CN201875275U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN201875275U CN201875275U CN2010206027698U CN201020602769U CN201875275U CN 201875275 U CN201875275 U CN 201875275U CN 2010206027698 U CN2010206027698 U CN 2010206027698U CN 201020602769 U CN201020602769 U CN 201020602769U CN 201875275 U CN201875275 U CN 201875275U
- Authority
- CN
- China
- Prior art keywords
- valve
- seal closure
- bellows
- stop valve
- corrugated pipe
- 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
Images
Landscapes
- Details Of Valves (AREA)
Abstract
A corrugated pipe stop valve comprises a valve body and a valve cover. The valve cover is detachably fixed above the valve body, a corrugated pipe is arranged at the joint of the valve body and the valve cover, the valve body is provided with a valve stem, the corrugated pipe is fixed on the valve stem, a sealing cover is fixedly connected to the corrugated pipe, and the outer wall of the sealing cover is matched with the inner wall of the valve cover. The sealing cover matched with an inner wall structure of the valve cover is welded above the corrugated pipe, so that adaptable range of the stop valve is expanded. Simultaneously, the sealing cover can be formed in a batch pressing process, and accordingly production cost is reduced.
Description
Technical field
The utility model relates to a kind of bellows stop valve, is specifically related to a kind of bellows stop valve with seal closure.
Background technique
Stop valve with its in the switching process between the sealing surface frictional force less, more durable, Lift is little, and is easy to manufacture, easy to maintenance and be applicable to that the characteristics such as demand of different pressures are widely used in industrial production.
Stop valve is by the position of regulating valve stem control flap, conventional filler stop valve medium flows in the valve gap that can overflow behind the valve body into, medium is directly faced the packing seal of valve gap, in order to reach the sealing effect of valve stem part, normally increase packed height and impacting force, and just make that the keying moment of valve is bigger than normal like this.Bellows stop valve on the market is welded seal plates above bellows all generally.Because the unstability of the pressure of medium self and flow velocity, flow causes the pressure of liquid effects on sealing plate not wait, when pressure is big, sealing plate thickness can increase accordingly, thereby increased user cost.
In addition, sealing plate thickness thicker relatively, and need machine tooling, so be unfavorable for producing in batches.
The model utility content
For solving existing bellows stop valve user cost than problems such as height, the utility model discloses a kind of bellows stop valve, to reach the pressure that bears that reduces seal arrangement, reduce the purpose of user cost.
The technical solution of the utility model is as follows:
A kind of bellows stop valve comprises valve body, and dismountable valve gap that is fixed in described valve body top, and the joint of described valve body and described valve gap is provided with bellows; Also be provided with valve rod on the described valve body, described bellows fixing with described valve rod on; Be fixedly connected with a seal closure on the described bellows, the outer wall of described seal closure and the inwall of described valve gap are complementary.
Preferably, the inwall of described seal closure is provided with projection.
Preferably, curl in the edge of described seal closure.
The disclosed bellows stop valve of the utility model, by above bellows, welding the seal closure that is complementary with the valve gap interior wall construction, medium can be delivered on the valve gap effectively to the pressure that seal closure produces in process of flowing, reduced the damage of medium to seal closure, be applicable to different pressure requirements, enlarge the using scope of bellows stop valve, reduced user cost simultaneously.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of bellows stop valve of the utility model;
Fig. 2 is the structural representation of seal closure embodiment 1 in the disclosed a kind of bellows stop valve of the utility model;
Fig. 3 is the structural representation of seal closure embodiment 2 in the disclosed a kind of bellows stop valve of the utility model.
The title of the corresponding part of numeral or alphabetical representative among the figure:
11, valve body 12, valve gap 13, valve rod 14, flap 15, bellows 16, seal closure 17, handwheel 31, projection
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of bellows stop valve,, the pressure that seal closure is produced of medium is delivered on the valve gap effectively, enlarged the Applicable scope of seal closure, reduced user cost by welded seal cover on the bellows of valve inner.
Be illustrated in figure 1 as the structural representation of the disclosed a kind of bellows stop valve of the utility model, comprise valve body 11, valve body 11 tops are connected with valve gap 12 by bolt, also be provided with valve rod 13 on the valve body 11, the top of valve rod 13 is provided with handwheel 17, and the bottom of valve rod 13 is connected with flap 14, by rotating handwheel 17, the screw-in depth of regulating valve stem 13, the open and close that come control valve.
Valve body 11 is provided with bellows 15 with the joint of valve gap 12, bellows 15 is welded on the valve rod 13, the top of bellows 15 is covered with seal closure 16, seal closure 16 and bellows 15 welding, the inwall of the outer wall of seal closure 16 and valve gap 12 is complementary, assurance seal closure 16 is fitted effectively with valve gap 12, and medium is passed to valve gap 12 effectively to seal closure 16 applied pressures.Reduce the impact of medium, be applicable to the demand of different pressures, enlarged the using scope of stop valve seal closure 16.
Embodiment 1, and as shown in Figure 2, the structure of seal closure 16 is identical with the structure of valve gap 12 inwalls, the two ends of seal closure 16 are provided with crimping, and the joint of crimping and valve body 11 is provided with elastic material, as: Expanded graphite cushion block etc., by compressing elastic material, guarantee seal closure 16 and 11 sealings of valve body.
Embodiment 2, as shown in Figure 3, all the other are identical with embodiment 1, difference is, the inwall of seal closure 16 is provided with projection 31, MEDIA FLOW through the time, the impact of 31 pairs of media of projection is played must buffer function, reduce the infringement that seal closure 16 caused owing to reasons such as flow velocitys, guaranteed the working life of seal closure 16.Shape, quantity and the size of projection all are determined on a case-by-case basis, and do not limit at this.
The disclosed bellows stop valve of the utility model, by above bellows, welding the seal closure that is complementary with the valve gap interior wall construction, medium can be delivered on the valve gap effectively to the pressure that seal closure produces in process of flowing, reduced the damage of medium to seal closure, be applicable to different pressure requirements, enlarged the using scope of bellows stop valve, seal closure can form by suppressing in batches simultaneously, has reduced cost of production.
In addition, on the inwall of seal closure, projection is set, reduced MEDIA FLOW through the time impact that seal closure is produced, guaranteed working life of seal closure.
More than be description,, make related domain professional and technical personnel can realize or use the utility model by above-mentioned explanation to the disclosed embodiments to the utility model embodiment.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. a bellows stop valve comprises valve body, and dismountable valve gap that is fixed in described valve body top, and the joint of described valve body and described valve gap is provided with bellows; Also be provided with valve rod on the described valve body, described bellows fixing with described valve rod on; It is characterized in that be fixedly connected with a seal closure on the described bellows, the outer wall of described seal closure and the inwall of described valve gap are complementary.
2. bellows stop valve according to claim 1 is characterized in that the inwall of described seal closure is provided with projection.
3. bellows stop valve according to claim 1 is characterized in that, curls in the edge of described seal closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206027698U CN201875275U (en) | 2010-11-11 | 2010-11-11 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206027698U CN201875275U (en) | 2010-11-11 | 2010-11-11 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875275U true CN201875275U (en) | 2011-06-22 |
Family
ID=44163192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206027698U Expired - Fee Related CN201875275U (en) | 2010-11-11 | 2010-11-11 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875275U (en) |
-
2010
- 2010-11-11 CN CN2010206027698U patent/CN201875275U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813192A (en) | High-flow adjustable ratio control valve | |
| CN201875275U (en) | Corrugated pipe stop valve | |
| CN202451859U (en) | High temperature and pressure middle flange seal valve | |
| CN201772971U (en) | Pressure gauge isolator | |
| CN202768868U (en) | Protection-type soft seal valve core structure | |
| CN204878769U (en) | High pressure gas piping butterfly valve | |
| CN205715744U (en) | A kind of electric sleeve barrel regulation valve | |
| CN201827385U (en) | Vacuum manual all-metal valve | |
| CN201723732U (en) | High-pressure angle type flow passage multipurpose valve | |
| CN201875187U (en) | Ball valve seat | |
| CN206130146U (en) | Bronze stop valve | |
| CN206190934U (en) | Multi -functional super high pressure isolating valve | |
| CN202884235U (en) | Draw-bar packing gate valve | |
| CN207178183U (en) | A kind of hydraulic devices | |
| CN216843134U (en) | Durable stop valve capable of controlling balance pressure difference | |
| CN201386803Y (en) | Special butterfly valve for dust coal gas | |
| CN206017742U (en) | A kind of many sealing type stop valves | |
| CN203051782U (en) | Leakproof chlorine gas cut-off valve | |
| CN204692607U (en) | Oval sealing surface Bidirectional pressure butterfly valve | |
| CN202302274U (en) | Sealing mechanism of valve rod and valve body | |
| CN201236958Y (en) | Stop cock | |
| CN204004396U (en) | A kind of soft seal device with outer hard position limit cycle | |
| CN204828681U (en) | Cooling right -angle type stop valve of industry | |
| CN203868378U (en) | Supercritical cascading anti-clamping valve for CO2 | |
| CN211901612U (en) | Welding type hard sealing butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |