CN105318027A - Novel stop valve - Google Patents
Novel stop valve Download PDFInfo
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- CN105318027A CN105318027A CN201410228658.8A CN201410228658A CN105318027A CN 105318027 A CN105318027 A CN 105318027A CN 201410228658 A CN201410228658 A CN 201410228658A CN 105318027 A CN105318027 A CN 105318027A
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- valve
- flap
- valve rod
- novel cutoff
- rod
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Abstract
The invention discloses a novel stop valve. The novel stop valve comprises a valve body, an inlet flow path and an outlet flow path, wherein an outlet of the inlet flow path is correspondingly provided with a first valve seat and a first sealing device; the first sealing device comprises a first valve rod and a first valve clack connected with the first valve rod, and the first valve clack is connected with the first valve seat in a sealing mode; an inlet of the outlet flow path is correspondingly provided with a second valve seat and a second sealing device; the second sealing device comprises a second valve rod and a second valve clack connected with the second valve rod, and the second valve clack is connected with the second valve seat in a sealing mode; a universal driving shaft is arranged between the first valve clack and the second valve clack and enables the first valve clack and the second valve clack to move closely or remotely. By the adoption of the novel stop valve, both the outlet of the inlet flow path and the inlet of the outlet flow path can be self-sealed, dual sealing is realized, the sealing performance is improved integrally, sealing stability will not be influenced by long-term use, and then the service life is prolonged.
Description
Technical field
The present invention relates to a kind of valve, specifically, relate to a kind of novel cutoff valve.
Background technique
Stop valve is also known as pipe valve valve, and be one of most popular a kind of valve, why very popular it is, be due in opening and closing 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 apply pressure, do not leak with forced seal face to flap.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 can be deteriorated gradually, do not reach actual usage requirement far away, when sealing can not meet, will be eliminated by enterprise, reduce the working life of whole stop valve.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of good seal performance, sealing stability is high, and the novel cutoff valve that can increase the service life.
For achieving the above object, technological scheme of the present invention 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 first seal arrangement comprises the first valve rod and the first flap being connected the first valve rod, and described first flap is tightly connected described first valve seat; The ingress correspondence of described outlet flow is provided with the second valve seat and the second seal arrangement, and described second seal arrangement comprises the second valve rod and the second flap being connected described second valve rod, and described second flap is tightly connected described second valve seat; Be provided with couple axle in the middle of described first flap and the second flap, described couple axle makes described first flap relative with the moving direction of the second flap or contrary.
Further, the top of described first valve rod and the second valve rod is connected to the first valve gap and the second valve gap, is provided with telescopic element between described second valve rod and the second valve gap.
Further, described telescopic element is stage clip.
Further, the sealing surface of described first flap and the second flap is all coated with and strengthens PTFE protective coating.
Further, the sealing surface of described 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, be provided with sealing ring between described valve body and the first valve rod, 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 driving described first valve rod to move back and forth.
Further, described drive unit is handwheel.
Adopt technique scheme, the beneficial effect of technical solution of the present invention is: the setting of the first seal arrangement and the second seal arrangement, makes the outlet port of inlet channel, outlet flow and ingress all can selfsealings, realizes double seal; Improve sealability on the whole, the stable problem of sealing can not be affected because of long-term use, and then extend working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in embodiment of the present invention technology, be briefly described to the accompanying drawing used required in the description of embodiment's technology below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of novel cutoff valve of the present invention.
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 embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
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, first seal arrangement comprises the first valve rod 51 and the first flap 52, first flap 52 being connected the first valve rod 51 and to be tightly connected the first valve seat 4; 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, second flap 72 being connected the second valve rod 71 and to be tightly connected the second valve seat 6; Be provided with couple axle 8 in the middle of first flap 52 and the second flap 72, couple axle 8 makes the first flap 52 relative with the moving direction of the second flap 72 or contrary.One end of couple axle 8 is passed the first flap 52 and is connected with the first valve rod 51 plus thread, and its other end passes the second flap 72 and is connected with the second valve rod 71 left-hand thread.
The top of the first valve rod 51 and the second valve rod 71 is connected to the first valve gap 9 and is provided with telescopic element between the second valve gap 10, second valve rod 71 and the second valve gap 10.Wherein telescopic element is preferably stage clip 11.
Be provided with sealing ring 12 between valve body 1 and the first valve rod 51, 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 driving first valve rod 51 moves back and forth, and wherein, handwheel 14 preferentially selected by drive unit.
Introduce the working principle of the present embodiment below: during work, rotation hand wheel 14, the first valve rod 51 is driven to move downward, due to the effect of couple axle 8, thus the second valve rod 71 can relatively move upward, until inlet channel 2 and outlet flow 3 seal by the first flap 52 and the second flap 72, valve closing, medium arrheas; Counterrotating handwheel 14, handwheel 14 can drive the first valve rod 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 are away from inlet channel 2 and outlet flow 3, valve opening, medium circulates.
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, enhances wear resistance and the corrosion resistance of two flaps, extends 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, enhances wear resistance and the corrosion resistance of two valve seats, extends 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, improve wear resistance and the corrosion resistance of couple axle, extend working life.
By technique scheme, the beneficial effect of technical solution of the present invention is: the setting of the first seal arrangement and the second seal arrangement, makes the outlet port of inlet channel, outlet flow and ingress all can selfsealings, realizes double seal; Improve sealability on the whole, the stable problem of sealing can not be affected because of long-term use, and then extend working life.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention 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 first seal arrangement comprises the first valve rod and the first flap being connected the first valve rod, and described first flap is tightly connected described first valve seat; The ingress correspondence of described outlet flow is provided with the second valve seat and the second seal arrangement, and described second seal arrangement comprises the second valve rod and the second flap being connected described second valve rod, and described second flap is tightly connected described second valve seat; Be provided with couple axle in the middle of described first flap and the second flap, described couple axle makes described first flap relative with the moving direction of the second flap or contrary.
2. novel cutoff valve according to claim 1, is characterized in that, the top of described first valve rod and the second valve rod is connected to the first valve gap and the second valve gap, is provided with telescopic element between described second valve rod and the second valve gap.
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 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 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, is provided with sealing ring between described valve body and the first valve rod, between described valve body and the second valve rod, and 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 driving described 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 |
|---|---|---|---|
| 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 true CN105318027A (en) | 2016-02-10 |
| CN105318027B 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) |
Cited By (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105318027B (en) | 2017-10-27 |
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