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Large-tonnage jack

A jack and large-tonnage technology, applied in the field of large-tonnage jacks, can solve the problems of easy sliding between the jack and the abutting surface, easy shaking of the upper and lower abutting surfaces, and general stability of the top, so as to achieve good lifting effect and improve stability. , the effect of stable shaking

Inactive Publication Date: 2021-03-12
安徽蒂森五金工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when dealing with taller objects, this solution still needs a bottom cushion, and the stability of the bottom is poor, and it is easy to slip between the jack and the abutment surface during the lifting process. The joint is easy to shake and the jacking effect is poor

Method used

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  • Large-tonnage jack
  • Large-tonnage jack
  • Large-tonnage jack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1-3 As shown, a large-tonnage jack includes a jack main body 1, the top of the jack main body 1 is provided with a jacking fixing seat 2 and a pump body seat 3, and it is characterized in that the jacking fixing seat 2 is provided with a top Lifting oil chamber 4, the jacking oil chamber 4 is provided with a jacking cylinder 5 that can reciprocate linearly in the vertical direction, the pump body seat 3 is provided with a pump body oil chamber 6, and the pump body seat 3 is provided with a pump body oil chamber 6, and the pump The body oil chamber 6 is provided with a driving member 7, and a hydraulic oil circuit structure 8 is provided between the jacking oil chamber 4 and the pump body oil chamber 6, and one end of the hydraulic oil circuit structure 8 is connected to the pump body oil chamber 6 The other end is connected with the jacking oil ...

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PUM

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Abstract

The invention belongs to the technical field of jacks, and particularly relates to a large-tonnage jack. The jack comprises a jack body, wherein a jacking fixed seat and a pump body seat are arrangedat the top of the jack body; a jacking oil cavity is arranged in the jacking fixed seat; a jacking cylinder capable of linearly moving in a reciprocating mode in the vertical direction is arranged inthe jacking oil cavity; and a pump body oil cavity is arranged in the pump body seat. Through the arrangement of a multi-angle anti-deviation clamping jacking component, in the jacking process, the multi-angle anti-deviation clamping jacking component abuts against a to-be-jacked part all the time, the multi-angle fixing effect is achieved, the jacked part cannot slide in the jacking process, andthe stability of the top in the jacking process is improved when the multi-angle anti-deviation clamping jacking component is used for coping with some large-tonnage objects; and when the needed jacking height is large, the height of a height adjusting piece can be adjusted firstly, the jacking speed and efficiency are improved, bricks do not need to be cushioned at the bottom of the jack body, the stability of the bottom is guaranteed, the upper abutting face and the lower abutting face are stable and not prone to shaking, and the jacking effect is good.

Description

technical field [0001] The invention belongs to the technical field of jacks and relates to a large-tonnage jack. Background technique [0002] Jacks are often used during maintenance or assembly. Vertical jacks are widely used because of their small size and portability. However, vertical jacks have certain limitations in use because of the limited height they support. For taller Objects, people generally use stones or hard objects at the bottom of the vertical jack as a base pad to increase the support height of the jack. The stability of the bottom is poor, and the top of the jack contacts the lifting parts. The one-sided contact method is prone to slipping during the jacking process, and the stability of the top is relatively average. The upper and lower contact surfaces are easy to shake during the working process, and the jacking effect is poor. [0003] In order to overcome the deficiencies of the prior art, people have been exploring and proposing various solutions....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/42B66F3/43B66F3/25
CPCB66F3/25B66F3/42B66F3/43
Inventor 林华
Owner 安徽蒂森五金工具有限公司