Flushing device capable of avoiding slurry hardening
By designing a flushing device that includes an outer shell, an inner shell, a stepper motor, a high-pressure nozzle, an electric telescopic rod, and electric rollers, the problem of difficult cleaning of concrete pump truck pipelines has been solved, achieving effective cleaning of the pipeline inner wall and improving the wear resistance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG XINAN ELECTRIC POWER GROUP NEW WALLING MATERIALS
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
After concrete pump trucks pour concrete, it is difficult to clean the inside of the pipes, which causes the slurry to clump together and affects normal use.
A flushing device comprising an outer shell, an inner shell, a stepper motor, a high-pressure nozzle, an electric telescopic rod, and electric rollers was designed. The high-pressure nozzle cleans the inner wall of the pipe, and the telescopic guide rod and silicon carbide wear-resistant coating prevent equipment damage and caking.
It effectively removes residual concrete from the inner wall of the pipeline, prevents the slurry from caking, extends the service life of the equipment, and ensures the normal operation of the concrete pump truck.
Smart Images

Figure CN224157468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipeline cleaning equipment, specifically a flushing device to prevent slurry from caking. Background Technology
[0002] When concrete bleeds, the water and slurry rise to the surface, while the aggregate sinks and adheres to the base slab, making it difficult to turn over with tools such as shovels. This phenomenon is called bottom stripping and hardening.
[0003] After concrete pump trucks pour concrete, it is difficult to clean the inside of the pipes. If they cannot be cleaned for a long time, the slurry will clump together, affecting the normal use of the concrete delivery pipes. To address this, we propose a flushing device to prevent slurry clumping. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a flushing device that prevents slurry from caking. It can penetrate deep into the pipe to flush the pipe wall, remove residual concrete adhering to the pipe surface, and prevent the slurry inside the pipe from caking and affecting the normal use of the concrete pump truck. It can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flushing device to prevent slurry caking, comprising a shell, the shell being a hexagonal tubular structure open at both ends, a connecting frame fixedly connected in a circumferential array on the inner surface of the shell, and an inner shell fixedly connected to the inner end of the connecting frame, a stepper motor fixedly connected inside the inner shell, and a high-pressure nozzle fixedly connected to the output shaft end of the stepper motor, a power signal relay module fixedly connected to the lower end of the inner shell, and two pressure-resistant water pipes fixedly connected to the upper left and right sides of the rear surface of the high-pressure nozzle, with the inlet end of the pressure-resistant water pipes connected to the outlet end of an external booster pump, an electric telescopic rod fixedly connected in a circumferential array on the outer surface of the shell, and a movable plate hinged to the telescopic end of the electric telescopic rod, with electric rollers rotatably connected to both ends of the outer surface of the movable plate via fixed seats;
[0006] Wherein: the input ends of the stepper motor, electric telescopic rod and electric roller are electrically connected to the output end of the external control terminal through a power signal relay module.
[0007] Furthermore, it also includes a telescopic guide rod, which is hinged to the middle of both ends of the inner surface of the movable plate, and the inner end of the telescopic guide rod is hinged to the outer surface of the outer shell; the telescopic guide rod can provide auxiliary support for the movable plate to prevent the movable plate from deforming or falling off and affecting the normal use of the equipment.
[0008] Furthermore, the outer surface of the housing is coated with a silicon carbide wear-resistant coating, and the edges and corners of the housing are all rounded. The silicon carbide wear-resistant coating on the surface of the housing can enhance the wear resistance of the housing and prevent damage to the housing from affecting the service life of the equipment.
[0009] Furthermore, the surface of the high-pressure nozzle is electroplated with a nickel alloy corrosion-resistant layer, and the nozzles of the high-pressure nozzle are arranged in a circumferential array on the outer ring surface; the annular structure of the high-pressure nozzle can accelerate the cleaning efficiency, and the nickel alloy corrosion-resistant layer can extend the service life of the high-pressure nozzle.
[0010] Furthermore, the electric roller is a rubber-coated roller, and the outer surface of the electric roller is provided with anti-slip grooves in a linear array; the rubber-coated roller can prevent the equipment from scratching the pipe surface, and the anti-slip grooves can ensure the normal movement of the equipment in the pipe, making the use of the equipment more convenient and stable.
[0011] Compared with the prior art, the beneficial effects of this utility model are: this flushing device that avoids slurry caking has the following advantages:
[0012] 1. It can penetrate deep into the pipe to flush the pipe wall, remove residual concrete adhering to the pipe surface, and prevent the slurry inside the pipe from hardening and affecting the normal use of the concrete pump truck.
[0013] 2. The telescopic guide rods can provide auxiliary support for the movable plate, preventing it from deforming or falling off and affecting the normal use of the equipment.
[0014] 3. The silicon carbide wear-resistant coating sprayed on the outer shell surface can enhance the wear resistance of the outer shell and prevent damage to the outer shell from affecting the service life of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure from the right side view of this utility model.
[0018] In the diagram: 1 Outer shell, 2 Connecting frame, 3 Inner shell, 4 Stepper motor, 5 High-pressure nozzle, 6 Power signal relay module, 7 Pressure-resistant water pipe, 8 Electric telescopic rod, 9 Telescopic guide rod, 10 Movable plate, 11 Fixed base, 12 Electric roller. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-3 This embodiment provides a technical solution: a flushing device to prevent slurry caking, including a shell 1, which is a hexagonal tubular structure open at both ends. A connecting frame 2 is fixedly connected to the inner surface of the shell 1 in a circumferential array, and an inner shell 3 is fixedly connected to the inner end of the connecting frame 2. A stepper motor 4 is fixedly connected inside the inner shell 3, and a high-pressure nozzle 5 is fixedly connected to the output shaft end of the stepper motor 4. A power signal relay module 6 is fixedly connected to the lower end of the inner shell 1, and two pressure-resistant water pipes 7 are fixedly connected to the left and right sides of the upper rear surface of the high-pressure nozzle 5, respectively. The inlet end of the pressure-resistant water pipe 7 is connected to the outlet end of an external booster pump. An electric telescopic rod 8 is fixedly connected to the outer surface of the shell 1 in a circumferential array, and a movable plate 10 is hinged to the telescopic end of the electric telescopic rod 8. Electric rollers 12 are rotatably connected to the two ends of the outer surface of the movable plate 10 through a fixed seat 11.
[0021] Among them, the input terminals of stepper motor 4, electric telescopic rod 8 and electric roller 12 are electrically connected to the output terminal of external control terminal through power signal relay module 6.
[0022] In this embodiment, a telescopic guide rod 9 is also included. The telescopic guide rod 9 is hinged to the middle of both ends of the inner surface of the movable plate 10, and the inner end of the telescopic guide rod 9 is hinged to the outer surface of the outer shell 1. The telescopic guide rod 9 can provide auxiliary support for the movable plate 10 to prevent the movable plate 10 from deforming or falling off and affecting the normal use of the equipment.
[0023] In this embodiment, the outer surface of the housing 1 is coated with a silicon carbide wear-resistant coating, and the edges and corners of the housing 1 are all rounded. The silicon carbide wear-resistant coating on the surface of the housing 1 can enhance the wear resistance of the housing 1 and prevent damage to the housing 1 from affecting the service life of the equipment.
[0024] In this embodiment, the surface of the high-pressure nozzle 5 is electroplated with a nickel alloy corrosion-resistant layer, and the nozzles of the high-pressure nozzle 5 are arranged in a circumferential array on the outer ring surface; the annular structure of the high-pressure nozzle 5 can accelerate the cleaning efficiency, and the nickel alloy corrosion-resistant layer can extend the service life of the high-pressure nozzle 5.
[0025] In this embodiment, the electric roller 12 is a rubber-coated roller, and the outer surface of the electric roller 12 is provided with anti-slip grooves in a linear array; the rubber-coated roller 12 can prevent the equipment from scratching the pipe surface, and the anti-slip grooves can ensure the normal movement of the equipment in the pipe, making the use of the equipment more convenient and stable.
[0026] The working principle of the flushing device for preventing slurry caking provided by this utility model is as follows: The device is placed in the concrete conveying pipeline, and the electric telescopic rod 8 is controlled to push the movable plate 10 out, so that the electric roller 12 contacts the inner wall of the pipeline. The rotation of the electric roller 12 drives the cleaning device to move. At the same time, the external booster pump supplies water to the high-pressure nozzle 5 through the pressure-resistant water pipe 7. The high-pressure nozzle 5 sprays water out, and at the same time, the stepper motor 4 drives the high-pressure nozzle 5 to rotate ±30 degrees to achieve the effect of cleaning the inner wall of the pipeline.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A flushing device for preventing slurry caking, characterized in that: Includes an outer shell (1), which is a hexagonal tubular structure with open ends. The inner surface of the outer shell (1) is fixedly connected to a connecting frame (2) in a circular array. The inner end of the connecting frame (2) is fixedly connected to an inner shell (3). The inner shell (3) is fixedly connected to a stepper motor (4). The output shaft end of the stepper motor (4) is fixedly connected to a high-pressure nozzle (5). The lower end of the inner shell (1) is fixedly connected to a power signal relay module (6). The upper left and right sides of the rear surface of the high-pressure nozzle (5) are fixedly connected to two pressure-resistant water pipes (7). The inlet end of the pressure-resistant water pipe (7) is connected to the outlet end of an external booster pump. The outer surface of the outer shell (1) is fixedly connected to an electric telescopic rod (8) in a circular array. The telescopic end of the electric telescopic rod (8) is hinged to a movable plate (10). The two ends of the outer surface of the movable plate (10) are rotatably connected to electric rollers (12) through a fixed seat (11). Wherein: the input ends of the stepper motor (4), electric telescopic rod (8) and electric roller (12) are electrically connected to the output end of the external control terminal through the power signal relay module (6).
2. The flushing device for preventing slurry caking according to claim 1, characterized in that: It also includes a telescopic guide rod (9), which is hinged to the middle of both ends of the inner surface of the movable plate (10), and the inner end of the telescopic guide rod (9) is hinged to the outer surface of the outer shell (1).
3. The flushing device for preventing slurry caking according to claim 1, characterized in that: The outer surface of the outer shell (1) is coated with a silicon carbide wear-resistant coating, and the corners of the outer shell (1) are all rounded.
4. The flushing device for preventing slurry caking according to claim 1, characterized in that: The surface of the high-pressure nozzle (5) is electroplated with a nickel alloy corrosion-resistant layer, and the nozzles of the high-pressure nozzle (5) are arranged in a circumferential array on the outer ring surface.
5. A flushing device for preventing slurry caking according to claim 1, characterized in that: The electric roller (12) is a rubber-coated roller, and the outer surface of the electric roller (12) is provided with anti-slip grooves in a linear array.