CN203784347U - PVC (rigid polyvinyl chloride)-U combined type ball valve - Google Patents
PVC (rigid polyvinyl chloride)-U combined type ball valve Download PDFInfo
- Publication number
- CN203784347U CN203784347U CN201420036725.1U CN201420036725U CN203784347U CN 203784347 U CN203784347 U CN 203784347U CN 201420036725 U CN201420036725 U CN 201420036725U CN 203784347 U CN203784347 U CN 203784347U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spheroid
- pvc
- combined type
- 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
- 229920000915 polyvinyl chloride Polymers 0.000 title abstract 4
- 239000004800 polyvinyl chloride Substances 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims description 5
- 210000000664 rectum Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a PVC (rigid polyvinyl chloride)-U combined type ball valve, which comprises a sealing seat, a ball body I, a main valve body and a valve body end part, wherein the main valve body is provided with a valve rod, the valve rod is connected with a handle I, the main valve body and the valve body end part are fixedly connected through threads by a valve cap of the valve body, the connecting part of the sealing seat and the valve body end part as well as the main valve body is provided with an O-shaped sealing ring I, and the connecting part of the sealing seat and the ball body I is provided with a sealing ring I. The ball valve has the advantages that the operation is simple and flexible, the assembly effect is good, and the sealing performance is reliable.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of PVC-U combined type ball valve.
Background technique
Ball valve, is to be driven by valve rod by open-shut device (spheroid), and the valve rotating around the axis of valve rod, is mainly used in blocking or connecting the medium in pipeline, also can be used for adjusting and the control of fluid.Ball valve made of plastic especially PVC-U ball valve because the reasons such as inexpensive, the excellent anti-corrosion performance of light weight are widely used.Existing market ball valve made of plastic has two kinds of structures substantially: integral type and combined type, as shown in Figure 2, it is to be ball and valve rod integrated by molding and forming spheroid II 14(spheroid to integrated ball valve), seal ring II 15 is injected and molded in valve body 10 in the mode of inserts again; Then valve body 10 coordinates O RunddichtringO II 13, handle II 11 and handle gland 12 to assemble.
Integrated ball valve has simple in structure, the advantages such as forming step is few, but it exists valve body moulding to occur after defect the impaired and problem of waste of spheroid II 14 and seal ring II 15 parts, in its forming process, form seal pressure and make ball valve play the effect of sealing by seal ring II 15 and with the coated compression of spheroid II 14 simultaneously, but the coated degree compressing of valve body 10 has determined the sealability of ball valve, if coated tension, seal pressure is excessive, and the 15 meeting distortion of seal ring II seriously cause damage seal failure or spheroid II 14 cannot be rotated; Coated not enough, too small there will be of seal pressure, rotates easily and the situation that sealing cannot realize.Therefore the control ratio of integrated ball valve moulding process is more difficult.
And combined type ball valve for solve integrated ball valve exist the problems referred to above produce, the whole independent molding and forming of its parts, therefore fairly simple in the control of moulding process, can not cause valve body moulding failure and the situation of component waste, but combined type ball valve element is more and higher to required precision, aspect mould development, expense is higher.
Model utility content
Technical problem to be solved in the utility model is to provide that a kind of sealability is more reliable, operation PVC-U combined type ball valve more flexibly.
For addressing the above problem, a kind of PVC-U combined type ball valve described in the utility model, is characterized in that: it comprises sealing seat, spheroid I, main valve body, valve end; Described main valve body is provided with valve rod, and this valve rod is connected with handle I; Described main valve body and described valve end are threaded connection fixing by valve body bonnet; Described sealing seat and described valve end and described main valve body connecting part are provided with O RunddichtringO I; Described sealing seat and described spheroid I connecting part are equipped with seal ring I.
Described valve body bonnet is rotation stud type gland.
It is spherical that described spheroid I all the other four sides except latus rectum end is square-shaped planar are spheroid.
The utility model compared with prior art has the following advantages:
1, because the spheroid of ball valve in the utility model all the other four sides except latus rectum end, all to retain spheroid spherical, are not therefore affecting under spheroid rotation situation cutting spherical surface quadrate plane, both can conservation, can make again valve body structure compactness attractive in appearance.
2, the utility model is adjusted the seal pressure between ball-valve sealing base and spheroid I by valve body bonnet extruding O RunddichtringO I and seal ring I, makes ball valve sealing more reliable, can also open and close cycle original position while operating at ball valve.
3, the utility model is compared traditional ball valve simple in production process operation, flexible, and assembling effect is good.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is integral type ball-valve structure schematic diagram.
In figure: 1-valve body bonnet, 2-handle I, 3-valve rod, 4-sealing seat, 5-seal ring I, 6-spheroid I, 7-main valve body, 8-O RunddichtringO I, 9-valve end, 10-valve body, 11-handle II, 12-handle gland, 13-O RunddichtringO II, 14-spheroid II, 15-seal ring II.
Embodiment
As shown in Figure 1, a kind of PVC-U combined type ball valve, it comprises sealing seat 4, spheroid I 6, main valve body 7, valve end 9.Main valve body 7 is provided with valve rod 3, and this valve rod 3 is connected with handle I 2; Main valve body 7 is threaded connection fixing with valve end 9 by valve body bonnet 1; Sealing seat 4 is provided with O RunddichtringO I 8 with valve end 9 and main valve body 7 connecting parts; Sealing seat 4 is equipped with seal ring I 5 with spheroid I 6 connecting parts.
Wherein: valve body bonnet 1 is rotation stud type gland.
It is spherical that spheroid I 6 all the other four sides except latus rectum end is square-shaped planar are spheroid.
Claims (3)
1. a PVC-U combined type ball valve, is characterized in that: it comprises sealing seat (4), spheroid I (6), main valve body (7), valve end (9); Described main valve body (7) is provided with valve rod (3), and this valve rod (3) is connected with handle I (2); Described main valve body (7) is threaded connection fixing with described valve end (9) by valve body bonnet (1); Described sealing seat (4) is provided with O RunddichtringO I (8) with described valve end (9) and described main valve body (7) connecting part; Described sealing seat (4) is equipped with seal ring I (5) with described spheroid I (6) connecting part.
2. a kind of PVC-U combined type ball valve as claimed in claim 1, is characterized in that: described valve body bonnet (1) is rotation stud type gland.
3. a kind of PVC-U combined type ball valve as claimed in claim 1, is characterized in that: it is spherical that described spheroid I (6) all the other four sides except latus rectum end is square-shaped planar are spheroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036725.1U CN203784347U (en) | 2014-01-21 | 2014-01-21 | PVC (rigid polyvinyl chloride)-U combined type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036725.1U CN203784347U (en) | 2014-01-21 | 2014-01-21 | PVC (rigid polyvinyl chloride)-U combined type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784347U true CN203784347U (en) | 2014-08-20 |
Family
ID=51320535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036725.1U Expired - Fee Related CN203784347U (en) | 2014-01-21 | 2014-01-21 | PVC (rigid polyvinyl chloride)-U combined type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784347U (en) |
-
2014
- 2014-01-21 CN CN201420036725.1U patent/CN203784347U/en not_active Expired - Fee Related
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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: 20140820 |