Multifunctional beauty needle

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a multifunctional beauty needle which comprises a syringe and a needle head, the needle head is detachably connected to the syringe, and two containing grooves are further formed in the syringe; the limiting mechanism is installed in the containing groove and used for limiting the puncture length of the needle head; the injection mechanism is mounted in the injection cylinder and is used for pushing out the medicament in the injection cylinder; the liquid pumping mechanism is also arranged in the syringe and is used for pumping the medicament; the guide rod is connected to the syringe; and the positioning mechanism is arranged on the guide rod and is used for limiting the moving stroke of the injection mechanism. By designing the limiting mechanism and the positioning mechanism, the skin puncturing depth of the needle head and the medicament injection amount can be accurately controlled. Different beautifying preparations can be injected into corresponding layers of the skin to achieve the best effect, and risks caused by too deep or too shallow injection are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a multifunctional cosmetic needle. Background Art

[0002] Acupuncture is a medical cosmetic procedure that uses the injection of drugs or biological agents to achieve cosmetic results. There are many different types of acupuncture, including botulinum toxin injections, hyaluronic acid fillers, and dermabrasion.

[0003] In the field of medical aesthetics, different cosmetic agents require injection into different layers of the skin to achieve optimal results. For example, botulinum toxin needs to be injected into the muscle layer; hyaluronic acid fillers need to be injected into the deep dermis or subcutaneous tissue; collagen stimulators (such as the "baby face injection") need to be injected into the superficial fat layer; and whitening agents need to be injected into the superficial dermis. Furthermore, different needles are used for injection into different skin layers. For example, sharp needles (rigid tips) are suitable for deep, precise injections but can easily damage blood vessels; blunt needles (flexible tips) are suitable for superficial, diffuse injections but cannot penetrate dense tissue.

[0004] Currently, there are many types of cosmetic needles on the market, such as a cosmetic needle with Chinese patent application number CN202322660157.4, which includes a syringe with a piston slidably connected to the inner wall of the syringe, a push shaft fixedly mounted on the bottom of the piston, a push plate fixedly mounted on the bottom of the push shaft, a limit block fixedly mounted on the outer edge of the piston, a limit groove formed on the inner wall of the syringe, and a connection port fixedly mounted on the top of the syringe. The syringe is sealed by separating the piston, push shaft, push plate, and syringe, disinfecting, cleaning, and drying them separately, and then reassembling them after the operation is completed. The connection plate is then pulled to snap the sealing ring into the inner wall of the connection port, thereby preventing dust and foreign matter from entering the inner cavity of the syringe when not in use. This avoids the problem of existing devices failing to seal the connection port after drying, which allows dust and foreign matter to enter, thereby affecting the hygienic safety of the next use, and thus improves the practicality of the device.

[0005] The lack of a depth control mechanism is particularly problematic in cosmetic needles like those in the aforementioned reference documents. This not only creates operational inconvenience but also presents numerous potential risks. During injection, even the slightest hand shake or varying resistance from different tissues can cause the needle to shift. This uncontrolled shift often results in inaccurate injection depth, either over-deep, penetrating the target area, or too shallow, failing to achieve the desired cosmetic effect.

[0006] More seriously, uncontrolled injection depth can lead to a host of serious complications. Injecting too deeply can damage vital tissues like blood vessels and nerves, even leading to vascular embolism and catastrophic consequences like local ischemia and necrosis. Injecting too shallowly can result in uneven distribution of the filler, forming nodules and masses, severely impacting aesthetics and even requiring secondary surgery for repair.

[0007] Another major drawback of this device is its inability to administer medication in a quantitative manner. In cosmetic surgery, medication dosage often requires precise control to ensure safety and effectiveness. However, due to the lack of a precise dosing mechanism, operators often rely on experience and intuition when administering the medication, which undoubtedly increases the risk and uncertainty of the procedure. Summary of the Invention

[0008] The purpose of the present invention is to provide a multifunctional cosmetic needle, which realizes the technical effects of controllable depth, precise dosage, convenient operation, safety and reliability during the cosmetic needle injection process.

[0009] The technical solutions adopted by the present invention are as follows: A multifunctional cosmetic needle comprises a syringe and a needle, wherein the needle is detachably connected to the syringe, and the syringe is provided with two receiving grooves; A limiting mechanism, which is installed in the accommodating groove and is used to limit the puncture length of the needle; An injection mechanism, installed in the syringe and used to push out the medicine in the syringe; A liquid extraction mechanism is also provided in the syringe and is used to extract medicine; A guide rod connected to the injection barrel; A positioning mechanism is provided on the guide rod and is used to limit the movement stroke of the injection mechanism.

[0010] In a preferred embodiment, the inner cavity of the syringe is sprayed with a hydrophobic coating, and the syringe is made of medical transparent plastic.

[0011] In a preferred embodiment, the needle is made of medical-grade alloy and is polished with high precision.

[0012] In a preferred embodiment, the guide rod is provided with lock holes distributed in an array, and the surface of the guide rod is provided with scale lines.

[0013] In a preferred embodiment, the limiting mechanism includes a rotating block, which is rotatably connected in the accommodating groove. A hollow rod is fixedly connected to the rotating block, and the interior of the hollow rod is a hexagonal groove. Through holes are distributed in an array on the hollow rod. A blocking block is also fixedly connected to the hollow rod, and an anti-slip groove is provided on the outer surface of the hollow rod. A hexagonal column is slidably inserted in the rotating block, and the upper ends of the hexagonal columns are connected to rubber bumps distributed in an array, and one end of the hexagonal column is fixedly connected to a baffle.

[0014] In a preferred embodiment, the injection mechanism includes a mounting plate, which is fixedly connected to the upper end of the guide rod, and a semi-threaded rod is rotatably connected to the mounting plate through a bearing, one end of the semi-threaded rod is threadedly connected to a threaded barrel, one end of the threaded barrel is fixedly connected to a moving block, one end of the semi-threaded rod is fixedly connected to a torsion wheel, one end of the threaded barrel is fixedly connected to a guide block, and the guide block is slidably connected to the guide rod.

[0015] In a preferred embodiment, the pumping mechanism includes a pull rod, which is piston-type inserted into the semi-threaded rod and passes through the moving block. One end of the pull rod is fixedly connected to the piston block, and the other end of the pull rod is fixedly connected to the ball.

[0016] In a preferred solution, a sealing ring is provided on one side of the piston block, and a sealing groove adapted to the sealing ring is opened on one side of the moving block.

[0017] In a preferred embodiment, the positioning mechanism includes a slider, which is slidably connected to a guide rod, a sleeve block is fixedly connected to the slider, a locking rod is slidably inserted into the slider, one end of the locking rod is fixedly connected to a movable plate, and a tension spring is fixedly connected between the movable plate and the slider.

[0018] The technical effects achieved by the present invention are: By designing a limiting mechanism and a positioning mechanism, this invention can precisely control the depth of needle penetration and the amount of medication injected. Adjusting the limiting mechanism ensures that different cosmetic products are injected into the appropriate skin layer for optimal results, avoiding the risks of overly deep or shallow injections. The positioning mechanism further ensures the accuracy of the injection dose, reduces operational errors caused by factors such as hand tremors, and improves the safety and effectiveness of the procedure. The present invention achieves a perfect combination of rapid extraction and slow ejection of medicines through independently arranged pumping and injection mechanisms. The pumping mechanism can generate a high-speed negative pressure adsorption effect in a short period of time, quickly sucking the medicine into the syringe; while the injection mechanism can push the piston block to perform axial displacement at a relatively low speed to ensure the accurate discharge of the medicine. The coordinated work of the two not only ensures the precise control of the injection of medicines, but also greatly improves work efficiency, meeting the dual needs of the medical cosmetology field for efficiency and accuracy in medicine processing. This innovation solves the problem of difficult quantitative drug administration in the existing technology, significantly reducing the risk and uncertainty of surgery; The syringe barrel of this invention is made of medical-grade transparent plastic and sprayed with a hydrophobic coating on its inner cavity. This not only facilitates the observation of drug dosage, but also improves drug utilization and reduces residual drug residue. Furthermore, the needle is connected to the syringe barrel using a plug-in connection, making it easy to replace and clean. These features significantly enhance the device's ease of use. Furthermore, the needle is made of medical-grade alloy and undergoes high-precision polishing, reducing friction and damage to the skin during injection, thereby increasing safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 It is a right oblique view of the overall structure of the present invention; Figure 3 It is a schematic structural diagram of the limit mechanism of the present invention after it is unfolded; Figure 4 This invention Figure 3 Front view of Figure 5 This invention Figure 1 sectional view of Figure 6 1 is a disassembled schematic diagram of the limiting mechanism of the present invention; Figure 7 It is a structural schematic diagram of the positioning mechanism of the present invention; Figure 8 This invention Figure 7 sectional view of .

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Syringe; 2. Needle; 3. Receiving groove; 4. Limiting mechanism; 5. Injection mechanism; 6. Extraction mechanism; 7. Guide rod; 71. Lock hole; 8. Positioning mechanism; 401, rotating block; 402, hollow rod; 403, through hole; 404, blocking block; 405, anti-slip groove; 406, hexagonal prism; 407, rubber bump; 408, baffle; 501, mounting plate; 502, semi-threaded rod; 503, threaded barrel; 504, moving block; 505, torsion wheel; 506, guide block; 601, tie rod; 602, piston block; 603, ball; 801, slider; 802, sleeve block; 803, locking rod; 804, moving plate; 805, tension spring. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0024] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0025] Please see the attached Figure 1 As shown, this embodiment provides a multifunctional cosmetic needle, comprising a syringe 1 and a needle 2. The needle 2 is detachably connected to the syringe 1. The syringe 1 also has two receiving grooves 3. The inner cavity of the syringe 1 is sprayed with a hydrophobic coating, and the syringe 1 is made of medical transparent plastic. The limiting mechanism 4 is installed in the accommodating groove 3 and is used to limit the puncture length of the needle 2; An injection mechanism 5 is installed in the syringe 1 and is used to push out the medicine in the syringe 1; The liquid extraction mechanism 6 is also provided in the syringe 1 and is used to extract medicine; A guide rod 7 connected to the syringe 1; The positioning mechanism 8 is arranged on the guide rod 7 and is used to limit the movement stroke of the injection mechanism 5.

[0026] In this embodiment, an appropriate needle 2 (sharp or blunt) is selected based on actual usage. The shape and size of the receiving groove 3 match the limiting mechanism 4 to ensure that the limiting mechanism 4 can be securely installed within the receiving groove 3. When the needle 2 punctures the skin, the limiting mechanism 4 limits the puncture depth of the needle 2 to avoid excessive damage to the skin. The injection mechanism 5 and the extraction mechanism 6 respectively achieve slow injection and rapid extraction of the drug through specific mechanical structures. The provision of the guide rod 7 ensures the stability and accuracy of the injection mechanism 5 during movement. The positioning mechanism 8, by cooperating with the guide rod 7, precisely controls the movement of the injection mechanism 5, thereby achieving precise control of the injection volume.

[0027] Next, please refer to Figure 1 The inner cavity of the syringe 1 is sprayed with a hydrophobic coating, and the syringe 1 is made of medical transparent plastic.

[0028] In this embodiment, the hydrophobic coating applied to the inner cavity of the syringe 1 helps reduce the adhesion of the drug to the inner wall of the syringe 1, thereby improving the utilization rate of the drug and reducing the possibility of drug residue. The choice of medical transparent plastic not only meets the need to observe the dosage of the drug, but also ensures the hygiene and safety of the syringe 1.

[0029] To further enhance the ease and safety of using the cosmetic needle, the exterior of the syringe 1 can be provided with graduated markings (not shown) to provide a more intuitive understanding of the dosage. Furthermore, the discharge end of the syringe 1 is plugged into the needle 2, allowing for convenient removal of residual medication or cleaning fluid when the medication needs to be replaced or the syringe 1 needs to be cleaned.

[0030] Secondly, please refer to Figure 1 , the needle 2 is made of medical grade alloy and is polished with high precision.

[0031] In this embodiment, the use of medical-grade alloy not only ensures the strength and durability of needle tip 2, but also provides excellent biocompatibility, avoiding the risk of allergic reactions or infections during injection. After high-precision polishing, the needle tip 2 achieves an incredibly smooth surface, further reducing friction and damage to the skin during injection, enhancing both overall cosmetic results and safety.

[0032] Please refer again Figure 4 and Figure 6The limiting mechanism 4 includes a rotating block 401, which is rotatably connected to the accommodating groove 3. A hollow rod 402 is fixedly connected to the rotating block 401, and the interior of the hollow rod 402 is a hexagonal groove. Through holes 403 are distributed in an array on the hollow rod 402. A blocking block 404 is also fixedly connected to the hollow rod 402. An anti-slip groove 405 is provided on the outer surface of the hollow rod 402. A hexagonal prism 406 is slidably inserted in the rotating block 401. The upper ends of the hexagonal prisms 406 are connected to rubber bumps 407 distributed in an array, and one end of the hexagonal prism 406 is fixedly connected to a baffle 408.

[0033] In this embodiment, before injection, the limiting mechanism 4 is first adjusted to the activated state (such as Figure 3 Specific operation steps are as follows: rotate the rotating block 401 180 degrees to ensure that the blocking block 404 is tightly against the top of the needle 2, thereby ensuring the stability of the connection between the needle 2 and the syringe 1 and preventing the needle 2 from loosening or falling off during the injection process.

[0034] After the rotational adjustment is completed, the length of the hexagonal prism 406 extending from the hollow rod 402 is adjusted according to the predetermined depth to which the needle 2 needs to be inserted into the skin. To operate, the hexagonal prism 406 is pulled firmly, causing it to slide along the hollow rod 402. During the sliding process, the rubber bump 407 will deform due to the force, causing it to disengage from the through-hole 403. When the hexagonal prism 406 moves to the appropriate position, the rubber bump 407 will return to its original shape and reinsert into the corresponding through-hole 403, securing the position of the hexagonal prism 406. The medical professional can then grasp the anti-slip groove 405 on the hexagonal prism 406 and guide the needle 2 through the patient's skin. When the baffle 408 contacts the patient's skin surface, further advancement of the needle 2 is prevented, thereby precisely controlling the insertion depth of the needle 2. During the injection process, the baffle 408 maintains contact with the patient's skin surface, ensuring that the needle 2 is in a stable position and is not easily displaced.

[0035] Please refer again Figure 4 and Figure 5 The injection mechanism 5 includes a mounting plate 501, which is fixedly connected to the upper end of the guide rod 7. A semi-threaded rod 502 is rotatably connected to the mounting plate 501 through a bearing. One end of the semi-threaded rod 502 is threadedly connected to a threaded barrel 503. One end of the threaded barrel 503 is fixedly connected to a moving block 504. One end of the semi-threaded rod 502 is fixedly connected to a torsion wheel 505. One end of the threaded barrel 503 is fixedly connected to a guide block 506, and the guide block 506 is slidably connected to the guide rod 7.

[0036] In this embodiment, twisting the operating wheel 505 drives the semi-threaded rod 502 to generate axial rotational motion. This rotational motion is converted into linear displacement of the threaded barrel 503 through threaded engagement. The guide block 506 connected to the threaded barrel 503 forms a sliding structure with the fixed guide rod 7, effectively constraining the threaded barrel 503 to axial movement and prohibiting circumferential rotation. The linear movement of the threaded barrel 503 simultaneously drives the fixed movable block 504 to perform equidistant translation. This movable block 504 directly abuts and pushes the piston block 602 to precisely advance the syringe 1, thereby achieving quantitative control of the drug discharge. Through the constrained engagement between the guide rod 7 and the guide block 506, this transmission mechanism significantly improves the motion stability of the propulsion system, eliminates the radial offset that is prone to occur in traditional screw transmissions, and ensures precise control of the drug injection volume.

[0037] Please refer again Figure 5 The liquid pumping mechanism 6 includes a pull rod 601, which is piston-inserted into the semi-threaded rod 502 and passes through the moving block 504. One end of the pull rod 601 is fixedly connected to the piston block 602, and the other end of the pull rod 601 is fixedly connected to the ball 603. A sealing ring is provided on one side of the piston block 602, and a sealing groove adapted to the sealing ring is provided on one side of the moving block 504.

[0038] In this embodiment, in the syringe's initial state, piston block 602 is tightly fitted against the outlet end of syringe barrel 1. To initiate aspiration, needle 2 is first inserted into the liquid medicine container. Pulling ball 603 then pulls on pull rod 601, causing piston block 602 to move linearly along the inner wall of syringe barrel 1 toward the medicine chamber, creating negative pressure to draw the liquid medicine. When piston block 602 reaches the predetermined assembly position, the elastic sealing ring formed thereon creates an interference fit with the sealing groove within guide block 504, forming a pressure-compensating sealing interface.

[0039] Before injection is performed, the piston block 602 is controlled by the injection mechanism 5 to perform a reset movement of a preset stroke, so that the bubbles retained in the flow channel of the syringe barrel 1 and the lumen of the needle 2 are completely discharged.

[0040] While injection mechanism 5 drives piston 602 axially through high-precision fluid displacement control, the movement speed of piston 602 is relatively slow due to the need for precise fluid control. However, pumping mechanism 6, using an independent structure, drives piston 602 to rapidly withdraw and pull the medication, creating a high-speed negative pressure adsorption effect within syringe barrel 1, rapidly drawing the medication into syringe barrel 1. When these two mechanisms work together, the precise displacement characteristics of injection mechanism 5 and the rapid linear motion of pumping mechanism 6 form a complementary working mechanism, ensuring both precise control of medication injection and rapid medication withdrawal.

[0041] Please refer again Figure 7 and Figure 8 The positioning mechanism 8 includes a slider 801, which is slidably connected to the guide rod 7, a sleeve block 802 is fixedly connected to the slider 801, a locking rod 803 is slidably inserted into the slider 801, one end of the locking rod 803 is fixedly connected to a movable plate 804, and a tension spring 805 is fixedly connected between the movable plate 804 and the slider 801.

[0042] In this embodiment, the positioning mechanism 8 allows precise control of the injection volume of the medication. Specifically, the operator pulls the movable plate 804 outward, driving the locking rod 803 to overcome the elastic resistance of the tension spring 805 and disengage from the locking hole 71 on the guide rod 7. The unrestricted slider 801, carrying the sleeve block 802, can slide freely along the axial direction of the guide rod 7. When the movable plate 804 is released to the target position, the locking rod 803 automatically rebounds under the elastic return action of the tension spring 805 and engages with the corresponding locking hole 71, thereby achieving rapid positioning and locking of the slider 801.

[0043] During the injection control process, the guide block 506 in the threaded drive assembly forms a mechanical limit when it contacts the slider 801. By presetting the travel distance between the slider 801 and the guide block 506, the travel of the threaded barrel 503 can be precisely limited, thereby achieving linear control of the injection volume of the medicine.

[0044] In addition, the sleeve block 802 and the threaded barrel 503 form a sliding structure. Through the cooperation between the sleeve block 802 and the threaded barrel 503, a guiding function can be further played to ensure the stability of the movement of the threaded barrel 503.

[0045] Next, please refer to Figure 1 The guide rod 7 is provided with locking holes 71 distributed in an array, and the surface of the guide rod 7 is provided with scale lines.

[0046] In this embodiment, by observing the graduated lines, the precise distance between the slider 801 and the guide block 506 can be intuitively determined. This intuitive measurement method clearly displays the movable length of the threaded barrel 503. Since the travel of the threaded barrel 503 is directly related to the travel distance of the piston block 602, the movement of the piston block 602 can be precisely controlled, thereby achieving precise control over the amount of medication ejected from the syringe 1. This method ensures that the injection volume of medication achieves the desired accuracy, thereby providing patients with an accurate and precise medication dose.

[0047] The working principle of the present invention is: The depth of the needle 2 penetrating the skin is controlled by the limiting mechanism 4 to prevent excessive damage to the skin; the injection mechanism 5 uses a threaded transmission method to drive the piston block 602 to move precisely in the syringe 1 to achieve the quantitative injection of the medicine; the pumping mechanism 6 uses an independent structure to quickly pull out the piston block 602 to efficiently extract the medicine; the guide rod 7 is used in conjunction with the positioning mechanism 8 to ensure that the injection mechanism 5 operates stably and can accurately adjust the injection stroke; at the same time, the inner wall of the syringe 1 is sprayed with a hydrophobic coating to reduce the residual medicine liquid, combined with the medical transparent plastic material and scale mark design, to improve the convenience of medicine observation and the safety of use.

[0048] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A multifunctional cosmetic needle, characterized by: It comprises a syringe (1) and a needle (2), wherein the needle (2) is detachably connected to the syringe (1), and the syringe (1) is further provided with two receiving grooves (3); A limiting mechanism (4), the limiting mechanism (4) being installed in the accommodating groove (3) and used to limit the puncture length of the needle (2); An injection mechanism (5), the injection mechanism (5) being installed in the syringe (1) and used to push out the medicine in the syringe (1); A liquid extraction mechanism (6), which is also disposed in the syringe (1) and is used to extract medicine; A guide rod (7), the guide rod (7) being connected to the injection barrel (1); A positioning mechanism (8) is provided on the guide rod (7) and is used to limit the movement stroke of the injection mechanism (5).

2. The multifunctional cosmetic needle according to claim 1, characterized in that: The inner cavity of the syringe (1) is sprayed with a hydrophobic coating, and the syringe (1) is made of medical transparent plastic.

3. The multifunctional cosmetic needle according to claim 1, characterized in that: The needle (2) is made of medical-grade alloy and is polished to high precision.

4. The multifunctional cosmetic needle according to claim 1, characterized in that: The guide rod (7) is provided with lock holes (71) distributed in an array, and the surface of the guide rod (7) is provided with scale lines.

5. The multifunctional cosmetic needle according to claim 1, characterized in that: The limiting mechanism (4) includes a rotating block (401), the rotating block (401) is rotatably connected in the accommodating groove (3), a hollow rod (402) is fixedly connected to the rotating block (401), and the interior of the hollow rod (402) is a hexagonal groove, the hollow rod (402) is provided with through holes (403) distributed in an array, the hollow rod (402) is also fixedly connected to a blocking block (404), the outer surface of the hollow rod (402) is provided with an anti-slip groove (405), a hexagonal prism (406) is slidably inserted in the rotating block (401), the upper end of the hexagonal prism (406) is connected with a rubber protrusion (407) distributed in an array, and one end of the hexagonal prism (406) is fixedly connected to a baffle (408).

6. The multifunctional cosmetic needle according to claim 1, characterized in that: The injection mechanism (5) includes a mounting plate (501), the mounting plate (501) is fixedly connected to the upper end of the guide rod (7), a semi-threaded rod (502) is rotatably connected to the mounting plate (501) via a bearing, one end of the semi-threaded rod (502) is threadedly connected to a threaded barrel (503), one end of the threaded barrel (503) is fixedly connected to a moving block (504), one end of the semi-threaded rod (502) is fixedly connected to a torsion wheel (505), one end of the threaded barrel (503) is fixedly connected to a guide block (506), and the guide block (506) is slidably connected to the guide rod (7).

7. The multifunctional cosmetic needle according to claim 6, characterized in that: The pumping mechanism (6) includes a pull rod (601), which is piston-type inserted into the semi-threaded rod (502) and passes through the moving block (504). One end of the pull rod (601) is fixedly connected to the piston block (602), and the other end of the pull rod (601) is fixedly connected to the ball (603).

8. The multifunctional cosmetic needle according to claim 7, characterized in that: A sealing ring is provided on one side of the piston block (602), and a sealing groove adapted to the sealing ring is provided on one side of the moving block (504).

9. The multifunctional cosmetic needle according to claim 1, characterized in that: The positioning mechanism (8) includes a slider (801), the slider (801) is slidably connected to the guide rod (7), a sleeve block (802) is fixedly connected to the slider (801), a locking rod (803) is slidably inserted into the slider (801), one end of the locking rod (803) is fixedly connected to a movable plate (804), and a tension spring (805) is fixedly connected between the movable plate (804) and the slider (801).

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