CN207795131U - Hanger fixing assembly and hanger - Google Patents

Abstract

The utility model provides a subassembly and hanger are fixed to hanger, wherein, the subassembly is fixed to the hanger includes: the device comprises a central pipe, slips, a fishing pipe and a pushing piece; the central pipe is vertically arranged, the slip comprises a fixed part and a movable part, the fixed part is fixed on the outer side wall of the central pipe, and the movable part is positioned at the top end of the fixed part; the salvaging pipe is sleeved outside the central pipe and is connected with the central pipe through the setting pin, the bottom end of the salvaging pipe is fixedly connected with the top end of the pushing piece, the bottom end of the pushing piece is arranged between the central pipe and the movable part, and the salvaging pipe can cut off the setting pin under the action of driving force and drive the pushing piece to move relative to the central pipe so as to push the movable part to move towards the direction far away from the outer side wall; and a locking mechanism is arranged between the pushing piece and the movable part or between the pushing piece and the central tube, and the locking mechanism is used for keeping the pushing piece and the movable part relatively fixed after the driving force disappears, so that the clamping effect of the hanger fixing component is improved.

Description

Hanger fixation kit and hanger

Technical field

The utility model is related to oilfield exploitation technical field more particularly to a kind of hanger fixation kits and hanger.

Background technology

Common tool one of of the hanger as oilfield exploitation, the main function of hanger be suspension for fluid by Central tube and the channel etc. provided for production well liquid.The performance of hanger will directly affect the quality of production operation.

In the prior art, hanger includes give up component and fixation kit, and component of giving up is connected to the top of fixation kit End.The job state of hanger includes mainly setting and giving up, and when setting, will first give up component and fixation kit stretches into casing It is interior, then drive component of giving up that fixation kit is made to be fixedly connected with internal surface of sleeve pipe, realization is set；When giving up, component of giving up is driven, The component that makes to give up is detached with fixation kit, and the component that will give up takes out out of casing.

But in the prior art, fixation kit structure is typically more complicated, is not only difficult to manufacture assembly, and structural stability It is not high, it is easy to cause the Joint failure of fixation kit and casing.

Utility model content

A kind of hanger fixation kit of the utility model offer and hanger, to overcome prior art hanger fixation kit Can not clamping internal surface of sleeve pipe the problem of.

The utility model provides a kind of hanger fixation kit, including：Central tube, salvages pipe and impeller at slips.

The central tube is vertically arranged, and the slips includes fixed part and movable part, and the fixed part is fixed on institute It states on the lateral wall of central tube, the moving part is in the top of the fixed part；And the outer surface of the movable part is for blocking Fixed pipe.

The salvaging pipe sleeve is located at outside the central tube, and salvaging pipe is connected with the central tube by setting pin It connects, the bottom end for salvaging pipe is fixedly connected with the top of the impeller, and the bottom end of the impeller is set to the center Between pipe and the movable part, and the salvaging pipe can be cut under the action of driving force and set pin and drive the promotion The relatively described central tube movement of part, to push the movable part to be moved to the direction far from the lateral wall.

And lock is additionally provided between the impeller and the movable part or between the impeller and the central tube Tight mechanism, the retaining mechanism are used for after the driving force disappears so that the impeller keeps opposite with the movable part It is fixed.

Hanger fixation kit as described above, wherein the outer surface of the impeller is taper, the taper it is transversal Area is gradually reduced from top to bottom end, and the inner surface of the movable part is bonded with the outer surface of the impeller, and described is pushed away Angle between the outer surface of moving part and the central tube axis is less than the movable part Several arc-tangent values, and the outer surface of the impeller and the inner surface of the movable part collectively form the retaining mechanism.

Hanger fixation kit as described above, wherein the top for salvaging pipe protrudes from the central tube, and the end Inner surface be provided with the interconnecting piece for being fixedly connected with fishing tool.

Hanger fixation kit as described above, wherein the outer surface of the movable part is provided with protrusion.

Hanger fixation kit as described above, wherein the quantity of the protrusion is multiple, and multiple protrusions are circumferentially Direction is arranged at intervals on the movable part.

Hanger fixation kit as described above, wherein the quantity of the slips is multiple, and multiple slips are circumferentially Direction interval is located on the central tube.

The utility model also provides a kind of hanger, including：It gives up component and hanger fixation kit as described above, The component of giving up is connected to the top of the hanger fixation kit, and the component of giving up is used to generate the driving force, with The hanger fixation kit is set to be fixedly connected with described sleeve pipe.

Hanger as described above, wherein the component of giving up includes：Connector and actuator；The connector Top is provided with the connector for being connect with external equipment, and the bottom end of the connector is stretched into the central tube, and the company Fitting is fixedly connected by pin of giving up with the central tube, and the actuator is sheathed on outside the connector, and the driving The bottom end of part and the tip contact for salvaging pipe, the actuator can vertically be moved to push relative to the connector State salvaging pipe.

Hanger as described above, wherein closed annulus is formed between the connector and the actuator, The inlet opening being connected to the annulus is formed on the connector.

Hanger as described above, wherein be additionally provided between the connector and the actuator described for sealing The sealing ring of annulus.

Hanger fixation kit and hanger provided by the utility model, by be arranged central tube, slips, salvage pipe and Impeller；Wherein, slips includes the movable part with the fixed fixed part of central tube lateral wall and positioned at the fixed part top, Between the centrally disposed pipe in bottom end and movable part of impeller, salvages pipe and connect with central tube by setting pin, and salvage pipe Bottom end be fixedly connected with the top of impeller, salvage pipe can push impeller under the action of driving force so that movable part It is moved to the direction far from central tube, with clamping internal surface of sleeve pipe, realization packer fixation kit is fixedly connected with casing, and is pushed away Retaining mechanism is additionally provided between moving part and movable part or between impeller and central tube so that after driving force disappears, push away Moving part can keep being relatively fixed with movable part, improve the clamping effect of hanger fixation kit.

Description of the drawings

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, it should be appreciated that herein Described specific implementation mode is only used for describing and explaining the present invention, and the utility model is not limited to following specific realities Apply mode.

Fig. 1 is the overall structure diagram of the utility model hanger fixation kit；

Fig. 2 is the partial structurtes enlarged drawing of slips and impeller in Fig. 1；

Fig. 3 is the schematic diagram of Fig. 2；

Fig. 4 is the overall structure diagram of the utility model hanger；

Fig. 5 gives up the overall structure diagram of component in being convex 4；

Fig. 6 is the junction structural schematic diagram of the utility model hanger fixation kit and component of giving up.

Reference sign：

1：Central tube；

11：Set pin；

2：Slips；

21：Fixed part；

22：Movable part；

221：Protrusion；

3：Impeller；

4：Salvage pipe；

41：Interconnecting piece；

5：Connector；

51：Connector；

52：It gives up pin；

53：Upper tube；

54：Central tube；

55：Lower tube；

6：Actuator；

61：First part；

62：Second part；

7：Annulus；

71：Inlet opening；

72：Sealing ring.

Specific implementation mode

Common tool one of of the hanger as oilfield exploitation, the main function of hanger be suspension for fluid by Central tube and the channel etc. provided for production well liquid.The performance of hanger will directly affect the quality of production operation.

In the prior art, hanger includes give up component and fixation kit, and component of giving up is connected to the top of fixation kit End.The job state of hanger includes mainly setting and giving up, and when setting, will first give up component and fixation kit stretches into casing It is interior, then drive component of giving up that fixation kit is made to be fixedly connected with internal surface of sleeve pipe, realization is set；When giving up, component of giving up is driven, The component that makes to give up is detached with fixation kit, and the component that will give up takes out out of casing.

But in the prior art, fixation kit structure is typically more complicated, is not only difficult to manufacture assembly, and structural stability It is not high, it is easy to cause the Joint failure of fixation kit and casing.

Therefore, to solve the above-mentioned problems, a kind of hanger fixation kit of the utility model embodiment offer and hanger, The fixed effect that hanger fixation kit and internal surface of sleeve pipe can be enhanced improves the reliability of hanger.

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, it should be appreciated that herein Described specific implementation mode is only used for describing and explaining the present invention, and the utility model is not limited to following specific realities Apply mode.

Fig. 1 is the overall structure diagram of the utility model hanger fixation kit；Fig. 2 is slips and impeller in Fig. 1 Partial structurtes enlarged drawing.

Incorporated by reference to Fig. 1 and Fig. 2, the present embodiment provides a kind of hanger fixation kits, including：Central tube 1, is salvaged slips 2 Pipe 4 and impeller 3；Central tube 1 is vertically arranged, and slips 2 includes fixing 21 and movable part 22, and fixed part 21 is fixed on On the lateral wall of central tube 1, movable part 22 is located at the top of fixed part 21；And the outer surface of movable part 22 is used for clamping casing； Salvage pipe 4 be set in outside central tube 1, and salvage pipe 4 connect with central tube 1 by setting pin 11, salvaging pipe 4 bottom end and The top of impeller 3 is fixedly connected, and the bottom end of impeller 3 is set between central tube 1 and movable part 22, and salvaging pipe 4 can It is cut under the action of driving force and sets pin 11 and impeller 3 is driven to be moved with respect to central tube 1, to push movable part 22 to remote Direction movement from lateral wall；And lock is additionally provided between impeller 3 and movable part 22 or between impeller 3 and central tube 1 Tight mechanism, retaining mechanism are used for after driving force disappears so that impeller 3 is relatively fixed with the holding of movable part 22.

Specifically, hanger fixation kit can be applied in petroleum recovery operations, may include being useful for fluid to lead to The central tube 1 crossed, the slips 2, impeller 3 and the salvaging pipe 4 that are fixed on 1 lateral wall of central tube, the bottom end energy of impeller 3 Enough between central tube 1 and slips 2, the top of impeller 3, which is fixed on, salvages on pipe 4, and salvages between pipe 4 and central tube 1 It is connected by setting pin 11, when driving force effect is when salvaging pipe 4, can cut and set pin 11, and push impeller 3, the bottom end of impeller 3 can strut slips 2 so that 2 clamping internal surface of sleeve pipe of slips.

Channel of the central tube 1 as fluid can be tubulose, and can be vertically extending, and outer diameter is less than set The size of bore, to easily be stretched into casing.

Critical piece of the slips 2 as clamping internal surface of sleeve pipe, is connected on the lateral wall of central tube 1, and may include Fixed part 21 and movable part 22, fixed part 21 can be fixed on central tube 1, and movable part 22 can be connected to the top of fixed part 21 End.The structure of slips 2 can be ring-type there are many such as slips 2, be set in outside central tube 1, and upper part can be with shape At there is multiple gap, gap can extend along the direction for being parallel to axis, and the length of the gap is less than the length of slips 2, i.e., Gap can not run through slips 2, and the bottom end of slips 2 is still complete annular；The bottom end of slips 2 can form fixed part 21, Fixed part 21 can be fixed on central tube 1 by way of being spirally connected or welding, and part of the top with gap of slips 2 can Movable part 22 is formed, movable part 22 can expand outwardly under force, with clamping internal surface of sleeve pipe.In another example the work of slips 2 Dynamic portion 22 can be relatively fixed portion 21 and slide in and out, to change the size that slips 2 protrudes central tube 1 so that movable part 22 can With clamping internal surface of sleeve pipe.

Impeller 3 as pushing the component that expands outwardly of movable part 22, bottom end can be located at movable part 22 and center Between pipe 1, and pushing part 21 can move movable part 22 being pushed outwardly with respect to central tube 1.The structure of impeller 3 can be with There are many, such as impeller 3 can be provided with multiple cyclic annular raised lines on the outer surface, the inner wall table of impeller 3 is provided with sliding block, The sliding slot coordinated with sliding block is formed on central tube 1, sliding slot extends in the axial direction, when impeller 3 is along the axis side of central tube 1 To when movement, sliding block is moved relative to sliding slot, can be played cyclic annular raised line and is caught between central tube 1 and movable part 22 so that activity Portion 22 can outwardly protrude and clamping internal surface of sleeve pipe, in another example the inner surface of impeller 3 can be provided with internal thread, outer surface can To be provided with above-mentioned cyclic annular raised line, the outer surface of central tube 1 can be provided with external screw thread, and impeller 3 can rely on screw-thread fit It is rotated relative to central tube 1 and cyclic annular raised line is caught between central tube 1 and movable part 22 so that movable part 22 can be outside It protrudes and clamping internal surface of sleeve pipe.

Salvage pipe 4 as connect impeller 3 critical piece, can be set in outside central tube 1, bottom end can with push away The top of moving part 3 is fixedly connected, such as be may be used and be spirally connected or the mode of pin joint is realized and is fixedly connected with fixing end.In addition, During hanger fixation kit is put into underground, in order to improve the supporting role to hanger fixation kit, pipe 4 is salvaged It can also be connect with central tube 1 by setting pin 11.When hanger fixation kit is put into underground predeterminated position, can pass through Driving force, which pushes, salvages pipe 4, when driving force is more than the shearing force for setting pin 11, sets pin 11 and is cut, make its drive Impeller 3 is moved with respect to central tube 1, to complete to set.

Meanwhile in order to prevent after driving force disappearance, between casing and movable part 22 under the action of pressure, 3 meeting of impeller Opposite central tube 1 moves upwards so that slips 2 is unable to the case where clamping internal surface of sleeve pipe and occurs, between impeller 3 and central tube 1 Or retaining mechanism can be provided between impeller 3 and movable part 22, the structure of retaining mechanism can there are many, such as it can Think the telescopic pin being arranged on impeller 3, pin hole can be provided on central tube 1 or movable part 22, the position of pin hole can To be configured according to casing inner diameter size so that when impeller 3 is moved to 2 clamping casing of slips, telescopic pin can be just Alignment pin holes, and stretch into pin hole, it prevents that relative motion occurs between impeller 3 and central tube 1.

When hanger fixation kit lower going-into-well bottom predeterminated position, pipe 4 is salvaged in the driving that can exert a force so that sets pin 11 It cuts, salvaging pipe 4 can move with respect to central tube 1, and the bottom end due to salvaging pipe 4 is fixedly connected with impeller 3, can be driven and be pushed away Moving part 3 is moved with respect to central tube 1, so that movable part 22 is expanded outwardly to be contacted with internal surface of sleeve pipe, when 22 clamping of movable part After casing, movable part 22 and impeller 3 can be relatively fixed using retaining mechanism, can then cancel driving force, complete to sit Envelope.

Hanger fixation kit provided in this embodiment, by the way that central tube is arranged, slips, salvages pipe and impeller；Its In, slips includes the movable part with the fixed fixed part of central tube lateral wall and positioned at the fixed part top, impeller Between the centrally disposed pipe in bottom end and movable part, salvage pipe connect with central tube by setting pin, and salvaging pipe bottom end and The top of impeller is fixedly connected, and impeller can be pushed under the action of driving force by salvaging pipe so that movable part is to far from The direction of heart pipe is moved, and with clamping internal surface of sleeve pipe, realization packer fixation kit is fixedly connected with casing, and impeller and work It is additionally provided with retaining mechanism between dynamic portion or between impeller and central tube so that after driving force disappears, impeller and work Dynamic portion can keep being relatively fixed, and improve the clamping effect of hanger fixation kit.

Fig. 3 is the schematic diagram of Fig. 2.Incorporated by reference to Fig. 3, further, as the mode that is preferably carried out of retaining mechanism, push The outer surface of part 3 is taper, and the cross-sectional area of taper is gradually reduced from top to bottom end, the inner surface and impeller of movable part 22 2 outer surface fitting, and the angle between 1 axis of the outer surface of impeller 3 and central tube connects less than movable part 22 with impeller 3 The arc-tangent value of contacting surface friction coefficient, and the outer surface of impeller 3 and the inner surface of movable part 22 collectively form retaining mechanism.

Specifically, retaining mechanism can be formed by movable part 22 and 3 contact surface of impeller.The outer surface of impeller 3 can be with For tapered slope, cross-sectional area can gradually increase from bottom end to top.The inner surface of movable part 22 can be and impeller 3 Outer surface fitting taper, and the angle between 1 axis of the outer surface of impeller 3 and central tube be less than movable part 22 with push The arc-tangent value of 3 contact surface friction coefficient of part so that the angle α of taper and 1 axis of central tube is less than Self-locking angle, and Self-locking angle Size is related with the friction coefficient μ of 3 contact surface of impeller with movable part 22, specifically can be with reference chart 3.

Frictional force f=normal pressure F* friction coefficient μs, gravity G decompose component F '=gravity G*sin α of direction. Frictional force f>Component F ' forms locking phenomenon, can extrapolate α<arctanμ.

At this point, after setting completion driving force disappearance, will not occur opposite transport between impeller 3 and movable part 22 It is dynamic, to realize being fixedly connected for hanger fixation kit and casing.

In addition, the top for salvaging pipe 4 protrudes from central tube 1, and the inner surface at the end is provided with for solid with fishing tool Surely the interconnecting piece 41 connected.

Specifically, it when hanger fixation kit breaks down in needs salvaging to ground, salvages, can make for convenience It is protruding upward in central tube 1 to salvage pipe 4, and its inner surface is provided with interconnecting piece 41, interconnecting piece 41 is solid with fishing tool Surely buckle or screw thread for connecting etc., are not specifically limited herein.Central tube 1 can be ladder-type structure, the axis of two sections of ladders At shoulder can as the top limiting section of impeller 3, after by fishing tool with salvaging pipe 4 and being fixedly connected, can will pass through to Upper lifting salvages pipe 4 and impeller 3 is driven to be moved up with respect to central tube 1 so that movable part 22 can be to close to 1 outside of central tube It moves in the direction of wall so that slips 2 is detached with casing, realizes deblocking.When impeller 3, which is moved to, supports 1 shaft shoulder of central tube, after Continuous move up can drive central tube 1 to move upwardly together, and to propose hanger fixation kit outside well, realize and salvage.

On the basis of the above embodiments, the outer surface of movable part 22 is provided with protrusion 221.The shape of protrusion 221 can be with There are many, such as tip is towards the capitate of casing or triangular prism shaped etc..Protrusion 221 can improve rubbing between casing and slips 2 Power is wiped, fixed effect is increased.

Further, the quantity of protrusion 221 is multiple, and multiple raised 221 circumferentially spaced settings are in movable part 22 On, further enhance the fixed effect of slips 2 and casing.

In addition, the quantity of slips 2 is multiple, multiple slips 2 are circumferentially spaced to be located on central tube 1 so that suspension The better reliability of device fixation kit.

Fig. 4 is the overall structure diagram of the utility model hanger；Give up in being convex 4 overall structures of component of Fig. 5 are shown It is intended to；Fig. 6 is the junction structural schematic diagram of the utility model hanger fixation kit and component of giving up.

Incorporated by reference to fig. 4 to fig. 6, the present embodiment also provides a kind of hanger, including：It gives up component and hanger fixation group Part, component of giving up are connected to the top of hanger fixation kit, and component of giving up is for generating driving force, so that hanger fixation group Part is fixedly connected with casing.

Specifically, the structure and function of hanger fixation kit is same as the previously described embodiments, and details are not described herein, group of giving up Part is connected to the top of hanger fixation kit, can provide driving force for it, the structure of component of giving up can there are many, such as Can be the fluid pressure drive device using hydraulic coupling, or the motor driver for utilizing electric power does not do specific limit herein It is fixed.

Hanger provided in this embodiment, by the way that give up component and hanger fixation kit is arranged, wherein hanger is fixed Component includes central tube, slips, salvages pipe and impeller；Slips includes and the fixed fixed part of central tube lateral wall and position Movable part in the fixed part top between the centrally disposed pipe in bottom end and movable part of impeller, salvages pipe and central tube By setting pin connection, and the bottom end for salvaging pipe is fixedly connected with the top of impeller, and salvaging pipe can be in the work of driving force With lower promotion impeller so that movable part is moved to the direction far from central tube, with clamping internal surface of sleeve pipe, realizes that packer is fixed Component is fixedly connected with casing, and locking machine is additionally provided between impeller and movable part or between impeller and central tube Structure so that after driving force disappears, impeller can keep being relatively fixed with movable part, improve the clamping of hanger fixation kit Effect.

Further, component of giving up includes：Connector 5 and actuator 6；The top of connector 5 be provided with for it is outer The connector 51 of portion's equipment connection, the bottom end of connector 5 is stretched into central tube 1, and connector 5 passes through pin 52 and the central tube of giving up 1 is fixedly connected, and actuator 6 is sheathed on outside connector 5, and the bottom end of actuator 6 and the tip contact for salvaging pipe 4,6 energy of actuator Enough opposite joints 5 are vertically moved salvages pipe 4 to push.

Specifically, component of giving up may include the connector 5 that one end is fixedly connected with central tube 1, the other end of connector 5 It can be provided with connector 51, connector 51 can be connect by way of being clamped or being spirally connected with external equipment；Connector 5 and central tube It can be fixedly connected by pin 52 of giving up between 1.

Actuator 6 is set in outside connector 5, and the tip contact of its bottom end and salvaging pipe 4, actuator 6 opposite can connect Fitting 5 moves downward, to push the salvaging realization of pipe 4 to set.The motion mode of 6 opposite joints 5 of actuator and impeller 3 With the kinematic similitude of central tube 1, the movement of impeller 3 and central tube 1 is specifically may refer to, details are not described herein.

When going into the well, component of giving up is put into togerther with hanger fixation kit in well, after reaching predeterminated position, actuator 6 It can be moved with opposite joints 5, be moved downward to which pipe 4 will be salvaged, cutting sets pin 11, and then impeller 3 can strut Slips 2, makes it be fixedly connected with casing, and realization is set, and after the completion of setting, external equipment can be used to lift group of giving up upwards Part so that pin 52 of giving up is cut, and component of giving up is detached with hanger fixation kit, and component of giving up can be lifted to ground, complete At giving up, and it is simple in structure, it is easy to implement.

Further, closed annulus 7 is formed between connector 5 and actuator 6, be formed on connector 5 with The inlet opening 71 that annulus 7 is connected to.

Specifically, connector 5 can rely on hydraulic coupling to realize relative motion, such as the inner surface of actuator 6 with actuator 6 Formed fluted, 6 inner surface of actuator above groove and below groove can be fitted closely with the outer surface of connector 5, be made Form closed annulus 7 between 5 outer surface of groove and connector, in addition, being also formed on connector 5 and annulus The inlet opening 71 of 7 connections can be injected by inlet opening 71 into annulus 7 when it is required that actuator 6 moves downward Liquid so that the volume of annulus 7 becomes larger, and actuator 6 is promoted to move, and can so that movement is more flat by hydraulic-driven Surely, and driving force is big.

Further, connector 5 may include upper tube 53, central tube 54 and lower tube 55, be sequentially connected, top Connector 51 is provided on pipe 53, lower tube 55 is connect by pin 52 of giving up with central tube 1.Actuator 6 may include first Points 61 and second part 62, first part 61 be set in outside upper tube 53, second part 62 is set in outside central tube 54, first It is formed with annulus 7 between part 61 and upper tube 53, inlet opening 71,62 lower section of second part are formed on upper tube 53 It is contacted with pipe 4 is salvaged.When need to set, first part 61 pushes down on second part 62, and second part 62, which pushes, salvages pipe 4, real Existing slips 2 expands outwardly, and pushes more steady.

Further, the sealing ring 72 for sealing ring space 7 is additionally provided between connector 5 and actuator 6, to increase Add sealing effect.

In the present invention, term " first ", " second " are used only for the purpose of description, and should not be understood as instruction or Imply relative importance；The indicating positions such as term "upper", "lower", "top", "bottom" or position relationship are side based on ... shown in the drawings Position or position relationship are merely for convenience of description the utility model, do not indicate or imply the indicated device or original paper is necessary With specific orientation, with specific azimuth configuration and operation；Unless otherwise clearly defined and limited, " installation ", " connection " Equal terms are broadly understood, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection. For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be Meaning.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation The description of mode ", " example ", " specific example " or " some examples " etc. means embodiment or example is combined to describe specific Feature, structure, material or feature are contained at least one embodiment or example of the utility model.In this specification In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.

Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (10)

1. a kind of hanger fixation kit, which is characterized in that including：Central tube, salvages pipe and impeller at slips；

The central tube is vertically arranged, and the slips includes fixed part and movable part, the fixed part be fixed on it is described in On the lateral wall of heart pipe, the moving part is in the top of the fixed part；And the outer surface of the movable part is used for clamping set Pipe；

The salvaging pipe sleeve is located at outside the central tube, and salvaging pipe is connect with the central tube by setting pin, institute The bottom end for stating salvaging pipe is fixedly connected with the top of the impeller, and the bottom end of the impeller is set to the central tube and institute Between stating movable part, and the salvaging pipe can be cut under the action of driving force and set pin and drive the impeller opposite The central tube movement, to push the movable part to be moved to the direction far from the lateral wall；

And locking machine is additionally provided between the impeller and the movable part or between the impeller and the central tube Structure, the retaining mechanism are used for after the driving force disappears so that the impeller is relatively fixed with movable part holding.

2. hanger fixation kit according to claim 1, which is characterized in that the outer surface of the impeller is taper, The cross-sectional area of the taper is gradually reduced from top to bottom end, the outer surface of the inner surface of the movable part and the impeller Fitting, and the angle between the outer surface of the impeller and the central tube axis is less than the movable part and the impeller The arc-tangent value of contact surface friction coefficient, and the inner surface of the outer surface of the impeller and the movable part collectively form it is described Retaining mechanism.

3. hanger fixation kit according to claim 2, which is characterized in that the top for salvaging pipe protrudes from described Central tube, and the inner surface at the end is provided with the interconnecting piece for being fixedly connected with fishing tool.

4. according to claim 1-3 any one of them hanger fixation kits, which is characterized in that the outer surface of the movable part It is provided with protrusion.

5. hanger fixation kit according to claim 4, which is characterized in that the quantity of the protrusion be it is multiple, it is multiple The protrusion is circumferentially spaced to be arranged on the movable part.

6. according to claim 1-3 any one of them hanger fixation kits, which is characterized in that the quantity of the slips is more A, multiple slips are circumferentially spaced to be located on the central tube.

7. a kind of hanger, which is characterized in that including：Give up component and according to claim 1-6 any one of them hang Device fixation kit, the component of giving up are connected to the top of the hanger fixation kit, and the component of giving up is for generating institute Driving force is stated, so that the hanger fixation kit is fixedly connected with described sleeve pipe.

8. hanger according to claim 7, which is characterized in that the component of giving up includes：Connector and actuator；

The top of the connector is provided with the connector for being connect with external equipment, the bottom end of the connector stretch into it is described in In heart pipe, and the connector is fixedly connected by pin of giving up with the central tube, and the actuator is sheathed on the connection Outside part, and the bottom end of the actuator and the tip contact for salvaging pipe, the actuator being capable of the relatively described connector edge Vertical movement is to push the salvaging to manage.

9. hanger according to claim 8, which is characterized in that be formed with envelope between the connector and the actuator The annulus closed is formed with the inlet opening being connected to the annulus on the connector.

10. hanger according to claim 9, which is characterized in that also set up between the connector and the actuator It is useful for sealing the sealing ring of the annulus.