CN2191331Y - Multifunctional external-regulating ball valve - Google Patents

Abstract

The utility model belongs to the field of valves and is composed of a valve body, a sealing ring, a ball body, a pressing ring, a movable sleeve, a regulating bolt, an upper cover, a scale plate, a valve rod, a handle, etc. A multifunctional external-regulating ball valve of the utility model is characterized in that each inlet and outlet of the valve body are totally provided with a semicircle keystone ring which is respectively tightly matched between the pressure ring and the movable sleeve which is provided with the sealing ring, and the regulating bolt is respectively connected with the semicircle keystone ring through the valve body. When the leakage of the utility model occurs, specific pressure of a sealing surface out of the valve is regulated again. So the defect that when the leakage of the ball valve occurs, the valve must be dismounted and the sealing ring must be replaced, and then the ball valve can be used right along in prior art is solved. So the utility model is applicable to pipe-line systems which have stricter requirement for sealing, such as gas, liquid, oil, etc.

Description

Multifunctional external-regulating ball valve

The utility model belongs to valve field, is used in the blast furnace industry water, and soft water and industrial water mix with cooling system and gas, sewage, wet goods is to the cut-out on the higher pipe-line system of sealing requirements and become method, apparatus.

At present domestic a lot of valve producer has produced floating ball valve and fixing ball valve, but these valves in use, when sealed cover ratio pressure guarantees, will not leak, can't solve and regulate the specific pressure of sealing surface, must dismantle valve replacing seal ring and just can continue to use.China's utility model patent " spraying coal powder ball valve ", its notification number is CN2084540U, though this model utility has adopted two butterfly springs to make arbitrfary point specific pressure on the seal ring identical and can compensate automatically at valve gateway place, improved the sealability of ball valve, prolonged working life, but because its butterfly spring requirement on machining accuracy height, compensation rate is limited, and must dismantle valve replacing seal ring when taking place to leak just can continue to use, therefore it is bad fundamentally not solve ball valve sealing, and the problem of leaking takes place.

The purpose of this utility model is exactly the ball valve that will solve prior art can't be regulated the shortcoming of seal ring specific pressure and can't regulate sealing surface when taking place to leak after installation a specific pressure, must dismantle valve and change the problem that seal ring just can continue to use, a kind of multi-functional investigation mission outside the city or town ball valve is provided, this ball valve also can be used on the pipeline of two kinds of different mediums simultaneously, reach good airproof performance, life-span is long, and is safe and reliable, the requirement that function is many.

The utility model provides multi-functional investigation mission outside the city or town pipeline ball valve, it partly is made of valve body, seal ring, spheroid, pressure ring, movable sheath, adjusting bolt, loam cake, scale plate, valve rod, handle etc., each import and export that it is characterized in that valve body all has a semicircle cambridge ring closely to be assemblied in pressure ring respectively and has between the movable sheath of seal ring, and regulates bolt and join with above-mentioned semicircle cambridge ring respectively by valve body.

When the utility model is that a three-way pipeline with three import and export is when using ball valve, it partly is made of valve body, seal ring, spheroid, pressure ring, movable sheath, adjusting bolt, loam cake, scale plate, valve rod, handle, semicircle cambridge ring etc., all there is a semicircle cambridge ring closely to be assemblied in pressure ring respectively and has between the movable sheath of seal ring at each import and export of valve body, and regulate bolt and link with above-mentioned semicircle cambridge ring respectively, it is characterized in that above-mentioned spheroid is that three faces are offered circular hole by valve body.

When the utility model is that a four-way pipeline with four import and export is when using ball valve, it is by valve body, seal ring, spheroid, pressure ring, movable sheath, regulate bolt, loam cake, scale plate, valve rod, handle, semicircle cambridge rings etc. partly constitute, all there is a semicircle cambridge ring closely to be assemblied in pressure ring respectively and has between the movable sheath of seal ring at each import and export of valve body, and regulating bolt links with above-mentioned semicircle cambridge ring respectively by valve body, it is characterized in that above-mentioned spheroid is for offering circular hole on four sides, have a dividing plate that its inside is separated in the spheroid, making spheroid is that both direction communicates; Angle is 60 ° except that one between two paths, and its excess-three angle is all 100 °.

In addition, the utility model also is applicable to two-way valve, or the above multi-pass ball valve of four-way.

Advantage of the present utility model is, makes seal ring and spheroid on the movable sheath form pre-applied force by regulating pressure ring when ball valve assembles, and can adjust this precharge pressure by regulating pressure ring, guarantees spheroid and sealing surface compact.After ball valve is installed on the pipeline, when discovery has leakage phenomenon, can be outside by adjusting the semicircle cambridge ring of regulating in the bolt drive valve at valve, the movable sheath that seal ring is housed is moved forward and backward, readjust the specific pressure between seal ring and the spheroid, solved the leakage problem in the valve running, convenient and reliable, prolonged the life-span of valve, overcome ball valve in the prior art and after installation, can't regulate the shortcoming of seal ring specific pressure, and the shortcoming that when leaking appears in valve, can't under running state, handle.

Fig. 1 is the whole sectional drawing of a kind of specific embodiments of the present utility model.

Fig. 2 is that the M of Fig. 1 is to view.

Fig. 3 is the whole sectional drawing of another kind of specific embodiments of the present utility model.

Fig. 4 is that the N of Fig. 3 is to view.

Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.

A specific embodiment of the present utility model is a tee ball valve, it is by valve body (1), semicircle cambridge ring (2), seal ring (3), spheroid (4), pressure ring (5), movable sheath (6), adjusting bolt (7), loam cake (8), scale plate (9), valve rod (10), handle formations such as (11), all there is a semicircle cambridge ring closely to be assemblied in pressure ring respectively and has between the movable sheath of seal ring at each import and export of valve body, and have three to regulate bolts and link with above-mentioned three semicircle cambridge rings respectively by valve body.When valve assembles, by regulating pressure ring (5) movable sheath (6) that seal ring (3) are housed is moved forward and backward, mix up the specific pressure between seal ring (3) and the spheroid (4) in advance; When valve is installed on the pipeline, if when finding leakage phenomenon is arranged, can be outside by regulating bolt (7) adjustment semicircle cambridge ring (2) at valve, the movable sheath (6) that seal ring (3) are housed is moved forward and backward, readjust the specific pressure between seal ring (3) and the spheroid (4), to guarantee the sealability of valve.In addition, spheroid (4) is the mouth that three faces are offered circular port, and spheroid (4) can pass through valve rod (10) and rotate 360 °, changes 90 ° again and just produces a kind of circulation status, has five kinds of functional statuses, and promptly A ' end is logical with C ' end; A ' end is logical with B ' end; B ' end is logical with C ' end; A ', B ', C ' three end all-pass; And five kinds of states of full cut-off.Handle is equipped with scale plate on (11), and angle of revolution can both demonstrate the direction of stream.

Another specific embodiment of the present utility model is a four way ball valve, it is by regulating bolt (1 '), kink (2 '), seal ring (3 '), spheroid (4 '), valve body (5 '), valve rod (6 '), handle (7 '), pressure ring (8 '), semicircle cambridge ring (9 '), valve gap (10 '), part such as dividing plate (11 ') constitutes, all there is a semicircle cambridge ring (9 ') closely to be assemblied in pressure ring (8 ') respectively and has between the movable sheath (2 ') of seal ring (3 ') at each import and export of valve body, and have four to regulate bolts (1 ') and link with above-mentioned four semicircle cambridge rings (9 ') respectively by valve body (5 ').When valve assembles, by regulating pressure ring (8 ') movable sheath (2 ') that seal ring (3 ') are housed is moved forward and backward, mix up the specific pressure between seal ring (3 ') and the spheroid (4 ') in advance; When above-mentioned valve is installed on the pipeline, in pressure testing and running, if when finding leakage phenomenon is arranged, can be outside by regulating bolt (1 ') adjustment semicircle cambridge ring (9 ') at valve, the movable sheath (2 ') that seal ring (3 ') are housed is moved forward and backward, readjust the specific pressure between seal ring (3 ') and the spheroid (4 '), make to keep sealing between seal ring (3 ') and the spheroid (4 ').

In addition, the spheroid of the four way ball valve described in the present embodiment (4 ') is offered the mouth of circular port for the four sides, there is a dividing plate (11 ') that its inside is separated in the spheroid (4 '), make spheroid (4 ') inner for both direction communicates, like this can be in a valve simultaneously by two kinds of different mediums and do not disturb mutually.Angle is 60 ° except that one between two paths, and its excess-three angle is all 100 °, just produces a kind of circulation status for 100 ° by valve rod (6 ') revolution.One has five kinds of functional statuses, and promptly the A end is held with B, and the D end is connected simultaneously with the C end; The A end is logical with the D termination; The C end is logical with the D termination; The A end is logical with the B termination; Five kinds of states of full cut-off.Handle is equipped with scale plate on (7 '), and angle of revolution can both demonstrate the direction of stream.

By said structure as can be known, the utility model is because can be in the outside specific pressure of regulating between seal ring (3 ') and the spheroid (4 ') of valve, when fluctuating, pressure medium also can guarantee sealing, and can pass through two kinds of different media simultaneously, therefore application area of the present utility model is quite extensive, and long service life, convenient operating maintenance.

In two above-mentioned specific embodiments, the adjusting bolt of valve is manual tune, can also be designed to modes such as pneumatic, electronic or hydraulic regulation according to actual conditions.

In addition, the utility model can also be made two logical external regulation type ball valves with two import and export or the how logical external regulation type ball valve with a plurality of import and export more than four.

Claims (3)

1, a kind of pipeline is with multi-functional investigation mission outside the city or town ball valve, partly constitute by valve body, seal ring, spheroid, pressure ring, movable sheath, adjusting bolt, loam cake, scale plate, valve rod, handle etc., each import and export that it is characterized in that valve body all has a semicircle cambridge ring closely to be assemblied in pressure ring respectively and has between the movable sheath of seal ring, and regulates bolt and link with above-mentioned semicircle cambridge ring respectively by valve body.

2, multi-functional investigation mission outside the city or town ball valve as claimed in claim 1 is characterized by a three-way pipeline ball valve with three import and export, and its spheroid is that three faces are offered circular hole.

3, multi-functional investigation mission outside the city or town ball valve as claimed in claim 1 is characterized by a four-way pipeline ball valve with four import and export, and its spheroid offers circular hole for the four sides, has a dividing plate that its inside is separated in the spheroid, and making spheroid is that both direction communicates; Angle is 60 ° except that one between two paths, and its excess-three angle is all 100 °.

Images