Mobile sewage purification floating island device

Abstract

The present invention relates to a mobile sewage purification floating island device. It comprises a floating island, a drive device, and a fixing device. The drive device comprises four drive units, each comprising a drive motor and its transmission assembly, a drive shaft, and a propeller. The fixing device comprises a fixed anchor, a chain connected to each fixed anchor, a roller device mounted on the floating island and connected to each chain, and one or more chain clamping devices disposed beside the roller device for clamping or loosening the corresponding chain wound around the roller device. The present invention can be placed in a pond, lake, or stream to plant aquatic plants that can purify sewage, thereby purifying the water body. Furthermore, the device is provided with a drive device on the floating island that can drive the floating island to move, and can be fixed by the fixed anchor of the fixing device. This effectively solves the problem of poor mobility of the floating island, and the floating island can be moved to different locations in the water body for sewage purification as needed, thus having the advantage of a high degree of automation.

Description

Technical Field

[0001] The present invention relates to the field of ecological floating islands, in particular to a mobile sewage purification floating island device which can be placed in ponds, lakes or rivers and used to plant aquatic plants that can purify sewage. Background Art

[0002] Water pollution is a serious problem. Ponds, lakes, and rivers are everywhere, and pollution to varying degrees is common. Furthermore, it is difficult to control. Consequently, an ecological floating island for sewage treatment has emerged. Secondly, by planting various aquatic plants on the ecological floating island, they can absorb various impurities in the water, thus purifying the water and beautifying the environment. However, existing ecological floating islands have many problems or drawbacks:

[0003] First, most existing artificial floating islands are fixed, inserted into the water by fixing devices, resulting in poor mobility and high labor and material consumption for subsequent relocation. Moreover, because they cannot be moved, they cannot be moved to different locations in the water body for sewage purification as needed.

[0004] Second, the entire floating island device is large and fixed in one piece, making it difficult to transport and less flexible.

[0005] Third, the planting supports used to grow aquatic plants on the ecological floating islands are less stable, and the aquatic plants are prone to falling over and are not strong enough.

[0006] Fourth, the entire device is difficult to dismantle, and overall movement can easily damage the water body, which may cause secondary damage to the water body. Summary of the Invention

[0007] The present invention aims to overcome the above shortcomings and provide a mobile sewage purification floating island device. This device can not only be placed in a pond, lake or stream to grow aquatic plants that can purify sewage, thereby purifying the water body, but also has a driving device on the floating island that can drive the floating island to move, and can be fixed by a fixed anchor of the fixing device. This can effectively solve the problem of poor mobility of the floating island. The floating island can be moved to different locations in the water body for sewage purification as needed, and has the advantage of a high degree of automation.

[0008] The present invention is achieved through the following technical solutions: A mobile sewage purification floating island device, characterized by comprising a floating island for planting aquatic plants in water, a driving device for driving the floating island to move in the water, and a fixing device for fixing the position of the floating island in the water;

[0009] The drive device includes four groups of drive units located at four positions on the bottom of the floating island, one at each of the two lateral ends and the other at each of the two longitudinal ends. Each group of drive units includes a drive motor and its transmission assembly fixedly mounted on the floating island, a drive shaft connected to a power output shaft of the drive motor and its transmission assembly, and a propeller coaxially fixedly mounted on the outer periphery of the drive shaft. The drive shaft and propeller are located below the floating island. The drive shafts of the two drive units located at the two lateral ends extend in the transverse direction and have coaxial axes, while the drive shafts of the two drive units located at the two longitudinal ends extend in the longitudinal direction and have coaxial axes.

[0010] The fixing device includes one or more fixing anchors arranged under the floating island for fixing the floating island, chains connected to each fixing anchor respectively, a roller device installed on the floating island and connected to each chain for winding, tightening or loosening each chain to control the lifting and lowering of the corresponding fixing anchor, and one or more chain clamping devices arranged beside the roller device for clamping or loosening the corresponding chain wound on the roller device.

[0011] Preferably, the roller device includes a roller frame fixedly mounted on the floating island, a roller shaft rotatably connected to the roller frame and extending in the horizontal direction, roller bodies fixedly mounted on the roller shaft and corresponding in number to the fixed anchors, and a roller motor and a transmission assembly mounted on the roller frame and connected to one axial end of the roller shaft for driving the roller shaft to rotate, one end of the chain is fixedly connected to and wound around the roller body corresponding to the chain in the roller device, and the other end is connected to the fixed anchor;

[0012] Each chain assembly consists of a chain frame positioned adjacent to the corresponding roller; a chain arm rotatably connected to the chain frame at one end via a shaft positioned horizontally and parallel to the roller axis; a latch fixed to the bottom of the other end of the chain arm; and a chain drive mechanism connected to the shaft for driving the chain arm to swing up and down about the shaft. The other end of the chain arm is positioned above the corresponding roller. During downward movement, the latch on the chain arm engages with an internal through-hole in a link of the chain wound around the corresponding roller. Each component can be protected with a waterproof cover to prevent moisture from damaging the electrical equipment.

[0013] In order to facilitate the installation of the floating island and the fixation of the aquatic plants, the floating island includes a plurality of floating plates that can float on the water surface, fixed connectors for connecting the floating plates to each other, and planting baskets installed in each floating plate for planting aquatic plants.

[0014] The floating plate includes a plate body, wherein the middle portion of the plate body is provided with one or more planting mounting holes extending in the vertical direction and passing through the upper and lower planes of the plate body for mounting a planting basket, the planting basket including a basket body capable of being mounted in the planting mounting hole and having a bottom capable of passing through the planting mounting hole and extending to the bottom of the plate body, and an annular flange fixedly arranged on the outer periphery of the upper end of the basket body and extending outward in a direction away from the vertical center line of the planting mounting hole, the bottom of the annular flange of the planting basket overlaps the upper outer peripheral edge of the planting mounting hole of the plate body, and the middle portion of the basket body is provided with a planting groove extending in the vertical direction and having an open top and a semi-closed bottom;

[0015] The bottom of the planting groove is also provided with an elastic ring body extending upward from the bottom, the middle part of the elastic ring body is a hollow hole opening upward and downward, and the ring body diameter of the elastic ring body in the middle part in the vertical direction is smaller than the ring body diameter at the upper and lower end parts, and the diameter of the upper end ring wall and the lower end ring wall of the elastic ring body gradually tightens in the process of extending toward the middle position, and the outer edge of the upper end of the elastic ring body is also provided with a second annular flange extending outward in the direction away from the axis, and the planting basket also includes one or more sets of vertically penetrated elastic ring bodies. A bolt and nut assembly is provided between the second annular flange of the ring body and the bottom of the planting groove for adjusting the height of the elastic ring body in the vertical direction. The aquatic plant is vertically placed in the hollow hole of the elastic ring body of the planting basket, and when the nut of the bolt and nut assembly is tightened to move the second annular flange at the upper end of the elastic ring body downward, the middle tightening position of the elastic ring body can shrink and tightly cover the lower part of the aquatic plant and fix it, and the bottom of the planting groove is provided with a plurality of hollow through holes extending downward and penetrating the bottom of the groove, and the roots of the aquatic plant can extend into the water below the basket body through the hollow through holes.

[0016] Preferably, the elastic ring body is provided with a plurality of separation grooves which are evenly distributed around its circumference and extend upward from a position near the bottom of the ring body to a position near the top of the ring body and pass through the inner and outer circumferential walls of the elastic ring body for facilitating the elastic ring body to be tightened toward the center of the elastic ring body or to expand outward.

[0017] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut.

[0018] In order to prevent the planting basket from falling out upward and to limit the planting rotation, the outer peripheral wall of the basket body is further provided with a circle of limiting flanges extending and protruding in a direction away from the axis, and the inner peripheral wall of the planting mounting hole is provided with a circle of annular grooves recessed in a direction away from the axis and corresponding to the limiting flanges. When the basket body is installed into the planting mounting hole from top to bottom, the limiting flanges of the basket body can be installed and engaged in the annular grooves, thereby preventing the basket body from falling out of the planting mounting hole in the vertical direction.

[0019] The bottom of the annular flange is also provided with one or more positioning columns arranged at intervals along the same circumferential direction around the center of the annular flange and extending downward. The plate body is provided with positioning grooves recessed downward in the vertical direction at positions corresponding to each positioning column. The positioning columns of the annular flange are installed in the positioning grooves of the plate body to prevent the planting basket from rotating around the central axis of the planting mounting hole.

[0020] In order to facilitate the supply of oxygen to aquatic plants, the mobile sewage purification floating island device also includes an aeration device installed on the floating island, and the aeration device includes a blower fixedly installed on the floating island, and one or more oxygen supply pipes connected to the air outlet of the blower and extending and arranged at different positions on the bottom of the floating island.

[0021] Preferably, the planting installation hole is in the shape of a truncated cone with a larger upper portion and a smaller lower portion, and the shape and size of the outer peripheral wall of the installation portion of the basket body used to cooperate with the planting installation hole corresponds to the shape and size of the planting installation hole.

[0022] In order to improve the purification efficiency, the aquatic plant is royal bamboo grass.

[0023] The mobile sewage purification floating island device can use a solar energy device installed on the floating island to power various motor equipment and components.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention discloses a mobile sewage purification floating island device. This device can be placed in ponds, lakes, or streams to grow aquatic plants that can purify sewage, thereby purifying the water. Furthermore, the device includes a drive mechanism on the floating island that can move the island and secure it with anchors. This effectively addresses the issue of the floating island's poor mobility and allows it to be moved to different locations in the water for sewage purification as needed, offering the advantage of a high degree of automation.

[0026] 2. The present invention provides a mobile sewage purification floating island device, which uses multiple independent floating plates and fixed connectors for splicing, thereby solving the problems of difficult transportation and difficult installation and disassembly. In addition, an elastic ring is provided in the planting basket, and the tightness of the elastic ring can be adjusted by adjusting the bolt and nut assembly, thereby covering the lower part of the aquatic plants to ensure the stability of the aquatic plants.

[0027] 3. The present invention provides a mobile sewage purification floating island device, which has four connecting seats arranged on the plate body. When two adjacent plate bodies are connected, the corresponding two connecting seats are matched and connected, and the two matching connecting seats are fixed by the T-slot of the push rod member, thereby ensuring the fixed connection between the two plate bodies, thereby improving the installation efficiency.

[0028] 4. In order to further ensure that the push rod does not slip, a screw is provided between the connecting portion of the push rod and the connecting seat to further fix the two.

[0029] 5. The present invention provides a mobile sewage purification floating island device, which is further provided with a limiting flange on the basket body of the planting basket. The limiting flange can be matched and connected with the annular groove in the planting installation hole to prevent the planting basket from falling out upward. The device is also provided with a positioning column at the bottom of the annular flange of the planting basket, and the positioning column cooperates with the positioning groove on the floating plate to prevent the planting basket from rotating around the axis.

[0030] 7. The present invention provides a mobile sewage purification floating island device. The aquatic plants in the device can be royal bamboo grass. Royal bamboo grass has large plants and high purification efficiency, which can further increase added value.

[0031] 8. The present invention provides a mobile sewage purification floating island device, which is also provided with an aeration device that can forcibly transfer oxygen in the air into the liquid, so that sufficient dissolved oxygen is obtained in the liquid to ensure the growth of aquatic plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The structure of the mobile sewage purification floating island device of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 2 The structure of the mobile sewage purification floating island device of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 3 The structure of the mobile sewage purification floating island device of the present invention is shown in FIG. Figure 3 ;

[0035] Figure 4 This is a schematic diagram of the use state of the chain device in the mobile sewage purification floating island device of the present invention;

[0036] Figure 5 Schematic diagram of the middle floating island structure of the mobile sewage purification floating island device of the present invention Figure 1 ;

[0037] Figure 6 Schematic diagram of the structure of the planting basket in the mobile sewage purification floating island device of the present invention Figure 1 ;

[0038] Figure 7 Schematic diagram of the structure of the planting basket in the mobile sewage purification floating island device of the present invention Figure 2 ;

[0039] Figure 8 A top view of a planting basket in the mobile sewage purification floating island device of the present invention;

[0040] Figure 9 for Figure 8 Cross-sectional view of AA;

[0041] Figure 10 This is a schematic structural diagram of the elastic ring body in the mobile sewage purification floating island device of the present invention;

[0042] Figure 11 Schematic diagram of the middle floating island structure of the mobile sewage purification floating island device of the present invention Figure 2 ;

[0043] Figure 12 for Figure 11 Cross-sectional view of the middle BB;

[0044] Figure 13 This is a schematic structural diagram of a push rod member in a mobile sewage purification floating island device of the present invention;

[0045] Figure 14 for Figure 11 Cross-sectional view of CC.

[0046] Explanation of the reference numbers: 1-floating plate, 11-plate body, 12-planting mounting hole, 121-annular groove, 13-connecting seat, 131-seat body, 132-connecting part, 14-positioning groove, 2-fixed connecting piece, 21-push rod, 211-T-slot, 22-screw, 3-planting basket, 31-basket body, 311-limiting flange, 32-annular flange, 321-positioning column, 33-planting groove, 34-elastic ring body, 341- Second annular flange, 35-screw-nut assembly, 36-hollow through-hole, 4-floating island, 5-drive device, 51-drive motor, 52-drive shaft, 53-propeller, 6-fixing device, 61-fixed anchor, 62-chain, 63-roller device, 631-roller frame, 632-roller shaft, 633-roller body, 634-roller motor, 64-chain device, 641-chain frame, 642-rotating shaft, 643-chain arm. 644-latch, 645-chain drive device, 7-aeration device, 71-blower, 72-transport pipe, 8-solar device, a-aquatic plants. DETAILED DESCRIPTION

[0047] The present invention is described in detail below with reference to the accompanying drawings:

[0048] like Figure 1-14 As shown, the present invention is implemented by the following technical solutions: a mobile sewage purification floating island device, characterized by comprising a floating island 4 for planting aquatic plants a in water, a driving device 5 for driving the floating island 4 to move in the water, and a fixing device 6 for fixing the position of the floating island 4 in the water;

[0049] The drive device 5 includes four groups of drive units located at four positions, one at each of the two lateral ends and one at each of the two longitudinal ends of the bottom of the floating island 4. Each group of drive units includes a drive motor 51 and its transmission assembly fixedly mounted on the floating island 4, a drive shaft 52 connected to the power output shaft of the drive motor 51 and its transmission assembly, and a propeller 53 coaxially fixedly mounted on the outer periphery of the drive shaft 52. The drive shaft 52 and propeller 53 are located below the floating island 4. The drive shafts 52 of the two drive units located at the lateral ends extend in the transverse direction and have coaxial axes, while the drive shafts 52 of the two drive units located at the longitudinal ends extend in the longitudinal direction and have coaxial axes.

[0050] The fixing device 6 includes one or more fixing anchors 61 arranged under the floating island 4 for fixing the floating island 4, chains 62 respectively connected to each fixing anchor 61, a roller device 63 installed on the floating island 4 and connected to each chain 62 for winding, tightening or loosening each chain 62 to control the lifting and lowering of the corresponding fixing anchor 61, and one or more chain clamping devices 64 arranged beside the roller device 63 for clamping or loosening the corresponding chain 62 wrapped around the roller device 63.

[0051] Preferably, the roller device 63 includes a roller frame 631 fixedly mounted on the floating island 4, a roller shaft 632 rotatably connected to the roller frame 631 and extending in the horizontal direction, roller bodies 633 fixedly mounted on the roller shaft 632 and corresponding in number to the fixed anchors 61, and a roller motor 634 and its transmission assembly mounted on the roller frame 631 and connected to one axial end of the roller shaft 632 for driving the roller shaft 632 to rotate. One end of the chain 62 is fixedly connected to and wound around the roller body 633 corresponding to the chain 62 in the roller device 63, and the other end is connected to the fixed anchor 61.

[0052] Each set of chain devices 64 includes a chain frame 641 arranged beside the corresponding roller body 633, a chain arm 643 with one end rotatably connected to the chain frame 641 through a rotating shaft 642 arranged horizontally and parallel to the winding roller axis 632, a pin 644 fixedly set at the bottom of the other end of the chain arm 643, and a chain driving device 645 connected to the rotating shaft 642 for driving the chain arm 643 to swing up and down around its rotating shaft 642. The other end of the chain arm 643 is set above the corresponding roller body 633. When the chain arm 643 moves downward, the pin 644 on the chain arm 643 can be inserted into the internal through hole of a link of the chain 62 wound around the corresponding roller body 633.

[0053] In order to facilitate the installation of the floating island and the fixation of the aquatic plants, the floating island 4 includes a plurality of floating plates 1 that can float on the water surface, a fixing connector 2 for connecting the floating plates 1 to each other, and a planting basket 3 installed in each floating plate 1 for planting aquatic plants a;

[0054] The floating plate 1 includes a plate body 11, and the middle portion of the plate body 11 is provided with one or more planting mounting holes 12 extending in the vertical direction and passing through the upper and lower planes of the plate body 11 for mounting a planting basket 3. The planting basket 3 includes a basket body 31 that can be mounted in the planting mounting hole 12 and whose bottom can pass through the planting mounting hole 12 and extend to the bottom of the plate body 11, and an annular flange 32 fixedly arranged on the outer periphery of the upper end of the basket body 31 and extending outward in a direction away from the vertical center line of the planting mounting hole 12. The bottom of the annular flange 32 of the planting basket 3 is overlapped above the outer peripheral edge of the upper end of the planting mounting hole 12 of the plate body 11. The middle portion of the basket body 31 is provided with a planting groove 33 extending in the vertical direction with an open top and a semi-closed bottom;

[0055] The bottom of the planting groove 33 is also provided with an elastic ring body 34 extending upward from the bottom, the middle part of the elastic ring body 34 is a hollow hole opening upward and downward, and the ring body diameter of the elastic ring body 34 in the middle part in the vertical direction is smaller than the ring body diameter at the upper and lower ends, and the upper and lower end walls of the elastic ring body 34 gradually tighten in the process of extending toward the middle position, and the upper outer edge of the elastic ring body 34 is also provided with a second annular flange 341 extending outward in a direction away from the axis, and the planting basket 3 also includes one or more sets of vertical holes passing through the elastic ring body 3 The bolt and nut assembly 35 for adjusting the height of the elastic ring body 34 in the vertical direction is provided between the second annular flange 341 of 4 and the bottom of the planting groove 33. The aquatic plant a is vertically placed in the hollow hole of the elastic ring body 34 of the planting basket 3, and when the nut of the bolt and nut assembly 35 is tightened to move the second annular flange 341 at the upper end of the elastic ring body 34 downward, the middle tightening position of the elastic ring body 34 can shrink and tighten the lower part of the aquatic plant a and fix it, and the bottom of the planting groove 33 is provided with a plurality of hollow through holes 36 extending downward and penetrating the bottom of the groove, and the roots of the aquatic plant a can extend into the water below the basket body 31 through the hollow through holes 36.

[0056] Preferably, the elastic ring body 34 is provided with a plurality of separation grooves which are evenly distributed around its circumference and extend upward from a position near the bottom of the ring body to a position near the top of the ring body and pass through the inner and outer circumferential walls of the elastic ring body 34 for facilitating the elastic ring body 34 to be tightened toward the center of the elastic ring body 34 or to expand outward.

[0057] In order to facilitate the splicing of the floating board, the board body 11 is square in shape, and four connecting seats 13 are provided on the upper surface of the board body 11, which are respectively arranged on the four outer edge lines. Each connecting seat 13 includes a seat body 131 fixedly connected to the corresponding edge line of the board body 11 and extending along the length direction of the corresponding edge line and protruding upward, and a connecting portion 132 fixedly provided at the upper end of the seat body 131 and extending along the length direction of the corresponding edge line and protruding toward the vertical center line of the board body 11. The outer side walls between the adjacent parts of the two adjacent board bodies 11 and their corresponding connecting seats 13 are connected to each other in a corresponding manner; the fixed connecting member 2 includes A push rod member 21 is connected between the two corresponding adjacent connecting seats 13 and extends in a horizontal straight line direction. The middle part of the push rod member 21 is provided with a T-shaped slot 211 with a T-shaped lower end extending downward to the bottom of the push rod member 21. The T-shaped slot 211 extends along the length direction of the push rod member 21 and passes through one end face of the push rod member 21. The T-shaped slot 211 of the push rod member 21 can be simultaneously placed on the outer periphery of the two corresponding adjacent connecting seats 13 to fix the two connecting seats 13; the fixed connecting member 2 also includes one or more screws 22 that are inserted between the connecting portion 132 of the push rod member 21 and the corresponding connecting seat 13.

[0058] In order to prevent the planting basket from falling out upward and to limit the planting rotation, the outer peripheral wall of the basket body 31 is further provided with a circle of limiting flanges 311 extending and protruding in a direction away from the axis, and the inner peripheral wall of the planting installation hole 12 is provided with a circle of annular grooves 121 recessed in a direction away from the axis and corresponding to the limiting flanges 311. When the basket body 31 is installed in the planting installation hole 12 from top to bottom, the limiting flanges 311 of the basket body 31 can be installed and engaged in the annular grooves 121, thereby preventing the basket body 31 from falling out of the planting installation hole 12 in the vertical direction.

[0059] The bottom of the annular flange 32 is also provided with one or more positioning posts 321 that are spaced apart and extended downward along the same circumferential direction around the center of the annular flange 32. The plate body 11 is provided with positioning grooves 14 that are recessed downward in the vertical direction at positions corresponding to the positioning posts 321. The positioning posts 321 of the annular flange 32 are installed in the positioning grooves 14 of the plate body 11 to prevent the planting basket 3 from rotating around the central axis of the planting mounting hole 12.

[0060] In order to facilitate the supply of oxygen to aquatic plants, the mobile sewage purification floating island device also includes an aeration device 7 installed on the floating island 4. The aeration device 7 includes a blower 71 fixedly installed on the floating island 4, and one or more oxygen supply pipes 72 connected to the air outlet of the blower 71 and extending and arranged at different positions on the bottom of the floating island 4.

[0061] Preferably, the planting installation hole 12 is in the shape of a truncated cone with a larger top and a smaller bottom. The shape and size of the outer peripheral wall of the installation portion of the basket body 31 used to cooperate with the planting installation hole 12 corresponds to the shape and size of the planting installation hole 12.

[0062] In order to improve the purification efficiency, the water plant a is a royal hyssop. The water plant a is not limited to royal hyssop, and can also be other plants, such as water lilies, reeds, etc.

[0063] The mobile sewage purification floating island device can use a solar device 8 installed on the floating island 4 to power various motor equipment and components.

[0064] Although the present invention is illustrated and described using specific embodiments and their alternatives, it should be understood that various changes and modifications can be implemented without departing from the spirit and scope of the present invention. Therefore, it should be understood that the present invention is not limited in any sense except by the limitations of the appended claims and their equivalents.

Claims

1. A mobile sewage purification floating island device, characterized by: It comprises a floating island (4) for planting aquatic plants (a) in water, a driving device (5) for driving the floating island (4) to move in the water, and a fixing device (6) for fixing the position of the floating island (4) in the water; The driving device (5) includes four groups of driving units arranged at four positions at the two lateral ends and the two longitudinal ends of the bottom of the floating island (4), each group of driving units includes a driving motor (51) fixedly arranged on the floating island (4) and its transmission assembly, a driving shaft (52) connected to the power output shaft of the driving motor (51) and its transmission assembly, and a propeller (53) coaxially fixedly installed on the outer periphery of the driving shaft (52), the driving shaft (52) and the propeller (53) are located below the floating island (4), wherein the driving shafts (52) of the two groups of driving units located at the two lateral ends extend in the lateral direction and have coaxial axis, and the driving shafts (52) of the two groups of driving units located at the two longitudinal ends extend in the longitudinal direction and have coaxial axis; The fixing device (6) includes one or more fixing anchors (61) arranged below the floating island (4) for fixing the floating island (4), chains (62) respectively connected to each fixing anchor (61), a roller device (63) installed on the floating island (4) and connected to each chain (62) for winding, tightening or loosening each chain (62) to control the lifting of the corresponding fixing anchor (61), and one or more chain clamping devices (64) arranged beside the roller device (63) for clamping or loosening the corresponding chain (62) wound on the roller device (63); The floating island (4) comprises a plurality of floating plates (1) capable of floating on the water surface, fixed connectors (2) for interconnecting the floating plates (1), and planting baskets (3) installed in the floating plates (1) for planting aquatic plants (a); The floating plate (1) includes a plate body (11), the plate body (11) is provided with one or more planting mounting holes (12) extending in the vertical direction and penetrating the upper and lower planes of the plate body (11) for mounting a planting basket (3), the planting basket (3) including a basket body (31) which can be mounted in the planting mounting hole (12) and whose bottom can pass through the planting mounting hole (12) and extend below the plate body (11), and an annular flange (32) fixedly arranged on the outer periphery of the upper end of the basket body (31) and extending outward in a direction away from the vertical center line of the planting mounting hole (12), the bottom of the annular flange (32) of the planting basket (3) overlaps the upper outer peripheral edge of the planting mounting hole (12) of the plate body (11), and the basket body (31) is provided with a planting groove (33) extending in the vertical direction in the middle thereof, which is open at the top and semi-closed at the bottom; An elastic ring body (34) extending upward from the bottom is also provided above the bottom of the planting groove (33), the middle part of the elastic ring body (34) is a hollow hole opened upward and downward, and the ring body diameter size of the elastic ring body (34) located in the middle part in the vertical direction is smaller than the ring body diameter size located at the upper and lower end parts, and the diameter of the upper end ring wall and the lower end ring wall of the elastic ring body (34) gradually tightens in the process of extending toward the middle position, and the outer edge of the upper end of the elastic ring body (34) is also provided with a second annular flange (341) extending outward in a direction away from the axis, and the planting basket (3) also includes one or more second annular flanges vertically penetrating the elastic ring body (34). A bolt and nut assembly (35) is provided between the edge (341) and the bottom of the planting groove (33) for adjusting the height of the elastic ring body (34) in the vertical direction, the aquatic plant (a) is vertically placed in the hollow hole of the elastic ring body (34) of the planting basket (3), and when the nut of the bolt and nut assembly (35) is tightened to move the second annular flange (341) at the upper end of the elastic ring body (34) downward, the middle tightening position of the elastic ring body (34) can shrink and tighten the lower part of the aquatic plant (a) and fix it, and the bottom of the planting groove (33) is provided with a plurality of hollow through holes (36) extending downward and penetrating the bottom of the groove, and the roots of the aquatic plant (a) can extend into the water below the basket body (31) through the hollow through holes (36); The roller device (63) comprises a roller frame (631) fixedly arranged on the floating island (4), a roller shaft (632) rotatably connected to the roller frame (631) and extending in the horizontal direction, roller bodies (633) fixedly mounted on the roller shaft (632) and corresponding in number to the fixed anchors (61), and a roller motor (634) and a transmission assembly thereof, which is mounted on the roller frame (631) and connected to one axial end of the roller shaft (632) and is used to drive the roller shaft (632) to rotate. One end of the chain (62) is fixedly connected to and wound around the roller body (633) corresponding to the chain (62) in the roller device (63), and the other end is connected to the fixed anchor (61); Each set of chain devices (64) includes a chain frame (641) arranged beside the corresponding roller body (633), a chain arm (643) one end of which is rotatably connected to the chain frame (641) through a rotating shaft (642) arranged horizontally and parallel to the roller shaft (632), a latch (644) fixedly arranged at the bottom of the other end of the chain arm (643), and a chain driving device (645) connected to the rotating shaft (642) for driving the chain arm (643) to swing up and down around its rotating shaft (642), wherein the other end of the chain arm (643) is arranged above the corresponding roller body (633), and when the chain arm (643) moves downward, the latch (644) on the chain arm (643) can be locked into an internal through hole of a chain link of the chain (62) wound around the corresponding roller body (633).

2. The mobile sewage purification floating island device according to claim 1 is characterized in that: The elastic ring body (34) is provided with a plurality of separation grooves which are distributed on the ring body at equal intervals in a circumferential direction thereof and extend upward from a position close to the bottom of the ring body to a position close to the top of the ring body and penetrate the inner and outer peripheral walls of the elastic ring body (34) for facilitating the elastic ring body (34) to be tightened toward the center of the elastic ring body (34) or to expand outward.

3. The mobile sewage purification floating island device according to claim 1 is characterized in that: The plate body (11) is square in shape, and four connecting seats (13) are provided on the upper surface of the plate body (11) and are arranged on four outer edge lines. Each connecting seat (13) includes a seat body (131) fixedly connected to the corresponding edge line of the plate body (11) and extending along the length direction of the corresponding edge line and protruding upward, and a connecting portion (132) fixedly provided at the upper end of the seat body (131) and extending along the length direction of the corresponding edge line and protruding in the direction close to the vertical center line of the plate body (11). The outer side walls between the adjacent parts of the two adjacent plate bodies (11) and their corresponding connecting seats (13) are connected to each other in a corresponding manner; the fixed connecting member (2) includes a connecting portion (132) connected to the corresponding two adjacent plates (11) and a connecting portion (132) connected to the corresponding two adjacent plates (11). A push rod member (21) is provided between the connecting seats (13) and extends in a horizontal straight line direction. The middle part of the push rod member (21) is provided with a T-shaped T-slot (211) with the lower end of the T extending downwardly through the bottom of the push rod member (21). The T-slot (211) extends along the length direction of the push rod member (21) and passes through one end face of the push rod member (21). The T-slot (211) of the push rod member (21) can be simultaneously placed on the outer periphery of two corresponding adjacent connecting seats (13) to fix the two connecting seats (13); the fixed connecting member (2) also includes one or more screws (22) that are connected between the push rod member (21) and the connecting portion (132) of the corresponding connecting seat (13).

4. The mobile sewage purification floating island device according to claim 1 is characterized in that: The outer peripheral wall of the basket body (31) is further provided with a circle of limiting flanges (311) extending and protruding in a direction away from the axis, and the inner peripheral wall of the planting installation hole (12) is provided with a circle of annular grooves (121) recessed in a direction away from the axis and corresponding to the limiting flanges (311). When the basket body (31) is installed into the planting installation hole (12) from top to bottom, the limiting flanges (311) of the basket body (31) can be installed and clamped in the annular grooves (121), thereby preventing the basket body (31) from vertically separating from the planting installation hole (12) upward. The bottom of the annular flange (32) is further provided with one or more positioning posts (321) spaced apart and extending downward along the same circumferential direction around the center of the annular flange (32). The plate body (11) is provided with positioning grooves (14) recessed downward in the vertical direction at positions corresponding to the positioning posts (321). The positioning posts (321) of the annular flange (32) are installed in the positioning grooves (14) of the plate body (11) to prevent the planting basket (3) from rotating around the central axis of the planting installation hole (12).

5. The mobile sewage purification floating island device according to claim 1 is characterized in that: The mobile sewage purification floating island device further comprises an aeration device (7) mounted on the floating island (4), wherein the aeration device (7) comprises a blower (71) fixedly mounted on the floating island (4), and one or more oxygen supply pipes (72) connected to the air outlet of the blower (71) and extending and arranged at different positions on the bottom of the floating island (4).

6. The mobile sewage purification floating island device according to any one of claims 2 to 4, characterized in that: The planting installation hole (12) is in the shape of a truncated cone with a larger top and a smaller bottom. The shape and size of the outer peripheral wall of the installation portion of the basket body (31) used to cooperate with the planting installation hole (12) corresponds to the shape and size of the planting installation hole (12).

7. The mobile sewage purification floating island device according to any one of claims 1 to 5, characterized in that: The aquatic plant (a) is Pennisetum chinense.

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