A multifunctional 3D skin imager

Abstract

The present invention relates to the technical field of skin imaging devices, and proposes a multifunctional 3D skin imaging device, including an installation box, a support table is fixedly connected to the top of the installation box, a light source irradiation device is arranged at one end of the support table, a central axis is rotatably connected to one end of the inner side of the installation box, a driving mechanism is arranged at the bottom end of the central axis, a rotating seat is fixedly connected to the top end of the central axis, an arc guide rail is fixedly connected to the top of the support table, the rotating seat is slidably connected to the arc guide rail, an imaging device is arranged at the top of the rotating seat, the imaging device includes a movable frame, a slide rail slidably connected to the movable frame is fixedly connected to the top of the rotating seat, an imaging lens is fixedly connected to the top of the movable frame, and a linkage mechanism is arranged at one end of the rotating seat. The imaging lens of the present invention can perform multi-angle imaging of human facial skin, and can receive reflected light in different directions at the same angle as the human face, and finally generate a 3D image, which can greatly improve the accuracy of skin analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of skin imagers, and in particular to a multifunctional 3D skin imager. Background Art

[0002] Skin analysis and skin classification technology have always been the basic technology for personalized skin care. At first, skin types were simply divided into dry, neutral, oily and mixed types through naked eye observation. However, this classification method is too rough and cannot provide targeted solutions to skin problems. At present, skin analysis is mainly carried out through skin imagers, which mainly collect images of the skin under specific lighting conditions and use image analysis to quantitatively give skin image indicators to reflect the skin condition.

[0003] For example, the Chinese patent publication number CN219250144U discloses "a desktop skin detector, including a base support, an outer shell is installed on the upper part of the base support, the outer shell has an opening, and a camera is installed inside the outer shell, the acquisition direction of the camera corresponds to the opening, the camera is connected to a control main board, and the control main board is used to connect to a smart display; a light guide is installed inside the outer shell, the installation angle of the light guide corresponds to the position of the camera, and a light board is installed at the very end of the light guide."

[0004] This type of patent has some technical defects in the implementation process; first, this type of patent mainly uses a camera to collect human facial images through the opening of the outer shell. Since the angle of the camera is fixed, all the reflected light received by the camera during identification is mainly the front face of the human face, while the reflected light from other areas of the face is rarely received by the camera, which results in the inability to completely and accurately image the facial skin, thereby affecting the final skin analysis results; second, the distance between the imaging camera and the face of this patent cannot be adjusted, so that the imaging light path received by the camera is fixed, and the final image is flat. Since the human face is a three-dimensional structure, the camera cannot image a 3D stereoscopic image, which will also affect the final skin analysis results. In view of this, the present invention proposes a multifunctional 3D skin imager. Summary of the invention

[0005] The present invention provides a multifunctional 3D skin imager, which solves the problem in the prior art that comprehensive skin imaging of the human face cannot be performed.

[0006] The technical solution of the present invention is as follows: A multifunctional 3D skin imager comprises an installation box, the top of the installation box is fixedly connected to a support table, one end of the support table is provided with two light source irradiation devices for emitting light, one end of the inner side of the installation box is rotatably connected to a central axis, the bottom end of the central axis is provided with a driving mechanism for driving the central axis to reciprocate, the top of the central axis is fixedly connected to a rotating seat, the top of the support table is fixedly connected to an arc guide rail, the rotating seat is slidably connected to the arc guide rail, the top of the rotating seat is provided with an imaging device, the imaging device comprises a movable frame, the top of the rotating seat is fixedly connected to a slide rail slidably connected to the movable frame, the top of the movable frame is fixedly connected to an imaging lens, and one end of the rotating seat is provided with a linkage mechanism for driving the movable frame to intermittently slide along the slide rail by cooperating with the rotation of the central axis.

[0007] Preferably, the support platform is a semicircular structure, the top of the support platform is fixedly connected to a scale plate arranged concentrically with the support platform, and one end of the rotating seat is slidably connected to the top wall of the scale plate.

[0008] Preferably, the linkage mechanism includes two first fixed seats arranged in parallel, both of which are fixedly connected to one end of the rotating seat, one side of one of the first fixed seats is rotatably connected to a screw rod, the screw rod is threadedly connected to the movable frame, the other end of the rotating seat is fixedly connected to the second fixed seat, one side of the second fixed seat is rotatably connected to a walking gear ring, the outer edge of the top of the support platform is fixedly connected to an arc-shaped toothed plate, the walking gear ring is meshed with the arc-shaped toothed plate, and the second fixed seat is rotatably connected to a rotating shaft that passes through the second fixed seat, the rotating shaft and the walking gear ring are arranged concentrically, one end of the rotating shaft is provided with a connecting assembly for connecting to the screw rod, and the other end of the rotating shaft is provided with a transmission member that drives the rotating shaft to rotate unidirectionally by cooperating with the rotation of the walking gear ring.

[0009] Preferably, the transmission member includes a ratchet, which is fixedly connected to one end of the rotating shaft, and a plurality of ratchets are rotatably connected to the outer side of the traveling gear ring, and the plurality of ratchets are distributed at equal angles around the traveling gear ring, and the plurality of ratchets are respectively slidably matched with tooth grooves at corresponding positions of the ratchet.

[0010] Preferably, the connecting assembly includes an elastic shaft, one end of the elastic shaft is movably connected to the rotating shaft, the other end of the elastic shaft is fixedly connected to the first docking seat, one end of the screw rod is fixedly connected to the second docking seat that slides with the first docking seat, and one end of the elastic shaft is provided with a pushing piece that drives the first docking seat to disengage from the second docking seat through manual operation.

[0011] Preferably, the elastic shaft includes an insertion shaft, one end of the rotating shaft is provided with a slot that slides with the insertion shaft, the outer side of the insertion shaft is fixedly connected to a limit bar, the limit bar is slidably connected to the inner wall of the rotating shaft, and a spring is sleeved on the inner side of the slot, one end of the spring is in contact with the inside of the slot, and the other end of the spring is in contact with the insertion shaft.

[0012] Preferably, a limiting groove matching the limiting strip is formed on the inner wall of the slot, and the limiting strip is slidably matched with the limiting groove.

[0013] Preferably, the pushing member includes a movable seat, the top end of the movable seat is rotatably connected to a guide sleeve that passes through the movable seat, the guide sleeve is fixedly connected to the outside of the plug-in shaft, the bottom end of the second fixed seat is fixedly connected to a guide rod arranged parallel to the rotating shaft, one end of the movable seat is slidably connected to the rotating shaft, and the middle part of the movable seat is fixedly connected to a handle bar.

[0014] Preferably, a rotating part is provided at one end of the screw rod, and the rotating part includes a connecting shaft, one end of the connecting shaft is fixedly connected to the screw rod, and the other end of the connecting shaft is rotatably connected to the corresponding first fixed seat, a stopper is fixedly connected to the middle part of the connecting shaft, and a torsion spring is sleeved on the outer side of the connecting shaft, one end of the torsion spring is welded to the stopper, and the other end of the torsion spring is welded to the first fixed seat.

[0015] Preferably, the driving mechanism includes a motor, which is fixedly mounted on the inner side of the mounting box, the output shaft of the motor is fixedly connected to the eccentric wheel, the outer edge of the eccentric wheel is rotatably connected to a connecting rod, the end of the connecting rod away from the eccentric wheel is rotatably connected to a rotating rod, and the end of the rotating rod away from the connecting rod is fixedly connected to the center shaft.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. During operation, the person to be tested moves his face between two light source irradiation devices and keeps the posture unchanged, then starts the motor to drive the eccentric wheel to rotate, so that the connecting rod drives the rotating rod to swing back and forth, which makes the central axis rotate back and forth, and the rotating seat slides back and forth along the arc guide rail, so that the imaging lens follows the rotating seat to rotate circumferentially around the arc guide rail, and the imaging lens repeatedly adjusts the angle to receive light from different angles of the face, so that the imaging lens can perform multi-angle imaging of the human facial skin, which is conducive to improving the accuracy of facial skin analysis;

[0018] 2. During the reciprocating sliding of the rotating seat along the arc-shaped guide rail, the walking gear ring will reciprocate along the arc-shaped tooth plate. When the arc-shaped tooth plate rotates counterclockwise, the pawl on the outer edge of the arc-shaped tooth plate will drive the ratchet wheel to rotate, which makes the rotating shaft rotate synchronously, and the rotating shaft drives the lead screw to rotate through the connecting assembly, so that the movable frame and the lead screw rotate relative to each other, so that the movable frame slides along the slide rail; when the arc-shaped tooth plate rotates clockwise, the rotating shaft stops rotating, and the lead screw stops rotating. In this way, the lead screw can realize periodic rotation, and then the movable frame intermittently slides along the slide rail with the same displacement, so that the imaging lens automatically adjusts the distance from the human face after a cycle of reciprocating circumferential activity, so that the imaging lens can receive reflected light in different directions at the same angle as the human face, and finally generate a 3D image, which can greatly improve the accuracy of skin analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 A schematic diagram of the structure of a multifunctional 3D skin imager of the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of a multifunctional 3D skin imager of the present invention Figure 2 ;

[0022] Figure 3 is a schematic structural diagram of an imaging device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the driving mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the linkage mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the connection assembly of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the elastic shaft of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the push member of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the rotating member of the present invention;

[0029] Fig.10 It is a schematic diagram of receiving reflected light from different directions at different distances between the imaging lens of the present invention and the human face.

[0030] In the figure: 1, installation box; 2, support table; 3, central axis; 4, rotating seat; 5, imaging device; 51, movable frame; 52, slide rail; 53, imaging lens; 54, linkage mechanism; 541, first fixed seat; 542, lead screw; 543, walking gear ring; 544, arc gear plate; 545, rotating shaft; 546, ratchet; 547, pawl; 548, connecting assembly; 5481, elastic shaft; 54811, slot; 54812, plug shaft; 54813, limit strip; 54814, spring; 54 815, limit groove; 5482, first docking seat; 5483, second docking seat; 5484, push piece; 54841, movable seat; 54842, guide rod; 54843, guide sleeve; 54844, handle; 549, second fixed seat; 540, rotating member; 5401, connecting shaft; 5402, stopper; 5403, torsion spring; 6, driving mechanism; 61, motor; 62, eccentric wheel; 63, connecting rod; 64, rotating rod; 7, light source irradiation device; 8, arc guide rail; 9, dial. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] Reference Figure 1-5 A multifunctional 3D skin imager comprises an installation box 1, the top of the installation box 1 is fixedly connected to a support table 2, the support table 2 is a semicircular structure, one end of the support table 2 is provided with two light source irradiation devices 7 for emitting light, one end of the inner side of the installation box 1 is rotatably connected to a central axis 3, the bottom end of the central axis 3 is provided with a driving mechanism 6 for driving the central axis 3 to reciprocate, the top of the central axis 3 is fixedly connected to a rotating seat 4, the top of the support table 2 is fixedly connected to a dial 9 arranged concentrically with the support table 2, one end of the rotating seat 4 is connected to the dial 9 The top wall is slidably connected, and the dial 9 is used to measure the angle of the rotating seat 4. The top of the support platform 2 is fixedly connected with an arc guide rail 8, and the rotating seat 4 is slidably connected to the arc guide rail 8. An imaging device 5 is arranged on the top of the rotating seat 4, and the imaging device 5 includes a movable frame 51. The top of the rotating seat 4 is fixedly connected with a slide rail 52 slidably connected to the movable frame 51, and the top of the movable frame 51 is fixedly connected with an imaging lens 53. One end of the rotating seat 4 is provided with a linkage mechanism 54 which drives the movable frame 51 to slide intermittently along the slide rail 52 by cooperating with the rotation of the central axis 3.

[0034] The central axis 3 is driven to rotate back and forth through the driving mechanism 6, which makes the rotating seat 4 slide back and forth along the arc guide rail 8, so that the imaging lens 53 follows the rotating seat 4 to rotate circumferentially around the arc guide rail 8, and the imaging lens 53 repeatedly adjusts its angle to receive light from different angles of the face, so that the imaging lens 53 can perform multi-angle imaging of the human facial skin, which is beneficial to improving the accuracy of facial skin analysis.

[0035] The driving mechanism 6 includes a motor 61, which is fixedly installed on the inner side of the mounting box 1. The output shaft of the motor 61 is fixedly connected to the eccentric wheel 62. The outer edge of the eccentric wheel 62 is rotatably connected to a connecting rod 63. The end of the connecting rod 63 away from the eccentric wheel 62 is rotatably connected to a rotating rod 64. The end of the rotating rod 64 away from the connecting rod 63 is fixedly connected to the central axis 3.

[0036] The linkage mechanism 54 includes two first fixed seats 541 arranged in parallel, and the two first fixed seats 541 are fixedly connected to one end of the rotating seat 4. One side of one of the first fixed seats 541 is rotatably connected to a screw rod 542, and the screw rod 542 is threadedly connected to the movable frame 51. The other end of the rotating seat 4 is fixedly connected to a second fixed seat 549, and one side of the second fixed seat 549 is rotatably connected to a travel gear ring 543. The outer edge of the top of the support platform 2 is fixedly connected to an arc-shaped toothed plate 544, and the travel gear ring 543 is meshed with the arc-shaped toothed plate 544. The second fixed seat 549 is rotatably connected to a travel gear ring 543 that penetrates the second fixed seat 549. The rotating shaft 545 is concentrically arranged with the traveling gear ring 543, one end of the rotating shaft 545 is provided with a connecting assembly 548 for connecting with the screw rod 542, the other end of the rotating shaft 545 is provided with a transmission member for driving the rotating shaft 545 to rotate in one direction by cooperating with the rotation of the traveling gear ring 543, the transmission member includes a ratchet 546, the ratchet 546 is fixedly connected to one end of the rotating shaft 545, the outer side of the traveling gear ring 543 is rotatably connected with a plurality of ratchet pawls 547, the plurality of ratchet pawls 547 are distributed at equal angles around the traveling gear ring 543, and the plurality of ratchet pawls 547 are respectively slidably matched with the tooth grooves at the corresponding positions of the ratchet 546.

[0037] Working principle: During operation, the person to be tested moves his face between the two light source irradiation devices 7 and keeps the posture unchanged, then starts the motor 61 to drive the eccentric wheel 62 to rotate, so that the connecting rod 63 drives the rotating rod 64 to swing back and forth, which makes the central axis 3 rotate back and forth, and also makes the rotating seat 4 slide back and forth along the arc guide rail 8, which makes the imaging lens 53 follow the rotating seat 4 to rotate around the arc guide rail 8, and also makes the imaging lens 53 repeatedly adjust the angle to receive light at different angles of the face, so that the imaging lens 53 can perform multi-angle imaging of the human facial skin;

[0038] When the rotating seat 4 slides back and forth along the arc guide rail 8, the running gear ring 543 will reciprocate along the arc tooth plate 544. When the arc tooth plate 544 rotates counterclockwise, the pawl 547 on the outer edge of the arc tooth plate 544 will drive the ratchet 546 to rotate, which makes the rotating shaft 545 rotate synchronously, and also makes the rotating shaft 545 drive the screw rod 542 to rotate through the connecting assembly 548, so that the movable frame 51 and the screw rod 542 rotate relative to each other, so that the movable frame 51 slides along the slide rail 52; when the arc tooth plate 54 When the rotating shaft 545 rotates clockwise, the rotating shaft 545 stops rotating, and the screw rod 542 stops rotating. In this way, the screw rod 542 can realize periodic rotation, so that the movable frame 51 intermittently slides along the slide rail 52 with the same displacement, so that the imaging lens 53 automatically adjusts the distance from the human face after a cycle of reciprocating circumferential movement, and the imaging lens 53 can receive reflected light from different directions at the same angle to the human face, and finally generate a 3D image, which can greatly improve the accuracy of skin analysis.

[0039] Embodiment 2:

[0040] In Example 1, after the work is completed, the imaging lens 53 needs to be restored to the initial position to facilitate the next work. Since the rotating shaft 545 connected to the screw rod 542 can only rotate in one direction, and the imaging lens 53 needs to be restored to the initial position, the screw rod 542 needs to rotate in the opposite direction, so this problem needs to be solved;

[0041] Reference Figure 6-10 As another preferred embodiment of the present invention, the difference from Embodiment 1 lies in that the connecting assembly 548 comprises an elastic shaft 5481, one end of the elastic shaft 5481 is movably connected to the rotating shaft 545, the other end of the elastic shaft 5481 is fixedly connected to a first docking seat 5482, one end of the screw rod 542 is fixedly connected to a second docking seat 5483 which is slidably matched with the first docking seat 5482, and one end of the elastic shaft 5481 is provided with a pushing piece 5484 which drives the first docking seat 5482 to disengage from the second docking seat 5483 by manual operation; the first docking seat 5482 and the second docking seat 5483 can keep synchronous rotation through the cooperation between the first docking seat 5482 and the second docking seat 5483, so that the elastic shaft 5481 and the screw rod 542 can keep synchronous rotation, thereby realizing stable transmission of power.

[0042] The elastic shaft 5481 includes an insertion shaft 54812, and a slot 54811 that slides with the insertion shaft 54812 is provided at one end of the rotating shaft 545. A limiting strip 54813 is fixedly connected to the outer side of the insertion shaft 54812, and the limiting strip 54813 is slidably connected to the inner wall of the rotating shaft 545. A spring 54814 is sleeved on the inner side of the slot 54811, and one end of the spring 54814 is in contact with the inside of the slot 54811, and the other end of the spring 54814 is in contact with the insertion shaft 54812. A limiting groove 54815 that matches the limiting strip 54813 is provided on the inner wall of the slot 54811, and the limiting strip 54813 slides with the limiting groove 54815. The limit strip 54813 can ensure that the insertion shaft 54812 still rotates synchronously with the rotating shaft 545 when it translates along the axial direction of the rotating shaft 545. The spring 54814 can make the first docking seat 5482 and the second docking seat 5483 in elastic contact, so that the first docking seat 5482 and the second docking seat 5483 can cooperate smoothly.

[0043] The push piece 5484 includes a movable seat 54841, the top of the movable seat 54841 is rotatably connected to a guide sleeve 54843 that penetrates the movable seat 54841, the guide sleeve 54843 is fixedly connected to the outer side of the plug shaft 54812, the bottom end of the second fixed seat 549 is fixedly connected to a guide rod 54842 that is arranged parallel to the rotating shaft 545, one end of the movable seat 54841 is slidably connected to the rotating shaft 545, the middle part of the movable seat 54841 is fixedly connected to a handle 54844, and the screw rod 54812 is fixedly connected to the screw rod 54813. A rotating member 540 is provided at one end of 42, and the rotating member 540 includes a connecting shaft 5401, one end of the connecting shaft 5401 is fixedly connected to the screw rod 542, and the other end of the connecting shaft 5401 is rotatably connected to the corresponding first fixed seat 541, a stopper 5402 is fixedly connected to the middle part of the connecting shaft 5401, and a torsion spring 5403 is sleeved on the outer side of the connecting shaft 5401, one end of the torsion spring 5403 is welded to the stopper 5402, and the other end of the torsion spring 5403 is welded to the first fixed seat 541.

[0044] Working principle: During operation, the person to be tested moves his face between the two light source irradiation devices 7 and keeps the posture unchanged, then starts the motor 61 to drive the eccentric wheel 62 to rotate, so that the connecting rod 63 drives the rotating rod 64 to swing back and forth, which makes the central axis 3 rotate back and forth, and also makes the rotating seat 4 slide back and forth along the arc guide rail 8, which makes the imaging lens 53 follow the rotating seat 4 to rotate around the arc guide rail 8, and also makes the imaging lens 53 repeatedly adjust the angle to receive light at different angles of the face, so that the imaging lens 53 can perform multi-angle imaging of the human facial skin;

[0045] When the rotating seat 4 slides back and forth along the arc guide rail 8, the walking gear ring 543 will reciprocate along the arc tooth plate 544. When the arc tooth plate 544 rotates counterclockwise, the pawl 547 on the outer edge of the arc tooth plate 544 will drive the ratchet 546 to rotate, which makes the rotating shaft 545 rotate synchronously, and also makes the rotating shaft 545 drive the screw rod 542 to rotate through the connecting assembly 548, so that the movable frame 51 and the screw rod 542 rotate relative to each other, so that the movable frame 51 slides along the slide rail 52; when the arc tooth plate 544 rotates clockwise, the rotating shaft 545 rotates synchronously, and the rotating shaft 545 drives the screw rod 542 to rotate via the connecting assembly 548, so that the movable frame 51 rotates relative to the screw rod 542, so that the movable frame 51 slides along the slide rail 52; when the arc tooth plate 544 rotates clockwise, the rotating shaft 545 rotates clockwise, and the rotating shaft 545 rotates clockwise. When the shaft 545 stops rotating, the screw rod 542 stops rotating. In this way, the screw rod 542 can realize periodic rotation. At this time, the connecting shaft 5401 rotates synchronously with the screw rod 542, so that the torsion spring 5403 is wound up and accumulates elastic potential energy, and then the movable frame 51 intermittently slides along the slide rail 52 with the same displacement. In this way, the imaging lens 53 automatically adjusts the distance from the human face after a cycle of reciprocating circumferential movement, and the imaging lens 53 can receive reflected light from different directions at the same angle to the human face, and finally generate a 3D image.

[0046] After the work is completed, the handle 54844 is manually operated to push the movable seat 54841 to slide along the guide rod 54842, so that the guide sleeve 54843 drives the plug shaft 54812 to slide into the interior of the rotating shaft 545. At this time, the spring 54814 is compressed to accumulate elastic potential energy, which can make the first docking seat 5482 disengage from the second docking seat 5483. At this time, the second docking seat 5483 is no longer restricted by the first docking seat 5482. At the same time, the torsion spring 5403 completely releases its elastic potential energy, which makes the connecting shaft 5401 drive the screw rod 542 to rotate in the opposite direction, so that the movable frame 51 slides in the opposite direction along the slide rail 52 and returns to its initial position, and then the imaging lens 53 returns to its initial longitudinal position, so as to facilitate the next normal operation.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional 3D skin imager, comprising a mounting box (1), the top of the mounting box (1) being fixedly connected to a support platform (2), one end of the support platform (2) being provided with two light source irradiation devices (7) for emitting light, characterized in that: One end of the inner side of the installation box (1) is rotatably connected to a central axis (3), the central axis (3) is provided with a driving mechanism (6) for driving the central axis (3) to reciprocate, the top of the central axis (3) is fixedly connected to a rotating seat (4), the top of the support platform (2) is fixedly connected to an arc guide rail (8), the rotating seat (4) is slidably connected to the arc guide rail (8), the top of the rotating seat (4) is provided with an imaging device (5), the imaging device (5) comprises a movable frame (51), the top of the rotating seat (4) is fixedly connected to a slide rail (52) slidably connected to the movable frame (51), the top of the movable frame (51) is fixedly connected to an imaging lens (53), and one end of the rotating seat (4) is provided with a linkage mechanism (54) for driving the movable frame (51) to intermittently slide along the slide rail (52) by cooperating with the rotation of the central axis (3); The linkage mechanism (54) comprises two first fixed seats (541) arranged in parallel, the two first fixed seats (541) are fixedly connected to one end of the rotating seat (4), one side of one of the first fixed seats (541) is rotatably connected to a screw rod (542), the screw rod (542) is threadedly connected to the movable frame (51), the other end of the rotating seat (4) is fixedly connected to a second fixed seat (549), one side of the second fixed seat (549) is rotatably connected to a travel gear ring (543), the outer edge of the top of the support platform (2) is fixedly connected to an arc-shaped toothed plate (544), the travel gear ring (543) is meshed with the arc-shaped toothed plate (544), the second fixed seat (549) is rotatably connected to a toothed plate that penetrates the second fixed seat (549), and the toothed plate (543) is meshed with the arc-shaped toothed plate (544). ) of a rotating shaft (545), the rotating shaft (545) being concentrically arranged with a traveling gear ring (543), one end of the rotating shaft (545) being provided with a connecting assembly (548) for connecting with a screw rod (542), the other end of the rotating shaft (545) being provided with a transmission member for driving the rotating shaft (545) to rotate in one direction by cooperating with the rotation of the traveling gear ring (543), the transmission member comprising a ratchet (546), the ratchet (546) being fixedly connected to one end of the rotating shaft (545), a plurality of ratchet pawls (547) being rotatably connected to the outer side of the traveling gear ring (543), the plurality of ratchet pawls (547) being distributed at equal angles around the traveling gear ring (543), and the plurality of ratchet pawls (547) respectively being slidably matched with tooth grooves at corresponding positions of the ratchet (546).

2. A multifunctional 3D skin imager according to claim 1, characterized in that: The support platform (2) is a semicircular structure, the top of the support platform (2) is fixedly connected to a scale plate (9) arranged concentrically with the support platform (2), and one end of the rotating seat (4) is slidably connected to the top wall of the scale plate (9).

3. The multifunctional 3D skin imager according to claim 1, characterized in that: The connecting assembly (548) includes an elastic shaft (5481), one end of which is movably connected to the rotating shaft (545), the other end of which is fixedly connected to a first docking seat (5482), one end of which is fixedly connected to a second docking seat (5483) which is slidably matched with the first docking seat (5482), and one end of which is provided with a pushing piece (5484) which is used to drive the first docking seat (5482) and the second docking seat (5483) to disengage through manual operation.

4. The multifunctional 3D skin imager according to claim 3, characterized in that: The elastic shaft (5481) includes an insertion shaft (54812), one end of the rotating shaft (545) is provided with a slot (54811) that slidably cooperates with the insertion shaft (54812), the outer side of the insertion shaft (54812) is fixedly connected to a limit strip (54813), the limit strip (54813) is slidably connected to the inner wall of the rotating shaft (545), the inner side of the slot (54811) is sleeved with a spring (54814), one end of the spring (54814) is in contact with the inside of the slot (54811), and the other end of the spring (54814) is in contact with the insertion shaft (54812).

5. The multifunctional 3D skin imager according to claim 4, characterized in that: The inner wall of the slot (54811) is provided with a limiting groove (54815) matching the limiting strip (54813), and the limiting strip (54813) is slidably matched with the limiting groove (54815).

6. The multifunctional 3D skin imager according to claim 5, characterized in that: The pushing member (5484) includes a movable seat (54841), the top end of the movable seat (54841) is rotatably connected to a guide sleeve (54843) that passes through the movable seat (54841), the guide sleeve (54843) is fixedly connected to the outer side of the plug shaft (54812), the bottom end of the second fixed seat (549) is fixedly connected to a guide rod (54842) that is arranged parallel to the rotating shaft (545), one end of the movable seat (54841) is slidably connected to the rotating shaft (545), and the middle part of the movable seat (54841) is fixedly connected to a handle bar (54844).

7. The multifunctional 3D skin imager according to claim 6, characterized in that: A rotating member (540) is provided at one end of the screw rod (542), and the rotating member (540) includes a connecting shaft (5401), one end of the connecting shaft (5401) is fixedly connected to the screw rod (542), and the other end of the connecting shaft (5401) is rotatably connected to the corresponding first fixed seat (541), a stopper (5402) is fixedly connected to the middle part of the connecting shaft (5401), and a torsion spring (5403) is sleeved on the outer side of the connecting shaft (5401), one end of the torsion spring (5403) is welded to the stopper (5402), and the other end of the torsion spring (5403) is welded to the first fixed seat (541).

8. The multifunctional 3D skin imager according to claim 7, characterized in that: The driving mechanism (6) comprises a motor (61), wherein the motor (61) is fixedly mounted on the inner side of the mounting box (1), wherein the output shaft of the motor (61) is fixedly connected to an eccentric wheel (62), wherein the outer edge of the eccentric wheel (62) is rotatably connected to a connecting rod (63), wherein one end of the connecting rod (63) away from the eccentric wheel (62) is rotatably connected to a rotating rod (64), and one end of the rotating rod (64) away from the connecting rod (63) is fixedly connected to the central shaft (3).

Images