Grouting device for building pile foundation

Abstract

The utility model relates to the technical field of building pile foundations, in particular to a mud jacking device for a building pile foundation, which comprises a mud jacking pipe, the bottom end of the mud jacking pipe is in bolted connection with a mud discharging pipe entering the building pile foundation, and the surface of the mud discharging pipe is provided with a mud discharging hole for discharging mud. A sealing plate for sealing the slurry discharging hole is slidably connected to the interior of the slurry discharging pipe, a rope chain A for driving the sealing plate to move is fixed to one side of the sealing plate through a screw, the rope chain A is sleeved with a spring for resetting the sealing plate, and an outer frame is connected to the exterior of the slurry jacking pipe through a bolt; through the servo motor, the outer frame, the driving rod A, the driving rod B, the rope chain A, the rope chain B, the ring frame, the spring and the closing plate, the problems that when an existing pile foundation grouting device is used, slurry in the grouting pipe and the slurry discharging pipe is prone to overflowing, and meanwhile residual slurry outside the grouting pipe is inconvenient to clean are solved.

Description

Technical Field

[0001] This utility model relates to the field of building pile foundation technology, specifically to a grouting device for building pile foundations. Background Technology

[0002] Building pile foundations consist of piles and a pile cap connected to the top of the piles. If the piles are completely buried in the soil and the bottom of the pile cap is in contact with the soil, it is called a low pile cap pile foundation. If the upper part of the piles is exposed above the ground and the bottom of the pile cap is above the ground, it is called a high pile cap pile foundation. Building pile foundations are usually low pile cap pile foundations and are widely used in high-rise buildings, bridges, high-speed railways and other projects. By grouting around the piles, the friction between the pile foundation and the surrounding soil is increased, thereby improving the overall bearing capacity and stability of the pile foundation.

[0003] Patent No. 202120473109.2 discloses a grouting device for pile foundations. After grouting is completed, the spring returns and the plug blocks the grout outlet, thereby reducing the chance of grout backflow and improving the grouting effect at the bottom of the pile.

[0004] However, when using existing pile foundation grouting devices, slurry remains in the grouting pipe and outlet pipe after grouting. The slurry continues to press the spring in the outlet pipe, causing the slurry in the grouting pipe and outlet pipe to continue to be discharged. The amount of discharged slurry cannot be controlled. At the same time, a lot of slurry remains on the surface of the grouting pipe after grouting. If the slurry is not cleaned in time, it will solidify on the surface of the grouting pipe, which will have a certain impact on the service life of the grouting pipe. Therefore, a grouting device for building pile foundations is to be installed. Utility Model Content

[0005] The main purpose of this utility model is to provide a grouting device for building pile foundations. This utility model solves the problem that the grout in the grouting pipe and the discharge pipe of the existing pile foundation grouting device is easy to overflow during use, and it is also inconvenient to clean the grout remaining outside the grouting pipe.

[0006] The technical solution adopted by this utility model to solve its technical problem is a grouting device for building pile foundations, including a grouting pipe. A grout discharge pipe is bolted to the bottom end of the grouting pipe and enters the building pile foundation. A grout discharge hole is opened on the surface of the grout discharge pipe to discharge slurry. A sealing plate is slidably connected inside the grout discharge pipe to seal the grout discharge hole. A rope chain A that drives the sealing plate is screwed to one side of the sealing plate. A spring that resets the sealing plate is sleeved on the outside of the rope chain A. An external frame is bolted to the outside of the grouting pipe, and a servo motor that provides power is bolted to the outside of the external frame. The power output end of the servo motor is keyed to... A drive rod B is provided, and a take-up reel A and a take-up reel B are sleeved on the outside of the drive rod B. A rope chain A is wound around the outside of the take-up reel A, and a rope chain B is wound around the outside of the take-up reel B. A ring frame is screwed to the end of the rope chain B away from the take-up reel B. A gear B is sleeved on the outside of the drive rod B, and a timing belt is meshed with the outside of the gear B. A gear A is meshed with the inside of the timing belt away from the gear B, and the drive rod A is engaged with the inside of the gear A. A limit groove is provided on the inside of the discharge pipe, and a limit block connected to the sealing plate is slidably connected to the inside of the limit groove. A pulley that stabilizes the movement of the rope chain A is rotatably connected to the inside of the outer frame.

[0007] By adopting the above technical solution, when grouting treatment is to be performed on the pile foundation of a building, the grouting pipe is first placed into the pile foundation. Then, the slurry is transported to the grouting pipe on one side of the grouting pipe through an external pump. At the same time, the servo motor outside the scaffold is driven by the external controller to drive the drive rod B to rotate clockwise. Then, the gear B outside the drive rod B drives the gear A in the synchronous belt to rotate. The gear A drives the drive rod A to rotate clockwise. The drive rod A and the winding reel A outside the drive rod B drive the rope chain A to wind up. Then, the rope chain A drives the sealing plate to separate from the grouting hole on the grouting pipe through the pulley inside the grouting pipe. The spring inside the grouting pipe is compressed, so that the slurry in the grouting pipe enters the pile foundation from the grouting hole, thereby completing the grouting treatment of the pile foundation.

[0008] When the grouting treatment of the building pile foundation is completed, the servo motor drives the drive rod B to rotate counterclockwise under the action of the external controller. Then, the gear B outside the drive rod B drives the gear A inside the synchronous belt to rotate. The gear A drives the drive rod A to rotate counterclockwise, so that the rope chain A on the receiving plate A of the drive rod A and the drive rod B is unwound, so that the tension of the grout discharge pipe is released. Subsequently, the spring inside the grout discharge pipe drives the sealing plate to move downward, so that the sealing plate blocks the grout discharge hole on the grout discharge pipe, preventing the slurry remaining in the grout discharge pipe from flowing out.

[0009] Both ends of drive rod A that contact the outer frame and one end of drive rod B that contact the outer frame are fitted with bearings with interference fit;

[0010] After grouting is completed in the grouting pipe, the servo motor drives the drive rod B to rotate counterclockwise under the action of the external controller. Then, the gear B outside the drive rod B drives the gear A inside the synchronous belt to rotate. The gear A drives the drive rod A to rotate counterclockwise, causing the storage plate B of the drive rod A and drive rod B to rotate. The rope chain B outside the storage plate B is unwound. Then, the ring frame at one end of the rope chain B moves outside the grouting pipe, which facilitates the cleaning of the residual mud outside the grouting pipe.

[0011] In the initial state, there is a distance between the ring frame and the outer frame. When rope chain A drives the closed plate to move upward, rope chain B simultaneously drives the ring frame to move upward.

[0012] The servo motor's speed is controlled by an external controller, which in turn controls the rotation of drive rods A and B.

[0013] Specifically, the outer side of the sealing plate is fitted with a rubber plug to prevent mud from overflowing.

[0014] By adopting the above technical solution, when the sealing plate moves inside the slurry discharge pipe, the rubber plug fixed by the screws on the outside of the sealing plate increases the sealing between the sealing plate and the slurry discharge pipe, preventing slurry from overflowing onto the upper part of the sealing plate.

[0015] Specifically, a bushing is engaged on the inner side of the outer frame to stabilize the rotation of the drive rod B.

[0016] By adopting the above technical solution, when the servo motor drives the drive rod B to rotate, the drive rod B rotates in the bushing inside the outer frame, and there are two sets of bushings, located outside the drive rod A and the drive rod B respectively, which improves the stability of the rotation of the drive rod A and the drive rod B.

[0017] Specifically, the bottom of the grouting pipe is welded with a ring plate to limit the movement of the ring frame.

[0018] By adopting the above technical solution, when the ring frame outside the grouting pipe moves downward, the ring plate outside the grouting pipe limits the ring frame, preventing the ring frame from falling off the grouting pipe.

[0019] Specifically, the input terminal of the servo motor is electrically connected to the power supply terminal of the external power source.

[0020] By adopting the above technical solution and connecting to an external power source, the electrical equipment can operate normally.

[0021] The beneficial effects of this utility model are:

[0022] (1) The grouting device for building pile foundation described in this utility model, when the building pile foundation has completed the grouting treatment, the servo motor is driven by the external controller to drive the drive rod B to rotate counterclockwise. Then the gear B outside the drive rod B drives the gear A inside the synchronous belt to rotate. The gear A drives the drive rod A to rotate counterclockwise, so that the rope chain A on the receiving plate A of the drive rod A and the drive rod B is unwound, so that the grout discharge pipe is released from tension. Subsequently, the spring in the grout discharge pipe drives the sealing plate to move downward, so that the sealing plate blocks the grout discharge hole on the grout discharge pipe, so as to prevent the grout in the grouting pipe and the grout discharge pipe from overflowing, and at the same time prevent the grout from flowing back.

[0023] (2) The grouting device for building pile foundation described in this utility model, after the grouting pipe is grouted, the servo motor outside the frame is driven by the external controller to drive the drive rod B and drive rod A to rotate counterclockwise, so that the receiving plate B of the drive rod A and drive rod B rotates, and the rope chain B outside the receiving plate B is unwound. Then the ring frame at one end of the rope chain B moves outside the grouting pipe, so as to facilitate the cleaning of the residual mud outside the grouting pipe. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of a grouting device for building pile foundations according to the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the external frame of a grouting device for building pile foundations according to the present invention;

[0027] Figure 3 This is a side view of the internal structure of the grouting pipe of a grouting device for building pile foundations according to this utility model;

[0028] In the diagram: 1. Servo motor; 2. External frame; 3. Grouting pipe; 4. Ring frame; 5. Ring plate; 6. Grout discharge hole; 7. Grout discharge pipe; 8. Synchronous belt; 9. Gear A; 10. Drive rod A; 11. Pulley; 12. Rope chain A; 13. Gear B; 14. Bushing; 15. Reel A; 16. Rope chain B; 17. Reel B; 18. Drive rod B; 19. Limiting block; 20. Spring; 21. Limiting groove; 22. Sealing plate; 23. Rubber plug. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To prevent the slurry remaining in the discharge pipe 7 from flowing out, as one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the grouting device for building pile foundations according to this utility model includes a grouting pipe 3. A grout discharge pipe 7, which enters the building pile foundation, is bolted to the bottom end of the grouting pipe 3. A grout discharge hole 6 is formed on the surface of the grout discharge pipe 7 to discharge slurry. A sealing plate 22, which blocks the grout discharge hole 6, is slidably connected inside the grout discharge pipe 7. A rope chain A12, which drives the sealing plate 22, is screwed to one side of the sealing plate 22. A spring 20, which resets the sealing plate 22, is sleeved on the outside of the rope chain A12. An external frame 2 is bolted to the outside of the grouting pipe 3, and a servo motor 1, which provides power, is bolted to the outside of the external frame 2. A drive rod B18 is keyed to the power output end of the servo motor 1, and the drive rod B18 is externally connected to... The system includes a take-up reel A15 and a take-up reel B17. A rope chain A12 is wound around the outside of the take-up reel A15, and a rope chain B16 is wound around the outside of the take-up reel B17. A ring frame 4 is screwed to the end of the rope chain B16 away from the take-up reel B17. A gear B13 is sleeved on the outside of the drive rod B18, and a timing belt 8 is meshed with the outside of the gear B13. A gear A9 is meshed with the inside of the timing belt 8 away from the gear B13, and a drive rod A10 is engaged with the inside of the gear A9. A limit groove 21 is formed on the inside of the discharge pipe 7, and a limit block 19 connected to the sealing plate 22 is slidably connected to the inside of the limit groove 21. A pulley 11 is rotatably connected to the inside of the outer frame 2 to stabilize the movement of the rope chain A12.

[0031] When grouting is required for the foundation of a building pile, the grouting pipe 7 is first placed inside the foundation. Then, the slurry is pumped into the grouting pipe 7 on one side of the grouting pipe 3 by an external pump. At the same time, the servo motor 1 outside the frame 2 is driven by the external controller to rotate the drive rod B18 clockwise. Then, the gear B13 outside the drive rod B18 drives the gear A9 inside the synchronous belt 8 to rotate. The gear A9 drives the drive rod A10 to rotate clockwise. The winding reel A15 outside the drive rod A10 and drive rod B18 drives the rope chain A12 to wind up. Then, the rope chain A12 drives the sealing plate 22 to separate from the grouting hole 6 on the grouting pipe 7 through the pulley 11 inside the grouting pipe 3. The spring 20 inside the grouting pipe 7 is compressed, so that the slurry inside the grouting pipe 7 enters the foundation of the building pile from the grouting hole 6, thereby completing the grouting treatment of the foundation of the building pile.

[0032] When the grouting treatment of the building pile foundation is completed, the servo motor 1 is driven by the external controller to drive the drive rod B18 to rotate counterclockwise. Then, the gear B13 outside the drive rod B18 drives the gear A9 inside the synchronous belt 8 to rotate. The gear A9 drives the drive rod A10 to rotate counterclockwise, so that the rope chain A12 on the storage plate A of the drive rod A10 and the drive rod B18 is unwound, so that the tension of the grout discharge pipe 7 is released. Then, the spring 20 inside the grout discharge pipe 7 drives the sealing plate 22 to move downward, so that the sealing plate 22 blocks the grout discharge hole 6 on the grout discharge pipe 7, preventing the slurry remaining in the grout discharge pipe 7 from flowing out.

[0033] After grouting is completed in grouting pipe 3, servo motor 1 drives drive rod B18 to rotate counterclockwise under the action of external controller. Then, gear B13 outside drive rod B18 drives gear A9 inside synchronous belt 8 to rotate. Gear A9 drives drive rod A10 to rotate counterclockwise, causing the storage plate B of drive rod A10 and drive rod B18 to rotate. Rope chain B16 outside storage plate B is unwound. Then, the ring frame 4 at one end of rope chain B16 moves outside grouting pipe 3, which facilitates the cleaning of residual mud outside grouting pipe 3.

[0034] In the initial state, there is a distance between the ring frame 4 and the outer frame 2. When the rope chain A12 drives the closed plate 22 to move upward, the rope chain B16 simultaneously drives the ring frame 4 to move upward.

[0035] The servo motor 1 is controlled by an external controller to adjust its speed, thereby controlling the rotation of drive rods A10 and B18.

[0036] To prevent mud from overflowing onto the upper part of the sealing plate 22, for example, such as Figure 3 As shown, the present invention also includes a rubber plug 23 fitted on the outside of the sealing plate 22 to prevent mud from overflowing.

[0037] When in use, as the sealing plate 22 moves inside the slurry discharge pipe 7, the rubber plug 23 fixed by the screws on the outside of the sealing plate 22 increases the sealing between the sealing plate 22 and the slurry discharge pipe 7, preventing slurry from overflowing to the upper part of the sealing plate 22.

[0038] To improve the rotational stability of drive rods A10 and B18, for example, such as Figure 2 As shown, the present invention also includes a bushing 14 that is snapped into the inner side of the outer frame 2 to stabilize the rotation of the drive rod B18.

[0039] When in use, when the servo motor 1 drives the drive rod B18 to rotate, the drive rod B18 rotates in the bushing 14 inside the outer frame 2. There are two sets of bushings 14, located outside the drive rod A10 and the drive rod B18 respectively, which improves the stability of the rotation of the drive rod A10 and the drive rod B18.

[0040] To prevent the ring frame 4 from detaching from the grouting pipe 3, for example, such as Figure 1 As shown, the present invention also includes a ring plate 5 welded to the bottom of the outer side of the grouting pipe 3 to limit the ring frame 4.

[0041] When in use, when the ring frame 4 outside the grouting pipe 3 moves downward, the ring plate 5 outside the grouting pipe 3 limits the ring frame 4 to prevent the ring frame 4 from falling off the grouting pipe 3.

[0042] For electrical equipment to function properly, for example, such as Figure 1As shown, the present invention also includes an input terminal of the servo motor 1 that is electrically connected to the power supply terminal of an external power source.

[0043] When in use, the electrical equipment works normally by connecting to an external power source.

[0044] When using this utility model, when grouting treatment is to be performed on the pile foundation, the grouting pipe 7 is first placed into the pile foundation. Then, the slurry is transported to the grouting pipe 7 on one side of the grouting pipe 3 through an external pump. At the same time, the servo motor 1 outside the frame 2 is driven by the external controller to drive the drive rod B18 to rotate clockwise. Then, the gear B13 outside the drive rod B18 drives the gear A9 inside the synchronous belt 8 to rotate. The gear A9 drives the drive rod A10 to rotate clockwise. The winding reel A15 outside the drive rod A10 and drive rod B18 drives the rope chain A12 to wind up. Then, the rope chain A12 drives the sealing plate 22 to separate from the grouting hole 6 on the grouting pipe 7 through the pulley 11 inside the grouting pipe 3. The spring 20 inside the grouting pipe 7 is compressed, so that the slurry inside the grouting pipe 7 enters the pile foundation from the grouting hole 6, thereby completing the grouting treatment of the pile foundation.

[0045] When the grouting treatment of the building pile foundation is completed, the servo motor 1 is driven by the external controller to drive the drive rod B18 to rotate counterclockwise. Then, the gear B13 outside the drive rod B18 drives the gear A9 inside the synchronous belt 8 to rotate. The gear A9 drives the drive rod A10 to rotate counterclockwise, so that the rope chain A12 on the storage plate A of the drive rod A10 and the drive rod B18 is unwound, so that the tension of the grout discharge pipe 7 is released. Then, the spring 20 inside the grout discharge pipe 7 drives the sealing plate 22 to move downward, so that the sealing plate 22 blocks the grout discharge hole 6 on the grout discharge pipe 7, preventing the slurry remaining in the grout discharge pipe 7 from flowing out.

[0046] After grouting is completed in grouting pipe 3, servo motor 1 drives drive rod B18 to rotate counterclockwise under the action of external controller. Then, gear B13 outside drive rod B18 drives gear A9 inside synchronous belt 8 to rotate. Gear A9 drives drive rod A10 to rotate counterclockwise, causing the storage plate B of drive rod A10 and drive rod B18 to rotate. Rope chain B16 outside storage plate B is unwound. Then, the ring frame 4 at one end of rope chain B16 moves outside grouting pipe 3, which facilitates the cleaning of residual mud outside grouting pipe 3.

[0047] In the initial state, there is a distance between the ring frame 4 and the outer frame 2. When the rope chain A12 drives the closed plate 22 to move upward, the rope chain B16 simultaneously drives the ring frame 4 to move upward.

[0048] The servo motor 1 is controlled by an external controller to adjust its speed, thereby controlling the rotation of drive rod A10 and drive rod B18.

[0049] When the sealing plate 22 moves inside the slurry discharge pipe 7, the rubber plug 23 fixed by the screws on the outside of the sealing plate 22 increases the sealing between the sealing plate 22 and the slurry discharge pipe 7, preventing slurry from overflowing to the upper part of the sealing plate 22.

[0050] When the servo motor 1 drives the drive rod B18 to rotate, the drive rod B18 rotates in the bushing 14 inside the outer frame 2. There are two sets of bushings 14, which are located outside the drive rod A10 and the drive rod B18 respectively, to improve the stability of the rotation of the drive rod A10 and the drive rod B18.

[0051] When the ring frame 4 outside the grouting pipe 3 moves downward, the ring plate 5 outside the grouting pipe 3 limits the ring frame 4 to prevent the ring frame 4 from falling off the grouting pipe 3.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressurized grouting device for a building pile foundation, characterized by, The utility model provides a mud discharging device for building pile foundation, including pressure grouting pipe (3), the bottom end bolt connection of pressure grouting pipe (3) is into the building pile foundation in the mud discharging pipe (7), the surface of mud discharging pipe (7) is equipped with the mud discharging hole (6) of mud discharging, the inside sliding connection of mud discharging pipe (7) is closed to the mud discharging hole (6) closing plate (22), closing plate (22) one side screw fixed with the rope chain A (12) of driving closing plate (22) moves, the rope chain A (12) outside sleeve connection makes closing plate (22) reset spring (20), pressure grouting pipe (3) outside bolt connection has the outer frame (2), and outer frame (2) outside bolt connection has the servo motor (1) of power supply, the power output of servo motor (1) key connection has the drive rod B (18), and drive rod B (18) outside sleeve connection has the take -up A (15) and take -up B (17), take -up A (15) outside winding has the rope chain A (12), take -up B (17) outside winding has the rope chain B (16), and the rope chain B (16) far from take -up B (17) one end screw fixed with ring frame (4), drive rod B (18) outside sleeve connection has the gear B (13), and gear B (13) outside engagement connection has synchronous belt (8), the synchronous belt (8) inside far from gear B (13) one end engagement connection has the gear A (9), and gear A (9) inside card has drive rod A (10), the inside of mud discharging pipe (7) is equipped with the limiting groove (21), and the limiting groove (21) inside sliding connection has with the limiting block (19) of closing plate (22) connection, the inside rotation of outer frame (2) is connected with the pulley (11) of making rope chain A (12) moves stable.

2. A pressurized slurry device for building pile foundation according to claim 1, characterized in that, The outside sleeve connection of closing plate (22) avoids the rubber plug (23) of mud overflow.

3. The grouting device for building pile foundation according to claim 1, characterized in that, The inside card of outer frame (2) has the shaft sleeve (14) of making drive rod B (18) rotation stable.

4. The grouting device for building pile foundation according to claim 1, characterized in that, The outside bottom end welding of pressure grouting pipe (3) has the ring plate (5) of ring frame (4) limiting.

5. The grouting device for building pile foundation according to claim 1, characterized in that, The input of servo motor (1) is electrically connected with the power supply end of external power supply.

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