Bottom cleaning equipment for pile foundation engineering

Abstract

The invention discloses pile foundation engineering bottom cleaning equipment, and relates to the technical field of pile foundation bottom cleaning. The pile foundation engineering bottom cleaning equipment comprises a mounting column, an outer supporting part is mounted outside the mounting column, the outer supporting part is used for abutting against the inner wall of a pile foundation in the bottom cleaning operation process, the lower end of the mounting column is fixedly connected with a mounting disc through a guiding and drawing cylinder, and a plurality of entering grooves corresponding to shifting and gathering parts are formed in the outer wall of the circumference of a ring cylinder at equal intervals; a driving part is jointly mounted between the annular cylinder and the mounting disc, a material pumping part is jointly arranged between the guide pumping cylinder and the mounting disc, a circulating pipeline part is jointly arranged between the mounting column and the mounting disc, and the circulating pipeline part is used for introducing slurry into the pile foundation, and separated small-particle sediments are brought out of the pile foundation through circulating flow of the slurry. According to the bottom cleaning method, through the bottom cleaning mode of combining ordered stirring and gathering, dynamic grading and branch-path cleaning, it is ensured that the sediment in the pile foundation is thoroughly cleaned, and the disturbance risk to the hole wall of the pile foundation in the bottom cleaning process is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pile foundation cleaning, in particular to a pile foundation engineering cleaning device. BACKGROUND

[0002] Pile foundation cleaning is an important link in the process of pile foundation construction, which is a process of cleaning the pile bottom after the pile hole is formed. The main purpose is to remove the residual sediment and other sundries at the pile bottom, ensure the cleanliness of the pile bottom, and provide a good foundation condition for subsequent concrete pouring construction.

[0003] The existing pile foundation cleaning methods mainly include circulating slurry replacement cleaning and mechanical cleaning drilling. The circulating slurry replacement cleaning method depends greatly on the performance of the slurry, and the sediment removal effect is obviously affected by factors such as slurry density, viscosity and flow rate. Since the carrying capacity of the slurry itself for large particle sediment is limited, it is difficult to effectively carry out large particle sediment out of the hole bottom, which is easy to cause large particle sediment to remain in the pile foundation. Although the carrying capacity for large particle sediment can be enhanced to some extent by increasing the slurry flow rate and consistency, when the slurry flow rate is too fast, it is easy to cause erosion to the bottom and sidewall of the pile foundation, thereby causing hole wall instability and even wall collapse and other safety hazards. In addition, during the circulation of the slurry in the pile hole, the continuous impact of the slurry on the sediment particles at the hole bottom will cause the sediment particles to roll and migrate in disorder, resulting in more disordered distribution of the sediment at the hole bottom, which not only makes it difficult to achieve directional removal of the sediment, but also affects the cleaning effect of the pile bottom.

[0004] On the other hand, although the mechanical cleaning drilling method can disturb and remove the sediment at the hole bottom through mechanical action, since the cleaning drill is easy to push the sediment to the edge of the hole bottom during rotation, it does not play an effective transport and movement role in driving the sediment to move at the hole bottom, resulting in continuous accumulation of sediment at the corner area of the pile bottom, thereby forming a cleaning blind area and leading to incomplete cleaning. SUMMARY

[0005] The present application provides a pile foundation engineering cleaning device, which solves the technical problems that the existing pile foundation cleaning methods mainly include circulating slurry replacement cleaning and mechanical cleaning drilling, the circulating slurry replacement cleaning method has strong dependence on the performance of the slurry, and has limited capacity for removing large particle sediment, and increasing the slurry flow rate and consistency is easy to cause hole wall erosion and disordered migration of sediment, affecting the cleaning effect, and the mechanical cleaning drilling method is easy to push the sediment to the edge of the hole bottom during rotation, forming a cleaning blind area and leading to incomplete cleaning.

[0006] This invention provides a pile foundation cleaning device, comprising an installation column, an external support portion installed on the outside of the installation column, which is used to contact the inner wall of the pile foundation during the cleaning operation to provide radial positioning and protection for the inner wall of the pile foundation. An installation plate is fixedly connected to the lower end of the installation column via a guide tube. A ring cylinder is rotatably connected to the outside of the installation plate. Several adjustable actuation parts are equidistantly installed circumferentially on the ring cylinder. Several entry slots corresponding to the actuation parts are equidistantly opened on the outer circumference of the ring cylinder. A driving unit is installed between the ring cylinder and the installation plate. During the cleaning operation, the driving unit... The moving part drives the ring cylinder to rotate, causing the agglomerating part to rotate circumferentially along the bottom of the pile foundation cavity. This agglomerates the sediment at the bottom of the pile foundation cavity from the outside to the inside and concentrates it into the ring cylinder. Then, the agglomerating part further separates the sediment according to the different particle sizes. A material extraction part is provided between the guide cylinder and the installation plate. The material extraction part is used to extract and collect the large particles of sediment after separation. A circulation pipeline is provided between the installation column and the installation plate. The circulation pipeline is used to introduce mud into the pile foundation. The small particles of sediment after separation are carried out of the pile foundation through the circulation of the mud, so as to clean the sediment of different particle sizes separately.

[0007] In one possible implementation, the agglomeration unit includes a scraper fixedly connected to the annular cylinder by an interlocking method, and the scraper is inclined. A scraper sleeve is slidably connected to the outside of the scraper. A limit spring is fixedly connected between the scraper and the scraper sleeve. A height measuring groove is opened on the lower part of the scraper on one side of the annular cylinder cavity. The height measuring groove is used to classify and limit the size of the sediment entering the annular cylinder.

[0008] In one possible implementation, the circulation pipeline section includes two pump bodies that are symmetrically fixed to the mounting column by a bracket. The pump body on the left is connected to an extraction pipe, the lower end of which is fixedly connected to the mounting plate. The pump body on the right is connected to an inlet pipe.

[0009] In one possible implementation, the outer support includes an electric slip ring, a push rod, a connecting rod assembly, and an arc-shaped expansion plate. Several connecting rod assemblies are equidistantly hinged to the outer circumference of the mounting column. Each connecting rod assembly has an arc-shaped expansion plate hinged to its end away from the mounting column. Each connecting rod assembly consists of two parallel connecting rods. In each connecting rod assembly, a push rod is hinged to the middle of the upper connecting rod. An electric slip ring is slidably connected to the outside of the mounting column, and the upper end of the push rod is hinged to the outside of the electric slip ring.

[0010] In one possible implementation, the material extraction section includes a No. 1 drive motor fixedly connected to the inner cavity of the guide extraction cylinder. A spiral blade is fixedly connected to the outer wall of the output rod of the No. 1 drive motor. The guide extraction cylinder has several feed slots equidistantly opened on the outer wall of the inner cavity section of the annular cylinder.

[0011] In a possible implementation, the driving part comprises a second driving motor fixedly connected to the mounting disc by embedding, an annular groove is formed in the outer wall of the mounting disc, an empty groove is formed in the inner part of the mounting disc and communicated with the annular groove, a gear ring is fixedly connected to the inner wall of the annular groove, and a gear is fixedly connected to the end of the output shaft of the second driving motor and engaged with the gear ring.

[0012] In a possible implementation, the scraper sleeve is gradually inclined towards the axis of the ring cylinder from top to bottom at the lower half of the side away from the scraper.

[0013] In a possible implementation, the guide cylinder is slidably connected with a lower opening temporary cylinder by spline fitting, the inner wall of the inner cavity section of the guide cylinder is symmetrically provided with a discharge groove, and the upper end surface of the mounting disc is provided with a recess corresponding to the profile shape of the lower end side of the temporary cylinder.

[0014] From the above technical solutions, the present application has the following advantages: in the present application, the pile foundation sediment is orderly and dynamically classified and treated from outside to inside by the stirring part, and the classified sediment of different particle sizes is cleaned by the circulating pipeline part and the material extraction part, while the pile foundation hole wall is positioned and protected by the external supporting part, so that the pile foundation bottom sediment is efficiently and completely removed without disturbing the hole wall, and the reliability of the bottom cleaning operation is improved.

[0015] In the present application, the small particle sediment separated is continuously and orderly collected from outside to inside to the circulating pipeline part under the action of the stirring part, so that the circulating mud can effectively suck and carry away the small particle sediment under the condition of low flow rate, the dependence of the bottom cleaning effect on the performance parameters such as mud density, viscosity and flow rate is reduced, the disorderly impact and random migration of the hole bottom sediment during the mud circulation are avoided, the directionality and controllability of sediment cleaning are improved, the disturbance risk of the pile foundation hole wall is reduced while ensuring the bottom cleaning effect.

[0016] In the present application, the large particle sediment separated is continuously and orderly collected from the edge to the center of the pile foundation bottom under the action of the stirring part, and is introduced into the material extraction part for centralized collection, so that the movement trend of the sediment in the traditional mechanical bottom cleaning process is changed, i.e., the sediment is easily stirred and accumulated at the edge of the hole bottom, the cleaning blind area is avoided at the edge and corner area of the pile foundation bottom, the large particle sediment can be actually removed, and the thoroughness and stability of the bottom cleaning operation are improved.

[0017] In the present application, the arc-shaped expansion plates distributed in the circumferential direction of the outer support part are expanded outward and top the pile foundation hole wall, which on the one hand forms physical shielding and support to the hole wall during the cleaning operation, weakens the direct scouring effect of the circulating mud on the hole wall, reduces the disturbance and instability risk of the hole wall, and on the other hand, radially positions the cleaning equipment, enhances the stability of the whole equipment during the cleaning operation, provides stable working conditions for the coordinated operation of the pile gathering part, the circulating pipeline part and the pumping part, thereby ensuring the stability of the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0019] Figure 1 The pile foundation engineering cleaning equipment structure provided by the present application is shown in the figure.

[0020] Figure 2 The outer support part installation structure provided by the present application is shown in the figure.

[0021] Figure 3 The pile gathering part and ring cylinder connection structure provided by the present application is shown in the figure.

[0022] Figure 4 The ring cylinder bottom view structure provided by the present application is shown in the figure.

[0023] Figure 5 The pumping part cross-sectional structure provided by the present application is shown in the figure.

[0024] Among them, the above drawings include the following reference signs: 1, mounting column; 2, outer support part; 21, electric sliding ring; 22, jacking rod; 23, connecting rod set; 24, arc-shaped expansion plate; 3, guide pumping cylinder; 4, mounting disc; 5, ring cylinder; 6, pile gathering part; 61, scraper; 62, scraper sleeve; 63, height measuring groove; 7, inlet groove; 8, pumping part; 81, No. 1 driving motor; 82, spiral stirring blade; 83, feeding groove; 84, temporary storage cylinder; 85, discharging groove; 9, circulating pipeline part; 91, pumping pipe; 92, guide pipe; 10, gear ring; 11, gear. DETAILED DESCRIPTION

[0025] For the above-mentioned purposes, features and advantages of the present application to be more apparent and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways from those described herein without departing from the spirit and scope of the present application, and those skilled in the art can make similar improvements without departing from the spirit and scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0026] Please refer to Figure 1 , Figure 4 and Figure 5 , the present application provides a technical solution: a pile foundation engineering bottom cleaning equipment, comprising a mounting column 1, the outer mounting column 1 is provided with an outer support 2, the outer support 2 is used for touching the inner wall of the pile foundation during the bottom cleaning operation, so as to play a role in radial positioning and protecting the inner wall of the pile foundation, the lower end of the mounting column 1 is fixedly connected with a guide extraction cylinder 3, the guide extraction cylinder 3 is fixedly connected with a mounting disc 4, the mounting disc 4 is rotatably connected with a ring cylinder 5 outside, a plurality of adjustable stirring range stirring parts 6 are installed on the ring cylinder 5, a plurality of entering grooves 7 corresponding to the stirring parts 6 are equidistantly arranged on the circumferential outer wall of the ring cylinder 5, a driving part is jointly arranged between the ring cylinder 5 and the mounting disc 4, during the bottom cleaning operation, the driving part drives the ring cylinder 5 to rotate, so that the stirring parts 6 rotate along the circumference of the pile foundation cavity bottom, the sludge at the bottom of the pile foundation cavity is stirred and concentrated from the outside to the inside and introduced into the ring cylinder 5, then the stirring parts 6 further separate and process the sludge according to the different particle sizes of the sludge, an extraction part 8 is jointly arranged between the guide extraction cylinder 3 and the mounting disc 4, the extraction part 8 is used for extracting and collecting the large particle sludge after separation, a circulating pipeline part 9 is jointly arranged between the mounting column 1 and the mounting disc 4, the circulating pipeline part 9 is used for introducing mud into the pile foundation, and the small particle sludge after separation is taken out of the pile foundation by mud circulation, so as to clean the sludge of different particle sizes respectively.

[0027] The installation column 1 is installed on the mechanical arm of the operation vehicle for installing the cleaning drill before the cleaning operation, but the mechanical arm does not control the rotation of the installation column 1, and is only used to control the up-down movement of the installation column 1, then the installation column 1 is inserted into the pile foundation by controlling the operation of the mechanical arm, when the installation column 1 is inserted into position, the outer supporting part 2 is controlled to operate and touch the hole wall at the lower part of the pile foundation, the whole installation column 1 is positioned and the stability is enhanced, and the hole wall near the lower part of the pile foundation can also be protected during the subsequent mud circulation cleaning, then the driving part, the material extraction part 8 and the circulation pipeline part 9 are simultaneously controlled to operate, the driving part drives the stirring and gathering part 6 to operate through the ring cylinder 5, so that the sediment at the bottom of the pile foundation is stirred and gathered to the area of the ring cylinder 5 from outside to inside, the sediment entering the area of the ring cylinder 5 is separated and treated according to the particle size, when the circulation pipeline part 9 operates, the mud prepared outside is extracted into the pile foundation and extracted from the pile foundation again, the small particle sediment is taken out by using the mud flowing along the circulation pipeline part 9 in the pile foundation, and the remaining large particle sediment is extracted into the material extraction part 8, which avoids the disorderly rolling state of the sediment at the bottom of the pile foundation and ensures the effective cleaning and collection of the sediment.

[0028] After the cleaning is completed, the outer supporting part 2 is controlled to reset, then the installation column 1 is removed from the pile foundation by controlling the mechanical arm.

[0029] Please refer to Figure 1 and Figure 2 In the embodiment, the outer supporting part 2 includes an electric sliding ring 21, a jacking rod 22, a connecting rod set 23 and an arc-shaped expansion plate 24, a plurality of connecting rod sets 23 are equidistantly hinged on the circumferential outer wall of the installation column 1, the end of each connecting rod set 23 away from the installation column 1 is hinged with an arc-shaped expansion plate 24, the connecting rod set 23 is composed of two mutually parallel connecting rods, the middle part of the connecting rod at the upper part of each connecting rod set 23 is hinged with a jacking rod 22, the electric sliding ring 21 is slidably connected outside the installation column 1, and the upper end of the jacking rod 22 is hinged outside the electric sliding ring 21.

[0030] During the process that the mechanical arm of the external operation vehicle drives the installation column 1 to be inserted into the pile foundation, the inclined surface at the lower part of the side wall of the scraping sleeve 62 is used to guide the scraping sleeve 62 to enter the pile foundation, so that the scraping sleeve 62 can smoothly enter the pile foundation, and the rolling cylinder is used to protect the side wall of the pile foundation during the subsequent rotation, so as to avoid scratching the side wall of the pile foundation, and when entering the pile foundation with different diameters, the scraping sleeve 62 is pressed to slide outside the scraping plate 61, and the limiting spring is compressed, so that the scraping sleeve 62 can be self-adaptively adjusted according to the pile foundation with different diameters.

[0031] The arc-shaped expansion plate 24 is initially in a state of being gathered together, the electric sliding ring 21 is controlled to slide downward when the arc-shaped expansion plate 24 enters the pile foundation, then the electric sliding ring 21 drives the connecting rod set 23 to rotate downward through the jacking rod 22, the connecting rod set 23 drives the arc-shaped expansion plate 24 to gradually move outward and expand, until the arc-shaped expansion plate 24 is in close contact with the hole wall of the pile foundation, so that the whole installation column 1 is positioned and the stability is enhanced.

[0032] It should be noted that the arc-shaped expansion plate 24 can be fixedly connected with a plurality of semispherical protrusions at equal intervals along the arc direction and the axial direction of the arc-shaped expansion plate 24, so that the semispherical protrusions are embedded into the pile hole wall after the arc-shaped expansion plate 24 is expanded, thereby further enhancing the positioning stability of the expanded arc-shaped expansion plate 24.

[0033] Please refer to Figure 3 and Figure 4 In the embodiment, the stirring part 6 comprises a scraper 61 fixedly connected to the ring cylinder 5 by embedding, and the scraper 61 is arranged obliquely. The scraper 61 is slidingly connected with a scraper sleeve 62 outside the scraper 61. The scraper 61 and the scraper sleeve 62 are jointly fixedly connected with a limiting spring. A height measuring groove 63 is arranged at the lower part of one side of the inner cavity of the ring cylinder 5, and is used for grading and limiting the size of the sediment entering the ring cylinder 5. The lower half of the side of the scraper sleeve 62 away from the scraper 61 is gradually inclined to the axis side of the ring cylinder 5 from top to bottom. A roller is rotatably connected to the vertical section of the side of the scraper sleeve 62 away from the scraper 61 by embedding.

[0034] Please refer to Figure 5 In the embodiment, the driving part comprises a second driving motor fixedly connected to the mounting disc 4 by embedding. An annular groove is arranged on the outer wall of the mounting disc 4. An empty groove is arranged in the inner part of the mounting disc 4 and communicates with the annular groove. A gear ring 10 is fixedly connected to the inner wall of the ring cylinder 5 and located in the annular groove. A gear 11 is fixedly connected to the output shaft end of the second driving motor and located in the empty groove and engaged with the gear ring 10.

[0035] When the outer supporting part 2 is running, the second driving motor is controlled to run. The second driving motor drives the gear 11 to rotate, and then the gear 11 drives the ring cylinder 5 to rotate through the gear ring 10. The ring cylinder 5 drives the scraper 61 and the scraper sleeve 62 to rotate synchronously. Correspondingly, the scraper 61 and the scraper sleeve 62 are scraped from the outside to the inside of the bottom of the pile during the rotation process by using the inclination of the scraper 61 and the scraper sleeve 62. The sediment moves along the path of the scraper sleeve 62 of the scraper 61, enters the ring cylinder 5 through the groove 7, and then moves to the position of the height measuring groove 63. The small particle sediment with a height lower than the height of the opening of the height measuring groove 63 will not be continuously scraped by the scraper 61 to move close to the center of the ring cylinder 5, but will be pushed by the subsequent sediment from the outside to the inside, so that the small particle sediment is uniformly spread in the ring cylinder 5. The large particle sediment with a height higher than the height of the opening of the height measuring groove 63 will be continuously guided to the middle of the ring cylinder 5 under the continuous stirring of the scraper 61, and then continuously transported to the position of the material extraction part 8 for collection and cleaning.

[0036] Please refer to Figure 1 and Figure 2In the embodiment, the circulating pipeline part 9 includes two pump bodies fixedly connected to the mounting column 1 through the support and left-right symmetrical, a pump-out pipe 91 is communicated to the pump body located at the left part, the lower end of the pump-out pipe 91 penetrates and is fixedly connected to the mounting disc 4, a lead-in pipe 92 is communicated to the pump body located at the right part, and the pump-out pipe 91 and the lead-in pipe 92 are both hoses.

[0037] In the process of inserting the mounting column 1 into the pile foundation, the upper end of the lead-in pipe 92 is placed into the container externally provided with the slurry, the right part of the pump body is controlled to operate while the outer support part 2 is operated, the slurry is pumped into the pile foundation through the lead-in pipe 92 by the right part of the pump body, the left part of the pump body is started to operate, the slurry in the pile foundation is sucked into the lower end of the pump-out pipe 91 by the left part of the pump body, and then the slurry is pumped out from the upper end of the pump-out pipe 91 from bottom to top, so that the slurry flows in the pile foundation, the slurry in the flow is taken away by the small particle sediments separated by the stirring and gathering part 6, and finally is discharged from the upper end of the pump-out pipe 91, the sediments are continuously and orderly gathered from outside to inside by the stirring and gathering part 6, so that the flowing slurry can effectively take away the sediments, the cleaning of the small particle sediments is more thorough, the inner wall of the lower part of the pile foundation is top-sticked by the arc-shaped expansion plate 24, and the inner wall of the lower part of the pile foundation is protected, so that the risk that the inner wall of the pile foundation is impacted by the flowing slurry to cause wall collapse is avoided.

[0038] Please refer to Figure 3 、 Figure 4 and Figure 5 In the embodiment, the material extraction part 8 includes a first driving motor 81 fixedly connected in the inner cavity of the guide extraction cylinder 3, a spiral stirring piece 82 is fixedly connected to the outer wall of the output rod of the first driving motor 81, a plurality of feeding grooves 83 are equidistantly arranged on the outer wall of the inner cavity section of the ring cylinder 5, a temporarily storing cylinder 84 with an open lower part is slidably connected to the outer part of the guide extraction cylinder 3 in a spline fitting mode, a discharging groove 85 is symmetrically arranged on the inner wall of the inner cavity section of the guide extraction cylinder 3 located in the inner cavity section of the temporarily storing cylinder 84, a sediment groove is arranged on the upper end face of the mounting disc 4 and corresponds to the side contour shape of the lower end of the temporarily storing cylinder 84, the temporarily storing cylinder 84 is slidably embedded in the sediment groove in the initial state, the temporarily storing cylinder 84 is limited and supported by the sediment groove at the lower end, so as to enhance the connection stability between the temporarily storing cylinder 84 and the mounting disc 4, thereby avoiding the condition that the sediments enter the connection gap between the temporarily storing cylinder 84 and the mounting disc 4 in the process of entering the temporarily storing cylinder 84, and the temporarily storing cylinder 84 is expanded at the connection with the mounting disc 4.

[0039] After the outer support part 2 is positioned, the control material extraction part 8 starts to operate, the first driving motor 81 drives the spiral paddle 82 to rotate, and in the process that the scraper 61 rotates with the ring cylinder 5, the scraper 61 continuously pushes and gathers the separated large-particle sediment from the outside of the ring cylinder 5 to the center direction, so that the large-particle sediment gradually moves to the middle part of the ring cylinder 5, and after the large-particle sediment moves to the position of the feeding groove 83, the large-particle sediment enters the guide extraction cylinder 3 through the feeding groove 83, and the spiral paddle 82 spirally conveys the large-particle sediment in the guide extraction cylinder 3 in the process of rotation, so that the sediment moves upward along the guide extraction cylinder 3, and when the sediment moves upward to the position of the discharging groove 85, the large-particle sediment overflows along the discharging groove 85 and enters the temporary storage cylinder 84, so that the large-particle sediment is collected, and through the continuous pushing and gathering of the sediment from the outside to the inside by the scraper 61, it can be ensured that the large-particle sediment fully enters the guide extraction cylinder 3, and residual sediment in the bottom of the pile foundation cavity is avoided.

[0040] After the bottom cleaning operation is completed and the installation column 1 is pulled out from the pile foundation, the temporary storage cylinder 84 can be manually or by external tools pushed to move upward along the guide extraction cylinder 3, so that the temporary storage cylinder 84 is separated from the installation disc 4, the collected large-particle sediment falls outward through the open area formed between the temporary storage cylinder 84 and the installation disc 4, so that the discharging is completed.

[0041] In work, first, the installation column 1 is connected with the mechanical arm of the external operation vehicle, the installation column 1 is inserted into the pile foundation along the axial direction of the pile foundation through the control of the mechanical arm, then the outer support part 2 is started, so that the outer support part 2 is in contact with the inner wall of the pile foundation, the installation column 1 is radially positioned, so that the stability of the installation column 1 in the pile foundation is ensured, after the positioning is completed, the driving part, the circulating pipeline part 9 and the material extraction part 8 are started synchronously, the driving part drives the pushing and gathering part 6 to operate, so that the sediment in the bottom of the pile foundation is continuously pushed and gathered from the outside to the inside under the action of the pushing and gathering part 6 and is guided into the ring cylinder 5, at the same time, the sediment in the ring cylinder 5 is classified and separated according to the particle size, the circulating pipeline part 9 drives the mud to form a circulating flow in the pile foundation, the small-particle sediment after the separation is discharged from the pile foundation with the mud, and the material extraction part 8 extracts and collects the large-particle sediment after the separation, so that the different particle size sediments in the pile foundation are cleaned respectively, and the bottom cleaning operation of the pile foundation is completed.

[0042] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying 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 limiting the present application.

[0043] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or a specific number of indicated technical features. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect", "fix" and other terms should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. 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.

[0045] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pile foundation cleaning device, comprising an installation column, characterized in that: The mounting column is equipped with an external support, which is used to contact the inner wall of the pile foundation during the cleaning operation, so as to provide radial positioning and protection for the inner wall of the pile foundation. The lower end of the mounting column is fixedly connected to the mounting plate via a guide tube. The mounting plate is rotatably connected to an annular cylinder. Several adjustable actuating parts are installed equidistantly around the annular cylinder. Several entry slots corresponding to the actuating parts are equidistantly opened on the outer circumference of the annular cylinder. A drive unit is installed between the annular cylinder and the mounting plate. During the cleaning operation, the drive unit drives the ring cylinder to rotate, causing the agglomeration unit to rotate circumferentially along the bottom of the pile foundation cavity, moving the sediment at the bottom of the pile foundation cavity from the outside to the inside and concentrating it into the ring cylinder. Then, the agglomeration unit further classifies and separates the sediment according to the different particle sizes of the sediment particles. A material extraction section is provided between the guide tube and the installation plate. The material extraction section is used to extract and collect the large particles of sediment after separation. A circulation pipeline section is provided between the installation column and the installation plate. The circulation pipeline section is used to introduce mud into the pile foundation. The small particles of sediment after separation are carried out of the pile foundation through the circulation of mud, so as to clean the sediment of different particle sizes separately.

2. The pile foundation cleaning equipment according to claim 1, characterized in that: The agglomeration unit includes a scraper fixedly connected to the ring cylinder by an interlocking method, and the scraper is inclined. A scraper sleeve is slidably connected to the outside of the scraper. A limit spring is fixedly connected between the scraper and the scraper sleeve. A height measuring groove is opened on the lower part of the scraper on one side of the inner cavity of the ring cylinder. The height measuring groove is used to classify and limit the size of the sediment entering the ring cylinder.

3. The pile foundation cleaning equipment according to claim 1, characterized in that: The circulation pipeline section includes two pump bodies that are symmetrically fixed to the mounting column by a bracket. The pump body on the left is connected to an extraction pipe, the lower end of which is fixedly connected to the mounting plate. The pump body on the right is connected to an inlet pipe.

4. The pile foundation cleaning equipment according to claim 1, characterized in that: The external support includes an electric slip ring, a push rod, a connecting rod assembly, and an arc-shaped expansion plate. Several connecting rod assemblies are equidistantly hinged to the outer circumference of the mounting column. Each connecting rod assembly has an arc-shaped expansion plate hinged to its end away from the mounting column. Each connecting rod assembly consists of two parallel connecting rods. In each connecting rod assembly, a push rod is hinged to the middle of the upper connecting rod. An electric slip ring is slidably connected to the outside of the mounting column, and the upper end of the push rod is hinged to the outside of the electric slip ring.

5. The pile foundation cleaning equipment according to claim 1, characterized in that: The material extraction section includes a No. 1 drive motor fixedly connected to the inner cavity of the guide extraction cylinder. A spiral blade is fixedly connected to the outer wall of the output rod of the No. 1 drive motor. The guide extraction cylinder has several feed slots equidistantly opened on the outer wall of the inner cavity section of the ring cylinder.

6. The pile foundation cleaning equipment according to claim 1, characterized in that: The drive unit includes a second drive motor that is fixedly connected to the mounting plate. The outer wall of the mounting plate has an annular groove, and the inside of the mounting plate has a hollow groove that communicates with the annular groove. A gear ring located in the annular groove is fixedly connected to the inner wall of the ring cylinder. A gear located in the hollow groove and meshing with the gear ring is fixedly connected to the end of the output shaft of the second drive motor.

7. The pile foundation cleaning equipment according to claim 2, characterized in that: The lower half of the scraper sleeve on the side away from the scraper gradually tilts towards the axis of the ring cylinder from top to bottom, and the vertical section of the scraper sleeve on the side away from the scraper is rotatably connected to a roller by an embedded method.

8. A pile foundation cleaning device according to claim 5, characterized in that: The guide tube is slidably connected to a storage tube with a lower opening via a spline connection. The inner wall of the guide tube located in the inner cavity of the storage tube has symmetrically opened discharge grooves, and the upper end face of the mounting plate has a sink groove corresponding to the contour shape of the lower end side of the storage tube.

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