CN110030465B - Colleges and universities' teaching equipment - Google Patents
Colleges and universities' teaching equipment Download PDFInfo
- Publication number
- CN110030465B CN110030465B CN201910201889.2A CN201910201889A CN110030465B CN 110030465 B CN110030465 B CN 110030465B CN 201910201889 A CN201910201889 A CN 201910201889A CN 110030465 B CN110030465 B CN 110030465B
- Authority
- CN
- China
- Prior art keywords
- hole
- double
- protection box
- spring
- sliding panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 21
- 239000007789 gas Substances 0.000 description 16
- 230000006378 damage Effects 0.000 description 8
- 210000003423 ankle Anatomy 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/045—Allowing translations adapted to left-right translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
-
- 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
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Manipulator (AREA)
Abstract
The invention belongs to the technical field of teaching aids, and particularly relates to teaching equipment for colleges, which comprises a bottom plate and universal wheels, wherein a protection box is connected to the bottom plate in a sliding manner; the protection box is provided with a handle, and the bottom in the protection box is provided with a double-head motor; a first spring is fixedly connected to each of two output shafts of the double-head motor; two ends of the bottom in the protection box are provided with a guide block; an L-shaped guide channel is arranged in the guide block; the first spring is driven by the double-end motor and vertically and upwards arranged through the L-shaped guide channel; a sliding panel is connected in the protection box in a sliding way; the sliding panel is provided with a liquid crystal display screen, the sliding panel is provided with a guide block, the sliding panel is provided with two blind holes, and the sliding panel is sleeved on the first spring through the blind holes; two convex blocks are arranged in the blind hole in the vertical direction; according to the invention, the first spring and the blind hole inner convex block rotate relatively, so that the sliding panel is lifted upwards, the structure is simple, the use is convenient, the convenience of using the teaching equipment at any time is improved, and the practicability of the teaching equipment is improved.
Description
Technical Field
The invention belongs to the technical field of teaching aids, and particularly relates to teaching equipment for colleges and universities.
Background
Multimedia teaching is an important link in modern basic education and is widely used in classes where listening, speaking, reading and writing need to be comprehensively matched; the multimedia equipment commonly adopted in the current classroom teaching needs to be simultaneously provided with equipment such as a computer, a projector, a curtain, a sound box and the like, is high in cost and complex in maintenance, and is inconvenient to move. Education has proved that the learning of knowledge is most facilitated by the way of seeing and hearing combined with pictures and use scenes, especially English with wide application, so that teaching equipment with simple structure, low cost and strong flexibility is needed in the field.
Disclosure of Invention
In order to make up for the defects of the prior art, the teaching equipment for colleges and universities is mainly used for solving the problems of complex structure and poor flexibility of the teaching equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the teaching equipment for colleges comprises a bottom plate and universal wheels fixed on the bottom plate, wherein the upper end of the bottom plate is provided with a sliding chute, and a protection box is connected in the sliding chute in a sliding manner; the front surface and the rear surface of the protection box are respectively provided with a handle, the protection box is internally of a hollow structure, and a double-head motor which is horizontally arranged is arranged at the symmetrical center of the bottom in the protection box; a first spring is fixedly connected to each of two output shafts of the double-head motor; two ends of the bottom in the protection box are symmetrically fixed with a guide block around the double-end motor; an L-shaped guide channel is arranged in the guide block, and the L-shaped guide channel is of a smooth arc structure; one end of the first spring is driven by being connected with the double-end motor, the other end of the first spring penetrates through the L-shaped guide channel to be vertically and upwards arranged, and the rotating directions of the two first springs are opposite; a sliding panel is connected in the protection box in a sliding manner; a liquid crystal display screen is embedded on the sliding panel, a guide block with an arc-shaped cross section is arranged between the sliding panel and the left side wall and the right side wall of the protection box, two blind holes are symmetrically and vertically arranged on the sliding panel relative to the liquid crystal display screen, and the sliding panel is sleeved on the two first springs through the two blind holes; two convex blocks are arranged in the blind hole in the vertical direction and arranged between the spiral spaces of the first spring; the lower part of the guide sliding block is connected with a corrugated pipe, the lower end of the corrugated pipe is connected to the guide block, and an air bag is arranged between the corrugated spaces of the corrugated pipe; the spring coil of the first spring is in contact with the air bag; the air bag is provided with an air hole;
when the teaching device works, a user pulls the teaching device to a use position through the handle, and in order to prevent the ankle from being collided during the moving process of the bottom plate during the pulling process, the protection box is pulled to one side close to the human body along the sliding groove, so that the device is convenient to move, the ankle cannot be collided, and the injury is avoided; when the universal wheel is pulled to a designated position, the universal wheel is locked, so that the position of the equipment cannot deviate in the use process, and the use stability is ensured; then the protection box is pushed back to the middle position of the bottom plate through the handle, so that the inclination in the use process is avoided, and the stability in use is improved; after the position of the protection box is fixed, the controller controls the double-head motor to drive the two first springs to rotate, and the first springs are changed from rotation in the horizontal direction to rotation in the vertical direction under the guiding action of the L-shaped guide channels in the guide blocks, so that the protection box is simple and light in structure, strong in mobility and low in cost; the first spring has good bending performance, and ensures the stability of the structure while ensuring that the turning and the rotation can be stably carried out; the smooth arc structure of the L-shaped guide channel reduces the friction force generated between the spring and the hole wall when the spring turns, reduces the heating and prolongs the service life of the spring; the first spring and the blind hole inner convex block rotate relatively, so that the sliding panel drives the liquid crystal display screen to rise upwards along the inner wall of the protection box under the guiding action of the guide block, and the double-head motor stops rotating after the liquid crystal display screen rises to a designated position, the use is convenient, the convenience of using the teaching equipment at any time is improved, and the practicability of the teaching equipment is improved; when the guide sliding block moves downwards to extrude the corrugated pipe, the corrugated pipe compresses and the first spring simultaneously extrudes the air bag, on one hand, the first spring is extruded by the corrugated pipe, so that the first spring is not bent when rotating, and the working stability is improved; on the other hand, after being extruded out, the gas in the air bag is blown on the first spring and the corrugated pipe, so that the friction between the first spring and the corrugated pipe is reduced.
A first air hole and a second air hole which penetrate through the protection box are formed in the bottom of the protection box; the first air hole and the second air hole are arranged between the guide block and the double-head motor, two groups of the first air hole and the second air hole are respectively arranged, the two groups of the first air holes are arranged in a mirror image mode relative to the double-head motor, the two groups of the second air holes are arranged in a mirror image mode relative to the double-head motor, the first air hole is arranged close to the guide block, the upper end of the first air hole is inclined towards the direction of the guide block, the second air hole is arranged close to the double-head motor, and the upper end of the second air hole is inclined; the bottom plate is provided with a third through hole which is respectively communicated with the first air hole and the second air hole; when the protective box works, when the sliding panel is pushed out along with the liquid crystal display screen, a similar closed space formed in the protective box is gradually increased, gas is sucked into the protective box through the third through hole respectively through the first air hole and the second air hole, the sucked gas is blown into the L-shaped guide channel through the obliquely arranged first air hole, the L-shaped guide channel and the first spring are cooled, the heat dissipation effect of the L-shaped guide channel is improved, the service life of the first spring is prolonged, and the L-shaped guide channel and the first spring are prevented from generating heat due to friction and damage caused by poor heat dissipation; no. two gas pockets that the slope set up will inhale gas and blow to the double-end motor output, cool off double-end motor, prolong double-end motor's life.
Two expansion plates are symmetrically arranged between two springs I in the protection box; the upper end of the telescopic plate is connected with the sliding panel, the lower end of the telescopic plate is fixed on the guide block, the telescopic plate is provided with three stages, strip-shaped sponge is arranged between the telescopic plate at the lowest part and the upper end of the telescopic plate at the uppermost part, and a magnet block is embedded on one side of the telescopic plate close to the first spring; when the lifting device works, the telescopic plate plays a supporting role for the sliding panel, the telescopic plate assists the sliding panel to lift, so that the lifting process is more stable, and when the lifting device is static, the telescopic plate fixedly supports the sliding panel, so that the use stability of the device is improved; simultaneously for avoiding a spring to rotate the in-process and take place the bending, the magnet piece that utilizes the setting attracts a spring to be close to the expansion plate to play certain supporting role to a spring through the strip sponge, avoid crooked to the sliding panel direction, further improve the stability of using.
A sealing element is arranged between the guide blocks; an elastic cloth strip with the same width as the upper part of the telescopic plate is arranged between the upper part of the telescopic plate and the sealing element; a fourth through hole and a fifth through hole are formed in the sealing element; the four through holes and the five through holes are arranged between the guide block and the double-head motor, two groups of the four through holes and two groups of the five through holes are respectively arranged, the two groups of the four through holes are arranged in a mirror image mode about the double-head motor, the two groups of the five through holes are arranged in a mirror image mode about the double-head motor, the four through holes are arranged close to the guide block, the lower ends of the four through holes are inclined towards the direction of the guide block, the five through holes are arranged close to the double-head motor, and the lower ends of the five through holes are; during operation, through sealing member and the elasticity cloth that sets up, enclose into approximate inclosed space with the space on sealing member upper portion, when sliding panel withdraws, the space on sealing member upper portion is compressed, gas is discharged from No. four perforating holes and No. five perforating holes, the combustion gas is blown on guide block and double-end motor through No. four perforating holes and No. five perforating holes correspondence that the slope set up, cool off L shape guide way and double-end motor, improve L shape guide way's radiating effect, the life of spring and double-end motor has been improved.
The upper part of the blind hole is provided with a number six through hole; the sixth through hole penetrates through the inner space of the blind hole and the outer space of the sliding panel and is obliquely arranged downwards; the during operation, when the sliding panel withdraws, the gas between expansion plate and the guard box inner wall is discharged in the No. six perforating holes of follow blind hole top after being extrudeed, and gas outgoing's in-process cools off, cools down the position of a spring and lug contact, reduces the wearing and tearing between a spring and the lug, prolongs the life of a spring and lug, simultaneously, cools off the electrical components in the liquid crystal display, further reduces electrical components's damage.
A gap is formed between the guide block and the inner wall of the protection box, a plurality of metal brushes are arranged on the guide block, and the metal brushes are arranged in the gap; the during operation, through brush and the contact of guard box inner wall, reduce the heat that guide block and guard box inner wall direct contact produced, reduce the degree of wear, simultaneously, the clearance that sets up makes gaseous just with the circulation, has accelerateed the heat dissipation, and metal brush has improved the radiating effect of sliding contact in-process.
The invention has the following beneficial effects:
1. the protective box is close to a human body through left-right sliding when moving, so that the equipment can be conveniently moved, the ankle cannot be collided, and the injury is avoided; the universal wheel is locked, so that the equipment is not deviated, and the use stability is ensured; through pushing back the intermediate position with the guard box, avoid the use to take place the slope, stability when improving the use.
2. According to the invention, the ascending of the liquid crystal display screen is realized by changing the horizontal rotation of the first spring into the vertical rotation, and the liquid crystal display screen has the advantages of simple and light structure, strong mobility and lower cost; the smooth circular arc structure of L shape guide way has reduced the frictional force that produces with the pore wall when the spring turns to, reduces and generates heat, prolongs the life of spring.
3. According to the invention, the first spring and the blind hole inner convex block rotate relatively, so that the sliding panel is lifted upwards, the structure is simple, the use is convenient, the convenience of using the teaching equipment at any time is improved, and the practicability of the teaching equipment is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic structural view of the expansion plate of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
in the figure: the air bag comprises a bottom plate 1, a protection box 2, a first air hole 21, a second air hole 22, a first spring 3, a guide block 4, an L-shaped guide channel 41, a sliding panel 5, a liquid crystal display screen 51, a blind hole 52, a convex block 53, a sixth through hole 54, a guide sliding block 6, a metal brush 61, a third through hole 7, an expansion plate 8, a strip-shaped sponge 81, a magnet block 82, an elastic cloth strip 83, a sealing element 9, a fourth through hole 91, a fifth through hole 92, a corrugated pipe 10 and an air bag 11.
Detailed Description
An university teaching device according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1, fig. 2, fig. 3 and fig. 6, the teaching equipment for colleges and universities according to the present invention comprises a bottom plate 1 and universal wheels fixed on the bottom plate 1, wherein a chute is arranged at the upper end of the bottom plate 1, and a protection box 2 is slidably connected in the chute; the front surface and the rear surface of the protection box 2 are respectively provided with a handle, the interior of the protection box 2 is of a hollow structure, and a double-head motor which is horizontally arranged is arranged at the symmetrical center of the bottom in the protection box 2; a first spring 3 is fixedly connected to each of two output shafts of the double-head motor; two ends of the bottom in the protection box 2 are symmetrically fixed with a guide block 4 around the double-head motor; an L-shaped guide channel 41 is arranged in the guide block 4, and the L-shaped guide channel 41 is of a smooth arc structure; one end of the first spring 3 is driven by being connected with a double-end motor, the other end of the first spring 3 penetrates through the L-shaped guide channel 41 to be vertically arranged upwards, and the rotating directions of the two first springs 3 are opposite; a sliding panel 5 is connected in the protection box 2 in a sliding way; a liquid crystal display screen 51 is embedded on the sliding panel 5, a guide sliding block 6 with an arc-shaped cross section is arranged between the sliding panel 5 and the left side wall and the right side wall of the protection box 2, two blind holes 52 are symmetrically and vertically arranged on the sliding panel 5 relative to the liquid crystal display screen 51, and the sliding panel 5 is sleeved on the two first springs 3 through the two blind holes 52; two convex blocks 53 are arranged in the blind hole 52 in the vertical direction, and the convex blocks 53 are arranged between the spiral spaces of the first spring 3; a corrugated pipe 10 is connected below the guide sliding block 6, the lower end of the corrugated pipe 10 is connected to the guide block 4, and air bags 11 are arranged among the corrugated spaces of the corrugated pipe 10; the coils of the first spring 3 are in contact with the air bag 11; the air bag 11 is provided with an air hole;
when the teaching device works, a user pulls the teaching device to a use position through the handle, and in order to prevent the ankle from being collided during the moving process of the bottom plate 1 during the pulling process, the protection box 2 is pulled to one side close to the human body along the sliding groove, so that the device is convenient to move, the ankle cannot be collided, and the injury is avoided; when the universal wheel is pulled to a designated position, the universal wheel is locked, so that the position of the equipment cannot deviate in the use process, and the use stability is ensured; then the protection box 2 is pushed back to the middle position of the bottom plate through the handle, so that the inclination in the use process is avoided, and the stability in use is improved; after the position of the protection box 2 is fixed, the controller controls the double-head motor to drive the two first springs 3 to rotate, the first springs 3 are changed from rotation in the horizontal direction to rotation in the vertical direction under the guiding action of the L-shaped guide channels 41 in the guide blocks 4, and the protection box is simple and light in structure, strong in mobility and low in cost; the first spring 3 has good bending performance, and ensures the stability of the structure while ensuring that the turning and the rotation can be stably carried out; the smooth arc structure of the L-shaped guide channel 41 reduces the friction force generated between the spring and the hole wall when the spring turns, reduces the heat generation and prolongs the service life of the spring; the first spring 3 and the inner convex block 53 of the blind hole 52 rotate relatively, so that the sliding panel 5 drives the liquid crystal display screen 51 to rise upwards along the inner wall of the protection box 2 under the guiding action of the guiding sliding block 6, and the double-head motor stops rotating after the liquid crystal display screen is lifted to a specified position, thereby facilitating the use, improving the convenience of using the teaching equipment at any time and improving the practicability of the teaching equipment; when the guide sliding block 6 moves downwards to extrude the corrugated pipe 10, the corrugated pipe 10 compresses and extrudes the air bag 11 together with the first spring 3, on one hand, the first spring 3 is extruded through the corrugated pipe 10, so that the first spring 3 is not bent when rotating, and the working stability is improved; on the other hand, after being extruded, the gas in the airbag 11 is blown to the first spring 3 and the bellows 10, so that the friction between the first spring 3 and the bellows 10 is reduced.
As shown in fig. 1, a first air hole 21 and a second air hole 22 penetrating through the protection box 2 are arranged at the bottom of the protection box 2; the first air hole 21 and the second air hole 22 are arranged between the guide block 4 and the double-head motor, two groups of the first air hole 21 and the second air hole 22 are respectively arranged, the two groups of the first air hole 21 and the two groups of the second air hole 22 are arranged in a mirror image mode about the double-head motor, the first air hole 21 is arranged close to the guide block 4, the upper end of the first air hole 21 inclines towards the direction of the guide block 4, the second air hole 22 is arranged close to the double-head motor, and the upper end of the second air hole 22 inclines towards the direction of the double-head motor; a third through hole 7 which is respectively communicated with the first air hole 21 and the second air hole 22 is arranged on the bottom plate 1; when the sliding panel 5 is pushed out with the liquid crystal display screen 51, a similar closed space formed in the protection box 2 is gradually increased, gas is sucked into the protection box 2 through the third through hole 7 through the first air hole 21 and the second air hole 22 respectively, the sucked gas is blown into the L-shaped guide channel 41 through the obliquely arranged first air hole 21, the L-shaped guide channel 41 and the first spring 3 are cooled and cooled, the heat dissipation effect of the L-shaped guide channel 41 is improved, the service life of the first spring 3 is prolonged, and the L-shaped guide channel 41 and the first spring 3 are prevented from generating heat due to friction and damage caused by poor heat dissipation; no. two gas pockets 22 that the slope set up will inhale gas and blow to the double-end motor output, cool off double-end motor, prolong double-end motor's life.
As shown in fig. 2, 4 and 5, two expansion plates 8 are symmetrically arranged between two springs 3 in the protection box 2; the upper end of the telescopic plate 8 is connected with the sliding panel 5, the lower end of the telescopic plate 8 is fixed on the guide block 4, the telescopic plate 8 is provided with three stages, a strip-shaped sponge 81 is arranged between the telescopic plate 8 at the lowest part and the upper end of the telescopic plate 8 at the uppermost part, and a magnet block 82 is embedded on one side of the telescopic plate 8 close to the first spring 3; when the lifting device works, the telescopic plate 8 plays a supporting role for the sliding panel 5, the telescopic plate 8 assists the sliding panel 5 to lift, so that the lifting process is more stable, and when the lifting device is static, the telescopic plate 8 fixedly supports the sliding panel 5, so that the use stability of the device is improved; simultaneously for avoiding a spring 3 to rotate the in-process and take place crooked, the magnet piece 82 that utilizes the setting attracts a spring 3 to be close to expansion plate 8 to play certain supporting role to a spring 3 through strip sponge 81, avoid crooked to 5 directions of sliding panel, further improve the stability of using.
As shown in fig. 1 and 4, a sealing member 9 is arranged between the guide blocks 4; an elastic cloth strip 83 with the same width as the upper part of the expansion plate 8 is arranged between the upper part of the expansion plate 8 and the sealing element 9; a fourth through hole 91 and a fifth through hole 92 are formed in the sealing element 9; the fourth through hole 91 and the fifth through hole 92 are arranged between the guide block 4 and the double-head motor, two groups of the fourth through hole 91 and two groups of the fifth through hole 92 are respectively arranged, two groups of the fourth through hole 91 are arranged in a mirror image mode about the double-head motor, two groups of the fifth through hole 92 are arranged in a mirror image mode about the double-head motor, the fourth through hole 91 is arranged close to the guide block 4, the lower end of the fourth through hole 91 is inclined towards the direction of the guide block 4, the fifth through hole 92 is arranged close to the double-head motor, and the lower end of the fifth through hole 92 is inclined towards; during operation, through sealing member 9 and the elasticity cloth 83 that sets up, enclose into approximate inclosed space with the space on sealing member 9 upper portion, when sliding panel 5 withdraws, the space on sealing member 9 upper portion is compressed, gaseous from No. four perforating hole 91 and No. five perforating hole 92 discharge, the combustion gas is blown on guide block 4 and double-end motor through No. four perforating hole 91 and No. five perforating hole 92 correspondences that the slope set up, cool off L shape guide channel 41 and double-end motor, the cooling effect of L shape guide channel 41 is improved, the life of spring 3 and double-end motor has been improved.
As shown in fig. 1, a six-gauge through hole 54 is formed in the upper portion of the blind hole 52; the sixth through hole 54 penetrates and connects the inner space of the blind hole 52 and the outer space of the sliding panel 5, and the sixth through hole 54 is arranged obliquely downwards; during operation, when sliding panel 5 withdraws, the gas between expansion plate and guard box 2 inner wall is discharged from No. six perforating holes 54 above blind hole 52 after being extruded, and gas exhaust's in-process cools off, cools down the position of a spring 3 and lug 53 contact, reduces the wearing and tearing between a spring 3 and the lug 53, prolongs the life of a spring 3 and lug 53, simultaneously, cools off the electrical components in liquid crystal display 51, further reduces electrical components's damage.
As shown in fig. 3, a gap is formed between the guide sliding block 6 and the inner wall of the protection box 2, a plurality of metal brushes 61 are arranged on the guide sliding block 6, and the metal brushes 61 are arranged in the gap; during operation, through brush and the contact of 2 inner walls of guard box, reduce the heat that direction slider 6 and the production of 2 inner wall direct contacts of guard box, reduce the degree of wear, simultaneously, the clearance that sets up makes gaseous just with the circulation, has accelerateed the heat dissipation, and metal brush 61 has improved the radiating effect of sliding contact in-process.
The specific working process is as follows:
when the teaching device works, a user pulls the teaching device to a use position through the handle, and in order to prevent the ankle from being collided during the moving process of the bottom plate 1 during the pulling process, the protection box 2 is pulled to one side close to the human body along the sliding groove, so that the device is convenient to move, the ankle cannot be collided, and the injury is avoided; when the universal wheel is pulled to a designated position, the universal wheel is locked, so that the position of the equipment cannot deviate in the use process, and the use stability is ensured; then the protection box 2 is pushed back to the middle position of the bottom plate through the handle, so that the inclination in the use process is avoided, and the stability in use is improved; after the position of the protection box 2 is fixed, the controller controls the double-head motor to drive the two first springs 3 to rotate, the first springs 3 are changed from rotation in the horizontal direction to rotation in the vertical direction under the guiding action of the L-shaped guide channels 41 in the guide blocks 4, and the protection box is simple and light in structure, strong in mobility and low in cost; the first spring 3 has good bending performance, and ensures the stability of the structure while ensuring that the turning and the rotation can be stably carried out; the smooth arc structure of the L-shaped guide channel 41 reduces the friction force generated between the spring and the hole wall when the spring turns, reduces the heat generation and prolongs the service life of the spring; the first spring 3 and the inner convex block 53 of the blind hole 52 rotate relatively, so that the sliding panel 5 drives the liquid crystal display screen 51 to rise upwards along the inner wall of the protection box 2 under the guiding action of the guiding sliding block 6, and the double-head motor stops rotating after the liquid crystal display screen is lifted to a specified position, thereby facilitating the use, improving the convenience of using the teaching equipment at any time and improving the practicability of the teaching equipment; when the guide sliding block 6 moves downwards to extrude the corrugated pipe 10, the corrugated pipe 10 compresses and extrudes the air bag 11 together with the first spring 3, on one hand, the first spring 3 is extruded through the corrugated pipe 10, so that the first spring 3 is not bent when rotating, and the working stability is improved; on the other hand, after being extruded, the gas in the airbag 11 is blown to the first spring 3 and the bellows 10, so that the friction between the first spring 3 and the bellows 10 is reduced.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides a colleges and universities teaching equipment, includes bottom plate (1) and fixes the universal wheel on bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is provided with a sliding chute, and a protection box (2) is connected in the sliding chute in a sliding manner; the front surface and the rear surface of the protection box (2) are respectively provided with a handle, the protection box (2) is internally of a hollow structure, and a double-end motor which is horizontally arranged is arranged at the symmetrical center of the bottom in the protection box (2); a first spring (3) is fixedly connected to each of two output shafts of the double-head motor; two ends of the bottom in the protection box (2) are symmetrically fixed with a guide block (4) around the double-head motor; an L-shaped guide channel (41) is arranged in the guide block (4), and the L-shaped guide channel (41) is of a smooth arc structure; one end of the first spring (3) is driven by being connected with the double-end motor, the other end of the first spring (3) penetrates through the L-shaped guide channel (41) to be vertically and upwards arranged, and the rotating directions of the two first springs (3) are opposite; a sliding panel (5) is connected in the protection box (2) in a sliding way; a liquid crystal display screen (51) is embedded on the sliding panel (5), a guide sliding block (6) with an arc-shaped section is arranged between the sliding panel (5) and the left side wall and the right side wall of the protection box (2), two blind holes (52) are symmetrically and vertically arranged on the sliding panel (5) relative to the liquid crystal display screen (51), and the sliding panel (5) is sleeved on the two first springs (3) through the two blind holes (52); two convex blocks (53) are arranged in the blind hole (52) in the vertical direction, and the convex blocks (53) are arranged between the spiral spaces of the first spring (3); a corrugated pipe (10) is connected below the guide sliding block (6), the lower end of the corrugated pipe (10) is connected to the guide block (4), and air bags (11) are arranged among the corrugated spaces of the corrugated pipe (10); the coil of the first spring (3) is in contact with the air bag (11); the air bag (11) is provided with air holes.
2. A college teaching device according to claim 1, wherein: a first air hole (21) and a second air hole (22) which penetrate through the protection box (2) are formed in the bottom of the protection box (2); the first air hole (21) and the second air hole (22) are arranged between the guide block (4) and the double-end motor, two groups of the first air hole (21) and the second air hole (22) are respectively arranged, the two groups of the first air holes (21) are arranged relative to the double-end motor in a mirror image mode, the two groups of the second air holes (22) are arranged relative to the double-end motor in a mirror image mode, the first air hole (21) is arranged close to the guide block (4), the upper end of the first air hole (21) inclines towards the direction of the guide block (4), the second air hole (22) is arranged close to the double-end motor, and the upper end of the second air hole (22) inclines towards the direction of; and a third through hole (7) which is respectively communicated with the first air hole (21) and the second air hole (22) is arranged on the bottom plate (1).
3. A college teaching device according to claim 1, wherein: two expansion plates (8) are symmetrically arranged between two springs (3) in the protection box (2); the upper end and the sliding panel (5) of expansion plate (8) are connected, and the lower extreme of expansion plate (8) is fixed on guide block (4), and expansion plate (8) are provided with the tertiary, are equipped with strip sponge (81) between expansion plate (8) of bottommost portion and expansion plate (8) upper end on top, and it has magnet piece (82) to inlay on one side that expansion plate (8) are close to a spring (3).
4. A college teaching device according to claim 3 wherein: a sealing element (9) is arranged between the guide blocks (4); an elastic cloth strip (83) with the same width as the upper part of the telescopic plate (8) is arranged between the upper part of the telescopic plate (8) and the sealing element (9); a fourth through hole (91) and a fifth through hole (92) are formed in the sealing element (9); no. four perforating hole (91) and No. five perforating hole (92) set up between guide block (4) and double-end motor, No. four perforating hole (91) and No. five perforating hole (92) are provided with two sets ofly respectively, two sets of No. four perforating hole (91) set up about the double-end motor mirror image, two sets of No. five perforating hole (92) set up about the double-end motor mirror image, No. four perforating hole (91) are close to guide block (4) and set up, and the lower extreme of No. four perforating hole (91) inclines to guide block (4) direction, No. five perforating hole (92) are close to the double-end motor and set up, and the lower extreme of No. five perforating hole (92) inclines to.
5. A college teaching device according to claim 1, wherein: a six-number through hole (54) is formed in the upper part of the blind hole (52); the six-number through hole (54) penetrates through and connects the inner space of the blind hole (52) and the outer space of the sliding panel (5), and the six-number through hole (54) is obliquely arranged downwards.
6. A college teaching device according to claim 1, wherein: the guide sliding block (6) and the inner wall of the protection box (2) are provided with a gap, the guide sliding block (6) is provided with a plurality of metal brushes (61), and the metal brushes (61) are arranged in the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201889.2A CN110030465B (en) | 2019-03-18 | 2019-03-18 | Colleges and universities' teaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201889.2A CN110030465B (en) | 2019-03-18 | 2019-03-18 | Colleges and universities' teaching equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110030465A CN110030465A (en) | 2019-07-19 |
| CN110030465B true CN110030465B (en) | 2020-10-09 |
Family
ID=67236160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201889.2A Active CN110030465B (en) | 2019-03-18 | 2019-03-18 | Colleges and universities' teaching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110030465B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063222A (en) * | 2019-12-31 | 2020-04-24 | 河南护理职业学院 | Multifunctional teaching demonstration device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9091393B2 (en) * | 2013-06-27 | 2015-07-28 | Ming Hua Huang | Lifting type support stand |
| CN107550004A (en) * | 2015-10-15 | 2018-01-09 | 陈萍 | Intelligent tutoring dais |
| CN108119734A (en) * | 2018-02-10 | 2018-06-05 | 清远韶兴新能源科技有限公司 | A kind of LED display |
| CN108150805A (en) * | 2018-02-19 | 2018-06-12 | 沈漪澜 | A kind of projection equipment of new media operation |
| CN109282120A (en) * | 2018-10-18 | 2019-01-29 | 吴扬华 | A kind of information data equipment and its application method |
-
2019
- 2019-03-18 CN CN201910201889.2A patent/CN110030465B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110030465A (en) | 2019-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110030465B (en) | Colleges and universities' teaching equipment | |
| CN111369837A (en) | Multifunctional display equipment for teaching of major for economic management | |
| CN209297665U (en) | A kind of radio remote controlled LED digital display screen | |
| CN213151882U (en) | Converter that radiating effect is good | |
| CN109686140B (en) | Teaching projecting apparatus based on thing networking | |
| CN219442565U (en) | LED display screen convenient to maintain | |
| CN206639138U (en) | A kind of efficient fixing device of computer hardware | |
| CN207523261U (en) | A kind of printer case with dust reduction capability | |
| CN115443000A (en) | Electric permanent magnetic chuck controller with good anti-seismic effect | |
| CN210024122U (en) | Teaching is with laser engraving machine demonstration operating means | |
| CN212061042U (en) | Wall-mounted industrial computer host without fan | |
| CN212649968U (en) | Low-consumption heat dissipation device for machine room equipment mounting bracket | |
| CN211315644U (en) | Intelligent guide table | |
| CN210800645U (en) | Projecting apparatus installing support for audio-visual education programme | |
| CN207688253U (en) | Ceiling machine | |
| CN209265870U (en) | A kind of open air large-size screen monitors touch integrated advertising machine | |
| CN215068704U (en) | Multimedia presentation device for Chinese teaching based on thing networking | |
| CN216013928U (en) | Multimedia projector with good heat dissipation function | |
| CN209251912U (en) | A kind of dust-proof lifting table arrangement | |
| CN213638499U (en) | Multifunctional student machine | |
| CN108417353A (en) | A kind of miniature transformer heat dissipation structure | |
| CN211236558U (en) | Projection screen based on thing networking | |
| CN206145376U (en) | Projecting apparatus mounting platform of industrial and commercial enterprise management usefulness | |
| CN211669596U (en) | Computer remote control device | |
| CN210980315U (en) | Air conditioning unit with conveniently-installed fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |