Title:
NOVEL SUPPORTING LEG IN MOBILE SCAFFOLD
Document Type and Number:
WIPO Patent Application WO/2020/143211
Kind Code:
A1
Abstract:
A supporting leg in a mobile scaffold. After the mobile scaffold is moved vertically into position, two joists (2) are horizontally inserted into a socket of a bridge pier (1); the bottom end of the supporting leg (3) is connected to the outer ends of the joists (2) by means of bolts; the supporting leg (3), a jacking cylinder (6) and a balance beam (7) provide support to a distribution beam (11), thereby supporting a main beam (5); and then steel bar binding and concrete pouring may be carried out on the bridge pier (1) to form a box beam (9), and the position where each supporting leg (3) penetrates the box beam (9) is a pre-arranged hole. Four supporting legs (3) are all arranged at the outer side of the front or rear ends of a bridge section, thus avoiding the dense section of poured connected reinforcing steel bars. After concrete curing is completed, a piston rod of the jacking cylinder (6) extends outwards to drive the corresponding balance beam (7) to move up, so that the distribution beam (11) drives the main beam (5) to move up, at which moment a middle trolley (10) moves to the lower end of the main beam (5), the piston rod of the jacking cylinder (6) retracts inwards, the lower end of the main beam (5) contacts the upper end of the middle trolley (10), and the lower end of the middle trolley (10) is located at the upper end of the box beam (9), at which moment the middle trolley (10) supports the main beam (5) and releases the supporting force of the supporting legs (3).
Inventors:
XU TIAN (CN)
KONG QINGZHE (CN)
HU YUANLUN (CN)
LIU FANGJIE (CN)
KONG QINGZHE (CN)
HU YUANLUN (CN)
LIU FANGJIE (CN)
Application Number:
PCT/CN2019/097010
Publication Date:
July 16, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
SHANDONGHENGKUN MACHINERY CO LTD (CN)
International Classes:
E01D21/00
Foreign References:
| CN107227690A | 2017-10-03 | |||
| CN107090779A | 2017-08-25 | |||
| CN201695344U | 2011-01-05 | |||
| CN102720131A | 2012-10-10 | |||
| CN202298472U | 2012-07-04 |
Attorney, Agent or Firm:
JINAN SPRINGS PATENT&TRADEMARK OFFICE (CN)
Download PDF:
Previous Patent: FRONT LEG OF MOVABLE FORMWORK
Next Patent: PIXEL ARRANGEMENT STRUCTURE, DISPLAY PANEL AND DISPLAY DEVICE
Next Patent: PIXEL ARRANGEMENT STRUCTURE, DISPLAY PANEL AND DISPLAY DEVICE