CN218594028U

CN218594028U - Stable firm blackboard

Info

Publication number: CN218594028U
Application number: CN202222833974.0U
Authority: CN
Inventors: 李向宏
Original assignee: Suzhou Suyang Architectural Decoration Engineering Co ltd
Current assignee: Suzhou Suyang Architectural Decoration Engineering Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-10
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a stabilize firm type blackboard relates to teaching articles for use technical field. The key points of the technical scheme are as follows: including the wall body, fixedly connected with is used for the support frame of fixed blackboard on the wall body, rotates on the support frame and is connected with the fixed plate, has seted up a plurality of guide slots in the support frame, and sliding connection has drive fixed plate pivoted drive division in the guide slot, and the drive division includes input and output that the transmission is connected, output and fixed plate fixed connection, and when the input slides to the direction of keeping away from each other, the output rotates to the direction that is close to the drive division, the utility model discloses a set up impeller one and two promotion drive divisions of impeller and make its joint to the blackboard of realizing, receive the striking and rock when avoiding the blackboard to fix on the wall body, guaranteed the stable installation of blackboard on the wall body.

Description

Stable firm blackboard

Technical Field

The utility model relates to a teaching articles for use technical field, more specifically say, it relates to a stabilize firm type 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 the like, and can be written on by using specific writing materials such as chalk and the like.

The existing blackboard is installed by firstly processing a wall surface for installing the blackboard to be flat, then placing the blackboard at an appointed installation position, placing steel nails in reserved installation holes of each blackboard, tapping a hammer on the wall surface to leave marks, taking down the blackboard after the installation position is determined, punching holes along the prepared marks and knocking bolts into the holes, corresponding the reserved installation holes of the blackboard to bolts knocked into the wall surface, and then twisting self-tapping screws into the bolts to realize the installation of the blackboard.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a stabilize firm type blackboard reaches the purpose of firm installation fixed blackboard fast through setting up of structure.

The above technical purpose of the present invention can be achieved by the following technical solutions: this stabilize firm type blackboard, including the wall body, fixedly connected with is used for the support frame of fixed blackboard on the wall body, it is connected with the fixed plate to rotate on the support frame, a plurality of guide ways have been seted up in the support frame, sliding connection has drive fixed plate pivoted drive division in the guide way, the drive division includes input and the output that the transmission is connected, output and fixed plate fixed connection work as when the input slides to the direction of keeping away from each other, the output rotates to the direction of being close to the drive division.

The utility model discloses further set up to: the input sets up to the rack, the output sets up to the rotation wheel with rack toothing, it rotates to connect in the guide way to rotate the wheel, the periphery wall and the fixed plate fixed connection of rotation wheel.

The utility model discloses further set up to: the supporting frame is internally provided with a holding tank communicated with the guide groove, a first pushing piece and a second pushing piece which are perpendicular to each other are arranged in the holding tank, two ends, close to each other, of the first pushing piece and the second pushing piece are respectively arranged to be a fixed end and a movable end, the distance between two ends, far away from the second pushing piece, of the first pushing piece is inversely proportional to the distance between the movable end and the fixed end, and the distance between two ends, far away from the first pushing piece, of the second pushing piece is inversely proportional to the distance between the movable end and the fixed end.

The utility model discloses further set up to: the first pushing part and the second pushing part both comprise a plurality of pushing rods which are hinged with each other, the cross sections of the first pushing part and the second pushing part are in a diamond shape, and one ends, close to the guide groove, of the adjacent pushing rods are rotatably connected with the rack.

The utility model discloses further set up to: and the joint of the first pushing piece and the second pushing piece is rotationally connected with a plurality of universal balls.

The utility model discloses further set up to: one side of the fixed plate, which is far away from the rotating wheel, is fixedly connected with a clamping plate with an arc-shaped section.

The utility model discloses further set up to: the supporting frame is provided with a sliding groove at one end far away from the wall body, and the first pushing part and the movable end of the second pushing part are fixedly connected with a pressing block in sliding connection in the sliding groove.

To sum up, the utility model discloses following beneficial effect has: the blackboard fixing device has the advantages that thrust is applied to the pressing block to enable the movable ends of the first pushing piece and the second pushing piece to slide towards the direction close to the wall, the first pushing piece is far away from two ends of the second pushing piece, the two ends of the second pushing piece, far away from the first pushing piece, slide towards the direction close to the guide groove, the driving portion is applied with the thrust and drives the fixing plate to rotate towards the direction close to the blackboard, clamping of the blackboard is achieved, when the blackboard needs to be installed, the blackboard is fixed by enabling the blackboard to face the wall to push the pressing block, short time is needed in the process of installing the blackboard, fewer processes are needed, fewer operators are needed for installation, working efficiency is guaranteed, labor intensity is reduced, the contact area of the fixing plate and the blackboard is increased through the clamping plate, the phenomenon that the blackboard drops from the wall is avoided, and stable fixing of the blackboard on the support frame is guaranteed.

Drawings

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

fig. 2 is a first cross-sectional view of the present invention;

fig. 3 is a second cross-sectional view of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3.

In the figure: 1. a wall body; 2. a support frame; 3. a fixing plate; 4. a guide groove; 5. a rack; 6. a rotating wheel; 7. accommodating grooves; 8. a first pushing piece; 9. a second pushing member; 10. a push rod; 11. a universal ball; 12. a clamping plate; 13. a chute; 14. and pressing the block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

This stabilize firm type blackboard, as shown in fig. 1 and fig. 2, including wall body 1 and support frame 2, support frame 2 passes through the bolt fastening on wall body 1, it is connected with fixed plate 3 to rotate on the support frame 2, a plurality of guide ways 4 have been seted up in the support frame 2, sliding connection has 3 pivoted drive parts of drive fixed plate in the guide way 4, the drive part includes input and the output that the transmission is connected, the output bonds with fixed plate 3, when the input slides to the direction of keeping away from each other, the output rotates to the direction that is close to the drive part, the input sets up to rack 5, the output sets up to the rotation wheel 6 with rack 5 meshing, it connects in guide way 4 to rotate wheel 6, the periphery wall and the fixed plate 3 fixed connection of rotation wheel 6.

As shown in fig. 1 and 2, a placing groove is formed on the inner wall of the guide groove 4 in an inward concave manner, a rotating shaft is bonded on the side wall of the guide groove 4, the rotating wheel 6 is rotatably connected to the rotating shaft, a sliding shaft is bonded on one side of the rack 5 close to the guide groove 4, when one end of the rack 5 close to each other slides along the guide groove 4 in a direction away from each other, the rack 5 slides to drive the rotating wheel 6 engaged with the rack 5 to rotate clockwise, the rotating wheel 6 rotates clockwise and drives the fixing plate 3 bonded on the rotating wheel 6 to rotate in a direction close to the blackboard, thereby realizing the fixing of the blackboard, the guide groove 4 provides a movement space for the gear and the rotating shaft, the guide groove 4 has a guiding function when the rack 5 slides, the rack 5 is ensured to slide along the height of the guide groove 4, the phenomenon that the rack 5 is deviated during sliding is avoided, so that the clamping with the rotating wheel 6 is lost, the normal movement of the rack 5 and the rotating wheel 6 is ensured, and the fixing of the fixing plate 3 to the blackboard can be realized through the rotation of the rotating wheel 6.

As shown in fig. 1 to 3, an accommodating groove 7 communicated with the guide groove 4 is formed in the support frame 2, a first pushing part 8 and a second pushing part 9 which are perpendicular to each other are arranged in the accommodating groove 7, two ends of the first pushing part 8, which are close to the second pushing part 9, are respectively set as a fixed end and a movable end, a distance between two ends of the first pushing part 8, which are far away from the second pushing part 9, is inversely proportional to a distance between the movable end and the fixed end, a distance between two ends of the second pushing part 9, which are far away from the first pushing part 8, is inversely proportional to a distance between the movable end and the fixed end, the first pushing part 8 and the second pushing part 9 both include a plurality of push rods 10 which are hinged to each other, the first pushing part 8 and the second pushing part 9 are in a diamond shape in cross section, and one ends of the plurality of adjacent push rods 10, which are close to each other and close to the guide groove 4, are rotatably connected with the rack 5.

As shown in fig. 1-3, the communication between the accommodating groove 7 and the guide groove 4 can ensure that the first pushing member 8 and the second pushing member 9 can push the rack 5 to slide in the direction away from each other in the moving process, the fixed ends of the first pushing member 8 and the second pushing member 9 are bonded on the inner wall of the accommodating groove 7, when people need to fix a blackboard on the support frame 2, the blackboard applies pressure to the movable ends of the first pushing member 8 and the second pushing member 9 to make the first pushing member 8 and the second pushing member 9 slide in the direction close to the inner wall of the accommodating groove 7, the sliding of the movable ends of the first pushing member 8 and the second pushing member 9 drives the end, close to each other, of the adjacent pushing rod 10 to slide in the direction close to the guide groove 4, the sliding of the adjacent pushing rod 10 applies thrust to the bonded rack 5 to make the bonded rack 5 slide in the direction away from the accommodating groove 7, the sliding of the rack 5 drives the rotating wheel 6 to rotate, the fixed plate 3 is bonded to the blackboard through the rotation of the rotating wheel 6, when people apply thrust to the fixed plate 3 to reset the pushing member 3, the fixed plate 3 applies thrust to the rotating wheel 6 to make the pushing member 5 to rotate in the rotating wheel 6, the pushing member 5 drives the rack 5 to clockwise, the sliding of the pushing member 5 to apply the connecting end of the sliding of the pushing member 5, and the sliding of the second pushing member 9, so that the sliding of the pushing member 5 and the sliding of the rack 9, and the movable end of the sliding of the rack 5, thereby making the rack 5 to make the support frame 2, and the sliding of the sliding rack 5, and the movable end of the movable member 2, and the movable end of the moving member 2, and the moving member 2, so as to realize the sliding of the moving plate, and the moving of the moving member 5, the moving of the moving plate.

As shown in fig. 1, 2 and 4, a plurality of universal balls 11 are rotatably connected at the joint of a first pushing part 8 and a second pushing part 9, a clamping plate 12 with an arc-shaped cross section is fixedly connected at one side of a fixed plate 3 far away from a rotating wheel 6, the outer peripheral wall of each universal ball 11 is bonded with one end, close to a containing groove 7, of a rack 5, when the first pushing part 8 and the second pushing part 9 slide in the direction close to a guide groove 4, the included angle between the joint of the first pushing part 8 and the second pushing part 9 is increased, the contact area between the joint of the first pushing part 8 and the second pushing part 9 and the rack 5 is small, and force for enabling the rack 5 to slide is difficult to apply to the rack 5, the universal ball 11 is set to provide a rotating space for the movement of the joint of the first pushing part 8 and the second pushing part 9, the clamping plate 12 is bonded with the fixed plate 3, the contact area between the fixed plate 3 and a blackboard is increased by the clamping plate 12, a rubber pad is sleeved on the outer peripheral wall of the clamping plate 12, the rubber pad increases the friction force between the clamping plate 12 and the blackboard, and ensures the fixing effect of the support frame 2 on the blackboard.

As shown in fig. 1, fig. 2 and fig. 4, a sliding groove 13 is formed in one end of the support frame 2, which is far away from the wall 1, a pressing block 14, which is connected in the sliding groove 13 in a sliding manner, is bonded to the movable end of the first pushing element 8 and the second pushing element 9, one end, which is far away from the first pushing element 8, of the pressing block 14 penetrates out of the support frame 2, the sliding groove 13 plays a guiding role in sliding of the pressing block 14, when people apply thrust to the pressing block 14, it can be guaranteed that the pressing block 14 horizontally slides along the sliding groove 13, the contact area between people and the movable end is increased by the pressing block 14, and people can apply thrust for sliding to the movable end conveniently.

The working principle is as follows: the support frame 2 is fixed on the wall 1 through bolts, at the moment, the support frame 2 is in an initial state, when people need to fix the blackboard on the support frame 2, the blackboard applies thrust to the pressing block 14 to enable the pressing block to slide towards the direction close to the accommodating groove 7 along the sliding groove 13, the movable ends of the first pushing piece 8 and the second pushing piece 9 are subjected to the thrust applied to the pressing block 14 to slide towards the direction close to the accommodating groove 7, the sliding of the movable ends of the first pushing piece 8 and the second pushing piece 9 drives the end, connected with the universal ball 11 in a rotating mode, of the first pushing piece 8 and the second pushing piece 9 to slide towards the direction close to the guide groove 4, the sliding of the universal ball 11 applies thrust to the rack 5 to enable the rack 5 to slide towards the direction close to the rotating wheel 6, the rack 5 slides to drive the rotating wheel 6 meshed with the rack 5 to rotate clockwise, the rotating wheel 6 rotates to drive the fixing plate 3 and the clamping plate 12 to rotate towards the direction close to the blackboard, so as to fix the blackboard, when people need to take the blackboard out of the support frame 2, the clamping plate 12 is shifted to rotate towards the direction far away from the blackboard, the rotation of the clamping plate 12 drives the rotating wheel 6 to rotate anticlockwise, the rotating wheel 6 drives the rack 5 meshed with the rotating wheel to slide towards the direction close to the accommodating groove 7 along the guide groove 4, the sliding of the rack 5 applies thrust to the universal ball 11 to enable the universal ball to slide towards the direction close to each other, the movable ends of the pushing piece I8 and the pushing piece II 9 slide towards the direction far away from the fixed end under the thrust applied to the pushing rod 10 in the sliding process, the pressing block 14 receives the thrust applied to the movable ends of the pushing piece I8 and the pushing piece II 9 to slide towards the direction penetrating out of the support frame 2 along the sliding groove 13, the blackboard receives the thrust applied to the pressing block 14 to the blackboard to slide towards the direction far away from the wall body 1 to enable the blackboard to lose the fixation with the clamping plate 12, thereby taking out the blackboard from the support frame 2.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stabilize firm type blackboard, includes wall body (1), its characterized in that: fixedly connected with is used for support frame (2) of fixed blackboard on wall body (1), it is connected with fixed plate (3) to rotate on support frame (2), a plurality of guide ways (4) have been seted up in support frame (2), sliding connection has drive fixed plate (3) pivoted drive division in guide way (4), the drive division is including the input and the output that the transmission is connected, output and fixed plate (3) fixed connection work as when the input slides to the direction of keeping away from each other, the output rotates to the direction that is close to the drive division.

2. The stabilized and secured blackboard according to claim 1, wherein: the input sets up to rack (5), the output sets up to rotation wheel (6) with rack (5) meshing, rotate wheel (6) and rotate and connect in guide way (4), the periphery wall and fixed plate (3) fixed connection that rotate wheel (6).

3. The stabilized and secured blackboard according to claim 2, characterised in that: the supporting frame (2) is internally provided with an accommodating groove (7) communicated with the guide groove (4), a first pushing piece (8) and a second pushing piece (9) which are perpendicular to each other are arranged in the accommodating groove (7), two ends, close to each other, of the first pushing piece (8) and the second pushing piece (9) are respectively arranged as a fixed end and a movable end, the distance between two ends, far away from the second pushing piece (9), of the first pushing piece (8) is inversely proportional to the distance between the movable end and the fixed end, and the distance between two ends, far away from the first pushing piece (8), of the second pushing piece (9) is inversely proportional to the distance between the movable end and the fixed end.

4. The stabilized and secured blackboard according to claim 3, characterised in that: the pushing member I (8) and the pushing member II (9) respectively comprise a plurality of pushing rods (10) which are hinged to each other, the cross sections of the pushing members I (8) and the pushing members II (9) are in a diamond shape, and one ends, close to the guide groove (4), of the adjacent pushing rods (10) are rotatably connected with the rack (5).

5. The stabilized and secured blackboard according to claim 3, characterised in that: the joint of the first pushing piece (8) and the second pushing piece (9) is rotatably connected with a plurality of universal balls (11).

6. The stabilized and secured blackboard according to claim 2, characterised in that: one side of the fixed plate (3) far away from the rotating wheel (6) is fixedly connected with a clamping plate (12) with an arc-shaped section.

7. The stabilized and secured blackboard according to claim 3, characterised in that: a sliding groove (13) is formed in one end, far away from the wall body (1), of the support frame (2), and a pressing block (14) which is connected into the sliding groove (13) in a sliding mode is fixedly connected with the movable ends of the first pushing piece (8) and the second pushing piece (9).