High-pressure jet grouting device for hydraulic engineering construction

Abstract

A high-pressure jet grouting device for hydraulic engineering construction, comprising an outer cover cylinder, a connecting sleeve set is connected at the bottom end of the outer cover cylinder, a cross beam is connected on the surface of the connecting sleeve set, connecting heads are connected at both ends of the cross beam, track running wheel groups are connected on the sides of the connecting heads away from each other, and a positioning machine group is connected at the bottom end of the connecting sleeve set. The mud water generated during drilling can be collected and concentrated by the positioning machine group and the outer cover cylinder, and the mud water overflowed can be pumped out through the connection of the mud pump and the mud pumping pipe and discharged to a suitable position to form a protective effect on the environment. The driving and positioning effects of the drill rod are ensured through the cooperation between the driving mechanism and the clamping mechanism. The drill bit drift can be automatically corrected through the setting of the supporting and extruding mechanism in the drill rod, and obstacles can be avoided when the drill rod is stuck, thereby improving the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering construction technology, specifically to a high-pressure jet grouting device for water conservancy engineering construction. Background Technology

[0002] High-pressure jet grouting technology is a core process for foundation treatment in modern water conservancy projects. It uses high-speed fluid to cut the soil and mix it with cement grout to form a solidified body. It is widely used in dam foundation seepage prevention, foundation reinforcement and foundation pit water stop. Its core device uses a high-pressure pump (pressure can reach 30-45MPa) to inject cement grout through the drill nozzle, while the jet is protected by compressed air or water flow. During the rotation and lifting process, a solidified pile body as required by the design is formed.

[0003] Current high-pressure jet grouting devices can only be used vertically or rotated. When encountering obstacles and getting stuck, the drill bit is forced to break through, resulting in significant wear and reduced work efficiency. Mud removal relies on natural overflow from the ground. However, in ultra-deep strata (depth > 20m), the gaps around the drill rod increase, and a large amount of mud overflows from the gaps. Improper control can also cause mud "cross-flow," polluting the surrounding water and soil environment. Summary of the Invention

[0004] The purpose of this invention is to provide a high-pressure jet grouting device for water conservancy engineering construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-pressure jet grouting device for water conservancy engineering construction includes an outer casing. A connecting kit is connected to the bottom of the outer casing. A crossbeam is connected to the surface of the connecting kit. Connectors are connected to both ends of the crossbeam. Tracked wheels are connected to the sides of the connectors that are furthest apart. A positioning unit is connected to the bottom of the connecting kit. A tilt sensor is connected to one side of the top of the crossbeam. Downward hydraulic rods are connected to both sides of the top of the crossbeam. The output end of the downward hydraulic rod passes through the crossbeam and is connected to an electromagnet. A sun gear frame is connected to the bottom inner side of the outer casing. Two hydraulic rods with compression are connected to the top of the frame. The output end of each hydraulic rod is connected to a clamping plate. A drive mechanism is connected to the top of the outer cover. A clamping unit is connected inside the drive mechanism. A drill rod is connected inside the clamping unit. A displacement mechanism is connected to one side of the outer cover. One side of the displacement mechanism is connected to the drive mechanism. A slurry extraction pipe is connected to one side of the outer cover. A cross plate is connected between the tracked wheel sets. A mud pump is connected to the top of the cross plate. One end of the slurry extraction pipe is connected to the mud pump. A controller is connected to one side of the tracked wheel sets. The displacement mechanism includes two Y-shaped frames fixedly mounted on one side of the outer casing. Each Y-shaped frame has a sprocket rotatably mounted on one side, and a chain is connected between the sprockets. A drive motor is connected to one side of the Y-shaped frame, and the output end of the drive motor is connected to the sprocket.

[0006] Preferably, a travel motor is connected to one side of each track travel wheel set, a positioning ring is connected to the side of each track travel wheel set that is close to each other, the connector is rotatably located inside the positioning ring, and a steering DC motor is connected to one side of each track travel wheel set, with the output end of the steering DC motor connected to the connector.

[0007] Preferably, the positioning unit includes a ground cover, a ring plate connected to the top of the ground cover, small vibrating motors connected to both sides of the ring plate, rivets connected to the bottom of the ground cover, a corrugated pipe connected between the top of the ground cover and the connecting kit, an electromagnet located directly above the ring plate, a positioning hole plate connected to the inner side of the ground cover, and one end of the slurry pumping pipe connected to the positioning hole plate.

[0008] Preferably, the drive mechanism includes a movable frame, a motor frame connected to the top of the movable frame, a servo motor connected inside the motor frame, the output end of the servo motor extending into the movable frame and connected to a drive pulley, a positioning ring connected to the bottom of the inner wall of the movable frame, a driven pulley rotatably mounted on the outer ring of the positioning ring, a clamping mechanism connected to the top of the driven pulley, a transmission belt sleeved between the driven pulley and the drive pulley, and a chain connected to one side of the movable frame.

[0009] Preferably, the clamping mechanism includes a diamond-shaped fixing frame connected to the top of the driven pulley, with two compression hydraulic rods connected to both sides of the diamond-shaped fixing frame, and directional clamping blocks connected to the output ends of the compression hydraulic rods. A support guide arm is rotatably mounted on one side of each directional clamping block.

[0010] Preferably, there are two sets of directional clamping blocks. One set of directional clamping blocks has a positioning insert connected to one side, and the other set has a limit hole. The diamond-shaped fixing frame has an installation hole corresponding to the positioning insert on one side, and a positioning pin is connected to the inside of the installation hole. The support guide arm has a guide hole corresponding to the positioning pin on one side, and the drill rod is connected and arranged between the directional clamping blocks.

[0011] Preferably, the drill rod includes a main rod body, the surface of which is provided with spiral drill blades, a positioning end is connected to the top of the main rod body, a pipeline connector is connected to the top of the positioning end, a liquid outlet section is connected to the bottom of the main rod body, a grinding section is connected to the bottom of the liquid outlet section, and a drill bit is connected to the bottom of the grinding section.

[0012] Preferably, a support and squeezing mechanism is connected to the top of the main rod and both ends of the liquid outlet section. Water outlet holes are opened on both sides of the liquid outlet section, and a gyroscope and tilt sensor are embedded in one side of the liquid outlet section.

[0013] Preferably, the supporting extrusion mechanism includes a rotating assembly. The rotating assembly has multiple slots on one side, and a set of miniature electric actuators is rotatably arranged inside each slot. Each set of miniature electric actuators has a stop plate rotatably arranged at one end, and the stop plate is slidably connected to the slot.

[0014] In summary, this application includes the following beneficial technical effects: The present invention, through the setting of the positioning unit and the outer casing, can collect the mud and water generated during drilling in a concentrated manner to prevent overflow. The overflowing mud and water can be pumped out and discharged to a suitable location through the connection of the mud pump and the slurry extraction pipe, thus protecting the environment. The cooperation between the drive mechanism and the clamping mechanism ensures the driving and positioning effect of the drill rod. The setting of the internal support and squeezing mechanism of the drill rod can automatically correct drill bit drift and avoid obstacles when the drill gets stuck, thereby improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 for Figure 4 Enlarged structural diagram of section A; Figure 6 for Figure 5 Enlarged structural diagram of section B; Figure 7 This is a partial rear view structural schematic diagram of the present invention; Figure 8 This is a schematic diagram of the connection structure between the driving mechanism and the clamping mechanism in this invention; Figure 9 This is a partial structural schematic diagram of the clamping mechanism of the present invention; Figure 10 This is a schematic diagram of the drill pipe structure of the present invention; Figure 11 This is a schematic diagram of the side cross-section of the drill pipe of the present invention; Figure 12 This is a schematic diagram of the supporting extrusion mechanism in this invention.

[0016] In the diagram: 1 Outer casing; 2 Connecting kit; 3 Crossbeam; 31 Connector; 4 Track travel wheel set; 41 Travel motor; 42 Positioning ring; 43 Steering DC motor; 5 Positioning unit; 51 Ground cover; 52 Ring plate; 53 Small vibration motor; 54 Rivet; 55 Bellows; 6 Tilt sensor; 7 Downward hydraulic rod; 8 Electromagnet; 9 Sun gear carrier; 10 Extrusion hydraulic rod one; 11 Clamping plate; 12 Drive mechanism; 121 Moving frame; 122 Motor frame; 123 Servo motor; 124 Drive pulley; 125 Driven pulley; 126 Transmission belt; 131 Diamond-shaped fixing frame; 132 Extrusion hydraulic rod two; 133 Fixed... 134 Clamping block; 135 Support guide arm; 135 Positioning insert; 14 Positioning ring; 15 Drill rod; 151 Main rod body; 152 Spiral drill blade; 153 Positioning end; 154 Pipeline connector; 155 Liquid outlet section; 156 Grinding section; 157 Drill bit; 158 Support extrusion mechanism; 1581 Rotating kit; 1582 Slot; 1583 Miniature electric actuator; 1584 Support plate; 16 Displacement mechanism; 161 Y-shaped frame; 162 Sprocket; 163 Chain; 164 Drive motor; 18 Pumping pipe; 19 Horizontal plate; 20 Mud pump; 21 Controller; 22 Tilt sensor; 23 Gyroscope; 24 Water outlet; 222 Guide hole. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-12This invention provides a technical solution: It includes an outer casing 1, a connecting kit 2 connected to the bottom end of the outer casing 1, a crossbeam 3 connected to the surface of the connecting kit 2, connectors 31 connected to both ends of the crossbeam 3, track wheelsets 4 connected to the sides of the connectors 31 that are far apart from each other, a positioning unit 5 connected to the bottom end of the connecting kit 2, a tilt sensor 6 connected to one side of the top end of the crossbeam 3, and hydraulic rods 7 connected to both sides of the top end of the crossbeam 3. The output end of the hydraulic rod 7 passes through the crossbeam 3 and is connected to an electromagnet 8. As shown in the attached drawings, a ball joint is connected to the output end of the hydraulic rod 7, and the ball joint is rotatably connected to the electromagnet 8. The bottom end of the inner side of the outer casing 1 is connected to... The device includes a sun gear carrier 9, with two hydraulic compression rods 10 connected to the top of the sun gear carrier 9. Each hydraulic compression rod 10 has a clamping plate 11 connected to its output end. The top of the outer casing 1 is connected to a drive mechanism 12, which has a clamping unit inside. The clamping unit has a drill rod 15 connected inside. One side of the outer casing 1 is connected to a displacement mechanism 16, which is connected to the drive mechanism 12. One side of the outer casing 1 is connected to a slurry extraction pipe 18. A cross plate 19 is connected between the tracked wheel sets 4. A mud pump 20 is connected to the top of the cross plate 19. One end of the slurry extraction pipe 18 is connected to the mud pump 20. A controller 21 is connected to one side of the tracked wheel sets 4. Reference Figure 7 As shown, the displacement mechanism 16 includes two Y-shaped frames 161 fixedly mounted on one side of the outer casing 1. Each Y-shaped frame 161 is rotatably mounted on one side, and a chain 163 is connected between the sprockets 162. A drive motor 164 is connected to one side of the Y-shaped frame 161. The output end of the drive motor 164 is connected to the sprockets 162. When the drive motor 164 is started, it drives the sprockets 162 to rotate, thereby driving the chain 163 to rotate. The chain 163 drives the drive mechanism to move up and down along the outer casing 1 to perform drilling and drilling actions. Reference Figure 3 As shown, each side of the track travel wheel set 4 is connected to a travel motor 41. Through the cooperation of each travel motor 41, the track travel wheel set 4 is driven to move. Each travel motor 41 can also control reversing or turning. Each side of the track travel wheel set 4 that is close to each other is connected to a positioning ring 42. The connector 31 is rotatably set inside the positioning ring 42. A steering DC motor 43 is connected to one side of the track travel wheel set 4. The output end of the steering DC motor 43 is connected to the connector 31. The steering DC motor 43 drives the connector 31 to rotate, thereby driving the connecting kit 2 and the outer cover 1 to rotate through the crossbeam 3, and adjusting the drilling angle.

[0019] Reference Figure 5As shown, the positioning unit 5 includes a ground cover 51. A ring plate 52 is connected to the top of the ground cover 51. Small vibration motors 53 are connected to both sides of the ring plate 52. A rivet 54 is connected to the bottom of the ground cover 51. A corrugated pipe 55 is connected between the top of the ground cover 51 and the connecting kit 2. An electromagnet 8 is located directly above the ring plate 52. A positioning hole plate is connected to the inner side of the ground cover 51. One end of the slurry extraction pipe 18 is connected to the positioning hole plate. After moving to a suitable position, the hydraulic rod 7 pushes the ring plate 52 down through the electromagnet 8 until the rivet 54 is inserted into the bottom surface. During the pressing process, the small vibration motors 53 start and drive the ring plate 52 and the ground cover 51 to vibrate. With the downward pressure of the hydraulic rod 7, it is easier to insert the rivet 54, so that the ground cover 51 can be tightly attached to the bottom surface to prevent the overflowing mud and water from spilling into the environment. The corrugated pipe 55 can meet the movement when the ground cover 51 is pressed down and when the outer cover cylinder 1 rotates through its own extensibility.

[0020] Reference Figure 8 As shown, the drive mechanism 12 includes a movable frame 121. A motor frame 122 is connected to the top of the movable frame 121. A servo motor 123 is connected inside the motor frame 122. The output end of the servo motor 123 extends into the movable frame 121 and is connected to a drive pulley 124. A positioning ring 14 is connected to the bottom of the inner wall of the movable frame 121. A driven pulley 125 is rotatably mounted on the outer ring of the positioning ring 14. A clamping mechanism is connected to the top of the driven pulley 125. A transmission belt 126 is sleeved between the driven pulley 125 and the drive pulley 124. A chain 163 is connected to one side of the movable frame 121. When the servo motor 123 is started, it drives the drive pulley 124 to rotate. Through the connection of the transmission belt 126, it drives the driven pulley 125 to rotate, which in turn drives the drill rod 15 in the clamping mechanism to rotate. Then, it is driven by the displacement mechanism 16 to drill down. Reference Figure 8 and Figure 9As shown, the clamping mechanism includes a diamond-shaped fixing frame 131 connected to the top of the driven pulley 125. Two hydraulic compression rods 132 are connected to both sides of the diamond-shaped fixing frame 131. A directional clamping block 133 is connected to the output end of each hydraulic compression rod 132. A support guide arm 134 is rotatably mounted on one side of each directional clamping block 133. There are two sets of directional clamping blocks 133. One set has a positioning insert 135 connected to one side, and the other set has a limit hole. A mounting hole is provided on one side of the diamond-shaped fixing frame 131 corresponding to the positioning insert 135, and a positioning pin is connected inside the mounting hole. A support guide arm 134 is rotatably mounted on one side of the support guide arm 134. The positioning pin has a guide hole 222. The drill rod 15 is connected and set between the directional clamping blocks 133. When the drill rod 15 is placed between the directional clamping blocks 133, the second hydraulic squeeze rod 132 is activated to push the directional clamping blocks 133 to move towards each other, thereby clamping the positioning end 153 of the drill rod 15 for positioning. When the second hydraulic squeeze rod 132 drives the directional clamping blocks 133 to move, the support guide arm 134 will guide the directional clamping blocks 133 through the guide hole 222 and the connection between the positioning pin and the diamond-shaped fixing frame 131. Through the support force, the positioning insert 135 will be inserted into the mounting hole during docking, increasing the connection during rotation.

[0021] Reference Figure 10 and Figure 11 As shown, the drill rod 15 includes a main body 151. The surface of the main body 151 is provided with spiral drill blades 152. When the drill rod 15 is lowered or offset, the spiral drill blades 152 can grind the borehole wall. A positioning end 153 is connected to the top of the main body 151. Notches are provided on both sides of the positioning end 153 to facilitate the fixing of the clamping mechanism. A pipe connector 154 is connected to the top of the positioning end 153 for connecting to an external mortar feeding pipe. A liquid outlet section 155 is connected to the bottom of the main body 151. During lowering and offsetting, high-pressure liquid is sprayed into the borehole through the water outlet 24. To facilitate the grinding of the drill rod 15, a grinding section 156 is connected to the bottom of the liquid outlet section 155. During drilling, the grinding section 156 can help grind the borehole wall, making it easier for the main rod 151 to move down. A drill bit 157 is connected to the bottom of the grinding section 156. The main rod 151 is equipped with a nozzle and a drill bit 157 on one side, which can be replaced according to the needs of the grouting process. A support and extrusion mechanism 158 is connected to the top of the main rod 151 and both ends of the liquid outlet section 155. A gyroscope 23 and an inclination sensor 22 are embedded on one side of the liquid outlet section 155 to provide real-time feedback on the deflection angle and monitor the drilling status of the drill rod 15.

[0022] Reference Figure 12As shown, the supporting extrusion mechanism 158 includes a rotating assembly 1581. Multiple slots 1582 are provided on one side of the rotating assembly 1581. A set of miniature electric actuators 1583 are rotatably mounted inside each slot 1582. A stop plate 1584 is rotatably mounted at one end of each miniature electric actuator 1583. The stop plate 1584 is slidably connected to the slot 1582. When active offset is required, each set of miniature electric actuators 1583 in the corresponding direction extends and pushes the stop plate 1584, causing it to slide out of the slot 1582 and abut against the inner wall of the borehole. This allows the rotating drill rod 15 to offset in the opposite direction. Depending on the position of the supporting extrusion mechanism 158 at the top of the main rod 151 and both ends of the liquid outlet section 155, the offset or overall movement can be controlled.

[0023] A high-pressure jet grouting method for a high-pressure jet grouting device used in water conservancy engineering construction includes the following steps: Step 1: Start the tracked wheel assembly 4 to move the device to a suitable position. Then, start the downward hydraulic rod 7 to extend and push the positioning unit 5 to the suitable position via the electromagnet 8. Then, start the small vibration motors 53 on both sides of the positioning unit 5 to make the ground cover 51 drive the rivet 54 to vibrate. The thrust of the downward hydraulic rod 7 will better insert the rivet 54 into the ground, thereby making the ground cover 51 fit with the bottom surface. When fitting, the corrugated pipe 55 extends and the DC motor 43 drives the connector 31 to rotate, thereby driving the outer cover cylinder 1 to rotate and adjust the angle through the crossbeam 3 to meet the grouting needs of multiple angles. Step 2: Clamp the drill rod 15 using the clamping mechanism, then connect the mortar injection pipe to the pipeline connector 154, then start the drive mechanism 12 to drive the clamping mechanism to rotate, thereby driving the drill rod 15 to rotate at high speed. Start the displacement mechanism 16 to drive the drive mechanism 12 to slide downward along the outer cover 1 to drill. During drilling, the mud water that emerges from the gap around the drill rod 15 will be temporarily stored in the positioning unit 5. Start the mud pump 20 and extract the mud water through the slurry extraction pipe 18. Then connect the discharge pipe of the mud pump 20 to the discharge end to discharge the mud water to a suitable position to avoid pollution of the environment around the borehole. Step 3: When the drill bit 157 deviates or encounters an obstacle at a short distance during drilling, the state of the drill rod 15 is detected by the tilt sensor 22 and the gyroscope 23. Then, the corresponding micro electric actuator 1583 is activated to push the abutment plate 1584 out and abut against one side of the borehole wall, so that the drill rod 15 is abutted against the side of the borehole in the opposite direction. As the drill rod 15 rotates, the grinding section 156 and the spiral drill blade 152 will grind the borehole wall. As the borehole is ground, the drill rod 15 will move laterally. At the same time, the entire device will also move. When long-distance drilling is required, underground pipelines are avoided during grouting drilling. By setting the support extrusion mechanism 158, grouting with an arc is performed. The lateral displacement setting can also increase the grouting range of a single operation.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure jet grouting device for water conservancy engineering construction, comprising an outer casing (1), characterized in that: The bottom end of the outer casing (1) is connected to a connecting kit (2), the surface of the connecting kit (2) is connected to a crossbeam (3), both ends of the crossbeam (3) are connected to a connector (31), the sides of the connectors (31) that are far apart from each other are connected to a tracked wheel set (4), the bottom end of the connecting kit (2) is connected to a positioning unit (5), one side of the top end of the crossbeam (3) is connected to a tilt sensor (6), both sides of the top end of the crossbeam (3) are connected to a downward hydraulic rod (7), the output end of the downward hydraulic rod (7) passes through the crossbeam (3) and is connected to an electromagnet (8), the bottom end of the inner side of the connecting kit (2) is connected to a sun gear carrier (9), the top end of the sun gear carrier (9) is connected to two compression hydraulic rods (10). Each of the extrusion hydraulic rods (10) has a clamping plate (11) connected to its output end. The top of the outer cover (1) is connected to a drive mechanism (12). The drive mechanism (12) has a clamping unit connected inside. The clamping unit has a drill rod (15) connected inside. The outer cover (1) has a displacement mechanism (16) connected to one side. The displacement mechanism (16) is connected to the drive mechanism (12) on one side. The outer cover (1) has a slurry pumping pipe (18) connected to one side. The tracked wheel sets (4) have a cross plate (19) connected between them. The top of the cross plate (19) is connected to a mud pump (20). The slurry pumping pipe (18) is connected to the mud pump (20) at one end. The tracked wheel sets (4) have a controller (21) connected to one side. The displacement mechanism (16) includes two Y-shaped frames (161) fixedly installed on one side of the outer cover (1). Each Y-shaped frame (161) is rotatably equipped with a sprocket (162) on one side. A chain (163) is connected between the sprockets (162). A drive motor (164) is connected to one side of the Y-shaped frame (161). The output end of the drive motor (164) is connected to the sprocket (162).

2. The high-pressure jet grouting device for water conservancy engineering construction according to claim 1, characterized in that: Each of the tracked wheel sets (4) is connected to a travel motor (41) on one side. Each of the tracked wheel sets (4) is connected to a positioning ring (42) on the side of each tracked wheel set (4) that is close to each other. The connector (31) is rotatably disposed inside the positioning ring (42). A steering DC motor (43) is connected to one side of the tracked wheel set (4). The output end of the steering DC motor (43) is connected to the connector (31).

3. The high-pressure jet grouting device for water conservancy engineering construction according to claim 2, characterized in that: The positioning unit (5) includes a ground cover (51), a ring plate (52) is connected to the top of the ground cover (51), small vibration motors (53) are connected to both sides of the ring plate (52), a rivet (54) is connected to the bottom of the ground cover (51), a corrugated pipe (55) is connected between the top of the ground cover (51) and the connecting kit (2), the electromagnet (8) is located directly above the ring plate (52), a positioning hole plate is connected to the inner side of the ground cover (51), and one end of the slurry pipe (18) is connected to the positioning hole plate.

4. A high-pressure jet grouting device for water conservancy engineering construction according to claim 3, characterized in that: The drive mechanism (12) includes a movable frame (121), a motor frame (122) is connected to the top of the movable frame (121), a servo motor (123) is connected inside the motor frame (122), the output end of the servo motor (123) extends into the movable frame (121) and is connected to a drive pulley (124), a positioning ring (14) is connected to the bottom of the inner wall of the movable frame (121), a driven pulley (125) is rotatably arranged on the outer ring of the positioning ring (14), a clamping mechanism is connected to the top of the driven pulley (125), a transmission belt (126) is sleeved between the driven pulley (125) and the drive pulley (124), and a chain (163) is connected to one side of the movable frame (121).

5. A high-pressure jet grouting device for water conservancy engineering construction according to claim 4, characterized in that: The clamping mechanism includes a rhomboid fixing frame (131) connected to the top of the driven pulley (125). Both sides of the rhomboid fixing frame (131) are connected to a second extrusion hydraulic rod (132). The output end of the second extrusion hydraulic rod (132) is connected to a directional clamping block (133). A support guide arm (134) is rotatably provided on one side of the directional clamping block (133).

6. A high-pressure jet grouting device for water conservancy engineering construction according to claim 5, characterized in that: There are two sets of directional clamping blocks (133). One set of directional clamping blocks (133) has a positioning insert (135) connected to one side, and the other set has a limit hole. The diamond-shaped fixing frame (131) has an installation hole on one side corresponding to the positioning insert (135), and a positioning pin is connected to the inside of the installation hole. The support guide arm (134) has a guide hole (222) on one side corresponding to the positioning pin. The drill rod (15) is connected and arranged between the directional clamping blocks (133).

7. A high-pressure jet grouting device for water conservancy engineering construction according to claim 6, characterized in that: The drill rod (15) includes a main rod body (151), the surface of the main rod body (151) is provided with a spiral drill blade (152), the top end of the main rod body (151) is connected to a positioning end (153), the top end of the positioning end (153) is connected to a pipeline connector (154), the bottom end of the main rod body (151) is connected to a liquid outlet section (155), the bottom end of the liquid outlet section (155) is connected to a grinding section (156), and the bottom end of the grinding section (156) is connected to a drill bit (157).

8. A high-pressure jet grouting device for water conservancy engineering construction according to claim 7, characterized in that: The top of the main rod (151) and both ends of the liquid outlet section (155) are connected to a support and squeezing mechanism (158). Water outlet holes (24) are opened on both sides of the liquid outlet section (155). A gyroscope (23) and an tilt sensor (22) are fitted on one side of the liquid outlet section (155).

9. A high-pressure jet grouting device for water conservancy engineering construction according to claim 8, characterized in that: The supporting compression mechanism (158) includes a rotating assembly (1581). The rotating assembly (1581) has multiple slots (1582) on one side. A set of miniature electric push rods (1583) is rotatably arranged inside each slot (1582). A stop plate (1584) is rotatably arranged at one end of each set of miniature electric push rods (1583). The stop plate (1584) is slidably connected to the slot (1582).

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