CN203809722U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN203809722U CN203809722U CN201420212476.7U CN201420212476U CN203809722U CN 203809722 U CN203809722 U CN 203809722U CN 201420212476 U CN201420212476 U CN 201420212476U CN 203809722 U CN203809722 U CN 203809722U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- guide flange
- guide
- clack cover
- 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 - Lifetime
Links
- 210000003746 feather Anatomy 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 208000004141 microcephaly Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a corrugated pipe stop valve. The corrugated pipe stop valve comprises a valve body, a valve seat, a valve flap, a valve flap cover, a valve deck, a valve rod, a corrugated pipe, a guide flange and a guide key, wherein the valve deck is matched with the valve body. The valve deck is arranged on an opening in the top of the valve body in a sealing connection mode. The valve seat is fixedly connected to a valve body seat hole, the lower portion of the valve rod penetrates through the valve deck to be connected with the valve flap matched with the valve seat, the bottom end of the valve rod is sleeved with the valve flap cover, and the valve flap cover is arranged on the valve flap in a covering mode. The portion, between the valve flap and the valve flap cover, of the valve rod is sleeved with the corrugated pipe. The guide flange is additionally arranged on the valve deck, the guide flat key is arranged in a guide flange inner hole, and the guide flange is connected to the valve deck through threads. A fixing key groove for containing the guide key is formed in the portion, corresponding to the valve flap cover, of the valve rod, and a guide key groove is formed in a valve flap cover inner hole. The corrugated pipe stop valve has the advantages that the valve rod has the guide function, the valve flap is prevented from rotating by 360 degrees, the valve flap is automatically and finely adjusted to align with the sealing face of the valve seat, the valve flap cover and the valve body have the whole course guide function, and driving modes are flexibly combined.
Description
Technical field
The utility model relates to a kind of bellows stop valve, especially relate to there is stem guiding, prevent 360 ° of rotations of flap, Automatic Fine Tuning and sealing surface of seat centering, the high-performance Bellows valve of valve clack cover and the omnidistance guiding of valve body, driving mode flexible combination.
Background technique
Bellows stop valve adopt bellows replace stem packing letter on common stop valve or with stem packing letter use, can make valve rod position without leakage, to prevent that radioactive material or precious material from leaking outside, or keep high vacuum.But bellows stop valve traditional design in the market, for to cast out guiding rib on stop valve valve gap support, is installed a guide pad and joins work by taper pin and valve rod on valve rod.For guaranteeing accurate location, during assembling, need first first assembling, determine the position of guide pad on valve rod, then valve rod and guide pad are removed to join bore after fixed pin holes, more finally assemble.Traditional design part is heavy, the valve gap design of diversification, and casting mould is many, and manufacturing cost is high, and the cycle is long.Flap is in rising or closing process, flap total travel is without guiding, often under the washing away of medium, 360 ° of flaps rotate freely and vibrate, easily cause valve seal to lose efficacy, even cause flap to get loose, very easily cause the interior leakage of toxic substance or noble metal or be emitted in environment the heavy economic losses that even causes factory to stop for a long time and stop production.Valve driving mode cannot freedom and flexibility be selected or adjust.
Model utility content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of bellows stop valve, has stem guiding, prevents 360 ° of rotations of flap, Automatic Fine Tuning and sealing surface of seat centering, valve clack cover and the omnidistance guiding of valve body, driving mode flexible combination.
Technological scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A bellows stop valve, comprises valve body, valve seat, flap, valve clack cover, the valve gap matching with valve body, valve rod, bellows, guide flange, feather key; Described valve gap is arranged on valve body open top and is tightly connected; Valve seat is fixedly connected on valve block hole, and stem lower portion is connected with through valve gap the flap matching with valve seat; Valve rod bottom is arranged with valve clack cover, and valve clack cover lid is located on flap; It is characterized in that: sheathed bellows on the valve rod between described valve gap and valve clack cover; On described valve gap, install guide flange additional, guide flange endoporus has dive key, and guide flange is threaded connection on valve gap; The valve rod part corresponding with valve clack cover has the fixedly keyway for accommodating feather key, and valve clack cover endoporus is provided with guide key groove.
Described bellows stop valve, is characterized in that: described valve rod lower end is successively through guide flange and valve gap, and stem bottom connecting end is set to spherical end surface.
Described bellows stop valve, is characterized in that: described feather key is dive key.
Described bellows stop valve, is characterized in that: described guide flange top is also provided with gland and Stem Mut; Gland and guide flange are connected by screw fixing; The valve stem tip at gland top arranges Stem Mut.
In addition, described valve stem tip can directly be connected with driving mechanism, and described driving mechanism is a kind of in gear-box driving mechanism, electric driving mechanism, pneumatic drive mechanism.
As preferred version, described bellows stop valve, is characterized in that: described valve clack cover lid is located on flap and is led and prevented that flap from rotating by feather key, is also provided with thrust pad and divided ring between described valve clack cover and flap.
As preferred version, described bellows stop valve, is characterized in that: between described valve rod and valve gap top, be also provided with stem packing.
Beneficial effect: the bellows stop valve that the utility model provides, 1) novel, the different same stop valve valve gap of lower use that requires of structural design, valve parts is accomplished seriation, standardization, generalization, improve the modularization of product specification and produce flexible, reduce mould and cost of production, foundry goods is general and do not need first assembling, significantly shortens manufacturing cycle.2) simple in structure, do not increase the production difficulty of product, effectively eliminated the flap risk that rotation gets loose under medium effect, and potential parking stopping production risk of loss.3) the omnidistance guiding of valve, reduces the friction number of times sealing, and has extended life of valve.4) driving mode such as removing the Stem Mut at top and gland can drive handwheel to change gear-box into, electronic, pneumatic.Driving mode can be selected application flexibly and easily, to adapt to the demand of market diversification.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation;
In figure: valve body 1, valve seat 2, flap 3, thrust pad 4, divided ring 5, valve clack cover 6, feather key 7, valve rod 8, bellows 9, valve gap 10, stem packing 11, dive key 12, guide flange 13, gland 14, screw 15, Stem Mut 16.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a bellows stop valve, comprises valve body 1, valve seat 2, flap 3, thrust pad 4, divided ring 5, valve clack cover 6, feather key 7, valve rod 8, bellows 9, valve gap 10, stem packing 11, dive key 12, guide flange 13, gland 14, screw 15, Stem Mut 16; Described valve gap 10 is arranged on valve body 1 open top and is tightly connected; Valve seat 2 is fixedly connected on 1 hole of valve body, and valve rod 8 bottoms are connected with through valve gap 18 flap 3 matching with valve seat 2; Valve rod 8 bottoms are arranged with valve clack cover 6, and valve clack cover 6 lids are located on flap 3; Sheathed bellows 9 on valve rod 8 between described valve gap 10 and valve clack cover 6; On described valve gap 10, install guide flange 13 additional, guide flange 13 endoporus have dive key 12, and guide flange 13 is threaded connection on valve gap 10;
Valve rod 8 is successively through guide flange 13 and valve gap 10, and the bottom connecting end of valve rod 8 is set to spherical end surface; The all directions that can guarantee like this flap move freely fine setting to guarantee sealing with sealing surface of seat centering, because rotation causes sealing surface to change, do not cause leaking, thereby can prevent that again flap 360 ° of rotations and vibration under the effect of fluid from causing flap to get loose.
Valve rod 8 part corresponding with valve clack cover 6 has the fixedly keyway for accommodating feather key 7, and valve clack cover 6 endoporus are provided with guide key groove; Feather key 7 and fixing keyway drive fit, with valve clack cover radially and tangential loose fit, feather key 7 is dive key.Valve clack cover shoulder and body cavity Spielpassung to the omnidistance guiding of flap, reduce the friction number of times of sealing in valve opening or closing process, have extended life of valve.
In the present embodiment, described guide flange 13 tops are provided with gland 14 and Stem Mut 16; Gland 14 is connected and fixed by screw 15 with guide flange 13; Valve rod 8 tops at gland 14 tops arrange Stem Mut 16.Described valve stem tip also can arrange a kind of in gear-box driving mechanism, electric driving mechanism, pneumatic drive mechanism.Remove Stem Mut and the gland at top, mounting teeth roller box, electronic or pneumatic actuator, can drive handwheel and change gear-box, the driving mode such as electronic, pneumatic into, adapts to the demand of market diversification.
Described valve clack cover 3 lids are located on flap and prevent that by feather key 7 guiding flap from rotating, and are also provided with thrust pad 4 and divided ring 5 between described valve clack cover 6 and flap 3.
The utility model stop valve not rotation and lifting valve rod is used key guiding; Realized the Modular Flexible of product and produced, general at different valve operation mode bottom flanges.
Assembly process of the present utility model is as follows:
1) lower end of valve rod 8 trapezoidal threads is processed with fixedly keyway, and guide flange 13 endoporus have guide key groove, is threaded connection on valve gap 10, fixedly in keyway, places common dive key 12.
2) while assembling, guide flange 13 is installed on valve gap 10 top microcephalies by screw thread, valve rod 8 penetrates from 10 stomidiums of valve gap, valve rod 8 fixedly keyway before entering guide flange 13 endoporus, dive key 12 is installed, guarantee that key is fit into guide flange guide key groove and completes top assembling.Valve seat 2 is mounted with on valve body 1, feather key 7 is put into the keyway of valve rod 8 little heads, then from the microcephaly lower end of valve rod 8, pack valve clack cover 6 into, guarantee that feather key 7 packs in the guide key groove of valve clack cover 6, then the valve rod head of above-mentioned parts is packed in the circular hole of flap 3 heads, then rotate flap, until valve clack cover 6 shoulder lower limbs are adjacent in flap 3 upper-end surfaces, for guaranteeing tight connection, in use, screw thread can not get loose, valve clack cover 6 is done weld all around with flap 3 and is connected, form flap assembly, when actuate valve stem 7 makes valve closing, flap 3 straight lines and valve seat 2 sealings have been guaranteed.
3) valve clack cover 6 shoulders and valve body 1 inner chamber Spielpassung, to the omnidistance guiding of flap 3.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a bellows stop valve, comprises valve body, valve seat, flap, valve clack cover, the valve gap matching with valve body, valve rod, bellows, guide flange, feather key; Described valve gap is arranged on valve body open top and is tightly connected; Valve seat is fixedly connected on valve block hole, and stem lower portion is connected with through valve gap the flap matching with valve seat; Valve rod bottom is arranged with valve clack cover, and valve clack cover lid is located on flap; It is characterized in that: sheathed bellows on the valve rod between described valve gap and valve clack cover; On described valve gap, install guide flange additional, guide flange endoporus has dive key, and guide flange is threaded connection on valve gap; The valve rod part corresponding with valve clack cover has the fixedly keyway for accommodating feather key, and valve clack cover endoporus is provided with guide key groove.
2. bellows stop valve according to claim 1, is characterized in that: described valve rod lower end is successively through guide flange and valve gap, and stem bottom connecting end is set to spherical end surface.
3. bellows stop valve according to claim 1, is characterized in that: described feather key is dive key.
4. bellows stop valve according to claim 1, is characterized in that: described guide flange top is also provided with gland and Stem Mut; Gland and guide flange are connected by screw fixing; The valve stem tip at gland top arranges Stem Mut.
5. bellows stop valve according to claim 1, is characterized in that: described valve stem tip is connected with driving mechanism, and described driving mechanism is a kind of in gear-box driving mechanism, electric driving mechanism, pneumatic drive mechanism.
6. bellows stop valve according to claim 1, is characterized in that: described valve clack cover lid is located on flap and is led and prevented that flap from rotating by feather key, is also provided with thrust pad and divided ring between described valve clack cover and flap.
7. according to the bellows stop valve described in claim 1 to 6 any one, it is characterized in that: between described valve rod and valve gap top, be also provided with stem packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212476.7U CN203809722U (en) | 2014-04-29 | 2014-04-29 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212476.7U CN203809722U (en) | 2014-04-29 | 2014-04-29 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809722U true CN203809722U (en) | 2014-09-03 |
Family
ID=51448472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420212476.7U Expired - Lifetime CN203809722U (en) | 2014-04-29 | 2014-04-29 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925381A (en) * | 2014-04-29 | 2014-07-16 | 昆山维萨阀门有限公司 | Stop valve of corrugated pipe |
-
2014
- 2014-04-29 CN CN201420212476.7U patent/CN203809722U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925381A (en) * | 2014-04-29 | 2014-07-16 | 昆山维萨阀门有限公司 | Stop valve of corrugated pipe |
| CN103925381B (en) * | 2014-04-29 | 2016-06-22 | 昆山维萨阀门有限公司 | Bellows stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215324 No. 18 Jinxi Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: KUNSHAN VIZA VALVE Co.,Ltd. Address before: 215324 No. 18 Jinxi Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN WEISA VALVE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |