阅读说明：本技术 一种伸缩式的口腔三维高精度扫描仪 (Telescopic three-dimensional high accuracy scanner in oral cavity ) 是由 渠昊隆 于 2021-01-05 设计创作，主要内容包括：本发明涉及三维制造相关领域,尤其是一种伸缩式的口腔三维高精度扫描仪,包括机体,所述机体外侧端壁上滑动连接的设有固定架,所述固定架上用于固定所述机体的固定装置,所述固定包括是固定架左右两侧端壁内开口向外和向下设有的调整腔,所述调整腔前后端壁之间转动连接的设有第一转动架,医护人员在使用该仪器前可将所述机体放置于病人面部,所述垫圈与病人面部贴合,可以在扫描前较稳定的安放在病人的面部,然后向口腔中探入摄像头,受到医护人员手抖或其他震动的影响较小,因此获得三维结构较为精准；摄像头在病人口腔内可自动转动,无需医护人员手动转动,建模效率高,耗费的时间短,降低了医护人员的劳动力消耗。(The invention relates to the related field of three-dimensional manufacturing, in particular to a telescopic oral cavity three-dimensional high-precision scanner which comprises a scanner body, wherein a fixed frame is arranged on the end wall of the outer side of the scanner body in a sliding connection manner, a fixing device for fixing the scanner body is arranged on the fixed frame, the fixing device comprises an adjusting cavity which is outwards opened and downwards arranged in the end walls of the left side and the right side of the fixed frame, a first rotating frame is arranged between the front end wall and the rear end wall of the adjusting cavity in a rotating connection manner, a medical worker can place the scanner body on the face of a patient before using the scanner, a gasket is attached to the face of the patient, the scanner body can be stably placed on the face of the patient before scanning, and then a camera is inserted into the oral cavity, so that the influence of hand shaking or; the camera can rotate automatically in the oral cavity of the patient, the medical staff is not needed to rotate manually, the modeling efficiency is high, the consumed time is short, and the labor consumption of the medical staff is reduced.)

1. The utility model provides a telescopic three-dimensional high accuracy scanner in oral cavity, includes the organism, its characterized in that: the fixing device comprises an adjusting cavity which is provided with an outward opening and a downward opening in the end walls at the left side and the right side of the fixing frame, a first rotating frame is arranged between the front end wall and the rear end wall of the adjusting cavity in a rotating connection mode, a gasket is fixedly connected to the bottom wall at one end, away from each other, of the first rotating frame, medical personnel can place the machine body on the face of a patient before using the instrument, the gasket is attached to the face of the patient, the detection angle of the machine body can be adjusted by the rotating angle of the first rotating frame, a first threaded shaft is arranged on the end wall at the lower side of the machine body in a rotating connection mode, a first sliding frame is arranged on the first threaded shaft in a threaded connection mode, and a detection device used for controlling the first sliding frame to downwards penetrate into the oral cavity of the patient is arranged in the machine body, the detection device can control the machine body to move downwards after the machine body is fixed, the machine body drives the first sliding frame to extend into the oral cavity of a patient, the illumination lamp covers fixedly connected to the left end wall and the right end wall of the first sliding frame and used for illumination are arranged on the left end wall and the right end wall of the first sliding frame, the second rotating frame is arranged on the lower side end wall of the first sliding frame in a sliding connection mode, the unfolding device used for unfolding scanning equipment from left to right is arranged on the second rotating frame and comprises sliding rods fixedly connected to the left end wall and the right end wall of the second rotating frame and arranged on the sliding rods, the unfolding frame is arranged on the upper side end wall of the unfolding frame in a sliding connection mode and used for scanning, the unfolding frames on the left side and the right side of the unfolding device can be controlled to enable the detecting heads to be close to the end wall of the oral cavity of the patient as far as possible, so that, the scanning device can control the detecting head to rotate and move downwards after the detecting head is unfolded leftwards and rightwards, the detecting head can obtain a three-dimensional model of a horizontal position after the detecting head surrounds the first sliding frame for a circle, at the moment, the scanning device can control the detecting head to move downwards for a certain distance, so that the detecting head can scan the oral cavity of a patient at different vertical heights, the scanned oral cavity model is complete and accurate as far as possible, and finally the telescopic oral cavity three-dimensional high-precision scanner is realized.

2. The telescopic oral cavity three-dimensional high-precision scanner according to claim 1, wherein: fixing device includes sliding connection is equipped with between the end wall around the adjustment chamber slider, be equipped with first screw thread chamber in the slider upside end wall, the adjustment chamber with rotate between the mount upside end wall and be equipped with second threaded shaft, second threaded shaft is in mount upside fixed connection's the regulating wheel that is equipped with, second threaded shaft lower extreme is in first threaded chamber with slider threaded connection, rotate around the adjustment chamber between the end wall and be equipped with first spline chamber, fixed connection is equipped with in the first pivot first rotating frame and first straight gear, fixed connection be equipped with on the one side end wall that the slider was kept away from each other with first straight gear meshing's first rack.

3. The telescopic oral cavity three-dimensional high-precision scanner according to claim 1, wherein: the exploring device comprises an electric wire fixedly connected and arranged on the end wall of the upper side of the machine body, a first transmission cavity is arranged in the end wall of the left side of the machine body, a second rotating shaft is arranged between the front end wall and the rear end wall of the first transmission cavity in a rotating connection mode, a second straight gear is fixedly connected to the second rotating shaft, a second rack is fixedly connected to the fixing frame and slidably connected to the end wall of the left side of the machine body, a first motor is fixedly connected to the end wall of the front side of the machine body, a first motor shaft is arranged in the first motor shaft in a power connection mode, a second spline cavity is arranged in the end wall of the rear side of the first motor shaft, a third rotating shaft is arranged in the second spline cavity in a spline connection mode, a magnet is fixedly connected to the end wall of the front side of the third rotating shaft, an electromagnetic switch is fixedly connected to the end wall of the front side of the second spline cavity, a first spring is fixedly connected between the third rotating shaft and the end wall of the front side, and a third straight gear meshed with the second straight gear is fixedly connected to the first spring, and a first bevel gear is fixedly connected to the third rotating shaft.

4. The telescopic oral cavity three-dimensional high-precision scanner according to claim 1, wherein: the unfolding device comprises a sliding cavity which is arranged in the end wall of one side, close to each other, of the unfolding frame on the left side and the right side, the sliding rods are in sliding connection in the sliding cavity, a second threaded cavity is arranged in the end wall of the back of the unfolding frame, a third threaded shaft is arranged between the second threaded cavities on the left side and the right side in a threaded connection manner, a second sliding frame is arranged on the end wall of the back of the first sliding frame in a sliding connection manner, a second transmission cavity penetrating through the left end wall and the right end wall of the second sliding frame is arranged in the end wall of the front of the second transmission cavity, a third transmission cavity is arranged in the end wall of the front of the second transmission cavity, the third threaded shaft penetrates through the left end wall and the right end wall of the third transmission cavity and is rotatably connected with the second sliding frame, a worm wheel is fixedly connected in the third transmission cavity, a fourth rotating shaft is rotatably connected on the end wall of the back of the third transmission cavity, and, the fourth rotating shaft is fixedly connected with a second bevel gear in the second transmission cavity, a fourth transmission cavity is arranged in the rear end wall of the first sliding frame, a fifth rotating shaft is arranged between the upper end wall and the lower end wall of the fourth transmission cavity in a rotating connection mode, a sixth rotating shaft is arranged between the first transmission cavity and the lower end wall of the machine body in a rotating connection mode, the sixth rotating shaft is fixedly connected with a third bevel gear in the first transmission cavity, the lower end of the sixth rotating shaft is in a spline connection in the fifth rotating shaft and connected with the first sliding frame in a sliding and rotating mode, and a fourth bevel gear meshed with the second bevel gear is fixedly connected to the fifth rotating shaft.

5. The telescopic oral cavity three-dimensional high-precision scanner according to claim 1, wherein: the scanning device comprises a second motor fixedly connected and arranged in the lower side end wall of the machine body, a second motor shaft is arranged at the lower end of the second motor in a power connection mode, a fifth transmission cavity is arranged in the first sliding frame, the second motor shaft is arranged between the fifth transmission cavity and the upper side end wall of the first sliding frame in a rotating and sliding connection mode, a first threaded shaft is in threaded connection with the fifth transmission cavity and the upper side end wall of the first sliding frame, a rotating disc is fixedly connected and arranged in the fifth transmission cavity of the second motor shaft, a rotating pin is fixedly connected and arranged on the lower side end wall of the rotating disc, a fourth straight gear is fixedly connected and arranged on the second motor shaft at the lower side of the rotating disc, a first spline cavity is arranged in the lower side end wall of the first threaded shaft, and a grooved wheel which can be in contact with the rotating pin on the rotating disc is fixedly connected and arranged on the first threaded shaft, a spring seat is rotatably connected on the first threaded shaft at the lower side of the grooved pulley, a sixth transmission cavity is arranged in the end wall at the lower side of the first sliding frame with a downward opening, a seventh rotating shaft is rotatably connected between the sixth transmission cavity and the first threaded shaft, the upper end of the seventh rotating shaft is in spline connection in the first spline cavity, a fifth straight gear meshed with the unfolding frame is arranged on the seventh rotating shaft in a spline connection mode, a second spring is fixedly connected between the fifth straight gear and the spring seat, a sixth straight gear is fixedly connected with the seventh rotating shaft in the sixth transmission cavity, the lower side end wall of the first sliding frame is rotationally connected with the upper side end wall of the second rotating frame, and an eighth rotating shaft is fixedly connected to the upper side end wall of the second rotating frame, and a seventh straight gear meshed with the sixth straight gear is fixedly connected to the eighth rotating shaft.

Technical Field

The invention relates to the related field of three-dimensional manufacturing, in particular to a telescopic oral cavity three-dimensional high-precision scanner.

Background

The three-dimensional manufacturing has wide coverage content, wherein the three-dimensional scanning technology is a high and new technology integrating light, mechanical, electrical and computer technologies, is mainly used for scanning the spatial appearance, structure and color of an object to obtain the spatial coordinates of the surface of the object, and has the important significance of converting the three-dimensional information of a real object into a digital signal which can be directly processed by a computer and providing a quite convenient and fast means for digitalizing the real object.

The manufacturing of the oral cavity three-dimensional model requires that a medical worker stretches a camera into the oral cavity of a patient, then the medical worker rotates the camera, so that the camera can capture the three-dimensional space structure of the oral cavity of the patient, the traditional scanning mode is complex in process, the accuracy of scanning results is not high, a high-efficiency and high-accuracy three-dimensional scanner is not provided at present, and the invention is a telescopic oral cavity three-dimensional high-accuracy scanner.

Disclosure of Invention

The invention aims to provide a telescopic oral cavity three-dimensional high-precision scanner, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: a telescopic oral three-dimensional high-precision scanner comprises a scanner body, wherein a fixed frame is arranged on the end wall of the outer side of the scanner body in a sliding connection mode, a fixing device for fixing the scanner body is arranged on the fixed frame, the fixing device comprises an adjusting cavity which is formed by outwards opening and downwards arranging the end walls of the left side and the right side of the fixed frame, a first rotating frame is arranged between the front end wall and the rear end wall of the adjusting cavity in a rotating connection mode, a gasket is fixedly connected to the bottom wall of one end, away from each other, of the first rotating frame, a medical worker can place the scanner body on the face of a patient before using the scanner body, the gasket is attached to the face of the patient, the medical worker can adjust the detection angle of the scanner body through the rotating angle of the first rotating frame, a first threaded shaft is arranged on the end wall of the lower side of the scanner body, the machine body is internally provided with a probing device for controlling the first sliding frame to probe into the oral cavity of a patient downwards, the probing device can control the machine body to move downwards after the machine body is fixed, the machine body drives the first sliding frame to extend into the oral cavity of the patient, the left end wall and the right end wall of the first sliding frame are fixedly connected with illuminating lamp shades for illumination, the lower side end wall of the first sliding frame is provided with a second rotating frame in a sliding connection manner, the second rotating frame is provided with a unfolding device for unfolding scanning equipment leftwards and rightwards, the unfolding device comprises sliding rods fixedly connected with the left end wall and the right end wall of the second rotating frame, the sliding rods are provided with unfolding frames in a sliding connection manner, the upper side end wall of each unfolding frame is fixedly connected with a detecting head for scanning, the unfolding frames on the left side and the right side can be controlled by the unfolding devices, so that the detecting heads can be as, therefore, a relatively accurate scanning result is obtained, a scanning device used for controlling the scanning path of the detecting head is arranged in the first sliding frame, the scanning device can control the detecting head to rotate and move downwards after the detecting head is unfolded leftwards and rightwards, the detecting head can obtain a horizontal three-dimensional model after the detecting head surrounds the first sliding frame for a circle, at the moment, the scanning device can control the detecting head to move downwards for a certain distance, so that the detecting head can scan the oral cavity of a patient at different vertical heights, the scanned oral cavity model is complete and accurate as far as possible, and finally the telescopic oral cavity three-dimensional high-precision scanner is realized.

Further, fixing device includes sliding connection is equipped with between the end wall around the adjustment chamber the slider, be equipped with first screw thread chamber in the slider upside end wall, the adjustment chamber with rotate between the end wall of mount upside and be equipped with second threaded shaft, second threaded shaft is in mount upside fixed connection's the regulating wheel that is equipped with, second threaded shaft lower extreme is in first threaded chamber with slider threaded connection, rotate between the end wall around the adjustment chamber and be equipped with first spline chamber of connecting, fixed connection is equipped with in the first pivot first rotating frame and first straight gear, fixed connection be equipped with on the one side end wall that the slider kept away from each other with first straight gear meshed's first rack.

Furthermore, the detection device comprises an electric wire fixedly connected and arranged on the end wall of the upper side of the machine body, a first transmission cavity is arranged leftwards in the end wall of the left side of the machine body, a second rotating shaft is arranged between the front end wall and the rear end wall of the first transmission cavity in a rotating connection manner, a second straight gear is fixedly connected to the second rotating shaft, a second rack slidably connected to the end wall of the left side of the machine body is fixedly connected to the fixing frame, a first motor is fixedly connected to the end wall of the front side of the machine body, a first motor shaft is arranged at the rear end of the first motor shaft in a power connection manner, a second spline cavity is arranged in the wall of the rear end of the first motor shaft, a third rotating shaft is arranged in the second spline cavity in a spline connection manner, a magnet is fixedly connected to the end wall of the front side of the third rotating shaft, and an electromagnetic switch is fixedly connected to the end wall of the front side, the third pivot with fixed connection between the second spline chamber front side end wall is equipped with first spring, fixed connection be equipped with on the first spring with second straight-tooth gear meshed third straight-tooth gear, fixed connection be equipped with first bevel gear in the third pivot.

Furthermore, the unfolding device comprises a sliding cavity which is arranged in the end wall of one side, close to each other, of the unfolding frame on the left side and the right side, the sliding rods are connected in the sliding cavity in a sliding manner, a second threaded cavity is arranged in the end wall of the back of the unfolding frame, a third threaded shaft is arranged between the second threaded cavities on the left side and the right side in a threaded connection manner, a second sliding frame is arranged on the end wall of the back of the first sliding frame in a sliding manner, a second transmission cavity penetrating through the left end wall and the right end wall of the second sliding frame is arranged in the end wall of the front of the second transmission cavity, a third transmission cavity is arranged in the end wall of the front of the second transmission cavity, the third threaded shaft penetrates through the left end wall and the right end wall of the third transmission cavity and is connected with the second sliding frame in a rotating manner, a worm wheel is fixedly connected in the third transmission cavity, and a fourth, the worm is fixedly connected with the fourth rotating shaft and meshed with the worm wheel, the fourth rotating shaft is fixedly connected with a second bevel gear in the second transmission cavity, a fourth transmission cavity is arranged in the rear end wall of the first sliding frame, a fifth rotating shaft is rotatably connected between the upper end wall and the lower end wall of the fourth transmission cavity, a sixth rotating shaft is rotatably connected between the first transmission cavity and the lower end wall of the machine body, the sixth rotating shaft is fixedly connected with a third bevel gear in the first transmission cavity, the lower end of the sixth rotating shaft is connected with a fifth rotating shaft through an internal spline and is connected with the first sliding frame in a sliding and rotating mode, and a fourth bevel gear meshed with the second bevel gear is fixedly connected with the fifth rotating shaft.

Furthermore, the scanning device comprises a second motor fixedly connected in the lower side end wall of the machine body, a second motor shaft is arranged at the lower end of the second motor in a power connection manner, a fifth transmission cavity is arranged in the first sliding frame, a second motor shaft is arranged between the fifth transmission cavity and the upper side end wall of the first sliding frame in a rotating and sliding manner, a first threaded shaft is in threaded connection between the fifth transmission cavity and the upper side end wall of the first sliding frame, a turntable is fixedly connected in the fifth transmission cavity of the second motor shaft, a rotating pin is fixedly connected on the lower side end wall of the turntable, a fourth straight gear is fixedly connected on the second motor shaft at the lower side of the turntable, a first spline cavity is arranged in the lower side end wall of the first threaded shaft, and a grooved wheel which can be in contact with the rotating pin on the turntable is fixedly connected on the first threaded shaft, a spring seat is rotatably connected on the first threaded shaft at the lower side of the grooved pulley, a sixth transmission cavity is arranged in the end wall at the lower side of the first sliding frame with a downward opening, a seventh rotating shaft is rotatably connected between the sixth transmission cavity and the first threaded shaft, the upper end of the seventh rotating shaft is in spline connection in the first spline cavity, a fifth straight gear meshed with the unfolding frame is arranged on the seventh rotating shaft in a spline connection mode, a second spring is fixedly connected between the fifth straight gear and the spring seat, a sixth straight gear is fixedly connected with the seventh rotating shaft in the sixth transmission cavity, the lower side end wall of the first sliding frame is rotationally connected with the upper side end wall of the second rotating frame, and an eighth rotating shaft is fixedly connected to the upper side end wall of the second rotating frame, and a seventh straight gear meshed with the sixth straight gear is fixedly connected to the eighth rotating shaft.

The invention has the beneficial effects that: a telescopic three-dimensional high-precision scanner for an oral cavity can be stably placed on the face of a patient before scanning, then a camera is inserted into the oral cavity, and the influence of hand shake or other vibration of medical staff is small, so that a three-dimensional structure is obtained more accurately; the camera can rotate automatically in the oral cavity of the patient, the medical staff is not needed to rotate manually, the modeling efficiency is high, the consumed time is short, and the labor consumption of the medical staff is reduced.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic diagram of the overall structure of a telescopic oral three-dimensional high-precision scanner according to the present invention;

FIG. 2 is an enlarged view of the structure at "A" in FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;

FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 5.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 6, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a telescopic oral cavity three-dimensional high-precision scanner, which is mainly applied to a three-dimensional scanner and is further explained by combining the attached drawings of the invention.

The invention relates to a telescopic oral three-dimensional high-precision scanner, which comprises a machine body 10, wherein a fixed frame 50 is arranged on the end wall at the outer side of the machine body 10 in a sliding connection manner, a fixing device 991 for fixing the machine body 10 is arranged on the fixed frame 50, the fixed frame 991 comprises an adjusting cavity 18 which is arranged in the outer direction and the downward direction of the inner opening of the end wall at the left side and the right side of the fixed frame 50, a first rotating frame 25 is arranged between the front end wall and the rear end wall of the adjusting cavity 18 in a rotating connection manner, a gasket 26 is fixedly connected to the bottom wall at one end, which is far away from the first rotating frame 25, a medical worker can place the machine body 10 on the face of a patient before using the scanner, the gasket 26 is attached to the face of the patient, the medical worker can adjust the detection angle of the machine body 10 by the rotating angle of the first rotating frame 25, threaded connection's on the first threaded shaft 32 is equipped with first carriage 29, be equipped with in the organism 10 and be used for control first carriage 29 advances device 992 of exploring in patient's oral cavity downwards, it can to visit device 992 organism 10 fixed back control of accomplishing the organism 10 moves down, organism 10 drives first carriage 29 stretches into patient's oral cavity, fixed connection is equipped with the illumination lamp shade 30 that is used for the illumination about first carriage 29 on the end wall, sliding connection is equipped with second rotating turret 40 on the end wall of first carriage 29 downside, be equipped with the expansion device 993 that is used for controlling expansion scanning equipment on the second rotating turret 40, expansion device 993 includes the slide bar 41 that fixed connection is equipped with on the end wall about second rotating turret 40, sliding connection is equipped with on slide bar 41 and expands frame 44, it is equipped with the detecting head that is used for the scanning to expand fixed connection on the end wall of frame 44 upside, the deployment device 993 controls the deployment frame 44 on both the left and right sides, so that the probe 43 is as close as possible to the end wall of the patient's mouth, so as to obtain a relatively precise scanning result, a scanning device 994 for controlling the scanning path of the detecting head 43 is provided in the first carriage 29, the scanning device 994 may control the rotation and downward movement of the detector head 43 after the detector head 43 is deployed side-to-side, after the detector head 43 has been looped around the first carriage 29, the detector head 43 can obtain a three-dimensional model of the horizontal position, at which time, the scanning device 994 can control the detecting head 43 to move downwards for a certain distance, so that the detecting head 43 can scan the oral cavity of the patient at different vertical heights, the scanned oral cavity model is complete and accurate as much as possible, and finally the telescopic oral cavity three-dimensional high-precision scanner is realized.

Beneficially, fixing device 991 includes slider 19 that sliding connection was equipped with between the front and back end wall of adjustment chamber 18, be equipped with first screw thread chamber 20 in the side end wall of slider 19, what rotate to connect between adjustment chamber 18 and the side end wall of mount 50 is equipped with second screw thread axle 17, second screw thread axle 17 is in the fixed connection of mount 50 upside is equipped with adjusting wheel 16, second screw thread axle 17 lower extreme in first screw thread chamber 20 with slider 19 threaded connection, what rotate to connect between the front and back end wall of adjustment chamber 18 is equipped with 2 first spline chamber 33, what fixed connection was equipped with on first pivot 23 first rotating frame 25 and first straight gear 22, what fixed connection was equipped with on the side end wall that slider 19 kept away from each other with first rack 21 with first straight gear 22 meshing.

Beneficially, the probing device 992 includes an electric wire 12 fixedly connected to the upper end wall of the machine body 10, a first transmission cavity 11 is arranged in the left end wall of the machine body 10, a second rotation shaft 52 is arranged between the front end wall and the rear end wall of the first transmission cavity 11, a second spur gear 15 is arranged on the second rotation shaft 52, a second rack 51 slidably connected to the left end wall of the machine body 10 is arranged on the fixed frame 50, a first motor 53 is arranged in the front end wall of the machine body 10, a first motor shaft 54 is arranged in the rear end of the first motor 53 in a power connection manner, a second spline cavity 57 is arranged in the rear end wall of the first motor shaft 54, a third rotation shaft 59 is arranged in the second spline cavity 57 in a spline connection manner, a magnet 58 is arranged in the front end wall of the third rotation shaft 59 in a fixed connection manner, an electromagnetic switch 55 is arranged in the front end wall of the second spline cavity 57 in a fixed connection manner, a first spring 56 is fixedly connected between the third rotating shaft 59 and the front side end wall of the second spline cavity 57, a third straight gear 60 meshed with the second straight gear 15 is fixedly connected to the first spring 56, and a first bevel gear 61 is fixedly connected to the third rotating shaft 59.

Beneficially, the unfolding device 993 includes a sliding cavity 42 provided in the end wall of the unfolding frame 44 on the left and right sides close to each other, the sliding rod 41 is slidably connected in the sliding cavity 42, a second threaded cavity 75 is provided in the rear end wall of the unfolding frame 44, a third threaded shaft 73 is provided in the threaded connection between the second threaded cavities 75 on the left and right sides, a second sliding frame 68 is provided in the rear end wall of the first sliding frame 29 in a sliding connection, a second transmission cavity 69 penetrating through the left and right end walls of the second sliding frame 68 is provided in the front end wall of the second sliding frame 68, a third transmission cavity 74 is provided in the front end wall of the second transmission cavity 69, the third threaded shaft 73 penetrates through the left and right end walls of the third transmission cavity 74 and is rotatably connected with the second sliding frame 68, the third threaded shaft 73 is provided with a worm wheel 71 fixedly connected in the third transmission cavity 74, a fourth rotating shaft 70 is rotatably connected to the rear end wall of the third transmission cavity 74, a worm 72 engaged with the worm wheel 71 is fixedly connected to the fourth rotating shaft 70, the fourth rotating shaft 70 is fixedly connected in the second transmission cavity 69 and is provided with a second bevel gear 67, a fourth transmission cavity 65 is arranged in the rear end wall of the first sliding frame 29, a fifth rotating shaft 64 is rotatably connected between the upper end wall and the lower end wall of the fourth transmission cavity 65, a sixth rotating shaft 63 is rotatably connected between the first transmission cavity 11 and the lower end wall of the machine body 10, the sixth rotating shaft 63 is fixedly connected with a third bevel gear 62 in the first transmission cavity 11, the lower end of the sixth shaft 63 is splined in the fifth shaft 64 and is slidably and rotatably connected to the first carriage 29, and a fourth bevel gear 66 meshed with the second bevel gear 67 is fixedly connected to the fifth rotating shaft 64.

Beneficially, the scanner 994 includes a second motor 27 fixedly connected to the lower end wall of the machine body 10, a second motor shaft 28 is disposed at the lower end of the second motor 27, the fifth transmission cavity 31 is disposed in the first sliding frame 29, the second motor shaft 28 is rotatably and slidably connected between the fifth transmission cavity 31 and the upper end wall of the first sliding frame 29, the first threaded shaft 32 is threadedly connected between the fifth transmission cavity 31 and the upper end wall of the first sliding frame 29, the second motor shaft 28 is fixedly connected to the fifth transmission cavity 31 and is provided with a rotary table 34, the lower end wall of the rotary table 34 is provided with a rotating pin, the lower side of the rotary table 34 is fixedly connected to the second motor shaft 28 and is provided with a fourth straight gear 48, the lower end wall of the first threaded shaft 32 is provided with a first spline cavity 33, the first threaded shaft 32 is fixedly connected to a grooved wheel 45 which can contact with the rotating pin on the rotary table 34 The first threaded shaft 32 on the lower side of the sheave 45 is rotatably connected to be provided with a spring seat 46, a sixth transmission cavity 36 with a downward opening is formed in the end wall on the lower side of the first sliding frame 29, a seventh rotating shaft 35 is rotatably connected between the sixth transmission cavity 36 and the first threaded shaft 32, the upper end of the seventh rotating shaft 35 is connected to the first spline cavity 33 through a spline, a fifth straight gear 47 meshed with the expansion frame 44 is arranged on the seventh rotating shaft 35 through a spline, a second spring 49 is fixedly connected between the fifth straight gear 47 and the spring seat 46, the seventh rotating shaft 35 is fixedly connected to be provided with a sixth straight gear 37 in the sixth transmission cavity 36, the end wall on the lower side of the first sliding frame 29 is rotatably connected to the end wall on the upper side of the second rotating frame 40, and an eighth rotating shaft 38 is fixedly connected to the end wall on the upper side of the second rotating frame 40, a seventh spur gear 39 meshed with the sixth spur gear 37 is fixedly connected to the eighth rotating shaft 38.

The following detailed description of the usage steps of the telescopic oral cavity three-dimensional high-precision scanner in this document is made with reference to fig. 1 to 6:

at the beginning, the medical staff places the packing ring 26 on the face of the patient, then rotates the adjusting wheel 16, the adjusting wheel 16 drives the second threaded shaft 17 to rotate, the second threaded shaft 17 drives the sliding block 19 to slide up and down, the sliding block 19 drives the first rack 21 to move up and down, the first rack 21 drives the first straight gear 22 to rotate, the first straight gear 22 drives the first rotating shaft 23 to rotate, the first rotating shaft 23 drives the first rotating frame 25 to rotate, and the first rotating frame 25 drives the packing ring 26 to rotate until the suitable probing angle is adjusted.

The first motor 53 is started, the first motor 53 sequentially drives the first motor shaft 54, the third rotating shaft 59, the third straight gear 60 and the second straight gear 15 to rotate, the second rack 51 pushes the second straight gear 15 to move downwards, the second straight gear 15 drives the machine body 10 to move downwards, the machine body 10 drives the second motor shaft 28 to move downwards, the second motor shaft 28 drives the first sliding frame 29 to move downwards, the first sliding frame 29 drives the second rotating frame 40 to move downwards, the second rotating frame 40 drives the sliding rod 41 to move downwards, the sliding rod 41 drives the expanding frame 44 to move downwards, the expanding frame 44 drives the detecting head 43 to move downwards, and the detecting head 43 is detected in the oral cavity of the patient.

The electromagnetic switch 55 is turned on, the electromagnetic switch 55 attracts the magnet 58 and drives the magnet 58 to move forward, the magnet 58 drives the third rotating shaft 59 to move forward, the third rotating shaft 59 drives the third spur gear 60 and the first bevel gear 61 to move forward, the first bevel gear 61 is engaged with the third bevel gear 62, the third spur gear 60 is disengaged from the second spur gear 15, the first bevel gear 61 drives the third bevel gear 62 to rotate, the third bevel gear 62 drives the sixth rotating shaft 63 to rotate, the sixth rotating shaft 63 drives the fifth rotating shaft 64 to rotate, the fifth rotating shaft 64 drives the fourth bevel gear 66 to rotate, the fourth bevel gear 66 drives the second bevel gear 67 to rotate, the fourth bevel gear 67 drives the fourth rotating shaft 70 to rotate, and the fourth rotating shaft 70 drives the worm 72 to rotate, the worm 72 drives the worm wheel 71 to rotate, the worm wheel 71 drives the third threaded shaft 73 to rotate, the third threaded shaft 73 drives the unfolding frames 44 on the left and right sides to slide towards the sides far away from each other, the detection heads 43 of the unfolding frames 44 are unfolded left and right, and the first motor 53 is turned off.

The second motor 27 is started, the second motor 27 drives the second motor shaft 28 to rotate, the second motor shaft 28 drives the fourth spur gear 48 to rotate, the fourth spur gear 48 drives the fifth spur gear 47 to rotate, the fifth spur gear 47 drives the seventh rotating shaft 35 to rotate, the seventh rotating shaft 35 drives the sixth spur gear 37 to rotate, the sixth spur gear 37 drives the seventh spur gear 39 to rotate, the seventh spur gear 39 drives the eighth rotating shaft 38 to rotate, the eighth rotating shaft 38 drives the second rotating frame 40 to rotate, the second rotating frame 40 drives the sliding rod 41 to rotate, the sliding rod 41 drives the expanding frame 44 to rotate around the first sliding frame 29, the expanding frame 44 drives the detecting head 43 to rotate for a circle, at this time, the rotating pin on the rotating disc 34 is in contact with the grooved wheel 45, the turntable 34 drives the grooved pulley 45 to rotate, the grooved pulley 45 drives the first threaded shaft 32 to rotate, the first threaded shaft 32 drives the first sliding frame 29 to move downwards by one end distance, when the first sliding frame 29 moves downwards, the fourth straight gear 48 and the fifth straight gear 47 are not in contact, and finally the probe 43 scans the inside of the whole oral cavity, so that the telescopic oral cavity three-dimensional high-precision scanner is realized.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.