Translation mechanism of ultrasonic transduction piece, acting head of beauty instrument and beauty instrument

Abstract

The utility model provides a translation mechanism of an ultrasonic transduction piece. The translation mechanism comprises a driving piece, a sliding block and an intermittent gear, the intermittent gear is connected with an output rotating shaft of the driving piece, so that the driving piece drives the intermittent gear to rotate around the axial direction of the intermittent gear; the sliding block is provided with a first rack and a second rack which are matched with the intermittent gear; when the intermittent gear is located in an area A of a rotation period, the intermittent gear is matched with the first rack, so that the rotation direction of the intermittent gear is changed into the mode that the sliding block translates in the first direction in the horizontal direction; when the intermittent gear is located in an area B of the rotation period, the intermittent gear is matched with a second rack, so that the rotation direction of the intermittent gear is changed into the mode that the sliding block translates in the second direction in the horizontal direction; the area A and the area B do not coincide; the first direction is opposite to the second direction. The utility model further provides the acting head of the beauty instrument and the beauty instrument with the acting head.

Description

Technical Field

[0001] The utility model relates to a personal care instrument, in particular to a beauty instrument. Background Art

[0002] Based on ultrasonic waves, an ultrasonic beauty knife releases high-intensity focused ultrasonic waves. By utilizing the physical properties of ultrasonic waves in biological tissues, such as directivity, penetrability, and focusability, the ultrasonic energy outside the body penetrates normal tissues and is precisely focused on different depths of the human skin, thereby achieving effects such as lifting and tightening, wrinkle reduction, and shaping. Relying on its non-invasive and non-damaging method to achieve significant treatment effects, the ultrasonic beauty knife has become one of the widely used beauty instruments in the medical aesthetics industry.

[0003] The ultrasonic waves emitted by the ultrasonic beauty knife form a focal point at a certain depth in the human skin tissue, and high thermal energy is generated through this focal point to stimulate the repair and regeneration of collagen. This process requires controlling the ultrasonic waves to make dots at a fixed interval to enable better treatment effects on the skin tissue under uniform stimulation. However, most of the existing ultrasonic beauty knives are operated by the user holding them by hand, making it difficult to control the moving speed of the ultrasonic beauty knife and the uniformity of the interval of ultrasonic dotting. And the automatically moving ultrasonic beauty knife has a large volume due to its complex driving structure, making it inconvenient to use. Summary of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a translation mechanism for an ultrasonic transducer, which occupies a relatively small space.

[0005] To solve the above technical problems, the utility model provides a translation mechanism for an ultrasonic transducer, which is characterized by including: a driving member, a slider, and an intermittent gear;

[0006] The intermittent gear is connected to the output rotating shaft of the driving member to drive the intermittent gear to rotate around its own axis through the driving member; the slider is provided with a first rack and a second rack that cooperate with the intermittent gear;

[0007] When the intermittent gear is in the A area of the rotation cycle, the intermittent gear cooperates with the first rack to convert the rotation of the intermittent gear into the linear movement of the slider in the first direction along the horizontal direction; when the intermittent gear is in the B area of the rotation cycle, the intermittent gear cooperates with the second rack to convert the rotation of the intermittent gear into the linear movement of the slider in the second direction along the horizontal direction; the A area and the B area do not overlap;

[0008] The first direction is opposite to the second direction.

[0009] In a preferred embodiment: the slider has a racetrack-shaped chamber, and the intermittent gear is placed in the chamber.

[0010] In a preferred embodiment: the first rack and the second rack are arranged on two straight sides of the racetrack-shaped chamber, and the projection of the first rack on the straight side where the second rack is located is partially offset from the second rack.

[0011] The present utility model also provides a working head of a beauty instrument, including a housing, an ultrasonic transducer assembly, a lower cover, and the translation mechanism as described above;

[0012] The ultrasonic transducer assembly is fixed to the slider; the housing and the lower cover define an area for accommodating the translation mechanism and the ultrasonic transducer assembly.

[0013] In a preferred embodiment: the inner surface of the housing is divided into an inner cavity and an outer cavity by a first rib, and the slider is arranged in the inner cavity; an opening is provided on the upper surface of the housing corresponding to the area of the inner cavity.

[0014] In a preferred embodiment: the first rib is a racetrack-shaped rib, and a plurality of second ribs are arranged at intervals along the extending direction of the racetrack on its inner surface.

[0015] In a preferred embodiment: the first rib is fixedly connected to a waterproof gland to seal the inner cavity; the waterproof gland is provided with a relief opening for the output rotating shaft to pass through, and the part of the output rotating shaft located in the relief opening is in fit with the inner wall of the relief opening through a sealing ring.

[0016] In a preferred embodiment: an air pressure balance hole and a plugging member for plugging the air pressure balance hole are further provided on the waterproof gland.

[0017] In a preferred embodiment: the ultrasonic transducer assembly includes an ultrasonic transducer and a gland; the gland is locked to the upper surface of the slider, and the ultrasonic transducer is installed in the gland.

[0018] In a preferred embodiment: a first control circuit board is arranged in the outer cavity for outputting an electrical signal to the RF electrode head; a second control circuit board is arranged in the area of the lower cover corresponding to the outer cavity, and the second control circuit board is used for outputting an electrical signal to the driving member.

[0019] The present utility model also provides a beauty instrument, including: a beauty instrument body and a first working head; the first working head is the working head as described above.

[0020] In a preferred embodiment: the connection relationship between the beauty instrument body and the first working head is detachable;

[0021] It further includes a second working head, and the beauty function of the second working head is different from that of the first working head.

[0022] In a preferred embodiment, an operation component for switching the working head is provided on the beauty instrument body. Under the action of an external force, the operation component drives a connection structure provided on the beauty instrument body to move from a locked position to an unlocked position.

[0023] In a preferred embodiment, the operation component for switching the working head includes a button, a reset member, and a reversing member. The reversing member is connected between the button and the connection structure and is used to reverse the movement of the button under the action of an external force into a translational movement of the connection structure between the locked position and the unlocked position. One end of the reset member abuts against the connection structure. When the connection structure moves from the locked structure to the unlocked position, the reset member is compressed to accumulate elastic reset force.

[0024] In a preferred embodiment, a base is further included. The base is provided with a charging bin and a disinfection bin. A button for controlling the start or stop of the disinfection bin is provided on the base.

[0025] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0026] This embodiment provides a beauty instrument. The reciprocating movement of the ultrasonic transducer is realized through an intermittent gear and a rack, thereby increasing the coverage range of ultrasonic waves. And the matching structure of the intermittent gear and the gear is relatively simple. Compared with the traditional multi-stage gear transmission structure, the space occupation is greatly reduced. Description of the Drawings

[0027] Figure 1 Schematic diagram of the beauty instrument in the preferred embodiment of the present utility model;

[0028] Figure 2 Cross-sectional view of the beauty instrument in the preferred embodiment of the present utility model;

[0029] Figure 3 Cross-sectional view of the beauty instrument body in the preferred embodiment of the present utility model;

[0030] Figure 4 Schematic diagram of the base in the preferred embodiment of the present utility model;

[0031] Figure 5 Schematic diagram of the beauty instrument placed on the base in the preferred embodiment of the present utility model;

[0032] Figure 6 Schematic diagram of the first working head in the preferred embodiment of the present utility model;

[0033] Figure 7 Schematic diagram of the second working head in the preferred embodiment of the present utility model;

[0034] Figure 8Explosion diagram of the first working head in the preferred embodiment of the present utility model;

[0035] Figure 9 Front view of the housing of the first working head in the preferred embodiment of the present utility model;

[0036] Figure 10 Internal schematic diagram of the housing of the first working head in the preferred embodiment of the present utility model;

[0037] Figure 11 Cross-sectional view of the first working head in the preferred embodiment of the present utility model;

[0038] Figures 12 - 17 is Figure 11 Cross-sectional view at the A-A position, and schematic diagrams of different stages of the intermittent gear within one rotation period. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a wall-mounted connection, a detachable connection, or an integral connection, can be a mechanical connection, an electrical connection, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] Referring to Figures 1 - 17 , this embodiment provides a beauty instrument, including: a beauty instrument body 1 and a first working head 2.

[0043] The first acting head 2 includes a housing 21, an ultrasonic transducer assembly 22, a lower cover 23, and a translation mechanism 24; the translation mechanism 24 is used to drive the ultrasonic transducer assembly 22 to reciprocate along the horizontal direction to increase the acting range of the ultrasonic transducer assembly 22.

[0044] Therefore, the ultrasonic transducer assembly 22 is fixed to the slider; the housing 21 and the lower cover 23 define an area for accommodating the translation mechanism 24 and the ultrasonic transducer assembly 22.

[0045] In order to drive the ultrasonic transducer assembly 22 to reciprocate along the horizontal direction, the translation mechanism 24 in this embodiment includes: a driving member 241, a slider 242, and an intermittent gear 243; the driving member 241 is a deceleration stepper motor.

[0046] The intermittent gear 243 is connected to the output rotating shaft of the driving member 241 to drive the intermittent gear 243 to rotate around its own axis through the driving member 241; the slider 242 is provided with a first rack 2421 and a second rack 2422 that cooperate with the intermittent gear 243;

[0047] When the intermittent gear 243 is in the upper half cycle of the rotation period, the intermittent gear 243 cooperates with the first rack 2421 to convert the rotation of the intermittent gear 243 into the linear movement of the slider 242 along the horizontal direction towards the first direction; when the intermittent gear 243 is in the lower half cycle of the rotation period, the intermittent gear 243 cooperates with the second rack 2422 to convert the rotation of the intermittent gear 243 into the linear movement of the slider 242 along the horizontal direction towards the second direction; the first direction is opposite to the second direction. In this embodiment, the example is that the intermittent gear 243 cooperates with the first rack 2421 in the upper half cycle and the second rack 2422 in the lower half cycle. It is also possible to select other intervals A and B within a cycle to achieve the above cooperation, as long as intervals A and B do not overlap with each other.

[0048] The movement of the transducer assembly is achieved by the rotational cooperation of the first rack 2421 or the second rack 2422 provided on the slider 242 with the intermittent gear 243, driving the transducer assembly to move left and right; as Figure 12 shown, when the intermittent gear 243 is in the position as Figure 12 shown, the driving member 241 continues to rotate in the clockwise direction. At this time, the rightmost tooth of the intermittent gear 243 just cooperates with the rightmost tooth profile of the first rack 2421 to drive the slider 242 to move from the left end to the right; as Figure 13 is a schematic diagram of the slider 242 moving from the left end to the middle position; as Figure 14 , when the gear moves to Figure 14When in the position shown, the slider 242 is exactly at the rightmost position, the intermittent gear 243 disengages from the first rack 2421, and the driving member 241 continues to rotate clockwise to prepare to engage with the second gear; as Figure 15 , when the gear rotates to Figure 15 the position shown, the leftmost tooth of the intermittent gear 243 just engages with the leftmost tooth of the second rack 2422, driving the slider 242 to move leftward. As Figure 17 , when the intermittent gear 243 rotates to the position shown, the rightmost tooth of the intermittent gear 243 disengages from the rightmost tooth of the second rack 2422, entering the next cycle, and cycling in turn.

[0049] Specifically, in this embodiment, the slider 242 has a racetrack-shaped chamber, and the intermittent gear 243 is placed in the chamber. The first rack 2421 and the second rack 2422 are arranged on two straight sides of the racetrack-shaped chamber, and the projection of the first rack 2421 on the straight side where the second rack 2422 is located is partially offset from the second rack 2422. In this way, during the rotation of the idler gear, it can engage with the first rack 2421 and the second rack 2422 successively. By setting the offset length of the first rack 2421 and the second rack 2422, it can be avoided that the intermittent gear 243 is jammed due to simultaneously engaging with the first rack 2421 and the second rack 2422.

[0050] In this embodiment, the inner surface of the housing 21 is divided into an inner cavity and an outer cavity by the first rib 211, and the slider 242 is arranged in the inner cavity; an opening 212 is provided on the upper surface of the housing 21 corresponding to the area of the inner cavity. In this way, the focused ultrasonic waves output by the ultrasonic transducer assembly 22 can be emitted through the opening 212. And for waterproofing, a waterproof film 213 is pasted at the opening 212.

[0051] To correspond to the shape of the slider 242, in this embodiment, the first rib 211 is a racetrack-shaped rib, and a plurality of second ribs 214 are arranged at intervals along the extending direction of the racetrack on its inner surface. The height of the second rib 214 is less than that of the first rib 211, so that the upper end surface of the second rib 214 forms a limiting surface for supporting the slider 242.

[0052] And since water needs to be filled in the inner cavity as a medium to transmit ultrasonic waves, in order to avoid water leakage, the first rib 211 is fixedly connected to the waterproof gland 215 to seal the inner cavity; the waterproof gland 215 is provided with a relief opening 2151 for the output rotating shaft to pass through, and the part of the output rotating shaft located in the relief opening 2151 is attached to the inner wall of the relief opening 2151 through a sealing ring. In this way, even though the relief opening 2151 is provided on the waterproof gland 215, reliable sealing of the inner cavity can still be achieved.

[0053] Moreover, in order to balance the air pressure inside the inner cavity, an air pressure balance hole 2152 is further provided on the waterproof gland 215, and a plugging member 2153 for plugging the air pressure balance hole 2152. In this embodiment, the plugging member 2153 is made of silica gel.

[0054] Since the outer shell 21 is provided with not only an inner cavity but also an outer cavity, other devices can be arranged in the outer cavity to endow the working head with other functions. For example, in this embodiment, radio frequency electrode heads are arranged at intervals along the circumferential direction in the outer cavity. In this way, the first working head 2 has two beauty functions of ultrasonic + radio frequency.

[0055] In this embodiment, in order to install the ultrasonic transducer assembly, the ultrasonic transducer sheet assembly 22 includes an ultrasonic transducer sheet 221 and a gland 222; the gland 222 is locked to the upper surface of the slider 242, and the ultrasonic transducer sheet 221 is installed in the gland 222.

[0056] Moreover, in order to control the deceleration stepping motor and the radio frequency electrode heads, a first control circuit board 217 is arranged in the outer cavity for outputting an electrical signal to the radio frequency electrode heads. A second control circuit board 217 is arranged in the area of the lower cover 23 corresponding to the outer cavity, and the second control circuit board 217 is used for outputting an electrical signal to the driving member 241.

[0057] Moreover, in this embodiment, Hall sensors 218 are respectively arranged on both sides of the first control circuit board 216 along the length direction inside the inner cavity, and magnets 2423 are also respectively arranged on both sides of the slider 242 along the length direction. In this way, the current position of the ultrasonic transducer sheet 221 can be detected through the cooperation of the magnet 2423 and the Hall sensor 218.

[0058] In this embodiment, in order to further increase the functions of the beauty instrument, a detachable connection relationship can be set between the beauty instrument body 1 and the first working head 2. In this way, the user can easily detach the first working head 2 from the beauty instrument body 1 and then replace it with other second working heads 4 to achieve different beauty functions. In this embodiment, the beauty functions that the second working head 4 can achieve are phototherapy + fractional radio frequency.

[0059] To facilitate the replacement of the working head, a working head switching operation component is provided on the beauty instrument body 1. Under the action of an external force, the operation component drives the connection structure 14 provided on the beauty instrument body 1 to move from the locked position to the unlocked position. Specifically, the working head switching operation component includes a button 11, a reset member 12, and a reversing member; the reversing member is connected between the button 11 and the connection structure 14 and is used to reverse the movement of the button 11 under the action of an external force into a translational movement of the connection structure 14 between the locked position and the unlocked position; one end of the reset member 12 abuts against the connection structure 14, and when the connection structure 14 moves from the locked structure to the unlocked position, the reset member 12 is compressed to accumulate elastic reset force.

[0060] In this embodiment, the reversing member is a first inclined surface 13 connected to the button 11 and a second inclined surface 15 provided on the connection structure 14; when the button 11 is pressed, relative movement occurs between the first inclined surface 13 and the second inclined surface 15, and the generated acting force can drive the connection structure 14 to move. The connection structure 14 in this embodiment is a buckle. When the connection structure 14 is in the locked position, the buckle cooperates with the card slot of the working head to lock. When the connection structure 14 is in the unlocked position, the buckle is separated from the card slot of the working head, so that the working head can be removed.

[0061] Finally, this embodiment further includes a base 3; the base 3 is provided with a charging bin 31 and a disinfection bin 32; a button for controlling the start or stop of the disinfection bin 32 is provided on the base 3. In addition to charging the beauty instrument body 1 with the base 3, the user can also disinfect each working head through the disinfection bin 32.

[0062] The above is only a preferred specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, using this concept to make non-substantive modifications to the present invention, shall fall within the scope of infringement of the protection of the present invention.

Claims

1. The translation mechanism of the ultrasonic transducer is characterized by include: Driving parts, sliders, intermittent gears; The intermittent gear is connected to the output shaft of the driving member so as to drive the intermittent gear to rotate around its own axial direction through the driving member; The slider is provided with a first rack and a second rack matched with the intermittent gear; When the intermittent gear is located in the A region of the rotation cycle, the intermittent gear cooperates with the first rack to change the rotation of the intermittent gear so that the slider moves horizontally in the first direction; when the intermittent gear is located in the B region of the rotation cycle, the intermittent gear cooperates with the second rack to change the rotation of the intermittent gear so that the slider moves horizontally in the second direction; the A region and the B region do not overlap; The first direction is opposite to the second direction.

2. The translation mechanism of the ultrasonic transducer according to claim 1, characterized in that: The slider has a racetrack-shaped cavity, and the intermittent gear is placed in the cavity.

3. The translation mechanism of the ultrasonic transducer according to claim 2, characterized in that: The first rack and the second rack are arranged on two straight sides of the racetrack-shaped chamber, and the projection of the first rack on the straight side where the second rack is located is partially offset from the second rack.

4. The action head of the beauty instrument is characterized by It comprises a housing, an ultrasonic transducer assembly, a lower cover and a translation mechanism as described in any one of claims 1 to 3; The ultrasonic transducer assembly is fixed on the slider; the shell and the lower cover define an area for accommodating the translation mechanism and the ultrasonic transducer assembly.

5. The action head of the beauty instrument according to claim 4, characterized in that: The inner surface of the shell is divided into an inner cavity and an outer cavity by a first rib, and the slider is arranged in the inner cavity; and an opening is arranged in the area of ​​the upper surface of the shell corresponding to the inner cavity.

6. The action head of the beauty instrument according to claim 5, characterized in that: The first rib is a runway-shaped rib, and a plurality of second ribs are arranged at intervals on the inner surface of the rib along the extension direction of the runway.

7. The action head of the beauty instrument according to claim 5, characterized in that: The first rib is fixedly connected to the waterproof pressure cover to close the inner cavity; the waterproof pressure cover is provided with a clearance opening for the output shaft to pass through, and the part of the output shaft located in the clearance opening is fitted with the inner wall of the clearance opening through a sealing ring.

8. The action head of the beauty instrument according to claim 7, characterized in that: The waterproof gland is also provided with an air pressure balance hole and a sealing member for sealing the air pressure balance hole.

9. The action head of the beauty instrument according to claim 4, characterized in that: The ultrasonic transducer assembly comprises an ultrasonic transducer and a pressure cover; the pressure cover is locked on the upper surface of the slider, and the ultrasonic transducer is installed in the pressure cover.

10. The action head of the beauty instrument according to claim 5, characterized in that: A first control circuit board is arranged in the outer cavity for outputting electrical signals to the RF electrode head; a second control circuit board is arranged in the area of ​​the lower cover corresponding to the outer cavity, and the second control circuit board is used to output electrical signals to the driving member.

11. Beauty equipment, characterized in that include: A beauty instrument body and a first action head; the first action head is the action head described in any one of claims 4-10.

12. The beauty instrument according to claim 11, characterized in that: The beauty instrument body and the first action head are in a detachable connection relationship; It also includes a second action head, wherein the beauty function of the second action head is different from that of the first action head.

13. The beauty instrument according to claim 12, characterized in that: The beauty instrument body is provided with an action head switching operation component, and the operation component drives the connection structure provided on the beauty instrument body to move from a locking position to an unlocking position under the action of an external force.

14. The beauty instrument according to claim 13, characterized in that: The action head switching operation assembly includes a button, a reset member and a reversing member; the reversing member is connected between the button and the connecting structure, and is used to reverse the movement of the button under the action of an external force into a translational movement of the connecting structure between a locked position and an unlocked position; One end of the reset member abuts against the connection structure, and when the connection structure moves from the locking structure to the unlocking position, the reset member is compressed to accumulate elastic reset force.

15. The beauty instrument according to claim 11, characterized in that: It also includes a base; the base is provided with a charging compartment and a disinfection compartment; the base is provided with a button for controlling the start or close of the disinfection compartment.

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