CN202578606U

CN202578606U - Plastic pipe fishing device with barbed barrel

Info

Publication number: CN202578606U
Application number: CN 201220081296
Authority: CN
Inventors: 段王拴; 王联合; 赵强; 武光辉; 郝大学; 王飞; 吴长俊; 王伟智; 郝大干; 韩拴祥; 何涛
Original assignee: SHAANXI BINCHANG HUJIAHE MINING CO Ltd
Current assignee: SHAANXI BINCHANG HUJIAHE MINING CO Ltd
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2012-12-05
Anticipated expiration: 2022-03-06

Abstract

The utility model discloses a plastic pipe fishing device with a barbed barrel. When a coal mine shaft is in construction by adopting a freezing method, a plastic liquid feeding pipe needs to be drawn out after freezing is finished, so that water prevention and control work such as perforation grouting and the like is convenient to carry out. When the drawn pipe is recovered, the pipe is easily broken and is easy to fall, so that the pipe must be treated. The fishing device comprises a joint, a die tap, a barrel and a barb, wherein the barrel and the die tap are sequentially installed at the lower part of the joint and the upper part of the joint is connected with a drill rod. The fishing device is lowered and is contacted with the plastic pipe, the plastic pipe is hinged with the die tap under the lead of the barrel, and the plastic pipe is drawn out by the drill rod after the plastic pipe is fixed through the barb on the inner wall of the barrel and the die tap.

Description

A kind of plastic pipe fishing device with barb cylindrical shell

Technical field

The utility model belongs to a kind of plastic pipe fishing device with barb cylindrical shell, is specifically related to a kind ofly to be applied to when feed pipe reclaims in the freezing pipe behind the mine construction freezing method disconnected pipe to take place, the fishing device of the pipe that falls.

Background technology

Freeze-wellboring is before the pit shaft excavation, at first around desire excavation pit shaft, beats the freezing hole of some, and freezing pipe is installed in the hole; Hypothermic saline flows in freezing pipe, absorbs its heat on stratum on every side, in loose, moisture caving ground, forms and freezes cylinder; Freezing cylinder enlarges gradually and connects into cylinder-frost wall sealing, that satisfy design thickness and intensity; To resist soil, water pressure, completely cut off the contact of underground water and pit shaft, and under the protection of frost wall, carry out the pit shaft pick and build; So that safety is passed water bearing ground, is a kind of special sinking method.

Because artificial stratum freezing process compliance is strong; The frost wall that forms has good carrying, sealing performance, can reduce other temporary lining and drainage measure, can satisfy multiple fringe conditions and various engineering needs; Become the important construction that vertical is built under the complex geological condition already; But the freezing pipe outer ring space forms the conduit pipe with hydraulic connection, and vertical all aquifers from ground to the shaft bottom are fused; Water barrier originally loses impermeable role, need carry out the mine water disaster prevention.Pit shaft must be extracted plastics feed pipe in the freezing pipe before preventing harnessing the river; Be easy to cause feed pipe fracture when feed pipe is extracted on ground or drop; Owing to lack special tool, adopt drill bit to carry out the secondary cleaning bottom of hole usually, this method long construction period, expense is high, technical difficulty is big.

The utility model content

The technical problem that the utility model solved provides a kind of quick, efficient, reliable, and construction technology is simple, and the duration is short, can improve a kind of interior feed flow plastic pipe fishing device of coal mine shaft lining freezing hole with barb cylindrical shell of the feed pipe rate of recovery.

For solving above-mentioned technical problem, the technical scheme that the utility model is taked:

A kind of plastic pipe fishing device with barb cylindrical shell, its special character is: comprise joint, die nipple, cylindrical shell, barb, the joint bottom is installed cylindrical shell, die nipple successively, and top is connected with drilling rod.Compared with prior art; The utility model structure is unique; It is barb and the die nipple of joint on the cylinder inboard wall that the grabbing of fishing device dragged for parts; Barb on the cylinder inboard wall is responsible in the outside salvaging of plastic pipe and is firmly grasped plastic pipe, and the die nipple of joint is responsible at the inside of plastic tubes thread making plastic pipe being held, and plastic pipe is salvaged in the combination of inner and outside.

Cylindrical shell plays three effects under the effect of drilling rod pressure and rotation: the one, remove or the outer sand setting of plastic pipe and other foreign material, and expose tube head; The 2nd, mill off is partly overlapped in the bending on the tube head, torsional deflection; The 3rd, the plastic pipe that leans against on the freezing pipe is set right, the guiding tube head arrives and gets in the cylindrical shell.The feed flow plastic pipe gets into cylindrical shell under the guiding of cylindrical shell; Cylindrical shell barb and die nipple screw thread when pressurization is rotated, can produce upwards tractive force to plastic pipe, the guiding freezing pipe gets into the cylindrical shell depths; And firmly fixing by cylindrical shell barb and die nipple screw thread, finally pull out freezing pipe by drilling rod.

Description of drawings

Fig. 1 is the structural representation that the utlity model has the plastic pipe fishing device of barb cylindrical shell.

Drawing reference numeral: joint (1); Die nipple (2); Barb (3); Cylindrical shell (4).

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.

Referring to Fig. 1, a kind of plastic pipe fishing device with barb cylindrical shell of the utility model comprises joint (1), die nipple (2), barb (3), cylindrical shell (4), and cylindrical shell (4), die nipple (2) are installed on the joint (1) successively.

Above-mentioned joint (1) top is connected with drilling rod.

Workflow:

(1) transfers to fishing device apart from plastic pipe 0.3～0.5m position turn on pump circulation, the deposit around the flushing plastic pipe;

(2) termination of pumping is interrupted clockwise and rotates and slowly transfer fishing device, sounds out termination, plastic pipe top;

(3) go into according to salvaging side and the fishing device suspending weight changes, judge that cylindrical shell (4) gets into plastic pipe and salvages the position after, stop operating and apply the pressure of the drill of 2～3 tons, make plastic pipe get into cylindrical shell (4) inside;

(4) rotate several circles continuously, make barb (3) and die nipple (2) bite plastic pipe, carry fishing device on slowly, change to judge whether to drag for according to suspending weight and obtain, do not drag for when obtaining, can repeat above-mentioned steps;

(5) plastic pipe is lifted from shaft bottom 0.5～0.8m, fierce braking 2～3 times proves that plastics pipe clamp jail can normally pull out of hole, and can not repeat above operation if drag for;

(6) after salvaging successfully, should control trip-out speed, can not pause suddenly and put suddenly, the most handy hydraulic tongs shackle forbids to rotate rotating disk, when plastic pipe trips out well head, cleans fishing device with clear water.

Claims

1. the plastic pipe fishing device with cylindrical shell barb comprises joint (1), die nipple (2), barb (3), cylindrical shell (4), it is characterized in that: joint (1) bottom connects cylindrical shell (4), die nipple (2) successively, and top connects borer drill rod.