Title:
CHISEL HAVING DOUBLE LIMITING DISCS
Document Type and Number:
WIPO Patent Application WO/2022/016875
Kind Code:
A1
Abstract:
A chisel (5) having double limiting discs, comprising a holding seat (3) and a chisel head mounted on the holding seat (3). The chisel head comprises a head portion (7) and an extension portion (8) provided at the lower side of the head portion (7); a first limiting disc (1) and a second limiting disc (2) are provided from top to bottom between the holding seat (3) and the head portion (7); a first mounting through hole (10) is formed on the middle portion of the first limiting disc (1); a second mounting through hole (20) is formed on the middle portion of the second limiting disc (2); and the second limiting disc (2) is combined with the first limiting disc (1) in a locally recessed or locally raised mode. The chisel (5) can prolong the service life of the holding seat (3) and that of the chisel head, the coaxiality of the chisel (5) and the position of the holding seat (3) is guaranteed, and during working, the chisel (5) can keep the optimal rotary cutting performance.
Inventors:
MIAO XIANG (CN)
QIN PENG CHENG (CN)
QIN PENG CHENG (CN)
Application Number:
PCT/CN2021/079224
Publication Date:
January 27, 2022
Filing Date:
March 05, 2021
Export Citation:
Assignee:
SUZHOU WUYUANSU MACHINERY MFG CO LTD (CN)
International Classes:
E01C23/088; E01C23/06
Domestic Patent References:
| WO2001029375A2 | 2001-04-26 |
Foreign References:
| CN102900012A | 2013-01-30 | |||
| US20050173966A1 | 2005-08-11 | |||
| CN111809490A | 2020-10-23 | |||
| CN212477365U | 2021-02-05 | |||
| CN213173264U | 2021-05-11 | |||
| CN105862559A | 2016-08-17 | |||
| EP1319801B1 | 2006-05-17 |
Attorney, Agent or Firm:
SUZHOU HANDONG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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