CN2236054Y

CN2236054Y - Swing-butterfly valve

Info

Publication number: CN2236054Y
Application number: CN 95234739
Authority: CN
Inventors: 王珍存
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-25
Filing date: 1995-09-25
Publication date: 1996-09-25
Anticipated expiration: 2005-09-25

Abstract

The utility model discloses a swing-butterfly valve, belonging to the technical field of the work conveyance, wherein, two ports of a valve casing which is provided with a three-way passage are respectively connected with a pair of valve seats which are matched with the two ports; a double butterfly-shaped valve core which is provided with two symmetric plugging conic surfaces and controlled through an articulated mechanism is arranged in the valve casing and is used for completing the assignment of tight plugging of the port of a valve seat. The articulated mechanism in the valve casing is also connected with a ratchet wheel locking device (or a lever swinging handle) which is installed out of the valve casing. In such a way, the articulated mechanism and the ratchet wheel locking device (or a lever swinging handle) jointly complete the control of the swinging angle of the core of the double butterfly-shaped valve core. The valve has simple structure, small resistance of the passage and the tight seal of the valve core. One valve has two purposes. The utility model is suitable for the chemical industry and the installation of pipelines of the technology of the light industry and is capable of reaching the effects of beautiful arrangement of the pipelines, convenient operation and simple use.

Description

Swing-butterfly valve

The utility model discloses a kind of novel pipeline valve, especially a kind of Swing-butterfly valve.It belongs to operation conveying technology field.

In the chemical industry light industry, line transportation grows on trees.The pipe fitting valve is essential parts in many pipelines.Adjusting the normal operation of fluid working medium just because of these pipe fitting valve controls.The distributing fluids flow of triple valve jack point in pipeline, the effect of the flow direction.Yet the pipe fitting valve if use too much will influence the attractive in appearance neat of pipeline, causes operation inconvenience in layout of beam line, use to bother the drawback of inconvenient maintenance.And too much use pipe fitting valve, must cause equipment investment cost too high, also can influence fluid working medium motion speed and quality of product.In a word, it is imperative to improve ducted pipe fitting valve.

It is a kind of easy to operate that the purpose of this utility model will provide exactly, uses reliably Swing-butterfly valve easy to maintenance.This valve has the characteristics of triple valve, and a valve dual-purpose is saved valve.This valve also will have the advantage that resistance is little, tight-closed, manufacturing process is simple, cost is low simultaneously.

Task of the present utility model is finished by following technological scheme: the Swing-butterfly valve of development, it comprises: valve chest, valve seat, spool, seal ring, handgrip.This valve mainly is: at the valve chest that has three-way passageway two passage ports wherein, be connected with a secondary supporting valve seat respectively.Being equipped with in valve chest can be respectively and the tight two dish-shaped spool of this valve seat shutoff.This spool is to control its swing several angle by linkage, and is tight and regulated fluid flows to until reaching a certain valve seat mouth of shutoff.

The two dish-shaped spool that this valve is designed, it is by platen, two dish symmetric bodies, and the conical surface seal circle that compresses of the two folded setting-in and connect solid rocking bar on the symmetry axis of this symmetric body and constitute.This spool has the shutoff conical surface of two symmetries, and it can distinguish shutoff on the valve seat mouth of correspondence.The pendulum angle of this shutoff conical surface in valve chest driven by the swing of rocking bar.

The linkage of the control spool swing that this valve is designed, it is connected in the hinge rotating shaft with pin key by described rocking bar, and is by the rotating shaft case that this rotating shaft hinge is solid on valve chest again, and stretching out on the rotating shaft axle head of valve chest, the ratchet locking device is installed.

The ratchet locking device that this valve is designed, it is fixed on the fixedly rotary sleeve on the valve chest by the ratchet that is connected on the rotating shaft axle head, and the bolt type ratchet of the nut in this cover and this nut of radial penetration and constituting.This bolt type ratchet is to rotate the angle swinging realizes pair dish-shaped spools by the control ratchet.

The linkage of the designed control spool of this valve swing, it can also be that lever on the hinge rotating shaft axle head is waved and positioning pin column is constituted by being connected.After this lever handgrip is the axis swing several angle with this rotating shaft axle head, by being fixed on positioning pin column on the valve chest and the shutoff of be locked spool and valve seat mouth.

Being connected between the designed valve chest of this valve and the valve seat, it can be threaded, and also can be that flange connects, and can also be the one-step casting moulding.Designed two dish-shaped spool, its pendulum angle in valve chest is generally between 60～120 degree.

Embodiment of the present utility model further describes as follows in conjunction with the accompanying drawings: as shown in the figure, Fig. 1 is the structural representation of Swing-butterfly valve.Have among Fig. 1: valve chest 1, valve seat 2, spool 3, seal ring 4, two dish symmetric bodies 5, platen 6, conical surface seal circle 7, rotating shaft axle head 8, rocking bar 9.

Fig. 2 is hinge core, the linkage structural representation (the A-A sectional view of Fig. 1) of Swing-butterfly valve.Have among Fig. 2: valve chest 1, valve seat 2, two dish symmetric bodies 5, rotating shaft axle head 8, rocking bar 9, pin key 10, hinge rotating shaft 11, ratchet 12, rotating shaft case 13, spool bearing pin 14, hinge shaft sleeve 15.

Fig. 3 is Swing-butterfly valve locking handle structure schematic representation (B of Fig. 2 is to view).Have among Fig. 3: valve chest 1, valve seat 2, seal ring 4, rotating shaft axle head 8, ratchet 12, radially screw 16, handgrip 17, fixed base 18, fixedly rotary sleeve 19, nut 20, bolt type ratchet 21.

The Swing-butterfly valve of making, its material are 1G18Ni9Ti's, and its specification is Dg100, and its valve body is divided into valve chest 1 and two valve seats 2 splits design, is connected as a single entity by screw thread.So both be convenient to machining, be convenient to maintain and replace spool 3 again.The two dish-shaped spool of in valve chest 1, installing 3 be by platen 6 compress on the setting-in conical surface seal circle 7 on the pedestal of two dish symmetric bodies 5 and by bolt it.This spool 3 is fixed in rocking bar 9 by being connected by bearing pin 14 again, be linked to be linkage by pin key 10 with hinge rotating shaft 11 again, thereby making two dish-shaped spools is the axle center with the hinge rotating shaft in valve chest 1, and the swing an angle of 90 degrees, thereby respectively 2 mouths of two valve seats are carried out shutoff, the swing of this spool 3 also can compress conical surface seal circle 7 by ducted hydrodynamic pressure to be blocked on 2 mouths of valve seat more closely in operation.At the ratchet pin clamping device of the outer installment of valve chest 1, can push up and pin ratchet 12 by the handgrip 17 formula ratchet 21 that tights a bolt, be pressed on 2 mouths of valve seat at valve chest 1 internal fixation from making two dish-shaped spools 3.Can turn in the pipeline by flange in this valve seat outer end.

The advantage of this Swing-butterfly valve is: owing to adopt two dish-shaped spools, realize that a valve is dual-purpose, Can save a single valve on the deferent, so all have all available this valves of the tee pipe fitting of need place, and save a large amount of Pipe fitting reduces equipment installation cost. But this valve producing in serial form is designed: Dg20,25, 32,40,50,65,80,100,125,150 all size Swing-butterfly valves for the production of. Its Serviceability is good, realizes that layout of beam line is elegant in appearance, easy to operate, safeguards simple. This valve by In housing, turn round rapidly in spool, the materials handling of technological process is switched in time, tight-closed, Improved productive labor efficient.

Claims

1, a kind of Swing-butterfly valve, it comprises valve chest, valve seat, spool, seal ring, handgrip, it is characterized in that: at the valve chest that has three-way passageway two passage ports wherein, be connected with a secondary supporting valve seat respectively; Being equipped with in valve chest can be respectively and the tight two dish-shaped spool of this shutoff, this spool is to control its pendulum several angle by linkage, tight and regulated fluid flows to until reaching a certain valve seat mouth of shutoff.

2, according to the described Swing-butterfly valve of claim 1, it is characterized in that: described two dish-shaped spools, it is by platen, two dish symmetric bodies, and conical surface seal circle and even solid rocking bar on the symmetry axis of this symmetric body that the two folded setting-in compresses constitute, this spool has the two symmetrical shutoff conical surfaces, and it can distinguish shutoff on the valve seat mouth of correspondence, and the pendulum angle of this shutoff conical surface in valve chest driven by the swing of rocking bar.

3, according to claim 1 or 2 described Swing-butterfly valves, it is characterized in that: the linkage of described control spool swing, it is connected in the hinge rotating shaft with pin key by described fork, by the rotating shaft case that this rotating shaft hinge is solid on valve chest again, and, the ratchet locking device is installed stretching out on the rotating shaft axle head of valve chest.

4, according to the described Swing-butterfly valve of claim 3, it is characterized in that: described ratchet locking device, it is by the ratchet that is connected on the rotating shaft axle head, be fixed on the fixedly rotary sleeve on the valve chest, and the bolt type ratchet of the nut in this cover and this nut of radial penetration and constituting, this bolt type ratchet is to rotate the angle swinging of realizing pair dish-shaped spools by the control ratchet.

5, according to claim 1 or 2 described Swing-butterfly valves, it is characterized in that: the linkage of described control spool swing, it can also be that lever on the hinge rotating shaft axle head is waved and positioning pin column is constituted by being connected, after this lever handgrip is the axis swing several angle with this rotating shaft axle head, by being fixed on positioning pin column on the valve chest and the shutoff of be locked spool and valve seat mouth.

6, according to the described Swing-butterfly valve of claim 1, it is characterized in that: being connected between described valve chest and the valve seat, it can be threaded, also can be that flange connects, it can also be the one-step casting moulding, described two dish-shaped spool, its pendulum angle in valve chest is generally between 60～120 degree.