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Novel valve drive device

A technology for driving devices and valves, applied in valve devices, valve operation/release devices, valve details, etc., can solve problems such as insufficient tightness of parts, small applicable temperature range, inconvenient replacement of parts, etc., and achieve accurate assembly positions , compact structure and reliable quality

Inactive Publication Date: 2017-01-04
WUXI CHENGTIANNUO ACTUATOR MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing valve driving device has the following disadvantages in actual use: the parts are not tightly matched, the operation is not stable, the sealing effect is not ideal, the applicable temperature range is small, the replacement of parts is inconvenient, and the service life is short.

Method used

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  • Novel valve drive device

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] like figure 1 As shown, a novel valve driving device of the present invention comprises a cylinder body 1, a cylinder head 2 is provided at one end of the cylinder body 1, and a cylinder base 3 is provided at the other end, and the cylinder head 2 and the cylinder base 3 are fixedly connected by bolts 4, a piston 5 is arranged in the cylinder body 1, a guide ring 6 is arranged on the piston 5, a box body 7 is arranged beside the cylinder base 3, and a box body 7 is arranged on the box body 7 A shift fork 8 is provided inside, a guide transmission assembly 9 is arranged on the shift fork 8, a case cover 10 is provided on the upper part of the box body 7, a shift fork positioning hole 11 is provided on the case cover 10, and a shift fork positioning hole 11 is arranged on the case cover 10. A top cover 12 is provided on the shift fork positioning ...

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Abstract

The invention relates to a novel valve drive device which comprises a cylinder body, wherein a piston is arranged in the cylinder body; a guide ring is arranged on the piston; a shift fork is arranged in a box body; a guide transmission component is arranged on the shift fork; a piston rod is arranged between the piston and the shift fork; a spring tube is arranged beside the box body; a spring seat is arranged in the spring tube; a connecting rod is arranged at the front part of the spring seat and sleeved with a spring; a hydraulic cylinder is arranged in the spring seat; a flange cover is arranged at one end of the spring tube; the connecting rod is fixedly connected with one end of the guide transmission component; one end of the piston rod is fixedly connected with the other end of the guide transmission component, and the other end of the piston rod is connected with the piston; and a limiting bolt is arranged on the front of the box body. The novel valve drive device provided by the invention has the advantages of reasonable structure, steady operation, reliable quality, convenience in maintenance and long service life.

Description

technical field [0001] The invention relates to a driving device, in particular to a valve driving device used in industries such as machinery, petrochemical industry and metallurgy. Background technique [0002] In the industrial fields of petroleum, chemical industry, metallurgy and papermaking in our country, various types of industrial valves are widely used for the control of liquid and gas pipelines. At present, the automatic drive control of the valve mainly has two operating modes: electric and pneumatic. Among them, the valve pneumatic drive device with air as the working medium is most widely used in the automatic drive control of valves due to its advantages of easy access to working medium, low cost, and no pollution. The existing valve driving device has the following disadvantages in actual use: the parts are not closely matched, the operation is not stable, the sealing effect is not ideal, the applicable temperature range is small, the replacement of parts is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/122
CPCF16K31/1221
Inventor 徐晶张莹
Owner WUXI CHENGTIANNUO ACTUATOR MFG CO LTD
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