Laser beauty treatment device

Abstract

The invention relates to a laser beauty treatment device which comprises a treatment instrument, the treatment instrument comprises a shell, and a moving frame is arranged at the top end of the shell. Dynamic control and advanced anesthesia of cold air are achieved through the cold air deflection assembly and the form maintaining piece, and pain caused by laser burning is reduced; the airflow can form an annular belt surrounding the laser, so that the laser path is prevented from being interfered; and meanwhile, the exhaust fan rotates reversely to generate suction force to absorb smoke, so that the treatment comfort, safety and environmental cleanliness are improved.

Description

Technical Field

[0001] This invention belongs to the field of laser cosmetic treatment, specifically a laser cosmetic treatment device. Background Technology

[0002] Existing laser cosmetic treatment devices often cause intense pain to patients due to high temperatures during laser ablation treatments, affecting the treatment experience and effectiveness. Simultaneously, cold air anesthesia systems struggle to precisely control airflow direction and distribution, failing to provide pre-treatment local anesthesia and easily interfering with the laser path during operation. Furthermore, the fumes generated during treatment (such as skin burn residue) are difficult to absorb effectively, leading to environmental pollution and potential health risks. These problems stem from the rigid design of the cold air delivery components, insufficient airflow deflection mechanisms, and the lack of fume recovery functionality, limiting the comfort and safety of the device. Therefore, a new laser cosmetic treatment device is proposed. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Given the following technical problems in the existing technology: the pain caused by laser burning of the skin by existing laser cosmetic treatment devices is difficult to be relieved by precise cold air anesthesia, the cold air flow cannot be dynamically deflected to achieve local anesthesia first and avoid interfering with the laser operation, and the fumes generated during treatment are difficult to absorb effectively.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser cosmetic treatment device, including a treatment instrument, the treatment instrument including a housing, and a movable frame provided at the top of the housing;

[0006] The mobile frame includes a rotating frame one, a connecting frame one, a connecting frame two, a rotating frame two, and a handle arm. The rotating frame one is rotatably connected to the top of the housing. The rotating frame one is L-shaped. The top of the rotating frame one is rotatably connected to the connecting frame one. The connecting frame one is U-shaped. The connecting frame two is Z-shaped. The connecting frame one and the connecting frame two are rotatably connected. The end of the connecting frame two away from the connecting frame one is rotatably connected to the rotating frame two. The rotating frame two is connected to the laser treatment component through the handle arm.

[0007] The laser therapy device includes a working cylinder, a laser component, and a cold air deflection component. The handle arm is fixedly connected to the working cylinder, and the laser component and the cold air deflection component are installed inside the working cylinder.

[0008] As a preferred technical solution for a laser cosmetic treatment device, the housing is equipped with a display screen and a U-shaped handle.

[0009] As a preferred technical solution for a laser cosmetic treatment device, the laser treatment component also includes a limiting ring and a connecting rod. The working cylinder is provided with a connecting rod at the end away from the handle arm, and the connecting rod is fixedly connected to the limiting ring.

[0010] The cold gas deflection assembly is located on the outer ring of the laser assembly. The cold gas deflection assembly includes a flexible tube and an annular extrusion stage. A recovery annular cavity is opened inside the working cylinder, and a recovery groove is opened in the middle of the working cylinder. A movable ring is slidably connected inside the recovery annular cavity. Several flexible tubes are arranged in an annular array on the lower side of the movable ring. An annular extrusion stage is set at the bottom of the recovery annular cavity. The flexible tubes are movably connected to the annular extrusion stage. A connecting groove is opened in an annular shape on the movable ring, and the connecting groove is connected to the flexible tubes accordingly.

[0011] The bottom of the recycling tank is provided with several elastic limiting blocks, which are located on the extension line of the annular extrusion table, and both ends of the elastic limiting blocks are inserted into the inner wall of the recycling tank.

[0012] The elastic limiting block is movably connected to the hose, and the gap between the hoses allows air to pass through.

[0013] After the entire hose enters the recovery annular cavity, the hose deviates from the outer ring of the picosecond fiber laser, whether it is for air intake or exhaust.

[0014] As the connecting column moves downward, it pulls the picosecond fiber laser upward via a pull rope.

[0015] As a preferred technical solution for a laser cosmetic treatment device, a control component is provided on the upper side of the movable ring. The control component includes a connecting column, a limiting slide rod, a second movable annular seat, a lead screw, an annular movable cavity, and a servo motor. An annular movable cavity is opened at the top of the working cylinder. An air pressure balance hole is opened inside the annular movable cavity. The second movable annular seat is slidably connected inside the annular movable cavity. The annular movable cavity is provided with a limiting slide rod, which is movably sleeved with the second movable annular seat. The annular movable cavity is rotatably connected with a lead screw, which is threadedly connected to the second movable annular seat. A servo motor is provided at the top of the working cylinder. The power output end of the servo motor is fixedly connected to the top of the lead screw. The second movable annular seat is fixedly connected to the movable ring through the connecting column.

[0016] The elastic spring plate compresses the two adjacent structural rings away from each other, while the elastic rope pulls the two adjacent structural rings closer together, thus keeping the hose bent, but it will be forcibly straightened when the hose retracts into the retraction annular cavity.

[0017] As a preferred technical solution for a laser cosmetic treatment device, the shape maintenance component includes structural rings and elastic cords. The inner ring of the flexible tube is provided with several structural rings spaced apart, and adjacent structural rings are connected by elastic cords.

[0018] The shape-maintaining component also includes a side plate, a connecting bolt, a connecting plate, and a spring plate. The end of the structural ring away from the elastic rope is provided with a side plate, and the spring plate is located between two adjacent structural rings. Each end of the spring plate is connected to a connecting bolt through a connecting plate, and the connecting bolt is inserted into the side plate.

[0019] The laser assembly includes a picosecond fiber laser, a central column, a limiting platform, and a limiting ring. The picosecond fiber laser is movably inserted into the middle of the recovery tank. The central column is set at the top of the picosecond fiber laser. Several limiting platforms are set on the inner peripheral wall of the top of the recovery tank. A spring is sleeved on the outside of the central column. A limiting ring is set in the middle of the central column. The bottom end of the spring abuts against the limiting ring, and the top end of the spring abuts against the limiting platform. One end of the pull rope located inside the recovery tank is connected to the top of the picosecond fiber laser through a connecting bracket.

[0020] Two symmetrically distributed communication channels are provided on the working cylinder. The communication channels connect the recovery tank and the annular movable cavity. A steering wheel is rotatably connected to the communication channel. The pull rope passes through the communication channel and is movably connected to the steering wheel. One end of the pull rope is connected to the top of the picosecond fiber laser through a connecting bracket, and the other end of the pull rope is connected to the connecting column.

[0021] When the movable ring seat 2 and the connecting column move upward, the connecting column moves upward with one end of the pull rope, while the other end of the pull rope connected to the picosecond fiber laser can continue to move downward. Under the compression of the spring, the picosecond fiber laser moves downward.

[0022] The beneficial effects of the laser cosmetic treatment device of the present invention are as follows: by using the cold air deflection component and the shape maintenance component, dynamic control of cold air and pre-anesthesia are achieved, reducing the pain caused by laser burns; the airflow can form a ring around the laser to avoid interfering with the laser path; at the same time, the exhaust fan reverses to generate suction to absorb the smoke, improving the treatment comfort, safety and environmental cleanliness. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the laser treatment component of the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified schematic diagram of part A in the middle section;

[0027] Figure 4 For the present invention Figure 2 A partially enlarged structural diagram of section B;

[0028] Figure 5 This is a front structural diagram of the connecting groove of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the air-cooling component of the present invention.

[0030] Reference numerals: 100, Treatment device; 101, Housing; 102, Gas supply pipe; 200, Moving frame; 201, Rotating frame one; 202, Connecting frame one; 203, Connecting frame two; 204, Rotating frame two; 205, Handle arm; 300, Laser treatment component; 301, Working cylinder; 302, Circular recovery cavity; 303, Recovery groove; 304, Limiting ring; 305, Connecting rod; 306, Picosecond fiber laser; 307, Flexible tube; 308, Circular compression table; 309, Elastic limiting block; 310, Connecting groove; 311, Connecting column; 312, Movable ring; 313, Connecting bracket; 314; 315. 316. Center column; 317. Limiting platform; 318. Lead screw; 319. Movable annular seat II; 320. Servo motor; 321. Annular movable cavity; 322. Limiting slide bar; 323. Limiting ring; 324. Pull rope; 325. Communication channel; 400. Steering wheel; 401. Shape maintenance component; 402. Structural ring; 403. Elastic rope; 404. Side plate; 405. Connecting bolt; 406. Connecting plate; 507. Spring plate; 500. Air conditioning unit; 501. Compressor; 502. Condenser; 503. Dryer filter; 504. Expansion valve; 505. Air conditioning box; 506. Evaporator; 507. Exhaust fan. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used 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 one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] like Figures 1-6 As shown, the present invention proposes a laser cosmetic treatment device, including a treatment instrument 100, the treatment instrument 100 including a housing 101, and a movable frame 200 provided at the top of the housing 101;

[0036] The mobile frame 200 includes a rotating frame 201, a connecting frame 202, a connecting frame 203, a rotating frame 204, and a handle arm 205. The rotating frame 201 is rotatably connected to the top of the housing 101. The rotating frame 201 is L-shaped. The top of the rotating frame 201 is rotatably connected to the connecting frame 202. The connecting frame 202 is U-shaped. The connecting frame 203 is Z-shaped. The connecting frame 202 and the connecting frame 203 are rotatably connected. The end of the connecting frame 203 away from the connecting frame 202 is rotatably connected to the rotating frame 204. The rotating frame 204 is connected to the laser treatment component 300 through the handle arm 205.

[0037] The laser therapy device 300 includes a working cylinder 301, a laser component and a cold air deflection component. The handle arm 205 is fixedly connected to the working cylinder 301, and the laser component and the cold air deflection component are installed inside the working cylinder 301.

[0038] The housing 101 is equipped with a display screen and a U-shaped handle.

[0039] The laser treatment component 300 also includes a limiting ring 304 and a connecting rod 305. The working cylinder 301 is provided with a connecting rod 305 at the end away from the handle arm 205, and the connecting rod 305 is fixedly connected to the limiting ring 304.

[0040] The cold gas deflection assembly is located on the outer ring of the laser assembly. The cold gas deflection assembly includes a flexible tube 307 and an annular extrusion stage 308. The working cylinder 301 has a recovery annular cavity 302 inside, and a recovery groove 303 is opened in the middle of the working cylinder 301. A movable ring 312 is slidably connected in the recovery annular cavity 302. Several flexible tubes 307 are arranged in annular array on the lower side of the movable ring 312. An annular extrusion stage 308 is provided at the bottom of the recovery annular cavity 302. The flexible tubes 307 are movably connected to the annular extrusion stage 308. A connecting groove 310 is opened in annular on the movable ring 312, and the connecting groove 310 is correspondingly connected to the flexible tubes 307.

[0041] The working cylinder 301 is connected to the gas supply pipe 102, the recovery annular cavity 302 is connected to the gas supply pipe 102, and the gas supply pipe 102 is connected to the cold air generating component 500.

[0042] The bottom of the recycling tank 303 is provided with several elastic limiting blocks 309. The elastic limiting blocks 309 are located on the extension line of the annular extrusion table 308, and both ends of the elastic limiting blocks 309 are inserted into the inner wall of the recycling tank 303.

[0043] The elastic limiting block 309 is movably connected to the hose 307, and the gap between the hoses 307 allows air to pass through.

[0044] After the entire hose 307 enters the recovery annular cavity 302, the hose 307 deviates from the outer ring of the picosecond fiber laser 306, whether it is for air intake or exhaust.

[0045] When the connecting column 311 moves downward, it pulls the picosecond fiber laser 306 upward through the pull rope 323.

[0046] A control component is provided on the upper side of the movable ring 312. The control component includes a connecting post 311, a limiting slide rod 321, a movable annular seat 318, a lead screw 317, an annular movable cavity 320, and a servo motor 319. The top of the working cylinder 301 has an annular movable cavity 320. An air pressure balance hole is provided inside the annular movable cavity 320. The movable annular seat 318 is slidably connected inside the annular movable cavity 320. The annular movable cavity 320 is provided with a limiting slide rod 321. The limiting slide rod 321 is movably sleeved with the movable annular seat 318. The annular movable cavity 320 is rotatably connected with the lead screw 317. The lead screw 317 is threadedly connected to the movable annular seat 318. The top of the working cylinder 301 is provided with a servo motor 319. The power output end of the servo motor 319 is fixedly connected to the top of the lead screw 317. The movable annular seat 318 is fixedly connected to the movable ring 312 through the connecting post 311.

[0047] The elastic compression of the spring plate 406 pushes the two adjacent structural rings 401 away, while the elastic rope 402 pulls the two adjacent structural rings 401 closer to each other, thus keeping the hose 307 bent, but it will be forcibly straightened when the hose 307 retracts into the recovery annular cavity 302.

[0048] The shape-maintaining component 400 includes a structural ring 401 and an elastic rope 402. The inner ring of the hose 307 is provided with several structural rings 401 at intervals, and two adjacent structural rings 401 are connected by an elastic rope 402.

[0049] The shape-maintaining component 400 also includes a side plate 403, a connecting bolt 404, a connecting plate 405, and a spring plate 406. The end of the structural ring 401 away from the elastic rope 402 is provided with a side plate 403. The spring plate 406 is located between two adjacent structural rings 401. Both ends of the spring plate 406 are connected to a connecting bolt 404 through a connecting plate 405. The connecting bolt 404 is inserted into the side plate 403.

[0050] The laser assembly includes a picosecond fiber laser 306, a central column 315, a limiting platform 316, and a limiting ring 322. The picosecond fiber laser 306 is movably inserted into the middle of the recovery tank 303. The central column 315 is set at the top of the picosecond fiber laser 306. Several limiting platforms 316 are set on the inner peripheral wall of the top of the recovery tank 303. A spring is sleeved on the outer side of the central column 315. A limiting ring 322 is set in the middle of the central column 315. The bottom end of the spring abuts against the limiting ring 322. The top end of the spring abuts against the limiting platform 316. One end of the pull rope 323 located inside the recovery tank 303 is connected to the top of the picosecond fiber laser 306 through a connecting bracket 313.

[0051] Two symmetrically distributed communication channels 324 are provided on the working cylinder 301. The communication channels 324 connect the recovery tank 303 and the annular movable cavity 320. A steering wheel 325 is rotatably connected to the communication channel 324. The pull rope 323 passes through the communication channel 324 and is movably connected to the steering wheel 325. One end of the pull rope 323 is connected to the top of the picosecond fiber laser 306 through the connecting bracket 313, and the other end of the pull rope 323 is connected to the connecting post 311.

[0052] When the movable annular seat 318 and the connecting column 311 move upward, the connecting column 311 moves upward with one end of the pull rope 323, and the other end of the pull rope 323 connected to the picosecond fiber laser 306 can continue to move downward. Under the compression of the spring, the picosecond fiber laser 306 moves downward.

[0053] The housing 101 houses a cooling air generating assembly 500, which includes a compressor 501, a condenser 502, a filter dryer 503, an expansion valve 504, a cooling air box 505, an evaporator 506, and an exhaust fan 507. The evaporator 506 is housed inside the cooling air box 505, and the exhaust fan 507 is located on one side of the cooling air box 505. The other side of the cooling air box 505 is connected to the gas supply pipe 102. One side of the evaporator 506 is connected to the compressor 501 via a pipe, and the other side of the evaporator 506 is connected to the expansion valve 504 via a pipe. The expansion valve 504 is connected to the filter dryer 503 via a pipe, and the filter dryer 503 is connected to the condenser 502 via a pipe. The end of the compressor 501 furthest from the filter dryer 503 is connected to the compressor 501 via a pipe, and the lower side of the cooling air box 505 is connected to the gas supply pipe 102.

[0054] The specific implementation method is as follows: the exhaust fan 507 and the compressor 501 are started, the air in the inner cavity of the cold air box 505 is cooled down and the air temperature is lower than minus 30 degrees Celsius to form cold air. The exhaust fan 507 pumps the cold air into the air supply pipe 102. The cold air reaches the recovery annular cavity 302 through the air supply pipe 102. The cold air enters the hose 307 through the connecting groove 310 on the movable ring 312 and is discharged from the opening of the hose 307. The cold air blown directly onto the skin can play a role in cooling and anesthesia, reducing the pain of laser burning the skin.

[0055] The annular extrusion stage 308 directs the hose 307 toward the center of the working cylinder 301. The more the hose 307 extends out of the retraction annular cavity 302, the closer the opening of the hose 307 is to the center, and the more the cold air is concentrated directly below the picosecond fiber laser 306 for pre-anesthesia. That is, the skin is anesthetized before the picosecond fiber laser 306 starts working to reduce pain.

[0056] Subsequently, the servo motor 319 starts, controlling the lead screw 317 to rotate. The lead screw 317 manipulates the movable annular seat 318 to move upward. The movable annular seat 318 carries the movable ring 312 upward through the connecting column 311. The movable ring 312 carries the flexible tube 307 upward. As the flexible tube 307 moves upward, the deflection position of the flexible tube 307 continuously moves downward, and the bottom opening of the flexible tube 307 gradually disperses outward. If it continues to supply cold air, the cold air will become more and more dispersed, eventually forming a ring of airflow around the picosecond fiber laser 306 to avoid interfering with the operation of the picosecond fiber laser 306. The picosecond fiber laser 306 generates picosecond laser to burn the area of ​​the skin that needs treatment.

[0057] The exhaust fan 507 reverses to generate suction, which is then applied through the gas supply pipe 102 and the hose 307 to absorb the fumes generated during treatment.

[0058] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser cosmetic treatment device, characterized in that: The utility model provides a kind of treatment instrument (100), treatment instrument (100) includes shell (101), the top of the shell (101) is provided with moving frame (200); Moving frame (200) includes rotating frame one (201), connecting frame one (202), connecting frame two (203), rotating frame two (204) and handle arm (205), the top of the shell (101) is rotatably connected with rotating frame one (201), the rotating frame one (201) is L-shaped, the top of rotating frame one (201) is rotatably connected with connecting frame one (202), connecting frame one (202) is U-shaped, connecting frame two (203) is Z-shaped, the connecting frame one (202) is rotatably connected with connecting frame two (203), connecting frame two (203) is rotatably connected with rotating frame two (204) away from one end of connecting frame one (202), and rotating frame two (204) is connected with laser treatment piece (300) by handle arm (205); Laser treatment piece (300) includes working cylinder (301), laser assembly and cold gas deflection assembly, handle arm (205) is fixedly connected with working cylinder (301), and laser assembly and cold gas deflection assembly are arranged in working cylinder (301).

2. A laser cosmetic treatment device according to claim 1, characterized in that: The shell (101) is provided with a display screen and a U-shaped pull handle.

3. A laser cosmetic treatment device according to claim 1, characterized in that: Laser treatment piece (300) further includes limiting ring (304) and connecting rod (305), and the end, away from handle arm (205), of working cylinder (301) is provided with connecting rod (305), and connecting rod (305) is fixedly connected with limiting ring (304).

4. The laser cosmetic treatment device of claim 1, wherein: The cold gas deflection assembly is located outside the laser assembly, and the cold gas deflection assembly includes a hose (307) and an annular extrusion table (308). The working cylinder (301) has a recycling annular cavity (302) formed therein, and a recycling groove (303) is formed in the middle of the working cylinder (301). An active ring (312) is slidably connected in the recycling annular cavity (302). A plurality of hoses (307) are annularly arranged on the lower side of the active ring (312). An annular extrusion table (308) is arranged at the bottom of the recycling annular cavity (302). The hoses (307) are movably connected with the annular extrusion table (308). A connecting groove (310) is annularly formed in the active ring (312), and the connecting groove (310) is connected with the hoses (307). The working cylinder (301) is connected with a gas pipeline (102), the recycling annular cavity (302) is connected with the gas pipeline (102), and the gas pipeline (102) is connected with a cold gas generating assembly (500).

5. A laser cosmetic treatment device according to claim 4, characterized in that: A plurality of elastic limiting blocks (309) are arranged at the bottom of the recycling groove (303), and the elastic limiting blocks (309) are located on the extension line of the annular extrusion table (308). The two ends of the elastic limiting blocks (309) are inserted into the inner wall of the recycling groove (303).

6. A laser cosmetic treatment device according to claim 4, characterized in that: The upper side of the movable ring (312) is provided with a control assembly, the control assembly includes a connecting column (311), a limiting slide rod (321), a movable ring seat two (318), a lead screw (317), a movable ring cavity (320) and a servo motor (319), the top of the working cylinder (301) is provided with a movable ring cavity (320), the movable ring cavity (320) is slidably connected with the movable ring seat two (318), the movable ring cavity (320) is provided with the limiting slide rod (321), the limiting slide rod (321) is movably sleeved with the movable ring seat two (318), the movable ring cavity (320) is rotatably connected with the lead screw (317), the lead screw (317) is threadedly connected with the movable ring seat two (318), the top of the working cylinder (301) is provided with the servo motor (319), the power output end of the servo motor (319) is fixedly connected with the top of the lead screw (317), and the movable ring seat two (318) is fixedly connected with the movable ring (312) through the connecting column (311).

7. The laser cosmetic treatment device of claim 1, wherein: The shape maintaining member (400) comprises a structure ring (401) and an elastic rope (402), a plurality of structure rings (401) are arranged at intervals in the inner ring of the hose (307), and adjacent two structure rings (401) are connected through the elastic rope (402).

8. A laser cosmetic treatment device according to claim 7, characterized in that: The shape maintaining member (400) further comprises a side plate (403), a connecting bolt (404), a connecting plate (405) and a spring plate (406), one end of the structure ring (401) away from the elastic rope (402) is provided with the side plate (403), the spring plate (406) is located between two adjacent structure rings (401), and the two ends of the spring plate (406) are connected with the connecting bolt (404) through the connecting plate (405) respectively, and the connecting bolt (404) is inserted with the side plate (403).

9. A laser cosmetic treatment device according to claim 6, characterized in that: The laser assembly comprises a picosecond fiber laser (306), a center column (315), a limiting table (316) and a limiting ring (322), the middle part of the recovery groove (303) is movably inserted with the picosecond fiber laser (306), the top end of the picosecond fiber laser (306) is provided with the center column (315), the inner circumferential wall of the top of the recovery groove (303) is provided with a plurality of limiting tables (316), the outer side of the center column (315) is sleeved with a spring, the middle part of the center column (315) is provided with the limiting ring (322), the bottom end of the spring abuts against the limiting ring (322), and the top end of the spring abuts against the limiting table (316).

10. A laser cosmetic treatment device according to claim 9, characterized in that: Two symmetrical communication channels (324) are formed in the working cylinder (301), the communication channels (324) are communicated with the recovery groove (303) and the movable ring cavity (320), the communication channels (324) are rotatably connected with the steering wheel (325), the pull rope (323) passes through the communication channels (324), the pull rope (323) is movably connected with the steering wheel (325), one end of the pull rope (323) is connected with the top end of the picosecond fiber laser (306) through the connecting support (313), and the other end of the pull rope (323) is connected with the connecting column (311).

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