Portable gas-liquid pressure cylinder capable of prolonging service life of sealing element

A technology of gas-liquid pressurized cylinders and seals, which is applied in the direction of fluid pressure converters, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve problems such as insufficient pressure and damage to sealing rings, and prevent excessive pressure high effect

CN111878469APending Publication Date: 2020-11-03WEISHIXI (ZHEJIANG) FLUID TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-11-03

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Abstract

The invention provides a portable gas-liquid pressure cylinder capable of prolonging the service life of a sealing element. The portable gas-liquid pressure cylinder comprises a cylinder body. The cylinder body comprises an upper fixing barrel and a lower fixing barrel, an oil way channel is formed in the middle of a second sealing connecting piece, a pressure piston is arranged outside an oil waychannel in the lower end of the second sealing connecting piece in a sliding and sleeving manner and arranged in a sliding cavity, and a piston pressing rod is installed in the lower fixing barrel ina sliding manner. A second oil cavity is formed between the top end of the piston pressing rod and a first sealing connecting piece. Gas can be controlled to enter the pressure cylinder only by arranging one set of electromagnetic valves, oil pressure in oil cavities is transmitted to the piston pressing rod to do work on a workpiece, a sealing ring is arranged at the outer side of the pressure piston in a sleeving manner, and the front end of the pressure piston cannot extrude and damage the sealing ring; and when the pressure of the lower end of the piston pressing rod is up to a certain pressure, an on-off opening in the lower end of the inner side of the pressure piston makes contact with a valve element of an elastic sealing valve, oil way channels of a first oil cavity and the second oil cavity are closed, and a certain protection function is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of gas-liquid increasing devices, and more specifically relates to a convenient gas-liquid boosting cylinder that can prolong the life of a seal. Background technique

[0002] The pressurized cylinder is an improved design combining the advantages of the air cylinder and the oil cylinder. The hydraulic oil is strictly isolated from the compressed air. The piston rod in the cylinder will automatically start when it touches the work piece. Easy to adjust, under the same conditions can reach the high output of the hydraulic machine, low energy consumption, soft landing without damage to the mold, easy to install and the special booster cylinder can be installed at any angle of 360 degrees, takes up little space, has few failures and no temperature rise , long life, low noise, and other core features.

[0003] Based on the above, the traditional booster cylinder needs two sets of solenoid valves, one set of sol...

Examples

Embodiment

[0026] as attached figure 1 to attach Figure 5 Shown:

[0027] The present invention provides a convenient gas-liquid pressurized cylinder that can prolong the life of the seal, including a cylinder body 2; the cylinder body 2 includes an upper fixed cylinder 201 and a lower fixed cylinder 202, and the The upper fixed cylinder 201 is sealed and connected with an upper sealing cover 207, and the middle of the upper sealing cover 207 is provided with a first air port 2071, and the bottom of the lower fixed cylinder 202 is sealed and connected with a lower sealing Cover 208, one end of the lower sealing cover 208 is provided with a second air port 2081, one end of the first sealing connector 203 is also provided with a third air port 2032, and the inside of the upper fixing cylinder 201 is sealed and spaced into an oil chamber by the second sealing connector 2011 2012 communicates with the sliding chamber 2013, oil chamber 1 2012 communicates with the first air port 2071, the ...