Pavement repairing grouting device
By incorporating a multi-layered structure and ball bearing design into the grout guide pipe, the problem of grout temperature drop is solved, ensuring grout fluidity and grouting effect, and protecting the grout guide pipe and grouting pipe from damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-07
AI Technical Summary
The temperature of the grout drops in the grouting pipe and injection pipe, resulting in poor fluidity and affecting the repair effect.
A multi-layered grouting pipe was designed, including a protective surface layer, a wear-resistant layer, a support layer, and an insulation layer. Aluminum foil insulation cotton material was used, combined with a ball bearing structure to improve the wear resistance and insulation effect of the grouting pipe. A protective structure was provided on the outside of the grouting pipe for rigid support.
It effectively maintains the temperature of the grout, improves its fluidity, ensures the grouting effect, and prevents damage to the grouting pipe and the grouting tube during use.
Smart Images

Figure CN224092292U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road engineering technical field, specifically point to a kind of road surface repair grouting device. BACKGROUND
[0002] Grouting method is a common method for treating road pavement void and subsidence, and has a wide application in the treatment of cement concrete pavement void. The main link of the method is to seal the void cement slab cracks found in the survey and drill holes in the shape of plum blossom, and then press the cement slurry with certain formula into the void or defect between the panel and base layer by grouting equipment to achieve reinforcement and enrichment.
[0003] The grouting material is usually composed of cement, water and additives, and its ratio and performance can be adjusted according to the soil quality, grouting depth and reinforcement purpose. During the operation, the grouting is carried out by the airborne or hand-push grouting machine, and the slurry enters the grouting pipe through the grouting pipe, and is sprayed out by the grouting head inserted into the ground for grouting. In this process, since the grouting pipe is relatively long, especially in the airborne grouting mode, the temperature of the slurry has dropped when it enters the grouting pipe again through the grouting pipe, and it drops rapidly in cold weather, which makes the flowability of the slurry poor, affecting the flow and consolidation after entering the pavement gap, and thus affecting the repair effect, which needs to be improved. UTILITY MODEL CONTENT
[0004] The utility model solves the above-mentioned technical problem that the temperature of the slurry drops when it enters the grouting pipe again through the grouting pipe, and provides a road surface repair grouting device.
[0005] To solve the above technical problems, the utility model provides the technical scheme that a road surface repair grouting device comprises a base, four universal moving wheels are arranged at the four corners of the bottom of the base, a control box, an air compressor and a grouting machine are arranged on the base; the grouting machine and the air compressor are electrically connected to the control box through wires; a grouting pipe is communicated with one side of the grouting machine, a grouting pipe is communicated with one end of the grouting pipe away from the grouting machine, and a spray head is arranged at the end of the grouting pipe away from the grouting pipe; a plurality of protection structures are arranged on the outer side of the grouting pipe.
[0006] The grouting pipe comprises a protection surface layer, a wear-resistant layer, a support layer, a heat preservation layer and an inner layer from outside to inside; the wear-resistant layer comprises a middle pipe, a plurality of round holes are formed in the middle pipe, and a plurality of balls are rotatably arranged in the round holes; the support layer, the heat preservation layer and the inner layer are connected by adhesion.
[0007] Further, a frame is arranged on the top of the control box, and the grouting machine is arranged on the top of the frame.
[0008] Further, a water inlet and a material inlet are arranged on the top of the grouting machine, and a mixing assembly is arranged in the grouting machine.
[0009] Further, the protection structure comprises symmetrical protection rings arranged outside the grouting pipe, and metal arc-shaped plates are arranged between the protection rings, and anti-skid lines are arranged outside the metal arc-shaped plates.
[0010] Further, the outer side of the ball is tangent to the protection surface layer and the support layer.
[0011] Further, the heat preservation layer is made of aluminum foil heat preservation cotton material.
[0012] The utility model has the advantages that compared with the prior art, the utility model has the advantages that:
[0013] The multi-layer structure is arranged for the grouting pipe to preserve heat, so that the heat loss of the slurry is reduced when the slurry flows through the grouting pipe, and the rapid cooling of the slurry is avoided, and the fluidity and the grouting effect are affected.
[0014] The protection structure is arranged for the grouting pipe, so that the grouting pipe is rigidly supported when being inserted into the ground, and is not easily damaged and deformed. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structural schematic diagram of the utility model.
[0016] Figure 2 is the protection structure schematic diagram of the utility model.
[0017] Figure 3 is the grouting pipe cross section structure schematic diagram of the utility model.
[0018] Figure 4 is the intermediate pipe structure schematic diagram of the utility model.
[0019] Figure 5 is the grouting pipe longitudinal section schematic diagram of the utility model.
[0020] As shown in the figure: 1, base, 2, universal mobile wheel, 3, control box, 4, air compressor, 5, grouting machine, 6, frame, 7, water inlet, 8, feed inlet, 9, grouting pipe, 10, grouting pipe, 11, nozzle, 12, protection ring, 13, metal arc-shaped plate, 14, protection surface layer, 15, support layer, 16, heat preservation layer, 17, inner layer, 18, intermediate pipe, 19, round hole, 20, ball. DETAILED DESCRIPTION
[0021] The utility model will be further explained in detail in combination with the drawings.
[0022] Example one, in combination with the drawings Figure 1 A road surface repairing grouting device, comprising a base 1, universal mobile wheels 2 are arranged at the four corners of the lower surface of the base 1; the base 1 and the components above can be moved to any position for grouting by the universal mobile wheels 2.
[0023] In combination with the drawings Figure 1 , the base 1 is provided with a control box 3, an air compressor 4 and a grouting machine 5; the grouting machine 5 and the air compressor 4 are electrically connected with the control box 3 through wires, the start and stop of the air compressor 4 and the grouting machine 5 can be controlled through the control box 3, the slurry can be sprayed out from the nozzle through the air compressor 4; the control box 3 is provided with a frame 6 on the upper surface, the grouting machine 5 is located on the upper surface of the frame 6, the longitudinal space is saved, the volume of the overall device is reduced, and the use is facilitated.
[0024] In combination with the drawings Figure 1 , the grouting machine 5 is provided with a water inlet 7 and a feed inlet 8 on the upper surface; the grouting machine 5 is provided with a mixing assembly inside, which can add and stir each raw material, and the internal space of the grouting machine 5 is cylindrical, facilitating stirring.
[0025] In combination with the drawings Figure 1 , 2 , the grouting machine 5 is provided with a grout guide pipe 9 on one side, the grout guide pipe 9 is provided with a grouting pipe 10 on the end away from the grouting machine 5, and the grouting pipe 10 is provided with a nozzle 11 on the end away from the grout guide pipe 9, which can complete normal grouting work.
[0026] In combination with the drawings Figure 1 , 2 , the grouting pipe 10 is provided with a plurality of protective structures on the outer side; the protective structure includes symmetrical protective rings 12 provided on the outer side of the grouting pipe 10, and a metal arc plate 13 is connected between the protective rings 12, and the outer side of the metal arc plate 13 is provided with anti-skid lines; the protective structure provided for the grouting pipe 10 can provide rigid support for the grouting pipe 10 when inserted into the ground, and is not easy to be damaged and deformed.
[0027] In combination with the drawings Figures 3-5 , the grout guide pipe 9 comprises, from the outside to the inside, a protective surface layer 14, a wear-resistant layer, a support layer 15, a heat preservation layer 16 and an inner layer 17, and the heat preservation layer 16 is made of aluminum foil heat preservation cotton material. The above structure improves the overall wear resistance and heat preservation effect of the grout guide pipe 9.
[0028] In combination with the drawings Figures 3-5 , the wear-resistant layer comprises a middle pipe 18, a plurality of round holes 19 are formed in the middle pipe 18, a rolling ball 20 is rotatably arranged in each round hole 19, and the outer side of the rolling ball 20 is tangent to the protective surface layer 14 and the support layer 15, so that the protective surface layer 14 and the support layer 15 can be relatively displaced, thereby avoiding cracking caused by bending and twisting during use; the support layer 15, the heat preservation layer 16 and the inner layer 17 are adhesively connected, improving the firmness.
[0029] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A road surface repair grouting device, characterized in that: The system includes a base (1), with omnidirectional casters (2) at each of the four corners of the base (1). A control box (3), an air compressor (4), and a grouting machine (5) are mounted on the base (1). The grouting machine (5) and the air compressor (4) are electrically connected to the control box (3) via wires. A grout guide pipe (9) is connected to one side of the grouting machine (5), and a grouting pipe (10) is connected to the end of the grout guide pipe (9) away from the grouting machine (5). A nozzle (11) is mounted on the end of the grouting pipe (10) away from the grout guide pipe (9). Several protective structures are provided on the outside of the grouting pipe (10). The grout guide pipe (9) includes, from the outside to the inside, a protective surface layer (14), a wear-resistant layer, a support layer (15), a heat insulation layer (16), and an inner layer (17); the wear-resistant layer includes an intermediate pipe (18), on which a plurality of round holes (19) are opened, and each round hole (19) is provided with a rotating ball (20); the support layer (15), the heat insulation layer (16), and the inner layer (17) are bonded together with adhesive.
2. The road repair grouting device according to claim 1, characterized in that: The control box (3) is equipped with a frame (6), and the grouting machine (5) is located on the frame (6).
3. The road repair grouting device according to claim 1, characterized in that: The grouting machine (5) is provided with a water inlet (7) and a feed inlet (8); the grouting machine (5) is provided with a mixing component.
4. A road repair grouting device according to claim 1, characterized in that: The protective structure includes symmetrical protective rings (12) on the outside of the grouting pipe (10), and a metal arc plate (13) is connected between the protective rings (12). The metal arc plate (13) has anti-slip texture on the outside.
5. A road repair grouting device according to claim 1, characterized in that: The outer side of the ball (20) is tangent to the protective surface layer (14) and the support layer (15), respectively.
6. A road repair grouting device according to claim 1, characterized in that: The insulation layer (16) is made of aluminum foil insulation cotton material.