CN2267362Y - Combination check valve - Google Patents
Combination check valve Download PDFInfo
- Publication number
- CN2267362Y CN2267362Y CN 96238003 CN96238003U CN2267362Y CN 2267362 Y CN2267362 Y CN 2267362Y CN 96238003 CN96238003 CN 96238003 CN 96238003 U CN96238003 U CN 96238003U CN 2267362 Y CN2267362 Y CN 2267362Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve seat
- sealing
- auxiliary valve
- utility
- 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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- Check Valves (AREA)
Abstract
The utility model relates to a combination check valve which is suitable for conveying slurry and corrosive medium, comprising a main valve body, an auxiliary valve body, a valve seat, a sealing plate, a sealing ring, etc. The utility model is characterized in that the auxiliary valve body with an annular lug boss is inserted in a flange connection piece, and a limited block is arranged on a sealing flange connection body through the sealing ring of the annular lug boss on the auxiliary valve body. The utility model has the advantages of reasonable structure, good tightness, long service life and convenient maintenance, assembly and disassembly.
Description
The utility model belongs to valve class technical field, particularly a kind of safety check that is applicable to slurry and Korrosionsmedium line transportation.
At present, in slurry pipeline and Korrosionsmedium conveyance conduit, most of safety check that uses is as various Lift check valves, Swing check valve and butterfly valve, though its characteristics are separately all arranged, shortcoming such as ubiquity and is not closed completely, structure is complicated, flow passage components are many, wearing and tearing are big.
The purpose of this utility model provide a kind ofly be used for, the low pressure Slurry Pipeline Transportation, the safety check that sealing is reliable, be easy to change wear-out part and Sealing.
The purpose of this utility model is to realize like this; The combined type safety check mainly comprises: main valve body, auxiliary valve body, flange connected body, valve seat, sealing plate and associated seal etc.Accompany valve seat between main valve body and auxiliary valve body, the three connects by flange bolt, and makes the valve seat location.On valve seat, connect sealing plate with bearing pin.There is the single face dovetail groove to place zero RunddichtringO on the valve seat, solves the sealing between sealing plate and the valve seat.The auxiliary valve body of band type boss inserts in the flange connected body, and the two can be in the axial direction relative movement, there is limiting stopper to prevent that auxiliary valve body and flange connected body break away from the flange connected body, and seals by the surface of contact of zero RunddichtringO to auxiliary valve body and flange connected body.
The advantage that the utility model is compared with prior art had is:
1, since between sealing plate and the valve seat by being contained in the zero RunddichtringO sealing that is shaped as on the valve seat in the monolateral dovetail groove, so have contact tight, required sealing force little, reach the advantage of sealing easily.
2, because sealing is reliable, has avoided internal leakage, thereby reduced the erosion of slurry, reduced the quick-wearing of crossing of parts Sealing.
3, the replacing easily damaged parts is easy, safeguards easy accessibility, greatly reduces labor intensity.
4, simple in structure, flow passage components are few, long service life.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present utility model.
Combined type safety check of the present utility model, mainly comprise main valve body 1, valve seat 4, sealing plate 2, bolt 6, auxiliary valve body 5, limiting stopper 7, seal ring 8 and flange connecting body 9, main valve body 1 links to each other with valve seat 4 by bolt 6 with auxiliary valve body 5, main valve body 1 seals by seal ring 10 with valve seat 4, auxiliary valve body 5 seals by seal ring 11 with valve seat 4, the auxiliary valve body 5 that has annular boss inserts in the flange connecting body 9 and by seal ring 8 and seals, pass through bolt limiting stopper 7 on the flange connector 9, sealing plate 2 links to each other with valve seat 4 by bearing pin 3, and sealing plate 2 seals by zero RunddichtringO in the monolateral dovetail groove on the valve seat 4 with valve seat 4.
When the combined type safety check is worked, the line transportation medium backs down sealing plate 2 by this valve by flange connecting body 9, when passing through as the line transportation medium is reverse, under medium power and sealing plate 2 actions of gravity, sealing plate 2 abuts against on the sealing surface of valve seat 4, thereby has reached the purpose of non-return.
When needs are changed valve seat 4, sealing plate 2, bearing pin 3 and relevant Sealing, as long as unclamp attachment bolt 6, auxiliary valve body 5 is advanced a segment distance in the flange connecting body 9 to the right, sealing plate 2 and valve seat 4 are left main valve body 1 know the distance of working as, be that replaceable sealing plate 2, valve seat 4 reach relevant Sealing etc., do not unload the disengaging of limiting stopper 7 restriction flange connecting bodys 9 and auxiliary valve body 5 from pipeline and will not put in order deck valve.When needs are changed ○Xing Mifengquan 8, as long as flange connecting body 9 is unclamped with the bolt that outer pipeline is connected usefulness, the flange connecting body 9 that is enclosed within on the auxiliary valve body 5 is pushed away one section suitable distance left, expose seal ring 8, promptly replaceable.
The sealing surface of valve seat 4 with perpendicular to the vertical guide of valve axis one angle α is arranged, make sealing plate 2 utilize the gravity of himself, be adjacent on sealing surface.
Claims (3)
1, a kind of combined type safety check that is applicable to slurry body and Korrosionsmedium, it comprises main valve body, auxiliary valve body, valve seat, sealing plate and seal ring etc., it is characterized in that the auxiliary valve body that has ring-like boss inserts in the flange coupling, and, on the flange connected body limiting stopper is arranged by the sealing of the seal ring on the annular boss on the auxiliary valve body.
2, combined type safety check according to claim 1 is characterized in that valve seat is linked together by bolt and main valve body, auxiliary valve body, makes the valve seat location.
3, combined type safety check according to claim 1, it is characterized in that on the valve seat sealing surface with perpendicular to the vertical guide of valve axis one angle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238003 CN2267362Y (en) | 1996-07-31 | 1996-07-31 | Combination check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96238003 CN2267362Y (en) | 1996-07-31 | 1996-07-31 | Combination check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2267362Y true CN2267362Y (en) | 1997-11-12 |
Family
ID=33913436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96238003 Expired - Fee Related CN2267362Y (en) | 1996-07-31 | 1996-07-31 | Combination check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2267362Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443810A (en) * | 2014-08-29 | 2016-03-30 | 杨春 | Flange type plate check valve |
| CN113202960A (en) * | 2021-05-18 | 2021-08-03 | 江苏盛丰机械科技有限公司 | Valve body with internal rotation adjusting assembly |
-
1996
- 1996-07-31 CN CN 96238003 patent/CN2267362Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443810A (en) * | 2014-08-29 | 2016-03-30 | 杨春 | Flange type plate check valve |
| CN113202960A (en) * | 2021-05-18 | 2021-08-03 | 江苏盛丰机械科技有限公司 | Valve body with internal rotation adjusting assembly |
| CN113202960B (en) * | 2021-05-18 | 2024-01-09 | 江苏盛丰机械科技有限公司 | Valve body with inside rotation regulation subassembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |