Steel cylinder type pipe jacking machine with front eave supporting function

Abstract

The utility model discloses a steel cylinder type pipe jacking machine with a front eave supporting function, which comprises a pipe jacking machine main body, the front end of the pipe jacking machine main body is connected with a steel cylinder, the pipe jacking machine main body is provided with a fixing ring, and the rear end of the steel cylinder is rotatably connected with the fixing ring; a hydraulic pump, an electromagnetic valve and a deviation rectifying assembly are arranged between the inner side of the steel cylinder and the pipe jacking body. The four deviation rectifying assemblies are arranged on the top, the bottom, the left side and the right side of the inner side of the steel cylinder correspondingly. The hydraulic pump is connected with the deviation rectifying assemblies through the high-pressure oil pipes, and the electromagnetic valves are installed on the high-pressure oil pipes connected with the deviation rectifying assemblies and used for driving the deviation rectifying assemblies to rectify deviation of the steel cylinder. The front eave supporting steel cylinder device is arranged at the front end of the pipe jacking machine, the steel cylinder can support a soil body in all directions, the upper portion of a tunnel face is prevented from collapsing, soil, sand, stones, water and the like are effectively prevented from entering a working pipe, and safety in the construction process is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking machine technology, specifically a steel cylinder pipe jacking machine with front eaves support function. Background Technology

[0002] In urban underground pipeline construction, pipe jacking machines are the core equipment for trenchless pipeline laying. However, traditional pipe jacking machines often face the risk of upper collapse during operation, especially at the tunnel face. This risk is particularly prominent in municipal pipeline construction scenarios. For example, in some pipe jacking projects, the road surface above the pipe jacking section experiences heavy traffic, the top of the pipe is close to the road surface, and the stratum for pipe jacking is quicksand mixed with river pebbles of varying sizes. After the pipe jacking is excavated, the top collapse is severe, and with continuous high-speed traffic on the road, it can easily cause road subsidence, resulting in serious traffic accidents and injuries or fatalities to workers inside the pipe jacking area.

[0003] Therefore, some pipe jacking machines with protective mechanisms have emerged in the market. For example, the utility model disclosed in CN222436358U is a pipe jacking machine with protective functions for early tunnel support, including a pipe jacking machine and a top plate, with the top plate positioned at the top of the pipe jacking machine; connecting frames are provided on both sides of the bottom of the top plate. This type of support pipe jacking machine facilitates the cooperation of the top plate and elastic support components to provide elastic protection for the top position of the pipe jacking machine, shielding it from falling rocks inside the tunnel, preventing damage to the pipe jacking machine from falling rocks, and ensuring the construction progress as well as the safety of equipment and personnel.

[0004] However, this type of pipe jacking machine is mainly used in tunnel applications, which differs significantly from municipal pipeline construction. Municipal pipeline construction not only faces complex and variable geological conditions but also the additional pressure from road traffic. In areas where large machinery operations are prohibited, such as historical preservation zones and densely populated traffic areas, the cutterhead of the pipe jacking machine is often removed, and workers manually excavate inside the machine. This effectively reduces noise and vibration, but the risk of face collapse is greatly increased after the cutterhead is removed, seriously threatening the lives and health of workers. Therefore, there is an urgent need for a pipe jacking machine that can effectively solve the risk of face collapse in municipal pipeline construction. Utility Model Content

[0005] The purpose of this utility model is to provide a steel cylinder pipe jacking machine with front eaves support function, which aims to improve the problem that the working face of the existing pipe jacking machine is prone to collapse during construction, resulting in high construction safety risks.

[0006] This utility model is implemented as follows:

[0007] A steel cylinder-type pipe jacking machine with front eaves support function includes a pipe jacking machine body, a steel cylinder connected to the front end of the pipe jacking machine body, a fixing ring on the pipe jacking machine body, and a rotatable connection between the rear end of the steel cylinder and the fixing ring; a hydraulic pump, a solenoid valve, and a correction assembly are provided between the inner side of the steel cylinder and the pipe jacking machine body; four correction assemblies are provided, respectively located at the top and bottom and left and right sides of the inner side of the steel cylinder; the hydraulic pump is connected to the correction assembly through a high-pressure oil pipe, and the solenoid valve is installed on the high-pressure oil pipe connected to each correction assembly, used to correct the steel cylinder by driving the correction assembly.

[0008] Preferably, multiple pressure plates are evenly provided on the outer side of the main body of the pipe jacking machine near the front end, and the pressure plates are used to connect the correction assembly.

[0009] Preferably, the front end of the steel cylinder is provided with a cutting edge, and the rear end of the inner side of the steel cylinder is provided with multiple pairs of ear plates, and the ear plates are provided with a through hole in the middle.

[0010] Preferably, the fixing ring is provided with a plurality of countersunk holes evenly distributed on its surface, and the fixing ring is provided with a plurality of adapter plates evenly distributed on its side surface. The adapter plates are provided with adapter holes in the center, and the fixing ring is fixed to the main body of the pipe jacking machine by bolts.

[0011] Preferably, the correction assembly includes a hydraulic cylinder, a fixed cover, and a ball joint; the bottom end of the hydraulic cylinder is provided with a telescopic rod, the bottom end of the telescopic rod is provided with a universal ball joint, and the fixed cover is sleeved on the telescopic rod, the bottom end of the fixed cover is connected to the ball joint, and the fixed cover cooperates with the ball joint to wrap around the universal ball joint.

[0012] Preferably, the top of the hydraulic cylinder is provided with a fixing plate, and the fixing plate is provided with multiple fixing holes for connecting the hydraulic cylinder to the steel cylinder; the side of the hydraulic cylinder is provided with a pipe joint for connecting to a high-pressure oil pipe.

[0013] Preferably, the fixing cover has a sleeve hole in the middle and a connecting ring at the bottom.

[0014] Preferably, the ball joint seat has a ball groove at its top end, and both the top and bottom ends of the ball joint seat are provided with mounting rings. The mounting ring at the top end of the ball joint seat is connected to the fixing cover by bolts, and the mounting ring at the bottom end of the ball joint seat is connected to the main body of the pipe jacking machine.

[0015] Preferably, it also includes a slurry and earth pressure balance control system, which is located inside the main body of the pipe jacking machine. The slurry and earth pressure balance control system integrates a central control module, which is connected to multiple pressure sensors, and the multiple pressure sensors are integrated at the front end of the steel cylinder.

[0016] Preferably, the central control module is connected to a laser guidance module, which includes a gyroscope and a laser emitter. The gyroscope is installed at the front end of the pipe jacking machine body, and the laser emitter is installed at the rear end of the pipe jacking machine body, for real-time monitoring of the axial deviation of the pipe jacking machine and feedback to the correction component.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by installing a front-end support steel cylinder device at the front end of the pipe jacking machine, provides all-around support to the soil, preventing the upper part of the tunnel face from collapsing and effectively preventing soil, sand, rocks, water, etc., from entering the working pipe, thus significantly improving safety during construction. The four-directional correction components inside the steel cylinder can precisely control the jacking axis of the pipe jacking machine, keeping elevation and horizontal deviations within a small range and ensuring the accuracy of the pipe jacking construction.

[0019] 2. The slurry and earth pressure balance control system of this utility model can adjust parameters in real time according to different geological conditions and construction situations, further ensuring the safety and stability of construction.

[0020] 3. This utility model, by setting up a gyroscope and a laser emitter, can monitor the axial deviation of the pipe jacking machine in real time and feed it back to the correction component through the cooperation of the two. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model from a front-end oblique downward view;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from a rear-end oblique downward view;

[0023] Figure 3 This is a schematic diagram of the main structure of the pipe jacking machine of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the steel cylinder of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the fixing ring of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the correction component of this utility model;

[0027] Figure 7 This is a structural block diagram of the steel cylinder of this utility model;

[0028] Figure 8 This is a structural block diagram of the internal part of the main body of the pipe jacking machine of this utility model;

[0029] Figure 9This is a structural block diagram of the cement and earth pressure balance control system of this utility model;

[0030] Figure 10 This is a structural block diagram of the laser wire module of this utility model.

[0031] In the diagram: 1. Main body of the pipe jacking machine; 11. Pressure plate; 2. Steel cylinder; 21. Ear plate; 22. Perforation; 23. Cutting edge; 3. Fixing ring; 31. Adapter plate; 32. Countersunk hole; 33. Adapter hole; 4. Correction assembly; 41. Hydraulic cylinder; 411. Fixing plate; 412. Fixing hole; 413. Pipe joint; 414. Telescopic rod; 415. Universal ball joint; 42. Fixing cover; 421. Sleeve hole; 422. Connecting ring; 43. Ball joint seat; 431. Ball groove; 432. Mounting ring. Detailed Implementation

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0034] Example 1

[0035] like Figure 1 , Figure 2 and Figure 7As shown, a steel cylinder-type pipe jacking machine with front support function includes a main body 1. A steel cylinder 2 is connected to the front end of the main body 1. The pipe jacking machine, in conjunction with the steel cylinder 2, facilitates the insertion of the steel cylinder 2 into the soil at the working face under the hydraulic drive system of the main body 1, thereby providing support for the soil at the working face. The steel cylinder 2 is 1.8 meters long, 2.5 cm thick, and has an inner diameter of 2.16 meters. The steel cylinder 2 is made of Q345B high-strength steel. A fixing ring 3 is provided on the main body 1, and the rear end of the steel cylinder 2 is rotatably connected to the fixing ring 3. The fixing ring 3 is installed on the main body 1 to facilitate the rotatable connection between the steel cylinder and the fixing ring 3, which can be used for deviation correction by the drive of the deviation correction device. A hydraulic pump, solenoid valves, and a correction assembly 4 are installed between the inner side of the steel cylinder 2 and the main body of the jacking machine. Four correction assemblies 4 are located at the top, bottom, and left and right sides of the inner side of the steel cylinder 2. This structure allows for correction from four directions. The hydraulic pump, in conjunction with the solenoid valves, facilitates control of the correction device. The control systems of the hydraulic pump and solenoid valves are connected to the control system of the main body of the jacking machine, allowing for control of their operation. The hydraulic pump is connected to the correction assembly 4 via a high-pressure oil pipe. Solenoid valves are installed on the high-pressure oil pipe connected to each correction assembly 4, used to correct the steel cylinder 2 by driving the correction assembly 4. Grouting holes are evenly distributed along the circumference of the outer wall of the pipe in the main body of the jacking machine, with a spacing of 50-100 cm between adjacent holes. The main body of the jacking machine is equipped with a mud mixer, which is connected to the grouting holes via a grout delivery pipe. The grouting pressure is controlled at 0.3 MPa ± 0.05 MPa.

[0036] like Figure 3 As shown, multiple pressure plates 11 are evenly arranged on the outer side of the main body 1 of the pipe jacking machine near the front end. The pressure plates 11 are used to connect the correction component 4. The pressure plates 11 are easy to cooperate with the correction component 4, and the output end of the correction component 4 can be pressed against the pressure plate 11. The pressure plates 11 improve the compressive strength of the main body 1 of the pipe jacking machine and prevent the main body 1 of the pipe jacking machine from being flattened.

[0037] like Figure 4 As shown, the front end of the steel cylinder 2 is provided with a cutting edge 23, which facilitates the smooth insertion of the steel cylinder 2 into the soil at the working face. Furthermore, the inner rear end of the steel cylinder 2 is provided with multiple pairs of ear plates 21, each with a through hole 22 in the center. The ear plates 21, in conjunction with the through holes 22, facilitate the rotational connection between the steel cylinder 2 and the fixing ring 3.

[0038] like Figure 5As shown, the fixing ring 3 has multiple countersunk holes 32 evenly distributed on it, which facilitate the fixing of the entire fixing ring 3 with bolts. The fixing ring 3 also has multiple adapter plates 31 evenly distributed on its side, each adapter plate 31 having an adapter hole 33 in its center. The adapter plates 31 and adapter holes 33 facilitate insertion between each pair of ear plates 21, allowing for a rotatable connection between the steel cylinder 2 and the fixing ring 3. The fixing ring 3 is fixed to the main body 1 of the pipe jacking machine with bolts.

[0039] like Figure 6 As shown, the correction assembly 4 includes a hydraulic cylinder 41, a fixed cover 42, and a ball joint 43. The bottom end of the hydraulic cylinder 41 is equipped with a telescopic rod 414. The extension and retraction of the telescopic rod 414 allows the hydraulic cylinder 41 to drive the main body 1 of the pipe jacking machine to correct its course, preventing the main machine from deviating from the designated path. The bottom end of the telescopic rod 414 is equipped with a universal ball joint 415, and the fixed cover 42 is fitted onto the telescopic rod 414. The bottom end of the fixed cover 42 is connected to the ball joint 43. The fixed cover 42, in conjunction with the ball joint 43, encloses the universal ball joint 415. This structure facilitates the fixing of the ball joint 43 onto the main body 1 of the pipe jacking machine, thereby allowing the output end of the hydraulic cylinder 41 to be rotatably connected to the main body 1 of the pipe jacking machine.

[0040] The hydraulic cylinder 41 has a fixing plate 411 at its top, with multiple fixing holes 412 for connecting the hydraulic cylinder 41 to the steel cylinder 2. The hydraulic cylinder 41 also has a pipe connector 413 on its side for connecting to a high-pressure oil pipe. The fixing cover 42 has a sleeve hole 421 in its middle for easy fitting onto the telescopic rod 414. The fixing cover 42 also has a connecting ring 422 at its bottom for easy connection to the ball joint 43. The ball joint 43 has a ball groove 431 at its top, and mounting rings 432 at both its top and bottom. The mounting ring 432 at the top of the ball joint 43 is bolted to the fixing cover 42, and the mounting ring 432 at the bottom of the ball joint 43 is connected to the main body 1 of the pipe jacking machine, ensuring sufficient stability for the ball joint 43.

[0041] Example 2

[0042] like Figure 1 , Figure 2 and Figure 7As shown, a steel cylinder-type pipe jacking machine with front support function includes a main body 1. A steel cylinder 2 is connected to the front end of the main body 1. The pipe jacking machine, in conjunction with the steel cylinder 2, facilitates the insertion of the steel cylinder 2 into the soil at the working face under the hydraulic drive system of the main body 1, thereby providing support for the soil at the working face. The steel cylinder 2 is 1.8 meters long, 2.5 cm thick, and has an inner diameter of 2.16 meters. The steel cylinder 2 is made of Q345B high-strength steel. A fixing ring 3 is provided on the main body 1, and the rear end of the steel cylinder 2 is rotatably connected to the fixing ring 3. The fixing ring 3 is installed on the main body 1 to facilitate the rotatable connection between the steel cylinder and the fixing ring 3, which can be used for deviation correction by the drive of the deviation correction device. A hydraulic pump, solenoid valves, and a correction assembly 4 are installed between the inner side of the steel cylinder 2 and the main body of the jacking machine. Four correction assemblies 4 are located at the top, bottom, and left and right sides of the inner side of the steel cylinder 2. This structure allows for correction from four directions. The hydraulic pump, in conjunction with the solenoid valves, facilitates control of the correction device. The control systems of the hydraulic pump and solenoid valves are connected to the control system of the main body of the jacking machine, allowing for control of their operation. The hydraulic pump is connected to the correction assembly 4 via a high-pressure oil pipe. Solenoid valves are installed on the high-pressure oil pipe connected to each correction assembly 4, used to correct the steel cylinder 2 by driving the correction assembly 4. Grouting holes are evenly distributed along the circumference of the outer wall of the pipe in the main body of the jacking machine, with a spacing of 50-100 cm between adjacent holes. The main body of the jacking machine is equipped with a mud mixer, which is connected to the grouting holes via a grout delivery pipe. The grouting pressure is controlled at 0.3 MPa ± 0.05 MPa.

[0043] like Figure 3 As shown, multiple pressure plates 11 are evenly arranged on the outer side of the main body 1 of the pipe jacking machine near the front end. The pressure plates 11 are used to connect the correction component 4. The pressure plates 11 are easy to cooperate with the correction component 4, and the output end of the correction component 4 can be pressed against the pressure plate 11. The pressure plates 11 improve the compressive strength of the main body 1 of the pipe jacking machine and prevent the main body 1 of the pipe jacking machine from being flattened.

[0044] like Figure 4 As shown, the front end of the steel cylinder 2 is provided with a cutting edge 23, which facilitates the smooth insertion of the steel cylinder 2 into the soil at the working face. Furthermore, the inner rear end of the steel cylinder 2 is provided with multiple pairs of ear plates 21, each with a through hole 22 in the center. The ear plates 21, in conjunction with the through holes 22, facilitate the rotational connection between the steel cylinder 2 and the fixing ring 3.

[0045] like Figure 5As shown, the fixing ring 3 has multiple countersunk holes 32 evenly distributed on it, which facilitate the fixing of the entire fixing ring 3 with bolts. The fixing ring 3 also has multiple adapter plates 31 evenly distributed on its side, each adapter plate 31 having an adapter hole 33 in its center. The adapter plates 31 and adapter holes 33 facilitate insertion between each pair of ear plates 21, allowing for a rotatable connection between the steel cylinder 2 and the fixing ring 3. The fixing ring 3 is fixed to the main body 1 of the pipe jacking machine with bolts.

[0046] like Figure 6 As shown, the correction assembly 4 includes a hydraulic cylinder 41, a fixed cover 42, and a ball joint 43. The bottom end of the hydraulic cylinder 41 is equipped with a telescopic rod 414. The extension and retraction of the telescopic rod 414 allows the hydraulic cylinder 41 to drive the main body 1 of the pipe jacking machine to correct its course, preventing the main machine from deviating from the designated path. The bottom end of the telescopic rod 414 is equipped with a universal ball joint 415, and the fixed cover 42 is fitted onto the telescopic rod 414. The bottom end of the fixed cover 42 is connected to the ball joint 43. The fixed cover 42, in conjunction with the ball joint 43, encloses the universal ball joint 415. This structure facilitates the fixing of the ball joint 43 onto the main body 1 of the pipe jacking machine, thereby allowing the output end of the hydraulic cylinder 41 to be rotatably connected to the main body 1 of the pipe jacking machine.

[0047] The hydraulic cylinder 41 has a fixing plate 411 at its top, with multiple fixing holes 412 for connecting the hydraulic cylinder 41 to the steel cylinder 2. The hydraulic cylinder 41 also has a pipe connector 413 on its side for connecting to a high-pressure oil pipe. The fixing cover 42 has a sleeve hole 421 in its middle for easy fitting onto the telescopic rod 414. The fixing cover 42 also has a connecting ring 422 at its bottom for easy connection to the ball joint 43. The ball joint 43 has a ball groove 431 at its top, and mounting rings 432 at both its top and bottom. The mounting ring 432 at the top of the ball joint 43 is bolted to the fixing cover 42, and the mounting ring 432 at the bottom of the ball joint 43 is connected to the main body 1 of the pipe jacking machine, ensuring sufficient stability for the ball joint 43.

[0048] like Figure 8 and Figure 9 As shown, it also includes a slurry and earth pressure balance control system, which is installed inside the main body 1 of the pipe jacking machine. The slurry and earth pressure balance control system integrates a central control module, which is connected to multiple pressure sensors. The multiple pressure sensors are integrated at the front end of the steel cylinder 2. The pressure sensors monitor the earth pressure and water pressure in real time. The central control module adjusts the jacking speed and grouting parameters according to the monitoring data to ensure the stability of the construction process and avoid accidents.

[0049] Example 3

[0050] like Figure 1 , Figure 2 and Figure 7As shown, a steel cylinder-type pipe jacking machine with front support function includes a main body 1. A steel cylinder 2 is connected to the front end of the main body 1. The pipe jacking machine, in conjunction with the steel cylinder 2, facilitates the insertion of the steel cylinder 2 into the soil at the working face under the hydraulic drive system of the main body 1, thereby providing support for the soil at the working face. The steel cylinder 2 is 1.8 meters long, 2.5 cm thick, and has an inner diameter of 2.16 meters. The steel cylinder 2 is made of Q345B high-strength steel. A fixing ring 3 is provided on the main body 1, and the rear end of the steel cylinder 2 is rotatably connected to the fixing ring 3. The fixing ring 3 is installed on the main body 1 to facilitate the rotatable connection between the steel cylinder and the fixing ring 3, which can be used for deviation correction by the drive of the deviation correction device. A hydraulic pump, solenoid valves, and a correction assembly 4 are installed between the inner side of the steel cylinder 2 and the main body of the jacking machine. Four correction assemblies 4 are located at the top, bottom, and left and right sides of the inner side of the steel cylinder 2. This structure allows for correction from four directions. The hydraulic pump, in conjunction with the solenoid valves, facilitates control of the correction device. The control systems of the hydraulic pump and solenoid valves are connected to the control system of the main body of the jacking machine, allowing for control of their operation. The hydraulic pump is connected to the correction assembly 4 via a high-pressure oil pipe. Solenoid valves are installed on the high-pressure oil pipe connected to each correction assembly 4, used to correct the steel cylinder 2 by driving the correction assembly 4. Grouting holes are evenly distributed along the circumference of the outer wall of the pipe in the main body of the jacking machine, with a spacing of 50-100 cm between adjacent holes. The main body of the jacking machine is equipped with a mud mixer, which is connected to the grouting holes via a grout delivery pipe. The grouting pressure is controlled at 0.3 MPa ± 0.05 MPa.

[0051] like Figure 3 As shown, multiple pressure plates 11 are evenly arranged on the outer side of the main body 1 of the pipe jacking machine near the front end. The pressure plates 11 are used to connect the correction component 4. The pressure plates 11 are easy to cooperate with the correction component 4, and the output end of the correction component 4 can be pressed against the pressure plate 11. The pressure plates 11 improve the compressive strength of the main body 1 of the pipe jacking machine and prevent the main body 1 of the pipe jacking machine from being flattened.

[0052] like Figure 4 As shown, the front end of the steel cylinder 2 is provided with a cutting edge 23, which facilitates the smooth insertion of the steel cylinder 2 into the soil at the working face. Furthermore, the inner rear end of the steel cylinder 2 is provided with multiple pairs of ear plates 21, each with a through hole 22 in the center. The ear plates 21, in conjunction with the through holes 22, facilitate the rotational connection between the steel cylinder 2 and the fixing ring 3.

[0053] like Figure 5As shown, the fixing ring 3 has multiple countersunk holes 32 evenly distributed on it, which facilitate the fixing of the entire fixing ring 3 with bolts. The fixing ring 3 also has multiple adapter plates 31 evenly distributed on its side, each adapter plate 31 having an adapter hole 33 in its center. The adapter plates 31 and adapter holes 33 facilitate insertion between each pair of ear plates 21, allowing for a rotatable connection between the steel cylinder 2 and the fixing ring 3. The fixing ring 3 is fixed to the main body 1 of the pipe jacking machine with bolts.

[0054] like Figure 6 As shown, the correction assembly 4 includes a hydraulic cylinder 41, a fixed cover 42, and a ball joint 43. The bottom end of the hydraulic cylinder 41 is equipped with a telescopic rod 414. The extension and retraction of the telescopic rod 414 allows the hydraulic cylinder 41 to drive the main body 1 of the pipe jacking machine to correct its course, preventing the main machine from deviating from the designated path. The bottom end of the telescopic rod 414 is equipped with a universal ball joint 415, and the fixed cover 42 is fitted onto the telescopic rod 414. The bottom end of the fixed cover 42 is connected to the ball joint 43. The fixed cover 42, in conjunction with the ball joint 43, encloses the universal ball joint 415. This structure facilitates the fixing of the ball joint 43 onto the main body 1 of the pipe jacking machine, thereby allowing the output end of the hydraulic cylinder 41 to be rotatably connected to the main body 1 of the pipe jacking machine.

[0055] The hydraulic cylinder 41 has a fixing plate 411 at its top, with multiple fixing holes 412 for connecting the hydraulic cylinder 41 to the steel cylinder 2. The hydraulic cylinder 41 also has a pipe connector 413 on its side for connecting to a high-pressure oil pipe. The fixing cover 42 has a sleeve hole 421 in its middle for easy fitting onto the telescopic rod 414. The fixing cover 42 also has a connecting ring 422 at its bottom for easy connection to the ball joint 43. The ball joint 43 has a ball groove 431 at its top, and mounting rings 432 at both its top and bottom. The mounting ring 432 at the top of the ball joint 43 is bolted to the fixing cover 42, and the mounting ring 432 at the bottom of the ball joint 43 is connected to the main body 1 of the pipe jacking machine, ensuring sufficient stability for the ball joint 43.

[0056] like Figure 8 and Figure 9 As shown, it also includes a slurry and earth pressure balance control system, which is installed inside the main body 1 of the pipe jacking machine. The slurry and earth pressure balance control system integrates a central control module, which is connected to multiple pressure sensors. The multiple pressure sensors are integrated at the front end of the steel cylinder 2. The pressure sensors monitor the earth pressure and water pressure in real time. The central control module adjusts the jacking speed and grouting parameters according to the monitoring data to ensure the stability of the construction process and avoid accidents.

[0057] like Figure 9 As shown, the central control module is connected to a laser guidance module, which includes a gyroscope and a laser emitter. The gyroscope is installed at the front end of the main body 1 of the pipe jacking machine, and the laser emitter is installed at the rear end of the main body 1 of the pipe jacking machine. It is used to monitor the axis deviation of the pipe jacking machine in real time and feed it back to the correction component 4.

[0058] Working Principle: During use, the correction component 4, along with the high-pressure oil pipe, solenoid valve, and hydraulic pump, is installed inside the steel cylinder 2. The steel cylinder 2 is then installed at the front end of the pipe jacking machine. The fixing ring 3 is fixed to the pipe jacking machine with bolts, ensuring its stability. The steel cylinder 2 and fixing ring 3 are then rotatably connected. During construction, the hydraulic drive system of the pipe jacking machine body 1 drives the steel cylinder 2 into the soil at the tunnel face. Workers then manually excavate the tunnel face, and the steel cylinder 2 effectively supports the tunnel face, preventing collapse. When the pipe jacking machine body 1 deviates, the correction component 4 is controlled to extend and retract to correct the deviation. For example, elevation adjustment: the pitch angle of the pipe jacking machine is adjusted and elevation deviation is corrected by synchronously extending and retracting the telescopic rods 414 of the top and bottom hydraulic cylinders 41 (e.g., the telescopic rod 414 of the top hydraulic cylinder 41 extends and the telescopic rod 414 of the bottom hydraulic cylinder 41 shortens, or vice versa). Horizontal adjustment: the horizontal deflection angle of the pipe jacking machine is adjusted and horizontal deviation is corrected by synchronously extending and retracting the telescopic rods 414 of the left and right hydraulic cylinders 41 (e.g., the telescopic rod 414 of the left hydraulic cylinder 41 extends and the telescopic rod 414 of the right hydraulic cylinder 41 shortens, or vice versa). The slurry and earth pressure balance control system adjusts the jacking speed and grouting parameters based on monitoring data to ensure the stability of the construction process and prevent accidents.

[0059] In summary, compared with the prior art, this application, by setting a front-end support steel cylinder 2 device at the front end of the pipe jacking machine, enables the steel cylinder 2 to support the soil in all directions, preventing the upper part of the tunnel face from collapsing and effectively preventing soil, sand, rocks, water, etc. from entering the working pipe, thus greatly improving the safety during construction. The four-directional correction components 4 installed inside the steel cylinder 2 can precisely control the jacking axis of the pipe jacking machine, keeping the elevation and horizontal deviations within a small range and ensuring the accuracy of the pipe jacking construction. The above are merely preferred embodiments of this utility model and are not intended to limit the utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel cylinder type pipe jacking machine with front eave support function, comprising a pipe jacking machine main body (1), characterized in that, The front end of the pipe jacking machine body (1) is connected with a steel cylinder (2), the pipe jacking machine body (1) is provided with a fixing ring (3), the rear end of the steel cylinder (2) and the fixing ring (3) are rotationally connected, the inner side of the steel cylinder (2) and the pipe jacking body are provided with a hydraulic pump, a solenoid valve and a deviation rectifying assembly (4), the deviation rectifying assembly (4) is provided with four, the four deviation rectifying assemblies (4) are respectively arranged at the top and bottom and the left and right sides of the inner side of the steel cylinder (2), the hydraulic pump is connected with the deviation rectifying assembly (4) through a high-pressure oil pipe, the solenoid valve is installed on the high-pressure oil pipe connected with each deviation rectifying assembly (4), and the solenoid valve is used for rectifying the deviation of the steel cylinder (2) by driving the deviation rectifying assembly (4).

2. The steel cylinder type pipe jacking machine with front cornice support function according to claim 1, characterized in that, Multiple pressure bearing plates (11) are uniformly arranged on the outer side of the pipe jacking machine body (1) near the front end, and the pressure bearing plates (11) are used for connecting the deviation rectifying assemblies (4).

3. The steel cylinder type pipe jacking machine with front cornice support function according to claim 1, characterized in that, The front end of the steel cylinder (2) is provided with a blade edge (23), and the rear end of the inner side of the steel cylinder (2) is provided with multiple pairs of ear plates (21), and the middle part of the ear plate (21) is provided with a perforation (22).

4. The steel cylinder type pipe jacking machine with front cornice support function according to claim 1, characterized in that, Multiple counterbores (32) are uniformly arranged on the fixing ring (3), and multiple adapter plates (31) are uniformly arranged on the side surface of the fixing ring (3), the middle part of the adapter plate (31) is provided with an adapter hole (33), and the fixing ring (3) is fixed on the pipe jacking machine body (1) through bolts.

5. The steel cylinder type pipe jacking machine with front cornice support function according to claim 1, characterized in that, The deviation rectifying assembly (4) comprises a hydraulic cylinder (41), a fixing cover (42) and a ball joint seat (43), the bottom end of the hydraulic cylinder (41) is provided with a telescopic rod (414), the bottom end of the telescopic rod (414) is provided with a universal ball head (415), the fixing cover (42) is sleeved on the telescopic rod (414), the bottom end of the fixing cover (42) is connected with the ball joint seat (43), and the fixing cover (42) and the ball joint seat (43) wrap the universal ball head (415).

6. The steel cylinder type pipe jacking machine with front cornice support function according to claim 5, characterized in that, The top end of the hydraulic cylinder (41) is provided with a fixing plate (411), multiple fixing holes (412) are arranged on the fixing plate (411) and used for connecting the hydraulic cylinder (41) and the steel cylinder (2), and a pipe joint (413) is arranged on the side surface of the hydraulic cylinder (41) and used for connecting the high-pressure oil pipe.

7. The steel cylinder type pipe jacking machine with front cornice support function according to claim 5, characterized in that, The middle part of the fixing cover (42) is provided with a sleeve hole (421), and the bottom part of the fixing cover (42) is provided with a connecting ring (422).

8. The steel cylinder type pipe jacking machine with front cornice support function according to claim 7, characterized in that, The top end of the ball joint seat (43) is provided with a ball groove (431), the top end and the bottom end of the ball joint seat (43) are provided with mounting rings (432), the mounting ring (432) at the top end of the ball joint seat (43) is connected with the fixing cover (42) through bolts, and the mounting ring (432) at the bottom end of the ball joint seat (43) is connected with the pipe jacking machine body (1).

9. The steel cylinder type pipe jacking machine with front lintel support function according to any one of claims 1-8, characterized in that, The mud and soil pressure balance control system is arranged in the pipe jacking machine body (1), the mud and soil pressure balance control system is integrated with a central control module, multiple pressure sensors are connected with the central control module, and the multiple pressure sensors are integrated at the front end of the steel cylinder (2).

10. The steel cylinder type pipe jacking machine with front cornice support function according to claim 9, characterized in that, The central control module is connected with a laser guiding module, the laser guiding module comprises a gyroscope and a laser emitter, the gyroscope is installed at the front end of the pipe jacking machine body (1), and the laser emitter is installed at the rear end of the pipe jacking machine body (1), so as to monitor the axis deviation of the pipe jacking machine in real time and feed back to the deviation rectifying assembly (4).

Images