Field restricted location drag tube turning device

Abstract

A site limited position drag pipe direction changing device, it includes winch, base beam, fixed pulley and fixed pulley base, and excavator; winch is placed on base beam, base beam is across on well mouth; fixed pulley base is connected together with excavator head. Winch base beam is placed on well mouth, excavator will fixed in head fixed pulley base, put into well, steel wire rope changes from horizontal direction to vertical direction through fixed pulley, through winch pulls steel wire rope, and pulls pipe into well from directional drilling hole, solves the difficult problem that drag pipe construction out of gun mouth site is limited, and cannot pull pipe.

Description

Technical Field

[0001] This utility model belongs to the field of pipe-dragging construction technology and relates to a pipe-dragging direction-changing device in a site-restricted location. Background Technology

[0002] Currently, with the rise of urban renewal projects, many underground pipelines are constructed using directional drilling and pipe-pulling techniques. The construction principle is as follows: when the drilling site is limited and a circular arc duct cannot be formed, pipe pulling is not possible. In this case, a manhole is first constructed at the end of the straight section of the duct, and the device is placed at the manhole opening to pull the pipe into the manhole from the other end.

[0003] Currently, a pipe-pulling reversing device is involved, comprising a winch, a base beam for housing the winch, a fixed pulley and a fixed pulley base, and a pulley base fixed to the excavator head. This device ensures that the wire rope changes from a horizontal to a vertical direction while facilitating rapid movement of the device. However, although the pipe used for pulling is a flexible material and cannot be bent significantly, the drill outlet in directional drilling must be a smooth, curved shape to ensure the pipe is smoothly pulled out of the ground. In locations with limited space at the drill outlet, a smooth, curved pipe cannot be formed, making pipe pulling impossible. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a pipe-dragging and reversing device for locations with limited space. The device uses an excavator to put the fixed pulley base into the well, and uses a winch installed at the wellhead to pull the wire rope. The fixed pulley changes the direction of the wire rope, thereby dragging the pipe into the well.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a towing pipe reversing device for confined spaces, which includes a winch, a base beam, a fixed pulley and a fixed pulley base, and an excavator; the winch is placed on the base beam, and the base beam is supported across the well opening; the fixed pulley base is connected to the excavator head; the excavator is used to put the fixed pulley base equipped with the fixed pulley into the well.

[0006] The winch is powered by an electric motor or a diesel engine.

[0007] The winch pulls the wire rope, and the wire rope moves towards the winch with the fixed pulley as the fulcrum, dragging the pipe fixed on the wire rope into the well.

[0008] The fixed pulley base is perpendicular to the well wall.

[0009] The fixed pulley is located at the lower end of the fixed pulley base near the bottom of the well.

[0010] The wire rope wound on the winch passes through a fixed pulley and is connected to one end of the pipeline outside the well.

[0011] The base beam consists of two beams, one of which is fixed to a winch, and the steel wire rope wound on the winch scrapes against the other base beam.

[0012] First, fix the winch and power equipment to the base beam, then place the hoisted base beam on the wellhead. Next, place the base fixed to the excavator head pulley into the well, pull the wire rope on the winch vertically into the well, and then turn it into a horizontal direction through the pulley. Use the directional drill bit to pull the wire rope to the pipe inlet position, connect and fix the pipe to the wire rope, rotate the winch, and pull the wire rope to drag the pipe into the well.

[0013] The main beneficial effects of this utility model are as follows: By using a fixed pulley inside the well to change the steel wire rope from a horizontal to a vertical direction, the problem of being unable to carry out pipe-pulling construction in restricted locations at the directional drilling site is solved.

[0014] Fixing the fixed pulley base to the excavator arm satisfies the pulley's force requirements while utilizing the excavator arm's flexible extension and retraction, making it convenient for the pulley's placement and movement.

[0015] The simple winch is placed on a base at the wellhead and can be connected to an electric motor or diesel engine for flexible power acquisition. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1-Winder, 2-Base beam, 3-Excavator, 4-Pulley base, 5-Pulley, 6-Wire rope. Detailed Implementation

[0018] like Figure 1 As shown, a towing pipe reversing device for confined spaces includes a winch 1, a base beam 2, a fixed pulley 5 and a fixed pulley base 4, and an excavator 3; the winch 1 is placed on the base beam 2, which is supported across the wellhead; the fixed pulley base 4 is connected to the head of the excavator 3; the excavator 3 is used to place the fixed pulley base 4, which is equipped with the fixed pulley 5, into the well.

[0019] In a preferred embodiment, the winch 1 is powered by an electric motor or a diesel engine.

[0020] In a preferred embodiment, the winch 1 pulls the wire rope 6, and the wire rope 6 moves towards the winch 1 with the fixed pulley 5 as the fulcrum, thus dragging the pipe fixed on the wire rope 6 into the well.

[0021] In a preferred embodiment, the fixed pulley base 4 is perpendicular to the well wall. During use, the fixed pulley base 4 is close to the well wall, allowing the wire rope 6 to fully enter the well when pulling the pipe.

[0022] In a preferred embodiment, the fixed pulley 5 is located at the lower end of the fixed pulley base 4 near the bottom of the well. During use, the fixed pulley 5 is positioned at the lower end of the fixed pulley base 4, resulting in a smaller traction angle for the wire rope 6 and preventing interference between the wire rope 6 and the well inlet.

[0023] In a preferred embodiment, the wire rope 6 wound on the winch 1 passes through the fixed pulley 5 and connects to one end of the pipe outside the well. During use, the pipe or tubing is located outside the well opening, and the wire rope 6 passes through the bottom of the well and connects to the pipe or tubing.

[0024] In a preferred embodiment, the base beam 2 consists of two beams, one of which is fixed to the winch 1. The steel wire rope 6 wound on the winch 1 makes scraping contact with the other base beam 2. During use, if there is mud adhering to the steel wire rope 6, it can be scraped off by the base beam 2 and cleaned in a timely manner.

[0025] Example 1, First, fix the winch 1 and power equipment on the base, place the hoisting base beam 2 on the well opening, then put the fixed pulley base 4 fixed to the excavator head into the well, pull the wire rope on the winch 1 vertically into the well, and change it to a horizontal direction through the fixed pulley 5. Use the directional drill bit to pull the wire rope to the pipe inlet position, connect and fix the pipe to the wire rope, rotate the winch 1, and pull the wire rope to drag the pipe into the well.

[0026] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A towing pipe reversing device for confined spaces, characterized in that: It includes a winch (1), a base beam (2), a fixed pulley (5) and a fixed pulley base (4), and an excavator (3); the winch (1) is placed on the base beam (2), which is supported across the wellhead; the fixed pulley base (4) is connected to the head of the excavator (3); the excavator (3) is used to put the fixed pulley base (4) with the fixed pulley (5) into the well.

2. The towing pipe reversing device for restricted locations according to claim 1, characterized in that: The winch (1) is powered by an electric motor or a diesel engine.

3. The towing pipe reversing device for restricted locations according to claim 1, characterized in that: The winch (1) pulls the wire rope (6), and the wire rope (6) moves towards the winch (1) with the fixed pulley (5) as the fulcrum, dragging the pipe fixed on the wire rope (6) into the well.

4. The towing pipe reversing device for restricted locations according to claim 1, characterized in that: The fixed pulley base (4) is perpendicular to the well wall.

5. The towing pipe reversing device for restricted locations according to claim 1, characterized in that: The fixed pulley (5) is located at the lower end of the fixed pulley base (4) near the bottom of the well.

6. The towing pipe reversing device for restricted locations according to claim 1, characterized in that: The wire rope (6) wound on the winch (1) passes through the fixed pulley (5) and is connected to one end of the pipeline outside the well.

7. The towing pipe reversing device for restricted locations according to claim 3, characterized in that: The base beam (2) consists of two beams, one of which is fixed to the winch (1), and the wire rope (6) wound on the winch (1) scrapes against the other base beam (2).

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