Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Warning signs for urban drainage safety / 城市设施

Warning signs for urban drainage safety

Design specification:As an indispensable public facilities, once lost, damaged, will become a dangerous
hidden danger, at any time may cause injury or death, and horizon is designed to solve this problem of
products. It uses the extremely simple design, mainly by the warning sign, the fixed ring, the spring three
parts. And is in the existing urban pipeline system in addition, the impact on the pipeline system is
extremely low. The utility model can also solve the danger caused by the loss of the manhole cover under
the conditions of low cost and simple structure.


Xihua University

Xihua University
ChengDu, China

Xin-yi huang,
Xihua University

Wen rao,
Xihua University

Jia-qi niu,
Xihua University