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Hydraulic jack

A technology of hydraulic jacks and hydraulic pumps, applied in the direction of lifting devices, etc., can solve the problems of scrapped jacks and pistons that cannot be returned, and achieve the effect of easy operation

Inactive Publication Date: 2016-06-29
丁克芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The jack plays a very important role in modern industrial applications. It can support objects with considerable weight. However, due to some special circumstances, the jack needs to support heavy objects for a long period of time. Some special jacks can complete such tasks, but Due to supporting the heavy object for a long time, the piston extension spring has been finalized. After withdrawing from the heavy object, the piston basically cannot return to its position, causing the jack to be scrapped

Method used

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Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0010] Such as figure 1 As shown, a hydraulic jack is mainly composed of a hydraulic pump 1, a piston cylinder 2 and an oil cylinder 3. The hydraulic pump 1 and the piston cylinder 2 are connected through a pipeline A4, and the hydraulic pump 1 and the oil cylinder 3 are connected through a pipeline B5. The piston cylinder 2 and the oil cylinder 3 are connected through the pipeline C6, and the pipeline A4 and the pipeline B5 are respectively provided with an oil sealing chamber 7, and a small ball 8 is arranged in the oil sealing chamber 7, and the diameter of the small ball 8 is Greater than the diameter of pipeline A4 or pipeline B5, said pipeline C6 is provided with an oil drain valve 9 .

[0011] When in use, first lock the oil drain valve 9, and operate the hydraulic pump to pump oil and deliver oil. In the pump 1, at the same time, the small ball 8 in...

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Abstract

The invention discloses a hydraulic jack. The hydraulic jack is mainly composed of a hydraulic pump, a piston cylinder and an oil cylinder, wherein the hydraulic pump communicates with the piston cylinder through a pipeline A; the hydraulic pump communicates with the oil cylinder through a pipeline B; the piston cylinder communicates with the oil cylinder through a pipeline C; the pipeline A and the pipeline B are each provided with an oil sealing cavity, small balls are arranged in the oil sealing cavities, and the diameter of the small balls is larger than that of the pipeline A or the pipeline B; the pipeline C is provided with an oil release valve. Due to the design of the oil sealing cavities and the small balls, the hydraulic pump can only pump oil from the oil cylinder and only push the oil into the piston cylinder in work, so that the oil is continuously conveyed into the piston cylinder from the oil cylinder. After a hoisting task is completed, the oil release valve is opened, and then the oil can be released into the oil cylinder. Operation is simple, convenient, safe and reliable.

Description

technical field [0001] The present invention relates to a jack. Background technique [0002] The jack plays a very important role in modern industrial applications. It can support objects with considerable weight. However, due to some special circumstances, the jack needs to support heavy objects for a long period of time. Some special jacks can complete such tasks, but Due to supporting the heavy object for a long time, the piston extension spring has been finalized. After withdrawing from the heavy object, the piston basically cannot return to its position, resulting in the scrapping of the jack. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hydraulic jack. [0004] In order to solve the above technical problems, the present invention provides a hydraulic jack, which is mainly composed of a hydraulic pump, a piston cylinder and an oil cylinder. The hydraulic pump and the piston cylinder are connected thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/42B66F3/43
Inventor 丁克芳
Owner 丁克芳