A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Remote teaching platform
The invention relates to a remote teaching platform. According to the technical scheme, the platform comprises a box body, a cover plate is hinged to the opening of the box body; a first winding wheelis coaxially fixed on the cover plate hinge shaft; a first rope is wound and fixed on the first winding wheel; two stand columns are symmetrically arranged at the front and rear ends of the right side of the box, a connecting rod is hinged to the inner side of each stand column, a second winding wheel is coaxially and fixedly connected to the connecting rod positioned on the upright post on the rear side; the free end of the first rope is wound and fixed on the second winding wheel; a vertical pneumatic telescopic rod is arranged on the left side of the box body; a U-shaped bracket with an upward opening is fixed at the extending end of the pneumatic telescopic rod; a pneumatic cylinder with a piston capable of automatically resetting upwards is arranged in the box body, the pneumatic cylinder is communicated with the pneumatic telescopic rod through an air pipe, when the cover plate is pressed to the horizontal position, the connecting rod rotates to the vertical position from the horizontal position, meanwhile, the pneumatic cylinder is pressed, and the pneumatic telescopic rod is inflated to extend and drive the U-shaped support to move upwards along with the blackboard.
本发明涉及一种远程教学讲台；其解决的技术方案包括箱体，箱体开口处铰接有一个盖板，盖板铰接轴上同轴固定一个第一卷线轮，第一卷线轮上缠绕并固定有一个第一绳索，箱体的右侧的前后两端对称设有两个立柱，每个立柱的内侧各铰接有一个连杆，位于后侧立柱上的连杆上同轴固定连接有一个第二卷线轮，第一绳索的自由端缠绕并固定在第二卷线轮上，箱体的左侧设有一个竖向的气压伸缩杆，气压伸缩杆的伸出端固定有一个开口朝上的U形支架，箱体内设有一个活塞可向上自动复位的气压缸，气压缸与气压伸缩杆经气管连通，按压盖板至水平位置时，连杆由水平位置转动至竖直位置，同时气压缸被按压，气压伸缩杆得气伸长并驱动U形支架跟随黑板向上运动。
Remote teaching platform
The invention relates to a remote teaching platform. According to the technical scheme, the platform comprises a box body, a cover plate is hinged to the opening of the box body; a first winding wheelis coaxially fixed on the cover plate hinge shaft; a first rope is wound and fixed on the first winding wheel; two stand columns are symmetrically arranged at the front and rear ends of the right side of the box, a connecting rod is hinged to the inner side of each stand column, a second winding wheel is coaxially and fixedly connected to the connecting rod positioned on the upright post on the rear side; the free end of the first rope is wound and fixed on the second winding wheel; a vertical pneumatic telescopic rod is arranged on the left side of the box body; a U-shaped bracket with an upward opening is fixed at the extending end of the pneumatic telescopic rod; a pneumatic cylinder with a piston capable of automatically resetting upwards is arranged in the box body, the pneumatic cylinder is communicated with the pneumatic telescopic rod through an air pipe, when the cover plate is pressed to the horizontal position, the connecting rod rotates to the vertical position from the horizontal position, meanwhile, the pneumatic cylinder is pressed, and the pneumatic telescopic rod is inflated to extend and drive the U-shaped support to move upwards along with the blackboard.
本发明涉及一种远程教学讲台；其解决的技术方案包括箱体，箱体开口处铰接有一个盖板，盖板铰接轴上同轴固定一个第一卷线轮，第一卷线轮上缠绕并固定有一个第一绳索，箱体的右侧的前后两端对称设有两个立柱，每个立柱的内侧各铰接有一个连杆，位于后侧立柱上的连杆上同轴固定连接有一个第二卷线轮，第一绳索的自由端缠绕并固定在第二卷线轮上，箱体的左侧设有一个竖向的气压伸缩杆，气压伸缩杆的伸出端固定有一个开口朝上的U形支架，箱体内设有一个活塞可向上自动复位的气压缸，气压缸与气压伸缩杆经气管连通，按压盖板至水平位置时，连杆由水平位置转动至竖直位置，同时气压缸被按压，气压伸缩杆得气伸长并驱动U形支架跟随黑板向上运动。
Remote teaching platform
一种远程教学讲台
WU YU (author) / LI JINFANG (author) / YUAN YUAN (author) / ZHANG YUEYUE (author) / LIU YANG (author) / FENG JIA (author)
2020-09-25
Patent
Electronic Resource
Chinese
IPC:
A47B
Tische
,
TABLES
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
/
G03B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM
,
Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien
Online Contents | 2006