Medical orthodontic training device

Abstract

The invention provides a medical orthodontic training device, and relates to the field of medical instruments. The medical orthodontic training device comprises a training support and a storage box, the training support is fixedly arranged at the rear end of the storage box, two sliding grooves are formed in each of the two sides of the upper end face of the training support, connecting plates are slidably arranged in the four sliding grooves, fixing frames are fixedly connected to the upper ends of the four connecting plates, and the fixing frames are fixedly connected to the lower ends of the fixing frames. Adjusting screws are connected to the positions, close to the midpoints, of the rear end faces of the four fixing frames in a threaded penetrating and sleeving mode. When the device is used, the storage cabinet door can be automatically opened, the training mold can be automatically pushed out, and the situation that other molds are polluted when a plurality of molds are taken and stored in the same space can be avoided; and meanwhile, an alternate training table is arranged, so that the use requirement that a user quickly and alternately replaces molds can be met, and the training of the user and the synchronous inspection of a tutor on training results do not interfere with each other.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, in particular to a medical oral orthodontic training device. Background Art

[0002] Medical orthodontic training refers to orthodontic training and education for dental professionals such as dentists and dental technicians. This training usually covers the basic theories, diagnostic techniques, treatment methods, etc. of orthodontics, helping professionals master the relevant knowledge and skills of orthodontic treatment and improve their professional level in the field of orthodontics. By receiving medical orthodontic training, doctors can learn how to diagnose and treat various dental and maxillofacial deformities, as well as how to effectively use braces and other orthodontic devices to adjust the patient's tooth position and occlusion.

[0003] When beginners are undergoing orthodontic training, the purpose of their learning is to improve their clinical operation skills. When they are just starting out, they usually use dental correction models and orthodontic teaching models to train students, allowing them to operate on the models in order to improve their orthodontic operation skills. However, when using dental correction models and orthodontic teaching models for training, the molds need to be fixed so that they are not disturbed by other shaking factors during training.

[0004] In the prior art, a box is usually provided to store molds for oral orthodontic training. For example, in the patent with the authorization announcement number CN109727517B, a "medical oral orthodontic training device, relating to the technical field of medical devices, comprising a support table, the upper surface of the support table is fixedly connected to a U-shaped plate, the upper surface of the U-shaped plate is clamped with a first threaded cap, the inner wall of the first threaded cap is threadedly connected with a first threaded column, the top and bottom ends of the first threaded column are respectively fixedly connected to the lower surface of the extrusion block and the upper surface of the handle, the upper surface of the extrusion block is overlapped with the bottom end of the first rotating device, and the first rotating device is clamped to the lower surface of the operating panel The inner wall of the surface is provided with a first groove. The medical oral orthodontic training device adjusts the height of the operating panel through the joint action of the first threaded column, the first threaded cap, the handle, the extrusion block, the first rotating shaft, the first bearing, the slide groove, the slider and the spring, so that the height is suitable for students of different body shapes, which facilitates the operation of orthodontic training for students. "It is provided with a mold shell to store the mold for oral orthodontic training, and a cover plate is hingedly connected to one side of the mold shell by a hinge. When taking the mold, the hand needs to be inserted into the mold shell, which may easily cause other molds to be contaminated. In addition, in this technical solution, it is inconvenient to store and take the training mold, and it is difficult to quickly take the required mold.

[0005] At the same time, the single training fixed point makes it impossible for the instructor to intuitively check and correct the training results in a fixed state after the training user completes a single training, and the training user cannot take into account the instructor's inspection and the next training synchronous operation. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a medical orthodontic training device, which solves the problems of inconvenient storage and retrieval of training molds, difficulty in quickly obtaining the required molds, and a single training fixed point that makes it impossible for the instructor to intuitively check and correct the training results in a fixed state after the trainee completes a single training session, and the trainee cannot take into account the simultaneous operation of the instructor's inspection and the next training session.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a medical oral orthodontic training device, comprising a training support and a storage box, the training support is fixedly arranged at the rear end of the storage box, two slide grooves are provided on both sides of the upper end surface of the training support, four connecting plates are slidably arranged in the four slide grooves, the upper ends of the four connecting plates are fixedly connected to a fixed frame, the rear end surfaces of the four fixed frames are threadedly penetrated and sleeved with adjusting screws at the midpoints, one end of the four adjusting screws is rotatably connected to an extrusion plate through a bearing, the four connecting plates are divided into a group of two, and a first linkage tooth plate and a second linkage tooth plate are fixedly arranged at one end of each group of connecting plates away from the fixed frame;

[0010] A No. 1 track frame and a No. 2 track frame are embedded on both sides of the upper end of the training support, a No. 2 motor is fixedly arranged on one side of the outer wall of the two No. 1 track frames, and a threaded column is fixedly arranged at the output end of the No. 2 motor, one of the two No. 1 track frames and the No. 2 track frame is fixedly connected to the other by two fixing rods, and a connecting gear is arranged at the midpoint of the opposite side of the No. 1 track frame and the No. 2 track frame to rotate through a rotating shaft;

[0011] A base is fixedly provided on the inner bottom end surface of the storage box through two supporting plates, a mounting seat is movably provided on the upper end of the base, an inner box is embedded in the upper end surface of the mounting seat, a center column is fixedly provided at the midpoint of the upper end surface of the mounting seat, a plurality of racks are fixedly provided on the outer wall of the center column near the upper end, a No. 1 motor is embedded at the inner part of the center column near the upper end, and a driving screw is fixedly sleeved on the output end of the No. 1 motor, a plurality of driving gears and auxiliary gears are rotatably embedded in the inner box, a linkage shaft is fixedly provided at the midpoint of one end of the plurality of driving gears, and a No. 2 bevel gear is fixedly sleeved on the end of the linkage shaft away from the driving gear, the No. 2 bevel gear is meshedly connected with the No. 1 bevel gear, and a linkage screw is fixedly provided at the midpoint of one end of the No. 1 bevel gear away from the No. 2 bevel gear.

[0012] Preferably, the inner box is cylindrical and has a through hole at the midpoint of the upper end surface, the center column is arranged through the through hole, and a through groove is provided at the midpoint of the upper end surface of the storage box.

[0013] Preferably, the interior of the inner box is divided into five layers and each layer is provided with six cavities at equal intervals, a plurality of the cavities pass through one side of the outer wall of the inner box and a cabinet door is rotatably provided and a label bag is fixedly provided on the outer surface of the cabinet door, wherein the interior of the inner box is divided into five upper and lower layers of space at equal intervals by five bottom plates, and the linkage screw is located inside the cavity.

[0014] Preferably, a movable plate is movably provided at the upper surface of the bottom plate located at the bottom end surface of the plurality of cavities, and the movable plate is threadably sleeved with the linkage screw.

[0015] Preferably, the driving screw is threadedly sleeved with the mounting seat, guide rods are rotatably provided on both sides of the interior of the storage box and are respectively slidably sleeved with two ends of the mounting seat, and the driving screw rotates through the base.

[0016] Preferably, the threaded column is threadedly connected with the No. 1 linkage gear plate located in the No. 1 track frame, and the No. 1 linkage gear plate and the No. 2 linkage gear plate are provided with connecting teeth on opposite sides, and the No. 1 linkage gear plate and the No. 2 linkage gear plate are meshed and connected with the connecting gear through the connecting teeth on the opposite sides, wherein the No. 1 linkage gear plate and the No. 2 linkage gear plate are arranged in relatively staggered positions, and the No. 1 track frame and the No. 2 track frame are provided with track grooves at the midpoint of the outer surfaces directly below the slide groove.

[0017] Preferably, a training mold is provided in each of the cavities and the training molds in the cavities in the same layer of space are molds of the same type.

[0018] Preferably, the plurality of driving gears and auxiliary gears are divided into five layers and the total number of driving gears and auxiliary gears in each layer is twelve, the number of racks is twelve, and the driving gears and auxiliary gears located in the same layer are respectively meshed and connected with the racks on the same vertical line.

[0019] Working principle: when storing the training mold, first start the No. 1 motor to drive the driving screw to rotate, and use the driving screw to be threadedly sleeved with the mounting seat and the mounting seat is restricted by the guide rods at both ends to realize the upward movement of the mounting seat, and then realize the upward movement of the inner box at the upper end of the mounting seat. At this time, the inner box is in the process of moving up, and the driving gear and auxiliary gear are arranged on the inner side to move up together, and in the process of moving up, the driving gear and the auxiliary gear will mesh with the rack arranged on the outer side of the center column at the upper end, so that the driving gear and the auxiliary gear will rotate, and when the driving gear rotates, it will drive the linkage shaft and the No. 2 bevel gear completed by the linkage shaft to rotate, and then the rotation of the No. 2 bevel gear is used to realize the rotation of the No. 1 bevel gear and the linkage screw fixed at the center of the No. 1 bevel gear. Since a movable plate that can only slide horizontally is arranged in the cavity opened inside the inner box, and the movable plate is threadedly sleeved with the linkage screw, at this time, the movable plate is translated outward and pushes open the cabinet door, and the corresponding training mold can be placed inside according to the label in the label bag on the outer surface of the cabinet door;

[0020] When taking out the training mold for orthodontic training, the inner box is pushed out by the No. 1 motor and the cabinet door and the movable plate are automatically opened. After the training mold on the upper end of the movable plate is automatically pushed out, the required training mold is placed on the inner side of the fixed frame and the extrusion plate is pushed by the adjusting screw to assist in extruding and fixing the training mold. At this time, the user can perform orthodontic training and after completing the mold training in the current fixed frame, the second motor is started to complete the alternating replacement of another idle fixed frame. At this time, the instructor can directly observe the user's training situation and the trainee can directly perform quick training and use of the next mold.

[0021] (III) Beneficial effects

[0022] The present invention provides a medical oral orthodontic training device, which has the following beneficial effects:

[0023] 1. An inner box is arranged in the storage box. The inner box is cylindrical and has a through hole on the upper end. A plurality of driving gears and auxiliary gears are arranged on the inner side of the through hole. When taking and storing, the No. 1 motor in the center column drives the driving screw to rotate to realize the linkage upward movement of the mounting seat and the inner seat. At this time, the driving gear and the auxiliary gear move up synchronously and generate meshing driving force with the rack on the outside of the center column to cause them to rotate. After the driving gear rotates, the linkage shaft, the No. 2 bevel gear, the No. 1 bevel gear and the linkage screw will rotate. The rotation of the linkage screw will push the movable plate with the outer thread sleeve to move horizontally, thereby realizing the automatic opening and closing operation of the cabinet door. Each movable plate corresponds to a single independent mold storage cavity, thereby avoiding the contamination of other molds caused by taking and storing multiple molds in the same space.

[0024] 2. A group of interchangeable fixed frames are respectively provided on both sides of the upper end of the training bracket. When used for training, the training molds required for training are clamped in the fixed frames. Since the fixed frames for training are provided on both sides, two users can use the training operation together. Since two interchangeable fixed frames are provided on one side, when the user completes the training operation of the training mold in one of the fixed frames, the other idle mold can be directly replaced for the next quick training. The molds after the training are completed can be observed and distinguished by the practice instructor to quickly determine the training results and the defects and deficiencies in the training. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the shaft side structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at A;

[0028] Figure 4 It is a schematic diagram of the top view of the inner box of the present invention;

[0029] Figure 5 It is a schematic diagram of the local structure of the driving gear of the present invention;

[0030] Figure 6 It is a schematic diagram of the linkage structure of the No. 1 track frame and the No. 2 track frame of the present invention.

[0031] Among them, 1. training support; 2. slide groove; 3. adjustment screw; 4. fixed frame; 5. extrusion plate; 6. center column; 7. rack; 8. through groove; 9. storage box; 10. guide rod; 11. mounting seat; 12. support plate; 13. drive screw; 14. base; 15. inner box; 16. label bag; 17. cavity; 18. cabinet door; 19. No. 1 motor; 20. moving plate; 21. linkage screw; 22. bottom plate; 23. drive gear; 24. linkage shaft; 25. auxiliary gear; 26. through hole; 27. No. 1 bevel gear; 28. No. 2 bevel gear; 29. ​​No. 1 linkage gear plate; 30. connecting plate; 31. connecting gear; 32. rotating shaft; 33. track groove; 34. No. 1 track frame; 35. threaded column; 36. No. 2 motor; 37. No. 2 track frame; 38. No. 2 linkage gear plate; 39. fixing rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in 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.

[0033] like Figure 1-6 As shown, an embodiment of the present invention provides a medical oral orthodontic training device, including a training support 1 and a storage box 9, the training support 1 is fixedly arranged at the rear end of the storage box 9, two slide grooves 2 are opened on both sides of the upper end surface of the training support 1, and connecting plates 30 are slidably arranged in four slide grooves 2, and the upper ends of the four connecting plates 30 are fixedly connected to the fixing frame 4, and the rear end surfaces of the four fixing frames 4 are threadedly penetrated and sleeved with adjusting screws 3 at the midpoints, and one end of the four adjusting screws 3 is rotatably connected to the extrusion plate 5 through the bearing, and the four connecting plates 30 are divided into a group of two, and the end of each group of connecting plates 30 away from the fixing frame 4 is respectively fixedly provided with a first linkage tooth plate 29 and a second linkage tooth plate 38;

[0034] Specifically, Figure 1 and Figure 6 As shown, since the No. 1 linkage tooth plate 29 and the No. 2 linkage tooth plate 38 located on the same layer are respectively fixedly connected to the two fixed frames 4, the connecting plate 30 is located in the slide groove 2 for horizontal sliding and the two connecting plates 30 are respectively connected to the No. 1 linkage tooth plate 29 and the No. 2 linkage tooth plate 38. At this time, when the No. 1 linkage tooth plate 29 and the No. 2 linkage tooth plate 38 are displaced, the upper connecting plate 30 and the two fixed frames 4 connected to the connecting plate 30 can be driven to synchronously displace horizontally.

[0035] When training, the training mold needs to be fixed. After the training mold is placed on the inner side of the fixed frame 4, the outer adjusting screw 3 is rotated. Since the adjusting screw 3 thread penetrates the fixed frame 4, and the other end is rotatably connected to the extrusion plate 5 through a bearing, the adjusting screw 3 will push the extrusion plate 5 to move horizontally when it moves horizontally, thereby clamping and fixing the training mold placed in the fixed frame 4. Since the two fixed frames 4 located on the same layer are affected by the No. 1 linkage tooth plate 29 and the No. 2 linkage tooth plate 38 at the lower end, they are displaced alternately in front and behind. At this time, different types of training molds can be installed and fixed in another fixed frame 4 on the same side, so that after completing the mold training in the current fixed frame 4, the training operation of another mold can be quickly carried out, and the mold that has completed the training is still fixed on the fixed frame 4, so as to facilitate the user's training instructor to quickly check and check, quickly point out the defects and deficiencies of the training structure, and have the effect of non-interference between the user's training and the instructor's inspection work;

[0036] At the same time, since two fixing frames 4 are arranged on both sides of the training support 1, the device can be provided to two training users for training operations at the same time during actual use, and the practical function is better.

[0037] A No. 1 track frame 34 and a No. 2 track frame 37 are embedded on both sides of the upper end of the training support 1. A No. 2 motor 36 is fixedly arranged on one side of the outer wall of the two No. 1 track frames 34, and a threaded column 35 is fixedly arranged at the output end of the No. 2 motor 36. One of the two No. 1 track frames 34 and the No. 2 track frames 37 is fixedly connected to the No. 1 track frame 34 and the No. 2 track frame 37 by two fixing rods 39, and a connecting gear 31 is rotatably arranged at the midpoint of the No. 1 track frame 34 and the No. 2 track frame 37 on the opposite side through the rotating shaft 32;

[0038] Specifically, Figure 6 As shown, the threaded column 35 is threadedly sleeved with the No. 1 linkage tooth plate 29 located in the No. 1 track frame 34, and the No. 1 track frame 34 and the No. 2 track frame 37 are both provided with a track groove 33 at the midpoint of the outer surface located at the lower end of the slide groove 2;

[0039] When in use, by starting the No. 2 motor 36 to drive the threaded column 35 to rotate, the No. 1 linkage gear plate 29 connected with the outer thread sleeve will be pushed to perform lateral displacement. Since the No. 1 linkage gear plate 29 and the No. 2 linkage gear plate 38 are provided with connecting teeth on the opposite sides, the No. 1 linkage gear plate 29 and the No. 2 linkage gear plate 38 are meshed and connected with the connecting gear 31 through the connecting teeth on the opposite sides, wherein the No. 1 linkage gear plate 29 and the No. 2 linkage gear plate 38 are arranged in a relatively staggered position. At this time, the lateral movement of the No. 1 linkage gear plate 29 will drive the connecting gear 31 to rotate, and the rotation of the connecting gear 31 will push the No. 2 linkage gear plate 38, thereby realizing the No. 1 linkage gear plate 29 and the No. 2 linkage gear plate 38 to perform opposite movements one after the other, thereby realizing the alternating movement of the two fixed frames 4 connected at the upper ends by the connecting plate 30, and realizing a fast alternating replacement operation.

[0040] A base 14 is fixedly provided on the bottom end surface of the storage box 9 through two support plates 12, a mounting seat 11 is movably provided on the upper end of the base 14, an inner box 15 is embedded in the upper end surface of the mounting seat 11, a center column 6 is fixedly provided at the midpoint of the upper end surface of the mounting seat 11, a plurality of racks 7 are fixedly provided on the outer wall of the center column 6 near the upper end, a No. 1 motor 19 is embedded in the center of the center column 6 near the upper end, and a driving screw 13 is fixedly sleeved on the output end of the No. 1 motor 19, a plurality of driving gears 23 and auxiliary gears 25 are rotatably embedded in the inner box 15, a linkage shaft 24 is fixedly provided at the midpoint of one end of the plurality of driving gears 23, and a No. 2 bevel gear 28 is fixedly sleeved on the end of the linkage shaft 24 away from the driving gear 23, the No. 2 bevel gear 28 is meshingly connected with a No. 1 bevel gear 27, and a linkage screw 21 is fixedly provided at the midpoint of one end of the No. 1 bevel gear 27 away from the No. 2 bevel gear 28.

[0041] Specifically, Figure 1-5 As shown, when taking and storing the mold, start the No. 1 motor 19 to first drive the driving screw 13 to rotate. Since the driving screw 13 is threadedly sleeved with the mounting seat 11, the guide rods 10 are rotatably arranged on both sides of the storage box 9 and are respectively slidably sleeved with the two ends of the mounting seat 11. The driving screw 13 rotates and penetrates the base 14. At this time, the driving screw 13 rotates and drives the mounting seat 11 to move upward and the inner box 15 to move upward. The inner box 15 is cylindrical and has a through hole 26 at the midpoint of the upper end surface. The center column 6 is penetrated in the through hole 26. A through slot 8 is provided at the midpoint of the upper end surface of the storage box 9. At this time, the inner box 15 will not be affected or disturbed by the center column 6 when moving upward.

[0042] When the inner box 15 moves upward, the inner driving gear 23 and the auxiliary gear 25 move upward together. Since the multiple driving gears 23 and the auxiliary gears 25 are divided into five layers and the total number of driving gears 23 and auxiliary gears 25 in each layer is twelve, the number of racks 7 is twelve, and the driving gears 23 and the auxiliary gears 25 located in the same layer are respectively meshed and connected with the racks 7 on the same vertical line. At this time, the driving gear 23 and the auxiliary gear 25 will rotate under the pushing effect of the rack 7. During the rotation of the driving gear 23, the linkage shaft 24 fixed at the midpoint of the rear end is driven to rotate synchronously. After the linkage shaft 24 drives the outer No. 2 bevel gear 28 to rotate, the No. 2 bevel gear 28 drives the meshed No. 1 bevel gear 27 to rotate, thereby realizing the synchronous rotation of the linkage screw 21 connected to the No. 1 bevel gear 27. Figure 4 , 5 As shown, although the arrangement of the driving gear 23 is circular, only a small part of the driving gear 23 protrudes outside, that is, the linkage shaft 24 is located inside the inner box 15. Although the linkage shaft 24 is a straight column, it does not affect its installation and use effect. Therefore, during the rotation of the driving gear 23, the rotation of the linkage shaft 24 and the second bevel gear 28 is still in a linkage state;

[0043] At this time, since the interior of the inner box 15 is divided into five layers and each layer is provided with six cavities 17 in an equidistant and circumferential shape, a plurality of cavities 17 are provided with a cabinet door 18 on one side of the outer wall of the inner box 15 and a label bag 16 is fixedly provided on the outer surface of the cabinet door 18, wherein the interior of the inner box 15 is divided into five upper and lower layers of space at equal intervals through five bottom plates 22, and the linkage screw 21 is located inside the cavity 17. A movable plate 20 is movably provided on the upper surface of the bottom plate 22 located at the bottom end surface of the plurality of cavities 17, and the movable plate 20 is threadedly sleeved with the linkage screw 21. A training mold is provided in each cavity 17, and the training molds in the cavities 17 in the same layer of space are the same type of molds.

[0044] It can be seen that when the linkage screw 21 rotates, the movable plate 20 with the outer thread sleeve is pushed outward. Since the movable plate 20 is slidably clamped in the cavity 17 and can only slide horizontally, the training mold placed on the upper end of the movable plate 20 will move outward with the movable plate 20. At the same time, the outer cabinet door 18 will be pushed open during the outward movement of the movable plate 20. At this time, the user can quickly open the cabinet door 18 to take out the training mold on the movable plate 20 for use;

[0045] Similarly, when the No. 1 motor 19 moves in the reverse direction to move the inner box 15 downward for storage, the training mold and the cabinet door 18 placed on the movable plate 20 will automatically be reset and stored, and the operation is simple and quick.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical orthodontic training device, comprising a training support (1) and a storage box (9), characterized in that: The training support (1) is fixedly arranged at the rear end of the storage box (9), two slide grooves (2) are provided on both sides of the upper end surface of the training support (1), and connecting plates (30) are slidably arranged in the four slide grooves (2), and the upper ends of the four connecting plates (30) are fixedly connected to the fixed frame (4), and the rear end surfaces of the four fixed frames (4) are threadedly penetrated and sleeved with adjusting screws (3) at the midpoint, and one end of the four adjusting screws (3) is rotatably connected to the extrusion plate (5) through a bearing, and the four connecting plates (30) are divided into a group of two, and the end of each group of connecting plates (30) away from the fixed frame (4) is respectively fixedly provided with a first linkage tooth plate (29) and a second linkage tooth plate (38); A first track frame (34) and a second track frame (37) are embedded on both sides of the upper end of the training support (1); a second motor (36) is fixedly arranged on one side of the outer wall of the two first track frames (34); and a threaded column (35) is fixedly arranged at the output end of the second motor (36); one of the first track frame (34) and the second track frame (37) is fixedly connected to the other by two fixing rods (39); and a connecting gear (31) is rotatably arranged at the midpoint of the first track frame (34) and the second track frame (37) on the opposite side by a rotating shaft (32); A base (14) is fixedly provided on the bottom end surface of the storage box (9) via two support plates (12); a mounting seat (11) is movably provided on the upper end of the base (14); an inner box (15) is embedded in the upper end surface of the mounting seat (11); a center column (6) is fixedly provided at the midpoint of the upper end surface of the mounting seat (11); a plurality of racks (7) are fixedly provided on the outer wall of the center column (6) at the upper end; a No. 1 motor (19) is embedded in the inner end of the center column (6) at the upper end; and an output end fixing sleeve of the No. 1 motor (19) is provided. A driving screw rod (13) is connected, and a plurality of driving gears (23) and auxiliary gears (25) are rotatably embedded inside the inner box (15). A linkage shaft (24) is fixedly arranged at the midpoint of one end of each of the plurality of driving gears (23), and a second bevel gear (28) is fixedly sleeved at one end of the linkage shaft (24) away from the driving gear (23). The second bevel gear (28) is meshingly connected with a first bevel gear (27), and a linkage screw rod (21) is fixedly arranged at the midpoint of one end of the first bevel gear (27) away from the second bevel gear (28).

2. A medical orthodontic training device according to claim 1, characterized in that: The inner box (15) is cylindrical and has a through hole (26) at the midpoint of its upper end surface. The center column (6) is arranged through the through hole (26). The storage box (9) has a through groove (8) at the midpoint of its upper end surface.

3. A medical orthodontic training device according to claim 1, characterized in that: The interior of the inner box (15) is divided into five layers, and each layer is provided with six cavities (17) at equal intervals and in a surrounding shape. A cabinet door (18) is rotatably provided on one side of the outer wall of the inner box (15), and a label bag (16) is fixedly provided on the outer surface of the cabinet door (18). The interior of the inner box (15) is divided into five upper and lower layers at equal intervals by five bottom plates (22), and the linkage screw (21) is located inside the cavity (17).

4. A medical orthodontic training device according to claim 3, characterized in that: A movable plate (20) is movably provided at the upper surface of the bottom plate (22) located at the bottom end surface of the plurality of cavities (17), and the movable plate (20) is threadably sleeved with the linkage screw rod (21).

5. A medical orthodontic training device according to claim 1, characterized in that: The driving screw rod (13) is threadedly sleeved with the mounting seat (11), and guide rods (10) are rotatably arranged on both sides of the interior of the storage box (9) and are respectively slidably sleeved with the two ends of the mounting seat (11), and the driving screw rod (13) is rotatably penetrated through the base (14).

6. A medical orthodontic training device according to claim 1, characterized in that: The threaded column (35) is threadedly sleeved with a No. 1 linkage tooth plate (29) located in a No. 1 track frame (34); the No. 1 linkage tooth plate (29) and the No. 2 linkage tooth plate (38) are both provided with connecting teeth on opposite sides, and the No. 1 linkage tooth plate (29) and the No. 2 linkage tooth plate (38) are meshedly connected with the connecting gear (31) through the connecting teeth on opposite sides, wherein the No. 1 linkage tooth plate (29) and the No. 2 linkage tooth plate (38) are arranged in a relatively staggered position, and the No. 1 track frame (34) and the No. 2 track frame (37) are both provided with a track groove (33) at the midpoint of the outer surface located at the lower end of the slide groove (2).

7. A medical orthodontic training device according to claim 3, characterized in that: A training mold is arranged in each of the cavities (17), and the training molds in the cavities (17) in the same layer of space are molds of the same type.

8. The medical orthodontic training device according to claim 1, characterized in that: The plurality of driving gears (23) and auxiliary gears (25) are divided into five layers, and the total number of driving gears (23) and auxiliary gears (25) in each layer is twelve. The number of racks (7) is twelve, and the driving gears (23) and auxiliary gears (25) located in the same layer are respectively meshed and connected with the racks (7) on the same vertical line.

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