Jacking device for pipe jacking construction

Abstract

The invention relates to the technical field of pipe jacking construction, in particular to a jacking device for pipe jacking construction. Comprising a support serving as a support and a screw conveyor located in a pipeline at the front end of the support, and a soil discharging opening communicated with the lower portion of the support is formed in the support and located below a soil outlet of the screw conveyor; a transferring and distributing mechanism is arranged below the support and comprises conveying chains located on the front side and the rear side of the soil discharging opening and a plurality of material rotating plates located between the conveying chains, the material rotating plates are rotationally connected with the conveying chains through rotating shafts, and bottom plates for blocking the material rotating plates are arranged on the lower sides of the conveying chains; a material conveying mechanism and a lifting mechanism are arranged on the two sides of the transferring and distributing mechanism correspondingly. When the material transferring plate is driven by the conveying chain to rotate to the upper portion, the material transferring plate is in a vertical state and filters large soil and stone blocks, when the material transferring plate rotates to the lower portion, the material transferring plate is changed into the horizontal position, soil residues falling from the upper portion are stacked on the horizontal material transferring plate and transferred to the ground, time is saved for pipeline hoisting, the construction time is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking construction, and in particular to a pipe jacking construction jacking device. Background Art

[0002] Pipe jacking is a trenchless underground pipeline laying technology that uses hydraulic or mechanical jacking devices to push prefabricated pipes (such as concrete pipes, steel pipes, etc.) from the starting well into the soil layer section by section, eventually forming a continuous underground pipeline. During the construction process, the formation pressure is balanced, the direction of the pipeline is controlled, and the excavated soil is processed simultaneously to ensure that the pipeline is accurately jacked along the designed axis.

[0003] The jacking construction first excavates the starting well and the receiving well at the starting point and the end point of the pipeline. The pipeline is pushed into the soil layer through the jacking equipment in the starting well and finally comes out of the receiving well. The jacking equipment is usually a hydraulic jack, which transmits the force evenly to the tail of the pipeline through a jacking iron or annular jacking plate, overcomes the friction resistance between the pipeline and the soil layer and the resistance of the front soil, and inserts the pipeline into the soil layer. A spiral device is installed in the pipeline to adjust the rotation speed of the spiral machine. During the jacking process, it rotates to screw the internal soil debris out from the outer outlet, which can not only reduce the jacking friction, but also adjust the soil pressure balance.

[0004] In the prior art, a trough is usually arranged below the support of the jacking equipment, and the soil and debris discharged by the screw machine can fall into the trough, which is then lifted out of the starting well by a lifting mechanism and dumped on the ground or in a dump truck. However, the space in the well is limited, the volume of the trough is usually not very large, and the volume of the pipeline is not small. The amount of soil and debris extracted during the jacking process is large, and the trough needs to be lifted out frequently by a lifting mechanism. When lifting the trough, the pipeline cannot be lifted onto the jacking equipment. Therefore, the soil discharge process occupies a considerable amount of time in the entire construction process, greatly affecting the construction efficiency.

[0005] Chinese invention patent CN115199816A discloses a jacking device for trenchless pipe jacking construction, including a fixed frame and a jacking mechanism, one side of the fixed frame is against the wall of the working well, and a jacking iron seat is provided on one side of the fixed frame; the jacking mechanism includes a cylinder seat, a through hole is provided in the middle of the cylinder seat, a plurality of main jacking cylinders are installed on one side of the cylinder seat, one end of the piston rod of the main jacking cylinder is connected to the jacking seat, a mounting groove is provided on the jacking seat, a bearing is provided in the mounting groove, a jacking head is installed on the inner ring of the bearing, one side of the jacking head is against the pipeline or the annular jacking iron, and a rotating drive mechanism is provided on the other side of the jacking head. Chinese invention patent CN114857354A discloses a pipe jacking machine propulsion device, including a propulsion frame, a support beam assembly, a top ring assembly and a propulsion cylinder, wherein the propulsion frame is the supporting body; the support beam assembly can be detachably connected to different positions of the propulsion frame; the top ring assembly is used to lock the pipeline; one end of the propulsion cylinder is connected to the support beam assembly, and the other end is connected to the top ring assembly; a rear support plate is provided at the end of the propulsion frame away from the jacking direction, and the rear support plate is fixedly connected to the foundation and used to limit the propulsion frame; the end of the support beam assembly away from the propulsion cylinder is connected to the back-pulling mechanism. The pipe jacking machine propulsion device of the present invention does not require additional auxiliary work and equipment, greatly improves the construction efficiency of the propulsion, and saves costs. None of them solves the above-mentioned problem that the need to discharge soil takes up a considerable amount of time in the entire construction process, greatly affecting the construction efficiency. Summary of the invention

[0006] The present invention is to overcome the shortcomings of the above-mentioned prior art and provide a jacking device for pipe jacking construction. When the transfer plate is driven by the conveyor chain to rotate upward, the transfer plate is in a vertical state, which can filter some larger soil and stone blocks, transport them to the side of the lifting mechanism, and lift the large pieces of soil and stone to the ground; when the transfer plate is rotated to the bottom, the transfer plate becomes a horizontal position, and the soil debris falling from above is piled on the horizontal transfer plate, transported to the side of the material transport mechanism, and transferred to the ground; so that the material trough does not need to be lifted out by a lifting mechanism, saving time for lifting the pipeline, reducing construction time, and improving construction efficiency; at the same time, the large stones in the soil debris are separated to avoid the occurrence of blockage.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a jacking device for jacking construction, including a support as a support and a screw machine located in the pipeline at the front end of the support, the support is provided with a lower soil outlet communicated with the bottom of the support, the lower soil outlet is located below the soil outlet of the screw machine; a transfer and distribution mechanism is provided below the support, the transfer and distribution mechanism includes a conveying chain located at the front and rear sides of the lower soil outlet and a plurality of transfer plates located between the conveying chains, the transfer plates are rotatably connected with the conveying chain through a rotating shaft, and a bottom plate for blocking the transfer plates is provided on the lower side of the conveying chain; a transport mechanism and a lifting mechanism for lifting soil debris to the ground are respectively provided on both sides of the transfer and distribution mechanism.

[0008] Preferably, the lower soil opening opened on the support is located on the top running process of the pipeline on the support.

[0009] Preferably, a plurality of mounting blocks are provided on the conveying chain, a concave hole is provided on a side of the mounting block facing the transfer plate, and one end of the rotating shaft is rotatably connected to the concave hole via a bearing.

[0010] Preferably, a fixed bracket is provided below the support at the front and rear sides of the lower soil opening, a limiting ring groove is provided on the fixed bracket, the conveying chain is located in the limiting ring groove, and the bottom plate is connected to the fixed bracket.

[0011] Preferably, a material discharge chute is provided on one side of the bottom plate close to the material transport mechanism, and an arc guide plate is provided on one side of the bottom plate close to the lifting mechanism.

[0012] Preferably, the material transport mechanism includes a first vertical support frame, a transmission roller and a conveyor belt. The upper end of the first vertical support frame is located on the wellhead surface, and the lower end is located in the material discharge trough. The transmission roller is arranged at the upper and lower ends of the first vertical support frame. The conveyor belt is sleeved on the transmission rollers at both ends. A plurality of baffles are provided on the conveyor belt, and a cover shell that fits with the baffles is provided on the upper side of the conveyor belt.

[0013] Preferably, the feed chute includes an inclined plate on one side and an arc-shaped concave bottom at the bottom, the upper end of the inclined plate is flush with the bottom plate, and the lower end of the first vertical support frame is located in the arc-shaped concave bottom.

[0014] Preferably, the lifting mechanism includes a second vertical support frame, a roller and a hopper, the upper end of the second vertical support frame is located on the wellhead ground, and the lower end is located on one side of the transfer and distribution mechanism, the hopper is slidably arranged on the second vertical support frame, the roller is located above the second vertical support frame, and a steel wire rope is provided on the roller, and one end of the steel wire rope is connected to the hopper.

[0015] Preferably, a slide rail is provided on the second vertical support frame, and a sliding block cooperating with the slide rail is provided on the hopper.

[0016] Preferably, the conveyor chain is driven to rotate by a driving mechanism, and the driving mechanism includes a driving sprocket and a driven sprocket respectively located at both ends of the conveyor chain, the outer side of the driving sprocket and the outer side of the driven sprocket are respectively connected to a driving shaft and a driven shaft, and the driving shaft is connected to a driving motor.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are: (1) The soil debris falls from the lower soil outlet onto the transfer and distribution mechanism. When the conveyor chain drives the transfer plate to rotate upward, the transfer plate is in a vertical state under the action of gravity. The multiple vertical transfer plates at the lower soil outlet can filter some larger soil and rocks, transport them to the side of the lifting mechanism, and lift the large pieces of soil and rocks to the ground; when the transfer plate rotates downward, the bottom plate blocks the transfer plate and acts as a limiter, so that the transfer plate becomes horizontal. The soil debris falling from above is piled on the horizontal transfer plate, transported to the side of the transport mechanism, and transferred to the ground; there is no need for a lifting mechanism to lift the trough out, saving time for lifting the pipeline, reducing construction time, and improving construction efficiency; at the same time, the large stones in the soil debris are separated to avoid blockage.

[0018] (2) The lower soil opening on the support is located on the jacking process of the pipeline on the support, so that during the jacking process of the pipeline, the soil falling from the soil outlet of the screw machine can enter the transfer and distribution mechanism from the lower soil opening for further processing.

[0019] (3) One end of the rotating shaft is rotatably connected to the concave hole through a bearing, which not only realizes the rotation of the transfer plate, but also improves the supporting effect and pressure bearing strength, making it easier to transport stones.

[0020] (4) The conveyor chain moves along the limiting ring groove, which not only limits the rotation route, but also supports the conveyor chain, making it easier for the transfer plate to realize material separation and transportation operations.

[0021] (5) The guide arc plate is used to change the transfer plate moving on the conveyor chain from a vertical state to a horizontal state, thereby realizing the transfer of soil debris.

[0022] (6) A material discharge trough is provided on the side of the bottom plate close to the material transport mechanism. The transfer plate quickly pours the soil and debris on it into the material discharge trough, and at the same time moves upward along the conveyor chain to become a vertical state, which can ensure that the previous transfer plate quickly removes the soil and debris on it and is placed in front of the next transfer plate without affecting its operation of pouring materials into the material discharge trough.

[0023] (7) The first vertical support frame is lowered into the starting well, with the lower end located in the material trough. The soil debris in the material trough is transported to the ground through the baffle on the conveyor belt. The transportation efficiency is high, the soil volume is large, and it is easy to operate. The cover ensures that the baffle will not fall off when transporting the soil debris.

[0024] (8) The upper end of the inclined plate is flush with the bottom plate, which is convenient for the soil debris on the transfer plate to slide down and the transfer plate to move. The lower end of the first vertical support frame is located in the arc-shaped concave bottom, which is convenient for the baffle on the conveyor belt to take and transport materials from the discharge chute.

[0025] (9) Large pieces of stone fall into the hopper from one side, and the hopper is pulled from the bottom of the starting shaft to the ground through the wire rope on the drum. The movement of the hopper is more convenient and efficient through the cooperation of the slider and the slide rail. It can be operated while lifting the pipeline, making full use of time and improving construction efficiency.

[0026] (10) The driving sprocket and the driven sprocket are located at both ends of the conveyor chain respectively. The outer side of the driving sprocket and the outer side of the driven sprocket are connected to the driving shaft and the driven shaft respectively, which does not affect the material separation and transportation operations of the intermediate transfer plate, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a side schematic diagram of the present invention; Figure 2 for Figure 1 A schematic cross-sectional view at the support; Figure 3 for Figure 1 Sectional view at AA; Figure 4 for Figure 3 Enlarged view of point C in the middle; Figure 5 for Figure 3 Sectional view at the middle BB; Figure 6 The schematic diagram of the material transport mechanism is shown in FIG. Figure 7 Schematic diagram of the lifting mechanism.

[0028] Description of reference numerals: 1- support, 11- lower soil opening; 2-screw machine, 21-excavation port; 3-fixed bracket, 31-limiting ring groove, 32-bottom plate, 33-guide arc plate, 34-feeding chute, 35-inclined plate, 36-arc-shaped concave bottom; 4-transfer and material distribution mechanism, 41-transmission chain, 42-mounting block, 43-concave hole, 44-rotation shaft, 45-transfer plate; 5-driving mechanism, 51-driving sprocket, 52-driving shaft, 53-driven sprocket, 54-driven shaft, 55-driving motor; 6- material transport mechanism, 61- first vertical support frame, 62- transmission roller, 63- conveyor belt, 64- baffle, 65- cover shell; 7-lifting mechanism, 71-second vertical support frame, 72-drum, 73-wire rope, 74-hopper, 75-slide rail, 76-slider. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example The following is combined with Figure 1-Figure 7 The present invention is further described as follows: a jacking device for pipe jacking construction, such as Figure 1-Figure 3 As shown, it includes a support 1 and a screw machine 2 located in a pipe at the front end of the support 1. The support 1 is provided with a lower soil opening 11 which is communicated with the lower part of the support 1, and the lower soil opening 11 is located below the soil outlet 21 of the screw machine 2; a transfer and material distribution mechanism 4 is provided below the support 1, and the transfer and material distribution mechanism 4 includes a conveying chain 41 located at the front and rear sides of the lower soil opening 11 and a plurality of material transfer plates 45 located between the conveying chains 41, and the material transfer plates 45 are rotatably connected to the conveying chain 41 through a rotating shaft 44, and a bottom plate 32 for blocking the material transfer plates 45 is provided at the lower side of the conveying chain 41; a material transport mechanism 6 and a lifting mechanism 7 for lifting soil debris to the ground are respectively provided on both sides of the transfer and material distribution mechanism 4.

[0031] The device is placed in the starting well, the pipeline is hoisted onto the support 1, and the jacking hydraulic cylinder and other equipment begin to jack the pipeline, and the screw machine 2 is controlled to rotate, and the soil residue falls from the soil outlet 21 to the transfer and distribution mechanism 4 below the lower soil outlet 11; the multiple transfer plates 45 are driven by the conveyor chain 41 and move along the direction of the conveyor chain 41. When the transfer plates 45 are rotated to the upper side, because they are rotatably connected with the conveyor chain 41, the transfer plates 45 are in a vertical state under the action of gravity. The vertical multiple transfer plates 45 can filter some larger The soil and rocks are transported to the side of the lifting mechanism 7, and the large pieces of soil and rocks are lifted to the ground; when the transfer plate 45 is rotated downward, the bottom plate 32 blocks the transfer plate 45 and plays a limiting role, so that the transfer plate 45 becomes a horizontal position, and the soil and rocks falling from above are piled on the horizontal transfer plate 45, transported to the side of the material transport mechanism 6, and transferred to the ground; the lifting mechanism is not used to lift the trough out, saving time for lifting the pipeline, reducing construction time, and improving construction efficiency; at the same time, the large stones in the soil and rocks are separated to avoid jamming.

[0032] like Figure 1 As shown, the lower soil opening 11 opened on the support 1 is located on the jacking process of the pipeline on the support 1, so that during the jacking process of the pipeline, the soil falling from the soil outlet 21 of the screw machine 2 can enter the transfer and distribution mechanism 4 from the lower soil opening 11 for further processing.

[0033] like Figure 3 and Figure 4 As shown, a plurality of mounting blocks 42 are provided on the conveyor chain 41, and a concave hole 43 is provided on one side of the mounting block 42 facing the transfer plate 45, and one end of the rotating shaft 44 is rotatably connected to the concave hole 43 through a bearing. While realizing the rotation of the transfer plate 45, the supporting effect and pressure bearing strength are improved, and the stones are conveniently transported.

[0034] like Figure 2 and Figure 3As shown, a fixed bracket 3 is provided below the support 1 at the front and rear sides of the lower soil opening 11, a limiting ring groove 31 is provided on the fixed bracket 3, a conveying chain 41 is located in the limiting ring groove 31, and a bottom plate 32 is connected to the fixed bracket 3. The conveying chain 41 moves along the limiting ring groove 31, which can not only limit the rotation route, but also support the conveying chain 41, thereby facilitating the material transfer plate 45 to realize material separation and material transportation operations.

[0035] like Figure 5 As shown, a guide arc plate 33 is provided on the side of the bottom plate 32 close to the lifting mechanism 7, which is used to change the transfer plate 45 moving on the conveying chain 41 from a vertical state to a horizontal state, thereby realizing the transfer of soil debris; a discharge trough 34 is provided on the side of the bottom plate 32 close to the material transporting mechanism 6, and the transfer plate 45 moves into the discharge trough 34, and quickly pours the soil debris on it into the discharge trough 34, and at the same time moves upward along the conveying chain 41 to become a vertical state, which can ensure that the previous transfer plate 45 quickly clears the soil debris on it and is placed in front of the next transfer plate 45 without affecting its pouring operation into the discharge trough 34.

[0036] like Figure 5 and Figure 6 As shown, the material transport mechanism 6 includes a first vertical support frame 61, a transmission roller 62 and a conveyor belt 63. The upper end of the first vertical support frame 61 is located on the wellhead surface, and the lower end is located in the feed chute 34. The transmission roller 62 is arranged at the upper and lower ends of the first vertical support frame 61. The conveyor belt 63 is sleeved on the transmission rollers 62 at both ends. A plurality of baffles 64 are arranged on the conveyor belt 63. A cover shell 65 is provided on the upper side of the conveyor belt 63 and is in contact with the baffle 64.

[0037] When in use, the first vertical support frame 61 is lowered into the starting well, with the lower end located in the discharge chute 34, and the soil residue in the discharge chute 34 is transported to the ground through the baffle 64 on the conveyor belt 63. The transportation efficiency is high, the soil volume is large, and it is easy to operate. The cover shell 65 ensures that the baffle 64 will not fall off when transporting the soil residue.

[0038] like Figure 6 As shown, the feed chute 34 includes an inclined plate 35 located on one side and an arc-shaped concave bottom 36 located at the bottom. The upper end of the inclined plate 35 is flush with the bottom plate 32, which is convenient for the soil debris on the transfer plate 45 to slide off and the transfer plate 45 to move. The lower end of the first vertical support frame 61 is located in the arc-shaped concave bottom 36, which is convenient for the baffle 64 on the conveyor belt 63 to take and transport materials from the feed chute 34.

[0039] like Figure 5 and Figure 7As shown, the lifting mechanism 7 includes a second vertical support frame 71, a roller 72 and a hopper 74. The upper end of the second vertical support frame 71 is located on the wellhead surface, and the lower end is located on one side of the transfer and material distribution mechanism 4. The hopper 74 is slidably arranged on the second vertical support frame 71. The roller 72 is located above the second vertical support frame 71, and a steel wire rope 73 is arranged on the roller 72. One end of the steel wire rope 73 is connected to the hopper 74. A slide rail 75 is arranged on the second vertical support frame 71, and a slider 76 cooperating with the slide rail 75 is arranged on the hopper 74.

[0040] Large rocks fall into the hopper 74 from one side, and the hopper 74 is pulled from the bottom of the starting well to the ground through the wire rope 73 on the roller 72. The movement of the hopper 74 is more convenient and efficient through the cooperation of the slider 76 and the slide rail 75. It can be operated when lifting the pipeline, making full use of time and improving construction efficiency.

[0041] like Figure 1 , Figure 3 and Figure 5 As shown, the conveyor chain 41 is driven to rotate by a driving mechanism 5, and the driving mechanism 5 includes a driving sprocket 51 and a driven sprocket 53 respectively located at both ends of the conveyor chain 41. The outer side of the driving sprocket 51 and the outer side of the driven sprocket 53 are respectively connected to a driving shaft 52 and a driven shaft 54, and the driving shaft 52 is connected to a driving motor 55, which does not affect the material separation and transportation operations of the intermediate transfer plate 45, thereby improving the use effect.

[0042] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A jacking device for pipe jacking construction, comprising a support (1) as a support and a screw machine (2) located in the pipe at the front end of the support (1), characterized in that: The support (1) is provided with a lower soil opening (11) which is in communication with the lower part of the support (1), and the lower soil opening (11) is located below the soil outlet (21) of the screw machine (2); A transfer and distribution mechanism (4) is provided below the support (1), the transfer and distribution mechanism (4) comprising a conveyor chain (41) located at both sides of the lower soil opening (11) and a plurality of transfer plates (45) located between the conveyor chains (41), the transfer plates (45) being rotatably connected to the conveyor chain (41) via a rotating shaft (44), and a bottom plate (32) for blocking the transfer plates (45) is provided on the lower side of the conveyor chain (41); A material transport mechanism (6) and a lifting mechanism (7) for lifting soil residue to the ground are respectively provided on both sides of the transfer and material distribution mechanism (4).

2. A jacking device for pipe jacking construction according to claim 1, characterized in that: The lower soil opening (11) provided on the support (1) is located on the top running process of the pipeline on the support (1).

3. A jacking device for pipe jacking construction according to claim 1, characterized in that: The conveying chain (41) is provided with a plurality of mounting blocks (42), a concave hole (43) is provided on one side of the mounting block (42) facing the transfer plate (45), and one end of the rotating shaft (44) is rotatably connected to the concave hole (43) via a bearing.

4. A jacking device for pipe jacking construction according to claim 1, characterized in that: A fixed bracket (3) is provided below the support (1) at the front and rear sides of the lower soil opening (11), the fixed bracket (3) is provided with a limiting ring groove (31), the conveying chain (41) is located in the limiting ring groove (31), and the bottom plate (32) is connected to the fixed bracket (3).

5. A jacking device for pipe jacking construction according to claim 4, characterized in that: A material discharge chute (34) is provided on one side of the bottom plate (32) close to the material transport mechanism (6), and an arc guide plate (33) is provided on one side of the bottom plate (32) close to the lifting mechanism (7).

6. A jacking device for pipe jacking construction according to claim 5, characterized in that: The material transport mechanism (6) comprises a first vertical support frame (61), a transmission roller (62) and a conveyor belt (63); the upper end of the first vertical support frame (61) is located on the wellhead surface, and the lower end is located in the material discharge chute (34); the transmission roller (62) is arranged at the upper and lower ends of the first vertical support frame (61); the conveyor belt (63) is sleeved on the transmission rollers (62) at both ends; a plurality of baffles (64) are arranged on the conveyor belt (63); and a cover shell (65) is arranged on the upper side of the conveyor belt (63) and is in contact with the baffles (64).

7. A jacking device for pipe jacking construction according to claim 6, characterized in that: The material discharge chute (34) comprises an inclined plate (35) located on one side and an arc-shaped concave bottom (36) located at the bottom, the upper end of the inclined plate (35) is flush with the bottom plate (32), and the lower end of the first vertical support frame (61) is located in the arc-shaped concave bottom (36).

8. A jacking device for pipe jacking construction according to claim 5, characterized in that: The lifting mechanism (7) comprises a second vertical support frame (71), a roller (72) and a hopper (74); the upper end of the second vertical support frame (71) is located on the wellhead surface, and the lower end is located on one side of the transfer and material distribution mechanism (4); the hopper (74) is slidably arranged on the second vertical support frame (71); the roller (72) is located above the second vertical support frame (71), and a steel wire rope (73) is arranged on the roller (72); one end of the steel wire rope (73) is connected to the hopper (74).

9. A jacking device for pipe jacking construction according to claim 8, characterized in that: The second vertical support frame (71) is provided with a slide rail (75), and the hopper (74) is provided with a slide block (76) that cooperates with the slide rail (75).

10. A jacking device for pipe jacking construction according to claim 1, characterized in that: The conveyor chain (41) is driven to rotate by a driving mechanism (5), wherein the driving mechanism (5) comprises a driving sprocket (51) and a driven sprocket (53) respectively located at two ends of the conveyor chain (41), the outer side of the driving sprocket (51) and the outer side of the driven sprocket (53) are respectively connected to a driving shaft (52) and a driven shaft (54), and the driving shaft (52) is connected to a driving motor (55).

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