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Bullet valve core

A technology of bullet head and valve core, applied in the direction of lift valve, valve device, engine components, etc., to achieve the effect of cost saving, good sealing effect and long service life

Inactive Publication Date: 2011-07-27
KUNSHAN SANZHI ELECTRONICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of short service life, poor sealing effect, easy air leakage and low control precision in the prior art, the present invention provides a metal seal Gas, control the high-precision bullet spool

Method used

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Experimental program
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 and 2 As shown, the bullet spool includes a cylinder 1, a hexagonal cavity 5 is provided inside the cylinder 1, and the front end of the cylinder 1 is provided with a bullet-shaped convex body 2, and the bullet-shaped convex body 2 The top is flat. Several circles of external threads 3 are arranged at the front end of the outer circle of the cylinder 1, and two circles of circular bosses 4 are arranged at intervals at the rear end of the outer circle of the cylinder 1. The thickness of the circular bosses 4 of the cylinder 1 is slightly larger than that of the cylinder. The thickness of the external thread 3 of the body 1. A hexagonal cylinder 6 is arranged in the hexagonal cavity 5 of the cylinder 1, and a threaded hole is opened at the center of the hexagonal cylinder 6, and a rotating handle is installed through the threaded hole.

[001...

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PUM

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Abstract

The invention discloses a bullet valve core, which belongs to the field of valve accessories. The bullet valve core comprises a cylinder body, and the cylinder body is provided with a hexagonal cavity therein. The bullet valve core is characterized in that the front end of the cylinder body is provided with a bullet-shaped convex body, the front end of the excircle of the cylinder body is provided with a plurality of circles of external threads, the rear end of the excircle of the cylinder body is provided with two circles of circular dummy clubs at intervals, a hexagonal column body is arranged in the hexagonal cavity of the cylinder body, the center of the hexagonal column body is provided with a threaded hole, and a rotating handle is arranged in the threaded hole. The invention solvesthe problems of short service lift, poor sealing performance, easy leakage and low control precision in the prior art, and provides a bullet valve core which has the advantages of metal sealing, goodsealing effect, high control precision and long service life.

Description

technical field [0001] The invention relates to a valve core, which belongs to the field of valve accessories, in particular to a bullet valve core. Background technique [0002] The spool is a valve part that realizes basic functions such as direction control, pressure control or flow control by means of its movement, and is one of the supporting components widely used in various industries. In the prior art, most of the gas industry uses a valve core that rotates at 90 degrees, and the valve core connects to the gas channel at a certain phase. The ring is easy to age and leak, resulting in a short service life of the product and potential safety hazards. At the same time, the control accuracy is low and the effect of opening or closing the gas valve cannot be achieved. Contents of the invention [0003] In order to solve the problems of short service life, poor sealing effect, easy air leakage and low control precision of the spool in the prior art, the invention pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/38
Inventor 朱新华
Owner KUNSHAN SANZHI ELECTRONICS IND