CN2365463Y

CN2365463Y - Guide shutoff valve

Info

Publication number: CN2365463Y
Application number: CN 98250045
Authority: CN
Inventors: 王庆森; 董绍恩
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-15
Filing date: 1998-12-15
Publication date: 2000-02-23
Anticipated expiration: 2008-12-15

Abstract

The utility model relates to a novel guide shutoff valve. A centering device is additionally arranged in a valve clack and a valve cover in the existing shutoff valve to make the valve clack not swing to generate a gap, and the side of the valve cover is additionally provided with a guide device to make the valve clack not rotate axially. Therefore, scratch and impression can not be generated between the valve clack and a sub-opening of a shutoff hole of a valve body, and then leakage because of the looseness between the valve clack and the sub-opening of the valve body can be avoided. Because the novel guide shutoff valve is not easy to leak, the valve has wide application range and has obvious superiority in the application of caustic, inflammable and explosive media.

Description

Novel guiding type stop valve

The utility model relates to a kind of antileakaging novel guiding type stop valve.

At present, freely be connected between known shutoff valve structure, its flap and valve rod, valve rod makes the flap rotation in playing closed procedure, also form easily simultaneously and prolong axial runout, make flap be difficult for ending concentric and location, hole like this, very easily causing leakage by Confucius's mouth cut with valve body.

The purpose of this utility model provides a kind of novel guiding type stop valve.Flap is tightly cooperated by Confucius's mouth with valve body, solved leakage problem.

The purpose of this utility model is achieved in that in flap 2 bottoms installs a centring means, its centring means is to be connected with flap 2 by centring means dish 3 usefulness bolts 4, like this valve rod 6 move up and down drive that flap 2 moves up and down and can accurately be with valve body 1 concentric by the hole, and very tight.So just avoided flap 2 to swing and the slit of generation.In addition, for fear of flap 2 produce axial rotation cause flap 2 and valve body by the rim of the mouth in hole by cut, on valve gap 5, bore a hole, with blocking flap 2 axial rotation in the guiding keyway of locating stud 13 on flap 2.Therefore valve body also just can not cut by the rim of the mouth in hole.

Owing to adopt such scheme, can make this novel guiding stop valve very tight, do not become flexible, do not leak, simple in structure, easy manufacturing.Obvious to the energy-saving and water-saving effect, especially the superiority to these valves of medium such as liquid, gas such as corrosivity is strong, inflammable, explosive seems more outstanding.

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

Fig. 1 is an overall diagram of the present utility model

Fig. 2 is the utility model theory structure enlarged view

Fig. 3 is the utility model concentric device dish

Fig. 4 is the utility model concentric device and flap connecting bolt

Fig. 5 is the utility model guide positioning pin

Fig. 6 is the guiding keyway of flap 2

1 valve body, 2 flaps, 3 centring means dishes, 4 connecting bolts, 5 valve gaps, 6 valve rods, 7 back-up rings, 8 are mended cover, 9 sealed caps, 10 adjusting screw, 11 stuffing box glands, 120 type circles, 13 locating studs, 14 handwheels among the figure

Valve body 1, valve gap 5 usefulness bolts connect in Fig. 1, make back-up ring 7, mend cover 8, sealed cap 9, adjusting screw 10, the close cover 11 of envelope, O type circle 12 tightly compacting be sealed and matched.Driving valve rods 6 usefulness screw threads by handwheel 14 drives flap 2 and moves up and down and open or close valve body and stop or circulation medium by the hole.

Centring means 3 is tightened with flap 2 usefulness bolts 4 and is connected in embodiment illustrated in fig. 3.Assurance makes flap 2 and valve body end the concentric slit that do not produce, hole.

Fig. 5 and embodiment illustrated in fig. 6 on valve gap 5, establish locating stud of hole installing 13 these locating studs 13 and flap 2 guiding keyway sliding fits, prevent that flap axial rotation and valve body from by the rim of the mouth in hole generation cut, making the valve seepage.

Claims

1, a kind of novel guiding type shutoff valve is equiped with centring means and guiding device in valve body, it is characterized in that centring means is connected with flap 2 with bolt 4, and guiding device is connected with valve gap 5 usefulness locating studs 13.

2, novel guiding valve according to claim 1 is characterized in that: at centring means of the lower end of flap 2 installing, this device is formed and is connected with screw with centring means dish 3 by bolt 4.

3, novel guiding shutoff valve according to claim 1 is characterized in that: establish the hole locating stud 13 of packing at valve gap 5 and make guide rail, surely close with the guiding groove of offering on flap 2, prevented flap 2 axial rotation like this.