CN2522689Y - Rail type friction-free ball valve - Google Patents
Rail type friction-free ball valve Download PDFInfo
- Publication number
- CN2522689Y CN2522689Y CN 01257043 CN01257043U CN2522689Y CN 2522689 Y CN2522689 Y CN 2522689Y CN 01257043 CN01257043 CN 01257043 CN 01257043 U CN01257043 U CN 01257043U CN 2522689 Y CN2522689 Y CN 2522689Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- spheroid
- valve body
- guide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000021615 conjugation Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A track type friction-free ball valve comprises a valve body with a single-face valve seat, a guide rail sleeve is arranged in the valve body, a pair of track grooves for controlling the movement of a valve rod is formed in the guide rail sleeve, the valve rod is installed in the guide rail sleeve, a pin shaft is fixedly arranged on the valve rod, two ends of the pin shaft extend into the track grooves of the guide rail sleeve, the lower end of the valve rod is a conjugate curved surface, a conjugate curved surface control hole is formed in the upper end of the ball body, two conjugate pin columns are horizontally and oppositely arranged on the inner circumference of the hole, the lower end of the valve rod extends between the two conjugate pin columns, a hinge pin is arranged at the lower end of the ball body, a supporting hole is formed in the bottom of the valve body corresponding to the hinge pin, and the ball body is installed in the valve body. The conjugate curved surface at the lower end of the valve rod and the track groove for controlling the movement of the valve rod are used for matching movement to drive the ball body to incline and roll, so that the sealing surface of the ball body is separated from the valve seat to rotate to realize frictionless opening and closing of the valve.
Description
Relate to the field
The utility model relates to the valve of using on the pipeline, particularly be a kind of orbit ball valve.
Background technique
Existing orbit ball valve mostly is made of valve body, the spheroid that is provided with the spiral fluted valve rod and is connected the valve rod lower end that is arranged in the valve body.All adopt the inclined-plane to realize that spheroid departs from the sealing surface of valve body and Open valve and the contact seal when closing in valve body and spheroid position.The shortcoming one of this track ball valve is because inclined-plane movement locus and valve rod spiral fluted movement locus are not exclusively synchronous, thereby cause the wearing and tearing aggravation of position, valve rod inclined-plane and can cause to a certain degree interference, spheroid is that swing departs from sealing surface of seat, also causes movement interference easily.Thereby influence the actual life and the effect of valve; The 2nd, it is big that ramp structure exists between valve rod and the spheroid the asynchronous frictional force that causes, to valve rod requirement of strength height.
The model utility content
The purpose of this utility model is the above-mentioned shortcoming that overcomes existing track ball valve, provides a kind of rail mounted of guaranteeing that jam flexibly, can not appear in the motion between valve rod and the spheroid not have the friction ball valve.
The purpose of this utility model is to adopt with complete synchronous this technological scheme of particular curve of valve rod track by the contact position at spheroid and valve rod to realize, its concrete formation comprises valve body, be located at valve rod and the spheroid that is arranged on the valve rod lower end in the valve body, it is characterized in that described valve body is the valve body with a single face valve seat, in valve body, be provided with a guide rail sleeve, on this guide rail sleeve, offer the rail slot of pair of control stem movement, this rail slot is made of one section straight-line groove and the one section spiral chute that is connected the straight-line groove upper end, described valve rod is installed in this guide rail sleeve, be fixed with a bearing pin on the valve rod, the two ends of bearing pin are stretched and are put in the rail slot of guide rail sleeve, the lower end of valve rod is a conjugation curved surface, this conjugate surface is made of a tilting section and a straightway, the upper end of described spheroid has a conjugation curved surface control hole, this conjugate surface control hole has a hole that supplies valve rod to stretch into of vertically opening in the spheroid upper end, level is to being provided with two conjugation pins on the inner circumference in this hole, the valve rod lower end is stretched between two conjugation pins of the conjugate surface control hole of spheroid, the lower end of spheroid has a hinged pin, bottom at valve body is provided with a bearing hole corresponding to this hinged pin, and spheroid is installed in the valve body by this hinged pin.
Working principle of the present utility model is to utilize the conjugate surface of valve rod lower end and the routing motion of the rail slot of control stem movement, drives spheroid and tilts, and rolls, and rotation realizes the opening and closing of valve.
Open valve: be rotated counterclockwise valve rod, bearing pin operates in the straightway of rail slot, the drive valve rod rises, this moment, spheroid produced inclination under the effect of the tilting section of the conjugate surface of valve rod, rolled, and the hinged pin of spheroid lower end rolls in the bearing hole of valve body, the support spheroid tilts, rolling makes the ball seal emaciated face from valve seat, keeps the centre of sphere to overlap all the time with the valve seat central axis simultaneously, does not move interference.Along with the continuation of valve rod is risen, the spiral section of bearing pin injection groove, valve rod is under the effect of the spiral section of rail slot, when continuing rising, begin to rotate and drive the spheroid rotation of having lifted off a seat, this moment, the hinged pin of spheroid lower end rotated in the bearing hole of valve body, support spheroid rotation, thus realize frictionless motion between ball seal face and the sealing surface of seat and Open valve.
Throttle down: the movement process of throttle down is opposite with opening sequence, and whole process also is a frictionless motion.In the last moment of closing, the ball seal face makes the ball seal face press to sealing surface of seat and produces seal pressure under the rolling action of the hinged pin of effect and lower end in bearing hole of the tilting section of conjugate surface.Because the adaptation function of hinged pin supporting curved surface, make the seal pressure uniformity everywhere on the sealing pair, thereby realize reliably closing of valve.
The utility model compared with prior art has following advantage:
1. the contact position of this ball body of valve and valve rod adopts and the running orbit of valve rod rail slot synchronous conjugate surface fully, and the track that spheroid press design code tilts, and rolls and sealing surface of seat disengages the opening and closing that rub of nothing that the back rotation realizes valve.Eliminated fully because the two the asynchronous wearing and tearing that cause and friction, guaranteed between valve rod and the spheroid flexible operation, jam can not appear, frictional force is little between valve rod and the spheroid, the valve rod requirement of strength is not high, reduced the difficulty of manufacturing, significantly reduce the extrusion stress of track surface of contact, guaranteed the low torque operation of valve, prolonged the working life of valve.On the other hand, the frictionless motion between the sealing pair has guaranteed that sealing pair does not have wearing and tearing when rotating, also make the life-span of valve increase greatly.
2. this valve adopts the design of single valve seat, the mechanical compression sealing configuration, eliminated temperature and pressure and changed the influence that can may cause, widened the Applicable scope of ball valve, eliminated valve seat and spheroid locking phenomenon that traditional double valve base sealing system may occur product hermeticity;
3. in opening process, when spheroid and sealing surface of seat disengage, or when moment, spheroid did not contact with valve seat as yet before closing, this moment, liquid streamed in the annular of 360 ° of valve base surface formation rapidly, swiftly flowing medium can the automated cleaning sealing surface and is prevented that the solid matter in the medium from building up in the valve base sealing zone, thereby guarantees that valve seal is reliable;
4. this valve has adaptation function, can guarantee whole sealing pair seal pressure uniformity everywhere;
5. this valve has automatic compensation function, after the long-time running when erosive wear appears in sealing pair, conjugate surface effect lower seal pair can progressive compensate for wear part, guarantee the reliable sealing of valve long-time running.
Provide embodiment below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 structural representation of the present utility model
The structural representation of Fig. 2 valve rod and bearing pin
Fig. 3 guide rail sleeve structural representation
The rear view of Fig. 4 Fig. 3
The conjugate surface control hole structural representation of Fig. 5 spheroid
The plan view of Fig. 6 Fig. 5
Station schematic representation before Fig. 7 spheroid is lifted off a seat, rotated
Embodiment
Referring to Fig. 1, valve body is made of jointly valve body body 1, valve gap 3, support 7, and valve rod 4 is located in the valve body, and handwheel 8 is installed on the valve rod, and above-mentioned each parts are all continued to use original structure.One single face valve seat 10 is arranged in valve body body 1, spheroid 2 is arranged on the valve rod lower end, in valve body, be provided with a guide rail sleeve 6, referring to Fig. 3～4, on this guide rail sleeve 6, offer the rail slot 11 of pair of control stem movement, this rail slot 11 is made of one section straight-line groove A and the one section spiral chute B that is connected straight-line groove A upper end, described valve rod 4 is installed in this guide rail sleeve 6, be fixed with a bearing pin 5 on the valve rod 4, the two ends of bearing pin 5 are stretched and are put in the rail slot 11 of guide rail sleeve 6, the lower end of valve rod 4 is a conjugation curved surface, and referring to Fig. 2, this conjugate surface is made of an inclination C and a straightway D.The upper end of described spheroid 2 has a conjugation curved surface control hole, referring to Fig. 5～6, this conjugate surface control hole has a hole 12 that supplies valve rod to stretch into of vertically opening in the spheroid upper end, level is to being provided with two conjugation pins 9 on the inner circumference in this hole, valve rod 4 lower ends are stretched in two conjugation pins, the lower end of spheroid 2 has a hinged pin 13, is provided with a bearing hole 14 in the bottom of valve body body 1 corresponding to this hinged pin, and spheroid 2 is installed in the valve body body 1 by this hinged pin.Fig. 7 has provided the spheroid of this valve and has lifted off a seat, rotated preceding station schematic representation.
Claims (1)
1. rail mounted does not have the friction ball valve, comprise valve body, be located at valve rod and the spheroid that is arranged on the valve rod lower end in the valve body, it is characterized in that described valve body is the valve body with a single face valve seat, in valve body, be provided with a guide rail sleeve, on this guide rail sleeve, offer the rail slot of pair of control stem movement, this rail slot is made of one section straight-line groove and the one section spiral chute that is connected the straight-line groove upper end, described valve rod is installed in this guide rail sleeve, be fixed with a bearing pin on the valve rod, the two ends of bearing pin are stretched and are put in the rail slot of guide rail sleeve, the lower end of valve rod is a conjugation curved surface, this conjugate surface is made of a tilting section and a straightway, the upper end of described spheroid has a conjugation curved surface control hole, this conjugate surface control hole has a hole that supplies valve rod to stretch into of vertically opening in the spheroid upper end, level is to being provided with two conjugation pins on the inner circumference in this hole, the valve rod lower end is stretched between two conjugation pins of the conjugate surface control hole of spheroid, the lower end of spheroid has a hinged pin, bottom at valve body is provided with a bearing hole corresponding to this hinged pin, and spheroid is installed in the valve body by this hinged pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257043 CN2522689Y (en) | 2001-12-27 | 2001-12-27 | Rail type friction-free ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257043 CN2522689Y (en) | 2001-12-27 | 2001-12-27 | Rail type friction-free ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522689Y true CN2522689Y (en) | 2002-11-27 |
Family
ID=33665890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257043 Expired - Fee Related CN2522689Y (en) | 2001-12-27 | 2001-12-27 | Rail type friction-free ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522689Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373606A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Elastic stop valve and operation method thereof |
| CN105333169A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric ball valve structure |
| CN106875838A (en) * | 2017-03-14 | 2017-06-20 | 谢宇翔 | Ice energy device |
-
2001
- 2001-12-27 CN CN 01257043 patent/CN2522689Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373606A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Elastic stop valve and operation method thereof |
| CN105333169A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Electric ball valve structure |
| CN106875838A (en) * | 2017-03-14 | 2017-06-20 | 谢宇翔 | Ice energy device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |