CN211764498U

CN211764498U - Foldable movable blackboard for teaching

Info

Publication number: CN211764498U
Application number: CN201921689568.3U
Authority: CN
Inventors: 林玉保
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-10-27
Anticipated expiration: 2029-10-10

Abstract

The utility model relates to the technical field of teaching aids, in particular to a foldable movable blackboard for teaching, which comprises a main board and a side board, wherein the bottom end of the main board is fixedly connected with a lifting column, the outer side of the lifting column is slidably connected with a bottom column, the bottom end of the bottom column is fixedly connected with a base, the left end and the right end of the main board are both rotatably connected with a hinge, the left end of the hinge positioned at the left side and the right end of the hinge positioned at the right side are both rotatably connected with a side board, the main board and the inner side of the rear end of the side board are both slidably connected with a slide block, the rear end of the slide block is rotatably connected with a connecting rod through a hinge, the connecting rod positioned at the rear of the side board is rotatably connected with the connecting rod positioned at the rear of the main board through the hinge, in the utility model, the side board, the hinge and, thereby realize the folding of device, make things convenient for the removal of blackboard, place and use, provide the practicality of device.

Description

Foldable movable blackboard for teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a folding teaching is with removing blackboard.

Background

The blackboard is not particularly a black board, is a plane which can be repeatedly written by chalk in the traditional sense, has a hard board surface and is mainly used for teaching, is generally made of wood boards or ground glass and can be written on by specific writing materials such as chalk and the like, and is mostly black, dark green, white or beige.

The existing blackboard is inconvenient to use due to the fact that the existing blackboard is large in size, the blackboard can be generally fixed on a wall surface, multiple using requirements of people cannot be met, the height of the blackboard is fixed, the using area of the blackboard is incomplete due to the fact that silver of part of teachers is high when the blackboard is used, and accordingly the blackboard is wasted, and the foldable movable blackboard for teaching is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding teaching is with removing blackboard to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides a folding teaching is with removing blackboard, includes mainboard and curb plate, the bottom fixedly connected with lift post of mainboard, lift post symmetric distribution is in the bottom of mainboard, the outside sliding connection of lift post has the foundation, the bottom fixedly connected with base of foundation, the left end and the right-hand member of mainboard all rotate and are connected with the hinge, are located left the left end of hinge all rotates with the right-hand member of the hinge that is located the right side and is connected with the curb plate, the inboard equal sliding connection in rear end of mainboard and curb plate has the slider, the rear end of slider is connected with the connecting rod through hinge rotation, is located the curb plate rear the connecting rod passes through hinge rotation with the connecting rod that is located the mainboard rear and is connected.

Preferably, the left side and the right side are fixedly connected with a cross rod between the bottom columns, the left end of the cross rod and the inner side of the right end are fixedly connected with a pin rod, the right end of the pin rod positioned on the left side and the left end of the pin rod positioned on the right side are fixedly connected with a first spring, the first spring is fixedly connected with the cross rod, and the top end of the pin rod is fixedly connected with a pull rod.

Preferably, the inner side of the right end face of the left lifting column and the inner side of the left end face of the right lifting column are both provided with a clamping groove, the left end of the pin rod on the left side penetrates through the right end of the left bottom column and is clamped with the clamping groove, and the right end of the pin rod on the right side penetrates through the left end of the right bottom column and is clamped with the clamping groove.

Preferably, the equal fixedly connected with fixed block of rear end face of mainboard and curb plate, the fixed block symmetric distribution is located the top at the rear end of mainboard and curb plate the top of fixed block and the equal fixedly connected with mount in bottom of the fixed block that is located the below, the inboard of mount is provided with the second spring, second spring and fixed block fixed connection are located the top of second spring with be located the below the equal fixedly connected with slide in bottom of second spring, slide and mount sliding connection are located the top of slide and the equal fixedly connected with round pin piece in bottom of the slide that is located the below, the round pin piece sets up the outside at the connecting rod.

Preferably, the sliding grooves are formed in the inner sides of the rear end faces of the main plate and the side plates, the sliding blocks are arranged in the sliding grooves, and the sliding grooves are symmetrically distributed in the inner sides of the rear ends of the main plate and the side plates.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through components such as mainboard, curb plate, the hinge that set up, can turn to the curb plate through the hinge, make the curb plate fold to the rear of mainboard to realize the folding of device, make things convenient for the removal and the placing of blackboard, thereby make things convenient for the use of blackboard, satisfy under different in service behavior to the different demands of blackboard length, provide the practicality of device.

2. The utility model discloses in, through components such as pin pole, lift post that set up, can adjust the face of blackboard through rising and the reduction of lift post to the person of facilitating the use is to the blackboard, must buy leading to the face to have extravagant current study under the high too high condition of blackboard, makes the use of the person of facilitating the use more of device, increases the utilization ratio of blackboard face.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a rear view of the main board of the present invention;

FIG. 4 is a schematic view of the structure at B of FIG. 3 according to the present invention

Fig. 5 is a top view of the main board of the present invention.

In the figure: 1-main board, 2-side board, 3-lifting column, 4-bottom column, 5-base, 6-cross bar, 7-pin rod, 8-pull rod, 9-first spring, 10-hinge, 11-fixed block, 12-second spring, 13-fixed frame, 14-sliding plate, 15-pin block, 16-sliding block and 17-connecting rod.

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.

Referring to fig. 1-5, the present invention provides a technical solution:

a foldable movable blackboard for teaching comprises a main board 1 and side boards 2, wherein the bottom end of the main board 1 is fixedly connected with a lifting column 3, the height of the main board 1 can be adjusted through the lifting column 3, the lifting columns 3 are symmetrically distributed at the bottom end of the main board 1, the outer side of the lifting column 3 is slidably connected with a bottom column 4, the bottom end of the bottom column 4 is fixedly connected with a base, the left end and the right end of the main board 1 are both rotatably connected with a hinge 10, the left end of the hinge 10 positioned on the left side and the right end of the hinge 10 positioned on the right side are both rotatably connected with the side boards 2, the side boards 2 can be rotated to the rear side of the main board 1 through the hinges 10, the inner sides of the rear ends of the main board 1 and the side boards 2 are both slidably connected with a sliding block 16, the rear end of the sliding block 16 is rotatably connected with a connecting rod 17 through a hinge, and the arrangement limits, the connecting rod 17 positioned behind the side plate 2 is rotatably connected with the connecting rod 17 positioned behind the main plate 1 through a hinge.

A cross rod 6 is fixedly connected between the bottom posts 4 positioned on the left side and the right side, pin rods 7 are fixedly connected on the inner sides of the left end and the right end of the cross rod 6, a first spring 9 is fixedly connected on the right end of the left pin rod 7 and the left end of the pin rod 7 positioned on the right side, the first spring 9 is fixedly connected with the cross rod 6, a pull rod 8 is fixedly connected with the top end of the pin rod 7, the pin rod 7 can be clamped with the lifting post 3 through the first spring 9, the sliding of the pin rod 7 is facilitated through the pull rod 8, clamping grooves are respectively formed in the inner sides of the right end surface of the lifting post 3 positioned on the left side and the inner side of the left end surface of the lifting post 3 positioned on the right side, the left end of the pin rod 7 positioned on the left side penetrates through the right end of the bottom post 4 positioned on the left side and is clamped with the clamping grooves, the right end of the pin rod 7, the arrangement is characterized in that the pin rod 7 can limit the lifting column 3 in a manner of clamping the pin rod 7 with the clamping groove, so as to realize the adjustment of the height of the main board 1, the rear end surfaces of the main board 1 and the side board 2 are fixedly connected with fixed blocks 11, the fixed blocks 11 are symmetrically distributed at the rear ends of the main board 1 and the side board 2, the top end of the fixed block 11 positioned above and the bottom end of the fixed block 11 positioned below are fixedly connected with fixed frames 13, the inner side of the fixed frame 13 is provided with a second spring 12, the second spring 12 is fixedly connected with the fixed block 11, the top end of the second spring 12 positioned above and the bottom end of the second spring 12 positioned below are fixedly connected with sliding plates 14, the sliding plates 14 are slidably connected with the fixed frames 13, and the top end of the sliding plate 14 positioned above and the bottom end of the sliding plate 14 positioned below are fixedly connected with, the round pin piece 15 sets up in the outside of connecting rod 17, and this kind of setting is spacing through round pin piece 15 to connecting rod 17 to make the device can not rotate opening posterior lateral plate 2, the spout has all been seted up to mainboard 1 and curb plate 2's rear end face inboard, slider 16 sets up in the spout, spout symmetric distribution is inboard at the rear end of mainboard 1 and curb plate 2, and this kind of setting makes slider 16's slip more convenient, avoids 16 squints of slider to lead to the unable folding phenomenon of device.

The working process is as follows: in the utility model, the device is fixed by the base, the mainboard 1 is lifted upwards to drive the lifting column 3 to slide in the bottom column 4, the height of the mainboard 1 is raised, after the mainboard 1 is adjusted to a proper height, the pin 7 slides in the cross rod 6 under the elastic force of the first spring 9 and is clamped with the clamping groove arranged at the inner side of the lifting column 3, thereby realizing the fixation of the height of the mainboard 1, the pull rod 8 is pulled to slide the pin 7 until the pin 7 is not clamped with the clamping groove in the lifting column 3, at the moment, under the action of gravity, the mainboard 1 and the lifting column 3 move downwards, thereby reducing the height of the mainboard 1, realizing the adjustment of the height of the mainboard 1, facilitating the use of the device, the pin block 15 at the upper part slides downwards, the pin block 15 at the lower part slides upwards, the pin block 15 is not arranged at the outer side of the connecting rod 17 any more, at the moment, the adjacent connecting rod 17 can be relatively rotated, the sliding block 16 slides to the other side of the sliding groove, the side plate 2 is rotated to the rear side of the main plate 1 through the hinge 10, the folding of the device is achieved, when the device needs to be opened, the side plate 2 is rotated through the hinge 10, the front end face of the side plate 2 and the front end face of the main plate 1 are located on the same plane, then the pin block 15 above the side plate slides downwards, the pin block 15 below the side plate slides upwards, the sliding block 16 slides, two connecting rods 17 between the sliding blocks 16 are made to be in a shape like a Chinese character 'yi', the pin block 15 is loosened, the sliding plate 14 slides in the fixing frame 13 under the elastic force of the second spring 12 until the pin block 15 is arranged on the outer side of the connecting rods 17, the connecting rods 17 are limited, and therefore the.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a folding teaching is with removing blackboard, includes mainboard (1) and curb plate (2), its characterized in that: bottom fixedly connected with lift post (3) of mainboard (1), lift post (3) symmetric distribution is in the bottom of mainboard (1), the outside sliding connection of lift post (3) has foundation (4), the bottom fixedly connected with base of foundation (4), the left end and the right-hand member of mainboard (1) all rotate and are connected with hinge (10), are located left the left end of hinge (10) all rotate with the right-hand member that is located hinge (10) on right side and are connected with curb plate (2), mainboard (1) and the inboard equal sliding connection of rear end of curb plate (2) have slider (16), the rear end of slider (16) rotates through the hinge and is connected with connecting rod (17), is located curb plate (2) rear connecting rod (17) and connecting rod (17) that are located mainboard (1) rear pass through the hinge rotation and are connected.

2. A foldable movable teaching blackboard according to claim 1, wherein: be located the left and right sides fixedly connected with horizontal pole (6) between sill post (4), the left end and the equal fixedly connected with pin rod (7) of right-hand member inboard of horizontal pole (6) are located left the right-hand member of pin rod (7) and the equal fixedly connected with first spring (9) in the left end of pin rod (7) that are located the right side, first spring (9) and horizontal pole (6) fixed connection, the top fixedly connected with pull rod (8) of pin rod (7).

3. A foldable movable teaching blackboard according to claim 2, wherein: the left side is located the draw-in groove has all been seted up to the right end inboard of the right end face of lift post (3) and the left end face inboard of lift post (3) that is located the right side, is located the left side the left end of pin rod (7) run through the right-hand member that is located left sill pillar (4) and with the draw-in groove block, is located the right side the right-hand member of pin rod (7) run through the left end that is located sill pillar (4) on right side and with the draw-in groove block.

4. A foldable movable teaching blackboard according to claim 1, wherein: the rear end faces of the main board (1) and the side boards (2) are fixedly connected with fixing blocks (11), the fixing blocks (11) are symmetrically distributed at the rear ends of the main board (1) and the side board (2), the top end of the fixing block (11) positioned above and the bottom end of the fixing block (11) positioned below are both fixedly connected with fixing frames (13), a second spring (12) is arranged on the inner side of the fixed frame (13), the second spring (12) is fixedly connected with the fixed block (11), the top end of the second spring (12) positioned above and the bottom end of the second spring (12) positioned below are both fixedly connected with a sliding plate (14), the sliding plate (14) is connected with the fixed frame (13) in a sliding mode, the top end of the sliding plate (14) located above and the bottom end of the sliding plate (14) located below are fixedly connected with the pin block (15), and the pin block (15) is arranged on the outer side of the connecting rod (17).

5. A foldable movable teaching blackboard according to claim 1, wherein: the rear end face of mainboard (1) and curb plate (2) is inboard all seted up the spout, slider (16) set up in the spout, the spout symmetric distribution is inboard at the rear end of mainboard (1) and curb plate (2).