CN208469416U

CN208469416U - A kind of efficient adjustable blackboard eraser

Info

Publication number: CN208469416U
Application number: CN201820528151.8U
Authority: CN
Inventors: 张典
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-14
Filing date: 2018-04-14
Publication date: 2019-02-05
Anticipated expiration: 2028-04-14

Abstract

The utility model provides a kind of efficient adjustable blackboard eraser；The wiping effect of blackboard eraser is increased well, and the dust for reducing classroom disperses, and improves air quality；Its technical solution solved includes ontology, ontology is the U-shaped structure that Open Side Down, sliding block capable of sliding back and forth is installed in the U-shaped groove of ontology, the lower end surface of sliding block and the lower end surface of ontology are concordant, the lower end surface of ontology is respectively arranged on the left side and the right side cleaning layer, and the lower end surface of sliding block is equipped with dismountable adsorption layer；The utility model is novel, clever structure.

Description

A kind of efficient adjustable blackboard eraser

Technical field

The utility model relates to teaching aid technical field, especially a kind of efficient adjustable blackboard eraser.

Background technique

Currently, teacher is usually that chalk is used to write on blackboard in teaching board, then by blackboard eraser into Row cleaning treatment, existing blackboard eraser usually being bonded by shell and sponge, although this cleaning mode can wipe it is black Written trace on plate, but during being cleaned, it may appear that a large amount of dust, these dust are sucked by academics and students In lung, if things go on like this, then injury difficult to treat can be caused to human body, and current wiping blackboard structure design is too simple, such as Fruit designs higher situation for blackboard, and the inadequate people of height can not completely clean blackboard, can there is cleaning Less than the case where, can not be convenient for people to use.

Furthermore existing blackboard eraser is wiping after a certain period of time, it is often necessary to dust is cleared up, it is very inconvenient, and design one kind The blackboard eraser that soft or hard combination can expand erasing area simultaneously is necessary.

Utility model content

For above situation, for the defect for overcoming the prior art, the utility model provides a kind of efficient adjustable blackboard eraser； The wiping effect of blackboard eraser is increased well, and the dust for reducing classroom disperses, and improves air quality.

Its technical solution solved includes ontology, and ontology is the U-shaped structure that Open Side Down, installation in the U-shaped groove of ontology There is sliding block capable of sliding back and forth, the lower end surface of sliding block and the lower end surface of ontology are concordant, at left and right sides of the lower end surface of ontology respectively Equipped with cleaning layer, the lower end surface of sliding block is equipped with dismountable adsorption layer.

Preferably, the width of the adsorption layer is 10-20cm, and the width of each cleaning layer is 10-15cm, adsorption layer Width be greater than cleaning layer width.

Preferably, the left and right sidewall of the U-shaped groove of the ontology is equipped with sliding slot, and the left and right ends of sliding block is equipped with convex Bittiness, protruding block is installed on and constitutes the structure that sliding block can slide back and forth in sliding slot in sliding slot.

Preferably, the front-rear direction length of the sliding block is equal to the length of ontology, and upper end of slide block face is equipped with multiple along cunning The location hole of block front-rear direction part, ontology are equipped with positioning bolt, and positioning bolt lower end is through ontology and can be inserted into location hole Positioning of the interior realization to sliding block, front and back is symmetrically respectively equipped with one to positioning bolt on the body.

Preferably, the adsorption layer is fixed by screws in the lower end surface of sliding block.

Preferably, the upper surface of the ontology is equipped with handle.

The utility model is novel, clever structure, increases the wiping effect of blackboard eraser well, reduces classroom Dust disperses, and improves air quality.

Detailed description of the invention

Fig. 1 is the utility model main view.

Fig. 2 is the utility model side view.

Fig. 3 is the utility model bottom view.

Fig. 4 is that the utility model sliding block skids off status diagram after ontology.

Specific embodiment

Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.

By Fig. 1-4 it is found that the utility model includes ontology 1, ontology 1 is the U-shaped structure that Open Side Down, and the U-shaped of ontology 1 is recessed Sliding block 2 capable of sliding back and forth is installed, the lower end surface of sliding block 2 is concordant with the lower end surface of ontology 1, the lower end surface of ontology 1 in slot It is respectively arranged on the left side and the right side cleaning layer 3, the lower end surface of sliding block 2 is equipped with dismountable adsorption layer 4.

The width of the adsorption layer 4 is 10-20cm, and the width of each cleaning layer 3 is 10-15cm, the width of adsorption layer 4 Degree is greater than the width of cleaning layer 3.

The left and right sidewall of the U-shaped groove of the ontology 1 is equipped with sliding slot 5, and the left and right ends of sliding block 2 is equipped with protruding block 6, protruding block 6 is installed on and constitutes the structure that sliding block 2 can slide back and forth in sliding slot 5 in sliding slot 5.

The front-rear direction length of the sliding block 2 is equal to the length of ontology 1, and 2 upper surface of sliding block is equipped with multiple before sliding block 2 The location hole 7 of rear direction part, ontology 1 are equipped with positioning bolt 8, and 8 lower end of positioning bolt is through ontology 1 and can be inserted into location hole The positioning to sliding block 2 is realized in 7, the front and back on ontology 1 of positioning bolt 8 is symmetrically respectively equipped with one.

In order to facilitate the replacement of adsorption layer 4, the adsorption layer 4 is fixed on the lower end surface of sliding block 2 by screw 9.

The upper surface of the ontology 1 is equipped with handle 10.

The utility model is when specifically used, in normal use, makes the front/rear end of sliding block 2 and the front and back end of ontology 1 The position of sliding block 2 is fixed in face of neat, and by positioning bolt 8, blackboard eraser and sliding block 2 form an entirety knot at this time Structure is that cleaning layer 3 first contacts the position for needing to wipe first, cleaning layer 3 is that material is harder and wear-resisting when carrying out wiping blackboard Brush structure, can be very good when being wiped to chalk trace carry out first time scraping, the followed by suction of 2 lower end of sliding block Cleaning layer 3 scrapes the region nuzzled up for the attached contact of layer 4, and adsorption layer 4 is the preferably soft woolliness material of adsorptivity, be can be very good Dust is adsorbed, a large amount of dust can be left after scraping at this time, adsorption layer 4 can effectively adsorb dust, in certain journey It can reduce writing freely and easily for dust on degree, while secondary cleaning can be carried out to the left trace of cleaning layer 3, flexible material can be with It is effectively cleared up inside the pit that can not be wiped to cleaning layer 3.

Furthermore when the area for needing to wipe on blackboard is larger or due to higher part position can not get at wiped when, this When the position of sliding block 2 can be could be adjusted to expand erasing area, positioning bolt 8 is unclamped first, sliding block 2 is slid back and forth Ontology 1 is stretched out to suitable position, and is sticked into corresponding location hole 7 by positioning bolt 8 and the position of sliding block 2 is fixed, At this time due to sliding block 2 stretch out 1 a certain distance of ontology, can effectively expand the area of blackboard eraser, can carry out quickly and The wiping of eminence.

Since adsorption layer 4 is easy to adsorb dust, after a certain period of use time, need to replace adsorption layer 4, to reach To better adsorption effect, the release adsorption layer 4 of screw 9 can be screwed at this time and is replaced.

The utility model, can be effectively to black by devising cleaning layer 3 and the different alternate arrangement of structure of adsorption layer 4 Plate carries out wiping and carries out a degree of absorption to the dust wiped out, and bring of less dust dispersing endangers；Furthermore lead to The expansion of blackboard eraser area may be implemented in the sliding block 2 that crossing can slide, and increases wiping efficiency.

Claims

1. a kind of efficient adjustable blackboard eraser, which is characterized in that including ontology (1), ontology (1) is the U-shaped structure that Open Side Down, this It is equipped in the U-shaped groove of body (1) sliding block capable of sliding back and forth (2), the lower end surface of sliding block (2) and the lower end surface of ontology (1) Concordantly, the lower end surface of ontology (1) is respectively arranged on the left side and the right side cleaning layer (3), and the lower end surface of sliding block (2) is equipped with dismountable absorption Layer (4).

2. a kind of efficient adjustable blackboard eraser according to claim 1, which is characterized in that the width of the adsorption layer (4) For 10-20cm, the width of each cleaning layer (3) is 10-15cm, and the width of adsorption layer (4) is greater than the width of cleaning layer (3).

3. a kind of efficient adjustable blackboard eraser according to claim 1, which is characterized in that the U-shaped groove of the ontology (1) Left and right sidewall be equipped with sliding slot (5), the left and right ends of sliding block (2) is equipped with protruding block (6), and protruding block (6) is installed on sliding slot (5) structure that sliding block (2) can slide back and forth in sliding slot (5) is constituted in.

4. a kind of efficient adjustable blackboard eraser according to claim 1, which is characterized in that the front and back of the sliding block (2) It is equal to the length of ontology (1) to length, sliding block (2) upper surface is equipped with multiple location holes along sliding block (2) front-rear direction part (7), ontology (1) is equipped with positioning bolt (8), and positioning bolt (8) lower end is through ontology (1) and can be inserted into real in location hole (7) Now to the positioning of sliding block (2), positioning bolt (8) front and back on ontology (1) is symmetrically respectively equipped with one.

5. a kind of efficient adjustable blackboard eraser according to claim 1, which is characterized in that the adsorption layer (4) passes through spiral shell Nail (9) is fixed on the lower end surface of sliding block (2).

6. a kind of efficient adjustable blackboard eraser according to claim 1, which is characterized in that the upper surface of the ontology (1) Equipped with handle (10).