CN103277528A - Low-torque quick-opening gate valve stem structure - Google Patents
Low-torque quick-opening gate valve stem structure Download PDFInfo
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- CN103277528A CN103277528A CN2013102194721A CN201310219472A CN103277528A CN 103277528 A CN103277528 A CN 103277528A CN 2013102194721 A CN2013102194721 A CN 2013102194721A CN 201310219472 A CN201310219472 A CN 201310219472A CN 103277528 A CN103277528 A CN 103277528A
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Abstract
The invention provides a low-torque quick-opening gate valve stem structure. The stem structure comprises a one-section two-stage four-end quick opening and closing screw, a low-torque laborsaving screw structure, a middle close inversion sealing structure and a laborsaving handwheel structure. The one-section two-stage four-ended quick opening and closing screw comprises a one-section single-end triangular screw and a one-section external four-end trapezoidal threaded sleeve, the single-end triangular screw is of a full size, and the length of the four-end trapezoidal threaded sleeve is one half of that of the single-end triangular screw, and is equal to that of a middle gate plate. The low-torque laborsaving screw structure is composed of the one-section two-stage four-end quick opening and closing screw, a thrust ball bearing, a bearing cap, a bearing gland and a middle bonnet neck. The middle close inversion sealing structure and the laborsaving handwheel structure are composed of an upper stem, a middle bonnet neck, packing, a rolling bearing, a handwheel, a butterfly spring piece and a nut.
Description
Technical field
The present invention relates to a kind of light moment and open a sluice gate the valve stem structure soon.
Background technique
The seal failure of tradition gate valve rod produces and leaks is to influence one of gate valve working life and extensive popularization problem, particularly requires the operating mode of zero leakage, limits its using scope especially.The sealing of valve rod is the squeezing action of utilizing between filler and the valve rod, makes filler step up valve rod, dwindles that distance between valve rod and the filler realizes.Long service time when valve, filling property changes, and filler wearing and tearing or filler pretightening force are not enough, makes between valve rod and the filler to increase apart from the gap, will influence the sealing effect of stuffing box, and generation leaks outside.Simultaneously, traditional gate valve opens and closes moment and also just increases thereupon, in some special operation condition fields along with the increase of size and pressure, when opening and closing valve as need are emergent, realize fast opening and closing, often can't reach the effect of anticipation, switching moment is excessive, torsion is overweight, opens relatively difficulty, and labor intensity is bigger.
Summary of the invention
At the defective of above-mentioned gate valve, the invention provides a kind of light moment and open a sluice gate the valve stem structure soon.
For achieving the above object, the measure taked of the present invention is:
The invention provides a kind of light moment and open a sluice gate the valve stem structure soon, formed by one-part form secondary four-head screw thread fast opening and closing screw rod, the light moment labor-saving structure of screw rod, the tight upside-down mounting sealing configuration in middle part and four kinds of structures of handwheel labour-saving device.
One-part form secondary four-head screw thread fast opening and closing screw rod, formed by one section single head triangle screw rod and one section external four-head trapezoidal thread sleeve pipe, single head triangle screw rod is full-scale, external four-head trapezoidal thread casing length is half of single head triangle screw rod, equates with external four-head trapezoidal thread casing length size with its supporting middle flashboard.
/ 2nd positions, single head triangle screw rod lower end are the v thread district, logical position arranges and the supporting v thread screw thread of tightening of single head triangle screw rod in the external four-head trapezoidal thread sleeve pipe, and middle flashboard middle part arranges the four-head trapezoidal thread screw thread supporting with external four-head trapezoidal thread sleeve pipe four-head trapezoidal thread.
Single head triangle screw rod arranges with the supporting v thread screw thread of tightening of single head triangle screw rod by logical position in the external four-head trapezoidal thread sleeve pipe and tightens one-part form secondary four-head screw thread fast opening and closing screw rod of formation.
The light moment labor-saving structure of screw rod is made up of one-part form secondary four-head screw thread fast opening and closing screw rod, thrust ball bearing, bearing and cap, bearing gland and valve gap neck middle part.
One-part form secondary four-head screw thread fast opening and closing screw rod, top arrange and to be connected groove with upper valve rod, the supporting v thread that is connected on the groove plane and in the middle part of lower end position setting and bearing and the cap.Simultaneously, on the groove plane and the v thread lower end, the thrust ball bearing positioning step is set.Described bearing and cap middle part arrange the v thread screw thread and are connected fastening with secondary four-head screw thread fast opening and closing screw tip, and are connected the unidimensional in the same way supporting groove of groove with upper valve rod at bearing and cap upper end.
Bearing gland outer installment v thread, valve gap neck middle part arranges the thrust ball bearing limited step, and arranges and the supporting v thread screw thread that is connected of bearing gland in the limited step bottom.Thrust ball bearing is arranged on upper valve rod and is connected the groove lower end, the thrust ball bearing positioning step that arranges on one-part form secondary four-head screw thread fast opening and closing screw rod location, and by bearing and cap that the fixing rank of thrust ball bearing is tight.Formation has the one-part form secondary four-head screw thread fast opening and closing screw rod of thrust ball bearing.
The tight upside-down mounting sealing configuration in middle part and handwheel labour-saving device are made up of upper valve rod, valve gap neck middle part, filler, rolling bearing, handwheel, butterfly shell fragment and nut.
The upper valve rod bottom arranges the filler positioning boss, and valve gap neck middle part arranges the filler positioning step.Upper valve rod bottom arranges that the plane arranges the distribution of filler positioning step plane symmetry, size equalization with valve gap neck middle part on the filler positioning boss.Integrally casting is adopted at valve gap neck middle part, at medium position the filler positioning step is set.The upper valve rod that the bottom that processes has the filler positioning boss puts filler, and filler can be decided according to work condition environment, and general low temperature environment adopts the tetrafluoro polyethylene, and high temperature adopts metal to add graphite and makes filler.
At valve gap neck top, middle part and handwheel contact position, the medium position of placing along upper valve rod arranges the rolling bearing positioning groove.Go into valve gap neck middle part when upper valve rod filler upside-down mounting together, filler is by being attached on positioning boss and the positioning step.
In the rolling bearing placement positioning groove.Then, handwheel, butterfly shell fragment are assemblied in successively on the upper valve rod top and rolling bearing of upside-down mounting sealing, tighten at the upper valve rod of upside-down mounting sealing with nut.
After tightening on the upper valve rod of upside-down mounting sealing, valve gap neck middle part is gone in the one-part form secondary four-head screw thread fast opening and closing screw rod upside-down mounting that will have thrust ball bearing again, the supporting connection of linking groove that upper valve rod bottom filling positioning boss the bottom convex shoulder that arranges and the one-part form secondary four-head screw thread fast opening and closing screw tip that has thrust ball bearing are arranged.Thrust ball bearing valve gap neck middle part arranges the thrust ball bearing limited step and fix spacingly,, is held in the mouth tightly with valve gap neck middle part is fixing by arranging and the supporting v thread screw thread that is connected of bearing gland in the limited step bottom by bearing gland.Realize the characteristics of the light moment quick opening valve bar structure of gate valve fully.
Beneficial effect of the present invention: the present invention can realize the rapidly opened and closed function of valve by one-part form secondary four-head screw thread fast opening and closing screw-rod structure; The light moment labor-saving structure of screw rod, handwheel labour-saving device can be realized light moment function when opening and closing, realize opening and closing laborsaving; The middle part is the upside-down mounting sealing configuration closely, makes valve central structure and sealing tightr, simultaneously, broken traditional gate valve fully by this kind design, increase the drawback that increase relatively at valve gap neck middle part by size, realized having reduced valve gap neck middle part size, saved raw material and machining complexity.Appropriate design by above four kinds of structures, product of the present invention, on whole manufacture cost, can not surpass similar gate valve product, and physical life can improve tens of times, be conducive to allow traditional gate valve update, this product is by the compensation sealing of upside-down mounting sealing and butterfly shell fragment, can make valve prolong 30-50 working life.One-part form secondary four-head screw thread fast opening and closing screw-rod structure, the light moment labor-saving structure of screw rod and handwheel labour-saving device, can realize rapidly opened and closed, have laborsaving simultaneously, reduce labor intensity, the type design valve performance improves greatly, operator's labor intensity alleviates more than 60%, and operating effect is obvious.In special work condition environment, open function soon and have safety reliability more.
Description of drawings
Fig. 1 opens a sluice gate valve stem structure floor map soon for a kind of light moment provided by the invention.
Fig. 2 is one-part form secondary four-head screw thread fast opening and closing screw-rod structure floor map provided by the invention.
Fig. 3 is the light moment labor-saving structure of screw rod provided by the invention floor map.
Fig. 4 is middle part provided by the invention tight upside-down mounting sealing configuration floor map.
Fig. 5 is handwheel labour-saving device provided by the invention structural plan schematic representation.
Among the figure: 1-one-part form secondary four-head screw thread fast opening and closing screw rod, the light moment labor-saving structure of 2-screw rod, the 3-middle part is the upside-down mounting sealing configuration closely, 4-handwheel labour-saving device, 5-single head triangle screw rod, 6-four-head trapezoidal thread sleeve pipe, flashboard among the 7-, 8-v thread screw thread, 9-four-head trapezoidal thread screw thread, the 10-thrust ball bearing, 11-bearing and cap, 12-bearing gland, 13-valve gap neck middle part, 14-upper valve rod, 15-groove, the 16-positioning step, the 17-limited step, 18-filler, 19-rolling bearing, the 20-handwheel, 21-butterfly shell fragment, 22-nut, 23-filler positioning boss, the 24-positioning step, the 25-convex shoulder.
Embodiment
Shown in Fig. 1,2,3,4,5, a kind of light moment provided by the present invention is opened a sluice gate the valve stem structure soon, is made up of one-part form secondary four-head screw thread fast opening and closing screw rod 1, the light moment labor-saving structure 2 of screw rod, the tight upside-down mounting sealing configuration 3 in middle part and 4 four kinds of structures of handwheel labour-saving device.
One-part form secondary four-head screw thread fast opening and closing screw rod 1 is made up of one section single head triangle screw rod 5 and one section external four-head trapezoidal thread sleeve pipe 6.Single head triangle screw rod 5 is full-scale.Half that external four-head trapezoidal thread sleeve pipe 6 length are single head triangle screw rod 5 is namely than equating with its supporting middle flashboard 7 length dimensions.
/ 2nd positions, single head triangle screw rod 5 lower ends are the v thread district, and logical position arranges and the single head triangle screw rod 5 supporting v thread screw threads of tightening 8 in the external four-head trapezoidal thread sleeve pipe 6.Middle flashboard 7 middle parts arrange the four-head trapezoidal thread screw thread 9 supporting with external four-head trapezoidal thread sleeve pipe 6 four-head trapezoidal threads.
Single head triangle screw rod 5 arranges with the single head triangle screw rod 5 supporting v thread screw threads of tightening 8 by logical position in the external four-head trapezoidal thread sleeve pipe 6 and tightens one-part form secondary four-head screw thread fast opening and closing screw rod 1 of formation.
The light moment labor-saving structure 2 of screw rod is made up of one-part form secondary four-head screw thread fast opening and closing screw rod 1, thrust ball bearing 10, bearing and cap 11, bearing gland 12 and valve gap neck middle part 13.
One-part form secondary four-head screw thread fast opening and closing screw rod 1, top arrange and to be connected groove 15 with upper valve rod 14, on groove 15 planes and lower end position setting and the supporting v thread that is connected of bearing and cap 11 middle parts.Simultaneously, in groove 15 planes and v thread lower end, thrust ball bearing 10 positioning steps 16 are set.Described bearing and cap 11 middle parts arrange the v thread screw thread and are connected with secondary four-head screw thread fast opening and closing screw rod 1 top and buckle deadly, and are connected the unidimensional in the same way supporting groove of groove 15 with upper valve rod 14 at bearing and cap 11 upper ends.
The tight upside-down mounting sealing configuration 3 in middle part and handwheel labour-saving device 4 are made up of upper valve rod 14, valve gap neck middle part 13, filler 18, rolling bearing 19, handwheel 20, butterfly shell fragment 21 and nut 22.
At valve gap neck 13 tops, middle part and handwheel 20 contact positions, the medium position of placing along upper valve rod 14 arranges rolling bearing 19 positioning grooves 25.Go into valve gap neck middle part 13 when upper valve rod 14 fillers 18 upside-down mounting together, filler 18 is by being attached on positioning boss 23 and the positioning step 24.
In the rolling bearing 19 placement positioning grooves 25.Then, handwheel 20, butterfly shell fragment 21 are assemblied in successively on upper valve rod 14 tops and rolling bearing 19 of upside-down mounting sealing, tighten locked with nut 22 at the upper valve rod 14 of upside-down mounting sealing.
When tighten on the upper valve rod 14 of upside-down mounting sealing locked after, valve gap neck middle part 13 is gone in one-part form secondary four-head screw thread fast opening and closing screw rod 1 upside-down mounting that will have thrust ball bearing 11 again, 15 supporting connections of linking groove that upper valve rod 14 bottom filling positioning boss 23 the bottoms convex shoulder 25 that arranges and one-part form secondary four-head screw thread fast opening and closing screw rod 1 top that has thrust ball bearing 11 are arranged.Thrust ball bearing 10 valve gap necks middle part 13 arrange thrust ball bearing 10 limited steps 17 fix spacing, by bearing gland 12 by arranging and the bearing gland 12 supporting v thread screw threads that are connected in limited step 17 bottoms, with valve gap neck middle part 13 fixing ranks tightly.Realize the characteristics of the light moment quick opening valve bar structure of gate valve fully.
The present invention can realize the rapidly opened and closed function of valve by one-part form secondary four-head screw thread fast opening and closing screw-rod structure; The light moment labor-saving structure of screw rod, handwheel labour-saving device can be realized light moment function when opening and closing, realize opening and closing laborsaving; The middle part is the upside-down mounting sealing configuration closely, makes valve central structure and sealing tightr, simultaneously, broken traditional gate valve fully by this kind design, increase the drawback that increase relatively at valve gap neck middle part by size, realized having reduced valve gap neck middle part size, saved raw material and machining complexity.Appropriate design by above four kinds of structures, product of the present invention, on whole manufacture cost, can not surpass similar gate valve product, and physical life can improve tens of times, be conducive to allow traditional gate valve update, this product is by the compensation sealing of upside-down mounting sealing and butterfly shell fragment, can make valve prolong 30-50 working life.One-part form secondary four-head screw thread fast opening and closing screw-rod structure, the light moment labor-saving structure of screw rod and handwheel labour-saving device, can realize rapidly opened and closed, have laborsaving simultaneously, reduce labor intensity, the type design valve performance improves greatly, operator's labor intensity alleviates more than 60%, and operating effect is obvious.In special work condition environment, open function soon and have safety reliability more.
Those skilled in the art's simple change and replacement are all within protection scope of the present invention in related domain.
Claims (9)
1. a light moment is opened a sluice gate the valve stem structure soon by one-part form secondary four-head screw thread fast opening and closing screw rod (1), the light moment labor-saving structure of screw rod (2), the middle part is upside-down mounting sealing configuration (3) and (4) four kinds of structures compositions of handwheel labour-saving device closely, it is characterized in that: described one-part form secondary four-head screw thread fast opening and closing screw rod (1), formed by one section single head triangle screw rod (5) and one section external four-head trapezoidal thread sleeve pipe (6), single head triangle screw rod (5) is full-scale, external four-head trapezoidal thread sleeve pipe (6) length is half of single head triangle screw rod (5), and middle flashboard (7) length equates with four-head trapezoidal thread sleeve pipe (6).
2. a kind of light moment according to claim 1 is opened a sluice gate the valve stem structure soon, it is characterized in that: 1/2nd positions, single head triangle screw rod (5) lower end are the v thread district, logical position arranges and the supporting v thread screw thread of tightening (8) of single head triangle screw rod (5) in the external four-head trapezoidal thread sleeve pipe (6), and middle flashboard (7) middle part arranges the four-head trapezoidal thread screw thread (9) supporting with external four-head trapezoidal thread sleeve pipe (6) four-head trapezoidal thread.
3. a kind of light moment according to claim 1 is opened a sluice gate the valve stem structure soon, it is characterized in that: single head triangle screw rod (5) arranges with the supporting v thread screw thread of tightening (8) of single head triangle screw rod (5) by logical position in the external four-head trapezoidal thread sleeve pipe (6) and tightens a formation one-part form secondary four-head screw thread fast opening and closing screw rod (1).
4. a kind of light moment according to claim 1 is opened a sluice gate the valve stem structure soon, it is characterized in that: the light moment labor-saving structure of screw rod (2) is made up of one-part form secondary four-head screw thread fast opening and closing screw rod (1), thrust ball bearing (10), bearing and cap (11), bearing gland (12) and valve gap neck middle part (13).
5. a kind of light moment according to claim 1 is opened a sluice gate the valve stem structure soon, it is characterized in that: described one-part form secondary four-head screw thread fast opening and closing screw rod (1), the top arranges and is connected groove (15) with upper valve rod (14), on groove (15) plane and the supporting v thread that is connected of lower end position setting and bearing and cap (11) middle part, on groove (15) plane and the v thread lower end thrust ball bearing (10) positioning step (16) is set; In the middle part of bearing and cap (11), the v thread screw thread is set and is connected fastening with secondary four-head screw thread fast opening and closing screw rod (1) top, and be connected the unidimensional in the same way supporting groove of groove (15) with upper valve rod (14) at bearing and cap (11) upper end.
6. open a sluice gate the valve stem structure soon according to claim 4 or 5 described a kind of light moments, it is characterized in that: described bearing gland (12) outer installment v thread, valve gap neck middle part (13) arranges thrust ball bearing (10) limited step (17), and at the setting of limited step (17) bottom and the supporting v thread screw thread that is connected of bearing gland (12), thrust ball bearing (10) is arranged on upper valve rod (14) and is connected groove (15) lower end, one-part form secondary four-head screw thread fast opening and closing screw rod (1) is gone up thrust ball bearing (10) positioning step (16) location that arranges, and by bearing and cap (11) that the fixing rank of thrust ball bearing (10) is tight, form the one-part form secondary four-head screw thread fast opening and closing screw rod (1) that has thrust ball bearing (11).
7. a kind of light moment according to claim 1 is opened a sluice gate the valve stem structure soon, it is characterized in that: the tight upside-down mounting sealing configuration in middle part (3) and handwheel labour-saving device (4) are made up of upper valve rod (14), valve gap neck middle part (13), filler (18), rolling bearing (19), handwheel (20), butterfly shell fragment (21) and nut (22).
8. a kind of light moment according to claim 7 is opened a sluice gate the valve stem structure soon, it is characterized in that: described upper valve rod (14) bottom arranges filler (18) positioning boss (23), valve gap neck middle part (13) arranges filler (18) positioning step (24), upper valve rod (14) bottom arranges the last plane of filler (18) positioning boss (23) and valve gap neck middle part (13) arranges the distribution of filler (18) positioning step (24) plane symmetry, the size equalization, integrally casting is adopted at valve gap neck middle part (13), at medium position filler positioning step (24) is set, the upper valve rod (14) that the bottom that processes has the filler positioning boss puts filler (18), filler (18) can be decided according to work condition environment, general low temperature environment adopts the tetrafluoro polyethylene, and high temperature adopts metal to add graphite and makes filler (18).
9. open a sluice gate the valve stem structure soon according to claim 7 or 8 described a kind of light moments, it is characterized in that: at valve gap neck (13) top, middle part and handwheel (20) contact position, the medium position of placing along upper valve rod (14) arranges rolling bearing (19) positioning groove (25), and rolling bearing (19) is arranged in the positioning groove (25).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102194721A CN103277528A (en) | 2013-06-05 | 2013-06-05 | Low-torque quick-opening gate valve stem structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102194721A CN103277528A (en) | 2013-06-05 | 2013-06-05 | Low-torque quick-opening gate valve stem structure |
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| CN103277528A true CN103277528A (en) | 2013-09-04 |
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| CN2013102194721A Pending CN103277528A (en) | 2013-06-05 | 2013-06-05 | Low-torque quick-opening gate valve stem structure |
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Citations (9)
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|---|---|---|---|---|
| JP2006125469A (en) * | 2004-10-27 | 2006-05-18 | Kurimoto Ltd | Partition valve device with auxiliary valve |
| US20080029728A1 (en) * | 2006-08-04 | 2008-02-07 | Vetco Gray Inc. | High Aspect Ratio Threadform |
| CN201065940Y (en) * | 2007-07-16 | 2008-05-28 | 南京菲时特管业有限公司 | Heating temperature-controlling valve |
| CN101408096A (en) * | 2007-10-10 | 2009-04-15 | 长江大学 | Visual dark rod flat plate gate valve |
| CN201582486U (en) * | 2009-08-07 | 2010-09-15 | 兰州理工大学温州泵阀工程研究院 | Undamped self-sealing device realized by multi-stage valve rod |
| CN201672082U (en) * | 2010-06-07 | 2010-12-15 | 良工阀门有限公司 | Multistage friction free parallel gate valve |
| CN102182839A (en) * | 2011-04-28 | 2011-09-14 | 温州市捷宇阀门制造有限公司 | Bidirectional static seal universal gate valve |
| CN102494149A (en) * | 2011-11-29 | 2012-06-13 | 温州星晨阀门有限公司 | Gate valve with zero friction |
| CN203413154U (en) * | 2013-06-05 | 2014-01-29 | 温州市捷宇阀门制造有限公司 | Valve rod structure of light torque quick-opening brake valve |
-
2013
- 2013-06-05 CN CN2013102194721A patent/CN103277528A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125469A (en) * | 2004-10-27 | 2006-05-18 | Kurimoto Ltd | Partition valve device with auxiliary valve |
| US20080029728A1 (en) * | 2006-08-04 | 2008-02-07 | Vetco Gray Inc. | High Aspect Ratio Threadform |
| CN201065940Y (en) * | 2007-07-16 | 2008-05-28 | 南京菲时特管业有限公司 | Heating temperature-controlling valve |
| CN101408096A (en) * | 2007-10-10 | 2009-04-15 | 长江大学 | Visual dark rod flat plate gate valve |
| CN201582486U (en) * | 2009-08-07 | 2010-09-15 | 兰州理工大学温州泵阀工程研究院 | Undamped self-sealing device realized by multi-stage valve rod |
| CN201672082U (en) * | 2010-06-07 | 2010-12-15 | 良工阀门有限公司 | Multistage friction free parallel gate valve |
| CN102182839A (en) * | 2011-04-28 | 2011-09-14 | 温州市捷宇阀门制造有限公司 | Bidirectional static seal universal gate valve |
| CN102494149A (en) * | 2011-11-29 | 2012-06-13 | 温州星晨阀门有限公司 | Gate valve with zero friction |
| CN203413154U (en) * | 2013-06-05 | 2014-01-29 | 温州市捷宇阀门制造有限公司 | Valve rod structure of light torque quick-opening brake valve |
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Application publication date: 20130904 |