CN2523616Y - Blackboard erasers - Google Patents

Abstract

The utility model relates to a novel blackboard eraser, which comprises an ash inputting groove, an eraser body, an outer shell plate and an extensive bar. Because the utility model designs the extensive bar in the technical proposal, the utility model which can be elongated or curtailed with strong suitability; because an ash inputting port is designed in the technical proposal, the utility model is environment-protective and clean; the utility model is characterized in that a notch of the ash inputting groove is arranged at the upper part of the eraser body. The utility model is a novel blackboard with high practical value.

Description

A kind of novel blackboard eraser

(1) technical field:

The utility model relates to a kind of novel blackboard eraser.Belong to operation Department of Transportation by International Patent Classification (IPC) (IPC) division, printing branch is write or drawing appliance; The big class of office appliance is write or drawing article; The assistant product group of writing or draw, the cleaning device technical group field of blackboard or slabstone.

(2) background technology:

At present, the technology about the cleaning device of blackboard or slabstone existing and that once had was all done very fruitful effort to the demand of novel blackboard eraser, also once designed many outstanding technical schemes.As being declared by Wang Weidong of the Decree of Patent Office of China in 1996, Granted publication number is CN2229359Y, and China Patent No. (ZL) is: No. 95239745.5 utility model title is the utility model patent of " omnipotent erasing rubber ", the technical scheme that is adopted.Cleaning device technical elements at blackboard or slabstone is a routine of great value invention, and it has solved the problem of rubber Universal wiper word effectively.But still have some deficits, its also be difficult to solve blackboard eminence wipe less than, easily fall the problem of ash.

(3) summary of the invention:

The purpose of this utility model is to provide a kind of novel blackboard eraser.With solve the blackboard eminence wipe less than, easily fall the problem of ash.

The purpose of this utility model is achieved in that a kind of novel blackboard eraser of this utility model.Mainly constitute by advancing ash-pit, wiping board body, Shell Plate, expansion link.Its ash-pit that advances is the rectangular channel shape, uses wooden material, through the planing operation manufacturing.Its wiping board body is a rectangular shape, uses cloth material, through making processing and manufacturing.Its Shell Plate plate is a rectangular shape, uses wooden material, through the planing operation manufacturing.Its expansion link is the stock shape, uses the steel material, through forging processing and manufacturing.The wiping board body adopts embedding grammar to be installed in the anterior locations of Shell Plate, constitutes the rectangular shape overall structure, and function has been to wipe the chalk dust effect.Advance ash-pit and adopt grooving method to be installed in the upper position of wiping board body, constitute the slotted shape overall structure, function has been to catch the dust effect.Expansion link adopts the screw method to be connected the back location of Shell Plate, constitutes T-shaped shape supporting construction, and function has been a telescopic action.So just realized the purpose of this utility model.

The advantage of utility model: the utility model has been compared an advantage and improvement with the original blackboard or the cleaning device technology of slabstone;

The first, because the utility model designed expansion link in technical scheme, to shorten adaptability strong so can extend;

The second, because the utility model designed ash inlet in technical scheme, so environmental protection, cleaning; Thereby just can more effectively solve the blackboard eminence wipe less than, easily fall the problem of ash.

(4) description of drawings:

Accompanying drawing provides structural representation of the present utility model:

Fig. 1 is the overall structure schematic diagram of a kind of novel blackboard eraser of the present utility model;

The numbering of parts explanation in the schematic diagram: 1 advances ash-pit 2 wiping board bodies 3 Shell Plates 4 expansion links

(5) specific embodiment:

In the optimum implementation of a kind of novel blackboard eraser of the present utility model, its technical scheme is achieved in that and below in conjunction with accompanying drawing the utility model is described further:

Its static structure: see also Fig. 1: as shown in the figure, a kind of novel blackboard eraser of the present utility model.Mainly constitute by advancing ash-pit 1, wiping board body 2, Shell Plate 3, expansion link 4.Wiping board body 2 adopts embedding grammar to be installed in the anterior locations of Shell Plate 3, constitutes the rectangular shape overall structure, and function has been that a crocus masterpiece is used.Advance ash-pit 1 and adopt grooving method to be installed in the upper position of wiping board body 2, constitute the slotted shape overall structure, function has been to catch the dust effect.Expansion link 4 adopts the screw method to be connected the back location of Shell Plate 3, constitutes T-shaped shape supporting construction, and function has been a telescopic action.

Its dynamic structure: in force:

According to mechanism principle, its wiping board body 2 acts on Shell Plate plate 3 by expansion link 4, thereby finishes the task of flexible wiping board.According to mechanism principle, its ash-pit 1 that advances acts on wiping board body 2 by Shell Plate 3, thereby finishes the task of connecing dust.So just realized the purpose of this utility model.Thereby just can solve the blackboard eminence wipe less than, easily fall the problem of ash.

Below by using method, the utility model is done more detailed description:

A kind of novel blackboard eraser of this utility model is work like this:

In use, when erasing the board, can extend shortening, dust can enter ash-pit.According to mechanism principle, its wiping board body 2 acts on Shell Plate plate 3 by expansion link 4, thereby finishes the task of flexible wiping board.According to mechanism principle, its ash-pit 1 that advances acts on wiping board body 2 by Shell Plate plate 3, thereby finishes the task of connecing dust.

Realize that preferred plan of the present utility model is is material with timber, utilize the basic equipment of blackboard eraser factory, take to produce by batch in batches, the demand with supply educational circles so just can realize practical value of the present utility model and economic worth better.

Claims (2)

1. novel blackboard eraser, it is by advancing ash-pit (1), wiping board body (2), Shell Plate (3), expansion link (4) formation, wiping board body (2) embeds the anterior locations be installed in Shell Plate (3), it is characterized in that ash-pit (1) fluting into is installed in the upper position of wiping board body (2).

2. a kind of novel blackboard eraser according to claim 1 is characterized in that expansion link (4) screw is connected the back location of Shell Plate (3).

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