Grouting machine

Abstract

The invention discloses a grouting machine which is characterized in that a sliding block is fixedly sleeved outside a short grout inlet pipe of a grouting gun, a connecting rod with a locking piece is arranged at the bottom of a grouting pipe, and the sliding block is in sliding connection with the connecting rod and is fixed and limited through the locking piece; the block switch is arranged between the grouting pipe and the short grout inlet pipe and is kept connected with the grouting pipe and the short grout inlet pipe, the peripheral side of the block switch is fixed to the inner wall of the elastic rubber pipe, and when the sliding block drives the short grout inlet pipe to move towards the grouting pipe, the conical tip of the block switch opens outwards, and the grouting amount is increased; a bulge is laterally arranged on an inner pipe of the grouting control pipe, and a sliding groove for accommodating the bulge is laterally formed in an outer pipe of the grouting control pipe; one end of the outer pipe is vertically welded with the grouting pipe, and the other end is connected with the grouting extension pipe through a bolt; one end of the inner pipe is arranged in the grouting pipe and is provided with a rubber grout inlet, when the protrusion moves in the direction close to the grouting pipe, the grouting amount is reduced, and when the rubber grout inlet abuts against the grouting pipe, grouting is stopped. The grouting device can provide stable grouting pressure and high-precision grouting amount, and is easy to disassemble, clean and replace parts.

Description

Technical Field

[0001] The invention belongs to the technical field of grouting equipment, and in particular relates to a grouting machine which has the function of adjusting grouting pressure and grouting amount. Background Art

[0002] A grouting machine is a device that delivers grouting material under pressure. It primarily consists of an air pump, a steel drum, a pressure regulating valve, and a grouting gun. The grouting machine features a simple structural design, easily replaceable components, and convenient maintenance. Compared to traditional grouting equipment, this grouting machine is not only easy to operate but also features precise adjustment of grouting pressure and flow rate. During use, the grouting machine can accommodate a wide range of grouting materials, including cement-based, geopolymer-based, and other materials, demonstrating excellent adaptability. Furthermore, its optimized pressure regulation mechanism enables it to meet diverse construction requirements, from low-pressure penetration grouting to high-pressure reinforcement grouting, effectively improving grouting efficiency and quality. Furthermore, the grouting machine's design facilitates disassembly and cleaning, enabling quick replacement of damaged parts and significantly extending its service life. Its wear-resistant and corrosion-resistant materials ensure long-term, stable operation in a variety of complex engineering environments. Therefore, this grouting machine is widely used in foundation reinforcement, tunnel construction, ground treatment, and rock and soil anchoring, providing crucial support for efficient and precise grouting operations.

[0003] Despite their significant advantages in ease of construction and pressure control, grouting machines still face limitations in their scope of application and efficiency. Existing grouting machines, in practice, struggle to meet the demands of precise grouting or rapid construction under demanding engineering conditions due to unstable pumping system pressure and insufficient flow control precision. Furthermore, grouting machine performance is significantly constrained not only by the design and material selection of the equipment itself but also by factors such as the slurry type, viscosity variations, and temperature in the construction environment. These limitations not only reduce grouting efficiency but can also lead to slurry blockages, increased equipment wear, and other issues during construction, increasing maintenance and replacement costs. Particularly in complex engineering environments, such as deep foundation reinforcement or geotechnical engineering, where high-strength conditions are required, the performance of conventional grouting machines can be insufficient, easily impacting project quality and construction progress. Therefore, there remains ample room for improvement in the optimized design of grouting machine performance, particularly in terms of pressure stability, precise flow control, and adaptability to multiple scenarios.

[0004] Currently, research on grouting machine performance, both domestically and internationally, focuses on preventing blockages and improving slurry stability. By optimizing the pumping system design, such as using a dual-cylinder pumping structure, grouting pressure stability can be effectively improved, thereby better adapting to complex construction requirements. Furthermore, technologies such as pressure sensors and flow monitoring devices are gradually being incorporated into grouting machines. These devices monitor the grouting process in real time, helping operators quickly adjust the machine's status and avoid disruptions caused by slurry fluctuations or blockages.

[0005] In addition, some research has also attempted to use wear-resistant materials, such as ceramics or composite materials, to manufacture key components. This not only extends the service life of the grouting machine but also makes it more reliable when handling high-viscosity or highly corrosive slurries. Furthermore, the introduction of automatic control systems allows for more precise regulation of grouting pressure and flow, making grouting operations more efficient and labor-saving.

[0006] While these improvements have enhanced the performance of grouting machines to a certain extent, key challenges in their widespread application remain adjusting the grouting pressure and volume, as well as ease of disassembly and cleaning. Therefore, improvements in equipment structure or materials alone may not be sufficient to meet the needs of different construction scenarios. In the future, it will be necessary to further optimize the design and operation of grouting machines based on the actual conditions of construction sites to enable them to be used in more projects. Summary of the Invention

[0007] Technical problem to be solved: In response to the above technical problems, the present invention provides a grouting machine that can provide stable grouting pressure and high-precision grouting volume, and at the same time has the functions of easy disassembly, cleaning and parts replacement, which can meet the needs of fine grouting or rapid construction under high-demand engineering conditions.

[0008] Technical solution: A grouting machine includes a box body, a slurry temporary storage barrel, an air pump and a grouting gun. The slurry temporary storage barrel and the air pump are arranged in the box body, the air outlet pipeline of the air pump is connected to the air inlet of the slurry temporary storage barrel, and the slurry outlet pipeline of the slurry temporary storage barrel is connected to the slurry inlet of the grouting gun; the grouting gun includes a slurry inlet short pipe, a block switch, a grouting pipe, a grouting control pipe, a grouting extension pipe and a grouting gun muzzle in sequence along the slurry flow direction, the slurry inlet short pipe is fixedly sleeved with a slider, and a connecting rod with a locking piece is provided at the bottom of the grouting pipe. The slider is slidably connected to the connecting rod and is fixed and limited by the locking piece; the block switch is arranged between the grouting pipe and the slurry inlet short pipe and keeps them connected, and it includes multiple cone tips The downward triangular pyramid block is fixed on the inner wall of the elastic rubber tube. When the slider drives the short slurry inlet tube to move toward the grouting tube, the cone tip of the block switch opens outward and the grouting volume increases. The grouting control tube includes an inner tube and an outer tube that are connected to each other. The inner tube is provided with a protrusion on the side, and the outer tube is provided with a slide groove on the side for accommodating the protrusion. One end of the outer tube is vertically welded to the grouting tube, and the other end is connected to the grouting extension tube by bolts. One end of the inner tube is arranged in the grouting tube and is provided with a rubber slurry inlet. When the protrusion moves toward the grouting tube, the grouting volume decreases. When the rubber slurry inlet abuts against the grouting tube, the grouting stops. The grouting gun muzzle is connected to the grouting extension tube by bolts.

[0009] Preferably, the bottom of the box is provided with running wheels.

[0010] Preferably, a pressure gauge is provided at the air outlet of the air pump.

[0011] Preferably, the air pump is equipped with a motor.

[0012] Preferably, a grouting flow meter is provided at the slurry outlet of the slurry temporary storage barrel.

[0013] Preferably, the slurry temporary storage barrel is made of corrosion-resistant material, a slurry inlet is provided on the top thereof, and the slurry inlet is provided with a sealing cover and a slurry inlet valve.

[0014] Preferably, the minimum diameter of the circle where the cone tip of the block switch is located is larger than the diameter of the slurry inlet short pipe, and the maximum diameter is larger than the diameter of the grouting pipe.

[0015] Preferably, the grouting gun is further provided with a one-way valve, which is provided at the top of the grouting pipe and fixedly connected to the protrusion of the inner pipe for controlling the movement of the protrusion in the chute.

[0016] Preferably, the shapes of the grouting gun nozzle include conical, quadrangular pyramidal and pyramidal.

[0017] Preferably, the rubber slurry inlet is threadedly connected to the inner pipe.

[0018] Beneficial effects: In response to the problems of grouting pressure and grouting flow, the present invention proposes a grouting machine with the functions of stabilizing grouting pressure and adjusting flow. The grouting pressure and flow can be controlled by simply adjusting the position of the slider to change the opening and closing degree of the block switch and adjusting the position of the protrusion to change the insertion degree of the inner tube in the grouting pipe. At the same time, since it is easy and quick to install, it is also more conducive to disassembly, cleaning and convenient replacement of damaged parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the axonometric drawing of the grouting gun; Figure 2 This is a schematic diagram of the structure of the grouting gun's slurry inlet short pipe, block switch, and grouting pipe; Figure 3 It is a schematic diagram of the structure of the grouting control pipe, grouting extension pipe and grouting gun mouth of the grouting gun; Figure 4 This is the axonometric drawing of the slurry temporary storage barrel and the air pump; Figure 5 This is the axonometric drawing of the box, slurry temporary storage barrel and air pump; The numbers in the figure represent the following: 1. Box body, 2. Slurry temporary storage barrel, 3. Air pump, 4. Grouting gun, 1-1. Travel wheel, 2-1. Grouting flow meter, 2-2. Slurry inlet valve, 3-1. Pressure gauge, 3-2. Motor, 4-1. Slurry inlet short pipe, 4-2. Block switch, 4-3. Grouting pipe, 4-4. Grouting control pipe, 4-5. Grouting extension pipe, 4-6. Grouting gun muzzle, 4-7. One-way valve, 4-1-1. Slider, 4-2-1. Elastic rubber tube, 4-3-1. Connecting rod, 4-4-1. Inner tube, 4-4-2. Outer tube, 4-4-1-1. Rubber slurry inlet. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0021] like Figures 1 to 5 As shown, a grouting machine includes a box body 1, a slurry temporary storage barrel 2, an air pump 3 and a grouting gun 4.

[0022] A walking wheel 1-1 is fixed to the bottom of the box body 1, a slurry temporary storage barrel 2 and an air pump 3 are installed in the box body 1, and a single-sided door is installed on the front of the box body 1 to check the internal situation of the grouting machine.

[0023] The air pump 3 is a small air pump with controllable flow rate. A motor 3-2 is fixedly installed on its inner side, and an air pump air inlet is provided in the middle. To ensure good sealing, the air outlet of the air pump 3 is threadedly connected to the air inlet on the upper part of the slurry storage barrel 2 through a high-pressure hose, and a pressure gauge 3-1 is provided on the pipeline.

[0024] The temporary slurry storage barrel 2 is made of corrosion-resistant metal, a small steel barrel in this embodiment. It has a slurry inlet at the top, equipped with a sealing cover and a slurry inlet valve 2-2. The slurry outlet at the bottom of the temporary slurry storage barrel 2 is equipped with a sealing ring. The outlet pipe is connected to the slurry inlet of the grouting gun 4, and the pipe is equipped with a grouting flow meter 2-1.

[0025] The grouting gun 4 includes, along the slurry flow direction, a slurry inlet short pipe 4-1, a block switch 4-2, a grouting pipe 4-3, a grouting control pipe 4-4, a grouting extension pipe 4-5, and a grouting gun muzzle 4-6. A slider 4-1-1 is fixedly sleeved on the outside of the slurry inlet short pipe 4-1. A connecting rod 4-3-1 with a locking member is provided at the bottom of the grouting pipe 4-3. The slider 4-1-1 is slidably connected to the connecting rod 4-3-1 and fixed in position by a locking member. In this embodiment, the connecting rods 4-3-1 with locking members are four rods with nuts evenly distributed along the circumference of the grouting pipe 4-3. The block switch 4-2 is arranged between the grouting pipe 4-3 and the grouting short pipe 4-1 and keeps them connected. It includes a plurality of triangular pyramid-like blocks with downward-pointing cones, which are fixed to the inner wall of the elastic rubber tube 4-2-1 on the circumference. The minimum diameter of the circle where the cone tip of the block switch 4-2 is located is larger than the diameter of the grouting short pipe 4-1, and the maximum diameter is larger than the diameter of the grouting pipe 4-3. When the slider 4-1-1 drives the grouting short pipe 4-1 to move toward the grouting pipe 4-3, the cone tip of the block switch 4-2 opens outward, and the grouting amount increases; the grouting control pipe 4-4 includes an inner pipe 4-4-1 and an outer pipe 4-4-2 that are connected to each other. The inner pipe 4-4-1 is provided with a protrusion on the side, and the outer pipe 4-4-2 is provided with a sliding groove for accommodating the protrusion on the side; one end of the outer pipe 4-4-2 is vertically welded to the grouting pipe 4-3, and the other end is connected to the grouting extension pipe 4-5 by bolts; the inner pipe 4- One end of 4-1 is arranged in the grouting pipe 4-3 and is threadedly connected with a rubber grouting port 4-4-1-1. When the protrusion moves toward the grouting pipe 4-3, the grouting amount decreases. When the rubber grouting port 4-4-1-1 abuts against the grouting pipe 4-3, the grouting stops. The grouting gun mouth 4-6 is connected to the grouting extension pipe 4-5 by bolts. The shapes of the grouting gun mouth 4-6 include conical, quadrangular pyramid and prism type, which can adapt to a variety of grouting environments while achieving the purpose of precisely controlling the grouting amount.

[0026] The grouting gun 4 is further provided with a one-way valve 4-7, which is provided at the top of the grouting pipe 4-3 and fixedly connected to the protrusion of the inner pipe 4-4-1 for controlling the movement of the protrusion in the chute.

[0027] The working principle of the present invention is as follows: After the grouting machine is assembled, an air tightness test is first performed to ensure that there is no leakage, and the operating stability under different grouting pressure and flow conditions is tested through the pressure gauge 3-1 and the grouting flow meter 2-1. In actual use, open the slurry inlet valve 2-2 to pour slurry into the slurry temporary storage barrel 2, then turn on the motor 3-2, so that the air pump 3 gradually pressurizes the air through the air inlet, and after the pressure gauge 3-1 reaches the expected pressure, open the air outlet of the air pump 3 to inject pressure into the slurry temporary storage barrel 2. The slurry in the slurry temporary storage barrel 2 is pumped into the grouting gun 4 from the slurry outlet, and then the slider 4-1-1 is slowly moved while holding the one-way valve 4-7. After the pressure gauge 3-1 reaches the expected pressure again, adjust the one-way valve 4-7 and observe the grouting flow meter 2-1 to achieve precise control of the grouting pressure and grouting amount.

Claims

1. A grouting machine, characterized in that: The invention comprises a box body (1), a slurry temporary storage barrel (2), an air pump (3) and a grouting gun (4); the slurry temporary storage barrel (2) and the air pump (3) are arranged in the box body (1); the air outlet pipeline of the air pump (3) is connected to the air inlet of the slurry temporary storage barrel (2); the slurry outlet pipeline of the slurry temporary storage barrel (2) is connected to the slurry inlet of the grouting gun (4); the grouting gun (4) comprises a slurry inlet short pipe (4-1), a block switch (4-2), a grouting pipe (4-3), a grouting control pipe (4-4), a grouting The grouting extension tube (4-5) and the grouting gun mouth (4-6) are provided. The outer portion of the grouting short tube (4-1) is fixedly sleeved with a slider (4-1-1). The bottom of the grouting tube (4-3) is provided with a connecting rod (4-3-1) with a locking member. The slider (4-1-1) is slidably connected to the connecting rod (4-3-1) and is fixed and limited by the locking member. The block switch (4-2) is provided between the grouting tube (4-3) and the grouting short tube (4-1) and maintains connection therewith. The block switch (4-2) comprises a plurality of triangular pyramid-like blocks with downward-pointing cone tips. The circumferential side is fixed to the inner wall of the elastic rubber tube (4-2-1); when the slider (4-1-1) drives the slurry inlet short tube (4-1) to move toward the grouting tube (4-3), the cone tip of the block switch (4-2) opens outward, and the grouting amount increases; the grouting control tube (4-4) includes an inner tube (4-4-1) and an outer tube (4-4-2) that are sleeved together, the inner tube (4-4-1) is provided with a protrusion on the side, and the outer tube (4-4-2) is provided with a sliding groove for accommodating the protrusion on the side; the outer tube (4-4-2) One end is vertically welded to the grouting pipe (4-3), and the other end is connected to the grouting extension pipe (4-5) by means of bolts; one end of the inner pipe (4-4-1) is arranged in the grouting pipe (4-3) and is provided with a rubber grouting inlet (4-4-1-1); when the protrusion moves toward the grouting pipe (4-3), the grouting amount decreases; when the rubber grouting inlet (4-4-1-1) abuts against the grouting pipe (4-3), the grouting stops; the grouting gun mouth (4-6) is connected to the grouting extension pipe (4-5) by means of bolts.

2. A grouting machine according to claim 1, characterized in that, The bottom of the box (1) is provided with walking wheels (1-1).

3. A grouting machine according to claim 1, characterized in that, A pressure gauge (3-1) is provided at the air outlet of the air pump (3).

4. A grouting machine according to claim 1, characterized in that, The air pump (3) is equipped with a motor (3-2).

5. A grouting machine according to claim 1, characterized in that, A grouting flow meter (2-1) is provided at the slurry outlet of the slurry temporary storage barrel (2).

6. A grouting machine according to claim 1, characterized in that, The slurry temporary storage barrel (2) is made of corrosion-resistant material, and is provided with a slurry inlet on the top thereof, and the slurry inlet is provided with a sealing cover and a slurry inlet valve (2-2).

7. A grouting machine according to claim 1, characterized in that: The minimum diameter of the circle where the cone tip of the block switch (4-2) is located is greater than the diameter of the slurry inlet short pipe (4-1), and the maximum diameter is greater than the diameter of the grouting pipe (4-3).

8. A grouting machine according to claim 1, characterized in that: The grouting gun (4) is further provided with a one-way valve (4-7), which is provided at the top of the grouting pipe (4) and fixedly connected to the protrusion of the inner pipe (4-4-1) and is used to control the movement of the protrusion in the chute.

9. A grouting machine according to claim 1, characterized in that: The shapes of the grouting gun nozzles (4-6) include conical, quadrangular and pyramidal.

10. A grouting machine according to claim 1, characterized in that: The rubber slurry inlet (4-4-1-1) is threadedly connected to the inner tube (4-4-1).

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