CN213007276U

CN213007276U - Wall-mounted teaching blackboard

Info

Publication number: CN213007276U
Application number: CN202021827704.3U
Authority: CN
Inventors: 何旭兰
Original assignee: Yiwu Industrial and Commercial College
Current assignee: Yiwu Industrial and Commercial College
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-04-20
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a wall-mounted teaching blackboard, which relates to the technical field of blackboards. The utility model comprises an upper sliding rail frame, the upper sliding rail frame is in the shape of a rectangular parallelepiped, and the surface of the upper sliding rail frame is provided with an arc. There are several sets of blackboard sliders at the bottom of the flipped blackboard board, and a sliding flip device is connected to the top of the flipped blackboard board. When the connecting slider is at the rounded position of the arc-shaped groove, the rocker arm is rotated to exert force on the flipped blackboard plate, which realizes the free switching of the two surfaces of the blackboard plate. When the blackboard needs to be cleaned, the folding telescopic baffle is extended to The folding telescopic baffles on both sides cover the blackboard, and the board brush on the inner side of the folding telescopic baffles wipes the blackboard, and the dust is sucked into the dust collection box by the vacuum fan for collection, which can prevent The function of dust-wiping the blackboard.

Description

Wall-mounted teaching blackboard

Technical Field

The utility model relates to a blackboard technical field specifically is a wall-hanging teaching blackboard.

Background

The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard, and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Mostly black, greenish black, white or beige. The types of blackboards also become complicated and diversified, and the surface shape is divided into a plane board and an arc panel, the structure is divided into a support movable board, a push-pull board, a lifting board and a magnetic blackboard, and the purpose is divided into a teaching blackboard, an office whiteboard, a billboard and a display board.

The blackboard that uses in the classroom usually is mostly wall-hanging blackboard, writes in daily teaching, for the convenience of student note taking, and the teacher generally remains the characters a period after writing finishing, but the blackboard size is limited, and the content of writing is also limited, simultaneously, writes on the blackboard after, often needs the blackboard eraser to erase the chalk word, can raise a large amount of dusts at the erasing in-process, is unfavorable for human health.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wall-hanging teaching blackboard to solve the problem of proposing among the above-mentioned background art.

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

a wall-mounted teaching blackboard comprises an overturning blackboard block, an upper slide rail frame, a lower slide rail frame, a side edge mounting frame and a sliding blackboard block, wherein the upper slide rail frame is of a cuboid plate-shaped structure, the surface of the upper slide rail frame is provided with an arc-shaped groove and a straight groove in a penetrating manner, a plurality of groups of blackboard sliders are arranged at the bottom of the overturning blackboard block, a sliding overturning device is connected to the top of the overturning blackboard block and comprises a mounting plate, the mounting plate is fixedly mounted on one side of the top end of the upper slide rail frame, an electric push rod is mounted on the surface of the mounting plate, one end of the electric push rod, which is far away from the mounting plate, is connected with a connecting slider, the connecting slider is connected to the upper slide rail frame in a sliding manner, a through hole is formed in the inside of the connecting slider, a connecting rod is arranged in the through hole, and a connecting pin is fixed on the lower end face of one end of the rocker arm, which is far away from the connecting rod, and the connecting pin is rotatably connected with the top of the turnover blackboard block.

Furthermore, a rotating handle is fixedly arranged at one end of the connecting rod, which is far away from the rocker arm.

Furthermore, a plurality of blackboard sliding blocks are arranged on the upper end surface and the lower end surface of each of the turnover blackboard block and the sliding blackboard block.

Further, the lower slide rail frame is of a cuboid plate-shaped structure, a plurality of sliding grooves are formed in the surface of the lower slide rail frame, and blackboard sliding blocks are connected into the sliding grooves of the lower slide rail frame and the upper slide rail frame in a sliding mode.

Furthermore, a plurality of wall hanging supports are installed on the back of the lower sliding rail frame and the back of the upper sliding rail frame.

Further, the side mounting bracket is cuboid shell column structure, the internally mounted of side mounting bracket has folding telescopic baffle, one side that folding telescopic baffle front end is close to the upset blackboard plate is provided with the face brush, the face brush contacts with the face of upset blackboard plate.

Furthermore, a dust suction fan is arranged on the inner wall of the side mounting frame, and one side, far away from the turnover blackboard block, of the dust suction fan is connected with a dust collection box through an exhaust pipe.

Compared with the prior art, the beneficial effects of the utility model are that: when the turnover blackboard block is turned over, the connecting slide block is transversely pushed by the electric push rod, and the turnover blackboard block is driven to move rightwards along the slide grooves of the upper slide rail frame and the lower slide rail frame, when the connecting slide block is positioned at the fillet position of the arc-shaped groove, the connecting rod is rotated by rotating the handle, and the rocker arm which is rotationally connected with the connecting rod is driven to apply force to the turnover blackboard block through the connecting pin, the blackboard slide block at the upper end and the lower end of the turnover blackboard block is temporarily separated from the chute, and returns to the chute again after completing the turning motion, thereby realizing the free switching of the two surfaces of the blackboard block, when the blackboard needs to be erased, the folding retractable baffle plates are extended out, the folding retractable baffle plates on the two sides shield the blackboard surface, meanwhile, the blackboard is wiped by the board brush on the inner side of the folding telescopic baffle, and the dust which is wiped down is sucked into the dust collection box through the dust collection fan to be collected, so that the function of preventing dust and wiping the blackboard is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic perspective view of the upper slide rail frame of the present invention.

Fig. 4 is a schematic structural view of the middle sliding turnover device of the present invention.

In the figure: 1-slide turning device, 11-mounting plate, 12-electric push rod, 13-connecting slide block, 14-connecting rod, 15-rocker arm, 16-connecting pin, 17-rotating handle, 2-turning blackboard block, 21-blackboard slide block, 3-upper slide rail frame, 31-arc groove, 32-straight groove, 4-lower slide rail frame, 5-side mounting frame, 51-folding telescopic baffle, 52-board brush, 6-dust collecting box, 61-dust collecting fan, 7-middle connecting block, 8-slide blackboard block, and 9-wall hanging support.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Example 1:

referring to fig. 1 to 4, in the embodiment of the present invention, a wall-mounted teaching blackboard comprises a turnover blackboard block 2, an upper slide rail frame 3, a lower slide rail frame 4, a side edge mounting frame 5 and a sliding blackboard block 8, wherein the upper slide rail frame 3 is of a rectangular plate-shaped structure, an arc-shaped groove 31 and a straight groove 32 are formed on the surface of the upper slide rail frame 3, a plurality of blackboard sliders 21 are arranged at the bottom of the turnover blackboard block 2, a sliding turnover device 1 is connected to the top of the turnover blackboard block 2, the sliding turnover device 1 comprises a mounting plate 11, the mounting plate 11 is fixedly mounted on one side of the top end of the upper slide rail frame 3, an electric push rod 12 is mounted on the surface of the mounting plate 11, one end of the electric push rod 12, which is far away from the mounting plate 11, is connected to a connecting slider 13, the connecting slider 13 is slidably connected to the upper, and a connecting rod 14 is arranged in the through hole in a penetrating manner, one end of the connecting rod 14 penetrates through an arc-shaped groove 31 arranged at the top of the upper slide rail frame 3 and is rotatably connected with a rocker arm 15, a connecting pin 16 is fixed on the lower end face of the rocker arm 15 far away from one end of the connecting rod 14, and the connecting pin 16 is rotatably connected with the top of the turnover blackboard plate 2.

When the turnover blackboard block 2 is turned over, firstly, the connecting slide block 13 is transversely pushed through the electric push rod 12, the turnover blackboard block 2 is driven to move rightwards along the sliding grooves of the upper sliding rail frame 3 and the lower sliding rail frame 4, when the connecting slide block 13 is positioned at the fillet position of the arc-shaped groove 31, the connecting rod 14 is rotated through the rotating handle 17, the rocker arm 15 which is rotatably connected with the connecting rod is driven to apply force to the turnover blackboard block 2 through the connecting pin 16, the blackboard slide blocks 21 at the upper end and the lower end of the turnover blackboard block 2 are temporarily separated from the sliding grooves, and the turnover blackboard block returns to the sliding grooves again after the turnover movement is completed, so that the free switching of.

And a rotating handle 17 is fixedly arranged at one end of the connecting rod 14 far away from the rocker arm 15, so that the blackboard plate 2 can be conveniently turned over.

The upper end face and the lower end face of the turnover blackboard block 2 and the sliding blackboard block 8 are both provided with a plurality of blackboard sliding blocks 21.

Lower slide rail frame 4 is cuboid platelike structure, and is provided with the multichannel spout on the surface of lower slide rail frame 4, all sliding connection has blackboard slider 21 in the spout of lower slide rail frame 4 and last slide rail frame 3.

And a plurality of wall hanging brackets 9 are arranged on the back surfaces of the lower slide rail frame 4 and the upper slide rail frame 3.

Example 2:

referring to fig. 1 to 4, on the basis of embodiment 1, the side mounting bracket 5 is a rectangular parallelepiped shell structure, a foldable telescopic baffle 51 is installed inside the side mounting bracket 5, a board brush 52 is disposed at one side of the front end of the foldable telescopic baffle 51, which is close to the turnover blackboard block 2, and the board brush 52 contacts with the board surface of the turnover blackboard block 2. When the blackboard needs to be erased, the folding telescopic baffle 51 is extended out, the blackboard surface is covered by the folding telescopic baffles 51 at the two sides, and meanwhile, the blackboard is erased by the blackboard surface brush 52 at the inner side of the folding telescopic baffle 51, so that the function of preventing dust and erasing the blackboard is achieved.

The inner wall of the side mounting frame 5 is provided with a dust suction fan 61, and one side of the dust suction fan 61 far away from the turnover blackboard plate 2 is connected with a dust collection box 6 through an exhaust pipe. The dust collection fan 61 is provided to work in cooperation with the foldable retractable baffle 51 and the panel brush 52, and dust collected by wiping is sucked into the dust collection box 6 for collection.

The utility model discloses a theory of operation is: when the turnover blackboard block 2 is turned over, firstly, the connecting slide block 13 is transversely pushed by the electric push rod 12, and the turnover blackboard block 2 is driven to move rightwards along the chutes of the upper slide rail frame 3 and the lower slide rail frame 4, when the connecting slide block 13 is positioned at the fillet position of the arc chute 31, the connecting rod 14 is rotated by the rotating handle 17, and the rocker arm 15 which is rotatably connected with the connecting rod is driven to apply force to the turnover blackboard block 2 through the connecting pin 16, the blackboard slide block 21 at the upper end and the lower end of the turnover blackboard block 2 is temporarily separated from the chute, and returns to the chute after the turnover movement is completed, so that the free switching of two surfaces of the blackboard block is realized, when the blackboard needs to be cleaned, the folding telescopic baffle 51 is extended, the folding telescopic baffles 51 at the two sides cover the blackboard surface, meanwhile, the blackboard is cleaned by the blackboard brush 52 at the inner side of the folding telescopic baffle 51, and the dust, the dust which is wiped and dropped is sucked into the dust collection box 6 for collection, thereby playing the function of dust prevention and blackboard cleaning.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A wall-mounted teaching blackboard, comprising a flip blackboard plate (2), an upper slide rail frame (3), a lower rail frame (4), a side mounting frame (5) and a sliding blackboard plate (8), wherein The upper slide rail frame (3) has a cuboid plate-like structure, and the surface of the upper slide rail frame (3) is provided with an arc-shaped groove (31) and a straight groove (32), and the flipped blackboard plate (2) ) is provided with a plurality of groups of blackboard sliders (21) at the bottom, and the top of the flipped blackboard board (2) is connected with a sliding flipping device (1), the sliding flipping device (1) includes a mounting plate (11), and the installation The plate (11) is fixedly installed on the top side of the upper slide rail frame (3), and an electric push rod (12) is installed on the plate surface of the mounting plate (11), and the electric push rod (12) is far away from the mounting plate ( One end of 11) is connected with a connecting slider (13), and the connecting slider (13) is slidably connected to the upper slide rail frame (3). A connecting rod (14) is provided through the hole, and one end of the connecting rod (14) penetrates the arc groove (31) provided on the top of the upper slide rail frame (3) and is rotatably connected with a rocker arm (15). A connecting pin (16) is fixed on the lower end surface of one end of the arm (15) away from the connecting rod (14), and the connecting pin (16) is rotatably connected with the top of the flipped blackboard plate (2).

2 . The wall-mounted teaching blackboard according to claim 1 , wherein a rotating handle ( 17 ) is installed and fixed at one end of the connecting rod ( 14 ) away from the rocker arm ( 15 ). 3 .

3. A wall-mounted teaching blackboard according to claim 1, characterized in that, a plurality of blackboard sliders (21) are provided on the upper and lower end surfaces of the flipping blackboard plate (2) and the sliding blackboard plate (8). ).

4. A wall-mounted teaching blackboard according to claim 1, characterized in that the lower rail frame (4) is in the shape of a rectangular parallelepiped, and the surface of the lower rail frame (4) is provided with a plurality of slides A blackboard slider (21) is slidably connected in the chute of the lower rail frame (4) and the upper slide rail frame (3).

5 . The wall-mounted teaching blackboard according to claim 4 , wherein a plurality of wall-mounted brackets ( 9 ) are installed on the backs of the lower rail frame ( 4 ) and the upper slide rail frame ( 3 ). 6 .

6 . The wall-mounted teaching blackboard according to claim 1 , wherein the side mounting frame ( 5 ) is in the shape of a rectangular parallelepiped shell, and the side mounting frame ( 5 ) is internally mounted with a folding A telescopic baffle (51), the front end of the folding telescopic baffle (51) is provided with a board surface brush (52) on the side close to the flipped blackboard plate (2). ) are in contact with the board surface.

7. A wall-mounted teaching blackboard according to claim 6, characterized in that, a vacuum fan (61) is provided on the inner wall of the side mounting frame (5), and the vacuum fan (61) A dust collecting box (6) is connected to the side away from the flipped blackboard plate (2) through an exhaust pipe.