CN209262296U - A kind of low temperature floating ball valve and its sphere structure - Google Patents
A kind of low temperature floating ball valve and its sphere structure Download PDFInfo
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- CN209262296U CN209262296U CN201821570595.4U CN201821570595U CN209262296U CN 209262296 U CN209262296 U CN 209262296U CN 201821570595 U CN201821570595 U CN 201821570595U CN 209262296 U CN209262296 U CN 209262296U
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- sphere structure
- valve seat
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Abstract
The utility model discloses a kind of low temperature floating ball valve and its sphere structures, which mainly includes the components such as valve body, valve seat, sphere and valve rod；The utility model is not easily disconnected from for ball valve sphere and sealing surface in opening-closing process and causes stuck situation, in the design process, sphere structure is improved, valve seat and sphere structure form sealing surface between the two, sphere structure at the sealing surface is designed to one section of plane, this section of plane is connect with spherical part below, forms double rounded structures, the accident that can not be opened and closed is twisted off so as to avoid ball locking, valve rod.
Description
Technical field
The utility model relates to valve field, in particular to a kind of low temperature floating ball valve and its sphere structure.
Background technique
Ball valve is since fluid resistance is small, easy to operate, sealed reliable, and opening and closing is rapidly and convenient for gas control and automatically controlled etc. excellent
More performance is extensive in industrial applications such as petrochemical industry, long-distance transport pipes.
As shown in Figure 1, in the prior art, the spherical surface of sphere and end face are wedge angles, without smooth excessive.The sphere of ball valve exists
It in use process, is easy to appear sphere and is not easily disconnected from sealing surface, cause stuck situation, valve rod, which twists off, to be opened and closed, reliably
Property is poor.So needing to guarantee the reliability between sphere and sealing surface face in ball valve opening and closing use process.
Utility model content
The purpose of the utility model is to provide a kind of low temperature floating ball valve and its sphere structures, by improving low temperature float ball
The spherical surface of sphere and end face have been designed to fillet, by ball design at plane, have formed it into fillet, protected by the structure of valve sphere
Hinder the reliability of ball valve work, and sphere spherical surface in the prior art and end face are wedge angles, without smooth excessive, to solve
Sphere and sealing surface, which are not easily disconnected from, in opening-closing process causes stuck problem.
In order to achieve the above object, the utility model discloses a kind of low temperature floating ball valve sphere structure, the sphere knots
Structure and the valve seat on the outside of it form sealing pair, and the valve seat is arranged in valve body, and the sphere structure passes through valve connected to it
Bar is opened and closed, and rounded structure in pairs is designed in the spherical surface of the sphere structure and end face.
Preferably, sealing surface is formed between the valve seat and the sphere structure, by the plane of design and its top sphere
Design rounded structure in pairs in the spherical part junction of part and lower section.
Preferably, tangent connection is set by the plane of design and its top spherical part and the spherical part of lower section.
Preferably, by the plane of design and its top spherical part and the spherical part of lower section design rounded structure in pairs and
The valve seat is adapted.
Preferably, the valve body is connect by full thread stud and heavy hex nut with a valve deck.
The utility model additionally provides a kind of low temperature floating ball valve comprising sphere structure as described above, and the low temperature is floating
Dynamic ball valve also includes valve body, valve rod and valve seat；The sphere structure is opened and closed by valve rod connected to it, and the valve seat is set
It sets in the valve body, the valve seat is arranged on the outside of the sphere structure, and the sphere structure and the valve seat are formed and sealed
Pair, the spherical surface of the sphere structure and end face form double fillets.
Compared with prior art, the utility model has the following beneficial effects: the logical low temperature floating ball valve provided of the utility model
The spherical surface of sphere at sealing surface and end face are designed rounded structure in pairs, can effectively solve opening and closing by the improvement structure of sphere
Sphere is not easily disconnected from sealing surface in the process, and ball locking and valve rod is caused to twist off the problem of can not opening and closing.
Detailed description of the invention
Fig. 1 traditional sphere structure schematic diagram in the prior art；
The low temperature floating ball valve general assembly schematic diagram of Fig. 2 the utility model；
The improved sphere structure schematic diagram of Fig. 3 the utility model；
The partial structural diagram of the plane of the ball design of Fig. 4 the utility model.
Specific embodiment
The utility model provides a kind of low temperature floating ball valve and its sphere structure, in order to keep the utility model more obvious
It is understandable, it is newly described further below in conjunction with the drawings and specific embodiments to originally practical.
Fig. 2 show the low temperature floating ball valve general assembly schematic diagram of the utility model, and the utility model is floated based on low temperature
Ball valve, the ball-valve structure mainly include that valve body 1, sphere 2, valve rod 3 and valve seat 4(are also referred to as seal receptacle).
Valve body 1 is directly connected to pipeline, can be loaded the components such as valve seat 4, is one of main pressure-containing member.Valve seat 4
It is mounted in valve body 1.It is connected between valve deck 5 and valve body 1 by full thread stud 7 and heavy hex nut 8.Valve seat 4 is gone back and ball
Body 2 forms sealing pair, passes through the circulation of rotation control medium.Sphere 2 is connect with valve rod 3；Axle sleeve 9 passes through the connection driving of flat key 10
Device 11 and valve rod 3 open and close sphere 2 for driving stem 3.
Wherein, valve seat 4 is sealed in the outside of sphere 2, and the two contact surface forms the sealing surface between sphere 2 and valve seat 4.
Fig. 3 show the improved sphere structure schematic diagram of the utility model, and Fig. 4 show the ball design in Fig. 3
Plane amplification three times partial structural diagram.
The utility model is to the Optimal improvements of traditional low temperature floating ball valve sphere structure, by the spherical surface of sphere 2 and end face
It has been designed to fillet.
The present embodiment improves sphere 2 and is not easy with sealing surface by the way that sphere 2 is designed to rounded structure in process
The problem of disengaging, it is ensured that the reliability of the ball valve work of the utility model, avoiding the problem that valve rod 3 twists off can not open and close.
As shown in Fig. 3 and Fig. 4 combination, the improvement part of sphere 2 is denoted as I, wherein in improvement part I, by the sealing surface
The sphere 2 at place is designed to that one section of plane P, this section of plane P are connected with the circular arc portion P of the circular arc portion O of upper part and lower part, shape
Fillet in pairs.Due to forming double fillets, then can improve the problem of being not readily disengaged between sphere and sealing surface.Illustratively,
Plane P and circular arc portion O and circular arc portion P are set as tangent connection, so that forming double fillets, and are smoothly connected, guarantee this
The reliability of the ball valve work of utility model.
Wherein, the size of plane P is mutually fitted with the low temperature floating ball valve overall structure of the utility model and its working condition
Match, for example, the structure snd size of sphere itself and the structure snd size of valve seat etc., with guarantee valve rod opening and closing it is normal smoothly into
Row.
In conclusion the utility model for ball valve sphere and sealing surface in opening-closing process be not easily disconnected from cause it is stuck
The case where, a kind of improvement of low temperature floating ball valve sphere structure is disclosed, by ball design rounded structure in pairs, so as to avoid
Ball locking, valve rod twist off the accident that can not be opened and closed.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (4)
1. a kind of low temperature floating ball valve sphere structure (2), which is characterized in that the sphere structure (2) and the valve seat (4) on the outside of it
Form sealing pair, the valve seat (4) is arranged in valve body (1), the sphere structure (2) by valve rod connected to it (3) into
Row opening and closing, the spherical surface of the sphere structure (2) and end face form double fillets；Between the valve seat (4) and the sphere structure (2)
Sealing surface is formed, fillet in pairs is designed into the spherical part junction (Q) of plane (P) and its top spherical part (O) and lower section
Structure；Wherein, tangent connection is set by plane (P) and its top spherical part (O) and the spherical part (Q) of lower section.
2. a kind of low temperature floating ball valve sphere structure (2) as described in claim 1, which is characterized in that by plane (P) and thereon
The spherical part (Q) of square spherical part (O) and lower section designs rounded structure in pairs and the valve seat (4) is adapted.
3. a kind of low temperature floating ball valve sphere structure (2) as described in claim 1, which is characterized in that the valve body (1) passes through
Full thread stud (7) and heavy hex nut (8) connect with a valve deck (5).
4. one kind includes the low temperature floating ball valve of sphere structure as claimed in any one of claims 1-3 (2), feature exists
In also comprising valve body (1), valve rod (3) and valve seat (4)；The sphere structure (2) is opened by valve rod connected to it (3)
It closes, the valve seat (4) is arranged in the valve body (1), and valve seat (4) setting is on the outside of the sphere structure (2), the ball
Body structure (2) and the valve seat (4) form sealing pair, and the spherical surface of the sphere structure (2) and end face form double fillets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821570595.4U CN209262296U (en) | 2018-09-26 | 2018-09-26 | A kind of low temperature floating ball valve and its sphere structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821570595.4U CN209262296U (en) | 2018-09-26 | 2018-09-26 | A kind of low temperature floating ball valve and its sphere structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262296U true CN209262296U (en) | 2019-08-16 |
Family
ID=67553155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821570595.4U Active CN209262296U (en) | 2018-09-26 | 2018-09-26 | A kind of low temperature floating ball valve and its sphere structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262296U (en) |
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2018
- 2018-09-26 CN CN201821570595.4U patent/CN209262296U/en active Active
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