Transportation device for large-diameter pipeline in tunnel

Abstract

The invention belongs to the field of tunnel pipeline transportation, and particularly relates to a large-diameter pipeline transportation device in a tunnel, which comprises a lifting platform truck, a driving table is arranged above the lifting platform truck, a separating seat is arranged above the driving table, and a supporting table is arranged above the separating seat. When large-diameter pipelines are transported in a long distance in a tunnel, fixed lifting platforms exist every certain distance, the stability of pipeline transportation is guaranteed, compared with multiple transport vehicles, the cost is low, only two lifting platform vehicles need to be used for moving, the supporting platforms do not need to be moved after being fixed, and the transportation efficiency is improved. And each supporting table has a certain driving force and is matched with the pulling force of the head of the pipeline, the uniform stress and the constant-speed transportation process of the pipeline are guaranteed, meanwhile, after the driving tables and the tunnel wall are fixed, the lifting platform car can conduct transferring, and the tunnel space cannot be occupied.

Description

Technical Field

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

[0002] A tunnel is an engineering structure buried in the ground. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. There are many ways to excavate tunnels, such as shield machine excavation, manual excavation, and blasting. Shield machines are only suitable for excavation in soft soil or soft rocks.

[0003] There are many places in the tunnel where pipes are needed. For example, during the tunnel excavation process, ventilation ducts or cable ducts need to be continuously transported inward for internal ventilation and power supply. When the tunnel is excavated deeper, the pipes need to be moved into the tunnel.

[0004] Traditional tunnel transportation of large-volume pipelines generally requires the use of multiple large transport vehicles. The lead vehicle is used to fix the end of the pipeline, and then multiple transport vehicles lift the middle of the pipeline. This transportation method not only requires the simultaneous control of multiple transport vehicles for coordinated work, which makes the operation more difficult, but also multiple large transport vehicles are not only expensive to use, but also occupy a larger space inside the tunnel, which is not conducive to the tunnel excavation process.

[0005] To this end, 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, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the large-diameter pipeline transportation device in the tunnel described in the present invention 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; By driving the setting of the separation seat and the support platform, a lifting platform car is first used to place and fix the end of the pipeline on the top of the support platform. Then the lifting platform car transports the end of the pipeline toward the inside of the tunnel. After transporting a certain distance, another identical device is enabled, and the middle part of the pipeline is lifted by the support platform to prevent excessive bending. When the pipeline transportation stops, the support platform in the middle part is fixed to the inner wall of the tunnel. The fixing method can use a negative pressure suction cup to adsorb the tunnel wall or a fixed plate plus bolts to fix it. At this time, the separation seat and deflection table under the fixed support platform are separated, and the lifting platform car drives the entire drive The platform and the deflection platform return 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 vehicle 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, which can move the pipeline on the support platform forward by friction drag, and the lifting platform vehicle waiting at the tunnel entrance will carry a new support platform above the deflection platform again, and move it between the head vehicle and the fixed support platform, and lift 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; through this arrangement , when large-diameter pipelines are transported over long distances in tunnels, there are fixed lifting platforms at every distance, which ensures the stability of pipeline transportation. Compared with the use of multiple transport vehicles, it is not only less costly, but only needs two lifting platform vehicles to move, and the support platform does not need to be moved after it is fixed, which reduces the difficulty of operation and synchronization. Each support platform has a certain driving force, which cooperates with the pulling force of the pipeline head to ensure that the pipeline is evenly stressed and transported at a uniform speed. At the same time, after the driving platform is fixed to the tunnel wall, the lifting platform vehicle will be transferred and will not occupy the tunnel space; the support platform can be fixed temporarily or permanently, such as: Cable pipes, etc., after the completion of the tunnel, the pipes are left in place, and supports need to be built to fix the pipes in the tunnel. The support platform is directly fixed to the tunnel wall with bolts and fixing plates. In this way, when the tunnel is completed, only the support platform needs to be reinforced. All electrical structures under the support platform, such as the separation seat and the deflection table, can be disassembled, leaving only the metal frame support platform, which greatly reduces the subsequent engineering of fixing pipes, such as ventilation ducts, etc., which are only pipes needed during the tunnel construction process. Use a negative pressure suction cup to temporarily fix the support platform to the tunnel wall. When the pipe is no longer in use, directly dismantle the pipe and the support platform and take them away.

[0008] Preferably, 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 arc shape of the top surface of the support platform can more stably support a pipe with an arc-shaped surface. When the pipe starts to be supported, the support platform is controlled to rotate by the reduction motor so that the lowest position of the arc surface of the support platform is in the middle, so that the pipe 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 driven to rotate by the reduction motor, and the end of the support platform equipped with the negative pressure suction cup is rotated to a horizontal state, so that the negative pressure suction cup is in contact with the tunnel wall. At this time, the pipe will be partially in contact with 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 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.

[0009] Preferably, a plurality of negative pressure suction cups 2 are provided at the other end of the support platform, and a connecting pipe is connected between the negative pressure suction cup 2 and the support platform, and the connecting pipe is a metal flexible conduit, and a plurality of docking valves for transmitting negative pressure to the negative pressure suction cup 1 and the negative pressure suction cup 2 are installed on the outside of the support platform. In order to ensure the stability of the pipeline above the support platform, the connecting pipe can be stretched by the negative pressure suction cup 2, so that the connecting pipe can be restrained above the pipeline, and the negative pressure suction cup 2 can be adsorbed on the tunnel wall to reduce the pipeline from detaching from the outside of the support platform during movement or shaking. The equipment located at the head of the pipeline can directly dock the negative pressure suction cup 2 with the negative pressure suction cup 1, and at the same time ensure that the negative pressure suction cup 1 is straightened, so that the equipment at the head can pull and drag the pipeline forcefully. The outer surface of the connecting pipe of the metal flexible conduit is made of metal material, has deformation resistance and high tensile strength, and can effectively restrain the end of the pipeline, while the equipment located in the middle needs to ensure that the connecting pipe only simply restrains the pipeline and cannot excessively compress the pipeline, thereby not affecting the transportation process of the pipeline.

[0010] Preferably, the separation seat is composed of a plurality of arc-shaped series arms, which are arranged in parallel and equidistantly, and are fixedly connected by brackets. The power seat is fixedly connected to the top of the series arms, and the power seat is located below the through hole. The arc-shaped separation seat is used to adapt to the arc-shaped support platform, and the power of the power seat drives the pipe above to move through the through hole.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Preferably, the top surface corner of the driving platform is arranged with 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. The smooth transition of the top surface of the driving platform can increase the contact area of ​​the deflection platform during the contact process with the driving platform, while reducing the damage to the deflection platform caused by sharp parts.

[0016] Preferably, a protrusion is fixed to the bottom of the driving platform, and a fixing groove adapted to the protrusion is opened on the top of the lifting platform vehicle. The driving platform can also be separated from the lifting platform vehicle, so that the entire device can be disassembled, and the lifting platform vehicle can also perform other work normally when not carrying out pipeline transportation.

[0017] The beneficial effects of the present invention are as follows: 1. The large-diameter pipeline transportation device in the tunnel described in the present invention, through the setting of the driving separation seat and the support platform, allows the large-diameter pipeline to be transported over a long distance in the tunnel, and there is a fixed lifting platform at each distance, thereby ensuring the stability of pipeline transportation. Compared with the use of multiple transport vehicles, not only is the cost lower, but only two lifting platform vehicles are needed for movement, and the support platform does not need to be moved after it is fixed, which reduces the difficulty of operation and synchronization, and each support platform has a certain driving force, which cooperates with the pulling force of the pipeline head to ensure that the pipeline is evenly stressed and transported at a uniform speed. At the same time, after the driving platform is fixed to the tunnel wall, the lifting platform vehicle will be transferred and will not occupy the tunnel space; the support platform can be fixed in two ways: temporary fixation and permanent fixation.

[0018] 2. The present invention relates to a large-diameter pipeline transportation device in a tunnel. The arc-shaped top surface of the support platform can more stably support a 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, so that 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 driven to rotate by the reduction motor, and the end of the support platform equipped with a negative pressure suction cup is rotated to a horizontal state so that the negative pressure suction cup fits the tunnel wall. At this time, the pipeline will fit partially with the tunnel wall under the action of gravity, so that the tunnel wall shares part of the gravity of the pipeline and fixes the support platform to the tunnel wall at the same time. Through this arrangement, the transportation and fixation of the pipeline are more stable and reasonable, and the safety of transportation and fixation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is a three-dimensional diagram of the support platform of the present invention; Figure 3 It is a three-dimensional diagram of the driving platform, deflection platform, separation seat and support platform of the present invention; Figure 4 is a stereogram of a deflection table of the present invention; Figure 5 It is a three-dimensional diagram of the support platform and the negative pressure suction cup 1 of the present invention; Figure 6 is a three-dimensional diagram of the power seat of the present invention; 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

[0021] 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.

[0022] 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; By driving the setting of the separation seat 10 and the support platform 2, a lifting platform vehicle 1 is first used to place and fix the end of the pipeline on the top of the support platform 2, and then the lifting platform vehicle 1 transports the end of the pipeline toward the inside of the tunnel. After transporting a certain distance, another identical device is enabled, and the middle part of the pipeline is lifted using the support platform 2 to prevent excessive bending. When the pipeline transportation stops, the support platform 2 in the middle part is fixed to the inner wall of the tunnel. The fixing method can use a negative pressure suction cup 9 to adsorb the tunnel wall or a fixing plate 8 plus bolts for fixing. At this time, the separation seat 10 and the deflection table 5 under the fixed support platform 2 are separated, and at the same time, the lifting platform vehicle 1 drives the entire driving platform 3 and the deflection table 5 back When the pipeline needs to be transported further inward, the lifting platform vehicle 1 at the head drives the supporting platform 2 and the end of the pipeline forward, and the supporting platform 2 fixed on the tunnel wall starts the power seat 14 below, which can move the pipeline on the supporting platform 2 forward by friction dragging, and the lifting platform vehicle 1 on standby at the tunnel entrance carries a new supporting platform 2 above the deflection table 5 again, moves between the head vehicle and the fixed supporting platform 2, and lifts the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches a predetermined length, the supporting platform 2 is fixed to the tunnel wall again. This arrangement allows large-diameter pipelines to be transported over long distances in tunnels. When the pipeline is transported, there is a fixed lifting platform at every interval, which ensures the stability of pipeline transportation. Compared with the use of multiple transport vehicles, it is not only less costly, but only two lifting platform vehicles 1 are needed for movement, and the support platform 2 does not need to be moved after being fixed, which reduces the difficulty of operation and synchronization, and each support platform 2 has a certain driving force, which cooperates with the pulling force of the pipeline head to ensure that the pipeline is evenly stressed and transported at a uniform speed. 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 methods of the support platform 2 include temporary fixing and permanent fixing, such as: cable pipelines, etc. After the tunnel is completed, the pipeline is left in place, and supports need to be built to fix the pipeline. In the type used in the tunnel, the support platform 2 is directly fixed to the tunnel wall using bolts and fixing plates 8. In this way, when the tunnel is completed, only the support platform 2 needs to be reinforced, and all electrical structures under the support platform 2, such as the separation seat 10 and the deflection table 5, can be disassembled, leaving only the metal frame support platform 2, which greatly reduces the subsequent engineering of fixing pipelines, such as ventilation ducts, etc., which are only pipelines needed during tunnel construction. The support platform 2 is temporarily fixed to the tunnel wall using a negative pressure suction cup 9. When the pipeline is no longer in use, the pipeline and the support platform 2 can be directly disassembled and taken away. The negative pressure suction cup 9 can be disassembled. When the transported pipeline is heavy, multiple negative pressure suction cups 9 can be installed to ensure that the pipeline is supported smoothly.

[0023] The top surface of the support platform 2 is arranged in an arc shape, the top of the driving platform 3 is rotatably connected with a metal roller 16, the top of the metal roller 16 is fixedly connected with a deflection platform 5, the top of the deflection platform 5 is connected with a separation seat 10, and the front end of the driving platform 3 is fixedly connected with a reduction motor 4 for regulating the rotation of the deflection platform 5; During operation, the arc-shaped top surface of the support platform 2 can more stably support a pipe with an arc-shaped surface. When starting to support the pipe, 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 table 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, allowing the tunnel wall to share part of the gravity of the pipe and fixing the support platform 2 to the tunnel wall at the same time. Through this arrangement, the transportation and fixation of the pipeline are more stable and reasonable, and the safety of transportation and fixation is improved.

[0024] The other end of the support platform 2 is provided with a plurality of negative pressure suction cups 12, and a connecting pipe 18 is connected between the negative pressure suction cup 12 and the support platform 2. The connecting pipe 18 is a metal flexible conduit, and a plurality of docking valves 7 for transmitting negative pressure to the negative pressure suction cup 1 9 and the negative pressure suction cup 2 12 are installed on the outside of the support platform 2; During operation, 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 restrained above the pipeline, and the negative pressure suction cup 2 12 can be used to adsorb on the tunnel wall to reduce the pipeline from detaching 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 pull and drag the pipeline forcefully. The outer surface of the connecting pipe 18 of the metal flexible conduit is made of metal, which has deformation resistance and high tensile strength, and can effectively restrain the end of the pipeline. For the equipment located in the middle, it is necessary to ensure that the connecting pipe 18 only simply restrains the pipeline and does not excessively compress the pipeline, thereby not affecting the transportation process of the pipeline.

[0025] The separation seat 10 is composed of a plurality of arc-shaped series arms 19, which are arranged in parallel and at equal distances, and the plurality of series arms 19 are fixedly connected by brackets, and the power seat 14 is fixedly connected to the top of the series arms 19, and the power seat 14 is located below the through hole 13; 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 .

[0026] 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; 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.

[0027] 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; 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.

[0028] 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; 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.

[0029] 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; During operation, in order to facilitate the rotation process of the deflection table 5, the reduction motor 4 is used to control the pulling roller to rotate. The steel cable 15 is wrapped around the pulling roller for one circle, and the outer side of the pulling roller is fixed with a protrusion that matches the surface shape of the steel cable 15 to ensure that the pulling roller can forcefully drive the steel cable 15 when rotating. As the steel cable 15 is pulled, one side of the support platform 2 can be tilted, and the other end is bound by the steel cable 15 to ensure the stable rotation process of the support platform 2; in the process of transporting the pipeline, the bottom surface of the deflection table 5 is in contact with the top surface of the driving table 3, and the metal roller 16 forms a two-point support to ensure the stability of transportation.

[0030] The top corner of the driving platform 3 is set in a smooth transition, the width of the driving platform 3 is smaller than the width of the deflection platform 5, and when the support platform 2 is in a horizontal state, the height near one end of the negative pressure suction cup 2 12 is higher than the height near the negative pressure suction cup 1 9; During operation, the smooth transition of the top surface of the driving platform 3 can increase the contact area of ​​the deflection platform 5 during contact with the driving platform 3 , while reducing the damage of the sharp parts to the deflection platform 5 .

[0031] A convex block is fixedly connected to the bottom of the driving platform 3, and a fixing groove adapted to the convex block is provided on the top of the lifting platform vehicle 1; During operation, the driving platform 3 can also be separated from the lifting platform vehicle 1, so that the entire device can be disassembled, and the lifting platform vehicle 1 can also perform other work normally when not performing pipeline transportation.

[0032] During operation, by driving the separation seat 10 and the support platform 2, a lifting platform vehicle 1 is first used to place and fix the end of the pipeline on the top of the support platform 2, and then the lifting platform vehicle 1 transports the end of the pipeline toward the inside of the tunnel. After transporting a certain distance, another identical device is enabled, and the middle part of the pipeline is lifted using the support platform 2 to prevent excessive bending. When the pipeline transportation stops, the support platform 2 in the middle part is fixed to the inner wall of the tunnel. The fixing method can use a negative pressure suction cup 9 to adsorb the tunnel wall or a fixing plate 8 plus bolts for fixing. At this time, the separation seat 10 and the deflection table 5 under the fixed support platform 2 are separated, and the lifting platform vehicle 1 The entire driving platform 3 and the deflection platform 5 are driven 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 inward, the lifting platform vehicle 1 at the head drives the support platform 2 and the end of the pipeline forward, and the support platform 2 fixed on the tunnel wall starts the power seat 14 below, and the power seat 14 can move the pipeline on the support platform 2 forward by friction dragging, and the lifting platform vehicle 1 on standby 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, and lifts the suspended pipeline. As the pipeline is transported, when the suspended length of the pipeline reaches the predetermined length, the support platform 2 is fixed in the tunnel again. On the wall; through this arrangement, when a large-diameter pipeline is transported over a long distance in a tunnel, there is a fixed lifting platform at each distance, which ensures the stability of pipeline transportation. Compared with the use of multiple transport vehicles, it is not only less costly, but only two lifting platform vehicles 1 are needed for movement, and the support platform 2 does not need to be moved after being fixed, which reduces the difficulty of operation and synchronization, and each support platform 2 has a certain driving force, which cooperates with the pulling force of the pipeline head to ensure that the pipeline is evenly stressed and transported at a uniform speed. 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 methods of the support platform 2 include temporary fixing and permanent fixing, For example, cable pipes, etc., after the completion of the tunnel, the pipes are left in place, and supports need to be built to fix the pipes in the tunnel. Bolts and fixing plates 8 are directly used to fix the support platform 2 on the tunnel wall. In this way, when the tunnel is completed, only the support platform 2 needs to be reinforced, and all electrical structures under the support platform 2, such as the separation seat 10 and the deflection table 5, can be disassembled, leaving only the metal frame support platform 2, which greatly reduces the subsequent engineering of fixing pipes, such as ventilation pipes, etc., which are only pipes that need to be used during the tunnel construction process. The support platform 2 is temporarily fixed to the tunnel wall using a negative pressure suction cup 9. When the pipe is no longer in use, the pipe and the support platform 2 can be directly disassembled and taken away; 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. 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; 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; 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. 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 with the support table 2. The deflection table 5 and the separation seat 10 are connected by a snap-on method. After that, the lifting platform vehicle 1 sinks, and 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, the deflection table 5 needs to be fixed below the separation seat 10 first, and then the separation seat 10 and the support table 2 are released, and finally the separation seat 10 and the deflection table 5 are transferred together; The negative pressure suction cup 2 12 can also be permanently fixed on the tunnel wall by connecting flanges 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. In order to facilitate the rotation process of the deflection table 5, a reduction motor 4 is used to control the pulling roller to rotate. The steel cable 15 is wound around the pulling roller for one circle, and a convex block that matches the surface shape of the steel cable 15 is fixed to the outer side of the pulling roller to ensure that the pulling roller can effectively drive the steel cable 15 when rotating. With the pulling of the steel cable 15, one side of the support platform 2 can be tilted, and the other end is bound by the steel cable 15 to ensure the stable rotation process of the support platform 2. In the process of transporting the pipeline, the bottom surface of the deflection table 5 contacts the top surface of the driving table 3, and the metal roller 16 forms a two-point support to ensure the stability of transportation. The smooth transition of the top surface of the driving platform 3 can increase the contact area of ​​the deflection platform 5 during the contact process with the driving platform 3, while reducing the damage of the sharp parts to the deflection platform 5; The driving platform 3 can also be separated from the lifting platform vehicle 1, so that the entire device can be disassembled, and the lifting platform vehicle 1 can also perform other work normally when not carrying out pipeline transportation.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A large diameter pipeline transportation device in a tunnel, characterized by: The invention comprises a lifting platform vehicle (1), wherein 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), one end of the support platform (2) is equipped with a plurality of negative pressure suction cups (9) and a fixing plate (8) for fixing to the inner wall of a tunnel, 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).

2. The large-diameter pipeline transportation device in a tunnel according to claim 1, characterized in that: The top surface of the support platform (2) is arranged in an arc shape, the top of the driving platform (3) is rotatably connected to a metal roller (16), the top of the metal roller (16) is fixedly connected to a deflection platform (5), the top of the deflection platform (5) is connected to a separation seat (10), and the front end of the driving platform (3) is fixedly connected to a reduction motor (4) for regulating the rotation of the deflection platform (5).

3. The large-diameter pipeline transportation device in a tunnel according to claim 2, characterized in that: A plurality of negative pressure suction cups (12) are arranged at the other end of the support platform (2); a connecting pipe (18) is connected between the negative pressure suction cups (12) and the support platform (2); the connecting pipe (18) is a metal flexible conduit; and a plurality of docking valves (7) for transmitting negative pressure to the negative pressure suction cups (9) and the negative pressure suction cups (12) are installed on the outside of the support platform (2).

4. The large-diameter pipeline transportation device in a tunnel according to claim 3, characterized in that: 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 and 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), and the power seat (14) is located below the through hole (13).

5. The large-diameter pipeline transportation device in a tunnel according to claim 4, characterized in that: A driving roller (20) is mounted 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 an output end of the driving motor is connected to one end of the driving roller (20) via a belt drive.

6. The large-diameter pipeline transportation device in a tunnel according to claim 5, characterized in that: Two parallel dual-outlet hydraulic cylinders (6) are fixedly connected to the middle of the deflection platform (5), and butt-joint pipes (11) adapted to the dual-outlet hydraulic cylinders (6) are installed at both the front and rear ends of the support platform (2).

7. The large-diameter pipeline transportation device in a tunnel according to claim 6, characterized in that: The front end of the negative pressure suction cup 2 (12) is fixedly connected with a connecting flange, a plurality of recovery boxes (17) are installed on the outside 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.

8. The large-diameter pipeline transportation device in a tunnel according to claim 7, characterized in that: The bottom of the deflection platform (5) is fixedly connected to a plurality of steel cables (15) at both ends, the output end of the reduction motor (4) is fixedly connected to a pulling roller, and the steel cables (15) are wound around the pulling roller.

9. The large-diameter pipeline transportation device in a tunnel according to claim 8, characterized in that: The top surface corner of the driving platform (3) is arranged to be smoothly transitioned, the width of the driving platform (3) is smaller than the width of the deflection platform (5), and when the support platform (2) is in a horizontal state, the height close to one end of the negative pressure suction cup 2 (12) is higher than the height close to the negative pressure suction cup 1 (9).

10. The large-diameter pipeline transportation device in a tunnel according to claim 9, characterized in that: A protrusion is fixedly connected to the bottom of the driving platform (3), and a fixing groove adapted to the protrusion is provided on the top of the lifting platform vehicle (1).

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