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Hydraulic mobile lifting platform and labor-saving apparatus

A lifting platform, hydraulic technology, applied in the direction of the lifting device, etc., can solve the problems of enlarged scissor bar section, bulky overall structure, inconvenient movement, etc., and achieve the effect of saving materials, reducing costs, and reducing the weight of the structure

Inactive Publication Date: 2009-03-25
CHINA CONSTR IND & ENERGY ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing hydraulic mobile lifting platform is initially lifted, the lifting angle of the hydraulic cylinder is about 30° with respect to the horizontal line, which is the most unfavorable stage of the hydraulic mobile lifting platform during the lifting process. The scissor rod bears Due to the maximum force in the whole lifting process, in order to meet the load-bearing requirements of the scissors, the section of the scissors is enlarged, which makes the overall structure bulky, consumes materials, and is inconvenient to move.

Method used

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Embodiment Construction

[0012] With reference to the accompanying drawings, the present invention will be further described corresponding to the general order of the claims, figure 1 Among them, inside or at both ends of the scissor bars 2 on both sides, several labor-saving devices 4 are installed, and the lower ends of the labor-saving devices 4 are installed on the chassis 8, and the upper end thereof withstands a pair of uppermost pair of parallel and opposite scissor bars 2. Between the connecting rod 3, or the bottom of the platform, the labor-saving device 4 can also be installed on the outside of the scissor bar 2 on both sides, or its upper end can also be supported on the connecting rod between any layer of the scissor bar 2, but , only the uppermost connecting rod exerts the least force. The oil delivery main pipe 20 at the outlet of the oil pump 18 is connected to the lower part of the labor-saving device 4 and passes into its cylinder. In the cylinder, the pumped hydraulic oil first ente...

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Abstract

The invention discloses a hydraulic movable elevation platform and a labor-saving device, comprising a chassis, a platform, scissor rods and a hydraulic cylinder. The invention is characterized in that: the labor-saving device is arranged on the chassis; when the hydraulic movable elevation platform rises at the beginning the upper end of the labor-saving device clings to a linkage rod between a couple of parallel and opposite scissor rods; the pressure oil output by an oil pump firstly enters the hydraulic cylinder of the labor-saving device through a main oil-transporting tube and the hydraulic cylinder of the labor-saving device is adopted to push the scissor to rise so as to enlarge the angles between the scissor rods, hydraulic cylinder and the horizontal line and largely reduce the stress to the scissor rods when the scissor rods rise at the beginning. The invention enhances the bad stressing condition of the hydraulic movable elevation platform rising at the beginning and the stressing to the scissor rods can be reduced by four times to a half times compared with the stressing to the existing hydraulic movable elevation platform; thefore, the weight of the structure is reduced, the material can be conserved and the cost also can be reduced with the dramatic economic and social benefit.

Description

technical field [0001] The invention relates to a hydraulic mobile lifting platform and a labor-saving device for high-altitude operations. Background technique [0002] When the existing hydraulic mobile lifting platform is initially lifted, the lifting angle of the hydraulic cylinder is about 30° with respect to the horizontal line, which is the most unfavorable stage of the hydraulic mobile lifting platform during the lifting process. The scissor rod bears Due to the role of the maximum force in the whole lifting process, in order to meet the load-bearing requirements of the scissors, the section of the scissors is enlarged, which makes the overall structure bulky, consumes materials, and is inconvenient to move. Contents of the invention [0003] The purpose of the present invention is to improve the stress situation when the hydraulic mobile lifting platform is initially lifted, to overcome the unfavorable factors of the small angle of the scissor lever and the large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F11/04
Inventor 白天海
Owner CHINA CONSTR IND & ENERGY ENG GRP CO LTD
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