Unlock instant, AI-driven research and patent intelligence for your innovation.

Valve rod for ship

A marine valve and valve stem technology, applied in valve details, valve devices, cocks including cut-off devices, etc., can solve the problems of reducing the service life of the valve stem, poor sealing, poor fatigue resistance, etc., to enhance the service life and sealing. Good, high anti-fatigue effect

Inactive Publication Date: 2016-05-04
MAANSHAN RUNQI NEW MATERIAL SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, once the valve stem seal is damaged, strong corrosion, volatile, toxic and harmful process media leak from the control valve stem, which will bring serious consequences to the surrounding environment and personal safety, so marine valve stems are often used To solve the above problems, the existing marine valve stem is made of thick stainless steel and pressed into a bellows, which has poor fatigue resistance; when the existing valve stem is connected to the stop valve, the pin is directly nailed into the stem to connect the stop valve to it. , poor sealing, reducing the service life of the valve stem

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
  • Valve rod for ship
  • Valve rod for ship

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0016] Such as Figure 1-Figure 2 An embodiment of the marine valve stem of the present invention is shown. The marine valve stem includes a polished rod section 1 and a threaded section 2 at both ends of the polished rod section 1 and a valve stem head 5. A connecting groove 7 is opened at the top of the valve stem head 5. The polished rod section 1 is provided with a bellows 6 near the head 5 of the valve stem. A protective cover 4 is fixed on the end of the bellows 6 farther from the head 5 of the valve stem. The bellows 6 has a double-layer thread structure. There are at least two bumps 9, ball holes 8 are arranged in the middle of the bumps 9, a tool relief groove 3 is opened between the threaded section 2 and the polished rod section 1, the protective cover 4 is a bowl-shaped structure, the polished rod section 1, the threaded section 2 and the valve stem head 5 are coaxial, the precision of the polished rod section 1 reaches the mirror effect, and the protrusions 9 are ...

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

The invention discloses a valve rod for a ship. The valve rod for the ship comprises a polished rod section, a thread section and a valve rod head, wherein the thread section and the valve rod head are arranged at the two ends of the polished rod section. A connecting groove is formed in the top end of the valve rod head. A corrugated pipe is arranged at the portion, close to the head of the valve rod, of the polished rod section. A protective cover is fixedly arranged at the end, away from the valve rod head, of the corrugated pipe. The corrugated pipe is of a double-layer thread structure. The connecting groove is provided with at least two protruding blocks. A ball hole is formed in the middle of each protruding block. The valve rod is simple and ingenious in structure, the strength of the valve rod is effectively enhanced, the fatigue resistance of the corrugated pipe is improved, and the connection sealing performance of the valve rod and a stop valve is enhanced.

Description

technical field [0001] The invention relates to a valve stem, in particular to a marine valve stem. Background technique [0002] The valve stem is an important part of the valve structure. It is used for transmission. The upper part is connected to the actuator or the handle, and the lower part directly drives the valve core to move or rotate, so as to realize the switch or adjustment of the valve. During use, once the valve stem seal is damaged, strong corrosion, volatile, toxic and harmful process media leak from the control valve stem, which will bring serious consequences to the surrounding environment and personal safety, so marine valve stems are often used To solve the above problems, the existing marine valve stem is made of thick stainless steel and pressed into a bellows, which has poor fatigue resistance; when the existing valve stem is connected to the stop valve, the pin is directly nailed into the stem to connect the stop valve to it. , Poor sealing, reducing...

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
IPC IPC(8): F16K41/10F16K5/08
CPCF16K41/106F16K5/08
Inventor 于森
Owner MAANSHAN RUNQI NEW MATERIAL SCI & TECH