CN202327147U - Durable high pressure switch valve - Google Patents
Durable high pressure switch valve Download PDFInfo
- Publication number
- CN202327147U CN202327147U CN2011204255162U CN201120425516U CN202327147U CN 202327147 U CN202327147 U CN 202327147U CN 2011204255162 U CN2011204255162 U CN 2011204255162U CN 201120425516 U CN201120425516 U CN 201120425516U CN 202327147 U CN202327147 U CN 202327147U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- high pressure
- pressure switch
- valve rod
- 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
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Abstract
The utility model discloses a durable high pressure switch valve comprising a valve body, a valve seat welded at the lower part of the valve body, a valve cover connected with the upper part of the valve body, a guide sleeve connected below the valve cover, a sleeve positioned in the guide sleeve, a valve rod passing through the sleeve, a big valve clack connected below the sleeve and a small valve clack between the valve rod and the big valve clack. The valve rod and the small valve clack are an integral component and the diameter of section of the small valve clack is larger than that of the valve rod. In the durable high pressure switch valve disclosed by the utility model, the valve rod and the small valve clack are designed as an integral assembly, thereby reducing the processing and manufacturing difficulty of the valve rod and the small valve clack, achieving better connecting stability and avoiding the detaching of the valve rod and the small valve clack in use. Meanwhile, the improved sleeve structure can avoid jamming during movement of the valve clacks. The durable high pressure switch valve disclosed by the utility model has the advantages of reasonable structural design and outstanding durable performance.
Description
Technical field
The utility model relates to a kind of switch valve, particularly relates to a kind of durable type high pressure switch valve.
Background technique
The high pressure switch valve is mainly used in thermal motor and organizes on the subsequent use steam tube of boiler feed pump turbine air inlet high pressure, plays the effect that high-tension apparatus is inserted the water pump steam turbine with steam safety.Little flap in the valve body can move under the drive of hydraulic jack, and the applying that drives big valve flap and valve base sealing is finished the work with separating.Therefore the connective stability of flap assembly is most important, directly influences the working life of valve.
The main structure and the shortcoming of valve are at present: A, little flap and valve rod are split type; Be to connect through ball; Therefore because ball is less,, causes error easily and make valve rod from little flap, come off out at the processing valve rod during with ball grooves that little flap is connected; B, guiding groove are opened in the guiding position of guide sleeve, cause flap bite at the volley easily, and guider screw must aligning direction when installing, and when the welding guider screw, are prone to stay the overlap layer and also can produce bite to the motion of flap.
The model utility content
The utility model technical problem to be solved provides the durable type high pressure switch valve of a kind of reasonable in design, long service life.
In order to solve the problems of the technologies described above; The utility model adopts following technological scheme: a kind of durable type high pressure switch valve; Comprise valve body, be welded on valve body lower portion valve seat, be connected valve body top valve gap, be connected valve gap below guide sleeve, the sleeve in guide sleeve, pass sleeve valve rod, be connected big valve flap and the little flap between valve rod and big valve flap below the sleeve; Said valve rod and little flap are whole assembly, and little flap cross-sectional diameter is greater than the valve rod cross-sectional diameter.
As preferably, said lower cartridge external cylindrical surface upper edge axis offers guiding groove.
As preferably, spaced apartly on the said upper cartridge external cylindrical surface be provided with a plurality of ring-type gas guide grooves.
As preferably, said valve seat bottom is welded on the body cavity.
As preferably, spaced apartly on the said valve seat inside and outside circle cylinder be provided with a plurality of ring-types distortion grooves.
A kind of durable type high pressure of the utility model switch valve is a whole assembly with valve rod and little flap design, has so both reduced valve rod and little flap manufacturing difficulty, makes that again its connective stability is better, has avoided valve rod and the little flap in the using process to come off; Simultaneously, the tube-in-tube structure after the improvement can be avoided the bite in the flap movement process.A kind of durable type high pressure of the utility model switch valve, reasonable in design, durability is outstanding.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Fig. 1 is the structural representation of a kind of durable type high pressure of the utility model switch valve.
Wherein, reference character: 1 is valve body, and 2 is valve seat, and 3 is valve gap, and 4 is guide sleeve, and 5 is sleeve, and 6 is valve rod, and 7 is big valve flap, and 8 is little flap, and 9 is the guiding groove on the sleeve, and 10 is the gas guide groove on the sleeve, and 11 is the distortion groove on the valve seat, and 12 is guider screw.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1; A kind of durable type high pressure of the utility model switch valve; Comprise valve body 1, be welded on valve body lower portion valve seat 2, be connected valve body top valve gap 3, be connected valve gap below guide sleeve 4, the sleeve in guide sleeve 5, pass sleeve valve rod 6, be connected big valve flap 7 and the little flap 8 between valve rod and big valve flap below the sleeve; Its valve rod 6 is a whole assembly with little flap 8, and little flap 8 cross-sectional diameters are greater than valve rod 6 cross-sectional diameters.During work, big valve flap 7 cooperates the formation ball face sealing with valve seat 2, and the little flap of integrated type is the linear sealing structure; Move earlier on the little flap 8 when moving on the valve rod 6 and move certain stroke, through moving on the little flap 8 pulling sleeves 5, open again thereby drive big valve flap 7 by sleeve 5.
As shown in Figure 1, in a kind of durable type high pressure of the utility model switch valve, external cylindrical surface upper edge, sleeve 5 bottom axis offers guiding groove 9, forms with guider screw on the guide sleeve 4 to cooperate.Spaced apartly on the sleeve 5 top external cylindrical surfaces be provided with a plurality of ring-type gas guide grooves 10.Valve seat 2 bottoms are welded on valve body 1 inner chamber, and this welding manner both can reduce the influence of welding deformation to sealing surface, and the material that can reduce valve seat again uses.In order further to prevent the influence of welding deformation, can on valve seat 2 inside and outside circle cylinders, offer a plurality of ring-type distortion grooves 11 at interval to sealing surface.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. durable type high pressure switch valve; Comprise valve body (1), be welded on the valve seat (2) of valve body lower portion, the valve gap (3) that is connected valve body top, the guide sleeve (4) that is connected the valve gap below, the sleeve (5) that is positioned at guide sleeve, the valve rod (6) that passes sleeve, the big valve flap (7) that is connected the sleeve below and the little flap (8) between valve rod and big valve flap; It is characterized in that: said valve rod (6) is a whole assembly with little flap (8), and little flap (8) cross-sectional diameter is greater than valve rod (6) cross-sectional diameter.
2. a kind of durable type high pressure switch valve according to claim 1 is characterized in that: external cylindrical surface upper edge, said sleeve (5) bottom axis offers guiding groove (9).
3. a kind of durable type high pressure switch valve according to claim 1 and 2 is characterized in that: the spaced apart a plurality of ring-type gas guide grooves (10) that are provided with on the external cylindrical surface of said sleeve (5) top.
4. a kind of durable type high pressure switch valve according to claim 1 is characterized in that: said valve seat (2) bottom is welded on valve body (1) inner chamber.
5. according to claim 1 or 4 described a kind of durable type high pressure switch valves, it is characterized in that: the spaced apart a plurality of ring-types distortion grooves (11) that are provided with on said valve seat (2) the inside and outside circle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204255162U CN202327147U (en) | 2011-11-01 | 2011-11-01 | Durable high pressure switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204255162U CN202327147U (en) | 2011-11-01 | 2011-11-01 | Durable high pressure switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327147U true CN202327147U (en) | 2012-07-11 |
Family
ID=46439126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204255162U Expired - Fee Related CN202327147U (en) | 2011-11-01 | 2011-11-01 | Durable high pressure switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878303A (en) * | 2012-09-26 | 2013-01-16 | 宁波恒业制冷配件有限公司 | Sealing valve |
-
2011
- 2011-11-01 CN CN2011204255162U patent/CN202327147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878303A (en) * | 2012-09-26 | 2013-01-16 | 宁波恒业制冷配件有限公司 | Sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Durable high pressure switch valve Effective date of registration: 20170125 Granted publication date: 20120711 Pledgee: The Great Wall West Bank Bank of China Deyang hi tech branch Pledgor: Sichuan Naite Valve Co., Ltd. Registration number: 2017990000081 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20171101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |