CN203246231U

CN203246231U - Novel semi-automatic blackboard

Info

Publication number: CN203246231U
Application number: CN 201320140920
Authority: CN
Inventors: 蒋睿; 孔磊
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2013-03-26
Filing date: 2013-03-26
Publication date: 2013-10-23
Anticipated expiration: 2023-03-26

Abstract

The utility model discloses a novel semi-automatic blackboard. The novel semi-automatic blackboard is characterized by structurally comprising a blackboard outer frame (1), an inner board (2), an inner brush (3), an inner brush control knob (4), an outer frame slide way (5), an outer board (6), an outer brush control knob (7), an outer brush (8) and a pulley set (9), wherein the inner board (2) and the outer board (6) keep balance in the middle of the blackboard outer frame (1) under the effect of gravity through the pulley set (9) and the outer frame slide way (5), the outer brush (8) and the outer brush control knob (7) are combined and connected in the middle of the outer frame, and the inner brush (3) and the inner brush control knob (4) are combined and fixedly connected at the top of the inner side of the outer board (6). The novel semi-automatic blackboard improves the use efficiency due to the adopted semi-automatic blackboard structure, and is rapid and convenient to use.

Description

A kind of New semi automatic blackboard

Technical field

The utility model relates to a kind of automanual new type blackboard, specifically relates to a kind of semi-automatic wiping type blackboard that adopts long strip type front and back brush that chalk dust is carried out wiping.

Background technology

Impart knowledge and educate people, the most important thing, and most of the giving lessons of school of China all be unable to do without blackboard this shows a kind of important meaning of blackboard easy to use.

Common blackboard has following several at present:

The first blackboard is prevailing type blackboard, formed by a bulk of plank and a blackboard eraser, this blackboard technique is simple, very common, but this blackboard at first do not consider different people the height problem and so that service efficiency greatly reduce, secondly this blackboard-cleaning is very inconvenient, wipes after needing teacher or classmate to write whole writing on the blackboard.

The second blackboard is sliding-type blackboard common in the university, and this blackboard has been considered writing on the blackboard people's height problem than normal blackboard, has also greatly improved the area utilization rate of blackboard, is difficult to wiping but still exist, the shortcoming such as lose time.

The 3rd class blackboard then is some automatic blackboards, and it is the basis that this class blackboard adopts Sliding blackboard mostly, utilizes electric energy by some devices the plate face to be carried out automatic erasing, but compares this class blackboard and uneconomical and be difficult to maintenance, is not suitable for large tracts of land universal.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art, and a kind of New semi automatic blackboard that can make things convenient for to a greater extent the educator to use is provided.

In order to solve the problems of the technologies described above, the utility model is to be achieved through the following technical solutions:

A kind of New semi automatic blackboard, it is characterized in that: its structure comprises blackboard housing, inner plate surface, interior brush, interior brush control handle, housing slideway, outer plate surface, outer brush control handle, outer brush, assembly pulley, in the described structure, inner plate surface and outer plate surface keep balance by assembly pulley and housing slideway in the middle of the blackboard housing under Action of Gravity Field, outer brush and outer brush control handle be in conjunction with the middle part that is connected to housing, interior brush and interior brush control handle in conjunction with and be fixedly connected on the inboard top of outer plate surface.

The rotation control outer brush bristle of described outer brush control handle and the degree of engagement of outer plate surface, the interior brush of rotation control of interior brush control handle and the degree of engagement of inner plate surface, interior brush bristle contacts with inner plate surface, and two ends are overlapped in the housing slideway.

Compared with prior art, the beneficial effects of the utility model are:

Realized the automatic blackboard wiping and do not needed extra energy resource consumption or the time waste made, when realizing basic writing on the blackboard function so that the blackboard utilization ratio is the highest, the wiping most convenient.

Description of drawings

Fig. 1 is the semi-automatic blackboard general structure of the utility model schematic diagram.

Fig. 2 is the sliding system structural representation of the semi-automatic blackboard of the utility model.

The specific embodiment

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

As shown in Figure 1, 2, the utility model is comprised of blackboard housing 1, inner plate surface 2, interior brush 3, interior brush control handle 4, housing slideway 5, outer plate surface 6, outer brush control handle 7, outer brush 8, assembly pulley 9, and wherein inner plate surface 2 and outer plate surface 6 keep balance by assembly pulley 9 and housing slideway 5 and move up and down freely under external force in the middle of the blackboard housing under Action of Gravity Field.Outer brush 8 and outer brush control handle 7 are in conjunction with the middle part that is connected to housing, the rotation of outer brush control handle 7 can be controlled the degree of engagement of outer brush 8 bristles and outer plate surface 6, interior brush 3 and interior brush control handle 4 in conjunction with and be fixedly connected on the inboard top of outer plate surface 6, the rotation of interior brush control handle 4 can be controlled the degree of engagement of interior brush 3 and inner plate surface 2, with the 2 contacted whiles of inner plate surface can be in housing slideway 5 freely about, these devices can comprehensive wiping when both having guaranteed to need wiping, the free degree that brush can have been packed up when having guaranteed again not need wiping.Interior brush 3 bristles contact with inner plate surface 2, and two ends are overlapped in the housing slideway 5.

The undeclared part that relates in the utility model is same as the prior art or adopt prior art to be realized.

Claims

1. A novel semi-automatic blackboard is characterized in that: its structure comprises blackboard outer frame (1), inner board surface (2), inner brush (3), inner brush control knob (4), outer frame slideway (5) , outer plate surface (6), outer brush control knob (7), outer brush (8), pulley block (9), in the described structure, inner plate surface (2) and outer plate surface (6) pass pulley block (9) And the outer frame slideway (5) keeps balance in the middle of the blackboard outer frame (1) under the action of gravity, the outer brush (8) and the outer brush control knob (7) are combined and connected in the middle of the outer frame, the inner brush (3) and the inner brush The brush control knob (4) is combined and fixedly connected to the inside top of the outer panel surface (6).

2. A kind of novel semi-automatic blackboard according to claim 1, it is characterized in that: the degree of engagement of the rotation control outer brush (8) bristles and outer board surface (6) of said outer brush control knob (7), the inner brush The rotation of the control knob (4) controls the degree of engagement between the inner brush (3) and the inner panel surface (2). )middle.