CN111736659B

CN111736659B - Remote education auxiliary assembly

Info

Publication number: CN111736659B
Application number: CN202010604626.9A
Authority: CN
Inventors: 吴钰; 李金芳; 袁媛; 张月玥; 刘阳; 冯佳
Original assignee: Zhengzhou Railway Vocational and Technical College
Current assignee: Zhengzhou Railway Vocational and Technical College
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-09-14
Anticipated expiration: 2040-06-29
Also published as: CN111736659A

Abstract

The present invention relates to a remote education auxiliary apparatus; the technical scheme of its solution includes the box, the box opening part articulates there is an apron, first serving wheel of coaxial fixed on the apron articulated shaft, the winding is taken turns to and is fixed with a first rope on the first serving wheel, the right side symmetry of box is equipped with two stands, the inboard of every stand respectively articulates there is a connecting rod, be located coaxial fixedly connected with second serving wheel on the connecting rod on the rear side stand, the free end winding of first rope is fixed on the second serving wheel, the top of box is equipped with a vertical blackboard, the left side of box is equipped with a montant, the right-hand member of montant articulates there is a U-shaped support, the lower extreme of U capable support is equipped with a horizontally atmospheric pressure telescopic link, be equipped with the pneumatic cylinder that a piston can upwards automatic re-setting in the box, pneumatic cylinder and atmospheric pressure telescopic link are through the trachea intercommunication.

Description

Remote education auxiliary assembly

Technical Field

The invention relates to the field of education equipment, in particular to remote education auxiliary equipment.

Background

In the period of new coronary pneumonia epidemic situation, a teacher is required to give lessons to students remotely, and remote education along with the development of the era is a development trend of the era, main equipment of the teacher in the current stage is a mobile phone or a flat board, the camera of the flat board or the mobile phone is used for conducting remote live broadcasting for giving lessons, the teacher needs to stand between a blackboard and the camera when conducting writing on a small blackboard, therefore, a larger interval is needed between the blackboard and the camera, so that the teacher can be guaranteed to have enough space for writing, when the distance between the blackboard and the camera is too large, the factors such as pixels of the camera are limited, the students at the other end of a screen can not see contents on the blackboard clearly, and if the blackboard and the camera are placed close to each other, the teacher can be caused to be incapable of standing at the front end of the blackboard for writing.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the auxiliary equipment for the remote education, which effectively solves the problem that the distance between the blackboard and the camera cannot be adjusted in a self-adaptive manner to match with the teacher's writing and the students to effectively watch and write contents on the blackboard in the remote education at the present stage.

The technical scheme for solving the problems comprises a box body with an opening at the upper end, a cover plate which can seal the opening of the box body is hinged at the opening of the box body, the rear end of the cover plate is hinged on the box body, the front end of the cover plate is tilted and tends to turn upwards around a hinged shaft, a first coiling wheel which is arranged at the right side of the box body is coaxially fixed on the hinged shaft of the cover plate, a first rope is wound and fixed on the first coiling wheel, two upright posts are symmetrically arranged at the front end and the rear end of the right side of the box body, the inner side of each upright post is respectively hinged with a connecting rod, a second coiling wheel is coaxially and fixedly connected on the connecting rod which is arranged on the upright post at the rear side, the free end of the first rope is wound and fixed on the second coiling wheel, a first positioning block which can position the connecting rod when the connecting rod rotates to be horizontal is arranged below each connecting rod, a second positioning block which can position the connecting rod when the connecting rod rotates to be vertical is arranged at the upper end of each upright post, the top of box is equipped with a vertical blackboard, the free end of two connecting rods corresponds the front and back both sides that articulate in the blackboard upper end respectively, the left side of box is equipped with a montant, the right-hand member of montant articulates there is a U-shaped support, the lower extreme of U capable support is equipped with a horizontally atmospheric pressure telescopic link, be equipped with the pneumatic cylinder that a piston can upwards automatic re-setting in the box, pneumatic cylinder and atmospheric pressure telescopic link are through the trachea intercommunication, when pressing apron to horizontal position, first winding wheel has the horizontal position to rotate to vertical position through second winding wheel drive connecting rod, the pneumatic cylinder is pressed simultaneously, atmospheric pressure telescopic link gets gas extension and drives U-shaped support lower extreme around articulated position anticlockwise rotation.

The invention has novel concept, smart structure and strong practicability, and effectively solves the problem that the distance between the blackboard and the camera cannot be adjusted in a self-adaptive manner to match with the teacher's blackboard writing and the students to effectively watch and write contents on the blackboard in the prior stage of distance education.

Drawings

FIG. 1 is a front sectional view of the blackboard of the present invention when it is below.

Figure 2 is a left side sectional view of the blackboard of the present invention when it is below.

Fig. 3 is a front view of the blackboard of the present invention as it is above.

Fig. 4 is a left side view of the blackboard of the present invention as it is above.

Figure 5 is a top view of the blackboard of the present invention, with the blackboard under.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As can be seen from figures 1 to 5, the invention comprises a box body 1 with an opening at the upper end, a cover plate 2 which can close the opening of the box body 1 is hinged at the opening of the box body 1, the rear end of the cover plate 2 is hinged on the box body 1, the front end is tilted and tends to turn upwards around a hinged shaft, a first reel 3 which is arranged at the right side of the box body 1 is coaxially fixed on the hinged shaft of the cover plate 2, a first rope 4 is wound and fixed on the first reel 3, two upright posts 5 are symmetrically arranged at the front and rear ends at the right side of the box body 1, a connecting rod 6 is respectively hinged at the inner side of each upright post 5, a second reel 7 is coaxially and fixedly connected on the connecting rod 6 which is arranged on the upright post 5 at the rear side, the free end of the first rope 4 is wound and fixed on the second reel 7, a first positioning block 8 which can limit the connecting rod 6 when rotating to the horizontal is arranged below each connecting rod 6, the upper end of every stand 5 is equipped with and rotates to carrying out spacing second locating piece 9 to it when vertical at connecting rod 6, the top of box 1 is equipped with a vertical blackboard 10, the free end of two connecting rods 6 corresponds the front and back both sides that articulate in blackboard 10 upper end respectively, the left side of box 1 is equipped with a montant 11, the right-hand member of montant 11 articulates there is a U-shaped support 12, the lower extreme of U line support is equipped with a horizontally pneumatic telescopic link 13, be equipped with a piston pneumatic cylinder 14 that can make progress automatic re-setting in the box 1, pneumatic cylinder 14 and pneumatic telescopic link 13 are through the trachea intercommunication, when pressing apron 2 to horizontal position, first take-up reel 3 has the horizontal position to rotate to vertical position through second take-up reel 7 drive connecting rod 6, pneumatic cylinder 14 is pressed simultaneously, pneumatic telescopic link 13 gets angry extension and drive U-shaped support 12 lower extreme around articulated position anticlockwise rotation.

In order to realize that the front end of the cover plate 2 is tilted and tends to turn upwards around the hinge shaft, a plurality of first pressure springs 15 which are arranged side by side at intervals are arranged in the box body 1, one end of each first pressure spring 15 is fixed at the bottom of the box body 1, and the other end of each first pressure spring 15 is fixed on the lower end face of the cover plate 2.

In order to limit the cover plate 2, a third positioning block 16 is arranged on the inner side of the box body 1, when the cover plate 2 rotates to be horizontal, the lower end of the cover plate 2 is arranged on the third positioning block 16, a second rope 17 is arranged between the cover plate 2 and the box body 1, one end of the second rope 17 is fixed on the cover plate 2, and the other end of the second rope 17 is fixed at the bottom of the box body 1.

In order to realize that the blackboard 10 can be positioned fast when rotating to the below, the lower extreme of blackboard 10 is equipped with balancing weight 18, is equipped with a first permanent magnet 19 on the balancing weight 18, and the front end of apron 2 is equipped with a bracing piece 20, is equipped with a second permanent magnet 21 on the bracing piece 20, and when connecting rod 6 rotated to the level, and when the apron 2 front end upwards tumbled to the maximum position, first permanent magnet 19 and second permanent magnet 21 contact and adsorb each other.

In order to effectively push the lower end of the U-shaped support 12 to rotate anticlockwise when the air compression rod 13 extends, the lower end of the U-shaped support 12 is provided with a supporting rod 22, the extending end of the air compression rod 13 is provided with a U-shaped plate 23, the supporting rod 22 is arranged in the opening position of the U-shaped plate 23, and the U-shaped plate 23 can limit the supporting rod 22 to position the U-shaped support 12 into a vertical shape when the front end of the cover plate 2 is opened.

In order to facilitate the guiding of the first rope 4, a guide tube 24 is arranged on the upright post 5 at the rear side, and the free end of the first rope 4 passes through the guide tube 24 and is connected with a tension spring.

In order to facilitate the automatic upward return of the piston in the pneumatic cylinder 14, a second compression spring 25 is arranged in the pneumatic cylinder 14, one end of the second compression spring 25 is fixed at the bottom of the cylinder body of the pneumatic cylinder 14, and the other end of the second compression spring is fixed on the piston.

In order to facilitate the downward return of the blackboard 10, a return coil spring 26 mounted on the front side of the front end upright 5 is coaxially fixed to the hinge shaft of the front end link 6.

Make things convenient for the mr to write when blackboard 10 rotates to rise to the highest position in order to realize, second locating piece 9 is the stairstepping locating piece, when connecting rod 6 rotates to vertical, can be spacing to connecting rod 6, can support and spacing blackboard 10 right-hand member face from the right side again, makes things convenient for the mr to write.

The specific working process of the invention is as follows: the initial state of the clothes is as follows: the teacher does not stand on the cover plate 2, at the moment, the front end of the cover plate 2 is tilted upwards under the reset action of the first pressure spring 15, and the front end of the cover plate 2 is limited in tilting height under the limiting action of the second rope 17, at the moment, the two connecting rods 6 are rotated to be horizontal under the resetting action of the coil spring 26, at the moment, the blackboard 10 moves to the lowest end position, at the position, the distance between the blackboard and the camera is the nearest, the support rod 20 at the front end of the cover plate 2 drives the second permanent magnet 21 and the first permanent magnet 19 to adsorb, so that the blackboard 10 keeps vertical, under the reset action of the second pressure spring 25, the pneumatic cylinder 14 sucks back the air in the pneumatic telescopic rod 13 and retracts the extending end of the pneumatic telescopic rod 13, at the moment, the U-shaped bracket 12 keeps a vertical shape under the limit of the supporting rod 22 and the U-shaped plate 23, and the mobile phone is arranged on the U-shaped support 12, so that the camera of the mobile phone can clearly shoot all contents on the blackboard 10 when shooting.

When a teacher needs to write on a blackboard, the teacher steps from the rear end of the cover plate 2 to the cover plate 2, the cover plate 2 enables the front end of the cover plate 2 to move downwards under the action of gravity of the teacher, and the cover plate 2 is enabled to be in a horizontal shape under the action of the third positioning block 16, at this time, the first pressure spring 15 is compressed and enables the cover plate to have a rebounding trend and elastic potential energy, meanwhile, when the cover plate 2 rotates around a hinge shaft of the cover plate, the hinge shaft of the cover plate drives the first winding wheel 3 to tighten the first rope 4, the tightening of the first rope 4 drives the second winding wheel 7 to rotate 90 degrees clockwise, in order to ensure that the second winding wheel 7 can drive the second winding wheel 7 to rotate 90 degrees when the first winding wheel 3 rotates a small angle, the diameter of the first winding wheel 3 is larger than that of the second winding wheel 7, the originally horizontal connecting rod 6 rotates to a vertical shape after the second winding wheel 7 rotates 90 degrees, at this time, the second winding wheel 26 is compressed and enables the second winding wheel to have a rebounding trend and elastic potential energy, when the connecting rod 6 horizontally rotates to be vertical, the connecting rod 6 moves from the first positioning block 8 and contacts with the second positioning block 9, at the moment, the distance between the camera and the blackboard is farthest, the second positioning block 9 is in a step shape, therefore, the connecting rod 6 and the blackboard 10 can be positioned by the second positioning block 9, at the moment, the blackboard 10 moves to the uppermost position, a teacher can walk on the cover plate 2 and write on the blackboard 10, when the cover plate 2 rotates to be horizontal, the cover plate 2 squeezes the piston rod of the pneumatic cylinder 14 to enable the air in the pneumatic cylinder 14 to move towards the pneumatic telescopic rod 13, in the process, the second pressure spring 25 is compressed and enables the cover plate 2 to have rebound tendency and elastic potential energy, meanwhile, the pneumatic telescopic rod 13 is expanded by air, and the support rod 22 is pushed by the U-shaped plate 23 to drive the U-shaped support 12 to rotate around the hinged position, in the process, the camera is enabled to be inclined upwards and the blackboard 10 moving to the uppermost position can be observed, the students can still effectively watch the blackboard 10 when the teachers write, and the students are not easy to be distracted when listening to the class.

When the mr accomplished the blackboard writing, from apron 2 go up down, realize under the reset action of

first pressure spring

15, 2 front ends of apron reset, blackboard 10 resets down and is spacing under the adsorption of first permanent magnet 19 and second permanent magnet 21, realize the return of pneumatic telescoping rod 13 at the reset action of second pressure spring 25 simultaneously, U-shaped support 12 resets to vertical form and makes the camera this moment just to moving to the blackboard 10 of most low position on, make things convenient for the clear mr's on the blackboard 10 of watching of student to write the content.

Compared with the traditional equipment, the device has the following advantages:

1. this device has two states, the mr writes the state and the top position when blackboard motion promptly, the position of highly meeting the mr blackboard book of blackboard this moment, the connecting rod is rotated into vertical form by the level form simultaneously, the space of standing is provided for the mr, the extension of atmospheric pressure telescopic link makes to stretch to follow the blackboard and inclines to the head simultaneously, student's action of raising the head when simulating the mr blackboard book, make the student thinking follow the mr all the time and be difficult to run the spirit, from the apron after the mr accomplishes the blackboard book, the blackboard resets, make the blackboard forward movement, the distance between blackboard and the camera diminishes this moment, make things convenient for clear mr blackboard book content of watching of student, the mr explains from the next door, student's study is faster.

2. Because the blackboard is the articulated lower extreme non-stationary of upper end in this device, consequently install the balancing weight and install first permanent magnet simultaneously at the lower extreme of blackboard, when the blackboard resets from the top position to the bottom position, the blackboard must have the swing, the setting of two permanent magnets, make the blackboard can realize the location of blackboard when two permanent magnets adsorb each other when the swing, make the blackboard location more rapid, the second locating piece adopts cascaded simultaneously, effectually carry on spacingly to connecting rod and blackboard, make mr can not cause rocking of blackboard when writing conveniently write.

3. This device realizes through removing blackboard position that can be effectual providing writing the space for the mr and can make the clear content of writing of watching of student again when writing the completion for whole distance education process student is more concentrated, and this device convenient operation need not use electric power to operate simultaneously, makes this device can carry out remote teaching under various environment, more has practical value.

Claims

1. A remote education auxiliary device comprises a box body (1) with an opening at the upper end, and is characterized in that the opening of the box body (1) is hinged with a cover plate (2) capable of sealing the opening of the box body (1), the rear end of the cover plate (2) is hinged on the box body (1), the front end of the cover plate is tilted and tends to turn upwards around a hinged shaft, a first reel (3) arranged at the right side of the box body (1) is coaxially fixed on the hinged shaft of the cover plate (2), a first rope (4) is wound and fixed on the first reel (3), two upright posts (5) are symmetrically arranged at the front end and the rear end of the right side of the box body (1), the inner side of each upright post (5) is respectively hinged with a connecting rod (6), a second reel (7) is coaxially and fixedly connected on the connecting rod (6) arranged on the upright post (5) at the rear side, the free end of the first rope (4) is wound and fixed on the second reel (7), a first locating block (8) which limits the connecting rod (6) when the connecting rod (6) rotates to the horizontal position is arranged below each connecting rod (6), a second locating block (9) which limits the connecting rod (6) when the connecting rod (6) rotates to the vertical position is arranged at the upper end of each upright post (5), a vertical blackboard (10) is arranged above the box body (1), the free ends of the two connecting rods (6) are respectively and correspondingly hinged at the front side and the rear side of the upper end of the blackboard (10), a vertical rod (11) is arranged at the left side of the box body (1), a U-shaped support (12) is hinged at the right end of the vertical rod (11), a horizontal air pressure telescopic rod (13) is arranged at the lower end of the U-shaped support, a pneumatic cylinder (14) with a piston capable of automatically resetting upwards is arranged in the box body (1), the pneumatic cylinder (14) is communicated with the air pressure telescopic rod (13) through an air pipe, when the cover plate (2) is pressed to the horizontal position, the first winding wheel (3) is driven by the second winding wheel (7) to rotate the connecting rod (6) from the horizontal position to the vertical position, meanwhile, the pneumatic cylinder (14) is pressed, and the pneumatic telescopic rod (13) is inflated to extend and drives the lower end of the U-shaped support (12) to rotate anticlockwise around the hinged position.

2. A remote education auxiliary apparatus according to claim 1 wherein a plurality of first compression springs (15) are provided in the case (1) and spaced side by side, one end of each first compression spring (15) is fixed to the bottom of the case (1) and the other end is fixed to the lower end surface of the cover plate (2).

3. A remote education auxiliary apparatus according to claim 1 wherein a third positioning block (16) is provided inside the case (1), the lower end of the cover plate (2) is placed on the third positioning block (16) when the cover plate (2) is rotated to be horizontal, a second rope (17) is provided between the cover plate (2) and the case (1), one end of the second rope (17) is fixed on the cover plate (2), and the other end is fixed at the bottom of the case (1).

4. A remote education auxiliary apparatus according to claim 1 wherein the blackboard (10) is provided at its lower end with a weight block (18), the weight block (18) is provided with a first permanent magnet (19), the cover plate (2) is provided at its front end with a support bar (20), the support bar (20) is provided with a second permanent magnet (21), and when the connecting rod (6) is rotated to a horizontal position and the cover plate (2) is flipped upward to a maximum position, the first permanent magnet (19) and the second permanent magnet (21) are in contact and attracted to each other.

5. A distance education auxiliary equipment according to claim 1 characterized in that the U-shaped bracket (12) is provided at its lower end with a support rod (22), the air pressure telescopic rod (13) is provided at its protruding end with a U-shaped plate (23), the support rod (22) is placed in the opening position of the U-shaped plate (23), the U-shaped plate (23) can position the U-shaped bracket (12) in a vertical position by the support rod (22) when the front end of the cover plate (2) is opened.

6. A distance education auxiliary equipment according to claim 1 characterized in that the post (5) of the rear side is provided with a guide tube (24) and the free end of the first rope (4) is connected with a tension spring through the guide tube (24).

7. A distance education aid according to claim 1 characterized in that a second pressure spring (25) is provided in the pneumatic cylinder (14), one end of the second pressure spring (25) being fixed to the bottom of the cylinder body of the pneumatic cylinder (14) and the other end to the piston.

8. A remote education auxiliary equipment as claimed in claim 1 wherein a return coil spring (26) installed at the front side of the front end column (5) is coaxially fixed to the hinge axis of the front end link (6).

9. The auxiliary device for distance education as claimed in claim 1, wherein the second positioning block (9) is a stepped positioning block, when the connecting rod (6) is rotated to be vertical, the connecting rod (6) can be limited, and the right end face of the blackboard (10) can be supported and limited from the right side, so that a teacher can write conveniently.