CN203716930U - Plate type float valve - Google Patents
Plate type float valve Download PDFInfo
- Publication number
- CN203716930U CN203716930U CN201420069342.4U CN201420069342U CN203716930U CN 203716930 U CN203716930 U CN 203716930U CN 201420069342 U CN201420069342 U CN 201420069342U CN 203716930 U CN203716930 U CN 203716930U
- Authority
- CN
- China
- Prior art keywords
- valve
- limiting
- valve body
- plate type
- type float
- 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
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a plate type float valve, relates to petroleum machinery, and specifically relates to an improved structure of the plate type float valve, which comprises a valve body (2) with a valve bonnet (1), wherein a sealing sleeve (3) arranged in the valve body (2) is in sealing fit with the valve bonnet (1), and a limiting seat (4) is arranged below the valve bonnet (1) in the valve body (2); a limiting mark (5) is hinged onto the limiting seat (4), and a limiting spring (6) is arranged on the limiting mark (5) so that the limiting mark (5) is kept in an obliquely upward limiting state; the valve body (2) is provided with an annular groove in the inner wall below the limiting seat (4), and a spring collar (7) is arranged in the annular groove. The plate type float valve provided by the utility model has the advantages of simple structure, reasonable design and good use effects, and solves the problems that the valve bonnet damages a drilling bit or screw drilling tool because the valve bonnet falls into a well, and the end part of a rubber sealing gasket breaks or peels.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to a kind of architecture advances of board-like float valve.
Background technology
Float valve assembly in oil accessory generally comprises two kinds: one is that turnover plate type sealing float valve is called for short plate valve, and another kind is that the sealed float valve of taper surface is called for short arrow valve.Float valve assembly is mainly used in float valve joint, is conventionally connected to the top of drill bit, the flow liquid being used at the bottom of control well.In the time that termination of pumping makes up a joint, can prevent drilling cuttings backflow obstruction hydrophthalmia; In the time there is well kick, can stop flow liquid to flow in drilling tool, play the effect of drilling tool blowout prevention valve.
Along with the raising of productivity and the development in market, to float valve assembly, technical requirements has further raising, and the float valve later dispatching from the factory for 2011 necessarily requires bulge test, not only requires to dispatch from the factory bulge test, also require before drilling well, to carry out bulge test, require outward appearance perfect sunken simultaneously.
By practice in the past few years, find that plate valve valve gap has the fracture phenomena of beating and valve gap to come off with a period of time, repeatedly suppress and find the damaged scaling in rubber gasket end.Improvement way is that material makes 40CrMnMo into by original 45# by the thickening of plate valve valve gap, adds that heat treatment has to solve plate valve valve gap completely the fracture phenomena of beating.But after valve gap hardness improves, after coming off, it can there is the problem of damaging drill bit or helicoid hydraulic motor.
Summary of the invention
Technical problem to be solved in the utility model is: for the problems referred to above, provide a kind of architecture advances of board-like float valve.
Technical solution of the present utility model is: it comprises the valve body that is provided with valve gap, in valve body, being provided with sealing shroud coordinates with valve bonnet seal, it is characterized in that, in described valve body, be provided with limit base in the below of described valve gap, on limit base, be hinged with gag lever post, gag lever post is provided with limit spring makes gag lever post remain on the spacing state of oblique top, and valve body is provided with annular groove in the inwall of limit base below, is provided with check ring in annular groove.
Technique effect of the present utility model is: it has advantages of simple in structure, reasonable in design and result of use is good, has solved valve gap and has fallen into the problem of damaging drill bit or the damaged scaling of helicoid hydraulic motor and rubber gasket end in well owing to coming off.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, it comprises the valve body 2 that is provided with valve gap 1, in valve body 2, being provided with sealing shroud 3 is sealed and matched with valve gap 3, it is characterized in that, in described valve body 2, be provided with limit base 4 in the below of described valve gap 1, be hinged with gag lever post 5 on limit base 4, gag lever post 5 is provided with limit spring 6 makes gag lever post 5 remain on the spacing state of oblique top, valve body 2 is provided with annular groove in the inwall of limit base 4 belows, is provided with check ring 7 in annular groove.Check ring 7 internal diameters are less than valve gap 3 external diameters, prevent from turning below after its accidental and cannot process, to such an extent as to damage drilling tool in subsequent job.Gag lever post 5 remains on spacing state by spring, so that valve gap 3 can remain on open mode by it after opening, touches gag lever post 5 and can close valve gap 3.
The sealing surface that described sealing shroud 3 contacts with described valve gap 1 is circular arc.Make sealing mat head rectangle into fillet type, make some crimp space of sealing mat head in the time repeatedly suppressing, solved the damaged scaling phenomenon in rubber gasket end.
Claims (2)
1. board-like float valve, comprise the valve body (2) that is provided with valve gap (1), in valve body (2), being provided with sealing shroud (3) is sealed and matched with valve gap (3), it is characterized in that, in described valve body (2), be provided with limit base (4) in the below of described valve gap (1), on limit base (4), be hinged with gag lever post (5), gag lever post (5) is provided with limit spring (6) makes gag lever post (5) remain on the spacing state of oblique top, valve body (2) is provided with annular groove in the inwall of limit base (4) below, is provided with check ring (7) in annular groove.
2. board-like float valve as claimed in claim 1, is characterized in that, the sealing surface that described sealing shroud (3) contacts with described valve gap (1) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069342.4U CN203716930U (en) | 2014-02-18 | 2014-02-18 | Plate type float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069342.4U CN203716930U (en) | 2014-02-18 | 2014-02-18 | Plate type float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716930U true CN203716930U (en) | 2014-07-16 |
Family
ID=51156095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069342.4U Expired - Fee Related CN203716930U (en) | 2014-02-18 | 2014-02-18 | Plate type float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594081A (en) * | 2020-06-06 | 2020-08-28 | 青岛宏新天机械有限公司 | Integral well drilling float valve |
-
2014
- 2014-02-18 CN CN201420069342.4U patent/CN203716930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594081A (en) * | 2020-06-06 | 2020-08-28 | 青岛宏新天机械有限公司 | Integral well drilling float valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204002658U (en) | Arrow type flap valve | |
| CN203716930U (en) | Plate type float valve | |
| CN204532255U (en) | Ground hydraulic open-type down-hole drainage device | |
| CN204283333U (en) | Well cementing impact pressure self-closing valve | |
| CN201460812U (en) | Arrow-shaped check valve | |
| CN203961899U (en) | Upwards extend the hole sealing device of boring | |
| CN204827363U (en) | It closes closed float collar to bump to press | |
| CN103527139B (en) | Drillable metal casing float collar float shoe device | |
| CN106285544A (en) | A kind of thermal recovery steam injection well head obturator | |
| CN203626717U (en) | Drillable type casing float collar float shoe | |
| CN202349291U (en) | Reinforced type sealed arrow-shaped check valve | |
| CN204139998U (en) | A kind of blowout-prevention anti-falling integral type helicoid hydraulic motor | |
| CN204371218U (en) | Anti-drilling fluid splash valve | |
| CN206129214U (en) | Rod hanger and prevent that spraying seat puts ware thereof | |
| CN203175546U (en) | Pressure testing device for shear screw pump | |
| CN105625983B (en) | Well construction underground automatic switch | |
| CN204371229U (en) | Downhole safety valve for oil field | |
| CN204457606U (en) | Arrow-shaped check valve | |
| CN204041006U (en) | Hydraulic pressure well bore isolation valve | |
| CN204532228U (en) | A kind of projective table type blind plugging pipe nipple | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN203961860U (en) | Anti-pricked bypass valve | |
| CN204371122U (en) | A kind of wear-resisting splashproof joint | |
| CN202220358U (en) | Leakproof water vertical type fire hydrant | |
| CN203499623U (en) | Sucker rod blowout preventer with hamper bodies automatically centered |
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: 20140716 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |