Oral cavity teaching model

Abstract

The invention relates to the technical field of oral cavity teaching, in particular to an oral cavity teaching model. The tooth model comprises a lower gingival model strip and an upper gingival model strip assembled above the lower gingival model strip, and a plurality of mimicry tooth models are uniformly distributed and assembled on the top of the lower gingival model strip and the bottom of the upper gingival model strip. Through the structural design of the feedback mechanism and the anti-falling mechanism, the device is convenient for adjusting and positioning the position of the mimicry tooth model, and can simulate the pain sound according to the separation condition of the mimicry tooth model from the lower gingival model strip and the upper gingival model strip; through the structural design of the universal adjusting mechanism, the device can adjust various angles and directions of the mimicry tooth model, is beneficial to simulating the condition of the human teeth in a loose state, is simple in structure, is convenient to carry, and is convenient to use. The repeated use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of oral teaching, and in particular to an oral teaching model. Background Art

[0002] As an independent discipline, stomatology integrates the principles and technologies of modern biology, basic medicine, clinical medicine, engineering and many natural sciences, and focuses on the prevention and treatment of oral and maxillofacial diseases, reflecting its remarkable practicality, comprehensiveness and interdisciplinary nature. In the process of cultivating talents in stomatology, practical operation ability is crucial, because dentists need to directly treat real patients. Therefore, it is extremely important to use a simulated oral model for tooth extraction operations designed specifically for teaching, and to conduct exercises close to clinical practice.

[0003] The current teaching model structure includes a base, a wax dam and several plastic teeth. The wax dam is placed directly on the base, and the plastic teeth are embedded in the wax dam. The wax dam is softened by heating to adjust the position of the teeth. However, this model is limited by the material properties of wax. Other existing oral model products for teaching tooth extraction operations can simulate the tooth extraction process in the oral cavity, but the tooth model is mostly fixed by gluing, which not only limits the reusability of the model, but also easily causes the model to be damaged due to frequent use, thereby increasing the cost of use. For this reason, we propose an oral teaching model. Summary of the invention

[0004] The purpose of the present invention is to provide an oral teaching model to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An oral teaching model comprises a lower gum model strip, and an upper gum model strip mounted above the lower gum model strip, a plurality of simulated tooth models are evenly mounted on the top of the lower gum model strip and the bottom of the upper gum model strip, metal bending strips are fixed at both ends of the lower gum model strip, one end of the metal bending strips is fixed to the upper gum model strip, a matching feedback mechanism is mounted between the lower gum model strip, the upper gum model strip and the simulated tooth model, and the matching feedback mechanism is used to simulate the simulated connection and simulated separation between the lower gum model strip, the upper gum model strip and the simulated tooth model.

[0007] Preferably, the mating feedback mechanism includes a docking component and an auxiliary component, the top of the lower gum model strip and the bottom of the upper gum model strip are both provided with semi-annular openings corresponding to the positions of the simulated tooth models, the inner sides of the semi-annular openings are equipped with docking components, and the auxiliary component is installed between the docking component and the lower gum model strip.

[0008] Preferably, the docking assembly includes an inner track, a first movable plate, a second movable plate, a lower connecting tube and an upper connecting tube. The bottom of the semi-annular opening is provided with an inner track, the inner side of the semi-annular opening is slidably connected with the first movable plate, the first movable plate is assembled and connected to the mimic tooth model, the inner side of the inner track is equipped with a second movable plate, the second movable plate is transitionally matched with the inner track, the top of the second movable plate is threadedly connected with the lower connecting tube, the top of the lower connecting tube is slidably connected with the upper connecting tube, and the upper connecting tube is threadedly connected to the first movable plate.

[0009] Preferably, the docking assembly also includes a limiting elastic ring, a first positioning seat, a first internal connecting column, a first connecting spring, a docking head, a second positioning seat, a second internal connecting column, a second connecting spring and a sealing piece, the inner sides of the lower connecting tube and the upper connecting tube are both clamped with the limiting elastic ring, one side of the two limiting elastic rings are respectively in contact with the first positioning seat and the second positioning seat, the top of the first positioning seat is fixed with the first internal connecting column, the outer side of the first internal connecting column is sleeved with the first connecting spring, the bottom of the first connecting spring is fixed to the first positioning seat, the top of the first connecting spring is fixed with the docking head, the docking head is slidably connected to the first internal connecting column, the bottom of the second positioning seat is fixed with the second internal connecting column, the outer side of the second internal connecting column is sleeved with the second connecting spring, the bottom of the second connecting spring is fixed with the sealing piece, and the sealing piece is slidably connected to the second internal connecting column.

[0010] Preferably, the auxiliary component includes a pressure sensor, a pressure-applying rubber head, a sound simulator and a microcontroller, the pressure sensor is fixed to the top of the docking joint, the pressure-applying rubber head is fixed to the bottom of the blocking piece, the sound simulator is fixed to one side of the lower gum model strip, and the microcontroller is fixed to the top of one end of the lower gum model strip, and the microcontroller is electrically connected to the sound simulator and the pressure sensor through a wire.

[0011] Preferably, the outer sides of the lower connecting tube and the upper connecting tube are equipped with anti-falling mechanisms, and the anti-falling mechanisms are used to assist in the stable connection between the lower connecting tube and the upper connecting tube.

[0012] Preferably, the anti-falling mechanism includes a docking part, a limiting bead, a force-applying movable sleeve, a rubber ring and a matching gap opening; the docking part is integrally fixed to the top of the lower connecting tube; a plurality of spherical through holes are evenly distributed on the inner side of the docking part; limiting beads are arranged on the inner sides of the spherical through holes; the limiting beads match the size of the spherical through holes; the outer side of the lower connecting tube is slidably connected with a force-applying movable sleeve; a rubber ring is arranged on the inner side of the docking part; a matching gap opening is arranged in the area between the force-applying movable sleeve and the docking part; a reset metal spring is passed through the inner side of the matching gap opening; one end of the metal spring is fixed to the force-applying movable sleeve, and the other end of the metal spring is fixed to the docking part.

[0013] Preferably, a universal adjustment mechanism is installed between the simulated tooth model and the first movable plate, and the universal adjustment mechanism is used to simulate the looseness of the simulated tooth model on the lower gum model strip and the upper gum model strip.

[0014] Preferably, the universal adjustment mechanism includes a connecting and fixing ball, a spherical shell, a receiving groove, a reset spring, a matching movable ball and a spherical depression. A connecting and fixing ball is fixed to the top of the first movable plate, a spherical shell is sleeved on the outer side of the connecting and fixing ball, the spherical shell is fixed to the inner side of the simulated tooth model, a receiving groove is provided at the top of the inner side of the spherical shell, a reset spring is fixed to the top of the inner side of the receiving groove, a matching movable ball is fixed to the bottom of the reset spring, the matching movable ball is slidably connected to the receiving groove, a plurality of spherical depressions are evenly distributed on the outer side of the connecting and fixing ball, and the spherical depressions are slidably connected to the matching movable ball.

[0015] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0016] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0017] 1. The present invention uses a structural design with a feedback mechanism and an anti-falling mechanism to facilitate the device to adjust and position the simulated tooth model. At the same time, it can simulate the sound of pain according to the separation status of the simulated tooth model and the lower gum model strip and the upper gum model strip, so as to assist in understanding the relationship between human teeth and gums and improve the flexibility of the device.

[0018] 2. The present invention adopts the structural design of the universal adjustment mechanism, so that the device can adjust various angles and orientations of the simulated tooth model, which is conducive to simulating the condition of human teeth in a loose state. At the same time, the structure is simple, easy to carry and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure between the lower gum model strip and the simulated tooth model of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection structure between the second movable plate and the lower connecting tube of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-section structure of the lower connecting tube and the upper connecting tube of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection structure between the limiting elastic ring and the second positioning seat of the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure of the first movable plate and the connection fixing ball of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-section structure of the spherical shell of the present invention;

[0027] Figure 8 It is a schematic diagram of the connection structure between the storage slot and the matching movable ball of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] In the figure: 1. lower gum model strip; 2. upper gum model strip; 3. simulated tooth model; 4. metal bending strip; 5. semi-annular mouth; 6. inner track; 7. first movable plate; 8. second movable plate; 9. lower connecting tube; 10. upper connecting tube; 11. limiting elastic ring; 12. first positioning seat; 13. first internal column; 14. first connecting spring; 15. docking head; 16. pressure sensor; 17. second positioning seat; 18. second internal column; 19. second connecting spring; 20. blocking piece; 21. pressure-applying rubber head; 22. docking part; 23. limiting bead; 24. force-applying movable sleeve; 25. rubber ring; 26. matching gap mouth; 27. connecting fixed ball; 28. spherical shell; 29. ​​storage groove; 30. reset spring; 31. matching movable ball; 32. spherical depression; 33. sound simulator; 34. microcontroller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Example 1

[0032] Reference Figure 1-5 , an oral teaching model, including a lower gum model strip 1, and an upper gum model strip 2 assembled on the lower gum model strip 1, the top of the lower gum model strip 1 and the bottom of the upper gum model strip 2 are evenly equipped with multiple simulated tooth models 3, both ends of the lower gum model strip 1 are fixed with metal bending strips 4, one end of the metal bending strip 4 is fixed to the upper gum model strip 2, and a matching feedback mechanism is assembled between the lower gum model strip 1, the upper gum model strip 2 and the simulated tooth model 3, and the matching feedback mechanism is used to simulate the simulated connection and simulated separation between the lower gum model strip 1, the upper gum model strip 2 and the simulated tooth model 3. In the later oral teaching process, students will be exposed to a series of in-depth and practical learning contents, one of which is to carefully operate and study the simulated tooth model. In order to help students better understand the tooth structure, arrangement rules and the formulation of treatment plans, they can independently arrange the number of these highly simulated simulated tooth models 3 step by step. This process is not just a simple physical placement, but requires students to arrange these models scientifically and reasonably based on the knowledge they have learned, such as the growth order of teeth, occlusion relationship, and the characteristics of tooth development in people of different ages. Through such exercises, students can not only deepen their understanding of basic theories such as oral anatomy, physiology and pathology, but also improve their spatial imagination, logical thinking ability and practical skills in practice, laying a solid foundation for becoming an excellent dentist in the future.

[0033] The matching feedback mechanism includes a docking component and an auxiliary component. The top of the lower gum model strip 1 and the bottom of the upper gum model strip 2 are both provided with a semi-annular opening 5 corresponding to the position of the simulated tooth model 3. The inner side of the semi-annular opening 5 is equipped with a docking component, and an auxiliary component is installed between the docking component and the lower gum model strip 1.

[0034] The docking assembly includes an inner track 6, a first movable plate 7, a second movable plate 8, a lower connecting tube 9 and an upper connecting tube 10. The bottom of the semi-annular mouth 5 is provided with an inner track 6, and the inner side of the semi-annular mouth 5 is slidably connected with the first movable plate 7, the first movable plate 7 is assembled and connected with the simulated tooth model 3, the inner side of the inner track 6 is equipped with the second movable plate 8, the second movable plate 8 is transitionally matched with the inner track 6, the top of the second movable plate 8 is threadedly connected with the lower connecting tube 9, the top of the lower connecting tube 9 is slidably connected with the upper connecting tube 10, and the upper connecting tube 10 is threadedly connected with the first movable plate 7. In the specific implementation process, the inner side of the inner track 6 is provided with an iron lining, and the inner side of the second movable plate 8 is provided with a magnet, so as to increase the connection stability between the inner track 6 and the second movable plate 8.

[0035] The docking assembly also includes a limiting elastic ring 11, a first positioning seat 12, a first internal connection column 13, a first connecting spring 14, a docking head 15, a second positioning seat 17, a second internal connection column 18, a second connecting spring 19 and a blocking piece 20. The inner sides of the lower connecting tube 9 and the upper connecting tube 10 are both clamped with the limiting elastic ring 11, and one side of the two limiting elastic rings 11 is respectively in contact with the first positioning seat 12 and the second positioning seat 17. The top of the first positioning seat 12 is fixed with the first internal connection column 13, and the outer side of the first internal connection column 13 is sleeved with the first connecting spring 14. The bottom of the first connecting spring 14 is in contact with the first The positioning seat 12 is fixed, and a docking joint 15 is fixed on the top of the first connecting spring 14, and the docking joint 15 is slidably connected to the first internal column 13. A second internal column 18 is fixed to the bottom of the second positioning seat 17, and a second connecting spring 19 is sleeved on the outer side of the second internal column 18. A sealing piece 20 is fixed to the bottom of the second connecting spring 19, and the sealing piece 20 is slidably connected to the second internal column 18. There is a gap between the sealing piece 20 and the pressure-applying rubber head 21, which is convenient for increasing the deformation amplitude of the pressure-applying rubber head 21 when it contacts the pressure sensor 16, and can provide buffering protection for the pressure sensor 16.

[0036] The auxiliary components include a pressure sensor 16, a pressure-applying rubber head 21, a sound simulator 33 and a microcontroller 34. The pressure sensor 16 is fixed to the top of the joint 15, the pressure-applying rubber head 21 is fixed to the bottom of the blocking piece 20, the sound simulator 33 is fixed to one side of the lower gum model strip 1, and the microcontroller 34 is fixed to the top of one end of the lower gum model strip 1. The microcontroller 34 is electrically connected to the sound simulator 33 and the pressure sensor 16 through a wire. The pressure threshold of the pressure sensor 16 is set by the microcontroller 34. When the pressure reaches the threshold, the pressure sensor 16 transmits a signal to the microcontroller 34, and the microcontroller 34 processes the signal and sends a sound simulating human pain to the sound simulator 33.

[0037] The outer sides of the lower connecting tube 9 and the upper connecting tube 10 are equipped with anti-dropping mechanisms, which are used to assist in the stable connection between the lower connecting tube 9 and the upper connecting tube 10 .

[0038] The anti-falling mechanism includes a docking portion 22, a limiting bead 23, a force-applying sleeve 24, a rubber ring 25 and a matching gap opening 26. The top of the lower connecting tube 9 is integrally fixed with the docking portion 22, and a plurality of spherical through holes are evenly distributed on the inner side of the docking portion 22. The inner sides of the spherical through holes are all provided with limiting beads 23, and the limiting beads 23 match the size of the spherical through holes. The outer side of the lower connecting tube 9 is slidably connected with a force-applying sleeve 24, and a rubber ring 25 is provided on the inner side of the docking portion 22. The area between the force-applying sleeve 24 and the docking portion 22 is provided with a matching gap opening 26, and a reset metal spring is penetrated on the inner side of the matching gap opening 26. One end of the metal spring is fixed to the force-applying sleeve 24, and the other end of the metal spring is fixed to the docking portion 22. When the force-applying sleeve 24 is pressed, the force-applying sleeve 24 compresses the reset metal spring to produce deformation, thereby releasing the limit on the limiting beads 23, making it convenient for the user to separate the upper connecting tube 10 from the lower connecting tube 9.

[0039] Example 2

[0040] Embodiment 1 is further optimized, specifically, as Figure 6-8 As shown, a universal adjustment mechanism is installed between the simulated tooth model 3 and the first movable plate 7 , and the universal adjustment mechanism is used to simulate the looseness of the simulated tooth model 3 on the lower gum model strip 1 and the upper gum model strip 2 .

[0041] The universal adjustment mechanism includes a connecting and fixing ball 27, a spherical shell 28, a receiving groove 29, a reset spring 30, a matching movable ball 31 and a spherical recess 32. The top of the first movable plate 7 is fixed with a connecting and fixing ball 27, the outer side of the connecting and fixing ball 27 is sleeved with a spherical shell 28, the spherical shell 28 is fixed to the inner side of the simulated tooth model 3, the top of the inner side of the spherical shell 28 is provided with a receiving groove 29, the top of the inner side of the receiving groove 29 is fixed with a reset spring 30, the bottom of the reset spring 30 is fixed with a matching movable ball 31, the matching movable ball 31 is slidably connected to the receiving groove 29, the outer side of the connecting and fixing ball 27 is evenly provided with a plurality of spherical recesses 32, the spherical recesses 32 are slidably connected to the matching movable ball 31, when it is necessary to simulate the loose and active state of the simulated tooth model 3, the simulated tooth model is shaken. 3, so that the simulated tooth model 3 drives the spherical shell 28 to move along the outer side of the connecting and fixing ball 27, because the connecting and fixing ball 27 is in ball connection with the spherical shell 28, the matching movable ball 31 is slidably connected with the spherical recess 32, the matching movable ball 31 is fixed with the reset spring 30, one end of the reset spring 30 is fixed with the receiving groove 29, and the receiving groove 29 is slidably connected with the matching movable ball 31, so when the simulated tooth model 3 is shaken, the matching movable ball 31 is pushed by the connecting and fixing ball 27 to shrink into the receiving groove 29, at which time the reset spring 30 is in a compressed state, and when the shaking is completed, the matching movable ball 31 enters the corresponding spherical recess 32, at which time the reset spring 30 resets and pushes the matching movable ball 31 to connect with the inner side of the spherical recess 32, thereby completing the orientation and angle positioning of the simulated tooth model 3.

[0042] From the above, we can know that:

[0043] The present invention is directed to the following technical problem: the current teaching model structure includes a base, a wax dam and a plurality of plastic teeth. The wax dam is directly placed on the base, and the plastic teeth are embedded in the wax dam. The wax dam is softened by heating, thereby adjusting the position of the teeth therein. However, this model is limited by the material properties of the wax, and other existing tooth extraction operation teaching simulation oral model products, although they can simulate the tooth extraction process in the oral cavity, mostly use gluing to fix the tooth model, which not only limits the reusability of the model, but also easily causes the model to be damaged due to frequent use, thereby increasing the cost of use; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solution is:

[0044] During use, when the position of the simulated tooth model 3 needs to be adjusted, the simulated tooth model 3 is pushed so that the simulated tooth model 3 drives the first movable plate 7 to move along the inner side of the semi-annular mouth 5. Because there is friction resistance between the transition fit between the second movable plate 8 and the inner track 6, after the position of the simulated tooth model 3 is adjusted, the simulated tooth model 3 can be positioned. At this time, the distance between two adjacent simulated tooth models 3 is determined to simulate the gap between human teeth.

[0045] When it is necessary to simulate the loose state between the simulated tooth model 3 and the lower gum model strip 1 and the upper gum model strip 2, the pressure threshold of the pressure sensor 16 is first set by the microcontroller 34, and the first threshold and the second threshold are given. Then, the force-applying movable sleeve 24 is pressed down with medical forceps, so that the force-applying movable sleeve 24 squeezes the reset metal spring to contract. At this time, the circumferential limit of the limiting bead 23 is released, and then the simulated tooth model 3 is pulled upward, so that the simulated tooth model 3 drives the upper connecting tube 10 to move upward through the first movable plate 7, thereby reducing the pressure of the force-applying movable sleeve 24 on the pressure sensor 16. When the pressure reaches the first threshold, the pressure sensor 16 transmits a signal to the microcontroller 34, and the microcontroller 34 processes the signal and sends a sound simulating a slight pain of a human to the sound simulator 33; when the pressure reaches the second threshold, the pressure sensor 16 transmits a signal to the microcontroller 34, and the microcontroller 34 processes the signal and sends a sound simulating a severe pain of a human to the sound simulator 33, so as to achieve the purpose of simulation teaching.

[0046] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0047] 1. The present invention uses a structural design with a feedback mechanism and an anti-falling mechanism to facilitate the device to adjust and position the simulated tooth model 3. At the same time, it can simulate the sound of pain according to the separation status of the simulated tooth model 3 and the lower gum model strip 1 and the upper gum model strip 2, so as to assist in understanding the relationship between human teeth and gums and improve the flexibility of the device.

[0048] 2. The present invention adopts the structural design of the universal adjustment mechanism, so that the device can adjust various angles and orientations of the simulated tooth model 3, which is conducive to simulating the condition of human teeth in a loose state. At the same time, the structure is simple, easy to carry and reuse.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. An oral teaching model, characterized in that: The invention comprises a lower gum model strip (1), and an upper gum model strip (2) mounted on the upper part of the lower gum model strip (1); a plurality of simulated tooth models (3) are evenly distributed on the top of the lower gum model strip (1) and the bottom of the upper gum model strip (2); metal bending strips (4) are fixed at both ends of the lower gum model strip (1); one end of the metal bending strip (4) is fixed to the upper gum model strip (2); a matching feedback mechanism is mounted between the lower gum model strip (1), the upper gum model strip (2) and the simulated tooth model (3); the matching feedback mechanism is used to simulate the simulated connection and simulated separation between the lower gum model strip (1), the upper gum model strip (2) and the simulated tooth model (3).

2. An oral teaching model according to claim 1, characterized in that: The matching feedback mechanism comprises a docking component and an auxiliary component. The top of the lower gum model strip (1) and the bottom of the upper gum model strip (2) are both provided with a semi-annular opening (5) corresponding to the position of the simulated tooth model (3). The inner side of the semi-annular opening (5) is equipped with a docking component, and the auxiliary component is installed between the docking component and the lower gum model strip (1).

3. An oral teaching model according to claim 2, characterized in that: The docking assembly comprises an inner track (6), a first movable plate (7), a second movable plate (8), a lower connecting tube (9) and an upper connecting tube (10); the inner track (6) is provided at the bottom of the semi-annular opening (5); the first movable plate (7) is slidably connected to the inner side of the semi-annular opening (5); the first movable plate (7) is assembled and connected to the simulated tooth model (3); the second movable plate (8) is assembled on the inner side of the inner track (6); the second movable plate (8) is transitionally matched with the inner track (6); the top of the second movable plate (8) is threadedly connected to the lower connecting tube (9); the top of the lower connecting tube (9) is slidably connected to the upper connecting tube (10); the upper connecting tube (10) is threadedly connected to the first movable plate (7).

4. An oral teaching model according to claim 3, characterized in that: The docking assembly further comprises a limiting elastic ring (11), a first positioning seat (12), a first internally connected column (13), a first connecting spring (14), a docking head (15), a second positioning seat (17), a second internally connected column (18), a second connecting spring (19) and a blocking piece (20); the inner sides of the lower connecting tube (9) and the upper connecting tube (10) are both clamped with the limiting elastic ring (11); one side of the two limiting elastic rings (11) is respectively in contact with the first positioning seat (12) and the second positioning seat (17); the top of the first positioning seat (12) is fixed with the first internally connected column (13); the first A first connecting spring (14) is sleeved on the outer side of the inner connecting column (13); the bottom of the first connecting spring (14) is fixed to the first positioning seat (12); a docking joint (15) is fixed to the top of the first connecting spring (14); the docking joint (15) is slidably connected to the first inner connecting column (13); a second inner connecting column (18) is fixed to the bottom of the second positioning seat (17); a second connecting spring (19) is sleeved on the outer side of the second inner connecting column (18); a sealing plate (20) is fixed to the bottom of the second connecting spring (19); the sealing plate (20) is slidably connected to the second inner connecting column (18).

5. An oral teaching model according to claim 4, characterized in that: The auxiliary component comprises a pressure sensor (16), a pressure-applying rubber head (21), a sound simulator (33) and a microcontroller (34); the pressure sensor (16) is fixed to the top of the docking joint (15); the pressure-applying rubber head (21) is fixed to the bottom of the blocking piece (20); the sound simulator (33) is fixed to one side of the lower gum model strip (1); the microcontroller (34) is fixed to the top of one end of the lower gum model strip (1); and the microcontroller (34) is electrically connected to the sound simulator (33) and the pressure sensor (16) via a wire.

6. The oral teaching model according to claim 3, characterized in that: The outer sides of the lower connecting tube (9) and the upper connecting tube (10) are equipped with anti-dropping mechanisms, and the anti-dropping mechanisms are used to assist in the stable connection between the lower connecting tube (9) and the upper connecting tube (10).

7. An oral teaching model according to claim 6, characterized in that: The anti-falling mechanism comprises a docking portion (22), a limiting bead (23), a force-applying sleeve (24), a rubber ring (25) and a matching gap opening (26); the docking portion (22) is integrally fixed to the top of the lower connecting tube (9); a plurality of spherical through holes are evenly distributed on the inner side of the docking portion (22); limiting beads (23) are arranged on the inner sides of the spherical through holes; the limiting beads (23) are matched with the size of the spherical through holes; the outer side of the lower connecting tube (9) is slidably connected with a force-applying sleeve (24); a rubber ring (25) is arranged on the inner side of the docking portion (22); a matching gap opening (26) is arranged in the area between the force-applying sleeve (24) and the docking portion (22); a reset metal spring is passed through the inner side of the matching gap opening (26); one end of the metal spring is fixed to the force-applying sleeve (24); and the other end of the metal spring is fixed to the docking portion (22).

8. The oral teaching model according to claim 3, characterized in that: A universal adjustment mechanism is installed between the simulated tooth model (3) and the first movable plate (7), and the universal adjustment mechanism is used to simulate the loosening of the simulated tooth model (3) on the lower gum model strip (1) and the upper gum model strip (2).

9. An oral teaching model according to claim 8, characterized in that: The universal adjustment mechanism comprises a connecting and fixing ball (27), a spherical shell (28), a receiving groove (29), a reset spring (30), a matching movable ball (31) and a spherical recess (32). The top of the first movable plate (7) is fixed with a connecting and fixing ball (27). The outer side of the connecting and fixing ball (27) is sleeved with a spherical shell (28). The spherical shell (28) is fixed to the inner side of the simulated tooth model (3). The top of the inner side of the spherical shell (28) is provided with a receiving groove (29). The top of the inner side of the receiving groove (29) is fixed with a reset spring (30). The bottom of the reset spring (30) is fixed with a matching movable ball (31). The matching movable ball (31) is slidably connected to the receiving groove (29). The outer side of the connecting and fixing ball (27) is evenly provided with a plurality of spherical recesses (32). The spherical recesses (32) are slidably connected to the matching movable ball (31).

Images