Pile foundation post-grouting device with high stability

Abstract

The utility model discloses a pile foundation post-grouting device with high stability, which comprises a main box body, a material mixing box is arranged in one end of the main box body, the top of the material mixing box is provided with a feeding hole and a motor, the output end of the motor is fixedly connected with a shaft rod, the bottom end of the shaft rod extends into the material mixing box and is fixedly connected with a stirring belt, and the stirring belt is fixedly connected with the feeding hole. A material pumping pump is mounted at the inner top of the main box body, a material pumping pipe is communicated between one end of the material pumping pump and the material mixing box, an electric telescopic rod is fixedly connected to the top of the main box body, a mounting plate is fixedly connected to the bottom end of the electric telescopic rod, and a grouting pipe is fixedly connected to the bottom of the mounting plate; according to the high-stability pile foundation post-grouting device, slurry is guided into the mixing box through the feeding port, the motor is started to drive the shaft rod to rotate, the stirring belt installed on the shaft rod achieves stirring of the slurry when the shaft rod rotates, and the phenomenon that the slurry is static and settled is avoided.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment and related products, specifically a highly stable post-grouting device for pile foundations. Background Technology

[0002] Pile foundations, as a special type of deep foundation, have advantages such as high bearing capacity, low settlement, convenient construction, flexible layout, and wide applicability, playing an increasingly important role in the field of civil engineering. However, in actual projects, due to reasons such as incomplete cleaning of sediment and loose soil at the pile bottom, or the use of mud slurry to protect the pile wall, resulting in a layer of mud skin around the pile, which reduces the side friction resistance between the pile and the soil, the bearing capacity of the pile foundation is insufficient, adversely affecting the quality and safety of the project. Post-grouting technology for pile foundations effectively compensates for this deficiency. Post-grouting refers to injecting cement grout at a certain pressure into the pile tip and the soil layer beside the pile using a grouting pump through a pre-embedded grouting steel pipe channel after the pile has reached a certain age. The grout acts to penetrate, fill, compact, split, and consolidate the soil around the pile, thereby enhancing the strength and stiffness of the soil at the pile tip and the soil layer beside the pile, increasing the resistance and roughness of the shear section of the pile side, and thus achieving the effects of increasing the bearing capacity of the pile tip, the side friction resistance, and reducing settlement.

[0003] The grouting process after pile foundation is required to use devices such as grouting pumps and grout tanks. However, the grouting devices currently in use have simple structures and relatively limited functions. The grout is prone to serious sedimentation due to stillness, and the grout tends to adhere to the inner wall of the grout pipe after injection, causing blockage. Utility Model Content

[0004] The purpose of this invention is to provide a highly stable post-grouting device for pile foundations to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly stable post-grouting device for pile foundations, comprising a main housing, a mixing tank installed inside one end of the main housing, a feed inlet and a motor at the top of the mixing tank, a shaft fixedly connected to the output end of the motor, the bottom end of the shaft extending into the mixing tank and fixedly connected to a mixing belt, a pump installed at the top inner interior of the main housing, a pumping pipe connecting one end of the pump to the mixing tank, an electric telescopic rod fixedly connected to the top of the main housing, and a mounting plate fixedly connected to the bottom end of the electric telescopic rod. The bottom of the mounting plate is fixedly connected to a grouting pipe, and the top of the grouting pipe is connected to a conveying pipe through a pump. The bottom of the main housing is provided with a stabilizing plate, and the stabilizing plate is provided with a limiting groove. The grouting pipe is slidably inserted into the limiting groove. One end of the stabilizing plate is fixedly connected to a vertical plate. A vibrating motor is installed on the side wall of the vertical plate. One end of the vibrating motor is provided with a traction plate. One side of the top of the traction plate is fixedly connected to an impact plate. The impact plate passes through the vertical plate and is fixedly fitted with a limiting sleeve. The two ends of the limiting sleeve are fixedly connected to the vertical plate with elastic elements.

[0006] Preferably, four universal self-locking wheels are fixedly connected to the bottom of the main housing, and the four universal self-locking wheels are respectively fixed to the four corners of the bottom of the main housing.

[0007] Preferably, a push handle is fixedly connected to one side of the outer wall of the main housing.

[0008] Preferably, the bottom of the main housing is provided with a through-hole that communicates with the stabilizing plate, and the grouting pipe is slidably inserted into the through-hole.

[0009] Preferably, the elastic element is a spring.

[0010] Preferably, the end of the extraction pipe away from the extraction pump extends toward the inner bottom of the mixing tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This highly stable post-grouting device for pile foundations introduces grout into the mixing tank through the inlet. The motor is started to drive the shaft to rotate. When the shaft rotates, the mixing belt installed on it agitates the grout, preventing the grout from settling.

[0013] This highly stable post-grouting device for pile foundations uses an electric telescopic rod to insert the grouting pipe into the grouting steel pipe. The pump is started to extract the grout through the extraction pipe and then transport it to the grouting pipe through the delivery pipe to achieve grouting. After grouting is completed, the vibrating motor can be started to cause the traction plate to drive the impact plate to vibrate laterally. The impact plate impacts the outer wall of the grouting pipe to achieve vibration, shaking off the grout adhering to the inner wall of the grouting pipe and preventing the grouting pipe from becoming blocked. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a highly stable post-grouting device for pile foundations according to the present invention.

[0015] Figure 2 This is an enlarged view of point A of a highly stable post-grouting device for pile foundations according to this utility model.

[0016] In the diagram: 1. Main body; 2. Mixing box; 3. Feed inlet; 4. Motor; 5. Shaft; 6. Mixing belt; 7. Pump; 8. Pumping pipe; 9. Electric telescopic rod; 10. Mounting plate; 11. Push handle; 12. Grouting pipe; 13. Conveying pipe; 14. Stabilizing plate; 15. Vertical plate; 16. Vibrating motor; 17. Traction plate; 18. Impact plate; 19. Limiting sleeve; 20. Elastic element; 21. Universal self-locking wheel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-2This utility model provides an embodiment of a high-stability post-grouting device for pile foundations, comprising a main housing 1, a mixing tank 2 installed inside one end of the main housing, an inlet 3 and a motor 4 at the top of the mixing tank 2, a shaft 5 fixedly connected to the output end of the motor 4, the bottom end of the shaft 5 extending into the mixing tank 2 and fixedly connected to a mixing belt 6, a pump 7 installed at the top inside the main housing 1, a pump pipe 8 connecting one end of the pump 7 to the mixing tank 2, an electric telescopic rod 9 fixedly connected to the top of the main housing 1, an mounting plate 10 fixedly connected to the bottom end of the electric telescopic rod 9, a grouting pipe 12 fixedly connected to the bottom of the mounting plate 10, and a conveying pipe 13 connecting the top end of the grouting pipe 12 to the pump 7. Specifically, the motor 4 drives the shaft 5 to rotate, and the mixing belt 6 installed on the shaft 5 agitates the grout, preventing the grout from settling. The electric telescopic rod 9 is controlled to insert the grouting pipe 12 into the mixing tank. The material is inserted into the grouting steel pipe. The pump 7 is started and the material is extracted through the extraction pipe 8. The material is then transported to the grouting pipe 12 through the delivery pipe 13 to achieve grouting. The bottom of the main box 1 is provided with a stabilizing plate 14. The stabilizing plate 14 is provided with a limiting groove. The grouting pipe 12 is slidably inserted into the limiting groove. One end of the stabilizing plate 14 is fixedly connected to a vertical plate 15. An oscillating motor 16 is installed on the side wall of the vertical plate 15. One end of the oscillating motor 16 is provided with a traction plate 17. One side of the top of the traction plate 17 is fixedly connected to an impact plate 18. The impact plate 18 passes through the vertical plate 15 and is fixedly sleeved with a limiting sleeve 19. The two ends of the limiting sleeve 19 are fixedly connected to the vertical plate 15 with elastic elements 20. Specifically, the oscillating motor 16 is started to cause the traction plate 17 to drive the impact plate 18 to vibrate laterally. The impact plate 18 impacts the outer wall of the grouting pipe 12 to achieve vibration of the grouting pipe 12, shaking off the grout adhering to the inner wall of the grouting pipe 12 and preventing the grouting pipe 12 from being blocked.

[0021] In this embodiment, four universal self-locking wheels 21 are fixedly connected to the bottom of the main box 1. The four universal self-locking wheels 21 are respectively fixed at the four corners of the bottom of the main box 1 to facilitate the movement of the main box 1. A push handle 11 is fixedly connected to one side of the outer wall of the main box 1 to facilitate the operation of the main box 1. The bottom of the main box 1 is provided with a through-hole communicating with the stabilizing plate 14, and the grouting pipe 12 is slidably inserted into the through-hole. The elastic element 20 is a spring with high traction. The end of the material extraction pipe 8 away from the material extraction pump 7 extends towards the inner bottom of the mixing box 2.

[0022] Working principle: First, the slurry is introduced into the mixing tank 2 through the feed inlet 3. The motor 4 is started to drive the shaft 5 to rotate. When the shaft 5 rotates, the agitator belt 6 installed on it agitates the slurry to prevent the slurry from settling. The electric telescopic rod 9 is controlled to insert the grouting pipe 12 into the grouting steel pipe. The pump 7 is started to extract the slurry through the extraction pipe 8 and then transport it to the grouting pipe 12 through the conveying pipe 13 to achieve grouting. After grouting is completed, the vibration motor 16 can be started to cause the traction plate 17 to drive the impact plate 18 to vibrate laterally. The impact plate 18 impacts the outer wall of the grouting pipe 12 to achieve vibration of the grouting pipe 12, shaking off the slurry adhering to the inner wall of the grouting pipe 12 and preventing the grouting pipe 12 from being blocked.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pile foundation post-grouting device with high stability, comprising a main box (1), characterized in that: One end of the main box is internally provided with a mixing box (2), the top of the mixing box (2) is provided with a feeding port (3) and a motor (4), the output end of the motor (4) is fixedly connected with a shaft rod (5), the bottom end of the shaft rod (5) extends into the mixing box (2) and is fixedly connected with a stirring belt (6), the inner top of the main box (1) is provided with a pumping pump (7), one end of the pumping pump (7) and the mixing box (2) are communicated with a pumping pipe (8), the top of the main box (1) is fixedly connected with an electric telescopic rod (9), the bottom end of the electric telescopic rod (9) is fixedly connected with a mounting plate (10), the bottom of the mounting plate (10) is fixedly connected with a grouting pipe (12), the top end of the grouting pipe (12) and the pumping pump (7) are communicated with a conveying pipe (13), the inner bottom of the main box (1) is provided with a stabilizing plate (14), the stabilizing plate (14) is provided with a limiting groove, the grouting pipe (12) is slidingly inserted into the limiting groove, one end of the stabilizing plate (14) is fixedly connected with a vertical plate (15), the side wall of the vertical plate (15) is provided with an oscillation motor (16), one end of the oscillation motor (16) is provided with a traction plate (17), the top end of one side of the traction plate (17) is fixedly connected with an impact plate (18), the impact plate (18) penetrates through the vertical plate (15) and is fixedly sleeved with a limiting sleeve (19), the both ends of the limiting sleeve (19) and the vertical plate (15) are fixedly connected with an elastic element (20).

2. The pile post-grouting device with high stability according to claim 1, characterized in that: The bottom of the main box (1) is fixedly connected with four universal self-locking wheels (21), and the four universal self-locking wheels (21) are respectively fixed at the bottom corners of the main box (1).

3. The pile post grouting device with high stability according to claim 1, characterized in that: The outer wall of one side of the main box (1) is fixedly connected with a push handle (11).

4. The pile post grouting device with high stability according to claim 1, characterized in that: The bottom of the main box (1) is provided with a through hole communicated with the stabilizing plate (14), and the grouting pipe (12) is slidingly inserted into the through hole.

5. The pile post-stud device according to claim 1, wherein: The elastic element (20) is a spring.

6. The pile post grouting device with high stability according to claim 1, characterized in that: The end of the pumping pipe (8) away from the pumping pump (7) extends to the inner bottom of the mixing box (2). The end of the pumping pipe (8) away from the pumping pump (7) extends to the inner bottom of the mixing box (2).

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