CN109043822B - Teaching platform with hidden projector - Google Patents
Teaching platform with hidden projector Download PDFInfo
- Publication number
- CN109043822B CN109043822B CN201810915310.4A CN201810915310A CN109043822B CN 109043822 B CN109043822 B CN 109043822B CN 201810915310 A CN201810915310 A CN 201810915310A CN 109043822 B CN109043822 B CN 109043822B
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- CN
- China
- Prior art keywords
- projection
- plate
- screen
- upper cover
- gear
- 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.)
- Expired - Fee Related
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/10—Reading-desks; Lecterns; Pulpits, i.e. free-standing characterised by association with auxiliary devices, e.g. paper clamps, line indicators
-
- 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
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a teaching platform with a hidden projector, which comprises platform legs and a platform surface, wherein the platform legs are fixed on the bottom surfaces of two sides of the platform surface, the bottom of the platform surface is also provided with a shell through bolts, and the top of the platform surface is respectively provided with a projection hole and a screen hole which are communicated with the inner cavity of the shell; when the elliptical plate rotates to the longest of vertical direction, the projection board will use the hinge to upwards rotate as the center, at this moment, will open the recess of upper cover plate, when the elliptical plate rotates to the longest of horizontal direction, the projection board will be closed with the recess of upper cover plate at this moment, reach and open and close projection probe through such a mode, projection probe will be towards the projection cloth on the blackboard, just in time with picture projection to projection cloth on, the teacher can operate the projected picture at the screen of screen board, the upper cover plate rises out when needing the projection, the screen board rotates out and comes at this moment and just can carry out the projection when the probe comes out, upper cover plate descends when not needing, the plank is rotatory last, make the mesa level and smooth.
Description
Technical Field
The invention relates to a teaching platform, in particular to a teaching platform with a hidden projector.
Background
When a mathematic teacher guides mathematic teaching, a drawing explanation and mathematic formula analysis are needed, when the blackboard writing teaching is guided, the mathematic teacher needs to carry out the blackboard writing in advance before class, the drawing amendment and the labeling can not be flexibly changed, a great deal of time and energy of mathematic teaching personnel need to be consumed, when the teaching of the test paper of students is carried out, the teaching paper is convenient to communicate and share with the students in time, and projection sharing is needed, but the prior teaching mode can not quickly and effectively solve the problem, thereby the classroom time is wasted, in the past, the working difficulty of the mathematic teaching personnel is greatly increased, the projector is used for projection, corresponding video signals can be played by connecting with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces, and the projector is widely applied to families, offices, schools and entertainment places, many times can use the projector to carry out ppt's show during present meeting, but the projector generally adorns at the top of wall, and when the projector takes place to damage, the maintenance operation is more troublesome, and the podium needs the desktop to level and smoothly conveniently carries out the lecture moreover.
Disclosure of Invention
In order to solve the existing problems, the invention aims to provide a teaching platform with a hidden projector, which has the advantages of convenience in maintenance, capability of projecting and keeping a desktop flat, and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hide teaching podium of projecting apparatus which its characteristics are: the table comprises table legs and a table top, wherein the table legs are fixed on the bottom surfaces of two sides of the table top, the bottom of the table top is also provided with a shell through bolts, and the top of the table top is respectively provided with a projection hole and a screen hole which are communicated with the inner cavity of the shell;
a servo motor, a sleeve ring and a support frame are respectively fixed on the bottom wall of the shell, a motor shaft is fixedly mounted at the output end of the servo motor, a first gear and a belt are sleeved on the outer peripheral surface of the motor shaft, a slotted hole is formed in the sleeve ring along the axis direction, a sleeve rod is movably connected in the sleeve ring, a rack is welded on the outer wall of the sleeve rod, which is in contact with the slotted hole, the top of the sleeve rod is connected with a projector, the rack is meshed with the first gear, a rotating shaft is movably connected to the top end, extending into the screen hole, of the support frame through a bearing, a belt groove is formed in the outer peripheral surface of the rotating shaft, a second gear is sleeved on the rotating;
the projection device is characterized in that an upper cover plate which can slide up and down in a projection hole is installed on the top end of the loop bar, a projection plate covers a groove formed in the edge diameter of the upper cover plate through a hinge, a projection probe connected with a projector is fixed on the lower surface of the projection plate, elliptical plates which can slide with the projection plate are movably connected to two sides of the groove of the upper cover plate, a screen plate and a wood plate are installed on a rotating pin penetrating through the screen hole, a third gear is sleeved on the outer peripheral surface of the rotating pin, and the third gear is meshed with a second gear.
Preferably, the screen plate and the wood plate have the same area and are adhered together, the screen plate faces outwards, and the rotating pin penetrates through the wood plate.
Preferably, when the screen on the screen plate faces upwards, the upper cover plate rises to the upper part of the table top.
Preferably, the elliptical plate rotates to drive the projection plate to rotate in an arc shape by taking the hinge as a center.
Preferably, the table top is provided with hole sites for accommodating the second gear and the third gear.
Compared with the prior art, the invention has the beneficial effects that:
1. the teaching platform of the hidden projector provided by the invention has the advantages that the elliptical plate is connected with the built-in micro motor of the upper cover plate, the micro motor can drive the elliptical plate to rotate after rotating, the elliptical plate rotates to drive the projection plate to rotate in an arc shape by taking the hinge as a center, the elliptical plate is connected with the projection plate in a sliding manner in the rotating process, when the elliptical plate rotates to the longest vertical direction, the projection plate rotates upwards by taking the hinge as the center, the groove of the upper cover plate is opened, when the elliptical plate rotates to the longest in the horizontal direction, the projection plate closes the groove of the upper cover plate, the projection probe is opened and closed in such a way, the projection probe moves along with the rotation of the projection plate, when the projection plate moves to the highest position, the projection probe can face the projection cloth on the blackboard and just project the picture on the projection cloth.
2. According to the teaching platform with the hidden projector, when the screen on the screen plate is upward, the upper cover plate is lifted to the upper side of the platform surface, the rotating pin penetrates through the wood plate, so that damage to the screen on the screen plate is avoided, the screen plate is just turned over to the outside to be horizontal to the platform surface when the upper cover plate is displaced to the highest point, a teacher can operate a projected picture on the screen plate, the upper cover plate is lifted out when projection is needed, the screen plate is rotated out when a probe is out, projection can be carried out at the moment, the upper cover plate is lowered when projection is not needed, and the wood plate is rotated to the upper side, so that the platform surface is flat.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is a closed state diagram of the present invention.
FIG. 3 is a diagram of the open state of the present invention.
Fig. 4 is an overall top view of the present invention.
Fig. 5 is a diagram of the collar and stem configuration of the present invention.
Fig. 6 is a close-up view of the projection panel of the present invention.
Fig. 7 is an opening view of the projection panel of the present invention.
In the figure: 1. a table leg; 2. a table top; 21. a projection hole; 22. a screen aperture; 221. a screen plate; 222. a wood board; 3. a housing; 31. a servo motor; 311. a motor shaft; 3111. a first gear; 3112. a belt; 32. a collar; 321. a slot; 322. a loop bar; 3221. a rack; 3222. a projector; 33. a support frame; 4. a rotating shaft; 41. a belt groove; 42. a second gear; 5. an upper cover plate; 51. a projection plate; 511. a projection probe; 52. an elliptical plate; 6. rotating the pin; 61. a third gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a teaching platform for hiding a projector comprises table legs 1 and a table top 2, wherein the table legs 1 are fixed on the bottom surfaces of two sides of the table top 2, the table legs 1 and the table top 2 are fixed into a whole, the table legs 1 play a supporting role for the table top 2, a shell 3 is further mounted at the bottom of the table top 2 through bolts, the shell 3 is very convenient to mount and dismount, a projection hole 21 and a screen hole 22 which are communicated with an inner cavity of the shell 3 are respectively formed in the top of the table top 2, the projection hole 21 and the screen hole 22 are parallel, and the projection hole 21 and the screen hole 22 are changeable in shape and are not in a fixed shape; a servo motor 31, a sleeve ring 32 and a support frame 33 are respectively fixed on the bottom wall of the shell 3, a motor shaft 311 is fixedly arranged on the output end of the servo motor 31, the servo motor 31 drives the motor shaft 311 to rotate after being started, a first gear 3111 and a belt 3112 are sleeved on the outer peripheral surface of the motor shaft 311, the motor shaft 311 drives the first gear 3111 and the belt 3112 to rotate at the same frequency, a slotted hole 321 is formed in the sleeve ring 32 along the axial direction, after the slotted hole 321 is opened, the inside of the sleeve ring 32 is communicated with the outside through the slotted hole 321, a rotating shaft 4 is movably connected on the top end of the support frame 33 extending to the screen hole 22 through a bearing, the rotating shaft 4 can rotate on the support frame 33, the bearing reduces the friction force generated when the rotating shaft 4 rotates, a belt groove 41 is formed on the outer peripheral surface of the rotating shaft 4, a second gear 42 is sleeved on the rotating shaft 4 beside the belt groove 41, the, the same frequency is applied to the rotation, and the other end of the belt 3112 is fitted in the belt groove 41, so that the rotation of the belt 3112 drives the rotation shaft 4 to rotate.
Referring to fig. 5, a loop bar 322 is movably connected in the loop 32, a bottom end of the loop bar 322 is embedded in the loop 32, a diameter of the loop bar 322 is slightly smaller than a diameter of the loop 32, which does not affect the up-and-down sliding of the loop bar 322 in the loop 32, a rack 3221 is welded on an outer wall of the loop bar 322 contacting with the slot 321, a width of the rack 3221 is smaller than a width of the slot 321, the rack 3221 is located in the slot 321 so that a tooth mouth portion of the rack 3221 is exposed outside the loop 32, a projector 3222 is connected to a top of the loop bar 322, the rack 3221 is engaged with the first gear 3111, the rack 3221 slides up and down while the first gear 3111 rotates, the projector 3222 moves up and down under the effect of the loop bar 322, and maintenance at the lower side is easier than maintenance at a high position.
Referring to fig. 6-7, an upper cover plate 5 sliding up and down in the projection hole 21 is installed on the top end of the loop bar 322, because the upper cover plate 5 needs to move up and down in the projection hole 21, the size of the upper cover plate 5 is slightly smaller than the projection hole 21, a projection plate 51 covers the groove opened on the edge diameter of the upper cover plate 5 through a hinge, the groove of the upper cover plate 5 can be covered after the projection plate 51 rotates downward, the groove of the upper cover plate 5 can be opened by rotating upward, a projection probe 511 connected with a projector 3222 is fixed on the lower surface of the projection plate 51, the projection probe 511 moves along with the rotation of the projection plate 51, when the projection probe 511 moves to the highest position, the projection probe 511 faces the projection cloth on the blackboard, just projects the picture onto the projection cloth, an elliptical plate 52 sliding with the projection plate 51 is movably connected to both sides of the groove of the upper cover plate 5, the elliptical plate 52 is connected with a micro motor arranged in the upper cover plate 5, the micro motor drives the elliptical plate 52 to rotate after rotating, the elliptical plate 52 rotates to drive the projection plate 51 to rotate in an arc shape by taking a hinge as a center, the elliptical plate 52 is connected with the projection plate 51 in a sliding manner in the rotating process, when the elliptical plate 52 rotates to the longest vertical direction, the projection plate 51 rotates upwards by taking the hinge as the center, at the moment, the groove of the upper cover plate 5 is opened, when the elliptical plate 52 rotates to the longest horizontal direction, the projection plate 51 closes the groove of the upper cover plate 5, the projection probe 511 is opened and closed in such a way, the screen plate 221 and the wood plate 222 are arranged on the rotating pin 6 penetrating through the screen hole 22, the screen plate 221 and the wood plate 222 have the same area and are adhered to each other, the screen plate 221 faces outwards, the rotating pin 6 penetrates through the wood plate 222, when the screen on the screen board 221 is upward, the upper cover plate 5 is lifted to the upper side of the table top 2, the rotating pin 6 penetrates through the wood board 222, the screen on the screen board 221 is prevented from being damaged, and the function of the arrangement is that when the upper cover plate 5 is displaced to the highest point, the screen panel 221 is just turned over to the outside to be horizontal with the table top 2, a teacher can operate the projected picture on the screen panel 221, the outer peripheral surface of the rotating pin 6 is sleeved with the third gear 61, the third gear 61 is meshed with the second gear 42, the table top 2 is provided with hole sites for accommodating the second gear 42 and the third gear 61, the second gear 42 and the third gear 61 cannot leak out, by the mode, the upper cover plate 5 is lifted out when projection is needed, the screen plate 221 is rotated out when the probe comes out, projection can be carried out at this time, the upper cover plate 5 is lowered when projection is not needed, and the wood plate 222 is rotated on the upper side, so that the table top 2 is flat.
In summary, in the teaching platform of the hidden projector provided by the present invention, the elliptical plate 52 is connected to the micro motor embedded in the upper cover plate 5, the micro motor rotates to drive the elliptical plate 52 to rotate, the elliptical plate 52 rotates to drive the projection plate 51 to rotate in an arc shape with the hinge as the center, the elliptical plate 52 is connected to the projection plate 51 in a sliding manner during the rotation process, when the elliptical plate 52 rotates to the longest vertical direction, the projection plate 51 rotates upward with the hinge as the center, at this time, the groove of the upper cover plate 5 is opened, when the elliptical plate 52 rotates to the longest horizontal direction, the projection plate 51 closes the groove of the upper cover plate 5, by such a way, the projection probe 511 is opened and closed, the projection probe 511 moves along with the rotation of the projection plate 51, when the projection probe 511 moves to the longest horizontal direction, the projection probe 511 faces the projection cloth on the blackboard, just in time with picture projection to projection cloth, when the screen on the screen board 221 was up, upper cover plate 5 rose to the top of mesa 2, commentaries on classics round pin 6 runs through plank 222, avoid causing the damage to the screen on the screen board 221, and the effect that sets up lets when upper cover plate 5 displacement to the peak, screen board 221 just in time overturns to outside and mesa 2 level, mr can carry out the operation to the projected picture at the screen on screen board 221, upper cover plate 5 rose out when needing the projection, screen board 221 rotated out when the probe came out and just can carry out the projection at this moment, upper cover plate 5 descends when not needing, 222 is rotatory last, make mesa 2 level and smooth planks.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the scope of the present invention.
Claims (1)
1. A teaching platform with a hidden projector is characterized by comprising platform legs (1) and a platform surface (2), wherein the platform legs (1) are fixed on the bottom surfaces of two sides of the platform surface (2), a shell (3) is further installed at the bottom of the platform surface (2) through bolts, and a projection hole (21) and a screen hole (22) which are communicated with an inner cavity of the shell (3) are respectively formed in the top of the platform surface (2);
a servo motor (31), a sleeve ring (32) and a support frame (33) are respectively fixed on the bottom wall of the shell (3), a motor shaft (311) is fixedly arranged on the output end of the servo motor (31), a first gear (3111) and a belt (3112) are sleeved on the outer peripheral surface of the motor shaft (311), a slotted hole (321) is formed in the sleeve ring (32) along the axis direction, a sleeve rod (322) is movably connected in the sleeve ring (32), a rack (3221) is welded on the outer wall of the sleeve rod (322) contacted with the slotted hole (321), a projector (3222) is connected at the top of the sleeve rod (322), the rack (3221) is meshed with the first gear (3111), a rotating shaft (4) is movably connected on the top end of the support frame (33) extending into the screen hole (22) through a bearing, a belt groove (41) is formed in the outer peripheral surface of the rotating shaft (4), a second gear (42) is sleeved on the rotating shaft (4, the other end of the belt (3112) is sleeved on the belt groove (41);
an upper cover plate (5) which slides up and down in a projection hole (21) is mounted at the top end of the loop bar (322), a projection plate (51) covers a groove formed in the edge diameter of the upper cover plate (5) through a hinge, a projection probe (511) connected with a projector (3222) is fixed on the lower surface of the projection plate (51), an elliptical plate (52) which slides relative to the projection plate (51) is movably connected to two sides of the groove of the upper cover plate (5), a screen plate (221) and a wood plate (222) are mounted on a rotating pin (6) penetrating through the screen hole (22), a third gear (61) is sleeved on the peripheral surface of the rotating pin (6), and the third gear (61) is meshed with a second gear (42);
the screen plate (221) and the wood plate (222) have the same area and are adhered to each other,
the screen plate (221) faces outwards, and the rotating pin (6) penetrates through the wood plate (222);
when the screen on the screen plate (221) faces upwards, the upper cover plate (5) rises to the upper part of the table top (2)
A method for preparing;
the elliptical plate (52) rotates to drive the projection plate (51) to rotate in an arc shape by taking the hinge as a center;
hole sites for accommodating the second gear (42) and the third gear (61) are arranged on the table top (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915310.4A CN109043822B (en) | 2018-08-13 | 2018-08-13 | Teaching platform with hidden projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915310.4A CN109043822B (en) | 2018-08-13 | 2018-08-13 | Teaching platform with hidden projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109043822A CN109043822A (en) | 2018-12-21 |
| CN109043822B true CN109043822B (en) | 2021-02-09 |
Family
ID=64678175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810915310.4A Expired - Fee Related CN109043822B (en) | 2018-08-13 | 2018-08-13 | Teaching platform with hidden projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109043822B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110250752A (en) * | 2019-07-11 | 2019-09-20 | 潍坊正直智能家居有限公司 | Convertible multifunctional platform |
| CN110599813A (en) * | 2019-09-23 | 2019-12-20 | 国家电网有限公司技术学院分公司 | Multimedia equipment for classroom |
| CN112365753A (en) * | 2020-11-09 | 2021-02-12 | 佳木斯大学 | A all-in-one with adjustable be used for mathematics teaching |
| CN113996368A (en) * | 2021-09-13 | 2022-02-01 | 扎兰屯职业学院 | Combined operating equipment for biochemical experiment teaching |
| CN114431607B (en) * | 2022-01-25 | 2023-04-14 | 南京欣三人行网络科技有限公司 | A teaching podium with a hidden projector |
| CN117558169B (en) * | 2023-11-22 | 2025-10-28 | 中国人民解放军联勤保障部队第九〇〇医院 | Three-dimensional image projection equipment for VR operation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000089856A (en) * | 1998-09-16 | 2000-03-31 | Sanyo Electric Co Ltd | Computer console |
| CN2469785Y (en) * | 2001-02-12 | 2002-01-09 | 王文骞 | The table structure of the hidden lift projector |
| CN206284585U (en) * | 2016-08-01 | 2017-06-30 | 崔巍伟 | Intelligent radio dais |
| CN206248993U (en) * | 2016-11-22 | 2017-06-13 | 赣州馨语健康产业有限公司 | A kind of health products sales meeting hidden type projector |
| CN108013596B (en) * | 2017-12-07 | 2020-02-18 | 齐齐哈尔大学 | A multimedia teaching platform |
-
2018
- 2018-08-13 CN CN201810915310.4A patent/CN109043822B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109043822A (en) | 2018-12-21 |
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Granted publication date: 20210209 |