Dredging device for drainage pipeline with small pipe diameter

Abstract

The utility model discloses a small-pipe-diameter drainage pipeline desilting device which is characterized in that the small-pipe-diameter drainage pipeline desilting device comprises a desilting frame, the desilting frame comprises a framework and a center connecting rod, a cutting tool bit is arranged at the front end of the framework, a spiral blade is fixed to the center connecting rod, and the tail end of the center connecting rod is connected with a filter plate; traction rings connected with a steel wire rope are arranged at the two ends of the framework, and the steel wire rope is connected with a power device. By means of the innovative structural design, the defects in dredging of small-pipe-diameter drainage pipelines in the prior art are overcome, and a solution which is efficient, safe and good in dredging effect is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of municipal engineering drainage pipe network maintenance, and specifically relates to a small pipe diameter drainage pipeline dredging device. BACKGROUND

[0002] In the field of urban underground drainage pipe network maintenance, the current commonly used dredging methods include sewage suction truck dredging, traditional high-pressure water gun flushing method, and manual dredging method. Sewage suction truck dredging mainly achieves dredging by sucking up sewage, sludge, and other absorbable debris in the suction pipe, but the cleaning effect is not complete for larger garbage and debris, which can easily cause secondary blockage. The traditional high-pressure water gun flushing method has poor cleaning effect on solidified sediments (such as kitchen waste clumps), and needs to be repeated, consumes a large amount of water, and has low dredging efficiency. Manual dredging method has high safety risk, especially in small pipe diameter drainage pipelines with a pipe diameter less than DN400, due to the narrow space and harsh working environment, it is difficult to implement and may pose a threat to the life safety of the workers.

[0003] CN116378151A proposes a water conservancy project dredging equipment, which realizes efficient cleaning of the sludge in the riverbed by setting a dredging head including a main shell, a first filter plate, a second filter plate, and a crushing unit. The equipment avoids the blockage of the dredging pipe and improves the dredging efficiency through the design of secondary filtration and crushing unit. However, this technology is mainly designed for the sludge cleaning at the bottom of the riverbed in the field of water conservancy, and its structural design is different from the actual needs of urban underground drainage pipe network, so it is difficult to be directly applied to the dredging operation of urban underground drainage pipe network.

[0004] CN114277918A provides a drainage pipeline dredging device using horizontal directional drilling, which realizes non-excavation dredging of the drainage pipeline through horizontal directional drilling machine, high-pressure water pump, sludge conveying device, and other components. The device does not require personnel to enter the pipeline, uses high-pressure nozzles and cutting discs to cut and soften the sludge, and then uses the sludge conveying device to pump out the sludge. Although this technology improves the dredging efficiency and safety to some extent, its design is mainly aimed at large pipe diameter drainage pipelines, and has limited applicability to small pipe diameter pipelines, and cannot be directly applied to the dredging operation of small pipe diameter drainage pipelines.

[0005] In summary, the existing technical solutions have significant limitations in small pipe diameter pipeline dredging. The existing technology cannot efficiently, safely, and completely clean the sludge and debris in small pipe diameter drainage pipelines. To address this problem, there is an urgent need to develop a dredging device specifically designed for small pipe diameter drainage pipelines to meet the urgent needs of the market, industry, and users for efficient, safe, and complete dredging technology. The device should have a structural design suitable for small pipe diameter pipelines, effectively address the shortcomings of existing technology in small pipe diameter pipeline dredging, and thus promote the progress of urban underground drainage pipe network maintenance and management technology. Practical new type content

[0006] The utility model discloses a small pipe diameter drainage pipeline dredging device to overcome the insufficient of the prior art that small pipe diameter drainage pipeline is difficult to dredge.

[0007] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A small pipe diameter drainage pipeline dredging device, including dredging frame, the dredging frame includes the skeleton and the center connecting rod, the skeleton front end is provided with cutting knife head, the center connecting rod is fixed with spiral blade, and the center connecting rod tail end is connected with filter plate.

[0009] The both ends of the skeleton are provided with traction rings connected with steel wire ropes, and the steel wire ropes are connected with power devices.

[0010] The cutting knife head is detachably fixed on the center connecting rod.

[0011] The cutting knife head is wedge-shaped, and the blade angle is 30°-45°.

[0012] The spiral blade is fixed in the middle of the dredging frame through the center connecting rod.

[0013] A plurality of spiral blades are fixed on the center connecting rod, and the distance between the spiral blades is 150-200mm.

[0014] The power device is arranged at the upstream and downstream inspection wells of the pipeline.

[0015] The power device includes a winch arranged at the upstream inspection well and a guide pulley arranged at the downstream inspection well, and the steel wire rope is wound around the guide pulley to form a closed loop.

[0016] The filter plate is welded at the tail end of the center connecting rod, and the filter plate is a grid plate with a pore size of 8-12mm.

[0017] The skeleton of the dredging frame is conical, and the maximum diameter thereof allows the DN400 pipeline to pass through.

[0018] The device further includes an auxiliary flushing system, and the auxiliary flushing system is a high-pressure water gun arranged at the downstream inspection well.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] The small-diameter drainage pipeline dredging device provided by the utility model has the advantages that the unique structural design effectively solves the deficiencies of the prior art in small-diameter drainage pipeline dredging, the cutting tool head is arranged at the front end of the framework and can efficiently break the solidified deposits in the pipeline, the wedge-shaped design and the optimized blade angle enable the device to easily deal with hard deposits, and thus the problem of incomplete dredging in the prior art is solved.

[0021] The spiral blade is fixed on the center connecting rod and pushes the broken deposits to the inspection well through rotation. The design ensures that the deposits can be efficiently removed from the pipeline, avoids the secondary blockage problem caused by deposit accumulation in the prior art, the filter plate is connected to the tail end of the center connecting rod and can effectively intercept solid impurities, so that the sewage can be smoothly discharged, the secondary pollution to the downstream pipeline is reduced, and the completeness of the dredging effect is ensured.

[0022] The traction ring arranged at both ends of the framework is connected to the power device through the steel wire rope, and the power device comprises a winch and a guide pulley. The design avoids manual well operation, reduces the safety risk, and ensures stable operation of the device in the pipeline. The dredging frame is formed by steel welding, is structurally firm and suitable for the small-diameter DN400 pipeline, ensures that the device can stably operate under complex working conditions, and overcomes the limitations of the prior art in small-diameter pipeline dredging.

[0023] In summary, the small-diameter drainage pipeline dredging device provided by the utility model overcomes the deficiencies of the prior art in small-diameter drainage pipeline dredging through the innovative structural design, and provides an efficient, safe and good dredging effect solution. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a whole structure schematic view of the small-diameter drainage pipeline dredging device in the utility model embodiment.

[0025] Fig. 2 It is a side view of the dredging frame of the small-diameter drainage pipeline dredging device in the utility model embodiment.

[0026] Fig. 3 It is a front view of the dredging frame of the small-diameter drainage pipeline dredging device in the utility model embodiment.

[0027] In the figure, 1 is a dredging frame, 2 is a cutting tool head, 3 is a spiral blade, 4 is a filter plate, 5 is a steel wire rope, 6 is a power device, 7 is an auxiliary flushing system, 10 is a framework, 11 is a center connecting rod, and 12 is a traction ring. DETAILED DESCRIPTION

[0028] With the acceleration of urbanization, urban underground drainage pipe network is facing severe maintenance challenges. In the daily maintenance and management of urban underground pipe network, pipe dredging and dredging are important measures to ensure the normal operation and safety of drainage facilities. However, the existing dredging technology has many defects. For larger diameter municipal pipe dredging construction, the pipe is first blocked, and then the sewage, sludge, sand and other absorbable impurities in the pipe are sucked out by the sewage suction truck. Larger garbage is cleaned out of the pipe from the inspection well by manual auxiliary method.

[0029] For smaller diameter pipes, the main method of dredging is to use a sewage suction truck. However, the sewage suction truck cannot completely clean larger garbage, which can cause secondary blockage. The traditional high-pressure water gun flushing method has poor cleaning effect on solidified deposits such as kitchen waste clumps, requires repeated operation, consumes a large amount of water, and has low dredging efficiency. Manual dredging requires workers to dredge in the well, which is high-risk and cannot be implemented for small-diameter drainage pipes with a diameter less than DN400. Therefore, a dredging device that is efficient, safe, has good dredging effect and is mainly used for small-diameter drainage pipes is needed.

[0030] Based on the above background, the present application provides a small-diameter drainage pipe dredging device. Through innovative design and optimized structure, the device overcomes the shortcomings of the prior art and provides a dredging solution specifically for small-diameter pipes to meet the new needs of the market, industry and users for efficient, safe and complete dredging technology. The device combines advanced dredging technology and safety design to efficiently clean small-diameter pipes and promote the development of urban underground drainage pipe network maintenance and management technology.

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more than two, unless otherwise explicitly specified and limited.

[0035] Referring to Figs. 1 to 3 The small-diameter drainage pipeline dredging device provided by the present application is shown as one specific embodiment, which comprises a dredging frame 1, a skeleton 10, a center connecting rod 11, a cutting tool bit 2, a spiral blade 3, a filter plate 4, a traction ring 12, a steel wire rope 5 and a power device 6. The dredging frame 1 is welded by steel materials, and is shaped to fit the small-diameter pipeline of DN200 to DN400, providing a stable foundation for the entire device. The skeleton 10 is provided with a cutting tool bit 2 at the front end, which has a wedge-shaped design and a blade angle of 30° to 45°, so that it can efficiently break up the solidified deposits in the pipeline. The center connecting rod 11 is fixed on the skeleton 10, not only serving as a connecting function, but also providing installation positions for the spiral blade 3 and the filter plate 4.

[0036] The spiral blade 3 is installed on the center connecting rod 11 and pushes the broken deposits along the pipeline to the inspection well through rotation. The pitch between the spiral blades 3 is designed to be 150 to 200 mm, ensuring the pushing efficiency. The filter plate 4 is welded at the tail end of the center connecting rod, which has a grid plate structure and a pore size of 8 to 12 mm, effectively intercepting solid impurities of larger particle size, allowing sewage to pass through the filter hole and reducing secondary pollution to the downstream pipeline.

[0037] The skeleton 10 is provided with a traction ring 12 at both ends, which is connected to the power device 6 through a steel wire rope 5. The power device 6 includes a winch at the upstream inspection well and a guide pulley at the downstream inspection well. The steel wire rope 5 passes through the guide pulley to form a closed loop, driving the dredging frame 1 to move back and forth in the pipeline. This design avoids manual well operation, reduces safety risks, and improves dredging efficiency.

[0038] In addition, the device is also equipped with an auxiliary flushing system 7, namely a high-pressure water gun, which is arranged at the downstream inspection well. During the dredging process, the high-pressure water gun forms a fan-shaped flushing area to flush the pipe wall and the sediment, further improving the dredging effect and reducing the consumption of water resources.

[0039] The dredging frame 1, the cutting bit 2, the spiral blade 3 and the filter plate 4 are all designed to be detachable, and the specifications can be adjusted according to the site conditions to adapt to pipelines of different diameters and materials. This modular design not only improves the versatility of the device, but also reduces maintenance costs. The device can be made of waste steel, which meets the green construction concept and reduces the maintenance cost of municipal pipe networks.

[0040] In actual operation, according to the material and diameter of the pipeline to be dredged, the appropriate cutting bit 2 and filter plate 4 are selected and installed at both ends of the frame through quick-release bolts. The spiral blade 4 is sleeved on the center connecting rod 11 and fixed with a lock nut. The steel wire rope 5 connects the frame traction ring 12 with the winch to ensure uniform tension. The winch is placed in the upstream inspection well, and the guide pulley is arranged in the downstream inspection well. The steel wire rope passes through the pulley to form a closed loop. Starting the winch drives the dredging main body to reciprocate in the pipeline, the cutting bit 2 breaks the sediment, the high-pressure water gun flushes the pipe wall, the spiral blade 3 pushes the debris, and the filter plate 4 separates the sewage and solids, realizing efficient, safe and environmentally friendly dredging operation.

[0041] The dredging device significantly improves the dredging efficiency of small-diameter drainage pipelines through the synergistic effect of mechanical crushing and hydraulic flushing. Its compact design and modular structure facilitate transportation and storage, providing an efficient, economical and safe solution for the dredging of small-diameter drainage pipelines in urban underground drainage networks.

[0042] In order to make the scheme in the utility model more convenient to understand, the specific implementation of a small-diameter drainage pipeline dredging device is provided in combination with the actual use scene.

[0043] In the maintenance operation of urban underground drainage pipe network, for DN200 to DN400 small-diameter drainage pipelines, the dredging device can efficiently and safely complete the dredging task. When the pipeline accumulates a large amount of sludge and debris due to long-term use, affecting the drainage efficiency, the device shows its unique advantages.

[0044] Before starting the operation, the technician selects the appropriate wedge-shaped cutting bit 2 and grid filter plate 4 from the tool library according to the specific material and diameter of the pipeline. These components are quickly installed at both ends of the dredging frame 1 through quick-release bolts, ensuring stability in complex working conditions. The spiral blade 3 is accurately sleeved on the center connecting rod 11 and locked with a lock nut, completing the work preparation.

[0045] The traction rings 12 at both ends of the dredging frame 1 are connected to the power device 6 through steel wires 5 with a diameter of 8-12 mm. The power device 6 includes a winch at the upstream inspection well and a guide pulley at the downstream inspection well. The winch is equipped with a variable frequency speed regulation device, which can flexibly adjust the operating speed according to the actual situation in the pipeline. The steel wire 5 passes through the guide pulley to form a closed loop, providing stable power for the reciprocating movement of the dredging frame 1 in the pipeline.

[0046] After everything is ready, the technician starts the winch, and the dredging frame 1 enters the pipeline. At the same time, the high-pressure water gun at the downstream inspection well is also turned on, forming a fan-shaped flushing area, and pre-flushing the pipe wall to prepare for the subsequent dredging work.

[0047] Inside the pipeline, the dredging frame begins its efficient operation. The wedge-shaped cutting bit 2 breaks up the solidified deposits at an angle of 30° to 45°. The spiral blade 3 pushes the broken debris to the inspection well with a pitch of 150 to 200 mm. The grid filter plate 4 intercepts larger particles with a pore size of 8 to 12 mm, allowing sewage to flow smoothly through the filter holes, reducing secondary pollution to the downstream pipeline.

[0048] During the entire dredging process, the technician closely monitors the situation inside the pipeline and controls the variable frequency speed regulation device of the winch to ensure that the dredging frame 1 moves back and forth in the pipeline for dredging work. The flow intensity and angle of the high-pressure water gun can also be adjusted to meet the dredging needs at different positions.

[0049] As the dredging work progresses, the sludge and debris in the pipeline are gradually cleaned up. The technician observes the clarity of the sewage to determine whether the dredging has achieved the desired effect. Once it is confirmed that the dredging is complete, the technician will gradually shut down the equipment and remove the dredging frame from the pipeline.

[0050] Finally, the technician cleans and maintains the filter plate 4 and the cutting bit 2 to ensure that the device can be put into use at any time. The entire dredging process is not only efficient and safe, but also significantly reduces water consumption, demonstrating its environmental advantages.

[0051] This dredging device, with its outstanding performance and adaptability, provides a reliable solution for the dredging work of urban underground small-diameter drainage pipelines, ensuring the smooth operation of the urban drainage system.

[0052] The utility model provides a small pipe diameter drainage pipeline dredging device, through the innovative structural design, effectively solved the prior art in small pipe diameter drainage pipeline dredging deficiency. The device includes dredging frame 1, it is by steel material welding forming, shape adaptation DN200 to DN400 small pipe diameter pipeline, ensure that the stable operation of device in the pipeline. The skeleton 10 of dredging frame 1 front end is provided with cutting knife head 2, can efficiently break the solidified deposit in the pipeline. Center connecting rod 11 is fixed with spiral blade 3, through rotation pushes the deposit after breaking to inspection well, significantly improves dredging efficiency. The filter plate 4 connected to tail end effectively intercepts solid sundries, lets sewage smoothly discharge, reduces secondary pollution to downstream pipeline.

[0053] The traction ring 12 set up at both ends of the skeleton 10 is connected with the power device 6 through the steel wire rope 5, and the power device 6 includes a winch at an upstream inspection well and a guide pulley at a downstream inspection well. The winch drives the dredging frame to reciprocate in the pipeline, and the steel wire rope 5 forms a closed loop by passing through the guide pulley, ensuring the stability of the device operation. This design avoids manual well operation, reduces safety risks, and simultaneously adjusts the running speed flexibly through a frequency conversion speed regulating device, further improving the safety and efficiency of the operation.

[0054] In addition, the auxiliary flushing system 7 equipped with the device forms a fan-shaped flushing area through a high-pressure water gun, pre-flushes the pipe wall, reduces the consumption of water resources, and simultaneously improves the dredging effect. The cutting knife head 2, the spiral blade 3 and the filter plate 4 adopt a detachable design, which can adjust the specifications according to the site conditions and reduce the maintenance cost. The device can be made of waste steel, which meets the green construction concept and reduces the municipal pipe network maintenance cost.

[0055] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A small diameter sewer pipe de-clogging device, characterized by, The utility model relates to a dredging frame (1) comprising a skeleton (10) provided with a cutting head (2) at the front end and a central connecting rod (11) fixed with helical blades (3), the tail end of the central connecting rod (11) being connected with a filter plate (4). The skeleton (10) is provided with a traction ring (12) connected with a steel wire rope (5) at both ends, and the steel wire rope (5) is connected with a power device (6).

2. A small diameter sewer pipe cleaning device according to claim 1, wherein, The cutting head (2) is detachably fixed on the central connecting rod (11).

3. A small diameter sewer pipe cleaning device as defined in claim 2, wherein, The cutting head (2) is wedge-shaped, and the blade angle is 30-45 degrees.

4. A small diameter sewer pipe cleaning device as defined in claim 1, wherein, The helical blades (3) are fixed in the middle of the dredging frame (1) through the central connecting rod (11).

5. A small diameter sewer pipe cleaning device as defined in claim 4, wherein, A plurality of helical blades (3) are fixed on the central connecting rod (11), and the distance between the helical blades (3) is 150-200 mm.

6. A small diameter sewer pipe cleaning device as defined in claim 1 wherein, The power device (6) is arranged at the upstream and downstream inspection wells of the pipeline.

7. A small diameter drain pipe cleaning device as defined in claim 6, wherein, The power device (6) comprises a winch arranged at the upstream inspection well and a guide pulley arranged at the downstream inspection well, and the steel wire rope (5) passes through the guide pulley to form a closed loop.

8. A small diameter sewer pipe cleaning device according to claim 1, wherein, The filter plate (4) is welded at the tail end of the central connecting rod (11), and the filter plate (4) is a grid plate with a pore size of 8-12 mm.

9. A small diameter sewer pipe cleaning device as defined in claim 1 wherein, The skeleton (10) of the dredging frame (1) is conical, and the maximum diameter allows the passage of a DN400 pipeline.

10. A small diameter sewer pipe cleaning device as defined in claim 1 wherein, An auxiliary flushing system (7) is further included, which is a high-pressure water gun arranged at the downstream inspection well.

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