CN2848595Y

CN2848595Y - Multifunction blackboard eraser

Info

Publication number: CN2848595Y
Application number: CN 200520094167
Authority: CN
Inventors: 吕鹏程
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-07
Filing date: 2005-12-07
Publication date: 2006-12-20
Anticipated expiration: 2015-12-07

Abstract

The utility model relates to a multifunction blackboard eraser. A cleaning brush is arranged on the back face of a wood board, the wood board is connected with a handle hinge and the back face of the wood board is provided with a jack and a pin. When the utility model is used, for students high in stature, the blackboard eraser is normally used for erasing a blackboard; for students short in stature, the hinge is opened to increase the length of the wood board and the pin is inserted in the jack and is fixed to prevent a handle from being leftwards and rightwards moved. Student can also use the cleaning brush of the back face of the wood board for cleaning a groove at the bottom of the blackboard to increase the function of the blackboard eraser. The utility model has the advantages of simple structure, convenience, practicability, economy, portability, etc. The length of the blackboard eraser is increased, and the functionality of the blackboard eraser is improved.

Description

Multifunctional blackboard eraser

Technical field the utility model relates to a kind of educational aid, especially a kind of multifunctional blackboard eraser that not only can fold but also can clean dust in the blackboard groove.

Technical background is present, and in most of schools, students is still used common blackboard eraser blackboard wiping.But this class blackboard eraser has very big limitation to being suitable for the crowd, and for example for student of short and small stature, they just can't carry out effective wiping to blackboard top, and blackboard eraser that can be present can't solve this class problem; And present blackboard eraser function is also comparatively single, can only clean the letter written with chalk on blackboard surface, but can not clear up the dust that drops in the blackboard groove.

The summary of the invention the purpose of this utility model provides a kind of multifunctional blackboard eraser, is used to solve the problem that ordinary blackboard eraser can't be provided convenience for student of short and small stature and can not be cleaned accumulation dust in the blackboard groove.

For achieving the above object, the utility model multifunctional blackboard eraser comprises a rectangle plank and the cleaning bristle that is installed in the plank front surface, at the back side of plank cleaning brush is installed; Plank is connected by folding with handle; Jack and latch are installed at the plank back side.

After adopting said structure, tall person's student can normally use blackboard eraser; When the little chap classmate uses, can connect by folding and open handle, latch is inserted in the jack fixes then, can increase the length of blackboard eraser like this, be fit to short student and use; The cleaning brush at the blackboard eraser back side can also be cleared up the groove of blackboard bottom.

The utility model has the advantages that: simple in structure, convenient and practical, economical and practical, easy to carry, can also increase blackboard eraser length, and it is functional to have improved blackboard eraser.

Description of drawings Fig. 1 is the overall structure schematic diagram of the utility model multifunctional blackboard eraser.

The specific embodiment as shown in Figure 1, the utility model multifunctional blackboard eraser comprises a rectangle plank 1 and is installed in the cleaning bristle of plank 1 front surface, at the back side of plank 1 cleaning brush 2 is installed; Plank 1 is connected by folding 4 with handle 3; Jack 5 and latch 6 are installed at plank 1 back side.Wherein, use screw and folding 4 that plank 1 and handle 3 are linked together, use screw fixed jack 5 respectively in the same side of plank 1 and handle 3, and the perpendicular bisector of two jacks 5 is positioned on the straight line, latch 6 can assign into performance fixations in two jacks 5; Paste one cleaning brush 2 at plank 1 back side.When using,, can normally use the bristle blackboard wiping in blackboard eraser front for user of imposing stature; For user of short and small stature, can open the handle 3 of plank 1 by folding 3, increase the length of plank 1, latch 6 is assigned in the jack 5 fix then, prevent that handle about 3 is movable, take off latch 6 after the use again, be convenient to place and carry; The user can also use the groove of 2 pairs of blackboard bottoms of cleaning brush at plank 1 back side to clear up, and increases the function of blackboard eraser, makes it be more suitable for the student and uses.

Claims

1, a kind of multifunctional blackboard eraser comprises a rectangle plank (1) and is installed in the cleaning bristle of plank (1) front surface, it is characterized in that: cleaning brush (2) is installed at the back side at plank (1); Plank (1) is connected by folding (4) with handle (3); Jack (5) and latch (6) are installed at plank (1) back side.