Self-locking hydraulic jack with two-way action

A hydraulic jack, two-way action technology, applied in the direction of the lifting device, can solve the problems of hindering the oil return port, the difficulty of oil return of the jack, and the impact on site construction, etc., to achieve the effects of increased service life, compact structure, and reasonable layout

Pending Publication Date: 2018-11-23
南京奥达升智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this self-locking device prevents the installation of the oil return port, so that the piston of the self-locking jack can only move in one direction through the oil pressure, which makes it difficult to return the oil to the jack and affects the construction on site.

Method used

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  • Self-locking hydraulic jack with two-way action

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...

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Abstract

The invention relates to the technical field of machinery, in particular to a self-locking hydraulic jack with a two-way action. The jack comprises a cylinder body, a cavity is formed inside the cylinder body, a piston is arranged in the cavity, a guiding ring is arranged between the piston and the cylinder body, a nut sleeves the outer periphery of the cylinder body, an oil inlet hole is formed in one side surface of the cylinder body, an oil return hole is formed in the other side surface of the cylinder body, an oil passing hole is formed in the inside of the cylinder body, and the oil passing hole and the oil return hole are communicated. According to the jack, a traditional self-locking jack structure form is improved, the mechanical self-locking jack can make the piston move in two directions through the oil pressure of the oil inlet hole and the oil return hole, which not only reduces the difficulty coefficient of oil return of the jack during construction, but also increases the service life of the jack, the entire jack is compact in structure and reasonable in layout, and there is no effect on the space used by the jack.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a self-locking hydraulic jack with two-way action. Background technique [0002] During the implementation of the existing building lifting and rectifying technology, the jacks involved need to be in a load-holding state for a long time. Because the jack cylinder bears heavy objects for a long time, it is very easy to cause damage. So the jack has generally been improved at present, and a mechanical self-locking device has been added. This self-locking device is formed by screwing a nut on the outer wall of the jack. But this self-locking device hinders the setting of the oil return port, so that the piston of the self-locking jack can only move in one direction through the oil pressure, so that it is quite difficult for the jack to return oil, which affects the on-site construction. In view of this, we propose a self-locking hydraulic jack with two-way action. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/25B66F3/26
CPCB66F3/25B66F3/26B66F2700/05
Inventor 潘宇翔
Owner 南京奥达升智能科技有限公司
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