Pile core cleaning device and method

Abstract

The present invention provides a pile core cleaning device and method; wherein the device comprises a power unit (1) and a transmission pipe (2); the power unit (1) is connected to one end of the transmission pipe (2); wherein the power unit (1) provides positive air pressure or negative air pressure to the transmission pipe (2); and the other end of the transmission pipe (2) is inserted into the interior of the pile core; the present invention realizes effective cleaning of the pile core by gradually implementing the methods of "inner pushing" and "inner suction".

Description

Technical Field

[0001] The present invention relates to the technical field of construction auxiliary equipment, and in particular to a pile core cleaning device and method. Background Art

[0002] Currently, pile foundations are commonly used in construction projects, with PHC pipe piles being the most common. According to specifications and blueprint requirements, compression piles typically require a core excavation depth of 1.5 to 2 meters, while pullout piles (compression- and pullout-resistant piles are considered pullout piles) typically require a core excavation depth of 5 meters. Therefore, construction sites require a technology that meets both the required excavation depth and quality requirements.

[0003] However, the excavation requirements for on-site pull-out piles often reach 5 meters or even deeper, and the piles are mostly filled with silty soil. The excavation depth of traditional pipe pile core cleaning machines is difficult to meet the requirements and cannot remove the pile core soil. Summary of the Invention

[0004] In order to at least solve the technical problems existing in the above-mentioned background technology, the present invention provides a pile core cleaning device and method.

[0005] A first aspect of the present invention provides a pile core cleaning device, comprising a power unit (1) and a transmission pipe (2), wherein the power unit (1) is connected to one end of the transmission pipe (2);

[0006] The power unit (1) provides positive air pressure or negative air pressure to the transmission pipe (2); and the other end of the transmission pipe (2) is inserted into the interior of the pile core.

[0007] Optionally, the power unit (1) includes a driving unit, a working chamber (104), an air intake pipe (107), an air blast pipe (108), and a valve unit;

[0008] The air intake pipe (107), the blast pipe (108) and the valve portion are arranged on the shell of the working chamber (104), and the driving portion is arranged in the shell of the working chamber (104); the air intake pipe (107) and the blast pipe (108) are both connected to the transmission pipe (2).

[0009] Optionally, the driving unit comprises a motor (101), a rotating shaft (102), and a fan blade (103); one end of the rotating shaft (102) is fixedly mounted with the fan blade (103), and the other end is fixedly connected to the output shaft of the motor (101).

[0010] Optionally, the valve portion includes a first valve (105) and a second valve (106); wherein the first valve (105) and the second valve (106) are located on both side walls of the outer shell of the working chamber (104), and the fan blade (103) is located in the middle of the first valve (105) and the second valve (106).

[0011] Optionally, the air intake pipe (107) is provided with a third valve, and the air blast pipe (108) is provided with a fourth valve.

[0012] Optionally, the rotating shaft (102) is a retractable rotating shaft.

[0013] Optionally, the conveying tube (2) comprises a positioning portion (3), and the positioning portion (3) is located at one end of the conveying tube (2) inserted into the interior of the pile core;

[0014] The positioning portion (3) is a retractable structure.

[0015] Optionally, the positioning portion (3) comprises a mounting ring (301), a rotating shaft (302), a connecting rod (303), and a friction portion (304); the mounting ring (301) is fixedly connected to the transmission pipe (2); one end of the connecting rod (303) is rotatably connected to the mounting ring (301) via the rotating shaft (302); and the other end of the connecting rod (303) is hinged to the friction portion (304);

[0016] The friction part (304) comprises an iron base and a rubber part, the iron base is hinged to the connecting rod (303), and the rubber part is fixed on the iron base;

[0017] A torsion spring is provided inside the rotating shaft (302), and the torsion spring is used to drive the friction portion (304) away from the conveying pipe (2);

[0018] The conveying pipe (2) is provided with a magnetic attraction portion, and the magnetic attraction portion is arranged corresponding to the iron base.

[0019] Optionally, the pile core cleaning equipment further includes a sewage outlet.

[0020] A second aspect of the present invention further provides a pile core cleaning method, the method being implemented using the aforementioned pile core cleaning device, the pile core cleaning device further comprising a control unit;

[0021] The control unit implements the following method steps:

[0022] S1, controlling the magnetic attraction portion to adsorb the iron base so that the positioning portion (3) is in a contracted state;

[0023] S2, inserting one end of the transmission tube (2) into a predetermined position of the pile core;

[0024] S3, controlling the magnetic attraction portion to no longer attract the iron base, so that the positioning portion (3) is in an expanded state;

[0025] S4, controlling the first valve (105) and the fourth valve to open, and the second valve (106) and the third valve to close;

[0026] S5, controlling the motor (101) to operate, the motor (101) drives the fan blade (103) to rotate via the rotating shaft (102), so that the area between the fan blade (103) and the blast pipe (108) in the working chamber (4) is at positive pressure, thereby achieving blasting, and the silty soil in the pile core above the insertion end of the conveying pipe (2) is pushed out of the pile;

[0027] Before the motor (101) is operated, the air intake pipe (107) is located between the fan blade (103) and the blast pipe (108);

[0028] S6, controlling the motor (101) to not work;

[0029] S7, controlling the magnetic attraction portion to attract the iron base again, so that the positioning portion (3) is in a contracted state;

[0030] S8, controlling the second valve (106) and the third valve to open, and the first valve (105) and the fourth valve to close;

[0031] S9, controlling the rotating shaft (102) to extend to a position between the suction pipe (107) and the blast pipe (108);

[0032] S10, controlling the motor (101) to operate, the motor (101) drives the fan blade (103) to rotate via the rotating shaft (102), so that the area between the fan blade (103) and the suction pipe (107) in the working chamber (4) is at a negative pressure, thereby achieving suction, and the silt in the pile core is sucked out of the pile;

[0033] S11, controlling the motor (101) to stop working and taking out the conveying pipe (2) from the pipe pile.

[0034] The present invention provides a pile core cleaning device, comprising a power unit (1) and a transmission pipe (2), wherein the power unit (1) is connected to one end of the transmission pipe (2); wherein the power unit (1) provides positive or negative air pressure to the transmission pipe (2); and the other end of the transmission pipe (2) is inserted into the interior of the pile core. Thus, the present invention achieves effective cleaning of the pile core by gradually implementing the methods of "inner pushing" and "inner suction". BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a schematic diagram of the overall structure of a pile core cleaning device disclosed in an embodiment of the present invention;

[0037] Figure 2 This is a schematic structural diagram of a transmission pipe inserted into one end of a pipe pile disclosed in an embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of the positioning portion disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0040] It should be noted that, unless otherwise specified, the technical or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," "fixed," "head," and "tail" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0044] See also Figure 1, Figure 1 This is a schematic diagram of the main structure of a pile core cleaning device disclosed in an embodiment of the present invention. Figure 1 As shown, a pile core cleaning device according to an embodiment of the present invention comprises a power unit (1) and a transmission pipe (2), wherein the power unit (1) is connected to one end of the transmission pipe (2);

[0045] The power unit (1) provides positive air pressure or negative air pressure to the transmission pipe (2); and the other end of the transmission pipe (2) is inserted into the interior of the pile core.

[0046] In an embodiment of the present invention, as described in the background art, it is difficult for a conventional pipe pile core cleaning machine to effectively clean the core of a relatively long pipe pile. In view of this, the present invention provides a pile core cleaning device, comprising a power unit (1) and a transmission pipe (2). When in use, one end of the transmission pipe (2) is first inserted into the interior of the pile core, and then the power unit (1) is controlled to provide positive air pressure to the transmission pipe (2), so that the silty soil above the end of the transmission pipe (2) inserted into the interior of the pile core will be pushed out as a whole; after the silty soil is cleaned, the power unit (1) is controlled to provide negative air pressure to the transmission pipe (2), so that the residual mud in the pile core will be sucked out. Thus, the present invention achieves effective cleaning of the pile core by gradually implementing the "inner push" and "inner suction" methods.

[0047] Optionally, the power unit (1) includes a driving unit, a working chamber (104), an air intake pipe (107), an air blast pipe (108), and a valve unit;

[0048] The air intake pipe (107), the blast pipe (108) and the valve portion are arranged on the shell of the working chamber (104), and the driving portion is arranged in the shell of the working chamber (104); the air intake pipe (107) and the blast pipe (108) are both connected to the transmission pipe (2).

[0049] In an embodiment of the present invention, the present invention is particularly provided with a power unit (1) for realizing air suction and air blowing, which includes the above-mentioned components. When working, the valve unit is opened and the driving unit is operated. By changing the matching state of the above-mentioned components, positive air pressure or negative air pressure can be provided to the transmission pipe (2), thereby realizing the aforementioned "inner push" and "inner suction".

[0050] It should be noted that, in addition to the above-described structure, the power unit of the present invention may also be of a conventional form. For example, the power unit may include an independently provided air-inflating unit and an air-inhaling unit, each of which has a drive motor. Of course, other forms are also possible, and the present invention is not limited thereto.

[0051] Optionally, the driving unit comprises a motor (101), a rotating shaft (102), and a fan blade (103); one end of the rotating shaft (102) is fixedly mounted with the fan blade (103), and the other end is fixedly connected to the output shaft of the motor (101).

[0052] In an embodiment of the present invention, the present invention drives the fan blade (103) to rotate by the motor (101), thereby creating positive pressure or negative pressure in the working chamber (104), thereby achieving inflation or suction of the transmission pipe (2).

[0053] It should be noted that the fan blades (103) in the driving unit must be arranged in the working chamber (104), and the motor (101) can be arranged in the working chamber (104) or outside the working chamber (104). In order to be more conducive to the stability of positive or negative air pressure, it is preferred to arrange the motor in the working chamber (104). Accordingly, the rotating shaft (102) is at least partially located in the working chamber (104).

[0054] Optionally, the valve portion includes a first valve (105) and a second valve (106); wherein the first valve (105) and the second valve (106) are located on both side walls of the outer shell of the working chamber (104), and the fan blade (103) is located in the middle of the first valve (105) and the second valve (106).

[0055] In the embodiment of the present invention, air valves are provided at the front and rear of the fan blade (103), and air blowing or air suction is achieved through the cooperation of the air valves and the fan blade (103).

[0056] It should be noted that the number of the first valve (105) and the second valve (106) is not limited, as long as the above positional relationship is satisfied.

[0057] Optionally, the air intake pipe (107) is provided with a third valve, and the air blast pipe (108) is provided with a fourth valve.

[0058] In the embodiment of the present invention, the present invention further provides valves (not shown in the figure) on both the suction pipe (107) and the blast pipe (108) so that they can cooperate with the fan blades (103) to achieve the switching between blowing and suction.

[0059] Optionally, the rotating shaft (102) is a retractable rotating shaft.

[0060] In an embodiment of the present invention, the present invention sets the rotating shaft (102) that drives the fan blades (103) to rotate as a retractable structure, so that it can conveniently cooperate with the switching between inflation and suction.

[0061] Optionally, the conveying tube (2) comprises a positioning portion (3), and the positioning portion (3) is located at one end of the conveying tube (2) inserted into the interior of the pile core;

[0062] The positioning portion (3) is a retractable structure.

[0063] In the embodiment of the present invention, referring to Figure 2 As shown, the present invention also provides a positioning portion (3) at one end of the delivery pipe (2) inserted into the pile core. The positioning portion (3) can make the delivery pipe (2) firmly located inside the pile core, thereby preventing the delivery pipe (2) from being pushed out of the pile when inflating. The positioning portion (3) is a retractable structure. During the inflation phase, the positioning portion (3) is controlled to be in a retracted state when the delivery pipe (2) is inserted into the pile core, which is conducive to reducing the insertion resistance. After the delivery pipe (2) is inserted to a predetermined depth, the positioning portion (3) is controlled to be in an expanded state, so that the insertion end of the delivery pipe (2) is stabilized at the predetermined depth position. During the suction phase, the positioning portion (3) is again controlled to be in a retracted state, so that the insertion end of the delivery pipe (2) is kept at the bottom of the pile under the action of gravity, thereby being more conducive to sucking out all the residual mud.

[0064] It should be noted that the positioning portion (3) is preferably provided with an anti-slip part, the presence of which is more conducive to full contact with the inner wall of the pipe pile to increase friction, thereby stabilizing the insertion end of the conveying pipe (2) at a predetermined depth position.

[0065] Optionally, the positioning portion (3) comprises a mounting ring (301), a rotating shaft (302), a connecting rod (303), and a friction portion (304); the mounting ring (301) is fixedly connected to the transmission pipe (2); one end of the connecting rod (303) is rotatably connected to the mounting ring (301) via the rotating shaft (302); and the other end of the connecting rod (303) is hinged to the friction portion (304);

[0066] The friction part (304) comprises an iron base and a rubber part, the iron base is hinged to the connecting rod (303), and the rubber part is fixed on the iron base;

[0067] A torsion spring is provided inside the rotating shaft (302), and the torsion spring is used to drive the friction portion (304) away from the conveying pipe (2);

[0068] The conveying pipe (2) is provided with a magnetic attraction portion, and the magnetic attraction portion is arranged corresponding to the iron base.

[0069] In the embodiment of the present invention, referring to Figure 3As shown, the present invention is provided with a positioning portion (3) of the above structure. Under the adsorption of the magnetic attraction portion, the friction portion (304) is in a contracted state. When the adsorption force of the magnetic attraction portion disappears or weakens, the friction portion (304) is in an expanded state driven by the torsion spring, and the rubber portion contacts the inner wall of the pipe pile to generate a braking force.

[0070] It should be noted that the magnetic attraction portion on the transmission tube (2) can be an electromagnetic component, that is, when the power is on, it generates suction to attract the iron base, and when the power is off, it no longer attracts the iron base. In addition, in order to further enhance the contact force between the rubber portion and the inner wall of the pipe pile, the iron base can also be provided with magnetism, and accordingly, the magnetic attraction portion can switch the magnetism to the same or opposite magnetic pole as that of the iron base. Thus, in the unfolded state, the contact force between the rubber portion and the inner wall of the pipe pile comes from the elastic force of the torsion spring and the magnetic repulsion of the magnetic attraction portion.

[0071] Optionally, the pile core cleaning equipment further includes a sewage outlet.

[0072] In the embodiment of the present invention, in order to facilitate the discharge of mud, the present invention further provides a sewage outlet. The location and specific structure of the sewage outlet are generally known in the art, and the present invention does not limit this and will not elaborate on it.

[0073] The embodiment of the present invention further provides a pile core cleaning method, the method is implemented by the aforementioned pile core cleaning, and the pile core cleaning device further includes a control unit;

[0074] The control unit implements the following method steps:

[0075] S1, controlling the magnetic attraction portion to adsorb the iron base so that the positioning portion (3) is in a contracted state;

[0076] S2, inserting one end of the transmission tube (2) into a predetermined position of the pile core;

[0077] S3, controlling the magnetic attraction portion to no longer attract the iron base, so that the positioning portion (3) is in an expanded state;

[0078] S4, controlling the first valve (105) and the fourth valve to open, and the second valve (106) and the third valve to close;

[0079] S5, controlling the motor (101) to operate, the motor (101) drives the fan blade (103) to rotate via the rotating shaft (102), so that the area between the fan blade (103) and the blast pipe (108) in the working chamber (4) is at positive pressure, thereby achieving blasting, and the silty soil in the pile core above the insertion end of the conveying pipe (2) is pushed out of the pile;

[0080] Before the motor (101) is operated, the air intake pipe (107) is located between the fan blade (103) and the blast pipe (108);

[0081] S6, controlling the motor (101) to not work;

[0082] S7, controlling the magnetic attraction portion to attract the iron base again, so that the positioning portion (3) is in a contracted state;

[0083] S8, controlling the second valve (106) and the third valve to open, and the first valve (105) and the fourth valve to close;

[0084] S9, controlling the rotating shaft (102) to extend to a position between the suction pipe (107) and the blast pipe (108);

[0085] S10, controlling the motor (101) to operate, the motor (101) drives the fan blade (103) to rotate via the rotating shaft (102), so that the area between the fan blade (103) and the suction pipe (107) in the working chamber (4) is at a negative pressure, thereby achieving suction, and the silt in the pile core is sucked out of the pile;

[0086] S11, controlling the motor (101) to stop working and taking out the conveying pipe (2) from the pipe pile.

[0087] In an embodiment of the present invention, based on the specific structure of the aforementioned pile core cleaning device, the present invention employs a combination of "internal pushing" and "internal suction" to achieve efficient cleaning of silty soil and silt within the pile. Furthermore, the present invention utilizes only one set of drive devices to achieve both blowing and suction functions, making the device simpler and more cost-effective. Furthermore, the rotation direction of the drive motor can remain unchanged, resulting in a lower failure rate for the cleaning device.

[0088] The methods described above can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system comprising at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that can receive data and instructions from a storage system, at least one input system, and at least one output system, and transmit data and instructions to the storage system, the at least one input system, and the at least one output system.

[0089] The program code for implementing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing system so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0090] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0091] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A pile core cleaning device, characterized by: It includes a power unit and a transmission pipe, wherein the power unit is connected to one end of the transmission pipe; The power unit provides positive or negative air pressure to the transmission tube; and the other end of the transmission tube is inserted into the interior of the pile core; The power unit includes a driving unit, a working chamber, an air intake pipe, a blast pipe, and a valve unit; The air intake pipe, the air blast pipe and the valve portion are arranged on the shell of the working chamber, and the driving portion is arranged in the shell of the working chamber; the air intake pipe and the air blast pipe (108) are both connected to the transmission pipe; The driving unit includes a motor, a rotating shaft, and fan blades, wherein the fan blades are fixedly mounted on one end of the rotating shaft, and the other end is fixedly connected to the output shaft of the motor; The valve portion includes a first valve and a second valve; wherein the first valve and the second valve are located on two side walls of the working chamber (104) shell, and the fan blade is located between the first valve and the second valve; The air intake pipe is provided with a third valve, and the air blast pipe is provided with a fourth valve; The rotating shaft is a retractable rotating shaft, and at least a portion of the rotating shaft is located in the working chamber; The pile core cleaning equipment also includes a sewage outlet; The first valve and the fourth valve are opened or closed together, and the second valve and the third valve are closed or opened together, and during inhalation, the rotating shaft is controlled to extend to a position between the inhalation pipe and the blast pipe; During use, the power unit is first controlled to provide positive air pressure to the transmission pipe, and the silt soil above the end of the transmission pipe inserted into the pile core will be pushed out as a whole; after the silt soil is cleaned, the power unit is controlled to provide negative air pressure to the transmission pipe, and the remaining mud in the pile core will be sucked out.

2. A pile core cleaning device according to claim 1, characterized in that: The conveying tube includes a positioning portion, and the positioning portion is located at one end of the conveying tube inserted into the pile core; The positioning portion is a retractable structure.

3. The pile core cleaning device according to claim 2, characterized in that: The positioning portion includes a mounting ring, a rotating shaft, a connecting rod, and a friction portion; the mounting ring is fixedly connected to the transmission pipe, one end of the connecting rod is rotatably connected to the mounting ring via the rotating shaft, and the other end of the connecting rod is hinged to the friction portion; The friction part comprises an iron base and a rubber part, the iron base is hinged to the connecting rod, and the rubber part is fixed on the iron base; A torsion spring is provided inside the rotating shaft, and the torsion spring is used to drive the friction part away from the conveying pipe; The conveying tube is provided with a magnetic attraction portion, and the magnetic attraction portion is arranged corresponding to the iron base.

4. A pile core cleaning method, the method being implemented using the pile core cleaning device according to any one of claims 1 to 3, the pile core cleaning device further comprising a control unit; in, The control unit implements the following method steps: S1, controlling the magnetic attraction portion to adsorb the iron base so that the positioning portion is in a retracted state; S2, inserting one end of the transmission tube into the predetermined position of the pile core; S3, controlling the magnetic attraction portion to stop adsorbing the iron base, so that the positioning portion is in an expanded state; S4, controlling the first valve and the fourth valve to open, and the second valve and the third valve to close; S5, controlling the motor to rotate the fan blades via the rotating shaft, so that the area between the fan blades and the blast tube in the working chamber is at positive pressure, thereby achieving blasting, and the silty soil in the pile core above the insertion end of the conveying tube is pushed out of the pile; Wherein, before the motor works, the suction pipe is located between the fan blades and the blast pipe; S6, controlling the motor to stop working; S7, controlling the magnetic attraction portion to attract the iron base again, so that the positioning portion is in a retracted state; S8, controlling the second valve and the third valve to open, and the first valve and the fourth valve to close; S9, controlling the shaft to extend to a position between the suction pipe and the blast pipe; S10, controlling the motor to operate, the motor drives the fan blades to rotate via the rotating shaft, so that the area between the fan blades and the suction pipe in the working chamber is at a negative pressure, thereby achieving suction, and the silt in the pile core is sucked out of the pile; S11, controlling the motor to stop working and taking out the conveying pipe from the pipe pile.

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