CN2428308Y - Dust-free black-board eraser - Google Patents

Dust-free black-board eraser Download PDF

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Publication number
CN2428308Y
CN2428308Y CN 00233698 CN00233698U CN2428308Y CN 2428308 Y CN2428308 Y CN 2428308Y CN 00233698 CN00233698 CN 00233698 CN 00233698 U CN00233698 U CN 00233698U CN 2428308 Y CN2428308 Y CN 2428308Y
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CN
China
Prior art keywords
utility
dust
model
backboard
writing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 00233698
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Chinese (zh)
Inventor
刘超
Original Assignee
刘超
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 刘超 filed Critical 刘超
Priority to CN 00233698 priority Critical patent/CN2428308Y/en
Application granted granted Critical
Publication of CN2428308Y publication Critical patent/CN2428308Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a dust-free blackboard eraser. The utility model belongs to the technical field of the subgroup of cleaning devices of blackboards provided with devices for sucking chalk dust or stone boards of the group of cleaning devices of blackboards or stone boards of the subclass of articles for writing or drawing; auxiliary articles for writing or drawing of the class of apparatuses for writing or drawing; office articles under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC). The number of the utility model is B43L21/02. The utility model is composed of a back board, a handle, a wool felt and a chalk dust box. The utility model is characterized in that the cuboid wool felt is arranged on the rectangular back board. The dust-free blackboard eraser of the utility model has high practicability.

Description

Dust-free black board eraser
The utility model relates to dust-free black board eraser.(IPC) belongs to operation Department of Transportation by International Patent Classification (IPC), and printing branch is write or drawing appliance, and the big class of office appliance is write or drawing article; The assistant product group of writing or draw, big group of the cleaning device of blackboard or slabstone has the blackboard of sucking chalk powder device or the cleaning device technical group field of slabstone.Be numbered B43L 21/02.
At present, big group of the existing and cleaning device about blackboard or slabstone that once had has the technology of the cleaning device of the blackboard of sucking chalk powder device or slabstone that the demand of dust-free black board eraser was all done very fruitful effort, also once designs many outstanding technical schemes.As declaring of the Decree of Patent Office of China in 1996 by Gao Enji, Granted publication number is CN2235906Y, China Patent No. (ZL) is: No. 95230897.5 utility model title is the utility model patent of " electric dust absorption blackboard eraser ", the technical scheme that is adopted.Big group of the cleaning device of blackboard or slabstone, it is a routine of great value invention that the blackboard of sucking chalk powder device or the cleaning device technical elements of slabstone are arranged, and it has solved the problem of blackboard eraser electric dust absorption effectively.But still have some deficits the too big problem of dust when the common chalkboard eraser of its also very difficult solution uses.
The purpose of this utility model is to provide a kind of dust-free black board eraser.The too big problem of dust when using to solve common chalkboard eraser.
The purpose of this utility model is achieved in that this utility model dust-free black board eraser.Mainly constitute by backboard, handle, felt, dust box.Its major part felt is by selecting for use on the market.Its backboard is a rectangular shape, makes material with plank, through carpenter's processing and manufacturing.Its handle is the curved bar shape, makes material with plank, through carpenter's processing and manufacturing.Its dust box is a prism shape, makes material with timber, through carpenter's processing and manufacturing.The handle of its curved bar shape adopts adhering method to be installed on the backboard of rectangular shape.Form the grip structure of a curved bar shape.The felt of its rectangular shape adopts adhering method to be installed on the backboard of rectangular shape.Form the erasing structure of a rectangular shape.The dust box of its prism shape adopts adhering method to be installed on the backboard of rectangular shape.Form the collection structure of a prism shape.Its backboard by bonding effect in felt.Thereby make felt satisfy the requirement of wiping letter written with chalk.Its backboard by bonding effect in the dust box.Thereby make the dust box finish the task of collecting dust.So just realized the purpose of this utility model.
Big group of the cleaning device of the utility model and original blackboard or slabstone has the blackboard of sucking chalk powder device or the cleaning device technology of slabstone to compare three advantages and improvement;
The first, because the utility model has designed felt in technical scheme, so solved the problem that can wipe letter written with chalk;
The second, because the utility model has designed handle in technical scheme, so solved problem easy to use;
The 3rd, because the utility model has designed the dust box in technical scheme, so solved the problem that can collect dust.Thereby the too big problem of dust in the time of just more effectively having solved common chalkboard eraser and use.
Accompanying drawing provides structural representation of the present utility model:
Fig. 1 is the Facad structure schematic diagram of the utility model dust-free black board eraser;
Fig. 2 is the side structure schematic diagram of the utility model dust-free black board eraser;
The numbering of parts explanation in the schematic diagram: 1 backboard, 2 handles, 3 felts, 4 dust boxes
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in the figure, the utility model dust-free black board eraser.Mainly constitute by backboard 1, handle 2, felt 3, dust box 4.Its major part felt 3 is by selecting for use on the market.Its backboard 1 is a rectangular shape, makes material with plank, through carpenter's processing and manufacturing.Its handle 2 is curved bar shapes, makes material with plank, through carpenter's processing and manufacturing.Its dust box 4 is prism shapes, makes material with timber, through carpenter's processing and manufacturing.The handle 2 of its curved bar shape adopts adhering method to be installed on the backboard 1 of rectangular shape.Form the grip structure of a curved bar shape.The felt 3 of its rectangular shape adopts adhering method to be installed on the backboard 1 of rectangular shape.Form the erasing structure of a rectangular shape.The dust box 4 of its prism shape adopts adhering method to be installed on the backboard 1 of rectangular shape.Form the collection structure of a prism shape.Its backboard 1 by bonding effect in felt 3.Thereby make felt 3 satisfy the requirement of wiping letter written with chalk.Its backboard 1 by bonding effect in dust box 4.Thereby make dust box 4 finish the task of collecting dust.So just realized the purpose of this utility model.Thereby the too big problem of dust in the time of just having solved common chalkboard eraser and use.
Below by embodiment, the utility model is done more detailed description:
Embodiment 1, in force, if use this novel chalk to wipe, can grasp the handle of installing on the backboard 12, grasps because the handle 2 of curved bar shape is convenient to the people, therefore can allow the user feel more comfortable, is easier to use.
Embodiment 2, and in force, if during blackboard wiping, dust falls along the space between blackboard and the blackboard eraser, will directly fall into dust box 4 and collect, and can not descend slowly and lightly contaminated environment everywhere.Thereby just can realize the purpose of this utility model.
Realize that preferred plan of the present utility model is is material with the plank, utilize the basic equipment of blackboard eraser factory, take bonding, carpenter to produce by batch, the demand with supply student circle so just can realize practical value of the present utility model and economic worth better.

Claims (2)

1. dust-free black board eraser, it is to be made of backboard (1), handle (2), felt (3), dust box (4), the handle (2) of its curved bar shape is installed on the backboard (1) of rectangular shape, it is characterized in that the felt (3) of its rectangular shape is installed on the backboard (1) of rectangular shape.
2. dust-free black board eraser according to claim 1 is characterized in that the dust box (4) of its prism shape is installed on the backboard (1) of rectangular shape.
CN 00233698 2000-05-18 2000-05-18 Dust-free black-board eraser Expired - Fee Related CN2428308Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00233698 CN2428308Y (en) 2000-05-18 2000-05-18 Dust-free black-board eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00233698 CN2428308Y (en) 2000-05-18 2000-05-18 Dust-free black-board eraser

Publications (1)

Publication Number Publication Date
CN2428308Y true CN2428308Y (en) 2001-05-02

Family

ID=33595984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00233698 Expired - Fee Related CN2428308Y (en) 2000-05-18 2000-05-18 Dust-free black-board eraser

Country Status (1)

Country Link
CN (1) CN2428308Y (en)

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee