CN205918932U - Runner seal structure on ball valve - Google Patents
Runner seal structure on ball valve Download PDFInfo
- Publication number
- CN205918932U CN205918932U CN201620977624.3U CN201620977624U CN205918932U CN 205918932 U CN205918932 U CN 205918932U CN 201620977624 U CN201620977624 U CN 201620977624U CN 205918932 U CN205918932 U CN 205918932U
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- valve
- valve body
- medium
- spring
- runner
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Abstract
The utility model provides a runner seal structure on ball valve, includes valve body and case, its characterized in that: the one end of valve body is equipped with the medium import, is equipped with the medium export on another tip of valve body, and medium import and medium exit are on same axis, the inside valve pocket that is equipped with of valve body between medium import and the medium export, the case rotates and sets up in the valve pocket, be equipped with the medium runner that the axial runs through its body on the case, medium import, medium export and medium runner respectively are equipped with runner seal assembly on being in same horizontal plane between case and medium import and the medium export, runner seal assembly is including setting up the base on the valve body to and the disk seat of setting on the base, the cross -section of base is the annular, and the annulus outer side face of base goes up circumference and has offered a plurality of spring holes, the downthehole spring that is provided with of spring, and the outer tip of spring supports and leans on on the valve body, the lateral surface of disk seat supports and leans on on the base, still is equipped with the sealing washer between disk seat and the base, the interior port of disk seat with the spheroid lateral surface of case is closely laminated.
Description
Technical field
This utility model is related to valve field, the flow passage sealing structure on more particularly, to a kind of ball valve.
Background technology
Ball valve is a kind of common valve, and ball valve is mainly used to make the flowing cutting off, distribute and changing medium in pipeline
Direction, it only needs to be closed tightly with the operation ratating 90 degrees.Ball valve optimum switchs, stop valve uses, the master of ball valve
Want feature to be the features such as compact conformation itself, sealed reliable, structure are simple, be widely used in every profession and trade.But, existing
Ball valve has following weak point: completely rigid sealing between valve element and valve seat, due to the presence of pressure medium, spool face with
Frictional force between valve seat is larger, after long-time use, easily causes contact surface abrasion and reduces sealing effectiveness, substantially reduce
The service life of ball valve and serviceability.
Content of the invention
In order to solve the above problems, the purpose of this utility model is to provide the flow passage sealing structure on a kind of ball valve, should
Flow passage sealing structure lift-off seal effect, and extend ball valve service life.
In order to realize above-mentioned purpose, this utility model employs following technical scheme:
A kind of flow passage sealing structure on ball valve, including valve body and valve element；It is characterized in that: one end of described valve body is provided with
Medium entrance, the other end of valve body is provided with media outlet, and medium entrance and media outlet are on same axis；Medium enters
Valve inner between mouth and media outlet is provided with valve pocket；Described valve core rotation is arranged in described valve pocket, and valve element is provided with axle
To the medium runner running through its body, medium entrance, media outlet and medium runner are in same level, valve element and medium
It is respectively provided with runner black box between import and media outlet；Described runner black box includes the pedestal being arranged on valve body,
And it is arranged on the valve seat on pedestal；The ring-shaped section and ring-shaped of pedestal, on the ring body lateral surface of pedestal, circumference offers some springs
Hole, spring in the hole is provided with spring, and the outer end of spring is resisted against on valve body；The lateral surface of described valve seat is resisted against on pedestal,
It is additionally provided with sealing ring, the inner port of valve seat is fitted tightly with the spheroid lateral surface of described valve element between valve seat and pedestal.
Preferably, described valve body includes the first valve body, and it is fastened on the second valve body on the first valve body；Described
Medium entrance is opened on the end of the first valve body, and media outlet is opened on the end of the second valve body.
This utility model adopts technique scheme, and this ball valve adopts novel flow channel black box, this runner black box
In valve seat be arranged on pedestal, valve seat contacts sealing with the spheroid lateral surface of valve element, and is provided between described pedestal and valve body
Spring is adjusted, using this compensation sealing means of spring fitted seal；In sealing, the elastic force of spring acts on base successively
Seat, valve seat, make the cooperation of valve seat and valve element tensioner thus lift-off seal effect；During valve core rotation, valve seat compresses further
Spring, makes valve core rotation more convenient；Compared to the rotation process in rigid sealing structure, during this valve core rotation, produce friction
Power greatly reduces, thus alleviating the wear condition of spool face, extends ball valve service life.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is a portion enlarged drawing of Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is described in further detail.
A kind of ball valve as shown in Figure 1 and Figure 2, including ball valve assembly, and for driving the operation machine of described ball valve assembly
Structure.
Described ball valve assembly includes valve body and valve element 2, and valve body includes the first valve body 11, and is fastened on the first valve body
The second valve body 12 on 11, the second valve body 12 coordinates hex nut to be connected and fixed on the first valve body 11 by isometric studs
On, it is easy to the installation to inner spool 2 and maintenance by the way of dual-valve body is connected.The valve body end of described first valve body 11
The valve end of portion and the second valve body 12 is all attached to the ring flange on medium pipeline, and the end of the first valve body 11 sets
There is a medium entrance 13, the end of the second valve body 12 is provided with media outlet 14, medium entrance 13 and media outlet 14 are in same
On axis.Valve inner between described medium entrance 13 and media outlet 14 is provided with valve pocket 15, on the valve body of valve pocket 15 bottom
It is provided with locating shaft 16, the valve body at valve pocket 15 top is movably equipped with valve rod 3, valve rod 3 the inner is in valve pocket 15, outside valve rod 3
End is in outside valve body.Described operating mechanism includes operating handwheel 41 and transmission box assembly 42, and operation handwheel 41 passes through transmission case
Assembly 42 connects described valve rod 3.Described valve element 2 is arranged in the valve pocket 15 of valve body, and the bottom of valve element 2 is positioned at described positioning
On axle 16, the upper end of valve element 2 is connected with the bottom of valve rod 3, and described valve element 2 is provided with Jie axially penetrating through its body
Mass flow road 21, medium entrance 13, media outlet 14 and medium runner 21 are in same level.In said structure, ball valve
Structure is novel, and valve element 2 is positioned inside valve pocket 15, and the bottom of valve element 2 is positioned on described locating shaft 16, the upper end of valve element 2
Portion is connected with the bottom of valve rod 3.During work, operator drive described valve body by operating mechanism, in the band of valve rod 3
Under dynamic, valve element 2, with locating shaft 16 as axis rotation, thus realizing the control to runner flow, has simple to operate, 2 turns of valve element
The little advantage of dynamic torque.Specifically, when described medium entrance 13, media outlet 14 and medium runner 21 communicate, ball valve is in out
Open state；When valve element 2 upset makes the spheroid side of valve element 2 block medium channel, ball valve is closed.
Specifically, the upper end of described valve element 2 offers step draw-in groove, step draw-in groove include one-level step groove and
Two stage steps groove；Described valve rod 3 is positioned on valve body by axle bed 32, and the bottom of valve rod 3 is provided with flat 31；Valve rod 3
Flat 31 positioning is connected in the two stage steps groove of valve element 2, and the bottom of axle bed 32 is positioned in the one-level step groove of valve element 2.
It is provided with packing seal assembly, packing seal assembly includes being arranged between valve rod 3 and axle bed 32 between described valve rod 3 and axle bed 32
Filler 33, and for position described filler filler set 34, and for position described filler set 34 hold-down grid 35；
Described filler set 34 and hold-down grid 35 are all set on valve rod 3, and hold-down grid 35 connects institute by connection member (as screw rod)
State axle bed 32.In said structure, packing seal assembly is arranged on the filler between valve rod 3 and axle bed 32, in packing seal assembly
For ensureing the sealing between valve rod 3 and axle bed 32, filler set 34 and hold-down grid 35 for positioning to described filler,
So that filler is fixed, prevent filler from producing in the friction process long-term with described valve rod 3 and loosen.Thus lifting its sealing effect
Really, so that ball valve is difficult to produce medium leakage and permeate, ensure valve body, extend the service life of valve body.
It is respectively provided with runner black box between described valve element 2 and medium entrance 13 and media outlet 14.Runner black box
Including the pedestal 22 being arranged on valve body, and it is arranged on the valve seat 23 on pedestal 22；The ring-shaped section and ring-shaped of pedestal 22, pedestal 22
Ring body lateral surface on circumference offer some spring eyes 24, be provided with spring (not shown) in spring eye 24, spring
Outer end is resisted against on valve body；The lateral surface of described valve seat 23 is resisted against on pedestal 22, is additionally provided between valve seat 23 and pedestal 22
Sealing ring 25, the inner port of valve seat 23 is fitted tightly with the spheroid lateral surface of described valve element 2.In said structure, runner sealing group
Valve seat 23 in part is arranged on pedestal 22, and valve seat 23 contacts sealing with the spheroid lateral surface of valve element 2, and described pedestal 22 and valve
It is provided with spring between body to adjust, using this compensation sealing means of spring fitted seal；In sealing, the elastic force of spring according to
Secondary effect pedestal 22, valve seat 23, make valve seat 23 with the cooperation of valve element 2 tensioner thus lift-off seal effect.In valve element 2 rotation process
In, the further compression spring of valve seat 23, so that valve element 2 is rotated more convenient.Compared to the rotation process in rigid sealing structure, this valve
Producing frictional force in core 2 rotation process to greatly reduce, thus alleviating the wear condition on valve element 2 surface, extending ball valve service life.
It should be appreciated that above-mentioned specific embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, and do not constitute to restriction of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvement done etc., should be included within protection domain of the present utility model.Additionally,
This utility model claims are intended to fall into scope and border or this scope and border
Whole changes in equivalents and modification.
Claims (2)
1. the flow passage sealing structure on a kind of ball valve, including valve body and valve element；It is characterized in that: one end of described valve body is provided with Jie
Matter import, the other end of valve body is provided with media outlet, and medium entrance and media outlet are on same axis；Medium entrance
Valve inner and media outlet between is provided with valve pocket；Described valve core rotation is arranged in described valve pocket, and valve element is provided with axial direction
Run through the medium runner of its body, medium entrance, media outlet and medium runner are in same level, and valve element is entered with medium
It is respectively provided with runner black box between mouth and media outlet；Described runner black box includes the pedestal being arranged on valve body, with
And it is arranged on the valve seat on pedestal；The ring-shaped section and ring-shaped of pedestal, on the ring body lateral surface of pedestal, circumference offers some spring eyes,
Spring in the hole is provided with spring, and the outer end of spring is resisted against on valve body；The lateral surface of described valve seat is resisted against on pedestal, valve seat
It is additionally provided with sealing ring and pedestal between, the inner port of valve seat is fitted tightly with the spheroid lateral surface of described valve element.
2. the flow passage sealing structure on a kind of ball valve according to claim 1 it is characterised in that: described valve body includes first
Valve body, and it is fastened on the second valve body on the first valve body；Described medium entrance is opened on the end of the first valve body, is situated between
Matter outlet is opened on the end of the second valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977624.3U CN205918932U (en) | 2016-08-29 | 2016-08-29 | Runner seal structure on ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977624.3U CN205918932U (en) | 2016-08-29 | 2016-08-29 | Runner seal structure on ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918932U true CN205918932U (en) | 2017-02-01 |
Family
ID=57868908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620977624.3U Active CN205918932U (en) | 2016-08-29 | 2016-08-29 | Runner seal structure on ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918932U (en) |
-
2016
- 2016-08-29 CN CN201620977624.3U patent/CN205918932U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |