CN202344521U - Disassembly and assembly maintenance frame for return pressure valve - Google Patents
Disassembly and assembly maintenance frame for return pressure valve Download PDFInfo
- Publication number
- CN202344521U CN202344521U CN2011204529340U CN201120452934U CN202344521U CN 202344521 U CN202344521 U CN 202344521U CN 2011204529340 U CN2011204529340 U CN 2011204529340U CN 201120452934 U CN201120452934 U CN 201120452934U CN 202344521 U CN202344521 U CN 202344521U
- Authority
- CN
- China
- Prior art keywords
- pressure valve
- back pressure
- disassembly
- support
- lead screws
- 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 disassembly and assembly maintenance frame for a return pressure valve. The disassembly and assembly maintenance frame is characterized by comprising a support and two lead screws which are arranged on the support oppositely, wherein clampers are arranged at clamping ends of the two lead screws, and hand wheels are arranged at control ends of the two lead screws; the clampers are gate plates; the gate plates are connected with the lead screws in a movable mode; and the gate plates are the rotary clampers with 360-degree rotary functions; the support is formed by welding a steel plate which is 20 or 40 millimeters thick; and according to the hand wheels, the gate plates with 5-inch thicknesses are welded to the lead screws. By the disassembly and assembly maintenance frame, the recovered return pressure valve can be convenient to disassemble and overhaul, so that the return pressure valve can be recycled; and therefore, the well drilling cost and waste are reduced.
Description
Technical field
The utility model relates to a kind of back pressure valve dismounting maintenance rig.
Background technology
Drilling well is a high risk operation, and it is a kind of important interior blowout prevention instrument in the drilling engineering that FJ forces back pressure valve.During use, this instrument is connected needed drilling tool position.In normal drilling process, drilling fluid provides drilling fluid downwards through the tank of anti-your body of back pressure valve.When well kick, blowout took place in the down-hole, down-hole pressure impelled the valve body to move upward, and the conical surface of valve body and sealing surface are closely cooperated, prevented drilling fluid in drilling tool to aboveground well kick, blowout.The structure of back pressure valve mainly by: main body, spring, thimble, valve seat and wire ring etc. are formed.After back pressure valve is gone into the well use, can produce stuck, the distortion of spring; Spool is stuck; The spool hydrophthalmia is stabbed and problems such as sealing surface pierces through, and causes back pressure valve to re-use.
Can't check failure conditions after losing efficacy in the on-the-spot at present back pressure valve drilling process that uses, scrap processing, and can make drilling cost rise like this, and cause significant wastage thereby can only do.
The utility model content
The technical problem that the utility model will solve provides a kind of back pressure valve dismounting maintenance rig, to overcome the defective that exists in the prior art.
The technical scheme of the utility model is: a kind of back pressure valve dismounting maintenance rig is characterized in that: comprise support and be relatively arranged on two leading screws on the support; The bare terminal end of said two leading screws is respectively arranged with binding clasp, and the control end of two leading screws is respectively arranged with handwheel.
Said binding clasp is a flashboard.
Said flashboard and leading screw flexibly connect, and flashboard has the rotary binding clasp of 360 ° of spinfunctions.
Said support is welded by 20mm or 40mm steel plate; Handwheel is that 5 〞 flashboards are welded in leading screw.
The technique effect of the utility model is: through the back pressure valve dismounting maintenance rig of the utility model, can be easily to the back pressure valve that the is reclaimed maintenance of disintegrating.Realize the utilization again after back pressure valve is repaired, thereby reduced drilling cost, reduced waste.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is further specified:
Fig. 1 is the utility model front view;
Fig. 2 is the utility model vertical view.
Reference numeral is: 1. support, 2. binding clasp, 3. handwheel, 4. leading screw.
The specific embodiment
The utility model belongs to the drilling well control technical field, is to be applicable in the interior blowout prevention instrument maintenance activity.Back pressure valve, is tightened back pressure valve through handwheel rotating band movable wire thick stick, flashboard in the middle of flashboard by clamping.Be convenient to the workman and check that back pressure is all, disassemble and change the back pressure valve parts.Realize the back pressure valve repairing and reusing.
Referring to Fig. 1 and Fig. 2, the concrete structure of a kind of back pressure valve dismounting maintenance rig that the utility model relates to is:
Comprise support 1 and be relatively arranged on two leading screws 4 on the support 1;
The control end that the bare terminal end of said two leading screws 4 is respectively arranged with 2, two leading screws 4 of binding clasp is respectively arranged with handwheel 3.
Binding clasp 2 in the utility model specifically can be flashboard, and flashboard can be the rotary binding clasp with 360 ° of revolute functions, so that inspection and back pressure valve disintegrate.
Support 1 in the utility model specifically can be welded by 20mm or 40mm steel plate; Handwheel 3 specifically can be 5 〞 flashboards and is welded in leading screw 4.
That effect of the utility model has:
(1) fixing back pressure valve;
(2) spinfunction is arranged, can 360 ° of revolutions;
(3) be convenient to inspection, back pressure valve disintegration.
Claims (4)
1. a back pressure valve dismounting maintenance rig is characterized in that: comprise support (1) and be relatively arranged on two leading screws (4) on the support (1); The bare terminal end of said two leading screws (4) is respectively arranged with binding clasp (2), and the control end of two leading screws (4) is respectively arranged with handwheel (3).
2. according to the said back pressure valve dismounting of claim 1 maintenance rig, it is characterized in that: said binding clasp (2) is a flashboard.
3. according to the said back pressure valve dismounting of claim 2 maintenance rig, it is characterized in that: said flashboard and leading screw (4) flexibly connect, and flashboard has the rotary binding clasp of 360 ° of spinfunctions.
4. according to the said back pressure valve dismounting of claim 1 maintenance rig, it is characterized in that: said support (1) is welded by 20mm or 40mm steel plate; Handwheel (3) is that 5 〞 flashboards are welded in leading screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204529340U CN202344521U (en) | 2011-11-16 | 2011-11-16 | Disassembly and assembly maintenance frame for return pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204529340U CN202344521U (en) | 2011-11-16 | 2011-11-16 | Disassembly and assembly maintenance frame for return pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344521U true CN202344521U (en) | 2012-07-25 |
Family
ID=46533550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204529340U Expired - Fee Related CN202344521U (en) | 2011-11-16 | 2011-11-16 | Disassembly and assembly maintenance frame for return pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903659A (en) * | 2017-04-10 | 2017-06-30 | 陕西汉江投资开发有限公司喜河水力发电厂 | A kind of dead axle device for the maintenance of vertical axial-flow Kaplan turbine |
-
2011
- 2011-11-16 CN CN2011204529340U patent/CN202344521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903659A (en) * | 2017-04-10 | 2017-06-30 | 陕西汉江投资开发有限公司喜河水力发电厂 | A kind of dead axle device for the maintenance of vertical axial-flow Kaplan turbine |
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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: 20120725 Termination date: 20171116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |