CN105318027B - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
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- CN105318027B CN105318027B CN201410228658.8A CN201410228658A CN105318027B CN 105318027 B CN105318027 B CN 105318027B CN 201410228658 A CN201410228658 A CN 201410228658A CN 105318027 B CN105318027 B CN 105318027B
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- flap
- valve
- valve rod
- sealing
- driving shaft
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Abstract
The invention discloses a kind of novel cutoff valve, including valve body, inlet channel and outlet flow, the exit of inlet channel is correspondingly arranged on the first valve seat and first sealing device, and first sealing device includes the first flap of the first valve rod of the first valve rod and connection, and the first flap is tightly connected the first valve seat；The porch of outlet flow is correspondingly arranged on the second valve seat and the second sealing device, and the second sealing device includes the second flap of the second valve rod of the second valve rod and connection, and the second flap is tightly connected the second valve seat；Universal driving shaft is provided with the middle of first flap and the second flap, universal driving shaft makes the direction of motion of the first flap and the second flap relative or opposite；Using novel cutoff valve provided by the present invention, so that the exit and porch of inlet channel, outlet flow can self sealss, realize dual-seal, sealing property improved on the whole, the stable problem of sealing will not be influenceed because of long-term use, and then extends service life.
Description
Technical field
It is to be related to a kind of novel cutoff valve specifically the present invention relates to a kind of valve.
Background technology
Stop valve is also known as pipe valve valve, is a kind of one of most popular valve, why very popular it is, is due to out
Frictional force is small between sealing surface during closing, relatively durable, and Lift is less, easy to manufacture, easy to maintenance, is applicable not only to
Mesolow, and suitable for high pressure.Stop valve belongs to forced seal formula valve simultaneously, when valve is closed, it is necessary to applied to flap
Plus-pressure, is not leaked with forced seal face.But as use environment becomes more and more strictly, general stop valve is due to its knot
The drawbacks of structure, after long-term use, its sealing property, can be gradually deteriorated, and actual use requirement is not reached much, works as sealing
It when can not meet, will be eliminated by enterprise, reduce the service life of whole stop valve.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of good seal performance, sealing stability is high, and
The novel cutoff valve that can increase the service life.
To reach above-mentioned purpose, technical scheme is as follows：A kind of novel cutoff valve, including valve body, inlet channel
And outlet flow, the exit of the inlet channel is correspondingly arranged on the first valve seat and first sealing device, first sealing
Device includes the first flap of the first valve rod of the first valve rod and connection, and first flap is tightly connected first valve seat；Institute
The porch for stating outlet flow is correspondingly arranged on the second valve seat and the second sealing device, and second sealing device includes the second valve
Bar and the second flap for connecting second valve rod, second flap are tightly connected second valve seat；First flap
Be provided with universal driving shaft in the middle of the second flap, the universal driving shaft make the direction of motion of first flap and the second flap relative or
Conversely.
Further, the first bonnet and the second bonnet, institute are connected at the top of first valve rod and the second valve rod
State and be provided with telescopic element between the second valve rod and the second bonnet.
Further, the telescopic element is stage clip.
Further, the sealing surface of first flap and the second flap is coated with enhancing PTFE protective coatings.
Further, the sealing surface of first valve seat and the second valve seat is coated with stellite protective coating.
Further, the outer surface of the universal driving shaft is electroplate with ceramic protective layer.
Further, between the valve body and the first valve rod, it is provided with sealing shroud between the valve body and the second valve rod
Ring, the two ends of the sealing ring are additionally provided with elastic seal ring.
Further, the novel cutoff valve also includes the drive device for driving first valve rod to move back and forth.
Further, the drive device is handwheel.
Using above-mentioned technical proposal, the beneficial effect of technical solution of the present invention is：First sealing device and the second sealing dress
The setting put so that inlet channel, the exit of outlet flow and porch can self sealss, realize dual-seal；From whole
Sealing property is improved on body, the stable problem of sealing will not be influenceed because of long-term use, and then extends and uses the longevity
Life.
Brief description of the drawings
Technical scheme in technology in order to illustrate the embodiments of the present invention more clearly, in being described below to embodiment technology
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of novel cutoff valve of the invention.
Wherein, 1, valve body, 2, inlet channel, 3, outlet flow, the 4, first valve seat, the 51, first valve rod, the 52, first flap,
6th, the second valve seat, the 71, second valve rod, the 72, second flap, 8, universal driving shaft, the 9, first bonnet, the 10, second bonnet, 11, stage clip,
12nd, sealing ring, 13, elastic seal ring, 14, handwheel.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of novel cutoff valve, including valve body 1, inlet channel 2 and outlet flow 3, inlet channel 2 goes out
The first valve seat 4 and first sealing device are correspondingly arranged at mouthful, first sealing device includes the first valve of the first valve rod 51 and connection
First flap 52 of bar 51, the first flap 52 is tightly connected the first valve seat 4；The porch of outlet flow 3 is correspondingly arranged on second
The sealing device of valve seat 6 and second, the second sealing device includes the second flap 72 of the second valve rod 71 of the second valve rod 71 and connection, the
Two flaps 72 are tightly connected the second valve seat 6；Universal driving shaft 8 is provided with the middle of first flap 52 and the second flap 72, universal driving shaft 8 makes
The direction of motion of first flap 52 and the second flap 72 is relative or opposite.One end of universal driving shaft 8 is through the first flap 52 and with the
The plus thread of one valve rod 51 is connected, and its other end is connected through the second flap 72 and with the left-hand thread of the second valve rod 71.
The top of first valve rod 51 and the second valve rod 71 is connected to the first bonnet 9 and the second bonnet 10, the second valve rod
71 and second are provided with telescopic element between bonnet 10.Wherein telescopic element is preferably stage clip 11.
Sealing ring 12, sealing shroud are provided between the valve rod 51 of valve body 1 and first, between the valve rod 71 of valve body 1 and second
The two ends of ring 12 are additionally provided with elastic seal ring 13.Novel cutoff valve also includes the driving dress that the first valve rod 51 of driving is moved back and forth
Put, wherein, drive device preferentially selects handwheel 14.
The operation principle of the present embodiment is described below：During work, rotation hand wheel 14 drives the first valve rod 51 to move downward,
Due to the effect of universal driving shaft 8, so that the second valve rod 71 can be moved relatively upwards, until the first flap 52 and the second flap 72 will
Inlet channel 2 and outlet flow 3 are sealed, and valve is closed, and medium arrheas；Handwheel 14 is reversely rotated, handwheel 14 can drive the
One motion upwards of valve rod 51, similarly, the second valve rod 71 can be synchronized with the movement downwards, until the first flap 52 and the second flap 72 are remote
From inlet channel 2 and outlet flow 3, valve opening, flow of media.
Embodiment 2
Remaining is same as the previously described embodiments, and difference is, as shown in figure 1, the first flap 52 and the second flap 72
Sealing surface is coated with enhancing PTFE protective coatings, enhances the wearability and corrosion resistance of two flaps, extends and use the longevity
Life.
Embodiment 3
Remaining is same as the previously described embodiments, and difference is, as shown in figure 1, the first valve seat 4 and the second valve seat 6 is close
Front cover is coated with stellite protective coating, enhances the wearability and corrosion resistance of two valve seats, extends and use the longevity
Life.
Embodiment 4
Remaining is same as the previously described embodiments, and difference is, as shown in figure 1, the outer surface of universal driving shaft 8 is electroplate with pottery
Porcelain protective layer, improves the wearability and corrosion resistance of universal driving shaft, extends service life.
By above-mentioned technical proposal, the beneficial effect of technical solution of the present invention is：First sealing device and the second sealing dress
The setting put so that inlet channel, the exit of outlet flow and porch can self sealss, realize dual-seal；From whole
Sealing property is improved on body, the stable problem of sealing will not be influenceed because of long-term use, and then extends and uses the longevity
Life.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of stop valve, it is characterised in that including valve body, inlet channel and outlet flow, the exit of the inlet channel
The first valve seat and first sealing device are correspondingly arranged on, the first sealing device includes the first valve rod of the first valve rod and connection
First flap, first flap is tightly connected first valve seat；The porch of the outlet flow is correspondingly arranged on second
Valve seat and the second sealing device, second sealing device include the second valve rod and connect the second flap of second valve rod,
Second flap is tightly connected second valve seat；Universal driving shaft is provided with the middle of first flap and the second flap, it is described
Universal driving shaft makes the direction of motion of first flap and the second flap relative or opposite；One end of universal driving shaft passes through the first flap simultaneously
It is connected with the first valve rod plus thread, its other end is connected through the second flap and with the second valve rod left-hand thread；During work, hand is rotated
Wheel, drives the first valve rod to move downward, due to the effect of universal driving shaft, so that the second valve rod can be moved relatively upwards, until the
One flap and the second flap seal inlet channel and outlet flow, and valve is closed；Handwheel is reversely rotated, handwheel can drive
First valve rod is moved upwards, similarly, and the second valve rod can be synchronized with the movement downwards, until the first flap and the second flap are away from import
Runner and outlet flow, valve opening.
2. stop valve according to claim 1, it is characterised in that the top of first valve rod and the second valve rod connects respectively
The first bonnet and the second bonnet are connected to, telescopic element is provided between second valve rod and the second bonnet.
3. stop valve according to claim 2, it is characterised in that the telescopic element is stage clip.
4. according to any described stop valves of claim 1-3, it is characterised in that the sealing of first flap and the second flap
Face is coated with enhancing PTFE protective coatings.
5. stop valve according to claim 4, it is characterised in that the sealing surface of first valve seat and the second valve seat sprays
Scribble stellite protective coating.
6. stop valve according to claim 5, it is characterised in that the outer surface of the universal driving shaft is electroplate with ceramic protection
Layer.
7. stop valve according to claim 5, it is characterised in that between the valve body and the first valve rod, the valve body and
Sealing ring is provided between second valve rod, the two ends of the sealing ring are additionally provided with elastic seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228658.8A CN105318027B (en) | 2014-05-28 | 2014-05-28 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228658.8A CN105318027B (en) | 2014-05-28 | 2014-05-28 | A kind of stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105318027A CN105318027A (en) | 2016-02-10 |
| CN105318027B true CN105318027B (en) | 2017-10-27 |
Family
ID=55246039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410228658.8A Active CN105318027B (en) | 2014-05-28 | 2014-05-28 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105318027B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757954A (en) * | 2018-06-19 | 2018-11-06 | 江苏锐鸿机械有限公司 | Antifreeze storm valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US919480A (en) * | 1908-09-14 | 1909-04-27 | George G Mayger | Double-seated valve. |
| US949168A (en) * | 1907-03-18 | 1910-02-15 | Thomas Andrews | Valve. |
| US1420662A (en) * | 1921-04-15 | 1922-06-27 | James D Maxwell | Valve |
| DE3240720A1 (en) * | 1982-11-04 | 1984-05-10 | Linde Ag, 6200 Wiesbaden | Valve for a line carrying explosive fluids |
| CN203857070U (en) * | 2014-05-28 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Novel stop valve |
-
2014
- 2014-05-28 CN CN201410228658.8A patent/CN105318027B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US949168A (en) * | 1907-03-18 | 1910-02-15 | Thomas Andrews | Valve. |
| US919480A (en) * | 1908-09-14 | 1909-04-27 | George G Mayger | Double-seated valve. |
| US1420662A (en) * | 1921-04-15 | 1922-06-27 | James D Maxwell | Valve |
| DE3240720A1 (en) * | 1982-11-04 | 1984-05-10 | Linde Ag, 6200 Wiesbaden | Valve for a line carrying explosive fluids |
| CN203857070U (en) * | 2014-05-28 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Novel stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105318027A (en) | 2016-02-10 |
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