CN2350215Y

CN2350215Y - Quick dustless noiseless double-purpose automatic blackboard eraser

Info

Publication number: CN2350215Y
Application number: CN 97229705
Authority: CN
Inventors: 陈宝龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-15
Filing date: 1997-10-15
Publication date: 1999-11-24
Anticipated expiration: 2007-10-15

Abstract

The utility model relates to a quick dustless noiseless double-purpose automatic blackboard eraser. The utility model is characterized in that a screw bolt and a buffering and noise silencing spring 4 are arranged between a rail 3 and a blackboard frame, an upper box 6 and a lower box 11 are arranged on the rail 3, an erasing roller 9 for erasing the chalk handwriting and a dust removing roller 10 capable of removing the chalk dust stained on the erasing roller 9 are arranged between the upper box 6 and the lower box 11, and the chalk dust is collected in a dust collecting box 13 under the action of a duster 12. A handle can be inserted in a jack 14 of a hand rocking handle when power is cut to perform manual drive.

Description

The dual-purpose automatic blackboard eraser of a kind of quick dustless noiselessness

This practical realia that relates to, specifically a kind of fast automatic blackboard eraser that has dust suction, removes noise.

People usually need to use chalk to write on blackboard and the continuous wiping of needs when teaching.Well-known manually erase the board not only fatigue but also a large amount of holding times of need, and the chalk foam has a strong impact on the classroom health.

The purpose of this utility model just provides a kind of have fast dust suction and noiseless automatic blackboard eraser, both can finish quite dried artificial use blackboard eraser and wipe the high-quality automatic blackboard wiping articles for use that number picks up time within the several seconds.

In order to achieve the above object, this reality is novel to be realized by following scheme, and its design feature is it by track, top box, nowel, wiper rolls, take off dirt roller, outer cover, dust catcher, disposal box, motor, reel and travel switch are formed voluntarily.

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model

Fig. 1 is the utility model structural representation.1-reel voluntarily wherein, the 2-lead, the 3-track, the 4-spring, the 5-travel switch, 6-top box, 7-motor, the 8-outer cover, 9-wiper rolls, 10-take off the dirt roller, 11-nowel, 12-dust catcher, 13-disposal box, the manual rocking handle jack of 14-.

As shown in Figure 1, track of the present utility model can be connected with the blackboard frame with a chain for binding criminals bolt that has spring 4, the pressure that is produced by spring makes track 3 compress to the blackboard surface direction, thereby make the top box 6 and the nowel 11 that place on the track 3 produce certain pressure, when wiper rolls rotates, blackboard surface is rubbed together with 9 pairs of blackboard surfaces of wiper rolls.Spring 4 also plays damping, the effect that abates the noise.Reel 1 can make motor 7 remain straight with the lead 2 that is connected of power supply voluntarily, be placed in the wiper rolls 9 in the middle of top box 6 and the nowel 11 and take off that dirt roller 10 is driven by motor 7 and fast rotational and along track 3 walkings, the chalk foam that splashes is together with sticking in the chalk foam of taking off on the wiper rolls 9 at any time and be blocked by outer cover 8 by taking off dirt roller 10, outer cover 8 has the foamed plastics thin slice of installing to intercept with the contact site of blackboard surface, the chalk foam can not be overflowed, and the airflow that produces owing to dust catcher 12 extracting airs, flow in the outer cover 8 by outer cover 8 peripheries, the chalk foam is brought in the disposal box 13 along the hole and the pipeline of outer cover 8 lower ends, the chalk foam that puts together can arbitrarily be outwelled, thereby eliminate the chalk foam effectively and pollute the classroom, only need press push button during use, can wipe the chalk writing on the blackboard within several seconds, this moment, travel switch 2 was cut off the electricity supply immediately.Handle can be inserted in the manual rocking handle jack 14 during power failure, carry out manual driven.

The utility model is simple and reasonable for structure, can fast and high quality ground blackboard wiping and dustless, noiselessness, very be fit to the usefulness of teaching.

Claims

1. dual-purpose automatic blackboard eraser of quick dustless noiselessness, comprise reel (1) voluntarily, lead (2), track (3), spring (4), travel switch (5), top box (6), motor (7), outer cover (8), wiper rolls (9), take off dirt roller (10), nowel (11), dust catcher (12), disposal box (13), manual rocking handle jack (14), it is characterized in that track (3) is connected with blackboard by damping and silencing spring (4) and a chain for binding criminals bolt, the top box (6) that can slide is arranged on the track (3), nowel (11), the outer cover (8) that can intercept dust is arranged in the middle of top box (6) and nowel (11), what there was the wiper rolls (9) of one or several erasable blackboards outer cover (8) inside and can takes off dirt takes off dirt roller (10), nowel (11) but in be provided with the dust catcher (12) of dust suction, nowel (11) bottom is provided with the disposal box (13) that can collect dust, top box (6) but top is provided with the reel voluntarily (1) of rolling lead (2), and manual rocking handle jack (14).