CN203032227U

CN203032227U - Simple blackboard eraser

Info

Publication number: CN203032227U
Application number: CN 201320016444
Authority: CN
Inventors: 陈梅; 江志翔; 方进; 陈杰; 王月梅; 张雯; 笪建怿
Original assignee: Shanghai Dianji University
Current assignee: Shanghai Dianji University
Priority date: 2013-01-11
Filing date: 2013-01-11
Publication date: 2013-07-03
Anticipated expiration: 2023-01-11

Abstract

The utility model provides a simple blackboard eraser which comprises a main body frame, a hair brush and a rotating shaft. The rotating shaft is fixed on the main body frame, the hair brush can rotate around the rotating shaft, and an elastic device is respectively arranged on the rotating shaft located on two sides of the hair brush. The simple blackboard eraser is simple in structure, convenient to disassemble and convenient to clean, satisfies human engineering and has good popularization and use value.

Description

Simple blackboard eraser

Technical field

The utility model relates to mechanical manufacturing field, particularly a kind of simple blackboard eraser.

Background technology

The same time of most of blackboard eraser of selling on the present stage market frequently uses, and the dust wind-engaging under the brush dispels, and a large amount of dust of irresistible generation are dispersed into the space, and the interior space is caused severe contamination.

The long-term dust that sucks is very unfavorable to student and teacher's physical and mental health, dust from flying is very unhygienic simultaneously, though but the blackboard eraser of many dust suctions is also arranged on the market, a kind of ash-collecting blackboard eraser that provides as Chinese patent 98226023.7, be connected by one section hose between dust catcher and the blackboard eraser, though reach certain effect, but on the large tracts of land blackboard, various piece to move use for blackboard eraser, the hose of single length is to using, depositing makes troubles, while self structure complexity, the cost height, and easily stop up flexible pipe, other easy blackboard eraser then can't reach the effect of environmental protection well.

The utility model content

In order to overcome at least one problem that exists in the prior art, for example wiping blackboard structure of the prior art is too complicated, and manufacture difficulty is big, and the high problem of cost, the utility model proposes a kind of blackboard eraser simple in structure, with low cost.

To achieve these goals, the utility model proposes a kind of simple blackboard eraser, comprising: main body frame, hairbrush and rotating shaft, described rotating shaft are fixed on the described main body frame, described hairbrush can be around described rotating shaft rotation, in described rotating shaft and the both sides that lay respectively at described hairbrush be provided with elastic device.

Optionally, described rotating shaft is fixedly set on the described main body frame.

Optionally, described elastic device is spring.

Optionally, between described elastic device and described hairbrush, be provided with pad.

Optionally, described hairbrush is the cylinder of hollow, and described rotating shaft is described cylindrical rotating shaft.

The beneficial effect of the utility model simple blackboard eraser mainly shows: the utility model simple blackboard eraser is simple in structure, convenient disassembly, be convenient to clean, and meets ergonomics, has promotion and use value preferably.

Description of drawings

Fig. 1 is the structural representation of the utility model simple blackboard eraser.

Fig. 2 and Fig. 3 are the broken away view of the utility model simple blackboard eraser.

Fig. 4 is the side view of the utility model simple blackboard eraser.

The specific embodiment

The utility model will be further described to accompanying drawing 4 below in conjunction with embodiment and accompanying drawing 1.

The utility model proposes a kind of simple blackboard eraser, comprise: main body frame 1, hairbrush 2 and rotating shaft 5, described rotating shaft 5 is fixed on the described main body frame 1, described rotating shaft 5 is fixedly set on the described main body frame 1, described hairbrush 2 can be around described rotating shaft 5 rotations, described hairbrush 2 is the cylinder of hollow, be the rolling hairbrush, described rotating shaft 5 is described cylindrical rotating shaft, pass the hole 6 of the centre of hairbrush 2, in described rotating shaft 5 and the both sides that lay respectively at described hairbrush 2 be provided with elastic device 3, described elastic device 3 is spring, deformation takes place in the spring 3 that is positioned at hairbrush 2 two ends when installing or removing hairbrush 2, form enough spaces for the hairbrush 2 that installs or removes, after installation, under the effect of the spring 3 at two ends, hairbrush 2 is fixed on the centre of rotating shaft 5 substantially.Be provided with pad 4 between described elastic device 3 and described hairbrush 2, the effect of pad 4 is to prevent that spring 3 from destroying hairbrush 2.

More detailed process is: rolling hairbrush 2 is to be enclosed within the rotating shaft 5, fixing by spring 3, when needs use, available rolling hairbrush 2 packs into rotating shaft 5 on one side earlier, withstands spring shim 4 then, compression spring 3, pack into another side, like this under the effect of spring 3, in the centre, rolling hairbrush 2 can pivot when erasing the board with regard to basic fixed for rolling hairbrush 2.When being dust entirely on the rolling hairbrush 2, rolling hairbrush 2 can be taken off cleaning.

The present invention has overcome the deficiencies in the prior art, and a kind of blackboard eraser of efficient absorption dust is provided.Overcome existing wiping blackboard structure complexity, dismounting difficulty, cleaned inconvenient shortcoming, and the present invention has only five basic parts to form, therefore simple in structure clear, easy accessibility, so it is more convenient to clean, while is easy to operate, cost is low, efficient is high, has good value for applications.

Though the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Have in the technical field under the utility model and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is as the criterion when looking claims person of defining.

Claims

1. simple blackboard eraser, comprising: main body frame, hairbrush and rotating shaft, described rotating shaft are fixed on the described main body frame, described hairbrush can is characterized in that around described rotating shaft rotation, in described rotating shaft and the both sides that lay respectively at described hairbrush be provided with elastic device.

2. simple blackboard eraser according to claim 1, it is characterized in that: described rotating shaft is fixedly set on the described main body frame.

3. simple blackboard eraser according to claim 1, it is characterized in that: described elastic device is spring.

4. according to claim 1 or 3 described simple blackboard erasers, it is characterized in that: between described elastic device and described hairbrush, be provided with pad.

5. simple blackboard eraser according to claim 1, it is characterized in that: described hairbrush is the cylinder of hollow, described rotating shaft is described cylindrical rotating shaft.