Title:
ROAD CUTTER
Document Type and Number:
WIPO Patent Application WO/2022/000876
Kind Code:
A1
Abstract:
A road cutter, comprising a centering seat (5), a rotating main shaft (1) and a cutting frame (2). Several magnet blocks (6) are provided at the bottom part of the centering seat (5), and a centering hole (10) is provided at the center of the centering seat (5); the cutting frame (2) is fixed on the rotating main shaft (1) and rotates along therewith; and the lower end part of the rotating main shaft (1) is provided with a centering rod (3) that passes though the centering hole (10), the outer end part of the cutting frame (2) is provided with at least one vertically downward knife arm (4), and the bottom end of the knife arm (4) is provided with a cutting knife (8). The road cutter has a simple structure, and may cut and replace a manhole cover, a manhole seat and the surrounding road as a whole, thereby improving the working efficiency.
Inventors:
SZE WAIPAN (CN)
CHAN KAIKING (CN)
ZHANG DAOZHONG (CN)
ZOU HAI (CN)
CHAN KAIKING (CN)
ZHANG DAOZHONG (CN)
ZOU HAI (CN)
Application Number:
PCT/CN2020/123124
Publication Date:
January 06, 2022
Filing Date:
October 23, 2020
Export Citation:
Assignee:
FREETECH THERMAL POWER CO LTD (CN)
International Classes:
E01C23/12
Foreign References:
| JP2006070687A | 2006-03-16 | |||
| JP2860658B2 | 1999-02-24 | |||
| CN209602936U | 2019-11-08 | |||
| JP2006037479A | 2006-02-09 | |||
| KR101586808B1 | 2016-01-19 | |||
| CN111155408A | 2020-05-15 | |||
| CN111636281A | 2020-09-08 | |||
| CN212316622U | 2021-01-08 |
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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