CN102537384A - Nonmetallic matrix valve core with internally pressed rubber sealing block - Google Patents
Nonmetallic matrix valve core with internally pressed rubber sealing block Download PDFInfo
- Publication number
- CN102537384A CN102537384A CN2010105965991A CN201010596599A CN102537384A CN 102537384 A CN102537384 A CN 102537384A CN 2010105965991 A CN2010105965991 A CN 2010105965991A CN 201010596599 A CN201010596599 A CN 201010596599A CN 102537384 A CN102537384 A CN 102537384A
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- China
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- valve core
- barb
- matrix
- sealing block
- base body
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Abstract
The invention relates to a nonmetallic matrix valve core with an internally pressed rubber sealing block. The valve core comprises a base body and a sealing block, wherein the base body is a nonmetallic cylinder with a through hole, and one end of the through hole is provided with an inner clamping ring; the peripheral lateral surface of the base body is provided with a plurality of raised semi-cylindrical guiding surfaces in an axial direction; the sealing block is made of rubber material, and comprises a cylindrical sealing table, a cone frustum barb and an inner clamping groove formed between the sealing table and the barb; the inside diameter of the inner clamping ring is equal to the outside diameter of the inner clamping groove; and the inside diameter of the inner clamping ring is slightly greater than the outside diameter of the small end of the barb and slightly smaller than the outside diameter of the big end of the barb. The valve core solves the problems that the base body is deformed when the conventional valve core is subjected to die pressing, the rubber residue on the guiding surfaces of the base body affects the performance of a product and the conventional valve core has many machining procedures and is high in cost. The valve core has the advantages of good guiding property and consistency, stability and reliability in operation and simple structure, and is convenient to manufacture and install.
Description
Technical field
The present invention relates to a kind of valve core structure, relate in particular to the valve core structure of in nonmetal basal body, pressing the rubber seal piece.
Background technique
Existing preliminary election valve core is made up of two-part: copper spool matrix and nitrile butadiene rubber sealing block.Elder generation's processing metal matrix, after matrix machined, in the mould of packing into, molded rubber was pressed in the space of reserving in the matrix rubber, forms spool.
There is following problem in existing preliminary election valve core:
1, nitrile butadiene rubber is in sulfidation, and compression shock makes the matrix distortion, causes the guiding circle not lead.
2, after the nitrile butadiene rubber sulfuration, always have on the guiding circle of a spot of rubber attached to matrix; The remaining rubber of matrix guide surface causes matrix not lead.
3, after the nitrile butadiene rubber sulfuration, central concave need grind off a part of matrix, guarantees that sealing surface is smooth, because Grinding Error causes the spool axial dimension to shorten, the spring force of paying spring of contact reduces with it, influences product performance; And assembling is during spool, and guiding circle and the sealing surface to spool carries out grinding with sand paper always, influences efficiency of assembling.
4, processing spool operation is more, and the cycle is longer, influences manufacturing schedule; The cost of metal matrix material is higher.
Summary of the invention
The object of the invention provides a kind of interior nonmetal basal body spool of pressing the rubber seal piece, matrix distortion, matrix guide surface rubber remaining influence product performance, many, the cost technical problems of high of manufacturing procedure when having the spool mold pressing now to solve.
Technical solution of the present invention is:
Press the nonmetal basal body spool of rubber seal piece in a kind of, comprise matrix 1 and sealing block 2, its special way is: said matrix 1 is the nonmetal cylinder of band through hole 12, and an end of said through hole 12 is provided with interior snap ring 12; The excircle side axial of said matrix 1 is provided with the semi-cylindrical guide surface 13 of a plurality of convexities;
Said sealing block 2 is a rubber material, and it comprises cylindrical seal platform 23, truncated cone barb 21, is arranged on the inner card cage 22 between sealing platform 23 and the barb 21;
The internal diameter of snap ring 12 equates with the external diameter of inner card cage 22 in said; The internal diameter of snap ring 12 is slightly larger than the small end external diameter of barb 21 in said, is slightly less than the big 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 present invention is with the conformity of the method assurance spool of mold pressing, and the guide surface degree of finish of spool is higher, thereby has guaranteed guidance quality.And then also guaranteed the proper functioning of seal valve.
2, simple in structure, manufacturing is easy for installation.The present invention only needs two molds to get final product, and the mold pressing injection is simple, has avoided difficult manufacturing procedure such as the former spool blast of preselector valve, sulfuration; Compare with the former spool of assembling, need not pick spool, grinding, the assembling of having avoided causing because of former spool quality has improved efficiency of assembling repeatedly; The equal compression molding of spool matrix and sealing block, the cycle is shorter, can satisfy manufacturing schedule fully; Only need the seal ring that mold pressing is good to screw in the matrix during installation and get final product, easy for installation.
3, cost is lower.Compare cost savings about 65% with metallic matrix.
4, the guide surface of matrix increases to six by the four sides of existing spool, more helps guiding.
Description of drawings
Fig. 1 is a 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 following: snap ring in the 1-matrix, 11-, and the 12-through hole, the 13-guide surface, the 14-chamfering, the 2-sealing block, the 21-barb, the 22-inner card cage, 23-seals platform, 3-valve body.
Embodiment
Press the nonmetal basal body spool of rubber seal piece in the present invention, comprise 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; The cylinder material is an injection-moulding plastic, and the excircle side axial of matrix 1 is evenly equipped with the semi-cylindrical guide surface 13 of 6 convexities; Sealing block 2 is the nitrile butadiene rubber compression molding, and it comprises cylindrical seal platform 23, truncated cone barb 21, is arranged on the inner card cage 22 between sealing platform and the barb; The internal diameter of interior snap ring 12 equates with the external diameter of inner card cage 22; The internal diameter of interior snap ring 12 is slightly larger than the small end external diameter of barb 21, is slightly less than the big end external diameter of barb 21.Overhead structure embeds in the matrix 1 and is fixing and can not come off, and forms spool.The stability of assurance work.
In actual environment, as the case may be, can the present invention be positioned on the valve that needs seal spool, like preselector valve; Also can the present invention be placed between all pores that need sealing.
Claims (3)
1. press the nonmetal basal body spool of rubber seal piece in one kind, comprise matrix and sealing block, it is characterized in that: said matrix is the nonmetal cylinder of band through hole, and an end of said through hole is provided with interior snap ring; The excircle side axial of said matrix is provided with the semi-cylindrical guide surface of a plurality of convexities;
Said sealing block is a rubber material, and it comprises cylindrical seal platform, truncated cone barb, is arranged on the inner card cage between sealing platform and the barb;
The internal diameter of snap ring equates with the external diameter of inner card cage in said; The internal diameter of snap ring is slightly larger than the small end external diameter of barb in said, is slightly less than the big end external diameter of barb.
2. press the nonmetal basal body spool of rubber seal piece in according to claim 1, it is characterized in that: the end face of said through hole is provided with chamfering.
3. press the nonmetal basal body spool of rubber seal piece in according to claim 1 and 2, it is characterized in that: the quantity of said 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 true CN102537384A (en) | 2012-07-04 |
| CN102537384B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111252A1 (en) * | 2020-11-26 | 2022-06-02 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
Citations (5)
| 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 |
| JP2008116024A (en) * | 2006-11-08 | 2008-05-22 | Toyota Motor Corp | Exhaust and drain valve for fuel cell |
| 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 |
-
2010
- 2010-12-20 CN CN201010596599.1A patent/CN102537384B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JP2008116024A (en) * | 2006-11-08 | 2008-05-22 | Toyota Motor Corp | Exhaust and drain valve for fuel cell |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111252A1 (en) * | 2020-11-26 | 2022-06-02 | 江门市伊科迈特电子科技有限公司 | Composite sealing gas valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537384B (en) | 2015-07-29 |
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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 |