Rainwater pipeline dredging device

By designing a multi-functional inlet head and replacement head, the problem of insufficient adaptability of existing devices has been solved, achieving efficient dredging results and enhancing adaptability and cleaning capabilities to different environments.

CN224148869UActive Publication Date: 2026-04-21CCCC FIRST HIGHWAY XIAMEN ENGINEERING CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC FIRST HIGHWAY XIAMEN ENGINEERING CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing high-pressure water jet pipe dredging devices only have a single type of teardrop-shaped head, which is difficult to adapt to different environments and has low practicality.

Method used

The design incorporates a multi-functional inlet head, including a teardrop-shaped nozzle and a replacement head. The nozzles are arranged in a ring to form a 360° full-coverage jet. The conical head and blunt head are used to penetrate hard deposits and break up large-volume blockages, respectively. The threaded connection uses a trapezoidal thread to enable quick assembly and disassembly.

Benefits of technology

It improves the adaptability and efficiency of the dredging device, reduces blind spots in dredging, enhances the stripping and breaking effect on silt and blockages, and reduces travel resistance and disassembly/assembly difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rainwater pipeline desilting device, which belongs to the technical field of pipeline desilting and comprises a water pipe, an inlet head is arranged on the upper side of the water pipe, the inside of the inlet head is communicated with the water pipe, a plurality of spray heads are arranged on the surface of the inlet head, and a replacement head is further arranged on the inlet head. The high-pressure water jet pipeline desilting device solves the problems that when an existing high-pressure water jet pipeline desilting device is used, only one single water-drop-shaped head is provided, the existing high-pressure water jet pipeline desilting device is difficult to apply to different environments, and practicability is not high.
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Description

Technical Field

[0001] This utility model belongs to the field of pipeline dredging technology, specifically relating to a rainwater pipeline dredging device. Background Technology

[0002] Pipelines are primarily used to transport gases, liquids, or fluids containing solid particles. Their applications are wide-ranging, mainly in water supply, drainage, heating, gas supply, and long-distance transport of oil and natural gas. In municipal wastewater treatment systems, pipelines are used to transport rainwater and sewage. As rainwater and sewage continuously flow into the sewers, household waste, leaves, and silt also enter the pipes. When these foreign objects accumulate, they cause blockages inside the pipes, reducing the amount of rainwater and sewage transported and decreasing the efficiency of rainwater and sewage discharge.

[0003] Existing high-pressure water jet pipe cleaning devices typically only have a single teardrop-shaped head, making them difficult to apply in different environments and thus not very practical. Summary of the Invention

[0004] This utility model provides a rainwater pipe dredging device, which aims to solve the problem that existing high-pressure water jet pipe dredging devices usually only have a single teardrop-shaped head, making them difficult to apply in different environments and lacking practicality.

[0005] This utility model provides a rainwater pipe dredging device, including a water pipe, an inlet head on the upper side of the water pipe, the interior of the inlet head communicating with the water pipe, a plurality of nozzles on the surface of the inlet head, and a replacement head on the inlet head.

[0006] Furthermore, the inlet head is teardrop-shaped, and the diameter of the end of the inlet head away from the water pipe is larger than the diameter of the other end.

[0007] By adopting the above technical solutions, the teardrop-shaped streamlined design can reduce travel resistance and avoid water turbulence caused by abrupt changes in head shape.

[0008] Furthermore, the nozzles are arranged in a ring on the wall surface at the point where the diameter of the inlet head is the largest.

[0009] By adopting the above technical solution, the annularly distributed nozzles form a 360° full-coverage jet, simultaneously flushing the top and sidewall deposits of the pipe; setting the nozzle at the largest diameter can maximize the spray coverage radius and reduce blind spots in dredging.

[0010] Furthermore, the nozzle is angled toward one end of the water pipe.

[0011] By adopting the above technical solution, the nozzle tilt angle generates a reverse thrust component, propelling the device forward continuously; at the same time, the tilted spray enhances the stripping effect on the hardened sludge.

[0012] Furthermore, the replacement head includes a tapered head that is threadedly connected to the end of the inlet head away from the water pipe.

[0013] By adopting the above technical solution, the pointed tip of the conical head greatly reduces the resistance encountered when penetrating hard deposits and viscous substances with a long radial length; the threaded connection adopts a trapezoidal thread to achieve quick assembly and disassembly.

[0014] Furthermore, the replacement head also includes a blunt head, which is threadedly connected to the end of the inlet head away from the water pipe. The diameter of the blunt head is larger than the diameter of the inlet head, and the surface of the blunt head is provided with several protrusions.

[0015] By adopting the above technical solution, the blunt head diameter is larger than the inlet head. The reaction thrust of the water flow impacts and breaks up large-volume hard blockages with a relatively short overall radial length, thereby increasing the crushing area. At the same time, the surface protrusions increase the pressure at the contact point, enhance the impact force, and improve the crushing efficiency.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model features a tapered head with a sharp tip, which greatly reduces the resistance encountered when penetrating hard deposits and viscous substances with a long radial length; the threaded connection uses a trapezoidal thread to achieve quick assembly and disassembly.

[0018] 2. This utility model uses a blunt tip with a diameter larger than the inlet head. The impact force of the water flow breaks up large-volume hard blockages with a short overall radial length, thus increasing the breaking area. At the same time, the surface protrusions increase the pressure at the contact point, enhance the impact force, and improve the breaking efficiency. The threaded connection also uses a trapezoidal thread to achieve quick assembly and disassembly.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a front view structural diagram of the inlet head according to an embodiment of the present invention;

[0022] Figure 2This is a front view structural diagram of the inlet head according to an embodiment of the present invention;

[0023] Reference numerals: 1. Water pipe; 2. Inlet head; 3. Nozzle; 4. Replacement head; 41. Conical head; 42. Blunt head; 421. Protrusion. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Reference Figure 1-2 This utility model embodiment proposes a rainwater pipe dredging device, including a water pipe 1, an inlet head 2 on the upper side of the water pipe 1, the interior of the inlet head 2 is connected to the water pipe 1, and the other end of the water pipe 1 is connected to an external high-pressure pump, through which water is pumped to the water pipe 1. The inlet head 2 is teardrop-shaped, and the diameter of the end of the inlet head 2 away from the water pipe 1 is larger than the diameter of the other end. The teardrop-shaped streamlined design can reduce the resistance of movement and avoid water turbulence caused by abrupt changes in the shape of the head.

[0026] Reference Figure 1-2 The surface of the inlet head 2 is equipped with several nozzles 3, which are connected to the water pipe 1 through the inlet head 2. The nozzles 3 are arranged in a ring on the wall surface at the largest diameter of the inlet head 2. The ring-shaped nozzles 3 form a 360° full-coverage jet, which simultaneously washes away the deposits on the top and side walls of the pipe. The nozzles 3 at the largest diameter can maximize the spray coverage radius and reduce the blind spots in dredging. The nozzles 3 are tilted towards one end of the water pipe 1, and the tilt angle of the nozzles 3 is 30°-45°. The tilt angle of the nozzles 3 generates a reverse thrust component, which propels the device forward continuously. At the same time, the tilted spray enhances the stripping effect on the hardened sludge.

[0027] Reference Figure 1-2 The inlet head 2 is also equipped with a replacement head 4, which includes a conical head 41. The conical head 41 is threadedly connected to the end of the inlet head 2 away from the water pipe 1. The front end of the conical head 41 is sharp, which greatly reduces the resistance encountered when penetrating hard deposits and viscous substances with a long radial length. The threaded connection adopts a trapezoidal thread to achieve quick assembly and disassembly.

[0028] Reference Figure 1-2The replacement head 4 also includes a blunt head 42, which is threaded to the end of the inlet head 2 away from the water pipe 1. The diameter of the blunt head 42 is larger than that of the inlet head 2. The surface of the blunt head 42 is provided with several protrusions 421. The blunt head 42 is larger than that of the inlet head 2. The reaction thrust of the water flow impacts and breaks up large-volume hard blockages with a short overall radial length, thereby increasing the breaking area. At the same time, the surface protrusions 421 increase the pressure at the contact point, enhance the impact force, and improve the breaking efficiency.

[0029] The specific implementation method is as follows: When in use, according to actual needs, the conical head 41 or the blunt head 42 is installed on the inlet head 2 by thread, the inlet head 2 is placed into the pipe, and the water pipe 1 is continuously inserted into the pipe. With the continuous entry of the water pipe 1, the conical head 41 or the blunt head 42 can continuously penetrate the dirt in the pipe. At this time, the high-pressure pump is turned on, and water will spray out from the nozzle 3, thereby cleaning the dirt in the pipe.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rainwater pipe dredging device, comprising a water pipe (1), characterized in that, The water pipe (1) has an inlet head (2) on its upper side. The inside of the inlet head (2) is connected to the water pipe (1). The surface of the inlet head (2) is provided with several nozzles (3). The inlet head (2) is also provided with a replacement head (4).

2. A rainwater pipe de-clogging device according to claim 1, characterised in that: The inlet head (2) is teardrop-shaped, and the diameter of the end of the inlet head (2) away from the water pipe (1) is larger than the diameter of the other end.

3. A rainwater pipe de-clogging device according to claim 2, characterised in that: The nozzles (3) are arranged in a ring on the wall surface at the point where the diameter of the inlet head (2) is the largest.

4. A rainwater pipe de-clogging device according to claim 3, characterised in that: The nozzle (3) is inclined toward one end of the water pipe (1).

5. A rainwater pipe de-clogging device according to claim 1, characterized in that: The replacement head (4) includes a tapered head (41) which is threaded to the end of the inlet head (2) away from the water pipe (1).

6. A rainwater pipe de-clogging device according to claim 1, characterized in that: The replacement head (4) also includes a blunt head (42), which is threaded to the end of the inlet head (2) away from the water pipe (1). The diameter of the blunt head (42) is larger than the diameter of the inlet head (2), and the surface of the blunt head (42) is provided with several protrusions (421).