# US 11,440,628 B2 · Floating hydrophyte planting device

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- Number: US 11,440,628 B2
- Document ID: US11440628B2
- Status: Granted
- Kind: B2
- Application number: 16/884,091
- Filed: 2020-05-27
- Published: 2021-02-18
- Granted: 2022-09-13
- Earliest claimed: 2019-08-15
- Assignees: Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences
- Applicants: Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences
- Inventors: Xingguo Liu; Xiaolong Chen; Hao Zhu; Zixin Gao; Keju Li
- Web page: https://patentgrep.com/patent/US11440628B2

## CPC

- B63B 35/44: Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices {(construction methods for floating offshore platforms B63B75/00)}
- A01G 33/00: Cultivation of seaweed {or algae}
- E02F 9/06: Floating substructures as supports {(floating installations with arrangements acting by a sucking or forcing effect E02F3/8833)}
- B63B 2035/4493: {Floating structures supporting vegetation, such as trees, reeds, crops, plants, or the like, e.g. flexible structures}
- C02F 3/32: characterised by the animals or plants used, e.g. algae
- Y02W 10/10: Biological treatment of water, waste water, or sewage
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00)
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

The present invention relates to a floating hydrophyte planting device, comprising a height-adjustable support, a buoyant rope, a planting net rope, a stabilizing rope and hydrophytes. The height-adjustable support comprises a fixed part and a movable part. The fixed part comprises columns and inclined stayed and fixed steel wires. A sawtooth groove is arranged on one side face of the column in the height direction and has multiple notches at different heights. The movable part comprises a twisting pull rod. The twisting pull rod is provided with a cross locking column vertical to the body of the twisting pull rod. The locking column is limited in the notch. After the twisting pull rod is twisted, the cross locking column may separate from the notch; after the twisting pull rod moves in the vertical direction and is twisted again, the cross locking column is limited in another notch.

## Claims

### Claim 1

A floating hydrophyte planting device,
comprising a height-adjustable support (1), a buoyant rope (2), a planting net rope (3), a stabilizing rope (4) and hydrophytes (5), wherein
the height-adjustable support (1) comprises a fixed part and a movable part; the fixed part comprises columns and stayed and fixed steel wires (1-3) fixed to the ground or the water bottom; a sawtooth groove (1-5) is arranged on the column in the height direction and has multiple notches (1-8) at different heights; the movable part comprises a twisting pull rod (1-1); the twisting pull rod (1-1) is provided with a cross locking column (1-7) vertical to the body of the twisting pull rod; the locking column (1-7) is limited in the notch (1-8); after the twisting pull rod (1-1) is twisted, the cross locking column (1-7) may separate from the notch (1-8); after the twisting pull rod (1-1) moves in the vertical direction and is twisted again, the cross locking column (1-7) is limited in another notch (1-8);
two ends of the buoyant rope (2) are respectively fixedly connected with the twisting pull rods (1-1); multiple foam floating balls (2-2) are fixedly arranged on the buoyant rope (2);
two ends of the planting net rope (3) are respectively movably connected with the twisting pull rods (1-1); multiple hydrophytes (5) are fixedly arranged on the planting net rope (3);
two ends of the stabilizing rope (4) are respectively movably connected with the twisting pull rods (1-1); multiple weights (4-3) are fixedly arranged on the stabilizing rope (4);
each foam floating ball (2-2) is connected with the planting net rope (3) through a tow rope (2-3); the planting net rope (3) is connected with the weights (4-3) through pulling ropes (4-2).

### Claim 2 (depends on 1)

The floating hydrophyte planting device according to claim 1, wherein the column is a steel tube (1-2), a tube sleeve (1-4) fixedly sleeves the steel tube (1-2), and a plurality of retaining rings (1-6) are arranged on the surface of the tube sleeve (1-4); the fixed steel wire (1-3) is arranged in an incline manner; one end of the fixed steel wire is fixed to the retaining ring, and the other end is fixed to the bottom of a water body.

### Claim 3 (depends on 2)

The floating hydrophyte planting device according to claim 2, wherein
the steel tube (1-2) is a galvanized steel tube in the range of 050-75 mm; one end of the steel tube is inserted into the bottom soil; the sawtooth groove (1-5) with the length of 1.5 m and the width from 2 cm to 3 cm is opened in the steel tube (1-2) under the water, and there are 3 to 5 notches (1-8);
the fixed steel wire (1-3) is a steel wire of 02.5 mm; one end of the steel wire is fixed to the retaining ring (1-6) of the tube sleeve (1-4), and the other end is inserted into the bottom soil, wherein an angle formed by the steel wire and the steel tube is not less than 30 degrees;
the sawtooth groove (1-5) has the length from 1.0 m to 1.5 m and the width from 1.0 cm to 1.5 cm, and its top end is slightly higher than the water surface;
the twisting pull rod (1-1) is a solid steel chisel of 01.0 cm;
the buoyant rope (2) is a multiple-strand polyethylene rope (2-1) and is fixedly provided with Ø200 foam floating balls (2-2) at a space in the range of 0.3-0.5 m;
the planting net rope (3) is formed by winding a polyethylene net with the mesh in the range of 1-2 cm and is tightly tied up by using straps at a space in the range of 30-40 cm; two ends of the planting net rope (3-1) are respectively fixed to the interiors of the middle through holes of the two twisting pull rods (1-1); the length of the planting net rope (3-1) is 50 m;
the stabilizing rope (4) is a multiple-strand polyethylene rope (4-1) and is provided with a pulling rope (4-2) at a space in the range of 0.3-0.5 m; the stabilizing rope is connected with the planting net rope (3-1) through the pulling ropes; the stabilizing rope is also provided with weights (4-3) at spaces, and the weight of each weight (4-3) is equal to the buoyancy of each floating ball; two ends of the stabilizing rope (4) are respectively fixed to the lowest ends of the twisting pull rods (1-1).

### Claim 4 (depends on 1)

The floating hydrophyte planting device according to claim 1, wherein the twisting pull rod (1-1) has a structure of a T-shaped solid steel rod; the upper end of the twisting pull rod is a T-shaped cross twisting pull rod; corresponding to the sawtooth groove (1-5), the twisting pull rod (1-1) is respectively provided with three through holes, namely an upper through hole, a middle through hole and a lower through hole; the three through holes are used for fixing the buoyant rope (2), the planting net rope (3) and the stabilizing rope (4).

### Claim 5 (depends on 4)

The floating hydrophyte planting device according to claim 4, wherein the length of the twisting pull rod (1-1) allows it to reach the lower end of the sawtooth groove (1-5); the cross locking column (1-7) is arranged at the tail end of the twisting pull rod (1-1) and can be inserted into the sawtooth groove (1-5); a control rod (1-1) can move up and down by pulling or pressing a cross rod of the twisting pull rod (1-1) to drive the fixed buoyant rope (2), the planting net rope (3) and the stabilizing rope (4) to move up and down; by twisting the cross rod, the cross locking column (1-7) can be locked in the notch (1-8) of the sawtooth groove (1-5); so the twisting pull rod is fixed.

### Claim 6 (depends on 1)

The floating hydrophyte planting device according to claim 1, wherein the hydrophyte (5) is the submerged and fibrous-root plant or the floating-leaved plant.

### Claim 7 (depends on 6)

The floating hydrophyte planting device according to claim 6, wherein the hydrophyte (5) is one or more elements selected from the group of Potamogeton pectinatus, Hydrilla verticillata, water caltrop and Myriophyllum verticillatum.

### Claim 8 (depends on 1)

A mounting method of the floating hydrophyte planting device according to claim 1, comprises the steps: arranging a certain amount of the height-adjustable supports (1) at an interval according to the area of a water body, wherein the total area of the floating hydrophyte planting devices is 10% to 20% of the total area of the water body; mounting two steel wires by the angle of 120 degrees on the opposite side of every two adjacent planting ropes (3) of the height-adjustable supports (1), wherein multiple height-adjustable supports (1) make the planting area have a net-shaped or sheet-shaped structure; when planting the hydrophyte (5), inserting the hydrophyte into the planting net rope according to the plant spacing from 0.3 m to 0.5 m, then placing the hydrophyte under the water; in use, according to the water surface variation and the size of the plant, twisting the twisting pull rod (1-1) and pulling it up and down to control the height of the hydrophyte under the water, thereby flexibly planting the hydrophyte.