Pipeline reamer

Abstract

The utility model discloses a pipeline reamer, which relates to the technical field of pipeline repair and comprises a connecting rod, a reaming component is fixedly mounted at the front end of the connecting rod, a pulley support is rotatably mounted on the outer surface of the connecting rod, and the pulley support is positioned on the rear side of the reaming component. By rotating the propelling reaming assembly, obstacles in the pipeline can be cut, a pipe hole allowing a new pipeline to pass through is formed, the pipe hole can be pulled into the new pipeline subsequently, the construction process of excavating and removing the obstacles can be avoided, and the device has the advantages that the workload is reduced, the construction period is shortened, the surrounding environment is not affected, and the construction cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair, in particular to a pipeline reamer. Background Art

[0002] Trenchless pipeline repair technology is a method of underground pipeline repair that can repair underground pipelines without digging the ground.

[0003] The pipe-breaking method in trenchless pipeline repair technology is a method that uses pipe-breaking equipment to break or cut the original pipe from the inside of the inner pipe, squeeze the original pipe fragments into the surrounding soil to form a pipe hole, and simultaneously pull in a new pipe;

[0004] When the pipe-breaking method is used to repair a pipeline, if the original pipeline is seriously misaligned, the new pipeline pulled in will also be seriously misaligned. If a local collapse is encountered, it is necessary to excavate the local collapse to insert pulling ropes or pull rods. This process requires a lot of labor and time. Therefore, in order to solve the above problems, we propose a pipeline reamer. Utility Model Content

[0005] The utility model aims to solve the defects in the prior art and provides a pipeline reamer.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pipe reamer comprises a connecting rod, a reaming assembly is fixedly mounted on the front end of the connecting rod, a pulley bracket is rotatably mounted on the outer surface of the connecting rod, and the pulley bracket is located at the rear side of the reaming assembly.

[0008] Furthermore, the reaming assembly includes a hub, a plurality of blades are fixedly installed inside the hub, a connecting pipe is fixedly installed between the plurality of blades, and the connecting pipe is fixedly sleeved on the front end of the connecting rod.

[0009] Furthermore, a plurality of cutter heads are welded to the outer surface of the blade and the inner surface of the hub, and a drill bit is fixedly mounted on the front end of the connecting pipe.

[0010] Furthermore, the pulley bracket comprises a sleeve, a plurality of mounting brackets are fixedly mounted at equal intervals on the outer surface of the sleeve, and the sleeve is rotatably mounted with a pulley via the mounting brackets.

[0011] Furthermore, a bearing is fixedly installed on the inner side of the sleeve, and the sleeve is rotatably installed on the outer surface of the connecting rod through the bearing.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model can cut the obstacles inside the pipeline by rotating and advancing the hole expanding component to form a pipe hole through which a new pipeline can pass, which is convenient for the subsequent pulling in of the new pipeline and can avoid the construction process of excavating and removing obstacles. It has the advantages of reducing workload, speeding up construction period, not affecting the surrounding environment, and saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 A three-dimensional diagram of the wheel hub of the present utility model;

[0017] Figure 3 It is a three-dimensional diagram of the pulley bracket of the utility model;

[0018] Figure 4 A three-dimensional diagram of a cutter head of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of the drill bit of the utility model.

[0020] In the figure: 1. connecting rod; 2. reaming assembly; 3. pulley bracket; 4. hub; 5. drill bit; 6. cutter head; 7. connecting pipe; 8. blade; 9. sleeve; 10. mounting frame; 11. pulley; 12. bearing. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0022] Reference Figure 1-5 A pipe reamer comprises a connecting rod 1, a reaming assembly 2 is fixedly mounted on the front end of the connecting rod 1, a pulley bracket 3 is rotatably mounted on the outer surface of the connecting rod 1, and the pulley bracket 3 is located at the rear side of the reaming assembly 2.

[0023] One end of the connecting rod 1 can be connected to an existing driving machine with a rotary output. By placing the reamer into the pipe and allowing the driving machine to drive the connecting rod 1 to rotate, the connecting rod 1 can cut obstacles in the pipe through the reaming assembly 2 to form a pipe hole through which a new pipe can pass, making it easier to pull the new pipe in later.

[0024] The pulley bracket 3 can support the reaming assembly 2. By pushing the connecting rod 1, the connecting rod 1 can transmit the forward thrust to the pulley bracket 3 to push the reaming assembly 2 forward. The connecting rod 1 can be a soft rod, so that the reamer can adapt to the curved pipe.

[0025] The reaming assembly 2 includes a hub 4, a plurality of blades 8 are fixedly mounted inside the hub 4, a connecting tube 7 is fixedly mounted between the plurality of blades 8, and the connecting tube 7 is fixedly sleeved on the front end of the connecting rod 1. A plurality of cutter heads 6 are welded to the outer surface of the blades 8 and the inner surface of the hub 4, and a drill bit 5 is fixedly mounted at the front end of the connecting tube 7.

[0026] The connecting rod 1 can drive the hub 4 to rotate through the connecting pipe 7 and the blades 8. The hub 4 and the blades 8 can cause the cutter head 6 and the drill bit 5 to rotate. The rotating cutter head 6 and the drill bit 5 can cut and drill the obstacles in the pipeline, avoiding the construction process of excavating and removing obstacles. It has the advantages of reducing workload, speeding up construction period, not affecting the surrounding environment, and saving construction costs.

[0027] The pulley bracket 3 includes a sleeve 9, and a plurality of mounting brackets 10 are fixedly mounted on the outer surface of the sleeve 9 at equal intervals. The sleeve 9 is rotatably mounted with a pulley 11 through the mounting brackets 10. A bearing 12 is fixedly mounted on the inner side of the sleeve 9, and the sleeve 9 is rotatably mounted on the outer surface of the connecting rod 1 through the bearing 12.

[0028] The pulley bracket 3 can slide on the inner wall of the pipe to reduce the resistance of the reamer when it moves forward, making it easier for the reamer to rotate and push forward.

Claims

1. A pipe reamer, comprising a connecting rod (1), characterized in that: A hole reaming assembly (2) is fixedly mounted on the front end of the connecting rod (1), a pulley bracket (3) is rotatably mounted on the outer surface of the connecting rod (1), and the pulley bracket (3) is located at the rear side of the hole reaming assembly (2).

2. A pipe reamer according to claim 1, characterized in that: The reaming assembly (2) comprises a hub (4), a plurality of blades (8) are fixedly mounted inside the hub (4), a connecting tube (7) is fixedly mounted between the plurality of blades (8), and the connecting tube (7) is fixedly sleeved on the front end of the connecting rod (1).

3. A pipe reamer according to claim 2, characterized in that: A plurality of cutter heads (6) are welded to the outer surface of the blade (8) and the inner surface of the hub (4), and a drill bit (5) is fixedly mounted on the front end of the connecting pipe (7).

4. A pipe reamer according to claim 1, characterized in that: The pulley bracket (3) comprises a sleeve (9), a plurality of mounting brackets (10) are fixedly mounted at equal intervals on the outer surface of the sleeve (9), and a pulley (11) is rotatably mounted on the sleeve (9) via the mounting brackets (10).

5. A pipe reamer according to claim 4, characterized in that: A bearing (12) is fixedly mounted on the inner side of the sleeve (9), and the sleeve (9) is rotatably mounted on the outer surface of the connecting rod (1) via the bearing (12).

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