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Hydraulic manual pump

A manual pump and hydraulic technology, applied to pumps, piston pumps, machines/engines, etc., to achieve stable oil supply and simple structure

Inactive Publication Date: 2013-11-06
刘建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But sometimes in the case of power failure or hydraulic system not working properly, if the operation cannot be resumed in time, it will bring serious consequences

Method used

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  • Hydraulic manual pump
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Embodiment Construction

[0011] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0012] Such as Figure 1~2 As shown, a hydraulic manual pump includes a pump body, a piston rod, an oil inlet pipe, an oil outlet pipe and a handle assembly, wherein a cylindrical space is formed inside the pump body as a piston cylinder, and the piston cylinder is inserted into the piston cylinder , wherein an annular groove is provided at the front end of the piston rod, the groove is covered with a sealing ring, and a plurality of through holes are evenly arranged on ...

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Abstract

The invention discloses a hydraulic manual pump, which comprises a pump body, a piston rod, an oil inlet pipeline, an oil outlet pipeline and a handle component, wherein a cylinder-shaped space is arranged in the pump body to serve as a piston cylinder; the oil inlet pipeline is communicated with the closed end of the piston cylinder; the oil outlet pipeline is arranged on the side wall of a tail end of the piston cylinder; the piston rod is arranged in and matched with the piston cylinder, and can move in the piston cylinder; the handle component is connected with the tail end of the piston rod; a ring-shaped groove is formed in the front end of the piston rod, and a sealing ring is arranged in the groove; a plurality of through holes are formed in the ring surface of a front flange of the groove. The hydraulic manual pump is simple in structure, can realize automatic open / close of hydraulic oil by manually operating a handle, and is smooth in oil supply for an oil cylinder.

Description

technical field [0001] The invention belongs to the opening and closing gate valve of a hydraulic system and is mainly used in mines and underground pipelines. Background technique [0002] The opening and closing of the gate valve is to drive the equipment through the electric motor or the hydraulic system, so as to realize the normal operation of the equipment, and its power source is the hydraulic cylinder of the hydraulic system to realize the opening or closing of the gate valve. But sometimes in the case of power failure or hydraulic system not working properly, if the operation cannot be resumed in time, it will bring serious consequences. Therefore, it is necessary to set up an auxiliary system in the hydraulic transmission mechanism, so that the hydraulic system can still continue to work when the hydraulic system fails to work normally. Contents of the invention [0003] Purpose of the invention: In view of the above-mentioned existing problems and deficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B9/14
Inventor 徐学林陈志刚刘学娇
Owner 刘建
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