CN102537384B - The nonmetal base body valve core of interior pressure rubber sealing block - Google Patents
The nonmetal base body valve core of interior pressure rubber sealing block Download PDFInfo
- Publication number
- CN102537384B CN102537384B CN201010596599.1A CN201010596599A CN102537384B CN 102537384 B CN102537384 B CN 102537384B CN 201010596599 A CN201010596599 A CN 201010596599A CN 102537384 B CN102537384 B CN 102537384B
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- CN
- China
- Prior art keywords
- matrix
- sealing block
- barb
- snap ring
- valve core
- 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
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Abstract
The present invention relates to the nonmetal base body valve core of interior pressure rubber sealing block, comprise matrix and sealing block, matrix is the nonmetal cylinder of band through hole, and an end of through hole is provided with interior snap ring; The excircle side axial of matrix is provided with the semi-cylindrical guide surface of multiple projection; Sealing block is rubber material, comprises cylindrical seal platform, truncated cone barb, is arranged on inner card cage between sealing station and barb; The internal diameter of interior snap ring is equal with the external diameter of inner card cage; The internal diameter of interior snap ring, slightly larger than the small end external diameter of barb, is slightly less than the large end external diameter of barb.Matrix distortion when the invention solves existing spool mold pressing, matrix guide surface rubber residual effect product performance, manufacturing procedure is many, cost is higher technical problem.The present invention has guidance quality and high conformity, and simply, manufacturing is easy for installation for stable and reliable operation, structure.
Description
Technical field
The present invention relates to a kind of valve core structure, particularly relate to the valve core structure of pressing rubber sealing block in nonmetal basal body.
Background technique
Existing preliminary election valve core is made up of two-part: copper spool matrix and nitrile butadiene rubber sealing block.First processing metal matrix, after matrix machines, loads in mould, molded rubber, makes rubber be pressed in space reserved in matrix, forms spool.
There is following problem in existing preliminary election valve core:
1, nitrile butadiene rubber is in sulfidation, and compression shock makes matrix be out of shape, and causes guiding circle not lead.
2, after nitrile butadiene rubber sulfuration, a small amount of rubber is always had to be attached on the guiding circle of matrix; The rubber of matrix guide surface remnants causes matrix not lead.
3, after nitrile butadiene rubber sulfuration, central concave, need grind off a part of matrix, ensures that sealing surface is smooth, due to Grinding Error, causes spool axial dimension to shorten, and the spring force paying spring contacted with it reduces, and affects product performance; And during assembling spool, and sealing surface sand paper round to the guiding of spool carries out grinding always, affects efficiency of assembling.
4, process spool operation more, the cycle is longer, affects manufacturing schedule; The cost of metal matrix material is higher.
Summary of the invention
The object of the invention is to provide a kind of nonmetal base body valve core of interior pressure rubber sealing block, matrix distortion during to solve existing spool mold pressing, matrix guide surface rubber residual effect product performance, manufacturing procedure is many, cost is higher technical problem.
Technical solution of the present invention is:
A nonmetal base body valve core for interior pressure rubber sealing block, comprise matrix 1 and sealing block 2, its special way is: described matrix 1 is the nonmetal cylinder of band through hole 12, and an end of described through hole 12 is provided with interior snap ring 12; The excircle side axial of described matrix 1 is provided with the semi-cylindrical guide surface 13 of multiple projection;
Described sealing block 2 is rubber material, and it comprises cylindrical seal platform 23, truncated cone barb 21, is arranged on inner card cage 22 between sealing station 23 and barb 21;
The internal diameter of described interior snap ring 12 is equal with the external diameter of inner card cage 22; The internal diameter of described interior snap ring 12, slightly larger than the small end external diameter of barb 21, is slightly less than the large end external diameter of barb 21.
The end face of above-mentioned through hole 12 is provided with chamfering 14.
The quantity of above-mentioned guide surface is 6, and circumference uniform distribution is in the excircle side of matrix 1.
Technique effect of the present invention is:
1, guidance quality and high conformity, stable and reliable operation.The method of the present invention's mold pressing ensures the conformity of spool, and the guide surface degree of finish of spool is higher, thus ensure that guidance quality.And then also ensure that the normal work of seal valve.
2, structure is simple, and manufacturing is easy for installation.The present invention only needs two molds, and mold pressing injection is simple, avoids the manufacturing procedure that preselector valve former spool blast, sulfuration etc. are more difficult; Compared with the former spool of assembling, need not to pick spool, grinding, avoid the assembling that causes because of former spool quality repeatedly, improve efficiency of assembling; Spool matrix and the equal compression molding of sealing block, the cycle is shorter, can meet manufacturing schedule completely; Only need seal ring good for mold pressing be screwed in matrix during installation, easy for installation.
3, cost is lower.Compare with metallic matrix, cost savings about 65%.
4, the guide surface of matrix increases to six by the four sides of existing spool, is more conducive to guiding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of matrix;
Fig. 3 is the structural representation of sealing block;
Fig. 4 is the right elevation of Fig. 1;
Reference character is as follows: 1-matrix, snap ring in 11-, 12-through hole, 13-guide surface, 14-chamfering, 2-sealing block, 21-barb, 22-inner card cage, 23-sealing station, 3-valve body.
Embodiment
In the present invention, the nonmetal base body valve core of pressure rubber sealing block, comprises matrix 1 and sealing block 2.Matrix 1 is the cylinder of band through hole 12, and an end of through hole 12 is provided with interior snap ring 12, and the end face of through hole 12 is provided with chamfering 14; Cylinder material is injection-moulding plastic, and the excircle side axial of matrix 1 is evenly equipped with 6 protruding semi-cylindrical guide surfaces 13; Sealing block 2 is nitrile butadiene rubber compression molding, and it comprises cylindrical seal platform 23, truncated cone barb 21, is arranged on inner card cage 22 between sealing station and barb; The internal diameter of interior snap ring 12 is equal with the external diameter of inner card cage 22; The internal diameter of interior snap ring 11, slightly larger than the small end external diameter of barb 21, is slightly less than the large end external diameter of barb 21.Overhead structure embeds also fixing in matrix 1 and can not come off, and forms spool.The stability of guarantee work.
In actual environment as the case may be, the present invention can be positioned over and need on the valve of seal spool, as preselector valve; Also the present invention can be placed on need sealing all pores between.
Claims (3)
1. press a nonmetal base body valve core for rubber sealing block in, comprise matrix and sealing block, it is characterized in that: described matrix is the nonmetal cylinder of band through hole, and an end of described through hole is provided with interior snap ring; The excircle side axial of described matrix is provided with the semi-cylindrical guide surface of multiple projection;
Described sealing block is rubber material, and it comprises cylindrical seal platform, truncated cone barb, is arranged on inner card cage between sealing station and barb;
The internal diameter of described interior snap ring is equal with the external diameter of inner card cage; The internal diameter of described interior snap ring, slightly larger than the small end external diameter of barb, is slightly less than the large end external diameter of barb;
The Outside diameter of described truncated cone barb is less than the diameter of cylindrical seal platform, and described truncated cone barb is pressed in matrix by the mode of interior pressure, and matrix and sealing block coaxial.
2. the nonmetal base body valve core of interior pressure rubber sealing block according to claim 1, is characterized in that: the end face of described through hole is provided with chamfering.
3. the nonmetal base body valve core of interior pressure rubber sealing block according to claim 1 and 2, is characterized in that: the quantity of described guide surface is 6, and circumference uniform distribution is in the excircle side of matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596599.1A CN102537384B (en) | 2010-12-20 | 2010-12-20 | The nonmetal base body valve core of interior pressure rubber sealing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596599.1A CN102537384B (en) | 2010-12-20 | 2010-12-20 | The nonmetal base body valve core of interior pressure rubber sealing block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537384A CN102537384A (en) | 2012-07-04 |
| CN102537384B true CN102537384B (en) | 2015-07-29 |
Family
ID=46345023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010596599.1A Expired - Fee Related CN102537384B (en) | 2010-12-20 | 2010-12-20 | The nonmetal base body valve core of interior pressure rubber sealing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324919A (en) * | 2020-11-26 | 2021-02-05 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008992A (en) * | 1973-11-20 | 1977-02-22 | Societe Anonyme Dite Etablissement Genoud & Cie. | Valve system, particularly for cigarette lighter |
| CN201487296U (en) * | 2009-09-11 | 2010-05-26 | 重庆卡福汽车制动转向系统有限公司 | Automobile gearbox pneumatically-controlled reversing valve |
| CN101881339A (en) * | 2010-06-09 | 2010-11-10 | 陶仕利 | Valve |
| CN201964018U (en) * | 2010-12-20 | 2011-09-07 | 西安航天远征流体控制股份有限公司 | Nonmetal base body valve core of internal pressure rubber sealing block |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008116024A (en) * | 2006-11-08 | 2008-05-22 | Toyota Motor Corp | Exhaust and drain valve for fuel cell |
-
2010
- 2010-12-20 CN CN201010596599.1A patent/CN102537384B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008992A (en) * | 1973-11-20 | 1977-02-22 | Societe Anonyme Dite Etablissement Genoud & Cie. | Valve system, particularly for cigarette lighter |
| CN201487296U (en) * | 2009-09-11 | 2010-05-26 | 重庆卡福汽车制动转向系统有限公司 | Automobile gearbox pneumatically-controlled reversing valve |
| CN101881339A (en) * | 2010-06-09 | 2010-11-10 | 陶仕利 | Valve |
| CN201964018U (en) * | 2010-12-20 | 2011-09-07 | 西安航天远征流体控制股份有限公司 | Nonmetal base body valve core of internal pressure rubber sealing block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537384A (en) | 2012-07-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150729 Termination date: 20171220 |