Grouting equipment for foundation reinforcement
By combining a screw conveyor pump and a grouting sealer, and utilizing the design of an air-supplied airbag to seal the airbag, the problem of grout overflow was solved, achieving accurate grout injection and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-31
AI Technical Summary
Existing foundation reinforcement grouting equipment cannot ensure that the grout is accurately injected into the target soil layer and prevent overflow, resulting in material waste and environmental pollution.
A screw conveyor pump and a grouting sealer are used. The air supply airbag is inflated to seal the grout, ensuring that the grout is injected into the target soil layer as designed, while preventing overflow.
It enables accurate injection of slurry and prevents overflow, reducing material waste and environmental pollution.
Smart Images

Figure CN224063397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a grouting device, and more particularly to a grouting device for foundation reinforcement. Background Technology
[0002] Grouting equipment for foundation reinforcement is an important tool used to improve the stability and bearing capacity of soil or rock, and is widely used in the construction of infrastructure such as buildings, bridges, and roads. The main function of this type of equipment is to inject specific grouts (such as cement grout, chemical grout, etc.) into the foundation soil layer to fill voids, increase soil density and strength, and improve its mechanical properties.
[0003] The sealing operation during grouting is mainly to ensure that the grout can be accurately injected into the target soil layer or structure according to the predetermined design requirements, while preventing grout overflow that would cause material waste and environmental pollution. Utility Model Content
[0004] The purpose of this invention is to provide a grouting device for foundation reinforcement to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grouting device for foundation reinforcement, comprising a grouting vehicle, a support, a handle, a spiral conveying pump, a conveying pipe, and a grouting sealer. The support is installed at the bottom of the grouting vehicle, the handle is installed at the rear end of the grouting vehicle, the spiral conveying pump is installed inside the grouting vehicle, the top end of the conveying pipe is connected to the spiral conveying pump, and the grouting sealer is installed at the bottom of the conveying pipe.
[0006] Based on the above technical solution, the grouting and sealing device includes an interface, a grouting pipe, a grouting port, a sealing pipe, a limiting plate, an air supply bladder, a channel, a sealing bladder, threads, and a threaded pressure plate. The interface is installed at the top of the grouting pipe, and the grouting pipe is connected to the bottom of the delivery pipe through the interface. The grouting port is located at the bottom of the grouting pipe. The sealing pipe is fixed to the upper middle part of the side end of the grouting pipe. The limiting plate is installed at the top of the side end of the sealing pipe. The air supply bladder is installed at the bottom end of the limiting plate. The channel is opened inside the sealing pipe, and the top of the channel is connected to the air supply bladder. The sealing bladder is installed at the bottom of the side end of the sealing pipe, and the bottom of the channel is connected to the sealing bladder. The threads are distributed on the upper part of the side end of the sealing pipe. The threaded pressure plate is connected to the sealing pipe through the threads, and the threaded pressure plate corresponds to the air supply bladder.
[0007] Based on the above technical solution, the threaded pressure plate presses up the air supply airbag to inflate and seal the airbag.
[0008] Compared with the prior art, the present invention has the following advantages: The present invention uses a spiral conveying pump to transport grout in the grouting truck, and uses a grouting sealing device to inject grout while the air supply airbag inflates to seal the grout, ensuring that the grout can be accurately injected into the target soil layer or structure according to the predetermined design requirements, while preventing grout overflow that would cause material waste and environmental pollution. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.
[0010] Figure 2 This is a schematic diagram of the external structure of the grouting and sealing device of this utility model.
[0011] Figure 3 This is a schematic diagram of the sealing state of the grouting sealer of this utility model.
[0012] Figure 4 This is a cross-sectional view of the grouting and sealing device of this utility model.
[0013] In the diagram: 1. Grouting truck, 2. Support frame, 3. Handlebar, 4. Screw conveyor pump, 5. Conveying pipe, 6. Grouting sealer, 7. Interface, 8. Grouting pipe, 9. Grouting port, 10. Sealing pipe, 11. Limiting plate, 12. Air supply bladder, 13. Channel, 14. Sealing bladder, 15. Thread, 16. Threaded pressure plate. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figures 1 to 4 As shown, a grouting device for foundation reinforcement includes a grouting vehicle 1, a support 2, a handlebar 3, a spiral conveying pump 4, a conveying pipe 5, and a grouting sealer 6. The support 2 is installed at the bottom of the grouting vehicle 1, the handlebar 3 is installed at the rear end of the grouting vehicle 1, the spiral conveying pump 4 is installed inside the grouting vehicle 1, the top end of the conveying pipe 5 is connected to the spiral conveying pump 4, and the grouting sealer 6 is installed at the bottom of the conveying pipe 5.
[0016] The grouting sealing device 6 includes an interface 7, a grouting pipe 8, a grouting port 9, a sealing pipe 10, a limiting plate 11, an air supply bladder 12, a channel 13, a sealing bladder 14, a thread 15, and a threaded pressure plate 16. The interface 7 is installed on the top of the grouting pipe 8, and the grouting pipe 8 is connected to the bottom of the delivery pipe 5 through the interface 7. The grouting port 9 is located at the bottom of the grouting pipe 8. The sealing pipe 10 is fixed to the upper middle part of the side end of the grouting pipe 8. The limiting plate 11 is installed on the side of the sealing pipe 10. At the top end, the air supply airbag 12 is installed at the bottom end of the limiting plate 11. The channel 13 is opened inside the sealing tube 10, and the top of the channel 13 is connected to the air supply airbag 12. The sealing airbag 14 is installed at the bottom of the side end of the sealing tube 10, and the bottom of the channel 13 is connected to the sealing airbag 14. The threads 15 are distributed on the upper part of the side end of the sealing tube 10. The threaded pressure plate 16 is threadedly connected to the sealing tube 10 through the threads 15, and the threaded pressure plate 16 corresponds to the air supply airbag 12.
[0017] The threaded pressure plate 16 presses down on the air supply airbag 12, causing it to bulge and seal the airbag 14.
[0018] The working principle of this utility model is as follows: The grouting sealing device 6 is inserted into the drill hole, and the rotating spiral pressure plate 16 presses the air supply bladder 12. The gas in the air supply bladder 12 is squeezed and enters the sealing bladder 14 through the channel 13. The sealing bladder 14 bulges in the drill hole and automatically fills to seal the hole. The grout prepared in the grouting truck 1 is pumped out to the delivery pipe 5 by the spiral delivery pump 4 and pumped out through the grouting port 9. The bulging sealing bladder 14 ensures that the grout can be accurately injected into the target soil layer or structure according to the predetermined design requirements, while preventing the grout from overflowing and causing material waste and environmental pollution.
[0019] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.
Claims
1. A ground reinforcement grouting apparatus comprising a grouting vehicle (1), a support (2), a handle (3), a screw conveyance pump (4), a conveyance pipe (5), a grouting seal (6), characterized in that: The grouting vehicle (1) is provided with a support (2) at the bottom end, a handle (3) is installed at the rear end of the grouting vehicle (1), a screw conveying pump (4) is installed inside the grouting vehicle (1), a conveying pipe (5) is connected to the top of the screw conveying pump (4), and a grouting sealing device (6) is installed at the bottom of the conveying pipe (5).
2. A ground reinforcement grouting apparatus according to claim 1, wherein: The grouting sealing device (6) comprises a connector (7), a grouting pipe (8), a grouting port (9), a sealing pipe (10), a limiting plate (11), a gas supply air bag (12), a channel (13), a blocking air bag (14), a screw thread (15), and a screw thread pressing plate (16). The connector (7) is installed at the top of the grouting pipe (8), and the grouting pipe (8) is connected to the bottom of the conveying pipe (5) through the connector (7). The grouting port (9) is arranged at the bottom of the grouting pipe (8). The sealing pipe (10) is fixed to the upper middle part of the side end of the grouting pipe (8). The limiting plate (11) is installed at the top of the side end of the sealing pipe (10). The gas supply air bag (12) is installed at the bottom end of the limiting plate (11). The channel (13) is opened inside the sealing pipe (10), and the top of the channel (13) is communicated with the gas supply air bag (12). The blocking air bag (14) is installed at the bottom of the side end of the sealing pipe (10), and the bottom of the channel (13) is communicated with the blocking air bag (14). The screw thread (15) is distributed on the upper part of the side end of the sealing pipe (10). The screw thread pressing plate (16) is screw-connected to the sealing pipe (10) through the screw thread (15), and the screw thread pressing plate (16) corresponds to the gas supply air bag (12).
3. A ground reinforcement grouting apparatus according to claim 2, wherein: The screw thread pressing plate (16) presses the gas supply air bag (12) to bulge and seal the blocking air bag (14).