Extension structure with expandable space
US10538192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Mar 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/698
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses an extension structure with expandable space, comprising: a vehicle body, a lower end face of the vehicle body is provided with a plurality of hydraulic support legs; four horizontal rods, the lower side of each opening is provided with two horizontal rods; the four horizontal rods are of telescopic structures, and are folded on two sides of the vehicle body; two top plates, two bottom plates, two extension side walls, each extension side wall comprising: a first side wall plate, a second side wall plate and a third side wall plate, wherein two side edges of the first side wall plate are hinged to one side edge of the second side wall plate and one side edge of the third side wall plate, respectively, and the other side edge of the second side wall plate and the other side edge of the third side wall plate are hinged to two sides of the openings, respectively. By adopting the extension structure with expandable space as illustrated in the invention, space available for use can be expanded effectively, and the demand on the functions of folding and expanding the space for practical use are fully met, that is to say, extra space is not occupied in a folded sta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.