CN203857070U - Novel stop valve - Google Patents
Novel stop valve Download PDFInfo
- Publication number
- CN203857070U CN203857070U CN201420276371.8U CN201420276371U CN203857070U CN 203857070 U CN203857070 U CN 203857070U CN 201420276371 U CN201420276371 U CN 201420276371U CN 203857070 U CN203857070 U CN 203857070U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve rod
- novel cutoff
- valve seat
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000011253 protective coating Substances 0.000 claims description 6
- 229910001347 Stellite Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a novel stop valve which comprises a valve body, an inlet runner and an outlet runner. A first valve seat and a first sealing unit are arranged at an outlet of the inlet runner. The first sealing unit comprises a first valve stem and a first valve clack, and the first valve clack is connected with the first valve stem, and is airtightly connected with the first valve seat. A second valve seat and a second sealing unit are arranged at an inlet of the outlet runner correspondingly. The second sealing unit comprises a second valve stem and a second valve clack, and the second valve clack is connected with the second valve stem and further airtightly connected with the second valve seat. A linkage shaft is arranged between the first valve clack and the second valve clack and drives the same to move in the same or reserve direction. Since the outlet of the inlet runner and the inlet of the outlet runner can be sealed automatically, double-seal effect is achieved, the sealing performance is improved completely, influences to sealing stability after long-term use are avoided, and service life of the stop valve is prolonged.
Description
Technical field
The utility model relates to a kind of valve, specifically, relates to a kind of novel cutoff valve.
Background technique
Stop valve claims again pipe valve valve, is one of most popular a kind of valve, and why very popular it is, be due in switching process between sealing surface frictional force little, more durable, Lift is little, easy to manufacture, easy to maintenance, be not only applicable to mesolow, and be applicable to high pressure.Stop valve belongs to forced seal formula valve simultaneously, when valve closing, must exert pressure to flap, with forced seal face, does not leak.But along with Environmental Conditions becomes more and more stricter, general stop valve is due to the drawback of its structure, after long-term use, its sealability is variation gradually, do not reach actual usage requirement far away, when sealing can not meet, will be eliminated by enterprise, reduced the working life of whole stop valve.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of good seal performance, and sealing stability is high, and the novel cutoff valve that can increase the service life.
For achieving the above object, the technical solution of the utility model is as follows: a kind of novel cutoff valve, comprise valve body, inlet channel and outlet flow, the outlet port correspondence of described inlet channel is provided with the first valve seat and the first seal arrangement, described the first seal arrangement comprises the first valve rod and the first flap that is connected the first valve rod, described the first flap described the first valve seat that is tightly connected; The ingress correspondence of described outlet flow is provided with the second valve seat and the second seal arrangement, and described the second seal arrangement comprises the second valve rod and the second flap that is connected described the second valve rod, and described second valve flap seal connects described the second valve seat; In the middle of described the first flap and the second flap, be provided with couple axle, described couple axle makes the moving direction of described the first flap and the second flap relative or contrary.
Further, the top of described the first valve rod and the second valve rod is connected with respectively the first valve gap and the second valve gap, between described the second valve rod and the second valve gap, is provided with telescopic element.
Further, described telescopic element is stage clip.
Further, the sealing surface of described the first flap and the second flap is all coated with and strengthens PTFE protective coating.
Further, the sealing surface of described the first valve seat and the second valve seat is all coated with stellite protective coating.
Further, the outer surface of described couple axle is electroplate with ceramic protective layer.
Further, between described valve body and the first valve rod, be provided with sealing ring between described valve body and the second valve rod, the two ends of described sealing ring are also provided with elastic seal ring.
Further, described novel cutoff valve also comprises the drive unit that drives described the first valve rod to move back and forth.
Further, described drive unit is handwheel.
Adopt technique scheme, the beneficial effect of technical solutions of the utility model is: the setting of the first seal arrangement and the second seal arrangement, and make the outlet port of inlet channel, outlet flow and the ingress all can selfsealings, realize double seal; Improved on the whole sealability, can not affect because of long-term use the stable problem of sealing, and then extend working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment technology, to the accompanying drawing of required use in embodiment's technical description be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of novel cutoff valve of the utility model.
Wherein, 1, valve body, 2, inlet channel, 3, outlet flow, the 4, first valve seat, the 51, first valve rod, 52, the first flap, the 6, second valve seat, the 71, second valve rod, 72, the second flap, 8, couple axle, the 9, first valve gap, 10, the second valve gap, 11, stage clip, 12, sealing ring, 13, elastic seal ring, 14, handwheel.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
As shown in Figure 1, a kind of novel cutoff valve, comprise valve body 1, inlet channel 2 and outlet flow 3, the outlet port correspondence of inlet channel 2 is provided with the first valve seat 4 and the first seal arrangement, the first seal arrangement comprises the first valve rod 51 and the first flap 52, the first flaps 52 that are connected the first valve rod 51 first valve seat 4 that is tightly connected; The ingress correspondence of outlet flow 3 is provided with the second valve seat 6 and the second seal arrangement, and the second seal arrangement comprises the second valve rod 71 and the second flap 72, the second flaps 72 that are connected the second valve rod 71 second valve seat 6 that is tightly connected; In the middle of the first flap 52 and the second flap 72, be provided with couple axle 8, couple axle 8 makes the moving direction of the first flap 52 and the second flap 72 relative or contrary.One end of couple axle 8 is passed the first flap 52 and is connected with the first valve rod 51 plus threads, and its other end passes the second flap 72 and is connected with the second valve rod 71 left-hand threads.
The top of the first valve rod 51 and the second valve rod 71 is connected with respectively between the first valve gap 9 and the second valve gap 10, the second valve rods 71 and the second valve gap 10 and is provided with telescopic element.Wherein telescopic element is preferably stage clip 11.
Between valve body 1 and the first valve rod 51, be provided with sealing ring 12 between valve body 1 and the second valve rod 71, the two ends of sealing ring 12 are also provided with elastic seal ring 13.Novel cutoff valve also comprises the drive unit that drives the first valve rod 51 to move back and forth, and wherein, drive unit is preferentially selected handwheel 14.
Introduce the working principle of the present embodiment below: during work, rotation hand wheel 14, drive the first valve rod 51 to move downward, effect due to couple axle 8, thereby the second valve rod 71 can relatively move upward, until the first flap 52 and the second flap 72 seal inlet channel 2 and outlet flow 3, valve closing, medium arrheas; Counterrotating handwheel 14, handwheel 14 can drive the first valve rods 51 to move upward, and in like manner, the second valve rod 71 can be synchronized with the movement downwards, until the first flap 52 and the second flap 72 be away from inlet channel 2 and outlet flow 3, valve opening, medium circulation.
Embodiment 2
All the other are same as the previously described embodiments, and difference is, as shown in Figure 1, the sealing surface of the first flap 52 and the second flap 72 is all coated with and strengthens PTFE protective coating, has strengthened wear resistance and the corrosion resistance of two flaps, has extended working life.
Embodiment 3
All the other are same as the previously described embodiments, and difference is, as shown in Figure 1, the sealing surface of the first valve seat 4 and the second valve seat 6 is all coated with stellite protective coating, has strengthened wear resistance and the corrosion resistance of two valve seats, has extended working life.
Embodiment 4
All the other are same as the previously described embodiments, and difference is, as shown in Figure 1, the outer surface of couple axle 8 is electroplate with ceramic protective layer, has improved wear resistance and the corrosion resistance of couple axle, has extended working life.
By technique scheme, the beneficial effect of technical solutions of the utility model is: the setting of the first seal arrangement and the second seal arrangement, and make the outlet port of inlet channel, outlet flow and the ingress all can selfsealings, realize double seal; Improved on the whole sealability, can not affect because of long-term use the stable problem of sealing, and then extend working life.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a novel cutoff valve, it is characterized in that, comprise valve body, inlet channel and outlet flow, the outlet port correspondence of described inlet channel is provided with the first valve seat and the first seal arrangement, described the first seal arrangement comprises the first valve rod and the first flap that is connected the first valve rod, described the first flap described the first valve seat that is tightly connected; The ingress correspondence of described outlet flow is provided with the second valve seat and the second seal arrangement, and described the second seal arrangement comprises the second valve rod and the second flap that is connected described the second valve rod, and described second valve flap seal connects described the second valve seat; In the middle of described the first flap and the second flap, be provided with couple axle, described couple axle makes the moving direction of described the first flap and the second flap relative or contrary.
2. novel cutoff valve according to claim 1, is characterized in that, the top of described the first valve rod and the second valve rod is connected with respectively the first valve gap and the second valve gap, between described the second valve rod and the second valve gap, is provided with telescopic element.
3. novel cutoff valve according to claim 2, is characterized in that, described telescopic element is stage clip.
4. according to the arbitrary described novel cutoff valve of claim 1-3, it is characterized in that, the sealing surface of described the first flap and the second flap is all coated with and strengthens PTFE protective coating.
5. novel cutoff valve according to claim 4, is characterized in that, the sealing surface of described the first valve seat and the second valve seat is all coated with stellite protective coating.
6. novel cutoff valve according to claim 5, is characterized in that, the outer surface of described couple axle is electroplate with ceramic protective layer.
7. novel cutoff valve according to claim 5, is characterized in that, between described valve body and the first valve rod, be provided with sealing ring between described valve body and the second valve rod, the two ends of described sealing ring are also provided with elastic seal ring.
8. novel cutoff valve according to claim 6, is characterized in that, described novel cutoff valve also comprises the drive unit that drives described the first valve rod to move back and forth.
9. novel cutoff valve according to claim 8, is characterized in that, described drive unit is handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276371.8U CN203857070U (en) | 2014-05-28 | 2014-05-28 | Novel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276371.8U CN203857070U (en) | 2014-05-28 | 2014-05-28 | Novel stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857070U true CN203857070U (en) | 2014-10-01 |
Family
ID=51606920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276371.8U Expired - Fee Related CN203857070U (en) | 2014-05-28 | 2014-05-28 | Novel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318027A (en) * | 2014-05-28 | 2016-02-10 | 苏州科迪流体控制设备有限公司 | Novel stop valve |
-
2014
- 2014-05-28 CN CN201420276371.8U patent/CN203857070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318027A (en) * | 2014-05-28 | 2016-02-10 | 苏州科迪流体控制设备有限公司 | Novel stop valve |
| CN105318027B (en) * | 2014-05-28 | 2017-10-27 | 苏州科迪流体控制设备有限公司 | A kind of stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |