CN204300398U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
- Publication number
- CN204300398U CN204300398U CN201420719279.4U CN201420719279U CN204300398U CN 204300398 U CN204300398 U CN 204300398U CN 201420719279 U CN201420719279 U CN 201420719279U CN 204300398 U CN204300398 U CN 204300398U
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- straight tube
- valve
- spool
- cylindrical body
- plane section
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Abstract
The utility model provides a kind of stop valve, comprise valve body, valve rod, spool and handle, described valve body comprises liquid inlet pipe and drain pipe, described drain pipe bending is arranged, be made up of the first straight tube and the second straight tube, liquid inlet pipe and the second straight tube are in same level, and relative second straight tube of the first straight tube is obliquely installed; Described valve rod one end is connected with described handle, and the other end of described valve rod is connected with described spool, and described valve rod can move up and down in the valve stem passage of described valve body, and for being communicated with or blocking liquid inlet pipe and drain pipe, the first straight tube is communicated with valve stem passage; The synapsis that offsets of described valve body and described spool is provided with the spool layer of annular.Conflict place at valve body and spool of the present utility model is provided with spool layer, favorable sealing property, the problem of leak of liquid when effectively avoiding closed between valve seat and spool.
Description
Technical field
The utility model relates to valve field, particularly a kind of stop valve.
Background technique
The open-shut device of stop valve is the flap of stopper, and in plane or the extra large conical surface above sealing, flap is along the center line moving linearly of valve seat.The sports of valve rod (adopted name: dark bar) is lifting rotation rod-type, can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Valve rod due to such valve open or shutoff stroke relatively short, and there is cutting function very reliably, again due to the change of valve seat port and the stroke direct proportionality of flap, be very suitable for the adjustment to flow.
It is bad that most stop valves on existing market all also exist sealing, has the drawback of leakage, can cause very large inconvenience like this, cause damage, affect working efficiency to user after closed between valve seat and flap; In addition, conflict place of valve seat and flap is owing to will bear larger pressure, and Sealing therebetween easily damages, thus causes leakage.
Model utility content
The utility model provides a kind of stop valve, solves the problem that the bad and Sealing of existing stop valve sealability easily weares and teares.
The technical solution of the utility model is achieved in that
A kind of stop valve, comprise valve body, valve rod, spool and handle, described valve body comprises liquid inlet pipe and drain pipe, described drain pipe bending is arranged, be made up of the first straight tube and the second straight tube, liquid inlet pipe and the second straight tube are in same level, and relative second straight tube of the first straight tube is obliquely installed; Described valve rod one end is connected with described handle, and the other end of described valve rod is connected with described spool, and described valve rod can move up and down in the valve stem passage of described valve body, and for being communicated with or blocking liquid inlet pipe and drain pipe, the first straight tube is communicated with valve stem passage; The synapsis that offsets of described valve body and described spool is provided with the spool layer of annular.
Wherein, preferably, described spool comprises the first cylindrical body, the second cylindrical body, the first plane section cylindrical body, the second plane section cylindrical body, the 3rd plane section cylindrical body and the ball-crown body that are connected in turn and forms, first plane section cylindrical body, the second plane section cylindrical body and the 3rd plane section cylindrical body form grouping teaching, and the curved surface of ball-crown body forms drainage face.
Wherein, preferably, the described second cylindrical side of plane section and described spool layer inconsistent.
Wherein, preferably, the angle that relatively described second straight tube of described first straight tube tilts is 45 ~ 60 °.
Wherein, preferably, also comprise the thin-walled guide pin bushing be made up of filler, be set in the valve stem passage of described valve body.
Wherein, preferably, the top of described thin-walled guide pin bushing is provided with Stem Mut, and Stem Mut and described thin-walled guide pin bushing form valve stem passage jointly.
Wherein, preferably, be arranged with nut outside described Stem Mut, nut is fixedly connected with described valve body.
Wherein, preferably, described nut is also arranged with locknut.
The beneficial effects of the utility model:
1. Sealing of the present utility model is spool layer, and compared with the material of valve body, hardness is comparatively large, farthest can extend the working life of stop valve.
2. the second cylindrical side of plane section of the utility model spool and spool layer inconsistent, after using if long-time, spool layer or the wearing and tearing of the second plane section cylindrical body, valve rod can move down above, by the first plane section cylindrical sides and spool layer inconsistent, further avoid the leakage problem of stop valve.
3. drain pipe of the present utility model bending is arranged, and makes intake pipe and the certain pressure reduction of outlet pipe abbot, the blocking-up being beneficial to liquid be communicated with.
4. the utility model is arranged with nut above valve body, then uses nut-locking, and structure is simple, easy for installation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, 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 utility model embodiment stop valve structure schematic diagram;
Fig. 2 is A portion partial enlarged drawing in Fig. 1.
In figure, 1. valve body, 2. valve rod, 3. spool, 31. first cylindrical bodys, 32. second cylindrical bodys, 33. first plane section cylindrical bodys, 34. second plane section cylindrical bodys, 35. the 3rd plane section cylindrical bodys, 36. ball-crown bodies, 4. handle, 5. liquid inlet pipe, 6. drain pipe, 61. first straight tubes, 62. second straight tubes, 7. spool layer, 8. thin-walled guide pin bushing, 9. Stem Mut, 10. nut, 11. locknuts
Embodiment
Be clearly and completely described the technological scheme in the utility model embodiment below, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, the present embodiment provides a kind of stop valve, comprise valve body 1, valve rod 2, spool 3 and handle, valve body 1 comprises liquid inlet pipe 5 and drain pipe 6, drain pipe 6 bends and arranges, be made up of the first straight tube 61 and the second straight tube 62, liquid inlet pipe 5 and the second straight tube 62 are in same level, and relative second straight tube 62 of the first straight tube 61 is obliquely installed; Valve rod 2 one end is connected with handle, and the other end of valve rod 2 is connected with spool 3, and valve rod 2 can move up and down in the valve stem passage of valve body 1, is communicated with valve stem passage for being communicated with or blocking liquid inlet pipe 5 and drain pipe 6, first straight tube 61; Valve body 1 is provided with the spool layer 7 of annular with the synapsis that offsets of spool 3.Valve body 1 is provided with spool layer 7 with conflict place of spool 3, be in order to valve body 1 and spool 3 are better fitted on the one hand, ensure sealing therebetween, spool layer 7 is compared with the material of valve body 1 on the other hand, hardness is comparatively large, farthest can extend the working life of stop valve.
Wherein, spool 3 comprises the first cylindrical body 31, second cylindrical body 32, first plane section cylindrical body 33, the second plane section cylindrical body 34, the 3rd plane section cylindrical body 35 and the ball-crown body 36 that are connected in turn and forms, first plane section cylindrical body 33, second plane section cylindrical body 34 and the 3rd plane section cylindrical body 35 form grouping teaching, and the curved surface of ball-crown body 36 forms drainage face.When coming in medium liquid inlet pipe 5 road, directly can impact drainage face, utilizing arc surface, medium is disperseed, being dispersed on grouping teaching, refluxing along grouping teaching, serve decomposition spool 3 and receive impact force problem, serve certain resistance to compression effect.
As the preferred technological scheme of the utility model, side and the spool layer 7 of the second plane section cylindrical body 34 are inconsistent.After using if long-time, spool layer 7 or the second plane section cylindrical body 34 wear and tear, and valve rod 2 can move down above, by the first plane section cylindrical body 33 side and spool 3 layer inconsistent, further avoid the leakage problem of stop valve.
Wherein, the angle that relative second straight tube 62 of the first straight tube 61 tilts is 45 °.In the utility model, the angle that relative second straight tube 62 of the first straight tube 61 tilts is 45 ~ 60 °, ensures that liquid inlet pipe 5 and drain pipe 6 exist certain pressure reduction with this.
Wherein, also comprise the thin-walled guide pin bushing 8 be made up of filler, be set in the valve stem passage of valve body 1.The top of thin-walled guide pin bushing 8 is provided with Stem Mut 9, and Stem Mut 9 and thin-walled guide pin bushing 8 form valve stem passage jointly.Moving up and down that thin-walled guide pin bushing 8 one aspect is valve rod 2 provides guiding circulation passage, and another ensures the sealing on valve body 1 top.
As the preferred technological scheme of the utility model, be arranged with nut 10 outside Stem Mut 9, nut 10 is fixedly connected with valve body 1, and nut 10 is also arranged with locknut 11.This structure is simple, and installation and repairing is all very convenient.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a stop valve, comprise valve body, valve rod, spool and handle, described valve body comprises liquid inlet pipe and drain pipe, it is characterized in that: described drain pipe bending is arranged, be made up of the first straight tube and the second straight tube, liquid inlet pipe and the second straight tube are in same level, and relative second straight tube of the first straight tube is obliquely installed; Described valve rod one end is connected with described handle, and the other end of described valve rod is connected with described spool, and described valve rod can move up and down in the valve stem passage of described valve body, and for being communicated with or blocking liquid inlet pipe and drain pipe, the first straight tube is communicated with valve stem passage; The synapsis that offsets of described valve body and described spool is provided with the spool layer of annular.
2. a kind of stop valve according to claim 1, it is characterized in that: described spool comprises the first cylindrical body, the second cylindrical body, the first plane section cylindrical body, the second plane section cylindrical body, the 3rd plane section cylindrical body and the ball-crown body that are connected in turn and forms, first plane section cylindrical body, the second plane section cylindrical body and the 3rd plane section cylindrical body form grouping teaching, and the curved surface of ball-crown body forms drainage face.
3. a kind of stop valve according to claim 2, is characterized in that: the described second cylindrical side of plane section and described spool layer inconsistent.
4. a kind of stop valve according to claim 1, is characterized in that: the angle that relatively described second straight tube of described first straight tube tilts is 45 ~ 60 °.
5. a kind of stop valve according to claim 1, is characterized in that: also comprise the thin-walled guide pin bushing be made up of filler, be set in the valve stem passage of described valve body.
6. a kind of stop valve according to claim 5, is characterized in that: the top of described thin-walled guide pin bushing is provided with Stem Mut, and Stem Mut and described thin-walled guide pin bushing form valve stem passage jointly.
7. a kind of stop valve according to claim 6, it is characterized in that: be arranged with nut outside described Stem Mut, nut is fixedly connected with described valve body.
8. a kind of stop valve according to claim 7, is characterized in that: described nut is also arranged with locknut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719279.4U CN204300398U (en) | 2014-11-25 | 2014-11-25 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719279.4U CN204300398U (en) | 2014-11-25 | 2014-11-25 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300398U true CN204300398U (en) | 2015-04-29 |
Family
ID=53105939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719279.4U Active CN204300398U (en) | 2014-11-25 | 2014-11-25 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020411A (en) * | 2015-06-10 | 2015-11-04 | 许炎章 | Small-specification stop valve for refrigeration device |
-
2014
- 2014-11-25 CN CN201420719279.4U patent/CN204300398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020411A (en) * | 2015-06-10 | 2015-11-04 | 许炎章 | Small-specification stop valve for refrigeration device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |