Title:
マンホール夾雑物除去装置
Document Type and Number:
Japanese Patent JP6765625
Kind Code:
B2
Abstract:
To remove contaminants that flow into a manhole without entering the manhole, and solve the problems: the contaminants such as towels and disposable diapers which flow in the manhole pumping station may get entangled in the pump wings, causing the pump to stop working; due to the occurrence of toxic gases present in manhole, internal work is extremely dangerous and many accidents have been reported.SOLUTION: This device is located inside an existing sub-inflow pipe 5 and is detachably installed near an outlet of an inflow pipe 4 with a detachable metal fitting 6. The material is made of stainless steel to withstand corrosion. The tips of a front spine hook 8 and a back spine hook 18 are processed into a spine shape to pierce and fasten the inflowing contaminants.SELECTED DRAWING: Figure 1
Inventors:
Katsumi Hara
Kenichiro Hara
Kenichiro Hara
Application Number:
JP2018026473A
Publication Date:
October 07, 2020
Filing Date:
January 30, 2018
Export Citation:
Assignee:
Hara Giken Industry Co., Ltd.
International Classes:
E03F5/14; E02D29/12; E03F5/02
Domestic Patent References:
| JP2016037721A | ||||
| JP58140290U | ||||
| JP60028889U |
Foreign References:
| KR101382006B1 |