Pipeline transportation tool and transportation method in limited space

Abstract

The invention relates to the technical field of mechanical and electrical installation, in particular to a pipeline transportation tool and method in a limited space. The pipeline transportation tool comprises a cart, an arc-shaped containing block is installed on the cart through a rotating mechanism, a fixing mechanism is further installed on the rotating mechanism, the fixing mechanism comprises a portal frame, and the portal frame is installed on the rotating mechanism; two fixing rods are fixedly connected to the portal frame, second fixing blocks are fixedly connected to the two fixing rods, clamping arms are rotatably connected to the two ends of each second fixing block, first sliding grooves are formed in the two clamping arms, sliding blocks are jointly slidably connected into the two first sliding grooves, and clamping assemblies are installed on the sliding blocks and the clamping arms. A power assembly is further installed on the portal frame and connected with the sliding block. The pipeline transportation device has the advantages that pipeline transportation in a limited space is achieved, a large amount of manpower consumed by manual carrying is reduced, and the probability of easy overturning is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of electromechanical installation, and in particular to a pipeline transportation tool and method in a confined space. Background Technology

[0002] During the construction of electromechanical installation projects, it is often necessary to transport various pipelines in confined spaces. In this situation, due to the long length, large volume, and heavy weight of the pipelines, large mechanical equipment cannot be used for operation. Manual handling consumes a lot of manpower and is prone to tipping over, which is very dangerous. Summary of the Invention

[0003] To facilitate the transportation of pipelines within a limited space, this application provides a pipeline transportation tool and method for use in a limited space.

[0004] Firstly, this application provides a pipeline transportation tool for confined spaces, which adopts the following technical solution: A pipeline transportation tool for confined spaces includes a trolley with multiple casters rotatably connected to it and a handle. An arc-shaped placement block is mounted on the trolley via a rotating mechanism. A fixing mechanism is also mounted on the rotating mechanism. The fixing mechanism includes a gantry frame mounted on the rotating mechanism. Two fixing rods are fixedly connected to the gantry frame, and a second fixing block is fixedly connected to each of the two fixing rods. Clamping arms are rotatably connected to both ends of the second fixing blocks. Each clamping arm has a first sliding groove, and a sliding block is slidably connected to both first sliding grooves. Clamping components are mounted on the sliding blocks and the clamping arms. A power assembly is also mounted on the gantry frame and connected to the sliding blocks.

[0005] By adopting the above technical solution, when transporting pipes in a confined space, the pipes are manually placed on the arc-shaped placement block, and then the power component is manually adjusted. The power component drives the sliding block to slide, and the sliding block drives the two clamping arms to rotate, thereby clamping the pipes with the clamping components on the sliding block and clamping arms. Then, the handle is manually pushed to move the trolley, thus realizing the transportation of pipes in a confined space. This reduces the large amount of manpower required for manual handling and the probability of tipping over. At the same time, the setting of the sliding block and clamping arms enables the fixing mechanism to clamp and fix pipes of different diameters, improving the applicability of the entire device.

[0006] Optionally, the clamping assembly includes three connecting blocks, which are respectively fixedly connected to the sliding block and the two clamping arms. A second adjusting bolt is threaded onto each connecting block, and a clamping block is fixedly connected to the second adjusting bolt.

[0007] By adopting the above technical solution, the clamping block is used to fix the pipe, and the second adjusting bolt is used to adjust the distance of the clamping block, thereby realizing the clamping and fixing of pipes of different diameters and pipes of different shapes, further improving the applicability of the whole device.

[0008] Optionally, the power assembly includes two trapezoidal lead screws, which are rotatably connected to two fixed rods via bearings and have opposite thread directions. Each of the two sliding blocks contains a lead screw nut, and the two trapezoidal lead screws engage with the two lead screw nuts respectively. A second rotating shaft is rotatably connected to the gantry frame via bearings, and two second driven bevel gears are fixedly connected to the second rotating shaft. A first driven bevel gear is fixedly connected to the end of each of the two trapezoidal lead screws away from the sliding blocks, and the two first driven bevel gears mesh with the two second driven bevel gears respectively. A drive shaft is also rotatably connected to the gantry frame via bearings, and a first drive bevel gear is fixedly connected to the end of the drive shaft near the second rotating shaft. A second drive bevel gear is also fixedly connected to the second rotating shaft, and the two second drive bevel gears mesh with the first drive bevel gears.

[0009] By adopting the above technical solution, when the sliding block slides, the drive shaft is manually rotated, which drives the first drive bevel gear to rotate, the first drive bevel gear to rotate, the second drive bevel gear to rotate, the second drive bevel gear to rotate, the second rotating shaft to rotate, the second rotating shaft to rotate, the two second driven bevel gears to rotate, the two second driven bevel gears to rotate, the two first driven bevel gears to rotate, the two first driven bevel gears to rotate, the two trapezoidal lead screws to rotate, and the rotation of the two trapezoidal lead screws to move the sliding block; thus, the simultaneous fixing of the fixing mechanisms at both ends of the gantry frame is achieved, reducing the number of operation steps.

[0010] Optionally, the rotating mechanism includes a first rotating shaft, which is rotatably connected to the trolley via a bearing. A mounting plate is fixedly connected to one end of the first rotating shaft away from the trolley. The mounting plate is fixedly connected to the gantry and the arc-shaped placement block. A rotating disk is also fixedly connected to the first rotating shaft. A limiting component for limiting the first rotating shaft is also installed on the trolley.

[0011] By adopting the above technical solution, since the pipeline is long, it is very inconvenient to turn in a limited space. The setting of the rotating mechanism realizes the rotation of the pipeline. Therefore, to make turning inconvenient, the first rotating shaft is driven to rotate by the rotating disk, thereby realizing the rotation of the pipeline, which facilitates turning during transportation.

[0012] Optionally, the limiting component includes a limiting gear, which is fixedly connected to the first rotating shaft. A first fixing block is also fixedly connected to the trolley. A second through groove is formed on the side wall of the first fixing block near the first rotating shaft. A first limiting groove is formed on the side wall of the second fixing block away from the first rotating shaft. A second limiting groove is formed on the bottom wall of the first limiting groove. A limiting rod is slidably connected in the second groove. A limiting shaft is rotatably connected to the end of the limiting rod away from the limiting gear. A limiting block is fixedly connected to the side wall of the limiting shaft.

[0013] By adopting the above technical solution, when the first rotating shaft is in the limit position, the limit rod is manually slid so that the limit rod is inserted into the tooth gap of the limit gear. At this time, the limit block is inserted into the second limit groove. Then, the limit shaft is manually rotated so that the limit block is engaged in the second limit groove, thereby achieving the limit position of the first rotating shaft.

[0014] Optionally, the trolley is also equipped with a loading and unloading mechanism, which includes two lifting blocks, both of which are slidably connected to the trolley. Two connecting ears are fixedly connected to the side walls of each of the two lifting blocks. Two fixing plates are fixedly connected to the end face of the lifting block away from the trolley. An arc-shaped rotating roller is rotatably connected to the end faces of the two fixing plates that are close to each other. The trolley is also equipped with multiple hydraulic push rods. The piston shafts of the multiple hydraulic push rods are fixedly connected to the multiple connecting ears respectively. The multiple hydraulic push rods are all controlled by solenoid valves, and the multiple solenoid valves are all communicatively connected to the same controller.

[0015] By adopting the above technical solution, when loading and unloading the pipeline, the hydraulic push rod is activated. The hydraulic push rod drives the lifting block to rise through the connecting lug. The lifting block drives the arc-shaped rotating roller to rise above the height of the arc-shaped placement block, thereby supporting and sliding the pipeline, making the loading and unloading of the pipeline more convenient and improving transportation efficiency. At the same time, the setting of the arc-shaped rotating roller reduces the probability of the pipeline falling off during transportation.

[0016] Optionally, the trolley is also equipped with a support mechanism, which includes multiple support legs, all of which are slidably connected to the trolley and are connected to the lifting block via a transmission assembly.

[0017] By adopting the above technical solution, when loading and unloading pipelines, the rising of the lifting block is transmitted to the support leg through the transmission component, and the support leg is controlled to slide to support the trolley, which reduces the probability of the trolley accidentally sliding when loading and unloading pipelines, thereby improving the operational safety of pipeline loading and unloading.

[0018] Optionally, the transmission assembly includes a connecting rod, which is fixedly connected to the lifting block. A first rack is fixedly connected to one end of the connecting rod away from the lifting block. The trolley is also provided with an installation groove, in which a third rotating shaft is rotatably connected. A gear is fixedly connected to the third rotating shaft, and the gear meshes with the first rack. A second rack is fixedly connected to the support leg, and the second rack also meshes with the gear.

[0019] By adopting the above technical solution, the transmission component enables the transmission connection between the rising of the lifting block and the falling of the support leg, thereby allowing both to share a single power source, reducing the number of power sources required and resulting in higher energy efficiency.

[0020] Secondly, this application also provides a pipeline transportation method in a confined space, which adopts the following technical solution: A pipeline transportation method in a confined space includes the following steps: Step 1: When installing the pipe, start the hydraulic push rod. The hydraulic push rod will drive the lifting block to rise until the height of the arc-shaped rotating roller exceeds the arc-shaped placement block. At the same time, the rise of the lifting block will drive the support legs to support the trolley on the ground. Then, manually place the pipe on the arc-shaped rotating roller and push the pipe to the appropriate position. At this time, start the hydraulic push rod again to make the pipe fall onto the arc-shaped placement block. Step 2: Manually rotate the drive shaft, which drives the first drive bevel gear to rotate, which in turn drives the second drive bevel gear to rotate, which in turn drives the second rotating shaft to rotate, which in turn drives the two second driven bevel gears to rotate, which in turn drives the two first driven bevel gears to rotate, which in turn drives the two trapezoidal lead screws to rotate, which in turn drives the sliding block to slide, thereby causing the clamping block to clamp the pipe; Step 3: Rotate the second adjusting bolt according to the shape of the pipe. The second adjusting bolt drives the clamping block to clamp the pipe, thereby achieving clamping of pipes of different shapes. Step 4: When in a turning position, manually rotate the turntable to drive the pipe to rotate. When the pipe rotates to the designated position, manually slide the limit rod so that the limit rod is inserted into the tooth gap of the limit gear. At this time, the limit block is inserted into the first limit groove. Then manually rotate the limit block so that the limit block is engaged in the second limit groove, thereby achieving the limitation of the first rotating shaft. Step 5: After the pipe is transported to the designated location, manually rotate the drive shaft in the opposite direction to loosen the clamping block from the pipe. Then, start the hydraulic push rod, which will lift the lifting block and move the pipe away from the arc-shaped placement block. At the same time, the lifting block will lift the support legs to the ground to support the trolley. Then, manually slide the pipe off the arc-shaped rotating roller.

[0021] In summary, this application includes the following beneficial technical effects: 1. When transporting pipes within a confined space, the pipe is manually placed onto the arc-shaped placement block. Then, the power component is manually adjusted, causing the sliding block to slide. The sliding block then rotates the two clamping arms, which clamp the pipe with the clamping components on the sliding block and clamping arms. Finally, the handle is manually pushed to move the trolley, thus enabling the transport of pipes within a confined space. This reduces the labor-intensive and risky manual handling required by traditional methods. Furthermore, the sliding block and clamping arms allow for the clamping and securing of pipes of different diameters, improving the overall applicability of the device. 2. The clamping block is used to fix the pipe, and the second adjusting bolt is used to adjust the distance of the clamping block, thereby enabling the clamping and fixing of pipes of different diameters and shapes, and further improving the applicability of the whole device. 3. When the sliding block slides, the drive shaft is manually rotated. The drive shaft drives the first drive bevel gear to rotate, which in turn drives the second drive bevel gear to rotate. The second drive bevel gear drives the second rotating shaft to rotate, which in turn drives two second driven bevel gears to rotate. The two second driven bevel gears then drive two first driven bevel gears to rotate, which in turn drive two trapezoidal lead screws to rotate. The rotation of the two trapezoidal lead screws causes the sliding block to slide. This achieves simultaneous fixing of the fixing mechanisms at both ends of the gantry frame, reducing the number of operation steps. 4. When loading and unloading pipelines, the hydraulic push rod is activated. The hydraulic push rod drives the lifting block to rise through the connecting lug. The lifting block drives the arc-shaped rotating roller to rise above the height of the arc-shaped placement block, thereby supporting and sliding the pipeline, making the loading and unloading of pipelines more convenient and improving transportation efficiency. At the same time, the arc-shaped rotating roller reduces the probability of the pipeline falling off during transportation. 5. When loading and unloading pipelines, the rising of the lifting block is transmitted to the support leg through the transmission component, and the support leg is controlled to slide to support the trolley, which reduces the probability of the trolley accidentally sliding during pipeline loading and unloading, thereby improving the operational safety of pipeline loading and unloading. In addition, the setting of the transmission component realizes the transmission connection between the rising of the lifting block and the falling of the support leg, thus enabling both to share a single power source, reducing the number of power sources and making energy utilization more efficient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a pipeline transportation vehicle in a confined space, as described in the embodiments of this application. Figure 2 This is a side view of the rotating mechanism in an embodiment of this application; Figure 3 This is a cross-sectional view of the limiting component in an embodiment of this application; Figure 4 This is a schematic diagram of the fixing mechanism in the embodiments of this application; Figure 5 This is a side view of the fixing mechanism in an embodiment of this application; Figure 6 This is a top view of the power assembly in an embodiment of this application; Figure 7 This is a schematic diagram of the loading and unloading mechanism in an embodiment of this application; Figure 8 This is a cross-sectional view of the support mechanism in an embodiment of this application.

[0023] Reference numerals: 1. Trolley; 11. Mounting slot; 2. Caster wheel; 3. Handle; 4. Rotating mechanism; 41. First rotating shaft; 42. Rotating disc; 43. Mounting plate; 44. Limiting assembly; 441. Limiting gear; 442. First fixing block; 443. Limiting rod; 444. Limiting block; 445. Limiting shaft; 446. Second sliding groove; 447. First limiting groove; 448. Second limiting groove; 5. Arc-shaped placement block; 6. Fixing mechanism; 61. Gantry frame; 62. Fixing rod; 63. Second fixing block; 64. Clamping arm; 641. First sliding groove; 65. Sliding block; 66. Clamping assembly; 661. Connection 662. Second adjusting bolt; 663. Clamping block; 67. Power assembly; 671. Trapezoidal lead screw; 672. First driven bevel gear; 673. Second rotating shaft; 674. Second driven bevel gear; 675. Drive shaft; 676. First driving bevel gear; 677. Second driving bevel gear; 7. Loading and unloading mechanism; 71. Lifting block; 72. Hydraulic push rod; 73. Connecting ear; 74. Fixing plate; 75. Arc-shaped rotating roller; 8. Support mechanism; 81. Support leg; 82. Transmission assembly; 821. Connecting rod; 822. First rack; 823. Third rotating shaft; 824. Gear; 825. Second rack. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0025] This application discloses a pipeline transportation tool for use in confined spaces.

[0026] refer to Figure 1A pipeline transportation tool in a confined space includes a trolley 1, with multiple casters 2 rotatably connected to the bottom wall of the trolley 1, a handle 3 installed on the trolley 1, and an arc-shaped placement block 5 installed on the end face of the trolley 1 away from the casters 2 via a rotating mechanism 4. A fixing mechanism 6 is also installed on the rotating mechanism 4, and a loading and unloading mechanism 7 for loading and unloading pipelines and a support mechanism 8 for supporting the trolley 1 are also installed on the trolley 1.

[0027] When transporting pipes in a confined space, the pipes are manually placed on the loading and unloading mechanism 7, and then placed on the arc-shaped placement block 5 by the loading and unloading mechanism 7. The fixing mechanism 6 is then manually adjusted to clamp the pipes. The handle 3 is then manually pushed to move the trolley 1, thereby realizing the transport of pipes in a confined space. This reduces the large amount of manpower required for manual handling and the probability of tipping over.

[0028] refer to Figure 2 and Figure 3 The rotating mechanism 4 includes a first rotating shaft 41, which is rotatably connected to the end face of the trolley 1 away from the universal wheel 2 via a bearing. A mounting plate 43 is fixedly connected to the end of the first rotating shaft 41 away from the trolley 1, and the mounting plate 43 is fixedly connected to the arc-shaped placement block 5. A rotating disk 42 is also fixedly connected to the first rotating shaft 41. A limiting component 44 for limiting the first rotating shaft 41 is also installed on the trolley 1. The limiting component 44 includes a limiting gear 441, which is fixedly connected to the first rotating shaft 41. The end face of the trolley 1 away from the universal wheel 2 is fixedly connected to the first rotating shaft 41. A first fixing block 442 is fixedly connected to the end face of the wheel 2. A second sliding groove 446 is provided on the side wall of the first fixing block 442 near the first rotating shaft 41. A first limiting groove 447 is provided on the side wall of the second fixing block 63 away from the first rotating shaft 41. A second limiting groove 448 is provided on the bottom wall of the first limiting groove 447. A limiting rod 443 is slidably connected in the second sliding groove 446. A limiting shaft 445 is rotatably connected to the end of the limiting rod 443 away from the limiting gear 441. A limiting block 444 is fixedly connected to the side wall of the limiting shaft 445.

[0029] Because the pipeline is quite long, it is very inconvenient to make turns in a limited space. The rotating mechanism 4 enables the pipeline to rotate, thus making it easier to make turns during transportation. At the same time, when the first rotating shaft 41 is in the limit position, the limit rod 443 is manually slid so that the limit rod 443 is inserted into the tooth gap of the limit gear 441. At this time, the limit block 444 is inserted into the second limit groove 448. Then, the limit shaft 445 is manually rotated so that the limit block 444 is engaged in the second limit groove 448, thereby limiting the first rotating shaft 41.

[0030] refer to Figure 4 and Figure 5 The fixing mechanism 6 includes a gantry frame 61, which is fixedly connected to the end face of the mounting plate 43 away from the first rotating shaft 41. Fixing rods 62 are fixedly connected to both side walls of the gantry frame 61. A second fixing block 63 is fixedly connected to the ends of the two fixing rods 62 that are far apart from each other. Clamping arms 64 are rotatably connected to both ends of the second fixing blocks 63. A first sliding groove 641 is provided on the side wall of the two clamping arms 64. A sliding block 65 is slidably connected in the two first sliding grooves 641. Clamping components 66 are installed on the sliding block 65 and the clamping arms 64. A power component 67 is also installed on the gantry frame 61 and is connected to the sliding block 65.

[0031] The clamping assembly 66 includes three connecting blocks 661, which are respectively fixedly connected to the sliding block 65 and the two clamping arms 64. A second adjusting bolt 662 is threaded onto the connecting block 661, and a clamping block 663 is fixedly connected to the second adjusting bolt 662.

[0032] When transporting pipes within a confined space, the pipe is manually placed onto the arc-shaped placement block 5, and then the power component 67 is manually adjusted. The power component 67 drives the sliding block 65 to slide, and the sliding block 65 drives the two clamping arms 64 to rotate, thereby clamping the pipe with the clamping blocks 663 on the sliding block 65 and the clamping arms 64. Then, the handle 3 is manually pushed to move the trolley 1, thus realizing the transport of pipes within a confined space, reducing the large amount of manpower required for manual handling and the probability of tipping over. At the same time, the setting of the sliding block 65 and the clamping arms 64 enables the fixing mechanism 6 to clamp and fix pipes of different diameters, improving the applicability of the entire device. In addition, the setting of the second adjusting bolt 662 enables the adjustment of the distance of the clamping blocks 663, thereby realizing the clamping and fixing of pipes of different diameters and also enabling the clamping of pipes of different shapes, further improving the applicability of the entire device.

[0033] refer to Figure 5 and Figure 6The power assembly 67 includes two trapezoidal lead screws 671, which are rotatably connected to two fixed rods 62 via bearings and have opposite thread directions. Each of the two sliding blocks 65 contains a lead screw nut, and the two trapezoidal lead screws 671 engage with the two lead screw nuts respectively. A second rotating shaft 673 is rotatably connected to the gantry frame 61 via bearings. Two second driven bevel gears 674 are fixedly connected to the second rotating shaft 673. The ends of the two trapezoidal lead screws 671 furthest from the sliding blocks 65 are each fixedly connected to... The first driven bevel gear 672 meshes with the two second driven bevel gears 674 respectively; the end face of the gantry frame 61 away from the mounting plate 43 is also rotatably connected to the drive shaft 675 through the bearing. The end of the drive shaft 675 near the second rotating shaft 673 is fixedly connected to the first drive bevel gear 676, and the ends of the two second rotating shafts 673 that are close to each other are fixedly connected to the second drive bevel gears 677. The two second drive bevel gears 677 mesh with the first drive bevel gears 676.

[0034] When the sliding block 65 slides, the drive shaft 675 is manually rotated. The drive shaft 675 drives the first drive bevel gear 676 to rotate, the first drive bevel gear 676 drives the second drive bevel gear 677 to rotate, the second drive bevel gear 677 drives the second rotating shaft 673 to rotate, the second rotating shaft 673 drives the two second driven bevel gears 674 to rotate, the two second driven bevel gears 674 drive the two first driven bevel gears 672 to rotate, the two first driven bevel gears 672 drive the two trapezoidal lead screws 671 to rotate, and the rotation of the two trapezoidal lead screws 671 causes the sliding block 65 to slide. This achieves simultaneous fixing of the fixing mechanisms 6 at both ends of the gantry frame 61, reducing the number of operation steps.

[0035] refer to Figure 7 The loading and unloading mechanism 7 includes two lifting blocks 71, both of which are slidably connected to the trolley 1. Two fixed plates 74 are fixedly connected to the end face of the lifting block 71 away from the trolley 1. The end faces of the two fixed plates 74 that are close to each other are rotatably connected to an arc-shaped rotating roller 75. Two connecting ears 73 are fixedly connected to the side walls of the two lifting blocks 71. Four hydraulic push rods 72 are also installed on the trolley 1. The four hydraulic push rods 72 are located on both sides of the two lifting blocks 71. The piston shafts of the four hydraulic push rods 72 are fixedly connected to the four connecting ears 73. The four hydraulic push rods 72 are all controlled by solenoid valves, and the four solenoid valves are all connected to the same controller.

[0036] When loading and unloading the pipeline, the hydraulic push rod 72 is activated. The hydraulic push rod 72 drives the lifting block 71 to rise through the connecting lug 73. The lifting block 71 drives the arc-shaped rotating roller 75 to rise above the height of the arc-shaped placement block 5, thereby supporting and sliding the pipeline, making the loading and unloading of the pipeline more convenient and improving transportation efficiency. At the same time, the arc-shaped rotating roller 75 reduces the probability of the pipeline falling off during transportation.

[0037] refer to Figure 8 The trolley 1 is also equipped with a support mechanism 8, which includes multiple support legs 81. The multiple support legs 81 are slidably connected to the trolley 1 and are connected to the lifting block 71 through a transmission assembly 82. The transmission assembly 82 includes a connecting rod 821, which is fixedly connected to the lifting block 71. A first rack 822 is fixedly connected to the end of the connecting rod 821 away from the lifting block 71. An installation groove 11 is also provided on the end face of the trolley 1 away from the universal wheel 2. A third rotating shaft 823 is rotatably connected in the installation groove 11. A gear 824 is fixedly connected to the third rotating shaft 823. The gear 824 meshes with the first rack 822. A second rack 825 is fixedly connected to the support leg 81. The second rack 825 also meshes with the gear 824.

[0038] When loading and unloading pipelines, the lifting block 71 rises, causing the connecting rod 821 to rise. The connecting rod 821 then causes the first rack 822 to rise, which in turn causes the gear 824 to rotate. The gear 824, through the second rack 825, causes the support leg 81 to descend and controls the support leg 81 to slide and support the trolley 1. This reduces the probability of the trolley 1 accidentally sliding during pipeline loading and unloading, thereby improving the operational safety of pipeline loading and unloading. The transmission component 82 enables the transmission connection between the rising of the lifting block 71 and the descending of the support leg 81, allowing both to share a single power source, reducing the number of power sources required and resulting in higher energy efficiency.

[0039] This embodiment also discloses a pipeline transportation method in a confined space, including the following steps: Step 1: When installing the pipe, start the hydraulic push rod 72. The hydraulic push rod 72 drives the lifting block 71 to rise until the height of the arc-shaped rotating roller 75 exceeds the arc-shaped placement block 5. At the same time, the rise of the lifting block 71 drives the support leg 81 to support the trolley 1 on the ground. Then, manually place the pipe on the arc-shaped rotating roller 75 and push the pipe to the appropriate position. At this time, start the hydraulic push rod 72 again to make the pipe fall onto the arc-shaped placement block 5. Step 2: Manually rotate the drive shaft 675. The drive shaft 675 drives the first drive bevel gear 676 to rotate, the first drive bevel gear 676 drives the second drive bevel gear 677 to rotate, the second drive bevel gear 677 drives the second rotating shaft 673 to rotate, the second rotating shaft 673 drives the two second driven bevel gears 674 to rotate, the two second driven bevel gears 674 respectively drive the two first driven bevel gears 672 to rotate, the two first driven bevel gears 672 respectively drive the two trapezoidal lead screws 671 to rotate, the two trapezoidal lead screws 671 rotate causing the sliding block 65 to slide, thereby causing the clamping block 663 to clamp the pipe. Step 3: Rotate the second adjusting bolt 662 according to the shape of the pipe. The second adjusting bolt 662 drives the clamping block 663 to clamp the pipe, thereby achieving clamping of pipes of different shapes. Step 4: When in a turning position, manually rotate the rotating disk 42 to drive the pipe to rotate. When the pipe rotates to the designated position, manually slide the limiting rod 443 so that the limiting rod 443 is inserted into the tooth gap of the limiting gear 441. At this time, the limiting block 444 is inserted into the first limiting groove 447. Then manually rotate the limiting block 444 so that the limiting block 444 is engaged in the second limiting groove 448, thereby limiting the first rotating shaft 41. Step 5: After the pipe is transported to the designated location, first manually rotate the drive shaft 675 in the reverse direction to make the clamping block 663 release the pipe. Then start the hydraulic push rod 72, which drives the lifting block 71 to rise, thereby moving the pipe away from the arc-shaped placement block 5. At the same time, the rise of the lifting block 71 drives the support leg 81 to support the trolley 1 on the ground. Then manually slide the pipe off the arc-shaped rotating roller 75.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipeline transportation tool for confined spaces, characterized in that, The device includes a trolley (1) with multiple casters (2) rotatably connected to it. A handle (3) is also installed on the trolley (1). An arc-shaped placement block (5) is mounted on the trolley (1) via a rotating mechanism (4). A fixing mechanism (6) is also installed on the rotating mechanism (4). The fixing mechanism (6) includes a gantry frame (61) mounted on the rotating mechanism (4). Two fixing rods (62) are fixedly connected to the gantry frame (61). Each of the two clamping arms (64) is fixedly connected to a second fixing block (63). Both ends of the second fixing block (63) are rotatably connected to clamping arms (64). Each clamping arm (64) has a first sliding groove (641). A sliding block (65) is slidably connected in both first sliding grooves (641). A clamping component (66) is installed on the sliding block (65) and the clamping arm (64). A power component (67) is also installed on the gantry frame (61). The power component (67) is connected to the sliding block (65).

2. The pipeline transportation tool in a confined space according to claim 1, characterized in that, The clamping assembly (66) includes three connecting blocks (661), which are fixedly connected to the sliding block (65) and the two clamping arms (64) respectively. A second adjusting bolt (662) is threaded onto the connecting block (661), and a clamping block (663) is fixedly connected to the second adjusting bolt (662).

3. The pipeline transportation tool in a confined space according to claim 2, characterized in that, The power assembly (67) includes two trapezoidal lead screws (671), both of which are rotatably connected to the fixed rod (62) via bearings and have opposite thread directions. Each of the two sliding blocks (65) contains a lead screw nut, and the two trapezoidal lead screws (671) respectively cooperate with the two lead screw nuts. A second rotating shaft (673) is rotatably connected to the gantry frame (61) via bearings. Two second driven bevel gears (674) are fixedly connected to the second rotating shaft (673). The two trapezoidal lead screws (671) are located away from the sliding blocks (65). One end of each is fixedly connected to a first driven bevel gear (672), and the two first driven bevel gears (672) mesh with the two second driven bevel gears (674) respectively. The gantry frame (61) is also rotatably connected to a drive shaft (675) via a bearing. The end of the drive shaft (675) near the second rotating shaft (673) is fixedly connected to a first drive bevel gear (676), and the second rotating shaft (673) is also fixedly connected to a second drive bevel gear (677). The two second drive bevel gears (677) mesh with the first drive bevel gear (676).

4. The pipeline transportation tool in a confined space according to claim 3, characterized in that, The rotating mechanism (4) includes a first rotating shaft (41), which is rotatably connected to the trolley (1) via a bearing. An mounting plate (43) is fixedly connected to one end of the first rotating shaft (41) away from the trolley (1). The mounting plate (43) is fixedly connected to the gantry frame (61) and the arc-shaped placement block (5). A rotating disk (42) is also fixedly connected to the first rotating shaft (41). A limiting component (44) for limiting the first rotating shaft (41) is also installed on the trolley (1).

5. The pipeline transportation tool in a confined space according to claim 4, characterized in that, The limiting component (44) includes a limiting gear (441), which is fixedly connected to the first rotating shaft (41). A first fixing block (442) is also fixedly connected to the trolley (1). A second sliding groove (446) is provided on the side wall of the first fixing block (442) near the first rotating shaft (41). A first limiting groove (447) is provided on the side wall of the second fixing block (63) away from the first rotating shaft (41). A second limiting groove (448) is provided on the bottom wall of the first limiting groove (447). A limiting rod (443) is slidably connected in the second sliding groove (446). A limiting shaft (445) is rotatably connected to one end of the limiting rod (443) away from the limiting gear (441). A limiting block (444) is fixedly connected to the side wall of the limiting shaft (445).

6. The pipeline transportation tool in a confined space according to claim 5, characterized in that, The trolley (1) is also equipped with a loading and unloading mechanism (7), which includes two lifting blocks (71). The two lifting blocks (71) are slidably connected to the trolley (1). Two connecting ears (73) are fixedly connected to the side walls of the two lifting blocks (71). Two fixing plates (74) are fixedly connected to the end face of the lifting block (71) away from the trolley (1). The end faces of the two fixing plates (74) that are close to each other are rotatably connected to an arc-shaped rotating roller (75). The trolley (1) is also equipped with multiple hydraulic push rods (72). The piston shafts of the multiple hydraulic push rods (72) are fixedly connected to the multiple connecting ears (73). The multiple hydraulic push rods (72) are all controlled by solenoid valves, and the multiple solenoid valves are all connected to the same controller.

7. The pipeline transportation tool in a confined space according to claim 6, characterized in that, The trolley (1) is also equipped with a support mechanism (8), which includes multiple support legs (81). The multiple support legs (81) are slidably connected to the trolley (1) and are connected to the lifting block (71) via a transmission assembly (82).

8. The pipeline transportation tool in a confined space according to claim 7, characterized in that, The transmission assembly (82) includes a connecting rod (821), which is fixedly connected to the lifting block (71). A first rack (822) is fixedly connected to one end of the connecting rod (821) away from the lifting block (71). The trolley (1) is also provided with an installation groove (11). A third rotating shaft (823) is rotatably connected in the installation groove (11). A gear (824) is fixedly connected to the third rotating shaft (823). The gear (824) meshes with the first rack (822). A second rack (825) is fixedly connected to the support leg (81). The second rack (825) also meshes with the gear (824).

9. A pipeline transportation method in a confined space, characterized in that, The method of transporting pipelines using the pipeline transport vehicle in a confined space as described in claim 8 includes the following steps: Step 1: When installing the pipe, start the hydraulic push rod (72). The hydraulic push rod (72) drives the lifting block (71) to rise until the height of the arc rotating roller (75) exceeds the arc placement block (5). At the same time, the rise of the lifting block (71) drives the support leg (81) to support the trolley (1) on the ground. Then, manually place the pipe on the arc rotating roller (75) and push the pipe to the appropriate position. At this time, start the hydraulic push rod (72) again so that the pipe falls onto the arc placement block (5). Step 2: Manually rotate the drive shaft (675). The drive shaft (675) drives the first drive bevel gear (676) to rotate. The first drive bevel gear (676) drives the second drive bevel gear (677) to rotate. The second drive bevel gear (677) drives the second rotating shaft (673) to rotate. The second rotating shaft (673) drives the two second driven bevel gears (674) to rotate. The two second driven bevel gears (674) drive the two first driven bevel gears (672) to rotate respectively. The two first driven bevel gears (672) drive the two trapezoidal screws (671) to rotate respectively. The rotation of the two trapezoidal screws (671) drives the sliding block (65) to slide, thereby driving the clamping block (663) to clamp the pipe. Step 3: Rotate the second adjusting bolt (662) according to the shape of the pipe. The second adjusting bolt (662) drives the clamping block (663) to clamp the pipe, thereby achieving clamping of pipes of different shapes. Step 4: When in a turning position, manually rotate the turntable (42) to drive the pipe to rotate. When the pipe rotates to the designated position, manually slide the limit rod (443) so that the limit rod (443) is inserted into the tooth gap of the limit gear (441). At this time, the limit block (444) is inserted into the first limit groove (447). Then manually rotate the limit block (444) so ​​that the limit block (444) is engaged in the second limit groove (448) to achieve the limit of the first rotating shaft (41). Step 5: After the pipe is transported to the designated location, manually rotate the drive shaft (675) in the reverse direction to loosen the clamping block (663) from the pipe. Then start the hydraulic push rod (72). The hydraulic push rod (72) drives the lifting block (71) to rise, thereby moving the pipe away from the arc-shaped placement block (5). At the same time, the rise of the lifting block (71) drives the support leg (81) to support the trolley (1) on the ground. Then manually slide the pipe off the arc-shaped rotating roller (75).

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