Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electromagnetic pilot operated valve with internal waterproof structure

A technology of electromagnetic pilot valve and pilot valve, which is applied in the direction of valve shell structure, valve details, valve device, etc., can solve the problems of no waterproof, inconvenient maintenance of electromagnetic pilot valve, jamming, etc., and achieve the effect of fewer processing steps

Inactive Publication Date: 2014-04-09
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The underground environment of the coal mine is harsh, with humidity, high water vapor, and valve products are prone to rust, especially the electromagnetic pilot valve. If the electromagnet in the electromagnetic pilot valve enters the water, it will affect the flexibility of the electromagnet ejector rod. In severe cases, the ejector rod will not reset. even stuck
[0003] For the existing electromagnetic pilot valves in coal mines, some manufacturers are not waterproof, and some imported manufacturers use sealant for waterproofing. The sealant is a one-time seal. After use, it will age and fail, and the pilot valve after the seal failure cannot be replaced locally, it must be replaced as a whole, resulting in great waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electromagnetic pilot operated valve with internal waterproof structure
  • Electromagnetic pilot operated valve with internal waterproof structure
  • Electromagnetic pilot operated valve with internal waterproof structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The electromagnetic pilot valve of the present invention will be described in detail below in conjunction with the accompanying drawings. The electromagnetic pilot valve according to the present invention is as attached figure 1 As shown, it includes the pilot valve body, the pilot valve body includes the end cover, the electromagnet and the copper valve body, the end cover and the copper valve body are fixedly connected at the opposite ends of the electromagnet, and the two valve stems run through the shell of the electromagnet. One end is protected by the end cover, and the other end extends into the copper valve body. During use, the valve stem is driven up and down by controlling the electromagnet to complete the normal function of the electromagnetic pilot valve.

[0022] As we all know, the environment in coal mines is relatively harsh. Coal dust and water vapor can easily infiltrate from the joints between the end cover, the pilot valve body and the electromagnet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An electromagnetic pilot operated valve with an internal waterproof structure comprises an electromagnet. The electromagnet comprises an electromagnet body, an end cover and ejector rods, wherein the electromagnet body comprises a first end face, the end cover is fixedly connected to the first end face of the electromagnet body, a wire connection hole is formed in the first end face of the electromagnet body, the two ejector rods are arranged in the electromagnet body and stretch out from the first end face, two front ejector rod holes corresponding to the two ejector rods and a wire connection cavity corresponding to the wire connection hole are formed in the end cover, a front annular sealing groove is formed in the end cover, the front annular sealing groove surrounds the two front ejector rod holes and the wire connection cavity, and a first sealing element is arranged in the front annular sealing groove.

Description

technical field [0001] The invention relates to an electromagnetic pilot valve, in particular to an electromagnetic pilot valve with a waterproof structure arranged between the inner end cover of the electromagnet and the main body. Background technique [0002] The underground environment of the coal mine is harsh, humid, high in water vapor, and valve products are prone to rust, especially the electromagnetic pilot valve. If the electromagnet in the electromagnetic pilot valve enters the water, it will affect the flexibility of the electromagnet ejector rod. In severe cases, the ejector rod will not reset. Even stuck. [0003] For the existing electromagnetic pilot valves in coal mines, some manufacturers are not waterproof, and some imported manufacturers use sealant for waterproofing. The sealant is a one-time seal. After use, it will age and fail, and the pilot valve after the sealing failure cannot be replaced locally, but must be replaced as a whole, resulting in gre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F16K27/12
CPCF16K31/06F16K27/12F16K41/02
Inventor 韦文术王伟刘晓萌徐鹏
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com