Polyurethane permeation type chemical grouting device and method for embankment foundation

Abstract

The invention belongs to the technical field of embankment foundation grouting, and discloses a polyurethane permeation type chemical grouting device and method for an embankment foundation, and the polyurethane permeation type chemical grouting device comprises a grouting pipe used for infusing polyurethane liquid. Through cooperation of structures such as the movement assembly and the conveying assembly, when liquid passes through the conveying assembly, a movement pipe is driven to rotate through a transmission belt, the movement pipe is matched with a notch in the periphery of a driving shaft through a metal block on the inner wall of the movement pipe, the driving shaft rotates along with the movement pipe, and a gear at the lower end rotates and moves through a guide toothed plate; when the conveying pipe swings, the gear is engaged with the guide toothed plate all the time, and the conveying pipe drives the flow dividing assembly to swing so as to enlarge the range of spraying the polyurethane liquid, and meanwhile, the polyurethane liquid can be more completely infused into fine cracks of a foundation; therefore, the strength of the subsequent foundation is improved, and the waterproofness is enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of dike foundation grouting, and specifically relates to a polyurethane permeable chemical grouting device and method for dike foundations. Background Art

[0002] The dike foundation refers to the soil layer or rock layer that supports the dike structure, bears the weight of the dike body, and resists external forces such as water flow scouring and seepage pressure. Its stability is directly related to the overall safety of the dike. If there are soft layers, cracks or leakage channels in the foundation, it may lead to dike settlement, piping or even breach. During the long-term use of the dike, its foundation is very likely to develop cracks due to the impact of water flow, thereby reducing the strength of the foundation. In the existing technical solutions, usually holes are first opened in the foundation, and polyurethane liquid is injected into the foundation through a grouting pipe to maintain the foundation. This liquid will expand when it encounters water and form a dense waterproof layer, thereby effectively blocking the leakage channels; However, it should be noted that the existing technology only simply grouts through a grouting pipe. There may still be relatively small cracks or channels in the foundation, and at this time, there is air, that is, air pressure, in the foundation, and the polyurethane liquid is relatively thick. This will cause the polyurethane liquid to not be able to penetrate well into the cracks completely. When the polyurethane liquid expands, it also cannot penetrate deep into the gaps, resulting in a reduction in the subsequent waterproof effect and the strength of the foundation being affected as well, ultimately affecting the overall safety of the dike. Therefore, a polyurethane permeable chemical grouting device and method for dike foundations are needed. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides a polyurethane permeable chemical grouting device and method for dike foundations, which solves the problems that there will be too much air in the foundation, and the polyurethane liquid is relatively thick, and the polyurethane liquid cannot penetrate well into the cracks completely, resulting in a reduction in the subsequent waterproof effect and the strength of the foundation being affected.

[0004] To achieve the above object, the present invention provides the following technical solution: A polyurethane permeable chemical grouting device for dike foundations, including a grouting pipe for infusing polyurethane liquid, and further including; A joint installed at the end of the grouting pipe, and two independent chambers are symmetrically arranged on the outer periphery of the joint; Several conveying components and moving components respectively installed in the independent chambers inside the joint. Every two moving components staggered and distributed on the outer periphery of each conveying component form a group, and the inside of the joint is communicated with a shunt component through the conveying components; The conveying component includes a conveying pipe with one end ball-jointed to the outside of the joint and the other end communicated with the inside of the joint; The motion assembly comprises a bracket mounted on the outer periphery of the conveying pipe, the bracket is rotatably connected to the motion pipe through a guide plate, the motion pipe is transmission-connected to the conveying assembly through a transmission belt, a driving shaft movably installed in the independent chamber in the joint and movably passing through the motion pipe, a gear is installed on the outer periphery of the driving shaft, a guide groove for the movement of the driving shaft is opened on the inner wall of the independent chamber in the joint, and a guide tooth plate meshing with the gear is installed inside the independent chamber; When the polyurethane liquid passes through the conveying assembly, it is forced to drive the moving tube to rotate through each transmission belt in each set of moving assemblies; The two guide grooves in each group of the motion components are distributed in an array in the vertical direction.

[0005] Preferably, a metal plate that can move in the vertical direction is movably clamped inside the independent chamber in the joint, the driving shaft is rotatably mounted on the metal plate, a plurality of guide grooves are provided at equal angles around the outer circumference of the driving shaft, and a metal block that moves inside the guide groove is provided inside the moving tube.

[0006] Preferably, the guide groove is in the shape of a right-angled trapezoid, and the lower end guide tooth plate in each group of the motion components is composed of tooth plates at both ends. The tooth plate close to the hypotenuse of the right-angled trapezoid is inclined and the inclination angle is equal to the inclination angle of the hypotenuse. When the lower end gear is engaged with the guide tooth plate, the upper end gear is disengaged from the guide tooth plate, and the two driving shafts are respectively located inside the same length side of each guide groove.

[0007] Preferably, the conveying assembly also includes a transmission pipe rotatably installed in the middle of the conveying pipe, a turbine is installed at the end of the transmission pipe, the transmission pipe is connected to the moving pipe through a transmission belt, and one end of the conveying pipe is located inside the joint and is sealed to the joint through a rubber sleeve.

[0008] Preferably, there are several diverter components which are symmetrically and equidistantly distributed on the periphery of the joint, the positions of the diverter components, the conveying components and the groups of motion components are adapted to each other, and each of the diverter components is also movably connected to the joint via a derivation component.

[0009] Preferably, the diversion assembly includes a protective box movably connected to the outer end of the conveying pipe, the protective box is movably connected with baffle 2 inside, the outer side of the protective box is threadedly installed with a threaded rod whose end is in contact with the side surface of baffle 2, the outer side of the protective box is equidistantly provided with a plurality of notches, a rubber sleeve 1 is provided on the notch, and the outer side of the protective box is hinged with a plurality of baffles 3 located inside each rubber sleeve 1 at equiangular angles in an annular direction on the outer side of the protective box, and each of the baffles 3 is connected to the baffle 2 via a steel cable.

[0010] Preferably, the diversion component further comprises a baffle plate 1 fixedly mounted inside the protection box, and there are gaps between the two sides of the baffle plate 1 and the inside of the protection box, and the baffle plate 1 is located at the connection point between the delivery pipe and the protection box.

[0011] Preferably, the derivation assembly comprises a docking block 1 hinged to the side of the joint, the docking block 1 is hinged to a docking block 2 via a push rod, and the docking block 2 is rotatably mounted on the side of the protective box.

[0012] A method for using a polyurethane permeable chemical grouting device for a dike foundation, comprising the following steps: S01, placing the joint in a pre-opened hole through a grouting pipe, starting the grouting equipment, allowing the polyurethane liquid to enter the joint from the grouting pipe, and the rubber sleeve 2 prevents the liquid from entering the independent chamber and contacting the inside of the moving component; S02. When the liquid passes through the inside of the delivery pipe, the impact turbine rotates. The transmission pipe drives the moving pipe and the driving shaft to rotate through the transmission belt. The gear at the lower end rolls on the guide tooth plate and forces itself to rotate and move. At this time, the delivery pipe swings. Since the bracket is rotatably connected with the guide plate, when the gear moves, the guide plate rotates at the bottom of the bracket, and the metal block on the inner wall of the moving pipe slides in the guide groove outside the driving shaft. The gear is always engaged with the guide tooth plate. The delivery pipe drives the protection box to swing at the same time to expand the range of spraying polyurethane liquid; S03. When the gear rolls on the inclined part of the guide tooth plate, the driving shaft is located on the bevel of the guide groove, the entire moving component and one end of the conveying component rise, and the two driving shafts are respectively located inside the long sides of each guide groove, the lower end gear is disengaged from the guide tooth plate, and the upper end gear is meshed with the upper end guide tooth plate. Since the two driving shafts are respectively connected to the same conveying component through two transmission belts, the rotation direction of the upper end gear is opposite to that of the lower end gear, forcing the upper end gear to drive the moving component and the conveying component to move in the opposite direction through the guide tooth plate, continuously infusing the polyurethane liquid, and the conveying tube swings back and forth, and finally discharged through the notch on the protective box; S04. The baffle plate 2 is moved by rotating the threaded rod, which pulls the baffle plate 3 through the steel cable, thereby changing the aperture of the rubber sleeve 1 and increasing the pressure. When the protective box swings, since the length of the push rod remains unchanged, the protective box will pull the push rod to an inclined or horizontal state, thereby causing the protective box to move up and down and increase the range of the spray.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention cooperates with structures such as a moving component and a conveying component. When the liquid passes through the conveying component, the moving tube is driven to rotate through a transmission belt. Since the moving tube is matched with the notch on the outer periphery of the driving shaft through the metal block on the inner wall of the moving tube, the driving shaft rotates with it, and the gear at the lower end rotates and moves through the guide tooth plate, forcing the conveying tube to swing. At this time, the guide plate will rotate at the bottom of the bracket, and the metal block on the inner wall of the moving tube will slide in the guide groove outside the driving shaft. This will make the gear always mesh with the guide tooth plate when the conveying tube swings. The conveying tube simultaneously drives the diversion component to swing and thereby expands the range of spraying polyurethane liquid. At the same time, the polyurethane liquid can be more completely injected into the fine cracks of the foundation, thereby improving the strength of the subsequent foundation and enhancing its waterproofness.

[0014] The present invention sets up the coordination of structures such as the moving component and the conveying component. When the gear rolls on the inclined part of the guide tooth plate, the driving shaft is also located on the oblique side of the guide groove. At this time, the moving component as a whole and one end of the conveying component gradually rise, and the two driving shafts are respectively located inside the long sides of each guide groove, and the lower end gear is disengaged from the guide tooth plate, and the upper end gear is meshed with the upper end guide tooth plate. Since the two driving shafts are respectively connected to the same conveying component through two transmission belts, the rotation direction of the upper end gear is opposite to that of the lower end gear, so that the upper end gear drives the moving component and the conveying component to move in the opposite direction through the guide tooth plate, and this cycle is achieved, thereby achieving the purpose of reciprocating swing of the conveying component, and further increasing the range of the diversion component to spray polyurethane liquid.

[0015] The present invention cooperates with structures such as a conveying component and a diversion component. When the conveying pipe injects the polyurethane liquid into the interior of the protective box, it is preferentially blocked by baffle 1, and the liquid flows evenly to the various slots on the protective box, thereby avoiding different hydraulic pressures output from various slots. Before the device works, baffle 2 is moved by rotating the threaded rod, which pulls baffle 3 through a steel cable, thereby changing the aperture of rubber sleeve 1 and increasing the pressure. Furthermore, the liquid can be better injected into small cracks, further enhancing the grouting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the joint of the present invention; Figure 3 It is a schematic diagram of the positional relationship between the conveying component and the moving component of the present invention; Figure 4 It is a schematic diagram of the structural coordination between the conveying component and the moving component of the present invention; Figure 5 A schematic diagram of the internal structure of the delivery pipe of the present invention and its coordination with the moving components; Figure 6 This is an exploded view of the structural disassembly of the conveying component and the moving component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the protective box of the present invention; Figure 8 This is a schematic sectional view of a partial structure of the protective box of the present invention; Figure 9 This is a schematic diagram of the cooperation of the three structures of the protective box and the baffle of the present invention; Figure 10 This is a schematic diagram of the structural cooperation between the flow splitting component and the derivation component of the present invention.

[0017] In the figure: 1, grouting pipe; 2, joint; 3, flow splitting component; 31, protective box; 32, first baffle; 33, second baffle; 34, first rubber sleeve; 35, third baffle; 36, steel cable; 37, threaded rod; 4, derivation component; 41, first docking block; 42, push rod; 43, second docking block; 5, conveying component; 51, conveying pipe; 52, second rubber sleeve; 53, transmission pipe; 54, turbine; 6, moving component; 61, bracket; 62, guide disc; 63, moving pipe; 64, driving shaft; 65, gear; 66, guiding tooth plate; 67, guide groove; 68, transmission belt. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 to 10 shown, the present invention provides a polyurethane permeable chemical grouting device for a dike foundation, including a grouting pipe 1 for infusing polyurethane liquid, and also including; a joint 2 installed at the end of the grouting pipe 1, and two independent chambers are symmetrically arranged on the outer periphery of the joint 2; several conveying components 5 and moving components 6 respectively installed in the independent chambers of the joint 2. Every two moving components 6 staggered and distributed on the outer periphery of each conveying component 5 form a group. The inside of the joint 2 is communicated with the flow splitting component 3 through the conveying component 5; The conveying component 5 includes a conveying pipe 51 with one end ball-jointed to the outside of the joint 2 and the other end communicated with the inside of the joint 2; The motion assembly 6 includes a bracket 61 installed on the outer periphery of the conveying tube 51, the bracket 61 is rotatably connected to the motion tube 63 through a guide plate 62, the motion tube 63 is transmission-connected to the conveying assembly 5 through a transmission belt 68, a driving shaft 64 movably installed in the independent chamber in the joint 2 and movably passing through the motion tube 63, a gear 65 is installed on the outer periphery of the driving shaft 64, a guide groove 67 for the movement of the driving shaft 64 is opened on the inner wall of the independent chamber in the joint 2, and a guide tooth plate 66 meshing with the gear 65 is installed inside the independent chamber; When the polyurethane liquid passes through the conveying assembly 5, it is forced to drive the moving tube 63 to rotate through each transmission belt 68 in each group of moving assemblies 6; The two guide grooves 67 in each set of moving components 6 are distributed in an array in the vertical direction.

[0020] A metal plate that can move in the vertical direction is movably connected inside the independent chamber in the joint 2. The driving shaft 64 is rotatably installed on the metal plate. A number of guide grooves are provided at equal angles around the outer circumference of the driving shaft 64. A metal block that moves inside the guide groove is provided inside the moving tube 63.

[0021] The above scheme is adopted: the joint 2 is placed in the pre-opened hole through the grouting pipe 1 first, and then the grouting equipment is started to allow the polyurethane liquid to enter the joint 2 from the grouting pipe 1, and finally sprayed outward through the conveying component 5 and the diverter component 3. The hole of the diverter component 3 for spraying the liquid is much smaller than the hole at the end of the grouting pipe 1, which increases the grouting pressure, so that it can better enter the cracks of the foundation; When the liquid passes through the conveying assembly 5, the driving belt 68 drives the moving tube 63 to rotate. Since the moving tube 63 is matched with the notch on the outer periphery of the driving shaft 64 through the metal block on the inner wall thereof, the driving shaft 64 rotates with the moving tube 63 and slides on it, but the lower end gear 65 is always in meshing state with the lower end guide tooth plate 66. At this time, the gear 65 at the lower end rotates itself and drives one end of the delivery tube 51 to move, while the other end of the delivery tube 51 is connected to the outer ball shaft of the independent chamber of the joint 2, and the delivery tube 51 will swing; Since the bracket 61 is rotatably connected to the guide plate 62, when the gear 65 moves, the guide plate 62 will rotate at the bottom of the bracket 61, and the metal block on the inner wall of the moving tube 63 will slide in the guide groove outside the active shaft 64, which will make the gear 65 always mesh with the guide tooth plate 66 when the delivery pipe 51 swings. The delivery pipe 51 also drives the diversion component 3 to swing and thereby expand the range of spraying polyurethane liquid. The end of the joint 2 is in a closed state, and the liquid can only be sprayed outward from the diversion component 3. Compared with the existing direct infusion method of grouting pipes, the liquid flow pressure can also be increased. The setting of several diversion components 3 can make the grouting efficiency not lower than the existing grouting efficiency, and more completely infuse the polyurethane liquid into the fine cracks of the foundation, thereby making the grouting effect better, and also improving the strength of the subsequent foundation and enhancing its waterproofness.

[0022] like Figures 1 - 4 As shown, the guide groove 67 is in the shape of a right-angled trapezoid. The lower end guide tooth plate 66 in each group of moving components 6 is composed of tooth plates at both ends. The tooth plate close to the hypotenuse of the right-angled trapezoid is inclined and the inclination angle is equal to the inclination angle of the hypotenuse. When the lower end gear 65 is engaged with the guide tooth plate 66, the upper end gear 65 is disengaged from the guide tooth plate 66, and the two driving shafts 64 are respectively located inside the same length side of each guide groove 67.

[0023] The above scheme is adopted: when the gear 65 rolls on the inclined part of the guide tooth plate 66, the driving shaft 64 is also located on the oblique side of the guide groove 67. At this time, the entire movement component 6 and one end of the conveying component 5 gradually rise, and the two driving shafts 64 are respectively located inside the long sides of each guide groove 67, and the lower end gear 65 is separated from the guide tooth plate 66, and the upper end gear 65 is meshed with the upper end guide tooth plate 66. Since the two driving shafts 64 are respectively connected to the same conveying component 5 through two transmission belts 68, the rotation direction of the upper end gear 65 is opposite to that of the lower end gear 65, thereby realizing that the upper end gear 65 drives the movement component 6 and the conveying component 5 to move in the opposite direction through the guide tooth plate 66; With this cycle, the purpose of reciprocating swing of the conveying component 5 is achieved, and the range of the diversion component 3 spraying the polyurethane liquid is further increased. During the swinging process, the liquid sprayed by the diversion component 3 can contact more cracks in the hole, so that the polyurethane liquid can better enter the cracks, and the subsequent polyurethane liquid can fill more cracks, further improving the grouting effect and efficiency.

[0024] like Figures 1 - 6 As shown, the conveying assembly 5 also includes a transmission pipe 53 rotatably installed in the middle of the conveying pipe 51, and a turbine 54 is installed at the end of the transmission pipe 53. The transmission pipe 53 is connected to the moving pipe 63 through a transmission belt 68. One end of the conveying pipe 51 is located inside the joint 2 and is sealed to the joint 2 through a rubber sleeve 52.

[0025] Adopting the above scheme: when the polyurethane liquid is inside the grouting pipe 1, the second rubber sleeve 52 will prevent the liquid from entering the independent chamber and contacting the inside of the moving component 6, which prevents the polyurethane liquid from solidifying on the moving component 6 after subsequent work stops, and at the same time ensures that the moving component 6 will not get stuck during the working process, thus making the device work more smoothly; When the liquid passes through the inside of the delivery pipe 51, the pressure generated by it impacts the turbine 54 to rotate, the transmission pipe 53 rotates simultaneously and drives the moving pipe 63 to rotate through the transmission belt 68, thereby forcing the moving component 6 to enter the working state. After the grouting work is completed, the moving component 6 also stops working. This can effectively avoid the situation that the remaining polyurethane liquid in the joint 2 continues to be ejected after the grouting work is completed, thus causing waste of resources. And when the device is working, the internal structure is completely driven into the working state by the impact force of the flowing polyurethane liquid, which also reduces the consumption of electricity or other energy sources and makes the device more environmentally friendly.

[0026] As Figures 1 - 10 shown, there are several shunt components 3 and they are symmetrically distributed at equal intervals on the outer periphery of the joint 2. The positions of the shunt components 3, the delivery components 5 and each group of moving components 6 are adapted to each other, and each shunt component 3 is also movably connected to the joint 2 through the derivation component 4.

[0027] The shunt component 3 includes a protective box 31 movably clamped at the outer end of the delivery pipe 51. A second baffle 33 is movably clamped inside the protective box 31. A threaded rod 37 with an end fitting against the side of the second baffle 33 is installed on the outside of the protective box 31. Several notches are equidistantly arranged on the outside of the protective box 31, and a first rubber sleeve 34 is arranged on the notches. Several third baffles 35 located inside each first rubber sleeve 34 are circumferentially and equally angled and hinged on the outside of the protective box 31. Each third baffle 35 is connected to the second baffle 33 through a steel cable 36.

[0028] The shunt component 3 further includes a first baffle 32 fixedly installed inside the protective box 31. There are gaps between both sides of the first baffle 32 and the inside of the protective box 31. The first baffle 32 is located at the connection between the delivery pipe 51 and the protective box 31.

[0029] The derivation component 4 includes a first docking block 41 hinged to the side of the joint 2. The first docking block 41 is hinged to a second docking block 43 through a push rod 42. The second docking block 43 is rotatably installed on the side of the protective box 31.

[0030] Adopting the above scheme: when the delivery pipe 51 infuses the polyurethane liquid into the protective box 31, it is first blocked by the first baffle 32, and the liquid flows evenly to each notch on the protective box 31, avoiding different hydraulic pressures output from each notch. At the same time, it should be noted that the liquid will not directly impact the first rubber sleeve 34, which can effectively reduce the possibility of it being impacted and falling off the protective box 31 due to pressure; When the protective box 31 swings, since the length of the push rod 42 remains unchanged, the protective box 31 will pull the push rod 42 into an inclined or horizontal state, thereby causing the protective box 31 to move up and down. Further, the spraying range of the notch of the protective box 31 is increased.

[0031] Before the device works, by rotating the threaded rod 37, the second baffle 33 moves, and it pulls the third baffle 35 through the steel cable 36, thereby changing the aperture of the first rubber sleeve 34 and increasing the pressure. When facing cracks of different specifications, the aperture of the first rubber sleeve 34 can be controlled to change simultaneously, so as to fit the actual working state and make the device more applicable; When facing cracks with larger gaps, the polyurethane liquid can enter the cracks well. At this time, the aperture of the first rubber sleeve 34 can be controlled to increase, so as to improve the grouting efficiency, enable the grouting work to end quickly, thereby reducing the labor of the staff or shortening the construction period; When the gap is small and the liquid cannot flow smoothly into the gap, the aperture of the first rubber sleeve 34 can be adjusted to decrease to increase the pressure of the liquid flow. Moreover, the design of several first rubber sleeves 34 can increase the probability of directly spraying the liquid into the cracks, thereby improving the grouting effect.

[0032] A method for using a polyurethane permeable chemical grouting device for a levee foundation is as follows; S01. Place the joint 2 in a pre-opened hole through the grouting pipe 1, start the grouting equipment, and make the polyurethane liquid enter the joint 2 from the grouting pipe 1. The second rubber sleeve 52 prevents the liquid from entering the independent chamber and contacting the inside of the moving component 6; S02. When the liquid passes through the inside of the delivery pipe 51, it impacts the turbine 54 to rotate. The transmission pipe 53 drives the moving pipe 63 and the driving shaft 64 to rotate through the transmission belt 68. The gear 65 at the lower end rolls on the guiding tooth plate 66 and forces itself to rotate and move. At this time, the delivery pipe 51 swings. Since the bracket 61 is rotatably connected to the guiding disk 62, when the gear 65 moves, the guiding disk 62 rotates at the bottom of the bracket 61, and the metal block on the inner wall of the moving pipe 63 slides in the guiding groove outside the driving shaft 64. The gear 65 is always engaged with the guiding tooth plate 66, and the delivery pipe 51 simultaneously drives the protective box 31 to swing and thereby expands the range of spraying the polyurethane liquid; S03. When the gear 65 rolls on the inclined part of the guiding tooth plate 66, the driving shaft 64 is located on the hypotenuse of the guiding groove 67. The entire movement assembly 6 and one end of the conveying assembly 5 rise. The two driving shafts 64 are respectively located inside the long sides of the respective guiding grooves 67. The lower gear 65 disengages from the guiding tooth plate 66, and the upper gear 65 engages with the upper guiding tooth plate 66. Since the two driving shafts 64 are respectively connected to the same conveying assembly 5 through two transmission belts 68, the rotation direction of the upper gear 65 is opposite to that of the lower gear 65, forcing the upper gear 65 to drive the movement assembly 6 and the conveying assembly 5 to move in the reverse direction through the guiding tooth plate 66, continuously infusing polyurethane liquid. The conveying pipe 51 swings reciprocally and finally discharges through the notch on the protective box 31. S04. By rotating the threaded rod 37, the second baffle 33 moves. It pulls the third baffle 35 through the steel cable 36, thereby changing the aperture of the first rubber sleeve 34 and increasing the pressure. When the protective box 31 swings, since the length of the push rod 42 remains unchanged, the protective box 31 will pull the push rod 42 into an inclined or horizontal state, thereby causing the protective box 31 to move up and down and increasing the spraying range.

[0033] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane infiltration chemical grouting device for a dike foundation, comprising a grouting pipe (1) for injecting polyurethane liquid, characterized in that: Also includes; A joint (2) installed at the end of the grouting pipe (1), wherein two independent chambers are symmetrically arranged on the outer circumference of the joint (2); A plurality of conveying components (5) and moving components (6) are respectively installed in independent chambers inside the joint (2), and each two moving components (6) staggeredly distributed on the periphery of the conveying components (5) form a group, and the interior of the joint (2) is connected to the diversion component (3) through the conveying component (5); The conveying assembly (5) comprises a conveying pipe (51) having a ball shaft at one end mounted on the outside of the joint (2) and the other end communicating with the inside of the joint (2); The motion assembly (6) comprises a bracket (61) mounted on the outer periphery of the conveying tube (51); the bracket (61) is rotatably connected to the motion tube (63) via a guide plate (62); the motion tube (63) is transmission-connected to the conveying assembly (5) via a transmission belt (68); a driving shaft (64) movably penetrating the motion tube (63) is movably mounted in the independent chamber in the joint (2); a gear (65) is mounted on the outer periphery of the driving shaft (64); a guide groove (67) for the movement of the driving shaft (64) is formed on the inner wall of the independent chamber in the joint (2); and a guide tooth plate (66) meshing with the gear (65) is mounted inside the independent chamber; When the polyurethane liquid passes through the conveying assembly (5), it is forced to drive the moving tube (63) to rotate through each transmission belt (68) in each group of moving assemblies (6); The two guide grooves (67) in each group of the motion components (6) are distributed in an array in the vertical direction.

2. The polyurethane infiltration chemical grouting device for dike foundation according to claim 1 is characterized in that: A metal plate capable of moving in the vertical direction is movably clamped inside the independent chamber in the joint (2); the driving shaft (64) is rotatably mounted on the metal plate; a plurality of guide grooves are provided at equal angles in the circumferential direction of the outer circumference of the driving shaft (64); and a metal block that moves inside the guide groove is provided inside the moving tube (63).

3. The polyurethane infiltration chemical grouting device for dike foundation according to claim 2 is characterized in that: The guide groove (67) is in the shape of a right-angled trapezoid. The lower guide tooth plate (66) in each group of the motion components (6) is composed of tooth plates at both ends. The tooth plate close to the hypotenuse of the right-angled trapezoid is inclined and the inclination angle is equal to the inclination angle of the hypotenuse. When the lower gear (65) is engaged with the guide tooth plate (66), the upper gear (65) is disengaged from the guide tooth plate (66). The two driving shafts (64) are respectively located inside the same length side of each guide groove (67).

4. The polyurethane infiltration chemical grouting device for dike foundation according to claim 3 is characterized in that: The conveying assembly (5) further comprises a transmission pipe (53) rotatably mounted in the middle of the conveying pipe (51); a turbine (54) is rotatably mounted at the end of the transmission pipe (53); the transmission pipe (53) is transmission-connected to the moving pipe (63) via a transmission belt (68); one end of the conveying pipe (51) is located inside the joint (2) and is sealingly connected to the joint (2) via a second rubber sleeve (52).

5. The polyurethane infiltration chemical grouting device for dike foundation according to claim 4, characterized in that: There are a plurality of the flow diversion components (3) which are symmetrically and equidistantly distributed on the periphery of the joint (2); the positions of the flow diversion components (3), the conveying components (5) and the groups of motion components (6) are adapted to each other; and each of the flow diversion components (3) is also movably connected to the joint (2) via a derivation component (4).

6. The polyurethane infiltration chemical grouting device for dike foundation according to claim 5, characterized in that: The flow dividing assembly (3) comprises a protection box (31) movably connected to the outer end of the conveying pipe (51), a baffle plate 2 (33) being movably connected inside the protection box (31), a threaded rod (37) having an end portion fitted to the side surface of the baffle plate 2 (33) being threadedly mounted on the outer side of the protection box (31), a plurality of notches being equidistantly arranged on the outer side of the protection box (31), a rubber sleeve 1 (34) being arranged on the notch, a plurality of baffle plates 3 (35) being circumferentially hinged at equal angles on the outer side of the protection box (31) and located inside each rubber sleeve 1 (34), each of the baffle plates 3 (35) being connected to the baffle plate 2 (33) via a steel cable (36).

7. The polyurethane infiltration chemical grouting device for dike foundation according to claim 6, characterized in that: The flow distribution component (3) further comprises a baffle plate 1 (32) fixedly mounted inside the protection box (31), gaps being present between two sides of the baffle plate 1 (32) and the inside of the protection box (31), and the baffle plate 1 (32) is located at the connection point between the delivery pipe (51) and the protection box (31).

8. The polyurethane infiltration chemical grouting device for dike foundation according to claim 7, characterized in that: The derivation assembly (4) comprises a docking block 1 (41) hinged to a side of the joint (2); the docking block 1 (41) is hinged to a docking block 2 (43) via a push rod (42); and the docking block 2 (43) is rotatably mounted on a side of the protection box (31).

9. A method for using a polyurethane infiltration chemical grouting device for a dike foundation, which is applied to the polyurethane infiltration chemical grouting device for a dike foundation as claimed in claim 8, characterized in that: As follows: S01, placing the joint (2) in a pre-opened hole through a grouting pipe (1), starting the grouting equipment, allowing the polyurethane liquid to enter the joint (2) from the grouting pipe (1), and the rubber sleeve (52) preventing the liquid from entering the independent chamber and contacting the inside of the moving component (6); S02. When the liquid passes through the inside of the delivery pipe (51), the impact turbine (54) rotates. The transmission pipe (53) drives the moving pipe (63) and the driving shaft (64) to rotate through the transmission belt (68). The gear (65) at the lower end rolls on the guide tooth plate (66) and forces itself to rotate and move. At this time, the delivery pipe (51) swings. Since the bracket (61) and the guide plate (62) are rotatably connected, when the gear (65) moves, the guide plate (62) rotates at the bottom of the bracket (61), and the metal block on the inner wall of the moving pipe (63) slides in the guide groove outside the driving shaft (64). The gear (65) is always engaged with the guide tooth plate (66). The delivery pipe (51) drives the protection box (31) to swing at the same time, thereby expanding the range of spraying polyurethane liquid; S03, when the gear (65) rolls on the inclined part of the guide tooth plate (66), the driving shaft (64) is located on the oblique side of the guide groove (67), the entire moving component (6) and one end of the conveying component (5) rise, and the two driving shafts (64) are respectively located inside the long sides of each guide groove (67), the lower end gear (65) is disengaged from the guide tooth plate (66), and the upper end gear (65) is meshed with the upper end guide tooth plate (66). Since the two driving shafts (64) are respectively connected to the same conveying component (5) through two transmission belts (68), the rotation direction of the upper end gear (65) is opposite to that of the lower end gear (65), forcing the upper end gear (65) to drive the moving component (6) and the conveying component (5) to move in the opposite direction through the guide tooth plate (66), and the polyurethane liquid is continuously infused, and the conveying tube (51) swings back and forth, and finally discharged through the notch on the protective box (31); S04. The baffle plate 2 (33) is moved by rotating the threaded rod (37), which pulls the baffle plate 3 (35) through the steel cable (36), thereby changing the aperture of the rubber sleeve 1 (34) and increasing the pressure. When the protection box (31) swings, since the length of the push rod (42) remains unchanged, the protection box (31) will pull the push rod (42) to an inclined or horizontal state, thereby causing the protection box (31) to move up and down and increase the range of the spray.

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