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Telescopic dustproof self-erasing blackboard

A blackboard and self-wiping technology, applied in the field of self-wiping blackboards, can solve problems such as inability to apply to different sites, unfavorable environmental cleanliness and protection, and harm to physical health.

Inactive Publication Date: 2021-01-29
刘露飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages that it takes a long time to wipe the blackboard on a large area, the writing area of ​​the blackboard is fixed and cannot be used in different places, and dust is generated, which is harmful to health and is not conducive to the cleanliness and protection of the environment. The technical problem is: to provide a method that can be automatically erased after writing. The retractable dust-proof self-erasing blackboard can adapt to different venues, automatically absorb dust after erasing, and protect the health of personnel and clean environment

Method used

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  • Telescopic dustproof self-erasing blackboard
  • Telescopic dustproof self-erasing blackboard
  • Telescopic dustproof self-erasing blackboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] A retractable dustproof self-erasing blackboard such as Figure 1-7As shown, it includes a fixed box 1, a fixed bottom plate 101, a rotating shaft box 102, a blackboard block 103, a slotted shaft box 104, a fixed backing plate 105, an auxiliary plate 106, a power motor 2, a central plate 201, and a motor extension shaft 202 , first pulley 203, first support plate 204, first rotating shaft 205, double pulley 206, second support plate 207, rotating worm 2071, second pulley 208, redirection support 2081, rotating turbine 20, connecting rotation Rod 210, blackboard rotating shaft 2101, blackboard eraser support rod 211 and blackboard eraser 212, the fixed box 1 is placed on the ground, the fixed bottom plate 101 is fixedly connected to the bottom of the fixed box 1, and the rotating shaft box 102 is connected to the upper side of the fixed box 1, The rotating shaft box 102 is rectangular tubular, and there are two blackboard stoppers 103. The lower blackboard stopper 103 is...

Embodiment 2

[0124] On the basis of embodiment 1, a kind of retractable dustproof self-erasing blackboard, such as Figure 8-13 As shown, the pedal mechanism includes a mobile box 4, a pedal 401, a pedal groove 402, a mobile connecting rod 403, a mobile slider 404, a mobile slider 4041, a stressed spring 4042, a wheel shaft 405, a brake plate 406, a first pull Spring 4061 is connected with rotating block 407, and mobile box 4 is fixedly connected to the bottom of the left side connecting rotating rod 210; Stepping groove 402 is fixedly connected in moving box 4, has two rectangular sliding holes on both sides before and after stepping on groove 402; The mobile connecting rod 403 passes through the upper side of the stepping groove 402, and the moving connecting rod 403 is slidably connected to the stepping groove 402; the pedal 401 is fixedly connected to the upper end of the moving connecting rod 403, and the stepping pedal 401 is located on the upper side of the stepping groove 402; the m...

Embodiment 3

[0130] On the basis of embodiment 2, a kind of retractable dustproof self-erasing blackboard, such as Figure 14-16 As shown, the dust suction mechanism includes a dust box 6, a first through pipe 6001, a second through pipe 6002, a fifth pulley 601, a dust suction box 602, a door support 603, a sixth pulley 604, and a first bevel gear 605, the second bevel gear 6051, the fan 606, the dust replacement drawer 607 and the dust-proof ventilation plate 608, the dust box 6 is fixed on the fixed bottom plate 101, and the dust box 6 is located on the right front side of the fixed bottom plate 101; the fifth pulley 601 is fixed At the right end of the motor extension shaft 202; the dust collection box 602 is fixedly connected on the fixed base plate 101, and the dust collection box 602 is located behind the dust box 6; The lower end of 6001 passes through the fixed box 1 and communicates with the dust collection box 602 in the fixed box 1; Above; the door-shaped support 603 is fixedl...

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Abstract

The invention relates to a self-erasing blackboard, in particular to a telescopic dustproof self-erasing blackboard, and aims to solve the technical problem about how to provide the telescopic dustproof self-erasing blackboard which can realize automatic erasing after writing, can telescope to adapt to different places, can automatically suck away dust after erasing and can protect the body healthof personnel and the cleanliness of the environment. According to the technical scheme, the telescopic dustproof self-erasing blackboard comprises a fixed box, a fixed bottom plate, a rotating shaftbox and the like, the fixed box is placed on the ground, the fixed bottom plate is fixedly connected to the bottom end of the fixed box, the rotating shaft box communicates with the side, away from the fixed bottom plate, of the fixed box, and the rotating shaft box is in a rectangular pipe shape. According to the blackboard, handwriting on the blackboard can be automatically erased, a blackboarderaser can move leftwards and rightwards, the handwriting on the blackboard can be erased more carefully, the cleanliness degree of the surface of the blackboard is enhanced, and writing for the nexttime is facilitated.

Description

technical field [0001] The invention relates to a self-erasing blackboard, in particular to a retractable dust-proof self-erasing blackboard. 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 written repeatedly. The board surface is hard and is mostly used for teaching. The blackboard is an indispensable auxiliary tool in the current learning process. In schools, training and other places, blackboards are used very frequently. [0003] 1. The blackboard used in the first stage is usually a blackboard fixed on the wall or a simple movable blackboard. Most blackboards can not be moved while the writing area is large, and the movable blackboard is often too small for writing. [0004] 2. Most of the ways of wiping blackboards are still manually wiping blackboards. The existing automatic blackboard wiping method also wipes the writing on the blackboard at one time, which is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04B43L21/02
CPCB43L1/04B43L21/02
Inventor 刘露飞
Owner 刘露飞
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