A multiple high-pressure grouting and spraying device for building construction

Abstract

The present invention discloses a multiple high-pressure grouting and injection device for construction, comprising: a grouting column head, a variable-diameter nozzle assembly, a change-direction grouting assembly, and a jet pump box fixedly mounted on one side of the change-direction grouting assembly, the variable-diameter nozzle assembly fixedly mounted on the end of the jet pump box, the change-direction grouting assembly and the jet pump box being arranged in two groups and being symmetrically arranged on both sides of the change-direction grouting assembly about the origin of the central axis of the grouting column head, the change-direction grouting assembly comprising a fixed guide seat, a swivel seat, and a driving core shaft. In the present invention, by providing a phase-changing jet assembly, the swingable swivel seats on both sides of the fixed guide seat are used to drive the variable-diameter nozzle assembly and the jet pump box to perform a deflection motion under the control of the driving core shaft, so that the high-pressure jet is used to impact and penetrate the soil structure, thereby forming a jet-like diffusion space in the soil body, the space being centrally scattered, the slurry solidifying in the scattered space, improving the bonding effect between the surrounding structure and the soil layer, and thus preventing the surrounding structure from settling.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a multiple high-pressure grouting jet device for building construction. Background Art

[0002] Multiple-tube high-pressure jet grouting involves drilling a hole in the ground, inserting a multiple-tube into the hole, and then drilling deep into the hole. High-pressure water jets are first injected to disrupt the soil's physical properties and particle aggregation. Once a slurry flow forms within the soil, it is immediately extracted from the multiple-tube using a vacuum pump. Repeated high-pressure water injection and extraction creates a large space within the soil. Ultrasonic sensors are placed near the nozzles to measure the shape and diameter of this space. Then, appropriate materials are selected to fill the empty space according to project requirements, forming a columnar structure filled with the filler material within the soil.

[0003] Many existing multi-tube high-pressure grouting injection devices mainly perform circumferential jetting by setting multiple jet hole structures on the surface of the column head. Multiple jet holes lead to dispersed grouting pressure, small grouting area, small volume of the formed circumferential structure and short horizontal span. In addition, the high-pressure directional output is only used to jet along the radial direction of the column head. The shape of the circumferential structure is directly related to the arrangement of the matrix inside the soil layer. It is easy to form a column cavity around the jet hole due to high pressure, such as Figure 10 As shown in (a) and (b), this type of perimeter structure has a large consolidation area but a small lateral extension range, which makes it prone to settlement. In addition, this type of perimeter structure uses a lot of materials, which increases the construction cost and has certain defects.

[0004] In view of this, research and improvement are carried out on the existing problems, and a multiple high-pressure grouting injection device for construction is provided to solve the current problems. The purpose is to achieve the purpose of solving problems and improving practical value through this technology. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] The jet pump box is fixedly mounted on one side of the swivel seat and one end is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a jet impeller rotatably mounted inside the jet pump box, the variable diameter nozzle assembly includes a guide ring seat, a movable slip ring and a plurality of beam plates rotatably mounted on one end of the guide ring seat, a driving rod is fixedly mounted on the surface of the guide ring seat, the output end of the driving rod is fixedly connected to the movable slip ring slidably sleeved on the guide ring seat, a plurality of linkage frames are movably mounted on one side of the movable slip ring, a deflection seat is fixedly mounted on the surface of the beam plate, and one end of the linkage frame is movably connected to the surface of the deflection seat.

[0008] In a preferred example, the present invention can be further configured as follows: the surface of the grouting column head is provided with a swing groove for the deflection movement of the variable diameter nozzle assembly and the jet pump box, and the surface of the swing groove is provided with a sealing film wrapped around the port of the variable diameter nozzle assembly, and the sealing film is a silicone diaphragm structure.

[0009] In a preferred example, the present invention can be further configured as follows: the top end of the driving core shaft penetrates the top surface of the grouting column head and extends outward, and the driving core shaft is rotatably sleeved on the inner side of the grouting column head and the rotating sleeve rod.

[0010] In a preferred example, the present invention can be further configured as follows: the centers of the swivel seat and the axle seat are located on the same horizontal line, and the two ends of the linkage rod are respectively connected to the surface of the swivel seat and the end ball head of the fixed traction rod.

[0011] In a preferred example, the present invention can be further configured as follows: the jet rotor is located on the central axis of the jet pump box and the drive motor, and the jet rotor has a conical structure.

[0012] In a preferred example, the present invention can be further configured as follows: a liquid inlet is provided on the surface of the jet pump box, a conduit connected to the end of the liquid inlet is provided inside the grouting column head, and the other end of the conduit is led out from the top of the grouting column head for connecting the injection water flow and the slurry.

[0013] In a preferred example, the present invention can be further configured as follows: the number of the beam plates, the deflection seats and the linkage frames is several and they are arranged one to one, the beam plates are evenly distributed in the circumferential direction, and an annular sleeve is provided on the inner side of the beam plate, the annular sleeve is an elastic hose structure and one end of the annular sleeve is connected to the end of the variable diameter nozzle assembly.

[0014] The beneficial effects achieved by the present invention are:

[0015] 1. In the present invention, a phase-changing jet assembly is provided, and the swingable swivel seats on both sides of the fixed guide seat are used to drive the variable diameter nozzle assembly and the jet pump box to perform deflection movement under the control of the driving core shaft, so that the high-pressure jet is used to impact and penetrate the soil layer structure to form a jet-like diffusion space in the soil body. The space is centrally scattered, and the slurry is solidified in the scattered space, thereby improving the bonding effect between the surrounding body and the soil layer, thereby preventing the surrounding body from settling.

[0016] 2. In the present invention, a variable-diameter nozzle assembly structure is set up, and the driving rod and the movable slip ring are used to drive the beam plate to deflect and expand or reduce the injection diameter, so that the slurry is sprayed into a beam, and the impact pressure is increased to obtain a larger erosion radius, thereby increasing the lateral radius of the peripheral structure and further avoiding the occurrence of peripheral structure sedimentation.

[0017] 3. In the present invention, a multi-directional jet grouting structure is used to form a multi-directional scattering on the periphery of the grouting column head, making a thorny ball-shaped peripheral structure that is fully embedded in the interior of the soil layer and has a large contact area. This not only improves the contact effect between the peripheral structure and the soil layer but also reduces the slurry material used and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a grouting column head according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a reversible grouting assembly according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation structure of a variable-diameter nozzle assembly and a jet pump box according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the linkage structure of the swivel seat and the driving core shaft according to an embodiment of the present invention;

[0023] Figure 6 xx is a schematic structural diagram of an embodiment of the present invention;

[0024] Figure 7 For an embodiment of the present invention Figure 5 Schematic diagram of the structure at A;

[0025] Figure 8 A schematic diagram of the cross-sectional structure of a jet pump box according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the jet propeller structure according to an embodiment of the present invention;

[0027] Figure 10 It is a schematic diagram comparing the working effect of the present invention with that of the traditional multiple high-pressure grouting and jetting device; wherein, Figure (a) and Figure (b) are the working process of the traditional multiple high-pressure grouting and jetting device and the peripheral structure forming effect display diagram; wherein, Figure (c) and Figure (d) are the working process of the multiple high-pressure grouting and jetting device of the present invention and the peripheral structure forming effect display diagram respectively.

[0028] Reference numerals:

[0029] 100, grouting column head; 110, swing groove; 111, sealing film

[0030] 200, variable diameter nozzle assembly; 210, guide ring seat; 220, movable slip ring; 230, beam plate; 240, drive rod; 221, linkage frame; 231, deflection seat;

[0031] 300, direction-changing grouting assembly; 310, fixed guide seat; 320, swivel seat; 330, driving mandrel; 340, shaft seat; 311, rotating sleeve rod; 331, fixed traction rod; 332, linkage rod;

[0032] 400, jet pump box; 410, drive motor; 420, liquid inlet; 430, jet rotor. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0034] A multiple high-pressure grouting and jetting device for construction provided by some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0035] Combine Figure 1-10As shown, the present invention provides a multiple high-pressure grouting injection device for construction, comprising: a grouting column head 100, a variable-diameter nozzle assembly 200, a change-direction grouting assembly 300, and a jet pump box 400 fixedly installed on one side of the change-direction grouting assembly 300, the variable-diameter nozzle assembly 200 is fixedly installed at the end of the jet pump box 400, the change-direction grouting assembly 300 and the jet pump box 400 are two groups and are symmetrically arranged on both sides of the change-direction grouting assembly 300 about the origin of the central axis of the grouting column head 100, the change-direction grouting assembly 300 includes a fixed guide seat 31 0, swivel seat 320 and driving core shaft 330, the inner side of the fixed guide seat 310 is rotatably mounted with a shaft seat 340, the inner side of the swivel seat 320 is fixedly connected to both sides of the shaft seat 340 and is rotatably sleeved on the surface of the fixed guide seat 310, the surface of the fixed guide seat 310 is provided with a rotating sleeve rod 311, the driving core shaft 330 is rotatably sleeved on the rotating sleeve rod 311 and the inner side of the fixed guide seat 310 and a fixed traction rod 331 is fixedly mounted on one end, one end of the fixed traction rod 331 is movably connected with a linkage rod 332, and the other end of the linkage rod 332 is movably connected to the surface of the swivel seat 320;

[0036] The jet pump box 400 is fixedly installed on one side of the swivel seat 320 and one end is fixedly connected to the drive motor 410. The output end of the drive motor 410 is fixedly connected to the jet impeller 430 rotatably installed inside the jet pump box 400. The variable diameter nozzle assembly 200 includes a guide ring seat 210, a movable slip ring 220 and a plurality of beam plates 230 rotatably installed on one end of the guide ring seat 210. A drive rod 240 is fixedly installed on the surface of the guide ring seat 210. The output end of the drive rod 240 is fixedly connected to the movable slip ring 220 that is slidably sleeved on the guide ring seat 210. A plurality of linkage frames 221 are movably installed on one side of the movable slip ring 220. A deflection seat 231 is fixedly installed on the surface of the beam plate 230. One end of the linkage frame 221 is movably connected to the surface of the deflection seat 231.

[0037] In this embodiment, the surface of the grouting column head 100 is provided with a swing groove 110 for the deflection movement of the variable diameter nozzle assembly 200 and the jet pump box 400. The surface of the swing groove 110 is provided with a sealing film 111 wrapped around the port of the variable diameter nozzle assembly 200, and the sealing film 111 is a silicone diaphragm structure.

[0038] Specifically, the sealing of the swing groove 110 is achieved by the sealing film 111 and can be elastically pulled following the movement of the variable-diameter nozzle assembly 200, and adaptively deformed to maintain the sealing effect.

[0039] In this embodiment, the top end of the driving core shaft 330 penetrates the top surface of the grouting column head 100 and extends outward. The driving core shaft 330 is rotatably sleeved on the inner side of the grouting column head 100 and the rotating sleeve rod 311 .

[0040] Specifically, by rotating the driving core shaft 330 at the top of the grouting column head 100, the driving core shaft 330, the fixed traction rod 331 and the driving core shaft 330 can pull the shaft seat 340 and the swivel seat 320 to rotate on the surface of the fixed guide seat 310 to adjust the opposite direction of the variable diameter nozzle assembly 200 and the jet pump box 400.

[0041] In this embodiment, the centers of the swivel seat 320 and the shaft seat 340 are located on the same horizontal line, and the two ends of the linkage rod 332 are respectively connected to the surface of the swivel seat 320 and the end ball head of the fixed traction rod 331.

[0042] Specifically, the rotation of the shaft seat 340 inside the fixed guide seat 310 is used as the deflection movement center of the swivel seat 320. The fixed traction rod 331 follows the lateral rotation of the driving core shaft 330 and is connected by the ball head of the linkage rod 332 to realize the rotation traction of the swivel seat 320.

[0043] In this embodiment, the jet rotor paddle 430 is located on the central axis of the jet pump box 400 and the driving motor 410, and the jet rotor paddle 430 has a conical structure.

[0044] Specifically, the rotation of the jet impeller 430 is used to guide the water flow or slurry and the kinetic energy loss of the water flow and slurry moving inside the grouting column head 100 and the jet pump box 400 is compensated by mechanical rotation, thereby increasing the jet pressure.

[0045] In this embodiment, a liquid inlet port 420 is provided on the surface of the jet pump box 400, and a conduit connected to the end of the liquid inlet port 420 is provided inside the grouting column head 100, and the other end of the conduit is led out from the top of the grouting column head 100 for connecting the injection water flow and the slurry.

[0046] In this embodiment, the number of beam plates 230, deflection seats 231 and linkage frames 221 is several and arranged one by one. The beam plates 230 are evenly distributed in the circumferential direction. An annular sleeve is provided on the inner side of the beam plate 230. The annular sleeve is an elastic hose structure and one end of the annular sleeve is connected to the end of the variable diameter nozzle assembly 200.

[0047] Specifically, the annular sleeve is used as the inner lining layer of the beam plate 230 to prevent the slurry and water from overflowing from the gaps between the beam plates 230 , and the flexible structure of the annular sleeve can be deformed following the deflection of the beam plates 230 .

[0048] The working principle and use process of the present invention:

[0049] Insert the grouting column head 100 into the construction pile hole and connect it to the slurry booster conveying structure, adjust the slurry conveying pressure to 20-25MPa, and connect it to the liquid inlet port 420 through the internal conduit of the grouting column head 100. The conveyed slurry is driven by the driving motor 410 inside the jet pump box 400 to drive the jet propeller 430 to rotate to further replenish the kinetic energy and perform beam injection inside the jet pump box 400 and the variable diameter nozzle assembly 200. First, start the injection of high-pressure water flow to destroy the physical properties and particle aggregation of the soil. The destruction surface extends radially toward the periphery along the grouting column head 100. After the mud flow is formed inside, it is immediately extracted by a vacuum pump. After the high-pressure water flow is injected and extracted, the operation is repeated. During the repeated operation, the grouting column head 100 can be rotated to perform the variable diameter nozzle. The overall horizontal deflection movement of the assembly 200 and the jet pump box 400 performs jets on multiple sides of the periphery of the grouting column head 100, forming multiple jet spaces in the same horizontal plane; the driving core shaft 330 can be rotated to drive the core shaft 330, the fixed traction rod 331 and the linkage rod 332 to traction the shaft seat 340 and the swivel seat 320 on the surface of the fixed guide seat 310 to perform deflection movement, thereby driving the variable diameter nozzle assembly 200 and the jet pump box 400 to adjust the angle, and after the adjustment is completed, the port of the variable diameter nozzle assembly 200 is opposite, and high-pressure water flow is injected and extracted again to form a multi-directional scattering space with the grouting column head 100 and the variable diameter nozzle assembly 200 as the axis; after the space is formed, the grouting operation is performed to consolidate the slurry in the space, forming a thorn ball-shaped peripheral body inside the soil layer, such as Figure 10 As shown in the figure, the spherical structure effectively increases the contact area with the soil layer and reduces the material consumption.

[0050] During the water jetting process, the driving rod 240 and the movable slip ring 220 can be used to drive the beam plate 230 to deflect and expand or reduce the injection diameter, and the slurry can be beamed to increase the impact pressure to obtain a larger erosion radius, thereby increasing the lateral radius of the peripheral structure, further increasing the extension span of the peripheral structure, and improving the interlocking effect between the peripheral structure and the soil layer.

[0051] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A multiple high-pressure grouting spraying device for construction, characterized in that: include: A grouting column head (100), a variable diameter nozzle assembly (200), a direction-changing grouting assembly (300), and a jet pump box (400) fixedly mounted on one side of the direction-changing grouting assembly (300), wherein the variable diameter nozzle assembly (200) is fixedly mounted on the end of the jet pump box (400), the direction-changing grouting assembly (300) and the jet pump box (400) are in two groups and are symmetrically arranged on both sides of the direction-changing grouting assembly (300) about the origin of the central axis of the grouting column head (100), the direction-changing grouting assembly (300) comprises a fixed guide seat (310), a swivel seat (320), and a driving core shaft (330), wherein the direction-changing grouting assembly (300) and the direction-changing grouting assembly (300) are symmetrically arranged on both sides of the direction-changing grouting assembly (300) about the origin of the central axis of the grouting column head (100), and the direction-changing grouting assembly (300) comprises a fixed guide seat (310), a swivel seat (320), and a driving core shaft (330). The inner side of the fixed guide seat (310) is rotatably mounted with a shaft seat (340), the inner side of the swivel seat (320) is fixedly connected to both sides of the shaft seat (340) and is rotatably sleeved on the surface of the fixed guide seat (310), the surface of the fixed guide seat (310) is provided with a rotating sleeve rod (311), the driving core shaft (330) is rotatably sleeved on the rotating sleeve rod (311) and the inner side of the fixed guide seat (310), and a fixed traction rod (331) is fixedly mounted on one end of the driving core shaft (330), one end of the fixed traction rod (331) is movably connected with a linkage rod (332), and the other end of the linkage rod (332) is movably connected to the surface of the swivel seat (320); The jet pump box (400) is fixedly mounted on one side of the rotating ring seat (320) and one end of the driving motor (410) is fixedly connected. The output end of the driving motor (410) is fixedly connected to the jet propeller (430) rotatably mounted inside the jet pump box (400). The variable diameter nozzle assembly (200) includes a guide ring seat (210), a movable slip ring (220) and a plurality of beam plates (230) rotatably mounted on one end of the guide ring seat (210). A driving rod (240) is fixedly mounted on the surface of the guide ring seat (210). The output end of the driving rod (240) is connected to the guide ring seat with a sliding sleeve. The movable slip ring (220) of (210) is fixedly connected, and a plurality of linkage frames (221) are movably installed on one side of the movable slip ring (220), and a deflection seat (231) is fixedly installed on the surface of the beam plate (230), and one end of the linkage frame (221) is movably connected to the surface of the deflection seat (231); the surface of the grouting column head (100) is provided with a swing groove (110) for the deflection movement of the variable diameter nozzle assembly (200) and the jet pump box (400), and the surface of the swing groove (110) is provided with a sealing film (111) wrapped around the port of the variable diameter nozzle assembly (200).

2. A multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: The sealing film (111) is a silicone diaphragm structure.

3. A multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: The top end of the driving core shaft (330) penetrates the top surface of the grouting column head (100) and extends outward, and the driving core shaft (330) is rotatably sleeved on the inner side of the grouting column head (100) and the rotating sleeve rod (311).

4. A multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: The centers of the swivel seat (320) and the shaft seat (340) are located on the same horizontal line, and the two ends of the linkage rod (332) are respectively connected to the surface of the swivel seat (320) and the end ball head of the fixed traction rod (331).

5. The multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: The jet rotor (430) is located on the central axis of the jet pump box (400) and the drive motor (410), and the jet rotor (430) has a conical structure.

6. A multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: A liquid inlet opening (420) is provided on the surface of the jet pump box (400), and a conduit connected to the end of the liquid inlet opening (420) is provided inside the grouting column head (100), and the other end of the conduit is led out from the top of the grouting column head (100) for connecting the injection water flow and the slurry.

7. The multiple high-pressure grouting spraying device for construction according to claim 1, characterized in that: The beam plates (230), the deflection seats (231) and the linkage frames (221) are arranged in a plurality and in a one-to-one correspondence. The beam plates (230) are evenly distributed in a circumferential direction. An annular sleeve is provided on the inner side of the beam plate (230). The annular sleeve is an elastic hose structure and one end of the annular sleeve is connected to the end of the variable diameter nozzle assembly (200).

Images