Pipe jacking construction structure

Abstract

The utility model belongs to the technical field of pipe jacking construction, and discloses a pipeline pipe jacking construction structure which comprises a jacking pipe and a propelling assembly arranged on the jacking pipe, and a rotating plate coaxial with the jacking pipe is rotationally arranged at the end, away from the propelling assembly, of the jacking pipe. A plurality of transmission columns evenly distributed about the axis of the rotating plate are fixed to the side wall of the side, away from the jacking pipe, of the rotating plate, a pushing head is fixed to the end, away from the rotating plate, of each transmission column, a crushing assembly used for crushing soil is arranged on each pushing head, and a rotating mechanism used for driving the rotating plate to rotate is arranged on the jacking pipe. According to the pipe jacking construction device, in the pipe jacking construction process, a rotating mechanism drives a rotating plate to rotate, so that a transmission column connected with the rotating plate, a pushing head connected with the transmission column and a crushing assembly arranged on the pushing head all rotate, the crushing assembly can crush surrounding soil, and the resistance of the soil to the device is reduced; the soil tunneling difficulty of the device is reduced, and the pipe jacking construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking construction technology, and in particular to a pipe jacking construction structure. Background Technology

[0002] Pipe jacking is a trenchless construction method, a technology for laying pipelines without or with minimal excavation. In pipe jacking, the jacking equipment is used to overcome the friction between the pipeline and the surrounding soil in the working pit, pushing the pipeline into the soil at the designed slope, and then the excavated soil is removed.

[0003] Chinese utility model patent with announcement number CN215110912U discloses a pipe jacking structure for curved pipeline construction, which includes a jacking pipe and a machine head fixed at the front end of the jacking pipe. The machine head is conical, which facilitates more efficient drilling into the depth of the tunnel.

[0004] The aforementioned pipe jacking structure for curved pipeline construction uses a conical head to compress the soil during excavation. When encountering harder soil, this compression method increases the difficulty of excavation and hinders the efficiency of pipe jacking construction. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a pipe jacking construction structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pipe jacking construction structure, including a jacking pipe and a propulsion assembly disposed on the jacking pipe, wherein a rotating plate coaxially disposed with the jacking pipe is rotatably disposed at the end of the jacking pipe away from the propulsion assembly, and a plurality of transmission columns evenly distributed about the axis of the rotating plate are fixed on the side wall of the rotating plate away from the jacking pipe, and a propulsion head is fixed at the end of the transmission column away from the rotating plate, wherein a crushing assembly for crushing soil is disposed on the propulsion head, and a rotating mechanism for driving the rotating plate to rotate is disposed on the jacking pipe.

[0007] By adopting the above technical solution, during the pipe jacking construction process, the rotating mechanism drives the rotating plate to rotate, which causes the transmission column connected to the rotating plate, the propulsion head connected to the transmission column, and the crushing component set on the propulsion head to all rotate. The crushing component will crush the surrounding soil, reduce the soil resistance to the device, reduce the difficulty of the device to tunnel through the soil, and improve the efficiency of pipe jacking construction.

[0008] Furthermore, the crushing assembly includes a mounting block fixed to the end of the pusher head away from the jacking pipe and a threaded rod threadedly connected to the mounting block. The end of the mounting block away from the pusher head has an insertion groove. The crushing assembly also includes a crushing blade inserted into the insertion groove and a limiting block fixed to the crushing blade. The end of the mounting block away from the pusher head has a limiting groove for the limiting block to pass through and engage. The insertion groove communicates with the limiting groove. The threaded rod passes through the crushing blade and the limiting block and engages with them.

[0009] By adopting the above technical solution, during the rotation of the propulsion head, both the mounting block connected to the propulsion head and the breaker blade connected to the mounting block rotate. The breaker blade is used to break up the soil, ensuring the normal tunneling operation of the device. In addition, by rotating the threaded rod until it separates from both the breaker blade and the mounting block, the breaker blade can be removed from the insertion slot and replaced for subsequent operation of the device.

[0010] Furthermore, the top tube has an installation groove at one end near the propulsion head, the rotating plate is rotatably installed in the installation groove, and the rotating mechanism includes a motor fixed in the installation groove, a gear fixedly sleeved on the output end of the motor, and a gear ring fixed on the rotating plate and coaxially arranged with the rotating plate, the gear ring meshing with the gear.

[0011] By adopting the above technical solution, after the motor works, it drives the gear to rotate, which causes the gear ring meshing with the gear, the rotating plate fixed to the gear ring, and the transmission column connected to the rotating plate to rotate, so as to ensure the device's work of breaking up the soil.

[0012] Furthermore, the propulsion assembly includes an adjustment block fixed to the end of the jacking pipe away from the propulsion head, a propulsion pipe movably connected to the adjustment block, and an electro-hydraulic push rod fixed to the end of the jacking pipe near the propulsion pipe. The push rod end of the electro-hydraulic push rod is rotatably connected to the end of the propulsion pipe near the jacking pipe. The adjustment block is connected to both the jacking pipe and the propulsion pipe.

[0013] By adopting the above technical solution, after the electric hydraulic push rod is working, its end can be extended or retracted. Since the push tube is movably connected to the adjusting block, the angle between the push tube and the jacking tube can be adjusted so that the device can carry out tunneling work at multiple angles.

[0014] Furthermore, a discharge mechanism is jointly provided on the jacking pipe and the propulsion pipe. The discharge mechanism includes a discharge assembly, which includes a first rotating rod fixed to the propulsion head and coaxially arranged with the propulsion head, a first spiral blade fixedly sleeved on the first rotating rod and located inside the jacking pipe, a reinforcing block fixed inside the propulsion pipe, a second rotating rod passing through the reinforcing block and rotatably connected to it, and a second spiral blade fixedly sleeved on the second rotating rod and located inside the propulsion pipe. The discharge mechanism also includes a transmission assembly for transmitting power to the second rotating rod.

[0015] By adopting the above technical solution, during the rotation of the propulsion head, the first rotating rod connected to the propulsion head and the first spiral blade connected to the first rotating rod are simultaneously powered by the transmission assembly to the second rotating rod, causing the second rotating rod and the second spiral blade connected to the second rotating rod to rotate synchronously with the first rotating rod. During the tunneling operation, the broken soil will create space between the propulsion head and the jacking pipe. The rotating first spiral blade will transport the broken soil from the jacking pipe to the rotating plate, while the rotating second spiral blade will discharge the soil from the rotating plate, facilitating soil removal and reducing the probability of soil accumulation affecting the normal tunneling operation of the device.

[0016] Furthermore, the transmission assembly includes a first U-shaped block fixed to the first rotating rod, a second U-shaped block fixed to the second rotating rod, a first connecting column that passes through and is rotatably connected to the first U-shaped block, a second connecting column that passes through and is rotatably connected to the second U-shaped block, a connecting rod fixed between the first connecting column and the second connecting column, and a connecting block fixed inside the jacking pipe, wherein the first rotating rod passes through the connecting block and is rotatably connected.

[0017] By adopting the above technical solution, during the rotation of the first rotating rod, the first U-shaped block connected to the first rotating rod, the second U-shaped block connected to the first U-shaped block, the connecting rod connected to the second U-shaped block, the second connecting column connected to the connecting rod, the second U-shaped block connected to the second connecting column, and the second rotating rod connected to the second U-shaped block all rotate, so as to ensure the normal discharge of soil.

[0018] Furthermore, the sidewall of the propulsion head is fixed with multiple fragments, and the propulsion head has a frustum-shaped structure.

[0019] By adopting the above technical solution, the crushing effect was improved.

[0020] Furthermore, a heat sink that is fixed to the side wall of the top tube is provided through the inner side wall of the mounting groove.

[0021] By adopting the above technical solution, the heat sink is designed to facilitate the dissipation of heat from inside the mounting slot.

[0022] Furthermore, a telescopic cover is fixed between the jacking pipe and the propulsion pipe.

[0023] By adopting the above technical solution, the installation of the telescopic cover reduces the probability of soil entering between the jacking pipe and the propulsion pipe affecting the normal operation of the electro-hydraulic push rod.

[0024] In summary, the present invention has the following beneficial effects: In this application, by setting up a crushing component, the soil can be crushed, reducing the soil resistance to the device, reducing the difficulty of the device for soil excavation, and improving the efficiency of pipe jacking construction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram illustrating the connection structure between the jacking pipe and the propulsion pipe in an embodiment of this utility model;

[0027] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the jacking pipe and the propulsion pipe;

[0028] Figure 4 This is a schematic diagram illustrating the structure of the crushing component in an embodiment of this utility model;

[0029] Figure 5 yes Figure 3 Enlarged diagram of point A in the middle.

[0030] In the diagram: 1. Jacking pipe; 2. Rotating plate; 3. Transmission column; 4. Propulsion head; 5. Crushing assembly; 51. Mounting block; 52. Threaded rod; 53. Insertion slot; 54. Crushing blade; 55. Limiting block; 56. Limiting groove; 6. Mounting groove; 7. Rotating mechanism; 71. Motor; 72. Gear; 73. Gear ring; 8. Discharge mechanism; 81. Discharge assembly; 811. First rotating rod; 812. First spiral blade; 813. Reinforcing block; 814. Second rotating rod; 815. Second spiral blade; 82. Transmission assembly; 821. First U-shaped block; 822. Second U-shaped block; 823. First connecting column; 824. Second connecting column; 825. Connecting rod; 826. Connecting block; 9. Propulsion assembly; 91. Adjusting block; 92. Propulsion pipe; 93. Electro-hydraulic push rod; 10. Crushing block; 11. Heat sink; 12. Telescopic cover. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] like Figure 1-5As shown in the embodiment of this application, a pipe jacking construction structure is disclosed, including a jacking pipe 1, a crushing component 5, a rotating mechanism 7, a propulsion component 9, and a discharge mechanism 8. A rotating plate 2, coaxially arranged with the jacking pipe 1, is rotatably installed at the end of the jacking pipe 1 away from the propulsion component 9. A plurality of transmission columns 3, evenly distributed about the axis of the rotating plate 2, are fixed on the side wall of the rotating plate 2 away from the jacking pipe 1. A propulsion head 4 is fixed at the end of the transmission column 3 away from the rotating plate 2. An installation groove 6 is opened at the end of the jacking pipe 1 near the propulsion head 4, and the rotating plate 2 is rotatably installed in the installation groove 6.

[0033] A crushing assembly 5 is mounted on the thrust head 4 and is used to crush the soil. The crushing assembly 5 includes a mounting block 51, a threaded rod 52, a crushing blade 54, and a limiting block 55. The mounting block 51 is fixed to the end of the thrust head 4 away from the jacking pipe 1. An insertion groove 53 is provided at the end of the mounting block 51 away from the thrust head 4, and the threaded rod 52 passes through and is threaded onto the mounting block 51. The crushing blade 54 is inserted into the insertion groove 53, and the limiting block 55 is fixed to the crushing blade 54. The threaded rod 52 passes through both the crushing blade 54 and the limiting block 55 and is inserted into them. A limiting groove 56 is provided at the end of the mounting block 51 away from the thrust head 4 for the limiting block 55 to pass through and be inserted into, and the insertion groove 53 communicates with the limiting groove 56.

[0034] A rotating mechanism 7 is mounted on the jacking pipe 1 and is used to drive the rotating plate 2 to rotate. The rotating mechanism 7 includes a motor 71, a gear 72, and a gear ring 73. The motor 71 is fixed in the mounting groove 6. The gear 72 is fixedly sleeved on the output end of the motor 71, and the gear ring 73 is fixed on the rotating plate 2 and coaxially arranged with the rotating plate 2. The gear ring 73 meshes with the gear 72.

[0035] During the pipe jacking 1 construction process, the motor 71 drives the gear 72 to rotate, causing the gear ring 73 meshing with the gear 72, the rotating plate 2 fixed to the gear ring 73, the transmission column 3 connected to the rotating plate 2, the push head 4 connected to the transmission column 3, the mounting block 51 connected to the push head 4, and the breaking blade 54 connected to the mounting block 51 to all rotate. The breaking blade 54 is used to break the soil, reducing the soil resistance to the device, lowering the difficulty of soil excavation, and improving the efficiency of pipe jacking 1 construction. In addition, by rotating the threaded rod 52 until it separates from the breaking blade 54 and the mounting block 51, the breaking blade 54 can be removed from the insertion slot 53 and replaced for subsequent operation of the device.

[0036] The propulsion assembly 9 is mounted on the jacking pipe 1. The propulsion assembly 9 includes an adjusting block 91, a propulsion pipe 92, and an electro-hydraulic push rod 93. In this embodiment, the end of the propulsion pipe 92 furthest from the jacking pipe 1 is connected to a hydraulic device for propulsion; this part is prior art and will not be described in detail here. The adjusting block 91 is fixed to the end of the jacking pipe 1 furthest from the propulsion head 4, and the propulsion pipe 92 is movably connected to the adjusting block 91. The electro-hydraulic push rod 93 is fixed to the end of the jacking pipe 1 near the propulsion pipe 92, and the push rod end of the electro-hydraulic push rod 93 is rotatably connected to the end of the propulsion pipe 92 near the jacking pipe 1. The adjusting block 91 communicates with both the jacking pipe 1 and the propulsion pipe 92. After the electro-hydraulic push rod 93 operates, its push rod end extends or retracts. Because the propulsion pipe 92 is movably connected to the adjusting block 91, the angle between the propulsion pipe 92 and the jacking pipe 1 is adjusted, allowing the device to perform multi-angle tunneling operations.

[0037] The discharge mechanism 8 is jointly mounted on the jacking pipe 1 and the propulsion pipe 92. The discharge mechanism 8 includes a discharge assembly 81 and a transmission assembly 82. The discharge assembly 81 includes a first rotating rod 811, a first spiral blade 812, a reinforcing block 813, and a second rotating rod 814. The first rotating rod 811 is fixed to the propulsion head 4 and coaxially arranged with the propulsion head 4. The first spiral blade 812 is fixedly sleeved on the first rotating rod 811 and located inside the jacking pipe 1. The reinforcing block 813 is fixed inside the propulsion pipe 92. The second rotating rod 814 passes through the reinforcing block 813 and is rotatably connected to it. The second spiral blade 815 is fixedly sleeved on the second rotating rod 814 and located inside the propulsion pipe 92.

[0038] The transmission assembly 82 transmits power to the second rotating rod 814. The transmission assembly 82 includes a first U-shaped block 821, a second U-shaped block 822, a first connecting post 823, a second connecting post 824, a connecting rod 825, and a connecting block 826. The first U-shaped block 821 is fixed to the first rotating rod 811, and the second U-shaped block 822 is fixed to the second rotating rod 814. The first connecting post 823 passes through and is rotatably connected to the first U-shaped block 821, and the second connecting post 824 passes through and is rotatably connected to the second U-shaped block 822. The connecting rod 825 is fixed between the first connecting post 823 and the second connecting post 824. The connecting block 826 is fixed inside the jacking pipe 1, and the first rotating rod 811 passes through and is rotatably connected to the connecting block 826.

[0039] During the rotation of the thrust head 4, the first rotating rod 811 connected to the thrust head 4, the first spiral blade 812 connected to the first rotating rod 811, the first U-shaped block 821 connected to the first rotating rod 811, the second U-shaped block 822 connected to the first U-shaped block 821, the connecting rod 825 connected to the second U-shaped block 822, the second connecting column 824 connected to the connecting rod 825, the second U-shaped block 822 connected to the second connecting column 824, and the second rotating rod 814 connected to the second U-shaped block 822 all rotate. During the tunneling operation, the broken soil will create space between the thrust head 4 and the jacking pipe 1. The rotating first spiral blade 812 will transport the broken soil from the jacking pipe 1 to the rotating plate 2. At the same time, the rotating second spiral blade 815 will discharge the soil from the rotating plate 2, facilitating soil discharge and reducing the probability of soil accumulation affecting the normal tunneling operation of the device.

[0040] Multiple crushing blocks 10 are fixed to the side wall of the propulsion head 4, which has a frustum-shaped structure. This improves the crushing effect.

[0041] A heat sink 11, which is fixed to the side wall of the top tube 1, is provided through the inner side wall of the mounting groove 6. The heat sink 11 is provided to facilitate the dissipation of heat inside the mounting groove 6.

[0042] A telescopic cover 12 is fixed between the jacking pipe 1 and the propulsion pipe 92. The installation of the telescopic cover 12 reduces the probability that soil entering between the jacking pipe 1 and the propulsion pipe 92 will affect the normal operation of the electro-hydraulic push rod 93.

[0043] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A pipe jacking construction structure, comprising a jacking pipe (1) and a propulsion assembly (9) disposed on the jacking pipe (1), characterized in that: The jacking pipe (1) is rotatably provided with a rotating plate (2) coaxially arranged with the jacking pipe (1) at one end away from the propulsion assembly (9). Multiple transmission columns (3) are fixed on the side wall of the rotating plate (2) away from the jacking pipe (1), which are evenly distributed about the axis of the rotating plate (2). A propulsion head (4) is fixed at one end of the transmission column (3) away from the rotating plate (2). A crushing assembly (5) for crushing the soil is provided on the propulsion head (4). A rotation mechanism (7) for driving the rotating plate (2) to rotate is provided on the jacking pipe (1).

2. The pipe jacking construction structure according to claim 1, characterized in that: The crushing assembly (5) includes a mounting block (51) fixed to the end of the pusher head (4) away from the jacking pipe (1) and a threaded rod (52) threaded through the mounting block (51). The mounting block (51) has an insertion groove (53) at the end away from the pusher head (4). The crushing assembly (5) also includes a crushing blade (54) inserted into the insertion groove (53) and a limiting block (55) fixed to the crushing blade (54). The mounting block (51) has a limiting groove (56) at the end away from the pusher head (4) for the limiting block (55) to pass through and be inserted into. The insertion groove (53) is connected to the limiting groove (56). The threaded rod (52) passes through the crushing blade (54) and the limiting block (55) and is inserted into.

3. The pipe jacking construction structure according to claim 1, characterized in that: The jacking pipe (1) has an installation groove (6) at one end near the propulsion head (4). The rotating plate (2) is rotatably installed in the installation groove (6). The rotating mechanism (7) includes a motor (71) fixed in the installation groove (6), a gear (72) fixedly sleeved on the output end of the motor (71), and a gear ring (73) fixed on the rotating plate (2) and coaxially arranged with the rotating plate (2). The gear ring (73) meshes with the gear (72).

4. The pipe jacking construction structure according to claim 1, characterized in that: The propulsion assembly (9) includes an adjustment block (91) fixed to the end of the jacking pipe (1) away from the propulsion head (4), a propulsion tube (92) movably connected to the adjustment block (91), and an electric hydraulic push rod (93) fixed to the end of the jacking pipe (1) near the propulsion tube (92). The push rod end of the electric hydraulic push rod (93) is rotatably connected to the end of the propulsion tube (92) near the jacking pipe (1). The adjustment block (91) is connected to the jacking pipe (1) and the propulsion tube (92).

5. A pipe jacking construction structure according to claim 4, characterized in that: The jacking pipe (1) and the propulsion pipe (92) are jointly provided with a discharge mechanism (8). The discharge mechanism (8) includes a discharge assembly (81). The discharge assembly (81) includes a first rotating rod (811) fixed on the propulsion head (4) and coaxially arranged with the propulsion head (4), a first spiral blade (812) fixedly sleeved on the first rotating rod (811) and located in the jacking pipe (1), a reinforcing block (813) fixed in the propulsion pipe (92), a second rotating rod (814) that passes through the reinforcing block (813) and is rotatably connected, and a second spiral blade (815) fixedly sleeved on the second rotating rod (814) and located in the propulsion pipe (92). The discharge mechanism (8) also includes a transmission assembly (82) for transmitting power to the second rotating rod (814).

6. A pipe jacking construction structure according to claim 5, characterized in that: The transmission assembly (82) includes a first U-shaped block (821) fixed to the first rotating rod (811), a second U-shaped block (822) fixed to the second rotating rod (814), a first connecting column (823) that passes through the first U-shaped block (821) and is rotatably connected, a second connecting column (824) that passes through the second U-shaped block (822) and is rotatably connected, a connecting rod (825) fixed between the first connecting column (823) and the second connecting column (824), and a connecting block (826) fixed inside the jacking pipe (1). The first rotating rod (811) passes through the connecting block (826) and is rotatably connected.

7. A pipe jacking construction structure according to claim 1, characterized in that: The sidewall of the propulsion head (4) is fixed with multiple fragments (10), and the propulsion head (4) has a frustum-shaped structure.

8. A pipe jacking construction structure according to claim 3, characterized in that: A heat sink (11) that is fixed to the side wall of the top tube (1) is provided through the inner side wall of the mounting groove (6).

9. A pipe jacking construction structure according to claim 4, characterized in that: A telescopic cover (12) is fixed between the jacking pipe (1) and the propulsion pipe (92).

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