CN205036885U - Fixed ball valve - Google Patents
Fixed ball valve Download PDFInfo
- Publication number
- CN205036885U CN205036885U CN201520807360.2U CN201520807360U CN205036885U CN 205036885 U CN205036885 U CN 205036885U CN 201520807360 U CN201520807360 U CN 201520807360U CN 205036885 U CN205036885 U CN 205036885U
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- China
- Prior art keywords
- valve
- spheroid
- ball valve
- fixing ball
- valve body
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Abstract
The utility model discloses a fixed ball valve, the escape valve that can solve fixed ball valve expose outside, easily lead to the fact the technical problem that the valve damaged and leaked. Fixed ball valve includes: a valve body, a spheroid, a disk seat, a valve rod, the valve body has a valve body chamber, the spheroid with the disk seat all is located the valve body intracavity, the disk seat is located the spheroid with between the valve body, the valve rod passes the valve body with the spheroid is connected, fixed ball valve still includes a fixed axle and an escape valve, the fixed axle passes the bottom of valve body with the spheroid is connected, the escape valve is located in the fixed axle. The utility model provides a with low costs, occupation space is little, safe and reliable's fixed ball valve more.
Description
Technical field
The utility model relates to a kind of ball valve, particularly relates to a kind of fixing ball valve.
Background technique
Ball valve a kind of to be driven by valve rod by open-shut device (spheroid), and make the valve of 90 degree of rotary motions around the axis of valve rod.Ball valve, since birth, has been widely used in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel, has belonged to requisite component in mechanical field.
Prior art field, ball valve can be divided into floating ball valve and fixing ball valve.Wherein, fixing ball valve is high-performance ball valve of new generation, is applicable to long-distance transport pipes and general industry pipeline, and its intensity, Security, adverse environment resistant etc. have carried out special consideration when designing, and are applicable to various corrosivity and non-aggressive medium.It is compared with floating ball valve, during work, the active force that before valve, hydrodynamic pressure produces on spheroid all passes to bearing, spheroid can not be made to move to valve seat, thus valve seat can not bear excessive pressure, so the torque of fixing ball valve is little, valve seat distortion is little, sealability is stable, long service life, is applicable to high pressure, heavy caliber occasion.
Typically, fixing ball valve adopts the mode arranging petcock on valve body to discharge detained matter, reduces medium to the pollution of valve.Petcock is exposed to outside stationary axle, and it is highly longer than the outward flange plane of valve body, easily suffers to damage in the external world, causes valve to damage and to leak etc. serious consequence.
Model utility content
In order to overcome in prior art outside the petcock of fixing ball valve is exposed to, easily cause the technical problem that valve damages and leaks, the utility model provides that a kind of cost is low, take up room little, more safe and reliable fixing ball valve.
In order to realize above-mentioned model utility object, the utility model discloses a kind of fixing ball valve, comprise: a valve body, a spheroid, a valve seat, a valve rod, described valve body has a valve body chamber, described spheroid and described valve seat are all positioned at described valve body chamber, described valve seat is between described spheroid and described valve body, described valve rod is connected with described spheroid through the top of described valve body, described fixing ball valve also comprises a stationary axle and a petcock, described stationary axle is connected with described spheroid through the bottom of described valve body, and described petcock is positioned at described stationary axle.
Further, described petcock is positioned at the below of described spheroid.
Further, described stationary axle has a through hole, and one end of described through hole is connected with described valve body chamber, and the other end is connected with described petcock.
Further, described valve rod is arranged with one first axle sleeve and the second axle sleeve.
Further, described fixing ball valve also comprises a Decompression valves, and described Decompression valves is connected with described valve body chamber, for the pressure release of described fixing ball valve.
Further, described fixing ball valve comprises a drive unit, and described drive unit rotates for driving described valve rod.
Further, described drive unit is that a turbine box and rotates handwheel.
Further, described spheroid has one first fixed groove and one second fixed groove.
Further, described valve rod is connected with described spheroid by described first fixed groove, and the bottom land of described first fixed groove is circular arc, the shape of described valve rod and described first fixed groove mating shapes.
Further, described stationary axle is connected with described spheroid by described second fixed groove.
Compared with prior art, technological scheme provided by the utility model has the following advantages: the first, petcock is arranged in stationary axle, but not outside being exposed to, avoiding petcock and suffer to damage in the external world, the potential safety hazard that valve damages and leaks; The second, petcock is arranged in stationary axle, saves stationary axle material, cost-saving; Three, petcock is arranged in stationary axle, saves the installing space of fixing ball valve; Four, petcock and stem shaft are to straight-through, and the excretion of detained matter is more unimpeded; Five, the double-axle sleeve on valve rod is arranged, and is more beneficial to the normal use of valve rod.
Accompanying drawing explanation
Can to be described in detail by following model utility and institute's accompanying drawings is further understood about advantage of the present utility model and spirit.
Fig. 1 is the structural representation of fixing ball valve provided by the utility model;
Fig. 2 is the part sectioned view of the stationary axle of fixing ball valve provided by the utility model;
Fig. 3 is the structural representation of the spheroid of fixing ball valve provided by the utility model.
Embodiment
Specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing.But, the utility model should be understood as and be not limited to this mode of execution described below, and technical concept of the present utility model can combine with other known technologies or function other technologies identical with those known technologies and implements.
In the explanation of following specific embodiment, in order to clear displaying structure of the present utility model and working method, to be described by many Directional words, but by the Word Understanding such as "front", "rear", "left", "right", " outward ", " interior ", " outwards ", " inwardly ", " axis ", " radial direction " for convenience of term, and word of limitation should do not should be understood to.
The purpose of this utility model is to provide a kind of fixing ball valve, by petcock is installed in stationary axle, outside in realization elimination prior art, petcock is exposed to, easily cause the potential safety hazard that valve damages and leaks, meanwhile, compared with prior art, can reduce costs again, reduce installing space, realize the excretion that detained matter is more unobstructed.
Specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing 1-3.
Fig. 1 is the structural representation of fixing ball valve provided by the utility model, and Fig. 2 is the part sectioned view of the stationary axle of fixing ball valve provided by the utility model.As illustrated in fig. 1 and 2, the fixing ball valve that the utility model provides comprises valve body 100, valve seat 200, spheroid 300, valve rod 400, valve gap 802, petcock 600 and stationary axle 700, this valve gap 802 is connected with valve body 100, this valve body 100 comprises valve body chamber and pipeline, spheroid 300 and valve seat 200 are all arranged in this valve body chamber, valve seat 200 is between spheroid 300 and valve body 100, valve seat 200 comprises upstream valve seat and downstream valve seat, described upstream valve seat is the valve seat on one side that in media flow, pressure is higher, described downstream valve seat is the valve seat on one side that in media flow, pressure is lower.Spheroid 300 between upstream valve seat and downstream valve seat and with valve seat 200 mutually against.Spheroid 300 is installed in valve body chamber, and ball valve can rotate relative to valve body 100 around spin axis R, and spin axis R is orthogonal to longitudinal axis L.Spheroid 300 comprises a through hole 302.The diameter of the through hole 302 of spheroid 300 is almost consistent with the pipe diameter of valve body 100.Spheroid 300 can rotate between the open position and the closed position of through hole 302 transverse to pipeline of through hole 302 and pipe alignment around spin axis R.Valve seat is connected with valve body 100 by elastic element 201, and when the pressure that valve seat 200 bears increases, elastic element 201 can sponge partial pressure.Valve seat 200 is connected with spheroid 300 by Sealing, and sealing circle is a plastic material, and friction factor is little, seals.The material of valve seat 200 can be metal, pottery etc.The top of valve body 100 has a turbine box 502, is fixed with a support plate 403 between valve body 100 and turbine box 502, and described support plate 403 is for fixed valve body 100 and turbine box 502.Valve rod 400 passes top and the support plate 403 of valve body 100, and one end is connected with the upper fixed groove of spheroid 300, and for rotating sphere 300, the other end is connected with turbine box 502 by square key 404.In addition, valve rod 400 is arranged with two axle sleeves 401,402 one high and one lowly, is compared to the setting of an axle sleeve in prior art, the setting of two axle sleeves 401,402, make the radial location precision of valve rod 400 higher, and effectively reduce the radial-play of valve rod 400.Turbine box 502 is provided with a rotation handwheel 501, and rotate handwheel 501 and be with ovable valve stem 400 to rotate by turbine box 502, valve rod 400 drives spheroid 300.Stationary axle 700 is through the bottom of valve body 100, be connected with the lower fixed groove of the spheroid 300 in valve pocket, and be positioned at immediately below spheroid 300, for fixing described fixing ball valve, improve the impact resistance of described fixing ball valve, extend the working life of described fixing ball valve further.Described stationary axle 700 also has a horizontal through hole 701.
In addition, fixing ball valve provided by the utility model also has petcock 600, and this petcock 600 refers to the valve for draining residue and detained matter.This petcock 600 is positioned at stationary axle 700, communicates, and coaxially arrange with stationary axle 700 with the horizontal through hole 701 in stationary axle 700, for discharging the detained matter in valve pocket, thus keeps valve pocket cleaning inside.During installation, socket wrench can be utilized to screw outer-hexagonal petcock 600.On the one hand, because this petcock 600 is positioned at stationary axle 700, be not arranged on the outside of valve body 100 or the outside of stationary axle 700, eliminate and suffer to damage in the external world, thus cause the potential safety hazard that valve damages and leaks; On the other hand, this petcock 600 is positioned at immediately below spheroid 300, is compared in prior art the side being arranged on stationary axle 700, immediately below setting advantageously in the excretion of detained matter, can be used to discharge the detained matter overstock for a long time in valve body 100 inside.In addition, petcock 600 is positioned at stationary axle 700, saves the material needed for stationary axle 700, also saves the installing space of fixing ball valve entirety.Described petcock 600 also can be used as pressure relief opening practicality.
As shown in Figure 3, it is spheroid 300 around spin axis R at the open position schematic diagram of through hole 302 with pipe alignment to the detailed structure view of spheroid provided by the utility model.This spheroid 300 comprises upper and lower two fixed grooves.Wherein go up fixed groove 301 for matching with valve rod 400, lower fixed groove 303 is for matching with stationary axle 700.The bottom land of upper fixed groove 301 is an arc-shaped slot, the shape of the lower end of valve rod 400 and the mating shapes of upper fixed groove 301.When the through hole 302 of spheroid 300 is transverse to pipeline, because valve rod 400 and stationary axle 700 fix spheroid 300 simultaneously, therefore spheroid 300 can not be subjected to displacement.
In another kind of better embodiment, in order to realize best sealing effect, this valve seat 200 adds a groove 202, for placing plastic seal in this groove 202 on a face near spheroid 300.Like this when spheroid 300 contacts with valve seat 200, because the existence of plastic seal makes medium can not flow out between spheroid 300 and valve seat 200, and because the lower distortion of the effect of being stressed of this plastic seal is little, therefore spheroid 300 can not the plastic material on badly damaged valve seat 200 surface after being adjacent to pressurized with valve seat 200.Meanwhile, a groove 203 is set up, again for placing the seal ring of the various shapes such as 0 type or V-type in the face that we can also be connected with valve body 100 at valve seat 200.In addition, fixing ball valve provided by the utility model also has fuel feeding valve 801, described fuel feeding valve 801 for injecting oiling agent, lubrication and seal circle.Fixing ball valve provided by the utility model, also has Decompression valves 803, and Decompression valves 803, through valve body 100, is communicated with valve body chamber.The position of described Decompression valves 803 can be the arbitrary position on valve body 100.
Fixing ball valve provided by the utility model, because it is two way sealed, therefore, can be used to carry out seal tightness test, when spheroid 300 is closed, check leakage situation by the outlet of petcock 600, this kind of method is mainly used in gas seal.It is pointed out that fixing ball valve provided by the utility model, its drive unit 500 is not limited to turbine box 502 and rotates handwheel 501, and it can be any drive unit 500 that can realize valve rod 400 and rotate.
Compared with prior art, fixing ball valve provided by the utility model has the following advantages: the first, petcock is arranged in stationary axle, but not outside being exposed to, avoiding petcock and suffer to damage in the external world, the potential safety hazard that valve damages and leaks; The second, petcock is arranged in stationary axle, saves stationary axle material, cost-saving; Three, petcock is arranged in stationary axle, saves the installing space of fixing ball valve; Four, petcock and stationary axle are coaxially arranged, and are positioned at immediately below spheroid, and the excretion of detained matter is more unimpeded; Five, the double-axle sleeve on valve rod is arranged so that the radial location precision of valve rod is higher, and effectively reduces the radial-play of valve rod.
If no special instructions, occur herein be similar to " first ", the qualifier of " second " not refers to restriction to time sequencing, quantity or significance, and be only used to the technical characteristics of in the technical program to distinguish mutually with another technical characteristics.Similarly, the qualifier being similar to " " occurred herein not refers to the restriction to quantity, but describes the technical characteristics do not occurred in the preceding article.Similarly, occur before number herein be similar to " approximately ", the modifier of " approx " comprises this number usually, and its concrete implication should be understood in conjunction with context meaning.Not only similarly, only there is the noun that specific quantity measure word is modified, otherwise should regard as in this article and comprise singulative but also comprise plural form, in this technological scheme, namely can comprise odd number this technical characteristics, also can comprise this technical characteristics a plurality of.
Just preferred embodiment of the present utility model described in this specification, above embodiment is only in order to illustrate the technical solution of the utility model but not to restriction of the present utility model.All those skilled in the art comply with design of the present utility model by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should within scope of the present utility model.
Claims (10)
1. a fixing ball valve, comprise: a valve body, a spheroid, a valve seat, a valve rod, described valve body has a valve body chamber, described spheroid and described valve seat are all positioned at described valve body chamber, described valve seat is between described spheroid and described valve body, described valve rod is connected with described spheroid through described valve body, described fixing ball valve also comprises a stationary axle and a petcock, described stationary axle is connected with described spheroid through the bottom of described valve body, it is characterized in that: described petcock is positioned at described stationary axle.
2. fixing ball valve as claimed in claim 1, it is characterized in that, described petcock is positioned at the below of described spheroid.
3. fixing ball valve as claimed in claim 1, it is characterized in that, described stationary axle has a through hole, and one end of described through hole is connected with described valve body chamber, and the other end is connected with described petcock.
4. fixing ball valve as claimed in claim 1, is characterized in that, described valve rod is arranged with one first axle sleeve and the second axle sleeve.
5. fixing ball valve as claimed in claim 1, it is characterized in that, described fixing ball valve also comprises a Decompression valves, and described Decompression valves is connected with described valve body chamber, for the pressure release of described fixing ball valve.
6. fixing ball valve as claimed in claim 1, it is characterized in that, described fixing ball valve comprises a drive unit, and described drive unit rotates for driving described valve rod.
7. fixing ball valve as claimed in claim 6, is characterized in that, described drive unit is that a turbine box and rotates handwheel.
8. fixing ball valve as claimed in claim 1, it is characterized in that, described spheroid has one first fixed groove and one second fixed groove.
9. fixing ball valve as claimed in claim 8, is characterized in that, described valve rod is connected with described spheroid by described first fixed groove, and the bottom land of described first fixed groove is circular arc, the shape of described valve rod and described first fixed groove mating shapes.
10. fixing ball valve as claimed in claim 8, is characterized in that, described stationary axle is connected with described spheroid by described second fixed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807360.2U CN205036885U (en) | 2015-10-16 | 2015-10-16 | Fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807360.2U CN205036885U (en) | 2015-10-16 | 2015-10-16 | Fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036885U true CN205036885U (en) | 2016-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520807360.2U Active CN205036885U (en) | 2015-10-16 | 2015-10-16 | Fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594311A (en) * | 2015-10-16 | 2017-04-26 | 贺增华 | Fixed ball valve |
-
2015
- 2015-10-16 CN CN201520807360.2U patent/CN205036885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594311A (en) * | 2015-10-16 | 2017-04-26 | 贺增华 | Fixed ball valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |