A pipe pushing machine slurry discharge pipeline anti-blocking device
The motor-driven rotating rod adjusts the spacing of the crushing plates, and the cylinder-driven slider structure facilitates disassembly and cleaning of blockages. This solves the problems of compatibility and inconvenient maintenance of the slurry discharge pipe of the pipe jacking machine, and improves construction efficiency and versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HENGXIN ACTIVE MECHANICAL EQUIP CO LTD
- Filing Date
- 2025-10-09
- Publication Date
- 2026-07-24
AI Technical Summary
The existing pipe jacking machine has poor adaptability to grout discharge pipes, which cannot be flexibly adjusted to adapt to pipes of different diameters. In addition, the disassembly of the structure for clearing blockages is cumbersome, which affects construction efficiency and equipment management.
A device for preventing blockage in the slurry discharge pipe of a pipe jacking machine was designed. The device uses a motor to drive the rotating rod to adjust the spacing of the crushing plates to accommodate pipes of different diameters. The device also uses a cylinder to drive the slider and clamping arm structure for easy disassembly and cleaning of blockages.
It improves the versatility and ease of maintenance of the equipment, reduces equipment downtime, and enhances construction efficiency and equipment management flexibility.
Smart Images

Figure CN224550943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grout discharge pipes for pipe jacking machines, and in particular to an anti-clogging device for grout discharge pipes for pipe jacking machines. Background Technology
[0002] The slurry discharge pipeline of a pipe jacking machine is a dedicated conveying pipeline connected to the slurry outlet of the pipe jacking machine during pipe jacking construction. Its core function is to transport the slurry (or a mixture of slag and soil) generated after the pipe jacking machine head cuts the soil from the underground construction area to the surface treatment system (such as a slurry separator or sedimentation tank), while simultaneously discharging groundwater, debris, and other impurities generated during construction. It must be adapted to the slurry discharge pressure and flow rate of the pipe jacking machine, and typically extends synchronously with the pipe jacking along the construction axis. It must withstand particle abrasion in the slurry, high-pressure impact, and corrosion from the complex underground environment. It is a crucial supporting facility for ensuring continuous pipe jacking construction and preventing underground soil accumulation or road subsidence; its smooth operation directly affects construction efficiency and safety.
[0003] However, current pipe jacking machines have the following drawbacks in terms of grout discharge pipes: First, poor adaptability: existing devices are mostly of fixed size and cannot be flexibly adjusted to adapt to grout discharge pipes of different diameters. This lack of versatility necessitates the separate configuration of devices for different pipe diameters, increasing construction costs and equipment management difficulties. Second, inconvenient maintenance: the core structure used for clearing blockages is cumbersome to disassemble, making it difficult for workers to quickly disassemble for maintenance or replacement of parts, extending equipment downtime and affecting construction efficiency. In response to this technical problem, this application proposes an anti-blocking device for the slurry discharge pipe of a pipe jacking machine. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-clogging device for the slurry discharge pipe of a pipe jacking machine. The device is designed to be adaptable to pipes of different diameters, improving its versatility. The structure for clearing blockages is easy to disassemble, thus facilitating maintenance or replacement by workers.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A grout discharge pipe anti-clogging device for a pipe jacking machine includes a handle, a fixed base connected to the top of the handle, a plug ring fixedly connected to the bottom side of the fixed base, the plug ring being inserted into the top of the handle, a fixing component provided inside the handle to fix the fixed base to the handle, a base fixedly connected to the top side of the fixed base, three crushing plates connected to the base via an adjusting component to adjust the distance between the three crushing plates, and multiple crushing cones fixedly connected to the top side of the base.
[0006] Furthermore, the fixing assembly includes a slider slidably connected inside the grip, three clamping arms rotatably connected to the outer wall of the slider, and multiple metal plates fixedly connected to the outer wall of the grip, with a limit rod fixedly connected between two adjacent metal plates.
[0007] Furthermore, a through groove is provided at the middle end of the clamping arm, the limiting rod is located inside the through groove, a fixing block is fixedly connected to the top end of the clamping arm, and three fixing grooves are provided on the outer wall of the fixing seat, with the fixing block engaging inside the fixing groove.
[0008] Furthermore, a cylinder is installed inside the grip, and the bottom side of the slider is fixedly connected to the drive end of the cylinder.
[0009] Furthermore, the adjustment assembly includes a gear column rotatably connected inside the chassis, the bottom end of the gear column being rotatably connected inside the fixed seat, and three gear plates being slidably connected inside the chassis, with the gear plates and the gear column meshing with each other.
[0010] Furthermore, the end of the toothed plate is fixedly connected to one side of the crushing plate, the top of the inside of the gripping rod is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a protruding strip, and the bottom end of the toothed column is provided with a slot.
[0011] Furthermore, both the rotating rod and the protruding strip are inserted into the inside of the slot, a motor is installed at the top of the inside of the grip rod, and the bottom of the rotating rod is fixedly connected to the drive end of the motor.
[0012] This utility model has the following beneficial effects: 1. In this utility model, a motor drives a rotating rod to rotate, which in turn drives a toothed column to rotate. This causes the toothed column to drive three toothed plates to slide, which in turn moves the crushing plate. This allows the distance between the three crushing plates to be adjusted, enabling the device to adapt to pipes of different diameters and improving its versatility.
[0013] 2. In this utility model, the clamping arm is moved up and down by the slider. During this process, the bottom end of the clamping arm will rotate on the outer wall of the slider. Under the restriction of the limiting rod, the top end of the clamping arm will move closer to or away from the outer wall of the fixed seat, so that the fixed block is engaged with the inside of the fixed groove or disengaged from the fixed groove, thereby completely fixing the fixed seat to the handle. This makes it easy to disassemble the structure used to clean the blockage, so that it is convenient for workers to maintain or replace it. Attached Figure Description
[0014] Figure 1 This is a perspective view of an anti-clogging device for the slurry discharge pipeline of a pipe jacking machine proposed in this utility model; Figure 2This is a bottom view of the chassis of an anti-clogging device for the slurry discharge pipe of a pipe jacking machine proposed in this utility model; Figure 3 This is a top view of the handle of an anti-clogging device for the slurry discharge pipe of a pipe jacking machine proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the chassis of an anti-blocking device for the slurry discharge pipeline of a pipe jacking machine proposed in this utility model; Figure 5 This is a schematic diagram of the internal structure of the grip rod of the anti-clogging device for the slurry discharge pipeline of a pipe jacking machine proposed in this utility model.
[0015] Legend: 1. Handle; 2. Fixing base; 3. Chassis; 4. Crushing cone; 5. Clamping arm; 6. Crushing plate; 7. Toothed plate; 8. Toothed column; 9. Insert ring; 10. Rotating rod; 11. Protruding strip; 12. Fixing block; 13. Metal sheet; 14. Limiting rod; 15. Motor; 16. Slider; 17. Cylinder. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Reference Figures 1-3 This utility model provides an embodiment of an anti-clogging device for a slurry discharge pipe of a pipe jacking machine, comprising a handle 1, a fixed base 2 connected to the top of the handle 1, and a ring 9 fixedly connected to the bottom side of the fixed base 2. The ring 9 is inserted into the top of the handle 1, and the fixed base 2 is initially installed on the handle 1 by inserting the ring 9 into the top of the handle 1. A base plate 3 is fixedly connected to the top side of the fixed base 2, and three crushing plates 6 are connected to the base 3. Multiple crushing cones 4 are fixedly connected to the top side of the base 3. The crushing plates 6 and crushing cones 4 are used to crush the blockage in the pipe, thereby solving the blockage problem and achieving the effect of preventing blockage. (See reference...) Figure 2 , Figure 3 and Figure 5The grip 1 has a slider 16 slidably connected inside, and three clamping arms 5 are rotatably connected to the outer wall of the slider 16. Multiple metal plates 13 are fixedly connected to the outer wall of the grip 1, and a limit rod 14 is fixedly connected between adjacent metal plates 13. A through groove is formed at the middle end of each clamping arm 5, and the limit rod 14 is located inside the through groove. A fixing block 12 is fixedly connected to the top end of each clamping arm 5. Three fixing grooves are formed on the outer wall of the fixing seat 2, and the fixing block 12 engages inside the fixing grooves. A cylinder 17 is installed inside the grip 1, and the bottom side of the slider 16 is fixedly connected to the drive end of the cylinder 17. The cylinder 17 drives the slider 16 to slide up and down inside the handle 1, causing the slider 16 to push the clamping arm 5 to move up and down. During this process, the bottom end of the clamping arm 5 will rotate on the outer wall of the slider 16, and under the restriction of the limit rod 14, the top end of the clamping arm 5 will move closer to or further away from the outer wall of the fixed seat 2, so that the fixing block 12 is engaged with the inside of the fixing groove or disengaged from the fixing groove, thereby completely fixing the fixed seat 2 to the handle 1. This makes it easy to disassemble the structure used to clean the blockage, so that it is convenient for the staff to maintain or replace it.
[0018] Reference Figures 2-4 The chassis 3 has a rotatably connected toothed column 8 inside, and the bottom end of the toothed column 8 is rotatably connected to the inside of the fixed base 2. Three toothed plates 7 are slidably connected inside the chassis 3, and the toothed plates 7 and the toothed column 8 mesh with each other. The ends of the toothed plates 7 are fixedly connected to one side of the crushing plate 6. The top of the handle 1 is rotatably connected to a rotating rod 10 inside, and a protrusion 11 is fixedly connected to the outer wall of the rotating rod 10. The bottom end of the toothed column 8 has a slot, and the rotating rod 10 and the protrusion 11 are inserted into the slot. A motor 15 is installed at the top of the handle 1 inside. The bottom end of the rotating rod 10 is fixedly connected to the drive end of the motor 15. The rotating rod 10 and the protrusion 11 are inserted into the slot to make the rotating rod 10 and the toothed column 8 dock. Then, the motor 15 drives the rotating rod 10 to rotate, which in turn drives the toothed column 8 to rotate. The toothed column 8 drives the three toothed plates 7 to slide, which in turn moves the toothed plates 7 with the crushing plate 6. This adjusts the distance between the three crushing plates 6, allowing the device to adapt to pipes of different diameters and improving the versatility of the device.
[0019] Working principle: First, insert the insertion ring 9 to the top of the grip 1 to initially install the fixing seat 2 onto the grip 1. During this process, the rotating rod 10 and the protruding strip 11 need to be inserted into the slot to align the rotating rod 10 and the toothed column 8. Then, start the cylinder 17 to drive the slider 16 to slide downward inside the grip 1. This causes the slider 16 to push the clamping arm 5 downward. During this process, the bottom end of the clamping arm 5 will rotate on the outer wall of the slider 16. Under the restriction of the limiting rod 14, the top end of the clamping arm 5 will move closer to the outer wall of the fixing seat 2, thereby engaging the fixing block 12 into the fixing groove and completely fixing the fixing seat 2 onto the grip 1. On rod 1, the distance between the three crushing plates 6 is adjusted according to the pipe diameter. When adjustment is needed, motor 15 is started to drive rotating rod 10 to rotate, causing rotating rod 10 to drive toothed column 8 to rotate, causing toothed column 8 to drive three toothed plates 7 to slide, causing toothed plates 7 to move with crushing plates 6, thereby adjusting the distance between the three crushing plates 6 so that the outer wall of crushing plate 6 is attached to the inner wall of the pipe. Then, holding handle 1, the base 3 is pushed towards the blockage in the pipe, and then the handle 1 is rotated to make the base 3 rotate, thereby crushing the blockage in the pipe through crushing plates 6 and crushing cone 4, thus solving the blockage problem.
[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for preventing blockage in the slurry discharge pipe of a pipe jacking machine, characterized in that: The device includes a grip (1), a fixed seat (2) connected to the top of the grip (1), a plug ring (9) fixedly connected to the bottom side of the fixed seat (2), the plug ring (9) being inserted into the top of the grip (1), a fixing component being provided inside the grip (1) to fix the fixed seat (2) to the grip (1), a chassis (3) fixedly connected to the top side of the fixed seat (2), three crushing plates (6) connected to the chassis (3) through an adjustment component to adjust the distance between the three crushing plates (6), and multiple crushing cones (4) fixedly connected to the top side of the chassis (3).
2. The anti-blocking device for the slurry discharge pipe of a pipe jacking machine according to claim 1, characterized in that: The fixing component includes a slider (16) slidably connected inside the grip (1), three clamping arms (5) are rotatably connected to the outer wall of the slider (16), and a plurality of metal plates (13) are fixedly connected to the outer wall of the grip (1), with a limit rod (14) fixedly connected between two adjacent metal plates (13).
3. The anti-blocking device for the slurry discharge pipeline of a pipe jacking machine according to claim 2, characterized in that: The clamping arm (5) has a through groove at its middle end, the limiting rod (14) is located inside the through groove, the top end of the clamping arm (5) is fixedly connected to a fixing block (12), the outer wall of the fixing seat (2) has three fixing grooves, and the fixing block (12) is engaged inside the fixing groove.
4. The anti-blocking device for the slurry discharge pipeline of a pipe jacking machine according to claim 3, characterized in that: A cylinder (17) is installed inside the grip (1), and the bottom side of the slider (16) is fixedly connected to the drive end of the cylinder (17).
5. The anti-blocking device for the slurry discharge pipe of a pipe jacking machine according to claim 1, characterized in that: The adjustment assembly is rotatably connected to the toothed column (8) inside the chassis (3). The bottom end of the toothed column (8) is rotatably connected to the inside of the fixed seat (2). Three toothed plates (7) are slidably connected inside the chassis (3). The toothed plates (7) and the toothed column (8) mesh with each other.
6. The anti-blocking device for the slurry discharge pipe of a pipe jacking machine according to claim 5, characterized in that: The end of the toothed plate (7) is fixedly connected to one side of the crushing plate (6), the top of the handle (1) is rotatably connected to a rotating rod (10), the outer wall of the rotating rod (10) is fixedly connected to a protrusion (11), and the bottom end of the toothed column (8) is provided with a slot.
7. The anti-blocking device for the grout discharge pipeline of a pipe jacking machine according to claim 6, characterized in that: The rotating rod (10) and the protruding strip (11) are both inserted into the slot. The top of the grip (1) is equipped with a motor (15), and the bottom of the rotating rod (10) is fixedly connected to the drive end of the motor (15).