Cast-in-situ bored pile sediment cleaning device

Abstract

The utility model discloses a cast-in-situ bored pile sediment cleaning device which comprises a cover body, the cover body is in an inverted funnel shape, the top end of the cover body is provided with a discharge port, the discharge port is connected with a slurry pump through a hose, the outer wall of the cover body is fixedly connected with an annular cover shell, the top of the annular cover shell is fixedly connected with a plurality of lifting lugs, and the lifting lugs are fixedly connected with the cover body. According to the device, in the descending process of the cover body, large-particle sediment in a pile hole cannot penetrate through the cover body in a large quantity and can only be pumped out by a slurry pump from a discharging opening, when the cover body moves downwards in the pile hole, a submersible motor is started to drive all stirring impellers to rotate, and the stirring impellers are driven to rotate; according to the pile hole cleaning device, mud in a pile hole can be stirred, so that sediment at the bottom of the hole is stirred up, the situation that the sediment at the bottom of the hole cannot be pumped out through a discharging port is avoided, the sediment cleaning effect is ensured, the hole cleaning efficiency is high, and the using effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical direction of bored cast-in-place piles, and particularly relates to a device for cleaning sediment in bored cast-in-place piles. Background Technique

[0002] A bored cast-in-place pile refers to a pile formed by means of mechanical drilling, steel pipe soil extrusion or manual excavation at the construction site in the foundation soil, and a steel reinforcement cage is placed therein and concrete is poured. According to different hole-forming methods, cast-in-place piles can be divided into several categories such as pipe-sinking cast-in-place piles, bored cast-in-place piles and dug cast-in-place piles.

[0003] After the drilling of the pile hole is completed, it is necessary to clean the sediment in the pile hole to ensure that the designed bearing capacity can be achieved after the construction of the cast-in-place pile. At present, the hole cleaning method usually adopts the positive circulation rotary drilling rig, the reverse circulation rotary machine vacuum suction dredger pumping method, etc. for hole cleaning. When such methods are actually applied, some sediment will float in the pile hole with the water flow and cannot be completely carried out of the hole by the water flow or pumped out by the mud pump. The hole cleaning efficiency is low and the effect is not good. For this reason, we propose a device for cleaning sediment in bored cast-in-place piles. Content of the Utility Model

[0004] The purpose of the utility model is to propose a device for cleaning sediment in bored cast-in-place piles for the existing technology to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A device for cleaning sediment in bored cast-in-place piles, including a cover body and a pile hole. The cover body is in the shape of an inverted funnel, and the outer diameter of the cover body is adapted to the inner diameter of the pile hole. The top of the cover body is provided with a discharge port, and a hose is arranged on the outer wall of the discharge port. The discharge port is connected to a mud pump through the hose. The outer wall of the cover body is fixedly connected with an annular cover shell. The top of the annular cover shell is fixedly connected with a plurality of lifting lugs, and the lifting lugs are connected to a lifting device through steel wires. A plurality of rotating shafts are rotatably connected in the annular cover shell, and the plurality of rotating shafts are connected to each other in a transmission manner. The bottom ends of the rotating shafts penetrate into the cover body and are fixedly connected with stirring impellers. The top of the annular cover shell is fixedly connected with a submersible motor, and the output shaft of the submersible motor is fixedly connected to the top end of one of the rotating shafts.

[0006] Preferably, the outer walls of the rotating shafts located in the annular cover shell are fixedly sleeved with first sprockets, and the plurality of first sprockets are connected in a transmission manner through a chain. A plurality of auxiliary sprockets are rotatably installed in the annular cover shell, and the auxiliary sprockets are all matched with the chain.

[0007] Preferably, a plurality of water outlet holes are opened on the top outer wall of the cover body, and filter nets are fixedly connected to the corresponding positions of the outer wall of the cover body and the water outlet holes.

[0008] Preferably, the cover body is connected to a guiding frame through a guiding mechanism. The guiding frame is fixedly installed directly above the orifice of the pile hole by pile nails. A plurality of through holes are provided through the top of the guiding frame. The hose, the steel wire rope, and the wires of the submersible motor pass through the corresponding through holes. The wires of the submersible motor pass through the through holes into the pile hole and are connected to the cable reel.

[0009] Preferably, the guiding mechanism includes a conduit fixedly penetrating through the guiding frame. A guide rod is slidably penetrated through the inner side of the conduit. A screw rod is fixedly provided at the bottom end of the guide rod. At the corresponding positions of the top of the cover body and each conduit, a connecting seat is fixedly connected. Threaded holes are provided at the connecting seat and the top end of the guide rod, and the threaded holes are all adapted to the screw rod.

[0010] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model,

[0011] (1) When the cover body is descending, large-particle sediment in the pile hole cannot pass through the cover body in large quantities and can only be pumped out by the mud pump through the discharge port. When the cover body moves downward in the pile hole, the submersible motor is started to drive each stirring impeller to rotate, so as to stir the mud in the pile hole, thereby stirring up the sediment at the bottom of the hole, avoiding the situation that the discharge port cannot pump out the sediment at the bottom of the hole, ensuring the cleaning effect of the sediment, and having high hole cleaning efficiency and good use effect. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 It is a schematic structural diagram of a device for cleaning sediment in bored cast-in-place piles.

[0014] Figure 2 is Figure 1 a partial enlarged view of

[0015] Figure 3 It is a schematic distribution structure diagram of the first sprocket in a device for cleaning sediment in bored cast-in-place piles.

[0016] In the figure: 1, guiding frame; 2, pile nail; 3, through hole; 4, cover body; 5, discharge port; 6, hose; 7, lifting lug; 8, connecting seat; 9, guide rod; 10, screw rod; 11, threaded hole; 12, conduit; 13, annular cover shell; 14, rotating shaft; 15, first sprocket; 16, chain; 17, auxiliary sprocket; 18, submersible motor; 19, stirring impeller; 20, water outlet hole; 21, filter screen; 22, pile hole. Detailed Embodiments

[0017] The technical solution of the present utility model will be further described in detail in conjunction with the preferred embodiments and their accompanying drawings in a non-limiting manner. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3 , the present utility model provides a technical solution: a device for cleaning sediment in bored cast-in-place piles, including a cover body 4 and a pile hole 22. The cover body 4 is in the shape of an inverted funnel, and the outer diameter of the cover body 4 is adapted to the inner diameter of the pile hole 22. The top end of the cover body 4 is provided with a discharge port 5, and a flexible hose 6 is arranged on the outer wall of the discharge port 5. The discharge port 5 is connected to a mud pump through the flexible hose 6. The mud pump pumps the mud pumped out from the pile hole 22 into a mud pool located outside the pile hole 22. After the mud in the mud pool is precipitated and filtered, it is then discharged back into the pile hole 22 through a pipeline. The outer wall of the cover body 4 is fixedly connected with an annular cover shell 13. The top of the annular cover shell 13 is fixedly connected with a plurality of lifting lugs 7, and the lifting lugs 7 are connected to a lifting device through steel wires. The lifting device can be a crane or a winch, etc. A plurality of rotating shafts 14 are rotatably connected in the annular cover shell 13, and the plurality of rotating shafts 14 are connected to each other in a transmission manner. The bottom ends of the rotating shafts 14 penetrate into the cover body 4 and are fixedly connected with stirring impellers 19. The top of the annular cover shell 13 is fixedly connected with a submersible motor 18, and the output shaft of the submersible motor 18 is fixedly connected to the top end of one of the rotating shafts 14.

[0019] By adopting the above scheme, the present utility model uses the lifting device to unwind the steel wire to extend the cover body 4 into the pile hole 22. After that, the mud pump is started, and the mud in the pile hole 22 can be pumped into the mud pool through the flexible hose 6. After the mud in the mud pool is precipitated and filtered, it is then discharged back into the pile hole 22 through a pipeline. During the descending process of the cover body 4, the large-particle sediment in the pile hole 22 cannot pass through the cover body 4 in large quantities and can only be pumped out by the mud pump through the discharge port 5. When the cover body 4 moves downward in the pile hole 22, the submersible motor 18 is started to drive each stirring impeller 19 to rotate, which can stir the mud in the pile hole 22, so as to stir up the sediment at the bottom of the hole, avoiding the situation that the discharge port 5 cannot pump out the sediment at the bottom of the hole, ensuring the cleaning effect of the sediment, with high hole cleaning efficiency and good use effect.

[0020] Specifically in conjunction with Figure 3 , in an embodiment of the present utility model, the outer walls of the rotating shafts 14 located in the annular cover shell 13 are fixedly sleeved with first sprockets 15, and the plurality of first sprockets 15 are connected in a transmission manner through a chain 16. A plurality of auxiliary sprockets 17 are rotatably installed in the annular cover shell 13, and the auxiliary sprockets 17 are all matched with the chain 16.

[0021] By using the cooperation between the first sprocket 15 and the chain 16, starting the submersible motor 18 can drive each rotating shaft 14 to rotate simultaneously, thereby disturbing the mud in the pile hole 22. Through the setting of the auxiliary sprocket 17, the chain 16 can be guided, and the wrap angle of the chain 16 around each sprocket is greater than 90°, thus ensuring the stability of the cooperation between the chain 16 and the sprocket.

[0022] Specifically combined with Figure 2 , in an embodiment of the present invention, a plurality of water outlet holes 20 are opened on the outer wall of the top of the cover body 4, and filter nets 21 are fixedly connected to the corresponding positions of the outer wall of the cover body 4 and the water outlet holes 20.

[0023] Through the setting of the water outlet holes 20, the mud in the pile hole 22 can pass through the cover body 4, thereby reducing the resistance received by the cover body 4 when sinking in the pile hole 22. Through the setting of the filter nets 21, it can be avoided that the sediment in the mud is discharged from the water outlet holes 20 to the upper part of the cover body 4.

[0024] Specifically combined with Figure 1 and Figure 2 , in an embodiment of the present invention, the cover body 4 is connected to a guide frame 1 through a guiding mechanism. The guide frame 1 is fixedly installed directly above the orifice of the pile hole 22 through pile nails 2. A plurality of through holes 3 are provided through the top of the guide frame 1. The hose 6, the steel wire rope, and the wire of the submersible motor 18 pass through the corresponding through holes 3. The wire of the submersible motor 18 passes through the through hole 3 and penetrates the pile hole 22 and is connected to a cable reel (also known as a power supply reel).

[0025] Furthermore, the guiding mechanism includes a conduit 12 fixedly penetrated on the guide frame 1. A guide rod 9 is slidably penetrated inside the conduit 12. A screw rod 10 is fixedly provided at the bottom end of the guide rod 9. Connection seats 8 are fixedly connected to the corresponding positions of the top of the cover body 4 and each conduit 12. Threaded holes 11 are provided at the top ends of the connection seats 8 and the guide rod 9, and the threaded holes 11 are all adapted to the screw rod 10.

[0026] Through the cooperation between the guide rod 9 and the conduit 12, the guide frame 1 can be used to guide the cover body 4, thereby preventing the cover body 4 from bumping against the hole wall of the pile hole 22 when lifting and lowering in the pile hole 22, protecting the hole wall and the cover body 4, and at the same time preventing the cover body 4 from rotating in the pile hole 22 when the stirring impeller 19 operates.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bored pile sediment cleaning device, comprising a cover (4) and a pile hole (22), characterized in that: The cover body (4) is in the shape of an inverted funnel. The outer diameter of the cover body (4) is matched with the inner diameter of the pile hole (22). A discharge port (5) is arranged at the top of the cover body (4). A hose (6) is arranged on the outer wall of the discharge port (5). The discharge port (5) is connected to a mud pump via the hose (6). An annular cover shell (13) is fixedly connected to the outer wall of the cover body (4). A plurality of lifting ears (7) are fixedly connected to the top of the annular cover shell (13). The ear (7) is connected to the lifting equipment through a steel wire rope. A plurality of rotating shafts (14) are rotatably connected inside the annular cover (13). The plurality of rotating shafts (14) are mutually transmission-connected. The bottom ends of the rotating shafts (14) are fixedly connected to a stirring impeller (19) after passing through the cover body (4). A submersible motor (18) is fixedly connected to the top of the annular cover (13). The output shaft of the submersible motor (18) is fixedly connected to the top end of one of the rotating shafts (14).

2. A bored pile sediment cleaning device according to claim 1, characterized in that: The outer wall of the rotating shaft (14) located in the annular cover (13) is fixedly sleeved with a first sprocket (15), and a plurality of the first sprockets (15) are connected by a chain (16). A plurality of auxiliary sprockets (17) are rotatably installed in the annular cover (13), and the auxiliary sprockets (17) are matched with the chain (16).

3. A bored pile sediment cleaning device according to claim 2, characterized in that: The top outer wall of the cover body (4) is provided with a plurality of water outlet holes (20), and the outer wall of the cover body (4) and the corresponding positions of the water outlet holes (20) are fixedly connected with filter screens (21).

4. A bored pile sediment cleaning device according to claim 3, characterized in that: The cover body (4) is connected to a guide frame (1) through a guide mechanism. The guide frame (1) is fixedly installed just above the opening of the pile hole (22) through a pile nail (2). A plurality of through holes (3) are provided through the top of the guide frame (1). The hose (6), the steel wire rope and the conductors of the submersible motor (18) pass through the corresponding through holes (3). The conductors of the submersible motor (18) pass through the through holes (3) to the pile hole (22) and are connected to the cable drum.

5. A bored pile sediment cleaning device according to claim 4, characterized in that: The guide mechanism comprises a guide tube (12) fixedly inserted on the guide frame (1), a guide rod (9) slidably inserted into the inner side of the guide tube (12), a screw rod (10) fixedly arranged at the bottom end of the guide rod (9), a connecting seat (8) fixedly connected to the top of the cover body (4) and the corresponding position of each guide tube (12), the connecting seat (8) and the top end of the guide rod (9) are both provided with threaded holes (11), and the threaded holes (11) are adapted to the screw rods (10).

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