Low-pressure micro-hole grouting machine

By designing a low-pressure micro-hole grouting machine, the problem of traditional equipment being unable to cover tiny gaps and damage structures has been solved. It enables flexible switching of grouting modes and precise pressure adjustment, improving waterproofing effect and operational safety, and meeting the construction needs of bathrooms.

CN224432087UActive Publication Date: 2026-06-30HENAN YANBING WATERPROOF TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YANBING WATERPROOF TECH CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional waterproofing materials are difficult to completely cover tiny gaps, high-pressure grouting equipment may damage the weak structure of the bathroom, the grouting ratio and pressure are difficult to adjust, the equipment is large and inconvenient to operate, and it is impossible to flexibly switch grouting modes, which affects the waterproofing effect.

Method used

A low-pressure micro-hole grouting machine was designed, including an outer casing and an inner casing. It is equipped with a power connector, switch, speed display, pressure gauge, feed pipe, discharge pipe, water pump and heat dissipation holes. It has the functions of flexibly switching grouting modes and accurately adjusting pressure. A check valve is used to prevent grout backflow and the working pressure is controlled within a safe range.

Benefits of technology

It enables precise adjustment of grouting ratio and pressure according to the waterproofing needs of different parts of the bathroom, avoiding structural damage, improving filling fullness, ensuring grouting effect, avoiding safety hazards, adapting to humid environments, and meeting construction needs.

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    Figure CN224432087U_ABST
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Abstract

This utility model discloses a low-pressure micro-hole grouting machine, relating to the technical field of grouting machines. Specifically, it is a low-pressure micro-hole grouting machine, comprising an outer casing and an inner casing. The top of the inner casing is equipped with a power connector, a switch, a speed display, a pressure gauge, an inlet pipe, and an outlet pipe. A water pump is placed on the inner wall of the inner casing, with a first connecting pipe at one end of the pump. A tee is fitted to the end of the first connecting pipe, and a second connecting pipe is located at the bottom of the pressure gauge. This low-pressure micro-hole grouting machine allows for flexible switching of modes based on the waterproofing needs of different areas in the bathroom (such as crack width and seepage volume), precise adjustment of the grouting ratio and pressure, improved filling fullness, prevention of damage to floor tiles, a check valve to prevent grout backflow, and ensured grouting effect. The working pressure is controlled within a safe low-pressure range to avoid safety hazards caused by high pressure, while ensuring a stable grouting process, thus improving practicality.
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Description

Technical Field

[0001] This utility model relates to the field of grouting machine technology, specifically a low-pressure micro-hole grouting machine. Background Technology

[0002] Bathrooms are constantly exposed to damp environments, and areas such as floors and corners are prone to developing micro-cracks due to structural settlement and temperature variations. Traditional waterproofing materials (such as waterproof coatings and waterproof membranes) are often unable to completely cover these tiny gaps, leading to a higher risk of leakage. Traditional high-pressure grouting equipment operates at high pressures, which may damage weak structures in bathrooms (such as tile adhesive layers and lightweight walls), and could even cause secondary damage such as pipe ruptures and structural cracks.

[0003] Traditional equipment struggles to precisely adjust the grouting ratio and pressure, easily leading to grout waste or insufficient filling. This is especially problematic when treating microporous cracks, where high-pressure grout may bypass the cracks and seep directly into surrounding areas, compromising waterproofing effectiveness. Traditional equipment often uses a fixed single-component or dual-component grouting mode, unable to flexibly switch modes according to the waterproofing needs of different areas in the bathroom (such as crack width and seepage volume). Furthermore, the equipment is bulky and inconvenient to operate in confined spaces. This invention, a low-pressure microporous grouting machine, solves these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a low-pressure micro-hole grouting machine, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a low-pressure micro-hole grouting machine, comprising an outer casing and an inner casing. The top of the inner casing is respectively provided with a power connector, a switch, a speed display, a pressure gauge, a feed pipe, and a discharge pipe. A water pump is placed on the inner wall of the inner casing. A first connecting pipe is provided at one end of the water pump, and a tee is sleeved at the end of the first connecting pipe. A second connecting pipe is provided at the bottom of the pressure gauge. A check valve is provided inside the feed pipe. Heat dissipation holes are provided on both sides of the outer casing, and a second heat dissipation hole is provided at the bottom of the inner casing.

[0008] Optionally, the end of the feed pipe is connected to the water pump flange, and the second connecting pipe and the discharge pipe are both connected to a tee. There are two switches, two speed display gauges, two pressure gauges, two feed pipes, two discharge pipes, and two water pumps.

[0009] Optionally, the length, width, and height of the inner box are all smaller than the length, width, and height of the outer box, and the inner box is located inside the outer box.

[0010] Optionally, a cover is hinged to the rear of the outer casing, and the switch is electrically connected to the speed display via a power cord.

[0011] Optionally, there may be several first heat dissipation holes, which may be arranged in a ring array.

[0012] Optionally, the feed pipe is located to the left of the switch position, the switch position is located to the left of the speed control display position, the speed control display position is located to the left of the pressure gauge position, and the pressure gauge position is located to the left of the discharge pipe position.

[0013] This utility model provides a low-pressure micro-hole grouting machine, which has the following beneficial effects:

[0014] 1. This low-pressure micro-hole grouting machine, through the configuration of a power connector, switch, speed display, pressure gauge, feed pipe, discharge pipe, water pump, first connecting pipe, tee, second connecting pipe, check valve, and heat dissipation holes, allows for flexible switching of modes according to the waterproofing needs of different parts of the bathroom (such as crack width and seepage volume). It precisely adjusts the grouting ratio and pressure to improve filling fullness, avoid damage to floor tiles, prevent grout backflow, ensure grouting effect, and control the working pressure within a safe low-pressure range to avoid safety hazards caused by high pressure. Simultaneously, it ensures a stable grouting process, thus improving practicality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view sectional diagram of the present invention.

[0017] Figure 3 This is a structural schematic diagram of the present invention in frontal cross-section;

[0018] Figure 4 This is a side view sectional diagram of the present invention.

[0019] In the diagram: 1. Outer casing; 2. Inner casing; 3. Power connector; 4. Switch; 5. Speed ​​indicator; 6. Pressure gauge; 7. Feed pipe; 8. Discharge pipe; 9. Water pump; 10. First connecting pipe; 11. T-junction; 12. Second connecting pipe; 13. Check valve; 14. First heat dissipation hole; 15. Second heat dissipation hole; 16. Cover. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a low-pressure micro-hole grouting machine, including an outer casing 1 and an inner casing 2. The top of the inner casing 2 is respectively provided with a power connector 3, a switch 4, a speed display 5, a pressure gauge 6, a feed pipe 7, and a discharge pipe 8. A water pump 9 is placed on the inner wall of the inner casing 2. A first connecting pipe 10 is provided at one end of the water pump 9. A tee 11 is sleeved at the end of the first connecting pipe 10. A second connecting pipe 12 is provided at the bottom of the pressure gauge 6. A check valve 13 is provided inside the feed pipe 7. A first heat dissipation hole 14 is provided on both sides of the outer casing 1, and a second heat dissipation hole 15 is provided at the bottom of the inner casing 2.

[0023] Specifically, the single-liquid grouting and double-liquid grouting modes can be flexibly switched according to construction requirements. The grouting pressure is clearly and accurately displayed, which is convenient for operators to monitor in real time. The pressure is controlled within a safe low pressure range to avoid safety hazards caused by high pressure, while ensuring the stability of the grouting process.

[0024] Please see Figures 1 to 3 The end of the feed pipe 7 is connected to the flange of the water pump 9. The second connecting pipe 12 and the discharge pipe 8 are both connected to the tee 11. There are two of each of the following: switch 4, speed display 5, pressure gauge 6, feed pipe 7, discharge pipe 8, and water pump 9.

[0025] Specifically, it facilitates the storage of the inner box 2 inside the outer box 1, with the outer box 1 serving to protect the inner box 2.

[0026] Please see Figures 1 to 4 The length, width, and height of the inner box 2 are all smaller than the length, width, and height of the outer box 1, and the inner box 2 is located inside the outer box 1.

[0027] Specifically, the cover 16 facilitates the closure of the outer casing 1, and the anti-vibration pressure gauge 6 clearly and accurately displays the grouting pressure, making it easy for operators to monitor in real time.

[0028] Please see Figures 1 to 3 The outer casing 1 has a cover 16 hinged to the rear by a hinge, and the switch 4 is electrically connected to the speed display 5 via a power cord.

[0029] Specifically, the first heat dissipation hole 14 facilitates air circulation, thereby facilitating heat dissipation.

[0030] Please see Figures 1 to 2 There are several first heat dissipation holes 14, and these several first heat dissipation holes 14 are arranged in a ring array.

[0031] Specifically, the feed pipe 7, switch 4, speed display 5, pressure gauge 6, and discharge pipe 8 are arranged from left to right, making it easy to clearly see the position of each component.

[0032] Please see Figures 2 to 3 The feed pipe 7 is located to the left of the switch 4. The switch 4 is located to the left of the speed control display 5. The speed control display 5 is located to the left of the pressure gauge 6. The pressure gauge 6 is located to the left of the discharge pipe 8.

[0033] When in use, for common bathroom problems such as tile grout leakage and water seepage at pipe roots, the low-pressure micro-hole grouting machine can directly inject grout into the leakage source through micro-hole grouting, without removing tiles, quickly blocking the seepage channel. Check that all pipe connections are secure, valves are in the correct position, and power supply is normal. Prepare single-component or double-component grout according to the design ratio and pour it into the corresponding material bucket. Set parameters such as grouting ratio, grouting pressure, and motor speed according to construction requirements. Turn on the power switch 4 to start the grouting machine and observe whether the equipment is operating normally. Connect the grouting pipe to the discharge pipe 8, insert the grouting pipe into the grouting hole, and start grouting. Pay attention to the changes in pressure gauge 6. After grouting is completed, first turn off the grouting machine, then turn off the power. Clean the equipment and pipes. The water pump 9 draws grout through the feed pipe 7. The check valve 13 is set to prevent the drawn grout from flowing back. The grout reaches the tee 11 through the first connecting pipe 10, and then... The grout is discharged at outlet pipe 8. Pressure gauge 6 is connected to tee 11 via second connecting pipe 12 for easy pressure monitoring. Switch 4 is connected to speed display 5 via power cord for easy adjustment and viewing of grouting pressure. Single-liquid and double-liquid grouting modes can be flexibly switched according to construction requirements. Equipped with anti-vibration pressure gauge 6, it clearly and accurately displays grouting pressure for real-time monitoring by operators. Connected to a pressure control system, grouting automatically stops when the set pressure is reached and automatically restarts when the pressure drops. The motor speed can be adjusted according to grouting volume and pressure requirements, keeping the working pressure within a safe low-pressure range to avoid safety hazards from high pressure and ensure stable grouting process. Key components are made of waterproof and corrosion-resistant materials and reinforced to extend equipment lifespan. Heat dissipation is facilitated through first and second heat dissipation holes 14 and 15. The cover 16 allows for easy opening and closing. The equipment features "low-pressure safe and stable operation," "boat-shaped switch drainage," and "waterproof and corrosion-resistant components," making it suitable for humid and watery environments like bathrooms, preventing equipment corrosion and operational safety risks, and meeting on-site construction needs.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-pressure micro-hole grouting machine, comprising an outer casing and an inner casing, characterized in that: The top of the inner chamber is equipped with a power connector, switch, speed display, pressure gauge, feed pipe, and discharge pipe. A water pump is placed on the inner wall of the inner chamber. One end of the water pump is connected to a first connecting pipe, and a tee is fitted to the end of the first connecting pipe. A second connecting pipe is installed at the bottom of the pressure gauge. A check valve is installed inside the feed pipe. First heat dissipation holes are opened on both sides of the outer chamber, and second heat dissipation holes are opened at the bottom of the inner chamber.

2. The low-pressure micro-hole grouting machine according to claim 1, characterized in that: The end of the feed pipe is connected to the water pump flange, and the second connecting pipe and the discharge pipe are both connected to the tee. There are two switches, two speed display gauges, two pressure gauges, two feed pipes, two discharge pipes, and two water pumps.

3. The low-pressure micro-hole grouting machine according to claim 1, characterized in that: The length, width, and height of the inner box are all smaller than those of the outer box, and the inner box is located inside the outer box.

4. The low-pressure micro-hole grouting machine according to claim 1, characterized in that: The rear of the outer casing is hinged with a cover, and the switch is electrically connected to the speed display via a power cord.

5. The low-pressure micro-hole grouting machine according to claim 1, characterized in that: There are several first heat dissipation holes, and these first heat dissipation holes are arranged in a ring array.

6. The low-pressure micro-hole grouting machine according to claim 1, characterized in that: The feed pipe is located to the left of the switch position, the switch position is located to the left of the speed control display position, the speed control display position is located to the left of the pressure gauge position, and the pressure gauge position is located to the left of the discharge pipe position.