CN216907345U

CN216907345U - Anti-shaking device for teaching writing board

Info

Publication number: CN216907345U
Application number: CN202122624367.9U
Authority: CN
Inventors: 唐林; 杨欢欢; 黄瑜佳; 钟伟斌; 方伟彬
Original assignee: Guangxi Zhongpei Optoelectronics Technology Co ltd
Current assignee: Guangxi Zhongpei Optoelectronics Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-07-08
Anticipated expiration: 2031-10-29

Abstract

The utility model belongs to the technical field of writing boards, in particular to an anti-shaking device for a teaching writing board, which aims at solving the problems that the writing board is placed on a human-shaped frame and then is inclined backwards to fix the writing board in the prior art, but the fixing mode is not firm enough, the shaking of the writing board can be caused during writing, the writing speed can be greatly influenced, and certain influence can be caused on teaching, and the utility model provides the following scheme that the anti-shaking device comprises a support box, the four corners of the bottom of the support box are fixedly connected with support legs, the bottom of the support box is fixedly connected with a lower clamping plate, a driving motor is fixedly connected on the inner wall of the rear side of the support box, two first rotating rods are fixedly connected on an output shaft of the driving motor, and sliding holes are formed in the two first rotating rods, so that the position of the writing board is fixed through a simple structure, and the shaking of the writing board is avoided, the stability of the device is improved, the operation is convenient, the time and the labor are saved, and the practicability is strong.

Description

Anti-shaking device for teaching writing board

Technical Field

The utility model relates to the technical field of writing boards, in particular to an anti-shaking device for a teaching writing board.

Background

The thickness of the writing board is about 0.2mm, 5 layers of special materials are synthesized by a high-tech method, and 5 layers are combined into a whole, so that the writing board has distinctive characteristics. The reflectivity of the projection screen is improved by 20 percent compared with the reflectivity of a common projection screen, so that the image is brighter and clearer, the projection brightness is obviously improved, and the troubles of turning off the lamp and turning off the window are avoided. Dust is eliminated comprehensively, the writing brush is environment-friendly and healthy, the handwriting is clearer, and the writing is smoother. The grid writing surface is preset, so that beautiful forms and figures can be formed on the surface of the pen conveniently without the help of tools.

The writing board has the function of one board for multiple purposes, has the main functions of projection, dust-free writing and the like, and is mainly used for teaching. At present, in-process in the clipboard uses, place the clipboard on people's type frame to the rigidity of clipboard, then make its angle incline backward to come to fix the clipboard, but this kind of fixed mode is not firm enough, can lead to rocking of clipboard when writing, can influence writing speed greatly, also can cause certain influence to the teaching. Therefore, the shaking prevention device for the teaching writing board is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, a writing board is placed on a human-shaped frame, and then the writing board is fixed by inclining the writing board at a backward angle, but the fixing mode is not stable enough, the writing board shakes during writing, the writing speed is greatly influenced, and certain influence is caused on teaching.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a teaching writing board anti-shaking device comprises a supporting box, wherein four corners of the bottom of the supporting box are fixedly connected with supporting legs, the bottom of the supporting box is fixedly connected with a lower clamping plate, a driving motor is fixedly connected to the inner wall of the rear side of the supporting box, two first rotating rods are fixedly connected to the output shaft of the driving motor, sliding holes are formed in the two first rotating rods, first baffle shafts are respectively and slidably connected in the two sliding holes, pushing rods are respectively and fixedly connected to the two first baffle shafts, the ends, away from each other, of the two pushing rods respectively penetrate through the inner wall of the left side and the inner wall of the right side of the supporting box and extend to the outer part of the supporting box, the ends, away from each other, of the two pushing rods are respectively and rotatably connected with a swinging rod, the fixed rods are respectively and fixedly connected to the left side and the right side of the supporting box, the ends, away from each other, of the two fixed rods are respectively and fixedly connected with a second baffle shaft, rectangular holes are formed in the two swinging rods, the front end that the second kept off the axle runs through rather than corresponding rectangular hole and with rectangular hole sliding connection, the equal fixedly connected with side cardboard of one end that the supporting box was kept away from to two swinging arms, the equal fixedly connected with hydraulic stem in one side that two side cardboards are close to the supporting box, the one end that two hydraulic stems are close to each other is connected with the left side and the right side of supporting box respectively, the top of supporting box is provided with fixture, fixture is connected with driving motor.

Preferably, the equal fixedly connected with slider of one end that two hydraulic stems are close to each other, the spout has all been seted up on the left side and the right side of supporting box, slider sliding connection is in rather than corresponding spout, and it is spacing through the slip between slider and the spout, can make the stable the sliding that slides of hydraulic stem.

Preferably, the clamping mechanism comprises a second rotating rod, a third blocking shaft, a top rod, an auxiliary rod, a mounting plate and an upper clamping plate, the right end of the second rotating rod is fixedly connected to an output shaft of the driving motor, the second rotating rod is provided with an auxiliary hole, the front end of the third blocking shaft penetrates through the auxiliary hole and is in sliding connection with the auxiliary hole, the rear end of the third blocking shaft is fixedly connected with the bottom end of the top rod, the top end of the top rod penetrates through the inner wall of the top of the supporting box and extends to the upper part of the supporting box, the bottom of the mounting plate is fixedly connected to the top of the supporting box, the top end of the top rod is rotatably connected with the left end of the auxiliary rod, the auxiliary rod is connected with the front side of the mounting plate, the right end of the auxiliary rod is rotatably connected with the left side of the upper clamping plate, the bottom of the upper clamping plate is connected with the top of the supporting box, and transmission between the driving motor and the upper clamping plate is realized, can drive the upper clamping plate to move downwards.

Preferably, the front side fixedly connected with fourth of mounting panel keeps off the axle, the mating holes has been seted up on the auxiliary rod, the front end that the fourth kept off the axle run through the mating holes and with mating holes sliding connection, through the fourth keep off the slip between axle and the mating holes spacing, be convenient for carry out the transmission between ejector pin and the last cardboard when carrying out rotation support to the auxiliary rod.

Preferably, the bottom fixedly connected with buffer spring of going up the cardboard, buffer spring's bottom and the top sliding connection who supports the case can assist upward the cardboard and remove the restoration through setting up buffer spring.

Preferably, buffer spring's bottom fixedly connected with strop cable, the slide has been seted up on the top inner wall of supporting box, strop cable sliding connection is in the slide, and it is spacing through the slip between strop cable and the slide, can make buffer spring remain throughout and carry out the outrigger to last cardboard.

Has the advantages that: the two side clamping plates can be driven to mutually approach and respectively clamp the left side and the right side of the writing board through transmission between the driving motor and the two side clamping plates, and the two side clamping plates can be stably movably supported by arranging two hydraulic rods and sliding limit matching between the sliding block and the sliding groove, so that the two side clamping plates can be stably clamped into frames on two sides of the writing board, and the position fixing of two side surfaces of the writing board is finished at the moment, so that the writing board is very stable and cannot move;

the upper clamping plate can be driven to move downwards through transmission between the driving motor and the upper clamping plate, the upper clamping plate can clamp an upper frame of the writing board, the upper clamping plate can move more stably through arrangement of a buffer spring and sliding limiting fit between a sliding rope and a sliding way, the upper side of the writing board is fixed, the stability of the writing board can be improved through the fixing of the upper side of the writing board, the writing board is prevented from shaking during writing, and teaching cannot be influenced;

the writing board fixing device realizes the fixation of the writing board through a simple structure, avoids the shaking of the writing board during writing, improves the stability of the writing board, and has convenient operation, time and labor saving and strong practicability.

Drawings

FIG. 1 is a main sectional view of a structure of an anti-shaking device for a teaching writing board according to the present invention;

FIG. 2 is a schematic structural view of part A in FIG. 1 of an anti-shaking device for a teaching writing board according to the present invention;

FIG. 3 is a schematic structural view of a portion B in FIG. 1 of an anti-shaking device for a teaching writing board according to the present invention;

FIG. 4 is a three-dimensional diagram of the structure of the side clamping plate and the hydraulic rod of the anti-shaking device for the teaching writing plate provided by the utility model.

In the figure: the support box comprises a support box 1, a support leg 2, a lower clamping plate 3, a driving motor 4, a first rotating rod 5, a sliding hole 6, a first blocking shaft 7, a pushing rod 8, a swinging rod 9, a fixing rod 10, a rectangular hole 11, a second blocking shaft 12, a side clamping plate 13, a hydraulic rod 14, a sliding block 15, a sliding chute 16, a second rotating rod 17, an auxiliary hole 18, a third blocking shaft 19, a top rod 20, an auxiliary rod 21, a matching hole 22, a fourth blocking shaft 23, a mounting plate 24, an upper clamping plate 25, a buffer spring 26, a sliding rope 27 and a sliding way 28.

Detailed Description

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

Referring to fig. 1-4, a teaching clipboard anti-sway device, including supporting box 1, the equal fixedly connected with landing leg 2 in bottom four corners position of supporting box 1, landing leg 2 can support supporting box 1, also can improve the height of clipboard simultaneously, cardboard 3 under the bottom fixedly connected with of supporting box 1, cardboard 3 can lift with the bottom of clipboard down, fixedly connected with driving motor 4 on the rear side inner wall of supporting box 1, two first bull sticks 5 of fixedly connected with on driving motor 4's the output shaft, sliding hole 6 has all been seted up on two first bull sticks 5, equal sliding connection has first fender axle 7 in two sliding hole 6, through the spacing cooperation of slip between first fender axle 7 and sliding hole 6, can be convenient for carry out the transmission between first bull stick 5 and the catch bar 8, equal fixedly connected with catch bar 8 on two first fender axles 7, the one end that two catch bars 8 kept away from each other runs through supporting box 1's left side inner wall and right side inner wall respectively and extends to supporting box 1 and supports to support the inner wall Outside the box 1, the ends of the two push rods 8 far away from each other are rotatably connected with swing rods 9, the left side and the right side of the supporting box 1 are fixedly connected with fixed rods 10, the fixed rods 10 can rotatably support the swing rods 9, the ends of the two fixed rods 10 far away from each other are fixedly connected with second baffle shafts 12, rectangular holes 11 are respectively formed in the two swing rods 9, the front ends of the second baffle shafts 12 penetrate through the corresponding rectangular holes 11 and are in sliding connection with the rectangular holes 11, the ends of the two swing rods 9 far away from the supporting box 1 are fixedly connected with side clamping plates 13, the two side clamping plates 13 can clamp and fix the left side and the right side of a writing board, one sides of the two side clamping plates 13 close to the supporting box 1 are fixedly connected with hydraulic rods 14, the hydraulic rods 14 can movably support the side clamping plates 13, the ends of the two hydraulic rods 14 close to each other are respectively connected with the left side and the right side of the supporting box 1, the top of the supporting box 1 is provided with a clamping mechanism which is connected with a driving motor 4; the sliding blocks 15 are fixedly connected to the ends, close to each other, of the two hydraulic rods 14, the sliding grooves 16 are formed in the left side and the right side of the supporting box 1, the sliding blocks 15 are connected in the corresponding sliding grooves 16 in a sliding mode, and the hydraulic rods 14 can stably slide through sliding limiting between the sliding blocks 15 and the sliding grooves 16;

the clamping mechanism comprises a second rotating rod 17, a third baffle shaft 19, an ejector rod 20, an auxiliary rod 21, a mounting plate 24 and an upper clamping plate 25, the right end of the second rotating rod 17 is fixedly connected to the output shaft of the driving motor 4, the second rotating rod 17 is provided with an auxiliary hole 18, the front end of the third baffle shaft 19 penetrates through the auxiliary hole 18 and is in sliding connection with the auxiliary hole 18, the rear end of the third baffle shaft 19 is fixedly connected with the bottom end of the ejector rod 20, the top end of the ejector rod 20 penetrates through the inner wall of the top of the supporting box 1 and extends to the upper side of the supporting box 1, the bottom of the mounting plate 24 is fixedly connected to the top of the supporting box 1, the mounting plate 24 can stably support the fourth baffle shaft 23, the top end of the ejector rod 20 is rotatably connected with the left end of the auxiliary rod 21, the auxiliary rod 21 is connected with the front side of the mounting plate 24, the right end of the auxiliary rod 21 is rotatably connected with the left side of the upper clamping plate 25, the upper clamping plate 25 can clamp the top of the writing board, the bottom of the upper clamping plate 25 is connected with the top of the supporting box 1, and the upper clamping plate 25 can be driven to move downwards through transmission between the driving motor 4 and the upper clamping plate 25; the front side of the mounting plate 24 is fixedly connected with a fourth blocking shaft 23, the auxiliary rod 21 is provided with a matching hole 22, the front end of the fourth blocking shaft 23 penetrates through the matching hole 22 and is in sliding connection with the matching hole 22, and the auxiliary rod 21 can be rotatably supported and the transmission between the ejector rod 20 and the upper clamping plate 25 is facilitated through the sliding limit between the fourth blocking shaft 23 and the matching hole 22; the bottom of the upper clamping plate 25 is fixedly connected with a buffer spring 26, the bottom end of the buffer spring 26 is slidably connected with the top of the supporting box 1, and the buffer spring 26 is arranged to assist the upper clamping plate 25 to move upwards for resetting; the bottom end of the buffer spring 26 is fixedly connected with a sliding cable 27, the inner wall of the top of the supporting box 1 is provided with a slide rail 28, the sliding cable 27 is connected in the slide rail 28 in a sliding manner, and the buffer spring 26 can always stably support the upper clamping plate 25 through sliding limitation between the sliding cable 27 and the slide rail 28.

The working principle is as follows: when the writing board is used, the bottom of the writing board is clamped on the lower clamping plate 3, the rear part of the writing board is attached to the front side of the supporting box 1, the driving motor 4 is started again, when the driving motor 4 rotates, the two first rotating rods 5 are driven to rotate, when the two first rotating rods 5 rotate, the two pushing rods 8 are driven to be away from each other through the sliding limit fit between the first blocking shafts 7 and the sliding holes 6, when the two pushing rods 8 are far away from each other, the two swinging rods 9 are driven to be far away from each other through the support of the two fixing rods 10 and the sliding limit fit between the second blocking shafts 12 and the rectangular holes 11, the ends, far away from the supporting box 1, of the two swinging rods 9 are driven to be close to each other, when the two side clamping plates 13 approach each other, the two side clamping plates 13 can respectively clamp the left side and the right side of the writing board, here, the two side clamping plates 13 can be stably supported in a movable manner by arranging the two hydraulic rods 14 and the sliding spacing fit between the sliding block 15 and the sliding groove 16, so that the two side clamping plates can be stably clamped into the two side frames of the writing board, at this time, the position fixing of the two sides of the writing board is completed, meanwhile, when the driving motor 4 rotates, the second rotating rod 17 is driven to rotate, when the second rotating rod 17 rotates, the ejector rod 20 is driven to move upwards by the sliding spacing fit between the third blocking shaft 19 and the auxiliary hole 18, when the ejector rod 20 moves upwards, the left end of the auxiliary rod 21 is driven to move upwards by the sliding spacing fit between the fourth blocking shaft 23 and the matching hole 22 and the rotary support of the auxiliary rod 21 by the fourth blocking shaft 23, at this moment auxiliary rod 21's right-hand member can remove downwards, when auxiliary rod 21's right-hand member moves down, can drive last cardboard 25 and move down, at this moment, go up cardboard 25 and just can block the upper portion frame of clipboard, here through setting up the spacing cooperation of slip between buffer spring 26 and strop 27 and the slide 28, the removal that can make last cardboard 25 is more stable, we have just accomplished the rigidity to the upside of clipboard this moment, then we have just realized the upper and lower left and right sides four sides frame rigidity to the clipboard.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The anti-shaking device for the teaching writing board comprises a supporting box (1) and is characterized in that supporting legs (2) are fixedly connected to the positions of four corners of the bottom of the supporting box (1), a lower clamping plate (3) is fixedly connected to the bottom of the supporting box (1), a driving motor (4) is fixedly connected to the inner wall of the rear side of the supporting box (1), two first rotating rods (5) are fixedly connected to an output shaft of the driving motor (4), sliding holes (6) are formed in the two first rotating rods (5), first blocking shafts (7) are slidably connected to the inner walls of the two sliding holes (6), pushing rods (8) are fixedly connected to the two first blocking shafts (7), one ends, far away from each other, of the two pushing rods (8) penetrate through the inner wall of the left side and the inner wall of the right side of the supporting box (1) respectively and extend to the outer portion of the supporting box (1), swinging rods (9) are rotatably connected to one ends, far away from each other of the two pushing rods (8), the left side and the equal fixedly connected with dead lever (10) in right side of supporting box (1), the equal fixedly connected with second of one end that two dead levers (10) kept away from each other keeps off axle (12), rectangular hole (11) have all been seted up on two swinging arms (9), the front end that the second kept off axle (12) run through rather than corresponding rectangular hole (11) and with rectangular hole (11) sliding connection, the equal fixedly connected with side cardboard (13) of one end that supporting box (1) was kept away from in two swinging arms (9), the equal fixedly connected with hydraulic stem (14) in one side that two side cardboard (13) are close to supporting box (1), the one end that two hydraulic stem (14) are close to each other is connected with the left side and the right side of supporting box (1) respectively, the top of supporting box (1) is provided with fixture, fixture is connected with driving motor (4).

2. The anti-shaking device for the teaching writing board according to claim 1, wherein one ends of the two hydraulic rods (14) close to each other are fixedly connected with sliding blocks (15), sliding grooves (16) are formed in the left side and the right side of the supporting box (1), and the sliding blocks (15) are slidably connected in the corresponding sliding grooves (16).

3. The anti-shaking device for the teaching writing board according to claim 1, wherein the clamping mechanism comprises a second rotating rod (17), a third blocking shaft (19), a top rod (20), an auxiliary rod (21), a mounting plate (24) and an upper clamping plate (25), the right end of the second rotating rod (17) is fixedly connected to the output shaft of the driving motor (4), the second rotating rod (17) is provided with an auxiliary hole (18), the front end of the third blocking shaft (19) penetrates through the auxiliary hole (18) and is in sliding connection with the auxiliary hole (18), the rear end of the third blocking shaft (19) is fixedly connected with the bottom end of the top rod (20), the top end of the top rod (20) penetrates through the inner wall of the top of the supporting box (1) and extends above the supporting box (1), the bottom of the mounting plate (24) is fixedly connected with the top of the supporting box (1), and the top end of the top rod (20) is rotatably connected with the left end of the auxiliary rod (21), the auxiliary rod (21) is connected with the front side of the mounting plate (24), the right end of the auxiliary rod (21) is rotatably connected with the left side of the upper clamping plate (25), and the bottom of the upper clamping plate (25) is connected with the top of the supporting box (1).

4. The anti-shaking device for the teaching writing board according to claim 3, wherein a fourth blocking shaft (23) is fixedly connected to the front side of the mounting plate (24), the auxiliary rod (21) is provided with a matching hole (22), and the front end of the fourth blocking shaft (23) penetrates through the matching hole (22) and is slidably connected with the matching hole (22).

5. The anti-shaking device for the teaching writing board according to claim 3, wherein the bottom of the upper clamping board (25) is fixedly connected with a buffer spring (26), and the bottom end of the buffer spring (26) is slidably connected with the top of the supporting box (1).

6. The anti-shaking device for the teaching writing board according to claim 5, wherein a sliding rope (27) is fixedly connected to the bottom end of the buffer spring (26), a sliding way (28) is formed in the inner wall of the top of the supporting box (1), and the sliding rope (27) is slidably connected in the sliding way (28).