Anti-blocking type desilting and sewage suction pipe set of desilting device

By designing a detachable sludge suction pipe assembly and a telescopic auger assembly, the problem of fixed position of the environmental protection auger was solved, enabling flexible crushing and solidification of sludge, improving sludge removal efficiency, and ensuring smooth negative pressure sludge removal.

CN223647128UActive Publication Date: 2025-12-09GUANGDONG ZHONGYI FOUNDATION ENG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520227543.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2025-12-09
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

The environmentally friendly cutter head in existing dredging devices is in a fixed position, which cannot be adjusted in a timely manner to flexibly break up and solidify the sludge, resulting in low dredging efficiency.

Method used

Design a clog-resistant sludge suction pipe assembly. The sludge is broken up by using a telescopic shaft and auger assembly through a detachable unit sludge suction pipe assembly. The position of the auger is adjusted by the telescopic shaft to directly break up the solidified sludge and push it into the suction pipe.

Benefits of technology

This allows for flexible adjustment of the dredging device according to the terrain, improves dredging efficiency, avoids the risk of high-pressure water flow dispersing silt, and ensures smooth negative pressure dredging.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223647128U_ABST
    Figure CN223647128U_ABST
Patent Text Reader

Abstract

The utility model is applicable to the field of desilting devices, and provides an anti-blocking desilting and sewage suction pipe group of a desilting device, which comprises a plurality of unit desilting and sewage suction pipe groups which are detachably connected with one another; the multiple unit dredging and sewage suction pipe sets are distributed side by side in an array mode. The unit desilting and sewage suction pipe set comprises a feeding auger assembly, the feeding auger assembly comprises a power device, an auger and a telescopic rotating shaft, the auger is used for crushing solidified sludge and pushing the crushed sludge into the unit desilting and sewage suction pipe set, and anti-blocking desilting is achieved; one end of the telescopic rotating shaft is assembled at the end of the auger, and the telescopic rotating shaft and the auger are linearly distributed; the other end of the telescopic rotating shaft is in power transmission connection with the power device; the telescopic rotating shaft adjusts the position of the auger through self stretching; the position of the auger is adjusted in good time to flexibly crush solidified sludge, meanwhile, the crushed sludge is pushed into the unit dredging and sewage suction pipe set, and anti-blocking type dredging is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of dredging devices, and in particular to an anti-clogging dredging suction pipe assembly for a dredging device. Background Technology

[0002] Currently, the most commonly used river dredging methods in China include traditional methods, hydraulic dredging, and environmentally friendly cutter suction dredgers. Traditional methods, also known as dry dredging, are primarily suitable for rivers that are easily drained. During dredging, the river is first blocked, and water is simultaneously drained to essentially dry the riverbed. Then, a long-arm excavator is used to dredge along both banks of the river. Hydraulic dredging, also known as semi-dry dredging, uses a stirring and suction system to agitate and pump out the dredged material, while workers assist with high-pressure water jets alongside the system. Environmentally friendly cutter suction dredgers, also known as wet dredging, work by using an environmentally friendly cutter head and a sealing device at the front of the suction pipe to cut and agitate the riverbed sediment. The agitated sediment is then transported to a storage yard via a powerful pump, allowing for continuous dredging, transport, and unloading.

[0003] When removing solidified sludge, the negative pressure adsorption technology in the prior art is difficult to solve the problem. Although there are environmentally friendly cutter blades in the prior art, their positions are fixed and cannot be adjusted in time to flexibly break up and bring in the solidified sludge for dredging. For example, the "spiral blades" described in a dredging device and dredging system in the prior art (Chinese patent, authorization announcement number CN221681936U) are located inside the "sludge conveying pipe" and cannot be adjusted in time to flexibly break up and bring in the solidified sludge for dredging.

[0004] Therefore, a clog-resistant dredging suction pipe assembly for a dredging device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an anti-clogging sludge suction pipe assembly for a sludge removal device, which aims to solve the problem that although there is an environmentally friendly auger in the prior art, the position of the environmentally friendly auger is fixed and cannot be adjusted in time to flexibly break up and bring in the solidified sludge for sludge removal.

[0006] Specifically: a dredging device with an anti-clogging dredging suction pipe assembly includes multiple unit dredging suction pipe assemblies, which are detachably connected; the multiple unit dredging suction pipe assemblies are arranged in a side-by-side array.

[0007] The unit's sludge suction pipe assembly includes a feed auger assembly, which includes:

[0008] Power unit;

[0009] The auger is used to break up solidified sludge and push the broken sludge into the unit's sludge suction pipe assembly to achieve anti-clogging sludge removal.

[0010] The telescopic shaft is mounted at one end at the end of the auger and is arranged in a straight line with the auger; the other end of the telescopic shaft is connected to the power unit for power transmission; the telescopic shaft adjusts the position of the auger by its own extension and retraction.

[0011] After adjusting the number of multiple unit dredging and suction pipe sets arranged in parallel according to the actual terrain, they are placed on the sludge. When using the unit dredging and suction pipe sets for negative pressure dredging, the power unit is started. The power unit synchronously drives the telescopic shaft and auger to rotate. After entering the area of ​​solidified sludge, the telescopic shaft adjusts the position of the auger by its own extension and retraction, so as to adjust the position of the auger in a timely manner to flexibly break up the solidified sludge. At the same time, the broken sludge is pushed into the unit dredging and suction pipe set to achieve anti-clogging dredging.

[0012] The technical solution of this application will be further described below:

[0013] In one embodiment, the unit dredging and suction pipe assembly further includes a dredging and suction pipe for connection to a vacuum truck; the dredging and suction pipe includes:

[0014] A feed pipe, which is used to connect to a vacuum truck;

[0015] A positioning cover is installed at the end of the guide tube and is connected to the guide tube;

[0016] An open suction pipe is attached to the end of a positioning cover and is connected to the positioning cover.

[0017] Furthermore, the sludge suction pipe also includes:

[0018] Two fixing plates are distributed on both sides of the open suction pipe and are integrally fixed with the open suction pipe;

[0019] Multiple fixing holes are provided for detachable connection between multiple sludge suction pipe assemblies.

[0020] In one embodiment, the power unit includes:

[0021] The motor is mounted on the unit's sludge suction pipe assembly;

[0022] The chain box contains two drive gears that rotate within it. One drive gear is fixed to a motor, and the other drive gear is fixed to a telescopic shaft. The two drive gears are connected by a chain.

[0023] In one embodiment, the telescopic pivot includes:

[0024] A storage sleeve, wherein the storage sleeve is power-driven and connected to the power unit;

[0025] An inner support rod, one end of which is movably inserted into a storage sleeve, and the other end of which is fixed to an auger;

[0026] An isolation sleeve is movably fitted onto an inner support rod, with one end of the isolation sleeve movably inserted into a receiving sleeve and the other end fixed to an auger.

[0027] Furthermore, the storage sleeve includes:

[0028] A receiving annular cavity is formed on the cylindrical wall of a receiving sleeve, and the columnar centerline of the receiving annular cavity and the columnar centerline of the receiving sleeve are on the same straight line; an isolation sleeve is movably inserted inside the receiving annular cavity;

[0029] An interpenetrating cavity is formed inside a receiving annular cavity.

[0030] Furthermore, the internal support member includes:

[0031] A hydraulic telescopic rod, which is inserted and fixed at the bottom of the insertion cavity;

[0032] An inner insert rod, one end of which is movably inserted into the insert cavity, and the other end is fixed to the auger.

[0033] The insertion cavity has multiple positioning cavities on its inner wall. These positioning cavities are arranged in a ring array on the inner wall of the insertion cavity, and each positioning cavity is single-opening. The positioning cavities are distributed along the main body direction of the insertion cavity and are parallel to the column centerline of the receiving sleeve.

[0034] The inner insertion rod has multiple limiting protrusions fixed on its outer walls, and the multiple limiting protrusions are arranged in a ring array on the outer walls of the inner insertion rod; the limiting protrusions are used to move and insert into the positioning cavity.

[0035] Therefore, by activating the hydraulic telescopic rod and adjusting its extension and retraction, the inner insert rod can be moved and inserted within the insert cavity to achieve the desired degree of movement. The telescopic shaft can then adjust the position of the auger through its own extension and retraction, allowing for timely adjustment of the auger's position to flexibly break up the solidified sludge. Simultaneously, the broken sludge is pushed into the unit's sludge suction pipe assembly, achieving anti-clogging sludge removal.

[0036] Compared with existing technologies, the anti-clogging sludge suction pipe assembly of this utility model sludge dredging device can achieve the following:

[0037] After adjusting the number of multiple unit sludge suction pipe sets arranged in parallel according to the actual terrain, they are placed on the sludge. When using the unit sludge suction pipe sets for negative pressure sludge removal, the power unit is started. The power unit synchronously drives the telescopic shaft and auger to rotate. After entering the area of ​​solidified sludge, the telescopic shaft adjusts the position of the auger by its own extension and retraction, so as to adjust the position of the auger in a timely manner to flexibly break up the solidified sludge and push the broken sludge into the unit sludge suction pipe set to achieve anti-clogging sludge removal.

[0038] Compared to the "spiral blades" described in a prior art dredging device and system (Chinese Patent, Authorization Announcement No. CN221681936U), the "spiral blades" in this application are directly located inside the "sludge conveying pipe," offering greater flexibility. They can be flexibly adjusted according to the actual solidification range of the sludge. While the prior art can break up a certain amount of solidified sludge using "high-pressure water," the high-pressure water flow pushes the sludge blocks during the flushing process, requiring continuous adjustment of the "high-pressure water" direction, which reduces dredging efficiency. Furthermore, the high-pressure water flow can disperse the sludge at the inlet, hindering negative pressure dredging. In contrast, the auger in this application can adjust its position via a telescopic shaft, acting directly on the solidified sludge. It directly breaks up the solidified sludge while simultaneously carrying the broken solidified sludge into the unit's dredging suction pipe assembly, achieving anti-clogging dredging. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the anti-clogging sludge suction pipe assembly of the sludge dredging device of this utility model;

[0041] Figure 2 for Figure 1 Schematic diagram of the dredging and suction pipe assembly in the middle unit;

[0042] Figure 3 for Figure 2 Schematic diagram of the structure of the sludge suction pipe;

[0043] Figure 4 for Figure 2 Schematic diagram of the structure of the center feed auger assembly;

[0044] Figure 5 for Figure 4 Schematic diagram of the telescopic pivot;

[0045] Figure 6 for Figure 5 Exploded view of the telescopic pivot;

[0046] Figure 7 for Figure 6 Schematic diagram of the internal support member;

[0047] Figure 8 for Figure 6 Schematic diagram of the structure of the central storage sleeve;

[0048] Figure 9 for Figure 8 A cross-sectional structural diagram of the central storage sleeve.

[0049] The codes in the attached diagram are as follows:

[0050] 1 is a unit for dredging and suction pipe assembly;

[0051] Motor 100, chain box 200, sludge suction pipe 300, feeding auger assembly 400;

[0052] Feed guide pipe 310, positioning cover 320, fixing plate 330, open suction pipe 340; auger 410, telescopic shaft 420; isolation sleeve 421, inner support rod 422, storage sleeve 423; hydraulic telescopic rod 4221, inner inserting rod 4222, limiting flange 4223; storage annular cavity 4231, positioning cavity 4232, inserting cavity 4233. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The specific implementation of the present utility model will be described in detail below with reference to specific embodiments.

[0054] In this embodiment of the utility model, such as Figure 1 , Figure 2 , Figures 4-9 As shown: A dredging device with an anti-clogging dredging suction pipe assembly includes multiple unit dredging suction pipe assemblies 1, which are detachably connected to each other; the multiple unit dredging suction pipe assemblies 1 are arranged in a side-by-side array.

[0055] Therefore, by adjusting the number of multiple units of sludge suction pipe groups 1 arranged in a parallel array, different rules of terrain can be adapted to different locations;

[0056] Unit dredging and suction pipe assembly 1 includes a feeding auger assembly 400, which includes:

[0057] Power unit;

[0058] The auger 410 is used to break up solidified sludge and simultaneously push the broken sludge into the unit sludge suction pipe assembly 1 to achieve anti-clogging sludge cleaning.

[0059] The telescopic shaft 420 is mounted at one end at the end of the auger 410 and is arranged in a straight line with the auger 410; the other end of the telescopic shaft 420 is connected to the power device for power transmission; the telescopic shaft 420 adjusts the position of the auger 410 by its own extension and retraction.

[0060] Therefore, existing negative pressure adsorption technologies are insufficient for removing solidified sludge. While existing technologies include environmentally friendly cutterheads, their fixed positions prevent them from being adjusted to flexibly break up and incorporate the solidified sludge for dredging. This application addresses this issue by:

[0061] After adjusting the number of multiple unit dredging and suction pipe sets 1 arranged in parallel according to the actual terrain, they are placed on the sludge. When using the unit dredging and suction pipe sets 1 for negative pressure dredging, the power unit is started. The power unit synchronously drives the telescopic shaft 420 and the auger 410 to rotate. After entering the area of ​​solidified sludge, the telescopic shaft 420 adjusts the position of the auger 410 by its own extension and retraction, so as to adjust the position of the auger 410 in a timely manner to flexibly break up the solidified sludge, and at the same time push the broken sludge into the unit dredging and suction pipe set 1 to achieve anti-clogging dredging.

[0062] Compared to the "spiral blades" described in a prior art dredging device and system (Chinese Patent, Authorization Announcement No. CN221681936U), the "spiral blades" in this application are directly located inside the "sludge conveying pipe," offering greater flexibility. They can be flexibly adjusted according to the actual solidification range of the sludge. While the prior art can break up a certain amount of solidified sludge using "high-pressure water," the high-pressure water flow pushes the sludge blocks during the flushing process, requiring continuous adjustment of the "high-pressure water" direction, which reduces dredging efficiency. Furthermore, the high-pressure water flow can disperse the sludge at the inlet, hindering negative pressure dredging. In contrast, the auger 410 in this application can be adjusted in position via the telescopic shaft 420, acting directly on the solidified sludge. It directly breaks up the solidified sludge while simultaneously carrying the broken solidified sludge into the unit dredging suction pipe assembly 1, achieving anti-clogging dredging.

[0063] In this embodiment of the utility model, such as Figure 2 and Figure 3 As shown: The unit dredging and suction pipe assembly 1 further includes a dredging and suction pipe 300, which is used to connect to a vacuum truck; the dredging and suction pipe 300 includes:

[0064] The feed pipe 310 is used to connect to the vacuum truck.

[0065] Positioning cover 320 is installed at the end of the guide tube 310 and is connected to the guide tube 310;

[0066] An open suction pipe 340 is attached to the end of a positioning cover 320 and is connected to the positioning cover 320.

[0067] It should be noted that the vacuum truck is existing technology, and its detailed structure can be found in existing literature and journals. It can also be purchased directly on the market, or its parts can be purchased on the market and assembled, etc. It is not what this invention is meant to protect, so it will not be described in detail here, nor is it shown in the accompanying drawings.

[0068] Furthermore, such as Figure 3 As shown: The sludge suction pipe 300 also includes:

[0069] Two fixing plates 330 are distributed on both sides of the open suction pipe 340 and are integrally fixed with the open suction pipe 340;

[0070] Multiple fixing holes are provided for detachable connection between multiple sludge suction pipe groups 1.

[0071] In this embodiment of the utility model, such as Figure 2 and Figure 3 As shown: The power unit includes:

[0072] Motor 100, which is mounted on the unit sludge suction pipe assembly 1 (specifically, motor 100 is mounted on positioning cover 320).

[0073] The chain box 200 has two drive gears rotatably mounted inside it. One drive gear is fixed to the motor 100, and the other drive gear is fixed to the telescopic shaft 420. The two drive gears are connected by a chain.

[0074] It should be noted that the motor 100 and its power supply wiring method are existing technologies. Their detailed structure can be found in existing literature and journals, and they can also be purchased directly on the market, or components can be purchased on the market to assemble them, etc. They are not what this invention is meant to protect, and will not be described in detail here, nor are they shown in the accompanying drawings.

[0075] In this embodiment of the utility model, such as Figures 5-7 As shown: The telescopic pivot 420 includes:

[0076] A storage sleeve 423 is power-transmitted to the power unit;

[0077] An inner support rod 422, one end of which is movably inserted into the storage sleeve 423, and the other end is fixed to the auger 410;

[0078] The isolation sleeve 421 is movably sleeved on the inner support rod 422. One end of the isolation sleeve 421 is movably inserted into the storage sleeve 423, and the other end is fixed to the auger 410.

[0079] Furthermore, such as Figure 6 , Figure 8 and Figure 9 As shown: The storage sleeve 423 includes:

[0080] A receiving annular cavity 4231 is formed on the cylindrical wall of a receiving sleeve 423, and the columnar center line of the receiving annular cavity 4231 and the columnar center line of the receiving sleeve 423 are on the same straight line; the isolation sleeve 421 is movably inserted inside the receiving annular cavity 4231.

[0081] Interpenetrating cavity 4233, which is formed inside receiving annular cavity 4231.

[0082] Furthermore, such as Figure 6 and Figure 7 As shown: The inner support rod 422 includes:

[0083] A hydraulic telescopic rod 4221 is inserted and fixed at the bottom of the insertion cavity 4233;

[0084] An inner insert rod 4222, one end of which is movably inserted into the insert cavity 4233, and the other end is fixed to the auger 410.

[0085] In this embodiment of the utility model, such as Figures 7-9 As shown: The insertion cavity 4233 has multiple positioning cavities 4232 on its inner wall. The multiple positioning cavities 4232 are arranged in a ring array on the inner wall of the insertion cavity 4233. The positioning cavity 4232 is single-opening. The positioning cavities 4232 are distributed along the main body direction of the insertion cavity 4233 and are parallel to the columnar centerline of the receiving sleeve 423.

[0086] like Figure 7 As shown: The inner insertion rod 4222 has multiple limiting protrusions 4223 fixed on its outer walls around its perimeter. The multiple limiting protrusions 4223 are arranged in a ring array on the outer walls of the inner insertion rod 4222. The limiting protrusions 4223 are used to move through the positioning cavity 4232.

[0087] Therefore, by activating the hydraulic telescopic rod 4221 and adjusting its extension and retraction, the inner inserting rod 4222 can move and insert within the inserting cavity 4233. This allows the telescopic rotating shaft 420 to adjust the position of the auger 410 through its own extension and retraction, enabling timely adjustment of the auger 410's position to flexibly break up the solidified sludge. Simultaneously, the broken sludge is pushed into the unit's sludge suction pipe assembly 1, achieving anti-clogging sludge cleaning.

[0088] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Although embodiments of this utility model have been shown and described in the description of this utility model, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant sludge suction pipe assembly for a sludge removal device, characterized in that, It includes multiple unit sludge suction pipe groups (1), which are detachably connected to each other; the multiple unit sludge suction pipe groups (1) are arranged in a side-by-side array; The unit sludge suction pipe assembly (1) includes a feed auger assembly (400), which includes: Power unit; The screw conveyor (410) is used to break up the solidified sludge and push the broken sludge into the unit sludge suction pipe group (1) to achieve anti-clogging sludge cleaning. The telescopic shaft (420) is mounted at one end of the auger (410) and is arranged in a straight line with the auger (410); the other end of the telescopic shaft (420) is connected to the power device by power transmission; the telescopic shaft (420) adjusts the position of the auger (410) by its own extension and retraction.

2. The anti-clogging sludge suction pipe assembly of the sludge removal device according to claim 1, characterized in that, The unit dredging and suction pipe assembly (1) further includes a dredging and suction pipe (300), which is used to connect to a vacuum truck; the dredging and suction pipe (300) includes: A feed pipe (310) is used to connect to a vacuum truck; Positioning cover (320), the positioning cover (320) is installed at the end of the guide tube (310) and is connected to the guide tube (310); An open suction pipe (340) is installed at the end of a positioning cover (320) and is connected to the positioning cover (320).

3. The anti-clogging sludge suction pipe assembly of the sludge removal device according to claim 2, characterized in that, The sludge suction pipe (300) also includes: Two fixing plates (330) are distributed on both sides of the open suction pipe (340) and are integrally fixed with the open suction pipe (340); Multiple fixing holes are provided for detachable connection between multiple sludge suction pipe assemblies (1).

4. The anti-clogging sludge suction pipe assembly of the sludge removal device according to claim 1, characterized in that, The power unit includes: The motor (100) is mounted on the unit sludge suction pipe assembly (1); A chain box (200) has two drive gears rotatably mounted inside it, one of which is fixed to a motor (100) and the other is fixed to a telescopic shaft (420); the two drive gears are connected by a chain.

5. The anti-clogging sludge suction pipe assembly of the sludge removal device according to claim 1, characterized in that, The telescopic pivot (420) includes: Storage sleeve (423), the storage sleeve (423) is power-transmittedly connected to the power device; An inner support rod (422) has one end movably inserted into a storage sleeve (423) and the other end fixed to an auger (410); An isolation sleeve (421) is movably fitted on an inner support rod (422). One end of the isolation sleeve (421) is movably inserted into a storage sleeve (423), and the other end is fixed to an auger (410).

6. The anti-clogging sludge suction pipe assembly of the sludge dredging device according to claim 5, characterized in that, The storage sleeve (423) includes: A receiving annular cavity (4231) is formed on the cylindrical wall of a receiving sleeve (423), and the columnar center line of the receiving annular cavity (4231) and the columnar center line of the receiving sleeve (423) are on the same straight line; an isolation sleeve (421) is movably inserted inside the receiving annular cavity (4231); Interpenetrating cavity (4233), which is formed inside receiving annular cavity (4231).

7. The anti-clogging sludge suction pipe assembly of a sludge removal device according to claim 6, characterized in that, The inner support member (422) includes: A hydraulic telescopic rod (4221) is inserted and fixed at the bottom of the insertion cavity (4233); An inner insert rod (4222) has one end that is movably inserted into the insert cavity (4233), and the other end that is fixed to the auger (410).

8. The anti-clogging sludge suction pipe assembly of the sludge removal device according to claim 7, characterized in that, The insertion cavity (4233) has multiple positioning cavities (4232) on its inner wall. The multiple positioning cavities (4232) are arranged in a ring array on the inner wall of the insertion cavity (4233). The positioning cavity (4232) is single-opening. The positioning cavities (4232) are distributed along the main body direction of the insertion cavity (4233) and are parallel to the column center line of the receiving sleeve (423).

9. The anti-clogging sludge suction pipe assembly of a sludge removal device according to claim 8, characterized in that, The inner insert rod (4222) has multiple limiting protrusions (4223) fixed on its outer walls around its perimeter. The multiple limiting protrusions (4223) are arranged in a ring array on the outer walls of the inner insert rod (4222). The limiting protrusions (4223) are used to move through the positioning cavity (4232).

Citation Information

Patent Citations

  • Dredging device and dredging system

    CN221681936U