Movable and fixed blackboard

A blackboard, dynamic and static technology, applied in the field of blackboard, can solve the problem that there is no way to realize lateral movement, etc., and achieve the effect of low cost, simple design principle and broad market prospect

Pending Publication Date: 2018-12-07
AIR FORCE UNIV PLA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the lifting combination blackboard is that there is no way to achieve horizontal movement. The upper and lower blackboards are mutually restricted, and the teacher will cover the other blackboard due to the linkage of the blackboard when the teacher is used to writing at the height.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Movable and fixed blackboard
  • Movable and fixed blackboard
  • Movable and fixed blackboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] specific implementation

[0034] The basic principle of the dynamic and static blackboard is two degrees of freedom, that is, both the horizontal and vertical directions can be moved freely without any constraints, and the block blackboard can be moved to any coordinate position if the overall blackboard area allows. In addition, it can also provide blackboard front and rear directions The expansion and contraction of the blackboard and the change of the inclination angle of the blackboard.

[0035] figure 2 Show the perspective view of the static and dynamic blackboard viewed from the side rear, the dynamic and static blackboard includes a blackboard 1, an upper guide rail 2, a lower guide rail 3, a support frame 4, movable columns 5 and a blackboard connection mechanism 6 corresponding to the number of blackboards. Wherein, the number of blackboards 1 is determined according to needs, generally 2 to 3 blackboards. The upper guide rail 2 and the lower guide rail 3 a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A movable and fixed blackboard comprises blackboard bodies (1), upper guide rails (2), lower guide rails (3), a supporting framework (4), movable stand columns (5) corresponding to the blackboard number and blackboard connecting mechanisms (6); one blackboard body is supported by each set of guide rails, and the blackboard bodies can independently move without mutual disturbing. The movable and fixed blackboard has the beneficial effects that each blackboard body achieves free moving in at least two directions, and the blackboard bodies are more free, and can move to any allowed position; a structure capable of adjusting inner stress is adopted, and a teacher can move the corresponding blackboard body with a proper force according to the body condition of the teacher himself/herself; frontand back moving and steering adjusting can be performed according to the changing of light ray, and the reflecting problem is solved to a certain extent; and the basic design principle is simple, manufacturing is easy and convenient, cost is low, and very broad market prospects are achieved.

Description

technical field [0001] The invention relates to a blackboard, in particular to a multifunctional dynamic and static blackboard. Background technique [0002] At present, most of the classrooms of colleges and universities in the country adopt lift-type combination blackboards, but when using traditional blackboards in daily life, some problems will appear as follows. When the teacher is explaining the knowledge points, the blackboard is often misplaced. The knowledge to be taught is on one side of the blackboard, and the examples that need to be used are sometimes on the other side of the blackboard. When the teacher emphasizes an important knowledge point through example questions, he often needs to go back and forth between the two sides of the podium, which consumes the teacher's physical strength and brings inconvenience to the knowledge teaching. In addition, when the teacher uses the blackboard, due to the fixed position of the writing, even if the material of the bla...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04A47B97/06
CPCA47B97/06B43L1/04
Inventor 何孟良
Owner AIR FORCE UNIV PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap