Title:
MANHOLE COVER FOR MUNICIPAL ENGINEERING
Document Type and Number:
WIPO Patent Application WO/2020/042048
Kind Code:
A1
Abstract:
Disclosed is a manhole cover for municipal engineering, comprising a manhole (1), wherein the top of an inner wall of the manhole (1) is fixedly connected to an outer frame (3) by means of a first screw (2); the bottom of the outer frame (3) is fixedly connected to a bottom plate (5) by means of a second screw (4); several springs (6) are welded to an upper surface of the bottom plate (5); ends, away from the bottom plate (5), of the springs (6) are welded to a first top plate (7); the top of the outer frame (3) is provided with a first clamping groove (8); a first clamping block (10) is clamped inside the first clamping groove (8); the first clamping block (10) is fixedly connected to a baffle plate (9); and a first water discharge hole (11) is provided inside the baffle plate (9).
Inventors:
LI GUOLAN (CN)
Application Number:
PCT/CN2018/103105
Publication Date:
March 05, 2020
Filing Date:
August 29, 2018
Export Citation:
Assignee:
HAO WEI ENVIRONMENTAL TECH NANTONG CO LTD (CN)
International Classes:
E02D29/14
Foreign References:
| CN107524173A | 2017-12-29 | |||
| CN206888022U | 2018-01-16 | |||
| CN206034494U | 2017-03-22 | |||
| CN204590087U | 2015-08-26 | |||
| CN207121932U | 2018-03-20 | |||
| CN206768869U | 2017-12-19 | |||
| KR20130089298A | 2013-08-12 |
Attorney, Agent or Firm:
WISE & PARTNER (CN)
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