Pipeline positioning assembly and sewage pipe network pipe jacking construction device and construction method

Abstract

The invention discloses a pipeline positioning assembly and a sewage pipe network pipe jacking construction device and method, and belongs to the technical field of pipe network construction equipment. According to the device, a pushing mechanism arranged in a pipe jacking well is matched with a supporting plate, a hydraulic cylinder is adopted to drive a rubber plate to push a pipe fitting, and a transmitting end and a receiving end of a laser locator are configured to monitor a jacking track in real time. In order to solve the problem of pipe deviation, a supporting sliding plate driven by a threaded rod is arranged on a supporting plate, a first rolling roller and a second rolling roller which are provided with arc-shaped grooves are installed on the top of the supporting plate, and the positions of the rolling rollers are adjusted and controlled through a motor to achieve jacking direction correction. The moving track can be detected in real time in the process that the pushing mechanism pushes the pipe fitting, adjustment of the advancing direction is completed through cooperation of the multiple supporting structures when the track deviates, in addition, when pushing of the pipe fitting is increased, separation and insertion of a connector insertion pipe and a connector sleeve can be automatically completed, and discharging of slurry is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe support, and in particular to a pipeline positioning component and a sewage pipe network jacking construction device and a construction method. Background Art

[0002] Pipe jacking is a trenchless construction method. It is a pipeline burial construction technology that requires no excavation or only partial excavation. The jacking operation is carried out in the working shaft. With the help of the thrust generated by the main jacking cylinder, the frictional resistance between the pipeline and the surrounding soil is overcome and the pipeline is pushed into the formation along the designed axis. After a single section of pipeline is jacked into place, the next section of pipeline is connected through a dedicated interface, forming a continuous jacking operation. Its technical principle is to use the propulsion force provided by the main jacking cylinder, relay room, etc. to drive the tool pipe or tunnel boring machine through the soil layer. The pipeline is connected section by section through a socket-type joint and is buried synchronously between the two working shafts as the tool pipe is pushed forward.

[0003] Existing technology usually adopts the coordinated operation of a pipe jacking machine and a hydraulic system. The pipe jacking machine cuts the soil in front through the cutter head and simultaneously injects mud to form a mud-water mixture, which is transported to the ground mud-water separation system through the slurry discharge pipeline to achieve continuous operation.

[0004] However, the existing technology has the following room for improvement: 1. The disassembly and assembly of the slurry discharge pipeline must be completed manually using professional tools such as pipe clamps and chain clamps. It is recommended to add hydraulic quick connectors or automatic docking devices to improve work efficiency; 2. The initial positioning deviation of the pipe fitting or the loss of posture control during the jacking process will cause the axis of the formed pipe to deviate from the designed trajectory. The real-time monitoring of the laser guidance system should be strengthened, and an adjustable wedge-shaped correction device should be configured to ensure the jacking accuracy.

[0005] In response to the above problems, the present invention document proposes a pipeline positioning component and a sewage pipe network jacking construction device and construction method. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the existing jacking machine's slurry discharge pipe and the external slurry discharge pipe, which is frequently assembled and disassembled, which is cumbersome, and the irregular placement of pipe fittings affects the laying of pipelines, and to propose a pipeline positioning component and a sewage pipe network jacking construction device and construction method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A pipeline positioning assembly includes a base plate and a support plate fixed to the bottom of a jacking well, and further includes: The pushing mechanism is fixed to the top of the base plate by bolts and consists of multiple hydraulic cylinders. The output end of each hydraulic cylinder is provided with a rubber plate with a limit block; The detection structure includes a laser locator transmitting end provided on the base plate and a laser locator receiving end provided on the inner wall of the jacking machine, wherein the laser locator receiving end is fixed to the inner wall of the jacking machine through a mounting bracket; The guide structure includes at least one support assembly provided on the support plate, the support assembly including a support slide driven by a threaded rod, the support slide being provided with a first rolling roller and two second rolling rollers with arc-shaped grooves, the arc-shaped grooves forming a rolling fit with the outer wall of the jacking machine or the pipe fitting; Among them, the laser locator receiving end receives the laser beam of the laser locator transmitting end in real time to detect the jacking trajectory. When an offset is detected, the threaded rod drives the support slide to drive the first rolling roller and the second rolling roller to adjust their positions to correct the jacking direction.

[0008] As a further improvement of the above technical solution: The support assembly also includes: a movable groove provided on the top of the support plate, and the threaded rod is rotatably provided in the movable groove through a bearing; a driving motor, which is fixed to the side of the support plate through a frame, and its output shaft is connected to the end of the threaded rod through a coupling; wherein, the bottom of the support slide is provided with a threaded hole that cooperates with the threaded rod, and the top is respectively equipped with a first rolling roller and a second rolling roller through a first frame and two second frames.

[0009] The central axis of the first rolling roller and the central axes of the two second rolling rollers form an isosceles triangle, and the installation height of the first rolling roller is higher than that of the second rolling rollers.

[0010] The limit blocks are arc-shaped plate structures, the curvature of the inner arc surface of which matches the inner diameter of the pipe, and the limit blocks of each hydraulic cylinder are evenly distributed along the circumference.

[0011] A sewage pipe jacking construction device includes the above-mentioned pipe positioning assembly, and further includes: a movable frame slidably arranged on the inner wall of the bottom of the pipe, and a joint insert is provided therein; a joint sleeve is connected to the output shaft of the hydraulic cylinder of the jacking mechanism through the connecting frame; a plug-in closing structure includes a fixing ring and a closing plate arranged in the joint sleeve, the closing plate forms an elastic sealing cooperation with the fixing ring through a sliding rod and a spring, the bottom of the joint sleeve is fixedly connected to a collecting cylinder, and the bottom end of the collecting cylinder is fixedly connected to a slurry discharge hose; When the hydraulic cylinder pushes the jacking machine, the joint insert is inserted into the joint sleeve and drives the closing plate to open, thereby forming a mud discharge channel.

[0012] As a further improvement of the above technical solution: The plug-in closing structure also includes: multiple pins that slide sealingly through the wall of the joint plug-in tube, and whose inner ends are provided with round heads that cooperate with the trapezoidal grooves of the closing plate; a retaining ring that is fixed to the inner wall of the joint sleeve, and whose inner hole diameter cooperates with the outer diameter of the joint plug-in tube; wherein, the plug-in end of the joint sleeve is provided with a tapered groove that cooperates with the inclined surface of the outer end of the pin, and the outer wall of the joint plug-in tube is provided with a rubber ring, and the outer diameter of the rubber ring is 0.5-1mm larger than the inner diameter of the joint sleeve to form an interference fit.

[0013] It also includes: a load-bearing block, which is fixed to a side of the mobile frame away from the joint sleeve, and a storage groove with a lifting plate is provided at the bottom of the load-bearing block.

[0014] It also includes: a screw rod, the thread of which passes through the load-bearing block and the lower end of which is hinged to the lifting plate; a plurality of movable wheels installed on the bottom of the lifting plate; wherein the screw rod can drive the movable wheels to move downward to contact the inner wall of the pipe or move upward to be stored in the storage groove.

[0015] In this application, the construction method of the sewage pipe network jacking construction device includes the following steps: S1. Use a crane to place the jacking machine on multiple first rolling rollers. The second rolling rollers on both sides are positioned so that their arc-shaped grooves fit the outer wall of the jacking machine, ensuring stable movement. The hydraulic cylinder output shaft pushes the jacking machine forward via a rubber plate. Multiple sets of limit blocks cooperate to limit the position. The jacking mechanism propels the jacking machine forward as a whole, completing the initial jacking operation. During the pushing process, the laser positioning device's receiving and transmitting ends cooperate to monitor the pusher's trajectory. When the track deviates, the drive motor drives the threaded rod to rotate, driving the first and second rolling rollers to adjust their positions and correct the pusher's direction. Subsequent pipe fittings are also adjusted in this way. S3. Before jacking, rotate the screw to lower the lifting plate. The moving wheel drives the moving frame, the load-bearing block, and the joint insert to the vicinity of the jacking machine port. Rotate the screw in the opposite direction to retract the moving wheel, so that the moving frame is stably placed in the jacking machine. When the hydraulic cylinder output shaft extends to push the jacking machine, the joint insert is inserted into the joint sleeve. The inclined surface cooperates with the conical groove to allow the pin rod to extend into the trapezoidal groove. The round head drives the closing plate to move left and separate from the fixed ring. The jacking mud is discharged through the joint insert, joint sleeve, collection tube, and slurry discharge hose. S4. When additional pipe fittings need to be installed, the hydraulic cylinder output shaft contracts, driving the joint sleeve to move backward, the joint insert is detached, and the closing plate is reset under the action of the spring, fitting with the fixed ring to prevent mud leakage; then the pipe fitting is hoisted between the first and second rolling rollers, and the pushing mechanism pushes the pipe fitting forward. Before pushing, the movable frame is moved into the pipe fitting, and the joint insert is inserted into the joint sleeve during pushing to continue mud discharge.

[0016] Beneficial effect: In the present invention, a threaded rod is rotatably connected in the movable groove, a supporting slide which is threadedly connected to the threaded rod is slidably connected in the movable groove, a first frame body and two second frames are fixedly installed on the top of the supporting slide body by bolts, the first rolling roller is rotatably arranged in the first frame body, and the two second rolling rollers are rotatably arranged in the corresponding second frame bodies; the threaded rod is driven to rotate by a driving motor, and the threaded rod drives the first rolling roller and the second rolling roller thereon to adjust the position, thereby adjusting the forward direction of the jacking machine. Similarly, the subsequent pipe fittings can be adjusted in the same way at a later time; In the present invention, one end of each of the sliding rods is fixedly connected to the closing plate, a plurality of pins are sealably and slidably penetrated in the joint insert, and a plurality of trapezoidal grooves are provided on the outer wall of the closing plate; when the output shaft of the hydraulic cylinder extends and pushes the jacking machine, one end of the joint insert is inserted into the joint sleeve to enable the pin to extend into the trapezoidal groove, the pin is inserted into the trapezoidal groove and drives the closing plate to move, and the closing plate is separated from the fixing ring, and then the mud generated during the jacking of the jacking machine in the later stage is injected into the joint sleeve through the joint insert and discharged to the outside through the collecting tube and the slurry discharge hose, thereby completing the discharge of the mud; In the present invention, the bottom of the joint sleeve is fixedly connected to a collecting tube, and the bottom end of the collecting tube is fixedly connected to a slurry discharge hose; after the joint tube is detached from the joint sleeve, the remaining slurry in the joint sleeve can be gathered in the collecting tube, which is not only convenient for being discharged to the outside by the slurry discharge hose, but also can prevent the slurry from leaking from the joint sleeve, and prevent the slurry from contaminating the first rolling roller and the second rolling roller, so that the first rolling roller and the second rolling roller can stably complete the transportation of the pipe fittings.

[0017] In the present invention, the moving trajectory can be detected in real time during the process of the pushing mechanism pushing the pipe, and the forward direction can be adjusted through the cooperation of multiple supporting structures when the trajectory deviates. In addition, when the pipe is pushed, the joint insertion and joint sleeve separation and insertion can be automatically completed, which is convenient for the discharge of mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a three-dimensional cross-sectional structure of a pipe jacking well of a pipeline positioning assembly provided by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the pipeline positioning assembly provided by the present invention; Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the support slide and support plate of the pipeline positioning assembly provided by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the first rolling roller and the second rolling roller of the pipeline positioning assembly provided by the present invention; Figure 5 This is a schematic diagram of a three-dimensional exploded cross-section structure of the pushing mechanism and pipe fittings of the pipeline positioning assembly provided by the present invention; Figure 6 This is a schematic diagram of the three-dimensional explosion structure of the laser locator receiving end and the laser locator transmitting end of the pipeline positioning assembly provided by the present invention; Figure 7 This is a three-dimensional structural diagram of the mobile frame, joint sleeve and connecting frame of the sewage pipe network jacking construction device provided by the present invention; Figure 8 This is a partial three-dimensional cross-sectional structural diagram of the joint sleeve and joint insert of the sewage pipe network jacking construction device provided by the present invention; Figure 9 This is a schematic diagram of a three-dimensional exploded cross-section structure of a joint sleeve, a closing plate, and a joint insert of the sewage pipe network jacking construction device provided by the present invention; Figure 10 for Figure 9 A in the middle is an enlarged structural diagram; Figure 11 This is a schematic cross-sectional structural diagram of the load-bearing block and the movable frame of the sewage pipe network jacking construction device provided by the present invention.

[0019] In the figure: 1, pipe jacking shaft; 2, jacking mechanism; 3, jacking machine; 4, pipe fitting; 5, support plate; 6, movable groove; 7, support slide; 8, threaded rod; 9, drive motor; 10, first frame; 11, first rolling roller; 12, second frame; 13, second rolling roller; 14, arc groove; 15, base plate; 16, pressure plate; 17, mounting plate; 18, laser locator transmitter; 19, mounting frame; 20, laser locator receiver; 21, rubber plate; 22, limit block; 23, Movable frame; 24. Load-bearing block; 25. Connector tube; 26. Fixing ring; 27. Closing plate; 28. Sliding rod; 29. ​​Spring; 30. Pin rod; 31. Trapezoidal groove; 32. Limiting ring; 33. Round head; 34. Inclined surface; 35. Connector sleeve; 36. Collecting barrel; 37. Discharge hose; 38. Conical groove; 39. Retaining ring; 40. Rubber ring; 41. Connecting frame; 42. Storage box; 43. Lifting plate; 44. Moving wheel; 45. Screw rod; 46. Rubber pad; 47. Storage groove. DETAILED DESCRIPTION

[0020] 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 the embodiments.

[0021] Example 1: Reference Figures 1-11 A pipeline positioning assembly includes a base plate 15 and a support plate 5 fixed to the bottom of a jacking well 1, and further includes: The pushing mechanism 2 is fixed to the top of the base plate 15 by bolts and consists of multiple hydraulic cylinders. The output end of each hydraulic cylinder is provided with a rubber plate 21 with a limit block 22; The detection structure includes a laser positioning device transmitting end 18 provided on the base plate 15 and a laser positioning device receiving end 20 provided on the inner wall of the jacking machine 3. The laser positioning device receiving end 20 is fixed to the inner wall of the jacking machine 3 through a mounting bracket 19. The guide structure includes at least one support assembly provided on the support plate 5, wherein the support assembly includes a support slide 7 driven by a threaded rod 8, and the support slide 7 is provided with a first rolling roller 11 with an arc-shaped groove 14 and two second rolling rollers 13. The arc-shaped groove 14 forms a rolling fit with the outer wall of the jacking machine 3 or the pipe 4; Among them, the laser locator receiving end 20 receives the laser beam of the laser locator transmitting end 18 in real time to detect the jacking trajectory. When an offset is detected, the threaded rod 8 drives the supporting slide 7 to drive the first rolling roller 11 and the second rolling roller 13 to adjust their positions to correct the jacking direction.

[0022] During specific implementation, the base plate 15 is fixed to the inner wall of the bottom of the jacking shaft 1 by bolts. Then, at a position on one side of the base plate 15, the support plate 5 is fixed to the inner wall of the bottom of the jacking shaft 1 by bolts. The jacking mechanism 2 is placed on the top of the base plate 15 and is tightly fixed to the base plate 15 with bolts. The top of the base plate 15 is fixed with a pressure plate 16 by bolts, and the pressure plate 16 is also fixedly connected to the inner wall of one side of the jacking shaft 1 by bolts. One end of the jacking mechanism 2 is fixedly connected to the pressure plate 16 by bolts to form a stable support structure. When installing the pressure plate 16, it is necessary to ensure that it fits tightly with the base plate 15 and the inner wall of the jacking shaft 1, and to make appropriate adjustments to ensure a firm connection. At the same time, it is necessary to check the tightness of the bolts to ensure that the pressure plate 16 can withstand the reaction force exerted on the jacking mechanism 2.

[0023] Through the dispersing effect of the pressure plate 16 , the reaction force exerted on the jacking mechanism 2 is dispersed to the inner wall of the jacking shaft 1 , thereby avoiding direct damage to the jacking shaft 1 .

[0024] Specifically, when the output shaft of the jacking mechanism 2 is extended to perform the jacking operation, the pressure plate 16 can disperse the reaction force exerted on the jacking mechanism 2 to the inner wall of the jacking well 1, thereby preventing the jacking mechanism 2 from directly transmitting the force to the jacking well 1, thereby protecting the structural safety of the jacking well 1.

[0025] Reference Figure 5The pushing mechanism 2 consists of multiple hydraulic cylinders. A rubber plate 21 is attached to one end of each hydraulic cylinder's output shaft, which is used to push the pipe 4. When the pushing mechanism 2 is activated, the multiple hydraulic cylinders operate simultaneously, and the rubber plate 21 at one end of their output shafts pushes the pipe 4 forward. The rubber plate 21 increases friction between the rubber plate 21 and the pipe 4, ensuring a stable and reliable pushing process.

[0026] Reference Figure 5 Each of the multiple rubber sheets 21 is secured to a limit block 22 by welding or bolts on one side. The shape and size of the limit block 22 are designed based on the inner and outer diameters of the jacking machine 3 and the pipe fitting 4, ensuring that the limit block 22 fits snugly against the inner wall of the pipe fitting 4. When installing the rubber sheets 21 and limit blocks 22, ensure that the limit blocks 22 are aligned with the inner wall of the adjacent pipe fitting 4 and make appropriate adjustments to ensure a tight fit. The elasticity and wear resistance of the rubber sheets 21 must also be checked to ensure they can withstand long-term use.

[0027] Specifically, the sides of the plurality of limit blocks 22 that are away from each other are all in contact with the inner walls of the adjacent pipe fittings 4, so as to position the jacking machine 3 and the pipe fittings 4 and prevent them from shaking or deflecting during the pipe jacking process.

[0028] Reference Figure 5 and Figure 6 , on the top of the base plate 15, fix the mounting plate 17 to the side of the jacking mechanism 2 close to the jacking machine 3 by bolts. According to the construction accuracy requirements, on the side of the mounting plate 17 close to the jacking machine 3, use bolts or other fixing methods to evenly fix multiple laser locator transmitting ends 18 to ensure the accuracy of the laser emission direction. On the inner wall of the jacking machine 3, according to the layout of the laser locator transmitting ends 18, fix multiple mounting brackets 19 in appropriate positions by bolts or other means. Fix the laser locator receiving end 20 to the side of the mounting bracket 19 close to the jacking mechanism 2 to ensure that it can accurately receive the laser beam emitted by the laser locator transmitting end 18.

[0029] Specifically, during the pipe jacking operation, the laser locator transmitter 18 continuously generates and emits a laser beam. The laser locator receiver 20 receives the laser beam in real time and transmits the received signal to the control system. Based on the received signal, the control system determines whether the pipeline has deviated from the predetermined position. If so, it promptly issues an alarm and takes appropriate adjustment measures.

[0030] In order to guide the forward direction of the pipe 4 during the process of pushing the pipe 4, a positioning guide structure is provided on the support plate 5, and the guide structure is composed of a plurality of support structures.

[0031] Reference Figure 5 and Figure 6The support structure includes a movable groove 6 precisely opened at the top of the support plate 5 according to the size and construction requirements of the pipe 4, ensuring that the size and position of the movable groove 6 can meet the sliding requirements of the support slide 7. In the movable groove 6, a threaded rod 8 is installed through a rotating connection method such as a bearing. On one side of the support plate 5, a frame is used to firmly fix the drive motor 9, and the output shaft of the drive motor 9 is fixedly connected to one end of the threaded rod 8 through a coupling to ensure that the drive motor 9 can stably drive the threaded rod 8 to rotate. The support slide 7 is placed in the movable groove 6 so that it is threadedly connected to the threaded rod 8. At the same time, it is ensured that the support slide 7 can slide smoothly in the movable groove 6 without any jamming. At the top of the support slide 7, the first frame 10 and the two second frames 12 are firmly fixed by bolts. The first rolling roller 11 is rotatably set in the first frame 10, and the two second frames 12 are respectively located on both sides of the first frame 10. The two second rolling rollers 13 are respectively rotatably set in the corresponding second frames 12 to ensure that the rolling rollers can rotate freely.

[0032] Specifically, during the pipe jacking operation, when the advancing direction of the pipe 4 needs to be adjusted, the drive motor 9 is activated. The drive motor 9 rotates the threaded rod 8 via a coupling, which in turn drives the support slide 7 to move within the movable groove 6. The support slide 7 then drives the first rolling roller 11 and the second rolling roller 13 to move, thereby adjusting the direction of the pipe 4. The coordination of multiple support structures enables precise adjustment of the advancing direction of the pipe 4, ensuring that the pipe 4 is accurately pushed along the predetermined route.

[0033] Reference Figure 4 The outer walls of the first and second rolling rollers 11 and 13 are both machined with arcuate grooves 14. The shape of the arcuate grooves 14 matches the outer walls of the jacking machine 3 and the pipe fitting 4, ensuring a tight fit between the two. When installing the first and second rolling rollers 11 and 13, ensure that their arcuate grooves 14 are aligned with the outer walls of the jacking machine 3 and the pipe fitting 4, and make appropriate adjustments to ensure a tight fit.

[0034] Specifically, during the advancement of the jacking machine 3 and the pipe fitting 4, the arc-shaped groove 14 can limit their position, effectively preventing the jacking machine 3 and the pipe fitting 4 from deflecting, and improving the stability and accuracy of the pipe jacking operation.

[0035] The limiting effect of the arc-shaped groove 14 and the limiting block 22 effectively prevents the jacking machine 3 and the pipe fitting 4 from deflecting or shaking during the pipe jacking process.

[0036] Reference Figure 7The sewage pipe jacking construction device includes the above-mentioned positioning assembly and a movable frame 23. The movable frame 23 is slidably fitted on the bottom inner wall of the pipe 4. A joint insert 25 is fixedly passed through the movable frame 23. One end of the joint insert 25 is connected to the slurry discharge pipe in the jacking machine 3. A joint sleeve 35 is provided on one side of the jacking mechanism 2.

[0037] Reference Figure 7 and Figure 8 The bottom of the joint sleeve 35 is fixedly connected to a collecting tube 36, and the bottom end of the collecting tube 36 is fixedly connected to a slurry discharge hose 37. The slurry discharge hose 37 is connected to an external mud pump. The collecting tube 36 and the slurry discharge hose 37 are used together to discharge the mud injected into the joint sleeve 35 to the outside.

[0038] Reference Figure 7-10 In order to automatically complete the docking of the joint insert 25 and the joint sleeve 35 to facilitate the subsequent discharge of mud, a plug-in closed structure is provided between the joint insert 25 and the joint sleeve 35. The plug-in closed structure includes a fixing ring 26 fixed in the joint insert 25 and a closing plate 27 sliding in the joint insert 25.

[0039] Reference Figure 7-10 The plug-in closure structure also includes a plurality of sliding rods 28 that slide through the fixed ring 26. One end of each of the sliding rods 28 is fixedly connected to the closure plate 27. The closure plate 27 is located on the side of the fixed ring 26 away from the pushing mechanism 2. A plurality of springs 29 are installed on the side of the fixed ring 26 away from the closure plate 27 through a spring seat. The plurality of springs 29 are respectively sleeved on the outer wall of the corresponding sliding rods 28. One end of each of the plurality of springs 29 is fixedly connected to the outer wall of the corresponding sliding rod 28, and is used to reset the closure plate 27 to fit into the fixed ring 26, completing the closure of the joint insert 25. A plurality of pins 30 are sealingly and slidably passed through the joint insert 25. The outer wall of the closure plate 27 is provided with a plurality of trapezoidal grooves 31. The ends of the plurality of pins 30 that are close to each other extend into adjacent trapezoidal grooves 31 and cooperate with the trapezoidal grooves 31 to drive the closure plate 27 to move away from the fixed ring 26, thereby facilitating mud discharge.

[0040] Reference Figure 10 The outer wall fixing sleeve of the pin rod 30 is provided with a limiting ring 32, which is used to limit the pin rod 30 to prevent it from detaching from the joint tube 25. A round head 33 is provided at the end of the pin rod 30 close to the closing plate 27. The pin rod 30 cooperates with the trapezoidal groove 31 through the round head 33 to facilitate driving the closing plate 27 to move. The round head 33 can also be a conical head with a cone angle range of 15°-45°, forming a linear contact with the trapezoidal groove 31, which is suitable for quick plugging and unplugging. The round head 33 can also be a wedge-shaped head with a flat front end design (thickness 2-8mm) to enhance the driving torque on the closing plate 27, which is suitable for high viscosity mud environment.

[0041] Specifically, in the initial state, the spring 29 is in a compressed state, and the closing plate 27 fits tightly against the fixing ring 26, sealing the joint tube 25 to prevent mud leakage. When the hydraulic cylinder output shaft extends and pushes the jacking machine 3, one end of the joint tube 25 is inserted into the joint sleeve 35, and during the insertion process, the inclined surface 34 of the pin rod 30 cooperates with the tapered groove 38 in the joint sleeve 35, enabling the pin rod 30 to extend into the trapezoidal groove 31. The round head 33 at the top of the pin rod 30 cooperates with the trapezoidal groove 31, driving the closing plate 27 to move away from the fixing ring 26. At this time, the spring 29 is further compressed, and the closing plate 27 is disengaged from the fixing ring 26. In the later stage, the mud generated during the jacking of the jacking machine 3 is injected into the joint sleeve 35 through the joint tube 25, and is discharged to the outside through the collection tube 36 and the slurry discharge hose 37, completing the discharge of the mud. When the pusher 3 retreats, the inclined surface 34 of the pin rod 30 disengages from the conical groove 38, the spring 29 recovers its deformation, and drives the closing plate 27 to reset and fit tightly with the fixing ring 26, and closes the joint tube 25 again. The elastic coefficient of the spring 29 is in the range of 50-300N / mm, preferably 80-200N / mm, and the material can be selected from 60Si2MnA or 304 stainless steel.

[0042] By providing a plug-in closure structure, the joint insert 25 and the joint sleeve 35 can be automatically connected and disconnected, facilitating the subsequent discharge of mud, improving construction efficiency, and preventing mud leakage from causing environmental pollution. The entire structure is feasible and operational, and can meet actual construction needs.

[0043] Reference Figure 9 and Figure 10 A rubber ring 40 is fixedly mounted on the outer wall of the joint insert 25, near one end. The outer diameter of the rubber ring 40 matches the inner diameter of the joint sleeve 35, ensuring that when the joint insert 25 is inserted into the joint sleeve 35, the rubber ring 40 fits tightly against the inner wall of the joint sleeve 35, thereby enhancing the seal between the two. A retaining ring 39 is fixedly mounted within the joint sleeve 35. The retaining ring 39 not only limits one end of the joint insert 25 to prevent over-insertion, but also further enhances the seal between the joint sleeve 35 and the joint insert 25.

[0044] Improved sealing performance: The provision of the rubber ring 40 and the retaining ring 39 effectively improves the sealing performance between the joint sleeve 35 and the joint insert 25, thereby reducing the leakage of pollutants such as mud.

[0045] Reference Figure 9 and Figure 10A tapered groove 38 is provided at the end of the joint sleeve 35 away from the push mechanism 2. Simultaneously, an inclined surface 34 is provided at the end of the pin 30 away from the closing plate 27. When the joint insert 25 is inserted into the joint sleeve 35, the inclined surface 34 cooperates with the tapered groove 38, allowing the pin 30 to smoothly extend into the trapezoidal groove 31, thereby driving the closing plate 27.

[0046] The cooperation between the tapered groove 38 and the inclined surface 34 enables the pin rod 30 to smoothly extend into the trapezoidal groove 31 when the joint insert 25 is inserted into the joint sleeve 35, thereby driving the closing plate 27 and improving construction efficiency.

[0047] Reference Figure 7 A load-bearing block 24 is fixedly installed on the side of the mobile frame 23 away from the joint sleeve 35. The load-bearing block 24 is used to increase the stability of the mobile frame 23 placed in the pipe fitting 4 to prevent it from shaking or shifting during construction. Two connecting frames 41 are welded to the outer wall of the joint sleeve 35. These two connecting frames 41 are respectively fixedly connected to the outer walls of the output shafts of adjacent hydraulic cylinders. When the output shaft of the hydraulic cylinder moves forward, it can drive the joint sleeve 35 to move, thereby synchronously completing the separation and insertion of the joint insert 25 and the joint sleeve 35.

[0048] Reference Figure 7 A storage box 42 is fixedly provided on one side of the movable frame 23 near the joint sleeve 35. The storage box 42 is located below the joint insert 25 and is used to collect mud dripping from the joint insert 25 when the joint insert 25 and the joint sleeve 35 are separated to prevent it from polluting the construction environment.

[0049] Example 2: Reference Figure 11 , based on and improved upon Example 1, a receiving groove 47 is provided at the bottom of the load-bearing block 24. A lifting plate 43 is slidably connected within the receiving groove 47, and a plurality of movable wheels 44 are fixed to the bottom of the lifting plate 43. The downward movement of the lifting plate 43 and movable wheels 44 facilitates the movement of the movable frame 23. A screw rod 45 is threadedly provided within the load-bearing block 24. The bottom end of the screw rod 45 is rotatably connected to the top of the lifting plate 43. By rotating the screw rod 45, the lifting plate 43 can be driven up and down.

[0050] Specifically, when the movable frame 23 needs to be moved, the lifting plate 43 is driven downward by rotating the screw rod 45 so that the moving wheel 44 contacts the bottom inner wall of the pipe 4, thereby easily driving the movable frame 23 to move.

[0051] The lifting plate 43 is driven downward by the rotation of the screw rod 45 , and the moving wheel 44 contacts the bottom inner wall of the pipe 4 , so that the moving frame 23 can be easily moved, thereby improving construction efficiency.

[0052] Reference Figure 11At the bottom of the movable frame 23 and the load-bearing block 24, rubber pads 46 are fixedly provided to increase the stability of the movable frame 23 and the load-bearing block 24 when placed in the pipe 4.

[0053] The provision of the rubber pad 46 and the storage function of the lifting plate 43 and the moving wheel 44 together increase the stability of the movable frame 23 and the load-bearing block 24 placed in the pipe 4, and reduce the safety hazards caused by shaking or displacement during construction.

[0054] The construction method of the sewage pipe network jacking construction device comprises the following steps: S1. Excavate a foundation pit on the ground and pour concrete into the foundation pit to form a jacking shaft 1. Use a crane to place the jacking machine 3 on multiple first rolling rollers 11. The second rolling rollers 13 on both sides limit the jacking machine 3. The arc grooves 14 on the first and second rolling rollers 11 and 13 fit the outer wall of the jacking machine 3 to ensure that the jacking machine 3 can move forward stably. The output shaft of the hydraulic cylinder pushes the jacking machine 3 forward through the rubber plate 21, and multiple limit blocks 22 cooperate to limit the jacking machine 3. Then, the jacking mechanism 2 pushes the jacking machine 3 forward as a whole, and the jacking operation is initially carried out. S2. During the pushing process, the laser positioning device receiving end 20 cooperates with the corresponding laser positioning device transmitting end 18 to measure the forward trajectory of the pushing machine 3. When the pushing machine 3 deviates, the driving motor 9 drives the threaded rod 8 to rotate, and the threaded rod 8 drives the first rolling roller 11 and the second rolling roller 13 thereon to adjust the position, thereby adjusting the forward direction of the pushing machine 3. Similarly, the subsequent pipe fittings 4 are adjusted in the same way at a later time. The jack 3 is pushed forward and the jack 3 is pushed forward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack 3 is pushed backward and the jack S4. When it is necessary to add a pipe fitting 4 and continue pushing, the output shaft of the hydraulic cylinder contracts and drives the joint sleeve 35 to move synchronously, and the joint insert 25 is separated from the joint sleeve 35. The closing plate 27 is re-fitted with the fixing ring 26 under the action of the spring 29 to prevent mud from leaking from the joint insert 25. Then, the pipe fitting 4 is hoisted between the first rolling roller 11 and the second rolling roller 13 by a crane, and the pipe fitting 4 is pushed by the pushing mechanism 2 for pushing. Before pushing, the movable frame 23 is moved into the pipe fitting 4. Then, during the pushing process, the joint insert 25 can be inserted into the joint sleeve 35, so that the mud can be discharged at a later time.

[0055] However, as is well known to those skilled in the art, the working principles and wiring methods of the laser locator transmitting end 18, the laser locator receiving end 20 and the jacking machine 3 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0056] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0057] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A pipeline positioning assembly, comprising a base plate (15) and a support plate (5) fixed to the bottom of a jacking well (1), characterized in that: Also includes: A pushing mechanism (2) is fixed to the top of the base plate (15) by bolts and is composed of a plurality of hydraulic cylinders, wherein the output end of each hydraulic cylinder is provided with a rubber plate (21) with a limit block (22); The detection structure includes a laser locator transmitting end (18) provided on a base plate (15) and a laser locator receiving end (20) provided on an inner wall of the jacking machine (3), wherein the laser locator receiving end (20) is fixed to the inner wall of the jacking machine (3) via a mounting frame (19); A guide structure comprising at least one support assembly provided on a support plate (5), wherein the support assembly comprises a support slide (7) driven to move by a threaded rod (8), wherein the support slide (7) is provided with a first rolling roller (11) with an arc-shaped groove (14) and two second rolling rollers (13), wherein the arc-shaped groove (14) forms a rolling fit with the outer wall of the jacking machine (3) or the pipe (4); The laser locator receiving end (20) receives the laser beam from the laser locator transmitting end (18) in real time to detect the jacking trajectory. When a deviation is detected, the threaded rod (8) drives the supporting slide (7) to drive the first rolling roller (11) and the second rolling roller (13) to adjust their positions to correct the jacking direction.

2. The pipeline positioning assembly according to claim 1, characterized in that: The support assembly further comprises: A movable groove (6) is provided on the top of the support plate (5), and the threaded rod (8) is rotatably provided in the movable groove (6) via a bearing; A drive motor (9) is fixed to the side of the support plate (5) through a frame, and its output shaft is connected to the end of the threaded rod (8) through a coupling; The bottom of the supporting slide plate (7) is provided with a threaded hole that cooperates with the threaded rod (8), and the top is provided with a first rolling roller (11) and a second rolling roller (13) respectively installed through a first frame (10) and two second frames (12).

3. The pipeline positioning assembly according to claim 2, characterized in that: The central axis of the first rolling roller (11) and the central axes of the two second rolling rollers (13) form an isosceles triangle distribution, and the installation height of the first rolling roller (11) is higher than that of the second rolling rollers (13).

4. The pipeline positioning assembly according to claim 1, characterized in that: The limit block (22) is an arc-shaped plate structure, the curvature of its inner arc surface matches the inner diameter of the pipe (4), and the limit blocks (22) of each hydraulic cylinder are evenly distributed along the circumference.

5. A sewage pipe network jacking construction device, characterized in that: The pipeline positioning assembly according to any one of claims 1 to 4 further comprises: A movable frame (23) is slidably arranged on the inner wall of the bottom of the pipe (4), and a joint insert (25) is provided therein; The joint sleeve (35) is connected to the hydraulic cylinder output shaft of the pushing mechanism (2) through the connecting frame (41); The plug-in closed structure comprises a fixing ring (26) and a closing plate (27) arranged in the joint insert (25), wherein the closing plate (27) forms an elastic sealing fit with the fixing ring (26) via a sliding rod (28) and a spring (29); The bottom of the joint sleeve (35) is fixedly connected to a collecting cylinder (36), and the bottom end of the collecting cylinder (36) is fixedly connected to a slurry discharge hose (37); When the hydraulic cylinder pushes the jacking machine (3), the joint insert (25) is inserted into the joint sleeve (35) and drives the closing plate (27) to open, thereby forming a mud discharge channel.

6. The sewage pipe network jacking construction device according to claim 5, characterized in that: The plug-in closed structure also includes: A plurality of pins (30) are sealingly slidably passed through the wall of the joint insert (25), and the inner ends of the pins are provided with round heads (33) that cooperate with the trapezoidal grooves (31) of the closing plate (27); A retaining ring (39) is fixed to the inner wall of the joint sleeve (35), and its inner hole diameter matches the outer diameter of the joint insert (25); The plug-in end of the joint sleeve (35) is provided with a tapered groove (38) that matches the outer end inclined surface (34) of the pin rod (30).

7. The sewage pipe network jacking construction device according to claim 6, characterized in that: The outer wall of the joint insert (25) is provided with a rubber ring (40), and the outer diameter of the rubber ring (40) is 0.5-1 mm larger than the inner diameter of the joint sleeve (35) to form an interference fit.

8. The sewage pipe network jacking construction device according to claim 7, characterized in that: Also includes: The load-bearing block (24) is fixed to a side of the movable frame (23) away from the joint sleeve (35), and a receiving groove (47) with a lifting plate (43) is provided at the bottom thereof.

9. The sewage pipe network jacking construction device according to claim 8, characterized in that: Also includes: A screw rod (45) having a thread passing through the load-bearing block (24) and a lower end thereof being hinged to the lifting plate (43); A plurality of moving wheels (44) are mounted on the bottom of the lifting plate (43); The screw rod (45) can drive the moving wheel (44) to move downward to contact the inner wall of the pipe (4) or to move upward to be received in the receiving groove (47).

10. A construction method for a sewage pipe network pipe jacking construction device, applied to the sewage pipe network pipe jacking construction device according to claim 9, characterized in that: The following steps are involved: S1. Use a crane to place the pusher (3) on a plurality of first rolling rollers (11), with the second rolling rollers (13) on both sides limiting the position, and the arc-shaped grooves (14) thereof fit in with the outer wall of the pusher (3) to ensure stable movement; the output shaft of the hydraulic cylinder pushes the pusher (3) forward through the rubber plate (21), and the plurality of limit blocks (22) cooperate to limit the position, and the push mechanism (2) pushes the pusher (3) forward as a whole, completing the initial push operation; S2. During the pushing process, the laser positioning device receiving end (20) and the transmitting end (18) cooperate to monitor the trajectory of the pushing machine (3). When the pushing machine (3) deviates, the driving motor (9) drives the threaded rod (8) to rotate, driving the first rolling roller (11) and the second rolling roller (13) to adjust their positions, thereby correcting the direction of the pushing machine (3). The subsequent pipe fittings (4) are also adjusted in this way. S3, before pushing, the screw rod (45) is rotated to lower the lifting plate (43), and the moving wheel (44) drives the moving frame (23), the bearing block (24) and the joint insert (25) to move to the vicinity of the port of the pushing machine (3), and the screw rod (45) is rotated in the opposite direction to accommodate the moving wheel (44), so that the moving frame (23) is stably placed in the pushing machine (3); when the output shaft of the hydraulic cylinder is extended to push the pushing machine (3), the joint insert (25) is inserted into the joint sleeve (35), the inclined surface (34) cooperates with the conical groove (38) to make the pin rod (30) extend into the trapezoidal groove (31), and the round head (33) drives the closing plate (27) to move left and separate from the fixed ring (26), and the pushing mud is discharged through the joint insert (25), the joint sleeve (35), the collecting tube (36) and the slurry discharge hose (37); S4. When the pipe fitting (4) needs to be installed, the hydraulic cylinder output shaft contracts and drives the joint sleeve (35) to move backward, the joint insert (25) is separated, and the closing plate (27) is reset under the action of the spring (29) and fits with the fixed ring (26) to prevent mud leakage; then the pipe fitting (4) is hoisted between the first and second rolling rollers, and the pushing mechanism (2) pushes the pipe fitting (4) forward. Before pushing, the movable frame (23) is moved into the pipe fitting (4). During pushing, the joint insert (25) is inserted into the joint sleeve (35) to continue mud discharge.

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