CN204284553U - A kind of novel stop check valve - Google Patents
A kind of novel stop check valve Download PDFInfo
- Publication number
- CN204284553U CN204284553U CN201420624087.5U CN201420624087U CN204284553U CN 204284553 U CN204284553 U CN 204284553U CN 201420624087 U CN201420624087 U CN 201420624087U CN 204284553 U CN204284553 U CN 204284553U
- Authority
- CN
- China
- Prior art keywords
- valve
- fixed block
- annulus
- disc
- valve disc
- 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
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to a kind of novel stop check valve, comprise valve rod, fixed block and lock washer, fixed block is connected with valve disc by screw thread, between fixed block and valve disc, install clamping rings, and make the height of annulus identical with the lift of valve rod, namely obtain screw down nonreturn valve.Screw down nonreturn valve comprises valve rod, fixed block and lock washer, and described fixed block is connected with valve disc by screw thread, is mounted with annulus between fixed block and valve disc, and the height of annulus is identical with the lift of valve rod.Relative to prior art, the utility model provides a kind of method stop valve being repacked into screw down nonreturn valve, and the valve member that can reduce shipyard overstocks, and improves the utilization ratio of valve member.Novel stop check valve, compact structure, easy to process, and cost of production is less, and sealing effect is good, easy to use.
Description
Technical field
The utility model relates to valve technology field, especially a kind of novel stop check valve.
Background technique
Current shipyard is in shipbuilding process, and the valve member specification quantity revised on the valve member and ship causing having purchased needed for reality due to later stage a variety of causes is inconsistent.General solution continues to purchase the valve member increased because of amendment, purchased but ship do not needed the valve member installed then overstock in warehouse.So just cause the wasting of resources, add shipbuilding cost.
Model utility content
For above situation, overstock for reducing valve member, increase the utilization ratio of valve member, the purpose of this utility model is to provide a kind of method stop valve being repacked into screw down nonreturn valve, and novel stop check valve.
The purpose of this utility model is achieved by the following technical solution:
Novel stop check valve, comprises valve rod, fixed block and lock washer, and described fixed block is connected with valve disc by screw thread, is mounted with annulus between fixed block and valve disc, and the height of described annulus is identical with the lift of valve rod.
As optimal technical scheme of the present utility model, the outer surface of described annulus is set to regular hexagon, and the internal surface of annulus is provided with screw thread, and annulus to be connected with fixed block by screw thread and to fix.
As optimal technical scheme of the present utility model, between described annulus and fixed block, be provided with lock washer.
As optimal technical scheme of the present utility model, between described annulus and valve disc, be provided with lock washer.
The beneficial effects of the utility model are: relative to prior art, and the utility model provides a kind of method stop valve being repacked into screw down nonreturn valve, and the valve member that can reduce shipyard overstocks, and improve the utilization ratio of valve member.Novel stop check valve, compact structure, easy to process, and cost of production is less, and sealing effect is good, easy to use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
Fig. 1 is the internal structure schematic diagram of the utility model stop valve;
Fig. 2 is the schematic diagram that the utility model valve rod convex shoulder moves at the inner endpoint location of valve disc;
Fig. 3 is the schematic diagram that the utility model valve rod convex shoulder moves at valve disc another endpoint location inner.
Embodiment
Fig. 1 is stop valve cut-away view, novel stop check valve, and stop valve mainly comprises valve rod 1, fixed block 2, lock washer 3 and valve disc 4 etc.As shown in Figure 2, spacing d can be produced between with the relative position of valve disc 4 by regulating the fixed block 2 be threaded, between valve disc interior fixtures 2 and valve disc 4, also there is a certain distance d equally, thus valve stem end convex shoulder can in valve disc length be d scope in move freely.
Fig. 2 and Fig. 3 is the valve rod convex shoulder mobile schematic diagram at inner two endpoint locations of valve disc respectively, makes d keep identical with valve rod lift L, can ensure that valve disc is not raised all the time by the size of threaded adjustment d.Between fixed block 2 with valve disc 4 length of installation be d, inside have screw thread with outside become the annulus 5 of regular hexagon, annulus 5 and lock washer 3 can stop fixed block 2 and the relative movement of valve disc 4, prevent valve disc loosening.Namely such stop valve has been repacked into screw down nonreturn valve.
As shown in Figure 3, novel stop check valve, comprises valve rod 1, fixed block 2 and lock washer 3, and described fixed block 2 is connected with valve disc 4 by screw thread, is mounted with annulus 5 between fixed block 2 and valve disc 4, and the height of described annulus 5 is identical with the lift of valve rod 1.
The outer surface of described annulus 5 is set to regular hexagon, and the internal surface of annulus 5 is provided with screw thread, and annulus 5 to be connected with fixed block 2 by screw thread and to fix.Be provided with lock washer 3 between described annulus 5 and fixed block 2, between annulus 5 and valve disc 4, be also provided with lock washer 3.
Through checking after screw down nonreturn valve installation after repacking: when handwheel dextrorotation rotating valve rod declines, valve rod can withstand valve disc and force it to be tightly pressed on valve seat, now plays the effect of stop valve.When handwheel rotates counterclockwise valve rod rising and arrives peak, i.e. valve opening amount maximum point, valve disc is not mentioned all the time thereupon.Only have when the active force of working medium below valve disc is greater than the active force above valve disc, valve disc could rise.When working medium refluxes, valve disc is throttle down on automatic fall-back to valve seat then, now plays the effect of safety check, thus meets the requirement of screw down nonreturn valve.
Claims (4)
1. a novel stop check valve, it is characterized in that: described screw down nonreturn valve comprises valve rod (1), fixed block (2) and lock washer (3), described fixed block (2) is connected with valve disc (4) by screw thread, be mounted with annulus (5) between fixed block (2) and valve disc (4), the height of described annulus (5) is identical with the lift of valve rod (1).
2. novel stop check valve according to claim 1, it is characterized in that: the outer surface of described annulus (5) is set to regular hexagon, the internal surface of annulus (5) is provided with screw thread, and annulus (5) is connected by screw thread with fixed block (2) and fixes.
3. novel stop check valve according to claim 1 and 2, is characterized in that: be provided with lock washer (3) between described annulus (5) and fixed block (2).
4. novel stop check valve according to claim 1 and 2, is characterized in that: be provided with lock washer (3) between described annulus (5) and valve disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624087.5U CN204284553U (en) | 2014-10-26 | 2014-10-26 | A kind of novel stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624087.5U CN204284553U (en) | 2014-10-26 | 2014-10-26 | A kind of novel stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284553U true CN204284553U (en) | 2015-04-22 |
Family
ID=52867714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420624087.5U Expired - Fee Related CN204284553U (en) | 2014-10-26 | 2014-10-26 | A kind of novel stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
-
2014
- 2014-10-26 CN CN201420624087.5U patent/CN204284553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |