CN102261463B - Long-life rubber diaphragm - Google Patents
Long-life rubber diaphragm Download PDFInfo
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- CN102261463B CN102261463B CN201010185335.7A CN201010185335A CN102261463B CN 102261463 B CN102261463 B CN 102261463B CN 201010185335 A CN201010185335 A CN 201010185335A CN 102261463 B CN102261463 B CN 102261463B
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- rubber plate
- thickness
- screen cloth
- polyamide fibre
- fibre screen
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Abstract
The invention relates to parts of valves. A long-life rubber diaphragm consists of a diaphragm and a diaphragm screw, and is characterized in that: the diaphragm is laminated by nine to thirteen different size and thickness of rubber plates and three to four pieces in different sizes of impregnation nylon mesh cloth according to the shape and dimension of the diaphragm, wherein five to eight different size and thickness of rubber plates and one piece in maximum size of impregnation nylon mesh cloth are positioned below the screw head of the diaphragm screw; and the other different size and thickness of rubber plates and different size of impregnation nylon mesh cloth pass through a screw rod part of the diaphragm, are laminated above the screw head and are vulcanized through mold pressing. The technical problem that the conventional rubber diaphragm has short service life is solved.
Description
Technical field:
The invention relates to the component of valve, particularly about the diaphragm of rubber of membrane valve.
Background technique:
Diaphragm of rubber is the key components and parts of membrane valve, it is connected with stem bottom with the barrier film screw 1 being embedded in boss place in the middle part of diaphragm 2, the edge of diaphragm 2 is clamped between valve gap and valve seat junction surface, and move up and down with valve rod and produce complications as Fig. 1 and Fig. 2 and be out of shape, to open or throttle down.Existing barrier film is formed through molded vulcanization by a monoblock synthetic rubber plate, and its resistance to complications are tired and compressive strength is not high, easily rupture, affect working life.Therefore, the diaphragm of rubber manufactured by monoblock synthetic rubber plate is at present short for working life, and generally at about 4000 ~ 5000 times, this just brings the inconvenience in maintenance to the user of use membrane valve.
Summary of the invention:
The object of the present invention is to provide a kind of long-life rubber diaphragm, solve short technical problem in current diaphragm of rubber working life.
The technological scheme that the present invention solves the problems of the technologies described above is:
A kind of long-life rubber diaphragm, be made up of diaphragm and barrier film screw, it is characterized in that: this diaphragm be by 9 ~ 13 sheet rubbers and 3 ~ 4 impregnations brocade wheel screen cloths superimposed by the shape and size of barrier film, wherein 5 ~ 8 rubber plates and 1 impregnation silk floss wheel screen cloth are positioned at below the ailhead of barrier film screw, all the other rubber plates and impregnation brocade wheel cloth pass through barrier film screw rod portion and are stacked and placed on above ailhead, then through molded vulcanization.
Owing to using, different size is the same with impregnation polyamide fibre screen cloth rubber automobile tire with the sheet rubber of thickness carries out layering by the shape of barrier film by them to long-life rubber diaphragm of the present invention in mould, stacked postcure, not only increase the toughness of diaphragm of rubber, not easy-rupturing, turn improve intensity, barrier film screw can not be drawn out or press and wear, and through checking be greater than 40000 times its resistance to tortuous fatigue life, is the life-span more than 10 times of existing barrier film 4000 times.
Accompanying drawing illustrates:
Fig. 1 is membrane shape sectional view.
Deformation state when Fig. 2 is barrier film closedown.
Fig. 3 ~ Fig. 5 is several collapsed configuration signals of the rubber plate of barrier film of the present invention, impregnation polyamide fibre screen cloth sheet and barrier film screw.
In figure:
---represent that rubber plate------represents impregnation polyamide fibre screen cloth.
Embodiment:
Long-life rubber diaphragm of the present invention is made up of diaphragm and barrier film screw, and this diaphragm is shaped through molded vulcanization after being superposed according to the shape and size of barrier film by nine to ten three different sizes and the rubber plate of thickness and the impregnation polyamide fibre screen cloth of two to four different sizes.Now in the name of valve footpath is that 35a (a is barrier film screw diameter) is for example with the invention will be further described by reference to the accompanying drawings.
Embodiment 1.
The present embodiment is formed through molded vulcanization by barrier film shape with after superposing shape by 13 different sizes (a) and the rubber plate of thickness (δ), the impregnation polyamide fibre screen cloth of four different sizes (a) and barrier film screw.With barrier film screw for boundary, wherein eight rubber plates and a slice impregnation polyamide fibre screen cloth are positioned at below barrier film screw head, and five rubber plates and three impregnation polyamide fibre screen cloths are positioned at above barrier film screw ailhead.Fig. 3 is the signal of this rubber plate, impregnation polyamide fibre screen cloth and barrier film screw superposition:
1. put into the rubber plate that five overall dimensions (35a) thickness are (1 δ) first in a mold;
2. rubber plate a slice that time small size (9 ~ 12a) thickness is (1.6 δ) is stacked in the center portion of above-mentioned five rubber plates;
3. described in above-mentioned 1 ~ 2, superpose the rubber plate that the impregnation polyamide fibre screen cloth superposing a slice overall dimensions (35a) above thing successively and a slice overall dimensions (35a) thickness are (1 δ);
4. on 1 ~ 3 superposition thing, center portion superposes the rubber plate that a slice time small size (9 ~ 12a) thickness is (1.6 δ);
5. superposing center portion placement barrier film screw on thing described in 4, this barrier film screw ailhead down;
6. successively center had the impregnation polyamide fibre screen cloth of the minimum dimension (6 ~ 8a) that diameter is the through hole of a, the rubber plate of secondary small size (9 ~ 12a) thickness (1.6 δ), the impregnation polyamide fibre screen cloth of secondary small size (9 ~ 12a), intermediate sizes (15 ~ 18a) thickness is the rubber plate of (1 δ), the impregnation polyamide fibre screen cloth of secondary large scale (20 ~ 23a), minimum dimension (6 ~ 8a) thickness is the rubber plate of (2.4 δ), each a slice of rubber plate that secondary large scale (20 ~ 23a) and overall dimensions (35a) thickness are (1 δ) is superimposed on the superposition thing described in ailhead and 1 ~ 4 through the nail bar of barrier film screw.
Embodiment 2.
The long-lived barrier film of the present embodiment is the rubber plate by nine different sizes (a) and thickness (δ), and three impregnation polyamide fibre screen cloths and barrier film screw are by the barrier film through molded vulcanization after membrane shape and size superposition.Wherein six rubber plates and a slice impregnation polyamide fibre screen cloth are positioned at below barrier film screw.
Fig. 4 is the signal of the rubber plate of this barrier film, impregnation polyamide fibre screen cloth and barrier film screw superposition:
1. first put at mold bottom the rubber plate that three overall dimensions (35a) thickness are (1 δ);
2. rubber plate a slice of time small size (9 ~ 12a) thickness (1.6 δ) is stacked in the center portion of above-mentioned three rubber plates;
3. described in above-mentioned 1 ~ 2, to superpose above thing the rubber plate that the impregnation polyamide fibre screen cloth that upwards superposes a slice overall dimensions (35a) successively and a slice overall dimensions (35a) thickness are (1 δ);
4. on the superposition thing described in 3, center portion superposes a slice time small size (9 ~ 12a), and thickness is the rubber plate of (1.8 δ);
5. barrier film screw is placed in the center portion superposing thing described in 4, and the nail bar of this barrier film screw upward;
6. successively center is had aperture is a, the impregnation polyamide fibre screen cloth of minimum dimension (6 ~ 8a), secondary small size (9 ~ 12a) thickness are (2.4 δ) rubber plate, intermediate sizes (15 ~ 18a) thickness is the rubber plate of (1.6 δ), nail bar that each a slice of rubber plate that the impregnation polyamide fibre screen cloth of secondary large scale (20 ~ 23a), maximum cun of (35a) thickness be (1 δ) passes barrier film screw is superimposed on the superposition thing described in ailhead and 1 ~ 4.
Embodiment 3
The long-lived barrier film of the present embodiment is carried out superposing making through sulfuration in mould by membrane shape and size by the different sizes of ten a slices and the rubber plate of thickness, three impregnation polyamide fibre screen cloths and barrier film screw, and wherein the rubber plate of five different boundary dimension and thickness and a slice impregnation polyamide fibre screen cloth are positioned at below barrier film screw.Consult shown in Fig. 5, the shape and size superposition that barrier film pressed by the rubber plate of this barrier film, impregnation polyamide fibre screen cloth and barrier film screw is as follows:
1. first put at mold bottom the rubber plate that four overall dimensions (35a) thickness are (1 δ);
2. the center portion of the superposition thing described in above-mentioned 1 stacks rubber plate a slice that time small size (9 ~ 12a) thickness is (1.7 δ);
3. described in above-mentioned 1 ~ 2, to superpose above thing the sheet rubber that the impregnation polyamide fibre screen cloth and a slice overall dimensions (3a) that upwards superpose a slice overall dimensions (35a) successively and thickness are (1 δ);
4. on the superposition thing described in 3, superpose the rubber plate that a slice time small size (9 ~ 12a) thickness is (1.7 δ);
5. barrier film screw is placed in the center portion superposing thing described in 4, and the nail bar of this barrier film screw upward;
6. successively center had the impregnation polyamide fibre screen cloth that diameter is the secondary small size (9 ~ 12a) of the through hole of a, intermediate sizes (15 ~ 18a) thickness is the rubber plate of (1 δ), the impregnation polyamide fibre screen cloth of secondary large scale (20 ~ 23a), minimum dimension (6 ~ 8a) thickness is the rubber plate of (2.4 δ), secondary large scale (20 ~ 23a) thickness is the rubber plate of (1.6 δ), each a slice of rubber plate that overall dimensions (35a) thickness is (1 δ) is superimposed on the superposition thing described in ailhead and 1 ~ 4 through the nail bar of barrier film screw.
Claims (1)
1. a long-life rubber diaphragm, be made up of diaphragm and barrier film screw, it is characterized in that: this diaphragm is superimposed by the shape and size of barrier film by the impregnation polyamide fibre screen cloth of the rubber plate size different from three to four of nine to ten three different sizes and thickness, wherein the rubber plate of five to eight different sizes and thickness and a slice maximum sized impregnation polyamide fibre screen cloth are positioned at below the ailhead of barrier film screw, the rubber plate of all the other different sizes and thickness and the impregnation polyamide fibre screen cloth of different size pass through barrier film screw rod portion and are stacked and placed on above ailhead, then through molded vulcanization;
Described rubber plate and the superimposed concrete steps of impregnation polyamide fibre screen cloth as follows:
1) rubber plate that five overall dimensions 35a thickness are 1 δ is put into first in a mold;
2) rubber plate a slice that time small size 9 ~ 12a thickness is 1.6 δ is stacked in the center portion of above-mentioned five rubber plates;
3) in step 2) in superpose the rubber plate that the impregnation polyamide fibre screen cloth of a slice overall dimensions 35a and a slice overall dimensions 35a thickness are 1 δ above the rubber plate that obtains and impregnation polyamide fibre screen cloth successively;
4) in step 3) in the rubber plate that obtains and impregnation polyamide fibre screen cloth center portion on superpose the rubber plate that a slice time small size 9 ~ 12a thickness is 1.6 δ;
5) in step 4) in the rubber plate that obtains and impregnation polyamide fibre screen cloth center portion on place barrier film screw, this barrier film screw ailhead is down;
6) successively center had the impregnation polyamide fibre screen cloth that diameter is the minimum dimension 6 ~ 8a of the through hole of a, the rubber plate of secondary small size 9 ~ 12a thickness 1.6 δ, the impregnation polyamide fibre screen cloth of secondary small size 9 ~ 12a, intermediate sizes 15 ~ 18a thickness is the rubber plate of 1 δ, the impregnation polyamide fibre screen cloth of secondary large scale 20 ~ 23a, minimum dimension 6 ~ 8a thickness is the rubber plate of 2.4 δ, secondary large scale 20 ~ 23a and overall dimensions 35a thickness are that each a slice of rubber plate of 1 δ is superimposed on ailhead and step 4 through the nail bar of barrier film screw) on the rubber plate that obtains and impregnation polyamide fibre screen cloth,
Or described rubber plate and the superimposed concrete steps of impregnation polyamide fibre screen cloth as follows:
1) first put at mold bottom the rubber plate that three overall dimensions 35a thickness are 1 δ;
2) rubber plate a slice of time small size 9 ~ 12a thickness 1.6 δ is stacked in the center portion of above-mentioned three rubber plates;
3) in step 2) in upwards superpose the rubber plate that the impregnation polyamide fibre screen cloth of a slice overall dimensions 35a and a slice overall dimensions 35a thickness are 1 δ above the rubber plate that obtains and impregnation polyamide fibre screen cloth successively;
4) in step 3) in the rubber plate that obtains and impregnation polyamide fibre screen cloth center portion on superpose a slice time small size 9 ~ 12a, thickness is the rubber plate of 1.8 δ;
5) in step 4) in the center portion of the rubber plate that obtains and impregnation polyamide fibre screen cloth place barrier film screw, the nail bar of this barrier film screw is upward;
6) successively center is had the impregnation polyamide fibre screen cloth that diameter is the minimum dimension 6 ~ 8a of the through hole of a, each a slice of rubber plate that rubber plate that rubber plate that secondary small size 9 ~ 12a thickness is 2.4 δ, intermediate sizes 15 ~ 18a thickness are 1.6 δ, the impregnation polyamide fibre screen cloth of secondary large scale 20 ~ 23a, overall dimensions 35a thickness are 1 δ is superimposed on ailhead and step 4 through the nail bar of barrier film screw) on the rubber plate that obtains and impregnation polyamide fibre screen cloth;
Or described rubber plate and the superimposed concrete steps of impregnation polyamide fibre screen cloth as follows:
1) first put at mold bottom the rubber plate that four overall dimensions 35a thickness are 1 δ;
2) in step 1) in the center portion of the rubber plate that obtains and impregnation polyamide fibre screen cloth stack rubber plate a slice that time small size 9 ~ 12a thickness is 1.7 δ;
3) in step 2) in the top of the rubber plate that obtains and impregnation polyamide fibre screen cloth upwards superpose the sheet rubber that the impregnation polyamide fibre screen cloth of a slice overall dimensions 35a and a slice overall dimensions 3a and thickness are 1 δ successively;
4) in step 3) in the rubber plate that obtains and impregnation polyamide fibre screen cloth superpose the rubber plate that a slice time small size 9 ~ 12a thickness is 1.7 δ;
5) in step 4) in the center portion of the rubber plate that obtains and impregnation polyamide fibre screen cloth place barrier film screw, the nail bar of this barrier film screw is upward;
6) successively center had the impregnation polyamide fibre screen cloth that diameter is the secondary small size 9 ~ 12a of the through hole of a, intermediate sizes 15 ~ 18a thickness is the rubber plate of 1 δ, the impregnation polyamide fibre screen cloth of secondary large scale 20 ~ 23a, minimum dimension 6 ~ 8a thickness is the rubber plate of 2.4 δ, secondary large scale 20 ~ 23a thickness is the rubber plate of 1.6 δ, overall dimensions 35a thickness is that each a slice of rubber plate of 1 δ is superimposed on ailhead and step 4 through the nail bar of barrier film screw) on the rubber plate that obtains and impregnation polyamide fibre screen cloth,
In above steps, a is barrier film screw diameter, and δ is unit thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010185335.7A CN102261463B (en) | 2010-05-26 | 2010-05-26 | Long-life rubber diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010185335.7A CN102261463B (en) | 2010-05-26 | 2010-05-26 | Long-life rubber diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102261463A CN102261463A (en) | 2011-11-30 |
| CN102261463B true CN102261463B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010185335.7A Active CN102261463B (en) | 2010-05-26 | 2010-05-26 | Long-life rubber diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261463B (en) |
Citations (6)
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|---|---|---|---|---|
| CN2299737Y (en) * | 1997-06-04 | 1998-12-09 | 蓝春福 | Structure-improved safety tyre for automotive vehicle |
| JP2003130219A (en) * | 2001-10-29 | 2003-05-08 | Fujikura Rubber Ltd | Manufacturing method for diaphragm |
| CN1634702A (en) * | 2003-12-26 | 2005-07-06 | 上海华向橡胶制品有限公司 | Method for manufacturing rubber diaphragm for diaphragm pump |
| CN2848970Y (en) * | 2005-06-17 | 2006-12-20 | 上海澳柯林水暖器材有限公司 | Multilayer composite diaphram piston type valve core structure of flushing valve |
| JP4165163B2 (en) * | 2001-12-27 | 2008-10-15 | 東洋紡績株式会社 | Continuous production method of polyamide resin composition |
| JP4296253B2 (en) * | 2000-12-11 | 2009-07-15 | 英喜 及川 | Mounting brackets for ceiling edges, etc. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04165163A (en) * | 1990-10-30 | 1992-06-10 | Toyo Tire & Rubber Co Ltd | Diapharagm valve |
| JP2538433B2 (en) * | 1991-03-22 | 1996-09-25 | 東海ゴム工業株式会社 | Diaphragm manufacturing method |
| JPH0868401A (en) * | 1994-05-23 | 1996-03-12 | Nok Corp | Manufacture of bladder for accumulator |
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2010
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299737Y (en) * | 1997-06-04 | 1998-12-09 | 蓝春福 | Structure-improved safety tyre for automotive vehicle |
| JP4296253B2 (en) * | 2000-12-11 | 2009-07-15 | 英喜 及川 | Mounting brackets for ceiling edges, etc. |
| JP2003130219A (en) * | 2001-10-29 | 2003-05-08 | Fujikura Rubber Ltd | Manufacturing method for diaphragm |
| JP4165163B2 (en) * | 2001-12-27 | 2008-10-15 | 東洋紡績株式会社 | Continuous production method of polyamide resin composition |
| CN1634702A (en) * | 2003-12-26 | 2005-07-06 | 上海华向橡胶制品有限公司 | Method for manufacturing rubber diaphragm for diaphragm pump |
| CN2848970Y (en) * | 2005-06-17 | 2006-12-20 | 上海澳柯林水暖器材有限公司 | Multilayer composite diaphram piston type valve core structure of flushing valve |
Non-Patent Citations (4)
| Title |
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| 国内外汽车制动气室橡胶隔膜的比较;姬锦雯;《橡胶工业》;19950410(第04期);220-223 * |
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| CN102261463A (en) | 2011-11-30 |
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Address after: 201823 Shanghai Bao Qian Road, Lane 5888, Lane 8, No. Patentee after: Shanghai nuclear valve Limited by Share Ltd Address before: 201823 Shanghai Bao Qian Road, Lane 5888, Lane 8, No. Patentee before: Shanghai EHO Valve Manufacturing Co.,Ltd. |
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