CN2838980Y

CN2838980Y - Dust-free blackboard

Info

Publication number: CN2838980Y
Application number: CN 200520092423
Authority: CN
Inventors: 王国忱
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-05
Filing date: 2005-09-05
Publication date: 2006-11-22
Anticipated expiration: 2015-09-05

Abstract

The utility model relates to a teaching aid, a dustless blackboard promptly, its characteristics are: an elongated wiper plate 14 is attached to the front surface of the blackboard 1, and the wiper plate 14 is composed of a shower pipe 10, a shower pipe 12, and a squeegee 11. Wherein, the spray pipe 10 is connected with a high-pressure water pipe, the spray pipe 12 is connected with an electric heating air pump, the edge of the scraping strip 11 is pressed on the board surface of the blackboard, and the blackboard eraser moves along the surface of the blackboard under the dragging of the electric walking device. When the blackboard eraser is used, after water is sprayed on the eraser plate, the water-soaked chalk handwriting is scraped off by the scraping strip, and then hot air is sprayed out by the heat spraying pipe to dry the blackboard. The blackboard can be divided into two parts, the periphery of the back surface of each blackboard is provided with a frame, when the two blackboards are overlapped front and back, the back surface of the front blackboard, the front surface of the back blackboard and the peripheral frames form a closed space, and the wiping board wipes in the closed cavity, so that dust cannot appear, the blackboard has the characteristics of simple structure and low cost, and the defects of the prior art are overcome.

Description

Dust-free blackboard

Affiliated technical field

The utility model is a kind of teaching aid, promptly a kind of dust-free blackboard.

Background technology

Present blackboard for education adopts chalk to write mostly, uses the hairbrush wiping then.In the process of wiping, can produce a large amount of dust, influence the healthy of indoor health and teachers and students.In order to address this problem, the someone has developed the liquid lettering pen, and also the someone has proposed ways such as water flushing.The former cost is higher, and is difficult to hoist and writes.The latter needs could be dry than the long time, thereby limited use.

Summary of the invention

The purpose of this utility model is that development is a kind of does not have dust, and can use the dust-free blackboard that use cost is lower again continuously.

Above-mentioned purpose is realized by following technical scheme: in the front of blackboard the strip wiping board is housed, wiping board is to be made of sparge pipe, spray heat pipe and scraper plate.Wherein, sparge pipe links to each other with high-pressure water pipe, and the spray heat pipe links to each other with the electric heating air pump, and the edge of scraping article is pressed on the plate face of blackboard, and wiping board moves on the blackboard surface, lower edge that drags of electrical walking device.During use, wiping board water spray back, is dried blackboard by spray heat pipe ejection hot gas wiping off through the chalk person's handwriting of water-soaked by scraping article again.

Said blackboard has two, is equipped with frame around the back side of every blackboard, slides at two relative frames in the wiping board two ends, and the blackboard both sides are provided with the drive link of minitype motor driving, and drive link interrelates by driving-belt and wiping board.Be provided with slideway in the blackboard both sides, blackboard can slide along slideway, and when two blackboards forward lapped, the front of the back side of front blackboard and back blackboard and frame all around formed an airtight space.

The dust-free blackboard of employing technique scheme in wiping process, dust can not occur, and simple in structure, with low cost, has overcome the shortcoming of prior art.

Below, be described further in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the front view of a kind of embodiment, and Fig. 2 is its left view, and Fig. 3 is its vertical view;

Fig. 4 is the front view of parts blackboard, and Fig. 5 is its left view, and Fig. 6 is its vertical view, and Fig. 7 is its rearview;

Fig. 8 is the front view of parts slideway, and Fig. 9 is its left view;

Figure 10 is the front view of parts wiping board, and Figure 11 is its left view.

Among the figure as seen: blackboard 1, slideway 2, fixator 3, lifting motor 4, hoist cable 5, suspension ring 6, lifting axle 7, pulley 8, water tank 9, sparge pipe 10, scraper plate 11, spray heat pipe 12, frame 13, wiping board 14, wiping board motor 15, drive link 16, driving-belt 17, roller 18, transposition mouth 19, chute 20, hole for water spraying 21, fumarole 22.

The specific embodiment

First kind: with reference to figure 7 as seen, adorn a strip wiping board 17 of erectting in the front of blackboard, there are a sparge pipe 10 and a spray heat pipe 12 in wiping board 17 the insides, and the one side of close plate face is equipped with scraper plate 11.Sparge pipe 10 links to each other by switch with high-pressure hydraulic pump, and spray heat pipe 12 links to each other by switch with the electric heating air pump.In blackboard 1 both sides, a micromachine 15 respectively is housed, can be by drive link 16 and 14 left and right sides translations of driving-belt 17 pulling wiping boards.During use, earlier wiping board 14 is placed suitable position, write then.When needing wiping, start a motor, open switch, wiping board 14 can be to the blackboard water spray in moving, and scraper plate can be wiped the person's handwriting of chalk off, and washes away with water, and the hot gas that sprays heat pipe 12 ejections subsequently can be the moisture oven dry that remains on the blackboard.In case of necessity, also can close the switch of water pipe, dry the wiping operation separately.

Second kind: as shown in Figure 1, 2, 3, this blackboard 1 has two up and down, and pulley 8 is equipped with in both sides, and pulley 8 can be in the walking of slideway 2 the insides of both sides.On slideway 2, be provided with lifting motor 4, drive hoist cable 5 pulling blackboards by lifting axle 7 and slide along slideway 2.Because the slideway broad allows two blackboards to forward lap.Shown in Fig. 4,5,6,7, around the back side of blackboard frame 13 is housed, wiping board 14 and running gear are equipped with in the inside.When two blackboards front and back are relative, pull the spanner of fixator 3, can make two blackboards close, form an airtight cavity by frame all around 13, and then start wiping board 14, can clean the writing on the blackboard of back, and dust can not be gone out frame, hot gas also can keep the long period in cavity.Simultaneously, can also write the sealing wiping that hockets of two blackboards on the blackboard outside.

Shown in Fig. 8,9, each slideway 2 the inside all is provided with two chutes 20, so that walk for the pulley of two blackboards.Be provided with four transposition mouths 19 on the cell wall of centre, blackboard can change to another chute by transposition mouth 19.

Shown in Figure 10,11, wiping board 14 is by sparge pipe 10, scraper plate 11, the formations such as roller 18 at spray heat pipe 12 and two ends, its sparge pipe 10 links to each other with high-pressure water pipe, and high-pressure water pipe communicates with water tank 9 by high-pressure pump, also can establish the cavity that reclaims waste water in the water tank, also filtering circulating device can be installed, waste water is utilized once more.The hole for water spraying 21 of sparge pipe preferably has atomization, to reach the purpose of even water saving.Establish the electric heating air pump in the spray heat pipe 12, air suction heating is sprayed to blackboard by spray hot hole 22 get final product.Certainly, under the situation of giving a lesson simultaneously in a plurality of classrooms, can adopt water source and the hot gas source of concentrating.

The third: the course of work of aforementioned blackboard can adopt other mechanical devices or automaton to control.

Claims

1. dust-free blackboard, it is characterized in that: strip wiping board (14) is housed in the front of blackboard (1), wiping board (14) is to be made of sparge pipe (10), spray heat pipe (12) and scraper plate (11), wherein, sparge pipe (10) links to each other with high-pressure water pipe, spray heat pipe (12) links to each other with the electric heating air pump, and the edge of scraping article (11) is pressed on the plate face of blackboard (1), and wiping board (14) can move on the blackboard surface, lower edge that drags of electrical walking device.

2. dust-free blackboard according to claim 1, it is characterized in that: said blackboard (1) has two, be equipped with frame (13) around the back side of every blackboard, slide in two relative frames (13) in said wiping board (14) two ends, blackboard (1) both sides are provided with the drive link (16) that micromachine (15) drives, drive link (16) interrelates by driving-belt (17) and wiping board (14), be provided with slideway (2) in blackboard (1) both sides, blackboard (1) can slide along slideway (2), when two blackboards forward lapped, the front of the back side of front blackboard and back blackboard and frame all around (13) formed an airtight space.