A net bag type fishing device for cleaning water surface of alligator weed

Abstract

The utility model relates to the technical field of aquatic plant treatment, especially relates to a net bag type salvage device for hollow salvinia cucullata water surface floating cleaning. The utility model provides a net bag type salvage device for hollow salvinia cucullata water surface floating cleaning, including connecting rod, main frame, net bag, rope ring, fixed pulley, sliding rod and threaded pegs etc. The connecting rod is connected on the main frame, the net bag is installed on the main frame, the rope ring is arranged on the net bag, the fixed pulley is rotatably installed on the main frame, the threaded peg is movably arranged on the connecting rod, and the sliding rod is movably connected on the threaded peg. The utility model adjusts the threaded peg position and handle drive reel to receive and release the pull rope, realizes the flexible control of net bag opening and closing and salvage distance, and reaches the effect that long-distance, efficient and convenient salvage hollow salvinia cucullata water surface floating.

Description

Technical Field

[0001] This utility model relates to the field of aquatic plant management technology, and in particular to a net-type retrieval device for cleaning up floating algae on the water surface. Background Technology

[0002] Hollow-stemmed almond, commonly known as water peanut or revolutionary grass, is a perennial herbaceous plant belonging to the genus *Alternanthera* in the family Amaranthaceae, native to South America. It has been listed in my country's first batch of invasive alien species and is one of the world's most harmful invasive plants. This plant exhibits both aquatic and wetland characteristics, widely distributed in rivers, lakes, ditches, rice paddies, and other aquatic environments. It spreads rapidly through stolons, rooting at the nodes to form new plants, demonstrating an extremely strong clonal reproductive capacity. A single plant can spread rapidly, covering the water surface, obstructing water flow, reducing dissolved oxygen, inhibiting the growth of native plants, and severely disrupting the balance of the aquatic ecosystem. It poses a significant threat to agricultural irrigation, aquaculture, and the operation of water conservancy facilities.

[0003] Currently, the control of Hollow Lotus Grass mainly relies on a combination of manual harvesting and mechanical removal. However, existing mechanized harvesting equipment generally suffers from many technical defects: most equipment is bulky and difficult to operate flexibly in narrow or shallow water areas; the collection devices are mostly fixed nets or buckets, which cannot be remotely controlled to open and close, requiring operators to frequently approach the water to manually dump the waste, posing safety hazards; a more prominent problem is the unreasonable design of the unloading structure, with the harvesting and unloading processes disconnected, often requiring auxiliary tools or multiple people to complete the dumping, causing operation interruptions and low efficiency; in addition, the equipment lacks length adjustment functions, making it unable to adapt to different water depths and operating distances, thus limiting its applicability.

[0004] Therefore, there is an urgent need for an efficient and convenient net-type retrieval device for cleaning up floating hollow lotus grass on the water surface. Summary of the Invention

[0005] In order to overcome the shortcomings of low collection efficiency of existing mechanized salvage equipment, this utility model provides a net-type salvage device for cleaning up floating hollow lotus grass on the water surface.

[0006] The technical solution of this utility model is as follows: This utility model provides a net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface, including a connecting rod, a main frame, a net, a rope loop, a fixed pulley, a sliding rod, a threaded pin, a winding reel, a handle, and a pull rope. The connecting rod is connected to the main frame, the net is installed on the main frame, the rope loop is provided on the net, the fixed pulley is rotatably installed on the main frame, the threaded pin is movably provided on the connecting rod, the sliding rod is movably connected to the threaded pin, the winding reel is rotatably installed on the sliding rod, the handle is connected to one side of the winding reel, and a pull rope is wound on the winding reel. The pull rope is slidably connected to the fixed pulley and the rope loop.

[0007] Preferably, it further includes a guide rod, a locking block, a spring, and a top block. The guide rod is installed on the sliding rod, and the locking blocks are symmetrically and slidably installed on the guide rod. The spring is sleeved on the guide rod, and the two ends of the spring are respectively connected to the locking blocks on both sides. The locking blocks are movably engaged with the winding reel. The top block is slidably installed on the sliding rod, and the top block is in movable contact with the locking blocks.

[0008] Preferably, it also includes a handle, which is provided on the connecting rod.

[0009] Preferably, it also includes an auxiliary handle, which is installed on the connecting rod.

[0010] Preferably, it also includes anti-slip sleeves, with anti-slip sleeves fitted on both the handle and the auxiliary handle.

[0011] Preferably, the connecting rod is provided with a plurality of insertion holes that are evenly spaced apart and fit into the threaded pins.

[0012] The beneficial effects of this utility model are: 1. This utility model achieves flexible control over the opening and closing of the net and the retrieval distance by adjusting the position of the threaded pin and the handle-driven winding reel, thus achieving the effect of long-distance, efficient, and convenient retrieval of floating hollow lotus seeds.

[0013] 2. This utility model uses a handle to drive the winding reel to wind the pull rope and utilizes the spring self-locking structure of the locking block and the slot to achieve the closing and locking of the net bag. Pulling the top block upwards causes the locking block to disengage and unlock, releasing the pull rope and allowing the net bag to open, thus achieving the effects of automatic locking, controllable release, and efficient dumping of floating objects. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the sliding rod, threaded pin, and winding reel of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the card block and spring components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the sliding rod and top block components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the handle, auxiliary handle, and anti-slip sleeve of this utility model.

[0019] The labels in the attached diagram are: 1-connecting rod, 2-main frame, 3-net bag, 4-rope loop, 5-fixed pulley, 6-sliding rod, 7-threaded pin, 8-winding reel, 9-handle, 10-pull rope, 11-guide rod, 12-block, 13-spring, 14-top block, 15-handle, 16-auxiliary handle, 17-anti-slip sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1: A net-type retrieval device for cleaning up floating hollow lotus grass on the water surface, such as... Figures 1-2 As shown, the device includes a connecting rod 1, a main frame 2, a net bag 3, a rope loop 4, a fixed pulley 5, a sliding rod 6, a threaded pin 7, a winding reel 8, a handle 9, and a pull rope 10. The connecting rod 1 is connected to the upper front side of the main frame 2, and the net bag 3 is installed at the rear end of the main frame 2. The net bag 3 is woven from corrosion-resistant and anti-aging nylon or polyethylene material, with good water permeability and sufficient load-bearing capacity, effectively catching the harvested hollow lotus grass and other floating debris. A closed rope loop 4 is sewn around the bottom edge of the net bag 3. This rope loop 4 is a hollow ring structure used to control the opening and closing of the bottom of the net bag 3. When the rope loop 4 is tightened, the bottom of the net bag 3 is closed to prevent the plants from slipping off. When the rope loop 4 is loosened, the net bag 3 naturally opens for easy collection and dumping. The main frame 2 has a fixed pulley 5 rotatably mounted on its lower part, and a threaded pin 7 is movably mounted on the connecting rod 1. A row of insertion holes matching the threaded pin 7 is evenly opened on the connecting rod 1 along its length. By adjusting the insertion of the threaded pin 7 into different positions of the insertion holes, a horizontally arranged sliding rod 6 can be movably installed, thereby realizing the adjustment and fixation of the position of the sliding rod 6 on the connecting rod 1. A winding reel 8 is rotatably mounted on the sliding rod 6. A handle 9 is connected to the right side of the winding reel 8. A pull rope 10 is wound on the winding reel 8. One end of the pull rope 10 is fixed to the winding reel 8, and the other end passes through the fixed pulley 5 in sequence, and then passes through the hollow area of ​​the rope loop 4. After passing through the fixed pulley 5 again, it is finally fixed back to the winding reel 8, forming a closed traction circuit.

[0022] Operators can flexibly apply the technical solution of this device to the relevant technologies for cleaning floating objects on the water surface according to actual operational needs. When using this device to retrieve hollow lotus grass, first, according to the working distance and operating habits, insert the threaded pin 7 into the corresponding hole on the connecting rod 1 to fix the sliding rod 6, thereby adjusting the length and center of gravity of the entire device to achieve flexible switching between long-distance and short-distance retrieval. If it is necessary to extend the working range, the connecting rod 1 can be adjusted to a longer state to expand the retrieval radius. Then, turn the handle 9 to drive the winding disc 8 to rotate, so that the pull rope 10 is gradually wound up. The pull rope 10 is guided by the fixed pulley 5 to pull the rope loop 4 on the edge of the net bag 3 to close, thereby sealing the bottom of the net bag 3. Push the device smoothly into the area where hollow lotus grass is floating on the water surface. After the net bag 3 has fully caught the plants, slowly lift the net bag 3 to complete an efficient and leak-free retrieval operation.

[0023] Example 2: Based on Example 1, such as Figures 3-5 As shown, it also includes a guide rod 11, locking blocks 12, a spring 13, a top block 14, a handle 15, an auxiliary handle 16, and an anti-slip sleeve 17. A guide rod 11 is provided on the rear side of the sliding rod 6. Two symmetrically arranged locking blocks 12 are slidably installed at both ends of the guide rod 11. Multiple sets of slots are evenly opened on both sides of the winding reel 8, forming a movable locking structure with the locking blocks 12. A spring 13 is sleeved on the guide rod 11. The two ends of the spring 13 are connected to the locking blocks 12 on both sides respectively. Under normal conditions, under the elastic force of the spring 13, the two locking blocks 12 move towards the middle and are embedded in the slots of the winding reel 8, realizing the automatic locking function of the winding reel 8, preventing it from being locked due to gravity or water during the retrieval process. The impact of the current caused the pull rope 10 to come loose unexpectedly, ensuring that the net bag 3 is closed stably and reliably. The sliding rod 6 has a sliding top block 14 with an inverted V-shaped block structure at its rear end. The top block 14 can push the two side blocks 12 open to both sides simultaneously along the guide rod 11. A handle 15 is installed at the rear end of the connecting rod 1, and an auxiliary handle 16 is installed at the front end of the connecting rod 1, forming a two-hand grip structure, which makes it easy for the operator to flexibly operate the device under different angles and water depths. The surfaces of the handle 15 and the auxiliary handle 16 are covered with soft and non-slip silicone anti-slip sleeves 17, which not only effectively prevent the hands from slipping, but also have good shock absorption and anti-fatigue effects, significantly improving the comfort of long-term operation.

[0024] Operators can apply the relevant technical solutions of this device to related technologies such as cleaning floating plants on the water surface or water environment management, depending on the specific working environment. When it is necessary to use this device to harvest hollow lotus grass, turn the handle 9 to drive the winding reel 8 to rotate, and the pull rope 10 will gradually close the net bag 3. During this process, the slot on the winding reel 8 and the locking block 12 on the guide rod 11 will automatically engage under the action of the spring 13 to achieve reliable locking of the rope winding state and prevent the net bag 3 from accidentally opening due to rebound. When it is necessary to release the net bag 3 and empty the debris, simply pull the top block 14 upward. The top block 14 will push the locking blocks 12 on both sides to slide outward along the guide rod 11, stretch the spring 13, and make it disengage from the slot of the winding reel 8 to release the locked state. At this time, turning the handle 9 in the opposite direction will easily release the pull rope 10, and the rope loop 4 will unfold. The bottom of the net bag 3 will naturally open, and the harvested hollow lotus grass inside can fall smoothly into the collection container or transport vehicle on the shore.

[0025] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A net-type retrieval device for cleaning up floating hollow lotus grass on the water surface, comprising a connecting rod (1), a main frame (2), and a net (3), wherein the connecting rod (1) is connected to the main frame (2), and the net (3) is installed on the main frame (2), characterized in that, It also includes a rope loop (4), a fixed pulley (5), a sliding rod (6), a threaded pin (7), a winding reel (8), a handle (9), and a pull rope (10). The net bag (3) is provided with a rope loop (4), the main frame (2) is rotatably mounted with a fixed pulley (5), the connecting rod (1) is movably provided with a threaded pin (7), the threaded pin (7) is movably connected with a sliding rod (6), the sliding rod (6) is rotatably mounted with a winding reel (8), the winding reel (8) is connected to a handle (9) on one side, and a pull rope (10) is wound on the winding reel (8). The pull rope (10) is slidably connected to the fixed pulley (5) and the rope loop (4).

2. The net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface according to claim 1, characterized in that, It also includes a guide rod (11), a locking block (12), a spring (13) and a top block (14). The guide rod (11) is installed on the sliding rod (6). The locking blocks (12) are symmetrically and slidably installed on the guide rod (11). The spring (13) is sleeved on the guide rod (11). The two ends of the spring (13) are connected to the locking blocks (12) on both sides respectively. The locking blocks (12) are movably engaged with the winding disc (8). The top block (14) is slidably installed on the sliding rod (6). The top block (14) is in movable contact with the locking blocks (12).

3. The net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface according to claim 2, characterized in that, It also includes a handle (15), and the connecting rod (1) is provided with a handle (15).

4. The net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface according to claim 3, characterized in that, It also includes an auxiliary handle (16), which is installed on the connecting rod (1).

5. A net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface according to claim 4, characterized in that, It also includes anti-slip sleeves (17), and anti-slip sleeves (17) are fitted on the handle (15) and auxiliary handle (16).

6. A net-type retrieval device for cleaning up floating hollow lotus seeds on the water surface according to claim 5, characterized in that, The connecting rod (1) is provided with several evenly spaced insertion holes that fit into the threaded pins (7).

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