Large-pipe-diameter accurate butt joint tool in municipal drainage engineering

Abstract

The utility model relates to the technical field of municipal pipeline construction, in particular to a large-pipe-diameter accurate butt joint tool in municipal drainage engineering. Comprising a fixed steel beam clamped to the end of a fixed pipeline and a tensioned steel beam clamped to the tail end of a to-be-installed pipeline, and two sets of tensioning mechanisms are symmetrically arranged in the pipeline and located between the fixed steel beam and the tensioned steel beam along the axis. A laser range finder opposite to the fixed pipeline is arranged on the inner side face of the tensioned steel beam and located between the tensioning mechanism and the adjacent pipe wall. The fixed steel beam and the tensioned steel beam which are connected in a clamped mode are tensioned through the tensioning mechanisms, the to-be-installed pipeline is pulled towards the fixed pipeline side, the working states of the two tensioning mechanisms are observed through the laser range finder, the difference between the tensioning distances of the two tensioning mechanisms is prevented, and the butt joint precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal pipeline construction, in particular to a large-diameter precision docking tool in municipal drainage engineering. Background Art

[0002] PCCP is a composite pipe, the full name is prestressed steel cylinder concrete pipe, which is widely used in water delivery projects. This high-pressure, large-diameter, long-distance water delivery and water diversion pipeline is also widely used in agricultural water delivery projects, urban water diversion and supply projects, large-scale drainage and pressure sewage projects, and circulating water pipeline projects of large thermal power plants and nuclear power plants. It has become the preferred pipe material for laying high-pressure and large-diameter pipeline projects in my country, meeting the needs of my country's infrastructure construction.

[0003] When installing large-diameter PCCP pipes, the socket connection is a difficult construction process. Due to the large diameter and heavy weight of the pipe, it is difficult to control during installation. It cannot be installed in one go using large machinery, making the pipe docking process difficult and hard to operate. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem, thereby providing a large-diameter precision docking tool in a municipal drainage project that can ensure precise docking of pipes.

[0005] The utility model solves the above problems and adopts the following technical solutions:

[0006] A large-diameter precision docking tool for municipal drainage projects, comprising a fixed steel beam clamped on the end of a fixed pipe and a tensioned steel beam clamped on the end of a pipe to be installed, two sets of tensioning mechanisms are symmetrically arranged along the axis in the pipe and between the fixed steel beam and the tensioned steel beam, and a laser rangefinder is arranged on the inner side of the tensioned steel beam and between the tensioning mechanism and the adjacent pipe wall, opposite to the fixed pipe.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0008] The clamped fixed steel beam and the tensioned steel beam are tightened by the tensioning mechanism, and the pipeline to be installed is pulled toward the fixed pipeline. The working status of the two tensioning mechanisms is observed by a laser rangefinder to prevent the tensioning distance of the two tensioning mechanisms from being different, thus ensuring the accuracy of docking.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] The tensioning mechanism comprises a lifting ring symmetrically fixed on the inner side of the tensioned steel beam, a hand chain hoist is connected to the lifting ring, a steel wire rope is wound around the fixed steel beam, and a connecting piece is arranged between the steel wire rope and the hand chain hoist.

[0011] The connecting piece comprises a plurality of connecting rods, the ends of the connecting rods are bent into a hook shape, and connecting rings are arranged between the ends of adjacent connecting rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure between the fixed steel beam and the tension steel beam in the embodiment of the utility model;

[0014] Marked in the figure: fixed pipeline 1, pipeline to be installed 2, fixed steel beam 3, tension steel beam 4, laser rangefinder 5, hand hoist 6, wire rope 7, connecting rod 8. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] A large-diameter precision docking tool for municipal drainage projects, including a fixed steel beam 3 clamped on the end of a fixed pipe 1 and a tensioned steel beam 4 clamped on the end of a pipe 2 to be installed, the fixed steel beam 3 and the tensioned steel beam 4 are provided with a clamping interface used in conjunction with the end of the pipe, two sets of tensioning mechanisms are symmetrically arranged along the axis in the pipe and between the fixed steel beam 3 and the tensioned steel beam 4, a laser rangefinder 5 opposite to the fixed pipe is arranged on the inner side surface of the tensioned steel beam 4 and between the tensioning mechanism and the adjacent pipe wall, due to the large diameter of the pipe, the staff observes the laser rangefinder 5 in the pipe to adjust the tensioning mechanism to ensure the docking accuracy.

[0017] The tensioning mechanism includes a lifting ring symmetrically fixed on the inner side of the tensioned steel beam 4, a hand winch 6 is connected to the lifting ring, a steel wire rope 7 is wound around the fixed steel beam 3, a connecting piece is provided between the steel wire rope 7 and the hand winch 6, and the tensioned steel beam 4 is pulled toward the fixed steel beam 3 by the hand winch 6.

[0018] The connecting parts include a plurality of connecting rods 8, the ends of the connecting rods 8 are bent into hook shapes, connecting rings are provided between the ends of adjacent connecting rods 8, and the connecting rods 8 are made of steel chisels, so that the multiple connecting rods are more convenient to disassemble inside the pipeline later.

[0019] The clamped fixed steel beam and the tensioned steel beam are tightened by the tensioning mechanism, and the pipeline to be installed is pulled toward the fixed pipeline. The working status of the two tensioning mechanisms is observed by a laser rangefinder to prevent the tensioning distance of the two tensioning mechanisms from being different, thus ensuring the accuracy of docking.

[0020] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A large-diameter precision docking tool for municipal drainage engineering, comprising a fixed steel beam clamped at the end of a fixed pipe and a tension steel beam clamped at the end of a pipe to be installed, characterized in that: Two sets of tensioning mechanisms are symmetrically arranged along the axis in the pipeline and between the fixed steel beam and the tensioned steel beam. A laser rangefinder opposite to the fixed pipeline is arranged on the inner side surface of the tensioned steel beam and between the tensioning mechanism and the adjacent pipe wall. The tensioning mechanism includes lifting rings symmetrically fixed on the inner side surface of the tensioned steel beam, a hand winch is connected to the lifting ring, a steel wire rope is wound around the fixed steel beam, and a connecting piece is arranged between the steel wire rope and the hand winch.

2. The large diameter precision docking tool for municipal drainage engineering according to claim 1, characterized in that: The connecting piece comprises a plurality of connecting rods, the ends of the connecting rods are bent into a hook shape, and connecting rings are arranged between the ends of adjacent connecting rods.

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