CN203567426U

CN203567426U - Blackboard eraser allowing dust to be removed

Info

Publication number: CN203567426U
Application number: CN201320657725.9U
Authority: CN
Inventors: 杨勇; 文闻; 李晔; 邓伟林; 张艳秋
Original assignee: Chengdu Univeristy of Technology
Current assignee: Chengdu Univeristy of Technology
Priority date: 2013-10-24
Filing date: 2013-10-24
Publication date: 2014-04-30
Anticipated expiration: 2023-10-24

Abstract

The utility model discloses a blackboard eraser allowing dust to be removed. The blackboard eraser allowing the dust to be removed comprises a shell, a wiping band, rotary drums, rotary shafts, a supporting plate, a dust brush, a rear cover and connecting pieces. The shell is a cavity, the cavity is provided with an opening, the rear cover is arranged on the opposite face of the opening, and the rear cover is connected to the cavity through the connecting pieces and covers the shell. The pair of the rotating shafts are connected to the shell in parallel, the rotary drums are arranged on the rotary shafts respectively in a sleeved mode, the wiping band is a closed flexible band and is connected to the two rotary drums in a sleeved mode, and a straight section of one side of the wiping band after the sleeved connection stretches out of the opening of the shell and is used for wiping a blackboard. The supporting plate is arranged between the two rotary drums, the two ends of the supporting plate are fixedly connected to the shell, and the supporting plate is used for supporting the straight section, stretching out of the opening of the shell, of the wiping band. A brush body of the dust brush is fixed to the rear cover, and bristles of the accumulated brush make contact with the straight section of the other side of the wiping band. The blackboard eraser moves transversely to wipe the blackboard, moves up and down to remove dust, is convenient and practical and greatly relieves flowing dust pollution.

Description

Can remove eraser with dust collector

Technical field

The utility model relates to a kind of teaching aid, specifically a kind of blackboard eraser that can conveniently remove wiper laying dust.

Background technology

Blackboard eraser is the indispensable instrument of teaching, but blackboard eraser can amass the very thick chalk dust of last layer on its felt-cloth after use a period of time, usually will look for a place to knock other object in the time of continuing to use, and shakes off laying dust.This occupation mode is very inconvenient, also easily causes dust pollution.Although also have the blackboard eraser design that much alleviates dust pollution, as Chinese patent literature, publication number is CN103213437A, CN102950943A, their most of designs, all for brushing airborne dust, are not also removed the design of wiper laying dust.Chinese patent literature, publication number is the patent of CN101746194A, disclose a kind of by constantly changed the design of wiper by two rotating shaft cores, advantage is laying dust can be involved in to insert box to reduce chalk dust and fly upward, but weak point is the laying dust that this invention can not be removed wiper in time, need constantly to change wiper.

Summary of the invention

The purpose of this utility model is: for above problem, provide a kind of blackboard eraser that can conveniently remove laying dust.

The technical solution of the utility model is: a kind of eraser with dust collector that removes, comprise housing, and wipe band, rotating cylinder, rotating shaft, fagging, laying dust brush, bonnet, connector.Described housing is a cavity, and cavity has an opening, on the opposite of opening, has a bonnet, and bonnet is connected on cavity by described connector, covers housing.Have a pair of shaft parallel to be connected on described housing, described rotating cylinder is enclosed within respectively in this rotating shaft, and described wiping band is a closed soft band, is socketed on described two rotating cylinders, wipes the opening that stretches out housing with the flat segments of a side, for brushing blackboard after socket.Between two rotating cylinders, be provided with a fagging, fagging two ends are fixedly connected on housing, for supporting the wiping band flat segments of stretching out shell nozzle.The brush body of described laying dust brush is fixed on bonnet, and laying dust brush bristle is with the flat segments contact of wiping with opposite side.

The beneficial effects of the utility model are: transverse movement erasing blackboard, move up and down except laying dust, and convenient and practical, greatly alleviate dust pollution.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is that Fig. 1 is along A-A direction cutaway view.

Fig. 3 is that Fig. 2 is along B-B direction cutaway view.

In Fig. 1, Fig. 2, Fig. 3: 1. housing, 1a. opening, 2. wipes band, and 2a. wipes and is with a side flat segments, and 2b. wipes band opposite side flat segments, 3. rotating cylinder, 4. rotating shaft, 5. fagging, 6. laying dust brush, 6a. bristle, 6b. brush body, 7. bonnet, 8. connector.

Below in conjunction with drawings and Examples, the utility model is further illustrated.

The specific embodiment

Housing 1 is a cavity, and cavity has an opening, has a bonnet 7 on the opposite of opening, and bonnet 7 is connected on cavity by connector 8, covers housing 1.Have that a countershaft 4 is parallel to be connected on housing 1, in rotating shaft 4, cover has rotating cylinder 3 respectively, wipes and is with 2 to be a closed felt band, is socketed on two rotating cylinders 3, wipes the opening 1a that stretches out housing 1 with the flat segments 2a of 2 one sides, for brushing blackboard after socket.Between two rotating cylinders 3, be provided with a fagging 5, fagging 5 two ends are fixedly connected on housing 1, for supporting the flat segments 2a wiping with 2 one sides.Laying dust brush 6 is comprised of brush body 6b and bristle 6a, and brush body 6b is fixedly connected on bonnet, and bristle 6a is with the flat segments 2b contact of wiping with 2 opposite sides.

The course of work of the present utility model: during brushing blackboard, blackboard eraser is vertically held, brushing process is transverse movement, wipes and to be subject to the axially identical of force direction and rotating cylinder 3 with 2, therefore wipes and is with 2 can, around 3 rotations of two rotating cylinders, not affect brushing.When wiping is with 2 laying dusts to thicken, blackboard eraser moves up and down, now, wiping is subject to force direction identical with the circumferencial direction of rotating cylinder 3 with 2, makes to wipe to be with 2 around two rotating cylinders 3, to rotate, and in wiping, is with in 2 rotation processes, laying dust is brought in housing 1, by laying dust brush 6, brushed off, fall in blackboard eraser cavity.When the laying dust that brush falls in cavity increases, can open connector 8, take off bonnet 7, pour out laying dust and clear up laying dust brush 6.Operating process is easy, and owing to being to brush laying dust in housing, has greatly alleviated dust pollution.

Claims

1. one kind can be removed eraser with dust collector, comprise housing (1), wipe band (2), rotating cylinder (3), rotating shaft (4), laying dust brush (6), bonnet (7), connector (8), it is characterized in that: described housing (1) is a cavity, cavity has an opening, there is a bonnet (7) on the opposite of opening, bonnet (7) is connected on cavity by described connector (8), cover housing (1), have that a countershaft (4) is parallel to be connected on described housing (1), described rotating cylinder (3) is enclosed within respectively in this rotating shaft (4), described wiping band (2) is a closed soft band, be socketed on described two rotating cylinders (3), after socket, wipe the flat segments of band (2) one sides and stretch out the opening of housing (1), for brushing blackboard, the brush body of described laying dust brush (6) is fixed on bonnet (7), laying dust brush (6) bristle is with the flat segments contact of wiping band (2) opposite side.

2. according to claim 1 a kind of except eraser with dust collector, it is characterized in that: between described two rotating cylinders (3), be provided with a fagging (5), it is upper that fagging (5) two ends are fixedly connected on housing (1), for supporting the wiping band flat segments (2a) of stretching out housing (1) opening.

3. according to claim 1 a kind of except eraser with dust collector, it is characterized in that: described wiping band (2) is a closed felt band.