River ecological restoration floating body oxygenation device

Abstract

The invention discloses a river ecological restoration floating body oxygenation device, which comprises a floating body frame, a counterweight frame, an oxygen supply mechanism, an oxygen discharge pipe group and a wave making plate, the floating body frame comprises a floating body group and a hinge rod group, the floating body group comprises two floating bodies arranged at an interval along the transverse direction, and the two floating bodies are fixedly connected together; the two floating body sets are arranged in the water flow direction at intervals, and the front floating body set is fixed in a river channel and hinged to the rear floating body set through the hinge rod set to form a rectangular floating body frame. The wave making plate is mounted at the river bottom below the rear floating body group; the floating body oxygenation device is unique in structure and ingenious in design, water flow and natural force of waves are used for driving the floating body oxygenation device to work, waves are generated through the wave making plate to promote the floating body to float up and down, the oxygen supply mechanism is activated to increase dissolved oxygen in water, and the purpose of improving water quality in an energy-saving and environment-friendly mode is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of river ecological environment restoration, and particularly relates to a floating body oxygenation device for river ecological restoration. Background Art

[0002] With the rapid development of industrialization and urbanization, a large number of pollutants are discharged into rivers, resulting in an increasingly serious phenomenon of water eutrophication. When the organic matter in the water is decomposed and the dissolved oxygen is exhausted, an anoxic state will occur. The anoxia in the river not only inhibits the growth and reproduction of aquatic organisms, but may also cause fish and other aquatic organisms to suffocate and die, destroying the ecological balance. In addition, long-term anoxia will promote the activities of anaerobic microorganisms, producing harmful gases such as hydrogen sulfide, further deteriorating the water quality and threatening the surrounding ecological environment and human health.

[0003] Traditional river oxygenation measures mainly include mechanical aeration, fountain-type oxygenators, etc. Although these methods can increase the oxygen content in the water to a certain extent, they generally have problems such as high energy consumption, high operating costs, and complex maintenance, and are difficult to implement in some remote or areas with inconvenient power supply. Therefore, it is particularly necessary to develop an oxygenation device that can effectively utilize natural forces and does not require external energy input. Summary of the Invention

[0004] Aiming at the defects and problems existing in the existing floating body oxygenation device for river ecological restoration, the present invention provides a floating body oxygenation device for river ecological restoration. The device has a unique structure and ingenious design, uses the natural forces of water flow and waves to drive the floating body oxygenation device to work, generates waves through a wave-making board to make the floating body float up and down, activates the oxygen supply mechanism to increase the dissolved oxygen in the water, so as to achieve the purpose of improving water quality in an energy-saving and environmentally friendly manner.

[0005] The solution adopted by the present invention to solve its technical problems is as follows: A river ecological restoration floating body oxygenation device, which includes a floating body frame, a counterweight frame, an oxygen supply mechanism, an oxygen discharge pipe group, and a wave-making board. The floating body frame includes a floating body group and a hinge rod group. The floating body group includes two floating bodies arranged at intervals in the transverse direction, and the two floating bodies are fixedly connected together. Two groups of floating body groups are arranged at intervals along the water flow direction, and the front floating body group is fixed in the river channel and is hinged to the rear floating body group through the hinge rod group to form a rectangular floating body frame. The wave-making board is installed at the bottom of the river under the rear floating body group. The counterweight frame includes a counterweight rod and a lower hinge rod. The counterweight rods are arranged in parallel at intervals under the rear floating body group, and lower hinge rods are symmetrically connected to the left and right ends of the counterweight rod. The front ends of the lower hinge rods are all hinged to the upper front floating body group. The oxygen supply mechanism includes a plurality of oxygen supply cylinders installed at intervals along the axial direction on the counterweight rod. The oxygen supply cylinder includes a cylinder body rotatably installed on the counterweight rod, a piston is installed in the cylinder body in a matching manner, a telescopic rod is installed at the top of the piston in a matching manner, the telescopic rod extends upward out of the cylinder body and is hinged to the upper rear floating body group. An elastic member is installed on the telescopic rod in the cylinder body above the piston in a matching manner, and the elastic member pushes the piston to control the oxygen supply cylinder to maintain a retracted state in the natural state. An air inlet hole and an exhaust hole communicating with the inner cavity of the cylinder body below the piston are provided at the bottom of the cylinder body in a matching manner. The air inlet hole is unidirectionally communicated with an air extraction pipe, and the air inlet end of the air extraction pipe extends upward out of the water surface. The exhaust hole is unidirectionally communicated with the air inlet end of the oxygen discharge pipe group, and the oxygen discharge pipe group is immersed in the water.

[0006] The oxygen discharge pipe group includes oxygen discharge pipes symmetrically arranged on the left and right sides of the counterweight frame. A plurality of oxygen discharge pipes on the left and right sides of the counterweight frame are arranged at intervals along the direction of the counterweight frame, and are all fixedly connected to the lower hinge rods on the adjacent sides of the counterweight frame. The air inlet ends of the oxygen discharge pipes are all unidirectionally communicated with the exhaust holes of the oxygen supply cylinders.

[0007] An air collection barrel is installed transversely on the counterweight rod. The exhaust holes of all the oxygen supply cylinders of the oxygen supply mechanism are unidirectionally communicated with the air collection barrel, and the oxygen discharge pipes are communicated with the air collection barrel.

[0008] An air cavity communicating with the air collection barrel is installed in the lower hinge rod in a matching manner, and the oxygen discharge pipe is communicated with the air cavity in the lower hinge rod on the same side.

[0009] A connecting rod is provided between adjacent two floating bodies in the same floating body group, and the two ends of the connecting rod are respectively fixedly connected to the adjacent floating bodies.

[0010] The hinge rod group includes two upper hinge rods arranged at intervals in the transverse direction. The front ends of the two upper hinge rods are respectively hinged to the bottoms of the two floating bodies of the front floating body group, and the tail ends of the two upper hinge rods are respectively hinged to the bottoms of the two floating bodies of the rear floating body group.

[0011] A hinge seat is fixedly installed at the bottom of each floating body. The front and rear ends of the upper hinge rod are respectively hinged and installed in the hinge seats at the bottoms of the corresponding floating bodies in the front and rear floating body groups. The front ends of the two lower hinge rods are respectively hinged and inserted into the hinge seats at the bottoms of the two floating bodies in the front floating body group, and the lower hinge rods are located below the upper hinge rod.

[0012] A gas hole communicating with the internal cavity above the piston in the cylinder body is provided at the top end of each air supply cylinder body in a matching manner.

[0013] The gas hole at the top end of the cylinder body includes an air inlet hole a and an exhaust hole b, and both the air inlet hole a and the exhaust hole b communicate with the internal cavity above the piston in the cylinder body; a lower top spring is installed in the cylinder body below the piston in a matching manner, and the lower top spring pushes the piston in the natural state to control the air supply cylinder to maintain a semi-retracted state; the air inlet hole a is unidirectionally communicated with the suction pipe, and the exhaust hole b is unidirectionally communicated with the inlet end of the oxygen discharge pipe group.

[0014] The beneficial effects of the present invention: The river ecological restoration floating body oxygenation device provided by the present invention forms a wave response framework through the articulated design of the double floating body group, and combines the gravity anchoring system of the counterweight block and the double-chamber air supply cylinder structure to achieve the efficient capture and conversion of wave energy: The double-chamber air supply cylinder utilizes the synergistic effect of the upper and lower elastic members and the two-way gas path design. During the wave lifting stage, the gas in the upper chamber is compressed and the air in the lower chamber is sucked, and during the descending stage, the double-chamber compressed gas is released synchronously, so that two efficient exhausts are completed within a single wave cycle; the counterweight block accurately matches the water flow power to ensure that more than 90% of the wave energy is converted into elastic potential energy; the modular floating body group adopts a quick-install structure of a threaded sleeve, and cooperates with the adaptive hinge rod and the microporous oxygen discharge pipe network to form a three-dimensional oxygenation system with zero energy consumption and wide flow velocity adaptation, realizing energy-saving and environmental protection operation without external energy input compared with traditional equipment. Its structural design is unique, with high stability and adaptability, and avoids the problems of high energy consumption, high operating cost and complex maintenance of traditional oxygenation equipment. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the floating body frame of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the floating body of the present invention.

[0018] Figure 4 It is a schematic diagram of the installation position of the hinge seat of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the oxygen supply mechanism of the present invention.

[0020] Figure 6 It is one of the structural schematic diagrams of the air supply cylinder of the present invention.

[0021] Figure 7 It is the second schematic diagram of the air supply cylinder structure of the present invention. Figure 8 It is a schematic diagram of the installation position of the wave-making board of the present invention.

[0022] Reference numerals in the figure: 1 is a floating body frame, 11 is a floating body, 12 is an upper hinge rod, 13 is a connecting rod, 14 is a cross-shaped framework, 15 is a threaded sleeve, 16 is a hinge seat, 161 is a screw rod, 17 is an anti-loosening nut, 18 is a power rod, 2 is a counterweight frame, 21 is a counterweight rod, 22 is a lower hinge rod, 3 is an air supply cylinder, 31 is a cylinder block, 311 is an air inlet hole, 312 is an exhaust hole, 313 is an air inlet hole a, 314 is an exhaust hole b, 32 is a piston, 33 is a telescopic rod, 34 is an elastic member, 35 is a one-way air inlet valve, 36 is a one-way exhaust valve, 37 is a lower top spring, 4 is an oxygen discharge pipe, 5 is an air collection barrel, 6 is an air extraction pipe, 61 is a hard pipe, 62 is a soft air extraction pipe, 7 is a wave-making board, 8 is a counterweight block. Specific embodiments

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. Embodiment

[0024] In response to the problems raised in the above-mentioned background art, this embodiment provides a floating body oxygenation device for river ecological restoration, as Figure 1-8 shown, including a floating body frame 1, a counterweight frame 2, an oxygen supply mechanism, an oxygen discharge pipe group and a wave-making board. The floating body frame includes a floating body group and a hinge rod group. The floating body group includes a plurality of floating bodies 11 arranged at intervals in the transverse direction, and adjacent floating bodies are fixedly connected together. In this embodiment, the floating body group includes two spherical floating bodies 11 arranged at intervals in the transverse direction. There are two groups of floating body groups arranged at intervals along the water flow direction. The floating body group located at the front side is the front floating body group, and the floating body group located at the rear side is the rear floating body group. After installation, the water flow in the river passes through the front and rear floating body groups in sequence; and the front floating body group is fixed in the river and is hinged to the rear floating body group through the hinge rod group to form a rectangular floating body frame. Specifically: As Figure 3As shown in the figure, there are various ways to fix the front floating body group in the river channel. For example, the floating bodies in the front floating body group are installed in the river channel through anchor rods or chains. One end of the anchor rod or chain is fixedly connected to the floating body in the floating body group, and the other end of the anchor rod or chain is directly fixed to the river bottom; a cross-shaped framework 14 is provided inside the floating body 11, and a threaded sleeve 15 is fixed at the end of the cross-shaped framework. The threaded sleeve 15 extends out of the floating body surface, facilitating the connection between the floating bodies and between the floating bodies and each rod. For example, a connecting rod 13 is provided between two adjacent floating bodies in the same floating body group. Threaded sections matching the threaded sleeves are provided at both ends of the connecting rod 13, and the threaded sections at both ends of the connecting rod are respectively installed in the corresponding threaded sleeves of the adjacent side floating bodies, thereby fixedly connecting the two floating bodies together. The threaded connection method can achieve rapid on-site assembly and facilitate the transportation and installation of the device.

[0025] The articulated rod group includes two upper articulated rods 12 arranged at intervals in the transverse direction. The front ends of the two upper articulated rods 12 are respectively hinged to the bottoms of the two floating bodies in the front floating body group, and the rear ends of the two upper articulated rods are respectively hinged to the bottoms of the two floating bodies in the rear floating body group. Specifically: A hinge seat 16 is fixedly installed at the bottom of each floating body 11. There are various ways to fixedly connect the hinge seat 16 to the floating body. For example, a screw rod 161 matching the threaded sleeve at the bottom of the floating body is provided at the top of the hinge seat. The screw rod is fitted and installed in the threaded sleeve. The front and rear ends of the upper articulated rod are respectively hinged and installed in the hinge seats at the bottoms of the corresponding floating bodies in the front and rear floating body groups, thereby connecting the front and rear floating body groups together to form a rectangular floating body frame.

[0026] In this embodiment, anti-loosening nuts 17 are fitted and installed on the threaded sections at both ends of the connecting rod and on the screw rod at the top of the hinge seat. After the connecting rod and the screw rod are installed in the corresponding threaded sleeves of the adjacent side floating bodies, the anti-loosening nuts are screwed to make them abut against the end face of the threaded sleeve, thereby enhancing the connection strength between the connecting rod and the hinge seat and the threaded sleeve and preventing them from loosening.

[0027] The wave-making board 7 is installed on the river bottom below the rear floating body group. When the water flow passes through the wave-making board, waves that impact the rear floating body group will be formed on the water surface. Specifically: the water guide board is installed obliquely along the river bottom. When the water flow passes through, it will be forced to move upward. This design utilizes the basic principle of fluid mechanics, that is, when the water flow encounters an obstacle, its flow direction will change, and due to the change in the speed and pressure of the water flow, disturbances will appear on the water surface of the water flow. As the water flow is forced to move upward, undulations of different degrees will occur on the water surface of the water flow, thereby forming waves, and automatically driving the rear floating body group to float up and down during the water flow process.

[0028] The counterweight frame 2 includes a counterweight rod 21 and a lower hinge rod 22. The counterweight rod 21 is arranged in parallel and at intervals below the rear floating body group, and lower hinge rods 22 are symmetrically connected to the left and right ends of the counterweight rod. The front ends of the lower hinge rods 22 are respectively hinged to the upper front floating body group. Specifically: as Figure 2 shown, the front ends of the two lower hinge rods are respectively hinged and inserted into the hinge seats at the bottoms of two floating bodies in the front floating body group, and the lower hinge rods are located below the upper hinge rods.

[0029] The oxygen supply mechanism includes a plurality of oxygen supply cylinders 3 installed at intervals along the axial direction on the counterweight rod. The oxygen supply cylinder 3 includes a cylinder body 31 rotatably installed on the counterweight rod. A piston 32 is matched and installed in the cylinder body. A telescopic rod 33 is matched and installed on the top of the piston. The telescopic rod extends upward out of the cylinder body and is hinged to the upper rear floating body group. Specifically: as Figure 5 shown, a power rod 18 is arranged between the two floating bodies in the rear floating body group. The left and right ends of the power rod are respectively fixedly connected to the hinge seats at the bottoms of the adjacent side floating bodies, and the installation position of the power rod is below the upper hinge rod; the top end of the telescopic rod of each oxygen supply cylinder is rotatably sleeved on the upper power rod.

[0030] An elastic member 34 is matched and installed on the telescopic rod in the cylinder body above the piston. In this embodiment, the elastic member is a support spring. The elastic member 34 pushes the piston in the natural state to control the oxygen supply cylinder to maintain a retracted state; an air inlet hole 311 and an exhaust hole 312 are matched and provided at the bottom of the cylinder body and communicate with the inner cavity of the cylinder body below the piston. The air inlet hole is unidirectionally communicated with an air extraction pipe 6. The air inlet end of the air extraction pipe 6 extends upward out of the water surface. The exhaust hole is unidirectionally communicated with the air inlet end of the oxygen discharge pipe group, and the oxygen discharge pipe group is immersed in the water. Specifically: A one-way intake valve 35 is matched and installed on the air inlet hole of the cylinder body 31. The intake end of the one-way intake valve 35 is communicated with the air extraction pipe 6. The air extraction pipe 6 includes a hard pipe 61 fixedly installed on the rear floating body group. The top end of the hard pipe 61 extends upward out of the water surface. The bottom end of the hard pipe 61 is matched and connected to a flexible air extraction pipe 62. The other end of the flexible air extraction pipe 62 is connected to the intake end of the one-way intake valve on the air inlet hole of the cylinder body; the oxygen discharge pipe group includes oxygen discharge pipes symmetrically arranged on the left and right sides of the counterweight frame. A plurality of oxygen discharge pipes on the left and right sides of the counterweight frame are arranged at intervals along the arrangement direction of the counterweight frame and are all fixedly connected to the adjacent side lower hinge rods of the counterweight frame, and the air inlet ends of the oxygen discharge pipes are all unidirectionally communicated with the exhaust holes of the oxygen supply cylinders.

[0031] as Figure 4As shown in the figure, a gas collecting barrel 5 is transversely installed on the counterweight rod. The exhaust holes of all the air supply cylinders of the oxygen supply mechanism are in one-way communication with the gas collecting barrel. The oxygen discharge pipe is communicated with the gas collecting barrel. There are various ways for the gas collecting barrel to be in one-way communication with the exhaust hole at the bottom of the cylinder body. For example, a one-way exhaust valve 36 is fitted and installed on the exhaust hole at the bottom of the cylinder body. The exhaust end of the one-way exhaust valve is connected with a gas supply hose, and the other end of the gas supply hose is communicated with the gas collecting barrel. When the rear floating body group follows the wave and rises, driving the air supply cylinder of the oxygen supply mechanism to compress the internal elastic member, causing the telescopic rod of the air supply cylinder to extend outwards, the air supply cylinder will extract air through the air extraction pipe. When the rear floating body group follows the wave and descends, the elastic member will push the piston downwards to move, and the air drawn into the air supply cylinder by extension will be discharged into the oxygen discharge pipe group through the gas collecting barrel, and then discharged into the water through each oxygen discharge pipe of the oxygen discharge pipe group.

[0032] There are various ways for the oxygen discharge pipe to be communicated with the gas collecting barrel. For example, an air cavity communicated with the gas collecting barrel is provided inside the lower hinge rod in a matching manner. The oxygen discharge pipe is fitted and installed on the corresponding lower hinge rod and is communicated with the air cavity inside the hinge rod; the oxygen discharge pipe adopts a design of 0.5mm micropores + 45° inclined injection, which prolongs the residence time of bubbles and improves the dissolved oxygen efficiency by 30%-40%; further, a gas hole communicated with the inner cavity of the cylinder body above the piston is provided at the top end of each air supply cylinder body in a matching manner.

[0033] During use, when the river surface waves pass through the rear floating body group, it will drive the rear floating body to float up and down. When the wave crest of the wave gradually approaches the rear floating body group, the water body will push the rear floating body group upwards to make it rise. During this process, the rear floating body group will pull the telescopic rod of the air supply cylinder upwards to drive the piston to move upwards to compress the elastic member for air extraction; when the wave crest passes through the rear floating body group, the rear floating body group begins to enter the trough area and descend. During this process, the compressed elastic member will push the piston downwards to move, causing the telescopic cylinder to retract into the cylinder body, and the angle between the counterweight frame and the floating body frame will become smaller, so as to discharge the air drawn into the cylinder body into the river water through the oxygen discharge pipe group to increase the dissolved oxygen content; the river channel floating body oxygenation device provided in this embodiment utilizes the natural power of water flow and waves, and adopts an inclined water guide plate to generate waves to drive the rear floating body group to float up and down, and then drives the oxygen supply mechanism to increase the dissolved oxygen content of the water body, realizing energy-saving and environmental protection operation without external energy input. Its structural design is unique, with high stability and adaptability, and avoids the problems of high energy consumption, high operation cost and complex maintenance of traditional oxygenation equipment. In addition, the device is easy to install and can be flexibly adjusted according to different river conditions. For example, a counterweight block 8 is installed on the counterweight rod to form a gravity anchoring effect to maintain the spatial stability of the counterweight frame. When the rear floating body group is lifted by the wave, the upward pulling force generated by it needs to first overcome the gravity of the counterweight block (F = mg) before it can drive the counterweight rod to rise, so as to ensure that the counterweight rod remains effectively relatively stationary, causing the air supply cylinder to be stretched, providing an innovative and efficient solution for the restoration and maintenance of the river channel ecological environment. Embodiment

[0034] The difference between Example 2 and Example 1 is as follows Figure 6 As shown, the air holes at the top end of the cylinder block include an intake hole a313 and an exhaust hole b314, and both the intake hole a and the exhaust hole b communicate with the internal cavity of the cylinder block above the piston; a lower top spring 37 is fitted and installed inside the cylinder block below the piston. In the natural state, the lower top spring pushes the piston to compress the elastic member above, so that the control air supply cylinder remains in a semi-retracted state; the intake hole a communicates unidirectionally with the suction pipe, and the exhaust hole b communicates unidirectionally with the intake end of the oxygen discharge pipe group. Specifically A one-way intake valve is also fitted and installed on the intake hole a of the cylinder block. The intake end of the one-way intake valve communicates with the suction pipe. A one-way exhaust valve is also fitted and installed on the exhaust hole b. The exhaust end of this one-way exhaust valve is the same as the one-way exhaust valve on the exhaust hole below the cylinder block and is also connected to a gas supply hose. The other end of this gas supply hose communicates with the gas collection barrel. Therefore, when in use, when the rear floating body group follows the wave and rises to pull the piston in the air supply cylinder upward, the air in the upper chamber of the piston will be discharged into the oxygen discharge pipe group through the gas collection barrel and discharged into the water through each oxygen discharge pipe of the oxygen discharge pipe group. During this process, as the piston moves upward, air will be drawn into the lower chamber. Thus, when the rear floating body group follows the wave and descends, the elastic member will push the piston downward, and the air drawn into the lower chamber during the upward movement will be discharged into the oxygen discharge pipe group through the gas collection barrel and discharged into the water through each oxygen discharge pipe of the oxygen discharge pipe group, improving the air circulation efficiency, exhausting air twice within the wave period, eliminating the oxygen supply intermittent period in the traditional design, and realizing continuous oxygen supply Example

[0035] The difference between Example 3 and Example 2 is that for the river channel floating body oxygenation device provided in this example, one-way exhaust valves are installed at the exhaust ends of each oxygen discharge pipe, thus preventing river water from entering the oxygen discharge pipes and affecting the air discharge effect

[0036] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims or equivalent forms of such scope and boundary

Claims

1. An oxygenation device for floating bodies in river ecological restoration, characterized in that It includes a floating body frame, a counterweight frame, an oxygen supply mechanism, an oxygen discharge pipe group and a wave-making board. The floating body frame includes a floating body group and a hinge rod group. The floating body group includes two floating bodies arranged at intervals in the transverse direction, and the two floating bodies are fixedly connected together. There are two groups of the floating body group arranged at intervals along the water flow direction. The front floating body group is fixed in the river channel and is hinged to the rear floating body group through the hinge rod group to form a rectangular floating body frame. The wave-making board is installed on the river bottom below the rear floating body group. The counterweight frame includes a counterweight rod and a lower hinge rod. The counterweight rods are arranged in parallel at intervals below the rear floating body group, and lower hinge rods are symmetrically connected to the left and right ends of the counterweight rod. The front ends of the lower hinge rods are all hinged to the upper front floating body group. The oxygen supply mechanism includes a plurality of oxygen supply cylinders installed at intervals along the axial direction on the counterweight rod. The oxygen supply cylinder includes a cylinder body rotatably installed on the counterweight rod. A piston is matched and installed in the cylinder body. A telescopic rod is matched and installed on the top of the piston. The telescopic rod extends upward out of the cylinder body and is hinged to the upper rear floating body group. An elastic member is matched and installed on the telescopic rod in the cylinder body above the piston. In the natural state, the elastic member pushes the piston to control the oxygen supply cylinder to maintain a retracted state. An air inlet hole and an exhaust hole are matched and provided at the bottom of the cylinder body and are communicated with the internal cavity of the cylinder body below the piston. The air inlet hole is unidirectionally communicated with an air extraction pipe. The air inlet end of the air extraction pipe extends upward out of the water surface. The exhaust hole is unidirectionally communicated with the air inlet end of the oxygen discharge pipe group, and the oxygen discharge pipe group is immersed in the water.

2. The river ecological restoration floating body oxygenation device according to claim 1, wherein The oxygen discharge pipe group includes oxygen discharge pipes symmetrically arranged on the left and right sides of the counterweight frame. A plurality of oxygen discharge pipes on the left and right sides of the counterweight frame are arranged at intervals along the direction of the counterweight frame and are all fixedly connected to the lower hinge rods on the adjacent sides of the counterweight frame. The air inlet ends of the oxygen discharge pipes are all unidirectionally communicated with the exhaust holes of the oxygen supply cylinders.

3. The river ecological restoration floating body oxygenation device according to claim 2, characterized in that, An air collection barrel is installed transversely on the counterweight rod. The exhaust holes of all the oxygen supply cylinders of the oxygen supply mechanism are unidirectionally communicated with the air collection barrel. The oxygen discharge pipe is communicated with the air collection barrel.

4. The river ecological restoration floating body aeration device according to claim 3, characterized in that, An air cavity communicated with the air collection barrel is matched and provided in the lower hinge rod. The oxygen discharge pipe is communicated with the air cavity in the lower hinge rod on the same side.

5. The oxygenation device for river ecological restoration floating body according to claim 1, characterized in that, A connecting rod is provided between two adjacent floating bodies in the same floating body group. The two ends of the connecting rod are respectively fixedly connected to the adjacent floating bodies.

6. The river ecological restoration floating body oxygenation device according to claim 1, wherein The hinge rod group includes two upper hinge rods arranged at intervals in the transverse direction. The front ends of the two upper hinge rods are respectively hinged to the bottoms of the two floating bodies of the front floating body group. The tail ends of the two upper hinge rods are respectively hinged to the bottoms of the two floating bodies of the rear floating body group.

7. The river ecological restoration floating body oxygenation device according to claim 1, characterized in that, An articulated seat is fixedly installed at the bottom of each floating body. The front and rear ends of the upper hinge rod are respectively hinged and installed in the articulated seats at the bottoms of the corresponding floating bodies in the front and rear floating body groups. The front ends of the two lower hinge rods are respectively hinged and inserted into the articulated seats at the bottoms of the two floating bodies in the front floating body group, and the lower hinge rods are located below the upper hinge rods.

8. The river ecological restoration floating body oxygenation device according to claim 1, characterized in that An air hole communicated with the internal cavity of the cylinder body above the piston is matched and provided at the top end of each oxygen supply cylinder body.

9. The river channel ecological restoration floating body aeration device according to claim 8, characterized in that, The air holes at the top of the cylinder block include an intake hole a and an exhaust hole b, and both the intake hole a and the exhaust hole b are communicated with the inner cavity of the cylinder block above the piston; a lower push spring is installed in the cylinder block below the piston, and the lower push spring pushes the piston in the natural state to control the air supply cylinder to maintain a semi-retracted state; the intake hole a is unidirectionally communicated with the suction pipe, and the exhaust hole b is unidirectionally communicated with the intake end of the oxygen discharge pipe group.

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