CN2212695Y

CN2212695Y - Four-way cock

Info

Publication number: CN2212695Y
Application number: CN 94212514
Authority: CN
Inventors: 舒军雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-26
Filing date: 1994-05-26
Publication date: 1995-11-15
Anticipated expiration: 2004-05-26

Abstract

The utility model relates to a four-way plug valve which is used in the technological process of the fluid. The utility model is composed of a valve body 1, a cylindrical plug 3, a valve cover 6, a hand wheel 12, etc. The disadvantages of complicated structure, low sealing pressure and difficult manufacture of the original four-way plug valve are overcome. The utility model has the advantages of simple structure, high sealing pressure, reliable seal, portable switch, convenient maintenance, etc. One four-way plug valve can replace three gate valves or ball valves.

Description

Four-way cock

The utility model relates to a kind of fourway plug valve

Normally used fourway plug valve generally all adopts conical structure, and sealing means is the sealing of metal and Metal Contact, and its shortcoming is that conical stopper contacts tension then the stopper commentaries on classics is motionless with valve body, and contacted pine then is easy to generate leakage.Adopt the fourway plug valve of birdcage Sealing soft seal not to be reported so far between a kind of cylindrical plug and the valve body.

The purpose of this utility model is in order to overcome the shortcoming of prior art, and the fourway plug valve of a kind of cylindrical plug of design, and it is a kind of simple in structure, and sealing load height, sealing are reliable, operate light, easy access, long-lived fourway plug valve.

The utility model is achieved in that

The utility model is on the basis of former conical fourway plug valve, change original conical stopper into cylindrical plug, and between cylindrical plug and valve body, adopt the soft seal of birdcage Sealing, replace that metal and Metal Contact seal firmly between original stopper and the valve body; Change into and adopt three open loops to connect locking adopting bolt to be connected locking between original valve body and the valve gap, thus it be in a kind of have simple in structure, the sealing load height, sealing is reliable, operate lightly, just overhauls and the fourway plug valve of life-span length.

The utility model and original technology are relatively, owing to change the conical stopper of original fourway plug valve into cylindrical plug, and employing birdcage Sealing soft seal between cylindrical plug and valve body, adopt three open loops locking between valve gap and the valve body, so it is simple in structure that it has, the sealing load height, sealing is reliable, operate light, easy access, advantage such as durable in use.

The utility model is provided by following examples, below in conjunction with accompanying drawing the utility model is described in detail.

Accompanying drawing 1: fourway plug valve structural representation;

Accompanying drawing 2: the A--A sectional view of accompanying drawing 1;

Accompanying drawing 3: birdcage seal configuration schematic representation;

4: three open loop structure schematic representation of accompanying drawing.

The utility model is by valve body 1, birdcage Sealing 2, and cylindrical seal stopper 3,4,9, three open loops 5 of " O " shape seal ring, valve gap 6, seal washer 7, direction sign 8, roundlet nut 10, bolt 11, handwheel 12 parts such as grade are formed (more than be among Fig. 1 label).

The utility model is that a kind of fourway plug valve that is used for the fluid technological process is by valve body 1, birdcage Sealing 2, cylindrical plug 3, three open loops 5, parts such as valve gap 6 and handwheel 12 are formed, it is characterized in that above the cylindrical plug of described fourway plug valve the birdcage Sealing being housed, the birdcage Sealing is by four hoops " O " shape circle bar 14(Fig. 3) and eight (or four) diameter of axle justify bar 13(Fig. 3 to " O " shape) pass through mutually and form a whole birdcage Sealing; Three open loops are that a metal cirque is opened three vertical fracture 15(Fig. 4 that are mutually 120 °) disconnect and formation.

Assembling method of the present utility model is: earlier birdcage Sealing 2 and " O " shape seal ring 4 are enclosed within above the cylindrical plug 3, " O " shape seal ring 9 is contained in " O " shape seal groove of valve gap 6; Then cylindrical plug is packed in the valve body, with left sheet 16(Fig. 4 of three rings) and right sheet 17(Fig. 4) in the three open loop grooves of the valve body of packing into, refill following 18(Fig. 4 of three open loops); Seal washer 7 is attached on the end face on valve body top, with bolt 11 valve gap 6 is fixed on above the valve body 1 then; Adorn direction sign, handwheel and little round nut at last, so far the utility model is all assembled and is finished.

Valve body of the present utility model, cylindrical plug, three open loops, when being used for aggressive medium, can make valve gap with stainless steel; Can use the Common Straight Carbon Steel manufacturing when being used for oil, gas, aqueous medium, but the chemical Ni-plating layer protection should be adopted in the surface that contacts with medium.When being used for oil gas water, birdcage Sealing and " O " shape seal ring can use the manufacturing of oil resistant high-temperature resistant rubber; When being used for soda acid salt corrosion medium, the rubber manufacturing of available acidproof alkali salt, also available teflon manufacturing.

When leaking in the utility model takes place, replaceable birdcage Sealing, when leaking outside, then the birdcage Sealing 2, and " O " shape seal ring 4,9 and seal washer 7 must all be changed.

The utility model is used for the oil-gas gathering and transferring technology flow process, and a fourway plug valve can replace three gate valves or ball valve.

Claims

1, a kind of fourway plug valve that is used for the fluid technological process, form by parts such as valve body 1, birdcage Sealing 2, cylindrical plug 3, three open loops 5, valve gap 6, handwheels 12, it is characterized in that above the cylindrical plug of described fourway plug valve birdcage confidential paper being housed, the birdcage Sealing is passed through mutually by four hoops " 0 " shape circle bar 14 and eight warp-wises " 0 " shape circle bar 13 and forms a whole birdcage Sealing.

2, fourway plug valve according to claim 1 is characterized in that between valve body 1 and the valve gap 6 adopting three open loops locking, and three open loops are that a metal cirque is opened three and is mutually vertical fracture 15 of 120 ° and forms.