CN105757277A - Top entry ball valve - Google Patents
Top entry ball valve Download PDFInfo
- Publication number
- CN105757277A CN105757277A CN201610207992.4A CN201610207992A CN105757277A CN 105757277 A CN105757277 A CN 105757277A CN 201610207992 A CN201610207992 A CN 201610207992A CN 105757277 A CN105757277 A CN 105757277A
- Authority
- CN
- China
- Prior art keywords
- valve
- ball valve
- mounting type
- type ball
- conversion block
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0626—Easy mounting or dismounting means
- F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
Abstract
The invention relates to a top entry ball valve and mainly solves the problem that an existing top entry ball valve is complex to open and close, has limited applicable range and has high cost. A valve body and a bonnet form a cavity which is provided with a valve element and a valve seat inside, a support is connected to the upper end of the bonnet, the valve element comprises a valve stem, a switch block and a ball composed of two half-balls, the lower end of the valve stem is fixedly connected with the switch block, the switch block is connected with the upper end of the ball composed of the half-balls, the lower end of the ball composed of the half-balls is connected with a fork rotary shaft through a lower pin, the lower end of the fork rotary shaft is provided with an adjusting structure, two roller sets are connected to the upper portion of the switch block and are inserted respectively in spiral grooves of the bonne which have a spiral groove slide bushing, the upper end of the valve stem is sleeved with a dust cover, and the valve seat is provided with a channel. The top entry ball valve has good sealing performance, the valve element moves up and down as a whole during opening and closing so that the structure is simple, the top entry ball valve is applicable to a medium with impurities or particles, is widely applicable, and has small opening and closing torque, low manufacture cost and long service life.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of upper-mounting type ball valve.
Background technology
Ball valve is a kind of valve driving spherical valve core the axis around valve rod to rotate by valve rod.It is mainly used in blocking or connect the medium in pipeline, is widely used in every profession and trade.
Ball valve on existing market mainly has float ball ball valve, fixing spherical ball valve, V-arrangement ball valve, and swinging ball valve also has double panel-type ball valve etc..Float ball ball valve and fixing spherical ball valve open and close torque are very big, and adapted executor is costly, and service life is low.V-arrangement ball valve and swinging ball valve are all one direction shut-off structures, and when double panel-type ball valve opens and closes, spool entirety moves up and down structure complexity and is not suitable for for impurity medium.
Summary of the invention
In order to overcome the deficiency of background technology, the present invention provides a kind of upper-mounting type ball valve, mainly solves existing upper-mounting type ball valve and opens and closes the problem that complexity, restricted application and cost are high, and the dismounting of this gas upper-mounting type ball valve is easy to maintenance, good seal performance, during keying, spool entirety moves up and down simple in construction, it is adaptable in the medium with impurity or particulate matter, applied widely, helical structure action is more smooth and easy easily, open and close torque is little, and cost of manufacture is low, long service life.
The technical solution adopted in the present invention is: a kind of upper-mounting type ball valve, including valve body, support and spool, described valve body forms cavity with valve gap, body cavity two studs with two valve seats to exit, spool is set in cavity, valve gap upper end connects support, described spool includes valve rod, conversion block and the spheroid being made up of two hemispheres, described valve rod lower end is fixing with conversion block to be connected, conversion block is connected with the spheroid upper end being made up of hemisphere, the described spheroid lower end being made up of hemisphere is connected with fork-shaped rotating shaft by lower bearing pin, described fork-shaped rotating shaft lower end is provided with adjustment structure, described conversion block top is connected to two set rollers, described roller is fixed on conversion block by roller shaft, described two rollers insert in the helicla flute being placed on valve gap with helicla flute sliding sleeve respectively, described valve rod upper end is equipped with dirt-proof boot, described valve seat offers groove.
Described conversion block system both sides lack flat body for circle, conversion block offers skewed slot in two, in described two, skewed slot upper end is the skewed slot shunk from top to bottom, lower end is vertical slots, said two hemisphere upper end has the circle inserted for conversion block and lacks through hole and the first flange around raised up, being respectively provided with a upper pin on first flange of two hemisphere, described two upper pins respectively penetrate in two in skewed slot, make conversion block be connected with spheroid；Described hemisphere lower end is provided with the second flange, second flange connects two lower bearing pins, fork-shaped rotating shaft upper end is a thallus and is provided with two parallel grooves, (fork-shaped rotating shaft upper end be a flat body and be provided with two bottom arcs become two grooves to upper end open), two lower bearing pins are respectively placed in the groove of fork-shaped rotating shaft upper end.
Described fork-shaped rotating shaft is inserted in the centre bore of body base by composite bearing, and described adjustment structure includes regulating block and gland, and regulating block is threadeded with the central hole of valve body, and gland is placed in regulating block and is secured by bolts on valve body.
The described spheroid being made up of two hemispheres forms a through through hole of level, and described valve gap adopts bolt and Flange joint in valve body.
Described valve rod upper end trapezoidal thread screws in nut and is connected with executor.
The invention has the beneficial effects as follows: owing to taking technique scheme, it is effectively increased the sealing property between pilot valve lobe and guide valve seat and between main valve clack and main valve seat, pilot valve lobe and main valve clack will not produce leakage when closing, after valve, the pressure medium of low pressure chamber is stable, does not have fluctuation.
The present invention effectively improves existing upper-mounting type ball valve and opens and closes the problem that complexity, restricted application and cost are high, the dismounting of this gas upper-mounting type ball valve is easy to maintenance, good seal performance, during keying, spool entirety moves up and down simple in construction, it is adaptable in the medium with impurity or particulate matter, applied widely, helical structure action is more smooth and easy easily, open and close torque is little, and cost of manufacture is low, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the close-up schematic view of Fig. 1.
Fig. 3 is the partial sectional view of conversion block 7 in Fig. 1.
Fig. 4 is the structural representation of hemisphere 8 in Fig. 1.
Fig. 5 is the structural representation of rotating shaft 9 in Fig. 1.
Fig. 6 is the structural representation of sliding sleeve 15 in Fig. 1.
In figure 1, valve body；2, valve gap；3, support；4, spool；5, valve seat；6, valve rod；7, conversion block；71, interior skewed slot；8, hemisphere；81, the first flange；82, the second flange；9, rotating shaft；91, groove；10, lower bearing pin；11, regulating block；12, gland；13 rollers；14, roller shaft；15, sliding sleeve；16 helicla flutes；17, dirt-proof boot；18, groove；19, upper pin；20 adjustment structures；21, executor.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated.
If Fig. 1 is in conjunction with shown in Fig. 2 to Fig. 6, a kind of upper-mounting type ball valve, including valve body 1, valve gap 2, support 3 and spool 4, described valve body 1 and valve gap 2 form cavity, and valve body 1 inner chamber two studs with two valve seats 5 and spool 4 to exit, valve gap 2 upper end connects support 3, described valve gap 2 central authorities are provided with cylindrical cavity, and cylindrical cavity is built with sliding sleeve 15, with helicla flute 16 on described sliding sleeve 15, described support 3 covers on band helicla flute sliding sleeve 15, and spool 4 is against below band helicla flute sliding sleeve 15.Described spool 4 includes valve rod 6, conversion block 7 and the spheroid being made up of two hemispheres 8, described valve rod 6 lower end is fixing with conversion block 7 to be connected, conversion block 7 is connected with the spheroid upper end being made up of hemisphere 8, the described spheroid lower end being made up of hemisphere 8 is connected with fork-shaped rotating shaft 9 by lower bearing pin 10, described fork-shaped rotating shaft 9 lower end is provided with adjustment structure 20, described conversion block 7 is both sides is that circle lacks flat body, roller 13 and roller shaft 14 are overlapped equipped with two in arc surface direction, both sides, top, roller 13 is connected on roller shaft 14, both sides arc surface matched in clearance is in band helicla flute sliding sleeve 15 endoporus, it is located in the helicla flute 16 that the roller 13 on the arc surface of both sides inserts respectively with helicla flute sliding sleeve 15.
Described valve rod 6 upper end is equipped with dirt-proof boot 17, and dirt-proof boot 17 is cylindrical tube shape structure, and valve rod 6 outer surface and dirt-proof boot 17 inner surface are provided with space, it is to avoid corroded by the dust impurity in environment and corrosive gas material.
Described valve seat 5 offers groove 18, plays cushioning effect, reduce impact time valve seat 5 is welded on valve body 1 and time valve body 1 is connected with pipeline, protect sealing surface, it is ensured that valve sealing stability, prolongation valve service life.
Offering skewed slot 71 in two on conversion block 7, in described two, skewed slot 71 upper end is the skewed slot shunk from top to bottom, and lower end is vertical slots, skewed slot 71 corresponding two hemisphere 8 respectively in two.
Said two hemisphere 8 upper end has the circle inserted for conversion block 7 and lacks through hole and the first flange 81 around raised up, first flange 81 of two hemisphere is respectively provided with a upper pin 19, described two upper pins 19 respectively penetrate in two in skewed slot 71, on two hemisphere, two upper pins respectively penetrate in two in skewed slot, make conversion block 7 be connected with spheroid.
Described hemisphere 8 lower end is provided with the second flange 82, second flange connects two lower bearing pins 10, fork-shaped rotating shaft 9 is placed in bottom valve body 1, fork-shaped rotating shaft 9 upper end be a flat body and be provided with two bottom arcs become two grooves 91 to upper end open, fork-shaped rotating shaft 9 lower end is circular shaft, fork-shaped rotating shaft 9 lower end circular shaft is inserted in valve body 1 centre bore, preferential selection composite bearing connects fixing, two lower bearing pins 10 are respectively placed in the groove 91 of fork-shaped rotating shaft upper end, the accumulation of impurity or particulate matter in medium is avoided in the setting of this attachment structure, increases the service life.
Described fork-shaped rotating shaft 9 is inserted in the centre bore bottom valve body 1 by composite bearing,
Described adjustment structure 20 includes regulating block 11 and gland 12, regulating block 11 is threadeded with the central hole of valve body 1, gland 12 is placed in regulating block 11 and is secured by bolts on valve body 1, axial location by threaded adjustment regulating block 11, to ensure the spheroid position at longitudinal axial direction, and then guarantee being correspondingly arranged of ball seal face and valve seat 5 sealing surface, and not misplacing, sealing property is stable.
The described spheroid being made up of two hemispheres 8 forms a through through hole of level, valve body 1 have hold spheroid rotate with airtight/open the inner chamber of two ends valve seat 5 outlet, described valve gap 2 adopts Flange joint in bolt and valve body.
Described valve rod 6 upper end trapezoidal thread screws in nut and is connected with executor 21.
Executor 21 transmission nut rotates, being rotated by nut makes valve rod 6 do upper and lower axially-movable, the conversion block 7 being connected with valve rod 6 does 90 degree of rotations by the roller 13 on roller shaft 14 while axially moving under sliding sleeve 15 helicla flute 16 guide effect, while conversion block 7 moves up and down, it is fixed on the upper pin 19 on hemisphere 8 in conversion block 7 under the effect of skewed slot 71, the sealing surface making hemisphere 8 plays, with valve seat 5 sealing surface, the effect separating with closing, and namely plays valve opening and closedown.The lower bearing pin 10 being fixed on the bottom of hemisphere 8 is contained on fork-shaped rotating shaft 9, and fork-shaped rotating shaft 9 is followed hemisphere 8 and rotated and rotate, and lower bearing pin 10 is the strong point of hemisphere 8.
Compared with prior art, one is upper dress formula structure easy accessibility to the present invention, as long as spool 4 structural member can all be taken out by dismounting valve gap 2 bolt, valve body 1 can not can be carried out maintenance by underground pipelines, and on-line maintenance is very convenient；Two is that dirt-proof boot 17 and built-in helicla flute 16 arrange and avoid being corroded by the dust impurity in environment and corrosive gas material, the matched roller 13 of built-in helicla flute 16 is that coefficient of rolling friction reduces, make helical structure action more smooth and easy lighter, longer service life, moreover external structure changes, valve total height reduces, and total height is than identical bore gate valve, and swing type orbit ball valve all reduces；Three be open and close without abrasion: during valve opening, ball seal face rotates after separating with sealing surface of seat again, goes to 90 bottom valve standard-sized sheets, when closing valve, by elder generation spinning ball 90 degree, just makes ball seal face and valve seat 5 sealing surface close after putting in place；Four is low torque operation: during because of open and close, without friction therefore valve rod 6 rotates or axially-movable all very comfortables for spheroid and valve seat 5, it is possible to the executor 21 of selection of small moment of torsion, reduces deployment cost；Five is that double-valve-seat 5 designs: double-valve-seat 5 double-sealing face adapts to bidirectional fluid medium, it is ensured that two way seal does not leak, and improves the use scope of product；Six is self-cleaning: after ball seal face is deviateed, the medium of flowing can flow along sealing surface, is rinsed well by the impurity on sealing surface；Seven is optimal flow characteristic: all-pass is through standard, and crushing stream damages few, improves pipeline system efficiency；Eight is the long-life: during opening/shutting valve, sealing surface is without friction, reduces moment of torsion and adds the service life of various executor；Decrease the abrasion of sealing surface, extend the service life of valve.
Every technical staff's notice: although the present invention describes according to above-mentioned detailed description of the invention, but the invention thought of the present invention is not limited to that invention, the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (9)
- null1. a upper-mounting type ball valve，Including valve body (1)、Valve gap (2)、Support (3) and spool (4)，Described valve body (1) forms cavity with valve gap (2)，Valve body (1) inner chamber two studs with two valve seats (5) to exit，Spool (4) is also set in cavity，Valve gap (2) upper end connects support (3)，It is characterized in that: described spool (4) includes valve rod (6)、Conversion block (7) and the spheroid being made up of two hemispheres (8)，Described valve rod (6) lower end is fixing with conversion block (7) to be connected，Conversion block (7) is connected with the spheroid upper end being made up of hemisphere (8)，The described spheroid lower end being made up of hemisphere (8) is connected with fork-shaped rotating shaft (9) by lower bearing pin (10)，Described fork-shaped rotating shaft (9) lower end is provided with adjustment structure (20)，Described conversion block (7) top is connected to two set rollers (13)，Described two rollers (13) are inserted respectively and are placed in the upper helicla flute (16) with helicla flute sliding sleeve (15) of valve gap (2)，Described valve rod (6) upper end is equipped with dirt-proof boot (17)，Described valve seat (5) offers groove (18).
- 2. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that: described roller (13) is fixed on conversion block (7) by roller shaft (14).
- 3. a kind of upper-mounting type ball valve according to claim 1, it is characterized in that: described conversion block (7) is both sides is that circle lacks flat body, offering skewed slot in two (71) on conversion block (7), in described two, skewed slot upper end is the skewed slot shunk from top to bottom, and lower end is vertical slots.
- 4. a kind of upper-mounting type ball valve according to claim 1, it is characterized in that: said two hemisphere (8) upper end has the circle inserted for conversion block (7) and lacks through hole and the first flange (81) around raised up, being respectively provided with a upper pin (19) on first flange (81) of two hemisphere, described two upper pins (19) respectively penetrate in skewed slot in two (71).
- 5. a kind of upper-mounting type ball valve according to claim 4, it is characterized in that: described hemisphere (8) lower end is provided with the second flange (82), second flange connects two lower bearing pins (1), fork-shaped rotating shaft (9) upper end is a thallus and is provided with two parallel grooves (91),, two lower bearing pins (10) are respectively placed in the groove (91) of fork-shaped rotating shaft upper end.
- 6. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that: described fork-shaped rotating shaft (9) is inserted in the centre bore of valve body (1) bottom by composite bearing.
- 7. a kind of upper-mounting type ball valve according to claim 1, it is characterized in that: described adjustment structure (20) includes regulating block (11) and gland (12), regulating block (11) is threadeded with the central hole of valve body (1), and gland (12) is placed in regulating block (11) and is secured by bolts on valve body (1).
- 8. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that: the described spheroid being made up of two hemispheres (8) forms a through through hole of level, and described valve gap (2) adopts bolt and Flange joint in valve body.
- 9. a kind of upper-mounting type ball valve according to claim 1, it is characterised in that: described valve rod (6) upper end trapezoidal thread screws in nut and is connected with executor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207992.4A CN105757277A (en) | 2016-04-05 | 2016-04-05 | Top entry ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207992.4A CN105757277A (en) | 2016-04-05 | 2016-04-05 | Top entry ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105757277A true CN105757277A (en) | 2016-07-13 |
Family
ID=56333576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610207992.4A Pending CN105757277A (en) | 2016-04-05 | 2016-04-05 | Top entry ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757277A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253150A (en) * | 2017-12-29 | 2018-07-06 | 上海凯工阀门股份有限公司 | Upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support |
| CN112377640A (en) * | 2020-11-17 | 2021-02-19 | 山东省天然气管道有限责任公司 | Two-piece ball valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6880804B1 (en) * | 1999-10-15 | 2005-04-19 | John Caleb Wells Biggers | Valve sealing means |
| CN101520098A (en) * | 2009-03-31 | 2009-09-02 | 浙江埃尼斯阀门有限公司 | Self-sealing ball valve |
| CN203656245U (en) * | 2013-12-31 | 2014-06-18 | 上海凯工阀门有限公司 | Top-entry bidirectional sphere valve |
| CN103982672A (en) * | 2014-05-29 | 2014-08-13 | 挺宇集团有限公司 | Shrinking-type low-friction ball valve |
-
2016
- 2016-04-05 CN CN201610207992.4A patent/CN105757277A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6880804B1 (en) * | 1999-10-15 | 2005-04-19 | John Caleb Wells Biggers | Valve sealing means |
| CN101520098A (en) * | 2009-03-31 | 2009-09-02 | 浙江埃尼斯阀门有限公司 | Self-sealing ball valve |
| CN203656245U (en) * | 2013-12-31 | 2014-06-18 | 上海凯工阀门有限公司 | Top-entry bidirectional sphere valve |
| CN103982672A (en) * | 2014-05-29 | 2014-08-13 | 挺宇集团有限公司 | Shrinking-type low-friction ball valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253150A (en) * | 2017-12-29 | 2018-07-06 | 上海凯工阀门股份有限公司 | Upper dress formula ultra low temperature hard seal fixing ball valve is held together in a kind of support |
| CN112377640A (en) * | 2020-11-17 | 2021-02-19 | 山东省天然气管道有限责任公司 | Two-piece ball valve |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |
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| WD01 | Invention patent application deemed withdrawn after publication |