Caster structure and multifunctional teaching tool for classroom teaching
A teaching tool, multi-functional technology, applied in the direction of casters, wheels, vehicle parts, etc.
Active Publication Date: 2020-01-31
HUIZHOU UNIV
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] However, for a traditional blackboard, it usually only has simple functions of writing and displaying text; for a traditional lecture table, it usually only has a simple function of placing items
Method used
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[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0047] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...
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The invention discloses a caster structure and a multifunctional teaching aid for classroom teaching. The caster structure comprises a wheel carrier main body, a mobile roller, a fixed cushion block,an adjusting bolt and an adjusting hand wheel. A roller mounting cavity and a cushion block mounting cavity are formed in the wheel carrier main body; the mobile roller is rotationally mounted in theroller mounting cavity; the fixed cushion block is mounted in the cushion block mounting cavity in a sliding manner; a lifting and sliding guide groove is formed in the fixed cushion block; a liftingand sliding guide block matched with the lifting and sliding guide groove is arranged on the wall of the cushion block mounting cavity; a threaded hole is formed in the fixed cushion block; one end ofthe adjusting bolt is screwed in the threaded hole; the other end of the adjusting bolt is fixedly connected with the adjusting hand wheel; the adjusting hand wheel drives the adjusting bolt to rotate; and through matching between the lifting and sliding guide groove and the lifting and sliding guide block, the fixed cushion block is enabled to slide along the wall of the cushion block mounting cavity. The caster structure can easily move panels on the one hand and can also fix the positions of the panels on the other hand.
Description
technical field [0001] The invention relates to a caster structure and a multifunctional teaching tool for classroom teaching. Background technique [0002] Blackboards are generally made of wood or frosted glass, and can be written on with specific writing materials such as chalk, mostly black, dark green, white or beige. For more than two hundred years, blackboards have witnessed the step-by-step development of world education and spread knowledge for mankind from the earliest black paint on the surface of hard objects such as wood and cement to modern terrazzo glass, color-coated steel plates, and composite materials. , Universal education, made great contributions. Now, the types of blackboards have also become complex and diverse. From the color, there are blackboards, green boards, whiteboards, etc.; from the surface shape, there are flat panels, arc panels, etc.; , push-pull board, lifting board, magnetic blackboard, etc.; in terms of use, there are teaching blackbo...
Claims
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IPC IPC(8): B60B33/04
CPCB60B33/04
Inventor 王炜李帆
Owner HUIZHOU UNIV