Polyurethane penetration chemical grouting device and method for embankment foundation

Abstract

The present invention belongs to the technical field of grouting for dike foundations, and discloses a polyurethane permeation chemical grouting device and method for dike foundations, including a grouting pipe for injecting polyurethane liquid. The present invention utilizes a motion component and a conveying component to cooperate with each other. When the liquid passes through the conveying component, the motion pipe is driven to rotate via a transmission belt. Since the metal block on the inner wall of the motion pipe is adapted to the notch on the outer periphery of the driving shaft, the driving shaft rotates with it, and the gear at the lower end rotates and moves via a guide tooth plate, forcing the conveying pipe to swing. At this time, the guide plate rotates to the bottom of the bracket, which ensures that the gear always engages with the guide tooth plate when the conveying pipe swings. The conveying pipe simultaneously drives the diversion component to swing, thereby expanding the range of the polyurethane liquid injection, and can more completely inject the polyurethane liquid into the fine cracks of the foundation, thereby improving the strength of the subsequent foundation and enhancing its waterproofness.

Description

Technical Field

[0001] The invention belongs to the technical field of embankment foundation grouting, and in particular relates to a polyurethane permeation type chemical grouting device and method for an embankment foundation. Background Art

[0002] The levee foundation refers to the soil or rock layer that supports the levee structure, bears the weight of the levee and resists external forces such as water erosion and seepage pressure. Its stability is directly related to the overall safety of the levee. If there are weak layers, cracks or leakage channels in the foundation, it may cause the levee to sink, pipe burst or even collapse. During the long-term use of the levee, its foundation is very likely to crack due to the impact of water flow, thereby reducing the strength of the foundation. In existing technical solutions, it is usually preferred to open holes in the foundation and inject polyurethane liquid into the foundation through grouting pipes to maintain the base. This liquid will expand when it comes into contact with water and form a dense waterproof layer, thereby effectively blocking the leakage channel;

[0003] However, it should be noted that the existing technology only performs grouting through a grouting pipe, and there may still be relatively small cracks or channels in the foundation. At this time, there is air in the foundation, that is, air pressure, and the polyurethane liquid is relatively thick, which will cause the polyurethane liquid to be unable to fully penetrate into the cracks. When the polyurethane liquid expands, it cannot penetrate into the gaps, thereby reducing the subsequent waterproofing effect. The strength of the foundation is also affected, and ultimately affecting the overall safety of the embankment. Therefore, it is necessary to provide a polyurethane penetration chemical grouting device and method for the embankment foundation. Summary of the Invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a polyurethane penetration chemical grouting device and method for embankment foundation, which solves the problem that there is not too much air in the foundation and the polyurethane liquid is relatively thick. The polyurethane liquid cannot penetrate completely into the cracks, thereby reducing the subsequent waterproofing effect and affecting the foundation strength.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a polyurethane permeation chemical grouting device for embankment foundation, comprising a grouting pipe for injecting polyurethane liquid, and further comprising;

[0006] A joint installed at the end of the grouting pipe, wherein two independent chambers are symmetrically arranged on the outer circumference of the joint;

[0007] Several conveying components and motion components are respectively installed in independent chambers inside the joint, and each two motion components staggered around the periphery of each conveying component constitute a group, and the interior of the joint is connected to the diversion component through the conveying component;

[0008] The delivery assembly includes a delivery tube with a ball shaft at one end mounted on the outside of the joint and the other end communicating with the inside of the joint;

[0009] The motion assembly includes a bracket mounted on the outer periphery of the conveying tube, the bracket being rotatably connected to the motion tube via a guide plate, the motion tube being transmission-connected to the conveying assembly via a transmission belt, a driving shaft movably mounted in the independent chamber of the joint and running through the motion tube, a gear being mounted on the outer periphery of the driving shaft, a guide groove for the movement of the driving shaft being formed on the inner wall of the independent chamber of the joint, and a guide tooth plate meshing with the gear being mounted inside the independent chamber;

[0010] 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;

[0011] The two guide slots in each group of the motion components are distributed in a vertical array.

[0012] Preferably, a metal plate that can move in the vertical direction is movably connected inside the independent chamber in the joint, the active shaft is rotatably mounted on the metal plate, a plurality of guide grooves are provided at equal angles around the outer circumference of the active shaft, and a metal block that moves inside the guide groove is provided inside the moving tube.

[0013] 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 gear at the lower end is engaged with the guide tooth plate, the gear at the upper end is disengaged from the guide tooth plate, and the two driving shafts are respectively located inside the same length side of each guide groove.

[0014] Preferably, the conveying assembly also includes a transmission tube rotatably installed in the middle of the conveying pipe, a turbine is installed at the end of the transmission tube, the transmission tube is connected to the moving tube through a transmission belt, and one end of the conveying tube is located inside the joint and is sealed to the joint through a rubber sleeve.

[0015] Preferably, there are several diversion components that are symmetrically and equidistantly distributed on the periphery of the joint. The positions of the diversion components, conveying components and each group of motion components are adapted to each other, and each diversion component is also movably connected to the joint through a deduction component.

[0016] Preferably, the diversion assembly includes a protective box that is movably clamped to the outer end of the conveying pipe, and the protective box is movably clamped with baffle 2 inside. The outer thread of the protective box is installed with a threaded rod whose end is fitted to the side of baffle 2. Several notches are equidistantly arranged on the outer side of the protective box, and a rubber sleeve 1 is provided on the notch. Several baffles 3 located inside each rubber sleeve 1 are hinged at equal angles in a circumferential direction on the outer side of the protective box, and each of the baffles 3 is connected to baffle 2 by a steel cable.

[0017] Preferably, the diversion component further comprises a baffle 1 fixedly mounted inside the protection box, with gaps existing between two sides of the baffle 1 and the inside of the protection box, and the baffle 1 is located at the connection point between the delivery pipe and the protection box.

[0018] Preferably, the derivation assembly includes a docking block 1 hinged to the side of the joint, the docking block 1 is hinged to the docking block 2 through a push rod, and the docking block 2 is rotatably installed on the side of the protective box.

[0019] A method for using a polyurethane penetrating chemical grouting device for a dike foundation comprises the following steps:

[0020] S01. Place the joint in a pre-drilled hole through a grouting pipe, start the grouting equipment, and allow polyurethane liquid to enter the joint through the grouting pipe. The rubber sleeve 2 prevents the liquid from entering the independent chamber and contacting the interior of the moving component.

[0021] S02. As the liquid passes through the delivery pipe, the turbine rotates. The transmission pipe drives the moving pipe and the driving shaft via the transmission belt. The gear at the lower end rolls on the guide tooth plate, forcing it to rotate and move. At this time, the delivery pipe swings. Because the bracket is rotatably connected to 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 simultaneously drives the protective box to swing, thereby expanding the range of the polyurethane liquid spray.

[0022] S03. When the gear rolls on the inclined portion of the guide tooth plate, the driving shaft is located on the oblique side of the guide groove, the entire motion assembly and one end of the conveying assembly rise, and the two driving shafts are respectively located inside the long sides of each guide groove. The lower end gear disengages from the guide tooth plate, and the upper end gear engages with the upper end guide tooth plate. Since the two driving shafts are respectively connected to the same conveying assembly 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 motion assembly and the conveying assembly 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;

[0023] 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, causing the protective box to move up and down and increase the range of the spray.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention cooperates with structures such as a moving component and a conveying component. When the liquid passes through the conveying component, it drives the moving tube to rotate through the transmission belt. Since the metal block on the inner wall of the moving tube is adapted to the notch on the outer periphery of the driving shaft, 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 to 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 ensure that when the conveying tube swings, the gear is always engaged with the guide tooth plate. The conveying tube simultaneously drives the diversion component to swing and thereby expand the range of the polyurethane liquid spraying. 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.

[0026] The present invention cooperates with structures such as a motion component and a 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 motion 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 engaged 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, and the upper end gear drives the motion component and the conveying component to move in the opposite direction through the guide tooth plate. In this cycle, the purpose of reciprocating swing of the conveying component is achieved, and the range of the diversion component to spray polyurethane liquid is further increased.

[0027] 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, avoiding different hydraulic pressures output by each slot. Before the device works, baffle 2 is moved by rotating the threaded rod, which pulls baffle 3 through the steel cable, thereby changing the aperture of the rubber sleeve 1 and increasing the pressure. Furthermore, the liquid can be better poured into small cracks, further enhancing the grouting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0029] Figure 2 Schematic diagram of the internal structure of the connector of the present invention;

[0030] Figure 3 This is a schematic diagram of the positional relationship between the conveying component and the moving component of the present invention;

[0031] Figure 4 This is a schematic diagram of the structural coordination between the conveying component and the motion component of the present invention;

[0032] Figure 5 A schematic diagram of the internal structure of the delivery pipe of the present invention and its coordination with the motion assembly;

[0033] Figure 6 This is a schematic diagram of the exploded structure of the conveying component and the moving component of the present invention;

[0034] Figure 7 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0035] Figure 8 It is a schematic cross-sectional view of a local structure of the protection box of the present invention;

[0036] Figure 9 This is a schematic diagram of the coordination of the protective box and the baffle structure of the present invention;

[0037] Figure 10 It is a schematic diagram of the structural coordination of the diversion component and the derivation component of the present invention.

[0038] In the figure: 1. Grouting pipe; 2. Joint; 3. Diverter assembly; 31. Protective box; 32. Baffle 1; 33. Baffle 2; 34. Rubber sleeve 1; 35. Baffle 3; 36. Steel cable; 37. Threaded rod; 4. Guide assembly; 41. Docking block 1; 42. Push rod; 43. Docking block 2; 5. Conveying assembly; 51. Conveying pipe; 52. Rubber sleeve 2; 53. Transmission pipe; 54. Turbine; 6. Moving assembly; 61. Bracket; 62. Guide plate; 63. Moving pipe; 64. Driving shaft; 65. Gear; 66. Guide tooth plate; 67. Guide groove; 68. Transmission belt. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] like Figures 1 to 10 As shown, the present invention provides a polyurethane permeation chemical grouting device for embankment foundation, comprising a grouting pipe 1 for injecting polyurethane liquid, and further comprising;

[0041] A joint 2 is installed at the end of the grouting pipe 1, and two independent chambers are symmetrically arranged on the outer periphery of the joint 2;

[0042] Several conveying components 5 and motion components 6 are respectively installed in independent chambers of the joint 2, and each two motion components 6 staggeredly distributed on the periphery of each conveying component 5 constitute a group. The interior of the joint 2 is connected to the diversion component 3 through the conveying component 5;

[0043] The conveying assembly 5 includes a conveying pipe 51 with 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;

[0044] The motion assembly 6 includes 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 is movably mounted in the independent chamber of the joint 2 and movably extends through the motion tube 63. 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 of the joint 2. A guide tooth plate 66 is mounted inside the independent chamber to mesh with the gear 65.

[0045] 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;

[0046] The two guide slots 67 in each set of motion components 6 are distributed in an array in the vertical direction.

[0047] 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. Several guide grooves are opened at equal angles around the outer circumference of the driving shaft 64. A metal block that moves inside the guide groove is set inside the moving tube 63.

[0048] The above solution 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 to be 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 and allows it to better penetrate into the cracks of the foundation.

[0049] When the liquid passes through the conveying assembly 5, the driving tube 63 is driven to rotate by the transmission belt 68. Since the metal block on the inner wall of the moving tube 63 is adapted to the notch on the outer periphery of the driving shaft 64, the driving shaft 64 rotates with the moving tube 63 and slides on it. However, the lower end gear 65 and the lower end guide gear plate 66 are always in meshing state.

[0050] 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;

[0051] 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 engage 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 the polyurethane liquid spraying. 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 grouting pipe direct infusion method, 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.

[0052] like Figure 1-Figure 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 set of 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 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.

[0053] With the above solution: when the gear 65 rolls on the inclined portion 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 motion 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, while the lower end gear 65 is disengaged from the guide tooth plate 66, and the upper end gear 65 is engaged 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 motion component 6 and the conveying component 5 to move in opposite directions through the guide tooth plate 66;

[0054] With this cycle, the purpose of the 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.

[0055] like Figures 1-6As shown, the conveying assembly 5 also includes a transmission tube 53 rotatably installed in the middle of the conveying tube 51, and a turbine 54 is installed at the end of the transmission tube 53. The transmission tube 53 is connected to the moving tube 63 through a transmission belt 68. One end of the conveying tube 51 is located inside the joint 2 and is sealed to the joint 2 through a rubber sleeve 52.

[0056] With the above solution, 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 interior of the moving component 6. This prevents the polyurethane liquid from solidifying on the moving component 6 after the subsequent stoppage of work, and also ensures that the moving component 6 will not jam during operation, thereby making the device work more smoothly.

[0057] When the liquid passes through the inside of the delivery pipe 51, the pressure it generates impacts the turbine 54 to rotate, and the transmission pipe 53 rotates at the same time 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 where the remaining polyurethane liquid in the joint 2 is continuously sprayed out after the grouting work is completed, thereby causing waste of resources. When the device is working, the internal structure is driven into the working state completely by the impact force of the flow of polyurethane liquid, which also reduces the consumption of electricity or other energy, making the device more environmentally friendly.

[0058] like Figures 1-10 As shown, there are several diversion components 3 that are equidistantly and symmetrically distributed on the periphery of the joint 2. The positions of the diversion components 3, the conveying components 5 and the groups of motion components 6 are adapted to each other. Each diversion component 3 is also movably connected to the joint 2 through the deduction component 4.

[0059] The diversion component 3 includes a protective box 31 which is movably connected to the outer end of the conveying pipe 51, and a baffle 2 33 is movably connected inside the protective box 31. The outer thread of the protective box 31 is installed with a threaded rod 37 whose end is fitted to the side of the baffle 2 33. Several notches are equidistantly arranged on the outer side of the protective box 31, and a rubber sleeve 1 34 is provided on the notch. Several baffles 35 located inside each rubber sleeve 1 34 are hinged at equal angles in an annular direction on the outer side of the protective box 31, and each baffle 35 is connected to the baffle 2 33 by a steel cable 36.

[0060] The diversion component 3 further includes a baffle 1 32 fixedly mounted inside the protection box 31 . There are gaps between the two sides of the baffle 1 32 and the inside of the protection box 31 . The baffle 1 32 is located at the connection point between the delivery pipe 51 and the protection box 31 .

[0061] The derivation assembly 4 includes a docking block 1 41 hinged to the side of the joint 2 . The docking block 1 41 is hinged to a docking block 2 43 via a push rod 42 . The docking block 2 43 is rotatably mounted on the side of the protective box 31 .

[0062] With the above solution, after the delivery tube 51 injects the polyurethane liquid into the protective box 31, it is first blocked by the baffle 1 32, and the liquid flows evenly to the various slots on the protective box 31, thus avoiding different hydraulic pressure outputs from each slot. It should also be noted that the liquid will not directly impact the rubber sleeve 1 34, which can effectively reduce the possibility of the liquid being impacted and falling off the protective box 31 due to pressure.

[0063] 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, further increasing the range of the protection box 31 slot spraying.

[0064] Before the device starts working, the second baffle 33 is moved by rotating the threaded rod 37, which pulls the third baffle 35 through the steel cable 36, thereby changing the aperture of the rubber sleeve 34 and increasing the pressure. When facing cracks of different specifications, the aperture of the rubber sleeve 34 can be controlled to change simultaneously, thereby matching the actual working conditions and making the device more applicable.

[0065] When facing cracks with larger gaps, the polyurethane liquid can easily enter the cracks. At this time, the diameter of the rubber sleeve 34 can be controlled to increase, thereby improving the efficiency of grouting and completing the grouting work more quickly, thereby reducing the labor of the staff or shortening the construction period.

[0066] When the gap is small and the liquid cannot flow smoothly into the gap, the diameter of the rubber sleeve 34 can be adjusted to be smaller to increase the pressure of the liquid flow. The design of several rubber sleeves 34 can increase the probability of the liquid being directly injected into the crack, thereby improving the grouting effect.

[0067] A method for using a polyurethane penetrating chemical grouting device for a dike foundation comprises the following steps:

[0068] S01, place the joint 2 in the pre-opened hole through the grouting pipe 1, start the grouting equipment, and allow the polyurethane liquid to enter the joint 2 from the grouting pipe 1. The rubber sleeve 52 prevents the liquid from entering the independent chamber and contacting the interior of the moving component 6;

[0069] S02. When the liquid passes through 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, forcing itself to rotate and move. At this time, the delivery pipe 51 swings. Since the bracket 61 is rotatably connected to the guide plate 62, 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 simultaneously drives the protective box 31 to swing, thereby expanding the range of the polyurethane liquid spraying;

[0070] 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 motion 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 disengages from the guide tooth plate 66, and the upper end gear 65 engages 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 motion component 6 and the conveying component 5 to move in the opposite direction through the guide tooth plate 66, continuously infusing the polyurethane liquid, and the conveying tube 51 swings back and forth, and finally discharged through the notch on the protective box 31;

[0071] S04. The baffle plate 2 33 is moved by rotating the threaded rod 37, which pulls the baffle plate 35 through the steel cable 36, thereby changing the aperture of the rubber sleeve 1 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 to an inclined or horizontal state, thereby causing the protective box 31 to move up and down and increase the range of the spray.

[0072] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0073] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane permeation chemical grouting device for 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); Several conveying components (5) and motion components (6) are respectively installed in independent chambers inside the joint (2), and each two motion 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) with 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) includes 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 of 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 opened on the inner wall of the independent chamber of 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 slots (67) in each group of the motion components (6) are distributed in a vertical array; The guide groove (67) is in the shape of a right-angled trapezoid. The lower end 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 end gear (65) is engaged with the guide tooth plate (66), the upper end 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); the independent chamber in the joint (2) is movably connected with a metal plate that can move in the vertical direction. The driving shaft (64) is rotatably mounted on the metal plate. The outer periphery of the driving shaft (64) is provided with a plurality of guide grooves at equal angles. The interior of the motion tube (63) is provided with a metal block that moves inside the guide groove.

2. The polyurethane infiltration chemical grouting device for embankment foundation according to claim 1, characterized in that: The conveying assembly (5) further comprises a transmission tube (53) rotatably mounted in the middle of the conveying tube (51), a turbine (54) being transmission-mounted at the end of the transmission tube (53), the transmission tube (53) being transmission-connected to the motion tube (63) via a transmission belt (68), one end of the conveying tube (51) being located inside the joint (2) and being sealingly connected to the joint (2) via a second rubber sleeve (52).

3. The polyurethane infiltration chemical grouting device for embankment foundation according to claim 2, characterized in that: There are several diversion components (3) that are symmetrically distributed at equal distances on the periphery of the joint (2). The diversion components (3), the conveying components (5) and the positions of the groups of motion components (6) are adapted to each other. Each of the diversion components (3) is also movably connected to the joint (2) through the derivation component (4).

4. The polyurethane infiltration chemical grouting device for embankment foundation according to claim 3, characterized in that: The diversion assembly (3) includes a protective box (31) movably connected to the outer end of the conveying pipe (51), the interior of the protective box (31) is movably connected to a baffle 2 (33), the outer side of the protective box (31) is threadedly mounted with a threaded rod (37) whose end is fitted to the side of the baffle 2 (33), the outer side of the protective box (31) is equidistantly provided with a plurality of notches, the notches are provided with a rubber sleeve 1 (34), the outer side of the protective box (31) is hinged with a plurality of baffles 3 (35) located inside each rubber sleeve 1 (34) at equal angles in an annular direction, and each of the baffles 3 (35) is connected to the baffle 2 (33) via a steel cable (36).

5. The polyurethane permeation chemical grouting device for embankment foundation according to claim 4, characterized in that: The diversion assembly (3) further comprises a baffle plate 1 (32) fixedly mounted inside the protection box (31), with gaps existing 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).

6. The polyurethane permeation chemical grouting device for embankment foundation according to claim 5, characterized in that: The derivation assembly (4) includes a docking block 1 (41) hinged to the 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 the side of the protective box (31).

7. A method for using a polyurethane penetrating chemical grouting device for a dike foundation, which is applied to the polyurethane penetrating chemical grouting device for a dike foundation according to any one of claims 1 to 6, characterized in that: As follows: S01, placing the joint (2) in a pre-opened hole through the 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 interior of the moving component (6); S02. When the liquid passes through the inside of the delivery pipe (51), the impact turbine (54) rotates, and the transmission pipe (53) drives the motion 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 rotationally 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 motion 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 the polyurethane liquid spraying; S03. When the gear (65) rolls on the inclined portion of the guide tooth plate (66), the driving shaft (64) is located on the oblique side of the guide groove (67), the entire motion 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 engaged 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 the rotation direction of the lower end gear (65), forcing the upper end gear (65) to drive the motion component (6) and the conveying component (5) to move in the opposite direction through the guide tooth plate (66), continuously infusing the polyurethane liquid, 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 protective box (31) swings, since the length of the push rod (42) remains unchanged, the protective box (31) will pull the push rod (42) to an inclined or horizontal state, thereby causing the protective box (31) to move up and down and increase the range of the spray.

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