CN113593309B - Otolaryngology branch of academic or vocational study is with teaching display device - Google Patents
Otolaryngology branch of academic or vocational study is with teaching display device Download PDFInfo
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- CN113593309B CN113593309B CN202110853223.2A CN202110853223A CN113593309B CN 113593309 B CN113593309 B CN 113593309B CN 202110853223 A CN202110853223 A CN 202110853223A CN 113593309 B CN113593309 B CN 113593309B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B1/00—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways
- G09B1/02—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements
- G09B1/04—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements the elements each bearing a single symbol or a single combination of symbols
- G09B1/06—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways and having a support carrying or adapted to carry the elements the elements each bearing a single symbol or a single combination of symbols and being attachable to, or mounted on, the support
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Abstract
A plurality of turnover plates can be sequentially turned over from left to right to front side, when the turnover plate on the right side is turned over to the front side, the turnover plate on the left side adjacent to the turnover plate on the right side can be turned over backwards to reset, when the turnover plate on the leftmost side is turned over to the front side, the turnover plate on the rightmost side can be turned over backwards to reset, when the turnover plate is turned over to the front side, two display plates can be synchronously unfolded outwards, and when the turnover plate is turned over to the rear side, the two display plates can be synchronously folded inwards; the upper side and the lower side of the left side and the right side of the display board are respectively fixedly connected with a clamping box, and the surfaces of the clamping boxes are respectively provided with a clamping board; can control each returning face plate to the front side upset gradually when using the show board, the show board alright in order to expand to both sides, conveniently fix the data and the student watches, the left returning face plate just can turn over backward and reset and drive the show board of being connected and fold and reset when the returning face plate on right side overturns to the front side, and in cycles, the person of facilitating the use operates, controls and uses the show board.
Description
Technical Field
The invention relates to the field of display devices, in particular to a teaching display device for an ear-nose-throat department.
Background
The otorhinolaryngological department is a surgical department that diagnoses and treats the ear, nose, pharynx, larynx, and its associated head and neck regions. With the progress and development of science and technology, medical departments mutually permeate and promote, the scope of the otolaryngological department is expanded, in the teaching of the knowledge of the otolaryngological department, due to the fact that professional knowledge in the otolaryngological department is various, in order to help students to deeply recognize the structure of the human body otolaryngological department and the related medical knowledge, a teacher usually prepares corresponding image-text data in the teaching, the image-text comparison is carried out in the teaching, so that the first impression of the students is deepened in the teaching, the students are helped to understand, the data need to be displayed to the students in the teaching process, at present, a display board is usually used for displaying, the teaching data are continuously replaced in the learning process, the teaching time is easily delayed, and the learning of the students is delayed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the teaching display device for the ear-nose-throat department, which is convenient for displaying teaching materials, is simple and convenient to operate, can effectively save teaching time and effectively solves the problems in the background technology.
In order to solve the problems, the invention adopts the technical scheme that:
a teaching display device for otolaryngological department comprises a base, wherein a liftable mounting box is mounted on the upper side of the base, the front end of the mounting box is rotatably connected with a plurality of turnover plates capable of being turned over to the front side, the turnover plates can be turned over to the front side from left to right in sequence, when the turnover plate on the right side is turned over to the front side, the turnover plate on the left side adjacent to the turnover plate on the right side can be turned over backwards and reset, when the turnover plate on the leftmost side is turned over to the front side, the turnover plate on the rightmost side can be turned over backwards and reset, the upper end of the turnover plate is hinged with two display plates together, when the turnover plate is turned over to the front side, the two display plates can be unfolded outwards synchronously, and when the turnover plate is turned over to the rear side, the two display plates can be folded inwards synchronously; the upper side and the lower side of the left side and the right side of the display board are respectively and fixedly connected with a clamping box, the surfaces of the clamping boxes are respectively provided with a clamping board, and the inner sides of the clamping boards are respectively attached to the surfaces of the inner ends of the display board;
the upper side and the lower side of the surface of the outer end of the clamping box are respectively connected with a clamping sliding block capable of moving left and right in a sliding mode, the inner side of the clamping sliding block is respectively and fixedly connected with a clamping spring, the other end of the clamping spring is respectively and fixedly connected with the clamping box, the clamping plates are respectively and fixedly connected with the front ends of the clamping sliding blocks, a control plate is respectively arranged between the clamping boxes on each side, and the upper end and the lower end of each control plate are respectively and fixedly connected with the clamping sliding block;
the left side of the turnover plate is respectively provided with a guide plate, the guide plates are respectively fixedly connected with the mounting box, the surfaces of the guide plates are respectively provided with a guide groove, the upper end of the guide groove is of an arc structure, the arc structure at the upper end of the guide groove is coaxial with a rotating connection point at the lower end of the turnover plate, the rear end of the turnover plate is respectively connected with a movable sliding block capable of moving up and down in a sliding manner, the left end of the movable sliding block is respectively connected with a matching pin shaft in a rotating manner, the other end of the matching pin shaft is in sliding fit with the guide groove, when the turnover plate is turned forwards, the movable sliding block can be driven to move downwards through the sliding fit of the matching pin shaft and the guide groove, the upper end of the movable sliding block is respectively hinged with two hinged arc plates, the other ends of the hinged arc plates are respectively hinged with the display plates, and when the movable sliding block moves downwards, the two display plates can be driven to synchronously unfold outwards;
the lower end of the turnover plate is fixedly connected with a connecting arm respectively, the other end of the connecting arm is hinged with a hinge rod respectively, the other end of the hinge rod is connected with a moving plate in a sliding manner respectively, the lower end of the moving plate is connected with the lower end inside the mounting box in a sliding manner respectively, the lower side of the moving plate is provided with a return spring respectively, two ends of the return spring are fixedly connected with the moving plate and the inner wall of the mounting box respectively, the right end of the moving plate is fixedly connected with a matching rack respectively, the right side of the matching rack is provided with a matching gear capable of being meshed respectively, the matching gear is rotatably connected with the inside of the mounting box respectively, the lower side of the matching gear is coaxially and fixedly connected with a ratchet gear respectively, one side of the ratchet gear is meshed with a pawl, the middle part of the pawl is rotatably connected with the inner wall of the mounting box respectively, the right end of the pawl is provided with a swinging plate respectively, the middle part of the swinging plate is rotatably connected with the inner wall of the mounting box, the lower side of the middle part of the swinging plate is provided with a torsion spring respectively, one end of the torsion spring is fixedly connected with the swinging plate, the other end of the torsion spring is fixedly connected with the inner wall of the mounting box, the swinging plate, the left end of the swinging plate is fixedly connected with the right end of the swinging plate, the right end of the swinging plate is positioned at the rear side of the swinging plate, and adjacent swinging plate;
the upper end of the leftmost poking rod is fixedly connected with a linkage rod, the right end of the linkage rod extends to the upper end of the rightmost swinging plate, poking pin shafts are fixedly connected to the lower sides of the right ends of the linkage rod respectively, and the poking pin shafts are located on the rear side of the right end of the rightmost poking rod.
Preferably, the rotating connection points at the lower end of the turnover plate are respectively and coaxially and fixedly connected with driven gears, the lower sides of the driven gears are respectively meshed with driving racks, the lower ends of the driving racks are respectively and slidably connected with the inside of the mounting box, and the front ends of the driving racks are respectively and fixedly connected with driving handles.
Preferably, the rear side surface of the base is fixedly connected with a support plate, the rear end of the mounting box is fixedly connected with a lifting plate, the lifting plate is slidably connected with the support plate, the right end of the lifting plate is fixedly connected with a lifting rack, the right side of the lifting rack is meshed with a lifting gear, the lifting gear is rotatably connected with the support plate, the rear side of the lifting gear is fixedly connected with a lifting worm gear coaxially with the axis, the right side of the lifting worm gear is meshed with a lifting worm, the lifting worm is rotatably connected with the support plate, the lower end of the lifting worm is fixedly connected with a first reversing bevel gear, the rear side of the first reversing bevel gear is meshed with a second reversing bevel gear, the middle part of the second reversing bevel gear is fixedly connected with a connecting shaft, the connecting shaft is rotatably connected with the surface of the support plate, and the rear end of the connecting shaft is fixedly connected with a lifting turntable.
Preferably, the bottom of base is a plurality of service brake universal wheels of fixedly connected with respectively.
The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:
this device can pass through the grip block with the teaching material and fix respectively on every show board surface when using, convenient teaching looks up with the student and watches, and can control each returning face plate upset to the front side gradually when using the show board, show board alright with expand to both sides, make things convenient for fixed data and student to watch, and when the returning face plate on right side upset to the front side left returning face plate just can turn over backward and reset and drive rather than the show board of being connected folds and reset, after the returning face plate on rightmost side overturns to the front side, through controlling the returning face plate forward that turns over most left alright with make the returning face plate on rightmost side turn over backward and reset, in cycles and starts, the person of facilitating the use operates, control and use show board.
Drawings
Fig. 1 is a schematic overall structure diagram of a teaching display device for otolaryngological department of the invention.
Fig. 2 is a schematic view of a clamping plate mounting structure of the teaching display device for otolaryngological department of the invention.
FIG. 3 is a schematic view of the fitting structure of the guide groove and the fitting pin shaft of the teaching display device for otolaryngological department of the invention.
FIG. 4 is a schematic view of a mounting structure of a flip plate of the teaching display device for otolaryngological department of the invention.
Fig. 5 is a schematic view of the internal structure of the mounting box of the teaching display device for otolaryngological department of the invention.
Fig. 6 is a schematic view of a turnover plate turnover driving structure of the teaching display device for the ear-nose-throat department.
Fig. 7 is a schematic view of a structure of the matching of the poke rod and the swing plate of the teaching display device for the ear-nose-throat department of the invention.
Fig. 8 is a schematic view of a matching structure of a toggle pin shaft and a swing plate of the teaching display device for the otolaryngological department.
Fig. 9 is a schematic view of the lifting structure of the lifting plate of the teaching display device for the ear-nose-throat department.
The reference numbers in the figures: 1-base, 2-support plate, 3-lifting plate, 4-lifting rack, 5-lifting gear, 6-lifting worm wheel, 7-lifting worm, 8-first reversing bevel gear, 9-second reversing bevel gear, 10-lifting turntable, 11-mounting box, 12-guide plate, 13-turnover plate, 14-display plate, 16-hinged arc plate, 17-moving slide block, 18-matching pin shaft, 19-guide groove, 20-driven gear, 21-driving rack, 22-driving handle, 23-connecting arm, 24-hinged rod, 25-moving plate, 26-matching rack, 27-reset spring, 28-poking rod, 29-matching gear, 30-ratchet gear, 31-pawl, 32-swinging plate, 33-torsion spring, 34-clamping box, 35-clamping spring, 36-clamping slide block, 37-clamping plate, 38-control plate, 39-linkage rod and 40-poking pin shaft.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 9, the invention provides a teaching display device for otolaryngological department, which comprises a base 1, wherein a liftable mounting box 11 is mounted on the upper side of the base 1, the front end of the mounting box 11 is rotatably connected with a plurality of turnover plates 13 capable of being turned over to the front side, the turnover plates 13 can be sequentially turned over to the front side from left to right, the adjacent turnover plate 13 on the left side can be turned over backwards and reset when the turnover plate 13 on the right side is turned over to the front side, the turnover plate 13 on the right side can be turned over backwards and reset when the turnover plate 13 on the leftmost side is turned over to the front side, the upper end of the turnover plate 13 is hinged with two display plates 14, when the turnover plate 13 is turned over to the front side, the two display plates 14 can be synchronously unfolded outwards, and when the turnover plate 13 is turned over to the rear side, the two display plates 14 can be synchronously folded inwards; the upper and lower both sides of show board 14 left and right sides are fixedly connected with centre gripping box 34 respectively, grip block 37 is installed respectively on the surface of grip block 34, the inboard of grip block 37 respectively with show board 14 inner end surface laminating.
The inner of grip block 37 is buckled downwards respectively and is laminated with the show, this device can pass through grip block 37 with the teaching material and fix respectively on every show board 14 surface when using, convenient teaching looks up with the student and watches, and can control each returning face plate 13 to the front side upset gradually when using show board 14, show board 14 alright with expand to both sides, make things convenient for fixed data and student to watch, and left returning face plate 13 just can turn over backward and reset and drive show board 14 of being connected with it and fold and reset when the returning face plate 13 on right side overturns to the front side, after the returning face plate 13 on right side overturns to the front side, through controlling leftmost returning face plate 13 upset alright make rightmost returning face plate 13 turn over backward and reset, go round and over, the person of facilitating the use operates, control and use show board 14.
The upper and lower both sides on the surface of centre gripping box 34 outer end respectively sliding connection have can control the centre gripping slider 36 that removes, the inboard fixedly connected with centre gripping spring 35 respectively of centre gripping slider 36, the other end of centre gripping spring 35 respectively with centre gripping box 34 fixed connection, grip block 37 respectively with the front end fixed connection of centre gripping slider 36, each side be provided with control panel 38 between the centre gripping box 34 respectively, control panel 38 upper and lower both ends respectively with centre gripping slider 36 fixed connection.
Centre gripping spout has been seted up respectively to the surface of centre gripping box 34, centre gripping slider 36 and centre gripping spout sliding connection, centre gripping spring 35 is located inside the centre gripping spout, control panel 38 is used for promoting grip block 37 and removes, make have the space that holds the data between grip block 37 and the show board 14, can promote centre gripping slider 36 extrusion centre gripping spring 35 when promoting control panel 38, place the data between grip block 37 and show board 14 after loosening control panel 38 behind the back alright carry out the centre gripping fixedly with promoting the cooperation of centre gripping spring 35 to data under the promotion of centre gripping spring 35.
The display device is characterized in that guide plates 12 are respectively arranged on the left sides of the turnover plates 13, the guide plates 12 are respectively fixedly connected with the mounting box 11, guide grooves 19 are respectively formed in the surfaces of the guide plates 12, the upper ends of the guide grooves 19 are of arc structures, the arc structures at the upper ends of the guide grooves 19 are coaxial with the rotating connection points at the lower ends of the turnover plates 13, the rear ends of the turnover plates 13 are respectively connected with a movable sliding block 17 capable of moving up and down in a sliding mode, the left ends of the movable sliding blocks 17 are respectively connected with a matching pin shaft 18 in a rotating mode, the other ends of the matching pin shafts 18 are in sliding fit with the guide grooves 19, when the turnover plates 13 are turned over towards the front side, the movable sliding blocks 17 can be driven to move downwards through the matching pin shafts 18 and the guide grooves 19 in a sliding fit mode, the upper ends of the movable sliding blocks 17 are respectively hinged to two hinged arc plates 16, the other ends of the hinged arc plates 16 are respectively hinged to the display plates 14, and when the movable sliding blocks 17 move towards the lower side, the two display plates 14 can be driven to synchronously unfolded towards the outer side.
As shown in fig. 3 and 4, since the arc structure at the upper end of the guide plate 12 is coaxial with the rotation connection point at the lower end of the turning plate 13, when the turning plate 13 is turned downward to drive the matching pin 18 to move along the guide plate 12, the display plate 14 does not change, and time is provided for turning the turning plate 13 adjacent to the left side of the turning plate and folding and restoring the display plate 14, when the turning plate 13 is continuously turned forward, the matching pin 18 moves to the front side of the guide groove 19, the matching pin 18 is pressed by the inner wall of the guide groove 19 to force the moving slide block 17 to move downward, so as to drive the two display plates 14 to gradually unfold towards both sides, and when the turning plate 13 is turned to be parallel to the ground, the matching pin 18 also synchronously moves to the lower end of the front side of the guide groove 19, so that the two display plates 14 can be completely unfolded towards both sides.
The lower end of the turning plate 13 is fixedly connected with a connecting arm 23, the other end of the connecting arm 23 is hinged with a hinge rod 24, the other end of the hinge rod 24 is connected with a moving plate 25, the lower end of the moving plate 25 is connected with the lower end inside the mounting box 11, a return spring 27 is arranged on the lower side of the moving plate 25, the two ends of the return spring 27 are fixedly connected with the inner walls of the moving plate 25 and the mounting box 11, the right end of the moving plate 25 is fixedly connected with a matching rack 26, the right side of the matching rack 26 is provided with a matching gear 29 which can be engaged, the matching gear 29 is rotatably connected with the inside of the mounting box 11, the lower side of the matching gear 29 is coaxially and fixedly connected with a ratchet gear 30, one side of the ratchet gear 30 is engaged with a pawl 31, the middle part of the moving rod 31 is rotatably connected with the inner wall inside the mounting box 11, the right end of the pawl 31 is provided with an oscillating plate 32, the middle part of the oscillating plate 32 is rotatably connected with the inner wall of the mounting box 11, the lower side of the oscillating plate 32 is provided with a torsion spring 33, one end of the torsion spring 33 is fixedly connected with the oscillating plate 32, the inner wall of the mounting box 33 is connected with the left end of the fixed side of the oscillating plate, the left end of the oscillating plate 28, the other end of the oscillating plate is connected with the left end of the oscillating plate 28, and the oscillating plate 28, the left end of the oscillating plate 32 is connected with the oscillating plate 28, the oscillating plate 28;
the upper end of the leftmost poking rod 28 is fixedly connected with a linkage rod 39, the right end of the linkage rod 39 extends to the upper end of the rightmost swinging plate 32, the lower sides of the right ends of the linkage rod 39 are respectively and fixedly connected with poking pin shafts 40, and the poking pin shafts 40 are positioned at the rear side of the right end of the rightmost poking rod 28.
The lower end of the moving plate 25 is fixedly connected with a moving slide block 17, the bottom end inside the mounting box 11 is provided with a moving slide groove in sliding connection with the moving slide block 17, the reset spring 27 is positioned on the inner side of the moving slide groove, the middle part of the reset spring 27 is provided with a spring shaft, two ends of the spring shaft are fixedly connected with the inner wall of the moving slide groove, the moving slide block 17 is in sliding connection with the surface of the spring shaft, the spring shaft is used for preventing the reset spring 27 from being bent when compressed, the left side of the surface of the swinging plate 32 is provided with a key-shaped slide groove, the lower side of the right end of the pawl 31 is fixedly connected with a pin rod, the pin rod is in sliding fit with the key-shaped slide groove, when the right end of the swinging plate 32 is stressed, the left end swings, the pawl 31 is driven to be disengaged from the ratchet gear 30 through the sliding fit of the key-shaped slide groove and the pin rod, and the torsion spring 33 is used for driving the pawl 31 to reset to be re-engaged with the ratchet gear 30; when the turnover plate 13 is turned over to the front side, the movable plate 25 can be driven to move to the front side and the reset spring 27 is extruded under the linkage action of the connecting arm 23 and the hinge rod 24, the meshing of the ratchet gear 30 and the pawl 31 is used for enabling the movable plate 25 to move to the front side only in one direction, when the movable plate 25 moves to the front side, the ratchet gear 30 can be driven to rotate under the meshing of the matching rack 26 and the matching gear 29, but the ratchet 31 cannot be blocked to rotate reversely, when the turnover plate 13 on the right side is turned to the front side, the poke rod 28 can synchronously move along with the movable plate 25, and pokes the swing plate 32 when the movable plate moves, so that the pawl 31 and the ratchet gear 30 are driven to be disengaged temporarily under the transmission of the swing plate 32, and when the pawl 31 is disengaged from the ratchet gear 30, the turnover plate 13 on the left side can be reset under the pushing of the reset spring 27; the cooperation gear 29 with set up the front side at cooperation rack 26 when the installation, cooperation rack 26 can not mesh with cooperation gear 29 when the returning face plate 13 small-amplitude overturns to the front side, wherein after the returning face plate 13 that works as the right side overturns to the front side, can drive trace 39 to the front side through the control returning face plate 13 that the leftmost overturns to the front side and move, make the swinging plate 32 that the pin axle 40 stirs the rightmost, make the returning face plate 13 that the rightmost reset, and the returning face plate 13 that the leftmost overturns can restore to the throne under reset spring 27's promotion equally when not atress, the convenience is accomodate this device after the use is accomplished.
The rotating connection points at the lower end of the turnover plate 13 are respectively and coaxially and fixedly connected with driven gears 20, the lower sides of the driven gears 20 are respectively meshed with driving racks 21, the lower ends of the driving racks 21 are respectively and slidably connected with the inside of the mounting box 11, and the front ends of the driving racks 21 are respectively and fixedly connected with driving handles 22.
The driving handle 22 is used for assisting a user to control the turnover plate 13 to turn forwards, and when the driving handle 22 is pushed backwards, the turnover plate 13 can be driven to turn forwards under the meshing of the driven gear 20 and the driving rack 21, so that the operation of the user is facilitated.
The rear side surface of the base 1 is fixedly connected with supporting plates 2 respectively, the rear end of the mounting box 11 is fixedly connected with a lifting plate 3, the lifting plate 3 is connected with the supporting plates 2 in a sliding manner, the right end of the lifting plate 3 is fixedly connected with a lifting rack 4, the right side of the lifting rack 4 is meshed with a lifting gear 5, the lifting gear 5 is rotatably connected with the supporting plates 2, the rear side of the lifting gear 5 is coaxially and fixedly connected with a lifting worm wheel 6, the right side of the lifting worm wheel 6 is meshed with a lifting worm 7, the lifting worm 7 is rotatably connected with the supporting plates 2, the lower end of the lifting worm 7 is fixedly connected with a first reversing bevel gear 8, the rear side of the first reversing bevel gear 8 is meshed with a second reversing bevel gear 9, the middle part of the second reversing bevel gear 9 is fixedly connected with connecting shafts respectively, the connecting shafts are rotatably connected with the surfaces of the supporting plates 2, and the rear end of the connecting shafts is fixedly connected with a lifting turntable 10; the bottom of base 1 is a plurality of service brake universal wheels of fixedly connected with respectively.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides an otolaryngology branch of academic or vocational study is with teaching display device, includes base (1), its characterized in that: a liftable installation box (11) is installed on the upper side of the base (1), the front end of the installation box (11) is rotatably connected with a plurality of turnover plates (13) capable of being turned over to the front side, the turnover plates (13) can be turned over to the front side from left to right in sequence, every time when the turnover plate (13) on the right side is turned over to the front side, the turnover plate (13) on the left side adjacent to the turnover plate (13) on the left side can be turned over backwards and reset, when the turnover plate (13) on the leftmost side is turned over to the front side, the turnover plate (13) on the rightmost side can be turned over backwards and reset, the upper ends of the turnover plates (13) are hinged with two display plates (14), when the turnover plate (13) is turned over to the front side, the two display plates (14) can be unfolded outwards synchronously, and when the turnover plate (13) is turned over to the rear side, the two display plates (14) can be folded inwards synchronously; the upper side and the lower side of the left side and the right side of the display board (14) are respectively fixedly connected with a clamping box (34), the surfaces of the clamping boxes (34) are respectively provided with a clamping board (37), and the inner sides of the clamping boards (37) are respectively attached to the surfaces of the inner ends of the display board (14);
the upper side and the lower side of the surface of the outer end of the clamping box (34) are respectively connected with a clamping sliding block (36) capable of moving left and right in a sliding mode, the inner side of each clamping sliding block (36) is respectively fixedly connected with a clamping spring (35), the other end of each clamping spring (35) is respectively fixedly connected with the clamping box (34), each clamping plate (37) is respectively fixedly connected with the front end of each clamping sliding block (36), a control plate (38) is respectively arranged between the clamping boxes (34) on each side, and the upper end and the lower end of each control plate (38) are respectively fixedly connected with the clamping sliding blocks (36);
the left side of the turnover plate (13) is respectively provided with a guide plate (12), the guide plates (12) are respectively fixedly connected with the mounting box (11), the surface of each guide plate (12) is provided with a guide groove (19), the upper end of each guide groove (19) is of an arc structure, the arc structure at the upper end of each guide groove (19) is coaxial with a rotating connection point at the lower end of the turnover plate (13), the rear end of each turnover plate (13) is respectively connected with a movable sliding block (17) capable of moving up and down in a sliding manner, the left end of each movable sliding block (17) is respectively connected with a matching pin shaft (18) in a rotating manner, the other end of each matching pin shaft (18) is in sliding fit with the corresponding guide groove (19), when the turnover plate (13) is turned over to the front side, the movable sliding blocks (17) can be driven to move down through the sliding fit of the matching pin shafts (18) with the guide grooves (19), the upper end of each movable sliding block (17) is respectively hinged with two hinged arc plates (16), the other end of each hinged arc plate (16) is respectively hinged with the corresponding display plate (14), and when the movable sliding blocks (17) move outwards, the two display plates can be synchronously unfolded;
the lower end of the turnover plate (13) is respectively and fixedly connected with a connecting arm (23), the other end of the connecting arm (23) is respectively hinged with a hinged rod (24), the other end of the hinged rod (24) is respectively and slidably connected with a movable plate (25), the lower end of the movable plate (25) is respectively and slidably connected with the lower end in the mounting box (11), the lower side of the movable plate (25) is respectively provided with a reset spring (27), two ends of the reset spring (27) are respectively and fixedly connected with the inner walls of the movable plate (25) and the mounting box (11), the right end of the movable plate (25) is respectively and fixedly connected with a matching rack (26), the right side of the matching rack (26) is respectively provided with a matching gear (29) which can be meshed, the matching gear (29) is respectively and rotatably connected with the inner wall of the mounting box (11), the lower side of the matching gear (29) is respectively and fixedly connected with a ratchet gear (30) in a coaxial manner, one side of the ratchet gear (30) is meshed with a pawl (31), the middle part of the pawl (31) is respectively and rotatably connected with the inner wall of the mounting box (11), the swinging plate (32) is respectively arranged at the right end of the pawl (31), and the swinging plate (32) is respectively connected with the swinging plate (33), one end of the torsion spring (33) is fixedly connected with the swinging plate (32), the other end of the torsion spring (33) is fixedly connected with the inner wall of the mounting box (11), the left end of the swinging plate (32) is respectively in sliding connection with the right end of the pawl (31), the left end of the moving plate (25) is respectively and fixedly connected with a poking rod (28), and the other end of the poking rod (28) is respectively positioned on the rear side of the right end of the swinging plate (32) adjacent to the right side;
the upper end of the leftmost poking rod (28) is fixedly connected with a linkage rod (39), the right end of the linkage rod (39) extends to the rightmost side of the upper end of the swinging plate (32) and the lower side of the right end of the linkage rod (39) is respectively and fixedly connected with a poking pin shaft (40), and the poking pin shaft (40) is located at the rightmost side of the rear side of the right end of the poking rod (28).
2. The teaching display device for otolaryngological department of claim 1, wherein: the rotation connection point of returning face plate (13) lower extreme is respectively with axle center fixedly connected with driven gear (20), the downside of driven gear (20) meshes respectively and has drive rack (21), the lower extreme of drive rack (21) respectively with the inside sliding connection of mounting box (11), the front end of drive rack (21) is fixedly connected with drive handle (22) respectively.
3. The teaching display device for the otolaryngological department of claim 1, wherein: the rear side surface of the base (1) is fixedly connected with a supporting plate (2) respectively, the rear end of the mounting box (11) is fixedly connected with a lifting plate (3), the lifting plate (3) is connected with the supporting plate (2) in a sliding mode, the right end of the lifting plate (3) is fixedly connected with a lifting rack (4), the right side of the lifting rack (4) is meshed with a lifting gear (5), the lifting gear (5) is connected with the supporting plate (2) in a rotating mode, the rear side of the lifting gear (5) is fixedly connected with a lifting worm wheel (6) in a coaxial mode, the right side of the lifting worm wheel (6) is meshed with a lifting worm (7), the lifting worm (7) is connected with the supporting plate (2) in a rotating mode, the lower end of the lifting worm (7) is fixedly connected with a first reversing bevel gear (8), the rear side of the first reversing bevel gear (8) is meshed with a second reversing bevel gear (9), the middle of the second reversing bevel gear (9) is fixedly connected with the connecting shaft in a rotating mode respectively, the surface of the supporting plate (2) is connected with a lifting turntable (10) fixedly connected with the rear end of the connecting shaft.
4. The teaching display device for the otolaryngological department of claim 1, wherein: the bottom of base (1) is a plurality of service brake universal wheels of fixedly connected with respectively.
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