Hole cleaning device for rotary excavating cast-in-situ bored pile

Abstract

The utility model discloses a rotary excavating cast-in-situ bored pile hole cleaning device which mainly comprises a centrifugal pump and two fixing plates, a slurry pumping pipe is arranged on the lower side of the centrifugal pump, the two sides of the centrifugal pump are communicated with the two fixing plates through two drainage pipes, the slurry pumping pipe is fixed through the fixing plates, and a liquid inlet cavity, a liquid outlet cavity and a first filtering layer are arranged in the fixing plates. And the centrifugal pump is communicated with the liquid inlet cavity of the fixing plate through the drainage pipe, so that slurry and sediment sequentially pass through the slurry pumping pipe, the centrifugal pump, the drainage pipe and the fixing plate, the sediment cleaning work is completed, a sedimentation tank and a slurry tank do not need to be dug, the construction efficiency is improved, and the situation that more ground space is occupied is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cleaning equipment, especially relates to a rotary drilling hole filling pile hole cleaning device. BACKGROUND

[0002] After completing the drilling of the filling pile, a large amount of sediment will accumulate in the pile hole, which will affect the quality of the subsequent pile forming, therefore, before the concrete is poured, the pile hole usually needs to be cleaned.

[0003] In the prior art, a Chinese patent with the application number CN201320607982.1 discloses a drilling hole filling pile hole cleaning device, which comprises a drill bit for drilling a pile hole, a drill rig rotary disc for rotating the drill bit, and a centrifugal pump for forming negative pressure and pumping the mud containing drill cuttings away from the pile hole, a hollow drill rod is connected between the drill bit and the centrifugal pump, the drill rig rotary disc is arranged at the upper part of the drill rod, and the centrifugal pump is connected with a mud outlet pipe for discharging the mud containing drill cuttings. The drilling hole filling pile hole cleaning device adopts a centrifugal pump, which generates negative pressure in the inner cavity of the drill rod, so that the mud containing drill cuttings rises from the bottom of the pile hole through the inner cavity of the pile rod and enters a sedimentation tank, and the sedimented mud liquid flows into the pile hole through the overflow port of the mud tank, and the cleaning of the pile hole can be completed after a certain period of time.

[0004] However, there are still some problems that need to be improved:

[0005] 1. The sedimentation tank and the mud tank need to occupy a certain land area, especially in a small or complex environment, which may limit the construction layout.

[0006] 2. The existing hole cleaning device needs to use different sizes of hole cleaning devices for different diameters of pile holes, so that the construction party needs to prepare multiple sizes of hole cleaning devices, which increases the cost.

[0007] Therefore, there is an urgent need for a rotary drilling hole filling pile hole cleaning device that occupies less land and can be applied to a larger number of pile holes with different diameters. UTILITY MODEL CONTENT

[0008] The utility model aims to provide a rotary drilling hole filling pile hole cleaning device, which solves the technical problems of large land occupation of the hole cleaning device and the inability to be applied to pile holes with different diameters.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0010] The utility model provides a kind of rotary drilling bored pile hole cleaning device, including centrifugal pump, lower side is equipped with pump pulp pipe, centrifugal pump both sides are equipped with drainage pipe;And two fixed plates, oppositely set in pump pulp pipe both sides, and the opposite end surface of two fixed plates is detachably connected;Fixed plate is equipped with liquid inlet chamber and liquid outlet chamber, liquid outlet chamber is equipped with first filter layer between liquid outlet chamber, liquid inlet chamber is far from pump pulp pipe, liquid outlet chamber is close to pump pulp pipe, two drainage pipes are communicated with two liquid inlet chambers respectively, and liquid outlet hole is equipped in the lower side of liquid outlet chamber.

[0011] In some embodiments, the liquid outlet chamber includes a sediment chamber and a mud chamber, a second filter layer is provided between the sediment chamber and the mud chamber, the sediment chamber is disposed between the first filter layer and the second filter layer, and the liquid outlet hole is communicated with the mud chamber.

[0012] In some embodiments, the fixed plate has a slag removal opening on the lower side of the side away from the pump pulp pipe, and the slag removal opening is communicated with the liquid inlet chamber.

[0013] In some embodiments, the first filter layer is disposed at the lower end of the slag removal opening, and the upper end of the fixed plate is disposed on the inner wall of the upper side of the fixed plate and away from the slag removal opening.

[0014] In some embodiments, the fixed plate has a slag removal opening on the lower side of the side away from the pump pulp pipe, and the slag removal opening is communicated with the liquid inlet chamber.

[0015] In some embodiments, the two fixed plates are each provided with a main circular arc groove, and the two main circular arc grooves are adapted to the pump pulp pipe.

[0016] In some embodiments, the main circular arc groove is provided with a bolt connection block on both sides, and the two fixed plates are bolted through the four bolt connection blocks.

[0017] In some embodiments, the fixed plate has a slag removal opening on the lower side of the side away from the pump pulp pipe, and the slag removal opening is communicated with the liquid inlet chamber.

[0018] In some embodiments, the outer side wall of the adapter end is provided with a plurality of longitudinal strip blocks, the groove wall of the main circular arc groove is provided with a plurality of longitudinal insertion grooves adapted to the strip blocks, and the outer side wall of the adapter end and the groove wall of the main circular arc groove are inserted through the plurality of strip blocks and the plurality of insertion grooves.

[0019] In some embodiments, the lower side surface of the fixed plate is circumferentially provided with a plurality of sequentially spaced rollers, and a plurality of lifting columns are provided.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] The utility model discloses, through the fixed plate fixed pump pulp pipe, and set up in fixed plate liquid inlet cavity, liquid outlet cavity and first filter layer, and the liquid inlet cavity of centrifugal pump and fixed plate is communicated through the drainage tube, thereby making the mud and sediment pass through pump pulp pipe, centrifugal pump, drainage tube and fixed plate in proper order, thereby finishing the cleaning work of sediment, and then need not dig and set up the sedimentation tank and mud pool, improve construction efficiency, and avoid occupying more ground space. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the technical scheme of the embodiments of the utility model more clear, the following will briefly introduce the drawing needed to be used in the embodiment, and should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0023] Figure 1 It is the partial section schematic view of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0024] Figure 2 It is the front view schematic view of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0025] Figure 3 It is the top view schematic view of the fixed plate of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0026] Figure 4 It is the bottom view schematic view of the fixed plate of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0027] Figure 5 It is the side view schematic view of the fixed plate of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0028] Figure 6 It is the top view schematic view of the adaptation end of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0029] Figure 7 It is the side view schematic view of the adaptation end of the rotary drilling cast-in-place pile hole cleaning device of the embodiment of the application;

[0030] Figure 8 It is the side view schematic view when the support column and the roller are installed to the fixed plate of the embodiment of the application;

[0031] Figure 9 It is the side view schematic view when the support column, the roller and the cover plate are installed to the fixed plate of the embodiment of the application;

[0032] Figure 10 It is the Figure 1 The enlarged schematic view of mark A in the embodiment of the application.

[0033] Reference signs:

[0034] 100 - centrifugal pump,

[0035] 200 - pump slurry pipe,

[0036] 300 - drainage pipe,

[0037] 400 - fixed plate, 410 - liquid inlet cavity, 420 - liquid outlet cavity, 421 - sediment cavity, 422 - slurry cavity, 430 - first filter layer, 440a - liquid outlet hole, 440b - liquid inlet hole, 450 - second filter layer, 460 - slag removal port, 470 - bolt connection block, 480 - connection hole, 490 - main circular arc groove, 491 - insertion groove,

[0038] 500 - cover plate,

[0039] 600 - adapter end, 610 - secondary circular arc groove, 620 - strip block,

[0040] 700 - roller,

[0041] 800 - lifting column,

[0042] 900 - liquid outlet pipe. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0044] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0046] In addition, if the terms "first", "second", "third" and the like are used herein, they are merely used to distinguish one entity from another, and do not necessarily indicate or imply a relative importance of the entities.

[0047] In addition, if the terms "horizontal", "vertical", "suspended" and the like are used, they do not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0048] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, if the terms "set", "install", "connect", "connect" and the like are used, they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0050] It should be understood that when the utility anti-circulation method is used to clean the sediment in the pile hole, the sedimentation tank and the slurry tank need to occupy a certain land area, especially in a small or complex environment, which may limit the construction layout and affect the construction.

[0051] At the same time, the existing hole cleaning device needs to use different size and model hole cleaning devices for different hole diameters of the pile hole, so that the construction party needs to prepare a variety of models of hole cleaning devices, thereby increasing the cost.

[0052] In order to improve the above problems, the present embodiment provides a rotary drilling bored pile hole cleaning device, mainly comprising a centrifugal pump and two fixing plates. The device is mainly used for cleaning the sediment in the pile hole, and does not occupy much ground space.

[0053] In the present embodiment, as shown in Figures 1-2 The centrifugal pump 100 is arranged on the upper side of the pile hole, and the lower side of the centrifugal pump 100 is provided with a pump slurry pipe 200, which communicates with the centrifugal pump 100 and is used to separate the slurry and sediment in the pile hole.

[0054] The two fixing plates 400 are symmetrically arranged relative to the pump slurry pipe 200, and the opposite end faces of the two fixing plates 400 are detachably connected. Specifically, when the two fixing plates 400 are connected, the opposite end faces of the two fixing plates 400 abut against and fit with the pump slurry pipe 200, so as to fix the pump slurry pipe 200.

[0055] The fixing plate 400 may be a polygonal body such as a cylinder, a rectangle, a trapezoid, etc. In this embodiment, the fixing plate 400 is a rectangle.

[0056] Among them, such as Figure 1 As shown, one end of the two fixing plates 400 is provided with a main arc groove 490, and the two main arc grooves 490 are adapted to the pump slurry pipe 200. Bolt connection blocks 470 are provided on both sides of the main arc groove 490. Specifically, the outer walls on both sides of the opposite ends of the two fixing plates 400 are provided with bolt connection blocks 470. When the two fixing plates 400 are connected, the two fixing plates 400 are bolted together by four bolt connection blocks 470, and the main arc surface is against and fits the outer wall of the pump slurry pipe 200, thereby stably fixing the pump slurry pipe 200.

[0057] In this embodiment, Figure 1 As shown, a plurality of lifting columns 800 are provided on the lower surface of the fixed plate 400, and the plurality of fixing columns are arranged on the lower surface of the fixed plate 400 away from the end of the pumping pipe 200, and the plurality of lifting columns 800 are arranged in sequence and spaced apart in a direction parallel to the side of the lower surface of the fixed plate 400 away from the end of the pumping pipe 200, so as to support the fixed plate 400. At the same time, the height of the fixed plate 400 is adjusted by lifting and lowering the lifting columns 800, so that the fixed plate 400 can fix the outer walls of the pumping pipe 200 at different heights.

[0058] In this embodiment, the lifting column 800 can adopt a lifting device such as a telescopic rod, an electric push rod, a hydraulic cylinder, etc.

[0059] In this embodiment, Figure 1 As shown, a plurality of rollers 700 are provided on the circumference of the lower surface of the fixing plate 400 and are arranged at intervals in sequence, so that the fixing plate 400 can be easily transported.

[0060] like Figures 1-4As shown, the fixed plate 400 is provided with a liquid inlet cavity 410 and a liquid outlet cavity 420, and the centrifugal pump 100 is provided with a drainage pipe 300 on both sides. The liquid outlet cavity 420 is provided with a first filter layer 430 between the liquid inlet cavity 410 and the liquid outlet cavity 420, so as to separate the liquid inlet cavity 410 and the liquid outlet cavity 420, and the liquid inlet cavity 410 and the liquid outlet cavity 420 are communicated through the first filter layer 430. The liquid inlet cavity 410 is away from the pump slurry pipe 200, and the liquid outlet cavity 420 is close to the pump slurry pipe 200. The fixed plate 400 is provided with a liquid inlet hole 440b on the upper side, and the liquid inlet hole 440b is arranged on the upper side of the liquid inlet cavity 410. The two drainage pipes 300 are communicated with the liquid inlet holes 440b on the upper side of the two liquid inlet cavities 410 respectively. The liquid outlet cavity 420 is provided with a liquid outlet hole 440a and a liquid outlet pipe 900 on the lower side, and the liquid outlet hole 440a is communicated with the liquid outlet pipe 900. Therefore, the slurry and the sediment enter the fixed plate 400 through the centrifugal pump 100 and the drainage pipe 300, and then pass through the liquid inlet cavity 410, the first filter layer 430, the liquid outlet cavity 420 and the liquid outlet hole 440a in turn and return to the pile hole, so as to realize the reverse circulation and clean the pile hole.

[0061] The first filter layer 430 filters the sediment in the slurry. The filtered slurry returns to the pile hole through the first filter layer 430, the liquid outlet cavity 420 and the liquid outlet hole 440a, then drives the sediment in the pile hole, and under the action of the centrifugal pump 100, enters the structures such as the pump slurry pipe 200, the centrifugal pump 100 and the drainage pipe 300 again, and circulates repeatedly until the cleaning work is completed.

[0062] In the embodiment, the pump slurry pipe 200 is fixed by the fixed plate 400, and the liquid inlet cavity 410, the liquid outlet cavity 420 and the first filter layer 430 are arranged in the fixed plate 400. The liquid inlet cavity 410 of the centrifugal pump 100 is communicated with the fixed plate 400 through the drainage pipe 300. Therefore, the slurry and the sediment pass through the pump slurry pipe 200, the centrifugal pump 100, the drainage pipe 300 and the fixed plate 400 in turn, so as to complete the cleaning work of the sediment, and further, the sedimentation tank and the slurry tank are not needed to be dug, the construction efficiency is improved, and the ground space is avoided to be occupied.

[0063] In some embodiments, as shown in the drawings, Figures 1-4 As shown, the liquid outlet cavity 420 includes a sediment cavity 421 and a slurry cavity 422, and the sediment cavity 421 and the slurry cavity 422 are provided with a second filter layer 450. The sediment cavity 421 is arranged between the first filter layer 430 and the second filter layer 450, and the liquid outlet hole 440a is communicated with the slurry cavity 422. Specifically, the second filter layer 450 has a gap between the upper end and the inner wall of the upper side of the fixed plate 400, and the gap can be set according to the minimum size of the filtered sediment, so as to ensure that the sediment is filtered by the second filter layer 450, and the slurry can enter the slurry cavity 422 through the second filter layer 450 and the gap on the upper side of the second filter layer 450.

[0064] In the embodiment, the filter holes of the first filter layer 430 are larger than the filter holes of the second filter layer 450, so that the first filter layer 430 filters the larger size sediment first, and then the second filter layer 450 filters the smaller size sediment, thereby avoiding that when only one filter layer is used, the larger size sediment will block the filter holes, thereby reducing the efficiency of the mud passing through the filter layer.

[0065] In the embodiment, the filter hole size of the first filter layer 430 and the filter hole size of the second filter layer 450 can be set according to the size of the sediment.

[0066] In some embodiments, as shown in Figure 1 and Figure 10 In some embodiments, as shown in

[0067] In the embodiment, as shown in Figures 8-9 the shape of the sediment discharge port 460 is consistent with the shape of the side of the fixed plate 400 away from the pump mud pipe 200, and the upper side of the sediment discharge port 460 is provided with a plurality of connecting holes 480, the connecting holes 480 are arranged on the outer wall of the side of the fixed plate 400 away from the pump mud pipe 200, and the two cover plates 500 are bolted with the two sediment discharge ports 460 through the plurality of connecting holes 480, so that the cover plate 500 closes the sediment discharge port 460, thereby avoiding the sediment from falling out of the liquid inlet cavity 410 at any time, so that it is difficult to clean.

[0068] In the embodiment, the cover plate 500 can be a transparent cover plate 500, so that the accumulation of sediment in the liquid inlet cavity 410 can be observed at any time, and the sediment in the liquid inlet cavity 410 can be cleaned at any time.

[0069] In some embodiments, as shown in Figures 3-7 In some embodiments, as shown in

[0070] In the embodiment, as shown in Figures 5-7As shown, the outer side wall of the adapter end 600 is provided with a plurality of longitudinal strip blocks 620. Specifically, the plurality of strip blocks 620 are sequentially and spaced apart along the circumference of the outer side wall of the adapter end 600. The slot wall of the main circular arc slot 490 is provided with a plurality of longitudinal insertion grooves 491 adapted to the strip blocks 620. The plurality of insertion grooves 491 are sequentially and spaced apart along the circumference of the slot wall of the main circular arc slot 490. The length of the strip block 620 is consistent with that of the insertion groove 491. When the adapter end 600 is connected to the fixing plate 400, the plurality of strip blocks 620 on the outer side wall of the adapter end 600 are inserted into the plurality of insertion grooves 491 on the slot wall of the main circular arc slot 490. Thus, the outer side wall of the adapter end 600 and the slot wall of the main circular arc slot 490 are connected through the plurality of strip blocks 620 and the plurality of insertion grooves 491. Therefore, the fixing plate 400 is applicable to pump slurry pipes 200 of different sizes.

[0071] In this embodiment, the bottom of the insertion groove 491 is the lower side wall of the fixing plate 400. Thus, when the strip block 620 of the adapter end 600 is inserted into the insertion groove 491, the lower side wall of the fixing plate 400 supports the lower end face of the strip block 620.

Claims

1. A rotary drilling bored pile hole cleaning device, characterized by, The utility model relates to a centrifugal pump (100) is provided with pump pulp pipe (200) on the downside, and both sides of centrifugal pump (100) are provided with drainage pipe (300), and two fixed plates (400) are oppositely arranged on both sides of pump pulp pipe (200), and the opposite end faces of two fixed plates (400) are detachably connected. The fixed plate (400) is provided with a liquid inlet cavity (410) and a liquid outlet cavity (420), a first filter layer (430) is arranged between the liquid inlet cavity (410) and the liquid outlet cavity (420), the liquid inlet cavity (410) is away from the pump pulp pipe (200), the liquid outlet cavity (420) is close to the pump pulp pipe (200), two drainage pipes (300) are respectively communicated with two liquid inlet cavities (410), and a liquid outlet hole (440a) is arranged on the lower side of the liquid outlet cavity (420). The liquid outlet cavity (420) comprises a sediment cavity (421) and a slurry cavity (422), a second filter layer (450) is arranged between the sediment cavity (421) and the slurry cavity (422), the sediment cavity (421) is arranged between the first filter layer (430) and the second filter layer (450), and the liquid outlet hole (440a) is communicated with the slurry cavity (422). The lower side of the side of the fixed plate (400) away from the pump pulp pipe (200) is provided with a slag removal opening (460) communicated with the liquid inlet cavity (410).

2. The cast-in-place pile hole cleaning device according to claim 1, characterized in that: The first filter layer (430) is arranged at the lower end of the slag removal opening (460), and the upper end of the fixed plate (400) is arranged on the inner wall of the upper side of the fixed plate (400) and away from the slag removal opening (460).

3. The cast-in-place pile hole cleaning device according to claim 2, characterized in that: Further comprising two cover plates (500), a plurality of connecting holes (480) are arranged on the upper side of the slag removal opening (460), the connecting holes (480) are arranged on the outer wall of the fixed plate (400), and two cover plates (500) are bolted with two slag removal openings (460) through a plurality of connecting holes (480).

4. The cast-in-place pile hole cleaning device according to claim 3, characterized in that: Both of the fixed plates (400) are provided with a main circular arc groove (490), and both of the main circular arc grooves (490) are adapted to the pump pulp pipe (200).

5. The cast-in-place pile hole cleaning device according to claim 4, characterized in that: Both sides of the main circular arc groove (490) are provided with a bolted block (470), and the two fixed plates (400) are bolted through four bolted blocks (470).

6. The cast-in-place pile hole cleaning device of claim 1, wherein: Further comprising a plurality of adaptive ends (600), the outer side walls of the plurality of adaptive ends (600) are adapted to the main circular arc grooves (490) and detachably connected, and the inner side walls of the plurality of adaptive ends (600) are respectively provided with different sizes of secondary circular arc grooves (610).

7. The cast-in-place pile hole cleaning device according to claim 6, characterized in that: The outer side wall of the adaptive end (600) is provided with a plurality of longitudinal strip blocks (620), the groove wall of the main circular arc groove (490) is provided with a plurality of longitudinal insertion grooves (491) adapted to the strip blocks (620), and the outer side wall of the adaptive end (600) and the groove wall of the main circular arc groove (490) are inserted through a plurality of strip blocks (620) and a plurality of insertion grooves (491).

8. The cast-in-place pile hole cleaning device of claim 6, wherein: ​ 9. The cast-in-place pile hole cleaning device according to claim 8, characterized in that: ​ 10. The cast-in-place pile hole cleaning device of claim 1, wherein: The lower surface of the fixing plate (400) is provided with a plurality of rollers (700) arranged in sequence and a plurality of lifting columns (800).

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