Pipeline pushing device crossing pipe culvert

Abstract

The utility model relates to pipeline pushing technical field especially, more particularly to a pipeline pushing device of crossing pipe culvert, including mounting bracket and double -shaft motor, the mounting bracket bottom fixed mounting has a plurality of universal drive wheel groups, the universal drive wheel group includes wireless control unit, the mounting bracket fixed mounting has battery group, battery group with universal drive wheel group electric connection, the mounting bracket fixed mounting has a plurality of hydraulic cylinders, the one end fixedly connected with spherical hinge seat of hydraulic cylinder away from the mounting bracket, the output of double -shaft motor both sides is fixedly connected with rotating shaft and threaded rod respectively, the utility model adopts the one end fixedly connected with spherical hinge seat of hydraulic cylinder away from mounting bracket, and both sides of fixed block rotatably connected with guide arm, and when spherical hinge seat self -adaptation adjustment angle when hydraulic cylinder drives push -on plate to push pipeline, makes the thrust always keep in the middle, and guide arm further ensures the centring of thrust, to make the process of pushing more smoothly.

Description

Technical Field

[0001] This utility model relates to the field of pipeline pushing technology, and in particular to a pipeline pushing device for passing through culverts. Background Technology

[0002] Pipeline pushing typically refers to the operation of inserting a new pipeline (such as a cable protection pipe, optical cable pipe, or drainage pipe) into an existing underground culvert (or casing) with a larger diameter in municipal, power, and telecommunications projects.

[0003] According to Chinese Patent Publication No. CN221236676U, a patent document entitled "A Pipe Pushing Device" is disclosed. Existing pushing devices often require external track support, making it difficult to move flexibly and position accurately within existing culverts with limited diameters. This makes it difficult for the pipe to travel and be positioned within the existing culvert. Furthermore, when pushing the pipe, if the line of action of the pushing force does not coincide with the pipe axis, an eccentric bending moment will be generated, causing the front end of the pipe to collide, rub, or even get stuck on the inner wall of the culvert, resulting in damage to the pipe and the inner wall of the culvert and affecting the operation effect. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art where the pushing device is difficult to move and position in the culvert and the pipe is prone to deflection and jamming during the pushing process, and to propose a pipe pushing device for passing through the culvert.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipe pushing device for culverts includes a mounting frame and a dual-axis motor. Multiple omnidirectional drive wheel sets are fixedly mounted on the bottom of the mounting frame. Each omnidirectional drive wheel set includes a wireless control unit. A battery pack is fixedly mounted on the mounting frame and electrically connected to the omnidirectional drive wheel sets. Multiple hydraulic cylinders are fixedly mounted on the mounting frame. A spherical hinge seat is fixedly connected to the end of each hydraulic cylinder away from the mounting frame. A push plate is hinged to the spherical hinge seat. Rotary shafts and threaded rods are fixedly connected to the output ends of the dual-axis motor on both sides. A fixed block is rotatably sleeved on the threaded rod. A moving block is threaded onto the threaded rod. Guide arms are rotatably connected to both sides of the fixed block. The guide arms are rotatably connected to the moving blocks via push-pull rods.

[0007] Preferably, the push plate has circular holes on both sides, and the spherical hinge seat is fixedly connected to the connecting frame through the balance frame, with the balance frame passing through the circular holes.

[0008] Preferably, the fixing block and the connecting frame are fixedly connected, and the threaded rod and the connecting frame are rotatably connected.

[0009] Preferably, the dual-axis motor is fixedly mounted on the connecting frame, and a pulley is rotatably mounted on the end of the guide arm away from the fixed block.

[0010] Preferably, a driving bevel gear is fixedly connected to the end of the rotating shaft away from the dual-axis motor, a bidirectional screw is rotatably mounted on the connecting frame, a driven bevel gear is coaxially fixed to the bidirectional screw, and the driven bevel gear and the driving bevel gear are meshed together.

[0011] Preferably, both ends of the bidirectional screw are threaded with support blocks, and the side of the support block facing the inner wall of the culvert is arc-shaped.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model uses a mounting frame with multiple universal drive wheel sets fixedly installed at the bottom. The universal drive wheel sets include a wireless control unit. The operator controls the universal drive wheel sets with a remote control to make them drive the pushing device to the designated working position inside the culvert. There is no need for personnel to enter or lay external tracks, which makes the equipment deployment fast and flexible and avoids difficulties in movement and positioning.

[0014] 2. This utility model uses a spherical hinge seat fixedly connected to the end of the hydraulic cylinder away from the mounting bracket. Guide arms are rotatably connected to both sides of the fixed block. When the hydraulic cylinder drives the push plate to push the pipe, the spherical hinge seat adaptively adjusts the angle so that the thrust is always centered. The guide arms further ensure the centering of the thrust, thus making the pushing process smoother. Attached Figure Description

[0015] Figure 1 This is a preview of the overall structure of a pipe pushing device for passing through a culvert according to the present invention.

[0016] Figure 2 This is a front view of a pipe pushing device for passing through a culvert according to the present invention.

[0017] Figure 3 This is a schematic diagram of the anchoring structure of a pipe pushing device for culverts proposed in this utility model.

[0018] In the diagram: 1. Mounting bracket; 2. Dual-axis motor; 3. Rotating shaft; 4. Driving bevel gear; 5. Driven bevel gear; 6. Bidirectional screw; 7. Support block; 8. Threaded rod; 9. Fixing block; 10. Moving block; 11. Push-pull rod; 12. Guide arm; 13. Connecting frame; 14. Hydraulic cylinder; 15. Spherical hinge seat; 16. Push plate; 17. Balance frame; 18. Universal drive wheel set; 19. Battery pack. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-3 A pipe pushing device for traversing a culvert includes a mounting frame 1 and a dual-axis motor 2. Multiple omnidirectional drive wheel sets 18 are fixedly mounted on the bottom of the mounting frame 1. Each omnidirectional drive wheel set 18 includes a wireless control unit. A battery pack 19 is fixedly mounted on the mounting frame 1. The battery pack 19 and the omnidirectional drive wheel sets 18 are electrically connected. The operator places the folded pushing device into the culvert entrance and connects to the wireless control unit via a remote control to activate the self-propelled function of the omnidirectional drive wheel sets 18, allowing the pushing device to drive into the culvert like a trolley until it reaches the position where it needs to be pushed.

[0021] It should be noted that the omnidirectional drive wheel set 18 is equipped with omnidirectional wheels or tracks driven by independent motors. The wheels or tracks have good traction and can achieve forward, backward and turning through differential control.

[0022] The output ends of the dual-axis motor 2 are respectively fixedly connected to a rotating shaft 3 and a threaded rod 8. The threaded rod 8 is rotatably sleeved with a fixing block 9. The fixing block 9 is fixedly connected to a connecting frame 13. The threaded rod 8 is rotatably connected to the connecting frame 13. After reaching the designated position, the dual-axis motor 2 is started, and the dual-axis motor 2 drives the rotating shaft 3 and the threaded rod 8 to rotate synchronously.

[0023] A moving block 10 is threaded onto the threaded rod 8. Guide arms 12 are rotatably connected to both sides of the fixed block 9. The guide arms 12 are rotatably connected to the moving block 10 via push-pull rods 11. The dual-axis motor 2 is fixedly mounted on the connecting frame 13. A pulley is rotatably mounted on the end of the guide arm 12 away from the fixed block 9. The rotation of the threaded rod 8 drives the moving block 10 to move toward the side where the fixed block 9 is located. During the movement, the moving block 10 will push the guide arm 12 through the push-pull rods 11. During the pushing process, the pulley on the guide arm 12 contacts the inner wall of the culvert, which plays a role in assisting in straightening and supporting the main body of the device, further ensuring the centering of the thrust. At the same time, the pulley on the guide arm 12 ensures that the pushing process is smooth and efficient, protecting the pipeline and culvert.

[0024] A drive bevel gear 4 is fixedly connected to the end of the rotating shaft 3 away from the dual-axis motor 2. A bidirectional screw 6 is rotatably mounted on the connecting frame 13. A driven bevel gear 5 is coaxially fixed to the bidirectional screw 6. The driven bevel gear 5 and the drive bevel gear 4 are meshed together. Support blocks 7 are threaded on both ends of the bidirectional screw 6. The side of the support block 7 facing the inner wall of the culvert is arc-shaped. The rotation of the rotating shaft 3 causes the drive bevel gear 4 to drive the driven bevel gear 5 to rotate. During the rotation of the driven bevel gear 5, the bidirectional screw 6 rotates synchronously, thereby causing the two support blocks 7 to move in opposite directions until the two support blocks 7 expand to tightly press against the inner wall of the culvert. This can firmly anchor the pushing device in the culvert and provide a reaction force foundation for the jacking.

[0025] Multiple hydraulic cylinders 14 are fixedly installed on the mounting frame 1. A spherical hinge seat 15 is fixedly connected to the end of the hydraulic cylinder 14 away from the mounting frame 1. A push plate 16 is hinged to the spherical hinge seat 15. When the multiple hydraulic cylinders 14 are started, they move synchronously. The push plate 16 is driven by the spherical hinge seat 15 to push the pipe forward smoothly by one section of pipe. After the pipe in a section of the culvert is laid, the pushing device can be released from anchoring and move to the next working area again using the self-propelled function of the universal drive wheel set 18. The above steps are repeated to achieve long-distance, uninterrupted pipe pushing.

[0026] It should be noted that the multiple hydraulic cylinders 14 are arranged in a 120° triangle, and the extension and retraction displacements of the multiple hydraulic cylinders 14 are consistent with the pressure, thereby generating a central thrust.

[0027] Furthermore, the spherical hinge seat 15 can adaptively swing within a small angle range to make it fully fit the end face of the pipe to be pushed. Even if there is a slight non-perpendicularity of the pipe end face, the thrust can be transmitted through the center of the ball and automatically centered, thereby ensuring that the top thrust always passes through the axis of the pipe.

[0028] Both sides of the push plate 16 have circular holes. The spherical hinge seat 15 is fixedly connected to the connecting frame 13 through the balance frame 17. The balance frame 17 passes through the circular holes and is used to connect the various parts of the push device.

[0029] The model of the dual-shaft motor 2 can be a three-phase asynchronous motor YE3-225S-437KW4, which is the current technology, so this application does not describe it in detail.

[0030] It should be noted that the specific model and specifications to be adopted need to be determined based on the actual specifications of the device. The specific selection and calculation methods use existing technology in this field, so they will not be elaborated here.

[0031] The functional principle of this utility model can be explained through the following operation methods:

[0032] The system includes a mounting frame 1 and a dual-axis motor 2. Multiple omnidirectional drive wheel sets 18 are fixedly mounted on the bottom of the mounting frame 1. Each omnidirectional drive wheel set 18 includes a wireless control unit. A battery pack 19 is fixedly mounted on the mounting frame 1 and electrically connected to the omnidirectional drive wheel sets 18. Multiple hydraulic cylinders 14 are fixedly mounted on the mounting frame 1. A spherical hinge seat 15 is fixedly connected to the end of each hydraulic cylinder 14 away from the mounting frame 1. A push plate 16 is hinged to the spherical hinge seat 15. Rotary shafts 3 and threaded rods 8 are fixedly connected to the output ends of the dual-axis motor 2 on both sides. Fixed blocks 9 are rotatably sleeved on the threaded rods 8. Moving blocks 10 are threadedly mounted on the threaded rods 8. Both sides of the fixed blocks 9 are rotatably connected... The device has a guide arm 12, which is rotatably connected to the moving block 10 via a push-pull rod 11. At the culvert entrance, the operator can control the universal drive wheel set 18 via a remote control to drive the device to the designated working position inside the culvert on its own. This eliminates the need for personnel to enter or to lay external tracks, thus avoiding difficulties in movement and positioning. Multiple hydraulic cylinders 14 push the pipe into the culvert with consistent displacement and pressure. The spherical hinge seat 15 can adaptively adjust its angle when in contact with the pipe to keep the thrust centered. The guide arm 12 is adjusted by rotating the threaded rod 8 so that the pulley on the guide arm 12 contacts the inner wall of the culvert, which helps to straighten and support the device body, further ensuring the centering of the thrust.

[0033] 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 pipe pushing device for traversing a culvert, comprising a mounting frame (1) and a dual-axis motor (2), characterized in that, The mounting bracket (1) has multiple universal drive wheel sets (18) fixedly mounted at its bottom end. Each universal drive wheel set (18) includes a wireless control unit. A battery pack (19) is fixedly mounted on the mounting bracket (1). The battery pack (19) and the universal drive wheel set (18) are electrically connected. Multiple hydraulic cylinders (14) are fixedly mounted on the mounting bracket (1). A spherical hinge seat (15) is fixedly connected to one end of each hydraulic cylinder (14) away from the mounting bracket (1). A push plate (16) is hinged to the spherical hinge seat (15). A rotating shaft (3) and a threaded rod (8) are fixedly connected to the output ends on both sides of the dual-axis motor (2). A fixed block (9) is rotatably sleeved on the threaded rod (8). A moving block (10) is threadedly mounted on the threaded rod (8). Guide arms (12) are rotatably connected to both sides of the fixed block (9). The guide arms (12) are rotatably connected to the moving block (10) through a push-pull rod (11).

2. The pipe pushing device for culvert crossing according to claim 1, characterized in that, The push plate (16) has circular holes on both sides. The spherical hinge seat (15) is fixedly connected to the connecting frame (13) through the balance frame (17). The balance frame (17) passes through the circular holes.

3. A pipe pushing device for culvert crossing according to claim 2, characterized in that, The fixing block (9) and the connecting frame (13) are fixedly connected, and the threaded rod (8) and the connecting frame (13) are rotatably connected.

4. A pipe pushing device for culvert crossing according to claim 2, characterized in that, The dual-axis motor (2) is fixedly mounted on the connecting frame (13), and a pulley is rotatably mounted on the end of the guide arm (12) away from the fixed block (9).

5. A pipe pushing device for culvert crossing according to claim 2, characterized in that, The rotating shaft (3) is fixedly connected to a drive bevel gear (4) at one end away from the dual-axis motor (2). A bidirectional screw (6) is rotatably mounted on the connecting frame (13). A driven bevel gear (5) is coaxially fixed to the bidirectional screw (6). The driven bevel gear (5) and the drive bevel gear (4) are meshed together.

6. A pipe pushing device for culvert crossing according to claim 5, characterized in that, Both ends of the bidirectional screw (6) are threaded with support blocks (7), and the side of the support block (7) facing the inner wall of the culvert is arc-shaped.

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