Title:
INTERMITTENT ROTATION STRUCTURE FOR EXTENSION TOOL, AND EXTENSION TOOL
Document Type and Number:
WIPO Patent Application WO/2024/092873
Kind Code:
A1
Abstract:
Disclosed in the present invention is an intermittent rotation structure for an extension tool. The intermittent rotation structure comprises: a rotary cam, a roller and an ejector pin, wherein the roller is rotationally arranged at the tail of the ejector pin; the roller is connected to a circumferential side wall of the rotary cam in a manner of coming into contact with same; a rotary sleeve is sleeved on a front end portion of the ejector pin; a guide sleeve is sleeved on the tail of the ejector pin; a spring is sleeved on an outer side wall of the ejector pin located in the rotary sleeve and the guide sleeve; the ejector pin moves in the direction of a guide groove provided in the guide sleeve; a rotary gear is arranged on an outer side wall of the rotary sleeve in a transmission manner; several extension portions are arranged on the end face of the rotary sleeve close to the front end portion of the ejector pin; an incomplete gear is arranged on an end face of the rotary cam; a first driven gear is arranged on one side of the incomplete gear in a transmission manner; an extension rod is arranged on the first driven gear; and the extension rod extends to the rotary gear and is in transmission connection with the rotary gear by means of a second driven gear. The present solution has the characteristics of having a simple structure, being easy to operate, and being capable of intermittently rotating a conical extension head.
Inventors:
SHAO JIANWEI (CN)
CHENG JIAZHONG (CN)
CHENG JIAZHONG (CN)
Application Number:
PCT/CN2022/131602
Publication Date:
May 10, 2024
Filing Date:
November 14, 2022
Export Citation:
Assignee:
CHANGZHOU SAIPO ELECTRIC APPLIANCE CO LTD (CN)
International Classes:
B29C57/06; B29C57/04
Foreign References:
| US20200261959A1 | 2020-08-20 | |||
| CN111810612A | 2020-10-23 | |||
| CN114850326A | 2022-08-05 | |||
| CN214726466U | 2021-11-16 |
Attorney, Agent or Firm:
NANJING ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
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