Construction method of water surface blocking net in high flow velocity water area in uninhabited region

Abstract

The application discloses a construction method of water surface blocking net in high-flow water area in an unmanned area, and the construction method comprises the following steps: a, selecting a recovery point; b, installing an anchoring point; c, building a main blocking net; d, fixing the main blocking net; and e, salvaging.The main blocking net forms a stable barrier in a slow-flow area, so that floating objects on the water surface can be effectively captured and will not be washed away by high-speed flow; the construction mode that the cross-river rope is 3-4 meters higher than the water surface can avoid water flow impact interference on the operation and facilitate the installation and laying of the blocking net; the anchoring pile is used to fix the bottom of the main blocking net to the water bottom, so that the stability of the main blocking net is increased, and the floating objects on the water surface are prevented from separating from the main blocking net from the water bottom; the double fixing design of the main rope and the main anchoring point and the standby anchoring point enhances the stability of the blocking net, and the function can be maintained even if a single point fails; the personnel on the shore and the personnel on the water cooperate through the dragging rope, so that the salvaging time is reduced, and the method is especially suitable for the environment in the unmanned area and the environment lacking mechanical assistance.

Description

Technical Field

[0001] This invention belongs to the field of floating object salvage technology, specifically relating to a method for constructing a water surface barrier net in high-velocity waters in uninhabited areas. Background Technology

[0002] In remote, uninhabited river environments, clearing floating debris presents unique challenges. Traditional manual salvage relies on boat operations, but large-scale mechanized equipment is difficult to deploy due to factors such as poor transportation access, lack of power supply, and complex river topography in uninhabited areas.

[0003] In existing technologies, when salvaging floating objects in uninhabited areas, large equipment cannot reach the site, so workers need to set up fishing nets in the river to catch them. However, in uninhabited areas, the water flow is rapid, and the floating objects move quickly and have a strong impact. During the retrieval process, the floating objects can easily wash away the fishing nets, resulting in the failure of the floating objects to be retrieved. Summary of the Invention

[0004] The purpose of this invention is to solve the aforementioned technical problems existing in the prior art, and to provide a method for constructing a water surface barrier net in high-velocity waters in uninhabited areas. This method uses a main barrier net to form a stable barrier in areas with slower currents, ensuring that floating objects can be effectively captured and not swept away by the high current. The method of erecting the ropes across the river 3-4 meters above the water surface avoids interference from the current and facilitates the installation and laying of the barrier net. Anchor piles secure the bottom of the main barrier net to the seabed, increasing its stability and preventing floating objects from detaching from the seabed. The double-fixing design of the main rope and main anchor points, as well as backup anchor points, enhances the stability of the barrier net, maintaining its function even if a single point fails. The method allows for coordinated dragging of the ropes by personnel on shore and in the water, reducing retrieval time, and is particularly suitable for uninhabited environments lacking mechanical assistance.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The construction method for water surface barrier nets in high-velocity waters in uninhabited areas includes the following steps: a. Selecting recycling points The main barrier netting will be deployed in a downstream area with slow water flow, few undercurrents, and few obstacles in the river channel. b. Anchor point installation Based on the test drawings and the site conditions, main anchor points and backup anchor points were selected and installed on both sides of the river. c. Construction of the main barrier net 1) Ropeway construction across the river Workers used a water assault boat to set up a rope across the river, with the rope 3-4 meters above the water surface. 2) Installation of the main barrier net The workers first fixed the anchor piles to the bottom of the main barrier net on the shore, then hung the main barrier net on the cross-river rope, and then pulled to the opposite bank by the guide rope. The workers then traveled to the underwater fixed point by water assault boat and drove the anchor piles into the bottom of the water. d. Fixing the main barrier net Pre-install main ropes at the four corners of the main barrier net. Fix one end of the main rope to the main barrier net, and then fix the other end of the main rope to the main anchor point and the spare anchor point installed in step b in sequence. Then untie the cross-river ropes to let the barrier net fall into the water and be spread out, with the barrier net protruding 1-2 meters above the water surface. e. Salvage Floating objects move downstream along the main barrier net. Once captured by the main barrier net, workers on one side of the net use a speedboat to attach a hook to one end of a towing rope to the floating object. Workers on shore then assist in dragging the object to the bank, completing the retrieval.

[0006] Furthermore, prior to step e, two deceleration ropes are sequentially arranged at the front end of the main barrier net. The specific steps for arranging the deceleration ropes are as follows: Main anchor points and backup anchor points are pre-installed on both sides of the river channel at the location where the deceleration ropes are to be arranged. Then, workers use a rope launcher to launch one end of the deceleration rope to the opposite bank, and both ends of the deceleration rope are sequentially fixed to the main anchor point and the backup anchor point. This step, setting up two pre-positioned deceleration ropes, significantly reduces the instantaneous impact force of floating debris on the main barrier net in high-speed water flow, greatly improving the reliability of the entire barrier system and the service life of the main barrier net.

[0007] Furthermore, in step d, after the main rope passes through the guide frame, it is fixed to the main anchor point and the backup anchor point respectively. The guide frame includes a frame body, guide cylinders, and fixing clamps. The frame body is fixedly connected to both sides of the river channel corresponding to the main rope. Guide cylinders are provided at both the upper and lower ends of the frame body. The fixing clamps are clamped onto the outer wall of the guide cylinders and then fixed to the frame body. Both ends of the guide cylinders have openings, and a rubber ring is fixed at the opening. A through hole is passed through the center of the rubber ring, allowing the main rope to pass through. The introduction of the guide frame optimizes the force path of the main rope, significantly reduces rope wear, and improves installation accuracy and reliability, which is crucial for the main barrier net that is exposed to the harsh environment of uninhabited areas for a long time.

[0008] Furthermore, in step b, the specific installation steps for the main anchor point and the backup anchor point are as follows: First, holes are drilled at the installation points. Then, one end of an expansion bolt is inserted into the hole. The main anchor point and the backup anchor point are fixed to the installation points using expansion bolts, with the top of the expansion bolt passing through the four corners of the main anchor point and the backup anchor point. Then, nuts are tightened on the top of the expansion bolts, fixing the expansion bolts to the main anchor point. Simultaneously, the expansion screws are tightened in the holes, thus fixing the main anchor point and the backup anchor point to the installation points. This anchor point installation method provides a fast, reliable, and highly adaptable foundation fixing solution, particularly suitable for complex, hard riverbank environments in uninhabited areas where large machinery is lacking.

[0009] Furthermore, the main anchoring point includes a base, a guide member, a clamping frame, and a fixing ring. The guide member, clamping frame, and fixing ring are all fixedly connected to the base. The guide member is located at the top of the base near the main rope, and the fixing ring is located at the other top of the base. The clamping frame is positioned between the guide member and the fixing ring. The main rope is guided into the clamping frame through the guide member, and the clamping frame presses against the main rope. The main rope is then secured to the fixing ring. The backup anchoring point includes a base, a fixing ring, and a guide tube. Both the fixing ring and the guide tube are fixedly connected to the base. The guide tube is located at the end of the base near the main rope, and at least two fixing rings are located at the other end of the base. This specific structural design of the main and backup anchoring points achieves reliable and convenient fixing of the main rope and high redundancy connection, and significantly optimizes the load transfer path.

[0010] Furthermore, the first guide component includes a guide channel and a second guide cylinder. The guide channel is fixedly connected to the end of the second guide cylinder near the main rope. Both the first and second guide cylinders include a lower cylinder and an upper cylinder. The lower cylinder is fixedly connected to the end of the base one near the main rope, and the upper cylinder is fixedly connected to the lower cylinder. Both ends of the first and second guide cylinders are open, and a rubber ring two is fixedly connected to the opening. A through hole two passes through the center of the rubber ring two, allowing the main rope to pass through. The detailed structural design of this guide component is used to optimize the main rope guide path, minimize wear, and prevent rope slippage, which is crucial for the lifespan of ropes under long-term dynamic loads.

[0011] Furthermore, the clamping frame includes a sleeve, a support, a clamping plate, and an adjusting bolt. The support is fixedly connected to the bottom of the sleeve and to a base. Both ends of the sleeve have openings for the main rope to pass through. The clamping plate is located inside the sleeve, and each clamping plate has a limiting sleeve on its top. The top of the sleeve has a threaded hole corresponding to the limiting sleeve. The bottom of the adjusting bolt is screwed into the threaded hole, and the bottom of the adjusting bolt is rotatably connected to the limiting sleeve. By rotating the adjusting bolt, the clamping plate is pressed against the main rope inside the sleeve. The specific structural design of the clamping frame provides an adjustable, stable, and highly protective friction locking mechanism, solving the problem of main rope slippage under high loads and preventing damage to the rope.

[0012] Furthermore, the anchoring pile includes a sleeve pile and a connecting rod. Hanging rings are evenly distributed at the bottom of the main barrier net. The top of the connecting rod is fixedly connected to the hanging rings via a buckle. The bottom of the connecting rod is inserted into the sleeve pile, and the bottom of the connecting rod is fixedly connected to the inner wall of the sleeve pile via a fastener. The bottom of the sleeve pile is equipped with a connector, and the sleeve pile is fixed to the bottom of the water via the connector. This split design of the anchoring pile achieves modular, convenient installation, and high strength and reliability for underwater anchoring, making it particularly suitable for underwater operations in deep water and high-velocity conditions in uninhabited areas. Furthermore, the top of the connecting rod is provided with a limiting part, and the top of the sleeve pile is provided with a corresponding limiting hole. The limiting part passes through the limiting hole, so that the connecting rod cannot rotate relative to the sleeve pile. The bottom circumference of the outer wall of the connecting rod is provided with a limiting protrusion one, and the bottom circumference of the inner wall of the sleeve pile is provided with a limiting protrusion two. The fixing part adopts a fixing sleeve, the top of the fixing sleeve is provided with a corresponding insertion groove, the insertion groove is matched with the bottom of the connecting rod, and a limiting groove is also provided in the insertion groove, which is matched with the limiting protrusion one. The top of the fixing sleeve is provided with a groove corresponding to the limiting protrusion two, and the outer wall of the fixing sleeve is provided with an annular groove, which is connected to the groove. When the connecting rod and the sleeve pile are fixed, the fixing sleeve is inserted into the sleeve pile, so that the bottom of the connecting rod and the limiting protrusion one are inserted into the insertion groove, and the limiting protrusion two is inserted into the groove. Then, the fixing sleeve is rotated, and the limiting protrusion one is limited in the limiting groove, and the limiting protrusion two is limited in the annular groove. The precise connection structure between the connecting rod and the sleeve pile achieves a fast, reliable, rotation-resistant, and axially detachable rigid connection, ensuring the absolute stability of the anchor pile assembly under complex underwater stress environments. Furthermore, the connector includes a connecting cylinder, a plowing head, an adjusting component, and a connecting member. The plowing head is rotatably connected to the connecting cylinder, and the outer side of the plowing head is connected to one end of the connecting member. The adjusting component is connected to the other end of the connecting member, and the adjusting component drives the connecting member to rotate the plowing head. The connecting member includes a first connecting rod and a positioning ring. The positioning ring is movably connected to the outer side of the connecting cylinder. The outer side of the plowing head is provided with a first fixed seat. One end of the first connecting rod is hinged to the first fixed seat. The positioning ring is provided with a second fixed seat, and the other end of the first connecting rod is hinged to the second fixed seat. The adjusting component uses a second connecting rod. The top of the sleeve pile is provided with a ring-shaped mounting part. One end of the second connecting rod passes through the ring-shaped mounting part and is fixedly connected to the positioning ring. The top of the second connecting rod is provided with a gripping part, which controls the lifting and lowering of the second connecting rod to drive the plowing head to rotate. The top of the connecting cylinder is fixedly connected to the bottom of the sleeve pile. A stop block is provided inside the connecting cylinder, and the stop block abuts against the bottom of the fixed sleeve. The design of this connector enables the anchor pile to have strong underwater penetration performance, excellent pull-out resistance, and convenient attitude adjustment capabilities, allowing it to adapt efficiently and reliably to complex and varied riverbed sediments.

[0013] The present invention, by adopting the above-described technical solution, has the following beneficial effects: This invention forms a stable barrier in areas with slow-moving water using a main barrier net, ensuring that floating objects are effectively captured and not swept away by high current velocities. The method of erecting the ropes across the river 3-4 meters above the water surface avoids interference from water flow and facilitates the installation and laying of the barrier net. Anchor piles secure the bottom of the main barrier net to the seabed, increasing its stability and preventing floating objects from detaching from the main barrier net. The dual-fixing design of the main rope and main anchor points, as well as backup anchor points, enhances the stability of the barrier net, maintaining its function even if a single point fails. The coordinated use of towing ropes by personnel on shore and in the water reduces retrieval time, making it particularly suitable for uninhabited environments lacking mechanical assistance.

[0014] In this invention, the top of the connecting rod is provided with a limiting part, and the top of the sleeve pile is provided with a corresponding limiting hole. The limiting part passes through the limiting hole, so that the connecting rod cannot rotate relative to the sleeve pile. The bottom circumference of the outer wall of the connecting rod is provided with a limiting protrusion one, and the bottom circumference of the inner wall of the sleeve pile is provided with a limiting protrusion two. The fixing component is a fixing sleeve, the top of the fixing sleeve is provided with a corresponding insertion groove, the insertion groove is matched with the bottom of the connecting rod, and a limiting groove is also provided in the insertion groove, which is matched with the limiting protrusion one. The top of the fixing sleeve is provided with a groove corresponding to the limiting protrusion two, and the outer wall of the fixing sleeve is provided with an annular groove, which is connected to the groove. When the connecting rod and the sleeve pile are fixed, the fixing sleeve is inserted into the sleeve pile, so that the bottom of the connecting rod and the limiting protrusion one are inserted into the insertion groove, and the limiting protrusion two is inserted into the groove. Then the fixing sleeve is rotated, and the limiting protrusion one is limited in the limiting groove, and the limiting protrusion two is limited in the annular groove. The precise connection structure between the connecting rod and the sleeve pile achieves a fast, reliable, anti-rotation, and anti-axial dislodgement rigid connection, ensuring the absolute stability of the anchor pile assembly under complex underwater stress environments. The fit between the top limiting part and the limiting hole determines the circumferential position of the connecting rod upon insertion, effectively preventing any relative rotation of the connecting rod within the sleeve pile. This is crucial because the main net tension may include a torsional component; rotation could lead to fixation failure or wear and loosening of the connecting parts. Locking is achieved at the bottom through the "insertion-rotation" operation of the fixing sleeve, which is highly efficient. The insertion groove and limiting groove precisely accommodate the bottom of the connecting rod and its first limiting protrusion; the groove accommodates the second limiting protrusion on the inner wall of the sleeve pile; after rotation, the first limiting protrusion is locked within the limiting groove, while the second limiting protrusion slides into the annular groove. This locking method creates a double axial constraint. The engagement of the first limiting protrusion with the limiting groove directly prevents the connecting rod from being pulled upwards. After the second limiting protrusion slides into the annular groove, the fixing sleeve itself is restricted between the two limiting protrusions and cannot move axially, thus firmly holding the bottom of the connecting rod in place through the insertion groove of the fixing sleeve. This mechanical interlocking structure provides pull-out strength far exceeding that of friction or simple pins. The entire locking process can be completed simply by inserting and rotating the fixing sleeve, without the need for additional bolts, pins, or complex tools, reducing the difficulty and time of operation. Once the fixing sleeve is rotated into place, it is extremely stable under no external reverse operation and can reliably withstand huge vertical tensile forces and lateral water flow impact forces.

[0015] In this invention, the connector includes a connecting cylinder, a plowing head, an adjusting component, and a connecting member. The plowing head is rotatably connected to the connecting cylinder. The outer side of the plowing head is connected to one end of the connecting member, and the adjusting component is connected to the other end of the connecting member. The adjusting component drives the connecting member to rotate the plowing head. The connecting member includes a first connecting rod and a positioning ring. The positioning ring is movably connected to the outer side of the connecting cylinder. The outer side of the plowing head is provided with a first fixed seat. One end of the first connecting rod is hinged to the first fixed seat. The positioning ring is provided with a second fixed seat, and the other end of the first connecting rod is hinged to the second fixed seat. The adjusting component uses a second connecting rod. The top of the sleeve pile is provided with a ring-shaped mounting part. One end of the second connecting rod passes through the ring-shaped mounting part and is fixedly connected to the positioning ring. The top of the second connecting rod is provided with a gripping part. The gripping part controls the lifting and lowering of the second connecting rod to drive the plowing head to rotate. The top of the connecting cylinder is fixedly connected to the bottom of the sleeve pile. A stop block is provided inside the connecting cylinder, and the stop block abuts against the bottom of the fixed sleeve. The design of this connector enables the anchor pile to achieve strong underwater penetration performance, excellent pull-out resistance, and convenient attitude adjustment, allowing it to efficiently and reliably adapt to complex and varied riverbed conditions. The sharp design of the plow head facilitates penetration into various underwater bottom layers, including soft mud, gravel, and even some hard soil layers. During the driving of the sleeve pile, the plow head can be adjusted to form a drill bit structure, greatly reducing penetration resistance and facilitating the smooth and rapid insertion of the anchor pile to the predetermined depth. Once the anchor pile is in place, pulling the gripping part at the top of the second connecting rod moves the positioning ring along the connecting cylinder, which in turn drives the plow head to rotate and unfold to the working angle via the first connecting rod. The unfolded plow head is locked onto the bottom, increasing the contact area between the connector and the bottom, creating strong pull-out resistance. The stop block design limits and supports the fixing sleeve, maintaining a stable connection between the connecting rod and the sleeve pile. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the present invention where the main barrier net is erected above the river channel; Figure 2 This is a schematic diagram of the structure of the present invention after the main barrier net and deceleration ropes have been erected; Figure 3 This is a schematic diagram of the main barrier net in this invention; Figure 4 This is a schematic diagram of the guide frame structure in this invention; Figure 5 This is a schematic diagram of the main anchoring point in this invention; Figure 6 This is a schematic diagram of the structure of the spare anchor point in this invention; Figure 7 This is a schematic diagram of the clamping frame in this invention; Figure 8 This is a schematic diagram of the sleeve pile in this invention; Figure 9 This is a schematic diagram of the structure at the bottom of the sleeve pile in this invention; Figure 10 This is a schematic diagram of the connecting rod in this invention; Figure 11 This is a schematic diagram of the structure of the fixing sleeve in this invention; Figure 12 This is a schematic diagram of the structure of the connector in the present invention when it is in the form of a drill bit; Figure 13 This is a schematic diagram of the connector in this invention when it is opened; Figure 14 for Figure 6 Enlarged structural diagram at point A in the middle.

[0017] In the diagram, 1-Main anchor point; 2-Spare anchor point; 3-Main barrier net; 4-Anchor pile; 5-Main rope; 6-Deceleration rope; 7-Guide frame; 8-Frame body; 9-Guide cylinder; 10-Fixing clamp; 11-Rubber ring one; 12-Through hole one; 13-Expansion bolt; 14-Nut; 15-Base one; 16-Connecting component; 17-Pressure frame; 18-Fixing ring one; 19-Base two; 20-Fixing ring two; 21-Connecting cylinder one; 22-Connecting channel; 23-Connecting cylinder two; 24-Lower cylinder; 25-Upper cylinder; 26-Rubber ring two; 27-Through hole two; 28-Sleeve; 29 - Support; 30-Pressure plate; 31-Adjusting bolt; 32-Limit sleeve; 33-Sleeve pile; 34-Connecting rod; 35-Hanging ring; 36-Ring buckle; 37-Limiting part; 38-Limiting hole; 39-Limiting protrusion one; 40-Limiting protrusion two; 41-Fixing sleeve; 42-Insertion groove; 43-Limiting groove; 44-Groove; 45-Annular groove; 46-Connecting cylinder; 47-Plowing head; 48-Second connecting rod; 49-Connecting piece; 50-First connecting rod; 51-Positioning ring; 52-First fixed seat; 53-Second fixed seat; 54-Annular mounting part; 55-Grip part; 56-Stop block. Detailed Implementation

[0018] like Figures 1 to 14 The diagram illustrates the construction method for a water surface barrier net in a high-velocity, uninhabited area according to the present invention, comprising the following steps: a. Selecting recycling points The main barrier netting will be deployed in a downstream area with slow water flow, few undercurrents, and few obstacles in the river channel. b. Anchor point installation Based on the test drawings and the site conditions, main anchor point 1 and backup anchor point 2 were selected and installed on both sides of the river. c. Construction of the main barrier net 1) Ropeway construction across the river Workers used a water assault boat to set up a rope across the river, with the rope 3-4 meters above the water surface. 2) Installation of the main barrier net The workers first fixed the anchor pile 4 to the bottom of the main barrier net 3 on the shore, then hung the main barrier net 3 on the cross-river rope, and then pulled to the opposite bank by the guide rope. The workers then traveled to the underwater fixed point by water assault boat and drove the anchor pile 4 into the bottom of the water. d. Fixing of the main barrier net 3 Beforehand, main ropes 5 are set at the four corners of the main barrier net 3. One end of the main rope 5 is fixed to the main barrier net 3. Then, the other end of the main rope 5 is fixed to the main anchor point 1 and the spare anchor point 2 installed in step b in sequence. Then, the cross-river rope is untied so that the barrier net falls into the water and is spread out, with the barrier net protruding 1-2 meters above the water surface. e. Salvage The floating objects move downstream through the river channel to the main barrier net 3. Once the floating objects are captured by the main barrier net 3, the workers on one side of the barrier net use a speedboat to attach the hook at one end of the towing rope to the floating objects to be retrieved. The workers on the shore cooperate to drag the floating objects to the shore to complete the retrieval.

[0019] Before step e, two deceleration ropes 6 are sequentially arranged at the front end of the main barrier net 3. The specific steps for arranging the deceleration ropes 6 are as follows: a main anchor point 1 and a backup anchor point 2 are pre-installed on both sides of the river channel at the location where the deceleration ropes 6 are arranged. Then, the workers launch one end of the deceleration rope to the opposite bank using a net rope launcher. The two ends of the deceleration rope 6 are then fixed to the main anchor point 1 and the backup anchor point 2 in sequence. By setting up two pre-positioned deceleration ropes 6, the instantaneous impact force of floating objects on the main barrier net 3 in high-speed water flow is significantly reduced, greatly improving the reliability of the entire barrier system and the service life of the main net. In high-velocity water environments in uninhabited areas, the speed of floating objects downstream is extremely high. The huge kinetic energy generated by directly impacting the main net may cause the main net to tear, the anchor points to loosen, or even fail. Especially in uninhabited areas lacking immediate repair capabilities, a single large impact may lead to mission failure. Two deceleration ropes form a multi-stage buffer zone, dissipating the kinetic energy of floating debris in advance and causing it to approach the main net at a lower speed. This not only significantly reduces the peak load on the main net but also makes subsequent salvage operations easier to control and safer. The inclusion of backup anchor point 2 further enhances the redundancy and fault tolerance of the deceleration rope system, ensuring that even if one deceleration rope fails, the other can still provide some buffering, adding a crucial safety margin to the entire barrier system. In summary, this design effectively addresses the structural damage risks that can easily result from direct interception under high flow velocities and is key to ensuring long-term reliable interception operations in complex, uninhabited waters.

[0020] In step d, after the main rope 5 passes through the guide frame 7, it is fixed to the main anchor point 1 and the spare anchor point 2 respectively. The guide frame 7 includes a frame body 8, guide cylinders 9, and fixing clamps 10. The frame body 8 is fixedly connected to both sides of the river channel corresponding to the main rope 5. Guide cylinders 9 are provided at both the upper and lower ends of the frame body 8. The fixing clamps 10 are clamped to the outer wall of the guide cylinders 9 and fixed to the frame body 8. Both ends of the guide cylinders 9 have openings, and rubber rings 11 are fixed at the openings. A through hole 12 passes through the center of the rubber ring 11, allowing the main rope 5 to pass through. The introduction of the guide frame 7 is used to optimize the force path of the main rope 5, significantly reduce rope wear, and improve installation accuracy and reliability, which is crucial for the main barrier net 3 exposed to the harsh environment of the uninhabited area. It avoids the twisting, entanglement, or unexpected friction between the main rope 5 and the rocks and vegetation on the bank caused by uneven force. The design of the rubber ring 11, with its through-hole 12, allows the main rope 5 to pass smoothly while effectively buffering the hard contact between the rope and the edge of the metal guide cylinder 9 through the elastic material. This significantly reduces the risk of wear and cuts caused by the rope under the repeated action of high-frequency water flow pulsation, wind force, and impact loads, greatly extending the service life of the main rope 5 and reducing the difficulty and frequency of replacement and maintenance in uninhabited areas. The fixing clamp 10 ensures the stable installation of the guide cylinder 9, preventing its displacement or loosening. This guide frame 7 structure ensures uniform force distribution and efficient transmission of the main rope 5, greatly reducing rope wear and improving the stability and durability of the entire main net fixing structure. It is an effective guarantee for meeting the challenges of long-term service in high-velocity waters in uninhabited areas.

[0021] In step b, the specific installation steps for the main anchor point 1 and the spare anchor point 2 are as follows: First, holes are drilled at the installation points. Then, one end of the expansion bolt 13 is inserted into the hole, and the main anchor point 1 and the spare anchor point 2 are fixed to the installation points respectively using the expansion bolt 13, so that the top of the expansion bolt 13 passes through the four corners of the main anchor point 1 and the spare anchor point 2. Then, the nut 14 is tightened on the top of the expansion bolt 13, so that the expansion bolt 13 is fixedly connected to the main anchor point 1. At the same time, the expansion screw is tightened in the hole, thereby fixing the main anchor point 1 and the spare anchor point 2 to the installation points respectively. This anchor point installation method provides a fast, reliable and highly adaptable foundation fixing solution, which is particularly suitable for the complex, hard riverbank environment in uninhabited areas where there is a lack of large-scale mechanical construction conditions. The combination of drilling + expansion bolt 13 + double nut 14 has multiple advantages: First, compared with pre-embedded concrete foundations, this method has a faster construction speed and lower equipment requirements, significantly reducing the implementation difficulty and construction cost in remote uninhabited areas. Secondly, the expansion bolts 13 generate strong radial pressure within the hole wall through mechanical expansion, providing extremely high initial tensile and shear strength, effectively resisting the enormous and directional tensile loads transmitted from the main rope 5. The design of bolts at the four corners of the anchor point and tightened with nuts 14 ensures a tight fit and uniform stress distribution between the anchor point base and the rock surface, preventing pitting corrosion or bolt loosening caused by localized stress concentration. The overall structure is robust and reliable, capable of withstanding repeated impact loads from the barrier net system under extreme water flow conditions. The parallel installation of the backup anchor points 2 provides redundancy; if the main anchor point 1 fails unexpectedly, the backup point can immediately assume the load, greatly enhancing the survivability and mission reliability of the entire system in uninhabited environments. This installation method is key to achieving efficient and reliable anchoring under harsh conditions.

[0022] The main anchor point 1 includes a base 15, a guide 16, a clamping frame 17, and a fixing ring 18. The guide 16, clamping frame 17, and fixing ring 18 are all fixedly connected to the base 15. The guide 16 is located at the top of the base 15 near the main rope 5, and the fixing ring 18 is located at the other end of the top of the base 15. The clamping frame 17 is located between the guide 16 and the fixing ring 18. The main rope 5 is guided into the clamping frame 17 through the guide 16. The clamping frame 17 clamps the main rope 5, and the main rope 5 is tied to the fixing ring 18 for fixation. The spare anchor point 2 includes a base 29, a fixing ring 20, and a guide tube 21. The fixing ring 20 and the guide tube 21 are both fixedly connected to the base 29. The guide tube 21 is located at the end of the base 29 near the main rope 5, and at least two fixing rings 20 are located at the other end of the base 29. The specific structural design of the main anchor point 1 and the backup anchor point 2 achieves reliable, convenient fixing and high redundancy connection of the main rope 5, and significantly optimizes the load transfer path. For the main anchor point 1: the guide member 16 provides initial introduction and guidance, ensuring that the main rope 5 smoothly enters the clamping area. The core function of the clamping frame 17 is to apply a controllable clamping force, forming a reliable friction fixing point on the main rope 5 through mechanical clamping, effectively distributing the tension borne by the fixing ring 18, and greatly reducing the risk of slippage of the main rope 5 at the fixing ring 18 or the risk of rope end breakage due to stress concentration. The fixing ring 18 provides the final safety mooring point, forming a double insurance mechanism of friction fixing and mechanical mooring, which greatly improves the reliability and impact resistance of the main rope 5 connection. For the backup anchor point 2: the guide tube 21 also provides an introduction and guidance function. The key design is to set at least two fixing rings 20. This provides significant redundancy: even if one fixing ring 20 or its connecting parts are accidentally damaged, the other fixing ring 20 can still provide sufficient load-bearing capacity. Furthermore, multiple fixed rings allow for more flexible main rope tethering methods, further distributing the load and reducing the risk of single-point failure. The combination of dual fixing of the main anchor point and multi-point tethering redundancy design of the backup anchor point ensures that the anchoring system has extremely high stability, reliability, and fault tolerance in the face of huge and unstable water flow impacts in high-velocity, high-risk environments in uninhabited areas. This is the foundation for ensuring the long-term stability of the entire barrier net system.

[0023] The guide component 16 includes a guide channel 22 and a guide tube 23. The guide channel 22 is fixedly connected to the end of the guide tube 23 near the main rope 5. Both the first guide tube 21 and the second guide tube 23 include a lower tube body 24 and an upper tube body 25. The lower tube body 24 is fixedly connected to the end of the base 15 near the main rope 5. The upper tube body 25 is fixedly connected to the lower tube body 24 to form the guide tube. The two ends of the guide tube are open, and a rubber ring 26 is fixedly connected to the opening. A through hole 27 is passed through the center of the rubber ring 26, allowing the main rope 5 to pass through. The detailed structural design of this guide component 16 is used to optimize the guide path of the main rope 5, minimize wear, and prevent rope slippage, which is crucial for the lifespan of the rope under long-term dynamic loads. The guide channel 22 plays a guiding role in anchoring the main rope 5 and at the same time reduces rope wear. The guide tube adopts a split structure with upper and lower tubes 24. The lower tube 24 is fixed to the base, while the upper tube 25 can be detached or fixedly connected, facilitating manufacturing, transportation, and partial replacement in case of damage. The most crucial design element is the rubber rings 26 at both ends. The through-hole 27 provides a smooth, low-friction path for the rope, while the rubber material offers excellent elasticity and wear resistance. The functions of the rubber rings 26 are: 1) Significantly reduced friction and wear: As a flexible pad, the rubber rings 26 effectively prevent continuous cutting and wear of the main rope 5 by the metal tube edge, especially protecting the rope surface fibers during high-frequency vibration and small displacements, significantly extending the service life of the main rope 5. 2) Effective sealing against dust / foreign objects: The rubber rings 26, tightly fitted to the main rope 5, prevent foreign objects such as mud, sand, and small gravel from entering the guide tube, avoiding them getting trapped between the rope and the tube wall and aggravating wear. 3) Cushioning and Guiding: Rubber Ring 26 can deform slightly to accommodate the slight swing of the rope and provide continuous elastic guidance to prevent the rope from hard bending or excessive friction at the end of the drum, ensuring smooth rope movement.

[0024] The clamping frame 17 includes a sleeve 28, a support 29, a clamping plate 30, and an adjusting bolt 31. The support 29 is fixedly connected to the bottom of the sleeve 28 and to the base 15. Both ends of the sleeve 28 have openings for the main rope 5 to pass through. The clamping plate 30 is located inside the sleeve 28, and each clamping plate 30 has a limiting sleeve 32 on its top. The top of the sleeve 28 has a threaded hole corresponding to the limiting sleeve 32. The bottom of the adjusting bolt 31 is screwed into the threaded hole, and the bottom of the adjusting bolt 31 is rotatably connected to the limiting sleeve 32. By rotating the adjusting bolt 31, the clamping plate 30 is pressed against the main rope 5 inside the sleeve 28. The specific structural design of this clamping frame 17 provides an adjustable, stable, and highly protective friction locking mechanism, solving the problem of slippage of the main rope 5 under high load and avoiding damage to the rope. By rotating the adjusting bolt 31, the positive pressure of the clamping plate 30 on the main rope 5 inside the sleeve 28 can be precisely and continuously controlled, thereby adjusting the magnitude of the friction force. This allows operators to set the optimal clamping force according to the actual working conditions, ensuring sufficient anti-slip friction while avoiding damage to the internal fibers of the rope due to overpressure, which would reduce its strength. The sleeve 28 provides a rigid constraint space for the clamping plate 30 and the rope, ensuring that the clamping force is evenly applied to the circumference of the rope. The clamping plate 30 provides a large contact area, dispersing pressure, reducing stress, and protecting the rope. The rotating connection design at the bottom of the limiting sleeve 32 and the adjusting bolt 31 ensures that when the bolt rotates, it only drives the clamping plate 30 to move up and down without rotating with it, preventing twisting damage to the rope caused by bolt rotation. This adjustment mechanism is simple and reliable; locking or releasing can be completed simply by manually turning the bolt. Compared to traditional knots, rope clamps, or one-time crimping, this repeatedly adjustable mechanical clamping method not only provides reliable initial fixation in uninhabited, high-flow-rate water environments, but also adapts to creep or slight slack that may occur during rope use, facilitating re-tensioning during maintenance and significantly improving the reliability and adaptability of the main rope 5 at the anchor point.

[0025] The anchor pile 4 includes a sleeve pile 33 and a connecting rod 34. Hanging rings 35 are evenly distributed at the bottom of the main barrier net 3. The top of the connecting rod 34 is fixedly connected to the hanging rings 35 via a ring buckle 36. The bottom of the connecting rod 34 is inserted into the sleeve pile 33, and the bottom of the connecting rod 34 is fixedly connected to the inner wall of the sleeve pile 33 via a fastener. The bottom of the sleeve pile 33 is equipped with a connector, and the sleeve pile 33 is fixed to the bottom of the water via the connector. This split design of the anchor pile 4 achieves modular, convenient installation, and high strength and reliability for underwater anchoring, making it particularly suitable for underwater operations in deep water and high-velocity conditions in uninhabited areas. The separate sleeve pile 33 and connecting rod 34 facilitate transportation and handling. Workers on the inflatable boat can first connect the hanging rings 35 of the main barrier net 3 to the buckles 36 at the top of the connecting rod 34 from the shore or on the boat. This greatly simplifies the extremely difficult and risky task of simultaneously operating the heavy main net and driving piles underwater in turbulent currents and low visibility. The surface connection significantly improves operational safety and efficiency.

[0026] The top of the connecting rod 34 is provided with a limiting part 37, and the top of the sleeve pile 33 is provided with a corresponding limiting hole 38. The limiting part 37 passes through the limiting hole 38, so that the connecting rod 34 cannot rotate relative to the sleeve pile 33. The bottom circumference of the outer wall of the connecting rod 34 is provided with a limiting protrusion 39, and the bottom circumference of the inner wall of the sleeve pile 33 is provided with a corresponding limiting protrusion 40. The fixing part adopts a fixing sleeve 41, and the top of the fixing sleeve 41 is provided with a corresponding insertion groove 42. The insertion groove 42 is matched with the bottom of the connecting rod 34. The insertion groove 42 is also provided with a limiting groove 43. The limiting groove 43 and the limiting part 37 pass through the limiting hole 38, so that the connecting rod 34 cannot rotate relative to the sleeve pile 33. The first protrusion 39 is matched with the top of the fixing sleeve 41, which has a groove 44 corresponding to the second limiting protrusion 40. The outer wall of the fixing sleeve 41 has an annular groove 45, which is connected to the groove 44. When the connecting rod 34 is fixed to the sleeve pile 33, the fixing sleeve 41 is inserted into the sleeve pile 33, so that the bottom of the connecting rod 34 and the first limiting protrusion 39 are inserted into the insertion groove 42, and the second limiting protrusion 40 is inserted into the groove 44. Then, the fixing sleeve 41 is rotated, and the first limiting protrusion 39 is limited in the limiting groove 43, and the second limiting protrusion 40 is limited in the annular groove 45. This precise connection structure between the connecting rod 34 and the sleeve pile 33 realizes a fast, reliable, anti-rotation and anti-axial dislodgement rigid connection, ensuring the absolute stability of the anchor pile 4 assembly in the complex underwater stress environment. The engagement of the top limiting part 37 and the limiting hole 38 determines the circumferential position of the connecting rod 34 at the moment of insertion, effectively preventing any relative rotation of the connecting rod 34 within the sleeve pile 33. This is crucial because the main net tension may include a torsional component, and rotation could lead to fixation failure or wear and loosening of the connecting parts. The bottom is locked by the "insertion-rotation" operation of the fixing sleeve 41, which is highly efficient. The insertion groove 42 and the limiting groove 43 precisely accommodate the bottom of the connecting rod 34 and its limiting protrusion 1 39; the groove 44 accommodates the limiting protrusion 2 40 on the inner wall of the sleeve pile 33; after rotation, the limiting protrusion 1 39 is locked in the limiting groove 43, while the limiting protrusion 2 40 slides into the annular groove 45. This locking method creates a double axial constraint. The engagement of the first limiting protrusion 39 and the limiting groove 43 directly prevents the connecting rod 34 from being pulled upwards. After the second limiting protrusion 40 slides into the annular groove 45, the fixing sleeve 41 itself is restricted between the second limiting protrusion 40 and cannot move axially, thus firmly holding the bottom of the connecting rod 34 in place through the insertion groove 42 of the fixing sleeve 41. This mechanical interlocking structure provides pull-out strength far exceeding that of friction or simple pins. The entire locking process can be completed simply by inserting and rotating the fixing sleeve 41, without the need for additional bolts, pins, or complex tools, reducing the difficulty and time of operation. Once the fixing sleeve 41 is rotated into place, it is extremely stable under reverse operation without external force and can reliably withstand huge vertical tensile forces and lateral water flow impact forces.

[0027] The connector includes a connecting cylinder 46, a plowing head 47, an adjusting member, and a connecting member 49. The plowing head 47 is rotatably connected to the connecting cylinder 46. The outer side of the plowing head 47 is connected to one end of the connecting member 49, and the adjusting member is connected to the other end of the connecting member 49. The adjusting member drives the connecting member 49 to rotate the plowing head 47. The connecting member 49 includes a first connecting rod 50 and a positioning ring 51. The positioning ring 51 is movably connected to the outer side of the connecting cylinder 46. The outer side of the plowing head 47 is provided with a first fixed seat 52. One end of the first connecting rod 50 is hinged to the first fixed seat 52. The positioning ring 51... A second fixed seat 53 is provided, and the other end of the first connecting rod 50 is hinged to the second fixed seat 53. The adjusting component is a second connecting rod 48. The top of the sleeve pile 33 is provided with a ring-shaped mounting part 54. One end of the second connecting rod 48 passes through the ring-shaped mounting part 54 and is fixedly connected to the positioning ring 51. The top of the second connecting rod 48 is provided with a gripping part 55. The gripping part 55 controls the lifting and lowering of the second connecting rod 48, which drives the plowing head 47 to rotate. The top of the connecting cylinder 46 is fixedly connected to the bottom of the sleeve pile 33. The connecting cylinder 46 is provided with a stop block 56, which abuts against the bottom of the fixed sleeve 41. This plug-in design enables the anchor pile 4 to achieve strong underwater soil penetration performance, excellent pull-out resistance, and convenient attitude adjustment capability, making it able to adapt efficiently and reliably to complex and varied riverbed strata. The sharp design of the plowing head 47 is conducive to penetrating various underwater bottom strata such as soft mud, gravel, and even some hard soil layers. During the driving of the sleeve pile 33, the plowing head 47 can be adjusted to form a drill bit structure, greatly reducing the penetration resistance and facilitating the smooth and rapid insertion of the anchor pile 4 to the predetermined depth. Once the anchor pile 4 is in place, pulling the gripping part 55 at the top of the second connecting rod 48 moves the positioning ring 51 along the connecting cylinder 46, which in turn drives the plowing head 47 to rotate and unfold to the working angle via the first connecting rod 50. The unfolded plowing head 47 is secured to the bottom of the water, increasing the contact area between the connector and the bottom, thus creating strong pull-out resistance. The stop block 56 is designed to limit and support the fixing sleeve 41, maintaining a stable connection between the connecting rod 34 and the sleeve pile 33.

[0028] This invention forms a stable barrier in areas with slow-moving water using the main barrier net 3, ensuring that floating objects can be effectively captured and not swept away by high current velocities. The method of setting up the cross-river rope 3-4 meters above the water surface avoids water flow impact and interference with operations, and facilitates the installation and laying of the barrier net. The anchor piles 4 fix the bottom of the main barrier net 3 to the bottom of the water, increasing the stability of the main barrier net 3 and preventing floating objects from detaching from the bottom of the main barrier net 3. The double fixing design of the main rope 5 and the main anchor point 1 and the spare anchor point 2 enhances the stability of the barrier net, and can maintain its function even if a single point fails. The cooperation between personnel on the shore and on the water by dragging the rope reduces the salvage time, and it is especially suitable for uninhabited environments lacking mechanical assistance.

[0029] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A method for constructing a water surface barrier net in a high-velocity uninhabited area, characterized in that... Includes the following steps: a. Selecting recycling points The main barrier netting will be deployed in a downstream area with slow water flow, few undercurrents, and few obstacles in the river channel. b. Anchor point installation Based on the test drawings and the site conditions, main anchor points and backup anchor points were selected and installed on both sides of the river. c. Construction of the main barrier net 1) Ropeway construction across the river Workers used a water assault boat to set up a rope across the river, with the rope 3-4 meters above the water surface. 2) Installation of the main barrier net The workers first fixed the anchor piles to the bottom of the main barrier net on the shore, then hung the main barrier net on the cross-river rope, and then pulled to the opposite bank by the guide rope. The workers then traveled to the underwater fixed point by water assault boat and drove the anchor piles into the bottom of the water. d. Fixing the main barrier net Pre-install main ropes at the four corners of the main barrier net. Fix one end of the main rope to the main barrier net, and then fix the other end of the main rope to the main anchor point and the spare anchor point installed in step b in sequence. Then untie the cross-river ropes to let the barrier net fall into the water and be spread out, with the barrier net protruding 1-2 meters above the water surface. e. Salvage Floating objects move downstream along the main barrier net. Once captured by the main barrier net, workers on one side of the net use a speedboat to attach a hook to one end of a towing rope to the floating object. Workers on shore then assist in dragging the object to the bank, completing the retrieval.

2. The construction method for water surface barrier nets in high-velocity uninhabited waters according to claim 1, characterized in that: Before step e, two deceleration ropes are arranged in sequence at the front end of the main barrier net. The specific steps for arranging the deceleration ropes are as follows: a main anchor point and a backup anchor point are installed on both sides of the river at the location where the deceleration ropes are arranged. Then, the workers launch one end of the deceleration rope to the opposite bank through a net rope launcher. The two ends of the deceleration rope are then fixed to the main anchor point and the backup anchor point in sequence.

3. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 1, characterized in that: In step d, after the main rope passes through the guide frame, it is fixed to the main anchor point and the spare anchor point respectively. The guide frame includes a frame body, a guide cylinder and a fixing clamp. The frame body is fixedly connected to both sides of the river channel corresponding to the main rope. The upper and lower ends of the frame body are provided with guide cylinders. The fixing clamp is clamped to the outer wall of the guide cylinder and then fixed to the frame body. Both ends of the guide cylinder are provided with openings. A rubber ring is fixed at the opening. A through hole is passed through the center of the rubber ring for the main rope to pass through.

4. The construction method for water surface barrier nets in high-velocity uninhabited waters according to claim 1, characterized in that: In step b, the specific installation steps for the main anchor point and the backup anchor point are as follows: First, drill holes at the installation points, then insert one end of the expansion bolt into the holes, and fix the main anchor point and the backup anchor point to the installation points respectively using the expansion bolts, so that the top of the expansion bolt passes through the four corners of the main anchor point and the backup anchor point. Then, tighten the nut on the top of the expansion bolt, so that the expansion bolt is fixedly connected to the main anchor point, and at the same time, the expansion screw is tightened in the hole, thereby fixing the main anchor point and the backup anchor point to the installation points respectively.

5. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 1, characterized in that: The main anchoring point includes a base one, a guide member, a clamping frame, and a fixing ring one. The guide member, the clamping frame, and the fixing ring one are all fixedly connected to the base one. The guide member is located at the top of the base one near the main rope, and the fixing ring one is located at the other end of the top of the base one. The clamping frame is located between the guide member and the fixing ring one. The main rope is guided into the clamping frame through the guide member, and the clamping frame presses against the main rope. The main rope is tied to the fixing ring one for fixation. The spare anchoring point includes a base two, a fixing ring two, and a guide tube one. The fixing ring two and the guide tube one are both fixedly connected to the base two. The guide tube one is located at the top of the base two near the main rope, and at least two fixing rings two are located at the other end of the base two.

6. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 5, characterized in that: The first receiving component includes a receiving channel and a second receiving tube. The receiving channel is fixedly connected to one end of the second receiving tube near the main rope. Both the first receiving tube and the second receiving tube include a lower tube body and an upper tube body. The lower tube body is fixedly connected to one end of the base near the main rope, and the upper tube body is fixedly connected to the lower tube body. Both ends of the first receiving tube and the second receiving tube are open, and a rubber ring is fixedly connected to the opening. A through hole is passed through the center of the rubber ring, allowing the main rope to pass through.

7. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 5, characterized in that: The clamping frame includes a sleeve, a support, a clamping plate, and an adjusting bolt. The support is fixedly connected to the bottom of the sleeve and to the base. Both ends of the sleeve have openings for the main rope to pass through. The clamping plate is located inside the sleeve, and the top of the clamping plate has a limiting sleeve. The top of the sleeve has a threaded hole corresponding to the limiting sleeve. The bottom of the adjusting bolt is screwed into the threaded hole, and the bottom of the adjusting bolt is rotatably connected to the limiting sleeve. By rotating the adjusting bolt, the clamping plate is pressed against the main rope inside the sleeve.

8. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 1, characterized in that: The anchor pile includes a sleeve pile and a connecting rod. Hanging rings are evenly distributed at the bottom of the main barrier net. The top of the connecting rod is fixedly connected to the hanging rings by a ring buckle. The bottom of the connecting rod is inserted into the sleeve pile. The bottom of the connecting rod is fixedly connected to the inner wall of the sleeve pile by a fastener. The bottom of the sleeve pile is provided with a plug-in component. The sleeve pile is fixed to the bottom of the water by the plug-in component.

9. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 8, characterized in that: The connecting rod has a limiting part at its top, and the sleeve pile has a corresponding limiting hole at its top. The limiting part passes through the limiting hole, preventing the connecting rod from rotating relative to the sleeve pile. A limiting protrusion is distributed around the bottom circumference of the outer wall of the connecting rod, and a second limiting protrusion is distributed around the bottom circumference of the inner wall of the sleeve pile. The fixing component is a fixing sleeve, and the top of the fixing sleeve has a corresponding insertion groove. The insertion groove matches the bottom of the connecting rod, and a limiting groove is also provided within the insertion groove. The limiting groove and the limiting protrusion... In a matching configuration, the top of the fixing sleeve has a groove corresponding to the second limiting protrusion, and the outer wall of the fixing sleeve has an annular groove. The annular groove is connected to the groove. When the connecting rod is fixed to the sleeve pile, the fixing sleeve is inserted into the sleeve pile, so that the bottom of the connecting rod and the first limiting protrusion are inserted into the insertion groove, and the second limiting protrusion is inserted into the groove. Then, the fixing sleeve is rotated, and the first limiting protrusion is limited in the limiting groove, and the second limiting protrusion is limited in the annular groove.

10. The method for constructing a water surface barrier net in a high-velocity uninhabited area according to claim 8, characterized in that: The connector includes a connecting cylinder, a plowing head, an adjusting component, and a connecting member. The plowing head is rotatably connected to the connecting cylinder. The outer side of the plowing head is connected to one end of the connecting member, and the adjusting component is connected to the other end of the connecting member. The adjusting component drives the connecting member to rotate the plowing head. The connecting member includes a first connecting rod and a positioning ring. The positioning ring is movably connected to the outer side of the connecting cylinder. The outer side of the plowing head is provided with a first fixed seat. One end of the first connecting rod is hinged to the first fixed seat. The positioning ring is provided with a second fixed seat, and the other end of the first connecting rod is hinged to the second fixed seat. The adjusting component uses a second connecting rod. The top of the sleeve pile is provided with a ring-shaped mounting part. One end of the second connecting rod passes through the ring-shaped mounting part and is fixedly connected to the positioning ring. The top of the second connecting rod is provided with a gripping part, which controls the lifting and lowering of the second connecting rod to rotate the plowing head. The top of the connecting cylinder is fixedly connected to the bottom of the sleeve pile. A stop block is provided inside the connecting cylinder, and the stop block abuts against the bottom of the fixed sleeve.

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