TECHNICAL FIELD

The present invention relates to a floating hydrophyte planting device, and belongs to the field of hydrophyte planting technologies.

BACKGROUND

There are a lot of deep water areas, such as the lake, the reservoir, the river and the like in China. However, due to environment pollution, the environment of the water area is deteriorating day by day. So, ecological restoration of the water area is the important content of the environment protection in China. Currently, the ecological restoration of the water area such as the lake, the reservoir, the river and the like in China mainly utilizes methods of pollution source control, dredging, aeration, sedimentation, hydrophyte plant, microorganism release, hydrophyte placement, biological chain adjustment and control, etc. The most commonly used technical method to repair the polluted water body is planting the hydrophytes. The method of using the hydrophytes to repair the environment of the water area has the characteristics of wide application range, quick effect, good landscape effect and the like, but also has the problems that the hydrophytes are hard to be planted and controlled in the deep water.

Especially, to a deeper ponds or lake and a water area with poor water quality, such as a large deep lake, the sun cannot irradiate the underwater layer, and the hydrophytes cannot obtain the illumination to grow up, resulting in worse water quality and lower transparency. However, the hydrophytes floating on the water surface are directly irradiated by the sun to cause too strong illumination and too high temperature, so, the hydrophytes cannot grow up while floating on the water surface.

In conclusion, the existing submerged hydrophyte planting method generally is suitable for small and shallow water areas. Additionally, the existing submerged hydrophyte planting device has high building costs, is hardly applied to the large water area such as the lake and the like. Furthermore, with the growth of the submerged hydrophyte such as aquatic weed, its buoyancy is also increased. Therefore, it is an emergent technical problem how to regulate the depth of the aquatic weeds in the large water area.

SUMMARY

The objective of the present invention is to propose a floating hydrophyte planting device. The floating hydrophyte planting device can control the height of the hydrophyte under the water and flexibly plant the hydrophyte, which is not influenced by the water level variation and the freezing phenomenon in winter and meets the requirements of purifying the water quality and increasing the plant diversity. The floating hydrophyte planting device is ecological, environmentally friendly, simple to construct, convenient to manage and the like. Additionally, such device can effectively adjust and control the diversity and the density of plants in the water body to improve the ecological environment of the water body. Furthermore, such device can be conveniently and effectively built and maintained at low costs. Therefore, the floating hydrophyte planting device is especially applicable to planting large-area aquatic plants in deep water of the large water area.

The present invention adopts the following technical solution:

A floating hydrophyte planting device comprises a height-adjustable support1, a buoyant rope2, a planting net rope3, a stabilizing rope4and hydrophytes5. The height-adjustable support1comprises a fixed part and a movable part. The fixed part comprises columns. Each column is fixed to the ground or the water bottom through a plurality of fixed steel wires1-3. A sawtooth groove1-5is arranged on the column in the height direction and has multiple notches1-8at different heights. The movable part comprises a twisting pull rod1-1. The twisting pull rod1-1is provided with a cross locking column1-7vertical to the body of the twisting pull rod. The locking column1-7is limited in the notch1-8. After the twisting pull rod1-1is twisted, the cross locking column1-7may separate from the notch1-8; after the twisting pull rod1-1moves in the vertical direction and is twisted again, the cross locking column1-7is limited in another notch1-8. Two ends of the buoyant rope2are respectively fixedly connected with the twisting pull rods1-1. Multiple foam floating balls2-2are fixedly arranged on the buoyant rope2. Two ends of the planting net rope3are respectively movably connected with the twisting pull rods1-1. Multiple hydrophytes5are fixedly arranged on the planting net rope3. Two ends of the stabilizing rope4are respectively movably connected with the twisting pull rods1-1. Multiple weights4-3are fixedly arranged on the stabilizing rope4. Each foam floating ball2-2is connected with the planting net rope3through a tow rope2-3. The planting net rope3is connected with the weights4-3through pulling ropes4-2.

Preferably, the column is a steel tube1-2. A tube sleeve1-4fixedly sleeves the steel tube1-2. A plurality of retaining rings1-6are arranged on the surface of the tube sleeve1-4. The fixed steel wire1-3is 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.

Preferably, the twisting pull rod1-1has 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 groove1-5, the twisting pull rod 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 rope2, the planting net rope3and the stabilizing rope4.

Further, the length of the twisting pull rod1-1allows it to reach the lower end of the sawtooth groove1-5. The cross locking column1-7is arranged at the tail end of the twisting pull rod1-1and can be inserted into the sawtooth groove1-5. A control rod1-1can move up and down by pulling or pressing a cross rod of the twisting pull rod1-1to drive the fixed buoyant rope2, the planting net rope3and the stabilizing rope4to move up and down. By twisting the cross rod, the cross locking column1-7can be locked in the notch1-8of the sawtooth groove1-5. So, the twisting pull rod is fixed.

Further, the steel tube1-2is a galvanized steel tube in the range of Ø50-75 mm. One end of the steel tube is inserted into the bottom soil. The sawtooth groove1-5with the length of 1.5 m and the width from 2 cm to 3 cm is opened in the steel tube1-2under the water, and there are 3 to 5 notches1-8. The fixed steel wire1-3is a steel wire of Ø2.5 mm. One end of the steel wire is fixed to the retaining ring1-6of the tube sleeve1-4, 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 buoyant rope2is a multiple-strand polyethylene rope2-1and is fixedly provided with Ø200 foam floating balls2-2at a space in the range of 0.3-0.5 m. The planting net rope3is 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 rope3-1are respectively fixed to the interiors of the middle through holes of the two twisting pull rods1-1. The length of the planting net rope3-1is 50 m. The stabilizing rope4is a multiple-strand polyethylene rope4-1and is provided with a pulling rope4-2at a space in the range of 0.3-0.5 m. The stabilizing rope is connected with the planting net rope3-1through the pulling ropes. The stabilizing rope is also provided with weights4-3at spaces, and the weight of each weight4-3is equal to the buoyancy of each floating ball. Two ends of the stabilizing rope4are respectively fixed to the lowest ends of the twisting pull rods1-1.

Preferably, the hydrophyte5is the submerged and fibrous-root plant or the floating-leaved plant.

Further, the hydrophyte5is one or more elements selected from the group ofPotamogeton pectinatus, Hydrilla verticillata, water caltrop andMyriophyllum verticillatum.

A mounting method of the floating hydrophyte planting device comprises the steps: arranging a certain amount of the height-adjustable supports1at 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 ropes3of the height-adjustable supports1, wherein multiple height-adjustable supports1make the planting area have a net-shaped or sheet-shaped structure; when planting the hydrophyte5, 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 rod1-1and pulling it up and down to control the height of the hydrophyte under the water, thereby flexibly planting the hydrophyte.

The present invention has the following beneficial effects:

1), The floating hydrophyte planting device can control the height of the hydrophyte under the water and flexibly plant the hydrophyte, which is not influenced by the water level variation and the freezing phenomenon in winter and meets the requirements of purifying the water quality and increasing the plant diversity.

2), The floating hydrophyte planting device is ecological, environmentally friendly, simple to construct, convenient to manage and the like. Additionally, such device can effectively adjust and control the diversity and the density of plants in the water body to improve the ecological environment of the water body.

3), The floating hydrophyte planting device can be conveniently and effectively built and maintained at low costs. Therefore, the device is especially applicable to planting large-area aquatic plants in deep water of the large water area.

