationally connected with the knob switch, and the first magnetic part is connected with the other end of the rotating rod. The knob assembly comprises a knob body and a second magnetic part connected with the knob body. The second magnetic part is used for adsorbing the first magnetic part, so as to drive the knob switch to rotate synchronously when the knob body rotates. The rotating rod is arranged on the side of the knob switch close to the knob assembly.

2. The mechanical knob of claim 1, wherein, The knob switch comprises a switch body and a rotation stopping protrusion arranged on the side of the switch body close to the knob assembly, the rotating rod is provided with a rotation stopping hole, and the rotation stopping protrusion is inserted into the rotation stopping hole and rotationally matched with the rotation stopping hole.

3. The mechanical knob of claim 2, wherein, The first magnetic part is arranged on the side of the rotating rod close to the knob assembly.

4. The mechanical knob of claim 1, wherein, The rotating rod is provided with a first mounting groove, and the first magnetic part is fixed in the first mounting groove.

5. The mechanical knob of claim 1, wherein, The switch assembly further comprises a circuit board, and the knob switch is connected with the circuit board.

6. The mechanical knob of any of claims 1-5, wherein, The second magnetic part is arranged on the side of the knob body close to the switch assembly.

7. The mechanical knob of any one of claims 1-5, wherein, The knob body is provided with a second mounting groove, and the second magnetic part is fixed in the second mounting groove.

8. The mechanical knob of any one of claims 1-5, wherein, The knob body comprises a knob main body and a mounting column, the knob main body is a hollow structure, the mounting column is arranged in the knob main body, and the second mounting groove is arranged on the mounting column.

9. The mechanical knob of claim 8, wherein, The second magnetic part is arranged correspondingly to the first magnetic part.

10. The mechanical knob of any one of claims 1-5, wherein, The rotation axis of the knob body coincides with the rotation axis of the knob switch.

11. The mechanical knob of any one of claims 1-5, wherein, The switch assembly and the knob assembly are arranged on opposite sides of the fixing seat.

12. A humidifier comprising: The humidifier comprises a main machine, the main machine comprises an annular shell, the shell forms the fixing seat, the switch assembly is arranged on the inner side of the shell, and the knob assembly is arranged on the outer side of the shell. The fixing seat is provided with a connecting column protruding towards the knob assembly, and the knob body is rotationally connected with the connecting column. The fixing seat is provided with a receiving groove with a slot opening towards the knob assembly, part of the knob body is arranged in the receiving groove, and the other part of the knob body is arranged outside the receiving groove.

13. The humidifier of claim 12, wherein, ​ 14. The humidifier of claim 12, wherein, ​ 15. The humidifier of claim 12, wherein, ​

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