Self-cleaning grouting pipe anti-clogging device

Abstract

This utility model relates to the field of building construction technology, and in particular to a self-cleaning grouting pipe anti-clogging device, comprising a pipe body, a conical head, and a vertical rod. A through groove is formed in the middle of the pipe body, and the vertical rod is rotatably connected to the middle of the through groove. Several spiral blades are fitted on the outer surface of the vertical rod, and several limiting frames are fitted on the outer surface of the vertical rod near the spiral blades. Several sets of grouting holes are formed on the side wall of the pipe body, and the conical head is fixed to the bottom end of the pipe body. Compared with traditional grouting pipe anti-clogging devices, this utility model, through the pipe body, conical head, vertical rod, spiral blades, limiting frames, end cap, and motor, improves the stability of motor installation by cooperating with the conical head, first connecting seat, and end cap. Starting the motor drives the vertical rod and spiral blades to rotate, and the limiting frames and through groove improve the stability of the vertical rod's rotation. This allows the spiral blades to agitate the grout, improving the vertical fluidity of the grout, thereby improving the stability and efficiency of grouting.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a self-cleaning grouting pipe anti-clogging device. Background Technology

[0002] Soft soil grouting is a foundation treatment technology that involves injecting prepared grout into soft soil foundations. By utilizing the filling, penetration, and compaction effects of the grout, the physical and mechanical properties of the soft soil are improved, thereby increasing the bearing capacity and stability of the foundation, reducing foundation settlement and uneven settlement, and enhancing the impermeability of the soft soil. This meets the foundation requirements of buildings. The construction method of soft soil foundation grouting mainly includes the following steps: construction preparation, drilling, installation of grouting pipes, grout preparation, grouting, and sealing.

[0003] Existing grouting pipes typically consist of a pipe body, positioning structure, and grouting holes. The pipe body is generally made of steel or plastic. Steel pipes have advantages such as high strength, high rigidity, and good corrosion resistance, and can withstand large grouting pressures, making them suitable for grouting deep soft soil foundations or projects with high strength requirements.

[0004] Due to the limited internal dimensions of the existing grouting pipes and the viscosity of the grout, grout blockage may occur during the grouting process, thus affecting the stability and efficiency of grouting. Utility Model Content

[0005] To overcome the problem that existing grouting pipes may cause grout blockage during the grouting process due to the limited internal dimensions of the pipe and the viscosity of the grout, thus affecting the stability and efficiency of grouting.

[0006] The technical solution of this utility model is as follows: a self-cleaning grouting pipe anti-clogging device, comprising a pipe body, a conical head, and a vertical rod. A through groove is opened in the middle of the pipe body, and the vertical rod is rotatably connected in the middle of the through groove. Several spiral blades are sleeved on the outer surface of the vertical rod, and several limiting frames are sleeved on the outer surface of the vertical rod near the spiral blades. Several sets of grouting holes are opened on the side wall of the pipe body. The conical head is fixed at the bottom end of the pipe body, and a first connecting seat is fixed at the top end of the conical head. An end cap is threadedly connected to the top end of the first connecting seat. A groove is opened in the middle of the first connecting seat, and a motor is fixed in the middle of the groove.

[0007] Furthermore, the bottom end cap of the vertical rod is fixed to the output end of the motor top, and the spiral blades and the limiting frame are linearly distributed. The external dimensions of the limiting frame are adapted to the internal dimensions of the through groove, which improves the stability of the vertical rod rotation.

[0008] Furthermore, a positioning seat is fixed at the top of the tube body, and the positioning seat is connected to the through groove.

[0009] Furthermore, a first threaded groove is provided at the bottom end of the tube for threaded connection of the first connecting seat. The external dimensions of the first connecting seat are adapted to the internal dimensions of the first threaded groove, which improves the stability of the tapered head installation.

[0010] Furthermore, several groups of grouting holes are symmetrically distributed, and the grouting holes pass through the pipe body and are connected to the through groove in sequence, which improves the uniformity of grouting.

[0011] Furthermore, a second connecting seat is fixedly provided at the top of the first connecting seat, and a second threaded groove is provided at the bottom of the end cap for threaded connection of the second connecting seat.

[0012] Furthermore, a second sealing ring is snapped into the inner top of the second threaded groove. The second sealing ring is annular, which improves the sealing performance of the end cap installation.

[0013] Furthermore, a limiting seat is fixed in the middle of the first connecting seat, and a slot is opened on the inner side wall of the limiting seat. A first sealing ring is engaged in the middle of the slot, which improves the sealing performance of the vertical rod rotation.

[0014] The beneficial effects of this utility model are:

[0015] Compared to traditional grouting pipe anti-clogging devices, this device, through the pipe body, conical head, vertical rod, spiral blades, limiting frame, end cap, and motor, improves the stability of motor installation by cooperating with the conical head, first connecting seat, and end cap. Starting the motor drives the vertical rod and spiral blades to rotate, and the limiting frame and through groove cooperate to improve the stability of the vertical rod's rotation. This allows the spiral blades to agitate the grout, improving the vertical fluidity of the grout and thus enhancing the stability and efficiency of grouting. Secondly, by setting up the limiting seat, slot, first sealing ring, and second sealing ring, the sealing performance of the connection between the first connecting seat and the end cap is improved. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the grouting pipe anti-clogging device of this utility model.

[0017] Figure 2 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the structure of the first connecting seat of this utility model.

[0019] Figure 4 The diagram shown is a cross-sectional view of the tube body of this utility model.

[0020] Figure 5 The diagram shown is a cross-sectional view of the end cap structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Pipe body; 2. Grouting hole; 3. Conical head; 4. Vertical rod; 5. Positioning seat; 6. First connecting seat; 7. Through groove; 8. Helical blade; 9. Limiting frame; 10. End cap; 11. Groove; 12. Motor; 13. Second connecting seat; 14. First threaded groove; 15. Second threaded groove; 16. Limiting seat; 17. Slot; 18. First sealing ring; 19. Second sealing ring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Among the currently discovered feasible technologies, the following are described:

[0024] The main steps of grouting construction for soft soil foundations include construction preparation, drilling, installation of grouting pipes, grout preparation, grouting, and sealing.

[0025] Construction preparation includes: site leveling: clearing obstacles such as stones and tree roots from the construction site and leveling the site to facilitate the passage and operation of construction equipment; material preparation: preparing grouting materials such as cement, water glass, and admixtures according to design requirements, and ensuring that the quality of the materials meets the standards. At the same time, preparing the corresponding grouting equipment and grouting equipment; surveying and setting out: determining the location of grouting holes using surveying instruments according to the design drawings and marking them.

[0026] Drilling involves the following steps: Selecting drilling equipment: Based on the properties of the soft soil foundation, drilling depth, and borehole diameter requirements, select appropriate drilling equipment, such as rotary drilling rigs or impact drilling rigs; Drilling operation: Drill according to the designed hole position, depth, and inclination. During drilling, pay attention to controlling the verticality and diameter of the borehole to prevent deviation or narrowing. Simultaneously, record the geological conditions during drilling, such as soil layer distribution and groundwater level, to adjust grouting parameters; Hole cleaning: After drilling, use clean water or air to clean the inside of the hole, removing mud, debris, and accumulated water to ensure the hole wall is clean and unobstructed.

[0027] The grouting pipe installation steps include: lowering the grouting pipe: slowly lowering the processed grouting pipe into the borehole to ensure that the grouting pipe is lowered to the designed depth. The connection of the grouting pipe should be firm and sealed to prevent discontinuity or leakage during the grouting process; fixing the grouting pipe: use a positioning device or use cement mortar at the borehole opening to fix the grouting pipe to prevent it from moving or floating during the grouting process.

[0028] Grout preparation: Determine the grout mix ratio. Based on the characteristics and design requirements of the soft soil foundation, determine a suitable grout mix ratio through experiments. For example, for general soft soil foundations, the commonly used cement grout mix ratio (mass ratio) is cement:water = 1:1-1:1.5; if a cement-water glass two-component grout is used, the volume ratio of cement grout to water glass solution is generally 1:0.3-1:1. Slurry preparation: According to the determined mix ratio, add cement, water, or other additives to the grout preparation equipment and mix thoroughly to make a uniform grout. The mixing time and speed of the grout should be controlled according to the type and performance requirements of the grout to ensure the quality of the grout. Grout filtration: The prepared grout is filtered through a filter screen to remove lumps, impurities, etc., to prevent clogging of the grouting pipe and grouting equipment.

[0029] Grouting: Connect the grouting equipment, ensuring the grouting pipe is securely connected to the grouting pump, grout storage tank, and other grouting equipment, and that the connection is firm and well-sealed; Start grouting: Start the grouting pump and grout according to the designed grouting pressure and volume. In the initial stage of grouting, the pressure should be increased slowly, and the grouting situation should be observed, such as the grouting pressure, grout flow rate, and whether there is grout leakage on the ground; Control grouting parameters: Adjust the grouting pressure, grout flow rate, and other parameters in a timely manner according to the actual situation during the grouting process. Generally, the grouting pressure should be gradually increased, but it should not exceed the designed maximum grouting pressure; The grout flow rate should be controlled according to the grout absorption of the stratum to avoid excessive grout loss or incomplete grouting.

[0030] After grouting is completed, promptly clean the grout and debris around the borehole opening to keep it clean.

[0031] Grouting pipe material: Generally, steel pipes or plastic pipes are used. Steel pipes have the advantages of high strength, high rigidity and good corrosion resistance, and can withstand large grouting pressure. They are suitable for deep soft soil foundation grouting or projects with high strength requirements. Plastic pipes have the characteristics of light weight, good flexibility, low cost and strong chemical corrosion resistance. They are easy to transport and construct, and are often used for shallow soft soil foundation grouting or environments with high corrosion resistance requirements.

[0032] Grouting pipe shape and size: The pipe body is usually circular with a diameter ranging from tens of millimeters to hundreds of millimeters. The specific size is determined according to the project needs and the amount of grouting. The length of the pipe body is determined by factors such as the thickness of the soft soil foundation, the grouting depth, and the construction process. It can be made of multiple sections of pipe that can be detachably connected, which is convenient for transportation and installation.

[0033] Please refer to Figures 1-5The self-cleaning grouting pipe anti-clogging device includes a pipe body 1, a conical head 3, and a vertical rod 4. A through groove 7 is provided in the middle of the pipe body 1 for grout flow. The grout mix ratio is determined through testing based on the characteristics of the soft soil foundation and design requirements. The grout is based on existing technology and will not be described in detail here. The vertical rod 4 is rotatably connected to the through groove 7. Several spiral blades 8 are fitted on the outer surface of the vertical rod 4. Several limiting frames 9 are fitted on the outer surface of the vertical rod 4 near the spiral blades 8. The spiral blades 8 and limiting frames 9 are linearly distributed. The external dimensions of the limiting frames 9 are adapted to the internal dimensions of the through groove 7, improving the stability of the vertical rod 4's rotation. Several sets of... Grouting holes 2, several groups of grouting holes 2 are symmetrically distributed, and the grouting holes 2 pass through the pipe body 1 and are connected to the through groove 7 in sequence, which improves the uniformity of grouting. The conical head 3 is fixed at the bottom end of the pipe body 1. The conical head 3 is conical, which improves the stability of the vertical movement of the pipe body 1. The top end of the conical head 3 is fixed with a first connecting seat 6. The top end of the first connecting seat 6 is threaded with an end cap 10. The first connecting seat 6 has a groove 11 in the middle. The groove 11 is fixed with a motor 12 by bolts in the middle. The bottom end of the vertical rod 4 passes through the end cap 10 and is fixed to the output end of the top end of the motor 12. The top end of the pipe body 1 is fixed with a positioning seat 5. The positioning seat 5 is connected to the through groove 7 to allow the pipe body 1 to communicate for grouting.

[0034] The bottom end of the tube body 1 is provided with a first threaded groove 14 for the first connecting seat 6 to be threaded. The external dimensions of the first connecting seat 6 are adapted to the internal dimensions of the first threaded groove 14, which improves the stability of the installation of the tapered head 3.

[0035] The top of the first connecting seat 6 is fixed with a second connecting seat 13. The bottom of the end cap 10 is provided with a second threaded groove 15 for the second connecting seat 13 to be threaded. The top of the second threaded groove 15 is engaged with a second sealing ring 19. The second sealing ring 19 is annular, which improves the sealing performance of the end cap 10. The middle of the first connecting seat 6 is fixed with a limiting seat 16. The inner side wall of the limiting seat 16 is provided with a slot 17. The middle of the slot 17 is engaged with a first sealing ring 18, which improves the sealing performance of the rotation of the vertical rod 4.

[0036] When using the grouting pipe anti-clogging device, the operator first moves the device to the designated position and installs the power supply. The positioning seat 5 is then connected to the grouting pump, grout storage tank, and other grouting equipment, ensuring a secure and well-sealed connection (threaded connection is acceptable). The processed pipe body 1 is slowly placed into the borehole, ensuring it reaches the designed depth. The grouting pump and grout storage tank are existing technologies and will not be described in detail here. The grouting pump is started, and grouting is performed according to the designed grouting pressure and volume. The grout flows downwards through the through-channel 7 and is then injected into the prepared slot through the grouting hole 2. When grout accumulates in the middle of the through-channel 7, affecting grout delivery efficiency, the operator starts the motor 12, which drives the vertical rod 4 to rotate, thereby rotating the spiral blade 8. This stirs the grout inside the through-channel 7 downwards, improving grout flow and grouting efficiency. When grouting is complete, the spiral blade 8 accelerates the discharge of accumulated grout, improving the ease of cleaning the inside of the through-channel 7.

[0037] Considering the possibility of leakage in the groove 11, the sealing performance of the end cap 10 is improved by providing a first sealing ring 18 and a second sealing ring 19.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning type anti-blocking device for a grouting pipe, characterized by, It includes a pipe body (1), a conical head (3) and a vertical rod (4): a through groove (7) is opened in the middle of the pipe body (1), the vertical rod (4) is rotatably connected in the middle of the through groove (7), a number of spiral blades (8) are sleeved on the outer surface of the vertical rod (4), a number of limiting frames (9) are sleeved on the outer surface of the vertical rod (4) near the spiral blades (8), a number of grouting holes (2) are opened on the side wall of the pipe body (1), the conical head (3) is fixed at the bottom end of the pipe body (1), the top end of the conical head (3) is fixed with a first connecting seat (6), the top end of the first connecting seat (6) is threaded with an end cap (10), the middle of the first connecting seat (6) is provided with a groove (11), and a motor (12) is fixed in the middle of the groove (11).

2. The self-cleaning grouting pipe anti-clogging device according to claim 1, characterized in that: The bottom end of the vertical rod (4) is fixed to the output end of the motor (12) through the end cap (10). The spiral blades (8) and the limiting frame (9) are linearly distributed. The external dimensions of the limiting frame (9) are adapted to the internal dimensions of the through groove (7).

3. The self-cleaning anti-blocking device for grouting pipe according to claim 1, characterized in that: The top end of the tube (1) is fixed with a positioning seat (5), which is connected to the through groove (7).

4. The self-cleaning anti-blocking device for grouting pipe according to claim 1, characterized in that: The bottom end of the tube body (1) is provided with a first threaded groove (14) for the first connecting seat (6) to be threaded. The external dimensions of the first connecting seat (6) are adapted to the internal dimensions of the first threaded groove (14).

5. The self-cleaning anti-blocking device for grouting pipe according to claim 1, characterized in that: Several groups of grouting holes (2) are symmetrically distributed, and the grouting holes (2) pass through the pipe body (1) and are connected to the through groove (7) in sequence.

6. The self-cleaning type anti-blocking device for grouting pipe according to claim 1, characterized in that: The top of the first connecting seat (6) is fixed with a second connecting seat (13), and the bottom of the end cap (10) is provided with a second threaded groove (15) for the second connecting seat (13) to be threaded.

7. The self-cleaning type anti-blocking device for grouting pipe according to claim 6, characterized in that: The inner top of the second threaded groove (15) is fitted with a second sealing ring (19), which is annular in shape.

8. The self-cleaning type anti-blocking device for grouting pipe according to claim 6, characterized in that: A limiting seat (16) is fixed in the middle of the first connecting seat (6), and a slot (17) is provided on the inner side wall of the limiting seat (16), and a first sealing ring (18) is engaged in the middle of the slot (17).

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