CN108828889A - A kind of Management Science and Engineering intelligent tutoring projection device - Google Patents
A kind of Management Science and Engineering intelligent tutoring projection device Download PDFInfo
- Publication number
- CN108828889A CN108828889A CN201810561421.XA CN201810561421A CN108828889A CN 108828889 A CN108828889 A CN 108828889A CN 201810561421 A CN201810561421 A CN 201810561421A CN 108828889 A CN108828889 A CN 108828889A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- fixedly connected
- telescopic rod
- fixed
- electric telescopic
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- 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
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
-
- 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
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- 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
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- 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
Abstract
The invention discloses a kind of Management Science and Engineering intelligent tutoring projection devices,Including bottom plate,Pillar and projector shell,Surrounding is fixed with multiple pillars above the bottom plate,The pillar top is fixed with mounting plate,Spheric seat is equipped among the bottom plate upper left,The spheric seat inner upper is equipped with spherical groove,Universal ball end is equipped with inside the spherical groove,The universal ball end and spherical groove are rotatablely connected,The universal ball end upper end is fixedly connected with projector shell left end,It is intermediate above the bottom plate to be equipped with control cabinet,The bottom plate upper right is equipped with groove,The inside grooves middle slip is equipped with block,The inside grooves front end is fixed with the first electric telescopic rod,The output end of first electric telescopic rod is fixedly connected with block front end,Product of the present invention,Structure is simple,It is vdiverse in function,Perfect heat-dissipating,Effectively projector position can be adjusted,Conducive to popularization and use.
Description
Technical field
The present invention relates to teaching facilities technical field, specially a kind of Management Science and Engineering intelligent tutoring projection is set
It is standby.
Background technique
Projector be it is a kind of the profile of workpiece is amplified using optical element, and the optics instrument being projected on shadow screen
Device.It can make profile measurement with transmitted light, it is also possible to the surface shape and observation piece surface of reflected light measurement blind hole.Projection
The particularly suitable measurement complex outline of instrument and tiny workpiece, as clock and watch part, punching parts, electronic component, template, mold, screw thread,
Gear and molding cutter etc., checkability is high, easy to use;It is widely used in measuring room, workshop, to instrument and meter and clock
Table row industry is especially suitable.The portability of projector compensates for teaching vacancy, and later teacher, which teaches, only needs data to be stored in throwing
Student instruction can be showed in shadow instrument, eliminate textbook and the trouble with pen, chalk handwriting.
However in teaching process, can all there be the incomplete phenomenon of projector in many cases, and projection is set
It is standby to be independently adjusted, many times technical staff is needed to debug, delay instructional blocks of time, influences quality of instruction,
It is unfavorable for imparting knowledge to students；Existing projection device simultaneously causes projector for a long time in use, being easy accumulation without radiator
A large amount of heat leads to equipment internal damage, influences normal use.
Summary of the invention
The purpose of the present invention is to provide a kind of Management Science and Engineering intelligent tutoring projection devices, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of Management Science and Engineering intelligent tutoring projection device, including bottom plate, pillar and projector shell, on the bottom plate
Fang Sizhou is fixed with multiple pillars, and the pillar top is fixed with mounting plate, is equipped with ball among the bottom plate upper left
Shape seat, the spheric seat inner upper are equipped with spherical groove, are equipped with universal ball end, the universal ball end inside the spherical groove
It is rotatablely connected with spherical groove, the universal ball end upper end is fixedly connected with projector shell left end, intermediate above the bottom plate
Equipped with control cabinet, the bottom plate upper right is equipped with groove, and the inside grooves middle slip is equipped with block, the inside grooves
Front end is fixed with the first electric telescopic rod, and the output end of first electric telescopic rod is fixedly connected with block front end, described
Inside grooves rear end is fixed with telescopic device, and the telescopic device front end is fixedly connected with block, passes through above the block
Screw is fixedly connected with fixed plate, is fixed with the second electric telescopic rod, second electric telescopic rod above the fixed plate
Output end and projector shell right end be articulated and connected, the projector housing bottom be equipped with exhaust fan component, the projector
Shell overhead surface is equipped with cooling fin, is equipped with the temperature inductor being electrically connected with control cabinet among the projector enclosure interior.
Preferably, the mounting plate upper surface is surrounded by multiple mounting holes.
Preferably, the exhaust fan component includes multiple exhaust fans.
Preferably, dust-proof protective net is equipped on the outside of the exhaust fan.
Preferably, be equipped with control module and wireless receiving module inside the control cabinet, the control module respectively with nothing
Line receiving module, exhaust fan component, the first electric telescopic rod and the second electric telescopic rod are electrically connected.
Preferably, the cooling fin is made of pure copper material.
Preferably, the projector inner walls are equipped with puigging.
Preferably, the telescopic device includes adjustable spring and retaining ring, and the institute adjustable spring rear end and bottom plate, which are fixed, to be connected
It connects, the adjustable spring front end is fixedly connected with retaining ring, and the retaining ring is fixedly connected with block.
Compared with prior art, the beneficial effects of the invention are as follows：By the universal ball end and spheric seat being equipped with, can be convenient for
The rotation of projector shell is conducive to use convenient for carrying out projector the adjustment of position；Pass through the first electric telescopic rod being equipped with
With the second electric telescopic rod, comprehensive adjustment can be effectively carried out to projector shell, guarantees the complete of projector
Property, it is conducive to teaching；By the exhaust fan component and cooling fin being equipped with, the heat that can effectively generate to projector carries out scattered
Heat avoids heat build-up from leading to equipment damage；Product of the present invention, structure is simple, vdiverse in function, perfect heat-dissipating, can be effective
Projector position is adjusted, be conducive to promote the use of.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Management Science and Engineering intelligent tutoring projection device；
Fig. 2 is a kind of overlooking structure diagram of Management Science and Engineering intelligent tutoring projection device；
Fig. 3 is that a kind of bottom of projector shell in Management Science and Engineering intelligent tutoring projection device regards structural schematic diagram；
Fig. 4 is a kind of circuit block diagram of control cabinet in Management Science and Engineering intelligent tutoring projection device.
In figure：1- bottom plate, 2- pillar, 3- mounting plate, 5- projector shell, 6- temperature inductor, 7- cooling fin, 8- second
Electric telescopic rod, 9- fixed plate, 10- block, 11- groove, 12- wireless receiving module, 14- control module, 15- control cabinet, 16-
Spheric seat, 17- universal ball end, 18- spherical groove, 19- mounting hole, 20- adjustable spring, 21- retaining ring, the dust-proof protective net of 22-,
23- exhaust fan, the first electric telescopic rod of 24-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1~4 are please referred to, the present invention provides a kind of technical solution：A kind of Management Science and Engineering are projected with intelligent tutoring
Equipment, including bottom plate 1, pillar 2 and projector shell 5, the 1 top surrounding of bottom plate are fixed with multiple pillars 2, the pillar
2 tops are fixed with mounting plate 3, are equipped with spheric seat 16 among 1 upper left of bottom plate, 16 inner upper of spheric seat is set
There is spherical groove 18, universal ball end 17 is equipped with inside the spherical groove 18, the universal ball end 17 is rotated with spherical groove 18
Connection, 17 upper end of universal ball end are fixedly connected with 5 left end of projector shell, and 1 top of bottom plate is intermediate to be equipped with control cabinet
15,1 upper right of bottom plate is equipped with groove 11, and 11 bosom of groove, which slides, is equipped with block 10, in the groove 11
Portion front end is fixed with the first electric telescopic rod 24, the fixed company of the output end of first electric telescopic rod 24 and 10 front end of block
It connects, 11 Internal back end of groove is fixed with telescopic device, and the telescopic device front end is fixedly connected with block 10, the gear
Fixed plate 9 is fixedly connected with by screw above block 10, the second electric telescopic rod 8 is fixed with above the fixed plate 9, it is described
The output end and 5 right end of projector shell of second electric telescopic rod 8 are articulated and connected, and 5 bottom of projector shell is equipped with air draft
Component is fanned, 5 overhead surface of projector shell is equipped with cooling fin 7, and 5 bosom of projector shell is equipped with and control cabinet
The temperature inductor 6 of 15 electrical connections.
Wherein, 3 upper surface of mounting plate is surrounded by multiple mounting holes 19, convenient for the installation and fixation of device.It is described
Exhaust fan component includes multiple exhaust fans 23.It is equipped with dust-proof protective net 22 on the outside of the exhaust fan 23, can effectively prevent
Dust enters inside equipment, influences the accuracy of equipment.
Inside the control cabinet 15 be equipped with control module 14 and wireless receiving module 12, the control module 14 respectively with nothing
Line receiving module 12, exhaust fan component, the first electric telescopic rod 24 and the second electric telescopic rod 8 are electrically connected.
The cooling fin 7 is made of pure copper material.5 inner wall of projector shell is equipped with puigging.
The telescopic device includes adjustable spring 20 and retaining ring 21, and 20 rear end of adjustable spring is fixedly connected with bottom plate 1,
20 front end of adjustable spring is fixedly connected with retaining ring 21, and the retaining ring 21 is fixedly connected with block 10.
The working principle of the invention is：By the universal ball end 17 and spheric seat 16 being equipped with, projector shell 5 can be convenient for
Rotation, convenient for projector carry out position adjustment, be conducive to use；Pass through the first electric telescopic rod 24 being equipped with and the second electricity
Dynamic telescopic rod 8, comprehensive adjustment can be effectively carried out to projector shell, guarantees the integrality of projector, is conducive to
Teaching；By the exhaust fan component and cooling fin 7 being equipped with, the heat that can effectively generate to projector radiates, avoids
Heat build-up leads to equipment damage.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of Management Science and Engineering intelligent tutoring projection device, including bottom plate（1）, pillar（2）With projector shell
（5）, it is characterised in that：The bottom plate（1）Top surrounding is fixed with multiple pillars（2）, the pillar（2）Top is fixed with
Mounting plate（3）, the bottom plate（1）Spheric seat is equipped among upper left（16）, the spheric seat（16）Inner upper is equipped with ball
Connected in star（18）, the spherical groove（18）Inside is equipped with universal ball end（17）, the universal ball end（17）With spherical groove
（18）Rotation connection, the universal ball end（17）Upper end and projector shell（5）Left end is fixedly connected, the bottom plate（1）Top
Centre is equipped with control cabinet（15）, the bottom plate（1）Upper right is equipped with groove（11）, the groove（11）Bosom sliding is set
There is block（10）, the groove（11）Interior forward end is fixed with the first electric telescopic rod（24）, first electric telescopic rod
（24）Output end and block（10）Front end is fixedly connected, the groove（11）Internal back end is fixed with telescopic device, described
Telescopic device front end and block（10）It is fixedly connected, the block（10）Top is fixedly connected with fixed plate by screw（9）, institute
State fixed plate（9）Top is fixed with the second electric telescopic rod（8）, second electric telescopic rod（8）Output end and projection
Instrument shell（5）Right end articulated connection, the projector shell（5）Bottom is equipped with exhaust fan component, the projector shell（5）On
Square surface is equipped with cooling fin（7）, the projector shell（5）Bosom is equipped with and control cabinet（15）The temperature sense of electrical connection
Device（6）.
2. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Mounting plate（3）Upper surface is surrounded by multiple mounting holes（19）.
3. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Exhaust fan component includes multiple exhaust fans（23）.
4. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 3, it is characterised in that：It is described
Exhaust fan（23）Outside is equipped with dust-proof protective net（22）.
5. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Control cabinet（15）Inside is equipped with control module（14）And wireless receiving module（12）, the control module（14）Respectively with wirelessly connect
Receive module（12）, exhaust fan component, the first electric telescopic rod（24）With the second electric telescopic rod（8）It is electrically connected.
6. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Cooling fin（7）It is made of pure copper material.
7. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Projector shell（5）Inner wall is equipped with puigging.
8. a kind of Management Science and Engineering intelligent tutoring projection device according to claim 1, it is characterised in that：It is described
Telescopic device includes adjustable spring（20）And retaining ring（21）, institute's adjustable spring（20）Rear end and bottom plate（1）It is fixedly connected, institute
State adjustable spring（20）Front end and retaining ring（21）It is fixedly connected, the retaining ring（21）With block（10）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561421.XA CN108828889B (en) | 2018-06-04 | 2018-06-04 | Intelligent teaching projection equipment for management science and engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561421.XA CN108828889B (en) | 2018-06-04 | 2018-06-04 | Intelligent teaching projection equipment for management science and engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108828889A true CN108828889A (en) | 2018-11-16 |
| CN108828889B CN108828889B (en) | 2020-11-10 |
Family
ID=64143375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810561421.XA Active CN108828889B (en) | 2018-06-04 | 2018-06-04 | Intelligent teaching projection equipment for management science and engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108828889B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694203A (en) * | 2020-07-06 | 2020-09-22 | 江西财经大学 | Intelligent teaching projection equipment for management science and engineering |
| CN112102674A (en) * | 2020-09-22 | 2020-12-18 | 山东交通职业学院 | Remote teaching display device based on internet education |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120257174A1 (en) * | 2011-03-30 | 2012-10-11 | Omid Abri | Carrier system for an operating room |
| CN103423558A (en) * | 2013-07-16 | 2013-12-04 | 燕山大学 | Coupled four-freedom-degree parallel connection vibration isolation platform |
| CN203847963U (en) * | 2014-05-27 | 2014-09-24 | 卢玉 | Multimedia device for economic management major teaching |
| CN204879341U (en) * | 2015-08-07 | 2015-12-16 | 海南赛航光电科技有限公司 | But height -adjusting's projecting apparatus |
| US20160010794A1 (en) * | 2014-07-10 | 2016-01-14 | Syncmold Enterprise Corp. | Adjustable hanging device |
| CN205177183U (en) * | 2015-07-27 | 2016-04-20 | 湖南城市学院 | Multimedia projector appearance is used in teaching |
| CN107270066A (en) * | 2017-08-10 | 2017-10-20 | 安徽英冉信息咨询有限公司 | A kind of apparatus for placing of projecting apparatus |
| CN207038123U (en) * | 2017-08-17 | 2018-02-23 | 上海奥帆多媒体科技有限公司 | A kind of museum's multimedia projector |
-
2018
- 2018-06-04 CN CN201810561421.XA patent/CN108828889B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120257174A1 (en) * | 2011-03-30 | 2012-10-11 | Omid Abri | Carrier system for an operating room |
| CN103423558A (en) * | 2013-07-16 | 2013-12-04 | 燕山大学 | Coupled four-freedom-degree parallel connection vibration isolation platform |
| CN203847963U (en) * | 2014-05-27 | 2014-09-24 | 卢玉 | Multimedia device for economic management major teaching |
| US20160010794A1 (en) * | 2014-07-10 | 2016-01-14 | Syncmold Enterprise Corp. | Adjustable hanging device |
| CN205177183U (en) * | 2015-07-27 | 2016-04-20 | 湖南城市学院 | Multimedia projector appearance is used in teaching |
| CN204879341U (en) * | 2015-08-07 | 2015-12-16 | 海南赛航光电科技有限公司 | But height -adjusting's projecting apparatus |
| CN107270066A (en) * | 2017-08-10 | 2017-10-20 | 安徽英冉信息咨询有限公司 | A kind of apparatus for placing of projecting apparatus |
| CN207038123U (en) * | 2017-08-17 | 2018-02-23 | 上海奥帆多媒体科技有限公司 | A kind of museum's multimedia projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694203A (en) * | 2020-07-06 | 2020-09-22 | 江西财经大学 | Intelligent teaching projection equipment for management science and engineering |
| CN112102674A (en) * | 2020-09-22 | 2020-12-18 | 山东交通职业学院 | Remote teaching display device based on internet education |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108828889B (en) | 2020-11-10 |
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