Rotary excavating cast-in-place pile bottom scum control device

Abstract

The utility model provides a rotary excavating cast-in-place pile bottom scum control device which comprises a fixing frame, and the fixing frame is installed over a pile hole. The stirring structure is installed on the surface of the fixing frame, the material crushing blades are fixed to the side wall of the bottom end of the supporting pipe, and the through hole is formed in the side wall of the limiting pipe; the switching structure is mounted on the side wall of the top end of the supporting pipe; the guide pipe is connected with the connecting sleeve through the connector; the filtering structure is mounted on the side wall of the supporting pipe; the rotary excavating cast-in-place pile bottom scum control device has the advantages that the pile bottom scum can be conveniently cleaned, and the cast-in-place pile scum cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of slag removal technology for cast-in-place piles, and in particular to a device for controlling floating slag at the bottom of rotary cast-in-place piles. Background Technology

[0002] For bored pile construction, drilling rigs generally employ impact drilling, grab drilling, forward and reverse circulation rotary drilling, rotary drilling, etc.; mud wall protection is used for hole formation. Because mud wall protection is used, after drilling to the design depth and confirming that it meets the design requirements, the thick mud and drill cuttings deposited at the bottom of the borehole must be completely removed to ensure quality.

[0003] Currently, after drilling, the residue inside the hole of the cast-in-place pile needs to be cleaned out. Although various cleaning equipment can quickly remove the residue, some floating slag will remain at the bottom of the pile. Current equipment is difficult to clean the floating slag at the bottom of the pile, which will affect the efficiency of cleaning the cast-in-place pile during use.

[0004] Therefore, it is necessary to provide a new device for controlling scum at the bottom of rotary cast-in-place piles to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a rotary drilling cast-in-place pile bottom slag control device that facilitates the cleaning of pile bottom slag and improves the efficiency of slag removal in cast-in-place piles.

[0006] To solve the above-mentioned technical problems, the rotary drilling grout pile bottom slag control device provided by this utility model includes: a fixed frame, which is installed directly above the pile hole; a stirring structure, which is installed on the surface of the fixed frame, and includes a motor, a support pipe, a crushing blade, a through hole, and a limiting pipe. The motor is installed on the surface of the fixed frame, the limiting pipe is installed at the bottom end of the motor, the support pipe is fixed at the bottom end of the limiting pipe, the crushing blade is fixed to the side wall at the bottom end of the support pipe, and the through hole is located on the side wall of the limiting pipe; and a connecting structure, which is installed on the side wall at the top end of the support pipe, and includes a connecting sleeve, a connector, and a fixing element. The connecting sleeve is rotatably connected to the limiting pipe. The side wall of the sleeve, the connector is located on the side wall of one end of the sleeve, and the fixing member is fixed between the side wall of the other end of the sleeve and the bottom surface of the fixing frame; the conduit is connected to the sleeve through the connector; the filter structure is installed on the side wall of the support pipe, the filter structure includes a filter cover, a rubber sleeve, a collar, a connecting pipe, a spring and a bearing, the bearing is provided inside the collar, the bearing is fixed to the side wall of the support pipe, the collar is fixed at the center of the filter cover, the rubber sleeve is fixed to the edge of the filter cover, the spring is located inside the rubber sleeve, and the connecting pipe is located on the side wall of the filter cover; the pumping structure, one end of the pumping structure is connected to one end of the connecting pipe.

[0007] Preferably, the adapter structure further includes a through groove, which is disposed on the inner side wall of the sleeve and communicates with the connector.

[0008] Preferably, the limiting tube and the supporting tube are internally interconnected, the position of the through groove corresponds to the position of the through hole, the through groove is connected to the interior of the limiting tube through the through hole, and the bottom end of the supporting tube is in an open state.

[0009] Preferably, the filter cover is rotatably connected to the support tube via the collar, and the filter cover is semi-circular in shape.

[0010] Preferably, the rubber sleeve is formed in a circular shape, and the maximum diameter of the rubber sleeve is greater than the inner diameter of the pile hole, and the rubber sleeve is supported by the spring, and the rubber sleeve has contractility.

[0011] Preferably, the pumping structure includes a pumping pipe, a mud pump, and a mud tank. One end of the pumping pipe is connected to the connecting pipe, and the other end of the pumping pipe is connected to the mud pump. The mud tank is located on the foundation surrounding the bottom surface of the top of the pile hole.

[0012] Preferably, the pumping pipe is connected to the pile hole space at the bottom of the filter cover through the connecting pipe, and the mud pump is connected to the mud tank and the pile hole through the pumping pipe.

[0013] Compared with related technologies, the rotary drilling grout pile bottom slag control device provided by this utility model has the following beneficial effects:

[0014] This utility model provides a device for controlling scum at the bottom of rotary-drilled cast-in-place piles. First, one end of the pumping structure is connected to the filter structure. Then, the agitator, along with the filter structure mounted on the side wall, is inserted from the top of the pile hole. The filter structure is supported by its edges on the inner wall of the pile hole, ensuring a tight contact between the pile hole and the filter structure. Next, a fixing frame is installed on the foundation directly above the pile hole, fixing the position of the agitator so that its bottom end does not contact the bottom surface of the pile hole. Then, an external water source is connected through a conduit, with one end connected to a transition structure, allowing the external water source to enter the support pipe through the transition structure. The support pipe then discharges the external water source from the bottom of the pile hole, thus purifying the bottom of the pile hole. The flushing process raises the water level at the bottom of the pile hole, causing scum to rise to the surface. The filtration structure filters this rising scum. Simultaneously, the agitation structure and the pumping structure are connected to an external power source. First, the agitation structure, once connected, is powered by a motor that drives the support pipe to rotate, causing the shredder blades to agitate the scum and sediment at the bottom of the pile hole, while also cutting off larger impurities. Then, the pumping structure, once connected, uses a mud pump to extract the scum mixed with water below the filtration structure through the pumping pipe, storing it in the mud tank. This rapid cleaning of the scum at the bottom of the pile hole ensures the quality of the subsequent cast-in-place pile. This device has the advantage of facilitating the cleaning of scum at the bottom of the pile and improving the efficiency of scum removal in cast-in-place piles. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the rotary drilling grout pile bottom slag control device provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the overall structure of the filter.

[0017] Figure 3 for Figure 1 A schematic diagram of the cross-section of the transition structure shown;

[0018] Figure 4for Figure 3 The diagram shows the structure of the limiting tube connection.

[0019] Figure 5 for Figure 1 The enlarged structural diagram of part A is shown below;

[0020] Figure 6 for Figure 1 The enlarged structural diagram of part B is shown.

[0021] The following are the labels in the diagram: 1. Fixing frame, 2. Pile hole, 3. Agitating structure, 31. Motor, 32. Support pipe, 33. Crushing blade, 34. Through hole, 35. Limiting pipe, 4. Adapter structure, 41. Connecting sleeve, 42. Joint, 43. Fixing component, 44. Through groove, 5. Water injection structure, 51. Conduit, 6. Pumping structure, 61. Pumping pipe, 62. Mud pump, 63. Mud tank, 7. Filtration structure, 71. Filter cover, 72. Rubber sleeve, 73. Collar, 74. Connecting pipe, 75. Spring, 76. Bearing. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-6 ,in Figure 1 A schematic diagram of a preferred embodiment of the rotary drilling grout pile bottom slag control device provided by this utility model; Figure 2 for Figure 1 The diagram shows the overall structure of the filter. Figure 3 for Figure 1 A schematic diagram of the cross-section of the transition structure shown; Figure 4 for Figure 3 The diagram shows the structure of the limiting tube connection. Figure 5 for Figure 1 The enlarged structural diagram of part A is shown below; Figure 6 for Figure 1The enlarged structural schematic diagram of part B shows the rotary drilling pile bottom slag control device, which includes: a fixed frame 1, installed directly above the pile hole 2; an agitation structure 3, installed on the surface of the fixed frame 1, comprising a motor 31, a support pipe 32, a crushing blade 33, a through hole 34, and a limiting pipe 35; the motor 31 is installed on the surface of the fixed frame 1, the limiting pipe 35 is installed at the bottom end of the motor 31, the support pipe 32 is fixed to the bottom end of the limiting pipe 35, the crushing blade 33 is fixed to the side wall at the bottom end of the support pipe 32, and the through hole 34 is located on the side wall of the limiting pipe 35; and a transition structure 4, installed on the side wall at the top end of the support pipe 32, comprising a connecting sleeve 41, a connector 42, and a fixing element 43. The connecting sleeve 41 is rotatably connected to the side wall of the limiting pipe 35, and the connector 42 is fixed to the side wall of the limiting pipe 35. 42 is located on the side wall of one end of the connecting sleeve 41, and the fixing member 43 is fixed between the side wall of the other end of the connecting sleeve 41 and the bottom surface of the fixing frame 1; the conduit 51 is connected to the connecting sleeve 41 through the connector 42; the filter structure 7 is installed on the side wall of the support pipe 32, and the filter structure 7 includes a filter cover 71, a rubber sleeve 72, a collar 73, a connecting pipe 74, a spring 75, and a bearing 76. The bearing 76 is disposed inside the collar 73 and is fixed to the side wall of the support pipe 32. The collar 73 is fixed at the center of the filter cover 71, the rubber sleeve 72 is fixed to the edge of the filter cover 71, the spring 75 is disposed inside the rubber sleeve 72, and the connecting pipe 74 is disposed on the side wall of the filter cover 71; the pumping structure 6 is connected at one end to one end of the connecting pipe 74.

[0024] In the specific implementation process, such as Figure 1 , Figure 3 and Figure 4 As shown, the adapter structure 4 also includes a through groove 44, which is located on the inner side wall of the sleeve 41 and communicates with the connector 42. The limiting tube 35 and the support tube 32 are internally interconnected, and the position of the through groove 44 corresponds to the position of the through hole 34. The through groove 44 communicates with the inside of the limiting tube 35 through the through hole 34, and the bottom end of the support tube 32 is in an open state. This allows the sleeve 41 to connect to an external water source through the connector 42 and the conduit 51. The external water is then introduced into the limiting tube 35 through the through hole 34 via the through groove 44 and discharged from the bottom end of the pile hole 2 through the support tube 32, thus rinsing the scum at the bottom end of the pile hole 2.

[0025] In the specific implementation process, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the filter cover 71 is rotatably connected to the support tube 32 via the collar 73, and the filter cover 71 is semi-circular in shape; the rubber sleeve 72 is formed in a ring shape, and the maximum diameter of the rubber sleeve 72 is larger than the inner diameter of the pile hole 2, and the rubber sleeve 72 is supported by the spring 75, and the rubber sleeve 72 is contractile, so that the filter cover 71 is supported on the inner wall of the pile hole 2 via the rubber sleeve 72, so that the filter cover 71 filters the floating scum inside the pile hole 2.

[0026] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the pumping structure 6 includes a pumping pipe 61, a mud pump 62, and a mud tank 63. One end of the pumping pipe 61 is connected to the connecting pipe 74, and the other end of the pumping pipe 61 is connected to the mud pump 62. The mud tank 63 is located on the foundation surrounding the bottom surface of the top of the pile hole 2. The pumping pipe 61 is spatially connected to the pile hole 2 at the bottom of the filter cover 71 through the connecting pipe 74, and the mud pump 62 is connected to the mud tank 63 and the pile hole 2 through the pumping pipe 61. This facilitates the mud pump 62 to extract the scum at the bottom of the filter cover 71 through the pumping pipe 61 and discharge it into the mud tank 63.

[0027] The working principle of the rotary drilling grout pile bottom slag control device provided by this utility model is as follows:

[0028] First, install the fixing frame 1 on the foundation directly above the pile hole 2, and install the motor 31 on the fixing frame 1. Then, connect one end of the pumping pipe 61 to the connecting pipe 74, and insert the support pipe 32 from the top of the pile hole 2. At the same time, the support pipe 32 will also drive the filter cover 71 to enter the interior of the pile hole 2. The filter cover 71 will be supported by the baffle on the inner wall of the pile hole 2, and the rubber sleeve 72 will be supported by the spring 75. The sidewall of 72 is in close contact with the inner sidewall of the pile hole 2, and slides down the inner sidewall of the pile hole 2 as the support pipe 32 is deepened, thereby allowing the filter cover 71 to filter the scum inside the upper end of the pile hole 2, so that the bottom end of the support pipe 32 does not contact the bottom surface inside the pile hole 2. Then, the connecting sleeve 41 is connected to the conduit 51 through the connector 42, so that the conduit 51 is connected to an external water source. The external water source enters the interior of the limiting pipe 35 through the connecting sleeve 41 and the through hole 34, and then flows through the... The water from the support pipe 32 flows into the bottom of the pile hole 2. Then, the motor 31 is connected to an external power source, driving the support pipe 32 to rotate. With the fixing member 43 in place, the connecting sleeve 41 will not rotate with the limiting pipe 35. The support pipe 32 then drives the crushing blade 33, fixed to the bottom side wall, to rotate, agitating and cutting the scum and sediment at the bottom of the pile hole 2. Water injected through the support pipe 32 can flush the bottom of the pile hole 2. Under the flushing of the source and the agitation of the crushing blades 33, the water at the bottom of the pile hole 2 will surge upwards, and the filter cover 71 will filter the floating scum. Then, the mud pump 62 is connected to an external power source, so that the mud pump 62 can pump the surging scum and water through the water pumping pipe 61 and inject them into the mud pool 63, thereby cleaning the scum at the bottom of the pile hole 2 and ensuring the quality of the subsequent cast-in-place pile. This device has the advantages of facilitating the cleaning of scum at the bottom of the pile and improving the efficiency of scum removal in cast-in-place piles.

[0029] Compared with related technologies, the rotary drilling grout pile bottom slag control device provided by this utility model has the following beneficial effects:

[0030] This utility model provides a device for controlling scum at the bottom of rotary-drilled cast-in-place piles. First, one end of the pumping structure 6 is connected to the filter structure 7. Then, the agitating structure 3, along with the filter structure 7 installed on the side wall, is inserted from the top of the pile hole 2. The filter structure 7 is supported by its edges on the inner side wall of the pile hole 2, ensuring a tight contact between the pile hole 2 and the filter structure 7. Next, a fixing frame 1 is installed on the foundation directly above the pile hole 2, and the position of the agitating structure 3 is fixed by the fixing frame 1, ensuring that the bottom end of the agitating structure 3 does not contact the bottom surface inside the pile hole 2. Then, an external water source is connected through the conduit 51, and one end of the conduit 51 is connected to the transition structure 4, allowing the external water source to enter the interior of the support pipe 32 through the transition structure 4. The support pipe 32 then discharges the external water source from the bottom of the pile hole 2, ensuring a tight contact between the bottom of the pile hole 2 and the filter structure 7. The process involves rinsing the bottom of the pile hole 2 to raise the water level, causing the scum at the bottom of the pile hole 2 to rise. The filter structure 7 filters the rising scum. Simultaneously, the agitation structure 3 and the pumping structure 6 are connected to an external power source. First, after the agitation structure 3 is connected to the power source, the motor 31 drives the support pipe 32 to rotate, thereby driving the crushing blades 33 to agitate the bottom of the pile hole 2, stirring up the scum and sediment at the bottom of the pile hole 2, and also cutting off excessively large impurities. After the pumping structure 6 is connected to the power source, the mud pump 62, through the pumping pipe 61, extracts the scum mixed with water below the filter structure 7 and pumps it into the mud tank 63 for storage. This allows for the rapid cleaning of the scum at the bottom of the pile hole 2, thus ensuring the quality of the subsequent cast-in-place pile. This device has the advantages of facilitating the cleaning of scum at the bottom of the pile and improving the efficiency of scum removal in cast-in-place piles.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for controlling the float of a pile bottom in a rotary bored pile, characterized in that, Include; The fixed frame (1) is installed above the pile hole (2); The stirring structure (3) is installed on the surface of the fixed frame (1), the stirring structure (3) includes motor (31), support tube (32), broken material blade (33), through hole (34) and limit tube (35), the motor (31) is installed on the surface of the fixed frame (1), the limit tube (35) is installed at the bottom end of the motor (31), the support tube (32) is fixed to the bottom end of the limit tube (35), the broken material blade (33) is fixed to the side wall of the bottom end of the support tube (32), the through hole (34) is arranged on the side wall of the limit tube (35); The adapter structure (4) is installed on the side wall of the top end of the support tube (32), the adapter structure (4) includes socket (41), joint (42) and fixing piece (43), the socket (41) is rotatably connected to the side wall of the limit tube (35), the joint (42) is arranged on the side wall of one end of the socket (41), and the fixing piece (43) is fixed between the side wall of the other end of the socket (41) and the bottom surface of the fixed frame (1); The catheter (51) is connected with the socket (41) through the joint (42); The filter structure (7) is installed on the side wall of the support tube (32), the filter structure (7) includes filter cover (71), rubber sleeve (72), sleeve ring (73), connecting pipe (74), spring (75) and bearing (76), the inside of the sleeve ring (73) is provided with the bearing (76), the bearing (76) is fixed to the side wall of the support tube (32), the sleeve ring (73) is fixed to the middle of the filter cover (71), the rubber sleeve (72) is fixed to the edge of the filter cover (71), the spring (75) is arranged in the inside of the rubber sleeve (72), and the connecting pipe (74) is arranged on the side wall of the filter cover (71); The water pumping structure (6) is connected to one end of the connecting pipe (74).

2. The cast-in-place pile bottom scum control device according to claim 1, characterized by, The adapter structure (4) further includes a through groove (44), which is arranged on the inner side wall of the socket (41), and the through groove (44) is in communication with the joint (42).

3. The device for controlling the float of the bottom of the cast-in-place rotary pile according to claim 2, characterized in that, The limit tube (35) and the inside of the support tube (32) are in communication with each other, the position of the through groove (44) corresponds to the position of the through hole (34), the through groove (44) is in communication with the inside of the limit tube (35) through the through hole (34), and the bottom end of the support tube (32) is in an open state.

4. The cast-in-place pile bottom scum control device according to claim 1, characterized by, The filter cover (71) is rotatably connected between the sleeve ring (73) and the support tube (32), and the shape of the filter cover (71) is semicircular.

5. The cast-in-place pile bottom scum control device according to claim 1, characterized by, The rubber sleeve (72) is formed in a circular ring shape, the maximum diameter of the rubber sleeve (72) is greater than the inner diameter of the pile hole (2), the rubber sleeve (72) is supported by the spring (75), and the rubber sleeve (72) has shrinkability.

6. The cast-in-place pile bottom scum control device according to claim 1, characterized by, The water pumping structure (6) comprises a water pumping pipe (61), a mud pump (62) and a mud pool (63), one end of the water pumping pipe (61) is connected with the connecting pipe (74), the other end of the water pumping pipe (61) is connected with the mud pump (62), and the mud pool (63) is arranged on the ground at the outer periphery of the bottom surface of the top end of the pile hole (2).

7. The cast-in-place pile bottom scum control device according to claim 6, characterized by, The water pumping pipe (61) is in space communication with the pile hole (2) at the bottom end of the filter cover (71) through the connecting pipe (74), and the mud pump (62) is connected with the mud pool (63) and the pile hole (2) through the water pumping pipe (61).

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