CN201646126U

CN201646126U - Movable small blackboard

Info

Publication number: CN201646126U
Application number: CN201020181537XU
Authority: CN
Inventors: 卫家宣
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-18
Filing date: 2010-04-18
Publication date: 2010-11-24
Anticipated expiration: 2020-04-18

Abstract

The utility model relates to a movable small blackboard. An upper base and an upper sliding chute which are symmetrical are arranged on a chalk table and an upper frame at one end of a large blackboard; and small blackboards are arranged between a lower base and a lower sliding chute and between the upper base and the lower base, wherein each small blackboard is formed by embedding a board of which two sides are black in an n-shaped frame. When the small blackboards are used, a plurality of small blackboards can be simultaneously installed as required and flipped sequentially for lecturing according to teaching contents, thereby saving writing time and relieving tire of writing, teaching and wiping simultaneously by the large blackboard; and when the small blackboards are not used, the small blackboards can be taken back to an office and wiped with a wet wiping cloth, thereby being more convenient and quicker than wiping the large blackboard, reducing the problem of flying dust in a classroom, and having simple structure and easy popularization.

Description

Movable small blackboard

Affiliated technical field

The utility model relates to a kind of movable small blackboard.

Background technology

Blackboard is an indispensable instrument in the teaching, particularly in the teaching of primary school, many contents of courses all are to write the limit religion in the blackboard top by teacher, sometimes also original wiping out write new content, slattern many instructional blocks of times in vain, also increase teacher teaches the limit wiping while writing fatigue simultaneously.

Summary of the invention

For overcoming in teaching, teacher writes the limit religion in the blackboard top, slattern many instructional blocks of times, and increases the deficiency of the fatigue of teacher's wiping while writing, and the utility model provides a kind of movable small blackboard.

The technical scheme that its technical problem that solves the utility model adopts is: on the chalk platform and upper side frame of big blackboard one end that has the classroom now, the semicircular top base and the upper hopper chute of a symmetry is set; Bottom base and gliding groove, and it is fastening through screw, be provided with a plurality of small blackboards between top base and bottom base, small blackboard is to embed the light weight board composition that the two sides is a black in the ∏ of rectangle aluminium alloy shape frame, the two ends of small blackboard one side are respectively arranged with circular shaft and reach circular shaft down, and circular shaft is long down for last circular shaft, and circular shaft and upper hopper chute, gliding groove flexibly connected under last circular shaft reached, circular shaft can slide in upper hopper chute and gliding groove under last circular shaft reached, and can turn in regular turn to either party and disassembled and assembled freely.

At ordinary times small blackboard is taken off and be placed in the instruction and office chamber, with the main contents that will impart knowledge to students, the emphasis that maybe needs to write on the big blackboard is written on the small blackboard, during use, the last circular shaft of small blackboard is installed in the upper hopper chute of top base, and then will descend circular shaft to be installed in the gliding groove, and a plurality of small blackboards can be installed simultaneously on demand, and stir teaching in regular turn according to the content of courses, save writing time, alleviate the fatigue of writing the wiping while teaching in big blackboard top, the content for temporary needs increases can be written on the big blackboard equally, when not using, retrieval office is with wet rag wiping, and is more convenient and swift than writing the limit wiping in big blackboard top, reduces the hidden danger that dust flies upward in the classroom.

The beneficial effects of the utility model are: during use, can a plurality of small blackboards need be installed simultaneously by teaching, and stir teaching in regular turn according to the content of courses, and save writing time, alleviate the fatigue of writing wiping in big blackboard top while teaching, when not using, retrieval office is with wet rag wiping, and is more convenient and swift than wiping on big blackboard, reduces the hidden danger that dust flies upward in the classroom, simple in structure, be easy to promote.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the basic schematic diagram of the utility model embodiment.

Fig. 2 is the local enlarged diagram of the utility model embodiment Fig. 1.

Fig. 3 is that the K of the utility model embodiment Fig. 2 is to schematic diagram.

Among the figure; 1. big blackboard, 2. chalk platform, 3. upper side frame, 4. top base, 5. upper hopper chute, 6. bottom base, 7. gliding groove, 8. screw, 9. small blackboard, 10. ∏ shape frame, 11. sheet materials, circular shaft on 12., 13. times circular shafts.

The specific embodiment

In Fig. 1, Fig. 2, Fig. 3, on the chalk platform (2) and upper side frame (3) of big blackboard (1) one end, a pair of pedestal (4) and the upper hopper chute (5) of being much of is set; Bottom base (6) and gliding groove (7), and it is fastening through screw (8), between top base (4) and bottom base (6) small blackboard (9) is set, small blackboard (9) is to embed sheet material (11) composition that the two sides is a black in the ∏ of rectangle aluminium alloy shape frame (10), the two ends of small blackboard (9) one sides are respectively arranged with circular shaft (12) and reach circular shaft (13) down, last circular shaft (12) reaches circular shaft (13) and upper hopper chute (5) down, gliding groove (7) flexibly connects, circular shaft (13) can slide in upper hopper chute (5) and gliding groove (7) under last circular shaft (12) reached, and can turn in regular turn to either party and disassembled and assembled freely.

Claims

1. a movable small blackboard comprises pedestal (4), small blackboard (9), it is characterized in that: on the chalk platform (2) and upper side frame (3) of big blackboard (1) one end, a pair of pedestal (4) and the upper hopper chute (5) of being much of is set; Bottom base (6) and gliding groove (7), and fastening through screw (8), between top base (4) and bottom base (6) small blackboard (9) being set, small blackboard (9) is to embed sheet material (11) composition that the two sides is a black in the ∏ of rectangle aluminium alloy shape frame (10).

2. the described movable small blackboard of root a tree name claim 1, it is characterized in that: the two ends of small blackboard (9) one sides are respectively arranged with circular shaft (12) and reach circular shaft (13) down, last circular shaft (12) reaches circular shaft (13) and upper hopper chute (5), gliding groove (7) flexible connection down, and circular shaft (13) can slide in upper hopper chute (5) and gliding groove (7) under last circular shaft (12) reached.