A large-diameter pipeline transportation device in a tunnel

Abstract

The present invention belongs to the field of tunnel pipeline transportation, and specifically relates to a large-diameter pipeline transportation device in a tunnel, including a lifting platform vehicle. Above the lifting platform vehicle, there is a driving platform. Above the driving platform, there is a separation seat. Above the separation seat, there is a support platform. Through this setting, when the large-diameter pipeline is transported over a long distance in the tunnel, there is a fixed lifting platform at regular intervals, ensuring the stability of the pipeline transportation. Compared with using multiple transport vehicles, not only is the cost lower, only two lifting platform vehicles need to be used for movement, and after the support platform is fixed, it does not need to be moved again, reducing the operation and synchronization difficulties. Moreover, each support platform has a certain driving force, which, in cooperation with the pulling force at the head of the pipeline, ensures that the pipeline is evenly stressed and transported at a constant speed. At the same time, after the driving platform is fixed to the tunnel wall, the lifting platform vehicle will be transferred without occupying the tunnel space.

Description

Technical Field

[0001] The present invention belongs to the field of tunnel pipeline transportation, and specifically relates to a large-diameter pipeline transportation device in a tunnel. Background Art

[0002] A tunnel is an engineering structure buried in the stratum. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mine tunnels, and military tunnels. There are various excavation methods for tunnels, such as shield machine excavation, manual excavation, blasting method, etc. Shield machines are only suitable for tunneling in soft soil layers or soft rocks.

[0003] There are many places in tunnels where pipelines are needed. For example, during the excavation of a tunnel, ventilation pipelines or cable pipelines need to be continuously transported inward for internal ventilation and power supply. When the tunnel excavation deepens, the pipelines also need to be moved further into the tunnel.

[0004] For the traditional transportation of large-volume pipelines in tunnels, generally multiple large transport vehicles are required. The leading vehicle is used to fix the end of the pipeline, and then multiple transport vehicles support the middle part of the pipeline. This transportation method not only requires coordinating the operation of multiple transport vehicles simultaneously, resulting in a greater operation difficulty, but also the multiple large transport vehicles not only have a high usage cost but also occupy a large amount of space inside the tunnel, which is not conducive to the tunnel excavation process.

[0005] Therefore, the present invention provides a large-diameter pipeline transportation device in a tunnel. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A large-diameter pipeline transportation device in a tunnel according to the present invention includes a lifting platform vehicle. Above the lifting platform vehicle, there is a driving platform. Above the driving platform, there is a separation seat. Above the separation seat, there is a support platform. One end of the support platform is equipped with a plurality of negative pressure suction cups one and fixing plates for fixing to the tunnel inner wall. A plurality of through holes penetrating to the bottom are provided on the top surface of the support platform. On the top of the separation seat, a plurality of power seats for transferring the pipeline are installed.

[0008] Through the settings of the driving separation seat and the supporting platform, first use a lifting platform truck to place and fix the end of the pipeline on the top of the supporting platform. Then, the lifting platform truck transports the end of the pipeline towards the inside of the tunnel. After transporting a certain distance, enable another identical device and use the supporting platform to lift the middle part of the pipeline to prevent excessive bending. When the pipeline transportation stops, fix the supporting platform in the middle part to the inner wall of the tunnel. The fixing method can use a negative pressure suction cup to adsorb the tunnel wall or use a fixing plate and bolts for fixing. At this time, separate the separation seat and the deflection platform under the fixed supporting platform. At the same time, the lifting platform truck drives the entire driving platform and the deflection platform back to the tunnel entrance, while the supporting platform remains in place to support the pipeline; when the pipeline needs to continue to be transported inward, the lifting platform truck at the head drives the supporting platform and the pipeline end forward, and the supporting platform fixed on the tunnel wall activates the power seat below. The power seat can move the pipeline on the supporting platform forward in a frictional dragging manner. The lifting platform truck standby at the tunnel entrance carries a new supporting platform above the deflection platform again, moves to between the head vehicle and the fixed supporting platform, and lifts the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches the predetermined length, fix this supporting platform to the tunnel wall again; through this setting, when a large-diameter pipeline is transported over a long distance in the tunnel, there is a fixed lifting platform every certain distance, ensuring the stability of the pipeline transportation. Compared with using multiple transport vehicles, not only is the cost lower, only two lifting platform trucks need to be used for movement, and the supporting platform does not need to be moved after being fixed, reducing the operation and synchronization difficulty. Moreover, each supporting platform has a certain driving force, cooperating with the pulling force at the head of the pipeline, ensuring the uniform stress and uniform speed of the pipeline transportation process. At the same time, after the driving platform is fixed to the tunnel wall, the lifting platform truck will be transferred and will not occupy the tunnel space; the fixing method of the supporting platform has temporary fixing and permanent fixing. For example, for cable pipelines and other types where the pipeline remains in place after the tunnel is completed and additional supports need to be built to fix the pipeline in the tunnel, directly use bolts and a fixing plate to fix the supporting platform to the tunnel wall. In this way, after the tunnel is completed, only the supporting platform needs to be reinforced, and all electrical structures such as the separation seat and the deflection platform under the supporting platform can be disassembled, leaving only the metal frame supporting platform, greatly reducing the subsequent project of fixing the pipeline. For example, for ventilation pipelines and other pipelines that are only needed during the tunnel construction process, use a negative pressure suction cup to temporarily fix the supporting platform to the tunnel wall. When the pipeline is no longer used, directly disassemble and take away the pipeline and the supporting platform.

[0009] Preferably, the top surface of the support table is arc-shaped. A metal roller is rotatably connected to the top of the drive table. A deflection table is fixedly connected to the top of the metal roller. The top of the deflection table is connected to the separation seat. A reduction motor for regulating the rotation of the deflection table is fixedly connected to the front end of the drive table. The arc-shaped top surface of the support table can more stably support a pipe with an arc-shaped surface. When starting to support the pipe, the support table is rotated through the reduction motor so that the lowest position of the arc surface of the support table is in the middle. In this way, the pipe supported above will be maintained in the middle of the support table under the action of gravity. When it is necessary to fix the support table to the tunnel wall, the deflection table and the support table are driven to rotate through the reduction motor, and the end of the support table equipped with the first negative pressure suction cup is rotated to the horizontal state so that the first negative pressure suction cup fits the tunnel wall. At this time, the pipe will partially fit the tunnel wall under the action of gravity, allowing the tunnel wall to share part of the gravity of the pipe. At the same time, the support table is fixed to the tunnel wall. Through this setting, the transportation and fixation of the pipe are made more stable and reasonable, improving the safety of transportation and fixation.

[0010] Preferably, multiple second negative pressure suction cups are provided at the other end of the support table. A connecting pipe is connected between the second negative pressure suction cups and the support table. The connecting pipe is a metal flexible conduit. Multiple docking valves for transmitting negative pressure to the first negative pressure suction cup and the second negative pressure suction cup are installed on the outside of the support table. To ensure the stability of the pipe above the support table, the connecting pipe can be stretched by the second negative pressure suction cup so that the connecting pipe binds the pipe above the pipe and the second negative pressure suction cup is adsorbed on the tunnel wall to reduce the pipe from detaching to the outside of the support table during movement or shaking. For the equipment at the head of the pipe, the second negative pressure suction cup can be directly docked with the first negative pressure suction cup, and at the same time, ensure that the first negative pressure suction cup is straightened so that the equipment at the head can strongly pull and drag the pipe. The outer surface of the connecting pipe of the metal flexible conduit is made of metal, with anti-deformation ability and high tensile strength, which can effectively bind the end of the pipe. For the equipment in the middle, it is necessary to ensure that the connecting pipe only simply binds the pipe and does not overly press the pipe, so as not to affect the transportation process of the pipe.

[0011] Preferably, the separation seat is composed of multiple arc-shaped series arms. The multiple series arms are arranged in parallel at equal intervals. The multiple series arms are fixedly connected by brackets. The power seat is fixedly connected to the top of the series arms. The power seat is located below the through hole. The arc-shaped separation seat is used to adapt to the arc-shaped support table. The power of the power seat drives the pipe above to move through the through hole.

[0012] Preferably, a driving roller is installed on the top surface of the power seat, a toggle block is fixedly connected to the outer side of the driving roller, a driving motor is fixedly connected to the middle part of the power seat, and the output end of the driving motor is connected to one end of the driving roller by a belt drive, and the driving motor drives the driving roller to rotate. As the driving roller rotates, the toggle block will contact the bottom of the pipe through the through hole. As multiple toggle blocks rotate in the same direction, friction for forward movement of the pipe can be provided from the bottom of the pipe, and the pulling force at the end of the pipe can effectively transport the pipe forward. The belt transmission method of the driving motor can effectively reduce the problem of damage caused by excessive pressure of the pipeline on a certain driving roller, which makes the driving roller and the driving motor unable to rotate, resulting in driving failure and overheating of the driving motor.

[0013] Preferably, two parallel double-outlet hydraulic cylinders are fixedly connected to the middle part of the deflection table, and docking tubes compatible with the double-outlet hydraulic cylinders are installed at the front and rear ends of the support table. The double-outlet hydraulic cylinders are pushed out to both ends and docked with the docking tubes to fix the deflection table and the support table. When the support table is fixed to the inner wall of the tunnel, the double-outlet hydraulic cylinders are shortened to release the fixation to the support table. The deflection table and the separation seat are connected by snap-fitting, and then the lifting platform vehicle sinks, so that the separation seat and the support table can be left alone on the tunnel wall. It should be noted that to remove the separation seat, it is necessary to first fix the deflection table under the separation seat, then release the fixation of the separation seat and the support table, and finally transfer the separation seat and the deflection table together.

[0014] Preferably, the front end of the negative pressure suction cup 2 is fixedly connected with a connecting flange, a plurality of recovery boxes are installed on the outside of the support platform, a winding roller is installed in the recovery box, the connecting pipe is connected to the winding roller, the negative pressure suction cup 2 can also be permanently fixed to the tunnel wall by the connecting flange and bolts, the winding roller in the recovery box is connected to the connecting pipe, the winding roller can be wound around the recovery connecting pipe, and the external negative pressure is transmitted to the connecting pipe through the winding roller.

[0015] Preferably, a plurality of steel cables are fixedly connected to both ends of the bottom of the deflection table, a pulling roller is fixedly connected to the output end of the reduction motor, and the steel cable is wound around the pulling roller. In order to facilitate the rotation process of the deflection table, the reduction motor is used to control the pulling roller to rotate. The steel cable is wound around the pulling roller for one circle, and a protrusion that matches the surface shape of the steel cable is fixedly connected to the outer side of the pulling roller to ensure that the pulling roller can powerfully drive the steel cable when rotating. As the steel cable is pulled, one side of the support table can be tilted, and the other end is bound by the steel cable to ensure the stable rotation process of the support table. During the transportation of the pipeline, the bottom surface of the deflection table contacts the top surface of the driving table, and the metal roller forms a two-point support to ensure the stability of transportation.

[0016] Preferably, the top surface corners of the driving platform are smoothly transitioned. The width of the driving platform is smaller than that of the deflection platform. When the support platform is in a horizontal state, the height of the end close to the second negative pressure suction cup is higher than that of the end close to the first negative pressure suction cup. The smooth transition of the top surface of the driving platform can increase the contact area during the contact between the deflection platform and the driving platform, and at the same time reduce the damage to the deflection platform caused by sharp parts.

[0017] Preferably, a convex block is fixedly connected to the bottom of the driving platform, and a fixing groove adapted to the convex block is opened at the top of the lifting platform truck. The driving platform can also be separated from the lifting platform truck, so that the entire device can be disassembled. When the lifting platform truck is not used for pipeline transportation, it can also carry out other work normally.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For the large-diameter pipeline transportation device in a tunnel described in the present invention, through the settings of the driving separation seat and the support platform, when the large-diameter pipeline is transported over a long distance in the tunnel, there is a fixed lifting platform at intervals, ensuring the stability of pipeline transportation. Compared with using multiple transport vehicles, not only the cost is lower, only two lifting platform trucks need to be used for movement, and the support platform does not need to be moved after being fixed, reducing the operation and synchronization difficulty. Moreover, each support platform has a certain driving force, cooperating with the pulling force at the head of the pipeline, ensuring that the pipeline is evenly stressed and transported at a constant speed. At the same time, after the driving platform is fixed to the tunnel wall, the lifting platform truck will move, without occupying the tunnel space; the fixing method of the support platform has temporary fixing and permanent fixing.

[0020] 2. For the large-diameter pipeline transportation device in a tunnel described in the present invention, the arc-shaped top surface of the support platform can more stably support the pipeline with an arc-shaped surface. When starting to support the pipeline, the support platform is rotated by a reduction motor, so that the lowest position of the arc surface of the support platform is in the middle. In this way, the pipeline supported above will be maintained in the middle of the support platform under the action of gravity. When it is necessary to fix the support platform to the tunnel wall, the deflection platform and the support platform are rotated by a reduction motor, and the end of the support platform equipped with the first negative pressure suction cup is rotated to a horizontal state, so that the first negative pressure suction cup fits the tunnel wall. At this time, the pipeline will partially fit the tunnel wall under the action of gravity, allowing the tunnel wall to share part of the gravity of the pipeline. At the same time, the support platform is fixed to the tunnel wall. Through this setting, the transportation and fixation of the pipeline are more stable and reasonable, improving the safety of transportation and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a three-dimensional view of the present invention;

[0023] Figure 2 is a three-dimensional diagram of the support platform of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the driving platform, the deflection platform, the separation seat and the support platform of the present invention;

[0025] Figure 4 is a stereogram of a deflection table of the present invention;

[0026] Figure 5 It is a three-dimensional diagram of the support platform and the negative pressure suction cup 1 of the present invention;

[0027] Figure 6 is a three-dimensional diagram of the power seat of the present invention;

[0028] In the figure: 1. Lifting platform vehicle; 2. Support platform; 3. Drive platform; 4. Reducer motor; 5. Deflection platform; 6. Double-outlet hydraulic cylinder; 7. Docking valve; 8. Fixed plate; 9. Negative pressure suction cup 1; 10. Separation seat; 11. Docking pipe; 12. Negative pressure suction cup 2; 13. Through hole; 14. Power seat; 15. Steel cable; 16. Metal roller; 17. Recovery box; 18. Connecting pipe; 19. Tandem arm; 20. Drive roller; 21. Toggle block. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figures 1 to 6 As shown, a large-diameter pipeline transportation device in a tunnel according to an embodiment of the present invention comprises a lifting platform vehicle 1, a driving platform 3 is arranged above the lifting platform vehicle 1, a separation seat 10 is arranged above the driving platform 3, a support platform 2 is arranged above the separation seat 10, a plurality of negative pressure suction cups 9 and a fixing plate 8 for fixing to the inner wall of the tunnel are installed at one end of the support platform 2, a plurality of through holes 13 penetrating to the bottom are opened on the top surface of the support platform 2, and a plurality of power seats 14 for transferring pipelines are installed on the top of the separation seat 10;

[0031] Through the settings of the driving separation base 10 and the support platform 2, first use a lifting platform vehicle 1 to place and fix the end of the pipeline on the top of the support platform 2. Then, the lifting platform vehicle 1 transports the end of the pipeline towards the interior of the tunnel. After transporting a certain distance, activate another identical device and use the support platform 2 to lift the middle part of the pipeline to prevent excessive bending. When the pipeline transportation stops, fix the support platform 2 in the middle part to the inner wall of the tunnel. The fixing method can use the negative pressure suction cup 1 to adsorb the tunnel wall or fix it with the fixing plate 8 and bolts. At this time, separate the separation base 10 and the deflection platform 5 below the fixed support platform 2. At the same time, the lifting platform vehicle 1 drives the entire driving platform 3 and the deflection platform 5 back to the tunnel entrance, while the support platform 2 remains in place to support the pipeline; when the pipeline needs to continue transporting inward, the lifting platform vehicle 1 at the head drives the support platform 2 and the pipeline end forward, and the support platform 2 fixed on the tunnel wall activates the power seat 14 below. The power seat 14 can move the pipeline on the support platform 2 forward by means of frictional dragging. The lifting platform vehicle 1 waiting at the tunnel entrance again carries a new support platform 2 above the deflection platform 5 and moves between the head vehicle and the fixed support platform 2 to lift the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches the predetermined length, fix this support platform 2 to the tunnel wall again; through this setting, when transporting a large-diameter pipeline over a long distance in the tunnel, there is a fixed lifting platform at intervals, ensuring the stability of the pipeline transportation. Compared with using multiple transport vehicles, not only the cost is lower, only two lifting platform vehicles 1 need to be used for movement, and the support platform 2 does not need to be moved after being fixed, reducing the operation and synchronization difficulty. Moreover, each support platform 2 has a certain driving force, cooperating with the pulling force at the head of the pipeline, ensuring the uniform force and uniform speed of the pipeline during transportation. At the same time, after the driving platform 3 is fixed to the tunnel wall, the lifting platform vehicle 1 will be transferred and will not occupy the tunnel space; the fixing method of the support platform 2 has temporary fixing and permanent fixing. For example, for cable pipelines, etc., after the tunnel is completed and the pipeline remains in place, additional supports still need to be built to fix the pipeline in the tunnel. In this case, directly use bolts and the fixing plate 8 to fix the support platform 2 to the tunnel wall. In this way, after the tunnel is completed, only the support platform 2 needs to be reinforced. All electrical structures below the support platform 2, such as the separation base 10 and the deflection platform 5, can be disassembled, leaving only the metal frame support platform 2, greatly reducing the subsequent project of fixing the pipeline. For example, for ventilation pipelines, etc., which are only pipelines needed during the tunnel construction process, use the negative pressure suction cup 1 to temporarily fix the support platform 2 to the tunnel wall. When the pipeline is no longer used, directly disassemble and take away the pipeline and the support platform 2. The negative pressure suction cup 1 can be disassembled. When the transported pipeline is heavy, multiple negative pressure suction cups 1 can be installed to ensure the smooth support of the pipeline.

[0032] The top surface of the support table 2 is arc-shaped. A metal roller 16 is rotatably connected to the top of the driving table 3. A deflection table 5 is fixedly connected to the top of the metal roller 16. The top of the deflection table 5 is connected to the separation seat 10. A reduction motor 4 for regulating the rotation of the deflection table 5 is fixedly connected to the front end of the driving table 3;

[0033] During operation, the arc-shaped top surface of the support table 2 can more stably support a pipe with an arc-shaped surface. When starting to support the pipe, the support table 2 is controlled to rotate by the reduction motor 4, so that the lowest position of the arc surface of the support table 2 is in the middle. In this way, the pipe supported above will be maintained in the middle of the support table 2 under the action of gravity. When it is necessary to fix the support table 2 to the tunnel wall, the deflection table 5 and the support table 2 are driven to rotate by the reduction motor 4, and the end of the support table 2 equipped with the first negative pressure suction cup 9 is rotated to the horizontal state, so that the first negative pressure suction cup 9 fits the tunnel wall. At this time, the pipe will partially fit the tunnel wall under the action of gravity, allowing the tunnel wall to share part of the gravity of the pipe. At the same time, the support table 2 is fixed to the tunnel wall. Through this setting, the transportation and fixation of the pipe are more stable and reasonable, improving the safety of transportation and fixation.

[0034] The other end of the support table 2 is provided with a plurality of second negative pressure suction cups 12. A connecting pipe 18 is connected between the second negative pressure suction cups 12 and the support table 2. The connecting pipe 18 is a metal flexible conduit. A plurality of docking valves 7 for transmitting negative pressure to the first negative pressure suction cup 9 and the second negative pressure suction cups 12 are installed on the outside of the support table 2;

[0035] During operation, in order to ensure the stability of the pipe above the support table 2, the connecting pipe 18 can be stretched by the second negative pressure suction cups 12, so that the connecting pipe 18 binds the pipe above the pipe and the second negative pressure suction cups 12 are used to adsorb on the tunnel wall, reducing the pipe from breaking away from the outside of the support table 2 during movement or shaking. For the equipment at the head of the pipe, the second negative pressure suction cups 12 can be directly docked with the first negative pressure suction cup 9, and at the same time, ensure that the first negative pressure suction cup 9 is straightened, so that the equipment at the head can strongly pull and drag the pipe. The outer surface of the connecting pipe 18 of the metal flexible conduit is made of metal, with anti-deformation ability and high tensile strength, which can effectively bind the end of the pipe. For the equipment in the middle, it is necessary to ensure that the connecting pipe 18 only simply binds the pipe and does not overly press the pipe, so as not to affect the transportation process of the pipe.

[0036] The separation seat 10 is composed of a plurality of arc-shaped series arms 19. The plurality of series arms 19 are arranged in parallel at equal intervals. The plurality of series arms 19 are fixedly connected by brackets. The power seat 14 is fixedly connected to the top of the series arms 19. The power seat 14 is located below the through hole 13;

[0037] During operation, the arc-shaped separation seat 10 is used to adapt to the arc-shaped support platform 2 , and the power of the power seat 14 drives the upper pipe to move through the through hole 13 , and the series arm 19 is used to fix the power seat 14 .

[0038] A driving roller 20 is installed on the top surface of the power seat 14, a toggle block 21 is fixedly connected to the outer side of the driving roller 20, a driving motor is fixedly connected to the middle of the power seat 14, and the output end of the driving motor is connected to one end of the driving roller 20 through a belt drive;

[0039] During operation, the driving motor drives the driving roller 20 to rotate. As the driving roller 20 rotates, the toggle block 21 will contact the bottom of the pipe through the through hole 13. As multiple toggle blocks 21 rotate in the same direction, the bottom of the pipe can provide friction for the pipe to move forward. Combined with the pulling force at the end of the pipe, the pipe can be effectively transported forward. The belt transmission method of the driving motor can effectively reduce the problem of damage caused by excessive pressure of the pipe on a certain driving roller 20, which makes the driving roller 20 and the driving motor unable to rotate, resulting in driving failure and overheating of the driving motor.

[0040] The middle part of the deflection platform 5 is fixedly connected with two parallel double-outlet hydraulic cylinders 6, and the front and rear ends of the support platform 2 are both installed with butt-joint pipes 11 adapted to the double-outlet hydraulic cylinders 6;

[0041] During operation, the double-outlet hydraulic cylinder 6 is pushed out to both ends and docked with the docking pipe 11 to fix the deflection table 5 and the support table 2. When the support table 2 is fixed to the inner wall of the tunnel, the double-outlet hydraulic cylinder 6 is shortened to release the fixation to the support table 2. The deflection table 5 and the separation seat 10 are connected by snapping. After that, the lifting platform vehicle 1 sinks, so that the separation seat 10 and the support table 2 can be left alone on the tunnel wall. It should be noted that to remove the separation seat 10, it is necessary to first fix the deflection table 5 under the separation seat 10, then release the fixation of the separation seat 10 and the support table 2, and finally transfer the separation seat 10 and the deflection table 5 together.

[0042] The front end of the negative pressure suction cup 2 12 is fixedly connected with a connecting flange, and a plurality of recovery boxes 17 are installed on the outer side of the support platform 2. A winding roller is installed in the recovery box 17, and the connecting pipe 18 is connected to the winding roller;

[0043] During operation, the negative pressure suction cup 2 12 can also be permanently fixed on the tunnel wall through the connecting flange and bolts. The winding roller in the recovery box 17 is connected to the connecting pipe 18. The winding roller can wind and recover the connecting pipe 18, and the external negative pressure is transmitted to the connecting pipe 18 through the winding roller.

[0044] A plurality of steel cables 15 are fixedly connected to the bottom of the deflection platform 5 at both ends, and a pulling roller is fixedly connected to the output end of the reduction motor 4, and the steel cables 15 are wound around the pulling roller;

[0045] During operation, to facilitate the rotation process of the deflection table 5, a reduction motor 4 is used to control the rotation of the pulling roller. The steel cable 15 is wound around the pulling roller for one circle, and a convex block adapted to the surface shape of the steel cable 15 is fixedly connected to the outer side of the pulling roller. This ensures that when the pulling roller rotates, it can effectively drive the steel cable 15. As the steel cable 15 is pulled, one side of the support table 2 can be tilted, while the other end is restricted by the steel cable 15, ensuring a stable rotation process of the support table 2. During the transportation of the pipeline, the bottom surface of the deflection table 5 contacts the top surface of the driving table 3, and together with the metal roller 16, it forms two-point support to ensure the stability of transportation.

[0046] The top surface corners of the driving table 3 are set with smooth transitions. The width of the driving table 3 is smaller than the width of the deflection table 5. When the support table 2 is in a horizontal state, the height of the end close to the negative pressure suction cup two 12 is higher than the height of the end close to the negative pressure suction cup one 9.

[0047] During operation, the smooth transition of the top surface of the driving table 3 can increase the contact area during the contact between the deflection table 5 and the driving table 3, and at the same time reduce the damage to the deflection table 5 caused by sharp parts.

[0048] Convex blocks are fixedly connected to the bottom of the driving table 3, and fixing grooves adapted to the convex blocks are provided at the top of the lifting platform truck 1.

[0049] During operation, the driving table 3 can also be separated from the lifting platform truck 1, enabling the entire device to be disassembled. When the lifting platform truck 1 is not used for pipeline transportation, it can also carry out other normal operations.

[0050] During operation, through the settings of the driving separation base 10 and the support platform 2, first use a lifting platform vehicle 1 to place and fix the end of the pipeline on the top of the support platform 2. Then, the lifting platform vehicle 1 transports the end of the pipeline towards the interior of the tunnel. After transporting a certain distance, activate another identical device and use the support platform 2 to lift the middle part of the pipeline to prevent excessive bending. When the pipeline transportation stops, fix the support platform 2 in the middle part to the inner wall of the tunnel. The fixing method can be to use the negative pressure suction cup 1 to adsorb the tunnel wall or use the fixing plate 8 and bolts for fixing. At this time, separate the separation base 10 and the deflection platform 5 below the fixed support platform 2. At the same time, the lifting platform vehicle 1 drives the entire driving platform 3 and the deflection platform 5 back to the tunnel entrance, while the support platform 2 remains in place to support the pipeline. When the pipeline needs to continue to be transported further inward, the lifting platform vehicle 1 at the head drives the support platform 2 and the pipeline end forward. The support platform 2 fixed to the tunnel wall activates the power seat 14 below. The power seat 14 can move the pipeline on the support platform 2 forward by means of frictional dragging. The lifting platform vehicle 1 standby at the tunnel entrance again carries a new support platform 2 above the deflection platform 5 and moves to between the head vehicle and the fixed support platform 2 and supports the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches the predetermined length, fix this support platform 2 to the tunnel wall again. Through this setting, when a large-diameter pipeline is transported over a long distance in the tunnel, there is a fixed lifting platform at intervals, ensuring the stability of the pipeline transportation. Compared with using multiple transport vehicles, not only is the cost lower, only two lifting platform vehicles 1 need to be used for movement, and after the support platform 2 is fixed, it does not need to be moved again, reducing the operation and synchronization difficulties. Moreover, each support platform 2 has a certain driving force, cooperating with the pulling force at the head of the pipeline, ensuring the uniform stress and uniform speed of the pipeline transportation process. At the same time, after the driving platform 3 is fixed to the tunnel wall, the lifting platform vehicle 1 will be transferred and will not occupy the tunnel space. The fixing method of the support platform 2 has temporary fixing and permanent fixing. For example, for cable pipelines, etc., after the tunnel is completed, the pipeline remains in place and additional supports need to be built to fix the pipeline in the tunnel. In this case, directly use bolts and the fixing plate 8 to fix the support platform 2 to the tunnel wall. In this way, after the tunnel is completed, only the support platform 2 needs to be reinforced. All the electrical structures below the support platform 2, such as the separation base 10 and the deflection platform 5, can be disassembled, leaving only the metal frame support platform 2, greatly reducing the subsequent project of fixing the pipeline. For example, for ventilation pipelines, etc., which are only pipelines needed during the tunnel construction process, use the negative pressure suction cup 1 to temporarily fix the support platform 2 to the tunnel wall. When the pipeline is no longer used, directly disassemble and remove the pipeline and the support platform 2 together.

[0051] The arc shape of the top surface of the support platform 2 can more stably support a pipe with an arc-shaped surface. When the pipe starts to be supported, the support platform 2 is controlled to rotate by the reduction motor 4 so that the lowest position of the arc surface of the support platform 2 is in the middle, so that the pipe supported above will be maintained in the middle of the support platform 2 under the action of gravity. When it is necessary to fix the support platform 2 to the tunnel wall, the deflection platform 5 and the support platform 2 are driven to rotate by the reduction motor 4, and the end of the support platform 2 equipped with the negative pressure suction cup 9 is rotated to a horizontal state, so that the negative pressure suction cup 9 fits the tunnel wall. At this time, the pipe will partially fit the tunnel wall under the action of gravity, so that the tunnel wall shares part of the gravity of the pipe, and at the same time, the support platform 2 is fixed to the tunnel wall. Through this arrangement, the transportation and fixation of the pipeline are more stable and reasonable, and the safety of transportation and fixation is improved.

[0052] In order to ensure the stability of the pipeline above the support platform 2, the connecting pipe 18 can be stretched by the negative pressure suction cup 2 12, so that the connecting pipe 18 can be bound above the pipeline, and the negative pressure suction cup 2 12 can be used to absorb on the tunnel wall to reduce the pipeline from being separated from the outside of the support platform 2 during movement or shaking. The equipment located at the head of the pipeline can directly connect the negative pressure suction cup 2 12 with the negative pressure suction cup 1 9, and at the same time ensure that the negative pressure suction cup 1 9 is straightened, so that the equipment at the head can effectively pull and drag the pipeline. The outer surface of the connecting pipe 18 of the metal flexible conduit is made of metal material, which has deformation resistance and high tensile strength, and can effectively bind the end of the pipeline. For the equipment located in the middle, it is necessary to ensure that the connecting pipe 18 is only a simple binding of the pipeline, and the pipeline cannot be excessively compressed, so as not to affect the transportation process of the pipeline;

[0053] The arc-shaped separation seat 10 is used to adapt to the arc-shaped support platform 2, and the power of the power seat 14 drives the upper pipe to move through the through hole 13;

[0054] The driving motor drives the driving roller 20 to rotate. As the driving roller 20 rotates, the toggle block 21 contacts the bottom of the pipe through the through hole 13. As the multiple toggle blocks 21 rotate in the same direction, the bottom of the pipe can provide friction for the pipe to move forward. With the pulling force at the end of the pipe, the pipe can be effectively transported forward. The belt transmission method of the driving motor can effectively reduce the problem that the driving roller 20 and the driving motor cannot rotate due to excessive pressure from the pipe, resulting in overheating of the driving motor and damage.

[0055] It is pushed out towards both ends by the double-acting hydraulic cylinder 6 and docked with the docking pipe 11 to fix the deflection table 5 and the support table 2. After the support table 2 is fixed to the inner wall of the tunnel, the double-acting hydraulic cylinder 6 is shortened to release the fixation with the support table 2. The deflection table 5 and the separation seat 10 are connected by a clamping method. Then, when the lifting platform truck 1 sinks, the separation seat 10 and the support table 2 can be left on the tunnel wall alone. It should be noted that when removing the separation seat 10, the deflection table 5 needs to be fixed below the separation seat 10 first, then the fixation between the separation seat 10 and the support table 2 is released, and finally the separation seat 10 and the deflection table 5 are transferred together.

[0056] The second negative pressure suction cup 12 can also be permanently fixed to the tunnel wall through a connecting flange and bolts. The winding roller in the recycling box 17 is communicated with the connecting pipe 18. The winding roller can wind and recycle the connecting pipe 18, and the external negative pressure is transmitted to the connecting pipe 18 through the winding roller.

[0057] To facilitate the rotation process of the deflection table 5, a reduction motor 4 is used to control the rotation of the pulling roller. The steel cable 15 is wound around the pulling roller for one circle, and a convex block adapted to the surface shape of the steel cable 15 is fixedly connected to the outside of the pulling roller to ensure that when the pulling roller rotates, it can strongly drive the steel cable 15. As the steel cable 15 is pulled, one side of the support table 2 can be tilted, and the other end is constrained by the steel cable 15 to ensure the stable rotation process of the support table 2. During the transportation of the pipeline, the bottom surface of the deflection table 5 contacts the top surface of the driving table 3, and together with the metal roller 16, it forms two-point support to ensure the stability of transportation.

[0058] The smooth transition of the top surface of the driving table 3 can increase the contact area when the deflection table 5 contacts the driving table 3, and at the same time reduce the damage to the deflection table 5 caused by sharp parts.

[0059] The driving table 3 can also be separated from the lifting platform truck 1, so that the entire device can be disassembled. When the lifting platform truck 1 is not transporting the pipeline, it can also perform other normal work.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A large diameter pipeline transportation device in a tunnel, characterized by: It comprises a lifting platform vehicle, a driving platform is arranged above the lifting platform vehicle, a separation seat is arranged above the driving platform, a support platform is arranged above the separation seat, a plurality of negative pressure suction cups and a fixing plate for fixing to the inner wall of the tunnel are installed at one end of the support platform, a plurality of through holes penetrating to the bottom are opened on the top surface of the support platform, and a plurality of power seats for transferring pipelines are installed on the top of the separation seat; The separation seat is composed of a plurality of arc-shaped series arms, which are arranged in parallel and at equal distances, and the plurality of series arms are fixedly connected by brackets, and the power seat is fixedly connected to the top of the series arms, and the power seat is located below the through hole; A driving roller is installed on the top surface of the power seat, a toggle block is fixedly connected to the outer side of the driving roller, a driving motor is fixedly connected to the middle of the power seat, and the output end of the driving motor is connected to one end of the driving roller through a belt drive; The top surface of the support platform is arranged in an arc shape, the top of the driving platform is rotatably connected to a metal roller, the top of the metal roller is fixedly connected to a deflection platform, the top of the deflection platform is connected to a separation seat, and the front end of the driving platform is fixedly connected to a reduction motor for regulating the rotation of the deflection platform; The middle part of the deflection platform is fixedly connected with two parallel double-outlet hydraulic cylinders, and the front and rear ends of the support platform are both equipped with butt-joint pipes adapted to the double-outlet hydraulic cylinders; The double-outlet hydraulic cylinder is used to push out to both ends and dock with the butt pipe to fix the deflection table and the support table. When the support table is fixed to the inner wall of the tunnel, the double-outlet hydraulic cylinder is shortened to release the fixation with the support table. When the pipeline transportation stops, the support platform in the middle part is fixed to the inner wall of the tunnel. At this time, the separation seat and deflection table under the fixed support platform are separated, and the lifting platform car drives the entire driving platform and deflection table back to the tunnel entrance, while the support platform remains in place to support the pipeline; when the pipeline needs to continue to be transported inward, the lifting platform car at the head drives the support platform and the end of the pipeline forward, and the support platform fixed on the tunnel wall starts the power seat below to move the pipeline on the support platform forward, and the lifting platform car on standby at the tunnel entrance carries a new support platform again above the deflection table, and moves it between the head car and the fixed support platform, and lifts the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches the predetermined length, the support platform is fixed to the tunnel wall again.

2. The large-diameter pipeline transportation device in a tunnel according to claim 1, characterized in that: A plurality of negative pressure suction cups 2 are arranged at the other end of the support platform, a connecting pipe is connected between the negative pressure suction cup 2 and the support platform, the connecting pipe is a metal flexible conduit, and a plurality of docking valves for transmitting negative pressure to the negative pressure suction cups 1 and 2 are installed on the outside of the support platform.

3. The large-diameter pipeline transportation device in a tunnel according to claim 2, characterized in that: The front end of the negative pressure suction cup 2 is fixedly connected with a connecting flange, a plurality of recovery boxes are installed on the outer side of the support platform, a winding roller is installed in the recovery box, and the connecting pipe is connected with the winding roller.

4. The large-diameter pipeline transportation device in a tunnel according to claim 3, characterized in that: A plurality of steel cables are fixedly connected to the bottom of the deflection platform at both ends, a pulling roller is fixedly connected to the output end of the reduction motor, and the steel cables are wound around the pulling roller.

5. The large-diameter pipeline transportation device in a tunnel according to claim 4, characterized in that: The top surface corner of the driving platform is arranged in a smooth transition, the width of the driving platform is smaller than the width of the deflection platform, and when the support platform is in a horizontal state, the height near one end of the negative pressure suction cup two is higher than the height near the negative pressure suction cup one.

6. The large-diameter pipeline transportation device in a tunnel according to claim 5, characterized in that: A convex block is fixedly connected to the bottom of the driving platform, and a fixing groove adapted to the convex block is formed on the top of the lifting platform vehicle.

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