CN206246721U - The stem structure of ball valve - Google Patents
The stem structure of ball valve Download PDFInfo
- Publication number
- CN206246721U CN206246721U CN201621308982.1U CN201621308982U CN206246721U CN 206246721 U CN206246721 U CN 206246721U CN 201621308982 U CN201621308982 U CN 201621308982U CN 206246721 U CN206246721 U CN 206246721U
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- stem structure
- pars intermedia
- groove
- 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.)
- Active
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses the stem structure of ball valve, including valve rod, the filler being set on valve rod, and valve rod is made up of bottom, pars intermedia and upper end, and bottom is connected with the valve spool of ball valve, and upper end extends to outside valve body and is connected with drive mechanism；Filler is set on pars intermedia, pars intermedia lateral wall is provided with some annular resistances and oozes groove in filler position corresponding position, sirloin gland structure there is pressuring action to filler so that filler extrusion and form cold flow and be filled in annular resistance and ooze in groove and then the sealing intensity between stem structure and valve body can be strengthened.The pars intermedia lateral wall of valve rod of the present utility model is provided with some annular resistances and oozes groove, when filler extrusion and form cold flow, cold flow filling is squeezed in annular resistance and oozes groove, one stifled " wall " is formed between filler and valve rod, medium seepage outwardly between filler and valve rod is effectively prevented, is played a part of to seal and is isolated, reasonable in design and novelty, good sealing effect, the effectively service life of extension ball valve.
Description
Technical field
The utility model is related to valve technology field, the more particularly to stem structure of ball valve.
Background technology
Ball valve is one of widely used valve, and its simple structure, sealed reliable is easy to maintenance, is widely used
In fields such as oil, chemical industry, metallurgy, light textile, food, atomic energy, aviations.Ball valve has the action being rotated by 90 °, and faucet body is
Ball valve core, its flow direction for being mainly used to cut off, distribute and change medium in pipeline, it is only necessary to the operation being rotated by 90 °
Can just be closed with the rotating torque of very little tight.
Ball valve generally includes valve body, valve element, stem structure and bonnet, and wherein valve element is located in the valve pocket of valve body and and valve rod
Structure is connected.Sealing property between stem structure and valve body directly affects the sealing and service life of ball valve, existing
Axis surface in some stem structures is smooth, and the effect of sealing is reached by compressing filler and being brought into close contact with axis, but
It is such structure, because of the continuous long-term rotation work of stem structure, filler is easy to wear and tear and produces gap and cause to be situated between
Matter is leaked out from gap, and final the normal of influence ball valve is used, while it is very big to repair probability, maintenance difficulty and maintenance cost
It is all very high.
Therefore, a kind of reasonable in design and novelty, simple structure how to be realized and practical, good sealing effect, long service life
The stem structure of ball valve be technical problem urgently to be resolved hurrily in the industry.
Utility model content
Main purpose of the present utility model is to provide the stem structure of ball valve, it is intended to realize a kind of reasonable in design and novelty,
Simple structure and practical, good sealing effect, the stem structure of the ball valve of long service life.
The utility model proposes the stem structure of ball valve, ball valve include being provided with the valve body of valve pocket, the valve element in valve pocket,
Lid is located at bonnet, stem structure, the sirloin gland structure on valve body on valve body, and stem structure includes valve rod, is set in
Filler on valve rod, valve rod is made up of bottom, pars intermedia and upper end, and bottom is connected with valve spool, and upper end extends
It is connected outside to valve body and with drive mechanism；Filler is set on pars intermedia, and pars intermedia lateral wall is provided with filler position corresponding position
Groove is oozed in some annular resistances, and sirloin gland structure is located at filler upper end and the change so that filler is squeezed that has pressuring action to filler
Shape and form cold flow and be filled in annular resistance and ooze in groove and then the sealing intensity between stem structure and valve body can be strengthened；Lower end
Portion, pars intermedia and upper end are by casting and are set to integrated formed structure.
Preferably, bottom is provided with an electrostatic pearl release groove in the position corresponding position with valve element, and electrostatic pearl release groove is embedded
It is provided with one inconsistent and the elastic steel ball structure of electrostatic can be drawn with valve element.
Preferably, the quantity that groove is oozed in annular resistance is set to 2.
Preferably, drive mechanism includes handle, pneumatic actuator, YE.
The stem structure of the utility model ball valve, including valve rod, the filler being set on valve rod, valve rod by bottom, in
Between portion and upper end composition, bottom be connected with the valve spool of ball valve, upper end extend to valve body outward and with drive mechanism company
Connect, filler is set on pars intermedia, the sirloin gland structure on ball valve has pressuring action to filler.It is of the present utility model
The pars intermedia lateral wall of valve rod is provided with some annular resistances and oozes groove in filler position corresponding position, when filler is subject to sirloin gland structure
During squeezing action, it may occur that deform and formed cold flow, cold flow can fill to be squeezed in annular and hinder oozes groove, similar in filler and valve rod
Between form one stifled " wall ", effectively prevent and block medium direct seepage outwardly between filler and valve rod, play sealing and intercept
With the effect of isolation, reasonable in design and novelty, simple structure and practical, good sealing effect effectively extend the service life of ball valve.
Brief description of the drawings
Fig. 1 is the stereochemical structure enlarged diagram of an embodiment of the stem structure of ball valve of the present utility model；
Fig. 2 is that an embodiment of the stem structure of ball valve of the present utility model faces structure enlarged diagram, wherein under
End is locally sectional view；
Fig. 3 is the side-looking structure enlarged diagram of an embodiment of the stem structure of ball valve of the present utility model；
Fig. 4 is the dimensional structure diagram of the ball valve in an embodiment of the stem structure of ball valve of the present utility model, its
Middle part is sectional view, wherein containing part A；
Fig. 5 is the enlarged diagram of part A in Fig. 4.
The realization of the utility model purpose, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
Referring to figs. 1 to Fig. 4, an embodiment of the stem structure of ball valve of the present utility model is proposed, ball valve includes being provided with valve
The valve body 100 in chamber 101, the valve element in valve pocket 101, lid be located at bonnet on valve body 100, stem structure, located at valve body 100
On sirloin gland structure 500.Valve element in spherical, and around the center line of valve body 100 make rotation in valve pocket 101 reach unlatching,
The purpose of closing, while being rotated come rotary control valve core by the axis of stem structure.
Stem structure includes valve rod, the filler 200 being set on valve rod, and filler 200 plays a part of sealing, prevents medium
From valve rod periphery, seepage flow is out outwardly.Valve rod is made up of bottom 301, pars intermedia 302 and upper end 303, bottom 301 and valve
Core is connected, and upper end 303 extends to outside valve body 100 and is connected with drive mechanism, and drive mechanism includes handle, pneumatic execution
Device, YE etc., it is easy to operate, it is necessary to very little torque just can light 90 degree of rotary spools reach and be turned on and off valve
Door.
Filler 200 is set on pars intermedia 302, and the lateral wall of pars intermedia 302 is provided with some rings in the position corresponding position of filler 200
Form drag oozes groove 304, and the quantity that groove 304 is oozed in the annular resistance of the present embodiment is set to 2.Sirloin gland structure 500 is located at filler 200
Upper end and to filler 200 have pressuring action so that the extrusion of filler 200 and form cold flow 201 and be filled in annular resistance
Ooze in groove 304 and then the sealing intensity between stem structure and valve body 100 can be strengthened.Bottom 301, pars intermedia 302 and upper end
Portion 303 is by casting and is set to integrated formed structure, simple structure, simplifies production process, can mass production, raising
Production efficiency, reduces manufacturing cost.
The stem structure of the utility model ball valve, including valve rod, the filler 200 that is set on valve rod, valve rod is by bottom
301st, pars intermedia 302 and upper end 303 constitute, and bottom 301 is connected with the valve spool of ball valve, and upper end 303 extends to valve
Body 100 is outer and is connected with handle, pneumatic actuator or YE, is turned by handle, pneumatic actuator or YE
Ovable valve stem is finally reached the purpose for being turned on and off valve to control valve core rotation.Filler 200 is set on pars intermedia 302, if
There is pressuring action to filler 200 in the sirloin gland structure 500 on ball valve.Valve rod of the present utility model changes traditional outside
The smooth architectural characteristic of wall, sets several annular resistances and oozes groove 304 in the lateral wall of pars intermedia 302 of valve rod, and groove 304 is oozed in annular resistance
Position it is corresponding with filler 200, when filler 200 be subject to sirloin gland structure 500 squeezing action when, it may occur that deform and shape
Into cold flow 201, cold flow 201 can fill to be squeezed in annular and hinder oozes groove 304, is blocked up similar to forming one between filler 200 and valve rod
" wall ", effectively prevents medium from direct seepage outwardly between filler 200 and valve rod, plays sealing and the work of fluid is blocked in isolation
With, and the annular resistance of the present embodiment oozes the quantity of groove 304 and is set to 2, that is, form the tight cut-pff wall of twice, prevents medium
From the leakage of valve rod periphery, there is dual sealing effectiveness, reasonable in design and novelty, simple structure to valve rod and practical, sealing is imitated
It is really good, while according to multiple test data gained, the ball valve leakproof life-span for being provided with traditional valve rod only has 20,000 times or so, and this practicality
The ball valve leakproof life-span that the valve rod of groove 304 is oozed in novel belt annular resistance can be to 100,000 times or so, the service life of effective extension ball valve,
Reduce maintenance probability and maintenance cost.
In addition, bottom 301 is provided with an electrostatic pearl release groove 305, electrostatic pearl release groove in the position corresponding position with valve element
One is embedded with 305 inconsistent with valve element and the elastic steel ball structure 400 of electrostatic can be drawn.Between valve element and valve body 100 due to
Relative motion, can produce electrostatic, accumulation of static electricity to a certain extent, generation to be possible under conditions of having spark quick-fried because of friction
Fried accident, this occasion special hazard to inflammable and explosive media such as conveying hydrogen.Elastic steel ball structure 400 of the present utility model with
Valve element is in contact, and electrostatic can be allowed to be brought out release, effectively reaches the purpose for eliminating buildup of static electricity, and that improves ball valve uses safety
Performance.
In sum, the cold flow 201 that filler of the present utility model 200 is formed by the extruding of sirloin gland structure 500 is filled out
The some annular resistances filled in pars intermedia 302 are oozed in groove 304, can prevent the resistance of medium from valve rod periphery seepage outwardly from oozing to form one
" wall " wall, plays a part of sealing and spacer medium, the Elastic Steel that the electrostatic pearl release groove 305 of bottom 301 is housed in addition
Electrostatic can be drawn and discharged by pearls knot structure 400, effectively reach the purpose for eliminating buildup of static electricity, improve the safety in utilization of ball valve
Can, therefore, stem structure of the present utility model realizes reasonable in design and novelty, simple structure and practical, good sealing effect, can
Effectively extend the ball valve of the long service life of ball valve and improve the beneficial effects such as usage safety performance of ball valve.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
The equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (4)
1. the stem structure of ball valve, the ball valve includes that being provided with the valve body of valve pocket, the valve element in the valve pocket, lid is located at institute
State bonnet, stem structure, the sirloin gland structure on the valve body on valve body, it is characterised in that the stem structure
Including valve rod, the filler being set on the valve rod, the valve rod is made up of bottom, pars intermedia and upper end, the lower end
Portion is connected with the valve spool, and the upper end extends to outside the valve body and is connected with drive mechanism；Described filler is arranged
On the pars intermedia, the pars intermedia lateral wall is provided with some annular resistances and oozes groove, the ox in described filler position corresponding position
Sirloin gland structure located at described filler upper end and there is pressuring action to described filler so that described filler extrusion and
Form cold flow and to be filled in the sealing that the annular resistance oozes in groove and then can strengthen between the stem structure and the valve body strong
Degree；The bottom, the pars intermedia and the upper end are by casting and are set to integrated formed structure.
2. the stem structure of ball valve according to claim 1, it is characterised in that the bottom is in the position with the valve element
Put corresponding position and be provided with an electrostatic pearl release groove, one is embedded with the electrostatic pearl release groove inconsistent with the valve element and can draw
The elastic steel ball structure of electrostatic.
3. the stem structure of ball valve according to claim 1 and 2, it is characterised in that the quantity that groove is oozed in the annular resistance sets
It is set to 2.
4. the stem structure of ball valve according to claim 3, it is characterised in that the drive mechanism includes handle, pneumatic
Actuator, YE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308982.1U CN206246721U (en) | 2016-12-01 | 2016-12-01 | The stem structure of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308982.1U CN206246721U (en) | 2016-12-01 | 2016-12-01 | The stem structure of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246721U true CN206246721U (en) | 2017-06-13 |
Family
ID=59004203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621308982.1U Active CN206246721U (en) | 2016-12-01 | 2016-12-01 | The stem structure of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676534A (en) * | 2017-08-17 | 2018-02-09 | 昆明云内动力股份有限公司 | A kind of main shaft sealing construction of engine EGR cooler by-passing valve |
| CN107830196A (en) * | 2017-12-15 | 2018-03-23 | 中山高达阀门有限公司 | A kind of double-safety valve of monoblock type |
-
2016
- 2016-12-01 CN CN201621308982.1U patent/CN206246721U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676534A (en) * | 2017-08-17 | 2018-02-09 | 昆明云内动力股份有限公司 | A kind of main shaft sealing construction of engine EGR cooler by-passing valve |
| CN107676534B (en) * | 2017-08-17 | 2019-05-31 | 昆明云内动力股份有限公司 | A kind of main shaft sealing construction of engine EGR cooler by-passing valve |
| CN107830196A (en) * | 2017-12-15 | 2018-03-23 | 中山高达阀门有限公司 | A kind of double-safety valve of monoblock type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206246722U (en) | A kind of ball valve of good sealing effect | |
| CN206246721U (en) | The stem structure of ball valve | |
| CN105221784A (en) | A kind of wear-less hard seal ball valve | |
| CN107504219A (en) | A kind of twin-stage drive type electric sealing ball valve device | |
| CN101772665B (en) | Valve assembly | |
| CN206257336U (en) | A kind of safety chemical industry pipeline valve | |
| CN207454787U (en) | Very stiff and demanding sealing rotary butterfly valve | |
| CN203963048U (en) | A kind of Dual Drive Pneumatic butterfly valve | |
| CN201273382Y (en) | Support-expansion type dual-seal stop cock | |
| CN203940030U (en) | A kind of high-performance elastic metal seal ball valve | |
| CN201666391U (en) | Upper water outlet rotation shunting valve core | |
| CN204573132U (en) | Anti-leakage butterfly valve | |
| CN206754484U (en) | A kind of antistatic lubricates tee ball valve | |
| CN103174855B (en) | Self-checking type double-valve-head regulating valve | |
| CN101982681B (en) | Bellows stop valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN201795063U (en) | Anti-rotation structure of stop valve | |
| CN206398174U (en) | A kind of low friction, dual-seal valve rod structure | |
| CN203023540U (en) | Novel stop valve | |
| CN205937915U (en) | Plastic tubing stop valve | |
| CN203757006U (en) | Novel throttling cut-off emptying valve sleeve type blow-down valve | |
| CN200975501Y (en) | Gate valve used in explosive hypertoxic environment | |
| CN203488743U (en) | Pre-tightening floating valve seat bi-directional full metal hard sealing butterfly valve | |
| CN202708093U (en) | Marine stop valve | |
| CN203146954U (en) | Self-inspection type double-valve-head regulation valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |