Hoisting and transporting system for groove pipeline assembly construction

Abstract

The invention relates to a hoisting and transporting system for groove pipeline splicing construction, and belongs to the field of civil engineering pipeline construction, the hoisting and transporting system comprises a conveying rail and a transporting portal frame, the conveying rail is laid at the groove bottom of a foundation groove, a hoisting mechanism is arranged on the transporting portal frame, and the transporting portal frame moves along the conveying rail; a transfer point is arranged in the foundation groove and located at one end of the conveying rail, and the conveying portal frame hoists the segmental pipes through a hoisting mechanism. According to the construction method, the segmental pipes at the transfer point are hoisted and conveyed to the corresponding segmental pipe installation positions in the foundation groove through the transportation portal frame, then the pipeline lengthening operation is conducted, all the segmental pipes repeat the operation till pipeline lengthening is completed, frequent disassembly and assembly of the supporting structure are not needed, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of civil engineering pipeline construction, and in particular to a trench pipeline assembly construction hoisting and transportation system. Background Art

[0002] Underground pipelines are pipes laid underground for transporting liquids, gases or loose solids.

[0003] In the related art, for the installation of underground ductile iron pipes, a foundation trench is first excavated on the ground, extending in the direction of the length of the pipe. Then, a tripod lever consisting of seamless steel pipes, steel ropes, and a hand hoist is used to lift the pipe segment. The center lines of the socket of one cast iron pipe segment and the socket of another cast iron pipe segment are aligned. Then, a crowbar or similar tool is used at the rear of the pipe to pry the cast iron pipe segment forward so that the socket and the socket are completely aligned. The socket is inserted into the socket. When the two cast iron pipe segments are connected, the relevant tools are removed, and 50 cm of gravel soil is placed at the interface and compacted to ensure that the cast iron pipe is fixed intact. The above process is repeated for the installation of the next cast iron pipe segment.

[0004] Frequent disassembly and assembly of the tripod rods is rather cumbersome and also brings greater uncertainty to the construction site, affecting construction efficiency and pipeline laying quality. Summary of the Invention

[0005] In order to improve the above problems, the present application provides a trench pipe assembly construction hoisting and transportation system.

[0006] The present application provides a trench pipe assembly construction hoisting and transportation system that adopts the following technical solutions:

[0007] A trench pipe assembly construction hoisting and transportation system includes a conveying track and a transport gantry. The conveying track is laid on the bottom of the basic trench. The transport gantry is provided with a hoisting mechanism. The transport gantry moves along the conveying track. The basic trench and one end of the conveying track are transfer points. The transport gantry hoists the segmented pipe through the hoisting mechanism.

[0008] Preferably, the transport gantry includes two door frames and multiple connecting beams, each end of the connecting beam is fixedly connected to a door frame, the door frame includes a horizontal beam and two vertical beams, the length direction of the connecting beam is parallel to the axis of the segment tube; the lifting mechanism includes two lifting ropes, two basic hooks and two electric hoists, the basic hooks and electric hoists are both connected to the horizontal beams of the door frame, one end of the lifting rope is connected to the basic hook, and the other end is connected to the electric hoist, and the lifting rope passes around the bottom of the segment tube.

[0009] Preferably, the transport gantry also includes a horizontal rib, one end of which is fixedly connected to the connecting beam, and the other end is fixedly connected to the crossbeam. The lifting mechanism also includes a plurality of mounting blocks, which are slidably arranged on the crossbeam and located between the horizontal rib and the vertical beam. A single mounting block is provided for connection and installation of an electric hoist or a basic hook.

[0010] Preferably, two abutment beams are provided on a single door frame, one end of the abutment beam is connected to the horizontal beam, and the other end is connected to the vertical beam, the two abutment beams are symmetrically arranged relative to the axis of the segment tube, and the length directions of the two abutment beams are staggered with each other, and a contact pad is fixedly connected to the abutment beam, and the side wall of the segment tube abuts against the contact pad.

[0011] Preferably, both ends of the abutting beam are hinged with connecting sliders, one of which is set to slide along the horizontal beam, and the other is set to slide along the vertical beam. An adjustment block is provided on the horizontal beam, and a margin spring is fixedly connected between the adjustment block and the connecting slider slidably connected to the horizontal beam, and the expansion and contraction direction of the margin spring is parallel to the length direction of the horizontal beam.

[0012] Preferably, the hoisting mechanism further includes a safety rope, the two ends of which are respectively hung on two abutting beams, the safety rope passes around from under the segment pipe, a safety clip is fixedly connected to the safety rope, and the safety clip is clamped on the end pipe wall of the segment pipe.

[0013] Preferably, the adjustment block is slidably connected to the crossbeam, the sliding direction is parallel to the length direction of the crossbeam, and the hoisting mechanism includes a control component for controlling the sliding of the adjustment block.

[0014] Preferably, the control assembly includes a safety fixing cylinder, a piston rod and a control block, the safety fixing cylinder is fixedly connected to the door frame, the length direction of the safety fixing cylinder is consistent with the length direction of the crossbeam, one end of the piston rod extends into the safety fixing cylinder, and the other end is fixedly connected to the adjustment block, and a pressure relief capillary hole is provided at the end of the safety fixing cylinder away from the adjustment block, the control block and the crossbeam are movably connected, the movable direction is perpendicular to the axial direction of the safety fixing cylinder, the axis of the pressure relief capillary hole is parallel to the axial direction of the safety fixing cylinder, the end faces of the control block and the safety fixing cylinder away from the adjustment block abut against each other, and there is friction between the adjustment block and the crossbeam.

[0015] Preferably, a response beam is hinged on the crossbeam, the hinge axis and the length direction of the response beam are parallel to the length direction of the crossbeam, the basic hook and the control block are fixedly connected to the response beam, and a response spring is connected between the response beam and the crossbeam.

[0016] This application includes at least one of the following beneficial technical effects:

[0017] 1. Through the arrangement of the transmission track, transport gantry and lifting mechanism, the crane lowers the segmental pipe to the transfer point in the foundation trench. The transport gantry then lifts the segmental pipe and transports it to the corresponding segmental pipe installation position in the foundation trench. The pipe is then connected. The above operation is repeated for each segmental pipe until the pipe connection is completed. There is no need to frequently disassemble and assemble the supporting structure, which improves construction efficiency.

[0018] 2. Through the setting of the safety rope and the abutment beam, when the lifting rope or the foundation hook fails or is damaged and the segment pipe suddenly falls, the safety rope can support the segment pipe, and the abutment beam moves after being pulled by the end of the safety rope. The residual spring and the control component have a buffering effect on the force movement amplitude of the abutment beam, reducing the size of the rebound impact force of the safety rope on the segment pipe and improving the structural protection of the segment pipe after falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the trench pipe assembly construction hoisting and transportation system in Example 1 of the present application.

[0020] Figure 2 It is a structural cross-sectional diagram used to reflect the groove pipeline assembly construction hoisting and transportation system in Example 1 of the present application.

[0021] Figure 3 It is a structural cross-sectional diagram used to reflect the trench pipe assembly construction hoisting and transportation system in Example 2 of the present application.

[0022] Figure 4 It is a schematic cross-sectional view of the structure before and after the basic hook hangs the lifting rope in Example 2 of the present application, which is used to reflect the working principle of the control component.

[0023] Figure 5 This is a schematic diagram of the coordination structure of the safety rope and the segment tube in the second embodiment of the present application.

[0024] Explanation of the accompanying symbols: 1. Foundation groove; 11. Transfer point; 12. Sandbag; 13. Conveyor track; 14. Segmental pipe; 2. Transport gantry; 21. Connecting beam; 22. Door frame; 221. Crossbeam; 222. Vertical beam; 23. Horizontal rib; 24. Abutment beam; 241. Contact pad; 242. Connecting slider; 3. Lifting mechanism; 31. Lifting rope; 32. Foundation hook; 33. Electric hoist; 34. Mounting block; 34. Adjustment block; 341. Allowance spring; 35. Safety rope; 351. Safety clip; 36. Control assembly; 361. Safety fixing cylinder; 3611. Pressure relief capillary hole; 362. Piston rod; 363. Control block; 364. Response beam; 365. Response spring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 This application is described in further detail.

[0026] Example 1:

[0027] The embodiment of the present application discloses a trench pipe assembly construction hoisting and transportation system, such as Figure 1 and 2 As shown, the system includes a conveyor track 13, a transport gantry 2, and a lifting mechanism 3. The pipes are laid along the length of the foundation trench 1. The conveyor track 13 is laid at the bottom of the foundation trench 1 along its length. The transport gantry 2, equipped with a motor to propel itself, moves along the conveyor track 13. Within the foundation trench 1, at one end of the conveyor track 13, is a transfer point 11. The lifting machinery lowers the pipe segments 14 to the bottom of the foundation trench 1 at this transfer point. The transport gantry 2 then lifts the pipe segments 14 using the lifting mechanism 3 and transports them to the connecting pipe.

[0028] like Figure 1 and 2 As shown, the transport gantry 2 includes two door frames 22, multiple connecting beams 21 and multiple horizontal ribs 23. The two ends of each connecting beam 21 are fixedly connected to a door frame 22, and the length direction of the connecting beam 21 is consistent with the length direction of the conveying track 13; a single door frame 22 includes a cross beam 221 and two vertical beams 222, and the length direction of the connecting beam 21 is parallel to the axis of the segment tube 14; the two vertical beams 222 are welded and fixed to the opposite ends of the cross beam 221. One end of the horizontal reinforcement rod 23 is fixedly connected to the connecting beam 21, and the other end is fixedly connected to the crossbeam 221. A single crossbeam 221 connects two horizontal reinforcement rods 23. The lifting mechanism 3 includes two lifting ropes 31, two base hooks 32, two electric hoists 33, and four mounting blocks 34. The mounting blocks 34 are slidably mounted on the crossbeam 221 and located between the horizontal reinforcement rod 23 and the vertical beam 222. Each mounting block 34 is used to securely mount one electric hoist 33 or one base hook 32. This allows the electric hoist 33 and base hook 32 to adjust their positions on the portal frame 22 within a certain range via the mounting blocks 34. One end of the lifting rope 31 is connected to the base hook 32, and the other end is connected to the electric hoist 33. The lifting rope 31 passes around the bottom of the segment tube 14, and the two lifting ropes 31 jointly support the weight of a segment tube 14. The position of the mounting blocks 34 is adaptively adjusted according to the diameter of the segment tube 14 to improve the centering of the segment tube 14 relative to the transport portal frame 2. Sandbags 12 for temporary raising are placed at the bottom of the foundation trench 1 at the transfer point 11. After the segment pipe 14 enters the foundation trench 1, it is first lowered by the lifting machinery onto the pile of sandbags 12 to facilitate the lifting rope 31 to pass under the segment pipe 14.

[0029] Example 2:

[0030] like Figure 3 and 4 As shown, this embodiment differs from the above-mentioned embodiment in that the mounting block 34 is not provided. The electric hoist 33 is directly fixedly connected to the crossbeam 221. A response beam 364 is hingedly connected to the crossbeam 221, and its hinge axis and length direction are parallel to the length direction of the crossbeam 221. The base hook 32 is fixedly connected to the response beam 364. A response spring 365 is connected between the response beam 364 and the crossbeam 221. When the base hook 32 is in an idle state, there is a gap between the response beam 364 and the crossbeam 221. When the hoisting rope 31 is hung on the base hook 32 and the hoisting rope 31 carries the segment pipe 14, the base hook 32 receives a downward pull and swings 35 degrees, causing the response beam 364 and the crossbeam 221 to abut against each other.

[0031] like Figure 3 As shown, a single door frame 22 is provided with two abutting beams 24, each hingedly connected to a connecting slider 242 at each end. One connecting slider 242 slides along the horizontal beam 221 in a direction that coincides with the length of the horizontal beam 221, while the other connecting slider 242 slides along the vertical beam 222 in a direction that coincides with the length of the vertical beam 222. Two adjustment blocks 34 are provided on the horizontal beam 221, with each adjustment block 34 positioned between the abutting beam 24 and the vertical beam 222 on the same side. A margin spring 341 is fixedly connected between the adjustment block 34 and the connecting slider 242 that is slidably connected to the horizontal beam 221. The expansion and contraction direction of the margin spring 341 is parallel to the length of the horizontal beam 221. In a natural state, the lengths of the two abutting beams 24 intersect with each other. A contact pad 241 is fixedly connected to the side of the abutment beam 24 facing the segmented tube 14. The electric hoist 33 reels the lifting rope 31 to raise the segmented tube 14 until the side wall of the segmented tube 14 abuts the contact pad 241. At this time, the lifting rope 31 and the two abutment beams 24 form a clamping position around the segmented tube 14, ensuring high stability of the segmented tube 14 during transportation. Due to the sliding movement of the end of the abutment beam 24 relative to the door frame 22 and the presence of the residual spring 341, the abutment beam 24 will swing when abutted by the segmented tube 14, thereby reducing stress damage to the abutment beam 24 and the segmented tube 14.

[0032] like Figure 3 and 5As shown, the lifting mechanism 3 also includes a safety rope 35, the two ends of which are respectively hung on the two abutment beams 24, and the safety rope 35 is passed around from the bottom of the segment tube 14. A safety clip 351 made of plastic is fixedly connected to the safety rope 35, and the safety clip 351 is clamped in the lower quadrant position of the end tube wall of the segment tube 14. In a normal lifting state, the safety rope 35 droops naturally and has no direct contact with the segment tube 14, that is, the safety rope 35 does not support the segment tube 14 at this time; when the lifting rope 31 or the foundation hook 32 fails or is damaged and the segment tube 14 suddenly falls, the safety rope 35 can support the segment tube 14, and at the same time, the abutment beam 24 moves after being pulled by the rope end of the safety rope 35, and its movement trend can play a certain force-relieving role on the safety rope 35: the abutment beam 24 at the position where the rope end of the safety rope 35 is located moves downward, and the upper section of the abutment beam 24 moves close to the vertical beam 222 and the adjustment block 34, and the residual spring 341 is compressed.

[0033] like Figure 3 and 4 As shown, in order to improve the buffering effect of the abutment beam 24 on the segmented pipe 14 when it falls, the adjustment block 34 is slidably connected to the crossbeam 221, and the sliding direction is parallel to the length direction of the crossbeam 221. The lifting mechanism 3 includes a control assembly 36 for controlling the sliding of the adjustment block 34. The control assembly 36 is required to ensure that the adjustment block 34 has a high position stability when the segmented pipe 14 is not falling. When the segmented pipe 14 falls, the adjustment block 34 can move away from the margin spring 341 to increase the movable range of the abutment beam 24. The control assembly 36 includes a safety fixing cylinder 361, a piston rod 362, and a control block 363. The safety fixing cylinder 361 is fixedly connected to the door frame 22, and the length direction of the safety fixing cylinder 361 is consistent with the length direction of the crossbeam 221. One end of the piston rod 362 extends into the safety fixing cylinder 361, and the other end is fixedly connected to the adjustment block 34. A pressure relief capillary hole 3611 is formed through the end of the safety fixing cylinder 361 away from the adjustment block 34. The axis of the pressure relief capillary hole 3611 is parallel to the axis of the safety fixing cylinder 361. The control block 363 is fixedly connected to the response beam 364, so that the control block 363 can swing with the response beam 364, and the swing direction is perpendicular to the axis of the safety fixing cylinder 361. The friction between the adjustment block 34 and the crossbeam 221 ensures that the adjustment block 34 remains stationary at any position within its range of travel while the abutment beam 24 remains stationary.

[0034] like Figure 3 and 4As shown, the control block 363 and the end face of the safety fixing cylinder 361 away from the adjusting block 34 are in contact with each other. When the basic hook 32 does not hang the lifting rope 31 that carries the segment pipe 14, the control block 363 is in a position that does not block the pressure relief capillary hole 3611. When the basic hook 32 and the electric hoist 33 lift the segment pipe 14 through the lifting rope 31, the basic hook 32 and the control block 363 both swing downward, and the control block 363 blocks the pressure relief capillary hole 3611, forming a closed space in the safety fixing cylinder 361. Under the action of air pressure, the piston rod 362 and the adjusting block 34 are difficult to move. Once the segmented tube 14 falls, the gravity acting on the response beam 364 decreases instantaneously. Under the action of the response spring 365, the response beam 364 swings in the opposite direction, and the control block 363 also moves upward, and the pressure relief capillary hole 3611 is opened. When the ability of the piston rod 362 and the adjustment block 34 to move closer to the vertical beam 222 is enhanced, the upper end of the abutment beam 24 has a larger range of slow movement, and the activity of the abutment beam 24 increases the buffering effect provided to the segmented tube 14.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A trench pipe assembly construction hoisting and transportation system, characterized by: The utility model comprises a conveying track (13) and a transport gantry (2), wherein the conveying track (13) is laid on the bottom of a basic groove (1), and the transport gantry (2) is provided with a hoisting mechanism (3). The transport gantry (2) moves along the conveying track (13), and a transfer point (11) is provided in the basic groove (1) and at one end of the conveying track (13). The transport gantry (2) hoists a segment pipe (14) through the hoisting mechanism (3).

2. A trench pipe assembly construction hoisting and transportation system according to claim 1, characterized in that: The transport door frame (2) comprises two door frames (22) and a plurality of connecting beams (21), both ends of the connecting beams (21) are fixedly connected to a door frame (22), the door frame (22) comprises a transverse beam (221) and two vertical beams (222), and the length direction of the connecting beams (21) is parallel to the axis of the segment tube (14); The hoisting mechanism (3) comprises two hoisting ropes (31), two basic hooks (32) and two electric hoists (33). The basic hooks (32) and the electric hoists (33) are both connected to the crossbeam (221) of the door frame (22). One end of the hoisting rope (31) is connected to the basic hook (32), and the other end is connected to the electric hoist (33). The hoisting rope (31) passes around the bottom of the segment pipe (14).

3. A trench pipe assembly construction hoisting and transportation system according to claim 2, characterized in that: The transport gantry (2) further comprises a horizontal rib (23), one end of the horizontal rib (23) being fixedly connected to the connecting beam (21), and the other end being fixedly connected to the crossbeam (221). The hoisting mechanism (3) further comprises a plurality of mounting blocks (34), the mounting blocks (34) being slidably arranged on the crossbeam (221) and being located between the horizontal rib (23) and the vertical beam (222). A single mounting block (34) is provided for connecting and mounting an electric hoist (33) or a base hook (32).

4. A trench pipe assembly construction hoisting and transportation system according to claim 2, characterized in that: Two abutting beams (24) are provided on a single door frame (22), one end of the abutting beam (24) is connected to a horizontal beam (221), and the other end is connected to a vertical beam (222), the two abutting beams (24) are symmetrically arranged relative to the axis of the segment tube (14), the length directions of the two abutting beams (24) are staggered with each other, a contact pad (241) is fixedly connected to the abutting beam (24), and the side wall of the segment tube (14) abuts against the contact pad (241).

5. A trench pipe assembly construction hoisting and transportation system according to claim 4, characterized in that: Both ends of the abutting beam (24) are hingedly connected with connecting sliders (242), one of the connecting sliders (242) is slidably arranged along the cross beam (221), and the other connecting slider (242) is slidably arranged along the vertical beam (222). An adjusting block (34) is provided on the cross beam (221), and a residual spring (341) is fixedly connected between the adjusting block (34) and the connecting slider (242) slidably connected to the cross beam (221). The expansion and contraction direction of the residual spring (341) is parallel to the length direction of the cross beam (221).

6. A trench pipe assembly construction hoisting and transportation system according to claim 5, characterized in that: The hoisting mechanism (3) further comprises a safety rope (35), the two ends of which are respectively hung on two abutting beams (24), the safety rope (35) passing under the segment pipe (14), a safety clip (351) fixedly connected to the safety rope (35), and the safety clip (351) being clamped on the end pipe wall of the segment pipe (14).

7. A trench pipe assembly construction hoisting and transportation system according to claim 6, characterized in that: The regulating block (34) and the crossbeam (221) are slidably connected, the sliding direction is parallel to the length direction of the crossbeam (221), and the hoisting mechanism (3) includes a control component (36) for controlling the sliding of the regulating block (34).

8. The trench pipe assembly construction hoisting and transportation system according to claim 7, characterized in that: The control assembly (36) includes a safety fixing cylinder (361), a piston rod (362) and a control block (363). The safety fixing cylinder (361) is fixedly connected to the door frame (22). The length direction of the safety fixing cylinder (361) is consistent with the length direction of the crossbeam (221). One end of the piston rod (362) extends into the safety fixing cylinder (361), and the other end is fixedly connected to the adjustment block (34). The safety fixing cylinder (361) is away from the adjustment block (3 4), a pressure relief capillary hole (3611) is provided through one end of the control block (363) and the cross beam (221), the movement direction of the control block (363) and the axial direction of the safety fixing cylinder (361) are perpendicular, the axis of the pressure relief capillary hole (3611) and the axial direction of the safety fixing cylinder (361) are parallel, the end faces of the control block (363) and the safety fixing cylinder (361) away from the adjustment block (34) are in contact with each other, and there is friction between the adjustment block (34) and the cross beam (221).

9. The trench pipe assembly construction hoisting and transportation system according to claim 8, characterized in that: A response beam (364) is hinged on the crossbeam (221), and the hinge axis and the length direction of the response beam (364) are parallel to the length direction of the crossbeam (221). The basic hook (32) and the control block (363) are fixedly connected to the response beam (364), and a response spring (365) is connected between the response beam (364) and the crossbeam (221).

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