Pipe positioning components and sewage pipe jacking construction equipment and construction methods

Abstract

This invention relates to a pipeline positioning component and a sewage pipe jacking construction device and method, belonging to the technical field of pipeline construction equipment. The device utilizes a jacking mechanism installed within the jacking shaft, in conjunction with a support plate. A hydraulic cylinder drives a rubber plate to push the pipe fittings, and a laser positioning device with transmitter and receiver ends monitors the jacking trajectory in real time. To address pipe fitting misalignment, a support plate driven by a threaded rod is installed on the support plate. A first and second rolling roller with arc-shaped grooves are mounted on the top of the plate, and the jacking direction is corrected by adjusting the position of the rolling rollers via a motor. The device can detect the movement trajectory in real time during the jacking process and adjust the forward direction through multiple support structures when the trajectory deviates. Furthermore, when adding pipe fittings, it can automatically complete the separation and insertion of joints and sleeves, facilitating slurry discharge.

Description

Technical Field

[0001] This invention relates to the field of pipe support technology, and in particular to pipe positioning components and sewage pipe network jacking construction devices and methods. Background Technology

[0002] Pipe jacking is a trenchless construction method. It's a pipeline installation technology that involves no excavation or only partial excavation. The jacking operation takes place inside a working shaft. Using the thrust generated by the main jacking cylinder, the frictional resistance between the pipeline and the surrounding soil is overcome, pushing the pipeline into the ground along the designed axis. After a single pipe section is jacked into place, the next section is connected via a special interface, forming a continuous jacking operation. Its technical principle is to use the propulsion force provided by the main jacking cylinder and intermediate shafts to drive the tool pipe or tunneling machine through the soil layers. The pipeline is connected section by section through a socket joint and simultaneously buried between two working shafts as the tool pipe advances.

[0003] Existing technologies typically employ the coordinated operation of a pipe jacking machine and a hydraulic system. The pipe jacking machine cuts the soil in front of it with a cutterhead, and simultaneously injects mud to form a mud-water mixture, which is then transported to a ground mud-water separation system through a slurry discharge pipeline to achieve continuous operation.

[0004] However, the existing technology has the following room for improvement:

[0005] 1. The disassembly and assembly of the slurry discharge pipeline requires manual work using specialized tools such as pipe wrenches and chain pliers. It is recommended to add hydraulic quick couplings or automatic docking devices to improve work efficiency.

[0006] 2. Initial positioning deviation of the pipe fittings or loss of posture control during the jacking process will cause the axis of the formed pipe to deviate from the design trajectory. Real-time monitoring of the laser guidance system should be strengthened, and an adjustable wedge correction device should be configured to ensure jacking accuracy.

[0007] To address the aforementioned issues, this invention proposes a pipeline positioning component and a sewage pipe network jacking construction device and method. Summary of the Invention

[0008] The purpose of this invention is to solve the shortcomings of existing jacking machines, such as the cumbersome assembly and disassembly of grout discharge pipes and external grout discharge pipes, and the irregular placement of pipe fittings affecting pipeline laying. The invention proposes a pipe positioning component and a sewage pipe network jacking construction device and construction method.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A pipe positioning assembly includes a base plate and a support plate fixed to the bottom of a pipe jacking well, and further includes:

[0011] 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.

[0012] The detection structure includes a laser positioning transmitter on the substrate and a laser positioning receiver on the inner wall of the pusher, wherein the laser positioning receiver is fixed to the inner wall of the pusher by a mounting bracket.

[0013] The guide structure includes at least one support assembly disposed on a support plate. The support assembly includes a support slide plate that is driven to move by a threaded rod. The support slide plate is provided with a first rolling roller with an arc-shaped groove and two second rolling rollers. The arc-shaped groove forms a rolling engagement with the outer wall of the jacking machine or the pipe fitting.

[0014] The laser positioning receiver receives the laser beam from the laser positioning transmitter in real time to detect the jacking trajectory. When a deviation is detected, the threaded rod drives the support slide to adjust the position of the first and second rolling rollers to correct the jacking direction.

[0015] As a further improvement to the above technical solution:

[0016] The support assembly further includes: a movable groove located on the top of the support plate, wherein the threaded rod is rotatably mounted in the movable groove via a bearing; a drive motor fixed to the side of the support plate via a frame, wherein its output shaft is connected to the end of the threaded rod via a coupling; wherein the bottom of the support slide plate is provided with a threaded hole that mates with the threaded rod, and the top is provided with a first frame and two second frames respectively mounting a first rolling roller and a second rolling roller.

[0017] 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.

[0018] The limiting block is an arc-shaped plate structure, the curvature of its inner arc surface matches the inner diameter of the pipe, and the limiting blocks of each hydraulic cylinder are evenly distributed along the circumference.

[0019] A sewage pipe network jacking construction device includes the aforementioned pipe positioning component, and further includes: a movable frame, slidably disposed on the inner wall of the bottom of the pipe fitting, with a connector insert pipe passing through it; a connector sleeve, connected to the hydraulic cylinder output shaft of the jacking mechanism through a connecting frame; and a plug-in sealing structure, including a fixing ring and a sealing plate disposed inside the connector insert pipe, wherein the sealing plate forms an elastic sealing fit with the fixing ring through a sliding rod and a spring, and a collecting cylinder is fixedly connected to the bottom of the connector sleeve, and a slurry discharge hose is fixedly connected to the bottom end of the collecting cylinder.

[0020] When the hydraulic cylinder pushes the jacking machine, the connector tube is inserted into the connector sleeve and drives the sealing plate to open, forming a mud discharge channel.

[0021] As a further improvement to the above technical solution:

[0022] The plug-in sealing structure further includes: multiple pins that slide through the connector tube wall in a sealing manner, with a round head at the inner end that mates with the trapezoidal groove of the sealing plate; a retaining ring fixed to the inner wall of the connector sleeve, with its inner diameter matching the outer diameter of the connector tube; wherein, the plug end of the connector sleeve has a tapered groove that mates with the inclined surface of the outer end of the pin, and the outer wall of the connector tube has a rubber ring, the outer diameter of which is 0.5-1mm larger than the inner diameter of the connector sleeve to form an interference fit.

[0023] It also includes: a load-bearing block, fixed to the side of the mobile frame away from the joint sleeve, with a storage slot with a lifting plate at its bottom.

[0024] It also includes: a lead screw, threaded through the load-bearing block, with its lower end hinged to the lifting plate; and multiple movable wheels installed at the bottom of the lifting plate; wherein the lead screw can drive the movable wheels to move down to contact the inner wall of the pipe or move up to be stored in the storage groove.

[0025] The construction method of the sewage pipe jacking construction device in this application includes the following steps:

[0026] S1. Using a crane, the jacking machine is placed on multiple first rolling rollers, with second rolling rollers on both sides for limiting. The arc-shaped grooves of the rollers fit against the outer wall of the jacking machine to ensure stable movement. The output shaft of the hydraulic cylinder pushes the jacking machine forward through the rubber plate. Multiple sets of limit blocks work together to limit the movement. The jacking mechanism pushes the jacking machine forward as a whole, completing the initial jacking operation.

[0027] S2. During the jacking process, the laser positioning instrument receiver and transmitter work together to monitor the trajectory of the jacking machine. When there is a deviation, the drive motor drives the threaded rod to rotate, which drives the first rolling roller and the second rolling roller to adjust their positions and correct the direction of the jacking machine. Subsequent pipe fittings are also adjusted in the same way.

[0028] S3. Before jacking, rotate the screw to lower the lifting plate. The moving wheel drives the moving frame, the load-bearing block and the connector tube to move to the vicinity of the jacking machine port. Rotate the screw in the opposite direction to retract the moving wheel and stabilize the moving frame inside the jacking machine. When the hydraulic cylinder output shaft extends to push the jacking machine, the connector tube is inserted into the connector sleeve. The inclined surface and the conical groove cooperate to make the pin extend into the trapezoidal groove. The round head drives the sealing plate to move to the left and separate from the fixed ring. The jacking mud is discharged through the connector tube, connector sleeve, collection cylinder and slurry discharge hose.

[0029] S4. When pipe fittings need to be installed, the hydraulic cylinder output shaft retracts, causing the connector sleeve to move backward, the connector insertion tube disengages, and the sealing plate resets under the action of the spring, fitting with the fixing ring to prevent mud leakage; then the pipe fitting is hoisted between the first and second rolling rollers, and the jacking mechanism pushes the pipe fitting forward. Before jacking, the moving frame is moved into the pipe fitting. During jacking, the connector insertion tube is inserted into the connector sleeve, and mud discharge continues.

[0030] Beneficial effects: In this invention, a threaded rod is rotatably connected inside the movable groove, and a support slide plate that is threadedly connected to the threaded rod is slidably connected inside the movable groove. A first frame and two second frames are fixedly installed on the top of the support slide plate by bolts. The first rolling roller is rotatably installed inside the first frame, and the two second rolling rollers are rotatably installed inside their respective second frames. The threaded rod is driven to rotate by a drive motor, and the threaded rod drives the first and second rolling rollers on it to adjust their positions, thereby adjusting the forward direction of the jacking machine. Similarly, subsequent pipe fittings are adjusted in the same way.

[0031] In this invention, one end of each of the sliding rods is fixedly connected to the sealing plate. Multiple pins are slidably passed through the connector tube. The outer wall of the sealing plate is provided with multiple trapezoidal grooves. When the output shaft of the hydraulic cylinder extends and pushes the jacking machine, one end of the connector tube is inserted into the connector sleeve, which allows the pins to extend into the trapezoidal grooves. The pins are inserted into the trapezoidal grooves and drive the sealing plate to move. The sealing plate is disengaged from the fixing ring. Then, the mud generated during the later jacking of the jacking machine is injected into the connector sleeve through the connector tube and discharged to the outside through the collection cylinder and the slurry discharge hose, thus completing the discharge of the mud.

[0032] In this invention, a collecting cylinder is fixedly connected to the bottom of the connector sleeve, and a slurry discharge hose is fixedly connected to the bottom end of the collecting cylinder. After the connector tube is detached from the connector sleeve, the remaining slurry in the connector sleeve can be collected in the collecting cylinder, which not only facilitates discharge to the outside by the slurry discharge hose, but also prevents slurry leakage from the connector sleeve and avoids slurry contamination of the first and second rolling rollers, so that the first and second rolling rollers can stably complete the conveying of the pipe fitting.

[0033] In this invention, the moving trajectory can be detected in real time during the process of the jacking mechanism pushing the pipe, and the forward direction can be adjusted by the cooperation of multiple support structures when the trajectory deviates. In addition, when the jacking of the pipe is increased, the separation and insertion of the joint pipe and the joint sleeve can be completed automatically, which facilitates the discharge of mud. Attached Figure Description

[0034] Figure 1 This is a three-dimensional cross-sectional view of the jacking shaft of the pipe positioning assembly provided by the present invention;

[0035] Figure 2 This is a three-dimensional structural schematic diagram of the pipe positioning component provided by the present invention;

[0036] Figure 3 This is a three-dimensional exploded structural diagram of the support slide plate and support plate of the pipe positioning assembly provided by the present invention;

[0037] Figure 4A three-dimensional structural diagram of the first and second rolling rollers of the pipe positioning assembly provided by the present invention;

[0038] Figure 5 This is a three-dimensional exploded cross-sectional view of the pushing mechanism and pipe fittings of the pipe positioning assembly provided by the present invention.

[0039] Figure 6 This is a three-dimensional exploded view of the laser positioning receiver and laser positioning transmitter of the pipeline positioning assembly provided by the present invention.

[0040] Figure 7 This is a three-dimensional structural diagram of the movable frame, joint sleeve, and connecting frame of the sewage pipe network jacking construction device provided by the present invention;

[0041] Figure 8 This is a partial three-dimensional cross-sectional structural diagram of the joint sleeve and joint insertion pipe of the sewage pipe network jacking construction device provided by the present invention.

[0042] Figure 9 This is a three-dimensional exploded cross-sectional view of the joint sleeve, sealing plate and joint insertion pipe of the sewage pipe network jacking construction device provided by the present invention.

[0043] Figure 10 for Figure 9 Enlarged structural diagram at point A in the middle;

[0044] Figure 11 This is a 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.

[0045] In the diagram: 1. Pipe jacking well; 2. Jacking mechanism; 3. Jacking machine; 4. Pipe fitting; 5. Support plate; 6. Moving groove; 7. Support slide plate; 8. Threaded rod; 9. Drive motor; 10. First frame; 11. First rolling roller; 12. Second frame; 13. Second rolling roller; 14. Arc-shaped groove; 15. Base plate; 16. Pressure plate; 17. Mounting plate; 18. Laser positioning device transmitter; 19. Mounting frame; 20. Laser positioning device receiver; 21. Rubber plate; 22. Limiting block; 23. 24. Moving frame; 25. Load-bearing block; 26. Connector tube; 27. Fixing ring; 28. Enclosing plate; 29. ​​Sliding rod; 30. Spring; 31. Pin; 32. Trapezoidal groove; 33. Limiting ring; 34. Round head; 35. Inclined surface; 36. Connector sleeve; 37. Collection cylinder; 38. Slurry discharge hose; 39. Conical groove; 40. Retaining ring; 41. Rubber ring; 42. Connecting frame; 43. Storage box; 44. Lifting plate; 45. Moving wheel; 46. Lead screw; 47. Rubber pad; 48. Storage slot. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0047] Example 1: Refer to Figures 1-11 A pipe positioning assembly includes a base plate 15 and a support plate 5 fixed to the bottom of a jacking well 1, and further includes:

[0048] 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.

[0049] The detection structure includes a laser positioning transmitter 18 disposed on the substrate 15 and a laser positioning receiver 20 disposed on the inner wall of the pusher 3. The laser positioning receiver 20 is fixed to the inner wall of the pusher 3 by a mounting bracket 19.

[0050] The guide structure includes at least one support component disposed on the support plate 5. The support component includes a support slide plate 7 that is driven to move by a threaded rod 8. The support slide plate 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 engagement with the outer wall of the pusher 3 or the pipe fitting 4.

[0051] The laser positioning receiver 20 receives the laser beam from the laser positioning transmitter 18 in real time to detect the jacking trajectory. When a deviation is detected, the threaded rod 8 drives the support slide plate 7 to adjust the position of the first rolling roller 11 and the second rolling roller 13 to correct the jacking direction.

[0052] In practice, a base plate 15 is bolted to the inner wall of the bottom of the jacking shaft 1. Then, a support plate 5 is bolted to the inner wall of the bottom of the jacking shaft 1 on one side of the base plate 15. The jacking mechanism 2 is placed on top of the base plate 15 and bolted to it securely. A pressure plate 16 is bolted to the top of the base plate 15, and the pressure plate 16 is also bolted to one side of the inner wall of the jacking shaft 1. One end of the jacking mechanism 2 is bolted to the pressure plate 16, forming a stable support structure. When installing the pressure plate 16, it is necessary to ensure that it fits tightly against the base plate 15 and the inner wall of the jacking shaft 1, and appropriate adjustments are made to ensure a secure connection. Simultaneously, the tightness of the bolts must be checked to ensure that the pressure plate 16 can withstand the reaction force of the jacking mechanism 2.

[0053] The reaction force of the jacking mechanism 2 is dispersed to the inner wall of the jacking well 1 by the dispersing effect of the pressure plate 16, so as to avoid direct damage to the jacking well 1.

[0054] Specifically, when the output shaft of the jacking mechanism 2 extends to perform pipe jacking operations, the pressure plate 16 can disperse the reaction force received by the jacking mechanism 2 to the inner wall of the pipe jacking well 1, preventing the jacking mechanism 2 from directly transmitting the force to the pipe jacking well 1, thereby protecting the structural safety of the pipe jacking well 1.

[0055] Reference Figure 5 The jacking mechanism 2 consists of multiple hydraulic cylinders. Each hydraulic cylinder has a rubber plate 21 fixed to one end of its output shaft to push the pipe fitting 4 forward. When the jacking mechanism 2 is activated, the multiple hydraulic cylinders work simultaneously, and the rubber plate 21 at one end of their output shafts pushes the pipe fitting 4 forward. The rubber plate 21 increases the friction between the pipe fitting 4 and the cylinder, ensuring a stable and reliable jacking process.

[0056] Reference Figure 5 Multiple rubber plates 21 are secured to one side by welding or bolts with limiting blocks 22. The shape and size of the limiting blocks 22 are designed according to the inner and outer diameters of the jacking machine 3 and the pipe fitting 4 to ensure that the limiting blocks 22 can fit tightly against the inner wall of the pipe fitting 4. When installing the rubber plates 21 and limiting blocks 22, it is necessary to ensure that the limiting blocks 22 are aligned with the inner wall of the adjacent pipe fitting 4 and make appropriate adjustments to ensure a tight fit. At the same time, the elasticity and wear resistance of the rubber plates 21 need to be checked to ensure that they can meet the requirements of long-term use.

[0057] Specifically, the sides of the multiple limiting blocks 22 that are far apart from each other are all in contact with the inner wall of the adjacent pipe fitting 4 to position the jacking machine 3 and the pipe fitting 4 and prevent them from shaking or shifting during the jacking process.

[0058] Reference Figure 5 and Figure 6 On the top of the base plate 15, the mounting plate 17 is fixed to the side of the jacking mechanism 2 near the jacking machine 3 using bolts. According to the construction accuracy requirements, multiple laser positioning transmitters 18 are evenly fixed to the side of the mounting plate 17 near the jacking machine 3 using bolts or other fixing methods to ensure accurate laser emission direction. On the inner wall of the jacking machine 3, multiple mounting brackets 19 are fixed in appropriate positions using bolts or other methods according to the layout of the laser positioning transmitters 18. The laser positioning receiver 20 is fixed to the side of the mounting bracket 19 near the jacking mechanism 2 to ensure it can accurately receive the laser beam emitted by the laser positioning transmitter 18.

[0059] Specifically, during the pipe jacking operation, the laser positioning device transmitter 18 continuously generates and emits a laser beam. The laser positioning device receiver 20 receives the laser beam in real time and transmits the received signal to the control system. The control system determines whether the pipeline has deviated from the predetermined position based on the received signal. If it does, it issues an alarm in a timely manner and takes corresponding adjustment measures.

[0060] In order to guide the forward direction of the jacking pipe 4 during the process, a positioning guide structure is provided on the support plate 5, which is composed of multiple support structures.

[0061] Reference Figure 5 and Figure 6 The support structure includes a precisely cut movable groove 6 on the top of the support plate 5, according to the size of the pipe fitting 4 and construction requirements, ensuring that the size and position of the movable groove 6 can meet the sliding requirements of the support slide plate 7. A threaded rod 8 is installed in the movable groove 6 via a rotating connection such as bearings. 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 via a coupling, ensuring that the drive motor 9 can stably drive the threaded rod 8 to rotate. The support slide plate 7 is placed in the movable groove 6, making it threadedly connected to the threaded rod 8. Simultaneously, it is ensured that the support slide plate 7 can slide smoothly in the movable groove 6 without any jamming. On the top of the support slide plate 7, the first frame 10 and two second frames 12 are firmly fixed with bolts. The first rolling roller 11 is rotatably set inside the first frame 10, and the two second frames 12 are respectively located on both sides of the first frame 10. Two second rolling rollers 13 are rotatably set inside their respective second frames 12, ensuring that the rolling rollers can rotate freely.

[0062] Specifically, during the pipe jacking operation, when it is necessary to adjust the forward direction of the pipe fitting 4, the drive motor 9 is started. The drive motor 9 drives the threaded rod 8 to rotate through the coupling, and the threaded rod 8 drives the support slide plate 7 to move within the moving groove 6. The support slide plate 7 drives the first rolling roller 11 and the second rolling roller 13 to move, thereby adjusting the direction of the pipe fitting 4. The multiple support structures cooperate with each other to accurately adjust the forward direction of the pipe fitting 4, ensuring that the pipe fitting 4 is accurately jacked along the predetermined route.

[0063] Reference Figure 4 The outer walls of the first rolling roller 11 and the second rolling roller 13 are both machined with arc-shaped grooves 14. The shape of the arc-shaped grooves 14 matches the outer walls of the pusher 3 and the pipe fitting 4 to ensure that the two can fit tightly together. When installing the first rolling roller 11 and the second rolling roller 13, it is necessary to ensure that their arc-shaped grooves 14 are aligned with the outer walls of the pusher 3 and the pipe fitting 4, and make appropriate adjustments to ensure a tight fit.

[0064] Specifically, during the forward movement of the jacking machine 3 and the pipe fitting 4, the arc-shaped groove 14 can limit their movement, effectively preventing the jacking machine 3 and the pipe fitting 4 from shifting, and improving the stability and accuracy of the pipe jacking operation.

[0065] 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 shifting or shaking during the jacking process.

[0066] Reference Figure 7 The sewage pipe network jacking construction device includes the aforementioned positioning components and a movable frame 23. The movable frame 23 is slidably fitted on the bottom inner wall of the pipe fitting 4. A connector insertion pipe 25 is fixedly inserted inside the movable frame 23. One end of the connector insertion pipe 25 is connected to the slurry discharge pipe inside the jacking machine 3. A connector sleeve 35 is provided on one side of the jacking mechanism 2.

[0067] Reference Figure 7 and Figure 8 The bottom of the connector sleeve 35 is fixedly connected to a collection cylinder 36, and the bottom end of the collection cylinder 36 is fixedly connected to a slurry discharge hose 37. The slurry discharge hose 37 is connected to an external mud pump. The collection cylinder 36 and the slurry discharge hose 37 are used to discharge the mud injected into the connector sleeve 35 to the outside.

[0068] Reference Figures 7-10 In order to automatically connect the connector tube 25 and the connector sleeve 35 to facilitate the subsequent discharge of mud, a plug-in sealing structure is provided between the connector tube 25 and the connector sleeve 35. The plug-in sealing structure includes a fixing ring 26 fixed inside the connector tube 25 and a sealing plate 27 sliding inside the connector tube 25.

[0069] Reference Figures 7-10 The plug-in sealing structure also includes multiple sliding rods 28 that slide through the fixed ring 26. One end of each sliding rod 28 is fixedly connected to the sealing plate 27, and the sealing plate 27 is located on the side of the fixed ring 26 away from the pushing mechanism 2. On the side of the fixed ring 26 away from the sealing plate 27, multiple springs 29 are installed through spring seats. Each spring 29 is sleeved on the outer wall of the corresponding sliding rod 28, and one end of each spring 29 is fixedly connected to the outer wall of the corresponding sliding rod 28. This is used to reset the sealing plate 27 and fit it against the fixed ring 26, thus completing the sealing of the connector tube 25. Multiple pins 30 slide through the connector tube 25 for sealing. The outer wall of the sealing plate 27 is provided with multiple trapezoidal grooves 31. The ends of the multiple pins 30 that are close to each other extend into the adjacent trapezoidal grooves 31 and cooperate with the trapezoidal grooves 31, which is used to drive the sealing plate 27 to move away from the fixed ring 26, facilitating the discharge of mud.

[0070] Reference Figure 10 A limiting ring 32 is fixedly sleeved on the outer wall of the pin 30 to limit the pin 30 and prevent it from detaching from the connector tube 25. The end of the pin 30 near the sealing plate 27 is provided with a round head 33. The pin 30 engages with the trapezoidal groove 31 through the round head 33 to facilitate the movement of the sealing plate 27. The round head 33 can also be a conical head with a cone angle ranging from 15° to 45°, forming a linear contact with the trapezoidal groove 31, which is suitable for rapid insertion and removal. The round head 33 can also be a wedge-shaped head with a flattened front end design (thickness 2-8mm) to enhance the driving torque on the sealing plate 27, which is suitable for high viscosity mud environments.

[0071] Specifically, in the initial state, spring 29 is compressed, and the sealing plate 27 is tightly fitted with the fixing ring 26, sealing the connector tube 25 to prevent mud leakage. When the hydraulic cylinder output shaft extends and pushes the jacking machine 3, one end of the connector tube 25 is inserted into the connector sleeve 35. During insertion, the inclined surface 34 of the pin 30 engages with the conical groove 38 in the connector sleeve 35, allowing the pin 30 to extend into the trapezoidal groove 31. The round head 33 at the top of the pin 30 engages with the trapezoidal groove 31, driving the sealing plate 27 to move away from the fixing ring 26. At this time, spring 29 is further compressed, and the sealing plate 27 disengages from the fixing ring 26. Mud generated during the later jacking operation of the jacking machine 3 is injected into the connector sleeve 35 through the connector tube 25 and discharged to the outside through the collection cylinder 36 and the discharge hose 37, completing the mud discharge. When the pusher 3 retracts, the inclined surface 34 of the pin 30 disengages from the tapered groove 38, the spring 29 returns to its original deformation, and the drive sealing plate 27 resets and fits tightly against the fixing ring 26, thus sealing the connector tube 25 again. The elastic coefficient of the spring 29 is in the range of 50-300 N / mm, preferably 80-200 N / mm, and the material can be 60Si2MnA or 304 stainless steel.

[0072] By setting up a plug-in closed structure, the connection and separation of the connector plug 25 and the connector sleeve 35 can be completed automatically, facilitating the subsequent discharge of mud, improving construction efficiency, and preventing mud leakage from polluting the environment. The entire structure is feasible and operable, and can meet actual construction needs.

[0073] Reference Figure 9 and Figure 10 A rubber ring 40 is fixedly fitted onto the outer wall of the connector cannula 25 near one end. The outer diameter of the rubber ring 40 matches the inner diameter of the connector sleeve 35 to ensure that the rubber ring 40 fits tightly against the inner wall of the connector sleeve 35 when the connector cannula 25 is inserted into the connector sleeve 35, thereby increasing the sealing between the two. A retaining ring 39 is fixedly installed inside the connector sleeve 35. The retaining ring 39 not only limits one end of the connector cannula 25 to prevent over-insertion, but also further increases the sealing between the connector sleeve 35 and the connector cannula 25.

[0074] Increased sealing: The rubber ring 40 and the retaining ring 39 effectively increase the sealing between the connector sleeve 35 and the connector insertion tube 25, reducing the leakage of pollutants such as mud.

[0075] Reference Figure 9 and Figure 10A tapered groove 38 is provided at the end of the connector sleeve 35 away from the pushing mechanism 2. Simultaneously, a bevel 34 is provided at the end of the pin 30 away from the closing plate 27. When the connector tube 25 is inserted into the connector sleeve 35, the bevel 34 engages with the tapered groove 38, allowing the pin 30 to smoothly extend into the trapezoidal groove 31, thereby driving the closing plate 27.

[0076] The cooperation between the tapered groove 38 and the inclined surface 34 allows the pin 30 to smoothly extend into the trapezoidal groove 31 when the connector insertion tube 25 is inserted into the connector sleeve 35, thereby driving the closing plate 27 and improving construction efficiency.

[0077] Reference Figure 7 A load-bearing block 24 is fixedly installed on the side of the movable frame 23 away from the connector sleeve 35. The load-bearing block 24 is used to increase the stability of the movable frame 23 placed inside the pipe fitting 4 and prevent it from shaking or shifting during construction. Two connecting brackets 41 are welded to the outer wall of the connector sleeve 35. These two connecting brackets 41 are fixedly connected to the outer wall of the output shaft of the adjacent hydraulic cylinder. When the output shaft of the hydraulic cylinder moves forward, it can drive the connector sleeve 35 to move, thereby simultaneously completing the separation and insertion of the connector insertion tube 25 and the connector sleeve 35.

[0078] Reference Figure 7 A collection box 42 is fixedly installed on the side of the movable frame 23 near the connector sleeve 35. The collection box 42 is located below the connector tube 25 and is used to collect the mud dripping from the connector tube 25 when the connector tube 25 and the connector sleeve 35 are separated, so as to prevent it from polluting the construction environment.

[0079] Example 2: Refer to Figure 11 An improvement upon Embodiment 1 involves providing a storage groove 47 at the bottom of the load-bearing block 24. A lifting plate 43 is slidably connected within the storage groove 47, and multiple casters 44 are fixed to the bottom of the lifting plate 43. The downward movement of the lifting plate 43 and the casters 44 facilitates the movement of the mobile frame 23. A lead screw 45 is threaded through the load-bearing block 24. The bottom end of the lead screw 45 is rotatably connected to the top of the lifting plate 43. Rotating the lead screw 45 drives the lifting plate 43 to rise or fall.

[0080] Specifically, when it is necessary to move the mobile frame 23, the rotation of the lead screw 45 drives the lifting plate 43 to move down, so that the moving wheel 44 contacts the bottom inner wall of the pipe fitting 4, thereby easily moving the mobile frame 23.

[0081] The lifting plate 43 is driven to move downward by the rotation of the lead screw 45, and the moving wheel 44 contacts the bottom inner wall of the pipe fitting 4, so that the moving frame 23 can move easily and improve construction efficiency.

[0082] Reference Figure 11Rubber pads 46 are fixedly installed at the bottom of the movable frame 23 and the load-bearing block 24 to increase the stability of the movable frame 23 and the load-bearing block 24 when placed inside the pipe fitting 4.

[0083] The rubber pad 46, along with the storage function of the lifting plate 43 and the moving wheels 44, together increase the stability of the moving frame 23 and the load-bearing block 24 placed inside the pipe fitting 4, reducing safety hazards caused by shaking or displacement during construction.

[0084] The construction method for sewage pipe jacking construction equipment includes the following steps:

[0085] 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-shaped grooves 14 on the first rolling rollers 11 and the second rolling rollers 13 fit against 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. 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 to carry out the initial jacking operation.

[0086] S2. During the jacking process, the laser positioning receiver 20 cooperates with the corresponding laser positioning transmitter 18 to measure the trajectory of the jacking machine 3. When the jacking machine 3 deviates, the drive motor 9 drives the threaded rod 8 to rotate. The threaded rod 8 drives the first rolling roller 11 and the second rolling roller 13 on it to adjust their positions and adjust the direction of the jacking machine 3. Similarly, the subsequent pipe fittings 4 are adjusted in the same way later.

[0087] S3. Before the jacking operation, the screw 45 is rotated to drive the lifting plate 43 to move downwards. The moving wheel 44 drives the moving frame 23, the load-bearing block 24, and the connector tube 25 to move to the position near the port of the jacking machine 3. Then, the screw 45 is rotated in the opposite direction to store the moving wheel 44 in the storage groove 47, so that the moving frame 23 and the load-bearing block 24 are stably placed in the jacking machine 3. Then, when the output shaft of the hydraulic cylinder extends and pushes the jacking machine 3, one end of the connector tube 25 is inserted into the connector sleeve 35. During the insertion process, the inclined surface 34 cooperates with the conical groove 38, which allows the pin 30 to extend into the trapezoidal groove 31. The round head 33 at the top of the pin 30 cooperates with the trapezoidal groove 31 to drive the closing plate 27 to move to the left. The closing plate 27 is disengaged from the fixing ring 26. Then, the mud generated during the jacking operation of the jacking machine 3 is injected into the connector sleeve 35 through the connector tube 25 and discharged to the outside through the collection cylinder 36 and the discharge hose 37 to complete the discharge of mud.

[0088] S4. When it is necessary to add pipe fitting 4 to continue pushing, the output shaft of the hydraulic cylinder retracts and drives the connector sleeve 35 to move synchronously. The connector insertion tube 25 is disengaged from the connector sleeve 35, and the sealing plate 27 is re-attached to the fixing ring 26 under the action of the spring 29 to prevent mud from leaking from the connector insertion tube 25. Then, the pipe fitting 4 is hoisted between the first rolling roller 11 and the second rolling roller 13 by the crane. The pipe fitting 4 is pushed by the pushing mechanism 2. Before pushing, the moving frame 23 is moved into the pipe fitting 4. During the pushing process, the connector insertion tube 25 can be inserted into the connector sleeve 35, so that the mud can be discharged later.

[0089] However, as is well known to those skilled in the art, the working principles and wiring methods of the laser positioning transmitter 18, the laser positioning receiver 20, and the jacking machine 3 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0090] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0091] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sewage pipe network jacking construction device, comprising a pipe positioning assembly, wherein the pipe positioning assembly comprises a base plate (15) and a support plate (5) fixed to the bottom of the jacking well (1), characterized in that, Also includes: The pushing mechanism (2) is fixed to the top of the base plate (15) by bolts and consists of multiple hydraulic cylinders. Each hydraulic cylinder has a rubber plate (21) with a limit block (22) at its output end. The detection structure includes a laser positioning transmitter (18) disposed on the substrate (15) and a laser positioning receiver (20) disposed on the inner wall of the pusher (3). The laser positioning receiver (20) is fixed to the inner wall of the pusher (3) by a mounting bracket (19). The guide structure includes at least one support component disposed on the support plate (5), the support component including a support slide plate (7) driven to move by a threaded rod (8), the support slide plate (7) being provided with a first rolling roller (11) with an arc-shaped groove (14) and two second rolling rollers (13), the arc-shaped groove (14) forming a rolling fit with the outer wall of the pusher (3) or the pipe fitting (4); The laser positioning receiver (20) receives the laser beam from the laser positioning transmitter (18) in real time to detect the jacking trajectory. When a deviation is detected, the threaded rod (8) drives the support slide plate (7) to adjust the position of the first rolling roller (11) and the second rolling roller (13) to correct the jacking direction. The support assembly also includes: The threaded rod (8) is rotatably mounted in the movable groove (6) at the top of the support plate (5) via a bearing; The drive motor (9) is fixed to the side of the support plate (5) by the frame, and its output shaft is connected to the end of the threaded rod (8) by a coupling; The support slide plate (7) has a threaded hole at the bottom that mates with the threaded rod (8), and the top is equipped with a first rolling roller (11) and a second rolling roller (13) respectively through a first frame (10) and two second frames (12); the central axis of the first rolling roller (11) and the central axis of the two second rolling rollers (13) form an isosceles triangle, and the installation height of the first rolling roller (11) is higher than that of the second rolling roller (13); the limiting 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 limiting blocks (22) of each hydraulic cylinder are evenly distributed circumferentially; it also includes: The movable frame (23) is slidably set on the inner wall of the bottom of the pipe fitting (4), and a connector tube (25) is inserted through it. The construction device also includes: a joint sleeve (35), which is connected to the hydraulic cylinder output shaft of the jacking mechanism (2) via a connecting frame (41); The plug-in closed structure includes a fixing ring (26) and a closing plate (27) disposed in the connector plug tube (25). The closing plate (27) forms an elastic sealing fit with the fixing ring (26) through a sliding rod (28) and a spring (29). The bottom of the connector sleeve (35) is fixedly connected to a collection cylinder (36), and the bottom end of the collection cylinder (36) is fixedly connected to a slurry discharge hose (37). When the hydraulic cylinder pushes the jacking machine (3), the connector insertion tube (25) is inserted into the connector sleeve (35) and drives the sealing plate (27) to open, forming a mud discharge channel; the insertion sealing structure also includes: Multiple pins (30) seal the wall of the sliding through-connector tube (25), and the inner end of the pin is provided with a round head (33) that matches the trapezoidal groove (31) of the sealing plate (27). The retaining ring (39) is fixed to the inner wall of the connector sleeve (35), and its inner diameter matches the outer diameter of the connector insertion tube (25); The connector sleeve (35) has a tapered groove (38) at the insertion end that matches the outer end bevel (34) of the pin (30).

2. The sewage pipe jacking construction device according to claim 1, characterized in that, The outer wall of the connector tube (25) is provided with a rubber ring (40), the outer diameter of which is 0.5-1mm larger than the inner diameter of the connector sleeve (35) to form an interference fit.

3. The sewage pipe jacking construction device according to claim 2, characterized in that, Also includes: The load-bearing block (24) is fixed on the side of the movable frame (23) away from the joint sleeve (35), and its bottom is provided with a storage groove (47) with a lifting plate (43).

4. The sewage pipe jacking construction device according to claim 3, characterized in that, Also includes: The lead screw (45) is threaded through the load-bearing block (24), and its lower end is hinged to the lifting plate (43); Multiple casters (44) are installed at the bottom of the lifting plate (43); The lead screw (45) can drive the moving wheel (44) to move down to contact the inner wall of the pipe fitting (4) or move up to be stored in the storage groove (47).

5. A construction method for a sewage pipe jacking construction device, applied to the sewage pipe jacking construction device described in claim 4, characterized in that, Includes the following steps: S1. Using a crane, the jacking machine (3) is placed on multiple first rolling rollers (11), and the second rolling rollers (13) on both sides are limited. Their arc-shaped grooves (14) fit against the outer wall of the jacking machine (3) to ensure stable movement. The output shaft of the hydraulic cylinder pushes the jacking machine (3) forward through the rubber plate (21). Multiple sets of limit blocks (22) work together to limit the movement. The jacking mechanism (2) pushes the jacking machine (3) forward as a whole to complete the initial jacking operation. S2. During the jacking process, the laser positioning instrument receiver (20) and transmitter (18) work together to monitor the trajectory of the jacking machine (3). When the deviation occurs, the drive motor (9) drives the threaded rod (8) to rotate, which in turn drives the first rolling roller (11) and the second rolling roller (13) to adjust their positions and correct the direction of the jacking machine (3). The subsequent pipe fittings (4) are also adjusted in the same way. S3. Before the jacking, rotate the screw (45) to lower the lifting plate (43). The moving wheel (44) drives the moving frame (23), the load-bearing block (24), and the connector tube (25) to move to the vicinity of the jacking machine (3) port. Rotate the screw (45) in the opposite direction to retract the moving wheel (44) so ​​that the moving frame (23) is stably placed inside the jacking machine (3). When the hydraulic cylinder output shaft extends to push the jacking machine (3), the connector tube (25) is inserted into the connector sleeve (35). The inclined surface (34) cooperates with the conical groove (38) to make the pin (30) extend into the trapezoidal groove (31). The round head (33) drives the closing plate (27) to move to the left and separate from the fixed ring (26). The jacking mud is discharged through the connector tube (25), the connector sleeve (35), the collection cylinder (36), and the slurry discharge hose (37). S4. When the pipe fitting (4) needs to be installed, the hydraulic cylinder output shaft retracts and drives the connector sleeve (35) to move backward, the connector insertion tube (25) disengages, and the sealing plate (27) resets under the action of the spring (29) and fits with the fixing ring (26) to prevent mud leakage; then the pipe fitting (4) is hoisted between the first and second rolling rollers, and the jacking mechanism (2) pushes the pipe fitting (4) forward. Before jacking, the moving frame (23) is moved into the pipe fitting (4). When jacking, the connector insertion tube (25) is inserted into the connector sleeve (35) and mud discharge continues.

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