CN201748031U - Diaphragm-type sealing device of reciprocating-type valve rod - Google Patents
Diaphragm-type sealing device of reciprocating-type valve rod Download PDFInfo
- Publication number
- CN201748031U CN201748031U CN2010202191481U CN201020219148U CN201748031U CN 201748031 U CN201748031 U CN 201748031U CN 2010202191481 U CN2010202191481 U CN 2010202191481U CN 201020219148 U CN201020219148 U CN 201020219148U CN 201748031 U CN201748031 U CN 201748031U
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- valve rod
- diaphragm
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- hole
- pylon
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Abstract
The utility model relates to a diaphragm-type sealing device of a reciprocating-type valve rod, which comprises a valve seat, a valve body and a cylinder support, wherein the valve seat is arranged at the bottom end of the valve body; the other end of the valve body is fixedly connected with the cylinder support; the top end of the valve seat is provided with a lower valve rod; the top end of the lower valve rod is provided with a lower double-screw bolt; an upper valve rod is arranged in the cylinder support; the top end of the upper valve rod is provided with an upper screw cavity; a jagged sealing diaphragm is arranged between the lower valve rod and the upper valve rod; a diaphragm centre pressing block is arranged between the sealing diaphragm and the upper valve rod; the lower surface of the diaphragm centre pressing block is in sliding fit with the inner surface a diaphragm sunken part; a T-shaped hole is arranged in the diaphragm centre pressing block; the T-shaped hole comprises a top hole and a lower hole which are vertical with each other; the top hole and the upper valve rod are in the sliding fit; and the lower hole is in the sliding fit with an upper pillar table. The utility model not only has good sealing effect but also has friction resistance, acid and base resistance, high temperature resistance and higher safety.
Description
Technical field
The utility model relates to a kind of valve rod sealing device, relates in particular to a kind of diaphragm type seal arrangement of reciprocating type valve rod, specifically is applicable to the sealing of the reciprocating type valve rod of health level.
Background technique
At present, the reciprocating type valve rod of health level generally is applicable to the liquid flow valve of aseptic requirement, and this kind valve not only requires good sealing effect, and requires the valve channel in the valve short as far as possible, straight, the realization that influences aseptic requirement to prevent to produce bacterium.
The Chinese patent notice of authorization number is CN2675979Y, notice of authorization day is that the utility model patent on February 2nd, 2005 discloses the aseptic valve of a kind of highi degree of accuracy, comprise support, actuating motor is rack-mount, be provided with valve body in the support, the valve body bottom is provided with diaphragm, and manage a side and be provided with opening being positioned at material on the bracket, described opening is provided with diaphragm, described diaphragm is connected with valve rod one end, the other end of described valve rod contacts with an end of high-precision screw, and described high-precision screw is provided with guide rod, and the outer end of described guide rod is provided with position transducer.Though this model utility can keep the constant and reasonable distribution of fluid flow, can play the effect that ends of general valve again, its sealing effect is relatively poor, and can not effectively protect seal membrane, thereby further influences sealing effect.
The model utility content
The purpose of this utility model is to overcome defective and the problem that the sealing effect that exists in the prior art is relatively poor, can not effectively protect seal membrane, and the diaphragm type seal arrangement that a kind of sealing effect is better, can effectively protect the reciprocating type valve rod of seal membrane is provided.
For realizing above purpose, technical solution of the present utility model is: a kind of diaphragm type seal arrangement of reciprocating type valve rod, comprise valve seat, valve body and cylinder support, described valve seat is arranged on the bottom of valve body, the other end of valve body is fixedlyed connected with the cylinder support, the top of described valve seat is provided with lower valve rod, and the inside of described cylinder support is provided with upper valve rod, is provided with seal membrane between lower valve rod and the upper valve rod.
Described seal membrane comprises diaphragm upper side edge and diaphragm lower dent, evenly is provided with laciniation between diaphragm upper side edge and the diaphragm lower dent, and to face the fleam that forms between the sawtooth on the laciniation mutually be acute angle.
The center position of described seal membrane is provided with mounting hole, runs through in the mounting hole to be provided with pylon, and the upper end of last pylon is provided with down double-screw bolt, fixedlys connected with the top of lower valve rod in the lower end of last pylon; The top of described upper valve rod is provided with the spiral shell chamber, last spiral shell chamber and the corresponding setting of following double-screw bolt.
Be provided with diaphragm center briquetting between described seal membrane and the upper valve rod, the lower surface of diaphragm center briquetting and the internal surface of diaphragm lower dent are slidingly matched, the inside of diaphragm center briquetting is provided with T type hole, T type hole comprises orthogonal top-portion apertures and lower hole, top-portion apertures and upper valve rod are slidingly matched, and lower hole and last pylon are slidingly matched.
Described last pylon is fixedlyed connected with the top of lower valve rod by following pylon.
The manufactured materials of described seal membrane is that PTFE teflon or its are material modified, and its outer surface is provided with the concavo-convex of water wave shape.
The size of described fleam is 10 degree-80 degree.
The size of described fleam is 45 degree.
Compared with prior art, the beneficial effects of the utility model are:
1. because the lower valve rod in the diaphragm type seal arrangement of a kind of reciprocating type valve rod of the utility model is respectively arranged with mutual corresponding following double-screw bolt and last spiral shell chamber with upper valve rod, and between lower valve rod and upper valve rod, be provided with jagged seal membrane, the manufactured materials of sealing diaphragm is that PTFE teflon or its are material modified, and its profile is a laciniation, good sealing effect not only, wear-resisting wiping, acid resistant alkali, high temperature resistant, and extensibility is good, wear-resistant, can not reduce the material quality of seal membrane owing to service time is long, thereby can not cause sealing effect to descend, and then extend working time.Therefore sealing effect of the present utility model is better, durability is higher.
2. because the diaphragm type seal arrangement of a kind of reciprocating type valve rod of the utility model is provided with diaphragm center briquetting between jagged seal membrane and upper valve rod, and briquetting inner top-portion apertures and the upper valve rod that is provided with in diaphragm center is slidingly matched, lower hole and last pylon are slidingly matched, and this kind structural design can prevent effectively that upper valve rod from destroying seal membrane when to-and-fro motion.Therefore Security of the present utility model is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of seal membrane in the utility model.
Among the figure: valve seat 1, valve body 2, cylinder support 3, lower valve rod 4, upper valve rod 5, seal membrane 6, diaphragm upper side edge 61, diaphragm lower dent 62, fleam 63, laciniation 64, mounting hole 7, last pylon 8, following double-screw bolt 9, last spiral shell chamber 10, diaphragm center briquetting 11, T type hole 12, top-portion apertures 121, lower hole 122, following pylon 13.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail
Referring to Fig. 1-Fig. 2, a kind of diaphragm type seal arrangement of reciprocating type valve rod, comprise valve seat 1, valve body 2 and cylinder support 3, valve seat 1 is arranged on the bottom of valve body 2, the other end of valve body 2 can be fixedlyed connected by construction bolt with cylinder support 3, the top of valve seat 1 is provided with lower valve rod 4, is provided with upper valve rod 5 in the inside of cylinder support 3, is provided with seal membrane 6 between lower valve rod 4 and the upper valve rod 5.
Be laciniation particularly in seal membrane 6 in the utility model, the diaphragm upper side edge 61 and recessed diaphragm lower dent 62 that comprise level, evenly be provided with laciniation 64 between diaphragm upper side edge 61 and the diaphragm lower dent 62, and face the fleam 63 that forms between the sawtooth on the laciniation 64 mutually and be acute angle, the size of preferred fleam 63 is 10 degree-80 degree, the size of preferred once more fleam 63 is 45 degree, and the diaphragm upper side edge 61 of the seal membrane 6 both sides piece that is fixed grips.
The manufactured materials of preferred seal membrane 6 is that PTFE teflon or its are material modified, but this kind material acid resistant alkali, high temperature resistant.
The center position of seal membrane 6 is provided with mounting hole 7, run through in the mounting hole 7 and be provided with pylon 8, the upper end of last pylon 8 is provided with down double-screw bolt 9, fixedly connected with the top of lower valve rod 4 in the lower end of last pylon 8, the top of upper valve rod 5 is provided with spiral shell chamber 10, last spiral shell chamber 10 and following double-screw bolt 9 corresponding settings, during installation, reversing respectively can be fixedly connected.
Be provided with diaphragm center briquetting 11 between preferred seal membrane 6 and the upper valve rod 5; the shape of diaphragm center briquetting 11 may be selected to be ingot-shaped; the internal surface of its lower surface and diaphragm lower dent 62 is slidingly matched; the inside of diaphragm center briquetting 11 is provided with T type hole 12; T type hole 12 comprises orthogonal top-portion apertures 121 and lower hole 122; top-portion apertures 121 is slidingly matched with upper valve rod 5; lower hole 122 is slidingly matched with last pylon 8; the manufactured materials of diaphragm center briquetting 11 can be soft plastic; rubber; cotton or wire gaze etc.; not only has certain rigidity; and have good elasticity, thus realize the effect of protection seal membrane 6, improve its Security.
The utility model is good sealing effect not only, and wear-resisting wiping, acid resistant alkali, high temperature resistant, Security is higher.
The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned mode of execution; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (8)
1. the diaphragm type seal arrangement of a reciprocating type valve rod, comprise valve seat (1), valve body (2) and cylinder support (3), described valve seat (1) is arranged on the bottom of valve body (2), the other end of valve body (2) is fixedlyed connected with cylinder support (3), it is characterized in that: the top of described valve seat (1) is provided with lower valve rod (4), the inside of described cylinder support (3) is provided with upper valve rod (5), is provided with seal membrane (6) between lower valve rod (4) and the upper valve rod (5).
2. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 1, it is characterized in that: described seal membrane (6) comprises diaphragm upper side edge (61) and diaphragm lower dent (62), evenly be provided with laciniation (64) between diaphragm upper side edge (61) and the diaphragm lower dent (62), and face the fleam (63) that forms between the sawtooth on the laciniation (64) mutually and be acute angle.
3. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 1 and 2, it is characterized in that: the center position of described seal membrane (6) is provided with mounting hole (7), run through in the mounting hole (7) and be provided with pylon (8), the upper end of last pylon (8) is provided with down double-screw bolt (9), fixedlys connected with the top of lower valve rod (4) in the lower end of last pylon (8); The top of described upper valve rod (5) is provided with spiral shell chamber (10), last spiral shell chamber (10) and the corresponding setting of following double-screw bolt (9).
4. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 3, it is characterized in that: be provided with diaphragm center briquetting (11) between described seal membrane (6) and the upper valve rod (5), the internal surface of the lower surface of diaphragm center briquetting (11) and diaphragm lower dent (62) is slidingly matched, the inside of diaphragm center briquetting (11) is provided with T type hole (12), T type hole (12) comprises orthogonal top-portion apertures (121) and lower hole (122), top-portion apertures (121) is slidingly matched with upper valve rod (5), and lower hole (122) is slidingly matched with last pylon (8).
5. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 4 is characterized in that: the described pylon (8) of going up is fixedlyed connected with the top of lower valve rod (4) by pylon (13) down.
6. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 3 is characterized in that: the manufactured materials of described seal membrane (6) is that PTFE teflon or its are material modified.
7. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 3 is characterized in that: the size of described fleam (63) is 10 degree-80 degree.
8. the diaphragm type seal arrangement of a kind of reciprocating type valve rod according to claim 7 is characterized in that: the size of described fleam (63) is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202191481U CN201748031U (en) | 2010-06-08 | 2010-06-08 | Diaphragm-type sealing device of reciprocating-type valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202191481U CN201748031U (en) | 2010-06-08 | 2010-06-08 | Diaphragm-type sealing device of reciprocating-type valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748031U true CN201748031U (en) | 2011-02-16 |
Family
ID=43582709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202191481U Expired - Lifetime CN201748031U (en) | 2010-06-08 | 2010-06-08 | Diaphragm-type sealing device of reciprocating-type valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956867A (en) * | 2010-06-08 | 2011-01-26 | 昆山新莱洁净应用材料股份有限公司 | Diaphragm seal device for reciprocating type valve rod |
| CN104344005A (en) * | 2013-07-30 | 2015-02-11 | 泰思康公司 | Fluid regulators having corrugated diaphragms |
-
2010
- 2010-06-08 CN CN2010202191481U patent/CN201748031U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956867A (en) * | 2010-06-08 | 2011-01-26 | 昆山新莱洁净应用材料股份有限公司 | Diaphragm seal device for reciprocating type valve rod |
| CN101956867B (en) * | 2010-06-08 | 2013-04-03 | 昆山新莱洁净应用材料股份有限公司 | Diaphragm seal device for reciprocating type valve rod |
| CN104344005A (en) * | 2013-07-30 | 2015-02-11 | 泰思康公司 | Fluid regulators having corrugated diaphragms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |