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

Butterfly valve

A butterfly valve and valve body technology, applied in the direction of lift valves, valve devices, engine components, etc., can solve problems such as easy rotation, insufficient limit, and influence on the accuracy of medium flow in and out, and achieve precise and stable control.

Pending Publication Date: 2018-04-17
KAIRUITE VALVE
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limit of this limit structure is not stable enough, and it is easy to rotate, which in turn affects the accuracy of the flow rate of the medium in and out.

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
  • Butterfly valve
  • Butterfly valve
  • Butterfly valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The accompanying drawings show the technical solution of the present invention and its embodiments, and the relevant details and working principles of the embodiments will be further described below in conjunction with the accompanying drawings.

[0012] refer to figure 1 , figure 2 , image 3 , Figure 4 As shown, the butterfly valve provided by the present invention includes a valve body and a valve stem 1, the lower end of the valve stem 1 is provided with a valve plate 2, and the ring end faces of the left and right sides of the valve plate 2 are provided with sealing ring placement grooves 30, and the sealing ring is placed An annular sealing ring is arranged in the groove 30, and the setting of the annular sealing ring can improve the sealing performance of the joint between the valve plate and the valve body. The valve body includes an upper valve body 3 and a lower valve body 4, and the upper valve body 3 and the lower valve body 4 is connected and fixed by ...

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 butterfly valve comprising a valve body and a valve rod. The lower end of the valve rod is provided with a valve plate, and the upper end of an upper valve rod is provided with a spiral groove of a worm structure; the upper end of the upper valve rod is engaged with a driving turbine on the side, and the driving turbine is provided with a driving mechanism; the lower endof a lower valve rod is provided with a polygonal slot, and a lower valve body is fixedly provided with a limit cover which is provided with a polygonal hole matched with the polygonal slot; a polygonal clamping column penetrates the polygonal hole, is matched with the polygonal slot, and can be inserted into the polygonal slot; the polygonal clamping column is provided with stop edges located below the limit cover internally, and reset springs are arranged among the interior of the limit cover, the top of the limit cover and the stop edges; and the polygonal clamping column is clamped into the polygonal slot under the action of the reset springs without external force, so that the lower valve rod and the valve plate are prevented from rotating. According to the butterfly valve, the rotation angle of the valve plate can be limited more accurately and stably, and the medium flow is controlled more accurately and stably.

Description

technical field [0001] The invention relates to a butterfly valve. Background technique [0002] The traditional butterfly valve includes a valve body and a valve stem. A valve plate is arranged at the lower end of the valve stem. The valve body includes an upper valve body and a lower valve body, and the upper valve body and the lower valve body are fixed by bolts. The limitation of the position of the valve plate of the butterfly valve is mainly realized by the structure of the worm, wherein the worm is the upper part of the upper valve stem. However, the limit of this limit structure is not stable enough, and it is easy to rotate, which in turn affects the accuracy of the medium in and out flow. Contents of the invention [0003] In view of the deficiencies in the background technology, the technical problem to be solved by the present invention is to provide a butterfly valve which can more accurately and stably limit the rotation angle of the valve plate. [0004] T...

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): F16K1/22F16K1/32
CPCF16K1/224F16K1/32
Inventor 张清明李运龙张磊甘风绳
Owner KAIRUITE VALVE