Cast-in-place device for reinforced concrete cast-in-place pile

Abstract

The utility model belongs to the technical field of concrete pile foundation pouring, and particularly relates to a pouring device of a reinforced concrete cast-in-place pile. Comprising an infusion tube, an infusion opening is formed in the lower portion of the side wall of the infusion tube in a penetrating mode, a protruding cylinder is fixedly connected to the bottom face of the infusion tube, a motor is arranged in the protruding cylinder, the output shaft end of the motor is fixedly connected with a lengthened shaft, the shaft end of the lengthened shaft is fixedly connected with a threaded column, and the threaded column is detachably sleeved with a first stirring paddle; a rotating cylinder is rotatably inserted in the middle of the bottom surface of the convex cylinder in a penetrating manner, the lengthened shaft is located in a cylinder opening of the rotating cylinder and is rotatably connected with the rotating cylinder, and the lower part of the rotating cylinder is detachably sleeved with a second stirring paddle; concrete pouring can be conducted on a pile hole through the pouring pipe, and during concrete pouring, the first stirring paddle and the second stirring paddle can be driven to rotate, so that concrete in a cast-in-place pile is stirred, air in the concrete is exhausted, and the supporting strength of a pile foundation after pouring is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete pile foundation pouring, and in particular relates to a pouring device for reinforced concrete bored piles. Background Art

[0002] The concrete cast-in-place pile is a kind of pile made by directly drilling a hole on the pile position on site, and then pouring concrete directly into the hole or placing a steel cage and then pouring concrete. The existing concrete cast-in-place piles are generally divided into two types: pipe-sinking cast-in-place piles and bored cast-in-place piles. Among them, pipe-sinking cast-in-place piles use hammer pile driving equipment to sink and pull out the pipes to form piles, which are called hammer-sinking cast-in-place piles. However, the construction quality is difficult to control. Pulling out the pipes too quickly can easily cause the pile body to shrink. Moreover, since they are soil-squeezing piles, the piles cast in place in advance are easily affected by the soil-squeezing effect and tilt, fracture or even dislocation. Since the hammering during construction will generate loud noise and vibration that will affect the surrounding buildings, it is not suitable for use in urban areas. Some cities prohibit the use of piles in urban areas. The more commonly used concrete cast-in-place piles are bored cast-in-place piles. There are various methods for drilling bored cast-in-place piles. Drilling machines can be used for drilling or manual drilling. After the hole cleaning process, the prefabricated steel cage is vertically lifted into the hole, fixed after positioning, and then concrete is poured with a catheter.

[0003] However, when pouring concrete, it is currently difficult to completely expel the air inside the concrete because the concrete is compacted only by its own gravity. This results in hollowing of the pile body after the concrete solidifies, and the pile foundation has poor bearing capacity. To address the above problems, the inventors have proposed a pouring device for reinforced concrete bored piles to solve the above problems. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages to be described below.

[0005] The utility model provides the following technical solution: a grouting device for reinforced concrete bored piles, comprising a grouting pipe, a grouting port being provided through the lower part of the side wall of the grouting pipe, a convex cylinder being fixedly connected to the bottom surface of the grouting pipe, a motor being provided inside the convex cylinder, an output shaft end of the motor being fixedly connected to an extension shaft, a shaft end of the extension shaft being fixedly connected to a threaded column, a first stirring paddle being detachably sleeved on the threaded column, a rotating cylinder being rotatably inserted through the middle part of the bottom surface of the convex cylinder, the extension shaft being located in the cylinder mouth of the rotating cylinder, and the extension shaft being rotatably connected to the rotating cylinder, and a second stirring paddle being detachably sleeved on the lower part of the rotating cylinder.

[0006] Furthermore, a fixing seat is provided on the side wall of the motor, and the side wall of the fixing seat is fixedly connected to the inner wall of the convex cylinder.

[0007] Furthermore, the first stirring paddle and the second stirring paddle are both located outside the convex cylinder, and the second stirring paddle is located between the first stirring paddle and the convex cylinder.

[0008] Furthermore, a nut is provided on one side of the first stirring paddle, and the nut is screw-fitted with the threaded column.

[0009] Furthermore, a limit plate is fixedly sleeved on the lower part of the side wall of the extended shaft, a through opening is provided through the middle part of the top surface of the first stirring paddle, the first stirring paddle is sleeved on the threaded column through the through opening, and the size of the limit plate is larger than the size of the through opening.

[0010] Furthermore, a ring sleeve is fixedly inserted into the middle of the bottom surface of the second stirring paddle, the rotating cylinder is located in the ring opening of the ring sleeve, a threaded hole is provided on the side wall of the ring sleeve, one end of the threaded hole extends into the ring opening of the ring sleeve, and a fastening bolt is provided on one side of the ring sleeve, which is threadedly connected to the threaded hole.

[0011] Furthermore, a first gear is fixedly sleeved on the extension shaft, and a second gear is fixedly sleeved on the outer wall of the rotating cylinder;

[0012] A transmission gear is meshed between the first gear and the second gear. A horizontal shaft is fixedly inserted into the transmission gear. A concave plate is provided on one side of the transmission gear. The horizontal shaft is rotatably connected to the concave plate.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] The utility model provides a pouring device for reinforced concrete bored piles, which can pour concrete into the pile hole through a pouring pipe. When pouring concrete, the first stirring paddle and the second stirring paddle can be driven to rotate, thereby stirring the concrete inside the bored pile, and then the air inside the concrete is discharged, so as to improve the supporting strength after the pile foundation is poured. The first stirring paddle and the second stirring paddle rotate in opposite directions when rotating, thereby improving the stirring effect. At the same time, the first stirring paddle and the second stirring paddle are easy to disassemble and assemble, so that the first stirring paddle and the second stirring paddle that are worn can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 Schematic diagram of the internal structure of the convex cylinder.

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the cooperation between the first stirring paddle and the second stirring paddle.

[0019] In the figure: 1-infusion tube; 2-infusion port; 3-convex cylinder; 4-motor; 5-fixed seat; 6-extension shaft; 7-first gear; 8-limiting plate; 9-threaded column; 10-first stirring paddle; 11-through port; 12-nut; 13-concave plate; 14-transmission gear; 15-transverse axis; 16-second gear; 17-rotating cylinder; 18-second stirring paddle; 19-ring; 20-threaded hole; 21-fastening bolt. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] like Figure 1-4 As shown, the utility model provides a grouting device for reinforced concrete bored piles, comprising a grouting pipe 1, a grouting port 2 is provided through the lower part of the side wall of the grouting pipe 1, a convex cylinder 3 is fixedly connected to the bottom surface of the grouting pipe 1, a motor 4 is provided inside the convex cylinder 3, an output shaft end of the motor 4 is fixedly connected to an extension shaft 6, a shaft end of the extension shaft 6 is fixedly connected to a threaded column 9, a first stirring paddle 10 is detachably sleeved on the threaded column 9, a rotating cylinder 17 is rotatably inserted into the middle part of the bottom surface of the convex cylinder 3, the extension shaft 6 is located in the barrel mouth of the rotating cylinder 17, and the extension shaft 6 is rotatably connected to the rotating cylinder 17, and the lower part of the rotating cylinder 17 is detachably sleeved with a second stirring paddle 18.

[0022] A fixing seat 5 is provided on the side wall of the motor 4 , and the side wall of the fixing seat 5 is fixedly connected to the inner wall of the convex cylinder 3 .

[0023] By adopting the above technical solution, the motor 4 is installed through the fixed seat 5, and the motor 4 is started. The extended shaft 6 can drive the first stirring paddle 10 to rotate under the action of the output shaft of the motor 4, and the provided grouting pipe 1 is extended into the interior of the bored pile through the external lifting equipment, and the grouting machine is turned on, so that the concrete in the grouting machine enters the bored pile through the grouting port 2. As the concrete inside the bored pile enters, the concrete gradually accumulates in the bored pile, and the lifting equipment moves the grouting pipe 1 upward continuously for grouting.

[0024] The first stirring paddle 10 and the second stirring paddle 18 are both located outside the convex cylinder 3 , and the second stirring paddle 18 is located between the first stirring paddle 10 and the convex cylinder 3 . A nut 12 is provided on one side of the first stirring paddle 10 , and the nut 12 is screwed together with the threaded column 9 .

[0025] By adopting the above technical solution, when the extension shaft 6 rotates, the second gear 16 can be rotated through the transmission gear 14, and then the rotating cylinder 17 can drive the second stirring paddle 18 to rotate. When the first stirring paddle 10 and the second stirring paddle 18 stir the concrete inside the cast-in-place pile, the air inside the concrete can be discharged to improve the supporting strength after pouring. When the first stirring paddle 10 needs to be disassembled for replacement, the nut 12 is loosened by an external wrench to separate the nut 12 from the threaded column 9, and the first stirring paddle 10 can be removed to replace the first stirring paddle 10.

[0026] A limit plate 8 is fixedly sleeved on the lower part of the side wall of the extended shaft 6, and a through opening 11 is provided through the middle of the top surface of the first stirring paddle 10. The threaded column 9 cooperates with the through opening 11, and the size of the limit plate 8 is larger than that of the through opening 11.

[0027] By adopting the above technical solution, when installing the first stirring paddle 10, the limiting plate 8 is used to limit the first stirring paddle 10 to prevent the first stirring paddle 10 from being offset during installation.

[0028] A ring sleeve 19 is fixedly inserted into the middle of the bottom surface of the second stirring paddle 18, and the rotating cylinder 17 is located in the ring opening of the ring sleeve 19. A threaded hole 20 is provided on the side wall of the ring sleeve 19, and one end of the threaded hole 20 extends into the ring opening of the ring sleeve 19. A fastening bolt 21 is provided on one side of the ring sleeve 19, and the fastening bolt 21 is threadedly connected to the threaded hole 20.

[0029] By adopting the above technical solution, the size of the limit plate 8 is the same as the size of the rotating cylinder 17. When the second stirring paddle 18 needs to be disassembled for replacement, the first stirring paddle 10 is first removed, and then the fastening bolt 21 is loosened so that the rod end of the fastening bolt 21 is separated from the rotating cylinder 17. Then, the second stirring paddle 18 is pulled downward so that the ring sleeve 19 is removed from the limit plate 8. The disassembly of the second stirring paddle 18 is completed. When the second stirring paddle 18 needs to be installed, the operation is reversed.

[0030] A first gear 7 is fixedly sleeved on the extension shaft 6, and a second gear 16 is fixedly sleeved on the outer wall of the rotating cylinder 17;

[0031] A transmission gear 14 is meshed between the first gear 7 and the second gear 16 . A transverse shaft 15 is fixedly inserted into the transmission gear 14 . A concave plate 13 is provided on one side of the transmission gear 14 . The transverse shaft 15 is rotatably connected to the concave plate 13 .

[0032] By adopting the above technical solution, the motor 4 is started, and the extended shaft 6 drives the first gear 7 to rotate under the action of the output shaft of the motor 4, so that the first gear 7 is engaged with the transmission gear 14, and the transmission gear 14 is engaged with the second gear 16, so that the rotating cylinder 17 can be rotated, and then the second stirring paddle 18 can be rotated.

[0033] Working principle: When the utility model is in use, the grouting pipe 1 is extended into the interior of the bored pile through an external lifting device, and the grouting machine is turned on, so that the concrete in the grouting machine enters the bored pile through the grouting port 2. As the concrete in the bored pile enters, the concrete gradually accumulates in the bored pile, and the lifting device continuously moves upward with the grouting pipe 1 to carry out grouting;

[0034] While pouring, the motor 4 is started. Under the action of the output shaft of the motor 4, the extension shaft 6 can drive the first stirring paddle 10 and the first gear 7 to rotate. Through the mutual engagement of the transmission gear 14 and the second gear 16, the rotating cylinder 17 can be rotated, and then the second stirring paddle 18 can be rotated. When the first stirring paddle 10 and the second stirring paddle 18 rotate, the concrete inside the cast-in-place pile can be stirred, thereby expelling the air inside the concrete to improve the support strength after pouring;

[0035] When the first stirring paddle 10 needs to be disassembled, the nut 12 is loosened by an external wrench so that the nut 12 is separated from the threaded column 9, and the first stirring paddle 10 can be removed to replace the first stirring paddle 10;

[0036] When the second stirring paddle 18 needs to be disassembled for replacement, first remove the first stirring paddle 10, then loosen the fastening bolt 21 so that the rod end of the fastening bolt 21 is separated from the rotating cylinder 17, then pull the second stirring paddle 18 downward so that the ring sleeve 19 is removed from the limit plate 8, and the disassembly of the second stirring paddle 18 is completed. When the second stirring paddle 18 needs to be installed, the operation can be reversed.

[0037] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pouring device for reinforced concrete bored piles, comprising a pouring pipe (1), characterized in that: The invention comprises an infusion pipe (1), wherein the lower part of the side wall of the infusion pipe (1) is provided with an infusion port (2), the bottom surface of the infusion pipe (1) is fixedly connected to a convex cylinder (3), the interior of the convex cylinder (3) is provided with a motor (4), the output shaft end of the motor (4) is fixedly connected to an extension shaft (6), the shaft end of the extension shaft (6) is fixedly connected to a threaded column (9), a first stirring paddle (10) is detachably sleeved on the threaded column (9), a rotating cylinder (17) is rotatably inserted into the middle part of the bottom surface of the convex cylinder (3), the extension shaft (6) is located in the cylinder mouth of the rotating cylinder (17), and the extension shaft (6) is rotatably connected to the rotating cylinder (17), and the lower part of the rotating cylinder (17) is detachably sleeved with a second stirring paddle (18).

2. A reinforced concrete pile pouring device according to claim 1, characterized in that: A fixing seat (5) is provided on the side wall of the motor (4), and the side wall of the fixing seat (5) is fixedly connected to the inner wall of the convex cylinder (3).

3. The pouring device for reinforced concrete piles according to claim 1, characterized in that: The first stirring paddle (10) and the second stirring paddle (18) are both located outside the convex cylinder (3), and the second stirring paddle (18) is located between the first stirring paddle (10) and the convex cylinder (3).

4. A reinforced concrete pile pouring device according to claim 1, characterized in that: A nut (12) is provided on one side of the first stirring paddle (10), and the nut (12) is screw-fitted with the threaded column (9).

5. The reinforced concrete pile pouring device according to claim 1, characterized in that: A limit plate (8) is fixedly sleeved on the lower part of the side wall of the extended shaft (6); a through opening (11) is provided through the middle part of the top surface of the first stirring paddle (10); the first stirring paddle (10) is sleeved on the threaded column (9) through the through opening (11); and the size of the limit plate (8) is larger than the size of the through opening (11).

6. A reinforced concrete pile pouring device according to claim 5, characterized in that: A ring sleeve (19) is fixedly inserted into the middle of the bottom surface of the second stirring paddle (18), and the rotating cylinder (17) is located in the ring opening of the ring sleeve (19). A threaded hole (20) is provided on the side wall of the ring sleeve (19), and one end of the threaded hole (20) extends into the ring opening of the ring sleeve (19). A fastening bolt (21) is provided on one side of the ring sleeve (19), and the fastening bolt (21) is threadedly connected to the threaded hole (20).

7. The reinforced concrete pile pouring device according to claim 1, characterized in that: A first gear (7) is fixedly sleeved on the extension shaft (6), and a second gear (16) is fixedly sleeved on the outer wall of the rotating cylinder (17); A transmission gear (14) is meshed between the first gear (7) and the second gear (16), a transverse shaft (15) is fixedly inserted into the transmission gear (14), a concave plate (13) is provided on one side of the transmission gear (14), and the transverse shaft (15) is rotatably connected to the concave plate (13).

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