CN113748837B - Submerged plant harvesting system for river channel - Google Patents

Submerged plant harvesting system for river channel Download PDF

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Publication number
CN113748837B
CN113748837B CN202111030621.0A CN202111030621A CN113748837B CN 113748837 B CN113748837 B CN 113748837B CN 202111030621 A CN202111030621 A CN 202111030621A CN 113748837 B CN113748837 B CN 113748837B
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China
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piece
cutting
submerged plant
protection
plant harvesting
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CN113748837A (en
Inventor
张振
王云仓
常素云
王松庆
王哲
刘波
罗莎
胡羽成
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TIANJIN HYDRAULIC RESEARCH INSTITUTE
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TIANJIN HYDRAULIC RESEARCH INSTITUTE
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D44/00Harvesting of underwater plants, e.g. harvesting of seaweed
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D75/00Accessories for harvesters or mowers
    • A01D75/20Devices for protecting men or animals

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Guiding Agricultural Machines (AREA)

Abstract

The invention relates to the field of submerged plant cleaning, in particular to a submerged plant harvesting system for a river channel, which comprises a submerged plant harvesting mechanism and a harvesting control system; the submerged plant harvesting mechanism comprises a cutting piece and a plurality of cutting power pieces used for driving the cutting piece to saw and cut submerged plants, wherein a connecting piece is fixedly arranged at the output end of the cutting power piece, and the other end of the connecting piece is rotationally connected with the cutting piece; the device pulls the submerged plant harvesting mechanism through two parallel ships, so that the harvesting range is wider; the submerged plants can be automatically harvested, and the working efficiency is high compared with manual cleaning; in addition, the submerged plant harvesting mechanism drives the cutting piece with the cutting end of the zigzag structure to move along the horizontal direction of the cutting piece in a curved track through the driving piece, and the submerged plant harvesting mechanism faces harder submerged plants and is separated in a sawing mode, so that the cutter is prevented from being damaged.

Description

Submerged plant harvesting system for river channel
Technical Field
The invention relates to the field of submerged plant cleaning, in particular to a submerged plant harvesting system for a river channel.
Background
Submerged plants refer to large aquatic plants with plant bodies all located below a water layer and used for camping and fixing life. The submerged plant can absorb nitrogen, phosphorus and other nutrient substances in water, and has the function of purifying water quality. The submerged plants can also reduce the suspended sediment content in the water body and improve the transparency of the water body; controlling algae growth; providing habitat for aquatic organisms and the like, and playing an important role in the ecological system of lakes and rivers.
However, submerged plants are prone to growing in large amounts in water due to eutrophication of the water, etc. After the submerged plants die and decay, nutrient salts accumulated in the body can be released, so that the effect of purifying water cannot be exerted, and pollution to water can be caused. Therefore, the submerged plants need to be harvested or salvaged regularly, so that the biomass of the submerged plants is reduced;
the common harvesting modes include manual harvesting and mechanical harvesting, wherein the manual harvesting speed is low, the input manpower and time are large, and the working efficiency is low; the existing mechanical harvesting is mainly realized by directly touching the submerged plant through the cutter and cutting off the submerged plant by using the sharp cutting edge of the cutter, but the cutting blade is extremely easy to damage when touching the relatively hard submerged plant in the harvesting mode.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a submerged plant harvesting system for a river channel to solve the problems.
A submerged plant harvesting system for a river channel comprises a submerged plant harvesting mechanism and a harvesting control system; the submerged plant harvesting mechanism comprises a cutting part and a plurality of cutting power parts for driving the cutting part to saw and cut submerged plants, wherein a connecting part is fixedly arranged at the output end of the cutting power parts, and the other end of the connecting part is rotationally connected with the cutting part.
The weeding ship comprises a plurality of weeding ships, a submerged plant harvesting mechanism is towed among the weeding ships, and two sides of the submerged plant harvesting mechanism are respectively connected with adjacent weeding ships.
The cutting range of the submerged plant harvesting mechanism is at least the distance between two weeding boats.
The cutting power piece drives the cutting piece to reciprocate along the horizontal direction of the cutting piece in a curve track, and the cutting end of the cutting piece is of a zigzag structure;
the cutting piece overcoat is equipped with protection machanism, protection machanism is including the cover dress in the guard piece outside the cutting piece, the installation end of guard piece is connected with the protection power piece that is used for driving the guard piece is along the cutting end removal of cutting piece.
The harvesting control system comprises a control chip, wherein an electric signal of the control chip is connected with a proximity switch module, a motor drive and an information acquisition module; the information acquisition module electrical signal is connected with a protection module, the protection module electrical signal is connected with a protection motor drive, a protection motor drive output end electrical signal is connected with the protection power piece, and a motor drive output end electrical signal is connected with the cutting power piece.
The proximity switch module comprises a reverse rotation trigger arranged on one side of the connecting piece and a proximity switch sensor, wherein the proximity switch sensor is arranged on the moving track of the connecting piece and is electrically connected with the motor drive.
The information acquisition module is an infrared temperature sensor, and the protection module is a singlechip.
The device also comprises a connecting plate, wherein a round rod is fixedly arranged on the connecting plate; the end part of the connecting piece is of a round sleeve structure, one end of the connecting piece is sleeved on the round rod, and the other end of the connecting piece is sleeved on the rotating shaft of the cutting power piece and is connected with the rotating shaft key of the cutting power piece.
The cutting piece is arranged at the head end part of the connecting plate, the connecting plates at the two sides of the cutting piece are provided with mounting cavities, and the protecting piece is slidably arranged in the mounting cavities;
the two sides of the protection piece are provided with a stop block which slides along a guide rod and is abutted against the inner wall of the installation cavity at the top of the guide rod, the guide rod is sleeved with a spring, one end of the spring is abutted against the guide rod, and the other end of the spring is abutted against the inner wall of the installation cavity at the bottom of the guide rod;
the protection power piece is installed the terminal portion of connecting plate, the line hole has been seted up on the protection piece, is tied to the rope on the output of protection power piece, the other end of rope is tied to on the line hole.
The weeding boat pulls the submerged plant harvesting mechanism through the lifting mechanism.
Compared with the prior art, the device has the beneficial effects that:
1. the submerged plant harvesting mechanism of the device can automatically harvest submerged plants, and has high working efficiency compared with manual cleaning; the submerged plant harvesting mechanism drives the cutting piece with the cutting end of the zigzag structure to move along the horizontal direction of the cutting piece in a curved track through the driving piece, and the submerged plant harvesting mechanism cuts the submerged plant relatively hard in a sawing way, so that the cutter is prevented from being damaged.
2. The device provided by the invention is used for dragging the submerged plant harvesting mechanism between adjacent weeding ships, and the submerged plant harvesting mechanism is pulled by two parallel ships, so that the harvesting range is larger.
3. The device is also provided with a protection mechanism, when the infrared temperature sensor senses the radiated infrared energy, signals are transmitted to the singlechip, and the singlechip controls the protection mechanism to be opened and cover the cutting piece, so that an object emitting the infrared energy is prevented from being scratched by the cutting piece.
4. The device can freely control the submerging depth of the submerged plant harvesting mechanism through the lifting mechanism, and can flexibly cope with submerged plants growing at different depths.
Drawings
Fig. 1 is a flow chart of a harvesting control system.
Fig. 2 is a schematic structural diagram of a submerged plant harvesting system for river channels.
Fig. 3 is an enlarged view of fig. 2 at a.
Fig. 4 is a schematic structural view of a submerged plant harvesting mechanism in a submerged plant harvesting system for river channels.
Fig. 5 is a schematic view of the structure of fig. 4 with the connecting plate cut away.
Fig. 6 is an enlarged view of fig. 5 at B.
In the accompanying drawings: the weeding boat 1, the submerged plant harvesting mechanism 2, the cutting part 2-1, the cutting power part 2-2, the connecting part 2-3, the reverse rotation trigger 3, the proximity switch sensor 3-1, the mounting cavity 4, the winch 5, the protection mechanism 6, the protection part 6-1, the protection power part 6-2, the stop block 6-3, the connecting plate 7, the round rod 7-1, the guide rod 7-2 and the spring 7-3.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
A submerged plant harvesting system for a river channel comprises a submerged plant harvesting mechanism 2 and a harvesting control system;
the submerged plant harvesting mechanism 2 comprises a cutting part 2-1 and a plurality of cutting power parts 2-2, wherein a connecting part 2-3 is fixedly arranged at the output end of the cutting power parts 2-2, the other end of the connecting part 2-3 is rotationally connected with the cutting part 2-1, in the embodiment, the cutting power parts 2-2 adopt synchronous rotating motors, two cutting power parts are arranged, when the cutting power parts 2-2 rotate, the connecting part 2-3 is driven to rotate, and the connecting part of the connecting part 2-3 and the cutting part 2-1 are rotationally connected, so that sufficient rotating space is provided; the cutting power piece 2-2 drives the cutting piece 2-1 to reciprocate along a curve track in the horizontal direction, and the cutting end of the cutting piece 2-1 is of a zigzag structure;
further, considering that the cutting member 2-1 may hit living things or diving personnel of the aquatic traveling during the moving process, at this time, even if the cutting power member 2-2 is closed quickly, the cutting member 2-1 will not stop swinging immediately under the action of inertia, and the cutting end of the cutting member 2-1 is sharp, and the living things or diving personnel of the aquatic traveling may be injured if they do not hit with care, the device is provided with a protection mechanism 6 outside the cutting member 2-1, the protection mechanism 6 comprises a protection member 6-1 sleeved outside the cutting member 2-1, and the mounting end of the protection member 6-1 is connected with a protection power member 6-2 for driving the protection member 6-1 to move along the cutting end of the cutting member 2-1;
the harvesting control system comprises a control chip, wherein the control chip is electrically connected with a proximity switch module, a motor drive, an information acquisition module and a battery module; the information acquisition module is electrically connected with a protection module, the protection module is electrically connected with a protection motor drive, the electric signal of the output end of the protection motor drive is connected with the protection power piece 6-2, and the electric signal of the output end of the motor drive is connected with the cutting power piece 2-2;
specifically, the information acquisition module is an infrared temperature sensor, the infrared temperature sensor is arranged on the connecting plate 7, and it is to be noted that in nature, when the temperature of an object is higher than absolute zero, electromagnetic waves are continuously radiated to the periphery due to the existence of thermal motion in the object, wherein the infrared temperature sensor comprises infrared rays with wave bands of 0.75-100 μm, and the infrared temperature sensor is manufactured by utilizing the principle;
specifically, the protection module is a singlechip;
specifically, the proximity switch module includes a reverse rotation trigger 3 installed at one side of the connecting piece 2-3, and further includes a proximity switch sensor 3-1, where the proximity switch sensor 3-1 is installed on a moving track of the connecting piece 2-3, in this embodiment, two proximity switch sensors 3-1 are provided, and the proximity switch sensor 3-1 is electrically connected with the motor driver; after the first proximity switch sensor 3-1 senses a signal of reverse rotation sent by the reverse rotation trigger 3 on the connecting piece 2-3, the first proximity switch sensor 3-1 transmits the received signal of reverse rotation to a motor driver, and the motor driver controls the cutting power piece 2-2 to reversely rotate; when the second proximity switch sensor 3-1 senses a signal of reverse rotation sent by the reverse rotation trigger 3 on the connecting piece 2-3, the second proximity switch sensor 3-1 transmits the received signal of reverse rotation to a motor driver, and the motor driver controls the cutting power piece 2-2 to reversely rotate again, namely the cutting power piece 2-2 drives the cutting piece 2-1 to reciprocate along a curved track, so that the cutting piece 2-1 forms a cutting track of swinging sawing to cut submerged plants; it should be noted that the proximity switch sensor 3-1 and the reverse rotation trigger 3 are both existing products;
when the cutting piece 2-1 is required to work, the control chip controls the cutting power piece 2-2 to start to operate through motor driving, the proximity switch module transmits sensed information to the control chip in the rotating process of the cutting power piece 2-2, and the control chip controls the cutting power piece 2-2 to reversely move through motor driving;
when the information acquisition module, namely the infrared temperature sensor senses infrared energy radiated by a human body or an animal, on one hand, a signal is transmitted to the protection module, namely the singlechip, and the singlechip drives and controls the protection power piece 6-2 to be started through the protection motor; on the other hand, the signal is transmitted to the control chip, and the control chip controls the cutting power piece 2-2 to be closed through motor driving.
Further, the weeding system further comprises a plurality of parallel weeding ships 1, wherein the submerged plant harvesting mechanisms 2 are dragged between adjacent weeding ships 1, and two sides of each submerged plant harvesting mechanism 2 are respectively and flexibly connected with the adjacent weeding ships 1; the cutting range of the submerged plant harvesting mechanism 2 is at least the distance between two weeding boats.
In the embodiment, two weeding boats 1 which advance synchronously are adopted, when the weeding boat 1 moves, the submerged plant harvesting mechanism 2 is pulled to move, the transverse distance between the two boats is the harvesting range of the harvesting mechanism 2, and after the two boats travel, the submerged plants in the water areas below the two boats can be harvested, so that the harvesting range is larger, and the harvesting efficiency is higher;
further, a remote control module is further arranged on the weeding boat 1, the battery module is arranged on the submerged plant harvesting mechanism 2, the battery module is electrically connected with a receiving module, the remote control module is started by a worker, a starting signal is transmitted to the receiving module by the remote control module, the receiving module controls the battery module to be started, and the battery module supplies power for the control chip, the proximity switch module, the information acquisition module, the cutting power piece 2-2 and the protection power piece 6-2.
The device comprises a connecting plate 7, and is characterized by further comprising a round rod 7-1 fixedly arranged on the connecting plate 7, wherein threads are arranged on the surface of the round rod 7-1; the end part of the connecting piece 2-3 is of a round sleeve structure, one end of the connecting piece is sleeved on the round rod 7-1, and is in threaded connection with the round rod by using a nut, so that the connecting piece 2-3 is prevented from falling off from the round rod 7-1 after being stressed, and the other end of the connecting piece 2-3 is sleeved on a rotating shaft of the cutting power piece 2-2 and is in key connection with a rotating shaft of the cutting power piece 2-2;
specifically, the cutting member 2-1 is mounted at the head end part of the connecting plate 7, the connecting plates 7 on two sides of the cutting member 2-1 are provided with mounting cavities 4, and the protecting member 6-1 is slidably mounted in the mounting cavities 4;
specifically, two sides of the guard piece 6-1 are provided with a stop block 6-3, the stop block 6-3 slides along a guide rod 7-2 and is in contact with the inner wall of the installation cavity 4 at the top of the guide rod 7-2, the guide rod 7-2 is sleeved with a spring 7-3, one end of the spring 7-3 is in contact with the guide rod 7-2, and the other end of the spring 7-3 is in contact with the inner wall of the installation cavity 4 at the bottom of the guide rod 7-2;
specifically, the protective power piece 6-2 is installed at the tail end of the connecting plate 7, a wire hole is formed in the protective piece 6-1, a steel rope is tied to the output end of the protective power piece 6-2, and the other end of the steel rope is tied to the wire hole;
in this embodiment, the protection power component 6-2 adopts an electric cylinder, under normal conditions, the output end of the electric cylinder stretches out, the protection component 6-1 is pulled by a steel rope, the protection component 6-1 slides along the guide rod 7-2 and compresses the spring 7-3, so that the protection component 6-1 is contracted in the installation cavity 4, when the information acquisition module, namely the infrared temperature sensor, senses infrared energy radiated by a human body or an animal, a signal is transmitted to the protection module, namely the singlechip, the singlechip drives and controls the protection power component 6-2 to open through the protection motor, the output end of the electric cylinder is retracted, the steel rope is free from a tensioning state, the spring 7-3 is expanded to eject the protection component 6-1 from the installation cavity 4, and the protection component 6-1 covers the cutting component 2-1; the length of the guard member 6-1 is enough to cover the cutting end of the cutting member 2-1 completely, in this embodiment, two guard members 6-1 are provided, and the surface is coated with an anti-collision and wear-resistant rubber layer.
The weeding ship 1 pulls the submerged plant harvesting mechanism 2 through a lifting mechanism, and particularly, the lifting mechanism adopts a winch 5; the other end of the rope on the winch 5 is connected with one side of the submerged plant harvesting mechanism 2; the winch 5 can freely control the submerging depth of the submerged plant harvesting mechanism, and can flexibly cope with submerged plants growing in different depths.
Working principle:
when the device is used, the submerged plant harvesting mechanisms 2 with two sides respectively in soft connection with the adjacent weeding boats 1 are put into water, the submerged plant harvesting mechanisms 2 sink under the action of dead weight, the weeding boats 1 drive the submerged plant harvesting mechanisms 2 to move in the water, when the submerged plant harvesting mechanisms enter a submerged plant area, the control chip controls the cutting power piece 2-2 to start to operate through motor driving, when the cutting power piece 2-2 rotates, the connecting piece 2-3 is driven to rotate, the connecting part of the connecting piece 2-3 and the cutting piece 2-1 is rotationally connected, so that the submerged plant harvesting mechanisms have sufficient rotation space,
in the rotating process of the cutting power piece 2-2, after the first proximity switch sensor 3-1 senses a signal of reverse rotation sent by the reverse rotation trigger 3 on the connecting piece 2-3, the first proximity switch sensor 3-1 transmits the received signal of reverse rotation to a motor drive, and the motor drive controls the cutting power piece 2-2 to reversely rotate; when the second proximity switch sensor 3-1 senses a signal of reverse rotation sent by the reverse rotation trigger 3 on the connecting piece 2-3, the second proximity switch sensor 3-1 transmits the received signal of reverse rotation to a motor driver, and the motor driver controls the cutting power piece 2-2 to reversely rotate again, namely the cutting power piece 2-2 drives the cutting piece 2-1 to reciprocate along a curved track, so that the cutting piece 2-1 forms a cutting track of swinging sawing to cut submerged plants;
the protection power piece 6-2 adopts an electric cylinder, under normal conditions, the output end of the electric cylinder stretches out, the protection piece 6-1 is pulled by a steel rope, the protection piece 6-1 slides along the guide rod 7-2 and compresses the spring 7-3, so that the protection piece 6-1 is contracted in the installation cavity 4, when the information acquisition module, namely the infrared temperature sensor, senses infrared energy radiated by a human body or an animal, a signal is transmitted to the protection module, namely the singlechip, the singlechip drives and controls the protection power piece 6-2 to open through the protection motor, the output end of the electric cylinder is retracted, the steel rope is in a tensioning state, the spring 7-3 is expanded to eject the protection piece 6-1 out of the installation cavity 4, and the protection piece 6-1 is covered on the cutting piece 2-1; the length of the guard 6-1 is such that it completely covers the cut end of the cutter 2-1.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.

Claims (7)

1. A submerged plant harvesting system for a river course, which is characterized in that; comprises a submerged plant harvesting mechanism (2) and a harvesting control system; the submerged plant harvesting mechanism (2) comprises a cutting piece (2-1) and a plurality of cutting power pieces (2-2) for driving the cutting piece (2-1) to saw and cut submerged plants, wherein the cutting power pieces (2-2) drive the cutting piece (2-1) to reciprocate along the horizontal direction of the cutting piece in a curve track, and the cutting end of the cutting piece (2-1) is of a zigzag structure; the output end of the cutting power piece (2-2) is fixedly provided with a connecting piece (2-3), and the other end of the connecting piece (2-3) is rotationally connected with the cutting piece (2-1);
the harvesting control system comprises a control chip, wherein an electric signal of the control chip is connected with a proximity switch module, a motor drive and an information acquisition module; the information acquisition module is electrically connected with a protection module, the protection module is electrically connected with a protection motor drive, the electric signal of the output end of the protection motor drive is connected with a protection power piece (6-2), and the electric signal of the output end of the motor drive is connected with the cutting power piece (2-2);
the proximity switch module comprises a reverse rotation trigger (3) arranged on one side of the connecting piece (2-3), and further comprises a proximity switch inductor (3-1), wherein the proximity switch inductor (3-1) is arranged on a moving track of the connecting piece (2-3), the proximity switch inductor (3-1) is electrically connected with the motor in a driving way, the information acquisition module is an infrared temperature sensor, and further comprises a connecting plate (7), and a round rod (7-1) is fixedly arranged on the connecting plate (7); the end part of the connecting piece (2-3) is of a round sleeve structure, one end of the connecting piece is sleeved on the round rod (7-1), and the other end of the connecting piece is sleeved on the rotating shaft of the cutting power piece (2-2) and is connected with the rotating shaft key of the cutting power piece (2-2);
in the rotating process of the cutting power piece (2-2), after a first proximity switch sensor (3-1) senses a signal of reverse rotation sent by a reverse rotation trigger (3) on the connecting piece (2-3), the first proximity switch sensor (3-1) transmits the received signal of reverse rotation to a motor driver, and the motor driver controls the cutting power piece (2-2) to reversely rotate; when the second proximity switch sensor (3-1) senses a signal of reverse rotation sent by the reverse rotation trigger (3) on the connecting piece (2-3), the second proximity switch sensor (3-1) transmits the received signal of reverse rotation to the motor drive, the motor drive controls the cutting power piece (2-2) to reversely rotate again, and the cutting power piece (2-2) drives the cutting piece (2-1) to reciprocate along a curved track, so that the cutting piece (2-1) forms a cutting track of swing sawing to cut submerged plants.
2. A submerged plant harvesting system for river courses according to claim 1, wherein; the weeding device further comprises a plurality of weeding boats (1), wherein the submerged plant harvesting mechanisms (2) are dragged among the weeding boats (1), and two sides of each submerged plant harvesting mechanism (2) are respectively connected with adjacent weeding boats (1).
3. A submerged plant harvesting system for river courses according to claim 2 wherein; the cutting range of the submerged plant harvesting mechanism (2) is at least the distance between two weeding boats.
4. A submerged plant harvesting system for river courses according to claim 3, wherein;
the cutting part (2-1) is sleeved with a protection mechanism (6), the protection mechanism (6) comprises a protection part (6-1) sleeved on the outer side of the cutting part (2-1), and the installation end of the protection part (6-1) is connected with a protection power part (6-2) for driving the protection part (6-1) to move along the cutting end of the cutting part (2-1).
5. The submerged plant harvesting system for river courses of claim 4, wherein; the protection module is a singlechip.
6. A submerged plant harvesting system for river courses according to claim 5, wherein; the cutting piece (2-1) is arranged at the head end part of the connecting plate (7), the connecting plates (7) at the two sides of the cutting piece (2-1) are provided with mounting cavities (4), and the protective piece (6-1) is slidably arranged in the mounting cavities (4);
the two sides of the protection piece (6-1) are provided with a stop block (6-3), the stop block (6-3) slides along a guide rod (7-2) and is in conflict with the inner wall of the installation cavity (4) at the top of the guide rod (7-2), the guide rod (7-2) is sleeved with a spring (7-3), one end of the spring (7-3) is in conflict with the guide rod (7-2), and the other end of the spring is in conflict with the inner wall of the installation cavity (4) at the bottom of the guide rod (7-2);
the protection power piece (6-2) is arranged at the tail end of the connecting plate (7), a wire hole is formed in the protection piece (6-1), a steel rope is tied to the output end of the protection power piece (6-2), and the other end of the steel rope is tied to the wire hole.
7. A submerged plant harvesting system for river courses according to claim 6, wherein; the weeding ship (1) pulls the submerged plant harvesting mechanism (2) through the lifting mechanism.
CN202111030621.0A 2021-09-03 2021-09-03 Submerged plant harvesting system for river channel Active CN113748837B (en)

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