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Convenient-to-adjust teaching instrument

The technology of a teaching instrument and an articulated frame is applied in the field of teaching instruments that are easy to adjust, which can solve the problems of inconvenient use by teachers or students, inconvenient adjustment of the height and angle of the blackboard, etc., and achieve the effects of wide application range, reasonable structure and convenient use.

Inactive Publication Date: 2019-07-23
JIAOZUO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blackboard, traditionally speaking, it is a plane that can be repeatedly written with chalk, not specifically black board surface, from the earliest use of black paint on the surface of hard objects such as wood boards and cement, to the emergence of ink glass blackboards in recent years, Composite material blackboards have made great contributions to the spread of knowledge and popularization of education for human beings. The existing blackboards are generally fixed blackboards or push-pull boards, lifting boards. , making it very inconvenient for teachers or students of different heights to use. Sometimes due to the reflection of light, students in some positions cannot see the content on the blackboard at all. The teaching instrument is very necessary

Method used

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  • Convenient-to-adjust teaching instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1-7 Shown, a kind of teaching instrument that is convenient to adjust, it comprises base plate 1, leading screw 13, support disc 20, support plate 24, blackboard 27, the underside of described base plate 1 is provided with wheel frame 2, and described wheel frame 2 is provided with a wheel 3 on the lower side, the upper side of the bottom plate 1 is symmetrically provided with a first hinged frame 4 and a second hinged frame 5, and the upper side of the first hinged frame 4 is connected with a first rotating rod 6, The upper side of the second articulated frame 5 is connected with the second rotating rod 7, and the outer side of the screw 13 is respectively provided with a first slide block 10 and a second slide block 11, and the first slide block 10 is The upper side of the first slider 10 is fixedly provided with the fifth articulated frame 14, the lower side of the first slider 10 is fixedly provided with the third articulated frame 8, and the upper s...

Embodiment 2

[0030] Such as Figure 1-7 Shown, a kind of teaching instrument that is convenient to adjust, it comprises base plate 1, leading screw 13, support disc 20, support plate 24, blackboard 27, the underside of described base plate 1 is provided with wheel frame 2, and described wheel frame 2 is provided with a wheel 3 on the lower side, the upper side of the bottom plate 1 is symmetrically provided with a first hinged frame 4 and a second hinged frame 5, and the upper side of the first hinged frame 4 is connected with a first rotating rod 6, The upper side of the second articulated frame 5 is connected with the second rotating rod 7, and the outer side of the screw 13 is respectively provided with a first slide block 10 and a second slide block 11, and the first slide block 10 is The upper side of the first slider 10 is fixedly provided with the fifth articulated frame 14, the lower side of the first slider 10 is fixedly provided with the third articulated frame 8, and the upper s...

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PUM

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Abstract

The invention relates to a convenient-to-adjust teaching instrument. The instrument comprises a bottom plate, a lead screw, a supporting disc, a supporting plate and a blackboard, a supporting tube isarranged on the upper side of the supporting plate, a lower ring disc is arranged on the upper side of the supporting tube, an annular groove is formed in the upper surface of the lower ring disc, arolling body is arranged in the annular groove, an upper ring disc is arranged on the lower side of the middle of the supporting plate, the lower side of the upper ring disc is in contact with the rolling body, a left supporting frame is arranged on the upper side of the left portion of the supporting plate, a third bearing is arranged on the left supporting frame, a left blackboard rotary shaft is arranged on the inner side of the third bearing, a right supporting frame is arranged on the upper side of the right portion of the supporting plate, the right supporting frame is provided with a first bearing and a second bearing, the inner side of the first bearing is provided with a first gear rotary shaft, the left side of the first gear rotary shaft is provided with a first gear, the rightside of the first gear rotary shat is provided with an adjusting knob, the inner side of the second bearing is provided with a second gear rotary shaft, and the right side of the second gear rotary shaft is provided with a second gear. The instrument has the advantages that the structure is reasonable and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of teaching equipment, and in particular relates to a teaching instrument which is easy to adjust. Background technique [0002] Blackboard, traditionally speaking, it is a plane that can be repeatedly written with chalk, not specifically black board surface, from the earliest use of black paint on the surface of hard objects such as wood boards and cement, to the emergence of ink glass blackboards in recent years, Composite material blackboards have made great contributions to the spread of knowledge and popularization of education for human beings. The existing blackboards are generally fixed blackboards or push-pull boards, lifting boards. , making it very inconvenient for teachers or students of different heights to use. Sometimes due to the reflection of light, students in some positions cannot see the content on the blackboard at all. A teaching instrument is very necessary. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04A47B97/04
CPCA47B97/04B43L1/04
Inventor 李宁孙占权陈静何峰
Owner JIAOZUO UNIV
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