A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a portable roadblock. The portable roadblock comprises a base, a cone-shaped cloth barrel arranged on the base, a tower-shaped spring arranged in the cone-shaped cloth barrel, and a cover covering the base, and is characterized in that the tower-shaped spring comprises a lower tower-shaped spring and an upper tower-shaped spring; the steel wire of the upper tower-shaped spring is thinner than that of the lower tower-shaped spring; the upper end of the lower tower-shaped spring and the lower end of the upper tower-shaped spring are connected together. Compared with the prior art, the portable roadblock has the advantages that the portable roadblock is convenient to open and also easy to fold.
The invention relates to a portable roadblock. The portable roadblock comprises a base, a cone-shaped cloth barrel arranged on the base, a tower-shaped spring arranged in the cone-shaped cloth barrel, and a cover covering the base, and is characterized in that the tower-shaped spring comprises a lower tower-shaped spring and an upper tower-shaped spring; the steel wire of the upper tower-shaped spring is thinner than that of the lower tower-shaped spring; the upper end of the lower tower-shaped spring and the lower end of the upper tower-shaped spring are connected together. Compared with the prior art, the portable roadblock has the advantages that the portable roadblock is convenient to open and also easy to fold.
Portable roadblock
XU WEICHENG (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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