CN202118267U - Stop valve structure - Google Patents
Stop valve structure Download PDFInfo
- Publication number
- CN202118267U CN202118267U CN 201120205646 CN201120205646U CN202118267U CN 202118267 U CN202118267 U CN 202118267U CN 201120205646 CN201120205646 CN 201120205646 CN 201120205646 U CN201120205646 U CN 201120205646U CN 202118267 U CN202118267 U CN 202118267U
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- CN
- China
- Prior art keywords
- valve
- rod
- stop valve
- stop
- flap
- 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 stop valve structure, which comprises a valve body. The valve body comprises a valve rod and a sealing ring. The stop valve structure is characterized in that the sealing ring is arranged on the upper portion of the valve body, the valve rod is arranged on the lower portion of the valve, a liquid inlet is arranged at one end of the valve rod, and a liquid outlet is arranged at the other end of the valve rod. A valve cover is arranged at the connecting position of the lower end face of the sealing ring, a connection rod is arranged on one side of the valve cover, a first corrugated pipe is arranged at one end of the connection rod, and a second corrugated pipe is arranged at the other end of the connection rod. The stop valve type structure is simple in structure and convenient to use, improves sealing performance of a stop valve, and effectively solves the problem of outward leakage, thereby achieving safety, and environment protection without fluid loss, reducing energy consumption and improving safety of factory equipment. Torque of the corrugated pipe sealing switch valve is smaller, and a locking device for the valve rod can avoid misoperation and is not easy to damage, thereby prolonging service life, saving labor cost, improving production efficiency and being high in flexibility and easy to popularize and use.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of stop valve type structure.
Background technique
Stop valve belongs to forced seal formula valve, so when valve closing, must exert pressure to flap, does not leak with forced seal face.When medium gets into valve by the flap below; The required resistance that overcomes of steering force is the frictional force of valve rod and filler with by the thrust that pressure produced of medium, the power that the force rate of closing valve is opened valve is big; So it is big that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can take place.In recent years, after occurring from self-packing valve, the MEDIA FLOW of stop valve gets into valve pocket to just changing by the flap top, and at this moment under the pressure medium effect, the power of closing valve is little, and it is big to open the power of valve, and the diameter of valve rod can correspondingly reduce.Simultaneously, under the medium effect, the valve of this form is also tighter.China's valve " three changes are given " is regulation once, and the flow direction of stop valve adopts from top to bottom without exception.This valve wants level to install.
The open-shut device of stop valve is the flap of stopper, and sealing surface is the plane or the conical surface, the center line moving linearly of flap longshore current body.The forms of motion of valve rod, (adopted name: dark bar), the rotation of up-down rod-type is arranged also, (adopted name: rising stem (RS.)) stop valve is meant the valve that closure member (flap) moves along the centre line.According to this mobile form of flap, the variation of valve seat port is and flap stroke relation in direct ratio.Because the valve rod of such valve is opened or shutoff stroke is shorter relatively, and have and cut off function very reliably, again because the variation of valve seat port and the stroke relation in direct ratio of flap are very suitable for the adjusting to flow.Therefore, such valve is suitable as cut-out or adjusting and throttling usefulness very much.
Yet existing stop valve exists many foots not, and 1. owing to adopt packing seal, its sealing is not high, after having used a period of time, occurs the situation of external leakage easily; 2. common stop valve leans on rotation hand wheel, valve rod is risen and descend drive flap do to be parallel to MEDIA FLOW to straight-line displacement reach the purpose of keying.The rotation in the direction of the clock of son wheel; Working medium is got into by square channel under the flap; At this moment, the active force sum that necessary specific pressure that this sealing force that applies must be equal to or greater than on the sealing surface to be produced and medium make progress, needed power is bigger when causing the On/Off valve; 3. be not suitable for the medium of big, the easy coking of band particle, density; 4. valve rod is corroded directly by fluid impact easily, damages.
The model utility content
The utility model provides a kind of stop valve type structure just in order to address the above problem, it can effectively solve in the existing technology, and sealing is not high, and Applicable scope is little, and it is not enough, simple in structure that valve rod is damaged etc. easily, and flexible operation promotes the Security of using.
The technical problem that the utility model requires to solve can realize through following technological scheme:
A kind of stop valve type structure comprises its valve body, and described valve body comprises valve rod, seal ring; It is characterized in that: the top of valve body is set to seal ring, and its underpart is set to valve rod, and an end of described valve rod is set to liquid entering hole; Its other end is set to liquid outlet, and the lower end surface connection part of seal ring is set to valve gap, and a side of valve gap is set to connecting rod; One end of said connecting rod is set to first bellows, and its other end is set to second bellows.
In an embodiment of the utility model, described first bellows and the parallel placement of second bellows.
The utility model is provided with the water conservancy diversion inclined-plane on the next door of said connecting rod, and its bottom is set to flap, and flap is fixedly connected with connecting rod.
In an embodiment of the utility model, described flap is cylindrical.
Owing to adopted technological scheme as above, the utility model beneficial effect is simple in structure, easy to use; Improve the sealing of stop valve, effectively solved the situation of external leakage, thereby reached safety and environmental protection; No fluid runs off, and cuts down the consumption of energy, and improves safety of factory equipment.Sylphon seal switch valve moment is less, and valve rod prevents misoperation with locking device, and is not easy to damage, and has promoted working life; Reduce maintenance frequency, alleviated working strength of workers, saved labour cost; Improved manufacturing efficiency, and flexibility is strong, is easy to promote the use of.
Description of drawings
Fig. 1 is the main TV structure schematic representation of a kind of stop valve type of the utility model structure.
Fig. 2 is the polycrystalline substance schematic representation of a kind of stop valve type of the utility model structure.
Fig. 3 is the perspective view of a kind of stop valve type of the utility model structure.
100-valve body among the figure, 110-valve rod, 120-first bellows, 130-seal ring, 140-flap, 150-second bellows, 160-valve gap, 170-water conservancy diversion inclined-plane, 180-liquid entering hole, 190-liquid outlet, 210-connecting rod.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, Fig. 2, a kind of stop valve type of Fig. 3 structure; Comprise its valve body 100, described valve body 100 comprises valve rod 110, seal ring 130, it is characterized in that: the top of valve body 100 is set to seal ring 130; Its underpart is set to valve rod 110, makes sealing effect reach the optimum state, and an end of described valve rod 110 is set to liquid entering hole 180; Its other end is set to liquid outlet 190, and the following connection part of seal ring 130 is set to valve gap 160, and a side of valve gap 160 is set to connecting rod 210; One end of said connecting rod 210 is set to first bellows 120, and its other end is set to second bellows 150, makes between flowing medium and atmosphere, to form a metallic barrier; Guarantee valve rod 210 zero leakages, promoted the Security of using.
In an embodiment of the utility model, described first bellows 120 and the 150 parallel placements of second bellows.
The utility model is provided with water conservancy diversion inclined-plane 170 on the next door of said connecting rod 210; Its bottom is set to flap 140, and flap 140 is fixedly connected with connecting rod 210, as auxiliary seal; On the basis of valve rod 110, still keep filler, more increased reliability and Security.
In an embodiment of the utility model, described flap 140 is cylindrical, is convenient to open and close, and does not allow the wearing and tearing that are subject to.
The beneficial effect of present embodiment is simple in structure, easy to use, has improved the sealing of stop valve, has effectively solved the situation of external leakage, thereby has reached safety and environmental protection, and no fluid runs off, and cuts down the consumption of energy, and improves safety of factory equipment.Sylphon seal switch valve moment is less, and valve rod prevents misoperation with locking device, and is not easy to damage, and has promoted working life; Reduce maintenance frequency, alleviated working strength of workers, saved labour cost; Improved manufacturing efficiency, and flexibility is strong, is easy to promote the use of.
More than show and described basic principle, major character and the advantage of the present invention of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. a stop valve type structure comprises its valve body, and described valve body comprises valve rod, seal ring; It is characterized in that: the top of valve body is set to seal ring, and its underpart is set to valve rod, and an end of described valve rod is set to liquid entering hole; Its other end is set to liquid outlet, and the lower end surface connection part of seal ring is set to valve gap, and a side of valve gap is set to connecting rod; One end of said connecting rod is set to first bellows, and its other end is set to second bellows.
2. a kind of stop valve type structure as claimed in claim 1 is characterized in that, described first bellows and the parallel placement of second bellows.
3. a kind of stop valve type structure as claimed in claim 1 is characterized in that the next door of said connecting rod is provided with the water conservancy diversion inclined-plane, and its bottom is set to flap, and flap is fixedly connected with connecting rod.
4. a kind of stop valve type structure as claimed in claim 3 is characterized in that described flap is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120205646 CN202118267U (en) | 2011-06-17 | 2011-06-17 | Stop valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120205646 CN202118267U (en) | 2011-06-17 | 2011-06-17 | Stop valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118267U true CN202118267U (en) | 2012-01-18 |
Family
ID=45459334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120205646 Expired - Fee Related CN202118267U (en) | 2011-06-17 | 2011-06-17 | Stop valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118267U (en) |
-
2011
- 2011-06-17 CN CN 201120205646 patent/CN202118267U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20130617 |