CN203940027U - The low friction ball valve of a kind of telescopic type - Google Patents
The low friction ball valve of a kind of telescopic type Download PDFInfo
- Publication number
- CN203940027U CN203940027U CN201420281234.3U CN201420281234U CN203940027U CN 203940027 U CN203940027 U CN 203940027U CN 201420281234 U CN201420281234 U CN 201420281234U CN 203940027 U CN203940027 U CN 203940027U
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- China
- Prior art keywords
- valve
- spheroid
- conversion block
- skewed slot
- low friction
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- Expired - Lifetime
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 23
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002226 simultaneous effect Effects 0.000 description 1
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- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a kind of low friction ball valve of telescopic type that unique mechanical keys compact form closing property has again two way sealed function that has, comprise the valve body and the spool that stud with valve seat, spool comprises valve rod, conversion block and the spheroid being formed by two hemisphere, spool is arranged in valve body, in spheroid, form the through hole that a level connects, valve body have hold spheroid rotation with airtight/open the inner chamber of two ends valve seat outlet, valve rod upper end has spiral guide slot, valve rod lower end is fixedly connected with conversion block, spheroid upper end has the cylindrical flange of inserting for conversion block, spheroid cylindrical flange inwall arranges a pair of bearing pin, conversion block has for skewed slot in a couple that in spheroid cylindrical flange, bearing pin penetrates, in a couple for conversion block, skewed slot upper end is the skewed slot shrinking from top to bottom, lower end is vertical slots, the spiral guide slot upper end of valve rod upper end is vertical slots, lower end is spiral chute.Advantage: the one, embody exclusive mechanical keys compact form closing property and there is again two way sealed function; The 2nd, adapt to bidirectional fluid medium, guaranteed that two way sealed do not leak, improved the using scope of product.
Description
Technical field
The present invention relates to a kind of low friction ball valve of telescopic type that unique mechanical keys compact form closing property has again two way sealed function that has.
Background technique
Ball valve is a kind of valve that is driven spherical valve core and rotated around the axis of valve rod by valve rod.Be mainly used in blocking or connect the medium in pipeline, be widely used in every profession and trade.
A kind of ball valve, comprise there is the valve seat of valve pocket, the control gear that is embedded the spool in described valve pocket and is connected with described spool, described spool has the main flow hole that level connects, described control gear drives described spool to rotate in described valve pocket for this ball valve, the unlatching of controlling or close, on described spool, also there is the first segment discharge orifice and the second section discharge orifice that connect and be positioned at described main flow hole both sides vertical with described main flow hole, in described first segment discharge orifice, be provided with throttle valve; Described throttle valve comprises throttle valve seat and active section flow valve core, has throttle valve seat hole and the throttle valve seat chamber of axial perforation in described throttle valve seat; Described active section flow valve core is slidably installed in described throttle valve seat chamber, on described active section flow valve core, has throttling spool hole; Between the outer wall of described throttle valve seat and described first segment discharge orifice, there are a plurality of conduction holes that offer circumferential distribution on the outer wall of gap and described throttle valve seat; Described active section flow valve core for sliding described conduction hole opened or closed in described throttle valve seat chamber; Described throttle valve seat has stop part near the one end in described main flow hole, for limiting the sphere of activities of described active section flow valve core.Its deficiency is: one-way sealing, and ball valve frictional force is large, during rotation, requires great effort.
Summary of the invention
Purpose of design: avoid the deficiency in background technique, design a kind of low friction ball valve of telescopic type that unique mechanical keys compact form closing property has again two way sealed function that has.
Design proposal: in order to realize above-mentioned purpose of design, the present invention is in design: the low friction ball valve of a kind of telescopic type, comprise the valve body and the spool that stud with valve seat, spool comprises valve rod, conversion block and the spheroid being formed by two hemisphere, spool is arranged in valve body, in spheroid, form the through hole that a level connects, valve body have hold spheroid rotation with airtight/open the inner chamber of two ends valve seat outlet, valve rod upper end has spiral guide slot, valve rod lower end is fixedly connected with conversion block, spheroid upper end has the cylindrical flange of inserting for conversion block, spheroid cylindrical flange inwall arranges a pair of bearing pin, conversion block has for skewed slot in a couple that in spheroid cylindrical flange, bearing pin penetrates, in a couple for conversion block, skewed slot upper end is the skewed slot shrinking from top to bottom, lower end is vertical slots, the spiral guide slot upper end of valve rod upper end is vertical slots, lower end is spiral chute.
The low friction ball valve of telescopic type, described body cavity two studs with two valve seats to outlet port.
The low friction ball valve of telescopic type, conversion block is provided with two interior skewed slots, two respectively corresponding two hemisphere of interior skewed slot, two bearing pins are separately fixed on corresponding hemisphere through interior skewed slot.
The low friction ball valve of telescopic type, valve body bottom is provided with the cylinder type groove of sphere, and under hemisphere, along being provided with protruding spherical surface body, under two hemisphere, the protruding spherical surface body on edge is embedded in groove jointly.
The low friction ball valve of telescopic type, two hemisphere form a spheroid, sealing when the phase cross surface of two hemisphere intersects.
The low friction ball valve of telescopic type, is applicable to crude oil, rock gas and various gas and various clear matter liquid and other medium.
The low friction ball valve of telescopic type, the through hole of spheroid and ball seal face are 90 degree angles.
The low friction ball valve of telescopic type, while driving valve, rotates after ball seal face is separated with sealing surface of seat two-way simultaneous again, goes to 90 bottom valve standard-sized sheets; While closing valve, by first spinning ball 90 degree, after putting in place, just make ball seal face and the two-way closure of sealing surface of seat.
The low friction ball valve of telescopic type, after ball seal face departs from, mobile medium can be moving along two way sealed surface current, and the impurity on sealing surface is rinsed well.
The low friction ball valve of a kind of telescopic type, when needs valve opening, first by mobile valve rod, valve rod is moved up, cause straight pin in valve rod spiral guide slot from varying to the spiral notch of spiral guide slot in the vertical slots of spiral guide slot, being inconjunction with the interior skewed slot making on conversion block and conversion block also moves up, cause bearing pin from interior skewed slot skewed slot move to the vertical notch of interior skewed slot, bearing pin in conversion block in two skewed slots can move toward valve center along channel direction along with skewed slot moves up, two hemisphere are shunk, the sealing surface of the spheroid sealing surface of lifting off a seat, on valve rod, move, cause valve rod to rotate up along straight pin along spiral guide slot, drive conversion block rotates up, bearing pin also rotates along conversion block, bearing pin drives spheroid rotation, until stop after 90-degree rotation, at this moment bearing pin drives spheroid 90-degree rotation, spheroid through hole is connected after valve passage, valve is opened completely.
The low friction ball valve of a kind of telescopic type, when needs valve closing, first by the final controlling element that turns clockwise, the rotation of band ovable valve stem, when valve rod is rotated down, drive the interior skewed slot on conversion block and conversion block to be also rotated down, make again the bearing pin in interior skewed slot also in rotary moving, two hemisphere rotate under the effect of spiral guide slot, spheroid 90-degree rotation enters closed position, spheroid rotation stops, along with continuing to move down conversion block, valve rod also continues to move down, bearing pin in the interior skewed slot of conversion block can be moved by valve center along channel direction outward along with skewed slot moves down, along with being fixed on the movement of two bearing pins on two hemispheres, the sealing surface of two hemispheres has compressed two sealing surface of seats simultaneously, valve closing.
The present invention compares with background technique, and the one, embody exclusive mechanical keys compact form closing property and there is again two way sealed function; The 2nd, adapt to bidirectional fluid medium, guaranteed that two way sealed do not leak, improved the using scope of product; The 3rd, mobile medium can be moving along two way sealed surface current, and the impurity on spheroid and sealing surface of seat is rinsed well; The 4th, crushing stream is few, has improved pipeline system efficiency; The 5th, reduced the working life that moment of torsion has increased various final controlling element, reduced the wearing and tearing of sealing surface, lengthened the working life of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the low friction ball valve of telescopic type while closing.
Structural representation when Fig. 2 is the low friction ball valve unlatching of telescopic type.
In figure, 1 is valve rod, the 2nd, straight pin, the 3rd, spiral guide slot, the 4th, conversion block, the 5th, bearing pin, the 6th, spheroid, the 7th, valve seat.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-2.The low friction ball valve of a kind of telescopic type, comprise the valve body and the spool that stud with valve seat 7, spool comprises valve rod 1, conversion block 4 and the spheroid 6 being formed by two hemisphere, spool is arranged in valve body, the through hole that level of the interior formation of spheroid 6 connects, valve body have hold spheroid rotation with airtight/open the inner chamber of two ends valve seat 7 outlets, valve rod 1 upper end has spiral guide slot 3, valve rod 1 lower end is fixedly connected with conversion block 4, spheroid 6 upper ends have the cylindrical flange of inserting for conversion block, spheroid 6 cylindrical flange inwalls arrange a pair of bearing pin 5, conversion block 4 has for skewed slot in a couple that in spheroid cylindrical flange, bearing pin penetrates, in a couple for conversion block 4, skewed slot upper end is the skewed slot shrinking from top to bottom, lower end is vertical slots, spiral guide slot 3 upper ends of valve rod 1 upper end are vertical slots, lower end is spiral chute.
The low friction ball valve of telescopic type, studs with two valve seats 7 in described valve body, be embedded on valve channel.
The low friction ball valve of telescopic type, conversion block 4 is provided with two interior skewed slots, two respectively corresponding two hemisphere of interior skewed slot, two bearing pins 5 are separately fixed on corresponding hemisphere through interior skewed slot.
The low friction ball valve of telescopic type, support is provided with two straight pins 2, inserts respectively in two spiral guide slots 3 of valve rod.
The low friction ball valve of telescopic type, valve body bottom is provided with the cylinder type groove of sphere, and under hemisphere, along being provided with protruding spherical surface body, under two hemisphere, the protruding spherical surface body on edge is embedded in groove jointly.
The low friction ball valve of telescopic type, sealing when the phase cross surface of 6, two hemisphere of two hemisphere spheroids of composition intersects.
The low friction ball valve of telescopic type, is applicable to crude oil, rock gas and various gas and various clear matter liquid and other medium.
The low friction ball valve of telescopic type, the through hole of spheroid 6 and spheroid 6 sealing surfaces are 90 degree angles.
The low friction ball valve of telescopic type, while driving valve, rotates after first separated with valve seat 7 sealing surface two-way simultaneouses by final controlling element spheroid 6 sealing surfaces again, goes to 90 bottom valve standard-sized sheets; While closing valve, by first spinning ball 90 degree, after putting in place, just make spheroid 6 sealing surfaces and the two-way closure of valve seat 7 sealing surface.
The low friction ball valve of telescopic type, after spheroid 6 sealing surfaces depart from, mobile medium can be moving along two way sealed surface current, and the impurity on sealing surface is rinsed well.
The low friction ball valve of a kind of telescopic type, when needs valve opening, first by mobile valve rod 1, valve rod 1 is moved up, cause straight pin 2 in valve rod 1 spiral guide slot 3 from varying to the spiral notch of spiral guide slot 3 in the vertical slots of spiral guide slot 3, being inconjunction with the interior skewed slot making on conversion block 4 and conversion block 4 also moves up, cause bearing pin 5 from interior skewed slot skewed slot move to the vertical notch of interior skewed slot, bearing pin 5 in conversion block 4 in two skewed slots can move toward valve center along channel direction along with skewed slot moves up, two hemisphere are shunk, the sealing surface of spheroid 67 sealing surfaces of lifting off a seat, on valve rod 1, move, cause valve rod 1 to rotate up along straight pin 2 along spiral guide slot 3, drive conversion block 4 to rotate up, bearing pin 5 is also along conversion block 4 rotations, bearing pin 5 drives spheroid 6 rotations, until stop after 90-degree rotation, at this moment bearing pin 5 drives spheroid 6 90-degree rotations, spheroid 6 through holes are connected after valve passage, valve is opened completely.
The low friction ball valve of a kind of telescopic type, when needs valve closing, first by the final controlling element that turns clockwise, 1 rotation of band ovable valve stem, when valve rod 1 is rotated down, drive the interior skewed slot on conversion block 4 and conversion block 4 to be also rotated down, make again the bearing pin 5 in interior skewed slot also in rotary moving, two hemisphere rotate under the effect of spiral guide slot 3, spheroid 6 90-degree rotations enter closed position, spheroid 6 rotations stop, along with continuing to move down conversion block 4, valve rod 1 also continues to move down, bearing pin 5 in the interior skewed slot of conversion block 4 can be moved by valve center along channel direction outward along with skewed slot moves down, along with being fixed on the movement of the bearing pin 5 on two hemispheres, the sealing surface of two hemispheres has compressed valve seat 7 sealing surfaces simultaneously, valve closing.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention simple text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.
Claims (4)
1. the low friction ball valve of telescopic type, comprise the valve body and the spool that stud with valve seat, it is characterized in that: spool comprises valve rod, conversion block and the spheroid being formed by two hemisphere, spool is arranged in valve body, in spheroid, form the through hole that a level connects, valve body have hold spheroid rotation with airtight/open the inner chamber of two ends valve seat outlet, valve rod upper end has spiral guide slot, valve rod lower end is fixedly connected with conversion block, spheroid upper end has the cylindrical flange of inserting for conversion block, spheroid cylindrical flange inwall arranges a pair of bearing pin, conversion block has for skewed slot in a couple that in spheroid cylindrical flange, bearing pin penetrates, in a couple for conversion block, skewed slot upper end is the skewed slot shrinking from top to bottom, lower end is vertical slots, the spiral guide slot upper end of valve rod upper end is vertical slots, lower end is spiral chute.
2. the low friction ball valve of a kind of telescopic type according to claim 1, is characterized in that: described body cavity two studs with two valve seats to outlet port.
3. the low friction ball valve of a kind of telescopic type according to claim 1, is characterized in that: conversion block is provided with two interior skewed slots, two respectively corresponding two hemisphere of interior skewed slot, and two bearing pins are separately fixed on corresponding hemisphere through interior skewed slot.
4. the low friction ball valve of a kind of telescopic type according to claim 1, is characterized in that: valve body bottom is provided with the cylinder type groove of sphere, and under hemisphere, along being provided with protruding spherical surface body, under two hemisphere, the protruding spherical surface body on edge is embedded in groove jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281234.3U CN203940027U (en) | 2014-05-29 | 2014-05-29 | The low friction ball valve of a kind of telescopic type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281234.3U CN203940027U (en) | 2014-05-29 | 2014-05-29 | The low friction ball valve of a kind of telescopic type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940027U true CN203940027U (en) | 2014-11-12 |
Family
ID=51859341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281234.3U Expired - Lifetime CN203940027U (en) | 2014-05-29 | 2014-05-29 | The low friction ball valve of a kind of telescopic type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203940027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982672A (en) * | 2014-05-29 | 2014-08-13 | 挺宇集团有限公司 | Shrinking-type low-friction ball valve |
-
2014
- 2014-05-29 CN CN201420281234.3U patent/CN203940027U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982672A (en) * | 2014-05-29 | 2014-08-13 | 挺宇集团有限公司 | Shrinking-type low-friction ball valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
|
| CX01 | Expiry of patent term |