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Vacuum air cylinder with valve

A technology of vacuum cylinder and vacuum solenoid valve, which is applied in the field of auto parts

Inactive Publication Date: 2013-12-11
ZHEJIANG EASUN PNEUMATIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects, the object of the present invention is to provide a valved vacuum cylinder with a ball head piston rod to solve the problem that the existing cylinder occupies a large space and is easy to wear , technical problems of dust accumulation

Method used

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  • Vacuum air cylinder with valve
  • Vacuum air cylinder with valve
  • Vacuum air cylinder with valve

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Embodiment Construction

[0029] Under the technical solution described in the summary of the invention, several preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings for ease of understanding, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, well-known methods, procedures, processes, components, etc. have not been described in detail in order to avoid unnecessary confusion to the essence of the present invention.

[0030] Below in conjunction with accompanying drawin...

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Abstract

The invention relates to a vacuum air cylinder with a valve. The vacuum air cylinder comprises a front cover, a rear cover, the vacuum solenoid valve, a piston rod, a piston, a spring and a sealing ring. The front cover, the rear cover and the vacuum solenoid valve are connected in sequence. The piston rod penetrates through the front cover, and part of the piston rod is arranged in the piston. The piston is arranged in a space formed by the front cover and the rear cover. The spring is arranged in the piston. The two ends of the spring are connected with the piston and the rear cover respectively. The sealing ring is connected to the outer edge of the piston is a sleeved mode. The vacuum air cylinder further comprises a first ball nut and a second ball nut. An inner thread of the first ball nut and an outer thread of the second ball nut are connected, wrap the piston and form a containing space. A spherical bearing of the piston rod is placed in the containing space. The vacuum air cylinder with the valve has the advantages of being simple in structure, good in performance, high in reliability, not prone to abrasion and long in service life.

Description

technical field [0001] The invention relates to an automobile part, in particular to a valved vacuum cylinder with a ball head piston rod, which has a simple structure, good performance, high reliability and is not easy to wear. Background technique [0002] Air control devices are often used on light trucks, heavy trucks and other vehicles to improve the performance and safety of the vehicle. For example, the pressure-limiting and leaking auxiliary brake valve device is one of them. The pressure-limiting and leaking auxiliary brake valve device is a part of the vehicle. An auxiliary braking device, especially suitable for commercial vehicles, can greatly reduce the frequency of use of the service brake, and can control the vehicle within a certain safe speed range, prevent vehicle brake failure, and ensure driving safety. The pressure-limiting and air-leakage auxiliary brake valve device relies on the deflection of the push-pull drive shaft of the cylinder or vacuum cylinde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20
Inventor 吴科峰
Owner ZHEJIANG EASUN PNEUMATIC SCI & TECH
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