Skin care equipment

Abstract

The utility model discloses skin care equipment. The skin care equipment comprises a shell, a transmission shaft assembly, a transducer assembly and a second driving assembly, the shell is provided with a sound emitting area; the transmission shaft assembly is movably arranged in the shell and comprises a transmission shaft and a transmission part, the transmission part comprises an installation shaft, the transmission part is installed on the transmission shaft, the transmission shaft extends along the first axis, the installation shaft is arranged on the side, close to the sound making area, of the transmission part, and the installation shaft inclines relative to the first axis; the transducer assembly is mounted on the mounting shaft, so that an ultrasonic focal point of the transducer assembly is staggered from the first axis, and the ultrasonic focal point of the transducer assembly penetrates through the sound emitting area and is used for being injected into the skin to be treated; the second driving assembly is in transmission connection with the transmission shaft and used for driving the transmission shaft to rotate around the first axis so as to drive the ultrasonic focus of the transducer assembly to rotate around the first axis. The structure for driving the transducer assembly to move can be simplified.

Description

Technical Field

[0001] This application belongs to the field of beauty technology, and particularly relates to a skin care device. Background Art

[0002] Ultrasonic skin care, such as microfocused ultrasound (MFU) beauty technology, is a common skin care method in the medical aesthetics industry. When performing skin care, focused ultrasound is formed by an ultrasonic transducer inside an ultrasonic skin care device to form skin care points under the skin, thereby achieving effects such as anti-aging and lifting.

[0003] Specifically, the ultrasonic skin care device exceeds the depth limitation of traditional non-surgical devices and penetrates into the SMAS fascia layer. The ultrasonic energy accumulates at the skin care points, generating high temperature, causing the target tissue in the lower layer of the skin to contract under high temperature, and stimulating collagen regeneration, so as to achieve the effects of anti-aging and wrinkle removal, firming and lifting, and contour shrinking. For example, the energy wave generated by the ultrasonic transducer directly acts on the fascia layer to make the fascia layer contract.

[0004] In related technologies, some ultrasonic skin care devices drive the movement of the focus of the ultrasonic transducer to achieve skin care for different parts of the skin to be treated. However, the driving structure is relatively complex. Summary of the Utility Model

[0005] An embodiment of this application provides a skin care device, which can simplify the structure for driving the movement of the transducer assembly.

[0006] An embodiment of this application provides a skin care device, including:

[0007] A housing, which is provided with a sound-emitting area;

[0008] A drive shaft assembly, which is movably arranged inside the housing. The drive shaft assembly includes a drive shaft and a transmission member. The transmission member includes a mounting shaft. The transmission member is mounted on the drive shaft. The drive shaft extends along a first axis. The mounting shaft is arranged on a side of the transmission member close to the sound-emitting area, and the mounting shaft is inclined to the first axis;

[0009] A transducer assembly, which is mounted on the mounting shaft. The transducer assembly is inclined to the first axis so that the ultrasonic focus of the transducer assembly is misaligned with the first axis, and the ultrasonic focus of the transducer assembly passes through the sound-emitting area for shooting into the skin to be treated; and

[0010] The second driving component is in transmission connection with the transmission shaft. The second driving component is configured to drive the transmission shaft to rotate about the first axis, so as to drive the ultrasonic focus of the transducer component to rotate about the first axis.

[0011] In the embodiment of the present application, by driving the transmission shaft to rotate about the first axis through the second driving component, the ultrasonic focus of the transducer component can be driven to rotate around the first axis, so that the ultrasonic focus of the transducer component can be located at different positions inside the skin to be treated, thereby realizing ultrasonic skin care for different parts inside the skin to be treated. It can be seen that the embodiment of the present application can simplify the structure for driving the movement of the transducer component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the skin care device provided by the embodiment of the present application.

[0013] Figure 2 Figure 1 A sectional view of the skin care device shown along the A-A direction.

[0014] Figure 3 is Figure 2 A schematic diagram of the first installation structure of the transmission shaft component and the transducer component shown.

[0015] Figure 4 is Figure 2 A schematic diagram of the second installation structure of the transmission shaft component and the transducer component shown.

[0016] Figure 5 is Figure 3 A partial enlarged view at Y in

[0017] Figure 6 is Figure 3 An exploded view of the transmission shaft component and the transducer component shown.

[0018] Figure 7 is Figure 2 A sectional view of a kind of medium housing of the skin care device shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0020] Please refer to Figures 1 to 3, an embodiment of the present application provides a skin care device, including a housing 100, a drive shaft assembly 300, a transducer assembly 200, and a second drive assembly 43.

[0021] The housing 100 is provided with a sound-emitting area 111. The drive shaft assembly 300 is disposed within the housing 100. The drive shaft assembly 300 includes a drive shaft 31 and a transmission member 32. The transmission member 32 includes a mounting shaft 322, and the transmission member 32 is mounted on the drive shaft 31. The drive shaft 31 extends along a first axis L1, and the mounting shaft 322 is disposed on a side of the transmission member 32 close to the sound-emitting area 111, and the mounting shaft 322 is inclined with respect to the first axis L1. The transducer assembly 200 is mounted on the mounting shaft 322, and the transducer assembly 200 is inclined with respect to the first axis L1, so that the ultrasonic focus of the transducer assembly 200 is misaligned with the first axis L1. The ultrasonic focus of the transducer assembly 200 passes through the sound-emitting area 111 for injecting into the skin to be treated. The second drive assembly 43 is in transmission connection with the drive shaft 31, and the second drive assembly 43 is configured to drive the drive shaft 31 to rotate around the first axis L1, so as to drive the ultrasonic focus of the transducer assembly to rotate around the first axis L1.

[0022] Wherein, the ultrasonic focus of the transducer assembly 200 is a focal point formed by focusing the ultrasonic energy generated by the transducer assembly 200.

[0023] Then, by driving the drive shaft 31 to rotate around the first axis L1 by the second drive assembly 43, the ultrasonic focus of the transducer assembly 200 can be driven to rotate around the first axis L1, so that the ultrasonic focus of the transducer assembly 200 can be located at different positions inside the skin to be treated, thereby realizing ultrasonic skin care for different parts inside the skin to be treated.

[0024] It can also be understood that in the related art, in order to drive the ultrasonic focus of the transducer assembly 200 to move in a plane, two different motors are often provided. One motor drives the transducer assembly 200 to move in the X direction in the X-Y plane, and the other motor drives the transducer assembly 200 to move in the X direction in the Y plane. In contrast, in the embodiment of the present application, after the transducer assembly 200 is inclined by the mounting shaft 322, only one second drive assembly 43 is used to drive the focus of the inclined transducer assembly 200 to rotate around the first axis L1 in a plane. Thus, it can be seen that the embodiment of the present application can simplify the structure for driving the movement of the transducer assembly 200.

[0025] It can also be understood that by means of the inclined setting, one end of the transducer assembly 200 facing away from the sound-emitting area 111 can be made to approach the first axis L1, thereby reserving more space for arranging other structures, which is conducive to the miniaturization design of the skin care device; it can also reduce the movement amplitude of the transducer assembly 200, thereby reducing the pressure change amplitude in the medium chamber to be introduced later.

[0026] It should be noted that when the skin care device is working, ultrasonic foci continuously distributed around the first axis L1 can be formed, or discontinuous ultrasonic foci distributed around the first axis L1 can be formed.

[0027] In some embodiments, the transducer assembly 200 is fixedly arranged on the transmission shaft assembly 300 without relative rotation and movement, thereby improving the reliability of the installation of the transducer assembly 200. However, during the process of the transmission shaft assembly 300 driving the transducer assembly 200 to move, the power cord connected to the transducer assembly 200 will get entangled, ultimately resulting in the jamming of the transmission shaft assembly 300.

[0028] As Figure 3 shown, based on this, in order to avoid the power cord connected to the transducer assembly 200 from getting entangled, in the first embodiment, the transducer assembly 200 is rotatably mounted on the mounting shaft 322 around the second axis L2, so as to enable the transducer assembly 200 to rotate relative to the transmission shaft assembly 300 around the second axis L2 during the process of the transmission shaft assembly 300 driving the transducer assembly 200 to move, so as to avoid entanglement. That is, by changing the non-rotatable fixed connection mode between the transducer assembly 200 and the transmission shaft assembly 300 to a rotatable connection mode around the second axis L2, entanglement is avoided.

[0029] Exemplarily, the transducer assembly 200 (such as the ultrasonic transducer 21) is provided with a first electrical connection terminal 211 for connecting an electrical connection line. During the process of the transmission shaft assembly 300 driving the transducer assembly 200 to move, the transducer assembly 200 can rotate relative to the transmission shaft assembly 300 around the second axis L2 so that the first electrical connection terminal 211 can always face the same side in the circumferential direction of the first axis L1 during the movement of the transducer assembly 200, so as to avoid entanglement. That is, to avoid the power cord connected to the transducer assembly 200 from winding around the transmission shaft assembly 300 or the circumferential direction of the transducer assembly 200, resulting in entanglement.

[0030] In some embodiments, the second axis L2 can be the axis of the ultrasonic transducer 21, or the second axis L2 is parallel to the axis of the ultrasonic transducer 21, and the embodiments of the present application do not limit this.

[0031] Please continue to refer to Figure 4, Optionally, in a second implementation manner to avoid the power cord connected to the transducer assembly 200 from getting entangled, the transmission shaft 31 has a lead hole 311 extending along the extension direction of the first axis L1, and the electrical connection line connected to the transducer assembly 200 is led out from the lead hole 311 to avoid entanglement during the process of the transmission shaft 31 driving the transducer assembly 200 to rotate. That is, during the process of the transmission shaft assembly 300 driving the transducer assembly 200 to rotate, it is possible to avoid the power cord connected to the transducer assembly 200 from winding around the outer peripheral side of the transmission shaft assembly 300.

[0032] Exemplarily, the skin care device may include a first electrical connection line 23. One end of the first electrical connection line 23 is connected to the first electrical connection terminal 211 of the transducer assembly 200, and the other end is at least partially located in the lead hole 311. The transmission shaft assembly 300 may be provided with a second electrical connection terminal 312, the second electrical connection terminal 312 is electrically connected to the other end of the first electrical connection line 23, the transmission shaft assembly 300 further includes an electrical connection structure, the electrical connection structure may be connected to the circuit board of the skin care device, and the second electrical connection terminal 312 may be rotatably and cooperatively electrically connected to the electrical connection structure.

[0033] Optionally, the electrical connection structure may be a socket having a circular and / or annular jack, and the socket is provided inside the lead hole 311 or outside the lead hole 311 and corresponding to the lead hole 311.

[0034] Optionally, the electrical connection structure may be an annular conductive portion 313.

[0035] Specifically, the annular conductive portion 313 is rotatably sleeved on the transmission shaft assembly 300 and slidably abuts against the second electrical connection terminal 312 to form an electrical connection. Further, when the transmission shaft assembly 300 rotates, the second electrical connection terminal 312 slides on the annular conductive portion 313 and can always be electrically connected to the annular conductive portion 313, and the annular conductive portion 313 may not rotate around the first axis L1, so that other power cords can be connected to the annular conductive portion 313 for power supply.

[0036] Please continue to refer to Figure 5 and Figure 6 , in some embodiments, the transmission member 32 is provided with a first support surface 321, and the first support surface 321 may be inclined to the first axis L1. The mounting shaft 322 is arranged on the first support surface 321 so that both the transducer assembly 200 and the mounting shaft 322 are inclined to the first axis L1. Further, the first support surface 321 can provide better support for the inclined transducer assembly 200 to improve the stability and reliability during the rotation of the transducer assembly 200. For example, the axis line of the ultrasonic transducer 21 may be perpendicular to the first support surface 321.

[0037] In some embodiments, the transmission member 32 is rotatably connected to the transmission shaft 31 about a third axis, so that the inclination angle between the first support surface 321 and the first axis L1 is adjustable. The extending direction of the first axis L1 and the extending direction of the mounting shaft 322 are both different from the extending direction of the third axis. Thus, by adjusting the inclination angle between the first support surface 321 and the first axis L1, the distance between the ultrasonic focus of the transducer assembly 200 and the first axis L1 can be adjusted, and further the rotation radius of the ultrasonic focus around the first axis L1 can be adjusted, so as to realize the care of a large area or a small area on the skin.

[0038] In some embodiments, the transducer assembly 200 includes a first mounting bracket 22 and an ultrasonic transducer 21, and the ultrasonic transducer 21 is mounted on the first mounting bracket 22. The first mounting bracket 22 is provided with a first mounting hole 2211. The mounting shaft 322 is rotatably mounted in the first mounting hole 2211 along a second axis L2, so that the transducer assembly 200 is rotatably mounted on the mounting shaft 322. The second axis L2 is the axis line of the mounting shaft 322, which is used to avoid wire entanglement during the process of driving the transducer assembly 200 to rotate by the transmission shaft assembly 300. Thus, through the rotational cooperation of the hole and the shaft, the rotational mounting of the transducer assembly 200 can be made more stable and reliable.

[0039] In some embodiments, the transducer assembly 200 includes a bearing 24. The bearing 24 is arranged between the mounting shaft 322 and the inner wall of the first mounting hole 2211, so that the friction force when the transducer assembly 200 rotates around the second axis L2 can be reduced, and the transducer assembly 200 can rotate more smoothly around the second axis L2.

[0040] Optionally, the transducer assembly 200 may include a slip ring sleeve 24a. The slip ring sleeve 24a is arranged between the mounting shaft 322 and the inner wall of the first mounting hole 2211, so that the friction force when the transducer assembly 200 rotates around the second axis L2 can be reduced, and the transducer assembly 200 can rotate more smoothly around the second axis L2.

[0041] Moreover, compared with the bearing 24, the slip ring sleeve 24a also has the advantage of lower cost. For example, the slip ring sleeve 24a can be a metal part. Of course, the slip ring sleeve 24a can also be made of plastic material or ceramic material with a friction coefficient lower than that of the mounting shaft 322, and the embodiments of the present application do not limit this.

[0042] The transducer assembly 200 may further include a sliding gasket 25. A sliding collar 24a is disposed between the mounting shaft 322 and the inner wall of the first mounting hole 2211. The sliding gasket 25 is sleeved outside the mounting shaft 322. One side of the sliding gasket 25 abuts against the first support surface 321, and the other side abuts against the sliding collar 24a and / or the orifice end face of the first mounting hole 2211. Thus, the friction force at the circumferential side surface of the mounting shaft 322 can be reduced by the sliding collar 24a, and the friction force at the first support surface 321 can be reduced by the sliding gasket 25, so that the transducer assembly 200 can rotate more smoothly.

[0043] The sliding gasket 25 may be a metal part. Of course, the sliding gasket 25 may also be made of a plastic material or a ceramic material with a friction coefficient lower than that of the first support surface 321, and the embodiments of the present application do not limit this.

[0044] In some embodiments, the first support surface 321 may be provided with a structural sink 3211, and the mounting shaft 322 is connected to the bottom wall of the structural sink 3211. The sliding gasket 25 abuts against the orifice end face of the structural sink 3211 and covers the orifice of the structural sink 3211. Then, during the actual manufacturing process, it is possible to avoid the formation of a protrusion at the connection between the mounting shaft 322 and the first support surface 321 that abuts against the sliding gasket 25, and further avoid the sliding gasket 25 from warping relative to the first support surface 321, so that the sliding gasket 25 can be stably mounted on the first support surface 321.

[0045] In some embodiments, the sliding collar 24a may protrude from the orifice end face of the first mounting hole 2211 facing the first support surface 321. Thus, the sliding gasket 25 is made to abut between the first support surface 321 and the sliding collar 24a, thereby reducing the contact area to further reduce the friction force at the first support surface 321.

[0046] In some embodiments, the transducer assembly 200 further includes a first fastener 26, and the first fastener 26 includes a connecting portion 261 and a pressing portion 262. The sliding collar 24a is disposed between the mounting shaft 322 and the inner wall of the first mounting hole 2211, and the sliding gasket 25 is sleeved outside the mounting shaft 322. The connecting portion 261 is connected to the mounting shaft 322 so that the pressing portion 262 presses the sliding collar 24a. A sliding ring groove is also formed between the pressing portion 262 and the first support surface 321. The hole wall of the first mounting hole 2211 is rotatably limited outside the sliding ring groove. That is, the hole wall of the first mounting hole 2211 may be partially located within the sliding ring groove to form a limit, and partially located outside the sliding ring groove.

[0047] In some embodiments, the first mounting bracket 22 has a first side surface 2212 disposed opposite to the first support surface 321, that is, the first side surface 2212 faces the first support surface 321. A side protrusion 2213 is provided on the first side surface 2212, and the first mounting hole 2211 is provided in the side protrusion 2213 and penetrates through the first mounting bracket 22. For example, the side protrusion 2213 can be a ring protrusion provided around the mounting shaft 322. Thus, the ultrasonic transducer 21 can be mounted by the rotational cooperation between the mounting shaft 322 and the side protrusion 2213.

[0048] In some embodiments, the first mounting bracket 22 is rotatably mounted on the first support surface 321 along the second axis L2. The first mounting bracket 22 has a first side surface 2212 disposed opposite to the first support surface 321 and a second side surface 2214 disposed opposite to the first side surface 2212. The ultrasonic transducer 21 is mounted on the second side surface 2214.

[0049] In some embodiments, the first side surface 2212 is provided with a first mounting hole 2211 penetrating through the first mounting bracket 22. The mounting shaft 322 is rotatably mounted in the first mounting hole 2211 along a second axis L2 inclined with respect to the first axis L1, so that the ultrasonic transducer 21 is rotatably mounted on the first support surface 321. The transducer assembly 200 further includes a first fastener 26. The first fastener 26 is fixedly connected to the mounting shaft 322 from the second side surface 2214 to limit the movement of the first mounting bracket 22 along the second axis L2 in a direction away from the first support surface 321. Thus, the first fastener 26 can be used to achieve a relatively rotatable connection between the transducer bracket and the mounting shaft 322, so as to prevent the transducer assembly 200 from falling off from the mounting shaft 322.

[0050] In some embodiments, the second side surface 2214 is a bearing surface. The bearing surface is provided with a receiving sink 2215, and the ultrasonic transducer 21 is disposed in the receiving sink 2215. Thus, the receiving sink 2215 can provide a good positioning effect on the ultrasonic transducer 21.

[0051] In some embodiments, the second side surface 2214 is a bearing surface. The bearing surface is provided with an avoidance sink 2216, and there is a gap between the bottom of the avoidance sink 2216 and the ultrasonic transducer 21. Thus, a space for mounting the first fastener 26 can be formed by the avoidance sink 2216.

[0052] For example, the avoidance sink 2216 is formed on the bottom wall of the receiving sink 2215. One end of the first fastener 26 away from the first support surface 321 is received in the avoidance sink 2216 and is spaced from the ultrasonic transducer 21. Thus, during the rotation of the first mounting bracket 22 relative to the mounting shaft 322 around the second axis L2, the ultrasonic transducer 21 is not likely to come into contact with the first fastener 26 and be worn.

[0053] In some embodiments, the first mounting bracket 22 includes a bearing portion 221 and a first engaging portion 222. The bearing portion 221 has a first side surface 2212 and a second side surface 2214, the first engaging portion 222 protrudes from the second side surface 2214, and the first engaging portion 222 engages with the ultrasonic transducer 21 so that the ultrasonic transducer 21 is fixed to the bearing portion 221.

[0054] It is understandable that the first engaging portion 222 and the bearing portion 221 may be integrally formed or separately formed, and this embodiment of the present application does not limit this.

[0055] Exemplarily, the first engaging portion 222 includes an embedded portion 2221 and an elastic portion 2222. The embedded portion 2221 is embedded in the bearing portion 221. The elastic portion 2222 is connected to the embedded portion 2221, the elastic portion 2222 is located outside the bearing portion 221, one end of the elastic portion 2222 away from the embedded portion 2221 protrudes from the second side surface 2214, and one end of the elastic portion 2222 away from the embedded portion 2221 is provided with a buckle position and / or a clamping protrusion for clamping and fixing with the ultrasonic transducer 21.

[0056] Therefore, the first engaging portion 222 may be made of a material with a higher strength than the bearing portion 221 to improve the stability and reliability of the transducer assembly 200. For example, the first engaging portion 222 may be a metal part. Then, in the actual manufacturing process, the first engaging portion 222 may be placed in an injection mold as an insert to inject the bearing portion 221 that wraps the embedded portion 2221.

[0057] The number of the elastic parts 2222 may be at least two, and the at least two elastic parts 2222 are arranged at intervals along the circumference of the ultrasonic transducer 21 , so as to clamp the ultrasonic transducer 21 from the circumferential side.

[0058] In some embodiments, the first electrical connection line 23 is provided on the side of the ultrasonic transducer 21 facing the second side surface 2214, and the second side surface 2214 is provided with a routing notch 2217. The first electrical connection line 23 is routed through the routing notch 2217. Therefore, it can also be understood that the ultrasonic transducer 21 is routed from the side surface away from the sound output area 111 to avoid the first electrical connection line 23 being blocked between the ultrasonic transducer 21 and the sound output area 111 during use.

[0059] Exemplarily, when the first electrical connection line 23 is routed through the routing notch 2217, the first electrical connection line 23 is connected to the peripheral edge of the surface of the ultrasonic transducer 21 facing the first supporting surface 321. Furthermore, the first electrical connection line 23 can avoid the installation axis 322 located at the middle position of the ultrasonic transducer 21.

[0060] As mentioned above, the transducer assembly 200 is provided with a first electrical connection terminal 211. It is possible that the first electrical connection terminal 211 is located at the circumferential edge of the side surface of the ultrasonic transducer 21 facing the first support surface 321.

[0061] In some embodiments, sealant is provided at the connection between the first electrical connection terminal 211 and the first electrical connection wire 23 to improve the stability and reliability of the connection between the first electrical connection terminal 211 and the first electrical connection wire 23.

[0062] In some embodiments, the wire routing notch 2217 is provided on the circumferential surface of the first mounting bracket 22 and penetrates the first side surface 2212 and the second side surface 2214 to facilitate wire routing of the ultrasonic transducer 21.

[0063] Please continue to refer to Figure 7 In some embodiments, the skin care device further includes a medium housing 500. The medium housing 500 is at least partially disposed within the outer housing 100. A medium chamber 51 is formed between the medium housing 500 or between the medium housing 500 and the outer housing 100. The transducer assembly 200 is disposed within the medium chamber 51. The medium chamber 51 is used to store an ultrasonic transmission medium. Thus, the ultrasonic transmission medium can reduce the loss during the ultrasonic waves generated by the transducer assembly 200 entering the skin to be treated, and thereby improve the effect of skin care.

[0064] It can be understood that, on the one hand, the outer housing 100 may form a part of the inner wall of the medium chamber 51, or the outer housing 100 may not form the inner wall of the medium chamber 51. The embodiments of the present application do not limit this. On the other hand, the medium housing 500 and the outer housing 100 may be integrally formed or separately formed. The embodiments of the present application do not limit this either.

[0065] In some embodiments, the medium housing 500 is further provided with a second mounting hole 535. The transmission shaft 31 of the transmission shaft assembly 300 is movably and sealingly mounted within the second mounting hole 535. For example, the transmission shaft assembly 300 includes a transmission shaft 31 and a second seal 34. The transmission shaft 31 is movably and sealingly mounted within the second mounting hole 535 through the second seal 34 so that one end of the transmission shaft 31 extends into the medium chamber 51. Thus, leakage of liquid at the second mounting hole 535 can be avoided.

[0066] Correspondingly, the transducer assembly 200 is mounted on one end of the transmission shaft 31 located within the medium chamber 51. Then, during the long-term movement of the transmission shaft 31 to drive the transducer assembly 200, the second seal 34 is prone to wear, resulting in a gap being formed between the second seal 34 and the circumferential surface of the transmission shaft 31.

[0067] Based on this, in some embodiments, the second seal 34 is sealingly disposed between the inner wall of the second mounting hole 535 and the circumferential surface of the transmission shaft 31. The second seal 34 includes an inner ring seal portion 341 disposed around the transmission shaft 31. The inner ring seal portion 341 has elasticity to closely fit to the circumferential surface of the transmission shaft 31, and / or the second seal 34 further includes an elastic member 342 for driving the inner ring seal portion 341 to closely fit to the circumferential surface of the transmission shaft 31.

[0068] Then, even if the inner ring seal portion 341 is worn after the long-term operation of the transmission shaft assembly 300, the inner ring seal portion 341 can still closely fit to the circumferential surface of the transmission shaft assembly 300 through the elastic member 342 or the elasticity of the inner ring seal portion 341 itself, thereby improving the situation of easy liquid leakage at the transmission shaft 31.

[0069] When the second seal 34 includes the elastic member 342, the elastic member 342 can be sleeved on the outer circumferential side of the inner ring seal portion 341, so that the elastic member 342 can actually act on each position in the circumferential direction of the inner ring seal portion 341, so that each position in the circumferential direction of the inner ring seal portion 341 closely fits to the circumferential surface of the transmission shaft 31.

[0070] Exemplarily, the elastic member 342 can be an annular spring.

[0071] In some embodiments, the second seal 34 further includes an outer ring seal portion 343 and a first bottom wall 344. The outer ring seal portion 343 abuts against the hole wall of the second mounting hole 535. The first bottom wall 344 is annular. The inner end edge of the first bottom wall 344 is connected to the inner ring seal portion 341, and the outer end edge of the first bottom wall 344 is connected to the outer ring seal portion 343. Thus, the gap between the hole wall of the second mounting hole 535 and the circumferential surface of the transmission shaft 31 is sealed by the inner ring seal portion 341, the first bottom wall 344, and the outer ring seal portion 343.

[0072] In some embodiments, the outer ring seal portion 343 is installed in the second mounting hole 535 by interference fit, thereby improving the sealing effect at the second mounting hole 535.

[0073] In some embodiments, the outer ring seal portion 343 includes a rigid support ring and an outer seal portion 541 disposed outside the rigid support ring. The outer seal portion 541 is connected to the first bottom wall 344, so as to improve the strength of the outer ring seal portion 343 and improve the sealing effect at the second mounting hole 535.

[0074] The rigid support ring can be made of a metal material or any other material with a hardness greater than that of the outer seal portion 541. The embodiments of the present application do not make any limitations in this regard.

[0075] In some embodiments, an installation groove is formed between the inner ring seal portion 341, the first bottom wall 344, and the outer ring seal portion 343. The elastic member 342 can be received in the installation groove.

[0076] In some embodiments, the first bottom wall 344 is respectively connected to one end of the inner ring seal portion 341 facing away from the medium chamber 51 and one end of the outer ring seal portion 343 facing away from the medium chamber 51. Thus, the elastic member 342 can be prevented from detaching from the installation groove at one end of the second installation hole 535 facing away from the medium chamber 51, so as to improve the stability and reliability of the installation of the elastic member 342.

[0077] In some embodiments, the second installation hole 535 is a stepped hole, and the inner wall of the second installation hole 535 includes a stepped surface 5351 facing the outside of the medium chamber 51, and the notch of the installation groove faces the stepped surface 5351. The elastic member 342 can be prevented from falling into the medium chamber 51 through the stepped surface 5351.

[0078] Exemplarily, a surface convex portion 5352 protrudes from the surface of the medium housing 500 on the side facing away from the medium chamber 51. The second installation hole 535 is disposed through the surface convex portion 5352, so that the second installation hole 535 forms a stepped hole. For example, the surface convex portion 5352 can be an annular convex surrounding the transmission shaft 31.

[0079] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] The skin care device provided by the embodiments of the present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A skin care device, characterized in that, Comprising: A housing, the housing being provided with a sound-emitting area; A drive shaft assembly, the drive shaft assembly being movably arranged in the housing, the drive shaft assembly comprising a drive shaft and a transmission member, the transmission member comprising a mounting shaft, the transmission member being mounted on the drive shaft, the drive shaft extending along a first axis, the mounting shaft being arranged on a side of the transmission member close to the sound-emitting area, the mounting shaft being inclined to the first axis; A transducer assembly, the transducer assembly being mounted on the mounting shaft, the transducer assembly being inclined to the first axis so that the ultrasonic focus of the transducer assembly is misaligned with the first axis, and the ultrasonic focus of the transducer assembly passing through the sound-emitting area for irradiating the skin to be treated; And A second drive assembly, the second drive assembly being in transmission connection with the drive shaft, the second drive assembly being configured to drive the drive shaft to rotate around the first axis, so as to drive the ultrasonic focus of the transducer assembly to rotate around the first axis.

2. The skin care device according to claim 1, characterized in that, The transducer assembly is rotatably mounted on the mounting shaft around a second axis, so as to enable the transducer assembly to rotate relative to the mounting shaft around the second axis during the process that the drive shaft assembly drives the transducer assembly to move; or The drive shaft has a lead hole extending along the extension direction of the first axis, and the electrical connection wire of the transducer assembly is led out from the lead hole, so as to avoid wire entanglement during the process that the drive shaft assembly drives the transducer assembly to move.

3. The skin care device according to claim 1, characterized in that, The transmission member is provided with a first support surface, the first support surface being inclined to the first axis, and the mounting shaft is arranged on the first support surface, so that the mounting shaft and the transducer assembly are both inclined to the first axis.

4. The skin care device according to claim 3, characterized in that, The transmission member is rotatably connected to the drive shaft around a third axis, so that the inclination angle between the first support surface and the first axis is adjustable, and the extension directions of the first axis and the mounting shaft are both different from the extension direction of the third axis.

5. The skin care device according to claim 3, wherein The transducer assembly further comprises a first mounting bracket and an ultrasonic transducer, the ultrasonic transducer being mounted on the first mounting bracket, the first mounting bracket being provided with a first mounting hole, and the mounting shaft is rotatably mounted in the first mounting hole along a second axis, so that the transducer assembly is rotatably mounted on the mounting shaft, and the second axis is the axis of the mounting shaft, so as to avoid wire entanglement during the process that the drive shaft assembly drives the transducer assembly to rotate.

6. The skin care device according to claim 5, wherein The transducer assembly comprises a bearing, and the bearing is arranged between the mounting shaft and the inner wall of the first mounting hole; or The transducer assembly includes a first fastener, a sliding collar, and a sliding gasket. The first fastener includes a connecting portion and a pressing portion. The sliding collar is disposed between the mounting shaft and the inner wall of the first mounting hole. The sliding gasket is sleeved outside the mounting shaft. One side of the sliding gasket abuts against the first supporting surface, and the other side abuts against the sliding collar. The connecting portion is connected to the mounting shaft so that the pressing portion presses the sliding collar; the pressing portion further forms a sliding ring groove with the first supporting surface, and the hole wall of the first mounting hole is rotatably limited outside the sliding ring groove.

7. The skin care device according to claim 6, wherein, The first mounting bracket has a first side surface opposite to the first supporting surface. A side protrusion is provided on the first side surface. The first mounting hole is provided in the side protrusion and penetrates through the first mounting bracket; and / or The sliding collar and the sliding gasket are metal parts.

8. The skin care device according to claim 5, characterized in that, The first mounting bracket has a first side surface opposite to the first supporting surface and a second side surface opposite to the first side surface. The ultrasonic transducer is mounted on the second side surface; wherein, The first side surface is provided with a first mounting hole penetrating through the first mounting bracket. The mounting shaft is rotatably mounted in the first mounting hole along a second axis inclined to the first axis, so that the ultrasonic transducer is rotatably mounted on the first supporting surface; the transducer assembly further includes a first fastener, and the first fastener is fixedly connected to the mounting shaft from the second side surface to limit the first mounting bracket from moving along the second axis away from the first supporting surface; and / or The second side surface is a bearing surface. An avoidance sink is provided on the bearing surface, and there is a gap between the bottom of the avoidance sink and the transducer; and / or The second side surface is a bearing surface. A receiving sink is provided on the bearing surface, and the ultrasonic transducer is disposed in the receiving sink; and / or The first mounting bracket includes a bearing portion and a first engaging portion. The bearing portion has the first side surface and the second side surface. The first engaging portion protrudes from the second side surface. The first engaging portion is engaged with the ultrasonic transducer so that the ultrasonic transducer is fixed to the bearing portion; and / or A first electrical connection line is provided on one side of the ultrasonic transducer facing the second side surface. A wiring notch is provided on the second side surface, and the first electrical connection line is routed through the wiring notch.

9. The skin care device according to claim 8, wherein When the first electrical connection line is routed through the wiring notch, the first electrical connection line is connected to the circumferential edge of the surface of the ultrasonic transducer facing the first supporting surface on one side, and / or, the wiring notch is provided on the circumferential side surface of the first mounting bracket and penetrates through the first side surface and the second side surface.

10. The skin care device according to claim 8, characterized in that, When the first mounting bracket includes a bearing portion and a first engaging portion, the first engaging portion includes: A buried portion, the buried portion is embedded in the bearing portion; and An elastic part, wherein the elastic part is connected to the embedded part, the elastic part is located outside the bearing part, one end of the elastic part away from the embedded part protrudes from the second side surface, and one end of the elastic part away from the embedded part is provided with a buckle position and / or a clamping protrusion for clamping and fixing with the ultrasonic transducer.

11. The skin care device according to any one of claims 1 to 10, characterized in that, The skin care device further comprises a dielectric housing, wherein the dielectric housing is at least partially disposed in the housing, a dielectric chamber is formed between the dielectric housing or the dielectric housing and the housing, the transducer assembly is disposed in the dielectric chamber, and the dielectric chamber is used to store an ultrasonic wave conductive medium; The medium housing is provided with a second mounting hole communicating with the medium chamber, and the transmission shaft is movably and sealedly mounted in the second mounting hole, so that the transmission shaft is rotatably mounted in the housing around the first axis.

12. The skin care device according to claim 11, wherein, The medium housing is further provided with a second mounting hole, the transmission shaft assembly comprises a transmission shaft and a second sealing member, the transmission shaft is movably and sealingly mounted in the second mounting hole through the second sealing member, so that one end of the transmission shaft extends into the medium chamber; Wherein, the second seal is sealed between the inner wall of the second mounting hole and the peripheral surface of the transmission shaft, the second seal includes an inner ring sealing portion arranged around the transmission shaft, the inner ring sealing portion has elasticity to fit tightly to the peripheral surface of the transmission shaft, and / or the second seal also includes an elastic member, which is used to drive the inner ring sealing portion to fit tightly to the peripheral surface of the transmission shaft.

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