Pile hole slag removal device for cast-in-situ bored pile foundation pit support

Abstract

The utility model discloses a pile hole slag removal device for a cast-in-situ bored pile foundation pit support, which comprises a bearing frame, a slag removal device and a slag removal device, the two groups of winch bases are symmetrically arranged at the two ends of the bearing frame, and a traction steel cable is wound on each group of winch bases; the two groups of pulley yokes are symmetrically arranged on the bearing frame and are positioned between the two groups of winch bases; steel cable grooves are formed in the two sides of each slag suction pipe respectively, the inner diameter of each steel cable groove is matched with the outer diameter of the corresponding traction steel cable, the bottom ends of the traction steel cables on the two winch bases penetrate through the pulley yokes on the same side and then are connected into one steel cable groove of the slag suction pipe, and the slag suction pipe is driven to be vertically placed in a foundation pit. The support is parallel to the inner wall of the foundation pit. According to the utility model, the function of conveniently and stably lowering the pipe is realized, and the problem that the device does not have the function of conveniently and stably lowering the pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, and more specifically to a pile hole slag cleaning device for bored cast-in-place pile foundation pit support. Background Art

[0002] Bored cast-in-place piles refer to piles that are made by forming pile holes in the foundation soil at the construction site through mechanical drilling, steel pipe squeezing or manual excavation, and placing steel cages inside and pouring concrete. Pile foundation pits for branch piles will be chiseled out around the pile foundation pit to cast supporting piles to support the main piles. Whether it is the main pile foundation pit or the supporting pile foundation pit, the sediment in the pile hole needs to be cleared out to facilitate the subsequent cage pouring.

[0003] The pile hole slag cleaning devices for bored cast-in-place pile foundation pit support currently available on the market are mostly similar in structure. They are based on a steel support frame, and a slag suction pipe is lowered along the empty space in the middle of the support frame. The sediment in the foundation pit is sucked out by a sand and gravel pump, and the slag-containing mud is deposited in the mud pool, the sand and gravel settle, and the mud flows back. There are some functional deficiencies in actual use and there is room for improvement. For example, the slag suction pipe at the bottom of the current pile hole cleaning device is relatively long and fixed in length. It is easy to knock against the inner wall of the foundation pit during the hoisting and lowering process, causing the inner wall soil layer to peel off and increase the bottom sediment. It does not have the function of stabilizing the lowering pipe.

[0004] Now, a novel pile hole slag cleaning device for bored cast-in-place pile foundation pit support is proposed to solve the above problems. Utility Model Content

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0006] Another object of the utility model is to provide a pile hole slag cleaning device for bored cast-in-place pile foundation pit support.

[0007] In order to achieve these purposes and other advantages of the utility model, the following technical solutions are provided:

[0008] A pile hole slag cleaning device for bored cast-in-place pile foundation pit support, comprising:

[0009] A bearing frame is erected at the pit mouth of the supporting pile foundation pit;

[0010] Two groups of winch bases, which are symmetrically arranged at two ends of the bearing frame, and each group of the winch bases is wound with a traction steel cable;

[0011] Two groups of pulley frames, the two groups of pulley frames are symmetrically arranged on the bearing frame, and the two groups of pulley frames are located between the two groups of winch bases;

[0012] At least one group of slag suction pipes, each group of slag suction pipes is provided with steel cable grooves on both sides, the inner diameter of the steel cable groove matches the outer diameter of the traction steel cable, wherein the bottom ends of the traction steel cables on the two groups of winch bases pass through the pulley frames on the same side and are connected to a steel cable groove of the slag suction pipes, and the traction steel cables, driven by the driving mechanism, drive the slag suction pipes to be vertically lowered into the foundation pit, and the slag suction pipes are parallel to the inner wall of the foundation pit.

[0013] Preferably, in the pile hole cleaning device for bored cast-in-place pile foundation pit support, each group of pulley frames comprises:

[0014] An upper pulley, which is arranged vertically near the top of the winch base;

[0015] A side pulley is arranged perpendicular to the upper pulley on a side of the pulley frame away from the winch base. The side pulley is located below the upper pulley in the vertical direction. The traction steel cable is in contact with the top ends of the upper pulley and the side pulley.

[0016] Preferably, in the pile hole slag cleaning device for bored pile foundation pit support, a steel cable drum is provided between the front and rear ends of each group of the hoist bases, and the traction steel cable is wound around the corresponding steel cable drum;

[0017] The driving mechanism is a servo motor, and the front end of each group of winch bases is equipped with the servo motor, which drives the cable drum to roll and lower the traction cable.

[0018] Preferably, in the pile hole cleaning device for bored cast-in-place pile foundation pit support, the top end of each group of the slag suction pipes is provided with a top thread, and the bottom end is provided with a bottom thread, and the top end of each group of the slag suction pipes is also sleeved with an oil internal thread connecting ring, the internal thread connecting ring is sleeved on the top end of the slag suction pipe through the top thread, and the internal thread connecting ring matches the bottom thread of other groups of slag suction pipes, and one group of the slag suction pipes is screwed with the bottom thread of another group of the slag suction pipes through its internal thread connecting ring to connect the two groups of the slag suction pipes.

[0019] Preferably, the pile hole slag cleaning device for bored cast-in-place pile foundation pit support further comprises:

[0020] The sand and gravel pump is arranged at the central position of the supporting frame and is located between the two groups of pulley frames. The bottom of the sand and gravel pump is connected with the highest group of the slag suction pipes through its slurry inlet, and a slurry outlet is arranged on one side of the sand and gravel pump.

[0021] Preferably, the pile hole slag cleaning device for bored cast-in-place pile foundation pit support further comprises:

[0022] A plurality of steel sockets, which are symmetrically distributed on both sides of the bearing frame and are all located outside the two groups of winch bases, and a positioning pile slot is provided at the middle position of each of the steel sockets;

[0023] A plurality of steel positioning piles are provided, each of which is slidably inserted into a positioning pile slot along a vertical direction, wherein a hammer plate is connected to the top of each steel positioning pile, and a traction hole is provided at the bottom of the hammer plate.

[0024] Preferably, in the pile hole slag cleaning device for bored cast-in-place pile foundation pit support, the two sides of the slag suction pipe are respectively fixedly connected with side guide frames, both sides of the side guide frames are provided with wire feed grooves, and the ends of the wire feed grooves form the steel cable grooves on the side guide frames, the bottom end of the traction steel cable is fixedly connected with an anti-slip nut, the outer diameter of the anti-slip nut is larger than the inner diameter of the steel cable groove, and the bottom end of the traction steel cable is installed in the steel cable groove.

[0025] Preferably, in the pile hole slag cleaning device for bored cast-in-place pile foundation pit support, an alignment indicator is sprayed on the bottom of each group of slag suction pipes, and the bottom end of the alignment indicator is at the same height as the top end of the bottom thread.

[0026] The utility model at least has the following beneficial effects:

[0027] The pile hole slag cleaning device of the bored cast-in-place pile foundation pit support of the utility model not only realizes the function of stabilizing the lower pipe and the function of facilitating the connection and extension of the pipeline, but also realizes the function of preventing the displacement of the fixed base:

[0028] (1) The utility model is provided with a winch base, a steel cable drum, a servo motor with a speed reducer, a traction steel cable, a pulley frame, an upper pulley, a side pulley, a side guide frame, a wire feed slot, a steel cable slot and an anti-slip nut. When in use, the steel bearing frame is erected at the pit mouth of the support pile foundation pit, the traction steel cable is passed through the steel cable slots inside the side guide frames on both sides of the slag suction pipe, and the anti-slip nut is fixed at the bottom of the traction steel cable, the slag suction pipe is slowly lowered along the foundation pit, the servo motor with a speed reducer at the front end of the winch base drives the steel cable drum to continuously roll, and the traction steel cable is slowly lowered, the upper pulley and the side pulleys on the pulley frame can guide the traction steel cable to keep it vertical and parallel to the inner wall of the foundation pit, and the wire feed slot is convenient for the traction steel cable to continue to be inserted when the subsequent pipe is connected, thereby realizing the function of facilitating the stable lowering of the pipe;

[0029] (2) The utility model is provided with a bottom thread, a positioning indicator mark, a top thread and an internal thread connecting ring. When in use, as the bottom slag suction pipe is slowly lowered, a new set of slag suction pipes is installed on the bottom slag suction pipe, and the internal thread connecting ring at the top of the lower slag suction pipe is slowly screwed up along the top thread so that it fits with the bottom thread of the bottom of the upper slag suction pipe. The positioning indicator mark can indicate the upward screwing position of the internal thread connecting ring, and the upper and lower sets of slag suction pipes can be quickly connected as one. As the bottom of the bottom slag suction pipe approaches the bottom of the foundation pit, the sand and gravel pump is docked with the top slag suction pipe, thereby realizing the function of facilitating docking and extending the pipeline;

[0030] (3) The utility model is provided with a steel socket, a positioning pile slot, a steel positioning pile, a traction hole and a hammer plate. When in use, when the steel bearing frame is installed, as the steel bearing frame is placed stably, the steel positioning piles are inserted into the positioning pile slots on the steel sockets on both sides of the steel bearing frame, and the hammer plates are hammered to insert them into the ground. The four groups of steel positioning piles can limit the position of the steel bearing frame to prevent it from displacement. The traction hole is convenient for docking with the crane when it is pulled out later, thereby realizing the function of preventing the fixed base from displacement.

[0031] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view structural schematic diagram of a pile hole slag cleaning device for bored cast-in-place pile foundation pit support in one of the schemes of the utility model.

[0033] Figure 2 This is a schematic diagram of an enlarged top view of the slag suction pipe in one of the schemes of the utility model.

[0034] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of the local section at point A in the middle.

[0035] Figure 4 This is a schematic diagram of an enlarged partial cross-section of a slag suction pipe in one of the solutions of the utility model.

[0036] Figure 5 This is a schematic diagram of the top view of the steel support frame in one of the solutions of the utility model.

[0037] Explanation of the reference numerals: 1-carrying frame; 2-winch base; 3-cable drum; 4-servo motor; 5-traction cable; 6-pulley frame; 7-upper pulley; 8-side pulley; 9-side guide frame; 10-wire inlet groove; 11-cable groove; 12-anti-slip nut; 13-slag suction pipe; 14-bottom thread; 15-alignment indicator; 16-top thread; 17-internal thread connecting ring; 18-steel socket; 19-positioning pile slot; 20-steel positioning pile; 21-traction hole; 22-hammer plate; 23-sand and gravel pump; 24-slurry outlet; 25-slurry inlet. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0039] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0040] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description. It does not indicate or imply 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 utility model.

[0041] like Figure 1 , Figure 2 , Figure 3 and, Figure 4 and Figure 5 As shown, the utility model provides a pile hole slag cleaning device for bored cast-in-place pile foundation pit support, comprising:

[0042] The bearing frame 1 is erected at the pit mouth of the supporting pile foundation pit; preferably, a steel bearing frame 1 can be used.

[0043] Two groups of hoist bases 2, which are symmetrically arranged at two ends of the support frame 1, and a traction steel cable 5 is wound around each group of the hoist bases 2;

[0044] Two groups of pulley frames 6, the two groups of pulley frames 6 are symmetrically arranged on the bearing frame 1, and the two groups of pulley frames 6 are located between the two groups of winch bases 2;

[0045] At least one group of slag suction pipes 13 is provided with steel cable grooves 11 on both sides of each group of slag suction pipes 13, and the inner diameter of the steel cable groove 11 matches the outer diameter of the traction steel cable 5, wherein the bottom ends of the traction steel cables 5 on the two groups of winch bases 2 pass through the pulley frame 6 on the same side and are connected to a steel cable groove 11 of the slag suction pipes 13, and the traction steel cables 5 are driven by the driving mechanism to drive the slag suction pipes 13 to be vertically lowered into the foundation pit, and the slag suction pipes 13 are parallel to the inner wall of the foundation pit.

[0046] The utility model is provided with a winch base 2, a pulley frame 6, a steel cable groove 11, etc. When in use, the bearing frame 1 is set at the pit mouth of the support pile foundation pit, the traction steel cable 5 is passed through the steel cable grooves 11 on both sides of the slag suction pipe 13, and the slag suction pipe 13 is slowly lowered along the foundation pit. The pulley frame 6 can guide the traction steel cable 5 to keep it vertical and parallel to the inner wall of the foundation pit, thereby realizing the function of facilitating the stable lowering of the pipe.

[0047] In the above scheme, preferably, each group of pulley frames 6 includes:

[0048] An upper pulley 7, which is arranged in a vertical direction near the top of the winch base 2;

[0049] The side pulley 8 is perpendicular to the upper pulley 7 and is arranged on the side of the pulley frame 6 away from the winch base 2. The side pulley 8 is located below the upper pulley 7 in the vertical direction, and the traction cable 5 is in contact with the top ends of the upper pulley 7 and the side pulley 8. The traction cable 5 is slowly lowered, and the upper pulley 7 and the side pulley 8 on the pulley frame 6 can guide the traction cable 5 to keep it vertical and parallel to the inner wall of the foundation pit.

[0050] In one solution of the present invention, preferably, a cable drum 3 is provided between the front and rear ends of each group of the hoist base 2, and the traction cable 5 is wound around the corresponding cable drum 3;

[0051] The driving mechanism is a servo motor 4 , and the front end of each group of the hoist base 2 is equipped with the servo motor 4 . The servo motor 4 drives the cable drum 3 to roll and lower the traction cable 5 .

[0052] In one of the schemes of the utility model, preferably, a top thread 16 is provided on the outside of the top end of each group of the slag suction pipes 13, and a bottom thread 14 is provided on the outside of the bottom end, and an internal thread connecting ring 17 is also sleeved on the outside of the top end of each group of the slag suction pipes 13, and the internal thread connecting ring 17 is sleeved on the top end of the slag suction pipes 13 through the top thread 16, and the internal thread connecting ring 17 matches the bottom thread 14 of other groups of slag suction pipes 13, and one group of the slag suction pipes 13 is screwed with the bottom thread 14 of another group of the slag suction pipes 13 through its internal thread connecting ring 17 to connect the two groups of the slag suction pipes 13.

[0053] In one solution of the present invention, preferably, it also includes:

[0054] The gravel pump 23 is arranged at the central position of the supporting frame 1 and between the two groups of pulley frames 6. The bottom of the gravel pump 23 is connected to the highest group of the slag suction pipes 13 through its slurry inlet 25. A slurry outlet 24 is provided on one side of the gravel pump 23.

[0055] In one solution of the present invention, preferably, it also includes:

[0056] A plurality of steel sockets 18, which are symmetrically distributed on both sides of the carrier frame 1 and are all located outside the two groups of winch bases 2, and a positioning pile slot 19 is provided at the middle position of each of the steel sockets 18;

[0057] A plurality of steel positioning piles 20, each of which is slidably inserted into one of the positioning pile slots 19 in the vertical direction, wherein the top of each of the steel positioning piles 20 is connected to a hammer plate 22, and a traction hole 21 is provided at the bottom of the hammer plate 22. When in use, when installing the steel bearing frame 1, as the steel bearing frame 1 is placed stably, the steel positioning piles 20 are inserted into the positioning pile slots 19 on the steel sockets 18 on both sides of the steel bearing frame 1, and the steel positioning piles 20 are inserted into the ground by hammering the hammer plate 22. The four groups of steel positioning piles 20 can limit the position of the steel bearing frame 1 to prevent it from displacement, and the traction hole 21 is convenient for docking with the crane when it is pulled out later, realizing the function of preventing the displacement of the fixed base.

[0058] In one solution of the utility model, as a preferred embodiment, the two sides of the slag suction pipe 13 are respectively fixedly connected with side guide frames 9, and both sides of the side guide frames 9 are provided with wire inlet grooves 10, and the ends of the wire inlet grooves 10 form the steel cable grooves 11 on the side guide frames 9, and the bottom end of the traction steel cable 5 is fixedly connected with an anti-slip nut 12, the outer diameter of the anti-slip nut 12 is larger than the inner diameter of the steel cable groove 11, and the bottom end of the traction steel cable 5 is installed in the steel cable groove 11. The wire inlet groove 10 facilitates the continued insertion of the traction steel cable 5 when the subsequent pipe is connected.

[0059] In one solution of the utility model, as a preferred embodiment, a positioning indicator 15 is sprayed on the bottom of each set of slag suction pipes 13, and the bottom end of the positioning indicator 15 is at the same height as the top end of the bottom thread 14. The positioning indicator 15 can indicate the upward rotation position of the internal thread connection ring 17, and the upper and lower sets of slag suction pipes 13 can be quickly connected as one.

[0060] In order to enable those skilled in the art to better understand the technical solution of the utility model, the following embodiments are provided for illustration:

[0061] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a pile hole slag cleaning device for bored cast-in-place pile foundation pit support comprises:

[0062] A bearing frame 1 is set up at the pit mouth of the supporting pile foundation pit;

[0063] Two groups of hoist bases 2 are symmetrically arranged at both ends of the support frame 1, and a traction steel cable 5 is wound around each group of hoist bases 2; a steel cable drum 3 is arranged between the front and rear ends of each group of hoist bases 2, and the traction steel cable 5 is wound around the corresponding steel cable drum 3; the driving mechanism is a servo motor 4, and the servo motor 4 is installed at the front end of each group of hoist bases 2, and the servo motor 4 drives the steel cable drum 3 to roll and lower the traction steel cable 5. The hoist bases 2 are symmetrically distributed about the vertical center line of the steel support frame 1.

[0064] Two groups of pulley frames 6, the two groups of pulley frames 6 are symmetrically arranged on the carrier frame 1, and the two groups of pulley frames 6 are located between the two groups of winch bases 2; each group of pulley frames 6 includes:

[0065] An upper pulley 7, which is vertically arranged near the top of the winch base 2;

[0066] The side pulley 8 is arranged perpendicular to the upper pulley 7 on the side of the pulley frame 6 away from the winch base 2. The side pulley 8 is located below the upper pulley 7 in the vertical direction, and the traction cable 5 is in contact with the top ends of the upper pulley 7 and the side pulley 8.

[0067] At least one group of slag suction pipes 13 is provided with steel cable grooves 11 on both sides of each group of slag suction pipes 13, and the inner diameter of the steel cable groove 11 matches the outer diameter of the traction steel cable 5, wherein the bottom ends of the traction steel cables 5 on the two groups of winch bases 2 pass through the pulley frame 6 on the same side and are connected to a steel cable groove 11 of the slag suction pipes 13, and the traction steel cables 5 are driven by the driving mechanism to drive the slag suction pipes 13 to be vertically lowered into the foundation pit, and the slag suction pipes 13 are parallel to the inner wall of the foundation pit.

[0068] Each group of the slag suction pipes 13 is provided with a top thread 16 on the outside of the top end, and a bottom thread 14 on the outside of the bottom end, and each group of the slag suction pipes 13 is also sleeved with an internal thread connection ring 17 on the outside of the top end, and the internal thread connection ring 17 is sleeved on the top end of the slag suction pipe 13 through the top thread 16, and the internal thread connection ring 17 matches the bottom thread 14 of the other group of slag suction pipes 13, wherein one group of the slag suction pipes 13 is screwed with the bottom thread 14 of another group of the slag suction pipes 13 through its internal thread connection ring 17 to connect the two groups of the slag suction pipes 13. The bottom of each group of the slag suction pipes 13 is sprayed with an alignment indicator 15, and the bottom end of the alignment indicator 15 is at the same height as the top end of the bottom thread 14.

[0069] The gravel pump 23 is arranged at the central position of the supporting frame 1 and between the two groups of pulley frames 6. The bottom of the gravel pump 23 is connected to the highest group of the slag suction pipes 13 through its slurry inlet 25. A slurry outlet 24 is provided on one side of the gravel pump 23.

[0070] A plurality of steel sockets 18, which are symmetrically distributed on both sides of the carrier frame 1 and are all located outside the two groups of winch bases 2, and a positioning pile slot 19 is provided at the middle position of each of the steel sockets 18;

[0071] A plurality of steel positioning piles 20, each of which is slidably inserted into one of the positioning pile slots 19 in the vertical direction, wherein the top of each of the steel positioning piles 20 is connected to a hammer plate 22, and a traction hole 21 is provided at the bottom of the hammer plate 22. The bottom of the hammer plate 22 is provided with a traction hole 21, and the vertical center lines of the steel positioning piles 20 and the hammer plate 22 coincide with each other.

[0072] The two sides of the slag suction pipe 13 are respectively fixedly connected with side guide frames 9, and the two sides of the side guide frames 9 are provided with wire inlet grooves 10, and the ends of the wire inlet grooves 10 form the steel cable grooves 11 on the side guide frames 9, and the bottom end of the traction steel cable 5 is fixedly connected with an anti-slip nut 12, the outer diameter of the anti-slip nut 12 is larger than the inner diameter of the steel cable groove 11, and the bottom end of the traction steel cable 5 is installed in the steel cable groove 11.

[0073] Example 1: Please refer to Figure 1-5 A pile hole slag cleaning device for bored cast-in-place pile foundation pit support, comprising a steel bearing frame 1, a gravel pump 23 is arranged at the middle position above the steel bearing frame 1, a slurry outlet 24 is arranged on one side of the gravel pump 23, a slurry inlet 25 is arranged at the bottom of the gravel pump 23, a plurality of groups of slag suction pipes 13 are arranged vertically below the gravel pump 23, and a lower pipe mechanism for stabilizing the lower pipe is arranged at the top of the steel bearing frame 1;

[0074] See also Figure 1-5 A pile hole cleaning device for bored cast-in-place pile foundation pit support also includes a tube lowering mechanism that is convenient for stabilization. The tube lowering mechanism that is convenient for stabilization includes two sets of winch bases 2, which are respectively fixedly connected to the two sides of the top of the steel bearing frame 1. A cable drum 3 is movably connected between the front and rear ends inside the winch base 2. A traction cable 5 is wound around the outside of the cable drum 3. An anti-slip nut 12 is fixedly connected to the bottom end of the traction cable 5. Side guide frames 9 are respectively fixedly connected to the two sides of the slag suction pipe 13. A wire feed groove 10 is provided at one end of the side guide frame 9, and a cable groove 11 is provided inside the side guide frame 9.

[0075] A servo motor 4 with a speed reducer is installed at the front end of the winch base 2. The winch base 2 is symmetrically distributed about the vertical center line of the steel bearing frame 1. Pulley frames 6 are fixedly connected to both sides of the steel bearing frame 1. An upper pulley 7 is installed at the top of the pulley frame 6. A side pulley 8 is installed on one side of the pulley frame 6. The bottom end of the traction steel cable 5 fits with the top of the upper pulley 7 and the side pulley 8. The outer diameter of the traction steel cable 5 is consistent with the inner diameter of the steel cable groove 11. The outer diameter of the anti-drop nut 12 is larger than the inner diameter of the steel cable groove 11, which can stabilize the lower pipe and reduce the probability of bumping against the inner wall of the foundation pit.

[0076] Specifically, Figure 1 , Figure 2 ,and Figure 3 As shown, the traction steel cable 5 is passed through the steel cable groove 11 inside the side guide frame 9 on both sides of the slag suction pipe 13, and the anti-dropping nut 12 is fixed at the bottom of the traction steel cable 5, and the slag suction pipe 13 is slowly lowered along the foundation pit, and the servo motor 4 with reducer at the front end of the winch base 2 drives the steel cable drum 3 to continuously roll, and the traction steel cable 5 is slowly lowered, and the upper pulley 7 and the side pulley 8 on the pulley frame 6 can guide the traction steel cable 5 to keep it vertical and parallel to the inner wall of the foundation pit, and the line inlet groove 10 is convenient for the subsequent connection to continue to insert the traction steel cable 5.

[0077] Embodiment 2: A bottom thread 14 is provided at the bottom end of the outside of the slag suction pipe 13, an internal thread connection ring 17 is sleeved at the top end of the slag suction pipe 13, and alignment indicators 15 are sprayed on the bottoms of the front and rear ends of the slag suction pipe 13, respectively. The bottom end of the alignment indicator 15 is at the same height as the top end of the bottom thread 14, and a top thread 16 is provided at the top end of the outside of the slag suction pipe 13. The internal thread of the internal thread connection ring 17 is consistent with the external thread of the bottom thread 14 and the top thread 16, so that the pipes can be docked conveniently and the length can be adjusted flexibly.

[0078] Specifically, Figure 2 and Figure 4 As shown, a new set of slag suction pipes 13 is installed on the bottom slag suction pipe 13, and the internal thread connecting ring 17 at the top of the lower slag suction pipe 13 is slowly screwed up along the top thread 16 to make it fit with the bottom thread 14 at the bottom of the upper slag suction pipe 13. The alignment indicator 15 can indicate the upward screwing position of the internal thread connecting ring 17, and the upper and lower sets of slag suction pipes 13 can be quickly connected as one. As the bottom of the bottom slag suction pipe 13 approaches the bottom of the foundation pit, the sand and gravel pump 23 is connected to the top slag suction pipe 13.

[0079] Embodiment 3: Steel sockets 18 are fixedly connected to the inside of both sides of the steel carrier frame 1, and a positioning pile slot 19 is provided at the middle position of the steel socket 18. A steel positioning pile 20 is vertically inserted into the positioning pile slot 19. The outer diameter of the steel positioning pile 20 is consistent with the inner diameter of the positioning pile slot 19. The steel positioning pile 20 can slide up and down along the inside of the positioning pile slot 19. A hammer plate 22 is welded on the top of the steel positioning pile 20, and a traction hole 21 is provided at the bottom of the hammer plate 22. The vertical center lines of the steel positioning pile 20 and the hammer plate 22 coincide with each other, so that the installation can be stable to prevent the displacement of the equipment.

[0080] Specifically, Figure 1 and Figure 5 As shown, the steel positioning piles 20 are inserted into the positioning pile slots 19 on the steel sockets 18 on both sides of the steel supporting frame 1, and are inserted into the ground by hammering the hammering plate 22. The four groups of steel positioning piles 20 can limit the position of the steel supporting frame 1 to prevent it from displacement, and the traction holes 21 are convenient for docking with the crane when it is pulled out later.

[0081] Working principle: When the utility model is in use, first, the steel bearing frame 1 is erected at the pit mouth of the support pile foundation pit, the traction steel cable 5 is passed through the steel cable groove 11 inside the side guide frame 9 on both sides of the slag suction pipe 13, and the anti-dropping nut 12 is fixed at the bottom of the traction steel cable 5, and the slag suction pipe 13 is slowly lowered along the foundation pit, and the servo motor 4 with reducer at the front end of the winch base 2 drives the steel cable drum 3 to roll continuously, and the traction steel cable 5 is slowly lowered, and the upper pulley 7 and side pulley 8 on the pulley frame 6 can guide the traction steel cable 5 to keep it vertical and parallel to the inner wall of the foundation pit, and the line inlet groove 10 is convenient for the subsequent connection to continue to insert the traction steel cable 5. As the bottom slag suction pipe 13 is slowly lowered, a new set of slag suction pipes 13 is added to the bottom slag suction pipe 13, and the internal thread connection ring 17 at the top of the lower slag suction pipe 13 is slowly screwed up along the top thread 16 to fit with the bottom thread 14 at the bottom of the upper slag suction pipe 13. The alignment indicator 15 can indicate the upward screwing position of the internal thread connection ring 17, and the upper and lower sets of slag suction pipes 13 can be quickly connected as one. As the bottom of the bottom slag suction pipe 13 approaches the bottom of the foundation pit, the sand and gravel pump 23 is docked with the top slag suction pipe 13. When installing the steel bearing frame 1, as the steel bearing frame 1 is placed stably, the steel positioning piles 20 are inserted into the positioning pile slots 19 on the steel sockets 18 on both sides of the steel bearing frame 1, and the steel positioning piles 20 are inserted into the ground by hammering the hammering plate 22. The four sets of steel positioning piles 20 can limit the position of the steel bearing frame 1 to prevent it from displacement, and the traction hole 21 is convenient for docking with the crane when it is pulled out later.

[0082] The utility model discloses a pile hole slag cleaning device for bored cast-in-place pile foundation pit support, comprising a steel bearing frame, a gravel pump is arranged at the middle position above the steel bearing frame, a slurry outlet is arranged on one side of the gravel pump, and a pipe lowering mechanism is arranged on the top of the steel bearing frame. The pile hole slag cleaning device for bored cast-in-place pile foundation pit support is provided with a winch base, a steel cable drum, a servo motor with a reducer, a traction steel cable, a steel cable groove and an anti-drop nut. When in use, the traction steel cable is passed through the steel cable groove inside the side guide frame on both sides of the slag suction pipe, and the traction steel cable is slowly lowered. The upper pulley and the side pulley on the pulley frame can guide the traction steel cable to keep it vertical and parallel to the inner wall of the foundation pit. The line inlet groove facilitates the continued insertion of the traction steel cable when the subsequent pipe is connected, thereby realizing the function of stabilizing the pipe lowering, and solving the problem that the device does not have the function of stabilizing the pipe lowering.

[0083] The number of devices and processing scales described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.

[0084] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A pile hole slag cleaning device for bored cast-in-place pile foundation pit support, characterized in that: include: A bearing frame is erected at the pit mouth of the supporting pile foundation pit; Two groups of winch bases, which are symmetrically arranged at two ends of the bearing frame, and each group of the winch bases is wound with a traction steel cable; Two groups of pulley frames, the two groups of pulley frames are symmetrically arranged on the bearing frame, and the two groups of pulley frames are located between the two groups of winch bases; At least one group of slag suction pipes, each group of slag suction pipes is provided with steel cable grooves on both sides, the inner diameter of the steel cable groove matches the outer diameter of the traction steel cable, wherein the bottom ends of the traction steel cables on the two groups of winch bases pass through the pulley frames on the same side and are connected to a steel cable groove of the slag suction pipes, and the traction steel cables, driven by the driving mechanism, drive the slag suction pipes to be vertically lowered into the foundation pit, and the slag suction pipes are parallel to the inner wall of the foundation pit.

2. The pile hole slag cleaning device for bored pile foundation pit support according to claim 1, characterized in that: Each group of pulley frames comprises: An upper pulley, which is arranged vertically near the top of the winch base; A side pulley is arranged perpendicular to the upper pulley on a side of the pulley frame away from the winch base. The side pulley is located below the upper pulley in the vertical direction. The traction steel cable is in contact with the top ends of the upper pulley and the side pulley.

3. The pile hole slag cleaning device for bored cast-in-place pile foundation pit support according to claim 1, characterized in that: A cable drum is provided between the front and rear ends of each group of winch bases, and the traction cable is wound around the corresponding cable drum; The driving mechanism is a servo motor, and the front end of each group of winch bases is equipped with the servo motor, which drives the cable drum to roll and lower the traction cable.

4. The pile hole slag cleaning device for bored cast-in-place pile foundation pit support according to claim 1, characterized in that: The top end of each group of the slag suction pipes is provided with a top thread, and the bottom end is provided with a bottom thread, and the top end of each group of the slag suction pipes is also sleeved with an internal thread connecting ring, and the internal thread connecting ring is sleeved on the top end of the slag suction pipe through the top thread, and the internal thread connecting ring matches the bottom thread of other groups of slag suction pipes, and one group of the slag suction pipes is screwed with the bottom thread of another group of the slag suction pipes through its internal thread connecting ring to connect the two groups of the slag suction pipes.

5. The pile hole slag cleaning device for bored cast-in-place pile foundation pit support according to any one of claims 1 to 4, characterized in that: Also includes: The sand and gravel pump is arranged at the central position of the supporting frame and is located between the two groups of pulley frames. The bottom of the sand and gravel pump is connected with the highest group of the slag suction pipes through its slurry inlet, and a slurry outlet is arranged on one side of the sand and gravel pump.

6. The pile hole slag cleaning device for bored cast-in-place pile foundation pit support according to claim 1, characterized in that: Also includes: A plurality of steel sockets, which are symmetrically distributed on both sides of the bearing frame and are all located outside the two groups of winch bases, and a positioning pile slot is provided at the middle position of each of the steel sockets; A plurality of steel positioning piles are provided, each of which is slidably inserted into a positioning pile slot along a vertical direction, wherein a hammer plate is connected to the top of each steel positioning pile, and a traction hole is provided at the bottom of the hammer plate.

7. The pile hole slag cleaning device for bored pile foundation pit support according to claim 1, characterized in that: The two sides of the slag suction pipe are respectively fixedly connected with side guide frames, and the two sides of the side guide frames are provided with wire feed grooves, and the ends of the wire feed grooves form the steel cable grooves on the side guide frames, and the bottom end of the traction steel cable is fixedly connected with an anti-slip nut, the outer diameter of the anti-slip nut is larger than the inner diameter of the steel cable groove, and the bottom end of the traction steel cable is installed in the steel cable groove.

8. The pile hole slag cleaning device for bored pile foundation pit support according to claim 4, characterized in that: The bottom of each group of slag suction pipes is sprayed with an alignment indicator mark, and the bottom end of the alignment indicator mark is at the same height as the top end of the bottom thread.

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