Pile foundation grouting device for capital construction project

Abstract

The utility model discloses an infrastructure project pile foundation grouting device, belongs to the technical field of grouting equipment, and aims at solving the technical problem that in the prior art, infrastructure project pile foundation grouting construction equipment is low in grouting pressure. The capital construction project pile foundation grouting device comprises a bearing plate, a mortar pump and a mortar mixing cylinder are assembled at the top of the bearing plate, a stirring mechanism is assembled in the mortar mixing cylinder, the feeding end of the mortar pump is connected with a material conveying pipe, the end, away from the mortar pump, of the material conveying pipe communicates with the bottom of the mortar mixing cylinder, a spiral conveying paddle is rotationally assembled in the mortar pump, and the spiral conveying paddle is connected with the stirring mechanism. The spiral conveying paddle is arranged in the length direction of the conveying pipe, and a second motor used for driving the spiral conveying paddle to rotate is installed at the end of the conveying pipe. According to the grouting device for the capital construction project pile foundation, a secondary pressurization structure mode is adopted, the grouting smoothness is improved, the grouting pressure is increased, and the reinforcing effect of grouting on the capital construction project pile foundation is further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of grouting equipment, specifically relating to a grouting device for pile foundations in infrastructure engineering. Background Technology

[0002] With rapid social development and accelerated urbanization, the construction industry has ushered in unprecedented development opportunities. The construction scale of infrastructure such as high-rise buildings, large bridges, subways, ports, highways, and airport runways is constantly expanding, and the requirements for foundation treatment technology are also becoming increasingly stringent. As an efficient and environmentally friendly foundation reinforcement method, pile foundation grouting technology is being widely used.

[0003] In infrastructure projects, injecting cement grout or other grouting materials into pile foundations can significantly improve the soil conditions at the pile bottom or sides, enhance the bearing capacity of the soil strata near the pile foundation, thereby improving the overall bearing capacity of the pile foundation and ensuring the safety and stability of the building. However, traditional grouting construction equipment generally adopts direct grouting or simply using a grout pump for pressurized grouting. The grouting pressure is low, and the grout injected into the pile foundation is difficult to fill effectively, often resulting in pores that affect the reinforcement effect of the pile foundation. Therefore, this application proposes a grouting device for pile foundations in infrastructure projects. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a grouting device for infrastructure engineering pile foundations, which aims to solve the technical problem of low grouting pressure in existing infrastructure engineering pile foundation grouting construction equipment.

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a grouting device for foundation piles in infrastructure engineering, including a bearing plate. A mortar pump and a mixing cylinder are mounted on the top of the bearing plate. A stirring mechanism is installed inside the mixing cylinder. The feed end of the mortar pump is connected to a conveying pipe. The end of the conveying pipe away from the mortar pump is connected to the bottom of the mixing cylinder. A spiral conveying paddle is rotatably mounted inside the mortar pump. The spiral conveying paddle is arranged along the length of the conveying pipe. A second motor for driving the spiral conveying paddle to rotate is installed at the end of the conveying pipe.

[0007] Preferably, the feed end of the mortar pump is connected to a bend, and the conveying pipe is connected to the feed end of the mortar pump through the bend.

[0008] Preferably, a receiving pipe is provided on the top side wall of the end of the conveying pipe away from the mortar pump, and a discharge pipe is provided at the bottom of the mixing cylinder, and the discharge pipe and the receiving pipe are connected.

[0009] Preferably, a ring plate is fixedly provided at the bottom of the outer wall of the mixing cylinder, a support column is vertically fixed between the ring plate and the bearing plate, a support arm is vertically fixed between the second motor and the bearing plate, and rollers are installed at the four corners of the bottom of the bearing plate.

[0010] Preferably, the radius of the spiral conveyor blade gradually decreases at the end facing the receiving pipe.

[0011] Preferably, the stirring mechanism includes a horizontal arm fixed at the top of the mixing cylinder, a stirring paddle rotatably mounted at the bottom of the horizontal arm, and a first motor mounted on the horizontal arm for driving the stirring paddle to rotate. The stirring paddle extends into the mixing cylinder and is coaxially distributed with the mixing cylinder.

[0012] Preferably, the bottom of the mixing cylinder has a bucket-shaped structure, and the bottom of the stirring paddle is provided with a material feeding component.

[0013] Preferably, the material feeding component includes an extension shaft coaxially fixed to the bottom end of the stirring paddle and multiple feeding rods radially fixed to the side wall of the extension shaft. The bottom end of the extension shaft extends into the discharge pipe, and the length of the multiple feeding rods gradually increases from the bottom end of the extension shaft upwards.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through the setting of a mixing cylinder and a stirring mechanism, allows a mortar transport vehicle to deliver mortar into the mixing cylinder. The first motor is started to drive the stirring paddle to rotate, which can stir and mix the mortar delivered into the mixing cylinder, ensuring the uniformity of the mortar and improving the grouting effect.

[0017] This invention utilizes a spiral conveyor and a mortar pump. The discharge end of the mortar pump is connected to the grouting pipe. The mortar, after being mixed in the mixing cylinder, falls into the conveying pipe. Starting the second motor drives the spiral conveyor to rotate, which continuously pressurizes and delivers the mortar to the mortar pump through the conveying pipe and the bend. Starting the mortar pump again pressurizes and delivers the mortar to the grouting pipe for grouting. This secondary pressurization structure improves the smoothness of grouting and enhances the grouting pressure, further improving the reinforcement effect of the foundation piles in infrastructure projects. Attached image description:

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the mixing cylinder in this utility model;

[0021] Figure 3 This is a schematic diagram of the stirring mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the mortar pump in this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the material conveying pipe in this utility model;

[0024] Figure 6 This is a schematic diagram of the material feeding component in this utility model.

[0025] The labels in the attached diagram are as follows: 1. Bearing plate; 2. Mortar pump; 3. Mixing cylinder; 4. Ring plate; 5. Support column; 6. Roller; 7. Mixing mechanism; 8. Discharge pipe; 9. Cross arm; 10. Mixing paddle; 11. First motor; 12. Material feeding component; 13. Bend; 14. Conveying pipe; 15. Receiving pipe; 16. Second motor; 17. Support arm; 18. Spiral conveyor paddle; 19. Extension shaft; 20. Paddle lever. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This embodiment provides a grouting device for pile foundations in infrastructure engineering, the structural schematic diagram of which is shown below. Figures 1-6 As shown, the system includes a support plate 1, a mortar pump 2 and a mixing cylinder 3 mounted on the top of the support plate 1, and a mixing mechanism 7 mounted inside the mixing cylinder 3. The mixing mechanism 7 includes a horizontal arm 9 fixed at the top of the mixing cylinder 3, a stirring paddle 10 rotatably mounted at the bottom of the horizontal arm 9, and a first motor 11 mounted on the horizontal arm 9 to drive the stirring paddle 10 to rotate. The stirring paddle 10 extends into the mixing cylinder 3 and is coaxially distributed with the mixing cylinder 3. The mortar transport vehicle discharges mortar into the mixing cylinder 3, and the first motor 11 is started to drive the stirring paddle 10 to rotate, which can mix the mortar discharged into the mixing cylinder 3, ensure the uniformity of the mortar, and improve the grouting effect.

[0028] Furthermore, the feed end of the mortar pump 2 is connected to a conveying pipe 14. The end of the conveying pipe 14 away from the mortar pump 2 is connected to the bottom of the mixing cylinder 3. A spiral conveying paddle 18 is rotatably mounted inside the mortar pump 2. The spiral conveying paddle 18 is arranged along the length of the conveying pipe 14. A second motor 16 for driving the spiral conveying paddle 18 to rotate is installed at the end of the conveying pipe 14. The discharge end of the mortar pump 2 is connected to the grouting pipe. The mortar mixed in the mixing cylinder 3 falls into the conveying pipe 14. The second motor 16 is started to drive the spiral conveying paddle 18 to rotate, which can continuously pressurize and transport the mortar to the mortar pump 2 through the conveying pipe 14 and the bend 13. Starting the mortar pump 2 can pressurize and transport the mortar to the grouting pipe for grouting operations. The secondary pressurization structure improves the smoothness of grouting and enhances the grouting pressure.

[0029] In this embodiment, the feed end of the mortar pump 2 is connected to a bend 13, and the conveying pipe 14 is connected to the feed end of the mortar pump 2 through the bend 13. Compared with the vertical arrangement of the conveying pipe 14, the length of the conveying pipe 14 and the screw conveyor 18 is increased, the pressure of the mortar is increased, and the height of the mixing cylinder 3 is reduced, which is beneficial to construction operations.

[0030] In this embodiment, a receiving pipe 15 is provided on the top side wall of the end of the conveying pipe 14 away from the mortar pump 2, and a discharge pipe 8 is provided at the bottom of the mixing cylinder 3. The discharge pipe 8 and the receiving pipe 15 are connected. The radius of the spiral conveying paddle 18 gradually decreases at the end facing the receiving pipe 15. This structural design is beneficial for the spiral conveying paddle 18 to convey the mortar falling into the conveying pipe 14, and avoids the mortar falling into the conveying pipe 14 and then getting blocked at the receiving pipe 15.

[0031] Furthermore, a ring plate 4 is fixedly installed at the bottom of the outer wall of the mixing cylinder 3, and a support column 5 is vertically fixed between the ring plate 4 and the bearing plate 1. A support arm 17 is vertically fixed between the second motor 16 and the bearing plate 1, and rollers 6 are installed at the four corners of the bottom of the bearing plate 1.

[0032] In a further embodiment, the bottom of the mixing cylinder 3 has a bucket-shaped structure, and the bottom of the mixing paddle 10 is provided with a material-pushing component 12. The material-pushing component 12 includes an extension shaft 19 coaxially fixed to the bottom of the mixing paddle 10 and multiple push rods 20 radially fixed to the side wall of the extension shaft 19. The bottom of the extension shaft 19 extends into the discharge pipe 8, and the length of the multiple push rods 20 gradually increases from the bottom of the extension shaft 19 upwards. The extension shaft 19 drives the push rods 20 to rotate with the mixing paddle 10, which can push and guide the mortar in the mixing cylinder 3 and the discharge pipe 8 to avoid mortar blockage.

[0033] Working principle: During use, the discharge end of the mortar pump 2 is connected to the grouting pipe. The mortar transport vehicle delivers the mortar to the mixing tank 3. The first motor 11 is started to drive the mixing blade 10 to rotate, which can stir and mix the mortar delivered to the mixing tank 3 to ensure the uniformity of the mortar. The mortar after being stirred in the mixing tank 3 falls into the conveying pipe 14 through the discharge pipe 8 and the receiving pipe 15. The second motor 16 is started to drive the spiral conveying blade 18 to rotate, which can hold the mortar through the conveying pipe 14 and the bend pipe 13. The mortar is continuously pressurized and transported to the mortar pump 2. Once the mortar pump 2 is started, the mortar can be pressurized again and transported to the grouting pipe for grouting. Throughout the process, the mortar is transferred through the mixing cylinder 3 and stirred by the mixing paddle 10, which can make the mortar mix evenly and improve the grouting effect. Through the spiral conveying paddle 18 and the pumping of the mortar pump 2, the secondary pressurization structure not only improves the smoothness of grouting but also enhances the grouting pressure, further improving the reinforcement effect of the foundation piles of the infrastructure project.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A capital construction pile grouting device, comprising a bearing plate (1), characterized in that: a mortar pump (2) and a mortar mixing cylinder (3) are assembled on the top of the bearing plate (1), the mortar mixing cylinder (3) is internally provided with a stirring mechanism (7), the feeding end of the mortar pump (2) is connected with a feeding pipe (14), the end of the feeding pipe (14) away from the mortar pump (2) is communicated with the bottom of the mortar mixing cylinder (3), a spiral conveying paddle (18) is rotatably assembled in the mortar pump (2), the spiral conveying paddle (18) is arranged along the length direction of the feeding pipe (14), and a second motor (16) for driving the spiral conveying paddle (18) to rotate is installed at the end of the feeding pipe (14).

2. The capital construction pile grouting device according to claim 1, characterized in that, The feeding end of the mortar pump (2) is connected with an elbow pipe (13), and the feeding pipe (14) is communicated with the feeding end of the mortar pump (2) through the elbow pipe (13).

3. The capital construction pile grouting device according to claim 2, characterized in that, A receiving pipe (15) is arranged on the top side wall of the end of the feeding pipe (14) away from the mortar pump (2), the bottom end of the mortar mixing cylinder (3) is provided with a discharging pipe (8), and the discharging pipe (8) and the receiving pipe (15) are communicated.

4. The capital construction pile grouting device according to claim 1, characterized in that, A ring plate (4) is fixedly arranged at the bottom of the outer side wall of the mortar mixing cylinder (3), a support column (5) is vertically fixed between the ring plate (4) and the bearing plate (1), a support arm (17) is vertically fixed between the second motor (16) and the bearing plate (1), and a roller (6) is installed at each corner of the bottom of the bearing plate (1).

5. The capital construction pile grouting device according to claim 3, characterized in that, The end of the spiral conveying paddle (18) towards the receiving pipe (15) gradually decreases in radius.

6. The capital construction pile grouting device according to claim 1, characterized in that, The stirring mechanism (7) comprises a horizontal arm (9) fixed at the top end of the mortar mixing cylinder (3), a stirring paddle (10) rotatably assembled at the bottom of the horizontal arm (9), and a first motor (11) installed on the horizontal arm (9) for driving the stirring paddle (10) to rotate, the stirring paddle (10) extends into the mortar mixing cylinder (3) and is coaxially distributed with the mortar mixing cylinder (3).

7. The capital construction pile grouting device according to claim 6, characterized in that, The bottom end of the mortar mixing cylinder (3) is in a hopper structure, and the bottom end of the stirring paddle (10) is provided with a material pushing piece (12).

8. The capital construction pile grouting device according to claim 7, characterized in that, The material pushing piece (12) comprises an extension shaft (19) coaxially fixed at the bottom end of the stirring paddle (10) and a plurality of pushing rods (20) radially fixed on the side wall of the extension shaft (19), the bottom end of the extension shaft (19) extends into the discharging pipe (8), and the lengths of the plurality of pushing rods (20) gradually increase upwards from the bottom end of the extension shaft (19).

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