CN201531640U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN201531640U CN201531640U CN2009202701335U CN200920270133U CN201531640U CN 201531640 U CN201531640 U CN 201531640U CN 2009202701335 U CN2009202701335 U CN 2009202701335U CN 200920270133 U CN200920270133 U CN 200920270133U CN 201531640 U CN201531640 U CN 201531640U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- ball
- sealing
- ball core
- 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 relates to a ball valve, and belongs to the field of valves. A hard sealing valve seat is often adopted in a traditional ball valve, the sealing face of a valve core and the valve seat is easy to contact with medium and subjected to corrosion, the service life is shorter, and the use cost is higher. The utility model provides a ball valve, which comprises a ball core, a valve seat, a valve body, a bonnet and a valve rod, wherein the valve body is provided with two medium flow channels, the inner ports of the medium flow channels are provided with the valve seats which are tightly matched with the ball core, the combined sealing working face of the valve seat and the ball core is provided with a dual sealing ring, and the main sealing face of the dual sealing ring contacted with the ball core and the auxiliary sealing face of the dual sealing ring contacted with the valve seat are both provided with transition circular arcs. The ball valve adopts the dual sealing ring to seal, reduces the abrasion and damages of foreign matter particles to the sealing faces, and improves the service life since the sealing faces of the ball core and the valve seat are both separated from medium no matter in open or closure.
Description
Technical field
The utility model relates to valve, is specifically related to a kind of ball valve.
Background technique
The hard seal valve seat of the many employings of traditional ball valve, the structure of its seal ring usually as shown in Figure 3, spool easily contacts with medium with the sealing surface of valve seat and is corroded, and when bad particle enters the sealing surface of spheroid and valve seat, hard impurity in the medium also can scratch sealing layer, shorten ball valve working life, increased user cost, do not meet the requirement of setting up conservation-minded society.
Summary of the invention
The purpose of this utility model is that the valve seat and the spool that solve existing ball valve existence are hard, contacts easy to wear, corrosion for a long time, ball valve short problem in working life.
The utility model adopts technological scheme as follows:
A kind of ball valve, comprise ball core, valve seat, valve body, valve gap, valve rod, described valve body has two MEDIA FLOW circulation passage, the internal orifice of MEDIA FLOW circulation passage is provided with valve seat, valve seat and ball core closely cooperate, the sealed working face that described valve seat combines with the ball core is provided with the double density seal, the primary sealing area that this double density seal contacts with the ball core, with secondary sealing area that valve seat contacts on all offer transition arc.
The utlity model has following advantage:
1, sealing is reliable.Adopt double density seal sealing; when bad foreign material particle is arranged in the medium; the foreign material particle is when the primary sealing area place that contacts with valve seat through the ball core; the foreign material particle can be trapped in transition arc, has reduced wearing and tearing and the destruction of foreign material particle to sealing surface accordingly, the working life of having improved ball valve; no matter and be to open or close; the sealing surface of ball core and valve seat all separates with medium, so medium can the etch valve sealing face, the ball valve long service life.
2, easy to operate, open and close rapidly, as long as half-twist is remote, control is convenient from the standard-sized sheet to the full cut-off.
The utility model has also that the ball valve resistance is low, structure tube list, compactness, beneficial effect that weight is lighter.
Description of drawings
Fig. 1 is the utility model sectional view
Fig. 2 is Figure 1A part enlarged view
Fig. 3 is prior art ball core and sealing surface of seat sectional view
Each parts sequence number is as follows among the figure:
1---ball core, 2---valve seat, 3---valve body, 4---valve gap, 5---valve rod, 6---double density seal, 7---transition arc, 8---handle
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment
A kind of ball valve, comprise ball core 1, valve seat 2, valve body 3, valve gap 4, valve rod 5, described valve body 3 tops are provided with valve gap 4, valve body 3 inside have two MEDIA FLOW circulation passage, the internal orifice of MEDIA FLOW circulation passage is provided with valve seat 2, valve seat 2 closely cooperates with ball core 1, and the sealed working face that described valve seat 2 combines with ball core 1 is provided with double density seal 6, the primary sealing area that this double density seal 6 contacts with ball core 1, with secondary sealing area that valve seat 2 contacts on all offer transition arc 7.Ball core 1 top is connected with valve rod 5, and valve rod 5 tops are provided with handle 8.
From the above mentioned; the utility model adopts double density seal 6 sealings; when bad foreign material particle is arranged in the medium; the foreign material particle is through ball core 1 during with primary sealing area place that valve seat 2 contacts; the foreign material particle can be trapped for 7 li at transition arc; reduced wearing and tearing and the destruction of foreign material particle accordingly to sealing surface; improved the working life of ball valve; no matter and be to open or close; the sealing surface of ball core 1 and valve seat 2 all separates with medium; therefore medium can the etch valve sealing face, prolongs the ball valve purpose in working life thereby reached.
The utility model only describes with the foregoing description; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.
Claims (1)
1. ball valve, comprise ball core (1), valve seat (2), valve body (3), valve gap (4), valve rod (5), described valve body (3) has two MEDIA FLOW circulation passage, the internal orifice of MEDIA FLOW circulation passage is provided with valve seat (2), valve seat (2) closely cooperates with ball core (1), it is characterized in that the sealed working face that described valve seat (2) combines with ball core (1) is provided with double density seal (6), the primary sealing area that this double density seal (6) contacts with ball core (1), with secondary sealing area that valve seat (2) contacts on all offer transition arc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202701335U CN201531640U (en) | 2009-11-24 | 2009-11-24 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202701335U CN201531640U (en) | 2009-11-24 | 2009-11-24 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531640U true CN201531640U (en) | 2010-07-21 |
Family
ID=42527044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202701335U Expired - Fee Related CN201531640U (en) | 2009-11-24 | 2009-11-24 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531640U (en) |
-
2009
- 2009-11-24 CN CN2009202701335U patent/CN201531640U/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: 20100721 Termination date: 20101124 |