CN2828307Y - Arrow drilling tool check valve - Google Patents
Arrow drilling tool check valve Download PDFInfo
- Publication number
- CN2828307Y CN2828307Y CN 200520033450 CN200520033450U CN2828307Y CN 2828307 Y CN2828307 Y CN 2828307Y CN 200520033450 CN200520033450 CN 200520033450 CN 200520033450 U CN200520033450 U CN 200520033450U CN 2828307 Y CN2828307 Y CN 2828307Y
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- CN
- China
- Prior art keywords
- ring
- valve
- controller
- switch
- arrow
- 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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- Multiple-Way Valves (AREA)
Abstract
The utility model provides an arrow-shaped drilling tool check valve, which is composed of a valve body, a valve base, a valve core, a seal ring, a press ring, a packing box, a baffle ring, etc. The utility model is characterized in that a locking device is arranged in the valve body, and is composed of a controller, a lower support base, an upper support base and a switch, wherein the middle part of the controller is in a sphere shape of which the center is provided with a through hole, the center of the through hole has the same shaft center as an arrow of the valve core, one end of the controller is spaced and supported by the lower support base and the upper support base, and the other end is connected with the switch. When the controller is rotated on the sphere surface of the sphere on the middle part and is aligned with the arrow of the valve core, a blockage arroaw rises; when the controller is rotated to the through hole of the sphere and is aligned with the arrow of the valve core, the arrow can pass through the through hole and go upward. The utility model overcomes the defect of the prior art that the opposite joint is carried out with difficulty at the time of well kick and blowout and is a check valve which is suitable for being used when the well kick and the blowout generate. The check valve can be used for blocking the valve core to close the inner cavity of the valve, and accordingly, the utility model can easily complete the operation of the fast snatching and the connection of drilling tools.
Description
Affiliated technical field
The utility model relates to a kind of oil, natural gas drilling tool flap valve, particularly spool are the drilling tool flap valve of flechette-type.
Background technology
The drilling tool flap valve is in oil, the gas drilling process, one of drill string blowout preventer, and its effect is in drilling process, when well kick or blowout pressure are arranged in the drill string, the drilling tool flap valve can cut out bore passages under pressure automatically, stops upwards ejection of borehole pressure, prevents gas blowout accident.Because the drilling tool flap valve is normally installed when blowout takes place, and pressure is very big during blowout, when flap valve docks with drilling tool, gush on the blowout pressure, act on the spool, make to lift on the spool and seal body cavity, make flap valve be in closed condition, thereby be subjected to very big resistance when flap valve is docked with drilling tool, so that connect difficulty.
The utility model content
The purpose of this utility model is to provide a kind of flechette-type drilling tool flap valve that is adapted at well kick, uses when blowout takes place, this flechette-type drilling tool flap valve can overcome above-mentioned the deficiencies in the prior art, make flechette-type drilling tool flap valve not be subjected to drag effects, can when blowout takes place, easily finish the mating operation of flechette-type drilling tool flap valve and drilling tool.
Realize that approach of the present utility model is: by valve body, valve seat, spool, joint ring, pressure ring, packing box, compress and cap, combined type baffle ring, centering ring, jump ring and flechette-type drilling tool flap valve that lower contact and top connection constituted, end in lower contact, spool is installed on the interior valve seat of valve body, be positioned at the joint ring below, have pressure ring and packing box fastening above the joint ring; One end inwall of valve body top connection is provided with combined type baffle ring, centering ring and jump ring, it is characterized in that: in valve body, add a locking device between packing box and the combined type baffle ring, locking device is made of controller, undersetting, upper bracket and switch; Undersetting is close to valve interior wall and is assemblied in the packing box top, and upper bracket is close to valve interior wall and is assemblied in the combined baffle below; Controller laterally is assemblied in the valve body, the one end is that support end is stuck in the supported hole of undersetting and upper bracket, the other end is that switch contacts connects switch, and the below of switch contacts connects undersetting, and the top is tight against spacing ring, the middle part of controller is a spheroid form, spheroid upper edge diametric(al) has a through hole, and the through hole internal diameter is greater than spool arrow external diameter, spheroid be positioned at the spool arrow directly over, during through-hole alignment spool arrow, its center and arrow axle center are on same axis; Also assemble a spacing ring and spring pressure ring between upper bracket and combined baffle, be arranged at intervals with the spring eye that caves on the spacing ring, spring eye built-in spring, spring pressure ring are pressed on the spacing ring top; Described controller support end top is a hemispherical, and this end can rotate flexibly, and the step surface of hemisphere is the confined planes of controller; The switch contacts of described controller has a groove, and switch is provided with the convex structure that matches with the groove of switch contacts, and the convex structure on the groove on the switch contacts and switch embedding mutually connects; Use finger setting between described undersetting and the upper bracket, relative position fixing between undersetting in the assurance; Also be provided with a spanner grafting groove on the controller switches, switch be close to valve body around put a packing, switch and valve body keep to be sealed.
Advantage of the present utility model is, when well kick and blowout generation, rob fast in the process that connects flechette-type drilling tool flap valve, because the flechette-type drilling tool flap valve of this structure can pin spool, stop closing of flechette-type drilling tool flap valve, make that flechette-type drilling tool flap valve inner chamber is supreme to be lifted resistance and can easily finish the mating operation of flechette-type drilling tool flap valve and drilling tool.
Description of drawings
Below in conjunction with accompanying drawing enforcement of the present utility model is described in further detail:
Fig. 1 is the utility model internal construction schematic diagram;
Fig. 2 is the utility model locking device controller architecture schematic diagram;
Fig. 3 is the utility model locking device construction of switch schematic diagram.
Among the figure: 1, bottom joint, 2, valve body, 3, valve seat, 4, spool, 5, joint ring, 6, pressure ring, 7, packing box, 8, compress and cap, 9, undersetting, 10, controller, 11, upper bracket, 12, spacing ring, 13, spring eye, 14, the spring pressure ring, 15, the combined type baffle ring, 16, centering ring, 17, snap ring, 18, top connection, 19, switch, 20, packing, 21, support end, 22, step surface, 23, sphere, 24, through hole, 25, spanner grafting groove, 26, supported hole, 27, switch contacts, 28, spool arrow, 29, groove, 30, convex structure.
The specific embodiment
As shown in Figure 1, the utility model by valve body 2, valve seat 3, spool 4, joint ring 5, pressure ring 6, packing box 7, compress and cap 8, compression device, combined type baffle ring 15, centering ring 16, jump ring 17 and lower contact 1 and top connection 18 are constituted, end in lower contact 1, spool 4 is installed on the valve seat 3 in the valve body 2, be positioned at joint ring 5 belows, have pressure ring 6 and packing box 7 fastening above the joint ring 5; One end inwall of valve body 2 top connections 18 is provided with combined type baffle ring 15, centering ring 16 and jump ring 17; In valve body 2, add a locking device between packing box 7 and the combined type baffle ring 15, locking device is made of controller 10, undersetting 9, upper bracket 11, switch 19; Undersetting 9 is close to valve body 2 inwalls and is assemblied in packing box 7 tops, upper bracket 11 is close to valve body 2 inwalls and is assemblied in combined baffle 15 belows, between upper bracket 11 and combined baffle 15, also assemble a spacing ring 12 and spring pressure ring 14, be used to regulate the fit clearance between each parts of locking device, be arranged at intervals with the spring eye 13 that caves on the spacing ring 12, can evenly be provided with 8, spring eye 13 built-in springs, spring pressure ring 14 are pressed on spacing ring 12 tops.As shown in Figure 2, the middle part of controller 10 is a spheroid form, and spheroid upper edge diametric(al) has a through hole 24, through hole 24 internal diameters are greater than spool arrow 28 external diameters, spheroid be positioned at spool arrow 28 directly over, when through hole 24 was aimed at spool arrows 28, its center and arrow axle center were on same axis.Controller 10 support ends 21 tops are hemispherical, and this end can be rotated in supported hole 26 flexibly, and the step surface 22 of hemisphere is the confined planes of controller 10.The switch contacts 27 of controller 10 has a groove 29, and switch 19 is provided with the convex structure 30 that matches with the groove 29 of switch contacts 27, and as shown in Figure 3, the groove 29 on the switch contacts 27 is tied the embedding connection mutually of 30 structures with the convex on the switch 19.Use finger setting between undersetting 9 and the upper bracket 11, relative position fixing between undersetting in the assurance.Also be provided with a spanner grafting groove 25 on the switch 19, switch 19 be close to valve body 2 around put a packing 20, as shown in Figure 3, make switch 19 and valve body 2 keep sealing.
Operating principle of the present utility model is as follows: as shown in Figure 1, spanner grafting groove 25 revolution switches 19, make the top of the sphere 23 of controller 10 middle part spheroids over against spool arrow 28, spool 4 up being blocked, thereby be lockable, at this moment, flap valve is in normally open, valve body 2 internal channels are unimpeded, and when the lower contact of flap valve 1 was docked with drilling tool, well kick, blowout pressure can discharge by the valve internal channel.After mating operation was finished, reversing plug 19 again, made the through hole 24 aligning spools 4 in the controller 10 middle part spheroids get final product up seal valve inner chamber, thus control well kick and blowout.
Claims (6)
1, a kind of flechette-type drilling tool flap valve, constitute by valve body, valve seat, spool, joint ring, pressure ring, packing box, combined type baffle ring, centering ring, jump ring and lower contact and top connection, end in lower contact, spool is installed on the interior valve seat of valve body, be positioned at the joint ring below, have pressure ring and packing box fastening above the joint ring; One end inwall of valve body top connection is provided with combined type baffle ring, centering ring and jump ring, it is characterized in that: in valve body, add a locking device between packing box and the combined type baffle ring, locking device is made of controller, undersetting, upper bracket and switch; Undersetting is close to valve interior wall and is assemblied in the packing box top, and upper bracket is close to valve interior wall and is assemblied in the combined baffle below; Controller laterally is assemblied in the valve body, the one end is that support end is stuck in the supported hole of undersetting and upper bracket, the other end is that switch contacts connects switch, and the below of switch contacts connects undersetting, and the top is tight against spacing ring, the middle part of controller is a spheroid form, spheroid upper edge diametric(al) has a through hole, and the through hole internal diameter is greater than spool arrow external diameter, spheroid be positioned at the spool arrow directly over, during through-hole alignment spool arrow, its center and arrow axle center are on same axis.
2, a kind of flechette-type drilling tool flap valve according to claim 1, it is characterized in that: between upper bracket and combined baffle, also assemble a spacing ring and spring pressure ring, be arranged at intervals with the spring eye that caves on the spacing ring, spring eye built-in spring, spring pressure ring are pressed on the spacing ring top.
3, a kind of flechette-type drilling tool flap valve according to claim 1, it is characterized in that: described controller support end top is a hemispherical, and the step surface of hemisphere is the confined planes of controller.
4, a kind of flechette-type drilling tool flap valve according to claim 1, it is characterized in that: the switch contacts of described controller has a groove, switch is provided with the convex structure that matches with the groove of switch contacts, and the convex structure on the groove on the switch contacts and switch embedding mutually connects.
5, a kind of flechette-type drilling tool flap valve according to claim 1 is characterized in that: use finger setting between described undersetting and the upper bracket.
6, according to claim 1 or 4 described a kind of flechette-type drilling tool flap valve, it is characterized in that: also be provided with a spanner grafting groove on the controller switches, switch be close to valve body around put a packing, switch and valve body keep to be sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033450 CN2828307Y (en) | 2005-03-10 | 2005-03-10 | Arrow drilling tool check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033450 CN2828307Y (en) | 2005-03-10 | 2005-03-10 | Arrow drilling tool check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828307Y true CN2828307Y (en) | 2006-10-18 |
Family
ID=37079864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033450 Expired - Fee Related CN2828307Y (en) | 2005-03-10 | 2005-03-10 | Arrow drilling tool check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828307Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635329A (en) * | 2012-03-30 | 2012-08-15 | 西南石油大学 | Novel double-seal arrow-shaped check valve |
| CN114718506A (en) * | 2022-04-19 | 2022-07-08 | 黑龙江北方双佳钻采机具有限责任公司 | Arrow-shaped check valve with seal mounting structure |
-
2005
- 2005-03-10 CN CN 200520033450 patent/CN2828307Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635329A (en) * | 2012-03-30 | 2012-08-15 | 西南石油大学 | Novel double-seal arrow-shaped check valve |
| CN114718506A (en) * | 2022-04-19 | 2022-07-08 | 黑龙江北方双佳钻采机具有限责任公司 | Arrow-shaped check valve with seal mounting structure |
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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 |