CN203948697U - A kind of ball-valve valve rod - Google Patents
A kind of ball-valve valve rod Download PDFInfo
- Publication number
- CN203948697U CN203948697U CN201420406214.4U CN201420406214U CN203948697U CN 203948697 U CN203948697 U CN 203948697U CN 201420406214 U CN201420406214 U CN 201420406214U CN 203948697 U CN203948697 U CN 203948697U
- Authority
- CN
- China
- Prior art keywords
- valve
- fixing part
- ball
- linkage portion
- valve rod
- 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
- 230000003139 buffering effect Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 244000241796 Christia obcordata Species 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 abstract description 22
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a kind of ball-valve valve rod, comprise for the linkage portion of valve rod driving mechanism interlock and the fixing part for being fixedly connected with valve ball, described linkage portion one end is fixedly connected with fixing part, one end of the relative linkage portion of described fixing part convex with for the valve body top valve shoulder being connected of conflicting, described valve shoulder is circular setting around fixing part outer side wall, one end of the relative fixing part of described linkage portion offers annular groove, in described annular groove, be embedded with for contacting with valve body and draw electric buffering and draw electric spring, described buffering is drawn electric spring and is joined end to end after looping and be enclosed within annular groove by a spring, described buffering is drawn the notch that protrudes from annular groove of electric spring.This kind of valve rod can effectively be eliminated the static that valve rod produces in transmission process, cuts and can prevent that valve rod from recoiling because static catches fire.
Description
Technical field
The utility model relates to a kind of parts of open-shut device, and more particularly, it relates to a kind of valve rod of ball valve.
Background technique
Modern word under ball valve, refers to making open-shut device with the spheroid of manhole, and spheroid rotates with valve rod, to realize the valve of switching motion.Ball valve is mainly used to make the flow direction that cuts off, distributes and change medium in pipeline.Valve inside is a steel ball with holes, and surface is very bright and clean, and there is the Sealing of teflon on both sides, with spheroid contact segment be arc surface, produce seal action by the bolt on valve body or female compression of pressure, a straight trough is opened at the top of spheroid, for transmitting the torsion of handle.When valve open, the hole on spheroid and the axis parallel of valve, form a passage; When valve closing, by handle by spheroid half-twist, by carrier frequency channel break.
Existing ball valve generally comprises valve body, valve rod, valve seat and valve ball (steel ball with holes).Valve body offers transfer passage and passage is installed, transfer passage and installation passage intersect, valve ball is arranged on transfer passage and the intersection of passage is installed and center offers diameter and the suitable through hole of transfer passage diameter, valve rod is arranged in installs in passage and one end and valve ball is connected, the other end is conventionally connected with the driving mechanism of the actuate valve stem axial rotation such as spanner etc. or handle, and valve seat is located between valve ball and valve body and valve ball can rotate relative to valve seat.
Ball valve is opening and closing in process, and spheroid and valve seat, owing to there being relative movement, can produce static because of friction, when accumulation of static electricity to a certain extent, under the condition that has spark, just may cause exploding, this is for the occasion special hazard of the inflammable and explosive media such as delivering hydrogen.By ball valve during for delivery of liquid gas etc., when it is during in closed condition, the endoceliac liquid gas of valve body accumulating between valve seat can gasify in a large number because absorbing external heat, causes body intracavity pressure extremely to raise.This phenomenon of extremely boosting may cause valve body blast, or it is external that valve rod is gone out, and leads to a disaster.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of ball-valve valve rod, and this kind of valve rod can effectively be eliminated the static that valve rod produces in transmission process, cuts and can prevent that valve rod from recoiling because static catches fire.
For achieving the above object, the utility model provides following technological scheme:
A kind of ball-valve valve rod, comprise for the linkage portion of valve rod driving mechanism interlock and the fixing part for being fixedly connected with valve ball, described linkage portion one end is fixedly connected with fixing part, one end of the relative linkage portion of described fixing part convex with for the valve body top valve shoulder being connected of conflicting, described valve shoulder is circular setting around fixing part outer side wall, one end of the relative fixing part of described linkage portion offers annular groove, in described annular groove, be embedded with for contacting with valve body and draw electric buffering and draw electric spring, described buffering is drawn electric spring and is joined end to end after looping and be enclosed within annular groove by a spring, described buffering is drawn the notch that protrudes from annular groove of electric spring.
By adopting technique scheme, fixing part arranges valve shoulder and is used for conflicting and being connected with the top of valve interior wall, in the time that valve rod or valve body etc. catch fire because of static, soft filler can be burnt or be softened, the hydrodynamic pressure of body cavity can be pushed valve rod to valve body, valve shoulder can be along with pushing away on valve rod, due to valve shoulder being set, can conflict and be connected and block the trend that valve rod above pushes away with the top of valve interior wall, and compress and sealed valve body top through the effect of high pressure fluid, in addition, can also prevent that body cavity from boosting extremely time, valve rod flush-out valve is external, annular groove is offered in one end of the relative fixing part of linkage portion, the convenient buffering of installing is drawn electric spring, linkage portion is in the time standing the interlock of valve rod driving mechanism, thereby understand self turnover drive valve ball rotation keying medium channel, in the process of linkage portion self turnover, can produce a large amount of static with valve body friction, it is by the first annular that is connected and forms of spring that buffering is drawn electric spring, between valve rod and valve ball, can form so static and discharge space, after facilitating static to be extracted, discharging space through static flows away, and be delivered to valve body or valve ball, thereby connect by pipeline and ground, effectively reach the object of eliminating buildup of static electricity, moreover annular groove is arranged on valve and takes on a side of relative linkage portion, be used for conflicting and connecting with valve body top, can effectively stop that a part of medium enters into linkage portion position, effectively ensure the normal work that buffering is drawn electric spring.Further improvement as technique scheme:
Described fixing part offers outside thread in the opposite side of the relative valve shoulder of annular groove, and described outside thread place section offers two groovings, and two described groovings are divided into general shape for oval by the other end cross section of the relative linkage portion of fixing part.
The external diameter of described linkage portion is less than the external diameter of valve shoulder, and is greater than the external diameter of release portion.
The other end of the relative linkage portion of described fixing part offers mounting hole, is fixedly connected with to be useful on the valve ball valve ball being connected of conflicting to draw electric spring in described mounting hole, and described valve ball draws electric spring and is butterfly setting, its butterfly wing linkage portion dorsad.
The other end milling of the relative fixing part of described linkage portion has two planes.
Brief description of the drawings
Fig. 1 is the utility model ball-valve valve rod embodiment's structural representation;
Fig. 2 is the structural representation of the utility model ball-valve valve rod embodiment fixing part;
Fig. 3 is the cross-sectional view of the utility model ball-valve valve rod embodiment's linkage portion end.
Reference character:
1, linkage portion; 11, annular groove; 12, plane; 121, linearity range; 122, arcuate segment; 2, fixing part; 21, grooving; 3, valve shoulder; 4, buffering is drawn electric spring; 5, mounting hole; 6, valve ball draws electric spring; 7, fastening piece.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model ball-valve valve rod embodiment is described further.
A kind of ball-valve valve rod, comprise for the linkage portion 1 of valve rod driving mechanism interlock and the fixing part 2 for being fixedly connected with valve ball, described linkage portion 1 one end is fixedly connected with fixing part 2, one end of described fixing part 2 relative linkage portion 1 convex with for the valve body top valve shoulder 3 being connected of conflicting, described valve shoulder 3 is circular setting around fixing part 2 outer side walls, one end of described linkage portion 1 relative fixing part 2 offers annular groove 11, in described annular groove 11, be embedded with for contacting with valve body and draw electric buffering and draw electric spring 4, described buffering is drawn electric spring 4 and is joined end to end after looping and be enclosed within annular groove 11 by a spring, described buffering is drawn the notch that protrudes from annular groove 11 of electric spring 4.
By adopting technique scheme, fixing part 2 arranges valve shoulder 3 and is used for conflicting and being connected with the top of valve interior wall, in the time that valve rod or valve body etc. catch fire because of static, soft filler can be burnt or be softened, the hydrodynamic pressure of body cavity can be pushed valve rod to valve body, valve shoulder 3 can be along with pushing away on valve rod, due to valve shoulder 3 being set, can conflict and be connected and block the trend that valve rod above pushes away with the top of valve interior wall, and compress and sealed valve body top through the effect of high pressure fluid, in addition, can also prevent that body cavity from boosting extremely time, valve rod flush-out valve is external, annular groove 11 is offered in one end of linkage portion 1 relative fixing part 2, the convenient buffering of installing is drawn electric spring 4, linkage portion 1 is in the time standing the interlock of valve rod driving mechanism, thereby understand self turnover drive valve ball rotation keying medium channel, in the process of self having enough to meet the need in linkage portion 1, can produce a large amount of static with valve body friction, it is by the first annular that is connected and forms of spring that buffering is drawn electric spring 4, between valve rod and valve ball, can form so static and discharge space, after facilitating static to be extracted, discharging space through static flows away, and be delivered to valve body or valve ball, thereby connect by pipeline and ground, effectively reach the object of eliminating buildup of static electricity, moreover annular groove 11 is arranged on a side of valve shoulder 3 relative linkage portion 1, be used for conflicting and connecting with valve body top, can effectively stop that a part of medium enters into linkage portion 1 position, effectively ensure to cushion the normal work of drawing electric spring 4.
Preferably the valve that is less than of the external diameter setting of described linkage portion 1 is takeed on to 3 external diameter, and the external diameter of linkage portion 1 is greater than the external diameter of fixing part 2.The fixing part 2 of external diameter minimum has the conflict of valve shoulder 3 and valve body after being conveniently connected with valve ball like this, can stop that medium greatly enters in the chamber at linkage portion 1 place.The other end milling of described linkage portion 1 relative fixing part 2 has two planes 12.Corresponding position milling two planes 12 that linkage portion 1 is connected with valve rod linking mechanism, also equally become oval with fixing part 2 or be similar to four 100-metre dash road types settings (have two linearity ranges that are parallel to each other 121 and connect respectively the arcuate segment 122 of two linearity range 121 ends, the external diameter of the fixing part 2 before the vertex distance of two arcuate segments 122 here and not milling is suitable).
Described fixing part 2 offers outside thread in the opposite side of the relative valve shoulder 3 of annular groove 11, and described outside thread place section offers two groovings 21, and two described groovings 21 are divided into general shape for oval by the other end cross section of fixing part 2 relative linkage portion 1.Fixing part 2 is offered outside thread and is conveniently threaded with valve ball, offer grooving 21 and make the other end cross section of fixing part 2 relative linkage portion 1 be divided into ellipse, like this for original columned fixing part 2, one is solid of rotation, in valve rod rotation process, connect easily and become flexible, ellipse is not solid of rotation, has major semi axis and semi-minor axis, the screw thread that can or can not wear and tear while turnover because of the drive of valve rod driving mechanism at valve rod, is not easy displacement.
The other end of described fixing part 2 relative linkage portion 1 offers mounting hole 5, is fixedly connected with to be useful on the valve ball valve ball being connected of conflicting to draw electric spring 6 in described mounting hole 5, and described valve ball draws electric spring 6 and is butterfly setting, its butterfly wing linkage portion 1 dorsad.It is not only simple in structure easily manufactured that the valve ball of butterfly draws electric spring 6, in being connected between valve rod and valve ball, can play the effect of supporting valve rod; Valve ball draws the butterfly wing linkage portion 1 dorsad of electric spring 6, in the time that fixing part 2 is threaded with valve ball, butterfly wing can will strut a segment distance between valve rod and valve ball, form static and discharge space, in order to draw the fricative static of valve rod and valve ball, and static is caused to valve ball, then separate or disperse by the medium of the valve ball of flowing through, then connect via pipeline and ground, effectively reach the object of eliminating static.Fixing between butterfly wing and mounting hole 5 can adopt modal bolt and nut fix or the fastening piece 7 such as pin fixing, as long as ensure that place, the end plane of fastening piece 7 is lower than place, butterfly wing end plane, preferably in the end of the compressed rear fastening piece 7 of butterfly wing not with the bottom of the groove of valve ball mounting part 2 conflict be connected to suitable.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a ball-valve valve rod, comprise for the linkage portion of valve rod driving mechanism interlock and the fixing part for being fixedly connected with valve ball, described linkage portion one end is fixedly connected with fixing part, it is characterized in that: one end of the relative linkage portion of described fixing part convex with for the valve body top valve shoulder being connected of conflicting, described valve shoulder is circular setting around fixing part outer side wall, one end of the relative fixing part of described linkage portion offers annular groove, in described annular groove, be embedded with for contacting with valve body and draw electric buffering and draw electric spring, described buffering is drawn electric spring and is joined end to end after looping and be enclosed within annular groove by a spring, described buffering is drawn the notch that protrudes from annular groove of electric spring.
2. ball-valve valve rod according to claim 1, it is characterized in that: described fixing part offers outside thread in the opposite side of the relative valve shoulder of annular groove, described outside thread place section offers two groovings, and two described groovings are divided into general shape for oval by the other end cross section of the relative linkage portion of fixing part.
3. ball-valve valve rod according to claim 2, is characterized in that: the external diameter of described linkage portion is less than the external diameter of valve shoulder, and is greater than the external diameter of release portion.
4. according to the ball-valve valve rod described in claim 1 or 2 or 3, it is characterized in that: the other end of the relative linkage portion of described fixing part offers mounting hole, in described mounting hole, be fixedly connected with to be useful on the valve ball valve ball being connected of conflicting and draw electric spring, described valve ball draws electric spring and is butterfly setting, its butterfly wing linkage portion dorsad.
5. ball-valve valve rod according to claim 4, is characterized in that: the other end milling of the relative fixing part of described linkage portion has two planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406214.4U CN203948697U (en) | 2014-07-22 | 2014-07-22 | A kind of ball-valve valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406214.4U CN203948697U (en) | 2014-07-22 | 2014-07-22 | A kind of ball-valve valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948697U true CN203948697U (en) | 2014-11-19 |
Family
ID=51890734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420406214.4U Expired - Fee Related CN203948697U (en) | 2014-07-22 | 2014-07-22 | A kind of ball-valve valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485365A (en) * | 2015-12-11 | 2016-04-13 | 浙江理工大学 | Ball valve for coal water slurry conveying |
-
2014
- 2014-07-22 CN CN201420406214.4U patent/CN203948697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485365A (en) * | 2015-12-11 | 2016-04-13 | 浙江理工大学 | Ball valve for coal water slurry conveying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160722 |