CN215341455U

CN215341455U - A multimedia teaching device for university student's innovation venture education

Info

Publication number: CN215341455U
Application number: CN202121608574.9U
Authority: CN
Inventors: 李菁菁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-28
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a multimedia teaching device for university student innovation and entrepreneur education, which comprises a projection plate and a supporting device, wherein the center of the top end of the outer wall of the projection plate is fixedly connected with the bottom end of the outer wall of a cavity plate, and the rear ends of the side walls of the left side and the right side of the projection plate respectively rotate one side of a continuous writing plate; the supporting device comprises a placing table, the top end of the placing table is fixedly connected with the bottom end of the outer wall of the projection plate, and the left side and the right side of the bottom end of the placing table are fixedly connected with the top ends of the lifting columns respectively. Drive first threaded rod through rotating the motor and rotate, and the cavity post with first threaded rod screw-thread fit drives the projection board and rises, makes the projection board rise to appointed height, and the lift post slides in the support column simultaneously, and the change of cooperation projection board height increases the stability of device altitude mixture control, and two stop screw are rotated to the rethread, thereby stop screw and fixed plate screw-thread fit drive the backup pad and descend, make two backup pad contact ground, make things convenient for the pulley to drag from ground, realize the monolithic stationary of device.

Description

A multimedia teaching device for university student's innovation venture education

Technical Field

The utility model relates to the field of university student teaching, in particular to a multimedia teaching device for university student innovation and entrepreneurship education.

Background

With the development of society and the continuous progress of science and technology, teachers also adopt multimedia teaching more, and particularly, ideology and politics are more convenient to use multimedia, and the multimedia teaching is more vivid compared with monotonous blackboard teaching.

The projection board height that current teaching device set up is difficult to nimble the regulation to inconvenient removal appoints teaching place after-fixing, current teaching device does not have the cleanness to the projection board simultaneously, causes the dust easily to remain on the projection board surface, influences the projection effect. Therefore, the multimedia teaching device for the innovative entrepreneurship education of the college students is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

The multimedia teaching device for the university student innovation and entrepreneur education is provided in the embodiment and used for solving the problem that the height of the device in the prior art is difficult to flexibly adjust.

According to one aspect of the utility model, the multimedia teaching device for the innovation and creation education of college students comprises a projection plate and a supporting device, wherein the center of the top end of the outer wall of the projection plate is fixedly connected with the bottom end of the outer wall of a cavity plate, and the rear ends of the side walls of the left side and the right side of the projection plate respectively rotate one side of a continuous writing plate;

the supporting device comprises a placing table, the top end of the placing table is fixedly connected with the outer wall bottom of the projection plate, the left side and the right side of the bottom end of the placing table are respectively fixedly connected with the top end of a lifting column, the left side and the right side of the placing table are respectively fixedly connected with a positioning plate and two lifting column bottoms are respectively slidably sleeved in supporting column inner cavities, two pulleys are respectively fixedly connected with the front side and the rear side of the supporting column outer wall bottom and are respectively fixedly connected with the bottom end of a spring and two springs are respectively slidably sleeved in the supporting column inner cavities.

Furthermore, the bottom ends of the left side and the right side of the outer wall of the support column are respectively and fixedly connected with the left end and the right end of the fixed plate, the centers of the left side and the right side of the fixed plate are respectively in threaded sleeve joint and penetrate through the top ends of the limit screws, and the bottom ends of the two limit screws are respectively rotated to be connected with the center of the top end of the support plate.

Further, fixed plate center department fixedly cup joints and rotates the motor, rotate motor output fixed connection first threaded rod bottom, first threaded rod top thread cup joints in cavity post inner chamber bottom, platform bottom center department is placed to cavity post outer wall top fixed connection.

Furthermore, two magnetic stripes in the vertical direction are respectively embedded on one side, far away from the projection plate, of the writing board, and the two magnetic stripes are connected through magnetic force.

Further, the logical groove of vertical direction has been inlayed respectively at both ends about the projection board front side, two it slides respectively to lead to the groove and cup joints and runs through the slider, two both ends about the clean board rear side of slider front side fixed connection respectively, just sliding connection projection board outer wall front side behind the clean board.

And furthermore, the rear sides of the sliding blocks are respectively fixedly connected with the left end and the right end of the front side of the lifting plate, the left end and the right end of the rear side of the lifting plate are respectively fixedly connected with a limiting block, the limiting blocks are respectively sleeved in a limiting groove inner cavity in a sliding mode, and the limiting grooves are respectively vertically embedded in the left end and the right end of the rear side of the inner wall of the projection plate.

Furthermore, the left side and the right side of the lifting plate are respectively in threaded sleeve joint and penetrate through second threaded rods, the bottom ends of the second threaded rods are respectively rotatably connected with the left side and the right side of the bottom end of the inner wall of the projection plate, the top ends of the second threaded rods are respectively rotatably connected with the left side and the right side of the bottom end of the cavity plate and penetrate through the left side and the right side of the bottom end of the cavity plate, and the top ends of the second threaded rods are fixedly sleeved with first bevel gears.

Furthermore, two first bevel gears are meshed with second bevel gears, the second bevel gears are fixedly sleeved on the left side and the right side of the rotating shaft respectively, the left end and the right end of the rotating shaft are rotatably connected with the left side and the right side of the inner wall of the cavity plate respectively, and one side of the rotating shaft is fixedly connected with one end of a turntable.

Through the embodiment of the utility model, the supporting mechanism is adopted, so that the problem that the height of the device is difficult to flexibly adjust is solved, and the device is convenient to move and fix.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present invention;

FIG. 3 is a schematic view of a connection structure of a projection board according to an embodiment of the present invention;

fig. 4 is a top view of the inner structure of the projection plate according to an embodiment of the present invention.

In the figure: 1. the projection plate, 2, clean board, 3, cavity board, 4, logical groove, 5, board, 6, locating plate, 7, cavity post, 8, first threaded rod, 9, rotation motor, 10, fixed plate, 11, stop screw, 12, backup pad, 13, pulley, 14, spring, 15, support column, 16, lift post, 17, place the platform, 18, magnetic stripe, 19, slider, 20, second threaded rod, 21, lifter plate, 22, spacing groove, 23, stopper, 24, first bevel gear, 25, pivot, 26, second bevel gear, 27, carousel.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The support mechanism in this embodiment can be applied to various teaching apparatuses, for example, the following teaching apparatus is provided in this embodiment, and the support mechanism in this embodiment can be used to support the following teaching apparatus.

The teaching device comprises a base shell, universal wheels, a heat dissipation device, a projector bin, an upper cover shell, a handle, a lifting device and an angle adjusting device, wherein the universal wheels are arranged on the lower wall of the base shell; the angle adjusting device comprises a left angle adjusting hydraulic machine, a right angle adjusting hydraulic machine and a supporting plate, wherein the fixed end of the left angle adjusting hydraulic machine is arranged on the left side of the inner bottom wall of the base shell, the fixed end of the right angle adjusting hydraulic machine is arranged on the right side of the inner bottom wall of the base shell, and the supporting plate is arranged on the movable end of the left angle adjusting hydraulic machine and the movable end of the right angle adjusting hydraulic machine. The lifting device comprises a lifting hydraulic machine, a left telescopic supporting rod and a right telescopic supporting rod, one end of the left telescopic supporting rod is arranged on the left side of the supporting plate, one end of the right telescopic supporting rod is arranged on the right side of the supporting plate, the fixed end of the lifting hydraulic machine is arranged at the central position of the supporting plate, and the projector bin is arranged at the movable end of the lifting hydraulic machine, the other end of the left telescopic supporting rod and the other end of the right telescopic supporting rod. The heat dissipation device comprises a driving motor, a motor protection bin, a heat dissipation bin and a heat dissipation fan, wherein the heat dissipation bin is arranged on the bottom wall of the projector bin, the motor protection bin is arranged in the heat dissipation bin, the driving motor is arranged in the motor protection bin, the output shaft end of the driving motor is connected with the heat dissipation fan, and the heat dissipation fan is arranged on the bottom wall of the projector bin. The base shell is arranged in a hollow cavity, and the upper cover shell is arranged in a hollow cavity. The left telescopic supporting rod is a telescopic supporting rod, and the right telescopic supporting rod is a telescopic supporting rod.

Of course, the present embodiment can also be used to support teaching devices of other structures. Here, a description is not repeated, and a teaching apparatus according to an embodiment of the present invention is described below.

Referring to fig. 1-4, a multimedia teaching device for university student innovation and creation education comprises a projection plate 1 and a supporting device, wherein the center of the top end of the outer wall of the projection plate 1 is fixedly connected with the bottom end of the outer wall of a cavity plate 3, and the rear ends of the side walls of the left side and the right side of the projection plate 1 respectively rotate one side of a continuous writing plate 5;

the supporting device comprises a placing table 17, the bottom end of the outer wall of the top end of the placing table 17 is fixedly connected with the bottom end of the outer wall of the projection plate 1, the top ends of the left side and the right side of the bottom end of the placing table 17 are fixedly connected with lifting columns 16 respectively, the left side and the right side of the placing table 17 are fixedly connected with positioning plates 6 respectively, the two sides of the lifting columns 16 are respectively slidably sleeved in inner cavities of supporting columns 15 respectively, the two sides of the front and the back of the outer wall of the supporting columns 15 are respectively fixedly connected with pulleys 13 and springs 14, the two ends of the bottom centers of the inner walls of the supporting columns 15 are respectively fixedly connected with the bottom ends of the lifting columns 16 and the two tops of the springs 14 are respectively slidably sleeved in the inner cavities of the supporting columns 15.

The bottom ends of the left side and the right side of the outer wall of the supporting column 15 are respectively fixedly connected with the left end and the right end of a fixing plate 10, the centers of the left side and the right side of the fixing plate 10 are respectively in threaded sleeve connection and penetrate through the top ends of limiting screw rods 11, the bottom ends of the two limiting screw rods 11 are respectively rotatably connected with the center of the top end of a supporting plate 12, so that the whole device is convenient to fix, a rotating motor 9 is fixedly sleeved at the center of the fixing plate 10, the output end of the rotating motor 9 is fixedly connected with the bottom end of a first threaded rod 8, the top end of the first threaded rod 8 is in threaded sleeve connection with the bottom end of an inner cavity of a cavity column 7, the top end of the outer wall of the cavity column 7 is fixedly connected with a placing table 17, the height of a projection plate 1 is driven by rotating the motor 9 to be adjusted, magnetic stripes 18 in the vertical direction are respectively embedded at one side of the two writing plates 5 far away from the projection plate 1, the two magnetic stripes 18 are connected through magnetic force, so that the two writing plates 5 can be conveniently folded and fixed, the left end and the right end of the front side of the projection plate 1 are respectively embedded with a through groove 4 in the vertical direction, the two through grooves 4 are respectively in sliding sleeve joint and penetrate through a sliding block 19, the front side of the two sliding blocks 19 is respectively and fixedly connected with the left end and the right end of the rear side of a cleaning plate 2, the rear side of the cleaning plate 2 is in sliding connection with the front side of the outer wall of the projection plate 1, the cleaning plate 2 and a lifting plate 21 are conveniently connected through the sliding block 19, the rear side of the two sliding blocks 19 is respectively and fixedly connected with the left end and the right end of the front side of the lifting plate 21, the left end and the right end of the rear side of the lifting plate 21 are respectively and fixedly connected with a limiting block 23, the two limiting blocks 23 are respectively in sliding sleeve joint in an inner cavity of a limiting groove 22, the two limiting grooves 22 are respectively and vertically embedded at the left end and the right end of the rear side of the inner wall of the projection plate 1, the lifting plate 21 is limited, the stability of the lifting plate in the lifting process is increased, the left side and the lifting plate 21 are respectively in threaded sleeve joint and penetrate through a second threaded sleeve joint and the second threaded rod 20, two the second threaded rod 20 bottom rotates respectively and connects the 1 inner wall bottom left and right sides of projection board, two the second threaded rod 20 top rotates respectively to connect and runs through the 3 bottom left and right sides of cavity board, two first bevel gear 24 is fixed cup jointed to second threaded rod 20 top, rotates through first bevel gear 24 and drives cleaning plate 2 and go up and down cleanly, two first bevel gear 24 meshing cooperation second bevel gear 26, two second bevel gear 26 is fixed cup joint respectively in the 25 left and right sides of pivot 25, both ends rotate respectively about the pivot 25 and connect the 3 inner wall left and right sides of cavity board, just pivot 25 one side fixed connection carousel 27 one end rotates through carousel 27 and drives first bevel gear 24 and rotate.

When the device is used, electrical components appearing in the device are externally connected with a power supply and a control switch, a teacher can push the device to a specified teaching place through the pulley 13, the rotating motor 9 is started according to the on-site requirement, the rotating motor 9 drives the first threaded rod 8 to rotate, the cavity column 7 in threaded fit with the first threaded rod 8 drives the projection plate 1 to ascend under the limitation of the ascending and descending column 16, the projection plate 1 is ascended to a specified height, meanwhile, the ascending and descending column 16 slides in the supporting column 15, the stability of height adjustment of the device is improved by matching with the change of the height of the projection plate 1, the two limiting screw rods 11 are rotated, the limiting screw rods 11 are in threaded fit with the fixing plate 10 to drive the supporting plates 12 to descend, the two supporting plates 12 are in contact with the ground, the pulley 13 is conveniently dragged away from the ground, the integral fixation of the device is realized, and by arranging the two writing plates 5, when the writing board 5 is clamped with the positioning plate 6, the opening of the writing board 5 is realized, when the two magnetic strips 18 are connected through magnetic force, the folding and closing of the writing board 5 are realized, the occupied area of the writing board 5 is reduced, the writing board 5 is matched with the projection board 1, so that the teacher can conveniently explain the writing on the writing board, the teaching effect is enhanced, when the chalk dust falls on the projection plate 1, by rotating the turntable 27, the turntable 27 rotates the rotating shaft 25, the rotating shaft 25 rotates the second bevel gear 26, the first bevel gear 24 engaged with the second bevel gear 26 rotates, the first bevel gear 24 rotates the second threaded rod 20, and the lifting plate 21 in threaded fit with the second threaded rod 20 descends along the second threaded rod 20, the lifting plate 21 drives the cleaning plate 2 to slide downwards along the surface of the projection plate 1 through the sliding block 19, the cleaning of the dust on the surface of the projection plate 1 by the cleaning plate 2 is realized, and the projection effect is not influenced by the dust.

The utility model has the advantages that:

1. the device is simple to operate, the rotating motor is started to rotate, the rotating motor drives the first threaded rod to rotate, the cavity column in threaded fit with the first threaded rod drives the projection plate to ascend under the limitation of the lifting column, so that the projection plate is lifted to a designated height, meanwhile, the lifting column slides in the supporting column, the height of the projection plate is changed in a matched mode, the stability of height adjustment of the device is improved, the two limiting screw rods are rotated, the limiting screw rods are in threaded fit with the fixing plate to drive the supporting plates to descend, the two supporting plates are in contact with the ground, the pulley is convenient to pull away from the ground, and the integral fixation of the device is achieved;

2. the utility model has reasonable structure, realizes the opening of the writing board by arranging the two writing boards and clamping the writing boards and the positioning board, when the two magnetic stripes are connected through magnetic force, the folding and closing of the writing board are realized, the occupied area of the writing board is reduced, the writing board is matched with the projection board through the writing board, a teacher can conveniently explain the writing on the writing board, the teaching effect is enhanced, when the chalk dust falls on the projection plate, the rotating disc drives the rotating shaft to rotate by rotating the rotating disc, the rotating shaft drives the second bevel gear to rotate, the first bevel gear meshed and matched with the second bevel gear rotates along with the first bevel gear, the first bevel gear drives the second threaded rod to rotate, and the lifting plate in threaded fit with the second threaded rod descends along the second threaded rod, and the lifting plate drives the cleaning plate to slide downwards along the surface of the projection plate through the sliding block, so that the cleaning of the dust on the surface of the projection plate by the cleaning plate is realized, and the projection effect is ensured not to be influenced by the dust.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multimedia teaching device for university student's innovation foundation education which characterized in that: the projection plate comprises a projection plate (1) and a supporting device, wherein the center of the top end of the outer wall of the projection plate (1) is fixedly connected with the bottom end of the outer wall of a cavity plate (3), and the rear ends of the side walls of the left side and the right side of the projection plate (1) are respectively and rotatably connected with one side of a writing plate (5);

the supporting device comprises a placing table (17), the top end of the placing table (17) is fixedly connected with the outer wall bottom end of the projection plate (1), the left side and the right side of the bottom end of the placing table (17) are respectively fixedly connected with lifting columns (16) and the top end of the left side and the right side of the placing table (17) are respectively fixedly connected with positioning plates (6) and two lifting columns (16) and the bottom end of the lifting columns (16) are respectively sleeved with an inner cavity of a supporting column (15) in a sliding mode, two pulleys (13) are respectively fixedly connected with the front side and the rear side of the outer wall bottom end of the supporting column (15) and two springs (14) are respectively fixedly connected with the bottom end of the inner wall center of the supporting column (15) and are respectively sleeved with the bottom end of the lifting columns (16) and the springs (14) are respectively sleeved with the inner cavity of the supporting column (15) in a sliding mode.

2. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 1, characterized in that: both ends about both sides bottom difference fixed connection fixed plate (10) about support column (15) outer wall, fixed plate (10) left and right sides center department screw thread respectively cup joints and runs through limiting screw (11) top, two limiting screw (11) bottom rotates respectively and connects backup pad (12) top center department.

3. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 2, characterized in that: fixed plate (10) center department is fixed cup joints and is rotated motor (9), rotate motor (9) output fixed connection first threaded rod (8) bottom, first threaded rod (8) top screw cup joints in cavity post (7) inner chamber bottom, platform (17) bottom center department is placed to cavity post (7) outer wall top fixed connection.

4. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 1, characterized in that: two magnetic stripes (18) in the vertical direction are respectively embedded in one side, far away from the projection plate (1), of the writing plate (5), and the two magnetic stripes (18) are connected through magnetic force.

5. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 1, characterized in that: both ends have inlayed logical groove (4) of vertical direction respectively about projection board (1) front side, two it slides respectively to lead to groove (4) and cup joints and runs through slider (19), two both ends about slider (19) front side fixed connection cleaning plate (2) rear side respectively, just sliding connection projection board (1) outer wall front side behind cleaning plate (2).

6. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 5, characterized in that: two both ends about slider (19) rear side fixed connection lifter plate (21) front side respectively, both ends fixed connection stopper (23) respectively about lifter plate (21) rear side, two stopper (23) slide respectively and cup joint at spacing groove (22) inner chamber, two both ends about spacing groove (22) vertical embedding is respectively in projection board (1) inner wall rear side.

7. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 6, characterized in that: the left side and the right side of the lifting plate (21) are respectively in threaded socket joint and penetrate through the second threaded rods (20), the bottom ends of the second threaded rods (20) are respectively connected with the left side and the right side of the bottom end of the inner wall of the projection plate (1) in a rotating mode, the top ends of the second threaded rods (20) are respectively connected with the left side and the right side of the bottom end of the cavity plate (3) in a rotating mode, and the top ends of the second threaded rods (20) are fixedly in socket joint with the first bevel gears (24).

8. The multimedia teaching apparatus for university student innovative entrepreneurship education as claimed in claim 7, characterized in that: two first bevel gear (24) meshing cooperation second bevel gear (26), two fixed cup joint is respectively in pivot (25) left and right sides second bevel gear (26), both ends are rotated respectively and are connected cavity board (3) inner wall left and right sides about pivot (25), just pivot (25) one side fixed connection carousel (27) one end.