CN203082239U - Novel stop valve sealing structure - Google Patents
Novel stop valve sealing structure Download PDFInfo
- Publication number
- CN203082239U CN203082239U CN 201320049450 CN201320049450U CN203082239U CN 203082239 U CN203082239 U CN 203082239U CN 201320049450 CN201320049450 CN 201320049450 CN 201320049450 U CN201320049450 U CN 201320049450U CN 203082239 U CN203082239 U CN 203082239U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- hole
- sealed
- sealing structure
- 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 novel stop valve sealing structure which comprises a valve clack provided with center through holes matched with a valve rod. The center through holes are formed by an upper hole and a lower hole, wherein the diameter of the upper hole is larger than that of the lower hole, the upper hole is matched with the front end portion of the valve rod, the lower hole is matched with a frustum of the front end portion of the valve rod, a first valve clack sealing portion used for sealing the valve rod is arranged in the valve clack, and a second valve clack sealing portion used for sealing a valve seat is arranged at the bottom of the valve clack. The novel stop valve sealing structure is reasonable in design, material-saving, convenient to install, capable of effectively reducing impact force on the valve clack, and good in sealing effect, and the service life of a stop valve is prolonged.
Description
Technical field
The utility model relates to a kind of stop valve parts, is specifically related to a kind of stop valve novel sealing structure.
Background technique
Stop valve is a kind of General valve that is widely used in industries such as chemical industry, pharmacy, electric power and metallurgy.Stop valve is meant the valve that flap moves along the valve seat center line, flap is along the center line moving linearly of valve seat, 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, be very suitable for the adjusting to flow, therefore, such stop valve valve is suitable as cut-out or adjusting and throttling and uses very much.
In the middle of existing stop valve, the structure of sealing is in certain defective.For example can not guarantee the performance that seals with single flap, sealability is not good, does not guarantee the optimum efficiency of sealing.Though and for example use the bivalve lobe can guarantee sealing effect, improved the cost cost of valve itself, also increased the impact force of flap and valve seal, shortened the working life of valve.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of can reduce impact force that flap is subjected to, can prolong the valve stop valve novel sealing structure in working life.
For solving the problems of the technologies described above,, the technical solution adopted in the utility model is:
The stop valve novel sealing structure, comprise flap, described flap has the central through bore with the sealed valve stem coupling, described central through bore is made up of last hole and following hole, the described diameter of going up the diameter in hole greater than following hole, the front end of last hole and sealed valve stem matches, and the frustum of described hole down and sealed valve stem front end matches, be provided with the first flap sealed department of sealed valve stem in the described flap, described flap bottom is provided with the second flap sealed department of seal valve seat.
For further reducing the impact force that the flap sealing surface is subjected to, prolong the working life of valve, the first flap sealed department of above-mentioned valve rod is a triangle.
Further, the first flap sealed department of above-mentioned sealed valve stem is symmetricly set on the described top of hole inwall down.
Compared with prior art, the beneficial effect that the utlity model has is:
The utility model is reasonable in design, and economical with materials is easy for installation, can effectively reduce the impact force that flap is subjected to, and good sealing effect has prolonged working life of valve.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the sectional view of the utility model stop valve novel sealing structure;
Fig. 2 is the sectional view of a kind of stop valve of the utility model embodiment.
Embodiment
As shown in Figure 1, the stop valve novel sealing structure, comprise flap 1, described flap 1 has the central through bore 11 with sealed valve stem 3 couplings, and described central through bore 11 is made up of last hole and following hole, the described diameter of going up the diameter in hole greater than following hole, the front end of last hole and sealed valve stem 3 matches, the frustum of described hole down and sealed valve stem 3 front ends matches, and is provided with the first flap sealed department 12 of sealed valve stem 3 in the described flap 1, and described flap 1 bottom is provided with the second flap sealed department 13 of seal valve seat 6.
The first flap sealed department 12 of described sealed valve stem 3 is a triangle.
The first flap sealed department 12 of described sealed valve stem 3 is symmetricly set on the described top of hole inwall down.
A kind of stop valve as shown in Figure 2, comprise valve body 2, valve gap 5 and handwheel 4, be provided with flap 1 in the valve body 2 and be used to drive flap 1 and do the moving valve rod 3 of straight line along the center line of valve seat 6, valve rod 3 one ends and handwheel 4 are fixing, the other end is fixedlyed connected with flap 1, flap 1 has the central through bore 11 with valve rod 3 couplings, described central through bore 11 is made up of last hole and following hole, the described diameter of going up the diameter in hole greater than following hole, the front end of last hole and valve rod 3 matches, the frustum of described hole down and valve rod 3 front ends matches, and is provided with the first flap sealed department 12 of sealed valve stem 3 in the described flap 1, and described flap 1 bottom is provided with the second flap sealed department 13 of seal valve seat 6.
The working principle of stop valve is as follows: rotation hand wheel 4, valve rod 3 drive flaps 1 and rise or descend, and flap 1 separates with valve seat 6 or be closed, valve opening or close.Because flap 1 is reasonable in design, the frustum of valve rod 3 front ends is fixedlyed connected with the following hole of flap, and the central through bore 11 that valve rod inserts flap seals, reached the double sealing structure of flap 1, saved material, easy for installation and to have reduced impact force little, prolonged the working life of valve.
Claims (3)
1. stop valve novel sealing structure, comprise flap (1), it is characterized in that, described flap (1) has the central through bore (11) with sealed valve stem (3) coupling, described central through bore (11) is made up of last hole and following hole, the described diameter of going up the diameter in hole greater than following hole, the front end of last hole and sealed valve stem (3) matches, the frustum of described hole down and sealed valve stem (3) front end matches, be provided with the first flap sealed department (12) of sealed valve stem (3) in the described flap (1), described flap (1) bottom is provided with the second flap sealed department (13) of seal valve seat (6).
2. stop valve novel sealing structure according to claim 1 is characterized in that the first flap sealed department (12) of described sealed valve stem (3) is a triangle.
3. stop valve novel sealing structure according to claim 1 is characterized in that the first flap sealed department (12) of described sealed valve stem (3) is symmetricly set on the described top of hole inwall down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049450 CN203082239U (en) | 2013-01-28 | 2013-01-28 | Novel stop valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049450 CN203082239U (en) | 2013-01-28 | 2013-01-28 | Novel stop valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082239U true CN203082239U (en) | 2013-07-24 |
Family
ID=48828078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049450 Expired - Fee Related CN203082239U (en) | 2013-01-28 | 2013-01-28 | Novel stop valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082239U (en) |
-
2013
- 2013-01-28 CN CN 201320049450 patent/CN203082239U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |