CN211641604U

CN211641604U - Novel blackboard

Info

Publication number: CN211641604U
Application number: CN202020251669.9U
Authority: CN
Inventors: 解凌云
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-09
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a novel blackboard, including mounting panel, backplate, the backplate is fixed to be set up on the mounting panel backplate upper end be provided with the warming mill, the lower extreme of backplate is provided with the live-rollers, encircles the tube-shape software blackboard that sets up on warming mill and live-rollers, the live-rollers rotates and drives the blackboard circulation, is provided with the tensioning piece at the backplate back and tightens the software blackboard, the warming mill slide to set up on the mounting panel, the warming mill reciprocates and drives the software blackboard flexible in order to increase or reduce the positive visual area of blackboard.

Description

Novel blackboard

Technical Field

The utility model relates to a teaching aid field especially relates to a novel blackboard.

Background

In the prior art, most of blackboards in classrooms of schools are hard blackboards, and the blackboards after writing are generally erased by chalk dust or handwriting through an eraser.

The blackboard with the flexible rotation type also appears in the prior art, the blackboard is rolled through the rolling shaft, the blackboard is erased and cleaned on the back surface of the blackboard, and meanwhile, normal blackboard writing on the front surface of the blackboard is not influenced, for example, the dustless rolling blackboard disclosed by patent No. 201711266124.4 has a plurality of improved spaces in the structure, firstly, the erasing structure can not be flexibly controlled, the blackboard writing is inconvenient to use under the condition that a teacher needs to keep the blackboard writing and keep knowledge points, and when the blackboard writing needs to be kept, the problem that how to increase the position capable of writing on the blackboard is also needed to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to overcome the defects, a novel blackboard which is convenient to use and not easy to wrinkle is provided.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel blackboard, includes the mounting panel, the backplate is fixed to be set up on the mounting panel backplate upper end be provided with the warming mill, the lower extreme of backplate is provided with the live-rollers, encircles the tube-shape software blackboard that sets up on warming mill and live-rollers, the live-rollers rotates and drives the blackboard circulation, is provided with the tensioning piece at the backplate back and tightens the software blackboard, the warming mill slide to set up on the mounting panel, the warming mill reciprocates and drives the software blackboard flexible in order to increase or reduce the positive visible area of blackboard.

As a preferred technical scheme, tensioning piece include the pivot of two parallels and connect the connecting rod between two pivots, the part that the software blackboard is located one side at the backplate back be the winding of S type on tensioning piece, two pivots in the tensioning piece, one of them weight is greater than another, during the winding, the software blackboard is pushed down to heavier pivot.

As a preferred technical scheme, be provided with the limiting plate on the mounting panel, be provided with spacing hole on the limiting plate, spacing hole is the same with pivot quantity, spacing hole set up the arc hole on same ring, the position in one of them spacing hole is higher than the position in another spacing hole, the higher spacing downthehole pivot that sets up weight greatly of position.

As an optimal technical scheme, downside at the live-rollers is provided with belt cleaning device, belt cleaning device be the U type, be close to the positive one side of blackboard in belt cleaning device, be provided with atomizer, be close to the one side at the blackboard back in belt cleaning device, be provided with the sponge brush, belt cleaning device's bottom fretwork, the sponge brush pass through electric putter and fix on the mounting panel, when electric putter stretches out, promote the sponge brush, make the sponge brush on the sponge brush hug closely the blackboard, the live-rollers rotates the blackboard, the sponge brush is to blackboard surface clearance, when electric putter shrink, the sponge brush loosens the blackboard, rotates the blackboard this moment, the blackboard can't be cleared up to the sponge brush.

Since the proposal is adopted, the beneficial effects of the utility model reside in that: the live-rollers of setting, the backup pad, the backplate, soft blackboard, through setting up the blackboard eraser and the sponge that absorbs water, set up the warming mill, can be fast with blackboard evaporation to dryness, set up two sets of tensioning pieces, through tensioning piece with the tensioning of software blackboard, and make the folding shrink of partial software blackboard, when needs increase blackboard visible area, through electric putter promotion, release the blackboard of shrink, increase visible area, when needs reduce visible area, tensioning piece is under self action of gravity, accomplishes returning of software blackboard and contracts, the utility model discloses simple structure, the practicality is strong, is worth the application and popularization.

Drawings

FIG. 1 is a side schematic view of the present invention;

FIG. 2 is a schematic view of the interior of the present invention at A;

FIG. 3 is a schematic structural view of the tension member of the present invention when it is rotated by a force;

fig. 4 is a perspective view of the present invention;

FIG. 5 is a schematic top view of the cleaning device of the present invention;

in the figure: mounting panel 1, backplate 2, blackboard 3, live-rollers 4, warming mill 5, slide rail 6, tensioning piece 7, pivot 701, connecting rod 702, limiting plate 8, spacing hole 9, belt cleaning device 10, atomizer 11, waste liquid collecting box 12, sponge brush 13, actuating mechanism 14, electric putter 15.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Examples

The utility model provides a novel blackboard, includes mounting panel 1, backplate 2, is provided with the tube-shape blackboard 3 of software on the backplate 2, and backplate 2 sets up inside the blackboard 3 of tube-shape, and the one side of 2 positive orientations of backplate is the writing surface.

The back plate 2 is connected with the mounting plate 1 through a support, the lower end of the back plate 2 is provided with a rotating roller 4, and the axle center of the rotating roller 4 at the lower end of the back plate 2 is fixedly connected with the mounting plate 1.

The upper end of backplate 2 is provided with warming mill 5, upper portion both sides at mounting panel 1 are provided with slide rail 6, warming mill 5 both ends are provided with the spout that matches with slide rail 6, make warming mill 5 can be relatively mounting panel 1 upwards slip, be provided with actuating mechanism 14 on mounting panel 1, actuating mechanism 14 drive warming mill 5 reciprocates, actuating mechanism 14 is electric putter, electric putter's flexible promotion warming mill 5 reciprocates, slide rail and spout structure are conventional slidable structure, so do not detail here.

Be provided with two tensioning pieces 7 at mounting panel 1 downside, tensioning piece 7 symmetry set up, tensioning piece 7 includes two parallel pivots 701 and connects the connecting rod 702 between two pivots 701.

As shown in figure 2, one side of the soft blackboard 3, which is positioned on the back of the backboard 2, is wound on the tension member 7 in an S shape.

The limiting plate 8 that the connecting rod 702 and the last setting of mounting panel 1 articulated, tensioning 7 can rotate certain angle for the axle at the center of connecting rod 702 promptly the utility model discloses in, two pivots 701 in the tensioning 7, one of them weight is greater than another.

The utility model discloses in, connecting rod 702 certain distance is all stretched out at the pivot 701 both ends of tensioning piece 7, establishes on mounting panel 1 the utility model discloses in, set up each group spacing hole 9 on limiting plate 8, one of them spacing hole 9' S position is higher than the position of another spacing hole 9, the tip of the spacing hole 9 of upside is no longer than the central line of ring, wherein set up the great pivot 701 of weight in the higher spacing hole 9 of position, the back of software blackboard 3 is the winding of S type on tensioning piece 7, during the winding, heavier pivot 701 pushes down software blackboard 3, the 3 winding modes of blackboard of two tensioning pieces 7 are the same.

A cleaning device 10 is arranged on the lower side of the back plate 2, the section of the cleaning device 10 is U-shaped, atomizing nozzles 11 are arranged on one side, close to the front face of the blackboard 3, in the cleaning device 10, and the atomizing nozzles 11 are arranged in rows. A water supply pump is provided outside the cleaning device 10, and the water supply pump connects the plurality of atomizing heads 11 via a water supply pipe.

Belt cleaning device 10's bottom fretwork, whole belt cleaning device 10's bottom is the opening of bar promptly, be provided with waste liquid collecting box 12 at belt cleaning device 10 downside, 11 spun water injection of atomizer is on blackboard 3 surface, unnecessary rivers fall into waste liquid collecting box 12 from the downside, be close to the one side at the blackboard 3 back in belt cleaning device 10, be provided with banding sponge brush 13, sponge brush 13 level sets up, atomizer 11 spouts water and invades wet blackboard 3 face and rotate to sponge brush 13 one side through rotor roll 4, sponge brush 13 pushes down blackboard 3 board and clears up it, at this moment, the water of erasing through sponge brush 13 falls into waste liquid collecting box 12 from scrubbing the device downside.

The sponge brush passes through electric putter and sets up in belt cleaning device, and when electric putter stretches out, promotion sponge brush 10 makes sponge brush 13 hug closely blackboard 3, and the live-rollers rotates the blackboard, and the sponge brush is to blackboard surface clearance, and when electric putter shrink, sponge brush 13 leaves blackboard 3 surfaces (should stop the working shaft simultaneously), rotates blackboard 3 this moment, does not clean the blackboard, then can remain the blackboard-writing, the utility model discloses in, belt cleaning device 10's U type structure opening is greater than the diameter of live-rollers 4.

When the utility model is used, in a natural state, the electric push rod on the upper side retracts to the lowest position, at the moment, the tensioning part 7 tightens the soft blackboard 3, the heavier rotating shaft 701 in the tensioning part 7 moves downwards in the limiting hole 9, the lighter rotating shaft 701 moves upwards, when the visible area of the blackboard 3 needs to be increased, the electric push rod on the upper side is started, the electric push rod pushes the heating roller 5 to move upwards, at the moment, the soft blackboard 3 extends upwards along with the pushing of the heating roller 5, the soft blackboard 3 pulls the heavier rotating shaft 701 of the tensioning part 7 upwards, at the moment, the tensioning part 7 rotates a certain angle, the heavier rotating shaft 701 rotates to the upper part, the lighter rotating shaft 701 rotates to the lower part, at the moment, the soft blackboard 3 wound and contracted on the tensioning part 7 is unfolded, the heating roller 5 continues to move upwards, at the moment, the distance between the heating roller 5 and the upper end of the backboard, after the blackboard 3 is displayed, the electric push rod on the upper side is contracted, the heavier rotating shaft 701 of the tensioning part 7 moves downwards along the limiting hole 9 under the action of self gravity, and the lighter rotating shaft 701 moves upwards to roll the unfolded blackboard 3 again. The belt cleaning device 10 of downside passes through electric putter 15 and sets up, when needs use belt cleaning device 10 to clear up 3 surfaces on the blackboard, electric putter 15 stretches out, compress tightly sponge brush 13 on blackboard 3, open the water pump, atomizer 11 is stained with water and is soaked 3 surfaces on the blackboard, the motor drives live-rollers 4, blackboard 3 encircles, thereby make sponge brush 13 with 3 surface cleaning on the blackboard, waste water enters into the waste water collecting box that the downside set up, warming mill 5 dries 3 surfaces on the wetted blackboard.

The utility model discloses in, backplate 2's upper end and rotation warming mill 5 not lug connection because blackboard 3's upper portion is not directly written, set up it unsettledly can not influence the student and observe blackboard 3 and can select the visual area increase or reduce blackboard 3 through the electric putter of adjustment upside, more nimble during the use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel blackboard, includes the mounting panel, the backplate is fixed to be set up on the mounting panel, its characterized in that backplate upper end be provided with the warming mill, the lower extreme of backplate is provided with the live-rollers, encircles the tube-shape software blackboard that sets up on warming mill and live-rollers, the live-rollers rotates and drives the blackboard circulation, is provided with the tensioning piece at the backplate back and tensions the software blackboard, the warming mill slide to set up on the mounting panel, the warming mill reciprocates and drives the software blackboard and stretch out and draw back in order to increase or reduce the positive visual area of blackboard.

2. The blackboard according to claim 1, wherein the tension member includes two parallel shafts and a connecting rod connected between the two shafts, the portion of the soft blackboard on one side of the back of the backboard is wound around the tension member in an S-shape, one of the two shafts in the tension member has a greater weight than the other shaft, and the heavier shaft presses the soft blackboard during winding.

3. The novel blackboard according to claim 2, characterised in that a limiting plate is provided on the mounting plate, limiting holes are provided on the limiting plate, the number of the limiting holes is the same as the number of the rotating shafts, the limiting holes are provided in the arc-shaped holes on the same ring, one of the limiting holes is higher than the other limiting hole, and a rotating shaft with a larger weight is provided in the higher limiting hole.

4. The novel blackboard according to claim 1, characterized in that a cleaning device is arranged at the lower side of the rotating roller, the cleaning device is U-shaped, one side of the cleaning device, which is close to the front side of the blackboard, is provided with an atomizing nozzle, one side of the cleaning device, which is close to the back side of the blackboard, is provided with a sponge brush, the bottom of the cleaning device is hollow, the sponge brush is fixed on the mounting plate through an electric push rod, when the electric push rod extends out, the sponge brush is pushed to enable the sponge brush on the sponge brush to cling to the blackboard, the rotating roller rotates the blackboard, the sponge brush cleans the surface of the blackboard, when the electric push rod retracts, the sponge brush loosens the blackboard, the blackboard is rotated at the moment, and the sponge brush cannot clean the blackboard.