CN202192918U

CN202192918U - Blackboard eraser with a telescopic handle

Info

Publication number: CN202192918U
Application number: CN2011202606874U
Authority: CN
Inventors: 李正阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-22
Filing date: 2011-07-22
Publication date: 2012-04-18
Anticipated expiration: 2021-07-22

Abstract

The utility model provides a blackboard eraser with a telescopic handle, comprising a plate surface, a fixation handle fixed on a back of the plate surface and a telescopic handle capable of withdrawing and retracting in the fixation handle. The blackboard eraser has the following beneficial effects: the words on the relative high position of the blackboard can be erased by the blackboard eraser with the telescopic handle, so as to provide the convenience to the living of students and reduce the hidden trouble possibility. The blackboard eraser suitable for being popularized in a large area has features of simple structure, easy process and operation.

Description

The handle telescopic blackboard eraser

Technical field

The utility model relates to a kind of blackboard eraser, particularly a kind of handle telescopic blackboard eraser.

Background technology

Blackboard is often than higher, and teacher's height is also generally than higher, so much more as much as possible teacher just last leaning on very much of writing of writing on the blackboard in order to write a little words; But our student is not because also there is zoon; Height is generally all high less than teacher, so the word of top often can't reach when erasing the board, wipe less than; Must remove stool and step on and wipe, certain danger is arranged.

Summary of the invention

In order to address the above problem, the utility model provides a kind of handle telescopic blackboard eraser.

The utility model adopts following scheme to realize: comprise plate face and the fixed handle that is fixed on the plate face back side, also comprise and can in fixed handle, extract out and the stretching handle of indentation.

Further technical scheme: fixed handle is provided with hole clipping, and stretching handle is provided with and matches with hole clipping that to merge the card that is on the same buttocks with hole clipping prominent; Hole clipping is positioned at the lower end of fixed handle, the prominent upper end that is positioned at stretching handle of card.Said stretching handle is provided with two.Fixed handle is provided with hole clipping, and stretching handle is provided with and matches with hole clipping that to merge the card that is on the same buttocks with hole clipping prominent; Hole clipping is positioned at the lower end of fixed handle, the prominent upper end that is positioned at stretching handle of card; It is prominent that stretching handle is provided with a corresponding card, and card is prominent to be positioned on the flexure strip that connects on the stretching handle surface.

[0006]The utility model beneficial effect: the handle telescopic blackboard eraser can be clipped the higher word in position on the blackboard, convenience is provided for student's life, has reduced the possibility that hidden danger takes place.And simple in structure, be easy to processing and operation, be suitable for large tracts of land and promote.

Description of drawings

Accompanying drawing 1 shrinks structural representation afterwards for the utility model.

Accompanying drawing 2 is stretched out structural representation afterwards for the utility model embodiment 2.

Accompanying drawing 3 is the structural representation of the utility model stretching handle.

Among the figure, 1, fixed handle, 2, card is prominent, 3, stretching handle, 4, hole clipping, 5, flexure strip, 6, the plate face.

The specific embodiment

The scalable blackboard eraser of embodiment 1 handle comprises that plate face 6 and the fixed handle 1 that is fixed on plate face 6 back sides and one can extract out and the stretching handle 3 of indentation from fixed handle 1.Stretching handle 3 upper ends are provided with a card and dash forward 2, and card prominent 2 is fixed on stretching handle 3 flexure strips 5.When stretching handle 3 was in the state of stretching, card prominent 2 withstood on the fixed handle in its outside, compressing flexure strip 5 to stretching handle 3 inboards; When taking out stretching handle 3 outward; After running into hole clipping 4, card prominent 2 inserts hole clipping 4, the state when flexure strip recovers not oppressed; At this time the handle of blackboard eraser has just extended, and can clip the very blackboard of high position.When wanting to accept stretching handle 3, as long as on card prominent 2, oppress gently, push away stretching handle 3 to 1 direction toward fixing simultaneously, stretching handle 3 just withdrawal has gone, and the upward low word in position that can erase the board is simple to operation.

The scalable blackboard eraser of embodiment 2 handles comprises that fixed handle 1 and two can extract the stretching handle 3 with indentation out.The lower end of fixed handle 1 is provided with a hole clipping, and stretching handle 3 upper ends all are provided with a card and dash forward 2, and the lower end all is provided with a hole clipping 4, and card prominent 2 and hole clipping 4 are on the same buttocks, and stretching handle 3 upper ends are provided with a card and dash forward 2.Card prominent 2 is fixed on the stretching handle flexure strip 5.When stretching handle 3 was in the state of stretching, card prominent 2 withstood on the fixed handle or stretching handle in its outside, compressing flexure strip 5 to stretching handle 3 inboards; When taking out stretching handle 3 outward, run into hole clipping 4 after, card prominent 2 inserts hole clippings 4; State when flexure strip recovers not oppressed, at this time the handle of blackboard eraser has just extended, and can extract a stretching handle 3 out; Also can all extract two stretching handles 3 out, can clip the very blackboard of high position.When wanting to accept stretching handle 3, as long as on card prominent 2, oppress gently, push away stretching handle 3 to 1 direction toward fixing simultaneously, stretching handle 3 just withdrawal has gone, and the upward low word in position that can erase the board is simple to operation.

Claims

1. handle telescopic blackboard eraser comprises plate face (6) and is fixed on the fixed handle (1) at plate face (6) back side, it is characterized in that: also comprise and can in fixed handle (1), extract out and the stretching handle (3) of indentation.

2. handle telescopic blackboard eraser according to claim 1 is characterized in that: fixed handle (1) is provided with hole clipping (4), and merging that stretching handle (3) is provided with and hole clipping (4) matches is in the card prominent (2) on the same buttocks with hole clipping (4); Hole clipping (4) is positioned at the lower end of fixed handle (1), and card prominent (2) is positioned at the upper end of stretching handle (3).

3. handle telescopic blackboard eraser according to claim 1 is characterized in that: said stretching handle (3) is provided with two.

4. handle telescopic blackboard eraser according to claim 2 is characterized in that: fixed handle (1) is provided with hole clipping (4), and merging that stretching handle is provided with and hole clipping (4) matches is in the card prominent (2) on the same buttocks with hole clipping (4); Hole clipping (4) is positioned at the lower end of fixed handle (1), and card prominent (2) is positioned at the upper end of stretching handle; Stretching handle is provided with a corresponding card prominent (2), and card prominent (2) is positioned on the flexure strip (5) that connects on the stretching handle surface.