CN113436516A - Ear-nose-throat teaching mould - Google Patents

Ear-nose-throat teaching mould Download PDF

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Publication number
CN113436516A
CN113436516A CN202110841823.7A CN202110841823A CN113436516A CN 113436516 A CN113436516 A CN 113436516A CN 202110841823 A CN202110841823 A CN 202110841823A CN 113436516 A CN113436516 A CN 113436516A
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China
Prior art keywords
groove
model
reversing gear
gear
rod
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Granted
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CN202110841823.7A
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Chinese (zh)
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CN113436516B (en
Inventor
范宇琴
梁冰
吴皓
王珮华
张治华
王振涛
汪照炎
黄治物
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Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
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Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
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Priority to CN202110841823.7A priority Critical patent/CN113436516B/en
Publication of CN113436516A publication Critical patent/CN113436516A/en
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Publication of CN113436516B publication Critical patent/CN113436516B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine

Abstract

The invention relates to an ear-nose-throat teaching mold which comprises a containing box, wherein supporting legs are fixed at four corners of the bottom of the containing box, a containing groove is formed in the containing box, and a sliding seat is fixed at the bottom of the containing groove. This ear-nose-throat teaching mould, when needing to exhibition or accomodate the skull model, the twist grip, the handle drives two lead screws and rotates simultaneously through first gear and cingulums, make the lead screw drive the first slider in both sides and be close to each other or keep away from, when first slider is close to each other, first slider drives the lift seat rebound through first transfer line, make the lift seat drive the skull model shift out the containing box and exhibition, when first slider keeps away from each other, first slider drives the lift seat rebound through first transfer line, make the lift seat drive the inside that the skull model got into the containing box, be convenient for demonstrate or accomodate the skull model, can protect the skull model through the containing box, avoid the skull model to receive the damage.

Description

Ear-nose-throat teaching mould
Technical Field
The invention relates to the technical field of ear-nose-throat teaching, in particular to an ear-nose-throat teaching mold.
Background
The ear-nose-throat comprises ear parts, nose parts, throat parts and the like, is some parts which are easy to cause diseases of human bodies, is the most easy disease which is puzzled and influences normal work and life of people, can not be treated timely, and easily causes the diseases of various other complications, and needs to use an ear-nose-throat teaching mold when teaching the ear-nose-throat.
Current otolaryngology teaching mould is when using, and inconvenient demonstrates or accomodate otolaryngology teaching mould, when moving otolaryngology teaching mould, causes the damage to otolaryngology teaching mould easily, and inconvenient accomodating otolaryngology teaching mould and protecting it, inconvenient use so we have proposed an otolaryngology teaching mould to in the solution of the problem that proposes.
Disclosure of Invention
The invention aims to provide an ear-nose-throat teaching mold, which solves the problems that the existing ear-nose-throat teaching mold proposed by the background technology is inconvenient to display or store when in use, is easy to damage when moving, is inconvenient to store and protect and is inconvenient to use.
In order to achieve the purpose, the invention provides the following technical scheme: an ear-nose-throat teaching mould comprises a containing box, wherein supporting legs are fixed at four corners of the bottom of the containing box, a containing groove is formed in the containing box, a sliding seat is fixed at the bottom of the containing groove, wherein,
a lifting seat is arranged above the sliding seat, the sliding seat drives the lifting seat to lift through a lifting mechanism, an open slot is formed in the top of the containing box, a sealing cover groove is formed in the top, close to the open slot, of the containing box, sealing covers are symmetrically and rotatably connected inside the sealing cover groove, the lifting seat drives the sealing covers to open or close through a first transmission mechanism, a skull model is installed in the middle of the top end of the lifting seat, a first model groove is formed in an ear portion of the skull model, an ear portion section model is arranged inside the first model groove, a second model groove is formed in the nose portion of the skull model, and a nose portion section model is arranged inside the second model groove;
a third model groove is formed in the throat part of the skull model, a throat section model is arranged inside the third model groove, the middle part of the skull model is rotatably connected with a rotating rod, a first transmission groove is formed in the skull model corresponding to the first model groove and the second model groove, a first reversing gear is fixed at the top of the rotating rod in the first transmission groove, one side of the first transmission groove close to the first reversing gear is connected with a second reversing gear in a meshed mode, two ends of the second reversing gear are fixed with first screw rods, the first screw rods are in threaded connection with the ear section model, the other side of the first reversing gear is connected with a third reversing gear in a meshed mode, and a second screw rod is fixed at one side of the third reversing gear close to the second model groove;
the second screw rod is connected with the nasal section model in a meshed mode, a second transmission groove is formed in the skull model corresponding to the inside of the third mold groove, a fourth reversing gear is fixed on the outer side, located in the second transmission groove, of the rotating rod, a fifth reversing gear is connected to one side of the fourth reversing gear in a meshed mode, a third screw rod is fixed on one side, close to the third mold groove, of the fifth reversing gear, the third screw rod is connected with the throat section model in a threaded mode, a sixth reversing gear is fixed to the bottom of the rotating rod, guide grooves are formed in two sides of the lifting seat, a guide rod penetrates through the inside of each guide groove, and the guide rod drives the sixth reversing gear to rotate through a second transmission mechanism.
Preferably, first spout has been seted up to the top bilateral symmetry of sliding seat, the inside of first spout is provided with first slider, the lead screw has been run through with the inside of first spout to first slider, the outside that the lead screw is close to the containing box is fixed with first gear, the one end that the lead screw was kept away from to first gear is fixed with the handle, the cover has the cingulum between the first gear, the top of first slider is rotated and is connected with first transfer line, the top of first transfer line is rotated with the bottom of lift seat and is connected.
Preferably, two sections of external threads are arranged on the screw rod, the two sections of external threads of the screw rod are respectively positioned in the first sliding grooves on the two sides, and the grains of the two sections of external threads of the screw rod are opposite.
Preferably, a second sliding groove is formed in the bottom of the sealing cover, a second sliding block is arranged inside the second sliding groove, a second transmission rod is rotatably connected to the bottom of the second sliding block, and the bottom of the second transmission rod is rotatably connected with the top of the lifting seat.
Preferably, the second sliding block and the second sliding groove are T-shaped, and the size of the second sliding block is matched with that of the second sliding groove.
Preferably, the guide rod is rectangular column-shaped, the size of the guide rod is matched with that of the guide groove, and the guide rod and the guide groove form a guide structure.
Preferably, the top of the guide rod is fixedly connected with the top of the inner side of the containing box, and the bottom of the guide rod is fixedly connected with the top of the sliding seat.
Preferably, one of them side equidistance is fixed with the driving tooth in the guide bar, the bottom that the lift seat is close to sixth reversing gear is rotated and is connected with seventh reversing gear, one side that seventh reversing gear is close to the driving tooth is fixed with the second gear.
Preferably, the second gear is at the same pitch as the gear teeth, and the second gear is meshed with the gear teeth.
Compared with the prior art, the invention has the beneficial effects that:
1. this ear-nose-throat teaching mould, when needing to exhibition or accomodate the skull model, the twist grip, the handle drives two lead screws and rotates simultaneously through first gear and cingulums, make the lead screw drive the first slider in both sides and be close to each other or keep away from, when first slider is close to each other, first slider drives the lift seat rebound through first transfer line, make the lift seat drive the skull model shift out the containing box and exhibition, when first slider keeps away from each other, first slider drives the lift seat rebound through first transfer line, make the lift seat drive the inside that the skull model got into the containing box, be convenient for demonstrate or accomodate the skull model, can protect the skull model through the containing box, avoid the skull model to receive the damage.
2. This ear-nose-throat teaching mould, when lift seat drove the skull model and shifted out the containing box and exhibition, the lift seat drove sealed lid through the second transfer line and rotates, makes sealed lid expand to both sides, is convenient for drive sealed lid through first drive mechanism and open automatically when the skull model rebound, when the lift seat drove the skull model and removes downwards, the lift seat drove sealed lid antiport through the second transfer line, can make sealed lid closed automatically when accomodating the skull model.
3. When the lifting seat drives the skull model to move upwards, the second gear and the transmission gear move relatively, the transmission gear drives the second gear to rotate, the second gear drives the sixth reversing gear to rotate through the seventh reversing gear, the sixth reversing gear drives the rotating rod to rotate, the rotating rod drives the first reversing gear and the fourth reversing gear to rotate, the first reversing gear drives the first screw rod to rotate through the second reversing gear, the first reversing gear drives the second screw rod to rotate through the third reversing gear, the fourth reversing gear drives the third screw rod to rotate through the fifth reversing gear, the first screw rod, the second screw rod and the third screw rod respectively drive the ear section model, the nose section model and the throat section model to move towards the outer side of the skull model, and the ear section model, the nose section model, the throat section model and the throat section model are convenient to move upwards to display while the skull model moves upwards The nose section model and the throat section model are automatically opened.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a skull model in elevation section;
FIG. 3 is a schematic side view cross-sectional structure of a skull model of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1A;
fig. 5 is a schematic perspective view of the sliding seat and the lifting seat of the present invention.
In the figure: 1. a storage box; 2. a support leg; 3. a receiving groove; 4. a sliding seat; 5. a lifting seat; 6. a first chute; 7. a first slider; 8. a screw rod; 9. a first gear; 10. a handle; 11. a toothed belt; 12. a first drive lever; 13. an open slot; 14. a sealing cover groove; 15. a sealing cover; 16. a second chute; 17. a second slider; 18. a second transmission rod; 19. a skull model; 20. a first mold groove; 21. an ear section model; 22. a second mold groove; 23. a nose section model; 24. a third mold groove; 25. a throat section model; 26. rotating the rod; 27. a first transmission groove; 28. a first reversing gear; 29. a second reversing gear; 30. a first screw; 31. a third reversing gear; 32. a second screw; 33. a second transmission groove; 34. a fourth reversing gear; 35. a fifth reversing gear; 36. a third screw; 37. a sixth reversing gear; 38. a guide groove; 39. a guide bar; 40. a transmission gear; 41. a seventh reversing gear; 42. a second gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a mould for ear-nose-throat teaching comprises a containing box 1, supporting legs 2, a containing groove 3, a sliding seat 4, a lifting seat 5, a first sliding groove 6, a first sliding block 7, a screw rod 8, a first gear 9, a handle 10, a toothed belt 11, a first transmission rod 12, an open groove 13, a sealing cover groove 14, a sealing cover 15, a second sliding groove 16, a second sliding block 17, a second transmission rod 18, a skull model 19, a first model groove 20, an ear section model 21, a second model groove 22, a nose section model 23, a third model groove 24, a throat section model 25, a rotating rod 26, a first transmission groove 27, a first reversing gear 28, a second reversing gear 29, a first screw rod 30, a third reversing gear 31, a second screw rod 32, a second transmission groove 33, a fourth reversing gear 34, a fifth reversing gear 35, a third screw rod 36, a sixth reversing gear 37, a guide groove 38, a guide rod 39, teeth 40, A seventh reversing gear 41 and a second gear 42, wherein the four corners of the bottom of the containing box 1 are fixed with the supporting legs 2, the containing groove 3 is arranged in the containing box 1, the bottom of the containing groove 3 is fixed with the sliding seat 4, wherein,
a lifting seat 5 is arranged above the sliding seat 4, the sliding seat 4 drives the lifting seat 5 to lift through a lifting mechanism, first sliding grooves 6 are symmetrically formed in two sides of the top of the sliding seat 4, a first sliding block 7 is arranged inside the first sliding grooves 6, a screw rod 8 penetrates through the first sliding block 7 and the first sliding grooves 6, a first gear 9 is fixed on the outer side of the screw rod 8 close to the containing box 1, a handle 10 is fixed at one end of the first gear 9 far away from the screw rod 8, a toothed belt 11 is sleeved between the first gears 9, a first transmission rod 12 is rotatably connected to the top of the first sliding block 7, the top of the first transmission rod 12 is rotatably connected with the bottom of the lifting seat 5, two sections of external threads are arranged on the screw rod 8, the two sections of external threads of the screw rod 8 are respectively located inside the first sliding grooves 6 on two sides, and the grains of the two sections of the external threads of the screw rod 8 are opposite, when the skull model 19 needs to be displayed or stored, the handle 10 is rotated, the handle 10 drives the two screw rods 8 to rotate simultaneously through the first gear 9 and the toothed belt 11, so that the screw rods 8 drive the first slide blocks 7 on the two sides to approach or keep away from each other, when the first slide blocks 7 approach each other, the first slide blocks 7 drive the lifting seat 5 to move upwards through the first transmission rods 12, so that the lifting seat 5 drives the skull model 19 to move out of the storage box 1 for displaying, when the first slide blocks 7 keep away from each other, the first slide blocks 7 drive the lifting seat 5 to move downwards through the first transmission rods 12, so that the lifting seat 5 drives the skull model 19 to enter the interior of the storage box 1, the skull model 19 is conveniently displayed or stored, the skull model 19 can be protected through the storage box 1, and the skull model 19 is prevented from being damaged.
The top of the containing box 1 is provided with an open slot 13, the top of the containing box 1 close to the open slot 13 is provided with a sealing cover slot 14, the inside of the sealing cover slot 14 is symmetrically and rotatably connected with a sealing cover 15, the lifting seat 5 drives the sealing cover 15 to open or close through a first transmission mechanism, the bottom of the sealing cover 15 is provided with a second sliding slot 16, the inside of the second sliding slot 16 is provided with a second sliding block 17, the bottom of the second sliding block 17 is rotatably connected with a second transmission rod 18, the bottom of the second transmission rod 18 is rotatably connected with the top of the lifting seat 5, the second sliding block 17 and the second sliding slot 16 are in a T shape, the size of the second sliding block 17 is matched with that of the second sliding slot 16, when the lifting seat 5 drives the skull model 19 to move out of the containing box 1 for unfolding, the lifting seat 5 drives the sealing cover 15 to rotate through the second transmission rod 18, so that the sealing cover 15 is unfolded towards two sides, the sealing cover 15 is driven to be automatically opened through the first transmission mechanism while the skull model 19 moves upwards, when the lifting seat 5 drives the skull model 19 to move downwards, the lifting seat 5 drives the sealing cover 15 to rotate reversely through the second transmission rod 18, and the sealing cover 15 can be automatically closed when the skull model 19 is stored;
a skull model 19 is installed in the middle of the top end of the lifting seat 5, a first model groove 20 is formed in an ear part of the skull model 19, an ear section model 21 is arranged inside the first model groove 20, a second model groove 22 is formed in the nose part of the skull model 19, and a nose section model 23 is arranged inside the second model groove 22;
a third model groove 24 is formed in the throat part of the skull model 19, a throat section model 25 is arranged inside the third model groove 24, a rotating rod 26 is rotatably connected to the middle part of the skull model 19, a first transmission groove 27 is formed in the skull model 19 corresponding to the first model groove 20 and the second model groove 22, a first reversing gear 28 is fixed at the top of the rotating rod 26 positioned in the first transmission groove 27, a second reversing gear 29 is connected to one side of the first transmission groove 27 close to the first reversing gear 28 in a meshing manner, first screws 30 are fixed at two ends of the second reversing gear 29, the first screws 30 are in threaded connection with the ear section model 21, a third reversing gear 31 is connected to the other side of the first reversing gear 28 in a meshing manner, and a second screw 32 is fixed to one side of the third reversing gear 31 close to the second model groove 22;
the second screw rod 32 is meshed with the nose section model 23, a second transmission groove 33 is formed in the skull model 19 corresponding to the third model groove 24, a fourth reversing gear 34 is fixed on the outer side of the rotating rod 26 in the second transmission groove 33, a fifth reversing gear 35 is meshed with one side of the fourth reversing gear 34, a third screw rod 36 is fixed on one side of the fifth reversing gear 35 close to the third model groove 24, the third screw rod 36 is in threaded connection with the throat section model 25, a sixth reversing gear 37 is fixed at the bottom of the rotating rod 26, guide grooves 38 are formed in two sides of the lifting seat 5, a guide rod 39 penetrates through the guide groove 38, the guide rod 39 is rectangular and columnar, the guide rod 39 is matched with the guide groove 38 in size, the guide rod 39 and the guide groove 38 form a guide structure, the top of the guide rod 39 is fixedly connected with the top of the inner side of the containing box 1, the bottom of the guide rod 39 is fixedly connected with the top of the sliding seat 4, and the guide rod 39 drives the sixth reversing gear 37 to rotate through the second transmission mechanism;
the transmission teeth 40 are fixed on one side surface of the guide rod 39 at equal intervals, the bottom of the lifting seat 5 close to the sixth reversing gear 37 is rotatably connected with a seventh reversing gear 41, one side of the seventh reversing gear 41 close to the transmission teeth 40 is fixed with a second gear 42, the pitch of the second gear 42 is equal to that of the transmission teeth 40, the second gear 42 is meshed with the transmission teeth 40, when the lifting seat 5 drives the skull model 19 to move upwards, the second gear 42 and the transmission teeth 40 move relatively, so that the transmission teeth 40 drive the second gear 42 to rotate, the second gear 42 drives the sixth reversing gear 37 to rotate through the seventh reversing gear 41, the sixth reversing gear 37 drives the rotating rod 26 to rotate, the rotating rod 26 drives the first reversing gear 28 and the fourth reversing gear 34 to rotate, the first reversing gear 28 drives the first screw 30 to rotate through the second reversing gear 29, and the first reversing gear 28 drives the second screw 32 to rotate through the third reversing gear 31, the fourth reversing gear 34 drives the third screw 36 to rotate through the fifth reversing gear 35, so that the first screw 30, the second screw 32 and the third screw 36 respectively drive the ear section model 21, the nose section model 23 and the throat section model 25 to move towards the outer side of the skull model 19, and the ear section model 21, the nose section model 23 and the throat section model 25 are automatically opened while the skull model 19 moves upwards for display.
The working principle is as follows: when the ear-nose-throat teaching mold is used, firstly, when a skull model 19 needs to be displayed or stored, a handle 10 is rotated, the handle 10 drives two screw rods 8 to rotate simultaneously through a first gear 9 and a toothed belt 11, so that the screw rods 8 drive first slide blocks 7 on two sides to approach or separate from each other, when the first slide blocks 7 approach each other, the first slide blocks 7 drive a lifting seat 5 to move upwards through a first transmission rod 12, so that the lifting seat 5 drives the skull model 19 to move out of a storage box 1 for displaying, and when the first slide blocks 7 separate from each other, the first slide blocks 7 drive the lifting seat 5 to move downwards through the first transmission rod 12, so that the lifting seat 5 drives the skull model 19 to enter the interior of the storage box 1, the skull model 19 is convenient to be displayed or stored, the skull model 19 can be protected through the storage box 1, and the skull model 19 is prevented from being damaged;
when the lifting seat 5 drives the skull model 19 to move out of the containing box 1 for exhibition, the lifting seat 5 drives the sealing cover 15 to rotate through the second transmission rod 18, so that the sealing cover 15 expands towards two sides, the sealing cover 15 is driven to automatically open through the first transmission mechanism while the skull model 19 moves upwards, when the lifting seat 5 drives the skull model 19 to move downwards, the lifting seat 5 drives the sealing cover 15 to reversely rotate through the second transmission rod 18, and the sealing cover 15 can be automatically closed when the skull model 19 is contained;
when the lifting seat 5 drives the skull model 19 to move upwards, the second gear 42 and the transmission gear 40 move relatively, so that the transmission gear 40 drives the second gear 42 to rotate, the second gear 42 drives the sixth reversing gear 37 to rotate through the seventh reversing gear 41, the sixth reversing gear 37 drives the rotating rod 26 to rotate, the rotating rod 26 drives the first reversing gear 28 and the fourth reversing gear 34 to rotate, the first reversing gear 28 drives the first screw 30 to rotate through the second reversing gear 29, the first reversing gear 28 drives the second screw 32 to rotate through the third reversing gear 31, the fourth reversing gear 34 drives the third screw 36 to rotate through the fifth reversing gear 35, so that the first screw 30, the second screw 32 and the third screw 36 respectively drive the ear section model 21, the nose section model 23 and the throat section model 25 to move towards the outer side of the skull model 19, and the skull model 19 is displayed while moving upwards, the ear section model 21, the nose section model 23 and the throat section model 25 are automatically opened.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides an otolaryngology teaching mould, includes containing box (1), its characterized in that: the four corners of the bottom of the containing box (1) are fixed with supporting legs (2), the inside of the containing box (1) is provided with a containing groove (3), the bottom of the containing groove (3) is fixed with a sliding seat (4), wherein,
a lifting seat (5) is arranged above the sliding seat (4), the sliding seat (4) drives the lifting seat (5) to lift through a lifting mechanism, an open groove (13) is arranged at the top of the containing box (1), a sealing cover groove (14) is arranged at the top of the containing box (1) close to the open groove (13), the sealing cover (15) is symmetrically and rotationally connected inside the sealing cover groove (14), the lifting seat (5) drives the sealing cover (15) to open or close through a first transmission mechanism, a skull model (19) is arranged in the middle of the top end of the lifting seat (5), a first model groove (20) is arranged on the ear part of the skull model (19), an ear section model (21) is arranged in the first model groove (20), a second mould groove (22) is formed in the nose part of the skull model (19), and a nose part section model (23) is arranged inside the second mould groove (22);
a third model groove (24) is formed in the throat part of the skull model (19), a throat section model (25) is arranged in the third model groove (24), a rotating rod (26) is rotatably connected to the middle part of the skull model (19), a first transmission groove (27) is formed in the skull model (19) corresponding to the first model groove (20) and the second model groove (22), a first reversing gear (28) is fixed at the top of the rotating rod (26) in the first transmission groove (27), a second reversing gear (29) is connected to one side, close to the first reversing gear (28), of the first transmission groove (27) in a meshing manner, first screw rods (30) are fixed at two ends of the second reversing gear (29), the first screw rods (30) are in threaded connection with the ear section model (21), a third reversing gear (31) is connected to the other side of the first reversing gear (28) in a meshing manner, a second screw (32) is fixed on one side of the third reversing gear (31) close to the second die groove (22);
the second screw (32) is meshed with the nose section model (23), a second transmission groove (33) is arranged in the skull model (19) corresponding to the third model groove (24), a fourth reversing gear (34) is fixed on the outer side of the rotating rod (26) in the second transmission groove (33), one side of the fourth reversing gear (34) is connected with a fifth reversing gear (35) in a meshing way, a third screw rod (36) is fixed on one side of the fifth reversing gear (35) close to the third mould groove (24), the third screw rod (36) is in threaded connection with the throat section model (25), a sixth reversing gear (37) is fixed at the bottom of the rotating rod (26), guide grooves (38) are formed in two sides of the lifting seat (5), guide rods (39) penetrate through the guide grooves (38), the guide rod (39) drives the sixth reversing gear (37) to rotate through the second transmission mechanism.
2. The ear-nose-throat teaching aid as claimed in claim 1, wherein: the lifting mechanism comprises a first chute (6), a first slide block (7), a screw rod (8), a first gear (9), a handle (10), a toothed belt (11) and a first transmission rod (12), first sliding grooves (6) are symmetrically formed in two sides of the top of the sliding seat (4), a first sliding block (7) is arranged inside the first sliding grooves (6), a screw rod (8) penetrates through the first sliding block (7) and the first sliding chute (6), a first gear (9) is fixed on the outer side of the screw rod (8) close to the containing box (1), a handle (10) is fixed at one end of the first gear (9) far away from the screw rod (8), a toothed belt (11) is sleeved between the first gears (9), the top of the first sliding block (7) is rotationally connected with a first transmission rod (12), the top of the first transmission rod (12) is rotatably connected with the bottom of the lifting seat (5).
3. The ear-nose-throat teaching aid as claimed in claim 2, wherein: two sections of external threads are arranged on the screw rod (8), the two sections of external threads of the screw rod (8) are respectively positioned inside the first sliding grooves (6) on the two sides, and the grains of the two sections of external threads of the screw rod (8) are opposite.
4. The ear-nose-throat teaching aid as claimed in claim 1, wherein: the first transmission mechanism comprises a second sliding groove (16), a second sliding block (17) and a second transmission rod (18), the second sliding groove (16) is formed in the bottom of the sealing cover (15), the second sliding block (17) is arranged inside the second sliding groove (16), the bottom of the second sliding block (17) is rotatably connected with the second transmission rod (18), and the bottom of the second transmission rod (18) is rotatably connected with the top of the lifting seat (5).
5. The ear-nose-throat teaching aid as claimed in claim 4, wherein: the second sliding block (17) and the second sliding groove (16) are T-shaped, and the second sliding block (17) is matched with the second sliding groove (16) in size.
6. The ear-nose-throat teaching aid as claimed in claim 1, wherein: the guide rod (39) is rectangular column-shaped, the size of the guide rod (39) is matched with that of the guide groove (38), and the guide rod (39) and the guide groove (38) form a guide structure.
7. The ear-nose-throat teaching aid as claimed in claim 1, wherein: the top of the guide rod (39) is fixedly connected with the top of the inner side of the containing box (1), and the bottom of the guide rod (39) is fixedly connected with the top of the sliding seat (4).
8. The ear-nose-throat teaching aid as claimed in claim 1, wherein: the second drive mechanism includes driving cog (40), seventh reversing gear (41) and second gear (42), one of them side equidistance is fixed with driving cog (40) in guide bar (39), the bottom rotation that lift seat (5) are close to sixth reversing gear (37) is connected with seventh reversing gear (41), one side that seventh reversing gear (41) are close to driving cog (40) is fixed with second gear (42).
9. The ear-nose-throat teaching aid as claimed in claim 8, wherein: the second gear (42) and the transmission gear (40) have the same pitch, and the second gear (42) is meshed with the transmission gear (40).
CN202110841823.7A 2021-07-26 2021-07-26 Ear-nose-throat teaching mould Active CN113436516B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
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CN114216366A (en) * 2021-12-24 2022-03-22 鲁东大学 Rocket launcher for ships
CN115206165A (en) * 2022-08-12 2022-10-18 张轩豪 Teaching equipment for multi-functional experiments
CN116439543A (en) * 2023-03-15 2023-07-18 东莞市鼎艺创意文化有限公司 Theme device with high compatibility

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