An electrically controlled distance-adjustable microneedle beauty instrument

Abstract

This invention discloses an electrically controlled microneedling beauty device. It includes a handheld unit, a reciprocating transmission mechanism, a microneedle module, an adjustment device, and a main control circuit board. The microneedle module contacts the power terminals of the handheld unit via an inductor substrate, enabling identification and security control. The reciprocating transmission mechanism utilizes a rotating swashplate with an annular guide groove and a double-roller clamping structure on a moving component to convert rotation into stable reciprocating motion. The adjustment device uses a telescopic rod to actuate the reciprocating transmission mechanism, combined with a second elastic reset component, to achieve bidirectional precise electrically controlled fine-tuning of the puncture depth. This invention solves the problems of unstable transmission, inaccurate adjustment, and lack of identification mechanism, and has the advantages of high precision, low vibration, and safety and reliability.

Description

Technical Field

[0001] This invention relates to the field of microneedling beauty device technology, specifically to an electrically controlled microneedling beauty device with adjustable distance. Background Technology

[0002] Microneedling is a cosmetic device that uses a microneedle array for high-speed reciprocating punctures to promote skin regeneration and repair. Its therapeutic effects and safety highly depend on the stability of the microneedle movement, the precise controllability of the puncture depth, and the specialization and safety of the operating needles.

[0003] However, in existing technologies, the transmission mechanism of most devices uses mechanical spring reset or eccentric wheel drive, which is prone to vibration and noise during high-speed operation, resulting in unstable microneedle puncture trajectory, affecting treatment uniformity and increasing the risk of skin damage. Moreover, the adjustment of the working position (puncture depth) generally relies on manual mechanical adjustment (such as rotating threaded rings). This method has low adjustment accuracy and cannot achieve precise, stable, and convenient intelligent control.

[0004] Furthermore, existing solutions for connecting the handle to the replaceable operating head mostly rely on simple physical snap-fit ​​or magnetic connections, lacking an electrical identification mechanism. This allows any operating head with matching physical specifications, including non-original or inferior products, to connect and operate, posing significant safety hazards and hindering the intelligent development of equipment that automatically adapts its operating parameters to specific operating heads. Summary of the Invention

[0005] The purpose of this invention is to provide an electrically controlled microneedle beauty device, which aims to solve the problems of unstable transmission mechanism, inaccurate puncture depth adjustment, and lack of electrical connection mechanism of operating head in the existing microneedle beauty device.

[0006] To achieve the above objectives, the present invention provides an electrically controlled microneedle beauty device, comprising: a handheld part, which has a sleeve support inside, one end of the sleeve support having a needle connection part extending to the end of the handheld part, the needle connection part having a needle control circuit board inside, and the needle control circuit board having a power terminal. A reciprocating transmission mechanism is slidably disposed inside the sleeve bracket. The reciprocating transmission mechanism includes a reciprocating drive motor, a mounting sleeve, a moving part, and a first elastic reset part. One end of the mounting sleeve is sleeved on the output shaft end of the reciprocating drive motor, and the output shaft end of the reciprocating drive motor is provided with an inclined rotating swashplate. The moving part is disposed inside the mounting sleeve, one end of the moving part is slidably connected to the rotating swashplate, and the other end extends to the other end of the mounting sleeve and is provided with a connecting shaft. The moving part inside the mounting sleeve is converted into linear reciprocating motion by the rotational motion of the rotating swashplate. The first elastic reset part is disposed on the moving part and is used to apply a reset force to the rotating swashplate. A microneedle module is detachably connected to the needle connection part. The microneedle module includes a needle body shell, a microneedle, and an inductor substrate. A needle shaft is slidably inserted inside the needle body shell. The microneedle is connected to one end of the needle shaft, and the other end of the needle shaft is used to dock with the connecting part. The inductor substrate is disposed inside the needle body shell and is used to contact the power terminal after the microneedle module is connected. An adjustment device is provided at the other end of the sleeve support, which is used to drive the reciprocating transmission mechanism as a whole to extend and retract along the axial direction of the sleeve support; A main control circuit board is disposed inside the handheld part. The main control circuit board is electrically connected to the needle control circuit board and is used to release a control signal to drive the reciprocating drive motor and / or the adjusting device after receiving an electrical signal connected to the inductor substrate.

[0007] Furthermore, the inner wall of the mounting sleeve is provided with an axial groove, the moving part is provided with a sliding connector that slides into the groove, and the sliding connector is provided with a rolling element that slides in connection with the rotating swashplate.

[0008] Furthermore, the rolling element includes two rollers axially and vertically connected to one side of the sliding connector, with a clamping gap formed between the two rollers, and the edge of the rotating swashplate extending into the clamping gap and engaging with the two rollers in a gap fit.

[0009] Furthermore, the upper end face of the rotating swashplate is provided with an annular guide groove, and at least one of the two rollers is slidably connected in the annular guide groove and slides back and forth along its trajectory.

[0010] Furthermore, the connecting shaft is detachably connected to one end of the moving part.

[0011] Furthermore, the connecting shaft is provided with an irregularly shaped insertion hole, and one end of the needle shaft is provided with an irregularly shaped connecting block adapted to mate with the irregularly shaped insertion hole.

[0012] Furthermore, the needle connector has a mating hole at its center, the needle control circuit board is located inside the mating hole, and the inner sidewall of the mating hole has a screw-in protrusion; one end of the needle body shell is a plug-in end, which is inserted into the mating hole, and its outer sidewall has a screw-in groove that is screwed into the screw-in protrusion.

[0013] Furthermore, the inner wall of the sleeve bracket is provided with a connecting groove in the axial direction; the mounting sleeve and the outer periphery of the reciprocating drive motor are fitted with a connecting sleeve, and the end of the connecting sleeve near the adjusting device is provided with a flange to limit the axial displacement of the reciprocating drive motor; the connecting sleeve and the mounting sleeve are fixedly connected by a connecting rod, and one end of the connecting rod is inserted into the connecting groove.

[0014] Furthermore, the adjusting device includes a telescopic motor and a guide seat; the telescopic motor is mounted on the other end of the sleeve bracket via a connecting end seat, and its output shaft end is provided with a telescopic rod located inside the sleeve bracket, the telescopic rod being threadedly connected to the output shaft end; the guide seat is connected to the connecting end seat and located inside the sleeve bracket, one end of the telescopic rod passing through the guide seat and abutting against one end of the reciprocating drive motor to drive the reciprocating transmission mechanism to move towards the needle connection part; a guide rod is axially slidably mounted on the guide seat, one end of the guide rod being connected to one end of the reciprocating drive motor.

[0015] Furthermore, the mounting sleeve is provided with a boss portion, and a second elastic reset member is fitted on the mounting sleeve. One end of the second elastic reset member abuts against the boss portion, and the other end abuts against the inner wall stepped surface of the sleeve bracket, so as to apply a reset preload force toward the adjusting device to the reciprocating transmission mechanism.

[0016] The electrically controlled microneedling beauty device provided by this invention has the following significant advantages compared to existing technologies: 1. By setting a circumferential annular guide groove on the rotating swashplate, and cooperating with the double roller clamping structure on the moving part, the double rollers and the groove surface of the annular groove form a bidirectional forced constraint, effectively eliminating derailment and misalignment during high-speed reciprocating motion, and significantly reducing mechanism vibration and noise. Combined with the sliding groove limiter inside the mounting sleeve and the double guide rod design on the sleeve support, it ensures that no circumferential offset occurs during power transmission, making the microneedle puncture trajectory more vertical and stable, and reducing ineffective traction damage to the skin.

[0017] 2. By integrating the reciprocating drive motor and the rotating swashplate into the reciprocating transmission mechanism, and using the threaded rod driven by the telescopic motor to push the overall displacement of the mechanism, the adjustment action is no longer affected by the main transmission clearance. Relying on the pushing of the telescopic rod and the reverse pre-tightening of the second elastic reset component, micro-clearance transmission during the adjustment process is achieved. Users can precisely drive the stepper telescopic motor through the main control circuit board to achieve digital, high-precision fine-tuning of the puncture depth, solving the problems of low adjustment accuracy and easy loosening of mechanical threaded rings.

[0018] 3. By setting an inductor substrate in the micro-needle module and cooperating with the power terminal of the handheld part, an identity verification mechanism is established. The main control circuit board only releases the power command after recognizing a compliant electrical signal, fundamentally eliminating safety accidents caused by the connection of non-original or inferior needles. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an electrically controlled adjustable microneedle beauty device according to the present invention; Figure 2 This is a schematic diagram of the structure of a microneedle head module and a handheld part separated in an electrically controlled adjustable microneedle beauty device of the present invention; Figure 3 This is a top view schematic diagram of the electrically controlled adjustable distance microneedle beauty device of the present invention; Figure 4 for Figure 3 Cross-sectional view along the AA direction; Figure 5 for Figure 3 Cross-sectional view along the BB direction; Figure 6 This is a schematic diagram of the external connection structure between the reciprocating transmission mechanism and the adjustment device in an electrically controlled microneedle beauty device according to the present invention. Figure 7 This is a schematic diagram of the hidden mounting sleeve of the reciprocating transmission mechanism in an electrically controlled adjustable microneedle beauty device according to the present invention.

[0020] Explanation of reference numerals in the attached figures Detailed Implementation

[0021] The present invention will be described in detail below with reference to specific embodiments.

[0022] In this invention, when directional terms appear, they are used to facilitate the description of the invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of protection of the invention.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms such as "set in," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] like Figures 1 to 7 As shown, an electrically controlled microneedle beauty device mainly consists of two parts: a handheld part 1 and a detachable microneedle head module 2.

[0025] The handheld part 1 has a sleeve bracket 10 inside. One end of the sleeve bracket 10 has a needle connection part 20 extending to one end of the handheld part 1. The needle connection part 20 has a needle control circuit board 21 inside, specifically located in a mating hole 23 located in the center of the needle connection part 20. The needle circuit board has a power terminal 22 for electrical signal transmission. The handheld part 1 also has a main control circuit board 60 inside, which is electrically connected to the needle control circuit board 21.

[0026] In practical implementation, when the micro-needle module 42 is inserted into the needle connector 20, its internal inductor substrate 43 makes physical contact with the power terminal 22 and activates the identification circuit. The main control circuit board 60 can only activate subsequent reciprocating drive and distance adjustment commands after receiving the feedback signal from the identification circuit, thus realizing safe identification and automatic parameter adaptation for specific needle specifications.

[0027] A reciprocating transmission mechanism is slidably provided inside the sleeve bracket 10. The reciprocating transmission mechanism includes a reciprocating drive motor 30, a mounting sleeve 31, a moving part 32, and a first elastic reset part 33. The mounting sleeve 31 is fixed to the output shaft end of the reciprocating drive motor 30, and the output shaft end is provided with an inclined rotating swashplate 301. The first elastic reset part 33 is a spring.

[0028] In this embodiment, the upper end face of the rotating swashplate 301 is provided with a circumferential annular guide groove 302. The movable member 32 is disposed inside the mounting sleeve 31, and the upper end of the movable member 32 is provided with a sliding connector 322. Two rollers 323 are vertically arranged on the sliding connector 322, and a clamping gap 324 is formed between the two rollers 323.

[0029] In practical implementation, the edge of the groove wall of the rotating swashplate 301 extends into the clamping gap 324, and at least one roller 323 is embedded in the annular guide groove 302. When the reciprocating drive motor 30 drives the rotating swashplate 301 to rotate, the change in the trajectory depth of the annular guide groove 302 forces the roller 323 to make axial displacement through the groove surface, thereby driving the moving member 32 to make precise axial reciprocating motion in the slide groove 311 on the inner sidewall of the mounting sleeve 31. The first elastic reset member 33 continuously applies pressure towards the swashplate to the moving member 32, ensuring that the roller 323 and the groove are in contact at all times during high-speed operation.

[0030] In this embodiment, to achieve stable guidance and anti-rotation of the reciprocating transmission mechanism, a connecting groove 11 is provided axially on the inner wall of the sleeve bracket 10. A connecting sleeve 12 is fitted around the outer periphery of the mounting sleeve 31 and the reciprocating drive motor 30, and a flange 13 is provided at the end of the connecting sleeve 12 near the adjusting device. The connecting sleeve 12 and the mounting sleeve 31 are fixedly connected by a connecting rod 14.

[0031] In practical implementation, the connecting sleeve 12 restricts the axial movement of the reciprocating drive motor 30 through the flange 13, ensuring the stability of the power source. One end of the connecting rod 14 is inserted into the connecting groove 11 of the sleeve bracket 10. Through this mating structure, the entire reciprocating transmission mechanism is constrained to slide only along the axial direction of the sleeve bracket 10, effectively preventing the motor from rotating circumferentially during operation and ensuring the accuracy and reliability of the transmission.

[0032] An adjusting device is provided at the other end of the sleeve support 10. The adjusting device includes a connecting end seat 53, a telescopic motor 50, a guide seat 52, and a guide rod 521. In this embodiment, the connecting end seat 53 is located at the edge of the other end of the sleeve support 10, providing a stable support reference for the adjusting device. The telescopic motor 50 is fixedly mounted on the sleeve support 10 via the connecting end seat 53. The output shaft of the telescopic motor 50 is threadedly connected to a telescopic rod 51, one end of which passes through the guide seat 52 and abuts against the bottom end of the reciprocating drive motor 30.

[0033] In this embodiment, the outer periphery of the mounting sleeve 31 is provided with a boss portion 312 with a boss structure, and a second elastic reset member 313 is sleeved between the boss portion 312 and the inner wall stepped surface of the sleeve bracket 10.

[0034] In practice, the telescopic motor 50 drives the telescopic rod 51 to extend, unidirectionally pushing the entire reciprocating transmission mechanism towards the needle tip. At this time, the second elastic reset member 313 is compressed, generating a continuous upward preload. When the telescopic motor 50 drives the telescopic rod 51 to retract, the second elastic reset member 313 releases its elastic force, pushing the reciprocating transmission mechanism to retract synchronously. This "pull-pull" coordination ensures a smooth and stable adjustment process, achieving precise control of the needle puncture depth at the micrometer level. The second elastic reset member 313 is a spring.

[0035] The microneedle module 2 includes a needle body shell 40 and a needle shaft 41 that slides within it. One end of the needle shaft 41 is connected to the microneedle 42, and the other end is provided with a shaped connecting block 411. An inductor substrate 43 is disposed inside the needle body shell 40. The end of the moving member 32 that is in contact with the shaped connecting block 411 is provided with a detachable coupling part 321, and the coupling part 321 is provided with a shaped insertion hole 3211 that is adapted to the shaped connecting block 411. The inner wall of the needle connecting part 20 is provided with a screw-in protrusion 24, and the insertion end of the needle body shell 40 is provided with a screw-in groove 44. In a specific implementation, the user inserts the microneedle module 2 into the handheld part 1 and rotates it. The locking of the screw-in groove 44 and the screw-in protrusion 24 prevents loosening during movement. The shaped connecting block 411 enters the shaped insertion hole 3211, which effectively restricts the rotation of the needle shaft 41 while realizing reciprocating power coupling.

[0036] When this device is in operation, its specific power transmission and linkage process is as follows: Identification and safe startup phase: When the micro-needle 42 module 2 is connected, the power terminal 22 is triggered through the inductor substrate 43. After the main control circuit board 60 identifies the legitimate signal, it wakes up the standby state.

[0037] Precise depth adjustment stage: The telescopic motor 50 is activated, and the telescopic rod 51 supports the reciprocating drive motor 30 to move. With the pre-tightening effect of the second elastic reset member 313, the reciprocating transmission mechanism is positioned at the preset insertion depth reference position.

[0038] Bidirectional forced transmission stage: The reciprocating drive motor 30 rotates at high frequency, and the rotating swashplate 301 uses the annular guide groove 302 to forcibly pull the double rollers 323 to jump up and down, driving the micro needle 42 to perform high-speed puncture. The forced constraint of the annular groove greatly reduces vibration and noise.

[0039] Reset and Protection Phase: After treatment, the telescopic motor 50 retracts, and under the action of the second elastic reset component 313, the entire mechanism is reset to the origin, ensuring that the microneedle 42 retracts within the working end face to prevent accidental injury.

[0040] Where there is no conflict, the above embodiments and features can be combined with each other.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A microneedling beauty device with electrically controlled adjustable distance, characterized in that, include: The handheld part has a sleeve bracket inside, one end of which has a needle connection part extending to the end of the handheld part. The needle connection part has a needle control circuit board inside, and the needle control circuit board has a power terminal. A reciprocating transmission mechanism is slidably disposed inside the sleeve bracket. The reciprocating transmission mechanism includes a reciprocating drive motor, a mounting sleeve, a moving part, and a first elastic reset part. One end of the mounting sleeve is sleeved on the output shaft end of the reciprocating drive motor, and the output shaft end of the reciprocating drive motor is provided with an inclined rotating swashplate. The moving part is disposed inside the mounting sleeve, one end of the moving part is slidably connected to the rotating swashplate, and the other end extends to the other end of the mounting sleeve and is provided with a connecting shaft. The moving part inside the mounting sleeve is converted into linear reciprocating motion by the rotational motion of the rotating swashplate. The first elastic reset part is disposed on the moving part and is used to apply a reset force to the rotating swashplate. A microneedle module is detachably connected to the needle connection part. The microneedle module includes a needle body shell, a microneedle, and an inductor substrate. A needle shaft is slidably inserted inside the needle body shell. The microneedle is connected to one end of the needle shaft, and the other end of the needle shaft is used to dock with the connecting part. The inductor substrate is disposed inside the needle body shell and is used to contact the power terminal after the microneedle module is connected. An adjustment device is provided at the other end of the sleeve support, which is used to drive the reciprocating transmission mechanism as a whole to extend and retract along the axial direction of the sleeve support; A main control circuit board is disposed inside the handheld part. The main control circuit board is electrically connected to the needle control circuit board and is used to release a control signal to drive the reciprocating drive motor and / or the adjusting device after receiving an electrical signal connected to the inductor substrate.

2. The electrically controlled adjustable distance microneedling beauty device according to claim 1, characterized in that, The inner wall of the mounting sleeve is provided with an axial groove, and the moving part is provided with a sliding connector that slides into the groove. The sliding connector is provided with a rolling element that slides and connects to the rotating swashplate.

3. The electrically controlled adjustable distance microneedling beauty device according to claim 2, characterized in that, The rolling element includes two rollers axially and vertically connected to one side of the sliding connector, with a clamping gap formed between the two rollers. The edge of the rotating swashplate extends into the clamping gap and engages with the two rollers in a clearance fit.

4. The electrically controlled adjustable microneedle beauty device according to claim 3, characterized in that, The upper end face of the rotating swashplate is provided with an annular guide groove, and at least one of the two rollers is slidably connected in the annular guide groove and slides back and forth along its trajectory.

5. The electrically controlled adjustable distance microneedling beauty device according to claim 1, characterized in that, The connecting shaft is detachably connected to one end of the moving part.

6. The electrically controlled adjustable distance microneedling beauty device according to claim 1, characterized in that, The connecting shaft is provided with an irregularly shaped insertion hole, and one end of the needle shaft is provided with an irregularly shaped connecting block that is adapted to mate with the irregularly shaped insertion hole.

7. The electrically controlled adjustable microneedle beauty device according to claim 1, characterized in that, The needle connector has a docking hole at its center, the needle control circuit board is located inside the docking hole, and a screw-in protrusion is provided on the inner side wall of the docking hole; one end of the needle body shell is a plug-in end, which is inserted into the docking hole, and a screw-in groove is provided on its outer side wall to screw in with the screw-in protrusion.

8. The electrically controlled adjustable distance microneedling beauty device according to claim 1, characterized in that, The inner wall of the sleeve bracket is provided with an axial connecting groove; the mounting sleeve and the outer periphery of the reciprocating drive motor are fitted with a connecting sleeve, and the end of the connecting sleeve near the adjusting device is provided with a flange that restricts the axial displacement of the reciprocating drive motor; the connecting sleeve and the mounting sleeve are fixedly connected by a connecting rod, and one end of the connecting rod is inserted into the connecting groove.

9. The electrically controlled adjustable microneedle beauty device according to claim 1, characterized in that, The adjusting device includes a telescopic motor and a guide seat; the telescopic motor is mounted on the other end of the sleeve bracket via a connecting end seat, and its output shaft end is provided with a telescopic rod located inside the sleeve bracket, the telescopic rod being threadedly connected to the output shaft end; the guide seat is connected to the connecting end seat and located inside the sleeve bracket, one end of the telescopic rod passing through the guide seat and abutting against one end of the reciprocating drive motor to drive the reciprocating transmission mechanism to move towards the needle connection part; a guide rod is axially slidably mounted on the guide seat, one end of the guide rod being connected to one end of the reciprocating drive motor.

10. A microneedling beauty device with electrically controlled adjustable distance according to claim 1, characterized in that, The mounting sleeve has a boss portion, and a second elastic reset member is fitted on the mounting sleeve. One end of the second elastic reset member abuts against the boss portion, and the other end abuts against the inner wall stepped surface of the sleeve bracket, so as to apply a reset preload force toward the adjusting device to the reciprocating transmission mechanism.

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