Beauty instrument

Abstract

The embodiment of the utility model provides a beauty instrument, and belongs to the technical field of beauty, liquid used for transmitting ultrasonic energy is contained in a working cavity, an ultrasonic transducer is located in the working cavity, and a transmission system comprises a first transmission assembly connected with the ultrasonic transducer and a second transmission assembly connected with the first transmission assembly. The first transmission assembly is at least partially located in the working cavity, the sealing piece is in sealing contact with the transmission system and the main body so as to restrain liquid in the working cavity from leaking from one side of the sealing piece to the other side, the second transmission assembly is at least partially located on the side, away from the working cavity, of the sealing piece, and the motor is installed on the main body and located outside the working cavity. And the motor drives the transmission system to drive the ultrasonic transducer to move in the working cavity. The sealing piece inhibits liquid in the working cavity from leaking from one side of the sealing piece to the other side, the part, located on the side, away from the working cavity, of the sealing piece, of the second transmission assembly does not make contact with the liquid basically, and the possibility that the second transmission assembly is rusted is reduced.

Description

Technical Field

[0001] The present application relates to the field of beauty technology, and in particular to a beauty instrument. Background Art

[0002] In the related art, there is liquid in the working chamber of the beauty instrument, and the transmission system for transmitting the power of the motor is located in the working chamber and is immersed in the liquid, so the transmission system is prone to rust. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a beauty instrument that reduces the possibility of rust in the transmission system.

[0004] The present application provides a beauty instrument, comprising:

[0005] A main body having a working chamber containing a liquid for transmitting ultrasonic energy;

[0006] An ultrasonic transducer is located in the working chamber;

[0007] a transmission system, comprising a first transmission assembly connected to the ultrasonic transducer and a second transmission assembly connected to the first transmission assembly, wherein the first transmission assembly is at least partially located in the working chamber;

[0008] a sealing member, respectively in sealing contact with the transmission system and the main body, so as to inhibit leakage of liquid in the working chamber from one side of the sealing member to the other side, wherein the second transmission assembly is at least partially located on a side of the sealing member away from the working chamber;

[0009] A motor is installed on the main body, the motor is located outside the working chamber, and the motor drives the transmission system to drive the ultrasonic transducer to move in the working chamber.

[0010] In one embodiment, the lubricating material for lubricating the second transmission assembly is located on a side of the sealing member facing away from the working chamber.

[0011] In one embodiment, the main body forms a lubrication cavity, the lubrication cavity is located on a side of the seal away from the working cavity, the second transmission assembly is located in the lubrication cavity, and the lubrication cavity contains lubricating material for lubricating the second transmission assembly.

[0012] In one embodiment, the motor is located outside the lubrication cavity.

[0013] In one embodiment, the main body has a partition portion for partitioning the working chamber, the sealing member is located in the working chamber, and the sealing member abuts against the partition portion along the axial direction on a side facing the second transmission assembly.

[0014] In one embodiment, a part of the first transmission assembly is located outside the working cavity and is connected to the second transmission assembly, and the seal is in sealing contact with the first transmission assembly and the main body respectively.

[0015] In one embodiment, the surface of the cavity wall of the working cavity includes a first toroidal surface and a second toroidal surface arranged at intervals, and the first transmission assembly includes:

[0016] A first transmission shaft, arranged on the second transmission assembly, and the seal sleeved on the first transmission shaft is a first seal in sealing contact with the first transmission shaft and the first toroidal surface respectively;

[0017] A first support, located in the working cavity, the first support is installed on the first transmission shaft, and the direction in which the first transmission shaft drives the first support to move is the first direction;

[0018] A second support, located in the working cavity, the second support is movably arranged on the first support, and the second support is connected to the ultrasonic transducer;

[0019] A second transmission shaft, arranged on the second transmission assembly, the direction in which the second transmission shaft drives the second support to move is a second direction arranged crosswise with the first direction, and the seal sleeved on the second transmission shaft is a second seal in sealing contact with the second transmission shaft and the second toroidal surface respectively.

[0020] In one embodiment, the first transmission shaft is a lead screw in threaded transmission with the first support, the main body has a limiting part located in the working cavity, and the first support is movably arranged on the limiting part to limit the first support from rotating along with the lead screw. The second support is formed with a rack extending along the second direction, and the second transmission shaft is formed with a first gear meshing with the rack.

[0021] In one embodiment, the motor corresponding to the first transmission shaft drives the corresponding second transmission assembly to drive the first transmission shaft to rotate, the motor corresponding to the second transmission shaft drives the corresponding second transmission assembly to drive the second transmission shaft to rotate, and the second transmission assemblies arranged on the first transmission shaft and the second transmission shaft are arranged at intervals.

[0022] In one embodiment, the transmission structure of the second transmission assembly is a gear transmission.

[0023] In one embodiment, the seal is a water seal ring.

[0024] An embodiment of the present application provides a beauty instrument. The seal is in sealing contact with the transmission system and the main body respectively to inhibit the leakage of the liquid in the working cavity from one side of the seal to the other side. The motor is located outside the working cavity, and the liquid will not leak from the working cavity, so it will not affect the motor. At least a part of the second transmission component is located on the side of the seal away from the working cavity, and the part of the second transmission component located on the side of the seal away from the working cavity will basically not come into contact with the liquid, reducing the possibility of rust on the second transmission component. Moreover, during the transmission process of the second transmission component, the part of the second transmission component located outside the working cavity does not come into contact with the liquid, and the second transmission component is less affected by fluid resistance, reducing the transmission resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of the beauty instrument according to the embodiment of the present application, showing some structures of the beauty instrument;

[0026] Figure 2 is an assembly schematic diagram of the first transmission shaft and the second transmission shaft of the beauty instrument according to the embodiment of the present application, showing some structures of the beauty instrument;

[0027] Figure 3 is Figure 2 the sectional view taken along line A-A in

[0028] Figure 4 is Figure 2 the sectional view taken along line B-B in

[0029] DESCRIPTION OF THE REFERENCE NUMERALS

[0030] 1, main body; 11, working cavity; 12, lubricating cavity; 13, first toroidal surface; 14, second toroidal surface; 15, limiting part; 16, separating part; 2, ultrasonic transducer; 3, transmission system; 31, first transmission component; 311, first transmission shaft; 312, second transmission shaft; 313, first support; 314, second support; 315, first gear; 316, rack; 32, second transmission component; 4, seal; 41, first seal; 42, second seal; 5, motor; 6, housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] Each specific technical feature described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of each specific technical feature in this application will not be described separately.

[0033] In the following description, the terms "first / second / ..." involved are only used to distinguish different objects and do not indicate that there are any similarities or connections between the objects. It should be understood that the orientation descriptions "above", "below", "outside", and "inside" involved are all in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which may or may not be the left and right directions in the normal use state.

[0034] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element. "Plurality" means greater than or equal to two.

[0035] In the related art, a motor is provided on a beauty instrument to drive an ultrasonic transducer to move. The ultrasonic transducer needs to be arranged in a liquid to transmit ultrasonic energy. The liquid entering the motor will cause damage to the motor. The transmission system for transmitting the kinetic energy of the motor to the ultrasonic transducer is arranged in the working cavity, and the transmission system is immersed in the liquid, which is prone to rust.

[0036] In view of this, an embodiment of the present application provides a beauty instrument. Please refer to Figures 1 to 4 , the beauty instrument includes a main body 1, an ultrasonic transducer 2, a transmission system 3, a seal 4 and a motor 5. The main body 1 has a working cavity 11. The working cavity 11 contains a liquid for transmitting ultrasonic energy. The ultrasonic transducer 2 is located in the working cavity 11. The transmission system 3 includes a first transmission component 31 connected to the ultrasonic transducer 2 and a second transmission component 32 connected to the first transmission component 31. At least a part of the first transmission component 31 is located in the working cavity 11. The seal 4 is in sealing contact with the transmission system 3 and the main body 1 respectively to prevent the liquid in the working cavity 11 from leaking from one side of the seal 4 to the other side. At least a part of the second transmission component 32 is located on the side of the seal 4 away from the working cavity 11. The motor 5 is installed on the main body 1. The motor 5 is located outside the working cavity 11. The motor 5 drives the transmission system 3 to drive the ultrasonic transducer 2 to move in the working cavity 11.

[0037] It should be noted that the second transmission component 32 is at least partially disposed on the side of the seal 4 away from the working chamber 11, the second transmission component 32 is entirely located on the side of the seal 4 away from the working chamber 11, or the second transmission component 32 is partially located inside the working chamber 11 and the other part is located outside the working chamber 11. When the second transmission component 32 is partially located inside the working chamber 11 and the other part is located outside the working chamber 11, only the part of the second transmission component 32 located inside the working chamber 11 is connected to the first transmission component 31, and the part of the second transmission component 32 located outside the working chamber 11 is the working main body 1 of the second transmission component 32.

[0038] Exemplarily, the liquid for transmitting ultrasonic energy is water.

[0039] Exemplarily, the side of the seal 4 away from the working chamber 11 is outside the working chamber 11.

[0040] In the embodiment of the present application, the seal 4 is in sealed contact with the transmission system 3 and the main body 1 respectively to inhibit the liquid in the working chamber 11 from leaking from one side of the seal 4 to the other side. The motor 5 is located outside the working chamber 11, and the liquid will not leak from the working chamber 11 and will not affect the motor 5. The second transmission component 32 is at least partially located on the side of the seal 4 away from the working chamber 11, and the part of the second transmission component 32 located on the side of the seal 4 away from the working chamber 11 will basically not contact the liquid, reducing the possibility of rust formation on the second transmission component 32. Moreover, during the transmission process of the second transmission component 32, the part of the second transmission component 32 located outside the working chamber 11 does not contact the liquid, and the second transmission component 32 is less affected by the fluid resistance, reducing the transmission resistance.

[0041] For the sake of convenience of description, as Figures 2 to 4 shown, the first direction is the direction indicated by the arrow R1, and the second direction is the direction indicated by the arrow R2.

[0042] In one embodiment, the lubricating material for lubricating the second transmission component 32 is located on the side of the seal 4 away from the working chamber 11.

[0043] Exemplarily, the lubricating material is lubricating oil.

[0044] In the embodiment of the present application, the seal 4 is in sealed contact with the transmission system 3 and the main body 1 respectively. The part of the second transmission component 32 located outside the working chamber 11 will not be affected by the liquid in the working chamber 11 and can be lubricated with the lubricating material, reducing the transmission resistance of the second transmission component 32 and reducing the wear of the second transmission component 32.

[0045] It can be understood that the second transmission component 32 may not be lubricated with the lubricating material.

[0046] In one embodiment, please refer to Figure 2, a lubricating cavity 12 is formed in the main body 1. The lubricating cavity 12 is located on the side of the seal 4 away from the working cavity 11. The second transmission assembly 32 is located in the lubricating cavity 12, and a lubricating material for lubricating the second transmission assembly 32 is accommodated in the lubricating cavity 12.

[0047] In the embodiment of the present application, the lubricating cavity 12 can confine the lubricating material within the lubricating cavity 12, reducing the possibility of the lubricating material flowing to the structures of the beauty instrument that do not require lubrication, and preventing the lubricating material from affecting the use of the beauty instrument.

[0048] It can be understood that the main body 1 may not be provided with the lubricating cavity 12.

[0049] In one embodiment, please refer to Figure 1 and Figure 2 , the motor 5 is located outside the lubricating cavity 12.

[0050] In the embodiment of the present application, the motor 5 is located outside the lubricating cavity 12, so that the motor 5 is not affected by the lubricating material in the lubricating cavity 12.

[0051] It can be understood that the position of the motor 5 is not limited to being outside the lubricating cavity 12. Exemplarily, part of the motor 5 is located in the lubricating cavity 12.

[0052] In one embodiment, please refer to Figure 1 and Figure 2 , the main body 1 has a partition portion 16 that partitions the working cavity 11. The seal 4 is located in the working cavity 11, and one side of the seal 4 facing the second transmission assembly 32 in the axial direction abuts against the partition portion 16.

[0053] It can be understood that the axial direction of the seal 4 is the first direction.

[0054] In the embodiment of the present application, one side of the seal 4 facing the second transmission assembly 32 in the axial direction abuts against the partition portion 16. The sealing gap between the seal 4 and the partition portion 16 is long, and the path for the liquid to flow out from the gap between the seal 4 and the partition member is long, reducing the possibility of liquid leakage from the working cavity 11 and enhancing the sealing reliability.

[0055] It can be understood that the seal 4 is not limited to being located in the working cavity 11. Exemplarily, the seal 4 is located outside the working cavity 11 and is in sealed contact with the transmission system 3 and the main body 1 respectively.

[0056] In one embodiment, please refer to Figure 1 and Figure 2 , a part of the first transmission assembly 31 is located outside the working cavity 11 and is connected to the second transmission assembly 32. The seal 4 is in sealed contact with the first transmission assembly 31 and the main body 1 respectively.

[0057] In the embodiment of the present application, a part of the first transmission assembly 31 is located outside the working chamber 11, the shaft of the second transmission assembly 32 extends outside the working chamber 11 and is connected to the second transmission assembly 32. A coupling may not be provided between the first transmission assembly 31 and the second transmission assembly 32. The second transmission assembly 32 is entirely located outside the working chamber 11 and is not in contact with the liquid, which is beneficial to further reduce the possibility of corrosion of the second transmission assembly 32.

[0058] It can be understood that the first transmission assembly 31 is not limited to being partially located inside the working chamber 11. Exemplarily, the first transmission assembly 31 is entirely located inside the working chamber 11, and a part of the second transmission assembly 32 is located inside the working chamber 11 and is connected to the first transmission assembly 31.

[0059] In one embodiment, please refer to Figures 1 to 4 , the wall surface of the working chamber 11 includes a first toroidal surface 13 and a second toroidal surface 14 arranged at intervals. The first transmission assembly 31 includes a first transmission shaft 311, a first support 313, a second support 314, and a second transmission shaft 312. The first transmission shaft 311 is disposed on the second transmission assembly 32. The seal 4 sleeved on the first transmission shaft 311 is a first seal 41 that is in sealing contact with the first transmission shaft 311 and the first toroidal surface 13 respectively. The first support 313 is located inside the working chamber 11. The first support 313 is mounted on the first transmission shaft 311. The direction in which the first transmission shaft 311 drives the first support 313 to move is the first direction. The second support 314 is located inside the working chamber 11. The second support 314 is movably disposed on the first support 313. The second support 314 is connected to the ultrasonic transducer 2. The second transmission shaft 312 is disposed on the second transmission assembly 32. The direction in which the second transmission shaft 312 drives the second support 314 to move is a second direction that is cross-arranged with the first direction. The seal 4 sleeved on the second transmission shaft 312 is a second seal 42 that is in sealing contact with the second transmission shaft 312 and the second toroidal surface 14 respectively.

[0060] It can be understood that the second support 314 is movably disposed on the first support 313. The first support 313 can drive the second support 314 to move together in the first direction, and the second support 314 can also move relative to the second support 314 in the second direction.

[0061] In an embodiment of the present application, the first transmission shaft 311 straddles the wall of the working chamber 11 and is connected to the second transmission assembly 32. The second transmission shaft 312 straddles the chamber wall of the working chamber 11 and is connected to the second transmission assembly 32. The first seal 41 inhibits the leakage of the liquid in the working chamber 11 from the gap between the first transmission shaft 311 and the first toroidal surface 13. The second seal 42 inhibits the leakage of the liquid in the working chamber 11 from the gap between the second transmission shaft 312 and the second toroidal surface 14. The first transmission shaft 311 drives the first support 313 to move in the first direction. The second transmission shaft 312 drives the second support 314 to move in the second direction. The second support 314 is movably arranged on the first support 313. The second support 314 moves both in the first direction and in the second direction. The ultrasonic transducer 2 is connected to the second support 314, so that the ultrasonic transducer 2 moves both in the first direction and in the second direction, increasing the moving path of the ultrasonic transducer 2 in the working chamber 11 in a limited space.

[0062] It can be understood that the first transmission assembly 31 is not limited to being provided with the first transmission shaft 311 and the second transmission shaft 312. Exemplarily, the first transmission assembly 31 is only provided with the first transmission shaft 311.

[0063] In one embodiment, please refer to Figures 1 to 4 , the first transmission shaft 311 is a lead screw that is in threaded transmission with the first support 313. The main body 1 has a limiting portion 15 located in the working chamber 11. The first support 313 is movably arranged on the limiting portion 15 to limit the first support 313 from rotating following the lead screw. The second support 314 is formed with a rack 316 extending in the second direction. The second transmission shaft 312 is formed with a first gear 315 that meshes with the rack 316.

[0064] In an embodiment of the present application, the first support 313 is in threaded transmission with the lead screw. The rotation of the lead screw drives the first support 313 to move. The limiting portion 15 restricts the first support 313 from rotating following the lead screw, so that the first support 313 moves in the first direction. The second transmission shaft 312 rotates, and the meshing of the first gear 315 and the rack 316 of the second support 314 drives the second support 314 to move in the second direction. The rotation of the first transmission shaft 311 is converted into the movement of the first support 313 and the second support 314 in the first direction. The rotation of the second transmission shaft 312 is converted into the movement of the second support 314 in the second direction. The ultrasonic transducer 2 is connected to the second support 314, realizing the movement of the ultrasonic transducer 2 in the working chamber 11 in the first direction and the second direction.

[0065] It can be understood that the first transmission shaft 311 is not limited to being a lead screw, and the second transmission shaft 312 is not limited to being formed with a first gear 315. Exemplarily, the first transmission shaft 311 is formed with a first gear 315, and the second transmission shaft 312 is a lead screw.

[0066] In one embodiment, the limiting part 15 is a guide rod arranged in the working cavity 11.

[0067] In one embodiment, please refer to Figure 3 , the limiting part 15 is a protruding structure on the cavity wall of the working cavity 11.

[0068] In one embodiment, please refer to Figures 1 to 4 , the motor 5 corresponding to the first transmission shaft 311 drives the corresponding second transmission assembly 32 to drive the first transmission shaft 311 to rotate, the motor 5 corresponding to the second transmission shaft 312 drives the corresponding second transmission assembly 32 to drive the second transmission shaft 312 to rotate, and the second transmission assemblies 32 arranged on the first transmission shaft 311 and the second transmission assemblies 32 arranged on the second transmission shaft 312 are arranged at intervals.

[0069] In the embodiment of the present application, the first transmission shaft 311 is correspondingly provided with a second transmission assembly 32 and a motor 5, the second transmission shaft 312 is correspondingly provided with a second transmission assembly 32 and a motor 5, the second transmission assemblies 32 arranged on the first transmission shaft 311 and the second transmission assemblies 32 arranged on the second transmission shaft 312 are arranged at intervals, the power transmission of the first transmission shaft 311 and the second transmission shaft 312 does not interfere with each other, and the power transmission of the first transmission shaft 311 and the second transmission shaft 312 is simple and reliable.

[0070] It can be understood that the first transmission shaft 311 and the second transmission shaft 312 are not limited to being correspondingly provided with the second transmission assembly 32 respectively. Exemplarily, the first transmission shaft 311 and the second transmission shaft 312 are connected to the same second transmission assembly 32.

[0071] In one embodiment, please refer to Figure 1 , the transmission structure of the second transmission assembly 32 is a gear transmission.

[0072] In the embodiment of the present application, the second transmission assembly 32 connects the motor 5 and the first transmission assembly 31. The installation space of the motor 5 and the first transmission assembly 31 is limited. The gear transmission of the second transmission assembly 32 can save space, and the positions of the first transmission assembly 31, the second transmission assembly 32 and the motor 5 are reasonably set to make the overall structure of the beauty instrument compact.

[0073] It can be understood that the transmission structure of the second transmission assembly 32 is not limited to a gear transmission. Exemplarily, the transmission structure of the second transmission assembly 32 is a chain transmission. Exemplarily, the transmission structure of the second transmission assembly 32 is a link transmission.

[0074] In one embodiment, please refer to Figure 2 , the seal 4 is a water seal ring.

[0075] In the embodiment of the present application, the water seal ring is in sealed contact with the drive system 3 and the main body 1 respectively. The water seal ring can make use of the liquid pressure in the working chamber 11 to contact the drive system 3 more closely, and has a good sealing effect.

[0076] It can be understood that the seal 4 is not limited to being a water seal ring. Exemplarily, the seal 4 is an oil seal. Exemplarily, the seal 4 is a rubber ring.

[0077] In one embodiment, the second drive assembly 32 is a speed reducer.

[0078] In the embodiment of the present application, the second drive assembly 32 is a speed reducer. The speed reducer reduces the rotational torque output by the motor 5 and then outputs it to the first drive assembly 31. The seal 4 is arranged on the first drive assembly 31. The increased torque of the seal 4 acts on the first drive assembly 31. The speed reducer and the first drive assembly 31 are connected to reduce the increased torque of the seal 4 in equal proportion. The increased torque of the seal 4 acts on the output end of the motor 5 after being reduced, which has less impact on the motor 5 and avoids all the increased torque of the seal ring acting on the motor 5.

[0079] In one embodiment, please refer to Figure 1 , the beauty instrument further includes a housing 6. The main body 1, the ultrasonic transducer 2, the drive system 3, the seal 4 and the motor 5 are all located in the space enclosed by the housing 6.

[0080] In the description of the present application, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present application and the features of different embodiments or examples.

[0081] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A beauty instrument, characterized in that, Comprising: A main body having a working chamber, wherein a liquid for transmitting ultrasonic energy is accommodated in the working chamber; An ultrasonic transducer located in the working chamber; A transmission system including a first transmission component connected to the ultrasonic transducer and a second transmission component connected to the first transmission component, wherein at least a part of the first transmission component is located in the working chamber; A seal in sealing contact with the transmission system and the main body respectively to inhibit the liquid in the working chamber from leaking from one side of the seal to the other side, and at least a part of the second transmission component is located on the side of the seal away from the working chamber; A motor mounted on the main body, the motor being located outside the working chamber, and the motor driving the transmission system to drive the ultrasonic transducer to move in the working chamber.

2. The beauty instrument according to claim 1, characterized in that, A lubricating material for lubricating the second transmission component is located on the side of the seal away from the working chamber.

3. The beauty instrument according to claim 1, characterized in that The main body forms a lubricating chamber located on the side of the seal away from the working chamber, the second transmission component is located in the lubricating chamber, and a lubricating material for lubricating the second transmission component is accommodated in the lubricating chamber.

4. The beauty instrument according to claim 3, characterized in that The motor is located outside the lubricating chamber.

5. The beauty instrument according to claim 1, characterized in that The main body has a partition portion separating the working chamber, the seal is located in the working chamber, and one side of the seal facing the second transmission component in the axial direction abuts against the partition portion.

6. The beauty instrument according to any one of claims 1 to 5, characterized in that, A part of the first transmission component is located outside the working chamber and connected to the second transmission component, and the seal is in sealing contact with the first transmission component and the main body respectively.

7. The beauty instrument according to any one of claims 1 to 5, characterized in that The surface of the chamber wall of the working chamber includes a first toroidal surface and a second toroidal surface arranged at intervals, and the first transmission component includes: A first transmission shaft provided on the second transmission component, and the seal sleeved on the first transmission shaft is a first seal in sealing contact with the first transmission shaft and the first toroidal surface respectively; A first support located in the working chamber, the first support is mounted on the first transmission shaft, and the direction in which the first transmission shaft drives the first support to move is the first direction; A second support located in the working chamber, the second support is movably arranged on the first support, and the second support is connected to the ultrasonic transducer; A second transmission shaft provided on the second transmission component, the direction in which the second transmission shaft drives the second support to move is a second direction intersecting with the first direction, and the seal sleeved on the second transmission shaft is a second seal in sealing contact with the second transmission shaft and the second toroidal surface respectively.

8. The beauty instrument according to claim 7, characterized in that, The first transmission shaft is a lead screw in threaded transmission with the first support, the main body has a limiting portion located in the working chamber, and the first support is movably arranged on the limiting portion to limit the first support from rotating with the lead screw. The second support forms a rack extending in the second direction, and the second transmission shaft forms a first gear meshing with the rack.

9. The beauty instrument according to claim 7, characterized in that, The motor corresponding to the first transmission shaft drives the corresponding second transmission assembly to drive the first transmission shaft to rotate, and the motor corresponding to the second transmission shaft drives the corresponding second transmission assembly to drive the second transmission shaft to rotate. The second transmission assemblies provided on the first transmission shaft and the second transmission assemblies provided on the second transmission shaft are arranged at intervals.

10. The beauty instrument according to any one of claims 1 to 5, characterized in that, The transmission structure of the second transmission assembly is a gear transmission.

11. The beauty instrument according to any one of claims 1 to 5, characterized in that, The seal is a water seal ring.

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