Sediment cleaning device in pile foundation engineering

Abstract

The utility model relates to the technical field of pile foundation construction, in particular to a sediment cleaning device in pile foundation engineering, which comprises a frame, a cleaning mechanism and a stirring mechanism. The cleaning mechanism comprises a cleaning box with an opening in the bottom and a sealing plate movably arranged at the bottom of the cleaning box, and the cleaning box is arranged below the rack in a lifting mode. The stirring mechanism comprises a stirring shaft, a drill bit and a stirring impeller, the hollow upper end of the stirring shaft is rotationally connected with the rack, the middle of the stirring shaft movably penetrates through the cleaning box, the drill bit is installed at the lower end of the stirring shaft and provided with an air outlet communicated with the stirring shaft, and the upper end of the stirring shaft is connected with air inlet equipment; the stirring impeller is arranged on the outer side of the stirring shaft and located between the cleaning box and the drill bit, and a first driving mechanism for driving the stirring shaft to rotate is arranged on the rack. The drill bit extends into sediment to rotate and ventilate, the sediment at the bottom of the well can be blown up and disturbed, and the sediment and water can be quickly mixed into slurry in cooperation with rotation of the stirring impeller.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile foundation construction technical field, more specifically, especially relates to a pile foundation engineering in sediment cleaning device. BACKGROUND

[0002] The construction method of the present pile foundation is: using rotary drilling rig to drill hole on the ground, then put the reinforcement cage into the hole, then pour concrete into the hole, thus forming the pile. But in the drilling process, the soil of the hole wall falls into the hole and forms sediment at the bottom of the hole. If there is too much sediment at the bottom of the hole, the hardness of the sediment is relatively soft after pouring concrete, which is not conducive to the stable placement of the pile, resulting in the risk of unstable pile foundation.

[0003] Therefore, when sediment appears at the bottom of the hole, the sediment at the bottom of the hole needs to be cleaned. The current cleaning method is: pouring water into the hole to make the water and sediment mixed to form slurry, and then pumping the slurry in the hole out through the slurry pump, thus realizing the cleaning of the sediment. But this cleaning method has the following shortcomings: because the slurry in the hole is pumped out by the slurry pump, in order to ensure the fluidity of the slurry and avoid the blockage of the slurry in the pumping process, the slurry cannot be too thick, so a large amount of water needs to be poured into the hole to make the sediment form a relatively thin slurry, which is relatively wasteful of water. In addition, it is necessary to set up a water storage tank at the construction site, which is troublesome and has a poor surrounding environment. In addition, in order to ensure the pumping effect of the slurry and clean the sediment completely, water needs to be repeatedly injected into the hole, and the cleaning needs to be repeatedly performed, which is time-consuming and inefficient, and affects the subsequent construction of the pile foundation. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a pile foundation engineering in sediment cleaning device to overcome the above-mentioned shortcomings.

[0005] A pile foundation engineering in sediment cleaning device, comprising a rack, a cleaning mechanism and a stirring mechanism. The cleaning mechanism comprises a cleaning box with an opening at the bottom and a closing plate movably arranged at the bottom of the cleaning box, and the cleaning box is liftably arranged below the rack. The stirring mechanism comprises a stirring shaft, a drill bit and a stirring impeller, the stirring shaft is hollowly arranged, the upper end of the stirring shaft is rotatably connected with the rack, the middle part of the stirring shaft movably penetrates the cleaning box, the lower end of the stirring shaft is provided with the drill bit, the drill bit is provided with an air outlet communicated with the stirring shaft, the upper end of the stirring shaft is connected with an air inlet device, the stirring impeller is arranged outside the stirring shaft and between the cleaning box and the drill bit, and the rack is provided with a first driving mechanism for driving the stirring shaft to rotate.

[0006] Further, the rack comprises an upper rack plate and a lower rack plate, the lower rack plate and the cleaning box are sequentially arranged below the upper rack plate, and the upper rack plate is used for connecting the base of the drill rod of the rotary drilling rig.

[0007] Further, the upper end of the stirring shaft penetrates the lower frame plate and is rotationally connected with the lower frame plate, the air inlet device comprises an air inlet pipe and an air pump, and the upper end of the stirring shaft is rotationally connected with the air inlet pipe through a joint.

[0008] Further, the stirring vane is a three-leaf open turbine stirring vane, and the drill bit has a conical structure.

[0009] Further, the first driving mechanism comprises a first motor, a first driving gear and a first driven gear, the first motor is installed on the lower frame plate, the first driving gear is fixedly connected with an output shaft of the first motor, and the first driven gear is fixedly sleeved outside the stirring shaft and is in meshing connection with the first driving gear.

[0010] Further, the bottom surface of the upper frame plate is vertically fixed with an extension rod, the extension rod penetrates the lower frame plate and is connected with the top surface of the cleaning box.

[0011] Further, the cleaning box is vertically provided with a shaft hole, the stirring shaft penetrates the shaft hole, a sleeve is sleeved outside the stirring shaft, the upper end of the sleeve is rotationally connected with the lower frame plate, the cleaning box and the sealing plate are slidably sleeved outside the sleeve in an up-down mode, the sealing plate is synchronously rotated with the sleeve, and the rack is provided with a second driving mechanism for driving the sleeve to rotate.

[0012] Further, the lower end of the cleaning box is provided with an annular groove, the edge of the sealing plate is slidably arranged in the annular groove, and the sealing plate is provided with a communication hole matched with the opening.

[0013] Further, the second driving mechanism comprises a second motor, a second driving gear and a second driven gear, the second motor is installed on the bottom surface of the lower frame plate, the second driving gear is fixedly connected with an output shaft of the second motor, and the second driven gear is fixedly sleeved outside the sleeve and is in meshing connection with the second driving gear.

[0014] Further, the sleeve is vertically provided with a clamping groove in an elongated structure, a mounting hole is formed in the middle portion of the sealing plate, and a clamping plate matched with the clamping groove is fixedly arranged in the mounting hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The pile foundation engineering sediment cleaning device in the utility model, after the sediment cleaning device is lowered into the hole, the drill bit is inserted into the sediment at the bottom of the hole, air is passed into the stirring shaft through the air inlet device and the stirring shaft is rotated, the stirring shaft drives the stirring blade and the drill bit to rotate, the air outlet of the drill bit passes air outward, the stirring blade agitates the sediment and water, so that the sediment and water can be fully mixed, the mixing efficiency of the water and the sediment is improved, so that the sediment is accelerated to become mud. When the sediment becomes mud, because the mud is soft, the cleaning box is lowered, the cleaning box presses the mud downward, and the mud flows into the cleaning box through the bottom opening of the cleaning box, so that the mud is boxed. When the mud is boxed, the closing plate closes the opening, and then the cleaning box is lifted upward, the opening is opened again when the cleaning box is taken out of the hole, the mud in the cleaning box flows out from the opening, so that the sediment in the hole is cleaned. The drill bit is inserted into the sediment and rotated and aerated, the sediment at the bottom of the well can be blown up, the sediment is disturbed, and the sediment and water are mixed into mud quickly by cooperating with the rotation of the stirring blade wheel. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0018] Figure 1 It is the overall structure schematic view of the pile foundation engineering sediment cleaning device in the utility model.

[0019] Figure 2 It is the overall structure schematic view of the pile foundation engineering sediment cleaning device in the utility model from another perspective.

[0020] Figure 3 It is the sectional view of the pile foundation engineering sediment cleaning device in the utility model.

[0021] Figure 4 It is the structure schematic view of the stirring mechanism in the utility model.

[0022] Figure 5 It is the structure schematic view of the cleaning box in the utility model.

[0023] Figure 6 It is the structure schematic view of the closing plate in the utility model.

[0024] In the diagram: 1. Cleaning box; 2. Enclosed plate; 3. Opening; 4. Stirring shaft; 5. Drill bit; 6. Stirring impeller; 7. Air outlet; 8. Upper frame plate; 9. Lower frame plate; 10. Air inlet pipe; 11. First motor; 12. First driving gear; 13. First driven gear; 14. Telescopic rod; 15. Sleeve; 16. Annular groove; 17. Connecting hole; 18. Shaft hole; 19. Second motor; 20. Second driving gear; 21. Second driven gear; 22. Slot; 23. Plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-6 As shown, the sediment cleaning device in the pile foundation project of this embodiment includes a frame, a cleaning mechanism, and a mixing mechanism. The cleaning mechanism includes a cleaning box 1, with an opening 3 at the bottom of the cleaning box 1. A closing plate 2 is movably installed at the bottom of the cleaning box 1, which is used to open or close the opening 3. The cleaning box 1 is vertically and can be installed below the frame. The cleaning box 1 has a vertical shaft hole 18.

[0027] The mixing mechanism includes a mixing shaft 4, a drill bit 5, and a mixing impeller 6. The mixing shaft 4 is hollow, with its upper end rotatably connected to the frame, and its middle part movably passing through the shaft hole 18 of the cleaning box 1. The drill bit 5 is installed at the lower end of the mixing shaft 4. The drill bit 5 has an inverted conical structure and is provided with an air outlet 7 communicating with the mixing shaft 4. Several air outlets 7 are distributed in a ring array on the drill bit 5. An air inlet device is connected to the upper end of the mixing shaft 4. The mixing impeller 6 is located outside the mixing shaft 4 and between the cleaning box 1 and the drill bit 5. A first drive mechanism for driving the mixing shaft 4 to rotate is provided on the frame.

[0028] In this embodiment, the frame includes an upper frame plate 8 and a lower frame plate 9, with the lower frame plate 9 located below the upper frame plate 8, and the cleaning box 1 located below the lower frame plate 9. The upper frame plate 8 is used to connect with the base of the drill rod of the rotary drilling rig, and the connection can be made by means of flange and bolts. Vertical connecting rods can also be fixed between the upper frame plate 8 and the lower frame plate 9 to strengthen the frame.

[0029] In the embodiment, the upper end of the stirring shaft 4 penetrates through the lower frame plate 9 and is rotationally connected with the lower frame plate 9. The stirring shaft 4 can be connected with the lower frame plate 9 through a bearing. The air inlet device includes an air inlet pipe 10 and an air pump (not shown in the figure). A joint is connected to the upper end of the stirring shaft 4. One end of the air inlet pipe 10 is rotationally connected with the joint, and the other end is connected with the air pump. The first driving mechanism includes a first motor 11, a first driving gear 12 and a first driven gear 13. The first motor 11 is installed on the top surface of the lower frame plate 9. The first driving gear 12 is fixedly connected with the output shaft of the first motor 11. The first driven gear 13 is fixedly sleeved outside the stirring shaft 4 and is in meshing connection with the first driving gear 12. The first motor 11 drives the first driving gear 12 to rotate, thereby indirectly driving the first driven gear 13 and the stirring shaft 4 to rotate.

[0030] In the embodiment, the stirring impeller 6 is a three-blade open turbine stirring impeller 6, which has the characteristics of high stirring precision, wide stirring range, fast stirring speed, etc. The mixing effect is good, the material can be quickly and uniformly mixed, and it is suitable for mixing various forms of materials such as liquid, powder and fragments. Preferably, the stirring mechanism of the embodiment further includes a protective ring, which is arranged around the stirring impeller 6 and can protect the blades of the stirring impeller 6 from the side.

[0031] In the embodiment, the bottom surface of the upper frame plate 8 is vertically fixed with an extension rod 14. The extension rod 14 penetrates through the lower frame plate 9 and is connected with the top surface of the cleaning box 1. The extension rod 14 drives the cleaning box 1 to rise and fall along the stirring shaft 4, so that the mud enters the cleaning box 1. Specifically, the extension rod 14 can be an electric cylinder, a hydraulic cylinder or a pneumatic cylinder. The upper and lower ends of the fixed end of the extension rod 14 are fixedly connected with the upper frame plate 8 and the lower frame plate 9, respectively.

[0032] In the embodiment, a sleeve 15 is sleeved outside the stirring shaft 4. The sleeve 15 is movably connected with the stirring shaft 4. The upper end of the sleeve 15 is rotationally connected with the lower frame plate 9. Specifically, the upper end of the sleeve 15 can be connected with the lower frame plate 9 through a bearing. The cleaning box 1 and the closure plate 2 are both slidably sleeved outside the sleeve 15. The closure plate 2 rotates synchronously with the sleeve 15. A second driving mechanism is arranged on the rack to drive the sleeve 15 to rotate.

[0033] The opening 3 at the bottom of the cleaning box 1 can be provided with one or more openings 3 in the form of an annular array, in this embodiment, the openings 3 are in the form of a fan-shaped structure and are provided with three openings 3, the area of the opening 3 should be smaller than the area of the bottom plate of the cleaning box 1 between adjacent openings 3. The closing plate 2 is provided with a communication hole 17 matched with the opening 3. The lower end of the cleaning box 1 is provided with an annular groove 16, the annular groove 16 is arranged in the side plate of the cleaning box 1, the edge of the closing plate 2 is slidingly arranged in the annular groove 16, so that the closing plate 2 is rotatably connected with the bottom of the cleaning box 1. The outer side of the sleeve 15 is vertically provided with a clamping groove 22, the clamping groove 22 is in the form of a long strip structure, the middle of the closing plate 2 is provided with a mounting hole, the closing plate 2 is sleeved on the outer side of the sleeve 15 and the mounting hole is fixedly provided with a clamping plate 23 matched with the clamping groove 22, the closing plate 2 is synchronously rotated with the sleeve 15 through the cooperation of the clamping plate 23 and the clamping groove 22, and the opening 3 is opened and closed.

[0034] In this embodiment, the second driving mechanism includes a second motor 19, a second driving gear 20 and a second driven gear 21, the second motor 19 is installed on the bottom surface of the lower shelf plate 9, the second driving gear 20 is fixedly connected with the output shaft of the second motor 19, and the second driven gear 21 is fixedly sleeved on the outer side of the sleeve 15 and engaged with the second driving gear 20. The second motor 19 drives the second driving gear 20 to rotate, thereby indirectly driving the second driven gear 21 and the sleeve 15 to rotate.

[0035] The working principle of the pile foundation sediment cleaning device in this embodiment is as follows:

[0036] The use process of the pile foundation sediment cleaning device in this embodiment is as follows: after the pile foundation drilling is completed, water is injected into the hole, and the base of the drill rod of the rotary excavator is connected with the upper shelf plate 8 of the sediment cleaning device. The sediment cleaning device is lowered into the hole by the rotary excavator until the drill bit 5 extends into the interior of the sediment. Air is supplied to the stirring shaft 4 through the air inlet device and the stirring shaft 4 is rotated, the stirring shaft 4 drives the stirring blade and the drill bit 5 to rotate, at the same time, the air outlet 7 of the drill bit 5 supplies air outward to blow up the sediment, the stirring blade stirs the sediment and water, and the sediment and water are mixed into mud slurry. The air supply is stopped and the stirring shaft 4 stops rotating, the sleeve 15 and the closing plate 2 are rotated by the second driving mechanism to open the opening 3 at the bottom of the cleaning box 1, then the cleaning box 1 is moved downward by the telescopic rod 14, the cleaning box 1 presses down the mud slurry, at the same time, the mud slurry flows into the cleaning box 1 through the bottom opening 3 of the cleaning box 1, thereby realizing the boxing of the mud slurry. When the mud slurry is boxed, the opening 3 is closed by the closing plate 2, then the cleaning box 1 is lifted upward, when the cleaning box 1 is taken out of the hole, the opening 3 is opened, the mud slurry in the cleaning box 1 flows out from the opening 3, thereby realizing the cleaning of the sediment in the hole.

[0037] In the embodiment, the drill bit 5 extends into the sediment and rotates and ventilates, can blow up the sediment at the well bottom, produces the stirring effect to the sediment, and cooperates the rotation of the stirring impeller 6, can quickly mix the sediment and water into the slurry.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and is not used to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A sediment cleaning device in a pile foundation work, characterized by, The machine frame, the cleaning mechanism and the stirring mechanism are included. The cleaning mechanism includes a cleaning box (1) with an opening (3) at the bottom and a closing plate (2) movably arranged at the bottom of the cleaning box (1), and the cleaning box (1) is arranged below the machine frame in a lifting manner. The stirring mechanism includes a stirring shaft (4), a drill bit (5) and a stirring impeller (6), the stirring shaft (4) is hollowly arranged, the upper end of the stirring shaft (4) is rotatably connected with the machine frame, the middle part of the stirring shaft (4) penetrates the cleaning box (1), and the lower end of the stirring shaft (4) is provided with the drill bit (5), the drill bit (5) is provided with an air outlet (7) communicated with the stirring shaft (4), the upper end of the stirring shaft (4) is connected with an air inlet device, the stirring impeller (6) is arranged outside the stirring shaft (4) and located between the cleaning box (1) and the drill bit (5), and the machine frame is provided with a first driving mechanism for driving the stirring shaft (4) to rotate.

2. A pile foundation engineering sediment cleaning device according to claim 1, characterized in that, The machine frame includes an upper frame plate (8) and a lower frame plate (9), the lower frame plate (9) and the cleaning box (1) are sequentially arranged below the upper frame plate (8), and the upper frame plate (8) is used for connecting the base of a rotary drilling machine.

3. A pile foundation engineering sediment cleaning device according to claim 2, characterized in that, The upper end of the stirring shaft (4) penetrates the lower frame plate (9) and is rotatably connected with the lower frame plate (9), the air inlet device includes an air inlet pipe (10) and an air pump, and the upper end of the stirring shaft (4) is rotatably connected with the air inlet pipe (10) through a joint.

4. A pile foundation engineering sediment cleaning device according to claim 3, characterized in that, The stirring impeller (6) is a three-blade open turbine stirring impeller (6), and the drill bit (5) has a conical structure.

5. A pile foundation engineering sediment cleaning device according to claim 4, characterized in that, The first driving mechanism includes a first motor (11), a first driving gear (12) and a first driven gear (13), the first motor (11) is mounted on the lower frame plate (9), the first driving gear (12) is fixedly connected with the output shaft of the first motor (11), and the first driven gear (13) is fixedly arranged outside the stirring shaft (4) and is engaged with the first driving gear (12).

6. A pile foundation engineering sediment cleaning device according to claim 5, characterized in that, The upper surface of the upper frame plate (8) is vertically fixed with an extension rod (14), the extension rod (14) penetrates the lower frame plate (9) and is connected with the top surface of the cleaning box (1).

7. A pile foundation engineering sediment cleaning device according to claim 6, characterized in that, The cleaning box (1) is vertically provided with a shaft hole (18), the stirring shaft penetrates the shaft hole (18), a sleeve (15) is arranged outside the stirring shaft, the upper end of the sleeve (15) is rotatably connected with the lower frame plate (9), the cleaning box (1) and the closing plate (2) are slidably arranged outside the sleeve (15), the closing plate (2) rotates synchronously with the sleeve (15), and the machine frame is provided with a second driving mechanism for driving the sleeve (15) to rotate.

8. A pile foundation engineering sediment cleaning device according to claim 7, characterized in that, The lower end of the cleaning box (1) is provided with an annular groove (16), the edge of the closing plate (2) is slidably arranged in the annular groove (16), and the closing plate (2) is provided with a communication hole (17) matched with the opening (3).

9. A pile foundation engineering sediment cleaning device according to claim 8, characterized in that, The second driving mechanism comprises a second motor (19), a second driving gear (20) and a second driven gear (21), the second motor (19) is installed on the bottom surface of the lower frame plate (9), the second driving gear (20) is fixedly connected with the output shaft of the second motor (19), and the second driven gear (21) is fixedly sleeved outside the sleeve (15) and engaged with the second driving gear (20).

10. A pile foundation engineering pile cuttings cleaning device according to claim 9, characterised in that, A clamping groove (22) is vertically arranged outside the sleeve (15), the clamping groove (22) has an elongated structure, a mounting hole is formed in the middle of the closing plate (2), and a clamping plate (23) matched with the clamping groove (22) is fixedly arranged in the mounting hole.

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