Title:
GROUTING VALVE AT BOTTOM OF CAST-IN-PLACE PILE FOR GEOTECHNICAL ENGINEERING CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2021/233290
Kind Code:
A1
Abstract:
Disclosed in the present invention is a grouting valve at the bottom of a cast-in-place pile for geotechnical engineering construction, comprising a main cylinder, a first connection sleeve, a first connection cylinder, secondary cylinders, a second connection sleeve, a second connection cylinder, and adjustment assemblies. The lower part of the first connection cylinder is provided with first discharge holes; the lower part of the second connection cylinder is provided with fifth discharge holes; each adjustment assembly comprises a mounting frame, a first connection shaft, a second connection shaft, first connection rods, second connection rods, third connection rods, first mounts, fourth connection rods, fifth connection rods, sixth connection rods, and second mounts; the second connection rods are disposed on the first mounts; the first mounts are disposed on the secondary cylinders; the fifth connection rods are disposed on the second mounts; the second mounts are disposed on the main cylinder; and the main cylinder and the secondary cylinders are each provided with a driving mechanism for driving two parallelogram mechanisms to rotate so that the main cylinder and the secondary cylinders move toward or away from each other. The present invention can be used for grouting on both inner and outer sides of a steel cage, such that the grouting is more uniform, and the speed is faster.
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Inventors:
SU TIANYONG (CN)
ZHOU HAN (CN)
LIU WENLIAN (CN)
WANG LIANGCHUAN (CN)
LI JIKUI (CN)
QIU JIANBIN (CN)
MAO YONG (CN)
CHENG CIFENG (CN)
XU PENG (CN)
HUAI XIANGYING (CN)
XU DEYU (CN)
ZHANG XIANGYANG (CN)
XU HANHUA (CN)
HU LONG (CN)
WANG CHAO (CN)
ZHOU HAN (CN)
LIU WENLIAN (CN)
WANG LIANGCHUAN (CN)
LI JIKUI (CN)
QIU JIANBIN (CN)
MAO YONG (CN)
CHENG CIFENG (CN)
XU PENG (CN)
HUAI XIANGYING (CN)
XU DEYU (CN)
ZHANG XIANGYANG (CN)
XU HANHUA (CN)
HU LONG (CN)
WANG CHAO (CN)
Application Number:
PCT/CN2021/094340
Publication Date:
November 25, 2021
Filing Date:
May 18, 2021
Export Citation:
Assignee:
KUNMING PROSPECTING DESIGN INST OF CHINA NONFERROUS METALS INDUSTRY CO LTD (CN)
International Classes:
E02D5/34
Foreign References:
| CN111535312A | 2020-08-14 | |||
| CN207739247U | 2018-08-17 | |||
| CN208472708U | 2019-02-05 | |||
| CN207672562U | 2018-07-31 | |||
| US3869869A | 1975-03-11 | |||
| KR101946953B1 | 2019-02-12 |
Attorney, Agent or Firm:
K & H INTELLECTUAL PROPERTY FIRM (CN)
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