CN207316098U - The spacing ring structure of three eccentricity seal butterfly valve - Google Patents
The spacing ring structure of three eccentricity seal butterfly valve Download PDFInfo
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- CN207316098U CN207316098U CN201721443595.3U CN201721443595U CN207316098U CN 207316098 U CN207316098 U CN 207316098U CN 201721443595 U CN201721443595 U CN 201721443595U CN 207316098 U CN207316098 U CN 207316098U
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- valve
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- spacing ring
- rod
- eccentricity
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Abstract
The utility model belongs to valve body technical field, it is related to a kind of spacing ring structure of three eccentricity seal butterfly valve, including valve body, rotated in the axis hole of valve body and valve rod is set, valve rod, which is placed on the body of rod in body cavity, is arranged valve plate pedestal, correspond on valve rod at valve plate pedestal upper and lower ends and be arranged restraining position ring block respectively, dustband is provided with the annular groove of spacing ring, the outer end face of the axially-extending portion of spacing ring is resisted against on valve body.The utility model product ensure that valve rod and bearing will not be stuck；The dust-tight manner reduces the gap between bearing and valve plate, reduces deflection when valve rod is pressurized, and reduces the moment of torsion of switch.
Description
Technical field
The utility model belongs to valve body technical field, is related to a kind of spacing ring structure of three eccentricity seal butterfly valve.
Background technology
Butterfly valve is due to being valve with fastest developing speed in recent ten years with good flow regulating function and closing sealing characteristics
One of door kind.The use scope of butterfly valve is very extensive.Its kind used and quantity still are continuing to expand, and to high temperature, height
Pressure, heavy caliber, high leakproofness, long-life, excellent control characteristic, and the multi-functional development of a valve.Its reliability and other property
Energy index reaches higher level.Existing three eccentricity sealed butterfly valve it is general using be not added with it is dust-proof or it is dust-proof on valve body by the way of,
It is not added with dust-proof be easy to causeing valve rod and bearing is stuck；Dust-proof position can cause position of bearings to move up on valve body, from valve plate position
Distance become larger, valve rod leans on bearings, so causes the Support Position of valve rod to change, valve rod be pressurized when deflection
Become larger, influence the moment of torsion of valve.
The content of the invention
In view of the above-mentioned problems, providing a kind of spacing ring structure of three eccentricity seal butterfly valve, which can protect the utility model
Demonstrate,proving valve rod will not be stuck, effectively reduces the moment of torsion of valve.
According to the technical solution of the utility model：A kind of spacing ring structure of three eccentricity seal butterfly valve, it is characterised in that：Bag
Valve body is included, is rotated in the axis hole of valve body and valve rod is set, valve rod, which is placed on the body of rod in body cavity, is arranged valve plate pedestal, on valve rod
Corresponding to restraining position ring block is arranged respectively at valve plate pedestal upper and lower ends, dustband is provided with the annular groove of spacing ring, spacing ring
The outer end face of axially-extending portion is resisted against on valve body.
As further improvement of the utility model, the valve rod is rotatably dispose in the axis hole of valve rod by bearing.
As further improvement of the utility model, epimere axis hole and the body cavity junction of the valve body set valve body
Endoporus boss one, the axially-extending portion of top spacing ring are resisted against on valve body inner bore boss one；The hypomere axis hole and valve body of valve body
Inner cavity junction sets valve body inner bore boss two, and the axially-extending portion of lower limit ring is resisted against on valve body inner bore boss two.
As further improvement of the utility model, seal and match somebody with somebody between the valve seat that the valve plate pedestal and body cavity are formed
Close.
The utility model has technical effect that：The utility model product ensure that valve rod and bearing will not be stuck；This is anti-
Dirt mode reduces the gap between bearing and valve plate, reduces deflection when valve rod is pressurized, and reduces the moment of torsion of switch.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is partial enlarged view at A in Fig. 1.
Embodiment
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
In Fig. 1,2, including valve body 1, one 1-1 of valve body inner bore boss, two 1-2 of valve body inner bore boss, valve plate pedestal 2, valve rod
3rd, bearing 4, spacing ring 5, axially-extending portion 5-1 etc..
As shown in Figure 1, 2, the utility model is a kind of spacing ring structure of three eccentricity seal butterfly valve, including valve body 1, valve body
Rotated in 1 axis hole and valve rod 3 is set, valve plate pedestal 2 is arranged on the body of rod that valve rod 3 is placed in 1 inner cavity of valve body, is corresponded on valve rod 3
It is arranged restraining position ring block 5 respectively at 2 upper and lower ends of valve plate pedestal, dustband 6 is provided with the annular groove of spacing ring 5, spacing ring 5
The outer end face of axially-extending portion 5-1 is resisted against on valve body 1.
Valve rod 3 is rotatably dispose in by bearing 4 in the axis hole of valve rod 3.
The epimere axis hole of valve body 1 sets one 1-1 of valve body inner bore boss, the axial direction of top spacing ring with body cavity junction
Extension 5-1 is resisted against on one 1-1 of valve body inner bore boss；The hypomere axis hole of valve body 1 is set in valve body with body cavity junction
Two 1-2 of hole boss, the axially-extending portion of lower limit ring are resisted against on two 1-2 of valve body inner bore boss.
Seal and coordinate between the valve seat that valve plate pedestal 2 and 1 inner cavity of valve body are formed.
The course of work of the utility model is as follows：By the increase dustband 6 in spacing ring 5, valve rod 3 is effectively protected not
Can be stuck with bearing 4；For dustband 6 in spacing ring 5, bearing 4 can be closer to valve plate pedestal 2, in pressure-bearing, valve plate pedestal
2 are subject to pressure medium band ovable valve stem 3 to deform, and bearing 4 is as support, and nearer from forced position, valve rod deformation is smaller.
Claims (4)
- A kind of 1. spacing ring structure of three eccentricity seal butterfly valve, it is characterised in that：Including valve body（1）, valve body（1）Axis hole transfer It is dynamic that valve rod is set（3）, valve rod（3）It is placed in valve body（1）Valve plate pedestal is arranged on the body of rod in inner cavity（2）, valve rod（3）On correspond to Valve plate pedestal（2）Restraining position ring block is arranged at upper and lower ends respectively（5）, spacing ring（5）Annular groove in be provided with dustband（6）, limit Position ring（5）Axially-extending portion（5-1）Outer end face be resisted against valve body（1）On.
- 2. the spacing ring structure of three eccentricity seal butterfly valve as claimed in claim 1, it is characterised in that：The valve rod（3）Pass through Bearing（4）It is rotatably dispose in valve rod（3）Axis hole in.
- 3. the spacing ring structure of three eccentricity seal butterfly valve as claimed in claim 1, it is characterised in that：The valve body（1）It is upper Section axis hole sets valve body inner bore boss one with body cavity junction（1-1）, the axially-extending portion of top spacing ring（5-1）Against In valve body inner bore boss one（1-1）On；Valve body（1）Hypomere axis hole and body cavity junction valve body inner bore boss two is set （1-2）, the axially-extending portion of lower limit ring is resisted against valve body inner bore boss two（1-2）On.
- 4. the spacing ring structure of three eccentricity seal butterfly valve as claimed in claim 1, it is characterised in that：The valve plate pedestal（2） With valve body（1）Seal and coordinate between the valve seat that inner cavity is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721443595.3U CN207316098U (en) | 2017-10-30 | 2017-10-30 | The spacing ring structure of three eccentricity seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721443595.3U CN207316098U (en) | 2017-10-30 | 2017-10-30 | The spacing ring structure of three eccentricity seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207316098U true CN207316098U (en) | 2018-05-04 |
Family
ID=62380324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721443595.3U Active CN207316098U (en) | 2017-10-30 | 2017-10-30 | The spacing ring structure of three eccentricity seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207316098U (en) |
-
2017
- 2017-10-30 CN CN201721443595.3U patent/CN207316098U/en active Active
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