Adjustable teaching blackboard

An adjustable blackboard technology, applied in the field of teaching equipment, can solve the problem of large blackboard occupation area, and achieve the effect of reducing the occupation of too much space and making it easy to move up and down

Inactive Publication Date: 2018-10-09
李志平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an adjustable blackboard for teaching, which solves the problem that the blackboard occupies a large area

Method used

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  • Adjustable teaching blackboard

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Such as Figure 1-3 As shown, the present invention provides a technical solution: an adjustable blackboard for teaching, including a vertical frame 1, a guide rail 2 is fixedly connected to the vertical frame 1, and a first pulley 3 is movably connected to the guide rail 2 , the first pulley 3 is fixedly connected to the first horizontal rod 4, the first horizontal rod 4 is fixedly connected to the first rotating shaft 5, the first rotating shaft 5 is ...

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Abstract

The invention relates to the technical field of teaching tools and discloses an adjustable teaching blackboard. By means of the adjustable teaching blackboard, the problem that the occupied area of ablackboard is large is solved. Guide rails are fixedly connected into a vertical frame. First sliding wheels are movably connected to the guide rails and fixedly connected to a first horizontal rod. Afirst rotating shaft is fixedly connected to the first horizontal rod. A first gear is fixedly connected to the first rotating shaft and movably connected to a first gear plate. A first blackboard isfixedly connected to a first horizontal frame. Second sliding wheels are movably connected to the guide rails and fixedly connected to a second horizontal rod. A second rotating shaft is fixedly connected to the second horizontal rod. A second gear is fixedly connected to the second rotating shaft and movably connected to a second gear plate. A second blackboard is fixedly connected to a second horizontal frame.

Description

technical field [0001] The invention relates to the technical field of teaching appliances, in particular to an adjustable blackboard for teaching. Background technique [0002] The blackboard does not specifically refer to the black board surface. In the traditional sense, it is a plane that can be repeatedly written with chalk. The board surface is hard and is mostly used for teaching. Blackboards are generally made of wood or frosted glass. Writing material to write on. The blackboard is an important teaching tool for students to receive knowledge in the current school teaching process. It is especially important for science students. The traditional blackboard is fixed on the wall by a hard plane, and the size of the blackboard area cannot be adjusted. [0003] With the development of society, some existing blackboards can also achieve the effect of adjusting the area, but most of them are manually adjusted. If the blackboard is larger and heavier, it is inconvenient to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04
CPCB43L1/04
Inventor 李志平
Owner 李志平
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