CN217151886U

CN217151886U - Sleeve pipe plastic head

Info

Publication number: CN217151886U
Application number: CN202220806928.9U
Authority: CN
Inventors: 李栋; 张雨生; 刘国永; 马永生; 李勇彬; 张汝阳; 魏荣兵
Original assignee: Puyang Donghao Mechanical & Electronic Co ltd
Current assignee: Puyang Donghao Mechanical & Electronic Co ltd
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-08-09
Anticipated expiration: 2032-04-09

Abstract

The utility model relates to a sleeve pipe plastic technical field, concretely relates to sleeve pipe plastic head. Including the integer pipe, the integer pipe includes the integer ring of a plurality of concentric settings, two adjacent plastic ring threaded connection and through only changeing the fix with screw, a plurality of rectangular channels have been seted up to the equipartition on the integer ring, be provided with the roller in the rectangular channel, fixedly connected with top connection can be dismantled to integer pipe upper end, top connection upper end internal fixation has last fender ring, the actuating lever runs through and keeps off the ring, it keeps off the ring down to be fixed with on the actuating lever of last fender ring below, it is equipped with the spring to go up to keep off the cover on the actuating lever between ring and the lower fender ring, the equal slip of plastic intra-annular is provided with the inner prop, inner prop outer fringe and roller outer fringe contact, two adjacent inner props pass through connecting rod fixed connection, the inner prop and the actuating lever fixed connection of top. The utility model discloses, simple structure, convenient to use, the roller of convenient damage is changed.

Description

Sleeve pipe plastic head

Technical Field

The utility model relates to a sleeve pipe plastic technical field, concretely relates to sleeve pipe plastic head.

Background

The casing of the oil-water well inevitably has casing deformation such as: shrinkage, collapse, bending, fracture, and dislocation, among others, and the cause of casing deformation are many, among which the main causes are: stratum moving and moving, earthquake, fracturing, stratum density change, high temperature (expansion with heat and contraction with cold) of steam injection and thermal recovery and the like. The casing deformation well is mostly generated in a thermal recovery block, the casing deformation rate can reach about 70%, the casing deformation seriously affects production, the deformation part of the casing is mainly generated near the upper part of a perforation well section of an oil layer, and after the casing is perforated in the well section of the oil layer, a blast hole can deform the casing due to instantaneous rapid explosion of explosives and the impact action of perforating bullets during perforation. When the casing pipe is seriously deformed, the casing pipe can be broken by mistake and transversely fractured, so that the phenomenon of blockage can occur when the oil production pipe and the oil production tool go into the well, and the normal production of oil and water is influenced.

At present, the casing reshaping mainly comprises a mechanical expansion method and a gunpowder explosion expansion method, wherein the most common mechanical expansion method is to install an expander at the lowest end of an oil pipe (or a drill rod), and an operating machine on the ground drives a lower pipe column to impact an oil well casing deformation part by utilizing the weight and inertia of the oil pipe or the drill rod, but the repair success rate of the method is low;

also can use among the prior art plastic tubular column cooperation plastic head to carry out the sleeve pipe plastic, but current plastic head generally all can install a plurality of rollers on it, when carrying the plastic tubular column, the roller can be to the intraductal retraction of plastic to conveniently carry the plastic tubular column, when carrying out the plastic to the pipeline, the roller atress of plastic head is great, and easy damage, the inconvenient change of roller of current plastic head.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a simple structure, convenient to use, the convenient sleeve pipe plastic head of changing is carried out the roller that damages.

In order to realize the purpose, the utility model provides a technical scheme is:

a sleeve shaping head comprises a shaping tube, the lower end of the shaping tube is detachably and fixedly connected with a guide conical head, the shaping tube comprises a plurality of shaping rings which are concentrically arranged, two adjacent shaping rings are in threaded connection and are fixed through rotation-stopping screws, a plurality of rectangular grooves are uniformly distributed on the shaping rings, two vertical groove walls which are opposite to the rectangular grooves are respectively provided with a long groove, the length direction of each long groove is parallel to the radial direction of the shaping ring, a roller is arranged in each rectangular groove, a pin shaft which is concentric with the roller is fixed on the roller and penetrates through the roller, the end part of each pin shaft is arranged in the long groove on one side of the pin shaft in a sliding manner, the upper end of the shaping tube is detachably and fixedly connected with an upper connector, an upper retaining ring is fixed in the upper end of the upper connector, a driving rod penetrates through the upper retaining ring, a lower retaining ring is fixed on the driving rod below the upper retaining ring, a spring is sleeved on the driving rod between the upper retaining ring and the lower retaining ring, and the lower retaining ring is contacted with the upper end of the shaping tube, the shaping ring is internally and slidably provided with inner columns, the outer edges of the inner columns are in contact with the outer edges of the rollers, two adjacent inner columns are fixedly connected through a connecting rod, and the uppermost inner column is fixedly connected with the driving rod.

Specifically, the outer edge of the lower retaining ring is in sliding contact with the inner edge of the upper joint, and the outer edge of the driving rod is in sliding contact with the inner edge of the upper retaining ring.

Specifically, the upper end of the shaping pipe is in threaded connection with the upper joint and is fixed through a rotation stopping screw, and the lower end of the shaping pipe is in threaded connection with the guide conical head and is fixed through the rotation stopping screw.

Specifically, the outer edge of the inner column is in sliding contact with the inner edge of the shaping ring in which the inner column is located.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, simple structure, convenient to use when lifting the tubular column, the roller can be to the first inside motion of plastic to reduce the first holistic diameter of plastic, when can preventing to lift the plastic pipe, the plastic head receives great resistance, can dismantle the plastic ring that damages the roller place, and the roller of damage is changed to the convenience.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic end view of the integral ring.

Detailed Description

As shown in the figure 1-2, the sleeve shaping head comprises a shaping pipe, the lower end of the shaping pipe is detachably and fixedly connected with a guide conical head 1, the lower end of the shaping pipe is in threaded connection with the guide conical head 1 and is fixed through a rotation stopping screw, the shaping pipe comprises a plurality of shaping rings 2 which are concentrically arranged, two adjacent shaping rings 2 are in threaded connection and are fixed through the rotation stopping screw, a plurality of rectangular grooves 3 are uniformly distributed on the shaping rings 2, two vertical groove walls opposite to the rectangular grooves 3 are respectively provided with a long groove 4, the length direction of the long groove 4 is parallel to the radial direction of the shaping ring 2, a roller 6 is arranged in the rectangular groove 3, a pin shaft 5 which is concentric with the roller 6 is fixed on the roller 6, the pin shaft 5 penetrates through the roller 6, the end part of the pin shaft 6 is slidably arranged in the long groove 4 on one side of the pin shaft, the upper end of the shaping pipe is detachably and fixedly connected with an upper joint 8, the upper end of the shaping pipe is in threaded connection with the upper joint 8 and is fixed through the rotation stopping screw, an upper retaining ring 9 is fixed in the upper end of the upper joint 8, a driving rod 12 penetrates through the upper retaining ring 9, a lower retaining ring 11 is fixed on the driving rod 12 below the upper retaining ring 9, a spring 10 is sleeved on the driving rod 12 between the upper retaining ring 9 and the lower retaining ring 11, the outer edge of the lower retaining ring 11 is in sliding contact with the inner edge of the upper joint 8, the outer edge of the driving rod 12 is in sliding contact with the inner edge of the upper retaining ring 9, the lower retaining ring 11 is in contact with the upper end of the shaping tube, inner columns 13 are arranged in the shaping ring 2 in a sliding manner, the outer edge of each inner column 13 is in sliding contact with the inner edge of the shaping ring 2 where the inner column 13 is located, the outer edge of each inner column 13 is in contact with the outer edge of each roller 6, two adjacent inner columns 6 are fixedly connected through connecting rods 7, and the uppermost inner column 6 is fixedly connected with the driving rod 12.

The utility model discloses during the use, with actuating lever 12 and plastic tubular column fixed connection, under spring 10's elastic force effect, the shaping pipe remains stable with actuating lever 12, interior post 13 blocks roller 6 this moment, make shaping head and plastic tubular column to the descending in-process of cover intraductal, the overhead roller 6 of shaping can extrude the sleeve pipe of deformation, thereby carry out the plastic to the sleeve pipe of deformation, when carrying out the shaping tubular column, the sleeve pipe by the shaping has great pressure to roller 6, thereby make the shaping pipe remain motionless, actuating lever 12 makes interior post 13 and connecting rod 7 go upward in the shaping pipe, spring 10 is compressed, after interior post 13 moves to roller 6 tops, roller 6 can be to 2 axle center movements of plastic ring, thereby make the holistic diameter of shaping head reduce, later can conveniently take out the shaping tubular column. When the damaged roller 6 needs to be replaced, the rotation stopping screws on the shaping ring 2 where the damaged roller 6 is located are detached, and then the shaping ring 2 where the damaged roller 6 is located is taken down and then the whole shaping ring is replaced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A sleeve shaping head comprises a shaping tube, the lower end of the shaping tube is detachably and fixedly connected with a guide conical head, the sleeve shaping tube is characterized in that the shaping tube comprises a plurality of shaping rings which are concentrically arranged, two adjacent shaping rings are in threaded connection and are fixed through rotation-stopping screws, a plurality of rectangular grooves are uniformly distributed on the shaping rings, two vertical groove walls opposite to the rectangular grooves are respectively provided with a long groove, the length direction of the long groove is parallel to the radial direction of the shaping rings, a roller is arranged in the rectangular groove, a pin shaft which is concentric with the roller is fixed on the roller, the end part of the pin shaft penetrates through the roller, the end part of the pin shaft is slidably arranged in the long groove on one side of the pin shaft, the upper end of the shaping tube is detachably and fixedly connected with an upper joint, an upper retaining ring is fixed in the upper joint, a driving rod penetrates through the upper retaining ring, a lower retaining ring is fixed on the driving rod below the upper retaining ring, a spring is sleeved on the driving rod between the upper retaining ring and the lower retaining ring, and the lower retaining ring is contacted with the upper end of the shaping tube, the shaping ring is internally and slidably provided with inner columns, the outer edges of the inner columns are in contact with the outer edges of the rollers, two adjacent inner columns are fixedly connected through a connecting rod, and the uppermost inner column is fixedly connected with the driving rod.

2. The cannula shaping head according to claim 1 wherein the outer edge of the lower retainer is in sliding contact with the inner edge of the upper connector and the outer edge of the drive rod is in sliding contact with the inner edge of the upper retainer.

3. The cannula shaping head as set forth in claim 1, wherein the upper end of the shaping tube is threadedly coupled to the upper adapter and fixed thereto by means of a rotation stop screw, and the lower end of the shaping tube is threadedly coupled to the guide cone head and fixed thereto by means of a rotation stop screw.

4. The cannula sizing head as in claim 1, wherein the outer rim of the inner post is in sliding contact with the inner rim of the sizing ring in which it is located.