On-site grouting device

Abstract

The present invention relates to an on-site grouting device, including a slurry pump body connected to a multi-section grouting part through a grouting delivery pipe, a plurality of resistance parts are provided on the base, and a lifting bracket is also provided on the base, the lifting bracket includes a platform, a first through hole is provided in the middle of the platform, a compression and expansion part is provided at the first through hole, the multi-section grouting part is arranged at the first through hole, and the up and down movement of the multi-section grouting part is achieved by the compression and expansion part and the lifting bracket, the multi-section grouting part is formed by interconnecting multiple sections of grouting pipes, the multiple sections of grouting pipes include a shell, a second through hole is provided on the side wall of the shell, an extension rotating frame is provided in the shell, the extension rotating frame is connected to the driving part, the extension rotating frame is driven to pass through and drive the shell to realize overall rotation, the extension rotating frame is provided with multiple grouting output ports, the grouting device can improve grouting efficiency, reduce grouting pipe blockage, fully stir the slurry and sludge, obtain better flocculation and sedimentation effects, and achieve better dehydration of the sludge.

Description

Technical Field

[0001] The invention belongs to the technical field related to geotechnical engineering and water conservancy engineering research, and particularly relates to an on-site grouting device. Background Art

[0002] In recent years, with the rapid development of urbanization in coastal areas, large-scale land reclamation and construction projects have continued to unfold. Fill sludge and engineering mud have high water content, large porosity, and high compressibility. Proper handling of these sludges significantly impacts project progress.

[0003] Application number 202110430103.1 discloses "an on-site grouting system and a method for vacuum preloading combined grouting and flocculation sludge reinforcement". Since drainage boards are laid in the early stage when treating sludge, the sludge is sprayed into the drainage system under the action of a vacuum pump. The sludge particles are usually fine, which will cause blockage in the drainage system, resulting in poor vacuum preloading effect. In the above application, the sludge is flocculated before laying the drainage boards to turn the silt particles into large particles to reduce the blockage of the drainage system. However, the above application only injects flocculants into the sludge, and does not achieve sufficient contact and stirring between the flocculant and the sludge through the structure of the grouting system, resulting in insufficient mixing of the mud and the flocculant, and the small solid particles in the mud are difficult to flocculate and produce floccules. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an on-site grouting device, which can improve the grouting efficiency, reduce the blockage of the grouting pipe, fully stir the slurry and silt, obtain better flocculation and sedimentation effects, and achieve better dehydration of the silt.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an on-site grouting device, comprising a movable engineering machinery vehicle and a slurry pump body, the movable engineering machinery vehicle comprising a base with a driving wheel, the slurry pump body being connected to a multi-segment grouting member via a grouting delivery pipe, a grouting port being provided in the middle of the base, a plurality of resisting members being provided on the base, the resisting members being provided along the periphery of the grouting port, a lifting bracket being further provided on the base, the lifting bracket comprising a platform, a first through hole being provided in the middle of the platform, the first through hole being corresponding to the grouting port, a compression expansion member being provided at the first through hole, the The multi-section grouting part is arranged at the first through hole, and the up and down movement of the multi-section grouting part is achieved by compressing the expansion part and the lifting bracket. The multi-section grouting part is formed by multiple sections of grouting pipes connected to each other. The multiple sections of grouting pipes include a shell, and the side wall of the shell is provided with a second through hole. The second through hole is covered with an elastic film. An extension rotating frame is provided in the shell, and the extension rotating frame can pass through the elastic film to fully stir and contact the silt. The extension rotating frame is connected to the driving part, which drives the extension rotating frame to pass through and drive the shell to realize overall rotation. The extension rotating frame is provided with multiple grouting output ports.

[0006] Furthermore, the second through hole is covered with an elastic film.

[0007] Furthermore, the compression and expansion component includes a groove body provided on the side wall of the first through hole, and a powered electromagnet and a first magnet are arranged in the groove body. The powered electromagnet has two end faces that magnetically repel each other, and conversion rods are extended at both ends of the powered electromagnet. The conversion rod is used to convert the directions of the two end faces of the powered electromagnet. A slide rail is provided on the side of the groove body, and a cross bar is provided on both sides of the first magnet. The end of the cross bar is slidably connected to the slide rail. When the multi-section grouting component is pressed down, the first magnet is attracted and will be separated from the shell along the slide rail path; when the multi-section grouting component is taken out, the direction of the powered electromagnet is converted by the conversion rod, and the first magnet and the shell attract each other.

[0008] Furthermore, the extension rotating frame includes a triangular shell and multiple independent arc rods in the shell, and multiple ends of the arc rods are extended into the interior of the shell to provide extension rods, and support rods are extended from the three top corners of the triangular shell to resist each other with the internal end surface of the shell, and the three side end surfaces of the triangular shell are provided with path channels, and a circular ring is provided at one end of the extension rod passing through the path channel, and a connecting shaft is passed through the circular ring, and a first gear is provided at both ends of the connecting shaft, and a rotating plate is provided in the middle of the triangular shell, and a joint is provided on the upper end of the rotating plate, and an interface is provided at the lower end, and the rotating plate is connected to the driving part, and the rotating plate rotates to push the extension rod to move along the path channel, and rotating parts are provided at the ends of the path channel, and the rotating parts move synchronously through the transmission belt.

[0009] Furthermore, the rotating member includes a second gear that meshes with the first gear, the second gear is connected to the rotating rod, the upper end of the rotating rod is sleeved with a synchronous wheel, the upper end of the rotating rod is provided with a joint, and the lower end is provided with an interface. The rotating rod is connected to the driving member, and the rotating rod rotates, and the arc rod rotates with the shell.

[0010] Furthermore, the end of the arc rod is conical, and a slurry inlet is provided on multiple arc rods. The slurry inlet is a three-way pipe mouth, one end of which is connected to the grouting delivery pipe, one end is connected to the slurry inlet of the next grouting part, and one end is connected to the arc rod. The grouting output port is set on the arc rod.

[0011] Furthermore, the blocking member includes a vertical rod, the height of the vertical rod is lower than the lowest height of the lifting bracket, a support arm is passed through the vertical rod, the support arm and the vertical rod are threadedly adjusted, and the end surface of the support arm that fits the shell is a rough surface.

[0012] Beneficial effects of the present invention:

[0013] 1. When the on-site grouting device is used to treat silt, the flocculant is infiltrated into the silt through the on-site grouting device. The flocculant and silt are fully stirred at a certain speed through the on-site grouting device to maximize the effect of the flocculant and achieve better flocculation and sedimentation. This is to pre-treat the silt for later use of "vacuum preloading technology" or "vacuum loading combined preloading method" to reinforce the silt, avoid silt blocking the drainage system and reduce the effect of vacuum preloading.

[0014] 2. The extension rotating frame is provided inside the grouting pipe, which reduces the blockage of the grouting outlet by silt during the rotation process. The rotation of the extension rotating frame can fully stir the flocculant and silt, improve the dewatering efficiency of the silt, and obtain better flocculation and sedimentation effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the on-site grouting device;

[0016] Figure 2 Schematic diagram of a multi-section grouting part;

[0017] Figure 3 It is a three-dimensional diagram of a multi-section grouting part;

[0018] Figure 4 for Figure 3 A top view of

[0019] Figure 5 for Figure 2 Side sectional view of the compression expansion piece in section A.

[0020] 1. Construction machinery vehicle; 2. Slurry pump body; 3. Base; 4. Stop member; 41. Vertical rod; 42. Support arm; 5. Lifting bracket; 51. Platform; 511. First through hole; 6. Compression and expansion member; 61. Powered electromagnet; 62. Conversion rod; 63. Slide rail; 64. First magnet; 65. Cross bar; 66. Spring; 7. Multi-section grouting member; 71. Shell; 712. Second through hole; 72. Extended rotating frame; 721. Triangular shell; 722. Arc rod; 723. Extension rod; 724. Path channel; 725. First gear; 73. Rotating plate; 74. Rotating member; 741. Rotating rod; 742. Second gear; 743. Synchronous wheel; 75. Transmission belt. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] Reference Figures 1 to 5 As shown, an on-site grouting device of this embodiment includes a movable engineering machinery vehicle 1 and a slurry pump body 2. The movable engineering machinery vehicle 1 includes a base 3 with a driving wheel, which is characterized in that the slurry pump body 2 is connected to the multi-segment grouting member 7 through a grouting delivery pipe, a grouting port is provided in the middle of the base 3, a plurality of retaining members 4 are provided on the base 3, and the retaining members are provided along the periphery of the grouting port. A lifting bracket 5 is also provided on the base 3, and the lifting bracket 5 includes a platform 51, a first through hole 511 is provided in the middle of the platform 51, and the first through hole 511 corresponds to the grouting port. A compression expansion member 6 is provided at the first through hole 511, and the multi-segment grouting member 7 It is arranged at the first through hole 511, and the up and down movement of the multi-section grouting part 7 is realized by compressing the expansion part 6 and the lifting bracket 5. The multi-section grouting part 7 is formed by multiple sections of grouting pipes connected to each other. The multiple sections of grouting pipes include a shell 71. The side wall of the shell 71 is provided with a second through hole 712. The second through hole 712 is covered with an elastic film. An extension rotating frame 72 is provided in the shell 71. The extension rotating frame 72 can pass through the elastic film to fully stir and contact the silt. The extension rotating frame 72 is connected to the driving member, driving the extension rotating frame 72 to pass through and drive the shell 71 to realize overall rotation. The extension rotating frame 72 is provided with multiple grouting output ports.

[0023] Based on the above embodiment, the second through hole 712 is covered with an elastic film.

[0024] On the basis of the above embodiment, the compression and expansion member 6 includes a groove body provided on the side wall of the first through hole 511, and a power-on electromagnet 61, a first magnet 64 and a spring 66 are provided between the first magnet 64 and the power-on electromagnet 61. The power-on electromagnet 61 has two end faces that repel each other magnetically. A conversion rod 62 is extended from both ends of the power-on electromagnet 61. The conversion rod 62 is used to convert the two end face directions of the power-on electromagnet 61. A slide rail 63 is provided on the side of the groove body, and a cross bar 65 is provided on both sides of the first magnet 64. The end of the cross bar 65 is slidably connected to the slide rail 63. When the multi-segment grouting member 7 is pressed down, When the lifting bracket 5 rises, the energized electromagnet 61 is energized, and the first magnet 64 is separated from the shell 71, so that the lifting bracket 5 will not rise with the multi-segment grouting pipe when it rises; when the lifting bracket 5 descends, the energized electromagnet 61 is not energized, and the first through hole 511 is pressed against the shell 71 through the first magnet 64, and the multi-segment grouting part 7 is synchronously driven to be pressed down; when the multi-segment grouting part 7 is taken out, the direction of the energized electromagnet 61 is realized by the conversion rod 62, so that when the lifting bracket 5 rises, the energized electromagnet 61 is energized, and the first through hole 511 is pressed against the shell 71 through the first magnet 64, and the multi-segment grouting part 7 is synchronously driven to move upward.

[0025] On the basis of the above embodiment, the extension rotating frame 72 includes a triangular shell 721 and a plurality of independent arc rods 722 in the shell 71, and the ends of the plurality of arc rods 722 extend into the interior of the shell 71 and are provided with extension rods 723. The three top corners of the triangular shell 721 are extended with support rods that are pressed against the internal end faces of the shell 71. The three side end faces of the triangular shell 721 are all provided with path channels 724. One end of the extension rod 723 passes through the path channel 724 and is provided with a circular ring. The circular ring is passed through a connecting shaft, and a first gear 725 is provided at both ends of the connecting shaft. A rotating plate 73 is provided in the middle of the triangular shell 721, and a joint is provided at the upper end of the rotating plate 73 and an interface is provided at the lower end. The rotating plate 73 is connected to the driving member, and the rotating plate 73 rotates to push the extension rod 723 to move along the path channel 724. The ends of the path channel 724 are all provided with rotating members 74, and the rotating members 74 move synchronously through the transmission belt 75.

[0026] On the basis of the above embodiment, the rotating member 74 includes a second gear 742 that is meshed with the first gear 725. The second gear 742 is connected to the rotating rod 741. The upper end of the rotating rod 741 is sleeved with a synchronous wheel 743. The upper end of the rotating rod 741 is provided with an interface, and the lower end is provided with an interface. The rotating rod 741 is connected to the driving member. The rotating rod 741 rotates, and the arc rod 722 rotates with the shell 71.

[0027] Based on the above embodiment, the end of the arc rod 722 is conical, and the end of the arc rod 722 is fitted to the port of the second through hole 712. A slurry input port is provided on multiple arc rods 722. The slurry input port is a three-way pipe port, one end of which is connected to the grouting delivery pipe, one end is connected to the slurry input port of the next grouting part, and one end is connected to the arc rod 722. The grouting output port is provided on the arc rod 722.

[0028] On the basis of the above embodiment, the shell 71 is in a triangular arc shape, the curvature of the arc rod 722 matches the curvature of the side wall of the shell 71 , and the shape of the first through hole 511 is the same as that of the shell 71 .

[0029] Based on the above embodiment, the blocking member 4 includes a vertical rod 41, the height of the vertical rod 41 is lower than the lowest height of the lifting bracket 5, and a support arm 42 is passed through the vertical rod 41. The support arm 42 is threadedly adjusted with the vertical rod 41, and the end surface of the support arm 42 that fits the shell 71 is a rough surface.

[0030] The improvements are as follows: Figures 1 to 5 As shown: it includes a movable engineering machinery vehicle 1 and a slurry pump body 2, the slurry pump body 2 is connected to the multi-stage grouting part 7 through a grouting delivery pipe, the engineering machinery vehicle 1 includes a base 3 with a driving wheel, a grouting port is provided in the middle of the base 3, a plurality of stops are provided on the base 3, the stops are provided along the periphery of the grouting port, the stops are used to press the sides of the multi-stage grouting part 7 to prevent the stops from moving down due to their own weight, and a lifting bracket 5 is also provided on the base 3, the lifting bracket 5 includes a platform 51 and a lifting drive member, the lifting drive member is driven by a motor or a hydraulic drive, a first through hole 511 is provided in the middle of the platform 51, a compression expansion member 6 is provided at the first through hole 511, and the compression expansion member 6 cooperates with the lifting bracket 5 to realize multi-stage grouting The multi-stage grouting component 7 is pressed in and out, and the multi-stage grouting component 7 is arranged at the first through hole 511. An extension rotating frame 72 is arranged in the shell 71. The extension rotating frame 72 is connected to the driving component. The driving component is started to drive the extension rotating frame 72 through the second through hole 712 to drive the shell 71 to rotate. When the multi-stage grouting component 7 is completely pressed into the soil, the driving component is started. The driving component is a plurality of independent motors. The extension rotating frame 72 is driven to pass through the film to drive the shell 71 to rotate. At the same time, the slurry pump is started to output the flocculant from the grouting output port. Since the grouting output port is reduced from being blocked by silt during the rotation of the extension rotating frame 72, and the rotation of the extension rotating frame 72 realizes the full stirring of the flocculant and silt, thereby improving the dewatering efficiency of the silt and obtaining better flocculation and sedimentation effects.

[0031] The compression and expansion member 6 includes a groove body provided on the side wall of the first through hole 511, in which a powered electromagnet 61 and a first magnet 64 are provided. The powered electromagnet 61 has two end faces that repel each other magnetically. A conversion rod 62 is extended at both ends of the powered electromagnet 61. The conversion rod 62 is used to convert the directions of the two end faces of the powered electromagnet 61. A slide rail 63 is provided on the side of the groove body. A cross bar 65 is provided on both sides of the first magnet 64. The end of the cross bar 65 is slidably connected to the slide rail 63. The two end faces of the powered electromagnet 61 have opposite magnetism. The directions of the two end faces of the powered electromagnet 61 can be converted by the conversion rod 62 to realize the conversion between attraction and repulsion between the first magnet 64 and the powered electromagnet 61. When the multi-segment grouting member 7 is pressed in, the lifting bracket 5 rises and the powered electromagnet 61 is energized. The first magnet 64 will be attracted to the powered electromagnet 61 along the slide rail 63 and is provided at the first The spring 66 between a magnet 64 and the energized electromagnet 61 is compressed, and a gap is generated between the first through hole 511 and the multi-segment grouting part 7, which is resisted by the stopper 4 on the base 3. The stopper 4 includes a vertical rod 41. The height of the vertical rod 41 is lower than the lowest height of the lifting bracket 5. The vertical rod 41 is penetrated by a support arm 42. The support arm 42 is threadedly adjusted with the vertical rod 41. The end surface of the support arm 42 that fits the shell 71 is a rough surface, which increases the friction resistance and prevents the multi-segment grouting part 7 from moving downward. When the lifting bracket 5 rises and then descends, the energized electromagnet 61 is de-energized and no magnetism is generated. The compressed spring 66 recovers and moves outward along the slide rail 63 with the first magnet 64. The first magnet 64 sticks to the outer shell of the multi-segment grouting part 7. When the lifting bracket 5 descends, the multi-segment grouting part 7 is pressed downward. The multi-segment grouting part 7 is pressed downward by the continuous lifting and lowering of the lifting bracket 5 and the expansion and contraction of the compression expansion part 6.

[0032] The multi-section grouting part 7 is formed by connecting multiple sections of grouting pipes to each other. The multi-section grouting pipe includes a shell 71. The side wall of the shell 71 is provided with a second through hole 712. The shell 71 is in a triangular arc shape, which fits the arc of the arc rod 722 on the extension rotating frame 72. The side wall of the shell 71 is provided with threaded holes connected up and down. According to the depth of the sludge pool, the multiple sections of grouting pipes are threadedly connected by screws or threaded rods to form a grouting part of the required length. The extension rotating frame 72 in the shell includes a triangular shell 721 and multiple independent arc rods 722. The end of the arc rod 722 extends to the inside of the shell 71. There is an extension rod 723, and the three side end surfaces of the triangular shell 721 are provided with a path channel 724. One end of the extension rod 723 passes through the path channel 724 and is provided with a ring. The ring is penetrated by a connecting shaft, and both ends of the connecting shaft are provided with a first gear 725. A rotating plate 73 is provided in the middle of the triangular shell 721. The upper end of the rotating plate 73 is provided with an interface, and the lower end is provided with an interface to realize the connection between the rotating plates 73 in multiple sections of the grouting pipe. The rotating plate 73 has a driving rod, and multiple steel sheets are distributed on the outer circumference of the driving rod. The first gear 725 end of the extension rod 723 is distributed between two adjacent steel sheets. , the driving rod is driven by the motor to rotate, and the steel sheet pushes the extension rod 723 together with the arc rod 722 along the path channel 724 to pass through the second through hole 712. The end of the path channel 724 is provided with a rotating member 74, and the rotating members 74 rotate synchronously through the transmission belt 75. The rotating member 74 includes a second gear 742 that meshes with the first gear 725. The second gear 742 is connected to the rotating rod 741. The upper end of the rotating rod 741 is provided with a synchronous wheel 743. One of the rotating rods 741 is connected to the driving member to realize rotation. Since the rotating rod 741 is driven by the transmission belt 75 It drives the other rotating rods 741 to rotate, and the arc rod 722 is subjected to rotational force, but because the bottom arc rod 722 passes through the second through hole 712 to achieve rotation limitation, it pushes the shell 71 to rotate together. When the rotating part 74 rotates, the slurry pump body 2 is also started, and the pump body is injected through the slurry input port of the grouting part under a part of the grouting delivery pipe, and a part is input into the arc rod 722, and seeps into the silt through the grouting output port of the arc rod 722, and is stirred by the arc rod 722. The end of the arc rod 722 is tapered, and the end of the arc rod 722 fits into the port of the second through hole 712.

[0033] The second through hole 712 is covered with an elastic film to prevent silt from blocking the second through hole 712 when the grouting piece is pressed down, thereby improving the sealing performance.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An on-site grouting device, comprising a movable engineering machinery vehicle (1) and a slurry pump body (2), wherein the movable engineering machinery vehicle (1) comprises a base (3) with drive wheels, and is characterized in that: The slurry pump body (2) is connected to the multi-segment grouting part (7) through a grouting delivery pipe. A grouting port is provided in the middle of the base (3). A plurality of blocking parts (4) are provided on the base (3). The blocking parts are provided along the periphery of the grouting port. A lifting bracket (5) is also provided on the base (3). The lifting bracket (5) includes a platform (51). A first through hole (511) is provided in the middle of the platform (51). The first through hole (511) corresponds to the grouting port. A pressing and expanding part (6) is provided at the first through hole (511). The multi-segment grouting part (7) is provided at the first through hole (511). The pressing and expanding part (6) and the lifting bracket (5) are used to realize the pressing and expanding part (6) and the lifting bracket (5). The multi-section grouting part (7) is moved up and down. The multi-section grouting part (7) is formed by connecting multiple sections of grouting pipes to each other. The multiple sections of grouting pipes include a shell (71). The side wall of the shell (71) is provided with a second through hole (712). The second through hole (712) is covered with an elastic film. An extension rotating frame (72) is provided in the shell (71). The extension rotating frame (72) can pass through the elastic film to fully stir and contact the silt. The extension rotating frame (72) is connected to a driving member to drive the extension rotating frame (72) to pass through and drive the shell (71) to realize overall rotation. The extension rotating frame (72) is provided with multiple grouting output ports. The compression and expansion member (6) includes a groove body provided on the side wall of the first through hole (511), wherein the groove body is provided with a powered electromagnet (61), a first magnet (64), and a spring (66) provided between the first magnet (64) and the powered electromagnet (61), the powered electromagnet (61) having two end faces that repel each other magnetically, and a conversion rod (62) extending from both ends of the powered electromagnet (61), the conversion rod (62) being used to convert the directions of the two end faces of the powered electromagnet (61), a slide rail (63) being provided on the side of the groove body, and a cross bar (65) being provided on both sides of the first magnet (64), and the end of the cross bar (65) being slidably connected to the slide rail (63), and when the multi-section grouting member (7) is pressed down, the lifting bracket (5) When ascending, the energized electromagnet (61) is energized, and the first magnet (64) is separated from the shell (71), so that the lifting bracket (5) will not ascend with the multi-segment grouting pipe; when the lifting bracket (5) descends, the energized electromagnet (61) is not energized, and the first through hole (511) is pressed against the shell (71) through the first magnet (64), and the multi-segment grouting part (7) is synchronously driven downward; when the multi-segment grouting part (7) is taken out, the direction of the energized electromagnet (61) is realized by the conversion rod (62), so that when the lifting bracket (5) ascends, the energized electromagnet (61) is energized, and the first through hole (511) is pressed against the shell (71) through the first magnet (64), and the multi-segment grouting part (7) is synchronously driven upward; The extension rotating frame (72) includes a triangular shell (721) and a plurality of independent arc-shaped rods (722) in the shell (71). The ends of the plurality of arc-shaped rods (722) extend toward the inside of the shell (71) and are provided with extension rods (723). The three top corners of the triangular shell (721) are provided with support rods that abut against the inner end surface of the shell (71). The three side end surfaces of the triangular shell (721) are all provided with path channels (724). One end of the extension rod (723) passes through the path channel (724) and is provided. A circular ring is provided, through which a connecting shaft is passed, and first gears (725) are provided at both ends of the connecting shaft. A rotating plate (73) is provided in the middle of the triangular shell (721), and a joint is provided at the upper end of the rotating plate (73), and an interface is provided at the lower end. The rotating plate (73) is connected to a driving member, and the rotating plate (73) rotates to push the extension rod (723) to move along a path channel (724). Rotating members (74) are provided at the ends of the path channel (724), and the rotating members (74) move synchronously through a transmission belt (75).

2. An on-site grouting device according to claim 1, characterized in that: The second through hole (712) is covered with an elastic film.

3. The on-site grouting device according to claim 2, characterized in that: The rotating member (74) includes a second gear (742) meshed with the first gear (725). The second gear (742) is connected to the rotating rod (741). The upper end of the rotating rod (741) is sleeved with a synchronous wheel (743). The upper end of the rotating rod (741) is provided with a joint, and the lower end is provided with an interface. The rotating rod (741) is connected to the driving member. When the rotating rod (741) rotates, the arc rod (722) rotates with the housing (71).

4. The on-site grouting device according to claim 3, characterized in that: The end of the arc rod (722) is tapered, and the end of the arc rod (722) is fitted to the port of the second through hole (712). A slurry input port is provided on each of the plurality of arc rods (722). The slurry input port is a three-way pipe port, one end of which is connected to the grouting delivery pipe, one end of which is connected to the slurry input port of the next grouting piece, and one end of which is connected to the arc rod (722). The grouting output port is provided on the arc rod (722).

5. The on-site grouting device according to claim 4, characterized in that: The shell (71) is in a triangular arc shape, the curvature of the arc-shaped rod (722) matches the curvature of the side wall of the shell (71), and the shape of the first through hole (511) is the same as that of the shell (71).

6. The on-site grouting device according to claim 5, characterized in that: The blocking member (4) includes a vertical rod (41), the height of the vertical rod (41) is lower than the lowest height of the lifting bracket (5), and a support arm (42) is provided through the vertical rod (41). The support arm (42) and the vertical rod (41) are threadedly adjusted, and the end surface of the support arm (42) that contacts the housing (71) is a rough surface.

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