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Title:
ROTARY SEALING APPARATUS FOR NON-FIXED ROTARY AXIS CONCRETE MIXER VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/119390
Kind Code:
A1
Abstract:
Disclosed is a rotary sealing apparatus for a non-fixed rotary axis concrete mixer vehicle. The concrete mixer vehicle comprises a mixing bucket and a mobile part and is provided with a rotary sealing cover rotating with the mixing bucket. A through hole is provided at the middle part of the rotary sealing cover. A support ring is provided at the through hole. A material inlet hopper is mounted on the mobile part. A material inlet cylinder running through the through hole is connected to an outlet of the material inlet hopper. A gap is provided between the support ring and the outer wall of the material inlet cylinder. A flexible sealing mechanism is fixedly mounted on the support ring to implement the sealing between the rotary sealing cover and the material inlet cylinder. A dial ring is provided on the outer wall of the material inlet cylinder. The vehicle also comprises a pressing mechanism. The mobile part presses the rotary sealing cover at the tail part of the mixing bucket via the pressing mechanism. The present invention breaks traditional thinking, obviates a rotary support apparatus, avoids the problems such as damaged parts and leakage brought forth by repeated positioning, and reduces subsequent maintenance workload, thus reducing costs.

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Inventors:
SHENG FUCHUN (CN)
SHENG NAN (CN)
Application Number:
PCT/CN2019/119051
Publication Date:
June 18, 2020
Filing Date:
November 18, 2019
Export Citation:
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Assignee:
YANTAI SHENGLIDA ENGINEERING TECH CO LTD (CN)
International Classes:
B28C5/42; B28C5/14; F16J15/24
Domestic Patent References:
WO2013190256A12013-12-27
Foreign References:
CN109366736A2019-02-22
CN209395016U2019-09-17
CN209395017U2019-09-17
CN108724465A2018-11-02
CN107344401A2017-11-14
CN108858783A2018-11-23
CN107584672A2018-01-16
CN105365047A2016-03-02
Attorney, Agent or Firm:
YANTAI SHUANGLIAN PATENT FIRM (ORDINARY PARTNERSHIP) (CN)
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