Slurry feeding pipe structure for grouting of cast-in-situ bored pile based on soft soil roadbed treatment

Abstract

The utility model discloses a soft soil roadbed treatment-based grouting pipe structure for grouting of a cast-in-situ bored pile, which comprises a main pipe body and connecting mechanisms fixedly connected with the two ends of the main pipe body, four air supply mechanisms are arranged on the outer side of the main pipe body at equal intervals, and a plurality of vibration mechanisms matched with the air supply mechanisms are arranged in the four air supply mechanisms; through cooperation of a limiting block, a limiting groove and a pressing strip, the ejector rod is conveniently pressed, then the limiting block is ejected out of the limiting groove, the convenience of device disassembly and assembly is improved, through cooperation of a first rubber ring and a second rubber ring, gaps generated when a connecting mechanism and an air supply mechanism are installed are conveniently filled, slurry outflow and air leakage are avoided, and the service life of the device is prolonged. And through cooperation of a vibration mechanism and an air supply mechanism, vibration beads can be conveniently driven by air to hit the main pipe body, then vibration is generated to vibrate down silt adsorbed on the inner wall of the main pipe body, the flow resistance is reduced, the slurry feeding efficiency of the device is improved, and finally the problems that the device is troublesome to mount and dismount, poor in sealing performance and low in slurry feeding efficiency are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting, in particular to a grouting pipe structure for grouting bored piles based on soft soil roadbed treatment. Background Art

[0002] Bored cast-in-place piles are widely used in soft soil roadbed treatment projects. Grouting needs to be injected into the boreholes during the construction process. The slurry pipe is an indispensable transmission mechanism. However, the existing slurry pipes are mostly made of ordinary steel or soft rubber hoses, and the joints are mostly threaded or wire-twisted. This method not only has poor sealing effect, but also is troublesome to install and remove. In addition, when the internal slurry flows, some sediment will be adsorbed on the inner wall of the slurry pipe, increasing the flow resistance and affecting the slurry delivery efficiency. Therefore, the above problems need to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a grouting pipe structure for bored pile grouting based on soft soil roadbed treatment.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a grouting pipe structure for bored cast-in-place pile grouting based on soft soil roadbed treatment, including a main body and a connecting mechanism fixed to both ends of the main body, four air supply mechanisms are equidistantly provided on the outside of the main body, and multiple vibration mechanisms that cooperate with the air supply mechanisms are provided inside the four air supply mechanisms, and pipe sleeves are provided between the outer sides of the air supply mechanisms.

[0005] Preferably, the air supply mechanism includes an air cavity provided on the outer wall of the main body and air delivery holes opened on both sides of the air cavity, an air guide tube is fixedly connected to the air delivery hole on one side, and a first rubber ring is provided in the air delivery hole on the other side.

[0006] Preferably, the vibration mechanism includes a mounting rod fixed to the inner wall of the air cavity and a mounting plate rotatably connected to the other end of the mounting rod, and a plurality of flow-blocking hemispherical shells are equidistantly installed on the circumference of the mounting plate. The flow-blocking hemispherical shells are semicircular shell structures, and the top ends of the plurality of flow-blocking hemispherical shells are fixed with springs, and the other ends of the plurality of springs are fixed with vibration beads for vibrating the main pipe.

[0007] Preferably, the connecting mechanism includes an inner sleeve fixedly connected to one end of the main body and an outer sleeve arranged at the other end of the main body, the inner sleeve is provided with four first mounting grooves equidistantly around the periphery, and limiting rods are slidably installed in the four first mounting grooves, limiting grooves are equidistantly provided on the periphery of the outer sleeve, and a clamping block that cooperates with the limiting groove is raised on the outer wall of one end of the limiting rod.

[0008] Preferably, a push rod for pushing out the clamping block is movably inserted into the four limiting grooves.

[0009] Preferably, arc-shaped pressing strips are provided on both sides of the outside of the sleeve, the outer end of the push rod is fixedly connected to the pressing strip on the outside of the sleeve, and a second rubber ring is installed at one end of the outer sleeve corresponding to the inner sleeve.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates pressing the push rod through the cooperation of the limit block, the limit groove and the pressing strip, thereby pushing the limit block out of the limit groove, improving the convenience of disassembly and assembly of the slurry delivery pipe; through the cooperation of the first rubber ring and the second rubber ring, it is convenient to fill the gap between the connecting mechanism and the air delivery mechanism during installation, thereby avoiding slurry outflow and air leakage, and improving the sealing of the device; through the cooperation of the vibration mechanism and the air delivery mechanism, it is convenient to drive the vibration beads to hit the main body through air, thereby generating vibration to adsorb the mud and sand on the inner wall of the main body and vibrate it down to reduce flow resistance, thereby improving the slurry delivery efficiency of the device, and ultimately solving the problems of troublesome installation and disassembly of the device, poor sealing and low slurry delivery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the connection mechanism proposed by the present utility model;

[0015] Figure 4 This is a schematic diagram of the air supply mechanism proposed in the present utility model;

[0016] Figure 5 This is a schematic diagram of the vibration mechanism proposed in the present utility model.

[0017] The serial numbers in the figure are: 1. main body; 2. pipe sleeve; 3. air cavity; 4. air guide tube; 5. first rubber ring; 6. mounting plate; 7. flow-blocking hemispherical shell; 8. spring; 9. vibrating bead; 10. inner sleeve; 11. limiting rod; 12. outer sleeve; 13. pressing strip; 14. ejector rod; 15. second rubber ring; 16. limiting groove; 17. mounting rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example: See Figure 1-5 The utility model discloses a grouting pipe structure for bored pile grouting based on soft soil roadbed treatment, comprising a main body 1 and a connecting mechanism fixed to both ends of the main body 1, which is convenient for installing other mechanisms through the main body 1; the grouting pipe is convenient for installing and removing through the connecting mechanism; four air supply mechanisms are equidistantly provided on the outside of the main body 1, which are convenient for driving the vibration mechanism to operate; a plurality of vibration mechanisms cooperating with the air supply mechanisms are provided inside the four air supply mechanisms, and a pipe sleeve 2 is provided between the outer sides of the air supply mechanisms, which is convenient for sealing the outside through the pipe sleeve 2; the air supply mechanism comprises an air cavity 3 provided on the outer wall of the main body 1 and air delivery holes opened on both sides of the air cavity 3, which are convenient for installing the vibration mechanism through the air cavity 3; an air guide pipe 4 is fixed to the air delivery hole on one side, which is convenient for connecting to the first Rubber ring 5; and a first rubber ring 5 is provided in the air delivery hole on the other side, which facilitates sealing the air cavity 3 through the first rubber ring 5; the opening of the first rubber ring 5 is smaller than the air delivery hole, and the vibration mechanism includes a mounting rod 17 fixed to the inner wall of the air cavity 3 and a mounting plate 6 rotatably connected to the other end of the mounting rod 17, and the mounting plate 6 is conveniently installed through the mounting rod 17; the mounting plate 6 is conveniently driven to rotate by the choke hemispherical shell 7; a plurality of choke hemispherical shells 7 are equidistantly installed on the circumference of the mounting plate 6, and the choke hemispherical shells 7 are rotated in coordination with the wind force; the choke hemispherical shell 7 is a semicircular shell structure, and a plurality of choke hemispherical shells 7 are fixed with springs 8 on the top ends, which facilitate swinging of vibration beads 9 through the springs 8; a plurality of springs 8 are fixed with vibration beads 9 for vibrating the main body 1 at the other ends, and the vibration beads 9 facilitate knocking on the outside of the main body 1 to generate vibration.

[0020] In the present invention, the connecting mechanism includes an inner sleeve 10 fixed to one end of the main body 1 and an outer sleeve 12 provided at the other end of the main body 1. The inner sleeve 10 and the outer sleeve 12 cooperate to facilitate the connection of the slurry delivery pipe; the inner sleeve 10 is provided with four first mounting grooves equidistantly around the inner sleeve 10, and the first mounting grooves are used to facilitate the installation of the limiting rod 11; the limiting rods 11 are slidably installed in the four first mounting grooves, and the limiting grooves 16 are conveniently engaged through the limiting rods 11; the outer sleeve 12 is provided with four limiting grooves 16 equidistantly around the outer sleeve 12, and the limiting grooves 16 are conveniently engaged with the limiting rods 11; the limiting rods 11 A clamping block that cooperates with the limiting groove 16 is raised on the outer wall of one end, and the limiting groove 16 is easily clamped by the clamping block; the four limiting grooves 16 are movably inserted with a push rod 14 for pushing out the clamping block, and the limiting rod 11 is easily pushed out by the push rod 14; arc-shaped rod-shaped pressing strips 13 are provided on both sides of the outside of the pipe sleeve 2, and the pressing strips 13 are used to press the push rod 14; the outer end of the push rod 14 is fixedly connected to the pressing strip 13 on the outside of the pipe sleeve 2, and a second rubber ring 15 is installed at the end of the outer sleeve 12 corresponding to the inner sleeve 10, and the second rubber ring 15 is used to facilitate sealing the connection of the slurry delivery pipe.

[0021] Working principle: First, connect multiple slurry delivery pipes, align and plug the four air guide tubes 4 of the rear end slurry delivery pipe with the first rubber ring 5 of the front end slurry delivery pipe. The first rubber ring 5 will be deformed due to the plasticity of the rubber and will fill the surrounding gaps to facilitate sealing and avoid air leakage affecting the vibration mechanism effect. During the plugging process, the inner sleeve 10 will squeeze the second rubber ring 15 at one end of the outer sleeve 12, thereby sealing the connection between the main body 1. When the inner sleeve 10 and the outer sleeve 12 are plugged into the appropriate position, the limiting rod 11 will be stuck in the limiting groove 16 and cannot be pulled out. In addition, due to the sealing effect of the second rubber ring 15 and the accuracy of the length of the pipe sleeve 2, the slurry delivery pipe has the same appearance as the existing common slurry delivery pipe. If it needs to be removed, just squeeze the pressing strips 13 on both sides of the pipe sleeve 2 and press the push rod 14 inward and downward. 14 The other end will push out the limit rod 11 stuck in the limit groove 16, and the inner sleeve 10 and the outer sleeve 12 can be separated. When working, the slurry delivery pipe is first spliced ​​according to the grouting requirements, and the air pump is connected to the first rubber ring 5 of the first section of the slurry delivery pipe. The studio air pump generates a strong airflow, dragging the air cavity 3 internal obstruction hemispherical shell 7 to rotate, and the obstruction hemispherical shell 7 drives the vibration bead 9 to rotate. Since the straight-line distance from the mounting plate 6 to the vibration bead 9 is greater than the vertical radius of the air cavity 3, and the elasticity of the spring 8, the vibration bead 9 will continuously hit the outside of the main body 1 when it rotates to the outside of the main body 1, thereby vibrating the inner wall and shaking off the mud and sand adsorbed on the inner wall of the main body 1 to avoid agglomeration and increase the mud flow resistance. After the work is completed, the slurry delivery pipe will be removed section by section and the inner wall can be rinsed with a water pipe.

[0022] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grouting pipe structure for bored pile grouting based on soft soil roadbed treatment, comprising a main body (1) and a connecting mechanism fixed to both ends of the main body (1), characterized in that: Four air supply mechanisms are equidistantly arranged on the outside of the main body (1), a plurality of vibration mechanisms cooperating with the air supply mechanisms are arranged inside the four air supply mechanisms, and pipe sleeves (2) are provided between the outsides of the air supply mechanisms.

2. The grouting pipe structure for bored pile grouting based on soft soil roadbed treatment according to claim 1, characterized in that: The air supply mechanism comprises an air cavity (3) arranged on the outer wall of the main body (1) and air delivery holes opened on both sides of the air cavity (3); an air guide tube (4) is fixedly connected to the air delivery hole on one side, and a first rubber ring (5) is provided in the air delivery hole on the other side.

3. The grouting pipe structure for bored pile grouting based on soft soil roadbed treatment according to claim 1, characterized in that: The vibration mechanism comprises a mounting rod (17) fixedly connected to the inner wall of the air cavity (3) and a mounting plate (6) rotatably connected to the other end of the mounting rod (17); a plurality of flow-blocking hemispherical shells (7) are equidistantly mounted on the circumference of the mounting plate (6); the flow-blocking hemispherical shells (7) are semicircular shell structures; and a spring (8) is fixedly connected to the top end of each of the plurality of flow-blocking hemispherical shells (7); and a vibration bead (9) for vibrating the main pipe (1) is fixedly connected to the other end of each of the plurality of springs (8).

4. The grouting pipe structure for bored pile grouting based on soft soil roadbed treatment according to claim 3, characterized in that: The connecting mechanism comprises an inner sleeve (10) fixedly connected to one end of the main pipe body (1) and an outer sleeve (12) provided at the other end of the main pipe body (1), the inner sleeve (10) being provided with four first mounting grooves at equal intervals around the periphery, and limiting rods (11) being slidably installed in the four first mounting grooves, the outer sleeve (12) being provided with limiting grooves (16) at equal intervals around the periphery, and a clamping block protruding from the outer wall of one end of the limiting rod (11) and cooperating with the limiting groove (16).

5. The grouting pipe structure for bored pile grouting based on soft soil roadbed treatment according to claim 4, characterized in that: Each of the four limiting grooves (16) is movably connected with a push rod (14) for pushing out the clamping block.

6. The grouting pipe structure for bored pile grouting based on soft soil roadbed treatment according to claim 5, characterized in that: Arc-shaped pressing strips (13) are provided on both sides of the outside of the tube sleeve (2), the outer end of the push rod (14) is fixedly connected to the pressing strip (13) on the outside of the tube sleeve (2), and a second rubber ring (15) is installed at one end of the outer sleeve (12) corresponding to the inner sleeve (10) for insertion.

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