An electric nanoneedle instrument

Abstract

This utility model belongs to the field of beauty device technology, and particularly relates to an electric nano-microneedle instrument. An electric nano-microneedle instrument includes: a housing, a battery, a circuit board assembly, and a motor; a rotating disk with an inclined end face is fixedly sleeved on the output shaft of the motor; a fixed sleeve is fixedly embedded in the housing; a movable rod slides through the fixed sleeve; a limit plate is provided on the movable rod; a spring is sleeved on the movable rod, the spring causing one end of the movable rod to abut against the inclined surface of the rotating disk; the movable rod is fixedly connected to a clamping tube; a liquid bottle is detachably clamped in the clamping tube; a plug is fixedly inserted into the opening of the clamping tube; nano-microneedles are provided on the end face of the plug; the motor drives the rotating disk to rotate and drives the movable rod, liquid bottle, and nano-microneedles to reciprocate. This utility model can quickly perform high-frequency punctures into the skin and inject nutrients.

Description

Technical Field

[0001] This utility model belongs to the field of beauty device technology, and in particular relates to an electric nano-microneedle instrument. Background Technology

[0002] Nanoneedles are devices that use ultra-fine needles (about one-thousandth the diameter of a human hair) to physically penetrate the superficial layer of the epidermis (typically 0.1–0.3 mm). This creates tiny channels in the skin, preventing excessive damage to the dermis while allowing nutrients such as hyaluronic acid and collagen to penetrate deeper. Simultaneously, the stimulation triggers the skin's repair mechanisms, promoting collagen regeneration without causing significant pain or damage, resulting in firmer, brighter skin. They also enhance the absorption of skincare products.

[0003] In the prior art, Chinese utility model patent CN212914194U discloses a skin rejuvenation device based on water-light infusion technology, including a housing. An injection head is fixedly mounted at one end of the housing, and a needle is movably mounted at the end of the injection head away from the housing. Several nano-microneedles are uniformly fixedly mounted at the end of the needle away from the injection head. A placement opening is provided at the top of the housing. A first fixing bracket is fixedly mounted inside the housing below the placement opening, and a first groove is provided at the upper end of the first fixing bracket. An injection tube is fixedly mounted at the end of the injection head away from the needle, and the end of the injection tube away from the needle is fixedly mounted on one side of the top of the first fixing bracket. A second fixing bracket is fixedly mounted at the bottom of the housing on the side away from the needle, and an electric rod is fixedly mounted on one side of the second fixing bracket above the first fixing bracket. This utility model has a simple structure and is easy to use, allowing for skin massage after injecting water-light essence into the skin.

[0004] The above-mentioned technical solution has the following technical problems: In this solution, the operator first inserts nano-microneedles into the skin, then activates an electric lever to push the injection head to inject the hydrating essence into the skin, followed by massage. This method is cumbersome and cannot quickly puncture and deliver nutrients to the skin, such as the face. Therefore, there is an urgent need for an electric nano-microneedle device that can quickly and frequently puncture the skin and inject nutrients. Utility Model Content

[0005] To address the technical problems existing in the prior art, this application provides an electric nano-microneedle instrument that can quickly perform high-frequency punctures into the skin and inject nutrients.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electric nanoneedle device includes: a housing, a battery fixedly connected inside the housing, the battery being electrically connected to a circuit board assembly and a motor; a rotating disk with an inclined end face fixedly sleeved on the output shaft of the motor, a fixed sleeve fixedly embedded in the housing along its length, a movable rod slidably passing through the fixed sleeve, a limiting disk fixedly connected to the movable rod, a spring in a compressed state sleeved on the movable rod on the side of the movable rod away from the limiting disk, the spring causing one end of the movable rod to abut against the inclined surface of the rotating disk; the other end of the movable rod fixedly connected to a clamping tube, a liquid bottle detachably clamped in the clamping tube, a plug fixedly inserted at the opening of the clamping tube, and a nanoneedle disposed on the outer end face of the plug; the motor drives the rotating disk to rotate and drives the movable rod, clamping tube, liquid bottle, plug, and nanoneedle to reciprocate along the length of the housing, and the liquid in the liquid bottle can flow out through the nanoneedle.

[0008] Preferably, the rotating disk includes a connecting sleeve sleeved on the motor output shaft and a guide sleeve fixedly connected to one end of the connecting sleeve. The motor output shaft, the connecting sleeve and the guide sleeve are coaxially arranged. The end face of the guide sleeve facing away from the motor is a sloping structure. The distance between the end face of the guide sleeve on this side and the end face on the other side increases and then decreases along the circumference of the guide sleeve.

[0009] Preferably, a guide rod is fixedly connected to the end of the movable rod near the guide sleeve. The guide rod is arranged perpendicular to the movable rod. When the inclined end face of the guide sleeve rotates, it drives the guide rod and causes the movable rod to reciprocate.

[0010] Preferably, a buffer sleeve is fitted onto the guide rod, and the buffer sleeve abuts against the inclined end face of the guide sleeve.

[0011] Preferably, guide blocks are evenly distributed and fixedly connected on the outer circumference of the limiting disk along the length direction of the movable rod.

[0012] Preferably, the clamping tube includes a clamping tube body with an opening on one side and a sliding tube fixedly connected to the other side of the clamping tube body. The sliding tube is slidably inserted into the fixed sleeve and sleeved on the movable rod. The fastening screw is inserted into the clamping tube body and threaded into the movable rod to fix the clamping tube to the movable rod.

[0013] Preferably, the housing has a three-section structure, which includes a rear section tube, a middle section tube, and a front section tube that are detachably connected to each other. A positioning ring is fixedly embedded at the connection between the rear section tube and the middle section tube, and a plug is fixedly embedded at the rear end of the rear section tube. The circuit board assembly is fixedly connected in the rear section tube between the positioning ring and the plug.

[0014] Preferably, a protective tube is provided inside the middle section pipe, and the motor is embedded in the protective tube; the fixing sleeve includes a fixing sleeve body passing through the protective tube and a limiting sleeve coaxially fixedly connected to one end face of the fixing sleeve body, the outer diameter of the limiting sleeve being larger than the outer diameter of the fixing sleeve body; a limiting groove is formed on the inner circumference of the front section pipe, one end face of the limiting sleeve abuts the bottom of the limiting groove and its other end face abuts the protective tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention incorporates a battery, a circuit board assembly, and a motor. The circuit board assembly controls the output shaft of the battery-driven motor to rotate, causing a rotating disk fixedly mounted on the motor's output shaft to rotate. This, in turn, drives a movable rod and a limiting disk to reciprocate along their axial direction, enabling the tube clamp, liquid bottle, plug, and nano-microneedle wafer to move synchronously. The nano-microneedles can achieve high-frequency vibration, quickly piercing human skin, such as the face, and delivering nutrients from the liquid bottle into the skin. Simultaneously, the nano-microneedles stimulate the skin to activate its repair mechanism, promoting collagen regeneration, thereby achieving the effects of firming and brightening the skin.

[0017] By setting up a connecting sleeve, a guide sleeve, and a spring, the buffer sleeve on the movable rod is always in contact with the guide sleeve. The rotation of the guide sleeve drives the buffer sleeve and the movable rod to reciprocate. While realizing the high-frequency reciprocating motion of the movable rod, this structure occupies little space, which reduces the overall size of this electric nanoneedle instrument, making it easier to carry and operate.

[0018] By incorporating detachable rear, middle, and front tubes, this electric nanoneedle instrument facilitates the organization, maintenance, and replacement of liquid bottles and nanoneedle wafers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure from a first-view perspective of an embodiment of the present utility model.

[0021] Figure 3 This is an exploded structural diagram of an embodiment of the present invention.

[0022] Figure 4 This is a half-sectional structural diagram of an embodiment of the present utility model.

[0023] Figure 5 for Figure 4 A magnified structural diagram at point A.

[0024] Figure 6 This is a half-sectional three-dimensional structural diagram of the rear section pipe according to an embodiment of the present utility model.

[0025] Figure 7 This is a schematic diagram of the circuit board assembly according to an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the motor, rotating disk, and movable rod in an embodiment of this utility model.

[0027] Figure 9 This is a schematic diagram of the structure of the fixing sleeve according to an embodiment of the present utility model.

[0028] Figure 10 This is a first-view structural diagram of the card tube according to an embodiment of the present invention.

[0029] Figure 11 This is a second-view structural diagram of the card tube according to an embodiment of the present invention.

[0030] Figure 12 This is a schematic diagram of the structure of the protective sleeve according to an embodiment of the present utility model.

[0031] Figure 13 This is a schematic diagram of the front section pipe in an embodiment of the present invention.

[0032] In the diagram: 1. Shell; 11. Rear section pipe; 111. Rear section pipe step one; 112. Rear section pipe step two; 113. Rear section pipe groove; 114. Rear section pipe annular groove; 12. Middle section pipe; 121. Protective pipe; 13. Front section pipe; 131. Limiting groove; 14. Protective sleeve; 141. Protective sleeve retaining block; 15. Positioning ring; 16. Plug.

[0033] 2. Electric drive assembly; 21. Battery; 22. Circuit board assembly; 221. Circuit board; 2211. Circuit board step one; 2212. Circuit board step two; 222. Switch; 223. Charging port; 23. Motor; 24. Rotating disk; 241. Connecting sleeve; 242. Guide sleeve.

[0034] 3. Fixing sleeve; 31. Fixing sleeve body; 311. Guide groove; 32. Limiting sleeve; 33. Baffle; 331. Baffle through hole.

[0035] 4. Movable rod; 41. Limiting plate; 411. Guide block; 42. Guide rod; 43. Buffer sleeve; 44. Spring.

[0036] 5. Pipe clamp; 51. Pipe clamp body; 511. Pipe clamp groove; 512. Limiting protrusion; 52. Sliding tube; 53. Fastening screw; 54. Partition plate; 55. Plug; 551. Plug through groove.

[0037] 6. Liquid bottle; 7. Nano-microneedle wafer. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0040] See appendix Figure 1 , 2 As shown in Figures 3 and 4, an electric nanoneedle device includes a housing 1. In this embodiment, the housing 1 has a three-section structure, namely, it sequentially includes a rear section tube 11, a middle section tube 12, and a front section tube 13, which are detachably connected to each other and are hollow inside. For details, see [link to documentation]. Figure 4 As shown, in order to facilitate the disassembly and assembly of the rear section pipe 11, the middle section pipe 12 and the front section pipe 13, the right end opening of the middle section pipe 12 is threaded to the left end opening of the rear section pipe 11, and the right end opening of the front section pipe 13 is threaded to the left end opening of the middle section pipe 12.

[0041] See Figure 12 As shown, a hollow protective sleeve 14 is further provided at the left end opening of the front tube 13. A number of protective sleeve blocks 141 are evenly distributed and fixedly connected to one end of the protective sleeve 14. The protective sleeve blocks 141 are arranged along the circumferential direction of the protective sleeve 14 and can be detachably installed in the left end opening of the front tube 13.

[0042] See Figure 4 , 6As shown in Figure 7, an electric drive assembly 2 is fixedly connected inside the rear tube 11. The electric drive assembly 2 includes a battery 21, a circuit board assembly 22, and a motor 23. Specifically, the circuit board assembly 22 is existing technology, and it includes a circuit board 221 and a switch 222 disposed on the circuit board 221. The battery 21 is fixedly bonded to the lower end face of the circuit board 221. The battery 21 can be an existing rechargeable lithium battery. The battery 21 is electrically connected to the motor 23. A charging port 223 is also fixedly installed on the circuit board 221. The charging port 223 is an existing structure and is used to charge the battery 21. Thus, the circuit board 221, the battery 21, and the charging port 223 are electrically connected. When the switch 222 extends to the outside of the rear tube 11 and is pressed, the circuit board 221 can control the battery 21 to supply power to the motor 23, thereby causing the output shaft of the motor 23 to rotate.

[0043] In this embodiment, to facilitate the mounting of the battery 21, the circuit board 221, and the charging port 223 within the rear section tube 11, the circuit board 221 is designed in a two-stage stepped shape, i.e., as shown... Figure 7 As shown, the width of circuit board 221 increases twice from right to left, thus forming circuit board step one 2211 and circuit board step two 2212. Correspondingly, the inner circumference of the rear section tube 11 also has a corresponding two-stage step shape, see [reference]. Figure 6 As shown, the inner diameter of the rear section pipe 11 increases twice from right to left, thus forming the rear section pipe step one 111 and the rear section pipe step two 112. A rear section pipe groove 113 is provided on the inner circumference of the rear section pipe 11 on the left side of the rear section pipe step two 112 along its length.

[0044] With the above structure, the circuit board 221 enters the rear tube groove 113 inside the rear tube 11 through the left opening of the rear tube 11, and finally makes the circuit board step 1 2211 abut against the rear tube step 111, and the rear tube step 2 112 abut against the rear tube step 2 112, and finally makes the left side of the circuit board 221 locked in the rear tube groove 113, thereby positioning and fixing the circuit board 221 in the circumferential direction.

[0045] Furthermore, in order to position and fix the circuit board 221 circumferentially, see... Figure 6 As shown, a rear section tube circumference groove 114 is formed on the inner circumference of the rear section tube 11 on the left side of the rear section tube groove 113. A positioning ring 15 is embedded in the rear section tube circumference groove 114, that is, the positioning ring 15 is fixedly embedded at the connection between the rear section tube 11 and the middle section tube 12. The vertical end face of the positioning ring 15 abuts against the vertical end face of the circuit board 221. A plug 16 is fixedly embedded at the rear end of the rear section tube 11 (i.e., the right end of the rear section tube 11). The plug 16 can be glued to the rear section tube 11. A plug 16 through groove is formed on the plug 16, and the charging port 223 is embedded in the plug 16 through groove.

[0046] With the above structure, the circuit board 221, circuit board assembly 22, charging port 223 and battery 21 are fixedly connected in the rear section tube 11 between the positioning ring 15 and the plug 16.

[0047] See Figure 4 , 5 As shown, a hollow protective tube 121 is embedded in the middle section tube 12 on the left side of the positioning ring 15. The protective tube 121 can be coaxially arranged with the middle section tube 12, and the right vertical end face of the protective tube 121 abuts against the left vertical end face of the positioning ring 15. The motor 23 is fixedly embedded in the protective tube 121. To prevent the motor 23 from moving to the left, the motor 23 can be coaxially arranged with the protective tube 121, and the housing of the motor 23 can abut against the left vertical end face of the positioning ring 15.

[0048] See Figure 5 , 8 As shown in Figures 9 and 10, a rotating disk 24 with an inclined end face is fixedly sleeved on the output shaft of motor 23. The rotating disk 24 includes a connecting sleeve 241 sleeved on the output shaft of motor 23 and a guide sleeve 242 fixedly connected to one end of the connecting sleeve 241. The guide sleeve 242 is integrally formed with the connecting sleeve 241, and the outer diameter of the guide sleeve 242 is larger than the outer diameter of the connecting sleeve 241. The connection method between the connecting sleeve 241 and the output shaft of motor 23 is existing technology, which only requires the output shaft of motor 23 to drive the connecting sleeve 241 to rotate. The end face of the guide sleeve 242 facing away from motor 23 is an inclined structure, and the distance between this end face and the other end face of the guide sleeve 242 first increases and then decreases along the circumference of the guide sleeve 242. The output shaft of motor 23, the connecting sleeve 241, and the guide sleeve 242 can be arranged coaxially.

[0049] A fixing sleeve 3 is embedded in the protective tube 121 outside the guide sleeve 242 along the length of the protective tube 121. The fixing sleeve 3 can be coaxially arranged with the protective tube 121. The fixing sleeve 3 includes a fixing sleeve body 31 that passes through the protective tube 121 and a limiting sleeve 32 that is coaxially fixedly connected to one end face of the fixing sleeve body 31. The limiting sleeve 32 is integrally formed with the fixing sleeve body 31, and the outer diameter of the limiting sleeve 32 is larger than the outer diameter of the fixing sleeve body 31.

[0050] See Figure 13 As shown, a limiting groove 131 is formed on the inner circumference of the right side of the front section pipe 13. The middle section pipe 12 is threaded into the limiting groove 131. A limiting sleeve 32 is embedded between the left end face of the middle section pipe 12 and the bottom of the limiting groove 131. One end face of the limiting sleeve 32 abuts against the bottom of the limiting groove 131, and its other end face abuts against the protective pipe 121. Thus, with the above structure, the fixing sleeve 3 can be fixed in the protective pipe 121.

[0051] like Figure 5As shown, a vertical baffle 33 is integrally formed at the connection between the fixed sleeve body 31 and the limiting sleeve 32. A baffle through hole 331 is horizontally opened on the baffle 33. A movable rod 4 is slidably inserted in the baffle through hole 331. A limiting disk 41 is integrally formed and fixedly connected to the movable rod 4 inside the fixed sleeve body 31. Since the limiting disk 41 needs to slide back and forth inside the fixed sleeve body 31, in order to reduce the friction between the outer circumference of the limiting disk 41 and the inner circumference of the fixed sleeve body 31, multiple guide blocks 411 are evenly distributed and integrally formed and fixedly connected on the outer circumference of the limiting disk 41 along the length direction of the movable rod 4. The guide blocks 411 can abut against the inner circumference of the fixed sleeve body 31.

[0052] like Figure 5 As shown, a guide rod 42 is fixedly connected to the end of the movable rod 4 on the right side of the limiting disk 41. The guide rod 42 is perpendicular to the movable rod 4 and the two are integrally formed. A buffer sleeve 43 is sleeved on the guide rod 42, and the buffer sleeve 43 abuts against the inclined end face of the guide sleeve 242. A spring 44 in a compressed state is sleeved on the movable rod 4 on the side of the limiting disk 41 away from the rotating disk 24. The two ends of the spring 44 abut against the baffle 33 and the limiting disk 41 respectively. Under the elastic force of the spring 44, the outer circumference of the buffer sleeve 43 on the guide rod 42 abuts against the inclined surface of the guide sleeve 242. When the inclined end face of the guide sleeve 242 rotates, it can drive the guide rod 42 to move along the length direction of the movable rod 4 and drive the movable rod 4 to reciprocate.

[0053] In order to further guide the movable rod 4 and limit its circumferential movement, a guide groove 311 is provided on the inner circumference of the fixed sleeve body 31 opposite to the end of the guide rod 42 along its length direction, and the end of the guide rod 42 can be slidably embedded in the guide groove 311.

[0054] See Figure 10 , 11 As shown, a clamping tube 5 is fitted onto the movable rod 4 within the through hole 331 of the baffle. The clamping tube 5 includes a clamping tube body 51 with an opening on one side and a hollow interior, and a sliding tube 52 integrally formed and fixedly connected to the other side of the clamping tube body 51. The sliding tube 52 can slide through the through hole 331 of the baffle and is fitted onto the movable rod 4. A fastening screw 53 passes through the clamping tube body 51 and is threaded into the movable rod 4 within the sliding tube 52 to fix the clamping tube 5 onto the movable rod 4. Multiple clamping grooves 511 are evenly distributed at the opening of the clamping tube body 51, and the clamping grooves 511 are formed by extending inward from one end of the clamping tube body 51. A limiting protrusion 512 is provided on the inner side of the opening of the clamping tube body 51. The clamping tube body 51 is made of elastic material.

[0055] The liquid bottle 6 is detachably secured within the clamping tube body 51. A partition 54 is embedded between the bottom of the liquid bottle 6 and the fastening screw 53 to prevent the fastening screw 53 from scratching the liquid bottle 6. The opening of the liquid bottle 6 extends into the protective sleeve 14.

[0056] A plug 55 is detachably and fixedly inserted into the opening of the tube body 51 inside the protective sleeve 14. On the outer end face of the plug 55 (e.g., Figure 5 On the left side of the middle, a plug groove 551 is provided. A nano-microneedle chip 7 is detachably and fixedly embedded on the end face of the plug 55 outside the plug groove 551. The specific structure of the nano-microneedle chip 7 is the existing technology, that is, it can pierce the skin during reciprocating motion and allow the beauty liquid of the liquid bottle 6 to enter the skin through the plug groove 551 and the microneedles on the nano-microneedle chip 7.

[0057] The specific working principle and process of this embodiment are as follows:

[0058] Install each component according to this instruction manual. Figure 1 , 2 As shown in Figure 4, the liquid bottle 6 is now filled with beauty essence.

[0059] Pressing switch 222 triggers the existing switch module on circuit board 221. The existing control module on circuit board 221 controls battery 21 to supply power to motor 23. The output shaft of motor 23 drives rotating disk 24 to rotate. Guide sleeve 242 drives buffer sleeve 43 and movable rod 4 to reciprocate along the length of housing 1, thereby driving tube 5, liquid bottle 6, and nano-microneedle chip 7 to reciprocate at high speed along the length of housing 1. The microneedles on nano-microneedle chip 7 reciprocate to pierce human skin. The beauty liquid in liquid bottle 6 is agitated by the reciprocating motion of liquid bottle 6 and enters human skin through plug groove 551 and nano-microneedle chip 7. It should be noted that this electric nano-microneedle instrument can be moved on the skin that needs maintenance during use, so that the microneedles on nano-microneedle chip 7 can pierce the entire skin that needs maintenance and inject maintenance liquid. The protective sleeve 14 mainly protects the user's skin and prevents the microneedles on nano-microneedle chip 7 from piercing the skin too deeply, that is, during the reciprocating motion of movable rod 4, if Figure 5 As shown, when the movable lever 4 moves to the leftmost position, the microneedles on the nano-microneedle chip 7 extend out of the protective sleeve 14 to pierce the skin. When the movable lever 4 moves to the rightmost position, the microneedles on the nano-microneedle chip 7 can retract into the protective sleeve 14. In order to allow the liquid in the liquid bottle 6 to flow out completely, this electric nano-microneedle instrument can be used vertically or at an angle.

[0060] All technologies not described in this specification are existing technologies. The circuit board components 22 used in this utility model, such as circuit board 221, switch 222, and charging port 223, have existing technologies in terms of connection method and working principle, and will not be described in detail here. As long as they can meet the above working process, they are acceptable.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrically powered nanoneedle instrument comprising: The housing is characterized in that: a battery is fixedly connected inside the housing, and the battery is electrically connected to a circuit board assembly and a motor; A rotating disk with an inclined end face is fixedly sleeved on the output shaft of the motor. A fixed sleeve is fixedly embedded in the housing along its length. A movable rod is slidably passed through the fixed sleeve. A limiting disk is fixedly connected to the movable rod. A spring in a compressed state is sleeved on the movable rod on the side of the limiting disk away from the rotating disk. The spring causes one end of the movable rod to abut against the inclined surface of the rotating disk. The other end of the movable rod is fixedly connected to the clamp tube. The liquid bottle is detachably clamped in the clamp tube. A plug is fixedly inserted at the opening of the clamp tube. Nano needles are provided on the outer end face of the plug. The motor drives the rotating disk to rotate and causes the movable rod, clamp tube, liquid bottle, plug and nano needles to reciprocate along the length of the shell, and the liquid in the liquid bottle can flow out through the nano needles.

2. The electrically operated nanoneedle instrument according to claim 1, wherein: The rotating disk includes a connecting sleeve sleeved on the motor output shaft and a guide sleeve fixedly connected to one end of the connecting sleeve. The motor output shaft, the connecting sleeve and the guide sleeve are coaxially arranged. The end face of the guide sleeve facing away from the motor is a sloping structure. The distance between the end face of the guide sleeve on this side and the end face on the other side increases and then decreases along the circumference of the guide sleeve.

3. The electrically powered nanoneedle instrument according to claim 2, characterized in that: A guide rod is fixedly connected to the end of the movable rod near the guide sleeve. The guide rod is set perpendicular to the movable rod. When the inclined end face of the guide sleeve rotates, it drives the guide rod and causes the movable rod to reciprocate.

4. The electrically operated nanoneedle instrument according to claim 3, wherein: A buffer sleeve is fitted onto the guide rod, and the buffer sleeve abuts against the inclined end face of the guide sleeve.

5. The electrically operated nanoneedle instrument of claim 1, wherein: Guide blocks are evenly distributed and fixedly connected on the outer circumference of the limiting plate along the length of the movable rod.

6. The electrically operated nanoneedle instrument of claim 1, wherein: The clamping tube includes a clamping tube body with an opening on one side and a sliding tube fixedly connected to the other side of the clamping tube body. The sliding tube can slide through the fixed sleeve and be sleeved on the movable rod. The fastening screw passes through the clamping tube body and is threaded into the movable rod to fix the clamping tube to the movable rod.

7. The electrically operated nanoneedle instrument of claim 1, wherein: The housing has a three-section structure, which includes a rear section tube, a middle section tube, and a front section tube that are detachably connected to each other. A positioning ring is fixedly embedded at the connection between the rear section tube and the middle section tube. A plug is fixedly embedded at the rear end of the rear section tube. The circuit board assembly is fixedly connected in the rear section tube between the positioning ring and the plug.

8. The electrically powered nanoneedle instrument according to claim 7, characterized in that: A protective tube is installed inside the middle section pipe, and the motor is embedded in the protective tube; the fixing sleeve includes a fixing sleeve body installed inside the protective tube and a limiting sleeve coaxially fixedly connected to one end face of the fixing sleeve body, the outer diameter of the limiting sleeve is larger than the outer diameter of the fixing sleeve body; a limiting groove is opened on the inner circumference of the front section pipe, one end face of the limiting sleeve abuts the bottom of the limiting groove and the other end face abuts the protective tube.

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