CN204055059U - A kind of removable multi-functional blackboard pulling self-cleaning formula - Google Patents

Abstract

A movable hand-pull self-clearing multifunctional blackboard, comprising a height-adjustable bracket and a blackboard body; the bracket is reversibly connected to the blackboard body; by adjusting the height of the bracket, the blackboard body is turned over to an inclined plane or a plane; The support has a push rod, and the push rod is connected to the top of the blackboard body through a suspension ring and a hinge; the lower part of the support also has a resisting rod to prevent the lower part of the blackboard body from swinging. Blackboard paper is arranged on the surface of the blackboard body, and the blackboard paper can be moved through the upper and lower rolling bearings on the support. The two ends of the shaft of the rolling bearings are provided with pull ropes; collection device. The content of the blackboard of the utility model can be self-cleared, and the blackboard can be used as a drawing board and a desk by adjusting the height of the support. Low cost, environmentally friendly and hygienic, suitable for poor mountainous areas, students do not need to attend classes in dilapidated buildings, this type of blackboard can also be taught in the open air, easy to use and easy to promote.

Description

A movable hand-pull self-clearing multifunctional blackboard

technical field

The utility model relates to a blackboard, in particular to a movable hand-drawn self-clearing multifunctional blackboard.

Background technique

The blackboards currently used in schools are fixed blackboards. Often when writing on the blackboard, you have to raise your hands above your head to write, or even stand on tiptoe to write, which is hard work. Written and spoken, it must be erased immediately. During the process of wiping the blackboard, chalk dust will fly, which will affect the teaching effect and the health of teachers and students.

Contents of the invention

The technical problem to be solved by the utility model is to provide a convenient and practical multifunctional blackboard that can be moved by hand and self-cleaned.

The utility model is achieved in that:

A movable hand-pull self-clearing multifunctional blackboard, comprising a height-adjustable bracket and a blackboard body; the bracket is reversibly connected to the blackboard body; the blackboard body can be turned over by adjusting the height of the bracket to an inclined plane, or a plane; the support has a push rod, which is connected to the top of the blackboard body through a suspension ring and a hinge; the lower part of the support also has a bar to prevent the lower part of the blackboard body from swinging; the surface of the blackboard body Blackboard paper is provided, and the blackboard paper can be moved through two upper and lower rolling bearings located on the support. The two ends of the shaft of the rolling bearing are provided with pull ropes; the bottom of the blackboard body is connected to a chalk eraser through a hydraulic hinge. Test and collect devices.

Universal wheels are provided at the bottom of the bracket.

The blackboard body is a hollow board with openings on both sides.

The middle part of the blackboard body is provided with a drawable shelf.

The middle part of the blackboard body is provided with a drawable chalk box.

The middle part of the blackboard body is provided with dust-absorbing cotton.

The middle part of the blackboard body is provided with a drawable suspension rod for hanging albums.

The drawable suspension rod is a hollow rod inside which a pointer can be placed.

The utility model has the advantages that the contents of the blackboard can be self-cleared, and the blackboard can be used as a drawing board and a desk by adjusting the height of the support. Low cost, environmentally friendly and hygienic, suitable for poor mountainous areas, students do not need to attend classes in dilapidated buildings, this type of blackboard can also be taught in the open air, easy to use and easy to promote.

Description of drawings

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the back structure of the utility model.

Fig. 2 is a side view of the utility model.

Detailed ways

Please refer to Figures 1 and 2, a movable hand-pull self-clearing multifunctional blackboard, including a height-adjustable bracket 1 and a blackboard body 2; the bracket 1 is reversibly connected to the blackboard body 2; by adjusting the bracket 1 The height of the blackboard body 2 is turned over to an inclined plane or plane, which can be used as a drawing board or as a desk; the support has a push rod 3, which is connected to the top of the blackboard body 2 through the suspension ring 4 and the hinge 5; the support The lower part of the blackboard body 1 also has a bar 6 that prevents the lower part of the blackboard body 1 from swinging.

The blackboard body 1 is provided with blackboard paper on the surface, and the blackboard paper can be moved through two upper and lower rolling bearings on the support 1, and the two ends of the shaft of the rolling bearings are provided with pull ropes 7; the bottom of the blackboard body 1 is connected by a hydraulic hinge. Chalk wiping and collecting device 8. By pulling the stay cord 7 to rotate the shaft, the blackboard paper is moved within 360 degrees, and when the blackboard paper moves to the chalk wiping and collecting device 8, the content on the blackboard paper can be automatically removed.

The bottom of the support is provided with universal wheels 9. The blackboard body 1 is a hollow board with openings on both sides. A drawable shelf 10 is provided in the middle of the blackboard body 1 . The middle part of the blackboard body 1 is provided with a drawable chalk box 11 . The middle part of the blackboard body 1 is provided with dust-absorbing cotton (not shown). The middle part of the blackboard body 1 is provided with a drawable suspension rod 12 for hanging albums. The drawable suspension rod 12 is a hollow rod in which a pointer 13 can be placed.

The content of the excellent blackboard of the utility model can be self-cleared, and the blackboard can be turned over to an inclined plane or a plane by adjusting the height of the support, so that it can be used as a drawing board or a desk. Low cost, environmentally friendly and hygienic, suitable for poor mountainous areas, students do not need to attend classes in dilapidated buildings, this type of blackboard can also be taught in the open air, easy to use and easy to promote.

The above-mentioned embodiments and drawings do not limit the product form and style of the present utility model, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present utility model.

Claims (8)

1. the removable multi-functional blackboard pulling self-cleaning formula, is characterized in that: comprise Height Adjustable support, blackboard body; Described support connects described blackboard body turningly; By regulating the height of described support, described blackboard body is turn to inclined-plane, or plane; Described support has a push rod, and this push rod is by the top of blackboard body described in suspension ring and chain connection; Described support bottom also has a support rod preventing blackboard body bottom from waving; Described blackboard body surface is provided with blackboard paper, and it is removable that this blackboard paper realizes blackboard paper by two rolling bearings be up and down positioned on described support, and the axle two ends of described rolling bearing are arranged with stay cord; Chalkboard eraser examination and a gathering-device is connected by hydraulicefficiency hinge bottom described blackboard body.

2. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 1, is characterized in that: described frame bottom is provided with universal wheel.

3. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 1, is characterized in that: described blackboard body is the plate body of both-side opening, hollow.

4. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 3, is characterized in that: be provided with pullable rack in the middle part of described blackboard body.

5. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 3, is characterized in that: be provided with pullable chalk holder in the middle part of described blackboard body.

6. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 3, is characterized in that: be provided with dust suction cotton in the middle part of described blackboard body.

7. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 3, is characterized in that: be provided with the pullable hanger bar for hanging atlas in the middle part of described blackboard body.

8. a kind of removable multi-functional blackboard pulling self-cleaning formula as claimed in claim 7, is characterized in that: described pullable hanger bar is the hollow stem that teacher's pointer can be put in inside.