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Patent Searching and Data


Title:
AUTOMATICALLY SEALING SCREW-ON ROTARY SEALING APPARATUS FOR ROTATING BARREL
Document Type and Number:
WIPO Patent Application WO/2020/224335
Kind Code:
A1
Abstract:
Disclosed in the present invention is an automatically sealing screw-on rotary sealing apparatus for a rotating barrel. The rotating barrel is mounted on a chassis, and a central drum coaxial therewith is mounted at the back end of the barrel, the central drum rotating integrally with the rotating barrel. Further comprised is a rotary sealing cover sleeved on the central drum, and a main sealing ring used to contact the edge of the back end of the rotating barrel is provided at the outer edge of the rotary sealing cover. An external screw thread is provided on the central drum, and a nut matched with the external screw thread is mounted at the position of a through hole of the rotary sealing cover. The rotary sealing apparatus comprises an anti-rotation guide apparatus movably mounted on the chassis, used to prevent the rotary sealing cover from rotating along with the central drum and guiding the rotary sealing cover to move backwards and forwards. In the present invention, the goal of opening and closing a rotary sealing cover is achieved using the rotational power of a mixing barrel, eliminating apparatuses in the prior art such as high-power oil (or air) cylinders, reducing costs, and avoiding the problem that faults can occur easily if oil cylinders or air cylinders are jolted. The invention features a simple structure, easy operation, low costs, high reliability, and a low amount of maintenance.

Inventors:
SHENG DI (CN)
Application Number:
PCT/CN2020/079807
Publication Date:
November 12, 2020
Filing Date:
March 18, 2020
Export Citation:
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Assignee:
SHENG DI (CN)
International Classes:
B28C5/42
Foreign References:
CN210025814U2020-02-07
CN109986698A2019-07-09
CN102310483A2012-01-11
CN103600418A2014-02-26
CN109624087A2019-04-16
EP0642900A11995-03-15
JP2000185316A2000-07-04
Attorney, Agent or Firm:
YANTAI SHUANGLIAN PATENT FIRM (ORDINARY PARTNERSHIP) (CN)
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