Arc-shaped pipeline transportation trolley

Abstract

The utility model discloses a kind of inner transport trolley of arc pipeline, including trolley chassis framework, still include two track wheels, trolley chassis framework bottom four corners end position are movably hinged and installed overturning arm, the inner side one end position of track wheel is equipped with motor, motor is used to drive track wheel rotation, trolley chassis framework bottom is equipped with push mechanism, push mechanism is used to adjust the overturning angle of overturning arm, the utility model is set two track wheels in trolley chassis framework bottom, the inclination angle of two track wheels can be adjusted by push mechanism, two track wheels can be in inclined state and stick to arc pipeline inner wall two sides, this structure can make two track wheels can adapt to different diameter arc pipeline, ensure the stability of walking process, reduce the damage caused to pipeline simultaneously, motor can drive track wheel rotation, so that trolley can move in arc pipeline.

Description

Technical Field

[0001] This utility model relates to the field of transport trolley technology, specifically a transport trolley for use inside an arc-shaped pipe. Background Technology

[0002] In municipal engineering, water conservancy and hydropower, oil and gas transportation, and other fields, the construction, inspection, and maintenance of large curved pipelines (such as tunnels, culverts, and oil pipelines) often require the transportation of equipment, materials, or personnel to specific locations inside the pipeline. In such applications, transport trolleys capable of moving inside the pipeline become an important auxiliary device.

[0003] Currently, the main technical solutions for transport trolleys used inside pipelines are as follows: Fixed-wheel trolleys: The traveling wheels and their support structure of this type of trolley are fixed, and the wheel hub profile is designed to match the inner wall of a pipe with a specific diameter. However, this structure has extremely poor adaptability and cannot be used for pipes of different diameters. Once the pipe diameter changes, the entire trolley becomes unusable or moves extremely unevenly, posing a risk of tipping over, and has very low versatility.

[0004] Rigid adjustable wheeled trolleys: Some improved trolleys allow manual adjustment of the wheel arm opening angle using simple threaded rods or other mechanisms to accommodate limited pipe diameter variations. However, this adjustment method is cumbersome, has low positioning accuracy and reliability, and when moving within curved pipes, the wheels may still only have line or point contact with the pipe wall, which can easily lead to slippage and cause scratches or pressure damage to the anti-corrosion layer or lining of the pipe wall due to stress concentration.

[0005] Specialized tracked trolleys: Some large equipment uses tracked walking mechanisms to increase contact area and traction, but their track wheels are usually horizontally fixed, mainly suitable for flat ground. When entering curved pipes, the horizontal tracks cannot fit well against the inner wall of the curve, resulting in the same problems of small contact area, poor stability, and easy damage to the pipe wall. In addition, tracked trolleys designed specifically for pipe interiors are often complex in structure and large in size, making it difficult to move them out of the pipe and move them on ordinary ground, thus limiting their flexibility and application scenarios. Utility Model Content

[0006] This invention provides a transport trolley for use inside an arc-shaped pipe, aiming to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A transport trolley for an arc-shaped pipe includes a trolley chassis frame and two tracked wheels. The two tracked wheels are located on both sides of the bottom of the trolley chassis frame. A tilting arm is movably hinged at each of the four corners of the bottom of the trolley chassis frame. A roller is installed at the lower outer end of the tilting arm, and the roller is rotatably connected to the corresponding tracked wheel. A motor is provided at one end of the inner side of each tracked wheel to drive the tracked wheel to rotate. The motor is fixedly installed on the corresponding tilting arm. A pushing mechanism is provided at the bottom of the trolley chassis frame to adjust the tilting angle of the tilting arm.

[0008] As a preferred technical solution of this application, the jacking mechanism includes a suspension column and two hydraulic cylinders. The suspension column is fixedly installed at the center of the bottom of the trolley chassis frame, and the two hydraulic cylinders are respectively movably hinged to both sides of the suspension column. The hydraulic cylinders are used to push the tilting arm at the corresponding side position.

[0009] As a preferred technical solution of this application, a tie beam is fixedly installed between two tilting arms on both sides of the bottom of the trolley chassis frame, and the piston shaft of the hydraulic cylinder is movably hinged to the corresponding tie beam.

[0010] As a preferred technical solution of this application, baffles are fixedly installed at both ends of the upper part of the trolley chassis frame.

[0011] As a preferred technical solution of this application, a battery pack is fixedly installed at both ends of the bottom of the trolley chassis frame.

[0012] As a preferred technical solution of this application, the upper end of the tilting arm is provided with an opening, and a suspension frame is installed in the opening by means of a pin hinge. The suspension frame is fixedly installed at the bottom of the trolley chassis frame by bolts.

[0013] As a preferred technical solution of this application, the outer contact surface of the track wheel is made of rubber.

[0014] This utility model features two tracked wheels at the bottom of the trolley chassis frame. The tilt angle of the two tracked wheels can be adjusted by a jacking mechanism. The two tracked wheels can be tilted and attached to both sides of the inner wall of the arc pipe. This structure allows the two tracked wheels to adapt to arc pipes of different diameters, ensuring the stability of the movement process and reducing damage to the pipe. The motor can drive the tracked wheels to rotate, enabling the trolley to move inside the arc pipe. When the transport is completed and the trolley needs to be removed, the two track wheels can be leveled by the jacking mechanism so that the track wheels can move smoothly on the ground without affecting the use of the trolley outside the pipeline. Attached Figure Description

[0015] Figure 1 A schematic diagram of a transport trolley inside an arc-shaped pipe; Figure 2 This is a side view of a transport trolley inside an arc-shaped pipe; Figure 3 This is a structural diagram of a jacking mechanism for a transport trolley inside an arc-shaped pipe.

[0016] In the picture: 1. Trolley chassis frame; 11. Suspension frame; 12. Baffle; 13. Support plate; 2. Track wheel; 3. Battery pack; 4. Tilting arm; 41. Roller shaft; 42. Tie beam; 5. Suspension column; 6. Motor; 7. Hydraulic cylinder. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model provides a transport trolley for an arc-shaped pipe, including a steel trolley chassis frame 1 and two tracked wheels 2. The two tracked wheels 2 are located on both sides of the bottom of the trolley chassis frame 1. A tilting arm 4 is movably hinged to each of the four corners of the bottom of the trolley chassis frame 1. A roller shaft 41 is installed at the lower outer end of the tilting arm 4. Both the roller shaft 41 and the tilting arm 4 are made of high-strength alloy material. The roller shaft 41 is rotatably connected to the corresponding tracked wheel 2. A motor 6 is provided at one end of the inner side of the tracked wheel 2. The motor 6 is used to drive the tracked wheel 2 to rotate. The motor 6 is fixedly installed on the corresponding tilting arm 4. The motor 6 driving the tracked wheel 2 is existing technology. Specifically, the two tracked wheels 2 are driven by two separate motors. The motor 6 provides the initial power, and its output shaft is connected to a reducer. The reducer is fixedly connected to the drive wheel of the tracked wheel through a transmission shaft, thereby driving the tracked wheel 2 to rotate. A pushing mechanism is provided at the bottom of the trolley chassis frame 1. The pushing mechanism is used to adjust the tilting angle of the tilting arm 4.

[0019] like Figure 3 As shown, in this embodiment, the jacking mechanism includes a suspension column 5 and two hydraulic cylinders 7. The suspension column 5 is fixedly installed at the center of the bottom of the trolley chassis frame 1. The two hydraulic cylinders 7 are respectively movably hinged to both sides of the suspension column 5. The hydraulic cylinders 7 are used to push the tilting arm 4 at the corresponding side position. The extension and retraction of the hydraulic cylinders 7 can be controlled by a remote control switch.

[0020] In this embodiment, a tie beam 42 is fixedly installed between two tilting arms 4 on both sides of the bottom of the trolley chassis frame 1, and the piston shaft of the hydraulic cylinder 7 is movably hinged to the corresponding tie beam 42.

[0021] In this embodiment, baffles 12 are fixedly installed at both ends of the upper part of the trolley chassis frame 1, and the space formed between the two baffles 12 can be used to place construction materials or tools.

[0022] In this embodiment, a battery pack 3 is fixedly installed at both ends of the bottom of the trolley chassis frame 1. The battery pack 3 is a lithium battery used to provide power to the motor 6 and the hydraulic cylinder 7.

[0023] In this embodiment, the upper end of the tilting arm 4 is provided with an opening, and a suspension frame 11 is installed in the opening by means of a pin hinge. The suspension frame 11 is fixedly installed at the bottom of the trolley chassis frame 1 by bolts.

[0024] In this embodiment, the outer contact surface of the track wheel 2 is made of rubber, which increases the friction with the pipeline and reduces the damage to the pipeline when the track wheel 2 moves.

[0025] The specific operating steps are as follows: The two baffles 12 on the upper part of the trolley chassis frame 1 can be used to place construction tools or materials. According to the diameter of the arc pipe, the tilt angle of the two track wheels 2 is adjusted by the jacking mechanism so that the two track wheels 2 can be tilted and attached to both sides of the inner wall of the arc pipe. Then the motor 6 can drive the track wheels 2 to rotate, so that the trolley can move inside the arc pipe. When the transport is finished and the vehicle needs to be removed, the two track wheels 2 can be leveled by the jacking mechanism so that the track wheels 2 can move smoothly on the ground.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circular arc pipeline transportation trolley, comprising a trolley chassis frame, characterized in that: It also includes two tracked wheels, which are located on both sides of the bottom of the trolley chassis frame. Each of the four corners of the bottom of the trolley chassis frame is movably hinged to a tilting arm. A roller is installed at the lower outer end of the tilting arm, and the roller is rotatably connected to the corresponding tracked wheel. A motor is provided at one end of the inner side of each tracked wheel, and the motor is used to drive the tracked wheel to rotate. The motor is fixedly installed on the corresponding tilting arm. A jacking mechanism is provided at the bottom of the trolley chassis frame, and the jacking mechanism is used to adjust the tilting angle of the tilting arm.

2. A circular arc in-pipe transportation trolley according to claim 1, characterized in that: The jacking mechanism includes a suspension column and two hydraulic cylinders. The suspension column is fixedly installed at the center of the bottom of the trolley chassis frame, and the two hydraulic cylinders are respectively movably hinged to both sides of the suspension column. The hydraulic cylinders are used to push the tilting arm at the corresponding side position.

3. The circular arc in-pipe transportation trolley according to claim 1, characterized in that: A tie beam is fixedly installed between the two tilting arms on both sides of the bottom of the trolley chassis frame, and the piston shaft of the hydraulic cylinder is movably hinged to the corresponding tie beam.

4. The circular arc in-pipe transportation trolley according to claim 1, characterized in that: Both ends of the upper part of the trolley chassis frame are fixedly installed with baffles.

5. The circular arc in-pipe transport trolley according to claim 1, characterized in that: The trolley chassis frame has battery packs fixedly installed at both ends of its bottom.

6. The transport trolley inside an arc-shaped pipe according to claim 1, characterized in that: The upper end of the tilting arm is provided with an opening, and a suspension frame is installed in the opening by means of a pin hinge. The suspension frame is fixedly installed at the bottom of the trolley chassis frame by bolts.

7. The transport trolley inside an arc-shaped pipe according to claim 1, characterized in that: The outer contact surface of the track wheel is made of rubber.

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