Tunnel pipe transporting vehicle

Abstract

The invention relates to the technical field of tunnel construction mechanical equipment, and discloses a tunnel pipe transport vehicle which comprises a double-end transport vehicle, and pipelines are transported in a tunnel through the double-end transport vehicle. The platform bottom plate is fixed on the double-end transport vehicle and is used for bearing an upper structure; the supporting mechanism can rotate on the platform bottom plate to change the position; the telescopic mechanism is arranged on the supporting mechanism and used for bearing the pipeline; the dismounting mechanism is used for mounting the fixing mechanism; the fixing mechanism is detachably mounted on the dismounting mechanism and used for fixing the pipeline from the outer side; and the driving assembly is used for driving the fixing mechanism to rotate. By arranging the supporting mechanism capable of rotating on the platform bottom plate and the telescopic mechanism, the horizontal position and height of a supported pipeline can be conveniently adjusted by the pipeline conveying vehicle; and in combination with stable driving provided by the hydraulic cylinder, the transportation requirements of pipelines with different diameters and different mounting positions in a tunnel can be flexibly met, and the universality and the field adaptability of the vehicle are improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction machinery and equipment technology, specifically a tunnel pipe transport vehicle. Background Technology

[0002] In modern tunnel engineering construction, such as highway tunnels, railway tunnels, integrated utility tunnels, and water diversion tunnels, the internal transportation and laying of a large number of prefabricated pipes (such as concrete pipes, steel pipes, and composite material pipes) is a crucial and labor-intensive process. In order to safely and efficiently transport these large and heavy pipes from the tunnel entrance or designated storage point to the laying location, specially designed tunnel pipe transport vehicles are usually required.

[0003] Currently, there are some vehicles on the market used for transporting pipelines in tunnels. These vehicles have basic load-bearing and driving functions and can move pipelines from storage locations to construction sites. However, traditional vehicles usually travel in one direction and have difficulty turning around in narrow tunnels, resulting in low efficiency. Therefore, pipeline transport vehicles are designed with bidirectional driving capabilities. However, there are still shortcomings in tunnel pipeline transport vehicles that can drive in both directions.

[0004] While some existing tunnel pipe transport vehicles have bidirectional driving capabilities, their pipe support structures are fixed. This requires placing the pipe support frame directly on top of the vehicle's platform or bolting it to the vehicle before placing the pipe on the frame. This method lacks flexibility, as the height and position of the support frame cannot be adjusted, and additional straps are needed to secure the pipe. Furthermore, when dealing with pipes of different diameters or shapes, the support frame needs to be replaced, impacting transport efficiency and limiting versatility. The fixed support frame also occupies significant space on the vehicle, hindering the transport of other items. Additionally, the support frame needs to be folded up when not in use, further increasing space requirements. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a tunnel pipe transport vehicle that solves the problem of poor flexibility in fixing pipeline support structures.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tunnel pipe transport vehicle, comprising a double-headed transport vehicle, which transports pipes within a tunnel; The platform base plate is fixed on the double-headed transport vehicle and supports the upper structure; The support mechanism is able to rotate and change position on the platform base plate; A telescopic mechanism, disposed on the support mechanism, is used to support the tunnel from below; Disassembly mechanism, used for installing and fixing mechanisms; A fixing mechanism, detachably mounted on a disassembly mechanism, is used to clamp and secure the pipe from the outside; A drive assembly for driving the fixing mechanism to rotate to engage with or disengage from the pipe.

[0007] Preferably, the support mechanism includes a hydraulic cylinder and at least two rotating rods. The hydraulic cylinder is fixed to the platform base plate by a rotating mechanism. A second support block is rotatably connected to the bottom of the rotating rod. The second support block is fixedly and rotatably connected to the platform base plate. A first support block is rotatably connected to the output end of the hydraulic cylinder. The side of the first support block away from the hydraulic cylinder is fixedly connected to the bottom of the rotating rod. The outer side of the rotating rod is connected to the telescopic mechanism.

[0008] Preferably, the telescopic mechanism includes a sleeve rod, which is rotatably connected to the outside of one of the rotating rods. A telescopic rod is slidably connected to the inside of the sleeve rod, and the telescopic rod is rotatably connected to the outside of another of the rotating rods. A pad is fixedly connected to the top of the sleeve rod, and the pad has an arc-shaped groove for adapting to the pipe profile.

[0009] Preferably, the drive assembly includes a servo motor, which is fixedly connected to the outside of the rotating rod. An electromagnetic brake is mounted on the servo motor. A fixed rod is fixedly connected to the output end of the servo motor. The fixed rod is rotatably connected to the outside of the rotating rod. A housing is fixedly connected to the outside of the rotating rod, and the drive assembly is located inside the housing.

[0010] Preferably, the disassembly mechanism includes an electric push rod, which is fixedly connected inside the fixed rod. The fixed rod has an installation groove inside, and two round rods are slidably connected inside the fixed rod. The output end of the electric push rod is rotatably connected to two connecting strips, and the two round rods are rotatably connected to the ends of the two connecting strips away from the electric push rod.

[0011] Preferably, the fixing mechanism includes a mounting sleeve, which is fitted onto the top of the fixing rod. A support rod is fixedly connected to the top of the mounting sleeve, and an arc-shaped block is fixedly connected between the support rod and the mounting sleeve. The arc-shaped block has friction strips for protecting the pipe.

[0012] Preferably, the mounting sleeve is provided with at least one fixing groove, and the round rod is inserted into the fixing groove to lock the fixing mechanism in the working position.

[0013] Preferably, the rotating mechanism includes a fixed sleeve, a support shaft, and a groove. The groove is formed inside the platform base plate. The fixed sleeve is fixedly connected to the outside of the hydraulic cylinder. The support shaft is fixedly connected to the outside of the fixed sleeve. The fixed sleeve is rotatably connected to the groove through the support shaft, so that the hydraulic cylinder can adapt to the angle change of the rotating rod during the driving process.

[0014] Preferably, the inner sidewall of the mounting groove is fixedly connected to two limiting blocks and sleeves, the two connecting strips are located between the two limiting blocks, and the two round rods are slidably connected in the two sleeves respectively.

[0015] Preferably, the top of the platform base plate has a storage groove, and the support mechanism is located in the storage groove.

[0016] Working principle: After the double-headed transport vehicle is parked in the designated position, the hydraulic cylinder is driven first. The output end of the hydraulic cylinder cooperates with the first support block to drive the rotating rod to rotate on the platform base plate under the support of the second support rod. The angle of the two rotating rods is changed. The two rotating rods rotate upward to drive the telescopic mechanism to move. The telescopic rod moves in and out of the sleeve rod. After the telescopic mechanism is moved upward to the appropriate position, the hydraulic cylinder stops to fix the position of the telescopic mechanism. The pad above the sleeve rod is located in the middle between the two rotating rods. The pipe to be transported can then be placed in the arc-shaped groove in the middle of the pad. Then, the servo motor inside the upper shell of the rotating rod is driven to rotate the fixing mechanism, unfold the fixing rod, and fix it with the electromagnetic brake at the output end of the servo motor. Then, the fixing mechanism is installed through the disassembly mechanism. First, the electric push rod inside the mounting slot is driven. By retracting the output end of the electric push rod, the two rotatable connecting strips and limit blocks on the output end drive the round rod to move towards the center of the mounting slot on the sleeve. The round rod is retracted inward. Then, the fixing mechanism is taken out, and the mounting sleeve in the fixing mechanism is placed on the top of the fixing rod. Then, the output end of the electric push rod extends out and pushes the round rod to slide inside the sleeve through the connecting strip, so that the round rod extends out of the outside of the fixing rod and is inserted into the fixing slot inside the mounting sleeve, thus installing the fixing mechanism in place. Once the fixing mechanism is in place, the hoisting mechanism places the pipe onto the pad on the telescopic mechanism. The arc groove on the pad is used to position the pipe. The servo motor is then driven again to rotate the fixing rod on the rotating rod. The arc block, which is fixed to the mounting sleeve by the support rod, is then placed against the pipe, fixing the pipe to the support mechanism and the telescopic mechanism. The friction strip on the arc block contacts the pipe, increasing friction while protecting the pipe.

[0017] When the output end of the hydraulic cylinder extends, the hydraulic cylinder rotates in the groove under the support of the fixed sleeve and the support shaft, and the angle is adjusted to adapt to the position of the rotating rod. After the pipeline is fixed, it can be transported into the tunnel. Then, the pipeline is unloaded by the hoisting mechanism. After the pipeline is unloaded, the support mechanism can be retracted into the storage slot. First, the fixing mechanism is disassembled by the disassembly mechanism. The output end of the electric push rod is retracted, which drives the connecting strip to move. The limit block pushes the connecting strip to move inward, and the round rod is retracted from the outside of the fixing rod. After the round rod is separated from the fixing slot in the fixed sleeve, the fixing mechanism can be removed and placed in the vehicle. Then, the hydraulic cylinder is retracted, which drives the rotating rod to rotate downward, folding up the support mechanism, telescopic mechanism, drive components, etc. After folding, it corresponds exactly to the size of the storage slot, making the upper part of the platform base plate flat. When needed, a double-headed transport vehicle can be used to transport other items, with the other end of the vehicle driving out of the tunnel.

[0018] This invention provides a tunnel lining transport vehicle. It has the following beneficial effects: 1. This invention, by setting a support mechanism that can rotate on the platform base plate and a telescopic mechanism thereon, allows the pipeline transport vehicle to easily adjust the horizontal position and height of the pipeline it carries; combined with the stable drive provided by the hydraulic cylinder, it can flexibly adapt to the transportation needs of pipelines with different diameters and different installation positions in the tunnel, thereby improving the vehicle's versatility and on-site adaptability.

[0019] 2. The present invention uses the lower telescopic mechanism and the upper fixing mechanism to work together to form a double fixation of the pipeline, ensuring stability during transportation; wherein, the arc-shaped block and friction strip on the fixing mechanism increases the contact area with the pipeline and provides cushioning, effectively preventing scratches or pressure damage to the pipeline surface, and realizing safe and damage-free transportation.

[0020] 3. By setting up a disassembly mechanism and a drive component, this invention realizes the automatic installation, disassembly, and rotational clamping of the fixing mechanism; the operator can remotely control it through the electric push rod and servo motor, which replaces the traditional heavy manual installation and fastening operations, greatly simplifies the operation process, shortens the preparation and finishing time of a single transport, and significantly improves the overall construction efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the storage slot of the present invention; Figure 3 This is a schematic diagram of the support mechanism of the present invention; Figure 4 This is a schematic diagram of the driving component of the present invention; Figure 5 This is a cross-sectional schematic diagram of the disassembly mechanism of the present invention; Figure 6 This is a schematic diagram of the telescopic mechanism of the present invention; Figure 7 This is a cross-sectional schematic diagram of the fixing mechanism of the present invention; Figure 8 This is a cross-sectional schematic diagram of the rotating mechanism of the present invention.

[0022] The components include: 1. Dual-head transport vehicle; 2. Platform base plate; 3. Storage slot; 4. Support mechanism; 401. Hydraulic cylinder; 402. First support block; 403. Second support block; 404. Rotating rod; 5. Drive assembly; 501. Housing; 502. Servo motor; 503. Electromagnetic brake; 504. Fixing rod; 6. Disassembly mechanism; 601. Mounting slot; 602. Electric push rod; 603. Limiting block; 604. Connecting strip; 605. Round rod; 606. Sleeve; 7. Telescopic mechanism; 701. Sleeve rod; 702. Telescopic rod; 703. Pad; 704. Arc groove; 8. Fixing mechanism; 801. Mounting sleeve; 802. Fixing slot; 803. Support rod; 804. Arc block; 805. Friction strip; 9. Rotating mechanism; 901. Groove; 902. Support shaft; 903. Fixing sleeve. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example: Please see the appendix Figure 1 - Appendix Figure 8 This invention provides a tunnel pipeline transport vehicle, which innovates and improves upon existing technologies to enhance the efficiency of pipeline transportation, support, and fixation during tunnel pipeline construction and maintenance. This embodiment will describe the structure and operation of the tunnel pipeline transport vehicle in detail to ensure that this invention can be understood and implemented by other skilled personnel.

[0025] The dual-head transport vehicle 1, used to transport pipes within the tunnel, serves as the foundation of the tunnel pipe transport vehicle. Its unique design allows for flexible maneuverability within the confined space of the tunnel. The dual-head design enables bidirectional transport, maximizing handling efficiency. Furthermore, the dual-head transport vehicle 1 is equipped with wear-resistant tires, allowing it to navigate freely in complex tunnel environments, exhibiting excellent wear resistance and traction. The platform base plate 2, fixed to the double-headed transport vehicle 1, supports the superstructure and provides a fixed support foundation for the entire tunnel pipe transport vehicle. The design of the platform base plate 2 ensures the stability and safety of the structure. High-strength alloy aluminum or steel is selected to ensure that it will not deform under heavy loads. At the same time, the base plate is equipped with a storage groove 3 to accommodate the upper support mechanism 4, reducing the space required for the support mechanism 4 and facilitating construction. The support mechanism 4 can rotate on the platform base plate 2 and change its position. The rotation and position adjustment functions of the support mechanism 4 enable the tunnel pipe transport vehicle to adapt to the transportation and fixing needs of different pipelines. The telescopic mechanism 7 is installed on the support mechanism 4 and is used to support the pipeline from below. The telescopic mechanism 7 is a key part of the support mechanism 4 that enables the pipeline to be effectively supported, so as to realize the corresponding support of the pipeline from the top and bottom, prevent the pipeline from shaking during transportation and ensure the stability of transportation work. The disassembly mechanism 6 is used to install the fixing mechanism 8. The function of the disassembly mechanism 6 is to quickly and efficiently replace and adjust the fixing mechanism 8. It is easy to operate and can effectively improve work efficiency and reduce manual labor intensity. The fixing mechanism 8 is detachably mounted on the disassembly mechanism 6 and is used to press and fix the pipe from the outside. The fixing mechanism 8, through its detachable design, ensures that the pipe remains safe and stable during transportation and avoids accidental slippage that may occur during operation. The drive assembly 5 is used to drive the fixing mechanism 8 to rotate to engage with or disengage from the pipeline. The drive assembly 5 can achieve precise control of the fixing mechanism 8 to ensure that the fixing mechanism 8 can fix the pipeline and protect the safety of the operators.

[0026] Please see the appendix Figure 2 and attached Figure 3The support mechanism 4 includes a hydraulic cylinder 401 and at least two rotating rods 404. The hydraulic cylinder 401 is fixed to the platform base plate 2 by a rotating mechanism 9. The hydraulic cylinder 401 is made of high-pressure resistant material to ensure that it will not fail under heavy load. A second support block is rotatably connected to the bottom of the rotating rod, and the second support block is fixedly and rotatably connected to the platform base plate. The rotating rods 404 are designed to be easy to rotate and wear-resistant, ensuring the long-term use of the entire device. A first support block 402 is rotatably connected to the output end of the hydraulic cylinder 401. The first support block 402 is located on the side away from the hydraulic cylinder 401. Fixedly connected to the bottom of the rotating rod 404, the output end of the hydraulic cylinder 401 is connected to the rotating rod 404 via the first support block 402, allowing the hydraulic cylinder 401 to rotate when supporting the rotating rod 404. The outer side of the rotating rod 404 is connected to the telescopic mechanism 7. The support mechanism 4 is the combination of the hydraulic cylinder 401 and the rotating rod 404. Through the connection between the first support block 402 and the rotating rod 404, the power of the hydraulic cylinder 401 can be effectively transmitted to the support position of the pipeline. The design of the support mechanism 4 not only improves the stability of the pipeline transport vehicle, but also greatly enhances the flexibility of operation.

[0027] Please see the appendix Figure 3 and attached Figure 6 The telescopic mechanism 7 includes a sleeve rod 701, which is rotatably connected to the outside of a rotating rod 404. A telescopic rod 702 is slidably connected to the inside of the sleeve rod 701. A low-friction material is used between the telescopic rod 702 and the sleeve rod 701 to ensure smooth operation during repeated extension and retraction, and to reduce energy consumption. The telescopic rod 702 is rotatably connected to the outside of another rotating rod 404 and is driven by the rotating rod 404. A pad 703 is fixedly connected to the top of the sleeve rod 701. The pad 703 has an arc-shaped groove 704 for adapting to the pipe profile. The arc-shaped groove 704 on the pad 703 ensures that it can adapt to various standard pipes, achieving a seamless fit. The design of the arc-shaped groove 704 not only improves the support for the pipe but also enhances the safety factor of the overall structure, preventing accidental slippage of the pipe during transportation.

[0028] Please see the appendix Figure 4The drive assembly 5 includes a servo motor 502, which is fixedly connected to the outside of the rotating rod 404. An electromagnetic brake 503 is installed on the servo motor 502, which makes the servo motor 502 more stable when it stops rotating. A fixing rod 504 is fixedly connected to the output end of the servo motor 502. The fixing rod 504 is rotatably connected to the outside of the rotating rod 404 and is driven by the servo motor 502 to rotate on the outside of the rotating rod 404. The pipe is fixed by the upper fixing mechanism 8. A housing 501 is fixedly connected to the outside of the rotating rod 404. The drive assembly 5 is located inside the housing 501. The servo motor 502 of the drive assembly 5 is equipped with a high-precision encoder to ensure that the fixing or releasing of the pipe can be achieved quickly and accurately when adjusting the position of the fixing mechanism 8. The electromagnetic brake 503 can respond sensitively when fixing is required, allowing the drive assembly 5 to firmly fix the transported pipe to the transport vehicle with the fixing mechanism 8, thereby improving safety.

[0029] Please see the appendix Figure 5 The disassembly mechanism 6 includes an electric push rod 602, which is fixedly connected inside the fixed rod 504. The electric push rod 602 is installed in the mounting groove 601 in the middle of the fixed rod 504 and is the main power source of the disassembly mechanism 6. The mounting groove 601 is provided inside the fixed rod 504, allowing the disassembly mechanism 6 to be stored inside the fixed rod 504, saving space. Two round rods 605 are slidably connected inside the fixed rod 504, and the two round rods 605 are on the side wall of the fixed rod 504. The electric push rod 602 is movable and can extend or retract to fix the mounting sleeve 801. The output end of the electric push rod 602 is rotatably connected to two connecting bars 604. The two connecting bars 604 are connected by a rotating shaft, allowing the connecting bars 604 to rotate at the output end of the electric push rod 602. Two round rods 605 are rotatably connected to the ends of the two connecting bars 604 away from the electric push rod 602. The connecting bars 604 connect the round rods 605 to the electric push rod 602. When the electric push rod 602 moves, it will drive the round rods 605 to extend and retract on the fixed rod 504. Two limiting blocks 603 and sleeves 606 are fixedly connected to the inner side wall of the mounting groove 601. Two connecting strips 604 are located between the two limiting blocks 603. When the electric push rod 602 retracts, the connecting strips 604 are pressed inward by the limiting blocks 603 on both sides, allowing the round rod 605 to retract from the outside of the fixed rod 504. This allows the round rod 605 to detach from the fixed groove 802 inside the mounting sleeve 801, and the mounting sleeve 801 to be removed from the fixed rod 504. The two round rods 605 are slidably connected in the two sleeves 606 respectively. The sleeves 606 provide a path for the movement of the round rods 605, making the movement of the round rods 605 smoother.

[0030] Please see the appendix Figure 5 and attached Figure 7The fixing mechanism 8 includes an installation sleeve 801, which is fitted onto the top of the fixing rod 504. The installation sleeve 801 is fixed to the fixing rod 504 via a disassembly mechanism 6 for easy assembly and disassembly. A support rod 803 is fixedly connected to the top of the installation sleeve 801. An arc-shaped block 804 is fixedly connected between the support rod 803 and the installation sleeve 801. The arc-shaped block 804 is fixed to the installation sleeve 801 by the support rod 803, facilitating pipe fixing using the support rod 803. The arc-shaped block 804 has friction strips 805 for protecting the pipe. The design of the combination of the support rod 803 and the friction strips 805 in the fixing mechanism 8 is to ensure that vibrations generated during pipe transportation will not affect the pipe's fixation. The friction strips 805 are made of high-strength rubber or polyurethane to improve their pipe protection effect and maintain stable performance during long-term contact and friction. The mounting sleeve 801 is provided with at least one fixing groove 802. The round rod 605 is inserted into the fixing groove 802 to lock the fixing mechanism 8 in the working position. The electric push rod 602 drives the two round rods 605 to move and extend the round rods 605 out of the fixing mounting sleeve 801, which can improve the convenience of installation and reduce the labor intensity of workers.

[0031] Please see the appendix Figure 3 and attached Figure 8 The rotating mechanism 9 includes a fixed sleeve 903, a support shaft 902, and a groove 901. The groove 901 is formed inside the platform base plate 2, opening up the platform base plate 2 so that the hydraulic cylinder 401 can be positioned in the middle of the platform base plate 2. The fixed sleeve 903 is fixedly connected to the outside of the hydraulic cylinder 401, and the support shaft 902 is fixedly connected to the outside of the fixed sleeve 903. The fixed sleeve 903 is rotatably connected to the groove 901 through the support shaft 902. The hydraulic cylinder 401 is fixed by the fixed sleeve 903 and then installed in the groove 901 through the two outer support shafts 902. When the hydraulic cylinder 401 extends to push the rotating rod 404 to rotate, the hydraulic cylinder 401 rotates in the middle of the platform base plate 2 through the fixed sleeve 903 and the support shaft 902, changing its position so that the hydraulic cylinder 401 can adapt to the angle change of the rotating rod 404 during the driving process.

[0032] Please see the appendix Figure 1 and attached Figure 2 The top of the platform base plate 2 is provided with a storage groove 3, and the support mechanism 4 is located in the storage groove 3. The shape of the storage groove 3 corresponds to the structure of the support mechanism 4, the telescopic mechanism 7, the drive component 5, etc. After the pipeline is transported, the upper structure is retracted and folded, and can be completely stored in the storage groove 3, reducing the space occupied. At the same time, the platform base plate 2 becomes a flat surface, which facilitates the transportation of other items, expands the use of the pipeline transport vehicle, and improves the practicality of the pipeline transport vehicle. When transporting other items, the goods are fixed by straps through the hooks on both sides of the bottom of the platform base plate 2 to stabilize the goods and improve safety.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel pipe transport vehicle, characterized in that, Includes a double-headed transport vehicle (1), through which the pipeline is transported within the tunnel; The platform base plate (2) is fixed on the double-headed transport vehicle (1) and supports the upper structure; The support mechanism (4) can rotate on the platform base plate (2) and change its position; Telescopic mechanism (7), provided on the support mechanism (4), is used to support the tunnel from below; Disassembly mechanism (6) is used to install fixing mechanism (8); The fixing mechanism (8) is detachably mounted on the disassembly mechanism (6) for pressing and fixing the pipe from the outside; The drive assembly (5) is used to drive the fixing mechanism (8) to rotate to engage with or disengage from the pipe.

2. The tunnel pipeline transport vehicle according to claim 1, characterized in that, The support mechanism (4) includes a hydraulic cylinder (401) and at least two rotating rods (404). The hydraulic cylinder (401) is fixed to the platform base plate (2) by a rotating mechanism (9). A second support block (403) is rotatably connected to the bottom of the rotating rod (404). The second support block (403) is fixedly and rotatably connected to the platform base plate (2). A first support block (402) is rotatably connected to the output end of the hydraulic cylinder (401). The side of the first support block (402) away from the hydraulic cylinder (401) is fixedly connected to the bottom of the rotating rod (404). The outside of the rotating rod (404) is connected to the telescopic mechanism (7).

3. A tunnel pipeline transport vehicle according to claim 2, characterized in that, The telescopic mechanism (7) includes a sleeve rod (701), which is rotatably connected to the outside of a rotating rod (404). A telescopic rod (702) is slidably connected inside the sleeve rod (701). The telescopic rod (702) is rotatably connected to the outside of another rotating rod (404). A pad (703) is fixedly connected to the top of the sleeve rod (701). An arc groove (704) for adapting to the pipe profile is provided on the pad (703).

4. A tunnel pipeline transport vehicle according to claim 2, characterized in that, The drive assembly (5) includes a servo motor (502), which is fixedly connected to the outside of the rotating rod (404). An electromagnetic brake (503) is installed on the servo motor (502). A fixed rod (504) is fixedly connected to the output end of the servo motor (502). The fixed rod (504) is rotatably connected to the outside of the rotating rod (404). A housing (501) is fixedly connected to the outside of the rotating rod (404). The drive assembly (5) is located inside the housing (501).

5. A tunnel pipeline transport vehicle according to claim 4, characterized in that, The disassembly mechanism (6) includes an electric push rod (602), which is fixedly connected inside the fixed rod (504). The fixed rod (504) has an installation groove (601) inside. Two round rods (605) are slidably connected inside the fixed rod (504). Two connecting strips (604) are rotatably connected to the output end of the electric push rod (602). The two round rods (605) are rotatably connected to the ends of the two connecting strips (604) away from the electric push rod (602).

6. A tunnel pipeline transport vehicle according to claim 5, characterized in that, The fixing mechanism (8) includes an installation sleeve (801), which is fitted on the top of the fixing rod (504). A support rod (803) is fixedly connected to the top of the installation sleeve (801). An arc-shaped block (804) is fixedly connected between the support rod (803) and the installation sleeve (801). A friction strip (805) for protecting the pipe is provided on the arc-shaped block (804).

7. A tunnel pipeline transport vehicle according to claim 6, characterized in that, The mounting sleeve (801) is provided with at least one fixing groove (802), and the round rod (605) is inserted into the fixing groove (802) to lock the fixing mechanism (8) in the working position.

8. A tunnel pipeline transport vehicle according to claim 2, characterized in that, The rotating mechanism (9) includes a fixed sleeve (903), a support shaft (902), and a groove (901). The groove (901) is formed inside the platform base plate (2). The fixed sleeve (903) is fixedly connected to the outside of the hydraulic cylinder (401). The support shaft (902) is fixedly connected to the outside of the fixed sleeve (903). The fixed sleeve (903) is rotatably connected to the groove (901) through the support shaft (902) so that the hydraulic cylinder (401) can adapt to the angle change of the rotating rod (404) during the driving process.

9. A tunnel pipeline transport vehicle according to claim 5, characterized in that, The inner sidewall of the mounting groove (601) is fixedly connected to two limiting blocks (603) and sleeves (606), the two connecting strips (604) are located between the two limiting blocks (603), and the two round rods (605) are slidably connected in the two sleeves (606).

10. A tunnel pipeline transport vehicle according to claim 1, characterized in that, The platform base plate (2) has a storage groove (3) on its top, and the support mechanism (4) is located in the storage groove (3).

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