Node pile cleaning device

Abstract

The utility model relates to the technical field of anti-seepage wall construction, in particular to a node pile cleaning device which comprises a machine frame, and a transverse cleaning mechanism and a longitudinal cleaning mechanism which are used for cleaning the side wall of a node pile are symmetrically installed on the two sides of the machine frame. Bottom sweeping mechanisms capable of deflecting and / or rotating in a vertical plane are symmetrically installed on the two sides of the bottom of the machine frame, and a slurry pump used for sucking slurry with sand setting is arranged at the position, located between the two bottom sweeping mechanisms, of the bottom of the machine frame. By arranging the transverse cleaning mechanism, the longitudinal cleaning mechanism and the bottom cleaning mechanism, multi-directional and multi-angle cleaning can be carried out on the side wall of the node pile, the problems that when an existing steel brush head is used for brushing and cleaning a special-shaped node pile structure, a blind area is large, cleaning is not thorough, and the structural defect of an anti-seepage wall is possibly caused are solved, the cleaning blind area is greatly reduced, and the cleaning efficiency is improved. The cleaning effect is obviously improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for the construction of anti-seepage curtain walls, and more particularly to the technical field of node pile cleaning devices for anti-seepage curtain walls, specifically to a node pile cleaning device. Background Technology

[0002] The construction of a seepage-proof curtain wall generally involves two steps: first, pouring the node piles; and second, pouring the continuous wall to connect adjacent node piles into a single structure, forming the seepage-proof wall. Since the node piles must be poured first, the sidewalls of the node piles need to be cleaned during the continuous wall pouring process to ensure a strong bond between the two. This facilitates secondary adhesion and solidification of the concrete, preventing structural defects such as delamination and gaps that could lead to leakage. Therefore, the cleaning technique for node piles during seepage-proof curtain wall construction directly affects the bonding quality between the continuous wall and the node piles, as well as the overall seepage-proof performance. Current technologies primarily employ a combination of mechanical brushing, high-pressure water jetting, and chemical treatment to clean the sidewalls of node piles. Mechanical cleaning typically uses wire brushes or rotary cutting devices to physically grind the pile surface. Existing technologies also propose a cleaning technique combining high-pressure water jets with rotating wire brushes. This combination significantly improves the cleaning effect on node piles. However, the addition of high-pressure water jets can dilute the mud in the continuous wall trench, reducing its protective effect and even causing localized borehole collapse. Therefore, high-pressure jets inevitably have some negative impacts, especially in loose construction strata, making this method unsuitable. Another approach is chemical treatment, which involves layering heavy-duty bio-enzyme cleaning agents into the mud near the node piles. This decomposes oil and organic pollutants without damaging the concrete aggregate. However, this method relies solely on its own reaction and cannot physically peel off the material, making it ineffective for cleaning node piles with thick layers of deposits.

[0003] In summary, existing node pile cleaning technologies still face several bottlenecks: First, mechanical cleaning equipment has limited effectiveness in treating micro-cracks and honeycomb pitting on the pile surface, mainly due to blind spots in the contact between the mechanical brush head and the node pile surface, resulting in cleaning residue. Second, high-pressure water jetting consumes a large amount of water (an average of 1.5 tons per linear meter), limiting its application in water-scarce areas and potentially causing uncontrolled mud concentration, affecting subsequent pouring and even leading to borehole collapse. Third, controlling the penetration depth of chemical cleaning agents is difficult, and overuse may cause alkali-aggregate reaction in the concrete. Finally, existing equipment has poor adaptability to irregularly shaped piles (such as staggered piles and cross piles), with a cleaning coverage rate of less than 85%, leading to the risk of localized debonding at the joint surface. To address these issues, a superior mechanical cleaning device is proposed as a more ideal solution to overcome the large blind spots of existing mechanical cleaning equipment. This device also solves the problems of water resource requirements for high-pressure water jet cleaning, mud dilution, and the difficulty in controlling the penetration depth of chemical cleaning agents, thus hindering the control of actual cleaning results. Utility Model Content

[0004] In order to solve the problems of the prior art described in the background, this application provides a node pile cleaning device, which cleans the node pile in multiple layers by means of pure mechanical means. This solves the problems of large blind spots and incomplete cleaning by the wire brush head of the existing mechanical cleaning equipment, as well as the adverse effects of mud dilution caused by high-pressure water jet cleaning, and the problem of difficulty in controlling the effect of chemical reagent treatment.

[0005] This invention provides a multi-dimensional, multi-layered cleaning structure by redesigning the cleaning device, which can perform all-round sidewall cleaning of the node pile sidewall. This avoids the problem of incomplete cleaning caused by blind spots in existing wire brush heads, which can lead to defects in the anti-seepage wall structure or even anti-seepage failure.

[0006] To achieve the above objectives, this utility model mainly innovates and improves the structure used for directly cleaning the surface of node piles. The specific technical solution adopted is as follows:

[0007] This utility model provides a node pile cleaning device, including a frame. A transverse cleaning mechanism and a longitudinal cleaning mechanism for cleaning the side walls of the node pile are symmetrically installed on both sides of the frame. A bottom cleaning mechanism that can deflect and / or rotate in a vertical plane is symmetrically installed on both sides of the bottom of the frame. A mud pump for sucking up mud with sediment is provided at the bottom of the frame between the two bottom cleaning mechanisms.

[0008] To achieve adjustable cleaning pressure and more even force distribution among the cleaning mechanisms, the transverse cleaning mechanism preferably includes a telescopic mechanism fixedly mounted on the frame. A motor is fixedly mounted on the telescopic end of the mechanism, and a brush head for cleaning the sidewalls of the node piles is fixedly mounted on the drive end of the motor. The telescopic mechanism allows for horizontal movement of the motor and brush head without affecting the motor's rotation to remove dirt and grime adhering to the sidewalls of the node piles. This adjusts the compressive stress between the brush head and the node pile. The greater the extension length of the telescopic mechanism, the greater the compressive force between the brush head and the node pile, resulting in better cleaning. However, this also increases the driving resistance of the motor and reduces the force on other cleaning mechanisms working in conjunction with the brush head. This is primarily for targeted cleaning of node piles in strata with stubborn deposits. When there are no strata that require special attention, the contact stress between the horizontal and vertical cleaning mechanisms and the node piles should be kept as equal as possible. This ensures that the node piles can be cleaned with relatively balanced stress when they come into contact with any cleaning mechanism, but with brush heads in different cleaning directions, thus achieving a better cleaning effect.

[0009] To facilitate installation and ensure compatibility with more motor structures and types, the drive end of the motor is either the motor's output shaft or the rotating housing. If the output shaft is connected to the brush head, then the motor rotor is fixedly connected to the output shaft; conversely, if the motor's rotating housing is connected to the brush head, then the rotor is fixedly connected to the housing, and the output shaft is the stator. This configuration aims to better accommodate motors of different structures and types, and to better balance power drive and wiring according to actual needs.

[0010] Furthermore, to improve the brushing effect, preferably, the brush head is a flat brush or a conical brush. To better integrate with the diaphragm wall and prevent cracks or misalignment at the joint where the diaphragm wall connects to the pile, existing node piles typically do not have a flat sidewall; instead, they employ an outwardly convex or inwardly concave structure. This allows for better load-bearing capacity after being cast and connected to the diaphragm wall as a single unit.

[0011] More preferably, the telescopic mechanism is any one of a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod. For ease of operation, a pneumatic telescopic rod or an electric telescopic rod with a high-pressure seal is most preferred, as this is more convenient for cleaning node piles in deep foundation pit construction and avoids the inconvenience of laying hydraulic pipelines.

[0012] To preserve the original mud quality as much as possible and prevent the introduction of more sediment during the cleaning of the node piles, the mud pump preferably has at least one vertical or downward-sloping inlet. The inlet is preferably a symmetrical inlet structure with a downward-sloping or vertically bent horizontal orientation. The slurry inlet extends obliquely or horizontally towards both sides of the frame, and a shut-off valve is installed on each side of the slurry inlet. The outlet of the mud pump is connected in a sealed manner to a slurry delivery joint located at the upper end of the frame via a rigid slurry delivery pipe built into the frame. The purpose of designing the inlet as a double-sided inlet structure with forked ends and a shut-off valve on each side of the slurry inlet is to ensure that, regardless of whether the node pile is located on the left or right side of the cleaning device, the removed sediment can be promptly pumped to the ground for mud separation and recycling, preventing an increase in the sand content of the mud and damage to the original mud properties caused by cleaning the sidewalls of the node piles. Meanwhile, since the location of the node pile on the left or right side of the cleaning device is determined before the cleaning device is lowered into the tank, it is only necessary to close the shut-off valve on the side away from the node pile. Then the mud can only enter the mud pump through the slurry inlet on the side closer to the node pile and finally be discharged to the ground through the pipeline. In this way, the normal mud can be extracted, which would lead to additional energy consumption and the problem of mud circulation and replenishment.

[0013] Furthermore, to enhance the flexibility and adjustability of the cleaning force of the longitudinal cleaning mechanism, preferably, the longitudinal cleaning mechanism includes a support that can reciprocate horizontally. A shaft of a second motor is fixedly mounted on the support, and a barrel-shaped brush is fixedly mounted on the housing of the second motor. Setting the longitudinal cleaning mechanism to an adjustable structure similar to the transverse cleaning mechanism aims to facilitate the adjustment of the brushing force, thereby targeting the removal of stubborn deposits. Since the transverse and longitudinal cleaning mechanisms rotate in different ways and directions, their effectiveness and focus in removing deposits also differ. Therefore, they complement each other, jointly contributing to the enhanced ability to remove deposits, resulting in a cleaning effect superior to existing single steel brush heads.

[0014] To better clean the sediment at the bottom of the trench and lay the foundation for sealing the bottom of the continuous wall, preferably, the bottom sweeping mechanism is rotatably hinged to the frame. The bottom sweeping mechanism is driven to deflect in both horizontal and vertical directions by a retractable hydraulic strut. The bottom sweeping mechanism serves two purposes: first, in the horizontal position, it assists in cleaning the portion of the node pile sidewall near the bottom of the trench, avoiding blind spots in cleaning; second, in the vertical position, by horizontally dragging the cleaning device, the bottom sweeping mechanism can agitate the sediment deposited at the bottom of the trench and use a mud pump to extract it to the ground, serving as a sand removal process and laying the foundation for subsequent initial concrete pouring and sealing.

[0015] Furthermore, to monitor the current status of the node pile and the actual distance between the cleaning device and the node pile in real time, thereby accurately determining the contact strength between the cleaning device and the node pile and evaluating the cleaning effect, preferably, position sensors for detecting the distance to the side wall of the node pile and multiple hooks for hoisting are also installed on the frame near both sides. Since the structures in contact with the node pile surface and used to clean the attachments are all elastic, by comparing the current actual status and structural dimensions of the cleaning device with the actual distance collected by the position sensors, the current contact state between the cleaning device and the node pile can be accurately determined, thereby allowing for real-time adjustment and prediction of the cleaning effect. To improve detection accuracy and facilitate practical installation and application, the position sensors are preferably ultrasonic sensors.

[0016] Beneficial effects:

[0017] This utility model, by setting up horizontal, vertical and bottom cleaning mechanisms, can clean the side walls of node piles from multiple directions and angles. It overcomes the problems of large blind spots and incomplete cleaning that may cause defects in the anti-seepage wall structure caused by the existing steel brush head when cleaning irregular node pile structures. It greatly reduces the cleaning blind spots and significantly improves the cleaning effect.

[0018] This utility model adopts a novel bifurcated double-sided slurry inlet structure, and each side of the slurry inlet is equipped with a shut-off valve, which can close the other side according to the actual location of the nodal piles to prevent slurry from entering. This allows the sand and gravel to be lifted to the ground in the shortest distance and time during the removal of attached sediment, thus avoiding damage to the performance of the slurry or bottom sedimentation caused by the sand and gravel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is the main structural view of this utility model.

[0021] Figure 2 yes Figure 1 The left view.

[0022] Figure 3 yes Figure 2 Full sectional view with the central section symbol AA.

[0023] Figure 4 yes Figure 1 Axonometric drawing.

[0024] Figure 5 This is a schematic diagram of the present invention during the cleaning of node piles.

[0025] Figure 6 This is a schematic diagram showing the direction of action of the mud pump during the cleaning of node piles according to this utility model.

[0026] In the diagram: 1-Frame; 2-Hook; 3-Position sensor; 4-Horizontal sweeping mechanism; 41-Motor; 42-Brush head; 43-Telescopic mechanism; 5-Longitudinal sweeping mechanism; 6-Bottom sweeping mechanism; 7-Mulch pump; 71-Mulch inlet; 72-Mulch delivery pipe; 73-Mulch delivery connector; 8-Hydraulic strut; 9-Shut-off valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example 1:

[0034] This embodiment provides a node pile cleaning device, the structure of which is as follows: Figures 1-4As shown, the system includes a frame 1. A transverse cleaning mechanism 4 and a longitudinal cleaning mechanism 5 for cleaning the sidewalls of the node piles are symmetrically installed on both sides of the frame 1. A bottom cleaning mechanism 6, capable of deflecting and / or rotating in a vertical plane, is symmetrically installed on both sides of the bottom of the frame 1. A mud pump 7 for sucking up sediment-laden mud is located at the bottom of the frame 1, between the two bottom cleaning mechanisms 6. During cleaning operations, if... Figure 5 As shown, the sidewalls of the node pile are cleaned by the simultaneous rotation of the transverse cleaning mechanism 4 and the longitudinal cleaning mechanism 5. Because the rotation methods of the transverse and longitudinal cleaning mechanisms 4 and 5 differ in their contact area, position, and cleaning direction with the node pile surface, they complement each other. Even if the node pile has an irregular shape, the cleaning blind spots are minimized, improving the cleaning effect. On the other hand, the mud pump 7, located near the cleaning area, can quickly and promptly lift the cleaned aggregates and surrounding mud to the ground for mud separation, preventing the accumulation of sediment from negatively impacting mud quality and the sediment at the bottom of the trench. Regarding the power drive method, ground pipeline connection method, and necessary power supply and communication methods of the cleaning device provided in this embodiment, they are the same as existing mechanical cleaning equipment, with no improvements made. The existing technology is assumed, and details regarding power supply, mud discharge channels, and mud replacement are not elaborated here.

[0035] Example 2:

[0036] This embodiment is a preferred embodiment of the present invention, with structural improvements in the following aspects. Specifically, to achieve adjustable cleaning pressure and more uniform force distribution on each cleaning mechanism, please refer to the appendix to the specification. Figure 1-4 As shown, the transverse cleaning mechanism 4 includes a telescopic mechanism 43 fixedly mounted on the frame 1. A motor 41 is fixedly mounted on the telescopic end of the telescopic mechanism 43, and a brush head 42 for cleaning the sidewalls of the node piles is fixedly mounted on the drive end of the motor 41. The function of the telescopic mechanism 43 is to allow the motor 41 and brush head 42 to move horizontally as a whole without affecting the rotation of the brush head 42 to remove dirt and mud adhering to the sidewalls of the node piles. This allows the compressive stress between the brush head 42 and the node pile to be adjustable. The greater the extension length of the telescopic mechanism 43, the greater the compressive force between the brush head 42 and the node pile, resulting in a better cleaning effect. However, this also increases the driving resistance of the motor 41 and reduces the force on other cleaning mechanisms that cooperate with the brush head 42. This is mainly for targeted cleaning of node piles in strata with stubborn attachments. When there are no strata that require special attention, the contact stress between the transverse cleaning mechanism 4 and the longitudinal cleaning mechanism 5 and the node pile should be kept as equal as possible. This will ensure that when the node pile comes into contact with any cleaning mechanism, it can be cleaned with relatively balanced stress, but with brush heads in different cleaning directions, thereby achieving a better cleaning effect.

[0037] To facilitate installation and ensure compatibility with more motor structures and types, the drive end of motor 41 is either its output shaft or its rotating housing. If the output shaft is connected to the brush head 42, then the rotor of motor 41 is fixedly connected to the output shaft; conversely, if the rotating housing of the motor is connected to the brush head 42, then the rotor is fixedly connected to the housing, and the output shaft is the stator. This configuration aims to better accommodate motors of different structures and types, and to better balance power drive and wiring according to actual needs.

[0038] Furthermore, to improve the brushing effect, in this embodiment, the brush head 42 is a flat brush or a conical brush. To better integrate with the diaphragm wall and prevent cracks or misalignment at the joint where the diaphragm wall connects to the pile, existing node piles typically do not have a flat sidewall; instead, they employ an outwardly convex or inwardly concave structure. This allows for better load-bearing capacity after being cast and connected to the diaphragm wall as a single unit.

[0039] Furthermore, the telescopic mechanism 43 can be any one of a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod. For ease of operation, a pneumatic telescopic rod or an electric telescopic rod with a high-pressure seal is preferred, as this is more convenient for cleaning the node piles in deep foundation pit construction and avoids the inconvenience of laying hydraulic pipelines.

[0040] To preserve the original mud quality as much as possible and avoid introducing more sediment during the cleaning of the node piles, in this embodiment, the mud pump 7 has at least one vertical or downward-sloping slurry inlet 71. The slurry inlet 71 preferably adopts a symmetrical slurry inlet structure that is downward-sloping or vertically bent and horizontal. The slurry inlet extends obliquely or horizontally towards both sides of the frame 1, and a shut-off valve 9 is provided on each side of the slurry inlet. The slurry outlet of the mud pump 7 is connected in a sealed manner to the slurry delivery joint 73 located at the upper end of the frame 1 via a rigid slurry delivery pipe 72 built into the frame 1. The slurry inlet 71 is configured as a double-sided slurry inlet structure with forked ends, and a shut-off valve 9 is provided on each side of the slurry inlet. See [reference needed]. Figure 6As shown, its function is to ensure that regardless of whether the node pile is located on the left or right side of the cleaning device, the removed sediment can be promptly pumped to the ground by the mud pump 7 for mud separation and recycling. This avoids an increase in the sand content of the mud caused by cleaning the sidewalls of the node pile, which would damage the original mud properties. Furthermore, since the location of the node pile on the left or right side of the cleaning device is determined before it is lowered into the tank, simply closing the shut-off valve 9 on the side furthest from the node pile allows the mud to enter the mud pump 7 only through the slurry inlet on the side closest to the node pile, and finally be discharged to the ground through pipelines. This avoids the need for normal mud extraction, which would otherwise lead to additional energy consumption and mud replenishment issues.

[0041] Furthermore, to enhance the flexibility and adjustability of the cleaning force of the longitudinal cleaning mechanism 5, preferably, the longitudinal cleaning mechanism 5 includes a support that can reciprocate and extend horizontally. A shaft of a second motor is fixedly mounted on the support, and a barrel-shaped brush is fixedly mounted on the housing of the second motor. The longitudinal cleaning mechanism 5 is configured with an adjustable structure similar to the transverse cleaning mechanism 4, both aimed at facilitating the adjustment of the brushing force, thereby specifically targeting the removal of stubborn deposits. Since the transverse cleaning mechanism 4 and the longitudinal cleaning mechanism 5 have different rotation methods and directions, their effectiveness and focus in removing deposits also differ. Therefore, they complement each other, jointly forming a component that enhances the ability to remove deposits, resulting in a cleaning effect superior to existing single steel brush heads.

[0042] To better clean the sediment at the bottom of the trench and lay the foundation for sealing the bottom of the continuous wall, preferably, the bottom sweeping mechanism 6 is rotatably hinged to the frame 1. The bottom sweeping mechanism 6 is driven to deflect in both horizontal and vertical directions by a telescopic hydraulic strut 8. The bottom sweeping mechanism 6 has two functions: first, when in a horizontal state, it can assist in cleaning the part of the side wall of the node pile near the bottom of the trench, avoiding blind spots in cleaning; second, when in a vertical state, by horizontally dragging the cleaning device, the bottom sweeping mechanism 6 can agitate the sediment deposited at the bottom of the trench and use the mud pump 7 to extract it to the ground, which serves as a sand removal operation, laying the foundation for the subsequent initial concrete pouring and sealing.

[0043] Furthermore, to monitor the current status of the node pile and the actual distance between the cleaning device and the node pile in real time, thereby accurately determining the contact strength between the cleaning device and the node pile and evaluating the cleaning effect, preferably, position sensors 3 for detecting the distance to the side wall of the node pile and multiple lifting hooks 2 for hoisting are also installed on the frame 1 near both sides. Since the structures in contact with the surface of the node pile and used to clean the attachments are all elastic, by comparing the current actual status and structural dimensions of the cleaning device with the actual distance collected by the position sensors 3, the current contact state between the cleaning device and the node pile can be accurately determined, thereby allowing for real-time adjustment and prediction of the cleaning effect. To improve detection accuracy and facilitate actual installation and application, the position sensors 3 are preferably ultrasonic sensors.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A node pile cleaning device, characterized by: The frame (1) includes a horizontal cleaning mechanism (4) and a vertical cleaning mechanism (5) for cleaning the sidewalls of the node piles, which are symmetrically installed on both sides of the frame (1). Bottom cleaning mechanisms (6) that can deflect and / or rotate in the vertical plane are symmetrically installed on both sides of the bottom of the frame (1). A mud pump (7) for sucking up mud with sediment is provided at the bottom of the frame (1) between the two bottom cleaning mechanisms (6).

2. A node pile cleaning device according to claim 1, characterized in that: The transverse cleaning mechanism (4) includes a telescopic mechanism (43) fixedly installed on the frame (1). A motor (41) is fixedly installed at the telescopic end of the telescopic mechanism (43), and a brush head (42) for cleaning the side wall of the node pile is fixedly installed at the drive end of the motor (41).

3. A node pile cleaning device according to claim 2, characterised in that: The driving end of the motor is the motor's output shaft or a rotating housing.

4. A node pile cleaning device according to claim 2, characterised in that: The brush head (42) is a flat brush or a conical brush.

5. A node pile cleaning device according to claim 2, characterised in that: The telescopic mechanism (43) is any one of a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod.

6. A node pile cleaning device according to claim 1, characterized in that: The mud pump (7) has at least one vertical or downward inclined inlet (71), and the outlet of the mud pump (7) is sealed to the slurry delivery joint (73) located at the upper end of the frame (1) through a rigid slurry delivery pipe (72) built into the frame (1).

7. A node pile cleaning device according to claim 6, characterised in that: The slurry inlet (71) adopts a symmetrical slurry inlet structure that is inclined downward or bent vertically into a horizontal state. The slurry inlet extends inclined or horizontally to both sides near the frame (1), and a shut-off valve is provided on either side of the slurry inlet.

8. A node pile cleaning device according to any one of claims 1-7, characterized in that: The longitudinal cleaning mechanism (5) includes a bracket that can reciprocate and extend in the horizontal direction, on which the shaft of a second motor is fixedly mounted, and on the housing of the second motor is a barrel-shaped brush.

9. A node pile cleaning device according to claim 1, characterized in that: The bottom sweeping mechanism (6) is rotatably hinged to the frame (1). The bottom sweeping mechanism (6) is driven to deflect in the horizontal and vertical directions by a retractable hydraulic strut (8).

10. A node pile cleaning device according to claim 1, characterized in that: The frame (1) is also equipped with position sensors (3) for detecting the distance from the side wall of the node pile, and multiple hooks (2) for hoisting.

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