Grouting device for cast-in-situ bored pile construction

Abstract

The invention relates to the technical field of cast-in-place pile construction, and particularly discloses a grouting device for cast-in-place bored pile construction. Supporting seats are fixedly connected to the top surface of the vehicle body; a grouting pipe is vertically mounted on the outer wall of the supporting seat in a sliding manner; an annular plate is coaxially and fixedly connected to the outer wall of the bottom end of the grouting pipe. A first stirring shaft is vertically and rotatably connected to the annular plate; a first stirring plate is fixedly connected to the outer wall of the bottom end of the first stirring shaft; a power mechanism capable of driving the first stirring shaft to rotate is arranged on the outer wall of the grouting pipe; a conveying mechanism for conveying slurry is arranged on the top surface of the vehicle body; in the grouting process, the power mechanism drives the first stirring shaft to rotate, the first stirring plate is promoted to stir slurry injected into a pile hole, bubbles in the slurry are promoted to be broken, and the grouting quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cast-in-place pile construction, and more particularly to a grouting device for bored cast-in-place pile construction. Background Art

[0002] A concrete cast-in-place pile is a pile formed by forming a hole in place and pouring concrete in the hole or lowering a steel reinforcement cage and then pouring concrete. The diameter of the hole formed in place can be selected as needed to make concrete cast-in-place piles with different pile diameters. The construction process of bored cast-in-place piles generally includes: drilling and forming a hole, cleaning the hole, lowering the steel reinforcement cage, and pouring concrete slurry. The quality of the poured concrete slurry has a great influence on the bearing capacity of the concrete cast-in-place pile.

[0003] In the prior art, when constructing cast-in-place piles, the concrete slurry is generally directly poured into the pile hole through a grouting pipe. A large number of bubbles are easily generated in the concrete slurry poured into the pile hole, which in turn reduces the density of the concrete cast-in-place pile and affects its bearing capacity and service life. Summary of the Invention

[0004] This application provides a grouting device for bored cast-in-place pile construction, which has the function of stirring the slurry injected into the pile hole, promoting the breaking of bubbles in the slurry, ensuring the uniformity of the slurry, and ensuring the grouting quality.

[0005] A grouting device for bored cast-in-place pile construction provided by this application adopts the following technical solutions: A grouting device for bored cast-in-place pile construction includes a vehicle body; a support seat is fixedly connected to the top surface of the vehicle body; a grouting pipe is vertically slidably installed on the outer wall of the support seat; an annular plate is coaxially fixedly connected to the outer wall of the bottom end of the grouting pipe; a first stirring shaft is vertically rotatably connected to the annular plate; a first stirring plate is fixedly connected to the outer wall of the bottom end of the first stirring shaft; a power mechanism for driving the first stirring shaft to rotate is arranged on the outer wall of the grouting pipe; and a feeding mechanism for conveying the slurry into the grouting pipe is arranged on the top surface of the vehicle body.

[0006] By adopting the above technical solutions, when grouting the pile hole, the vehicle body is moved to the position of the pile hole, the grouting pipe is vertically lowered into the pile hole, the slurry is conveyed into the grouting pipe through the feeding mechanism to realize the grouting work of the pile hole, and during the grouting process, the power mechanism arranged on the outer wall of the grouting pipe drives the first stirring shaft to rotate, so as to promote the first stirring plate to stir the slurry injected into the pile hole, ensure the uniformity of the slurry, promote the breaking of bubbles in the slurry, and improve the grouting quality.

[0007] Preferably, the power mechanism includes a first gear ring, a second gear ring and a driving member; the first gear ring is coaxially and fixedly connected to the top surface of the annular plate; the second gear ring is coaxially and rotatably connected to the outer peripheral surface of the annular plate; the first stirring shaft is vertically and rotatably connected to the second gear ring, and a first spur gear meshing with the first gear ring is coaxially fixedly connected to the top end of the first stirring shaft; the driving member is arranged on the outer wall of the grouting pipe, and the driving member can drive the second gear ring to rotate.

[0008] By adopting the above technical solution, during the grouting process, the driving member drives the second gear ring and the first stirring shaft arranged thereon to rotate. Under the meshing cooperation of the first spur gear and the first gear ring, the first stirring shaft will rotate self - sufficiently while the second gear ring drives the first stirring shaft to move, prompting the first stirring plate to rotate, so as to realize the stirring work of the slurry.

[0009] Preferably, the driving member includes a first motor and a second spur gear; the first motor is installed on the outer wall of the grouting pipe, and a first rotating shaft is coaxially fixedly connected to the output end of the first motor; the second spur gear is coaxially fixedly connected to the outer wall of the rotating shaft, and the second spur gear meshes with the second gear ring.

[0010] By adopting the above technical solution, starting the first motor can drive the first rotating shaft and the second spur gear to rotate. Under the meshing cooperation of the second spur gear and the second gear ring, the first motor can drive the second gear ring to rotate.

[0011] Preferably, a rotating shaft is horizontally and rotatably connected to the outer wall of the grouting pipe near the first rotating shaft; an impact block contacting the outer wall of the grouting pipe is fixedly connected to the top outer wall of the rotating shaft through a first connecting plate, and a hemispherical block is fixedly connected to the bottom outer wall of the rotating shaft through a second connecting plate; a spring is connected between the side wall of the second connecting plate close to the grouting pipe and the outer wall of the grouting pipe; an extrusion member for extruding the hemispherical block to cause the second connecting plate to compress the spring is arranged on the outer wall of the first rotating shaft.

[0012] By adopting the above technical solution, the first rotating shaft will drive the extrusion member to move during rotation. When the extrusion member extrudes the hemispherical block during movement, the hemispherical block will swing downward, causing the second connecting plate to compress the spring, and the first connecting plate and the impact block will swing upward away from the outer wall of the grouting pipe. When the extrusion member loses contact with the hemispherical block, the second connecting plate drives the hemispherical block to swing back under the action of the spring force, and the first connecting plate drives the impact block to swing back and impact the outer wall of the grouting pipe. By repeatedly extruding the hemispherical block with the extrusion member, the impact block can repeatedly impact the outer wall of the grouting pipe, causing the grouting pipe to vibrate and reducing the possibility of blockage due to the adhesion of the slurry to the inner wall of the grouting pipe.

[0013] Preferably, the extrusion member includes a connecting rod and an extrusion ball; the connecting rod is horizontally and fixedly connected to the outer wall of the first rotating shaft near the hemispherical block; the extrusion ball is fixedly connected to the end of the connecting rod away from the first rotating shaft; the top end of the hemispherical block is in an arc shape that can contact and cooperate with the extrusion ball.

[0014] By adopting the above technical solution, during the rotation of the first rotating shaft, the connecting rod drives the extrusion ball to move. When the extrusion ball moves to contact the hemispherical block, through the cooperation with the arc surface at the top of the hemispherical block, the extrusion ball will cause the hemispherical block to swing downward. When the extrusion ball loses contact with the hemispherical block, the hemispherical block will swing back to its original position under the action of the spring elastic force, so as to realize the reciprocating extrusion of the hemispherical block by the extrusion ball during the movement process.

[0015] Preferably, the feeding mechanism includes a storage tank and a pump body; the storage tank is installed on the top surface of the vehicle body; the pump body is installed on the top surface of the vehicle body, and the input end of the pump body is fixedly connected with a feed pipe communicating with the inside of the storage tank, and the output end of the pump body is fixedly connected with a discharge pipe communicating with the grouting pipe.

[0016] By adopting the above technical solution, the storage tank can be used to store the slurry. During the grouting operation, the pump body is started to pump out the slurry in the storage tank, so that the slurry is conveyed from the feed pipe and the discharge pipe to the grouting pipe, thereby conveniently realizing the grouting operation of the pile hole.

[0017] Preferably, a second motor is installed on the top surface of the storage tank; the output end of the second motor is coaxially fixedly connected with a second stirring shaft extending into the storage tank; and second stirring plates are fixedly connected to the outer wall of the second stirring shaft.

[0018] By adopting the above technical solution, when the slurry is stored in the storage tank, the second motor is started to drive the second stirring shaft to rotate, so that the second stirring plates stir the slurry, promoting the movement of the slurry in the storage tank and reducing the possibility of the slurry solidifying and caking.

[0019] Preferably, a vertically oriented chute is provided on the side wall of the support seat close to the grouting pipe, and a third motor is installed on the top surface of the support seat; the output end of the third motor is coaxially fixedly connected with a lead screw extending vertically into the chute; a slide plate that is in threaded transmission cooperation with the lead screw is sleeved on the outer wall of the lead screw; the slide plate is slidably engaged with the inner wall of the chute; and the grouting pipe is vertically fixedly connected to the outer wall of the slide plate.

[0020] By adopting the above technical solution, during the grouting process, the third motor can be started to drive the lead screw to rotate, so that the slide plate drives the grouting pipe to move vertically in the pile hole, so that the first stirring plate on the outer wall of the grouting pipe can stir the newly injected slurry.

[0021] Preferably, a ring body surrounding the outside of the grouting pipe is fixedly connected to the outer wall of the vehicle body close to the grouting pipe; a group of electric push rods are horizontally installed on the inner peripheral surface of the ring body; the group of electric push rods are evenly spaced along the inner peripheral surface of the ring body, and a limiting ball that can contact the outer wall of the grouting pipe is rotatably provided at the output end of each electric push rod.

[0022] By adopting the above technical solution, when grouting into the pile hole, the electric push rod is started to drive the limiting ball to contact the outer wall of the grouting pipe. Through the cooperative work of multiple limiting balls arranged in the annular body, the circumferential limitation of the grouting pipe is carried out, which helps to reduce the shaking of the grouting pipe in the pile hole and improve the stability of grouting of the grouting pipe.

[0023] Preferably, a support plate is fixedly connected to the outer wall of the vehicle body leg; a threaded rod is vertically penetrated through the support plate; the threaded rod is threadedly connected to the support plate, and a pointed rod is coaxially fixedly connected to the bottom end of the threaded rod.

[0024] By adopting the above technical solution, when grouting the pile hole, the pointed rod can be driven to move downward by rotating the threaded rod, so that the pointed rod is inserted into the ground, reducing the possibility of the vehicle body slipping during the grouting process and improving the stability of the vehicle body during the grouting process.

[0025] In summary, the present application has the following beneficial effects: 1. When grouting, the first motor is started to drive the first rotating shaft and the second straight gear to rotate. Under the meshing cooperation of the second straight gear and the second toothed ring, the second toothed ring drives the first stirring shaft arranged thereon to move around the outer circumference of the grouting pipe. Under the meshing cooperation of the first straight gear and the first toothed ring, while the first stirring shaft moves around the outer circumference of the grouting pipe, it will rotate self - sufficiently, prompting the first stirring plate to rotate, stirring the slurry in the pile hole, breaking the air bubbles in the slurry, ensuring the uniformity of the slurry, and helping to increase the density of the cast - in - place pile; 2. When the extrusion ball is driven by the first rotating shaft to contact the hemispherical block, the extrusion ball will squeeze the hemispherical block to swing downward, the second connecting plate compresses the spring, and the first connecting plate will drive the impact block to swing upward away from the grouting pipe. When the extrusion ball loses contact with the hemispherical block, the second connecting plate drives the hemispherical block to swing back under the action of the spring elastic force, and the first connecting plate drives the impact block to swing back and impact the outer wall of the grouting pipe, prompting the grouting pipe to vibrate and reducing the possibility of blockage at the outlet of the grouting pipe; 3. When grouting, the electric push rod is started to drive the limiting ball to contact the outer wall of the grouting pipe. Through the cooperative work of multiple limiting balls arranged in the annular body, the circumferential limitation of the grouting pipe is carried out, which helps to reduce the shaking of the grouting pipe in the pile hole and improve the stability of grouting of the grouting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a grouting device for bored cast - in - place pile construction; Figure 2 is a cooperative structural schematic diagram of the support seat and the grouting pipe in the present application; Figure 3 is a schematic diagram of the internal structure of the storage tank in the present application; Figure 4 is a cooperative structural schematic diagram of the annular body and a group of electric push rods in the present application; Figure 5 It is a schematic diagram of the cooperation structure of the grouting pipe, the ring plate and the power mechanism in this application; Figure 6 It is a schematic diagram of the cooperation structure of the grouting pipe, the impact block and the extrusion member in this application; Figure 7 It is a schematic diagram of the cooperation structure of the support plate and the threaded rod in this application.

[0027] Explanation of reference numerals: 1, vehicle body; 11, ring body; 12, electric push rod; 13, limit ball; 14, support plate; 15, threaded rod; 16, pointed rod; 2, support seat; 21, chute; 22, third motor; 23, lead screw; 24, sliding plate; 3, grouting pipe; 31, rotating shaft; 32, first connecting plate; 33, impact block; 34, second connecting plate; 35, hemispherical block; 36, spring; 37, extrusion member; 371, connecting rod; 372, extrusion ball; 4, ring plate; 41, first stirring shaft; 42, first stirring plate; 5, power mechanism; 51, first gear ring; 52, second gear ring; 53, driving member; 531, first motor; 532, second spur gear; 533, first rotating shaft; 54, first spur gear; 6, feeding mechanism; 61, storage tank; 62, pump body; 621, feed pipe; 622, discharge pipe; 63, second motor; 631, second stirring shaft; 632, second stirring plate. Detailed implementation manners

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0029] The present invention discloses a grouting device for bored cast-in-place pile construction, as Figure 1 and Figure 2 shown, which includes a vehicle body 1, a support seat 2, a grouting pipe 3 and a feeding mechanism 6. The support seat 2 is vertically and fixedly connected to the top surface of the vehicle body 1. A vertically extending chute 21 is provided on the outer wall of the support seat 2. A third motor 22 is installed on the top surface of the support seat 2. The third motor 22 is a brake motor. The output end of the third motor 22 is coaxially and fixedly connected with a lead screw 23 that vertically extends into the chute 21. A sliding plate 24 that is in threaded transmission cooperation with the lead screw 23 is horizontally sleeved on the outer wall of the lead screw 23. The sliding plate 24 is slidably engaged with the inner wall of the chute 21. The end of the sliding plate 24 away from the support seat 2 extends outside the support seat 2. The grouting pipe 3 is vertically and fixedly connected to the sliding plate 24. The grouting pipe 3 is located outside the vehicle body 1. The feeding mechanism 6 is arranged on the top surface of the vehicle body 1, and the feeding mechanism 6 can convey slurry into the grouting pipe 3.

[0030] Move the vehicle body 1 to the designated position so that the grouting pipe 3 is aligned with the pile hole. Start the third motor 22 to drive the screw rod 23 to rotate, prompting the slide plate 24 to move downward and extend the grouting pipe 3 into the pile hole. When performing the pile hole grouting operation, the material conveying mechanism 6 conveys the slurry into the grouting pipe 3, and drives the screw rod 23 to reverse by the third motor 22, prompting the slide plate 24 to drive the grouting pipe 3 to gradually move upward in the vertical direction to realize the pile hole grouting operation.

[0031] As Figure 1 and Figure 3 shown, the material conveying mechanism 6 includes a storage tank 61, a pump body 62 and a second motor 63. The storage tank 61 is vertically fixed on the top surface of the vehicle body 1. The storage tank 61 can store the slurry, and a feed inlet is arranged on the top surface of the storage tank 61; The pump body 62 is installed on the top surface of the vehicle body 1. The input end of the pump body 62 is fixedly connected with a feed pipe 621. The end of the feed pipe 621 far from the pump body 62 is fixedly connected to the side wall of the storage tank 61 and communicated with the storage tank 61. The output end of the pump body 62 is fixedly connected with a discharge pipe 622. The end of the discharge pipe 622 far from the pump body 62 is fixedly connected to the top surface of the grouting pipe 3 and communicated with the grouting pipe 3; The second motor 63 is installed on the top surface of the storage tank 61. The output end of the second motor 63 is coaxially fixedly connected with a second stirring shaft 631 extending into the storage tank 61. A plurality of second stirring plates 632 are horizontally fixedly connected to the outer wall of the second stirring shaft 631.

[0032] When conveying the slurry, start the pump body 62 to pump out the slurry stored in the storage tank 61. The slurry is conveyed into the grouting pipe 3 through the feed pipe 621 and the discharge pipe 622 for the pile hole grouting operation. When the storage tank 61 stores the slurry, start the second motor 63 to drive the second stirring shaft 631 to rotate, so that the second stirring plates 632 stir the slurry, prompting the slurry to move and reducing the possibility of the slurry solidifying and caking.

[0033] As Figure 1 and Figure 4 shown, a ring body 11 surrounding the outside of the grouting pipe 3 is fixedly connected to the outer wall of the vehicle body 1 close to the grouting pipe 3. The ring body 11 is coaxially arranged with the grouting pipe 3. Four electric push rods 12 are horizontally arranged on the inner peripheral surface of the ring body 11. The four electric push rods 12 are evenly spaced along the inner peripheral surface of the ring body 11. The telescopic direction of the electric push rod 12 is arranged along the radial direction of the ring body 11. The output end of each electric push rod 12 is rotatably connected through a concave plate with a limiting ball 13 that can contact the outer wall of the grouting pipe 3.

[0034] When performing the grouting operation through the grouting pipe 3, start the electric push rod 12 to drive the limiting ball 13 to contact the outer wall of the grouting pipe 3. Through the coordinated work of a plurality of limiting balls 13 arranged around the grouting pipe 3, circumferential limitation of the grouting pipe 3 is carried out, reducing the shaking of the grouting pipe 3 in the pile hole during the grouting process and improving the stability of the grouting operation.

[0035] As Figure 1 and Figure 5 shown, a ring plate 4 is coaxially and fixedly connected to the outer wall of the grouting pipe 3 near the bottom end. Four first stirring shafts 41 are vertically rotatably arranged on the ring plate 4. The four first stirring shafts 41 are evenly spaced along the outer circumference of the ring plate 4. A plurality of first stirring plates 42 are horizontally and fixedly connected to the outer wall of the bottom end of each first stirring shaft 41. A power mechanism 5 for driving the plurality of first stirring shafts 41 to rotate is arranged on the outer wall of the grouting pipe 3.

[0036] During the grouting process, the four first stirring shafts 41 are driven to rotate by the power mechanism 5 arranged on the outer wall of the grouting pipe 3, so as to prompt the first stirring plates 42 to stir the slurry injected into the pile hole, ensure the uniformity of the slurry, break the air bubbles in the slurry, and improve the grouting quality.

[0037] As Figure 1 and Figure 5 shown, the power mechanism 5 includes a first gear ring 51, a second gear ring 52 and a driving member 53. The first gear ring 51 is coaxially and fixedly connected to the top surface of the ring plate 4. The second gear ring 52 is coaxially and rotatably connected to the outer peripheral surface of the ring plate 4. The four first stirring shafts 41 are vertically rotatably connected to the second gear ring 52. The four first stirring shafts 41 are evenly spaced along the circumference of the second gear ring 52. A first spur gear 54 meshing with the first gear ring 51 is coaxially and fixedly connected to the top end of each first stirring shaft 41; The driving member 53 is arranged on the outer wall of the grouting pipe 3. The driving member 53 includes a first motor 531 and a second spur gear 532. The first motor 531 is vertically installed on the outer wall of the grouting pipe 3 through a straight plate. A first rotating shaft 533 is coaxially and fixedly connected to the output end of the first motor 531. The second spur gear 532 is coaxially and fixedly connected to the outer wall of the end of the first rotating shaft 533 away from the first motor 531. The second spur gear 532 meshes with the second gear ring 52.

[0038] During the grouting process, the first motor 531 is started to drive the first rotating shaft 533 and the second spur gear 532 to rotate. Under the meshing cooperation of the second spur gear 532 and the second gear ring 52, the second gear ring 52 drives the first stirring shafts 41 arranged thereon to move around the outer circumference of the grouting pipe 3. Under the meshing cooperation of the first spur gear 54 and the first gear ring 51, while the first stirring shafts 41 move around the outer circumference of the grouting pipe 3, they will rotate self - rotatably, so as to prompt the first stirring plates 42 to rotate and stir the slurry in the pile hole.

[0039] As Figure 5 and Figure 6As shown in the figure, a rotating shaft 31 is horizontally rotatably connected to the outer wall of the grouting pipe 3 near the first rotating shaft 533. The top outer wall of the rotating shaft 31 is fixedly connected with an impact block 33 that contacts the outer wall of the grouting pipe 3 through a first connecting plate 32. The bottom outer wall of the rotating shaft 31 is fixedly connected with a hemispherical block 35 through a second connecting plate 34. The hemispherical block 35 is horizontally arranged with a hemispherical arc facing upwards. The side wall of the second connecting plate 34 away from the first rotating shaft 533 is connected to the outer wall of the grouting pipe 3 through a spring 36. A set of pressing members 37 for reciprocally pressing the hemispherical block 35 are arranged on the outer wall of the first rotating shaft 533. The pressing members 37 can cause the second connecting plate 34 to swing and compress the spring 36; The pressing member 37 includes a connecting rod 371 and a pressing ball 372. The connecting rod 371 is horizontally fixedly connected to the outer wall of the first rotating shaft 533 near the hemispherical block 35. The pressing ball 372 is fixedly connected to the end of the connecting rod 371 away from the first rotating shaft 533. The pressing ball 372 can contact and cooperate with the top arc surface of the hemispherical block 35 to cause the hemispherical block 35 to move downward and swing.

[0040] When the pressing ball 372 moves to contact the hemispherical block 35, the pressing ball 372 will press the hemispherical block 35 to swing downward. The second connecting plate 34 compresses the spring 36, and the first connecting plate 32 will drive the impact block 33 to swing upward and away from the grouting pipe 3. When the pressing ball 372 loses contact with the hemispherical block 35, the second connecting plate 34 drives the hemispherical block 35 to swing back under the elastic force of the spring 36, and the first connecting plate 32 drives the impact block 33 to swing back and impact the outer wall of the grouting pipe 3. During the process of the pressing ball 372 reciprocally pressing the hemispherical block 35, the impact block 33 will reciprocally impact the outer wall of the grouting pipe 3, causing the grouting pipe 3 to vibrate and reducing the possibility of blockage at the outlet of the grouting pipe 3.

[0041] As Figure 1 and Figure 7 shown in the figure, a support plate 14 is horizontally fixedly connected to the outer wall of the leg of the vehicle body 1. A threaded rod 15 penetrating the support plate 14 is vertically arranged on the support plate 14. The threaded rod 15 is threadedly connected to the support plate 14. The bottom end of the threaded rod 15 is coaxially fixedly connected with a pointed rod 16 located at the bottom of the support plate 14.

[0042] Rotating the threaded rod 15 can drive the pointed rod 16 to move downward and insert into the ground, reducing the possibility of the vehicle body 1 slipping during grouting, and thus improving the stability of the vehicle body 1 during grouting.

[0043] Working principle: Move the vehicle body 1 to the pile hole so that the grouting pipe 3 is aligned with the pile hole. Start the third motor 22 to drive the lead screw 23 to rotate, so that the slide plate 24 drives the grouting pipe 3 to move downward and extend into the pile hole. When performing pile hole grouting work, start the pump body 62 to pump out the slurry in the storage tank 61 and transport it to the grouting pipe 3 through the feed pipe 621 and the discharge pipe 622. During the grouting process, drive the lead screw 23 to reverse by the third motor 22, so that the slide plate 24 drives the grouting pipe 3 to continuously move upward in the vertical direction, thereby realizing the pile hole grouting work; During the grouting process, the first motor 531 is started to drive the first rotating shaft 533 and the second spur gear 532 to rotate. Under the meshing cooperation of the second spur gear 532 and the second gear ring 52, the second gear ring 52 drives the first stirring shaft 41 provided thereon to move around the outer periphery of the grouting pipe 3. Under the meshing cooperation of the first spur gear 54 and the first gear ring 51, while the first stirring shaft 41 moves around the outer periphery of the grouting pipe 3, it will rotate self - sufficiently, prompting the first stirring plate 42 to rotate, stirring the slurry in the pile hole, ensuring the uniformity of the slurry, prompting the bubbles in the slurry to break, and improving the grouting quality; During the rotation of the first rotating shaft 533, the extrusion ball 372 will be driven to move by the connecting rod 371. When the extrusion ball 372 moves to contact the hemispherical block 35, the extrusion ball 372 will extrude the hemispherical block 35 to swing downward, prompting the second connecting plate 34 to compress the spring 36. At this time, the first connecting plate 32 will drive the impact block 33 to swing upward away from the grouting pipe 3. When the extrusion ball 372 loses contact with the hemispherical block 35, the second connecting plate 34 drives the hemispherical block 35 to swing back under the elastic force of the spring 36, and the first connecting plate 32 drives the impact block 33 to swing back and impact the outer wall of the grouting pipe 3. Thus, during the process of the extrusion ball 372 reciprocally extruding the hemispherical block 35, the impact block 33 reciprocally impacts the outer wall of the grouting pipe 3, prompting the grouting pipe 3 to vibrate, reducing the possibility of blockage caused by the adhesion of the slurry on the inner wall of the grouting pipe 3.

[0044] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A grouting device for bored pile construction, characterized in that: The invention comprises a vehicle body (1); a support seat (2) is fixedly connected to the top surface of the vehicle body (1); a grouting pipe (3) is vertically slidably mounted on the outer wall of the support seat (2); a ring plate (4) is coaxially fixedly connected to the outer wall of the bottom end of the grouting pipe (3); a first stirring shaft (41) is vertically rotatably connected to the ring plate (4); a first stirring plate (42) is fixedly connected to the outer wall of the bottom end of the first stirring shaft (41); a power mechanism (5) is arranged on the outer wall of the grouting pipe (3) for driving the first stirring shaft (41) to rotate; and a material conveying mechanism (6) is arranged on the top surface of the vehicle body (1) for conveying slurry into the grouting pipe (3).

2. A grouting device for bored pile construction according to claim 1, characterized in that: The power mechanism (5) comprises a first gear ring (51), a second gear ring (52) and a driving member (53); the first gear ring (51) is coaxially fixed on the top surface of the ring plate (4); the second gear ring (52) is coaxially rotatably connected to the outer peripheral surface of the ring plate (4); the first stirring shaft (41) is vertically rotatably connected to the second gear ring (52), and the top end of the first stirring shaft (41) is coaxially fixed with a first spur gear (54) meshing with the first gear ring (51); the driving member (53) is arranged on the outer wall of the grouting pipe (3), and the driving member (53) can drive the second gear ring (52) to rotate.

3. A grouting device for bored pile construction according to claim 2, characterized in that: The driving member (53) comprises a first motor (531) and a second spur gear (532); the first motor (531) is mounted on the outer wall of the grouting pipe (3), and the output end of the first motor (531) is coaxially fixedly connected with a first rotating shaft (533); the second spur gear (532) is coaxially fixedly connected to the outer wall of the rotating shaft (31), and the second spur gear (532) is meshed with the second gear ring (52).

4. A grouting device for bored pile construction according to claim 3, characterized in that: A rotating shaft (31) is horizontally rotatably connected to the outer wall of the grouting pipe (3) near the first rotating shaft (533); a collision block (33) in contact with the outer wall of the grouting pipe (3) is fixedly connected to the outer wall of the top end of the rotating shaft (31) via a first connecting plate (32); a hemispherical block (35) is fixedly connected to the outer wall of the bottom end of the rotating shaft (31) via a second connecting plate (34); the side wall of the second connecting plate (34) near the grouting pipe (3) is connected to the outer wall of the grouting pipe (3) via a spring (36); and an extrusion piece (37) is provided on the outer wall of the first rotating shaft (533) for extruding the hemispherical block (35) to cause the second connecting plate (34) to compress the spring (36).

5. A grouting device for bored pile construction according to claim 4, characterized in that: The extrusion member (37) comprises a connecting rod (371) and an extrusion ball (372); the connecting rod (371) is horizontally fixedly connected to the outer wall of the first rotating shaft (533) close to the hemispherical block (35); the extrusion ball (372) is fixedly connected to the end of the connecting rod (371) away from the first rotating shaft (533); the top end of the hemispherical block (35) is in the shape of an arc surface that can contact and cooperate with the extrusion ball (372).

6. A grouting device for bored pile construction according to claim 1, characterized in that: The material conveying mechanism (6) comprises a material storage tank (61) and a pump body (62); the material storage tank (61) is mounted on the top surface of the vehicle body (1); the pump body (62) is mounted on the top surface of the vehicle body (1), the input end of the pump body (62) is fixedly connected to a feed pipe (621) connected to the inside of the material storage tank (61), and the output end of the pump body (62) is fixedly connected to a discharge pipe (622) connected to a grouting pipe (3).

7. A grouting device for bored pile construction according to claim 6, characterized in that: A second motor (63) is installed on the top surface of the material storage tank (61); a second stirring shaft (631) extending into the material storage tank (61) is coaxially fixedly connected to the output end of the second motor (63); and a second stirring plate (632) is fixedly connected to the outer wall of the second stirring shaft (631).

8. A grouting device for bored pile construction according to claim 1, characterized in that: A vertical slide groove (21) is provided on the side wall of the support seat (2) near the grouting pipe (3), and a third motor (22) is installed on the top surface of the support seat (2); a screw rod (23) vertically extending into the slide groove (21) is coaxially fixed to the output end of the third motor (22); a slide plate (24) threadedly matched with the screw rod (23) is sleeved on the outer wall of the screw rod (23); the slide plate (24) is slidably matched with the inner wall of the slide groove (21); the grouting pipe (3) is vertically fixed to the outer wall of the slide plate (24).

9. A grouting device for bored pile construction according to claim 1, characterized in that: A ring body (11) surrounding the outside of the grouting pipe (3) is fixedly connected to the outer wall of the vehicle body (1) near the grouting pipe (3); a group of electric push rods (12) are horizontally installed on the inner circumference of the ring body (11); the group of electric push rods (12) are evenly spaced along the inner circumference of the ring body (11), and a limiting ball (13) that can contact the outer wall of the grouting pipe (3) is rotatably provided at the output end of each electric push rod (12).

10. A grouting device for bored pile construction according to claim 1, characterized in that: A support plate (14) is fixedly connected to the outer wall of the support leg of the vehicle body (1); a threaded rod (15) is vertically penetrated through the support plate (14); the threaded rod (15) is threadedly connected to the support plate (14), and a pointed rod (16) is coaxially fixedly connected to the bottom end of the threaded rod (15).

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