Slurry circulation equipment for pipe jacking construction

By designing a combination of hydraulic cylinders, drive motors, and sludge pumps within the frame, the problem of inconvenient sludge extraction during pipe jacking construction was solved, improving construction efficiency and quality while reducing energy consumption and the risk of blockage.

CN224120760UActive Publication Date: 2026-04-14MEISHAN ENVIRONMENTAL INVESTMENT CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MEISHAN ENVIRONMENTAL INVESTMENT CONSTR ENG CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing pipe jacking equipment is not convenient for timely mud extraction, which affects the construction progress and quality.

Method used

A sludge circulation device was designed, comprising a frame, a jacking pipe, a hydraulic cylinder, a drive motor, an agitator, and a sludge pump. The hydraulic cylinder pushes the support plate into the jacking pipe, the drive motor drives the agitator to stir the sludge, and the sludge pump extracts the sludge. The device structure was optimized to improve extraction efficiency and stability.

Benefits of technology

It improved mud extraction efficiency, reduced energy consumption, reduced the risk of pipe jacking blockage, and ensured project progress and quality.

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Abstract

The utility model relates to the technical field of pipe-jacking construction, in particular to slurry circulation equipment for pipe-jacking construction, which is characterized in that a bearing plate is slidably connected to the inner side of a frame body, a hydraulic oil cylinder is fixedly connected to one side of the outer wall of the frame body through bolts, and an output shaft of the hydraulic oil cylinder penetrates through the side wall of the frame body and is fixedly connected with one side of the bearing plate; the inner side of the jacking pipe is rotatably connected with a stirring rod, one side of the bearing plate is fixedly connected with a driving motor through a bolt, one end of the stirring rod penetrates through the bearing plate and is in transmission connection with an output shaft of the driving motor, and the two sides of the inner side of the jacking pipe are fixedly connected with suction pipes. Rapid and accurate positioning and insertion of the jacking pipe are achieved, and errors and time consumption possibly caused by a traditional manual or semi-automatic mode are reduced; and through the design that the driving motor drives the stirring rod, the problem that the slurry is too thick and is not easy to extract is effectively solved, so that the slurry is looser, and the working efficiency of the sludge pump is improved.
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Description

Technical Field

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

[0002] Pipe jacking is a trenchless technology widely used in urban underground pipeline construction. It avoids damage to existing surface infrastructure by advancing pipes or tunnels underground, thus playing a vital role in municipal, telecommunications, power, and water conservancy projects. As a crucial step in underground pipeline construction, its efficiency and quality directly impact the overall project schedule and safety. Particularly in the core process of slurry circulation, existing equipment and technologies are gradually revealing some limitations and problems.

[0003] The utility model patent CN216242641U discloses a pipe jacking device for water conservancy engineering pipe jacking construction. Although the device achieves the purpose of facilitating the installation and separation of the moving platform and the mounting plate by setting an adjustment mechanism, it also reduces energy consumption and speeds up the work progress.

[0004] However, existing equipment still has the problem of inconvenient extraction of slurry from the pipe jacking system. If the slurry is not extracted in a timely manner, it will seriously affect the subsequent use of the pipe jacking system, thereby impacting the progress and quality of the entire project. Therefore, in response to the many shortcomings of existing technology, we urgently need an innovative slurry circulation system to solve these problems. This new technology or equipment should significantly improve construction efficiency and quality, while better meeting specific production or usage needs, providing strong support for the sustainable development of the water conservancy engineering field. Utility Model Content

[0005] The purpose of this utility model is to provide a mud circulation device for pipe jacking construction, which solves the problem of inconvenience in extracting mud from the pipe in the existing technology. Failure to extract mud from the pipe in time will seriously affect the subsequent use of the pipe, and thus affect the progress and quality of the entire project.

[0006] To achieve the above objectives, this utility model provides a mud circulation device for pipe jacking construction, including a frame and a jacking pipe disposed inside the frame, with one end of the jacking pipe penetrating through the side wall of the frame;

[0007] A bearing plate is slidably connected to the inner side of the frame, and a hydraulic cylinder is fixedly connected to one side of the outer wall of the frame by bolts. The output shaft of the hydraulic cylinder passes through the side wall of the frame and is fixedly connected to one side of the bearing plate. An agitator is rotatably connected to the inner side of the jacking pipe, and a drive motor is fixedly connected to one side of the bearing plate by bolts. One end of the agitator passes through the bearing plate and is connected to the output shaft of the drive motor. Suction pipes are fixedly connected to both sides of the inner side of the jacking pipe. A sludge pump is fixedly connected to one side of the outer wall of the frame by bolts, and one end of each suction pipe is connected to the inlet of the sludge pump.

[0008] The frame has a connecting pipe on one side of the top, and one end of each of the two suction pipes is connected to one end of the connecting pipe, and one end of the connecting pipe is connected to the outlet of the sludge pump.

[0009] One side of the bearing plate is fixedly connected to a connecting frame, and the output shaft of the hydraulic cylinder is fixedly connected to one side of the connecting frame.

[0010] The support plate has sliders fixedly connected to both sides, and both sliders are slidably connected to the inner wall of the frame through a groove.

[0011] One end of the agitator rod passes through the bearing sleeve through the bearing plate, and the connection between the output shaft of the hydraulic cylinder and the frame is a sliding connection.

[0012] One end of the jacking pipe passes through the side wall of the frame through a side groove. A handle is fixedly connected to one side of the outer wall of the frame. Both sides of the bottom of the jacking pipe are provided with arc-shaped support plates, and the bottom of the two arc-shaped support plates are fixedly connected to the bottom of the inner side of the frame.

[0013] This utility model discloses a slurry circulation device for pipe jacking construction. By combining a hydraulic cylinder and a support plate, it achieves rapid and accurate positioning and insertion of the jacking pipe, reducing errors and time consumption that may occur with traditional manual or semi-automatic methods. The design of a drive motor driving a stirring rod effectively solves the problem of slurry being difficult to extract due to excessive viscosity, making the slurry looser, improving the efficiency of the sludge pump, and reducing energy consumption. Furthermore, the device optimizes its overall structure through a rational layout of components such as the frame, jacking pipe, support plate, drive motor, stirring rod, and sludge pump, making the equipment more stable and reliable in practical applications. This significantly reduces the risk of pipe jacking blockage caused by untreated slurry, ensuring project progress and quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a top view of an embodiment of the present invention.

[0017] Figure 3 This is a side view structural diagram of an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the inner structure of the frame in an embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram of the jacking pipe structure according to an embodiment of the present invention.

[0020] 1. Frame; 2. Handle; 3. Top pipe; 4. Side groove; 5. Bearing plate; 6. Slider; 7. Slide; 8. Sludge pump; 9. Connecting pipe; 10. Hydraulic cylinder; 11. Agitator rod; 12. Arc-shaped support plate; 13. Connecting frame; 14. Suction pipe; 15. Drive motor. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 A mud circulation device for pipe jacking construction includes a frame 1 and a jacking pipe 3 disposed inside the frame 1, with one end of the jacking pipe 3 penetrating through the side wall of the frame 1. A bearing plate 5 is slidably connected to the inside of the frame 1, and a hydraulic cylinder 10 is fixedly connected to one side of the outer wall of the frame 1 by bolts. The output shaft of the hydraulic cylinder 10 is fixedly connected to one side of the bearing plate 5 through the side wall of the frame 1. An agitator 11 is rotatably connected to the inside of the jacking pipe 3, and a drive motor 15 is fixedly connected to one side of the bearing plate 5 by bolts. One end of the agitator 11 is connected to the output shaft of the drive motor 15 through the bearing plate 5. Suction pipes 14 are fixedly connected to both sides of the inside of the jacking pipe 3. A sludge pump 8 is fixedly connected to one side of the outer wall of the frame 1 by bolts, and one end of each suction pipe 14 is connected to the inlet of the sludge pump 8.

[0023] First, move the frame 1 to the desired position for the jacking pipe 3, ensuring the equipment is in the optimal operating position for subsequent operations. Next, activate the hydraulic cylinder 10, whose output shaft passes through the side wall of the frame 1 and is fixedly connected to one side of the support plate 5. The operation of the hydraulic cylinder 10 drives the support plate 5 to slide, thereby pushing the jacking pipe 3 into the soil layer, achieving the first step of pipe jacking construction. Simultaneously, activate the drive motor 15, which is fixed to the support plate 5 and connected to the output shaft of the drive motor 15 via a stirring rod 11. The stirring rod 11 rotates inside the jacking pipe 3, thoroughly agitating the internal mud, making it looser and easier to extract. Finally, activate the sludge pump 8, which is connected to the inside of the jacking pipe 3 via two suction pipes 14. Using the powerful suction of the sludge pump 8, the loosened mud is extracted from the jacking pipe 3, completing the entire mud circulation process.

[0024] Furthermore, a connecting pipe 9 is provided on one side of the top of the frame 1, and one end of each of the two suction pipes 14 is connected to one end of the connecting pipe 9. The connecting pipe 9 is also connected to the outlet of the sludge pump 8. After the two suction pipes 14 suck in the sludge from the top pipe 3, the sludge first collects in the connecting pipe 9, and then is transported through the connecting pipe 9 to the outlet of the sludge pump 8 for discharge. This design makes the sludge flow path more reasonable, avoiding problems such as blockage or insufficient suction caused by unreasonable pipe layout, thus improving sludge extraction efficiency and equipment operational stability.

[0025] Furthermore, a connecting frame 13 is fixedly connected to one side of the bearing plate 5, and the output shaft of the hydraulic cylinder 10 is fixedly connected to one side of the connecting frame 13. The output shaft of the hydraulic cylinder 10 drives the bearing plate 5 to slide through the fixedly connected connecting frame 13, thereby pushing the jacking pipe 3 into the soil layer. This structure enhances the connection strength between the hydraulic cylinder 10 and the bearing plate 5, avoiding loosening or displacement caused by uneven force, and achieving the effect of improving the operating accuracy and reliability of the equipment.

[0026] Furthermore, sliders 6 are fixedly connected to both sides of the bearing plate 5, and both sliders 6 are slidably connected to the inner wall of the frame 1 through grooves 7. When the bearing plate 5 slides along the inner wall of the frame 1 under the drive of the hydraulic cylinder 10, the sliders 6 fixed on both sides will move smoothly within the grooves 7. This design effectively reduces the friction of the bearing plate 5 during the sliding process, ensuring the stability and accuracy of the jacking pipe 3 when inserted into the soil layer, and achieving the effect of reducing equipment wear and improving work efficiency.

[0027] Furthermore, one end of the stirring rod 11 passes through the bearing sleeve through the support plate 5, and the connection between the output shaft of the hydraulic cylinder 10 and the frame 1 is a sliding connection. One end of the stirring rod 11 passes through the bearing sleeve through the support plate 5 and is connected to the output shaft of the drive motor 15. This not only ensures the stability of the stirring rod 11 during rotation, but also reduces the frictional loss between the stirring rod 11 and the support plate 5, thereby extending the service life of the equipment and improving the stirring effect.

[0028] Furthermore, one end of the jacking pipe 3 passes through the side wall of the frame 1 via the side groove 4. A handle 2 is fixedly connected to one side of the outer wall of the frame 1. Arc-shaped support plates 12 are provided on both sides of the bottom of the jacking pipe 3, and the bottom of the two arc-shaped support plates 12 is fixedly connected to the bottom of the inner side of the frame 1. The bottom sides of the jacking pipe 3 are fixedly connected to the bottom of the inner side of the frame 1 via the arc-shaped support plates 12. This design provides stable support for the jacking pipe 3, avoiding the problem of tilting or shifting due to uneven force on the jacking pipe 3 during the jacking construction process. This achieves the effect of enhancing the overall stability of the equipment and the safety of construction. At the same time, the design of the handle 2 facilitates the overall movement and positioning of the frame 1, further improving the portability and ease of operation of the equipment.

[0029] In summary:

[0030] First, move the frame 1 to the desired position for the jacking pipe 3 using the handle 2 fixedly connected to one side of its outer wall, ensuring the equipment is in the optimal operating position for subsequent operations. Next, activate the hydraulic cylinder 10. Its output shaft establishes a stable connection with one side of the support plate 5 via the fixed connecting frame 13, driving the support plate 5 to smoothly slide along the slider 6 within the groove 7 on the inner wall of the frame 1. This pushes the jacking pipe 3 through the side groove 4, penetrating the side wall of the frame 1 and inserting it into the soil layer, completing the first step of the jacking construction. Simultaneously, activate the drive motor 15, which is fixed to the support plate 5 and connected to the output shaft of the drive motor 15 via a stirring rod 11. One end of the stirring rod 11 passes through the support plate 5 via a bearing sleeve and rotates inside the jacking pipe 3, thoroughly agitating the internal mud, making it looser and easier to extract. Finally, the sludge pump 8 is started. The sludge pump 8 is connected to the inside of the jacking pipe 3 through two suction pipes 14. These two suction pipes 14 suck in the sludge from the jacking pipe 3. The sludge first collects in the connecting pipe 9, and then is transported to the outlet of the sludge pump 8 for discharge. Utilizing the strong suction of the sludge pump 8, the loosened sludge is extracted from the jacking pipe 3, completing the entire sludge circulation process. The cooperation of the connecting pipe 9, suction pipes 14, and sludge pump 8 makes the sludge flow path more reasonable, avoiding blockages or insufficient suction caused by unreasonable pipe layout, thus improving sludge extraction efficiency and equipment operational stability. The cooperation between the connecting frame 13 and the output shaft of the hydraulic cylinder 10 enhances the connection strength between the hydraulic cylinder 10 and the bearing plate 5, avoiding loosening or displacement caused by uneven force, and improving the operational accuracy and reliability of the equipment. The cooperation between the slider 6 and the sliding groove 7 effectively reduces the friction of the bearing plate 5 during sliding, ensuring... The design ensures the stability and precision of the jacking pipe 3 when inserted into the soil layer, reducing equipment wear and improving work efficiency. The cooperation between the bearing sleeve and the agitator 11 not only guarantees the stability of the agitator 11 during rotation but also reduces frictional loss between the agitator 11 and the bearing plate 5, extending the equipment's service life and improving the agitation effect. The fixed connection between the arc-shaped support plate 12 and the bottom sides of the jacking pipe 3 provides stable support, preventing tilting or displacement due to uneven stress on the jacking pipe 3 during construction, thus enhancing the overall stability and construction safety of the equipment. Simultaneously, the handle 2 facilitates the overall movement and positioning of the frame 1, further improving the equipment's portability and ease of operation. These designs work together to significantly improve the problem of inconvenient mud extraction in existing technologies, greatly enhancing construction efficiency and quality.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A mud circulation device for pipe jacking construction, comprising a frame (1), characterized in that, It also includes a top pipe (3) provided on the inner side of the frame (1), and one end of the top pipe (3) penetrates the side wall of the frame (1); The inner side of the frame (1) is slidably connected to a bearing plate (5), and a hydraulic cylinder (10) is fixedly connected to one side of the outer wall of the frame (1) by bolts. The output shaft of the hydraulic cylinder (10) passes through the side wall of the frame (1) and is fixedly connected to one side of the bearing plate (5). The inner side of the top pipe (3) is rotatably connected to a stirring rod (11), and a drive motor (15) is fixedly connected to one side of the bearing plate (5) by bolts. One end of the stirring rod (11) passes through the bearing plate (5) and is connected to the output shaft of the drive motor (15) for transmission. Both sides of the inner side of the top pipe (3) are fixedly connected to suction pipes (14). A sludge pump (8) is fixedly connected to one side of the outer wall of the frame (1) by bolts. One end of each suction pipe (14) is connected to the inlet of the sludge pump (8).

2. The mud circulation equipment for pipe jacking construction as described in claim 1, characterized in that, The top side of the frame (1) is provided with a connecting pipe (9), and one end of each of the two suction pipes (14) is connected to one end of the connecting pipe (9), and one end of the connecting pipe (9) is connected to the outlet of the sludge pump (8).

3. The mud circulation equipment for pipe jacking construction as described in claim 1, characterized in that, A connecting frame (13) is fixedly connected to one side of the bearing plate (5), and the output shaft of the hydraulic cylinder (10) is fixedly connected to one side of the connecting frame (13).

4. The mud circulation equipment for pipe jacking construction as described in claim 1, characterized in that, Both sides of the bearing plate (5) are fixedly connected to sliders (6), and both sliders (6) are slidably connected to the inner wall of the frame (1) through the sliding groove (7).

5. A mud circulation device for pipe jacking construction as described in claim 1, characterized in that, One end of the agitator (11) passes through the bearing sleeve through the bearing plate (5), and the connection between the output shaft of the hydraulic cylinder (10) and the frame (1) is a sliding connection.

6. The mud circulation equipment for pipe jacking construction as described in claim 1, characterized in that, One end of the top pipe (3) passes through the side wall of the frame (1) through the side groove (4). A handle (2) is fixedly connected to one side of the outer wall of the frame (1). Arc-shaped support plates (12) are provided on both sides of the bottom of the top pipe (3), and the bottom of the two arc-shaped support plates (12) are fixedly connected to the bottom of the inner side of the frame (1).

Citation Information

Patent Citations

  • Pipe jacking device for hydraulic engineering pipe jacking method construction

    CN216242641U