CN105564096A

CN105564096A - Universal blackboard

Info

Publication number: CN105564096A
Application number: CN201610017028.5A
Authority: CN
Inventors: 王长科; 肖守讷; 阳光武; 朱涛; 杨冰
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2016-01-12
Filing date: 2016-01-12
Publication date: 2016-05-11

Abstract

The invention discloses a universal blackboard. Left and right transverse moving unit boards 202 realize transverse movement on an outer frame 100 through rollers 205 at the bottoms rolling on two parallel guide rails 101 of the outer frame 100; each transverse moving unit board consists of two upper and lower moving plates arranged up and down, and a small outer frame 201 for suspending the upper and lower moving plates, and the two upper and lower moving plates are suspended on pulleys 203 of an inner frame of the small outer frame through flexible ropes 204 thereon. The universal blackboard has the following beneficial effects that (1) the universal blackboard is provided with four blackboard surfaces, so that the writing area is large; and (2) a modular design idea is applied to realize left-right pushing and pulling of the upper and lower moving plates, so that the movement of the whole blackboard surface is more flexible, and the convenience can be provided when a shielding matter is on one side of the blackboard.

Description

A kind of universal blackboard

Technical field

The present invention relates to a kind of blackboard, especially a kind of blackboard that can adjust arbitrarily position, plate face.

Prospect technology

At present, the Push-pull blackboard that most of colleges and universities use mainly is divided into the plug-type and type of push and pull up down in left and right, and left and right Push-pull blackboard is made up of two pieces of blackboard surfaces, can move left and right, but this blackboard writing region is less, fully can not apply metope space, classroom.Type of push and pull up down blackboard is two pieces of blackboard surfaces each side, and two pieces of blackboard surfaces of every side can push-and-pull up and down, and this blackboard writing region is large, can make full use of metope space.In current teaching, projecting apparatus becomes indispensable instruments used for education already, but in space constraint, projector curtain is usually arranged on the top of blackboard side.When projector curtain puts down, the blackboard of side will be blocked, the blackboard surface of half cannot be used, affect teaching.

Summary of the invention

The advantage making full use of the movement flexibly of metope space, classroom and blackboard surface cannot be possessed to overcome existing blackboard simultaneously, the invention provides a kind of universal blackboard, this blackboard has four pieces of blackboard surfaces, not only write region large, and can movement flexibly, even if there is covering the side of blackboard, four pieces of blackboard surfaces also can be write cmpletely, greatly improve efficiency of teaching.The object of the invention is by following means realize:

A kind of universal blackboard, two blocks, left and right cross travel unit plate 202 realizes the transverse shifting at outside framework 100 by two closed slides rollings 101 of roller 205 on outside framework 100 of its upper bottom portion; Every block cross travel unit plate is made up of about two pieces moving up and down plate and hanging the little outside framework 201 moving up and down plate of arranging, two pieces are moved up and down plate and are suspended on the pulley 203 on little outside framework inside casing by the flexible strand 204 on it.

Application module design concept of the present invention, four pieces of blackboard surfaces are divided into two modules, two pieces of blackboard surfaces of each module are stuck in the sliding tray of outside framework, and a flexible strand is walked around a pulley and connected two blackboard surfaces, so just achieves the push-and-pull up and down of two blackboard surfaces in current block.The below of this module is provided with two rollers, and two move up and down plate and wrapped up by a large outside framework, and the guide rail of the roller and outside framework that move up and down plate assembles, and so just achieves the left and right push-and-pull that two move up and down plate.When the side of blackboard is covered, two pieces of blackboard surfaces of opposite side can be write by upper and lower push-and-pull, when the blackboard surface of this side is write full, can be write the blackboard surface of opposite side by left and right push-and-pull.

Compared with prior art, the invention has the beneficial effects as follows: one, have four pieces of blackboard surfaces, it is large to write region.Two, application module design concept, achieves the left and right push-and-pull that two move up and down plate, makes the movement of each blackboard surface more flexible, can have during overcover provide convenience in the side of blackboard.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is general structure schematic perspective view of the present invention.

Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.

Fig. 3 is the B-B cutaway view Amplified image of Fig. 1.

Fig. 4 is the little outside framework schematic perspective view of the present invention.

Fig. 5 is the K portion enlarged drawing of Fig. 4.

Fig. 6 is the little outside framework front view of the present invention.

Fig. 7 is the C-C sectional view of Fig. 6.

Fig. 8 is the schematic perspective view that the present invention moves up and down the roller that plate is installed below.

100. outside frameworks in figure, 101. guide rails, 102. guide grooves, 200. move up and down plate, 201. little outside frameworks, 202. blackboard surfaces, 203. pulleys, 204. flexible strand, 205. rollers, 206. sliding trays.

Detailed description of the invention

Fig. 1 is general structure of the present invention, moves up and down the outside framework shown in plate outer wrapping Fig. 4 shown in two Fig. 3.

In the embodiment shown in fig. 4, two pieces of blackboard surfaces 202 are arranged in the sliding tray 206 of little outside framework 201, and flexible strand 204 walks around the upper end that pulley 203 connects two pieces of blackboard surfaces 202, so just achieves sliding up and down of two pieces of blackboard surfaces 202.The roller 205 of two band grooves is installed in the lower end of little outside framework 201, the whole plate that moves up and down can be moved left and right.

Two upper ends moving up and down plate (Fig. 3) are stuck in the guide groove 102 of outside framework (Fig. 2), the groove moving up and down the roller 205 (Fig. 5) of the lower end of plate (Fig. 3) matches with the guide rail 101 of outside framework (Fig. 2), realizes moving up and down moving left and right of plate.

Claims

1. a universal blackboard, it is characterized in that, two pieces, left and right cross travel unit plate (202) is by the transverse shifting of two closed slide (101) scrolling realization of the roller (205) bottom it on outside framework (100) at outside framework 100; Every block cross travel unit plate is made up of about two pieces moving up and down plate and hanging the little outside framework (201) moving up and down plate of arranging, two pieces move up and down on the pulley (203) that plate is suspended on by the flexible strand (204) on it on little outside framework inside casing.

2. universal blackboard according to claim 1, is characterized in that, is provided with and is convenient to two pieces of sliding trays (206) moving up and down plate and realize smoothly moving up and down in the vertical frame of little outside framework.