CN201833780U

CN201833780U - Bidirectional self-erasing absorbing type wide blackboard eraser

Info

Publication number: CN201833780U
Application number: CN2010205598235U
Authority: CN
Inventors: 吴兆花
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-05-18
Anticipated expiration: 2020-10-14

Abstract

The utility model discloses a bidirectional self-erasing absorbing type wide blackboard eraser, which consists of a box (1) and a blackboard eraser (2). The bidirectional self-erasing absorbing type wide blackboard eraser is characterized in that sleeves (3) are fixed at both ends of the box (1) and sleeved on a vertical slide rod (4), upper and lower sleeves (5 and 5') are respectively disposed at the upper end and the lower end of the vertical slide rod (4) and respectively sleeved on upper and lower transverse slide rods (13 and 13'), fixing columns (10) are arranged at ends of both the upper and lower transverse slide rods (13 and 13'), and the middle of a front wall of the box (1) is connected to a handle (7) via a rotating shaft (6). The bidirectional self-erasing absorbing type wide blackboard eraser not only can erase a blackboard, but also can automatically absorb dust in the process of erasing the blackboard, is simple in structure, saves time, labor and energy, and can be used by runty teachers and students conveniently. The width of the blackboard eraser is 1/3 to 1/2 of that of the blackboard, and accordingly the blackboard eraser can erase the blackboard fast and can be widely used for teaching.

Description

Two-way from wiping suction formula wide cut blackboard eraser

Technical field

The utility model relates to a kind of improvement of blackboard eraser, and specifically a kind of can the wiping back and forth can all can suck dust again automatically in the process that erases the board back and forth, and simple in structure, time saving and energy saving, the energy-conservation two-way suction formula wide cut blackboard eraser of wiping certainly.

Background technology

In school instruction, employed blackboard eraser when erasing the board is not enough 20cm, wide for square hand-held plate body, bristle and the shirt rim of not enough 10cm constitutes by length at present, plate body is handed in bristle dense planting in a row, that become row in rectangle bottom surface, shirt rim on the bottom periphery of the hand-held plate body of rectangle is fixing, the shirt rim is enclosed in a week of bristle, and the shirt rim is done for the rubber leather, when erasing the board, arrest the hand-held plate body of rectangle with hand, bristle is pressed on the blackboard, wipes back and forth and move, chalk mark dust is wiped down.The deficiency of this blackboard eraser: the one, the dust under wiping is scattered, flies upward, and pollutes classroom environment, influences teachers and students' health; The 2nd, each area of wiping is little, needs repeatedly to wipe back and forth, wastes time and energy.At present, the blackboard eraser of the use band dust catcher that also has, the blackboard eraser of this band dust catcher, be that the hand-held plate body of rectangle is made box body, in box body, install dust-absorbing fan, on the diapire of the hand-held plate body of rectangle, be provided with and inhale the hole, during use, hand-held box body starts the dust-absorbing fan motor, and bristle is pressed on the blackboard, wipe moving back and forth, chalk mark dust is wiped down, and the dust under wiping sucks in the box body, the blackboard eraser of this band dust catcher, existing deficiency: the one, enough power supplys must be arranged, what have also will connect lead, not only wastes energy, and uses inconvenient; The 2nd, each area of wiping is still less, still needs repeatedly to wipe back and forth, uses both time-consuming, inconvenient again.In addition, more than all blackboard erasers, for the not high teachers and students of stature, the top chalk trace of blackboard often can't be wiped.

Summary of the invention

The purpose of this utility model is to provide a kind of and can wipes back and forth, can in the process that erases the board back and forth, all can suck dust automatically again, and simple in structure, time saving and energy saving, energy-conservation, to also convenient use two-way of teachers and students of short and small stature from wiping suction formula wide cut blackboard eraser.

For reaching above purpose, the technical scheme that the utility model adopted is: this is two-way from wiping suction formula wide cut blackboard eraser, constitute by casing and blackboard eraser, casing is a cuboid, rear wall openings, the two ends of blackboard eraser are fixed on the end wall of casing rear wall openings, it is characterized in that: the two ends of described casing are fixing upper bush all, jacket casing is on vertical slide bar, on vertical slide bar, the lower end is respectively equipped with, lower sleeve, on, lower sleeve is enclosed within respectively, on the following horizontal sliding bar, last, the end of following horizontal sliding bar is equipped with fixed leg, antetheca middle part at casing connects upper handle by turning cylinder, on blackboard eraser, be equipped with jamb duster between the end wall of the casing rear wall openings of downside, inner bottom part is provided with the dust storage bin in the chamber of casing.

The utility model is also implemented by following measure: the length of described casing and blackboard eraser is the 1/3-1/2 of the width of employed blackboard, and the 1/3-1/2 width that promptly erases the board at every turn and can erase the board reaches the purpose that erases the board fast.

Described handle is made of hand-held screw rod and barrel, and hand-held screw rod screws in the barrel, screws in the length of the length joystick in the barrel by hand-held screw rod.

Described jamb duster, constitute by turning cylinder, bristle, rubber tire, upper and lower scraper plate, upper and lower arc, the fixing gluing wheel in the end of turning cylinder, be provided with upper and lower scraper plate in the upper and lower side of casing bottom, on upper and lower scraper plate, be provided with upper and lower arc, on the casing roof, be provided with upper and lower broach.

Described rubber tire is separately fixed at two ends of turning cylinder, and the diameter of rubber tire is than the big 1-2cm of diameter of turning cylinder, and the extension elongation of bristle exceeds 0.5-1cm than the outer of rubber tire, is provided with anti-skidding line on the peripheral wall of rubber tire.

The bottom surface of described upper and lower scraper plate is equipped with one deck sponge, also can be layer of non-woven fabric, and in the cleaning dust, face can erase the board; On the lower wall of casing, be provided with dust and pour out lid.

The beneficial effects of the utility model are: this is two-way from wiping suction formula wide cut blackboard eraser, can wipe back and forth, can in the process that erases the board back and forth, all can suck dust automatically again, and simple in structure, time saving and energy saving, energy-conservation, use teachers and students of short and small stature are also convenient.Because the width of blackboard eraser is that the 1/3-1/2 of blackboard is wide, so the 1/3-1/2 width that can erase the board when erasing the board can be wiped complete blackboard 2-3 time at every turn, so, can erase the board fast.

Description of drawings

Fig. 1, be structure front-view schematic diagram of the present utility model.

Fig. 2, be structure schematic rear view of the present utility model.

Fig. 3, analyse and observe enlarged diagram along Fig. 2 A-A section for body structure of the present utility model.

The specific embodiment

Make the utility model with reference to Fig. 1,2,3.This is two-way from wiping suction formula wide cut blackboard eraser, constitute by casing 1 and blackboard eraser 2, casing 1 is a cuboid, rear wall openings, the two ends of blackboard eraser 2 are fixed on the end wall of casing 1 rear wall openings, it is characterized in that: the two ends of described casing 1 are fixing upper bush 3 all, sleeve 3 is enclosed within on the vertical slide bar 4, on vertical slide bar 4, the lower end is respectively equipped with, lower sleeve 5,5 ', on, lower sleeve 5,5 ' be enclosed within respectively, following horizontal sliding bar 13,13 ' on, last, following horizontal sliding bar 13,13 ' the end be equipped with fixed leg 10, to go up by corresponding fixed leg 10, following horizontal sliding bar 13,13 ' be fixed on four bights of blackboard frame, antetheca middle part at casing 1 connects upper handle 7 by turning cylinder 6, on hand-held handle 7, the following promotion, blackboard eraser 2 on the casing 1 can be done along vertical slide bar 4, the following wiping moved, thereby erase the board, by last, lower sleeve 5,5 ' a left side, the right slip, can adjust the position that erases the board, on blackboard eraser 2, be equipped with jamb duster 8 between the end wall of casing 1 rear wall openings of downside, inner bottom part is provided with dust storage bin 9 in the chamber of casing 1, when blackboard eraser 2 erased the board, the chalk dust under jamb duster 8 will be wiped swept in the dust storage bin 9.

As further improvement of the utility model, the length of described casing 1 and blackboard eraser 2 is the 1/3-1/2 of the width of employed blackboard, and the 1/3-1/2 width that promptly erases the board at every turn and can erase the board reaches the purpose that erases the board fast.

Described handle 7 is made of hand-held screw rod 71 and barrel 72, and hand-held screw rod 71 screws in the barrels 72, screws in the length of the length joystick 7 in the barrels 72 by hand-held screw rod 71, thereby can make the student of differing heights or teacher all can wipe top to blackboard.

Described jamb duster 8, by turning cylinder 81, bristle 82, rubber tire 83, on, lower scraping plate 84,84 ', on, arc lower plate 85,85 ' constitute, the fixing gluing wheel 83 in the end of turning cylinder 81, on casing 1, the lower side bottom is provided with, lower scraping plate 84,84 ', last, lower scraping plate 84,84 ' be provided with, arc lower plate 85,85 ', on casing 1 roof, be provided with, following broach 86,86 ', when casing 1 when blackboard surface upwards slides, then blackboard eraser 2 upwards erases the board, rubber tire 83 touches blackboard surface, and the bristle 82 on the turning cylinder 81 also touches blackboard surface simultaneously, under the effect of frictional force, rubber tire 83 rotates, just blackboard eraser 2 wipe dust down sweep lower scraping plate 84 ' on, and along arc lower plate 85 ' inwardly sweep, descend broach 86 ' effect under, chalk dust enters in the dust storage bin 9, meanwhile, a jamb duster 8 of upside also inwardly rotates, but when upwards wiping, dust makes progress seldom, so only help out; In like manner, when casing 1 along blackboard surface during to lower slider, then blackboard eraser 2 erases the board downwards, the rubber tire 83 of upper and lower side touches blackboard surface, rotates from bottom to top, the chalk dust under wiping also sweeps in the dust storage bin 9.

Described rubber tire 83 is separately fixed at two ends of turning cylinder 81, the diameter of rubber tire 83 is than the big 1-2cm of diameter of turning cylinder 81, the extension elongation of bristle 82 exceeds 0.5-1cm than the outer of rubber tire 83, is provided with anti-skidding line 87 on the peripheral wall of rubber tire 83, with the frictional force of increase with blackboard surface.

Described upper and lower scraper plate 84,84 ' the bottom surface be equipped with one deck sponge 11, also can be layer of non-woven fabric, the cleaning dust in, face can erase the board; Being provided with dust on the lower wall of casing 1 pours out and covers 12.

Claims

One kind two-way from wiping suction formula wide cut blackboard eraser, constitute by casing (1) and blackboard eraser (2), casing (1) is a cuboid, rear wall openings, the two ends of blackboard eraser (2) are fixed on the end wall of casing (1) rear wall openings, it is characterized in that: the two ends of described casing (1) are fixing upper bush (3) all, sleeve (3) is enclosed within on the vertical slide bar (4), on vertical slide bar (4), the lower end is respectively equipped with, lower sleeve (5,5 '), on, lower sleeve (5,5 ') be enclosed within respectively, following horizontal sliding bar (13,13 ') on, last, following horizontal sliding bar (13,13 ') the end be equipped with fixed leg (10), connect upper handle (7) at the antetheca of casing (1) middle part by turning cylinder (6).
2. according to claim 1 two-way from wiping suction formula wide cut blackboard eraser, it is characterized in that the length of described casing (1) and blackboard eraser (2) is the 1/3-1/2 of the width of employed blackboard.
3. according to claim 1 two-way from wiping suction formula wide cut blackboard eraser, it is characterized in that described handle (7), constitute by hand-held screw rod (71) and barrel (72), hand in screw rod (71) the screw-in barrel (72).
4. according to claim 1 two-way from wiping suction formula wide cut blackboard eraser, it is characterized in that described jamb duster (8), constitute by turning cylinder (81), bristle (82), rubber tire (83), upper and lower scraper plate (84,84 '), upper and lower arc (85,85 '), the fixing gluing wheel (83) in the end of turning cylinder (81), be provided with upper and lower scraper plate (84,84 ') in the upper and lower side of casing (1) bottom, on upper and lower scraper plate (84,84 '), be provided with upper and lower arc (85,85 '), on casing (1) roof, be provided with upper and lower broach (86,86 ').