CN201129498Y

CN201129498Y - Circular top valve

Info

Publication number: CN201129498Y
Application number: CNU2007201852339U
Authority: CN
Inventors: 李巍; 马云芳; 李志伟; 宋鸿鹏; 陈学文
Original assignee: 李巍
Current assignee: Yingkou Zhongtong Control Equipment Manufacturing Co., Ltd.
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2008-10-08
Anticipated expiration: 2017-12-27

Abstract

A dome valve is applied in a pneumatic transmission system for resolving the problems of prior dome valve as non-uniform aeration affecting seal effect, which comprises a valve body, a ball, a valve seat, a valve seat core and a valve rod, wherein the valve seat core is provided with an air inlet and an air outlet and is made from light aluminum alloy, the aperture of the air inlet and outlet is 1-3mm. The valve seat core is made from light aluminum alloy with low weight and rigidity, which can be drilled with small hole to reduce the aperture of the air inlet and outlet from 5mm to 1-3mm, thereby uniformly aerating and improving the seal effect of the dome valve.

Description

Dome valve

Technical field:

The utility model relates to the dome valve of using in a kind of air-transport system.

Background technique:

Existing dome valve, the valve seat core is that white steel is made, its weight is big, hardness is big, is not suitable for boring aperture on the valve seat core, so is generally Φ 5mm into and out of the pore aperture on the valve seat core, because it is bigger into and out of the aperture in hole, and number is few, spacing is big, in use exists inflation inhomogeneous, influences sealing effect.

Summary of the invention:

In order to solve the problem of above-mentioned existence, the utility model provides a kind of and inflates evenly, the dome valve of good sealing effect; The purpose of this utility model is achieved through the following technical solutions: dome valve, comprise valve body, spheroid, valve seat, valve seat core, valve rod, be shaped on into and out of pore on the valve seat core, described valve seat core is a light aluminum alloy valve seat core, into and out of the aperture of pore at Φ 1～3mm.

The beneficial effects of the utility model: the utility model adopts said structure, the valve seat core adopts the light aluminum alloy material to make, it is in light weight, hardness is little, can bore aperture, therefore be reduced to Φ 1～3mm into and out of the aperture of pore by in the past Φ 5mm, reach the uniform purpose of inflation, improve the seal of dome valve.

Description of drawings:

Fig. 1 is the structural representation of dome valve;

Fig. 2 is the partial enlarged drawing of I among Fig. 1;

Fig. 3 is the stereogram of dome valve.

Embodiment:

Dome valve, comprise valve body 1, valve rod 2, spheroid 3, upper valve body 6 is shaped on air-filled pore 10 on upper valve body 6, valve rod 2 tops are connected with conversion catcher 8, and valve body 1 is connected with upper valve body 6, middle valve body 7 is connected with upper valve body 6, valve seat 5 is installed between upper valve body 6, middle valve body 7, valve seat core 4 is housed in valve seat 5, valve seat core 4 adopts the light aluminum alloy material to make, be shaped on the valve seat core into and out of pore 9, can make Φ 1～3mm as required into and out of the aperture of pore 9.

Claims

1, dome valve comprises valve body, spheroid, valve seat, valve seat core, valve rod, is shaped on into and out of pore on the valve seat core, it is characterized in that: described valve seat core is a light aluminum alloy valve seat core, into and out of the aperture of pore at Φ 1～3mm.