CN2150405Y

CN2150405Y - Three-way butterfly valve

Info

Publication number: CN2150405Y
Application number: CN 92239068
Authority: CN
Inventors: 程军; 张春生
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-09
Filing date: 1992-11-09
Publication date: 1993-12-22
Anticipated expiration: 2002-11-09

Abstract

Disclosed is a valve which parts liquid in a pipeline, comprising a valve body, butterfly covers, a center shaft, valve cover shafts, a valve cover, a sealing ring, three transmission gears (or three connecting rod mechanisms, etc.), etc. The two butterfly cover are fixed on the valve body through a butterfly cover shaft, and the three transmission gears are respectively arranged on the center shaft and the two valve cover shafts. The utility model is essentially a three-way butterfly valve which integrates two single butterfly valves as a whole.

Description

Three-way butterfly valve

The utility model relates to a kind of valve that ducted liquid is shunted, and it is used for oil, chemical industry, pharmacy, fields such as metallurgy.

Our employed triple valve mostly is a ball valve at present, but ball valve has a lot of deficiencies.The one, volume is big, and the thing followed is that raw materials consumption is many, the processing charges height.The 2nd, ball valve often occurs rushing down the leakage phenomenon when High Temperature High Pressure, and the Three-way butterfly valve volume is little, and price is low, uses as usual during High Temperature High Pressure.

The purpose of this utility model provides a kind of Three-way butterfly valve, and it can not only use when low-temp low-pressure, can also use under High Temperature High Pressure, and dwindle volume, has reduced cost.

The purpose of this utility model is to realize like this.It is mainly by valve body, butterfly lid, axis, butterfly lid axle, valve gap, seal ring.Compositions such as three driving gears (also form such as available linkage mechanism).Two butterflies lid is fixed on the valve body by butterfly lid axle, and three driving gears are installed in respectively on axis and two the butterflies lid axles.When rotating middle shaft, rotate simultaneously by two butterflies of gear driven lid axle, rotate thereby drive the butterfly lid, reach on one side the butterfly lid and close, another side butterfly lid is opened simultaneously, or the both sides purpose opening simultaneously and close.In addition, the moment of rotation when opening and closing owing to butterfly valve so will be very laborsaving, when being used as mortor operated valve or hydrovalve, will reduce the cost of drive unit much smaller than the moment of rotation of ball valve greatly when being used as manually operated valve.

Owing to adopted such scheme, Three-way butterfly valve promptly to have volume little, price is low, and the advantage that high-temperature and high-pressure conditions uses down as usual also can reduce the volume of drive unit simultaneously, reduces product price.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1. be the Three-way butterfly valve elevation cross-sectional view.

Fig. 2. be the Three-way butterfly valve plan view.

Fig. 1,1. valve bodies among Fig. 2.2. gear A.3. butterfly is covered axle A.4. gear C.5. axis.6. gear B.7. butterfly is covered axle B.8. valve gap.9. butterfly is covered B.10. seal ring.11. butterfly lid A.

Fig. 1, among Fig. 2, when clockwise rotating axis 5 and gear C 4, gear A 2 and gear B 6 just rotate counterclockwise, butterfly is covered A11 and butterfly lid B9 rotates counterclockwise simultaneously thereby drive.When turning to a special position, on one side covering B9, butterfly lid A11 and butterfly open, Yi Bian close simultaneously, or both sides open or close (this is relevant with original mounting point) simultaneously as requested.When rotating counterclockwise axis 5, the action situation of butterfly lid by that analogy.

The utility model Three-way butterfly valve opens and closes the driving mechanism (being gear) of butterfly lid herein; only for inventing a kind of form that artificial realization invention provides; play other driving mechanism of same purpose is not difficult to find out on basis of the present invention with the present invention; do not enumerate one by one at this, but within protection scope of the present invention.

Claims

1, a kind of three-way valve with valve body, it is characterized in that it also has two butterfly lids, two butterfly lid axles, axis, three driving gears, and seal ring and valve gap, two butterfly lids are fixed on the valve body by butterfly lid axle, three driving gears are installed in respectively on axis and two the butterflies lid axles, just two single butterfly valves are installed in and form a Three-way butterfly valve on the same valve body.