CN103953733A - Novel stop valve - Google Patents
Novel stop valve Download PDFInfo
- Publication number
- CN103953733A CN103953733A CN201410149290.6A CN201410149290A CN103953733A CN 103953733 A CN103953733 A CN 103953733A CN 201410149290 A CN201410149290 A CN 201410149290A CN 103953733 A CN103953733 A CN 103953733A
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- CN
- China
- Prior art keywords
- valve
- fluid
- spool
- valve body
- under
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The invention provides a novel stop valve. The novel stop valve comprises a valve body, a valve seat, a valve rod and a valve element, wherein a liquid channel is formed in the valve body; a liquid inlet port is formed in the first side of the valve body; a liquid outlet port is formed in the second side of the valve body; the valve seat is mounted on the valve body; the valve element is mounted at the lower end of the valve rod in a vertical sliding way and is located above the liquid channel; under a free state, the valve element can seal the liquid channel under the effect of dead weight; under a liquid supply work state, the liquid pressure of the liquid inlet port is higher than the liquid pressure of the liquid outlet port; the valve element is pushed to upwards move to open the liquid channel under the hydraulic effect; under a cut-off work state, the liquid pressure of the liquid inlet port is lower than the liquid pressure of the liquid outlet port; the valve element is pushed to downwards move to seal the liquid channel under a dead-weight effect of the valve element and the hydraulic effect. The novel stop valve has two functions of a stop valve and a check valve, the pipeline mounting efficiency is improved, the cost is saved, and the leakage problem existing in secondary installation is avoided.
Description
Technical field
The present invention relates to valve technology field, relate in particular to a kind of novel cutoff valve.
Background technique
In traditional pipeline is installed, in order to control the backflow phenomenon of fed sheet of a media and feed flow to be controlled, generally on conveying branch road, a safety check and a stop valve are installed; In order to realize above-mentioned technique effect, a safety check and a stop valve are installed on pipeline simultaneously, its operation is more loaded down with trivial details, and cost is higher, and there is the hidden danger of leaking in secondary installing.
Summary of the invention
In order to solve the technical problem existing in background technique, the present invention proposes a kind of novel cutoff valve simultaneously with stop valve and two kinds of functions of safety check, improved pipeline installation efficiency, saved installation cost, the leakage problem of having avoided secondary installing to exist.
A kind of novel cutoff valve that the present invention proposes, comprises valve body, valve seat, valve rod and spool; In valve body, be provided with fluid passage, the central axis of fluid passage is vertical direction and arranges, in valve body the first side, be provided with feed liquor port, feed liquor port be communicated with fluid passage and the feed liquor direction of feed liquor port in fluid passage below, in valve body the second side, be provided with fluid port, fluid port be communicated with fluid passage and the fluid direction of liquid outlet channel in fluid passage top; Valve seat is arranged on valve body, and valve rod is vertical direction and is arranged on valve seat, and spool can slide up and down to be arranged on valve rod lower end and in fluid passage top, spool coordinates with fluid passage and can open or sealing liquid passage; Under free state, spool is sealing liquid passage under Gravitative Loads; Under feed flow working state, the fluid pressure of feed liquor port is greater than the fluid pressure of fluid port, promotes spool and move upward to open fluid passage under hydraulic pressure; Under cut-off working state, the fluid pressure of feed liquor port is less than the fluid pressure of fluid port, promotes spool and move downward with sealing liquid passage under the Gravitative Loads of spool and hydraulic pressure.
Preferably, spool comprises core bar and core print, and core print is located at core bar lower end, and core bar can slide up and down to be arranged on valve rod lower end.
Preferably, be provided with the pilot hole of opening in valve rod lower end, core bar is arranged in pilot hole, and core bar can slide up and down in pilot hole.
Preferably, in pilot hole lower end, be provided with the baffle ring that internal diameter is less than pilot hole internal diameter, in core bar upper end, be provided with the baffle plate that external diameter is greater than core bar external diameter.
Preferably, core print is up big and down small cone structure.
Preferably, fluid passage is circular channel, and core print is up big and down small conical structure.
Preferably, under the state of spool sealing liquid passage, between spool and fluid passage, be linear sealing structure or surface seal structure.
Preferably, valve rod is threaded connection mode and is arranged on valve seat, and between valve rod and valve seat, is positioned at above being threaded and is provided with seal ring.
Preferably, valve seat is threaded connection mode and is arranged on valve body, and is provided with seal ring between valve body and valve seat.
Preferably, at the feed liquor port of valve body, be provided with feed liquor interior threaded hole, at the fluid port of valve body, be provided with fluid interior threaded hole.
In the present invention, the spool of novel cutoff valve coordinates with fluid passage and can open or sealing liquid passage; During liquid feeding end confession liquid, inlet hydraulic jack-up spool is to open fluid passage, and liquid is delivered to fluid port from feed liquor port by fluid passage; When feed liquor port stops feed flow, sealing liquid passage under the effect of spool deadweight and time hydraulic coupling, reaches the effect of safety check; In addition, the valve rod screwing on valve body is pressed on spool on valve body, reaches the effect of stop valve.The novel cutoff valve that the present invention proposes, has improved pipeline installation efficiency, has saved cost, the leakage problem of having avoided secondary installing to exist.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of novel cutoff valve of proposing of the present invention.
Fig. 2 is the structural representation of spool in Fig. 1.
Fig. 3 is novel cutoff valve in Fig. 1 structural representation when feed liquor.
Fig. 4 is novel cutoff valve in Fig. 1 structural representation when returning liquid.
Embodiment
As depicted in figs. 1 and 2, Fig. 1 is the structural representation of a kind of novel cutoff valve of proposing of the present invention, and Fig. 2 is the structural representation of spool in Fig. 1.
See figures.1.and.2, a kind of novel cutoff valve that the present invention proposes, comprises valve body 1, valve seat 2, valve rod 3 and spool 4.
In valve body 1, be provided with round liquid path 10, the central axis of fluid passage 10 is vertical direction and arranges; In valve body 1 first side, be provided with feed liquor port 11, feed liquor port 11 be communicated with fluid passage 10 and the feed liquor direction of feed liquor port 11 in fluid passage 10 belows, in valve body 1 second side, be provided with fluid port 12, fluid port 12 be communicated with fluid passage 10 and the fluid direction of liquid outlet channel 12 in fluid passage 10 tops; Feed liquor port 11 at valve body 1 is provided with feed liquor interior threaded hole, at the fluid port 12 of valve body 1, is provided with fluid interior threaded hole.
Valve seat 2 is threaded connection mode and is arranged on valve body 1, between valve body 1 and valve seat 2, is provided with seal ring, and valve rod 3 is threaded connection mode and is vertical direction and is arranged on valve seat 2, is positioned at above being threaded and is provided with seal ring between valve rod 3 and valve seat 2.
Spool 4 can slide up and down to be arranged on valve rod 3 lower ends and in fluid passage 10 tops, spool 4 comprises core bar 41 and conical core print 42, and core print 42 is located at core bar 41 lower ends, and core bar 41 can slide up and down to be arranged on valve rod 3 lower ends; Particularly, be provided with the pilot hole 31 of opening in valve rod 3 lower ends, core bar 41 is arranged in pilot hole 31, and core bar 41 can slide up and down in pilot hole 31; In pilot hole 31 lower ends, be provided with the baffle ring 32 that internal diameter is less than pilot hole 31 internal diameters, in core bar 41 upper ends, be provided with the baffle plate 43 that external diameter is greater than core bar 41 external diameters, spool 4 coordinates with fluid passage 10 and can open or sealing liquid path 10; Under the state of spool 4 sealing liquid path 10s, between spool 4 and fluid passage 10, be linear sealing structure.
Under free state, spool 4 is sealing liquid path 10 under Gravitative Loads; Under feed flow working state, as shown in Figure 3, the fluid pressure of feed liquor port 11 is greater than the fluid pressure of fluid port 12, promotes spool 4 and move upward to open fluid passage 10 under hydraulic pressure; Under cut-off working state, as shown in Figure 4, the fluid pressure of feed liquor port 11 is less than the fluid pressure of fluid port 12, promotes spool 4 and move downward with sealing liquid path 10 under the Gravitative Loads of spool 4 and hydraulic pressure.
In the present invention, when the feed liquor port 11 of valve body 1 starts feed liquor, inlet hydraulic meeting jack-up spool 4, thereby get through fluid passage 10, reach into water object, spool 4 is under feed liquor rate simultaneously, along the pilot hole 31 on valve rod 3, move up and down, in order to adapt to different flow stream velocities; When the feed liquor port 11 of valve body 1 stops feed flow, under the impact of spool 4 deadweights and time hydraulic coupling, sealing liquid path 10, reaches the effect of safety check; In addition the handle screwing on valve body 1 is pressed on movable spool 2 on valve body 1, reaches the effect of stop valve.The novel cutoff valve that the present invention proposes, has improved pipeline installation efficiency, has saved cost, the leakage problem of having avoided secondary installing to exist.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technological scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a novel cutoff valve, is characterized in that, comprises valve body (1), valve seat (2), valve rod (3) and spool (4); In valve body (1), be provided with fluid passage (10), the central axis of fluid passage (10) is vertical direction and arranges, in valve body (1) first side, be provided with feed liquor port (11), feed liquor port (11) be communicated with fluid passage (10) and the feed liquor direction of feed liquor port (11) in fluid passage (10) below, in valve body (1) second side, be provided with fluid port (12), fluid port (12) be communicated with fluid passage (10) and the fluid direction of liquid outlet channel (12) in fluid passage (10) top; Valve seat (2) is arranged on valve body (1), valve rod (3) is vertical direction and is arranged on valve seat (2), spool (4) can slide up and down to be arranged on valve rod (3) lower end and in fluid passage (10) top, spool (4) coordinates with fluid passage (10) and can open or sealing liquid passage (10); Under free state, spool (4) is sealing liquid passage (10) under Gravitative Loads; Under feed flow working state, the fluid pressure of feed liquor port (11) is greater than the fluid pressure of fluid port (12), promotes spool (4) and move upward to open fluid passage (10) under hydraulic pressure; Under cut-off working state, the fluid pressure of feed liquor port (11) is less than the fluid pressure of fluid port (12), promotes spool (4) and move downward with sealing liquid passage (10) under the Gravitative Loads of spool (4) and hydraulic pressure.
2. novel cutoff valve according to claim 1, is characterized in that, spool (4) comprises core bar (41) and core print (42), and core print (42) is located at core bar (41) lower end, and core bar (41) can slide up and down to be arranged on valve rod (3) lower end.
3. novel cutoff valve according to claim 2, is characterized in that, is provided with the pilot hole (31) of opening in valve rod (3) lower end, and core bar (41) is arranged in pilot hole (31), and core bar (41) can slide up and down in pilot hole (31).
4. novel cutoff valve according to claim 3, is characterized in that, in pilot hole (31) lower end, is provided with the baffle ring (32) that internal diameter is less than pilot hole (31) internal diameter, in core bar (41) upper end, is provided with the baffle plate (43) that external diameter is greater than core bar (41) external diameter.
5. novel cutoff valve according to claim 2, is characterized in that, core print (42) is up big and down small cone structure.
6. novel cutoff valve according to claim 2, is characterized in that, fluid passage (10) is circular channel, and core print (42) is up big and down small conical structure.
7. according to the novel cutoff valve described in any one in claim 1-6, it is characterized in that, under the state of spool (4) sealing liquid passage (10), between spool (4) and fluid passage (10), be linear sealing structure or surface seal structure.
8. according to the novel cutoff valve described in any one in claim 1-6, it is characterized in that, it is upper that valve rod (3) mode of being threaded connection is arranged on valve seat (2), and between valve rod (3) and valve seat (2), be positioned at above being threaded and be provided with seal ring.
9. according to the novel cutoff valve described in any one in claim 1-6, it is characterized in that, it is upper that valve seat (2) mode of being threaded connection is arranged on valve body (1), and be provided with seal ring between valve body (1) and valve seat (2).
10. according to the novel cutoff valve described in any one in claim 1-6, it is characterized in that, at the feed liquor port (11) of valve body (1), be provided with feed liquor interior threaded hole, at the fluid port (12) of valve body (1), be provided with fluid interior threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149290.6A CN103953733B (en) | 2014-04-14 | 2014-04-14 | Novel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410149290.6A CN103953733B (en) | 2014-04-14 | 2014-04-14 | Novel stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953733A true CN103953733A (en) | 2014-07-30 |
| CN103953733B CN103953733B (en) | 2017-05-03 |
Family
ID=51331048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410149290.6A Active CN103953733B (en) | 2014-04-14 | 2014-04-14 | Novel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103953733B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641295A (en) * | 2015-10-28 | 2017-05-10 | 江苏海达船用阀业有限公司 | High-temperature-resisting check and stop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720204Y (en) * | 2004-08-16 | 2005-08-24 | 浙江盾安华强机械有限公司 | Stopping non-return valve |
| CN201071938Y (en) * | 2007-07-26 | 2008-06-11 | 上海凯工阀门有限公司 | Dual-purpose valve |
| CN201351738Y (en) * | 2008-12-30 | 2009-11-25 | 九江中船长安消防设备有限公司 | Valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN202451895U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Stop check valve |
| CN203892571U (en) * | 2014-04-14 | 2014-10-22 | 安徽正石新型建材有限公司 | Novel stop valve |
-
2014
- 2014-04-14 CN CN201410149290.6A patent/CN103953733B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720204Y (en) * | 2004-08-16 | 2005-08-24 | 浙江盾安华强机械有限公司 | Stopping non-return valve |
| CN201071938Y (en) * | 2007-07-26 | 2008-06-11 | 上海凯工阀门有限公司 | Dual-purpose valve |
| CN201351738Y (en) * | 2008-12-30 | 2009-11-25 | 九江中船长安消防设备有限公司 | Valve |
| CN202280884U (en) * | 2011-08-29 | 2012-06-20 | 江苏河海新能源有限公司 | Stop-check valve |
| CN202451895U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Stop check valve |
| CN203892571U (en) * | 2014-04-14 | 2014-10-22 | 安徽正石新型建材有限公司 | Novel stop valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641295A (en) * | 2015-10-28 | 2017-05-10 | 江苏海达船用阀业有限公司 | High-temperature-resisting check and stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953733B (en) | 2017-05-03 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Effective date of registration: 20180619 Address after: 241000 Anhui Anhui, Wuhu, Wuhu Anhui New Economic Development Zone Industrial Avenue 3399 (Anhui Zheng Shi new building materials Co., Ltd.) Patentee after: Anhui Gu Er Kang Pipe Industry Co., Ltd. Address before: 241100 3399 weft four road, new Wuyuan Industrial Park, Wuhu, Wuhu, Anhui Patentee before: ANHUI ZHENGSHI NEW BUILDING MATERIAL CO., LTD. |