CN204692635U - Ball valve ball seal structure - Google Patents
Ball valve ball seal structure Download PDFInfo
- Publication number
- CN204692635U CN204692635U CN201520325781.1U CN201520325781U CN204692635U CN 204692635 U CN204692635 U CN 204692635U CN 201520325781 U CN201520325781 U CN 201520325781U CN 204692635 U CN204692635 U CN 204692635U
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- China
- Prior art keywords
- seal
- ring
- seal ring
- spheroid
- elastic ring
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- Expired - Fee Related
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Abstract
The utility model provides a kind of ball valve ball seal structure, belongs to valve technology field; Which solve the problem of existing valve seal difference.The utility model comprises spheroid, valve body and seal ring, valve body is provided with seal groove, seal ring is placed in seal groove, inside seal ring, position is provided with circular groove obliquely, the elastic ring that cross section is W shape is embedded with in circular groove, elastic ring has two atriums, also comprise abnormity circle, abnormity circle has joint and sealing surface, abnormity circle is stuck in an atrium of elastic ring by joint, and offset outside sealing surface and spheroid, another atrium of elastic ring is in communication with the outside by seal ring end face side, and arrange closer to seal ring outer side surface, spheroid energy crush seal face makes elastic ring respectively towards seal ring outer side surface and the expansion of seal ring bottom surface.As long as enclose when changing abnormity after sealing surface wear, when fluid flows through spheroid, the sealing between the indirect enhanced leaktightness face of meeting and spheroid.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of ball valve ball seal structure.
Background technique
Valve is accessory very common in daily life and various equipment, control medium by and block.Existing valve is varied, such as: gate valve, throttle valve, ball valve, butterfly valve, membrane valve, plunger valve, stopcock etc.
Because valve needs often to open and close, particularly valve plug in ball valve spheroid needs frequent rotation easily to occur sealing wear, if therefore valve goes wrong and causes fluid to leak, whole pipeline may be needed there is no fluid or medium when overhauling, therefore extremely bother, therefore existing valve sealing structure is improved to being extremely necessary.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of sealing effect better ball valve ball seal structure.
The purpose of this utility model realizes by following technical proposal: a kind of ball valve ball seal structure, comprise spheroid, valve body and seal ring, described valve body is provided with seal groove, described seal ring is placed in seal groove, seal groove notch upwards, it is characterized in that: inside seal ring, position is provided with circular groove obliquely, the elastic ring that cross section is W shape is embedded with in described circular groove, described elastic ring has two atriums, also comprise abnormity circle, described abnormity circle has annular joint and annular sealing surface, described abnormity circle is stuck in an atrium of described elastic ring by joint, and offset outside sealing surface and spheroid, another atrium of elastic ring is in communication with the outside by seal ring end face side, and arrange closer to seal ring outer side surface, sealing surface described in spheroid can extrude makes elastic ring respectively towards seal ring outer side surface and the expansion of seal ring bottom surface.
Owing to offseting outside sealing surface and spheroid, therefore sealing surface plays seal action, spheroid energy crush seal face makes elastic ring respectively towards seal ring outer side surface and the expansion of seal ring bottom surface, when therefore offseting outside sealing surface and spheroid, seal ring outer side surface and seal ring bottom surface can and valve body between play better sealing; Because spheroid needs often to rotate keying, therefore sealing surface is easy to wear, and enclose as long as change abnormity after wearing and tearing, therefore maintenance cost is low, and very quick; In addition when fluid flows through spheroid, segment fluid flow can enter through in the atrium that seal ring end face side is in communication with the outside, and atrium can extrude elastic ring to both sides simultaneously, makes the sealing between indirect enhanced leaktightness face and spheroid.
As preferably, around being distributed with some positioning holes on an atrium of described elastic ring, described joint is provided with the positioning block coordinated with positioning hole, and described positioning block is placed in positioning hole.
Therefore abnormity can be enclosed stable being connected with seal ring.
As preferably, described sealing surface is imploded arcs planar.
Therefore can better fit with spherome surface.
As preferably, described sealing surface have at least two annular protrusions.
As preferably, described seal ring and abnormity circle are polytetrafluoroethylmaterial material and make, and described elastic ring is galvanized steel plain sheet.
Compared with prior art, the utility model tool has the following advantages:
Owing to offseting outside sealing surface and spheroid, therefore sealing surface plays seal action, spheroid energy crush seal face makes elastic ring respectively towards seal ring outer side surface and the expansion of seal ring bottom surface, when therefore offseting outside sealing surface and spheroid, seal ring outer side surface and seal ring bottom surface can and valve body between play better sealing; Because spheroid needs often to rotate keying, therefore sealing surface is easy to wear, and enclose as long as change abnormity after wearing and tearing, therefore maintenance cost is low, and very quick; In addition when fluid flows through spheroid, segment fluid flow can enter through in the atrium that seal ring end face side is in communication with the outside, and atrium can extrude elastic ring to both sides simultaneously, makes the sealing between indirect enhanced leaktightness face and spheroid.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure, arrow is fluid flow direction.
Coding in figure is respectively:
1, spheroid; 2, valve body; 21, seal groove; 3, seal ring; 31, circular groove; 32, elastic ring; 33, atrium; 4, abnormity circle; 41, joint; 42, sealing surface.
Embodiment
As shown in Figure 1, a kind of ball valve ball seal of the utility model structure, comprise spheroid 1, valve body 2 and seal ring 3, valve body 2 is provided with seal groove 21, seal ring 3 is placed in seal groove 21, seal groove 21 notch upwards, inside seal ring 3, position is provided with circular groove 31 obliquely, the elastic ring 32 that cross section is W shape is embedded with in circular groove 31, elastic ring 32 has two atriums 33, also comprise abnormity circle 4, abnormity circle 4 has annular joint 41 and annular sealing surface 42, abnormity circle 4 is stuck in an atrium 33 of elastic ring 32 by joint 41, and offset outside sealing surface 42 and spheroid 1, another atrium 33 of elastic ring 32 is in communication with the outside by seal ring 3 end face side, and arrange closer to seal ring 3 outer side surface, spheroid 1 can make elastic ring 32 respectively towards seal ring 3 outer side surface and the expansion of seal ring 3 bottom surface in crush seal face 42.
Further, around being distributed with some positioning holes on an atrium 33 of elastic ring 32, joint 41 is provided with the positioning block coordinated with positioning hole, and positioning block is placed in positioning hole.Sealing surface 42 is in imploded arcs planar.Sealing surface 42 have at least two annular protrusions.Seal ring 3 and abnormity circle 4 are polytetrafluoroethylmaterial material and make, and elastic ring 32 is galvanized steel plain sheet.
Owing to offseting outside sealing surface 42 and spheroid 1, therefore sealing surface 42 plays seal action, spheroid 1 can make elastic ring 32 respectively towards seal ring 3 outer side surface and the expansion of seal ring 3 bottom surface in crush seal face 42, when therefore offseting outside sealing surface 42 with spheroid 1, seal ring 3 outer side surface and seal ring 3 bottom surface can and valve body 1 between play better sealing; Because spheroid 1 needs often to rotate keying, therefore sealing surface 42 is easy to wear, as long as change abnormity circle 4 after wearing and tearing, therefore maintenance cost is low, and very quick; In addition when fluid flows through spheroid 1, segment fluid flow can enter through in the atrium 33 that seal ring 3 end face side is in communication with the outside, and atrium 33 to both sides extruding elastic ring 32, can make the sealing between indirect enhanced leaktightness face 42 and spheroid 1 simultaneously.
Claims (5)
1. a ball valve ball seal structure, comprise spheroid (1), valve body (2) and seal ring (3), described valve body (2) is provided with seal groove (21), described seal ring (3) is placed in seal groove (21), seal groove (21) notch upwards, it is characterized in that: seal ring (3) inner side is provided with circular groove (31) in position obliquely, the elastic ring (32) that cross section is W shape is embedded with in described circular groove (31), described elastic ring (32) has two atriums (33), also comprise abnormity circle (4), described abnormity circle (4) has annular joint (41) and annular sealing surface (42), described abnormity circle (4) is stuck in an atrium (33) of described elastic ring (32) by joint (41), and sealing surface (42) offsets with spheroid (1) outside, elastic ring (32) another atrium (33) is in communication with the outside by seal ring (3) end face side, and arrange closer to seal ring (3) outer side surface, sealing surface (42) described in spheroid (1) can extrude makes elastic ring (32) respectively towards seal ring (3) outer side surface and the expansion of seal ring (3) bottom surface.
2. ball valve ball seal structure according to claim 1, it is characterized in that: around being distributed with some positioning holes on an atrium (33) of described elastic ring (32), described joint (41) is provided with the positioning block coordinated with positioning hole, and described positioning block is placed in positioning hole.
3. ball valve ball seal structure according to claim 1, is characterized in that: described sealing surface (42) is in imploded arcs planar.
4. ball valve ball seal structure according to claim 1, is characterized in that: described sealing surface (42) has at least two annular protrusions.
5. ball valve ball seal structure according to claim 1, is characterized in that: described seal ring (3) and abnormity circle (4) are polytetrafluoroethylmaterial material and make, and described elastic ring (32) is galvanized steel plain sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520325781.1U CN204692635U (en) | 2015-05-17 | 2015-05-17 | Ball valve ball seal structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520325781.1U CN204692635U (en) | 2015-05-17 | 2015-05-17 | Ball valve ball seal structure |
Publications (1)
Publication Number | Publication Date |
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CN204692635U true CN204692635U (en) | 2015-10-07 |
Family
ID=54232930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201520325781.1U Expired - Fee Related CN204692635U (en) | 2015-05-17 | 2015-05-17 | Ball valve ball seal structure |
Country Status (1)
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CN (1) | CN204692635U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109642674A (en) * | 2016-10-04 | 2019-04-16 | Nok株式会社 | Sealing device and seal assembly |
RU2705172C1 (en) * | 2019-02-15 | 2019-11-06 | Размик Енокович Агабабян | Ball valve |
-
2015
- 2015-05-17 CN CN201520325781.1U patent/CN204692635U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109642674A (en) * | 2016-10-04 | 2019-04-16 | Nok株式会社 | Sealing device and seal assembly |
RU2705172C1 (en) * | 2019-02-15 | 2019-11-06 | Размик Енокович Агабабян | Ball valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: Qingpu 201700 waiqingsong road Shanghai City, No. 5399 Building 2 -2 Patentee after: Shanghai Tao Ning Valve Co. Ltd. Address before: 362499 Anxi County, Phoenix Town, I West Village Road, No. 32 West Patentee before: Huang Liying |
|
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: 20151007 Termination date: 20170517 |