CN109686147A - A kind of university students' innovative undertaking educational propaganda device - Google Patents
A kind of university students' innovative undertaking educational propaganda device Download PDFInfo
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- CN109686147A CN109686147A CN201910123869.8A CN201910123869A CN109686147A CN 109686147 A CN109686147 A CN 109686147A CN 201910123869 A CN201910123869 A CN 201910123869A CN 109686147 A CN109686147 A CN 109686147A
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- fixed
- fixedly connected
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- work sphere
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/067—Combinations of audio and projected visual presentation, e.g. film, slides
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
Abstract
The invention discloses a kind of university students' innovative undertaking educational propaganda devices, more particularly to propagandizing device field, including body and work sphere, opening is equipped at the top of the body, the work sphere is through opening and extends at the top of body, the internal body is equipped with cavity, the cavity inside two sides are fixed with elevating mechanism, work sphere bottom is fixed with rotating mechanism, the rotating mechanism is fixedly connected with elevating mechanism, the work ball interior is equipped with surge bunker, control storehouse is equipped at the top of the surge bunker, angle adjusting mechanism is equipped with inside the surge bunker, the angle adjusting mechanism side is equipped with video camera and the other side is equipped with projector.The present invention is projected using angle adjusting mechanism adjustment and the angle of camera shooting, when playing foundation Knowledge Material, the viewing picture of camera shooting student, analyze and determine out the conscientious degree of the viewing of student and viewing number, it is sent to terminal, the auxiliary foundation work in simultaneously reasonable arrangement later period is checked for school grade leader.
Description
Technical field
The present invention relates to propagandizing device technical fields, it is more particularly related to which a kind of university students' innovative undertaking education is declared
Pass device.
Background technique
With social employment pressure increasing and school and society award university student venture activity support and
Venture activity is engaged in the improvement of Entrepreneurial Environment, more and more university student's selections during school, and such benefit is one side energy
Enough accumulation are more started an undertaking or career experience, and the confidence of oneself on the other hand also can be constantly improved by venture activity
The heart, in order to can faster and better adapt to society after graduating from university.
Therefore leaders all pay much attention to foundation propaganda work in present university, but existing foundation publicity is general
Be in the form of blackboard newspaper carry out, propaganda strength is smaller, very to people all be difficult to it is noted that cause start an undertaking publicize effect it is micro- its
It is micro-.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provides a kind of university students' innovative undertaking educational propaganda dress
It setting, carrying out foundation Knowledge Promotion by can control each place that entire propagandizing device is moved in campus using remote controler,
It is worked using elevating mechanism and rotating mechanism, is able to drive work sphere and moves up and down and rotate, be convenient for work and storage, utilized
Angle adjusting mechanism drives video camera and projector to rotate down, and so as to adjust the angle for projecting and imaging, knows playing to start an undertaking
When knowing material, camera meeting Student oriented shoots the viewing picture of student, and utilizes image recognition technology through image processing module
Identification picture is carried out, judges the conscientious degree of the viewing of student, and judges the number of viewing is how many and conscientious degree, warp
Wireless transport module is sent to terminal, checks interest level and university student pair of the university student for foundation for school grade leader
In the conscientious degree of foundation knowledge, so as to the auxiliary foundation work in reasonable arrangement later period.
To achieve the above object, the invention provides the following technical scheme: a kind of university students' innovative undertaking educational propaganda device, including
Body and work sphere, the body top are equipped with opening, and the work sphere is through opening and extends to body top, described
Internal body is equipped with cavity, and the cavity inside two sides are fixed with elevating mechanism, and work sphere bottom is fixed with rotation
Rotation mechanism, the rotating mechanism are fixedly connected with elevating mechanism, and the work ball interior is equipped with surge bunker, the adjusting silo roof
Portion is equipped with control storehouse, is equipped with angle adjusting mechanism inside the surge bunker, the angle adjusting mechanism side be equipped with video camera with
And the other side is equipped with projector, the video camera and the corresponding work sphere of projector are equipped with preformed groove, the work sphere
Front and rear sides are embedded with sound equipment；
PLC controller, storage chip, image processing module, wireless transport module and infrared are equipped with inside the control storehouse
Signal receiver, the wireless transport module connect terminal.
In a preferred embodiment, display, the display outside are fixed on the body front side wall
Solar energy curved slab is fixed on corresponding body outer wall, the cavity bottom of the internal body is fixed with bottom plate, described
Bottom base plate is fixed with four-wheel drive system, is equipped with solar controller and battery on rear side of the four-wheel drive system.
In a preferred embodiment, the engine body exterior is additionally provided with remote controler, and the infrared signal receiver is defeated
Enter end and be equipped with Infrared Projector, the Infrared Projector is set in remote controler.
In a preferred embodiment, the work sphere is set as ball shape, and the opening is provided in round, institute
It states opening inner side and is fixed with elastic rubber ring, the work sphere is matched with elastic rubber ring.
In a preferred embodiment, the elevating mechanism includes two screw rods for being located at cavity inside two sides, institute
State that screw mandrel top is fixed with bearing and bottom end is fixed with positive and negative motor, the positive and negative motor is fixedly connected with bottom plate, often
It is all provided on a screw rod there are two sliding block, two sliding block inner walls are equipped with the internal screw thread matched with screw rod.
In a preferred embodiment, the rotating mechanism includes shaft, and the shaft bottom is arranged with ball axis
Hold, the shaft bottom end is sequentially connected with servo motor, the servo motor and ball bearing two sides pass through bracket respectively with
Two sliding blocks on screw rod are fixedly connected.
In a preferred embodiment, partition, the partition and work are equipped between control storehouse and the surge bunker
Sphere is fixedly connected, and the angle adjusting mechanism includes electric cylinder, and the electric cylinder bottom end is fixedly connected with briquetting, the briquetting
Bottom is fixed with fixed bottom plate, and the fixed bottom plate both ends are fixedly connected with video camera and projector respectively, the fixed bottom
Plate two sides of the bottom are fixed with guide post, are fixed with limit sleeve on the corresponding partition in the guiding column bottom.
In a preferred embodiment, fixed cutting ferrule, the fixing card are equipped with outside the video camera and projector
Set is fixedly connected with work sphere, and the fixed cutting ferrule inner wall is fixed with telescopic, and the telescopic includes multiple springs, institute
State spring one end be fixedly connected with video camera and projector and the other end with work sphere be fixedly connected.
In a preferred embodiment, the telescopic is fixed with extension rubber rubber mat close to one end of preformed groove,
It is fixedly connected on the inside of the extension rubber rubber mat with video camera and projector outer wall and outside is fixedly connected with work sphere.
Technical effect and advantage of the invention:
1, the present invention can control each place that entire propagandizing device is moved in campus using remote controler and start an undertaking
Knowledge Promotion, and when publicizing, can in such a way that display plays video and sound equipment play voice in the form of be publicized, in addition
The intensive place of some students at night can carry out foundation Knowledge Promotion in such a way that projector plays video, entirely
Propagandizing device can also usually assist tutor to project publicity to student in classroom, be worked using elevating mechanism and rotating mechanism,
Screw rod is able to drive rotating mechanism and work sphere moves up and down, and work sphere, which stretches out engine body exterior, is convenient for propaganda work, shrinks
To internal body for storing, servo motor can drive work sphere rotation work, switch the direction of video camera and projector, with
And adjustment sound equipment voice broadcast direction；
2, when needing to work using projector, electric cylinder drives briquetting and fixed bottom plate to move down, and takes the photograph to drive
Camera and projector rotate down, so as to adjust the angle for projecting and imaging, when playing foundation Knowledge Material, camera meeting
Student oriented shoots the viewing picture of student, and carries out identification picture using image recognition technology through image processing module, judgement
The conscientious degree of the viewing of student out, and judge the number of viewing is how many and conscientious degree, sends through wireless transport module
To terminal, check university student for the interest level of foundation and university student for the conscientious of foundation knowledge for school grade leader
Degree, so as to the auxiliary foundation work in reasonable arrangement later period；
3, it drives fixed bottom plate to move down by electric cylinder, the angle of video camera and projector can be adjusted simultaneously, and
And video camera and projector, in rotation, extension rubber rubber mat can follow video camera and projector to rotate and stretch, and avoid outside
Dust or rainwater enter work ball interior, telescopic can play the role of support and buffering.
Detailed description of the invention
Fig. 1 is overall appearance structural representation of the invention.
Fig. 2 is the entirety sectional view under work sphere elongation state of the invention.
Fig. 3 is the entirety sectional view under work sphere contraction state of the invention.
Fig. 4 is work sphere cross-sectional view of the invention.
Fig. 5 is work sphere side view of the invention.
Fig. 6 is overall work schematic diagram of the invention.
Appended drawing reference are as follows: 1 body, 2 work spheres, 3 elevating mechanisms, 31 screw rods, 32 positive and negative motors, 33 sliding blocks, 4 whirlers
Structure, 41 shafts, 42 ball bearings, 43 servo motors, 5 openings, 6 cavitys, 7 surge bunkers, 8 control storehouses, 9 angle adjusting mechanisms, 91
Electric cylinder, 92 briquettings, 93 fixed bottom plates, 94 guide posts, 95 limit sleeves, 10 video cameras, 11 projectors, 12 preformed grooves, 13 sound equipments,
14 displays, 15 solar energy curved slabs, 16 four-wheel drive systems, 17 remote controlers, 18 elastic rubber rings, 19 partitions, 20 fixing cards
Set, 21 telescopics, 22 extension rubber rubber mats.
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.
Embodiment 1:
A kind of university students' innovative undertaking educational propaganda device according to shown in Fig. 1-3, including body 1 and work sphere 2, the machine
Opening 5 is equipped at the top of body 1, the work sphere 2 is through opening 5 and extends to 1 top of body, is equipped with sky inside the body 1
Chamber 6, the 6 inside two sides of cavity are fixed with elevating mechanism 3, and 2 bottom of work sphere is fixed with rotating mechanism 4, institute
It states rotating mechanism 4 to be fixedly connected with elevating mechanism 3, surge bunker 7 is equipped with inside the work sphere 2, is set at the top of the surge bunker 7
There is control storehouse 8, angle adjusting mechanism 9 is equipped with inside the surge bunker 7,9 side of angle adjusting mechanism is equipped with video camera 10
And the other side is equipped with projector 11, the video camera 10 and the corresponding work sphere 2 of projector 11 are equipped with preformed groove 12, institute
It states 2 front and rear sides of work sphere and is embedded with sound equipment 13；
A kind of university students' innovative undertaking educational propaganda device according to figure 6, be equipped with inside the control storehouse 8 PLC controller,
Storage chip, image processing module, wireless transport module and infrared signal receiver, the wireless transport module connect terminal,
Remote controler 17 is additionally provided with outside the body 1, the infrared signal receiver input terminal is equipped with Infrared Projector, described red
External signal transmitter is set in remote controler 17, and entire propagandizing device work can be controlled by remote controler 17.
Known by can control each place that entire propagandizing device is moved in campus using remote controler 17 and start an undertaking
Know publicity, worked using elevating mechanism 3 and rotating mechanism 4, be able to drive work sphere 2 and move up and down and rotate, is convenient for work
And storage, drive video camera 10 and projector 11 to rotate down using angle adjusting mechanism 9, so as to adjust the angle for projecting and imaging
Degree, when playing foundation Knowledge Material, camera meeting Student oriented shoots the viewing picture of student, and through image processing module
Identification picture is carried out using image recognition technology, judges the conscientious degree of the viewing of student, and judges that the number of viewing is more
Less and conscientiously degree, is sent to terminal through wireless transport module, checks that university student is emerging for the sense of foundation for school grade leader
Interesting degree and university student for foundation knowledge conscientious degree, so as to the auxiliary foundation work in reasonable arrangement later period.
Embodiment 2:
A kind of university students' innovative undertaking educational propaganda device according to Fig.2, is fixed with display on 1 front side wall of body
Device 14, is fixed with solar energy curved slab 15 on corresponding 1 outer wall of body in 14 outside of the display, inside the body 1
6 bottom of cavity is fixed with bottom plate, and the bottom base plate is fixed with four-wheel drive system 16, after the four-wheel drive system 16
Side is equipped with solar controller and battery, using solar power generation, supplies whole device and uses, environmentally protective；
A kind of university students' innovative undertaking educational propaganda device according to Fig.3, the work sphere 2 are set as ball shape, institute
It states opening 5 to be provided in round, 5 inside of opening is fixed with elastic rubber ring 18, the work sphere 2 and elastic rubber ring
18 match, and avoid when the sphere 2 that works is contracted to 1 inside of body, external sundries enters inside body 1；
A kind of university students' innovative undertaking educational propaganda device shown in -3 according to fig. 2, the elevating mechanism 3 include two and are located at sky
The screw rod 31 of 6 inside two sides of chamber, 31 top of screw rod is fixed with bearing and bottom end is fixed with positive and negative motor 32, described
Positive and negative motor 32 is fixedly connected with bottom plate, is all provided on each screw rod 31 there are two sliding block 33, two 33 inner walls of sliding block
Equipped with the internal screw thread matched with screw rod 31, it is able to drive whole rotating mechanism 4 and work sphere 2 moves up and down, it is mobile to stablize；
The rotating mechanism 4 includes shaft 41, and 41 bottom of shaft is arranged with ball bearing 42,41 bottom end of shaft
It is sequentially connected with servo motor 43, the servo motor 43 and 42 two sides of ball bearing pass through bracket respectively and on screw rod 31
Two sliding blocks 33 are fixedly connected, and avoiding, which influences rotating mechanism 4, drives work sphere 2 to carry out rotary work；
A kind of university students' innovative undertaking educational propaganda device according to Fig.4, is equipped between the control storehouse 8 and surge bunker 7
Partition 19, the partition 19 are fixedly connected with work sphere 2, and the angle adjusting mechanism 9 includes electric cylinder 91, the electric cylinder
91 bottom ends are fixedly connected with briquetting 92, and 92 bottom of briquetting is fixed with fixed bottom plate 93, fixed 93 both ends of bottom plate point
It is not fixedly connected with video camera 10 and projector 11, fixed 93 two sides of the bottom of bottom plate are fixed with guide post 94, described to lead
Be fixed with limit sleeve 95 on the corresponding partition 19 in 94 bottom of column, make fixed bottom plate 93 move up and down stablize it is smooth, to make
Video camera 10 and 11 angular adjustment of projector are stablized；
A kind of university students' innovative undertaking educational propaganda device according to shown in Fig. 4-5, outside the video camera 10 and projector 11
Equipped with fixed cutting ferrule 20, the fixed cutting ferrule 20 is fixedly connected with work sphere 2, and fixed 20 inner wall of cutting ferrule, which is fixed with, to be stretched
Contracting set 21, the telescopic 21 include multiple springs, the spring one end be fixedly connected with video camera 10 and projector 11 and
The other end is fixedly connected with work sphere 2, when video camera 10 and projector 11 rotate, can play the work of support and buffering
With；
The telescopic 21 is fixed with extension rubber rubber mat 22 close to one end of preformed groove 12, in the extension rubber rubber mat 22
Side is fixedly connected with video camera 10 and 11 outer wall of projector and outside is fixedly connected with work sphere 2,22 energy of extension rubber rubber mat
It enough follows video camera 10 and projector 11 to rotate and stretch, external dust or rainwater is avoided to enter inside work sphere 2.
Working principle of the present invention:
Referring to Figure of description 1, it is moved in use, staff can control entire propagandizing device by remote controler 17
Each place in campus carries out foundation Knowledge Promotion, and when publicizing, can be in such a way that display 14 plays video and sound equipment
The forms of 13 broadcasting voices are publicized, in addition the intensive place of some students at night, can be projected and be played with projector 11
The mode of video carries out foundation Knowledge Promotion, and entire propagandizing device can also usually assist tutor to project a surname to student in classroom
It passing, required foundation knowledge can be sent to device through wireless transport module by terminal, and it is stored in storage chip and uses, and
And entire propagandizing device work can also be controlled by terminal wireless, it is very easy to use；
It referring to Figure of description 2-3, is worked using elevating mechanism 3 and rotating mechanism 4, screw rod 31 is able to drive rotating mechanism
4 move up and down with work sphere 2, and work sphere 2, which stretches out, is convenient for propaganda work outside body 1, are contracted to and are used to receive inside body 1
It receives, servo motor 43 can drive 2 rotation work of work sphere, switch the direction of video camera 10 and projector 11, and adjustment sound
Ring 13 voice broadcast directions；
Referring to Figure of description 4-6, when needing to work using projector 11, electric cylinder 91 drives briquetting 92 and fixed bottom
Plate 93 moves down, so that video camera 10 and projector 11 be driven to rotate down, so as to adjust the angle for projecting and imaging,
When playing foundation Knowledge Material, camera meeting Student oriented shoots the viewing picture of student, and utilizes figure through image processing module
As identification technology carries out identification picture, judge the conscientious degree of the viewing of student, and judge the number of viewing it is how many and
Conscientious degree is sent to terminal through wireless transport module, checks university student for the interest level of foundation for school grade leader
And university student is for the conscientious degree of foundation knowledge, so as to the auxiliary foundation work in reasonable arrangement later period.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the present invention discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure, other knots
Structure, which can refer to, to be commonly designed, and under not conflict situations, the same embodiment of the present invention and different embodiments be can be combined with each other；
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of university students' innovative undertaking educational propaganda device, including body (1) and work sphere (2), it is characterised in that: the body
(1) top is equipped with opening (5), and the work sphere (2) is through opening (5) and extends at the top of body (1), the body (1)
Inside is equipped with cavity (6), and the internal two sides of the cavity (6) are fixed with elevating mechanism (3), and work sphere (2) bottom is solid
Surely rotating mechanism (4) are equipped with, the rotating mechanism (4) is fixedly connected with elevating mechanism (3), sets inside the work sphere (2)
Have surge bunker (7), control storehouse (8) is equipped at the top of the surge bunker (7), is equipped with angle adjusting mechanism inside the surge bunker (7)
(9), angle adjusting mechanism (9) side is equipped with video camera (10) and the other side is equipped with projector (11), the video camera
(10) and the corresponding work sphere (2) of projector (11) is equipped with preformed groove (12), and work sphere (2) front and rear sides are embedded
There are sound equipment (13)；
PLC controller, storage chip, image processing module, wireless transport module and infrared letter are equipped with inside the control storehouse (8)
Number receiver, the wireless transport module connect terminal.
2. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: before the body (1)
It is fixed on side wall display (14), is fixed with solar energy on corresponding body (1) outer wall on the outside of the display (14)
Curved slab (15), internal cavity (6) bottom of the body (1) are fixed with bottom plate, and the bottom base plate is fixed with four-wheel
Drive system (16), four-wheel drive system (16) rear side are equipped with solar controller and battery.
3. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the body (1) is outside
Portion is additionally provided with remote controler (17), and the infrared signal receiver input terminal is equipped with Infrared Projector, the infrared signal hair
Emitter is set in remote controler (17).
4. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the work sphere
(2) it is set as ball shape, the opening (5) is provided in round, elastic rubber ring (18) are fixed on the inside of the opening (5),
The work sphere (2) matches with elastic rubber ring (18).
5. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the elevating mechanism
It (3) include two screw rods (31) for being located at cavity (6) internal two sides, screw rod (31) top is fixed with bearing and bottom end
It is fixed with positive and negative motor (32), the positive and negative motor (32) is fixedly connected with bottom plate, is equipped on each screw rod (31)
Two sliding blocks (33), two sliding block (33) inner walls are equipped with the internal screw thread matched with screw rod (31).
6. a kind of university students' innovative undertaking educational propaganda device according to claim 5, it is characterised in that: the rotating mechanism
It (4) include shaft (41), shaft (41) bottom is arranged with ball bearing (42), and shaft (41) bottom end is sequentially connected with
Servo motor (43), the servo motor (43) and ball bearing (42) two sides pass through bracket respectively with two on screw rod (31)
A sliding block (33) is fixedly connected.
7. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the control storehouse (8)
Partition (19) are equipped between surge bunker (7), the partition (19) is fixedly connected with work sphere (2), the angular adjustment machine
Structure (9) includes electric cylinder (91), and electric cylinder (91) bottom end is fixedly connected with briquetting (92), and briquetting (92) bottom is fixed
Equipped with fixed bottom plate (93), fixed bottom plate (93) both ends are fixedly connected with video camera (10) and projector (11) respectively, institute
Fixed bottom plate (93) two sides of the bottom are stated to be fixed with guide post (94), it is solid on the corresponding partition (19) in guide post (94) bottom
Surely limit sleeve (95) are equipped with.
8. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the video camera (10)
Cutting ferrule (20) are fixed with being equipped with outside projector (11), the fixed cutting ferrule (20) is fixedly connected with work sphere (2), described solid
Determine cutting ferrule (20) inner wall to be fixed with telescopic (21), the telescopic (21) includes multiple springs, the spring one end with take the photograph
Camera (10) and projector (11) are fixedly connected and the other end is fixedly connected with work sphere (2).
9. a kind of university students' innovative undertaking educational propaganda device according to claim 1, it is characterised in that: the telescopic (21)
One end close to preformed groove (12) is fixed with extension rubber rubber mat (22), extension rubber rubber mat (22) inside and video camera (10)
It is fixedly connected with projector (11) outer wall and outside is fixedly connected with work sphere (2).
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| CN201910123869.8A CN109686147A (en) | 2019-02-19 | 2019-02-19 | A kind of university students' innovative undertaking educational propaganda device |
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| CN201910123869.8A CN109686147A (en) | 2019-02-19 | 2019-02-19 | A kind of university students' innovative undertaking educational propaganda device |
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| CN110544398A (en) * | 2019-09-10 | 2019-12-06 | 郑州升达经贸管理学院 | Career planning employment guidance and entrepreneurship basic lecture assisting device |
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| CN111904151A (en) * | 2020-08-14 | 2020-11-10 | 苏州骊赫信息科技有限公司 | Service desk for information technology consultation |
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Application publication date: 20190426 |