A cleaning device for cleaning pile foundation pit using rotary drilling machine

Abstract

The present invention relates to a cleaning device for cleaning a pile foundation pit by utilizing a rotary drilling machine, and relates to the technical field of pile foundation cleaning equipment, which comprises a base end plate and a cross-jointed piece installed on the upper side of the base end plate, a square assembly rod is vertically arranged downwardly on the lower side of the base end plate, and a scraping device is arranged on the square assembly rod; the scraping device comprises a main assembly seat and a secondary assembly seat respectively installed on both sides of the square assembly rod, and an extended square rod is slidingly arranged on the main assembly seat and the secondary assembly seat, and a forward scraper and a same-direction scraper are respectively arranged at the opposite ends of the two extended square rods, a regulating mechanism is arranged on the square assembly rod, and a collecting unit is also arranged on the bottom side of the square assembly rod and the main assembly seat; the present invention has the function of being able to cooperate with a rotary drilling machine to clean loose soil layers, debris, etc. existing in foundation pits of different depths, and can be adjusted accordingly according to the different diameters of the foundation pits, so as to be suitable for the cleaning effect of foundation pits of different sizes.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation cleaning equipment, and in particular to a cleaning device for cleaning a pile foundation pit using a rotary drilling rig. Background Art

[0002] A rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. Pile foundation pits are a common structural form in construction projects, mainly used to support large buildings or other heavy structures. Pile foundations refer to piles driven into the ground to transfer the building load to deeper soil or rock, while foundation pits are earthwork areas excavated for construction, usually used to bury foundations or underground structures.

[0003] In order to ensure the safety, quality and smooth construction of the project, pile foundation pit cleaning is an important construction link, which can remove debris, gravel and other obstacles in the soil, ensure that the pile foundation can be accurately driven into the designed depth and position during construction, and improve the construction quality. Cleaning the foundation pit can reduce the presence of uneven materials in the foundation pit, reduce the risk of uneven settlement and deformation of the foundation, ensure the stability of the pile foundation, remove potential safety hazards, such as loose soil layers, debris, etc., and reduce the risk of accidents during construction.

[0004] For example, in the existing Chinese patent with the publication number CN118375138B, a pile foundation bottom cleaning device for pile foundation construction is disclosed, which includes a support plate, a rotating tube is rotatably installed on the upper surface of the support plate, two connecting tubes connected to it are fixedly installed at the bottom end of the rotating tube, a collecting cover is fixedly installed at the bottom end of the two connecting tubes, and the connecting tubes are connected to the inside of the collecting cover, the bottom of the collecting cover is an open structure, a feed port is opened through the outside of the collecting cover, and a scraping mechanism is provided on the outer surface of the collecting cover. Through the above-mentioned prior art, the transmission shaft is driven by a driving motor to rotate, so that the transmission shaft drives the sprocket to rotate, and the chain belt sleeved on the outer surface of the sprocket can move accordingly, so that the scraper plate installed on the outer surface of the chain belt can scrape the soil at the bottom of the foundation pit into the inside of the collecting cover, and the dust pump sucks the soil inside the collecting cover out of the foundation pit through the dust suction pipe, the rotating tube and the connecting pipe, so as to clean the soil at the bottom of the foundation pit.

[0005] However, the above prior art has the following technical defects:

[0006] When the above-mentioned prior art is used, the large slag core in the pile foundation pit is first taken out, and then the above-mentioned device is placed above the pile foundation pit, and the legs are erected on the ground around the foundation pit. By controlling the telescopic length of the electric telescopic rod, the collecting cover is lowered to the bottom of the foundation pit, and the driving motor drives the transmission shaft to rotate, so that the transmission shaft drives the sprocket to rotate, and the chain belt set on the outer surface of the sprocket can move accordingly, so that the scraper plate installed on the outer surface of the chain belt can scrape the soil at the bottom of the foundation pit into the inside of the collecting cover, and the dust pump sucks the soil inside the collecting cover out of the foundation pit through the dust suction pipe, the rotating pipe and the connecting pipe, so as to clean the soil at the bottom of the foundation pit. The depth of the collecting cover descending into the foundation pit mainly depends on the length of the electric telescopic rod that can be extended, so that the depth that can be descended is limited, and some deep foundation pits cannot be cleaned.

[0007] Secondly, the above device scrapes the soil at the bottom of the foundation pit into the inside of the collecting cover through the scraper plate installed on the outer surface of the chain belt to achieve the cleaning effect; but it only cleans the bottom of the foundation pit and cannot clean the loose soil layer and debris on the side wall of the foundation pit. In addition, the above device cannot be adjusted according to the different diameters of the pile foundation to meet the cleaning work of foundation pits of different sizes.

[0008] Based on this, on the basis of the existing pile foundation cleaning equipment for pile foundation construction, in order to overcome the above-mentioned technical defects, there is still room for improvement. Summary of the invention

[0009] In order to cooperate with a rotary drilling rig to clean up loose soil layers, debris, etc. inside foundation pits of different depths, and to be able to adjust accordingly according to the different diameters of the foundation pits to be suitable for cleaning foundation pits of different sizes, the present application provides a cleaning device for cleaning pile foundation pits using a rotary drilling rig.

[0010] The present application provides a cleaning device for cleaning a pile foundation pit using a rotary drilling machine, which adopts the following technical solution:

[0011] A cleaning device for cleaning a pile foundation pit using a rotary drilling machine, comprising a base end plate and a cross-jointed piece installed on the upper side of the base end plate, a square assembly rod is vertically arranged downward on the lower side of the base end plate, and a scraping device is arranged on the square assembly rod;

[0012] The scraping device includes a main assembly seat and a sub-assembly seat respectively installed on both sides of the square assembly rod, and the main assembly seat and the sub-assembly seat are both provided with extended square rods for limited sliding. The two extended square rods are respectively provided with sliding grooves adapted to the main assembly seat and the sub-assembly seat, and the opposite ends of the two extended square rods are respectively provided with a forward scraper and a same-direction scraper, and the square assembly rod is provided with a regulating mechanism for driving the two extended square rods to perform synchronous adjustment, and the bottom sides of the square assembly rod and the main assembly seat are also provided with a collection unit for storing soil and debris.

[0013] Preferably, the regulating mechanism includes two driving racks respectively installed on two extended square rods, an adjusting round rod is rotatably provided on the square assembly rod located between the two driving racks, a circular through hole for installing the adjusting round rod is penetrated on the square assembly rod, two driving gears respectively meshing with the two driving racks are sleeved on the adjusting round rod, a limiting bolt is threadedly rotatably installed on the main assembly seat, and an internal threaded hole adapted to the limiting bolt is threadedly provided on the main assembly seat.

[0014] Preferably, the collection unit includes a configuration base installed on the bottom side of the main assembly seat, and a bottom shovel plate is obliquely arranged on the configuration base. Two connecting inner rods are slidably inserted at one end of the bottom shovel plate away from the main assembly seat, and a circular hole for inserting the connecting inner rod is opened on the bottom shovel plate.

[0015] Preferably, outer end blocks are sleeved on the two connected inner rods outside the bottom shovel plate, an upper shovel plate is obliquely and slidably provided on the bottom shovel plate, and one end of the upper shovel plate is connected to the two outer end blocks, and a linkage side rod connected to the end of the upper shovel plate is installed at the bottom of the forward scraper.

[0016] Preferably, the collection unit also includes a storage assembly installed on the square assembly rod, the storage assembly includes a storage box installed on the square assembly rod, a delivery pipe is vertically inserted at the bottom of the storage box, and a circular pipe hole for the delivery pipe to be inserted and installed is opened on the storage box.

[0017] Preferably, a concentrating vessel is provided at the bottom of the conveying pipe, a semi-ring enclosure and a side enclosure are installed on the concentrating vessel, an L-shaped baffle connected to the concentrating vessel is provided on one side of the bottom shovel plate, a guide enclosure is provided on one side of the upper shovel plate, and the guide enclosure is located on the inner side of the L-shaped baffle.

[0018] Preferably, the inner bottom surfaces of the side baffle plates, the L-shaped baffle plates and the guide baffle plates are all arranged to be inclined toward the concentrating container.

[0019] Preferably, a delivery port is provided on the delivery pipe in the central container, and an output port is provided on the delivery pipe in the storage box.

[0020] Preferably, a transmitter is provided in the conveying pipe, and the transmitter includes a screw rod rotatably installed in the conveying pipe, and the upper end of the screw rod penetrates the storage box and extends upward, and a rotating shaft hole for the screw rod to penetrate is opened on the upper side of the storage box, and a driving motor is arranged on the lower side of the base end plate through a motor seat, and the rotating end of the driving motor is connected to the protruding end of the screw rod.

[0021] Preferably, the outer sides of the forward scraper and the same-direction scraper are both provided with protrusions.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] By rotating the adjusting round rod to drive the two driving gears to rotate, under the meshing action with the two driving racks, the two extended square rods can be synchronously driven to slide and expand to both sides. According to the diameter width of the foundation pit to be cleaned, the forward scraper and the same direction scraper are adjusted to the appropriate position, and then the limit bolts are rotated to lock the positions of the two extended square rods, so that the corresponding adaptation and adjustment can be achieved according to the different diameters of the foundation pits.

[0024] Driven by the rotary drilling rig, the equipment as a whole descends into the foundation pit and rotates. During the downward movement, the forward scraper and the same-direction scraper can clean the loose soil and debris on the side walls of the foundation pit and make them fall to the bottom of the foundation pit. After the equipment moves down to the bottom of the foundation pit, the bottom shovel plate and the upper shovel plate can shovel up the soil and debris and enter the concentrated container under the guidance of the L-shaped baffle and the guide enclosure.

[0025] Start the drive motor to drive the spiral rod to rotate, and the soil and debris in the centralized container enter the conveying pipe through the transmission port, move upward under the transmission of the spiral rod, and are discharged into the storage box through the output port for temporary storage, thereby achieving the purpose of cleaning the loose soil layer and debris inside the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of some components of the scraping device of the present invention.

[0028] Figure 3 It is a schematic diagram of the control mechanism of the present invention.

[0029] Figure 4 The collecting unit of the present invention is schematically shown Figure 1 .

[0030] Figure 5 It is an exploded view of some components of the collection unit of the present invention.

[0031] Figure 6 The collecting unit of the present invention is schematically shown Figure 2 (Viewed from back to front).

[0032] Figure 7 The storage component of the present invention is schematically shown Figure 1 .

[0033] Figure 8 The storage component of the present invention is Figure 2 .

[0034] Fig. 9 The storage component of the present invention explodes Figure 1.

[0035] Fig.10 The storage component of the present invention explodes Figure 2 (Viewed from back to front).

[0036] Fig.11 It is a cross-sectional view of the storage box of the present invention.

[0037] Fig.12 It is a cross-sectional view of the transmitter of the present invention.

[0038] Fig.13 It is a schematic diagram of the opening and closing member of the present invention.

[0039] Fig.14 It is an exploded view of some components of the opening and closing piece of the present invention.

[0040] Explanation of the reference numerals: 1. base end plate; 11. cross-joint piece; 12. square assembly rod; 2. scraping device; 21. main assembly seat; 22. auxiliary assembly seat; 23. extended square rod; 231. sliding groove; 24. forward scraper; 25. same direction scraper; 3. regulating mechanism; 4. collecting unit; 31. driving rack; 32. adjusting round rod; 121. round through hole; 33. driving gear; 34. limiting bolt; 211. internal threaded hole; 41. configuration base; 42. bottom shovel plate; 43. connecting inner rod; 421. inserting round hole; 44. outer end block; 45. upper Layer shovel plate; 46, linked side rod; 5, storage component; 51, storage box; 52, conveying pipe; 511, circular tube hole; 53, central container; 54, semi-ring enclosure; 55, side enclosure baffle; 56, L-shaped baffle; 57, guide enclosure; 521, transmission port; 522, output port; 6, transmitter; 61, screw rod; 512, shaft hole; 62, motor seat; 63, drive motor; 241, raised part; 7, opening and closing part; 71, assembly frame; 513, discharge port; 72, arc-shaped closing plate; 73, metal rod seat; 74, locking bar; 730, rectangular groove. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 14 This application is described in further detail.

[0042] The embodiment of the present application discloses a cleaning device for cleaning a pile foundation pit using a rotary drilling rig. The cleaning device can cooperate with the rotary drilling rig to clean loose soil layers, debris, etc. inside foundation pits of different depths, and can be adjusted accordingly according to the different diameters of the foundation pits to be suitable for cleaning foundation pits of different sizes.

[0043] Embodiment 1:

[0044] Reference Figure 1 and Figure 2As shown, the present application provides a cleaning device for cleaning a pile foundation pit using a rotary drilling machine, comprising a base end plate 1 and a cross-jointed piece 11 installed on the upper side of the base end plate 1, a square assembly rod 12 is vertically arranged downward on the lower side of the base end plate 1, and a scraping device 2 is arranged on the square assembly rod 12; it should be noted that the cross-jointed piece 11 and the square assembly rod 12 are fixedly connected to the base end plate 1, and the cross-jointed piece 11 is convenient for connecting and installing the equipment with the rotary drilling machine. The rotary drilling machine, also known as a rotary drilling rig, is a construction machine suitable for hole-forming operations in building foundation engineering. It is mainly suitable for construction of soil layers such as sand, clay, and silty soil. This type of drilling rig generally adopts a hydraulic crawler telescopic chassis, a self-lifting and foldable drilling mast, a telescopic drill rod, automatic verticality detection and adjustment, a digital display of hole depth, etc., and is suitable for dry (short spiral) or wet (rotary bucket) and rock formation (core drill) hole-making operations with different drilling tools. It can also be equipped with a long spiral drill, an underground continuous wall grab, a vibrating pile hammer, etc. to achieve multiple functions. When it is necessary to clean the pile foundation pit, first remove the drill bit on the rotary excavator, and use a cross-joint 11 to install the equipment on the rotary excavator drill rod through bolts and other connection methods. The staff controls the rotary excavator to send the equipment into the foundation pit, and the scraping device 2 can clean the loose soil and debris on the inner wall and bottom of the foundation pit.

[0045] The scraping device 2 includes a main assembly seat 21 and a sub-assembly seat 22 respectively installed on both sides of the square assembly rod 12, and the main assembly seat 21 and the sub-assembly seat 22 are both provided with an extended square rod 23 for limited sliding. The two extended square rods 23 are respectively provided with sliding grooves 231 adapted to the main assembly seat 21 and the sub-assembly seat 22, and the opposite ends of the two extended square rods 23 are respectively provided with a forward scraper 24 and a same-direction scraper 25, and the forward scraper 24 and the same-direction scraper 25 are respectively fixedly installed on the ends of the two extended square rods 23; the square assembly rod 12 is provided with a regulating mechanism 3 for driving the two extended square rods 23 for synchronous adjustment, and the bottom side of the square assembly rod 12 and the main assembly seat 21 is also provided with a collecting unit 4 for storing soil and debris.

[0046] When actually cleaning the foundation pit, the extension distance of the two extension square rods 23 is first adjusted by the control mechanism 3 according to the size of the foundation pit diameter, so that when the equipment enters the foundation pit, the forward scraper 24 and the same direction scraper 25 can contact the side wall of the foundation pit. The rotary excavator controls the equipment to enter the foundation pit, and drives the equipment to rotate in the foundation pit in the process of driving the equipment downward. Under the action of the collection unit 4, the loose soil and debris on the side wall and the bottom of the foundation pit can be cleaned and collected, and finally taken out of the foundation pit. The outer surfaces of the forward scraper 24 and the same direction scraper 25 are both provided with a protrusion 241. When the equipment is driven by the rotary excavator to rotate in the foundation pit, the protrusion 241 on the forward scraper 24 and the same direction scraper 25 can better scrape the loose soil and debris, so that they fall to the bottom of the foundation pit, which is convenient for the equipment to move down to the bottom of the foundation pit and collect and clean it uniformly.

[0047] Reference Figure 2 and Figure 3 As shown, in order to adjust the spacing between the forward scraper 24 and the same direction scraper 25 according to the different diameters of the foundation pit, and to be suitable for cleaning foundation pits of different sizes, the regulating mechanism 3 includes two driving racks 31 respectively mounted on the two extended square rods 23, and the two driving racks 31 are fixedly connected to the two extended square rods 23; an adjusting round rod 32 is rotatably provided on the square assembly rod 12 between the two driving racks 31, and a round through hole 121 is provided on the square assembly rod 12 for the installation of the adjusting round rod 32, and two driving gears 33 are sleeved on the adjusting round rod 32, respectively meshing with the two driving racks 31. It should be noted that the two driving gears 33 are fixedly sleeved on the adjusting round rod 32 and are respectively located on both sides of the square assembly rod 12. A limit bolt 34 is threadedly rotatably installed on the main assembly seat 21, and an internal threaded hole 211 adapted to the limit bolt 34 is threadedly provided on the main assembly seat 21.

[0048] According to the actual need to clean the diameter of the foundation pit, the adjusting round rod 32 is rotated counterclockwise, and under the meshing action of the two driving gears 33 and the two driving racks 31, the two extended square rods 23 can be synchronously driven to expand and extend outward, and the spacing between the forward scraper 24 and the same-direction scraper 25 gradually increases until it matches the inner diameter of the foundation pit, that is, the outer side surfaces of the forward scraper 24 and the same-direction scraper 25 can contact the inner wall of the foundation pit, and then the limiting bolt 34 is rotated so that one end of the limiting bolt 34 is tightly pressed against the extended square rod 23 on the main assembly seat 21, thereby achieving the effect of firmly locking the two extended square rods 23.

[0049] To ensure that the forward scraper 24 and the same direction scraper 25 are always in contact with the inner wall of the foundation pit while the rotary drilling rig controls the device to move downward and drives the device to rotate in the foundation pit, the raised portion 241 is used to scrape away loose soil and debris on the inner wall of the foundation pit and make them fall to the bottom of the foundation pit.

[0050] Reference Figure 4 and Figure 5 As shown, since it is necessary to clean up the loose soil and debris at the bottom of the foundation pit to ensure the stability of the pile foundation and remove potential safety hazards, the collection unit 4 includes a configuration base 41 installed on the bottom side of the main assembly seat 21, and the configuration base 41 is fixedly connected to the main assembly seat 21; a bottom shovel plate 42 is tiltedly arranged on the configuration base 41, and the bottom shovel plate 42 is fixedly installed on the configuration base 41. Two connecting inner rods 43 are slidably inserted at one end of the bottom shovel plate 42 away from the main assembly seat 21, and a circular insertion hole 421 for the connection inner rod 43 to be installed is opened on the bottom shovel plate 42. When the base end plate 1 and the square assembly rod 12 are controlled by the rotary drilling machine to rotate, the bottom shovel plate 42 rotates synchronously. When the bottom shovel plate 42 moves down to the bottom of the foundation pit, the loose soil and debris at the bottom of the foundation pit can be shoveled.

[0051] Reference Figures 4 to 6 As shown, two connecting inner rods 43 outside the bottom shovel plate 42 are sleeved with outer end blocks 44. It should be noted that the two outer end blocks 44 are respectively fixedly sleeved on the two connecting inner rods 43; an upper shovel plate 45 is tilted and slidably provided on the bottom shovel plate 42, and one end of the upper shovel plate 45 is connected to the two outer end blocks 44, and a linkage side rod 46 connected to the end of the upper shovel plate 45 is installed at the bottom of the forward scraper 24. When the adjustment round rod 32 is rotated to adjust the spacing between the forward scraper 24 and the same direction scraper 25, under the action of the linkage side rod 46, the upper shovel plate 45 will follow the forward scraper 24 to expand outward synchronously, but it is restricted by the two connecting inner rods 43, and the upper shovel plate 45 will always be on the bottom shovel plate 42, so that the shoveling range of the bottom shovel plate 42 and the upper shovel plate 45 can be adjusted synchronously when the adjustment round rod 32 is rotated. Ensure that the bottom shovel plate 42 and the upper shovel plate 45 can cover the bottom of the foundation pit during the rotation process.

[0052] Embodiment 2:

[0053] Reference Figure 7 As shown, on the basis of the first embodiment, in order to cooperate with the bottom shovel plate 42 and the upper shovel plate 45 to centrally store the shoveled soil and debris for easy cleaning out of the foundation pit, the collection unit 4 also includes a storage assembly 5 installed on the square assembly rod 12, and the storage assembly 5 includes a storage box 51 installed on the square assembly rod 12, a delivery pipe 52 is vertically inserted at the bottom of the storage box 51, and a round pipe hole 511 for the delivery pipe 52 to be inserted and installed is opened on the storage box 51. The square assembly rod 12 runs through the entire storage box 51, and the storage box 51 is fixedly connected to the square assembly rod 12, and the delivery pipe 52 is also fixedly connected to the storage box 51, a part of the delivery pipe 52 is in the storage box 51, and a part of the delivery pipe 52 is located outside the storage box 51.

[0054] Reference Figures 8 to 10 As shown, a centralizing container 53 is provided at the bottom of the conveying pipe 52, and a semi-ring enclosure 54 and a side enclosure baffle 55 are installed on the centralizing container 53. An L-shaped baffle 56 connected to the centralizing container 53 is provided on one side of the bottom shovel plate 42, and a guide enclosure 57 is provided on one side of the upper shovel plate 45, and the guide enclosure 57 is located inside the L-shaped baffle 56. The guide enclosure 57 can move synchronously with the upper shovel plate 45. When the upper shovel plate 45 expands and extends outward, it will drive the guide enclosure 57 to extend outward from the L-shaped baffle 56. The inner bottom surfaces of the side enclosure baffle 55, the L-shaped baffle 56 and the guide enclosure 57 are all inclined toward the centralizing container 53. The equipment moves down to the bottom of the foundation pit, and the bottom shovel plate 42 and the upper shovel plate 45 contact the bottom surface of the foundation pit. When the equipment is driven by the rotary drilling rig to rotate as a whole, the bottom shovel plate 42 and the upper shovel plate 45 can shovel up the loose soil and debris at the bottom of the foundation pit and guide them to the central container 53.

[0055] Reference Fig.11 As shown, considering that the concentrating container 53 and the storage box 51 need to be connected through the delivery pipe 52, a delivery port 521 is provided on the delivery pipe 52 in the concentrating container 53, and an output port 522 is provided on the delivery pipe 52 in the storage box 51. The soil and debris guided to the concentrating container 53 can enter the delivery pipe 52 through the delivery port 521. It should be noted that the soil and debris are small objects that can enter the delivery port 521.

[0056] Reference Fig.11 and Fig.12 As shown, in order to transport the soil and debris in the centralized container 53 to the storage box 51 for centralized storage through the conveying pipe 52, a conveyor 6 is provided in the conveying pipe 52, and the conveyor 6 includes a screw rod 61 rotatably installed in the conveying pipe 52, and the upper end of the screw rod 61 penetrates the storage box 51 and extends upward, and a rotating shaft hole 512 for the screw rod 61 to penetrate is opened on the upper side of the storage box 51, and a driving motor 63 is provided on the lower side of the base end plate 1 through the motor seat 62, and the rotating end of the driving motor 63 is connected to the protruding end of the screw rod 61. After the equipment is moved down to the bottom of the foundation pit as a whole, the driving motor 63 is started to operate. Driven by the driving motor 63, the spiral rod 61 can rotate in the conveying pipe 52. The soil and debris entering the conveying pipe 52 through the conveying port 521 are transported upward by the rotating spiral rod 61 and enter the storage box 51. After reaching a certain height, they are discharged through the output port 522 and fall into the storage box 51 for centralized storage, so as to facilitate the unified removal of the cleaned soil and debris from the foundation pit.

[0057] Embodiment three:

[0058] Reference Fig.13 and Fig.14As shown, on the basis of Example 1 and Example 2, in order to facilitate the discharge of loose soil, debris, etc. temporarily stored in the storage box 51, an opening and closing member 7 is further provided on the outer wall of the storage box 51, and the opening and closing member 7 includes an assembly outer frame 71 installed on the outer wall of the storage box 51, and a discharge port 513 is provided on the outer wall of the storage box 51 at the assembly outer frame 71, and an arc-shaped closing plate 72 is rotatably provided on the assembly outer frame 71, and a metal rod seat 73 is provided on the arc-shaped closing plate 72, and a locking bar 74 is rotatably installed on the assembly outer frame 71, and a rectangular groove 730 adapted to the locking bar 74 is provided on the metal rod seat 73. It should be noted that the locking bar 74 is made of a magnetic magnet material. When the locking bar 74 is stuck in the rectangular groove 730, suction is generated between the locking bar 74 made of the magnet material and the metal rod seat 73, and the two are tightly locked to prevent the arc-shaped closing plate 72 from opening.

[0059] In the initial state, the locking bar 74 is stuck in the rectangular groove 730, and the arc-shaped closing plate 72 is in a closed and locked state. After the equipment enters the foundation pit, completes the cleaning and collects the soil and debris into the storage box 51 and takes it out of the foundation pit, the locking bar 74 is rotated to separate the locking bar 74 from the metal rod seat 73, and then the arc-shaped closing plate 72 is rotated to open the discharge port 513 to discharge the soil and other debris.

[0060] The implementation principle of this embodiment is:

[0061] (1) Adaptation and adjustment: According to the size of the pit to be cleaned, the adjusting rod 32 is rotated counterclockwise to synchronously drive the two extended square rods 23 to extend outward until the forward scraper 24 and the same direction scraper 25 are adapted to the inner diameter of the pit, and then the limit bolt 34 is rotated to lock the two extended square rods 23. When the adjusting rod 32 is rotated, the position of the upper shovel plate 45 is synchronously adjusted to adjust the range that the bottom shovel plate 42 and the upper shovel plate 45 can shovel.

[0062] (2) Side wall cleaning: Under the control of the rotary drilling rig, the equipment moves downward and rotates in the foundation pit. The raised parts 241 on the outer sides of the forward scraper 24 and the same direction scraper 25 can scrape away the loose soil and debris on the inner side wall of the foundation pit and drop them to the bottom of the foundation pit.

[0063] (3) Bottom cleaning: After the equipment is driven down to the bottom of the foundation pit, the bottom shovel plate 42 and the upper shovel plate 45 will contact the bottom surface of the foundation pit. When rotating, the bottom shovel plate 42 and the upper shovel plate 45 can shovel up the loose soil, debris, etc. at the bottom of the foundation pit and guide them to the central container 53.

[0064] (4) Transfer and storage: When the driving motor 63 is in operation, the screw rod 61 rotates, and the soil and debris are transported upward to the storage box 51 through the conveying port 521, and finally discharged through the output port 522 and fall into the storage box 51; after the cleaning is completed, the soil and debris are collected in the storage box 51 and taken out of the foundation pit, the locking bar 74 and the arc-shaped closing plate 72 are rotated to open the discharge port 513, and the soil and other debris can be discharged.

[0065] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning device for cleaning a pile foundation pit using a rotary drilling machine, comprising a base end plate (1) and a cross-jointed member (11) mounted on the upper side of the base end plate (1), wherein a square assembly rod (12) is vertically arranged downward on the lower side of the base end plate (1), characterized in that: The square assembly rod (12) is provided with a scraping device (2); The scraping device (2) comprises a main assembly seat (21) and a secondary assembly seat (22) respectively mounted on both sides of a square assembly rod (12); an extended square rod (23) is provided on the main assembly seat (21) and the secondary assembly seat (22) for limited sliding; the two extended square rods (23) are respectively provided with sliding grooves (231) adapted to the main assembly seat (21) and the secondary assembly seat (22); opposite ends of the two extended square rods (23) are respectively provided with a forward scraper (24) and a same-direction scraper (25); the square assembly rod (12) is provided with a regulating mechanism (3) for driving the two extended square rods (23) to perform synchronous regulation; and a collecting unit (4) for storing soil and debris is also provided on the bottom sides of the square assembly rod (12) and the main assembly seat (21); The regulating mechanism (3) comprises two driving racks (31) respectively mounted on two extended square rods (23); an adjusting round rod (32) is rotatably provided on a square assembly rod (12) between the two driving racks (31); a round through hole (121) is provided on the square assembly rod (12) for mounting the adjusting round rod (32); two driving gears (33) are sleeved on the adjusting round rod (32) and are respectively meshed with the two driving racks (31); a limiting bolt (34) is rotatably installed on the main assembly seat (21); and an internal threaded hole (211) adapted to the limiting bolt (34) is threadedly provided on the main assembly seat (21); The collecting unit (4) comprises a configuration base (41) mounted on the bottom side of the main assembly seat (21), a bottom shovel plate (42) is obliquely arranged on the configuration base (41), two connecting inner rods (43) are slidably inserted at one end of the bottom shovel plate (42) away from the main assembly seat (21), and a circular insertion hole (421) for installing the connecting inner rods (43) is opened on the bottom shovel plate (42); An outer end block (44) is sleeved on two connecting inner rods (43) outside the bottom shovel plate (42), an upper shovel plate (45) is obliquely and slidably provided on the bottom shovel plate (42), and one end of the upper shovel plate (45) is connected to the two outer end blocks (44), and a linkage side rod (46) connected to the end of the upper shovel plate (45) is installed at the bottom of the forward scraper (24).

2. The cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 1, characterized in that: The collecting unit (4) further comprises a storage assembly (5) mounted on the square assembly rod (12), the storage assembly (5) comprising a storage box (51) mounted on the square assembly rod (12), a delivery pipe (52) being vertically inserted at the bottom of the storage box (51), and a circular pipe hole (511) for inserting and installing the delivery pipe (52) is provided on the storage box (51).

3. A cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 2, characterized in that: A concentrating vessel (53) is provided at the bottom of the conveying pipe (52), and a semi-ring enclosure (54) and a side enclosure plate (55) are installed on the concentrating vessel (53); an L-shaped baffle (56) connected to the concentrating vessel (53) is provided on one side of the bottom shovel plate (42); a guide enclosure (57) is provided on one side of the upper shovel plate (45), and the guide enclosure (57) is located on the inner side of the L-shaped baffle (56).

4. A cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 3, characterized in that: The inner bottom surfaces of the side baffle plate (55), the L-shaped baffle plate (56) and the guide baffle plate (57) are all arranged to be inclined toward the concentrating container (53).

5. The cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 4, characterized in that: A delivery port (521) is provided on the delivery pipe (52) in the concentration container (53), and an output port (522) is provided on the delivery pipe (52) in the storage box (51).

6. The cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 2, characterized in that: The conveying pipe (52) is provided with a conveyor (6), and the conveyor (6) comprises a screw rod (61) rotatably installed in the conveying pipe (52), and the upper end of the screw rod (61) penetrates the storage box (51) and protrudes upward, and the upper side of the storage box (51) is provided with a rotating shaft hole (512) for the screw rod (61) to penetrate, and the lower side of the base end plate (1) is provided with a driving motor (63) through the motor seat (62), and the rotating end of the driving motor (63) is connected to the protruding end of the screw rod (61).

7. The cleaning device for cleaning a pile foundation pit using a rotary drilling machine according to claim 1, characterized in that: The outer sides of the forward scraper (24) and the in-direction scraper (25) are both provided with a protrusion (241).

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