A cosmetic instrument

Abstract

The present application relates to the field of cosmetic instrument technology, and provides a cosmetic instrument, which comprises a host, a driving mechanism and a stop structure, the driving mechanism is arranged in the host at one end and is movably arranged through the mounting port of the host at the other end; a microneedle kit, which comprises a mounting seat and a microneedle sheet; a liquid storage bottle, which is detachably connected with the mounting seat and is in communication with the mounting seat at one end and is provided with an elastic capsule at the other end; the other end of the driving mechanism is detachably connected with the liquid storage bottle and / or the mounting seat, which is used for driving the mounting seat and the liquid storage bottle to move axially and reciprocally synchronously, so as to drive the microneedle sheet to move reciprocally and pierce the skin outside the mounting port, when the liquid storage bottle is retracted into the host, the elastic capsule is in contact with the stop structure and is extruded, so that the liquid in the liquid storage bottle is discharged to the end face of the mounting seat. The present application realizes the automatic liquid discharge of the liquid storage bottle by driving the mounting seat and the liquid storage bottle to move reciprocally, when the liquid storage bottle is retracted into the host, the elastic capsule is extruded by the stop structure in the host, the structure is simple, the occupied space is small, and the cost is low.

Description

A beauty instrument Technical Field

[0001] This invention relates to the field of beauty instrument technology, and more particularly to a beauty instrument. Background Technology

[0002] In the field of cosmetic medicine, microneedling mesotherapy (also known as microneedling mesotherapy) holds a very important position. Specifically, microneedling mesotherapy uses an array of microneedles to precisely puncture the stratum corneum of the skin, creating minimally invasive channels. This innovative approach allows skincare active ingredients or nutrients to bypass the epidermal barrier and be directly delivered to the subcutaneous tissue, thereby achieving highly effective cosmetic results.

[0003] Currently, most beauty devices on the market achieve skin puncture by driving microneedle kits. A microneedle kit typically includes a mounting base and microneedles mounted on the base. The microneedles, as the core puncture component, have an array of microneedles on their surface that can pierce the stratum corneum of the skin, creating a micro-invasive channel that facilitates the penetration and delivery of active skincare ingredients. The mounting base, as the connecting carrier, stably mounts the microneedles to the driving mechanism of the beauty device. The driving mechanism then uses vibration or reciprocating motion to move the microneedles and complete the skin puncture procedure.

[0004] However, existing beauty devices have a significant technical flaw: during the entire process of microneedling through the skin, it is impossible to simultaneously supply beauty serum for concurrent skincare. To address this issue, existing technologies attempt to improve the device by adding a reservoir, using negative pressure suction or atomization to drive the serum from the reservoir towards the end where the microneedles are located. However, this improvement increases the overall complexity of the beauty device, raising both the design and manufacturing difficulty and significantly increasing production costs. Summary of the Invention

[0005] To solve the above-mentioned technical problems, or at least partially solve them, the present invention aims to provide a beauty instrument that drives the microneedle kit and the liquid storage bottle to move back and forth synchronously through its driving mechanism. A stop structure is added inside the beauty instrument. When the liquid storage bottle retracts into the machine housing during the reciprocating movement, the elastic bladder of the liquid storage bottle is squeezed by the stop structure, which automatically realizes the liquid dispensing from the liquid storage bottle. No additional driving source is required. The structure is simple, occupies little space, and has low cost.

[0006] This invention provides a beauty instrument, comprising:

[0007] The main unit includes a housing, a drive mechanism, and a stop structure. One axial end of the housing is provided with a mounting port. One end of the drive mechanism is disposed inside the housing, and the other end is movably passed through the mounting port. The stop structure is disposed on the inner wall of the housing near the mounting port.

[0008] The microneedle kit includes a mounting base and a microneedle plate, wherein the microneedle plate is disposed on one axial end face of the mounting base, and the mounting base is provided with a connecting channel passing through both axial end faces.

[0009] A liquid storage bottle, one end of which is detachably connected to the mounting base and communicates with the connection channel, and the other end is provided with an elastic bladder;

[0010] The other end of the drive mechanism is detachably connected to the liquid storage bottle and / or the mounting base, and is used to drive the mounting base and the liquid storage bottle to move synchronously axially back and forth, so as to drive the microneedle to move back and forth outside the mounting port to puncture the skin.

[0011] The elastic bladder is located on the side of the stop structure near the mounting port. When the drive mechanism drives the liquid storage bottle to retract into the housing, the elastic bladder contacts the stop structure and is squeezed, causing the liquid in the liquid storage bottle to flow out through the connecting channel to one end face of the mounting base.

[0012] In some embodiments, it also includes:

[0013] A movable sleeve, one end of which is axially movably disposed on the inner wall of the housing near the mounting port, and the other end extending to the outside of the mounting port;

[0014] A protective shell is fitted around the outer periphery of the mounting base and is detachably connected to the other end of the movable sleeve. It is used to move axially synchronously with the movable sleeve to adjust the axial distance of the microneedle protruding outside the protective shell or retracting into the protective shell.

[0015] In some embodiments, one axial end of the mounting base is located outside the mounting port, and the mounting base is provided with a first assembly part; the other end of the drive mechanism includes a telescopic structure, and the telescopic structure located outside the mounting port is provided with a second assembly part, the second assembly part being detachably connected to the first assembly part.

[0016] In some embodiments, the telescopic structure includes a connecting sleeve, the liquid storage bottle is inserted into the connecting sleeve, and the second assembly part is disposed at the inlet end of the connecting sleeve.

[0017] In some embodiments, the first assembly part is a groove recessed on the outer peripheral wall of the mounting base, and the second assembly part is a buckle protruding on the inner peripheral wall of the inlet end of the connecting sleeve, wherein the buckle engages with the groove.

[0018] In some embodiments, the stop structure includes a bent plate, one end of which is fixed to the inner peripheral wall of the housing, and the other end is bent and protrudes into the housing.

[0019] The other end of the connecting sleeve has an axially extending through-hole on its outer peripheral wall. The other end of the bending plate extends into the connecting sleeve through the through-hole and is positioned opposite to the elastic bladder.

[0020] In some embodiments, the other axial end of the mounting base is provided with a mounting base connecting portion, and the open end of the liquid storage bottle is provided with a liquid storage bottle connecting portion, which is detachably connected to the mounting base connecting portion.

[0021] The first assembly part is disposed between the end face of the mounting base where the micro needle plate is located and the connecting part of the mounting base.

[0022] In some embodiments, the mounting base includes an axially connected first mounting section and a second mounting section, wherein the outer diameter of the first mounting section is larger than the outer diameter of the second mounting section;

[0023] The microneedle sheet is disposed on the end face of the first mounting section away from the second mounting section, the mounting base connecting part is disposed on the outer peripheral wall of the second mounting section, and the first assembly part is disposed at the connection between the second mounting section and the first mounting section.

[0024] In some embodiments, the protective shell includes a first pipe segment and a second pipe segment connected axially. The outer diameter of the first pipe segment is larger than the outer diameter of the second pipe segment. The first pipe segment is sleeved on the outer periphery of the end of the mounting base where the microneedle is provided. The second pipe segment is provided with a protective shell connecting part, and the protective shell connecting part is detachably connected to the other end of the movable sleeve.

[0025] In some embodiments, the movable sleeve is fitted over a portion of the connecting sleeve at the other end of the drive mechanism and is located on the outer side of the stop structure near the mounting port.

[0026] The movable sleeve includes a first movable sleeve section and a second movable sleeve section connected axially. The outer diameter of the first movable sleeve section is larger than the outer diameter of the second movable sleeve section. The first movable sleeve section is located outside the mounting port and is detachably connected to the protective shell. The second movable sleeve section passes through the mounting port and is rotatably connected to the inner wall of the housing via threads.

[0027] The outer peripheral wall of the connecting sleeve is provided with a limiting part for abutting against the second movable sleeve segment.

[0028] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art:

[0029] (1) This invention uses a drive mechanism to drive the microneedle kit and the liquid reservoir to move synchronously back and forth. This allows the microneedles to puncture the stratum corneum of the skin while the stop structure automatically releases the liquid by squeezing the elastic bladder when the liquid reservoir retracts. No additional drive source is required, which greatly simplifies the structure of the beauty instrument and reduces manufacturing and operating costs. Moreover, this design ensures that the liquid release and microneedle puncture are closely coordinated, enabling more precise delivery of the beauty liquid to the areas of the skin that need care, thus improving the beauty effect. At the same time, the connection between the components is reasonable, and the detachable connection facilitates the cleaning, maintenance, and component replacement of the instrument, extending its service life.

[0030] (2) The protective shell of the present invention is fitted over the microneedle kit, which can effectively protect and hide the microneedle kit when it is not in use, preventing damage to the microneedle pieces or accidental injury to the user. At least one axial end of the microneedle kit is located outside the beauty instrument and can be detached from the beauty instrument. The protective shell is detachably installed on the movable sleeve outside the beauty instrument, or it can be directly removed from the beauty instrument. There is no need to disassemble and replace the drive mechanism and movable sleeve that cooperate with the protective shell and microneedle kit, which greatly reduces the replacement cost.

[0031] (3) By setting a bending plate as a stop structure, one end of which is fixed to the inner peripheral wall of the housing, and the other end is bent and protruded into the housing, and an axially extending through-hole is opened on the outer peripheral wall of the other end of the connecting sleeve, so that the other end of the bending plate can be inserted into the connecting sleeve through the through-hole and set opposite to the elastic bladder. This design cleverly solves the problem of squeezing when the liquid storage bottle retracts in conjunction with the stop structure. During the axial reciprocating movement of the liquid storage bottle, since the through-hole has an axial extension length, the stop structure will not be stuck in the through-hole of the connecting sleeve, ensuring that the connecting sleeve can move smoothly axially, thereby driving the liquid storage bottle to move back and forth, so that the bending plate squeezes the elastic bladder to realize the liquid dispensing from the liquid storage bottle, which improves the performance and reliability of the beauty instrument, and the structure is simple, easy to process and assemble, and reduces production costs. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 is a cross-sectional schematic diagram of a beauty instrument according to the present invention;

[0035] Figure 2 is an enlarged schematic diagram of the structure at point A in Figure 1 of this invention;

[0036] Figure 3 is a cross-sectional schematic diagram of a microneedle assembly of the present invention;

[0037] Figure 4 is a schematic diagram of a microneedle kit according to the present invention;

[0038] Figure 5 is a cross-sectional schematic diagram of Figure 4 of the present invention;

[0039] Figure 6 is a schematic diagram of a liquid storage bottle according to the present invention;

[0040] Figure 7 is a schematic diagram of a protective shell according to the present invention;

[0041] Figure 8 is a cross-sectional schematic diagram of a movable sleeve according to the present invention;

[0042] Figure 9 is a cross-sectional schematic diagram of another microneedle component of the present invention.

[0043] in,

[0044] 1. Mounting base; 11. First mounting section; 111. Mounting groove; 112. Glue overflow cavity; 12. Second mounting section; 121. Mounting base connecting part; 122. First assembly part; 13. Connecting channel; 131. First connecting channel section; 132. Second connecting channel section;

[0045] 2. Microneedle sheet; 21. Microneedle; 22. Substrate; 23. Liquid inlet channel;

[0046] 3. Liquid storage bottle; 31. Liquid storage bottle connection part; 32. Elastic bladder;

[0047] 4. Protective shell; 41. First pipe section; 411. Through port; 42. Second pipe section; 421. Protective shell connection part;

[0048] 5. Main unit; 51. Housing; 511. Receiving cavity; 512. Mounting port; 513. Internal thread; 514. Fixed base; 52. Drive mechanism; 521. Motor; 522. Telescopic structure; 5221. Connecting sleeve; 52211. Second assembly part; 52212. Through hole; 52213. Limiting part; 5222. Connecting rod; 53. Movable sleeve; 531. First movable sleeve section; 532. Second movable sleeve section; 5321. External thread; 54. Stop structure; 541. Bending plate. Detailed Implementation

[0049] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0050] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0051] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0052] As shown in Figures 1 to 9, an embodiment of the present invention provides a beauty instrument, which includes a main unit 5 and a microneedle assembly. The microneedle assembly includes a microneedle kit and a reservoir 3. The main unit 5 is the main body of the beauty instrument, providing a mounting base and support for other components. The microneedle kit and reservoir 3 are detachably mounted on the main unit 5, enabling skin puncture and the application of beauty fluid to the skin in conjunction with the main unit 5.

[0053] The main unit 5 includes a housing 51, a drive mechanism 52, and a stop structure 54. The housing 51 has an internal cavity 511, and one axial end of the housing 51 has a mounting port 512 communicating with the cavity 511. One end of the drive mechanism 52 is located inside the housing 51, and the other end of the drive mechanism 52 movably passes through the mounting port 512. The stop structure 54 is located on the inner wall of the housing 51 near the mounting port 512.

[0054] The microneedle kit is primarily used to create a micro-invasive channel by piercing the stratum corneum of the skin, allowing solutions containing skin care benefits to enter the skin through this channel. The microneedle kit includes a mounting base 1 and microneedle pads 2. The microneedle pads 2 are positioned on one axial end face of the mounting base 1 for piercing the skin. The mounting base 1 has connecting channels 13 extending through both axial end faces, allowing liquid to exit to one end face of the mounting base 1.

[0055] The liquid storage bottle 3 is used to store liquid or to hold liquid during use. The liquid storage bottle 3 can be an empty bottle or a pre-filled bottle containing liquids such as beauty serum. One end of the liquid storage bottle 3 is sealed to the mounting base 1 and detachably connected to the connecting channel 13. The other end is equipped with an elastic bladder 32, which allows liquid to be dispensed from the liquid storage bottle 3 by squeezing the elastic bladder 32. The connected microneedle kit and the liquid storage bottle 3 can reciprocate axially within the mounting port 512.

[0056] The other end of the drive mechanism 52 is detachably connected to the liquid storage bottle 3 and / or the mounting base 1, and is used to drive the mounting base 1 and the liquid storage bottle 3 to move synchronously axially back and forth, so as to drive the microneedle 2 to move back and forth outside the mounting port 512 to puncture the skin. Either the liquid storage bottle 3 or the mounting base 1 can be fixed to the drive mechanism 52, so that both can move synchronously driven by the drive mechanism 52. The elastic bladder 32 is located on the side of the stop structure 54 near the mounting port 512. When the drive mechanism 52 drives the liquid storage bottle 3 to retract into the housing 51, the elastic bladder 32 contacts the stop structure 54 and is squeezed, so that the liquid in the liquid storage bottle 3 flows out through the connecting channel 13 to one end face of the mounting base 1.

[0057] In this embodiment, the microneedle kit and the liquid reservoir 3 are moved synchronously back and forth by the drive mechanism 52. This allows the microneedle 2 to puncture the stratum corneum of the skin while the stop structure 54 automatically dispenses liquid by squeezing the elastic capsule 32 when the liquid reservoir 3 retracts. No additional drive source is required, greatly simplifying the structure of the beauty instrument and reducing manufacturing and operating costs. Furthermore, this design ensures close coordination between the dispensing of the beauty solution and the puncture action of the microneedle 2, enabling more precise delivery of the beauty solution to the areas of skin requiring care and improving the beauty effect. Simultaneously, the reasonable connection method between the components and the detachable connection facilitate cleaning, maintenance, and component replacement of the instrument, extending its service life.

[0058] In the above embodiments, the microneedle sheet 2 is a thin sheet structure and can be circular, polygonal (e.g., square), etc. The mounting base 1 can be a single shape such as cylindrical, polygonal prism, frustum, or sphere, or a combination of one or more of the above shapes, as long as it can provide a supporting surface for mounting the microneedle sheet 2 and be installed with the drive mechanism 52 of the beauty instrument. The mounting base 1 and the liquid storage bottle 3 are sealed and detachably connected, including but not limited to threaded connection, interference fit, and snap-fit ​​connection. The detachable connection methods between the mounting base 1 and / or the liquid storage bottle 3 and the drive mechanism 52 of the beauty instrument include but are not limited to snap-fit, plug-in, threaded connection, and magnetic connection. The liquid storage bottle 3 can be tubular, frustum, etc. Preferably, the liquid storage bottle 3 includes a main body and an elastic bladder 32. The main body has openings at both axial ends, and the elastic bladder 32 is disposed at one of the openings of the main body and covers it. The main body of the liquid storage bottle 3 can be made of rigid material or flexible material. When the beauty instrument is in operation, one axial end of the mounting base 1 must be located outside the housing 51 to facilitate the microneedle 2 puncturing the skin. The other end of the drive mechanism 52 can be located in or outside the mounting port 512 to facilitate the installation and removal of the microneedle kit and the reservoir bottle 3. The drive mechanism 52 can be manually driven, electromagnetically driven, or electrically driven, etc.

[0059] The working process of the beauty instrument includes: the drive mechanism 52 starts working. Because one end is set inside the housing 51 and the other end is movable and passes through the mounting port 512 and is detachably connected to the liquid storage bottle 3 and / or the mounting base 1, it can drive the mounting base 1 and the liquid storage bottle 3 to move synchronously axially back and forth. The microneedle 2 is set on the axial end face of the mounting base 1 and moves back and forth outside the mounting port 512 as the mounting base 1 moves, thereby puncturing the stratum corneum of the skin. One end of the liquid storage bottle 3 is detachably connected to the mounting base 1 and communicates with the connecting channel 13, and the other end is provided with an elastic bladder 32, which is located on the side of the stop structure 54 near the mounting port 512. When the drive mechanism 52 drives the liquid reservoir 3 to retract into the housing 51, the elastic bladder 32 contacts the stop structure 54. Since the stop structure 54 is fixed to the inner wall of the housing 51, the elastic bladder 32 will be squeezed and deformed. Under pressure, the liquid in the liquid reservoir 3 will flow out through the connecting channel 13 to one end face of the mounting base 1. The beauty solution can be applied to the skin through the micro-invasive channel formed by the microneedle 2. When the drive mechanism 52 drives the liquid reservoir 3 to move outward, the elastic bladder 32 returns to its original shape, waiting for the next squeezing to release liquid.

[0060] In production practice, the volume of the connecting channel 13 and / or the liquid storage bottle 3 within the mounting base 1 can be adjusted according to the required liquid storage volume. Specifically, the inner diameter of the connecting channel 13 and / or the liquid storage bottle 3 can be increased or decreased, and the extension length of the connecting channel 13 and / or the liquid storage bottle 3 can be increased or decreased.

[0061] As shown in Figures 1 to 2 and Figures 7 to 9, the microneedle assembly also includes a protective shell 4. The beauty instrument also includes a movable sleeve 53.

[0062] One end of the movable sleeve 53 is axially movably disposed on the inner wall of the housing 51 near the mounting port 512, and the other end extends outside the mounting port 512. The protective shell 4 is sleeved on the outer periphery of the mounting base 1 and is detachably connected to the other end of the movable sleeve 53. It is used to move axially synchronously with the movable sleeve 53 to adjust the axial distance of the microneedle 2 protruding outside the protective shell 4 or retracting into the protective shell 4. By adjusting the position of the protective shell 4, the microneedle 2 can be switched between a working state (microneedle 2 protruding outside the protective shell 4) and a protective state (microneedle 2 located inside the protective shell 4). The length of the microneedle 2 protruding from the protective shell 4 can also be adjusted to adjust the depth of skin puncture.

[0063] The protective shell 4 is fitted over the microneedling kit, effectively protecting and concealing the kit when not in use, preventing damage to the microneedle pads 2 or accidental injury to the user. At least one axial end of the microneedling kit is located outside the beauty device and can be detached from the outside. The protective shell 4 is detachably mounted on the movable sleeve 53 outside the beauty device, or can be directly removed from the outside of the beauty device. This eliminates the need to disassemble and replace the drive mechanism 52 and movable sleeve 53 that mate with the protective shell 4 and microneedling kit, significantly reducing replacement costs.

[0064] The protective shell 4 and the movable sleeve 53 can be detachably connected in ways including but not limited to snap-fit, plug-in, threaded connection, and magnetic connection. The protective shell 4 is a cover-shaped structure (its cover surface has a through-hole 411 for the microneedle kit to pass through) or a cylindrical structure. Of course, the protective shell 4 can also be other shapes with through-channels; this is only an example. Anti-slip textures are provided on the outer wall of the protective shell 4 to facilitate gripping during operation and removal from the beauty instrument. The movable sleeve 53 is a cylindrical structure.

[0065] As shown in Figures 1 to 3, one axial end of the mounting base 1 is located outside the mounting opening 512, and the mounting base 1 is provided with a first assembly part 122. The other end of the drive mechanism 52 includes a telescopic structure 522. The telescopic structure 522 located outside the mounting opening 512 is provided with a second assembly part 52211, and the second assembly part 52211 is detachably connected to the first assembly part 122.

[0066] In this embodiment, a first assembly part 122 is provided between one end face of the mounting base 1 and the mounting base connecting part 121. A second assembly part 52211 is provided on the structure of the telescopic structure 522 located outside the mounting port 512. The second assembly part 52211 is detachably connected to the first assembly part 122, thereby realizing the detachable connection between the mounting base 1 and the telescopic structure 522 of the drive mechanism 52. This design allows the liquid storage bottle 3 to move synchronously with the mounting base 1 under the drive mechanism 52, ensuring a stable supply of solution and the coordination of overall movements during the beauty operation. At the same time, it does not affect the disassembly and connection of the mounting base 1 and the liquid storage bottle 3, facilitating the replacement of the liquid storage bottle 3 and the maintenance of the drive mechanism 52, thus improving the ease of use and maintainability of the beauty instrument.

[0067] The telescopic structure 522 includes a connecting sleeve 5221, and a second assembly part 52211 is disposed at the inlet end of the connecting sleeve 5221. After the liquid storage bottle 3 is inserted into the connecting sleeve 5221, the second assembly part 52211 is connected to the first assembly part 122.

[0068] The drive mechanism 52 also includes a motor 521, the drive end of which is connected to the telescopic structure 522.

[0069] The telescopic structure 522 also includes a connecting rod 5222 axially connected to the connecting sleeve 5221. One axial end face of the connecting sleeve 5221 has a recessed cavity into which the liquid storage bottle 3 is inserted. The second assembly portion 52211 of the connecting sleeve 5221 is detachably connected to the first assembly portion 122. One end of the connecting rod 5222 is connected to the other axial end of the connecting sleeve 5221, and the other end of the connecting rod 5222 is connected to the drive end of the motor 521. The liquid storage bottle 3 is inserted into the connecting sleeve 5221 via its inlet end, and the second assembly portion 52211 on the inlet end of the connecting sleeve 5221 is connected to the first assembly portion 122 on the mounting base 1.

[0070] The first assembly part 122 is a groove recessed on the outer peripheral wall of the mounting base 1 (see Figures 4 and 5), and the second assembly part 52211 is a buckle protruding on the inner peripheral wall of the inlet end of the connecting sleeve 5221. The buckle engages with the groove. Preferably, the groove is an annular groove. After the liquid storage bottle 3 is inserted into the connecting sleeve 5221, the buckle on the connecting sleeve 5221 engages with the groove of the mounting base 1, achieving a fixed connection with the mounting base 1.

[0071] The peripheral wall of the connecting sleeve 5221 is provided with multiple notches at intervals. The multiple notches extend from the inlet end of the connecting sleeve 5221 to the other end of the axial direction of the connecting sleeve 5221, so as to facilitate the deformation of the inlet end of the connecting sleeve 5221, thereby allowing the second assembly part 52211 to be engaged with the first assembly part 122.

[0072] The stop structure 54 includes a bent plate 541, one end of which is fixed to the inner peripheral wall of the housing 51, and the other end is bent and protrudes into the housing 51. The outer peripheral wall of the other end of the connecting sleeve 5221 has an axially extending through-hole 52212. The other end of the bent plate 541 extends into the connecting sleeve 5221 through the through-hole 52212 and is positioned opposite to the elastic bladder 32.

[0073] This embodiment uses a bending plate 541 as a stop structure 54, with one end fixed to the inner peripheral wall of the housing 51 and the other end bent and protruding into the housing 51. Simultaneously, an axially extending through-hole 52212 is formed on the outer peripheral wall of the other end of the connecting sleeve 5221, allowing the other end of the bending plate 541 to extend into the connecting sleeve 5221 through the through-hole 52212 and be positioned opposite the elastic bladder 32. This design cleverly solves the problem of squeezing the liquid storage bottle 3 when it retracts in conjunction with the stop structure 54. During the axial reciprocating movement of the liquid storage bottle 3, because the through-hole 52212 has an axial extension length, the stop structure 54 will not be stuck in the through-hole 52212 of the connecting sleeve 5221, ensuring that the connecting sleeve 5221 can move smoothly axially back and forth, thereby driving the liquid storage bottle 3 to move back and forth. This allows the bending plate 541 to squeeze the elastic bladder 32, realizing the dispensing of liquid from the liquid storage bottle 3. This improves the performance and reliability of the beauty instrument, and the structure is simple, easy to process and assemble, and reduces production costs.

[0074] Preferably, the bending plate 541 includes a first plate and a second plate. A fixing base 514 is provided on the inner peripheral wall of the housing 51. The first plate is fixed to the fixing base 514 by screws, and the first plate is parallel to the axial direction of the housing 51. The second plate bends and protrudes into the housing 51 and is perpendicularly connected to the first plate.

[0075] As shown in Figure 6, one end of the liquid storage bottle 3 is open. When needed, solution is added, and then it is sealed and installed with the mounting base 1. Alternatively, one end of the liquid storage bottle 3 has a cap that can be closed or opened. The liquid storage bottle 3 also stores solution, and after opening the cap, it is directly sealed and installed with the mounting base 1. The other axial end of the mounting base 1 is provided with a mounting base connecting part 121, and the open end of the liquid storage bottle 3 is provided with a liquid storage bottle connecting part 31, which is detachably connected to the mounting base connecting part 121.

[0076] In this embodiment, a mounting base connecting part 121 is provided at the other end of the mounting base 1 along the axial direction, and a liquid storage bottle connecting part 31 is provided at the open end of the liquid storage bottle 3, so that the two can be detachably connected, which facilitates the replacement of the liquid storage bottle 3 and the addition of solution. The liquid storage bottle 3 can be open or have a closable or openable cap to meet the needs of different usage scenarios. It can add solution when needed or store solution for use at any time. This design improves the flexibility and convenience of using the beauty instrument.

[0077] The mounting base connecting part 121 can be disposed on the outer or inner wall of the other axial end of the mounting base 1, including threaded structures, snap-fit ​​structures, interference fit structures, and other quick-release sealing structures. The liquid storage bottle connecting part 31 is disposed on the outer wall of the open end of the liquid storage bottle 3, or it can be disposed on the inner peripheral wall of the liquid storage bottle 3 near its open end. Preferably, the liquid storage bottle connecting part 31 is a threaded structure disposed on the inner peripheral wall of the open end of the liquid storage bottle 3. The mounting base connecting part 121 is a threaded structure disposed on the outer peripheral wall of the other end of the mounting base 1, and is threadedly sealed to the liquid storage bottle connecting part 31.

[0078] In the above embodiments, the open end of the liquid storage bottle 3 is detachably connected to the other end of the mounting base 1. This can be either the open end of the liquid storage bottle 3 is fitted onto the outer periphery of the other end of the mounting base 1, or the open end of the liquid storage bottle 3 is inserted into the interior of the other end of the mounting base 1. Preferably, the other axial end of the mounting base 1 can be inserted into the open end of the liquid storage bottle 3. The main body of the liquid storage bottle 3 is cylindrical, and the elastic bladder 32 has a hemispherical protrusion structure.

[0079] The first assembly part 122 is located between one end face of the mounting base 1 and the mounting base connecting part 121.

[0080] In this embodiment, by setting a first assembly part 122 between one end face of the mounting base 1 and the mounting base connection part 121, a detachable connection with the telescopic structure 522 of the drive mechanism 52 is achieved, so that the liquid storage bottle 3 can move synchronously with the mounting base 1 under the drive mechanism 52. At the same time, it does not affect the detachment and connection between the mounting base 1 and the liquid storage bottle 3, which facilitates the replacement of the liquid storage bottle 3 and the maintenance of the drive mechanism 52, and improves the ease of use and maintainability of the beauty instrument.

[0081] As shown in Figures 4 and 5, the mounting base 1 includes a first mounting section 11 and a second mounting section 12 connected axially. The outer diameter of the first mounting section 11 is larger than the outer diameter of the second mounting section 12. The microneedle 2 is disposed on the end face of the first mounting section 11 away from the second mounting section 12. The mounting base connecting part 121 is disposed on the outer peripheral wall of the second mounting section 12. The first assembly part 122 is disposed at the connection between the second mounting section 12 and the first mounting section 11.

[0082] In this embodiment, the mounting base 1 is designed as a first mounting section 11 and a second mounting section 12 with different outer diameters and axially connected. The first mounting section 11 has a larger outer diameter, which provides a larger bearing area for the microneedle sheet 2. The second mounting section 12 has a smaller outer diameter, which facilitates connection with the liquid storage bottle 3 and the telescopic structure 522, saving space and making the entire device structure more compact.

[0083] In the above embodiments, the first mounting section 11 and the second mounting section 12 are cylindrical, frustum-shaped, or polygonal cylindrical in shape. Preferably, both the first mounting section 11 and the second mounting section 12 are cylindrical and coaxially arranged. The first mounting section 11 and the second mounting section 12 are integrally connected and cannot be detached. The first assembly part 122 is disposed on the outer peripheral wall of the second mounting section 12 near the first mounting section 11.

[0084] The mounting base connection part 121 has a threaded structure, and the liquid storage bottle connection part 31 has a matching threaded structure.

[0085] The mounting base 1 has a mounting groove 111 on one axial end face. The microneedle sheet 2 includes a substrate 22 and a plurality of microneedles 21. The substrate 22 is disposed on the bottom wall of the mounting groove 111, and the plurality of microneedles 21 are spaced apart on the substrate 22, and the plurality of microneedles 21 protrude outward from the mounting groove 111.

[0086] In this embodiment, a mounting groove 111 is provided on one end face of the mounting base 1 along the axial direction. The substrate 22 of the microneedle sheet 2 is stably placed on the bottom wall of the mounting groove 111, ensuring the connection between the microneedle sheet 2 and the mounting base 1 is stable. Multiple microneedles 21 are spaced apart on the substrate 22 and protrude outward from the mounting groove 111, ensuring the effective operating length of the microneedles 21. This allows the microneedles 21 to puncture the stratum corneum of the skin more effectively, ensuring that the beauty solution can smoothly penetrate into the skin.

[0087] Microneedles 21 can be solid or hollow.

[0088] Preferably, the microneedles 21 are made of a biodegradable material that can be gradually hydrolyzed into non-toxic small molecules in the human body and metabolized and absorbed.

[0089] This embodiment designs the microneedle 21 as a biodegradable material, so even if the microneedle 21 breaks accidentally during skin puncture, the remaining microneedle fragments in the skin tissue can be gradually decomposed and metabolized by the human body. This design eliminates the safety hazard of accidental breakage of the microneedle 21 and leaving it in the skin, eliminating the need for manual removal of the remaining fragments and significantly improving the safety of the microneedle kit. At the same time, it effectively avoids the potential risks of infection, foreign body reaction, etc., caused by the long-term retention of broken non-degradable microneedles 21 in the human body.

[0090] The microneedle 2 is bonded to the bottom wall of the mounting groove 111, and the microneedle 2 and the inner peripheral wall of the mounting groove 111 are spaced apart to form an overflow cavity 112.

[0091] This embodiment provides an overflow cavity 112 between the microneedle sheet 2 and the inner peripheral wall of the mounting groove 111, which can effectively accommodate excess adhesive generated during the bonding process of the microneedle sheet 2. This fundamentally solves the hygiene problems caused by adhesive overflow sticking to the microneedle sheet 2, and avoids affecting the normal use of the microneedle sheet 2 and the penetration of the beauty solution.

[0092] One embodiment (see Figure 5) is that one end of the connecting channel 13 penetrates the bottom wall of the mounting groove 111, and the other end of the connecting channel 13 penetrates the other end face of the mounting base 1 and connects to the liquid storage bottle 3. The microneedle sheet 2 is provided with a through liquid inlet channel 23, which is connected to one end of the connecting channel 13. The liquid inlet channel 23 extends to the side surface of the microneedle 21 of the microneedle sheet 2, and is used to precisely guide the beauty fluid delivered by the connecting channel 13 to the surface of the microneedle sheet 2, thereby acting on the punctured skin or inside the skin. The number of liquid inlet channels 23 can be one or more, and they can be straight channels or curved channels.

[0093] In this embodiment, one end of the connecting channel 13 passes through the bottom wall of the mounting groove 111, and the other end passes through the other end face of the mounting base 1. The microneedle 2 is provided with a through liquid inlet channel 23 and is sealed and connected to one end of the connecting channel 13. This structural design creates a dedicated transmission path for the beauty fluid from the external container to the surface of the microneedle 2, allowing the beauty fluid to flow directly and smoothly to the surface of the microneedle 2. This ensures that the beauty fluid is accurately applied to the punctured skin or inside the skin along with the microneedle 21, improving the utilization efficiency and delivery effect of the beauty fluid. The overall solution has a compact structure and precise flow guidance, further ensuring the performance and reliability of the microneedle kit, and combining practicality and economy.

[0094] Another implementation is that one end of the connecting channel 13 penetrates the inner peripheral wall of the mounting groove 111, or penetrates the area on the outer periphery of the mounting base 1 located at one end face of the mounting groove 111 (not shown in the figure), and the other end penetrates the other end face of the mounting base 1 and connects to the liquid storage bottle 3.

[0095] When one end of the connecting channel 13 passes through the inner peripheral wall of the mounting groove 111, preferably, one end of the connecting channel 13 passes through the upper part of the inner peripheral wall of the mounting groove 111 and communicates with the overflow cavity 112. The beauty liquid can enter the upper surface of the microneedle 2 through the overflow cavity 112, so that the beauty liquid can enter the skin with the puncture action of the microneedle 2.

[0096] When one end of the connecting channel 13 passes through the area where the end face of one end of the mounting base 1 is located on the outer periphery of the mounting groove 111, liquid can be discharged directly from the area where the end face of one end of the mounting base 1 is located on the outer periphery of the mounting groove 111.

[0097] The number of liquid inlet channels 23 can be one or more, and they can be straight channels or curved channels.

[0098] In the above embodiments, the mounting base 1 can be a rigid material or an elastic material with a certain degree of flexibility (such as rubber).

[0099] Mounting base 1 is made of elastic material, which has lower procurement and processing costs compared to rigid material, effectively reducing the production cost of the entire microneedle kit; and the elastic material has good deformation capability, so when connected to drive mechanism 52 or liquid storage bottle 3, no additional sealing component is required, and sealing can be achieved simply through its own elastic deformation, ensuring sealing performance and connection stability.

[0100] The connecting channel 13 extends into the first mounting section 11 and the second mounting section 12 (see Figures 3 and 9). In one example, the connecting channel 13 includes a first connecting channel segment 131 and a second connecting channel segment 132, with the first connecting channel segment 131 located within the first mounting section 11 and the second connecting channel segment 132 located within the second mounting section 12 (see Figure 9). For example, when an increased liquid storage capacity is required, the outer diameters of the first mounting section 11 and the protective shell 4 can be increased, as can the inner diameter of the first connecting channel segment 131.

[0101] As shown in Figures 1, 7 and 8, the protective shell 4 has a through-hole 411 at one end near the axial direction of the microneedle 2, and the microneedle 2 can move relative to it along the axial direction to pass through the through-hole 411.

[0102] The protective shell 4 has a through channel extending axially along the mounting base 1, and the through opening 411 communicates with the through channel. The axial length of the protective shell 4 can be greater than or equal to the axial length of the microneedle kit, or it can be less than the axial length of the microneedle kit, as long as it only needs to cover the microneedle sheet 2. The mounting base 1 can be covered by the protective shell 4 cooperating with the external structure of the movable sleeve 53. The protective shell 4 is shaped like a frustum or a combination of a frustum and a cylinder.

[0103] The protective shell 4 is open at one axial end away from the microneedle 2, and the open end of the protective shell 4 is provided with a protective shell connecting part 421. The protective shell connecting part 421 is used for detachable connection with the external structure of the movable sleeve 53 that is axially movable in the beauty instrument.

[0104] This embodiment provides an open end at the axial end of the protective shell 4 away from the microneedle 2, and a protective shell connecting part 421 at the open end, so that the protective shell 4 can be detachably connected to the movable sleeve 53 that is axially movable in the beauty instrument. This effectively solves the connection problem of axial movement of the protective shell 4, ensuring that the protective shell 4 can move smoothly along the axial direction under the drive of the movable sleeve 53, thereby accurately adjusting the axial distance of the microneedle 2 protruding outside the protective shell 4 or retracting into the protective shell 4, without affecting the protective and concealing function of the protective shell 4 for the microneedle kit.

[0105] The protective shell connecting part 421 can be provided on the open end face of the protective shell 4, on the outer peripheral wall of the protective shell 4, or on the inner peripheral wall of the protective shell 4. The protective shell connecting part 421 can be a snap-fit ​​structure, a plug-in structure, a magnetic structure, a threaded connection structure, etc., and can be detachably connected with the movable sleeve 53.

[0106] The protective shell 4 includes a first tube segment 41 and a second tube segment 42 connected axially. The outer diameter of the first tube segment 41 is larger than the outer diameter of the second tube segment 42, and the connection forms a stepped structure to accommodate the segmented structure of the mounting base 1 and the connection requirements of the movable sleeve 53. The first tube segment 41 is fitted around the outer periphery of the end of the microneedle kit with the microneedle plate 2, and the protective shell connecting part 421 is disposed on the second tube segment 42. The first tube segment 41 and the second tube segment 42 can be cylindrical, frustum-shaped, or polygonal prism-shaped, etc.

[0107] In this embodiment, the protective shell 4 is configured as an axially connected first tube segment 41 and second tube segment 42. The first tube segment 41 has a larger outer diameter, which allows it to be more stably fitted around the outer periphery of the end of the microneedle kit with the microneedle piece 2, thus improving the protection and concealment effect of the microneedle kit. At the same time, the second tube segment 42 carries the protective shell connecting part 421, which is adapted to the detachable connection with the movable sleeve 53 in the beauty instrument. This effectively solves the connection problem of the axially movable protective shell 4, ensuring that the protective shell 4 can move smoothly axially with the movable sleeve 53 and accurately adjust the protrusion or retraction distance of the microneedle piece 2.

[0108] Preferably, the first pipe section 41 and the second pipe section 42 are integrally connected in a non-detachable manner. The protective shell connecting part 421 includes a snap-fit ​​buckle disposed on the outer periphery of the end of the second pipe section 42 away from the first pipe section 41, and a matching snap-fit ​​part is provided on the inner peripheral wall of one end of the movable sleeve 53. The second pipe section 42 is inserted into one end of the movable sleeve 53, and the snap-fit ​​buckle is connected to the snap-fit ​​part.

[0109] In some embodiments, the movable sleeve 53 is sleeved outside a portion of the structure of the connecting sleeve 5221 in the drive mechanism 52, and is located on the side of the stop structure 54 near the mounting port 512.

[0110] The movable sleeve 53 includes a first movable sleeve section 531 and a second movable sleeve section 532 connected axially. The outer diameter of the first movable sleeve section 531 is larger than the outer diameter of the second movable sleeve section 532. The first movable sleeve section 531 is located outside the mounting port 512 and is detachably connected to the protective shell 4. The second movable sleeve section 532 passes through the mounting port 512 and is threadedly rotatably connected to the inner wall of the housing 51.

[0111] The outer peripheral wall of the connecting sleeve 5221 is provided with a limiting part 52213 for abutting against the end face of the second movable sleeve section 532. The limiting part 52213 is an annular rib.

[0112] The inner circumferential wall of the housing 51 near the mounting port 512 is provided with an internal thread 513. The second movable sleeve section 532 of the movable sleeve 53 is provided with an external thread 5321 and is connected to the internal thread 513. By rotating the first movable sleeve section 531, the movable sleeve 53 is driven to move axially back and forth.

[0113] The second movable sleeve section 532 of the movable sleeve 53 has a limiting groove on its outer peripheral wall. The limiting groove extends axially between adjacent threaded rings of the external thread 5321. The housing 51 has an axially extending limiting member. The limiting member is connected between adjacent threaded rings of the internal thread 513 and engages with the limiting groove to restrict its rotation, preventing the movable sleeve 53 from unscrewing out of the housing 51.

[0114] The movable sleeve 53 has multiple position marks spaced around its circumference. The housing 51 of the beauty instrument also has an opening, through which the corresponding position marks on the movable sleeve 53 can be observed to adjust the length of the microneedle 2 protruding or retracting into the protective shell 4.

[0115] The amount of liquid discharged is positively correlated with the maximum deformation of the elastic bladder 32 during the retraction process. The amount of liquid discharged is also related to the axial installation position of the stop structure 54 and the abutment fit between the limiting part 52213 and the movable sleeve 53.

[0116] By adjusting the axial installation position of the bending plate 541 within the housing 51, the axial relative position of the other end of the bending plate 541 within the opening 52212 when it initially squeezes the elastic bladder 32 (i.e., the remaining retraction distance of the liquid storage bottle 3) is changed, thereby altering the maximum deformation of the elastic bladder 32 squeezed by the other end of the bending plate 541, ultimately achieving the adjustment of the liquid output.

[0117] When the bending plate 541 initially compresses the elastic bladder 32, its axial relative position within the through-hole 52212 can be located at one axial end of the through-hole 52212 near the mounting port 512, or at the middle of the two axial ends within the through-hole 52212.

[0118] With the axial installation position of the bending plate 541 remaining unchanged, the axial installation position of the limiting part 52213 on the telescopic structure 522 is adjusted so that the limiting part 52213 abuts against the axial end of the telescopic structure 522. This indirectly limits the maximum outward extension distance of the telescopic structure 522 (which moves synchronously with the liquid storage bottle 3), and uses this maximum extension distance to limit the maximum retraction distance of the liquid storage bottle 3. This changes the maximum deformation of the elastic bladder 32 squeezed by the other end of the bending plate 541, ultimately achieving the adjustment of the liquid output.

[0119] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0120] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A beauty instrument, characterized in that, include: The main unit includes a housing, a drive mechanism, and a stop structure. One axial end of the housing has a mounting port. One end of the drive mechanism is located inside the housing, and the other end movably passes through the mounting port. The stop structure is located on the inner wall of the housing near the mounting port. A microneedle kit includes a mounting base and microneedles. The microneedles are disposed on one axial end face of the mounting base, which has a connecting channel penetrating both axial end faces. A reservoir bottle has one end detachably connected to the mounting base and communicating with the connecting channel, and the other end has an elastic bladder. The other end of the drive mechanism is detachably connected to the reservoir bottle and / or the mounting base, used to drive the mounting base and the reservoir bottle to move synchronously axially back and forth, thereby causing the microneedles to move back and forth outside the mounting port to puncture the skin. The axial end of the mounting base... The first end of the drive mechanism is located outside the mounting port, and the mounting base is provided with a first assembly part; the other end of the drive mechanism includes a telescopic structure, and the telescopic structure located outside the mounting port is provided with a second assembly part, the second assembly part being detachably connected to the first assembly part; the telescopic structure includes a connecting sleeve, and the outer peripheral wall of the connecting sleeve away from the mounting base has an axially extending through-hole; one end of the stop structure is fixed to the inner peripheral wall of the housing, and the other end extends into the connecting sleeve through the through-hole and is disposed opposite to the elastic bladder; the elastic bladder is located on the side of the stop structure near the mounting port, and when the drive mechanism drives the liquid storage bottle to retract into the housing, the elastic bladder contacts the stop structure and is squeezed, causing the liquid in the liquid storage bottle to exit through the connecting channel to one end face of the mounting base.

2. The beauty instrument according to claim 1, characterized in that, Also includes: A movable sleeve, one end of which is axially movably disposed on the inner wall of the housing near the mounting port, and the other end extending to the outside of the mounting port; A protective shell is fitted around the outer periphery of the mounting base and is detachably connected to the other end of the movable sleeve. It is used to move axially synchronously with the movable sleeve to adjust the axial distance of the microneedle protruding outside the protective shell or retracting into the protective shell.

3. The beauty instrument according to claim 1, characterized in that, The liquid storage bottle is inserted into the connecting sleeve, and the second assembly part is disposed at the inlet end of the connecting sleeve.

4. The beauty instrument according to claim 3, characterized in that, The first assembly part is a groove recessed on the outer peripheral wall of the mounting base, and the second assembly part is a buckle protruding on the inner peripheral wall of the inlet end of the connecting sleeve. The buckle engages with the groove.

5. The beauty instrument according to claim 1, characterized in that, The stop structure includes a bending plate, one end of which is fixed to the inner peripheral wall of the housing, and the other end is bent and protrudes into the housing; the other end of the bending plate extends into the connecting sleeve through the through hole and is positioned opposite to the elastic bladder.

6. The beauty instrument according to any one of claims 1-5, characterized in that, The mounting base has a mounting base connecting part at the other axial end, and the liquid storage bottle has a liquid storage bottle connecting part at the open end, which is detachably connected to the mounting base connecting part; the first assembly part is disposed between the end face of the mounting base with the microneedle and the mounting base connecting part.

7. The beauty instrument according to claim 6, characterized in that, The mounting base includes a first mounting section and a second mounting section connected axially, the outer diameter of the first mounting section is larger than the outer diameter of the second mounting section; the microneedle is disposed on the end face of the first mounting section away from the second mounting section, the mounting base connecting part is disposed on the outer peripheral wall of the second mounting section, and the first assembly part is disposed at the connection between the second mounting section and the first mounting section.

8. The beauty instrument according to claim 2, characterized in that, The protective shell includes a first pipe section and a second pipe section connected axially. The outer diameter of the first pipe section is larger than the outer diameter of the second pipe section. The first pipe section is sleeved on the outer periphery of the end of the mounting base where the micro-needle is provided. The second pipe section is provided with a protective shell connecting part. The protective shell connecting part is detachably connected to the other end of the movable sleeve.

9. The beauty instrument according to claim 2, characterized in that, The movable sleeve is fitted onto the outside of a portion of the connecting sleeve at the other end of the drive mechanism and is located on the outer side of the stop structure near the mounting opening. The movable sleeve includes a first movable sleeve segment and a second movable sleeve segment connected axially, with the outer diameter of the first movable sleeve segment being larger than that of the second movable sleeve segment. The first movable sleeve segment is located outside the mounting opening and is detachably connected to the protective shell, while the second movable sleeve segment passes through the mounting opening and is threadedly rotatably connected to the inner wall of the housing. The outer peripheral wall of the connecting sleeve is provided with a limiting portion for abutting against the second movable sleeve segment.

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