CN109159582A - A kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR - Google Patents

A kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR Download PDF

Info

Publication number
CN109159582A
CN109159582A CN201811022779.1A CN201811022779A CN109159582A CN 109159582 A CN109159582 A CN 109159582A CN 201811022779 A CN201811022779 A CN 201811022779A CN 109159582 A CN109159582 A CN 109159582A
Authority
CN
China
Prior art keywords
storage box
plate
fixed frame
horizontal
classroom
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
Application number
CN201811022779.1A
Other languages
Chinese (zh)
Other versions
CN109159582B (en
Inventor
杨健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenzhou University
Original Assignee
Wenzhou University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wenzhou University filed Critical Wenzhou University
Priority to CN201811022779.1A priority Critical patent/CN109159582B/en
Publication of CN109159582A publication Critical patent/CN109159582A/en
Application granted granted Critical
Publication of CN109159582B publication Critical patent/CN109159582B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04Blackboards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00Blackboard or slate cleaning devices
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/02Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip

Landscapes

  • 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)
  • Drawing Aids And Blackboards (AREA)

Abstract

The present invention relates to instructional technology fields, especially a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR, including top plate and bottom plate, it is parallel to each other between top plate and bottom plate and is connected by support plate between both ends, it is horizontal between two pieces of support plates at the top of bottom plate to be fixedly installed with the storage box not bound, the upper horizontal of storage box is equipped with fixed frame, VR display screen is fixedly installed on the inside of fixed frame, it is connected by regulating device between the two sides of fixed frame and adjacent support plate, and the side of fixed frame is separately installed with energization interface and USB interface, energization interface and USB interface pass through conducting wire and connect with VR display screen, in storage box inner horizontal and it is slidably fitted with board of education.The configuration of the present invention is simple, it is easy to operate, securely and reliably, convenient for switching teaching pattern, while conveniently dust is cleared up.

Description

A kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR
Technical field
The present invention relates to instructional technology fields more particularly to a kind of based on the black of the dedicated changeable teaching pattern in the classroom VR Plate.
Background technique
Virtual reality, abbreviation VR technology, also referred to as virtual reality or artificial environment are to generate one three degree using computer simulation The virtual world in space provides simulation of the user about sense organs such as vision, the sense of hearing, tactiles, allows user as being personally on the scene Generally, the things in three-dimensional space can be observed in time, without limitation.When user carries out position movement, computer can be stood Complicated operation is carried out, passes the accurate world 3D image back generation telepresenc.Virtual reality, it is seen that scene and personage it is complete It is false, is that the consciousness of people is substituted into a virtual world.In comparison, graph image is generated simultaneously using computer model It is not too difficult thing.If there is sufficiently exact model, and there is time enough, we can generate different illumination conditions Under various objects exact image, but key here is real-time.Such as in flight simulation system, the refreshing of image is suitable It is important, while the requirement to picture quality is also very high, along with extremely complex virtual environment, problem just becomes extremely difficult. VR technology high-speed hair at present, by VR technology and applies to teaching field, the classroom VR of new generation is come into being.But it is existing The classroom VR special blackboard will often switch different teaching methods in teaching, imparted knowledge to students using Dual-side blackboard in the past, Switching mode is more troublesome, causes teaching inconvenient problem with use.
Summary of the invention
The purpose of the present invention is to solve existing in the prior art to be not easy to switch, and dust does not allow lacking for easy to clean Point, and a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR proposed.
To achieve the goals above, present invention employs following technical solutions:
Design a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR, including top plate and bottom plate, the top plate It is parallel to each other between bottom plate and is connected by support plate between both ends, it is horizontal between two pieces of support plates at the top of the bottom plate It is fixedly installed with the storage box not bound, the upper horizontal of the storage box is equipped with fixed frame, and the fixed frame inside is solid Dingan County is equipped with VR display screen, is connected by regulating device between the two sides of the fixed frame and adjacent support plate, and institute The side for stating fixed frame is separately installed with energization interface and USB interface, the energization interface and USB interface pass through conducting wire with The connection of VR display screen, in the storage box inner horizontal and is slidably fitted with board of education, the top both ends of the board of education are solid Surely it is connected with dovetail slide block, offers dovetail groove on the fixed frame of the dovetail slide block corresponding position vertically, the dovetail is sliding Block is slidably mounted on inside adjacent dovetail groove, and locking device, and the storage box are equipped between the board of education and storage box Inner bottom is equipped with clearing apparatus, and the clearing apparatus includes the motor for being horizontally arranged at storage box inner bottom, the motor Output shaft on horizontal connection have screw rod, the screw rod is rotatably connected on the inner wall of storage box far from one end of motor, and institute The inner horizontal for stating storage box above screw rod is equipped with slide bar, and the slide bar and screw rod are slidably fitted with drive block jointly, described It is connected through a screw thread between drive block and screw rod, is equipped with U-shaped push rod, the both ends of the U-shaped push rod above the drive block vertically Run through drive block and end common horizontal is connected with cleaning brush, the cleaning brush is contacted with the inner bottom of storage box, described U-shaped push rod both ends at the top of drive block are arranged with the first spring, and storage box bottom both ends are respectively connected with ash releasing tube, and two The ash releasing tube runs through bottom plate and extends to outside, is fixedly installed with electric power storage inside the support plate close to the motor side Pond is connected by conducting wire between the energization interface and motor and battery, and the conducting wire between the motor and battery On be connected with travel switch, the travel switch is fixedly mounted on the outside of support plate.
Preferably, the regulating device includes the horizontal mounting groove opened up on the supporting plate, on the inside of the mounting groove The lower equal horizontal connection in both ends has limit skateboard, slides jointly on two pieces of limit skateboards and is fitted with fixed plate, the fixed plate It is fixedly connected with fixed frame, is equipped in the outside level of the support plate of the mounting groove corresponding position and adjusts bolt, the tune It saves bolt-through support plate and is connected through a screw thread between end and fixed plate, the tune between the fixed plate and mounting groove inner wall Second spring is arranged on section bolt.
Preferably, the locking device includes two and is provided with sliding slots on the outside of storage box vertically, in two sliding slots Common horizontal sliding in portion's is fitted with handle, and adjacent sliding slot is run through at the both ends of the handle and end is commonly connected to board of education Bottom end is hinged with the positive stop hook to match with handle on the outside of the top storage box between two sliding slots.
Preferably, horizontal connection has supporting pad, two supporting pads point on the side wall of two sides inside the storage box Not Wei Yu board of education bottom both ends.
Preferably, rubber pad is installed at the top of the supporting pad.
A kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR proposed by the present invention, beneficial effect are: logical Fixed frame can be fixedly mounted between two pieces of support plates by toning regulating device, convenient for being fixed to VR display screen, By dovetail groove and dovetail slide block, so that board of education is slidably mounted on fixed frame, convenient for the switching of teaching pattern, cutting It during changing, is locked by locking device, by clearing apparatus, the chalk dust inside storage box can be carried out Cleaning.The configuration of the present invention is simple, it is easy to operate, securely and reliably, convenient for switching teaching pattern, while conveniently dust is carried out clear Reason.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the blackboard based on the dedicated changeable teaching pattern in the classroom VR proposed by the present invention Figure;
Fig. 2 is that a kind of sectional structure of the blackboard based on the dedicated changeable teaching pattern in the classroom VR proposed by the present invention shows It is intended to;
Fig. 3 is that a kind of the right of blackboard based on the dedicated changeable teaching pattern in the classroom VR proposed by the present invention shows depending on structure It is intended to.
In figure: support plate 1 adjusts bolt 2, top plate 3, VR display screen 4, fixed frame 5, dovetail groove 6, fixed plate 7, dovetail Sliding block 8, board of education 9, storage box 10, ash releasing tube 11, bottom plate 12, handle 13, sliding slot 14, positive stop hook 15, limit skateboard 16, installation Slot 17, battery 18, travel switch 19, motor 20, screw rod 21, drive block 22, cleaning brush 23, slide bar 24, supporting pad 25, first Spring 26, U-shaped push rod 27, energization interface 28, USB interface 29, second spring 30.
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.
Referring to Fig.1-3, a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR, including top plate 3 and bottom plate 12, It is parallel to each other between top plate 3 and bottom plate 12 and is connected by support plate 1 between both ends, two pieces of support plates 1 at 12 top of bottom plate Between it is horizontal be fixedly installed with the storage box 10 not bound, the upper horizontal of storage box 10 is equipped with fixed frame 5, fixed frame 5 Inside is fixedly installed with VR display screen 4, is connected by regulating device between the two sides of fixed frame 5 and adjacent support plate 1, Regulating device includes the horizontal mounting groove 17 being provided in support plate 1, and the equal horizontal connection of inside upper and lower ends of mounting groove 17 has Limit skateboard 16, sliding is fitted with fixed plate 7 jointly on two pieces of limit skateboards 16, and fixed plate 7 is fixedly connected with fixed frame 5, It is equipped in the outside level of the support plate 1 of 17 corresponding position of mounting groove and adjusts bolt 2, adjusted bolt 2 and run through support plate 1 and end It is connected through a screw thread between fixed plate 7, is arranged with the second bullet on the adjusting bolt 2 between 17 inner wall of fixed plate 7 and mounting groove Spring 30, and the side of fixed frame 5 is separately installed with energization interface 28 and USB interface 29, energization interface 28 and USB interface 29 are equal It is connect by conducting wire with VR display screen 4;By two pieces of limit skateboards 16 inside mounting groove 17, so as to VR display screen 4 Limit up and down is carried out, by adjusting bolt 2, so as to drive VR display screen 4 to be moved forward and backward.
In 10 inner horizontal of storage box and it is slidably fitted with board of education 9, the top both ends of board of education 9 are fixedly connected to swallow Tail sliding block 8 offers dovetail groove 6 on the fixed frame 5 of 8 corresponding position of dovetail slide block vertically, and dovetail slide block 8 is slidably mounted on phase Inside adjacent dovetail groove 6, locking device is equipped between board of education 9 and storage box 10, locking device includes two and is provided with vertically The sliding slot 14 in 10 outside of storage box, two 14 inside common horizontal of sliding slot slidings are fitted with handle 13, and the both ends of handle 13 are passed through It wears adjacent sliding slot 14 and end is commonly connected to 9 bottom end of board of education, 10 outside of top storage box between two sliding slots 14 It is hinged with the positive stop hook 15 to match with handle 13, horizontal connection has supporting pad 25 on the side wall of 10 inside two sides of storage box, Two supporting pads 25 are located at the bottom both ends of board of education 9, and the top of supporting pad 25 is equipped with rubber pad, and in storage box 10 Portion bottom end is equipped with clearing apparatus;By pulling handle 13 in 14 internal slide of sliding slot, so as to drive board of education 9 in storage box 10 inside are mobile, and storage box 10 in the process of moving, while driving dovetail slide block 8 in 6 internal slide of dovetail groove, to cause Board of education 9 and VR display screen 4 phenomenon in an overlapping, avoid board of education by positive stop hook 15 so as to buckle to handle 13 9 there is sliding phenomenon, by supporting pad 25, to can carry out to board of education 9 when board of education 9 is located at 10 inside of storage box Support promotes the stability of board of education 9.
Clearing apparatus includes the motor 20 for being horizontally arranged at 10 inner bottom of storage box, and level connects on the output shaft of motor 20 It is connected to screw rod 21, screw rod 21 is rotatably connected on the inner wall of storage box 10 far from one end of motor 20, and is stored above screw rod 21 The inner horizontal of box 10 is equipped with slide bar 24, and slide bar 24 and screw rod 21 are slidably fitted with drive block 22, drive block 22 and spiral shell jointly It is connected through a screw thread between bar 21,22 top of drive block is equipped with U-shaped push rod 27 vertically, and driving is run through at the both ends of U-shaped push rod 27 Block 22 and end common horizontal are connected with cleaning brush 23, and cleaning brush 23 is contacted with the inner bottom of storage box 10, and drive block 22 pushes up 27 both ends of U-shaped push rod in portion are arranged with the first spring 26, and 10 bottom both ends of storage box are respectively connected with ash releasing tube 11, two ash discharges Pipe 11 extends to outside through bottom plate 12, is fixedly installed with battery 18 inside the support plate 1 close to 20 side of motor, leads to It is connected by conducting wire between electrical interface 28 and motor 20 and battery 18, and connected on the conducting wire between motor 20 and battery 18 It is connected to travel switch 19, travel switch 19 is fixedly mounted on the outside of support plate 1;By motor 20, driven so that screw rod 21 drives Motion block 22 moves on slide bar 24, by the first spring 26, to push inner bottom of the cleaning brush 23 always with storage box 10 Contact, drive block 22 in the process of moving, while driving cleaning brush 23 to clean the chalk dust inside storage box 10, lead to Cross the exclusion of ash releasing tube 11.
Fixed frame 5: being fixedly mounted between two pieces of support plates 1 by embodiment by regulating device, convenient for aobvious to VR Display screen 4 fixes, by dovetail groove 6 and dovetail slide block 8, so that board of education 9 is slidably mounted on fixed frame 5, Convenient for the switching of teaching pattern, during switching, locked by locking device, it, can be with by clearing apparatus Chalk dust inside storage box 10 is cleared up.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (5)

1. a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR, including top plate (3) and bottom plate (12), the top plate (3) it is parallel to each other between bottom plate (12) and is connected by support plate (1) between both ends, which is characterized in that the bottom plate (12) horizontal between two pieces of support plates (1) at the top of to be fixedly installed with the storage box (10) not bound, the storage box (10) Upper horizontal is equipped with fixed frame (5), is fixedly installed with VR display screen (4), the fixed frame on the inside of the fixed frame (5) (5) it is connect by regulating device between two sides and adjacent support plate (1), and the side difference of the fixed frame (5) Energization interface (28) and USB interface (29) are installed, the energization interface (28) and USB interface (29) are aobvious by conducting wire and VR Display screen (4) connection, in the storage box (10) inner horizontal and is slidably fitted with board of education (9), the top of the board of education (9) Both ends are fixedly connected to dovetail slide block (8), are offered vertically on the fixed frame (5) of dovetail slide block (8) corresponding position Dovetail groove (6), the dovetail slide block (8) are slidably mounted on adjacent dovetail groove (6) inside, the board of education (9) and storage box (10) locking device is equipped between, and the storage box (10) inner bottom is equipped with clearing apparatus, the clearing apparatus includes water Safety is mounted in the motor (20) of storage box (10) inner bottom, and horizontal connection has screw rod on the output shaft of the motor (20) (21), the screw rod (21) is rotatably connected on the inner wall of storage box (10) far from the one end of motor (20), and the screw rod (21) inner horizontal of top storage box (10) is equipped with slide bar (24), and the slide bar (24) is slidably installed jointly with screw rod (21) Have drive block (22), is connected through a screw thread between the drive block (22) and screw rod (21), it is vertical above the drive block (22) Equipped with U-shaped push rod (27), drive block (22) is run through at the both ends of the U-shaped push rod (27) and end common horizontal is connected with cleaning It brushes (23), the cleaning brush (23) contacts with the inner bottom of storage box (10), the U-shaped push rod at the top of the drive block (22) (27) both ends are arranged with the first spring (26), and storage box (10) the bottom both ends are respectively connected with ash releasing tube (11), two institutes It states ash releasing tube (11) and extends to outside through bottom plate (12), it is solid inside the support plate (1) close to the motor (20) side Dingan County is equipped with battery (18), is connect by conducting wire between the energization interface (28) and motor (20) and battery (18), And be connected with travel switch (19) on the conducting wire between the motor (20) and battery (18), the travel switch (19) is fixed It is mounted on the outside of support plate (1).
2. a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR according to claim 1, which is characterized in that The regulating device includes the mounting groove (17) that level is provided on support plate (1), the inside upper and lower two of the mounting groove (17) Equal horizontal connection is held to have limit skateboard (16), sliding is fitted with fixed plate (7) jointly on two pieces of limit skateboards (16), described Fixed plate (7) is fixedly connected with fixed frame (5), horizontal in the outside of the support plate (1) of the mounting groove (17) corresponding position Equipped with bolt (2) are adjusted, the adjusting bolt (2) is run through between support plate (1) and end and fixed plate (7) and is connected by screw thread It connects, is arranged with second spring (30) on the adjusting bolt (2) between the fixed plate (7) and mounting groove (17) inner wall.
3. a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR according to claim 1, which is characterized in that The locking device includes two sliding slots (14) being provided on the outside of storage box (10) vertically, and two sliding slots (14) are internal altogether Same level sliding is fitted with handle (13), and adjacent sliding slot (14) is run through at the both ends of the handle (13) and end connects jointly In board of education (9) bottom end, it is hinged with and handle (13) phase on the outside of the top storage box (10) between two sliding slots (14) Matched positive stop hook (15).
4. a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR according to claim 1, which is characterized in that There is supporting pad (25) horizontal connection on the side wall of the internal two sides of the storage box (10), two supporting pads (25) difference positions In the bottom both ends of board of education (9).
5. a kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR according to claim 4, which is characterized in that Rubber pad is installed at the top of the supporting pad (25).
CN201811022779.1A 2018-09-03 2018-09-03 Blackboard capable of switching teaching modes based on VR classroom Active CN109159582B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811022779.1A CN109159582B (en) 2018-09-03 2018-09-03 Blackboard capable of switching teaching modes based on VR classroom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811022779.1A CN109159582B (en) 2018-09-03 2018-09-03 Blackboard capable of switching teaching modes based on VR classroom

Publications (2)

Publication Number Publication Date
CN109159582A true CN109159582A (en) 2019-01-08
CN109159582B CN109159582B (en) 2020-11-03

Family

ID=64893951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811022779.1A Active CN109159582B (en) 2018-09-03 2018-09-03 Blackboard capable of switching teaching modes based on VR classroom

Country Status (1)

Country Link
CN (1) CN109159582B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112820152A (en) * 2021-03-13 2021-05-18 顾越 Intelligent education system based on cloud data and use method thereof
CN112837563A (en) * 2021-01-18 2021-05-25 濮阳职业技术学院 Intelligent multimedia teaching system for economic management
CN112991989A (en) * 2021-02-24 2021-06-18 焦作大学 Multifunctional display device for indoor design

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102079203A (en) * 2009-11-30 2011-06-01 上海市复兴高级中学 Blackboard with chalk powder cleaning groove
CN203713362U (en) * 2013-12-13 2014-07-16 重庆市二0三中学校 Chalk dust slot cleaning device capable of automatically cleaning dust
CN203713345U (en) * 2013-12-13 2014-07-16 重庆市二0三中学校 Electric control type chalk dust tank cleaning structure
CN206322336U (en) * 2016-12-06 2017-07-11 孙玉东 Smart electronic blackboard
CN107274729A (en) * 2017-08-09 2017-10-20 安徽状元郎电子科技有限公司 A kind of blackboard of the changeable teaching pattern special based on VR classrooms
CN207630822U (en) * 2017-08-09 2018-07-20 济南道图工贸有限公司 A kind of multimedia blackboard

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102079203A (en) * 2009-11-30 2011-06-01 上海市复兴高级中学 Blackboard with chalk powder cleaning groove
CN203713362U (en) * 2013-12-13 2014-07-16 重庆市二0三中学校 Chalk dust slot cleaning device capable of automatically cleaning dust
CN203713345U (en) * 2013-12-13 2014-07-16 重庆市二0三中学校 Electric control type chalk dust tank cleaning structure
CN206322336U (en) * 2016-12-06 2017-07-11 孙玉东 Smart electronic blackboard
CN107274729A (en) * 2017-08-09 2017-10-20 安徽状元郎电子科技有限公司 A kind of blackboard of the changeable teaching pattern special based on VR classrooms
CN207630822U (en) * 2017-08-09 2018-07-20 济南道图工贸有限公司 A kind of multimedia blackboard

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112837563A (en) * 2021-01-18 2021-05-25 濮阳职业技术学院 Intelligent multimedia teaching system for economic management
CN112991989A (en) * 2021-02-24 2021-06-18 焦作大学 Multifunctional display device for indoor design
CN112820152A (en) * 2021-03-13 2021-05-18 顾越 Intelligent education system based on cloud data and use method thereof

Also Published As

Publication number Publication date
CN109159582B (en) 2020-11-03

Similar Documents

Publication Publication Date Title
CN109159582A (en) A kind of blackboard based on the dedicated changeable teaching pattern in the classroom VR
CN106881981B (en) A kind of blackboard auto-erasing device
CN110211427A (en) Designed teaching resource display platform under a kind of numerical medium art environment
CN107274729A (en) A kind of blackboard of the changeable teaching pattern special based on VR classrooms
CN211010686U (en) Visual three-dimensional holographic projection equipment
CN208889290U (en) A kind of holography 3D display machine
CN216014205U (en) VR immerses virtual mutual integrative device in multidimensional space
CN210428993U (en) Generator model with magnetic force lines and current direction visualized
CN210743239U (en) Early education machine for children
CN208984943U (en) A kind of projection type computer displaying device
CN106405879A (en) Vertical-placement scrubbing equipment for glasses mirrors of VR glasses
CN208848597U (en) A kind of interaction exhibition equipment
CN207737019U (en) A kind of new type blackboard
CN214647205U (en) Follow-on mathematical education panel
CN109727515A (en) A kind of magnetic line of force and the visual generator model of current direction
CN206349055U (en) A kind of Fresnel mirror principle show stand component
CN2457682Y (en) Space-time orbit display and recording instrument for moving object
CN210488218U (en) Video animation generates analogue means fast
CN109545098A (en) A kind of two-screen Interactive cabinet based on multimedia project production and management system
CN208390498U (en) It is automatic to remove blackboard eraser dust device
CN115050235B (en) Fire-fighting fire simulation evaluation display instrument and operation method
CN221079493U (en) Interactive sand table of multi-media photoelectricity projection
CN216362002U (en) Magnetism generates electricity presentation device
CN210109542U (en) Projector with adjusting structure
CN204204345U (en) Can the outdoor digital signage of automatic dust removing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant