An oxygen supply device for ecological restoration of water bodies

Abstract

This invention provides an oxygen supply device for aquatic ecological restoration, relating to the field of oxygen supply technology for aquatic ecological restoration. The device includes an aerator shell with a chassis structure at its lower end. Four bases are arranged in a rectangular pattern on the upper part of the outer wall of the aerator shell. Multiple cyclone structures are arranged vertically on the upper part of the aerator shell. A protective structure is located at the upper end of each cyclone structure. An auxiliary structure is located at the upper end of each cyclone structure inside the protective structure. The auxiliary structure includes an umbrella-shaped metal seat, and a rubber skirt is fixedly connected to the outer wall of the umbrella-shaped metal seat at the upper end of each cyclone structure. When external water pressure is applied downwards, the umbrella-shaped rubber pad is first pressed firmly against the aerator output end, forming a first flexible seal. Simultaneously, the water pressure is transmitted along the shaft to the spring and the cover plate. The greater the water pressure, the tighter the cover plate is pressed under the cooperation of the spring, preventing backflow.

Description

Technical Field

[0001] This invention relates to the field of water body restoration and oxygen supply technology, specifically to an oxygen supply device for water body ecological restoration. Background Technology

[0002] In the field of environmental engineering, the water bodies to be restored mainly refer to black and odorous water bodies and eutrophic water bodies that have been ecologically imbalanced due to external interference. These two types of water bodies have extremely strong environmental characteristics. On the one hand, due to the excessive discharge of organic pollutants, the dissolved oxygen in the water body is consumed in large quantities, resulting in an anaerobic state, which breeds a large number of anaerobic bacteria and produces malodorous gases such as hydrogen sulfide and methane. On the other hand, the water body is filled with various impurities, including algae and long aquatic plants that have proliferated wildly due to eutrophication, as well as deep silt, suspended oil and various domestic solid wastes at the bottom of black and odorous rivers. The ecological restoration of water bodies is essentially a process of underwater emergency rescue and ecological reconstruction. Its core mechanism is to accelerate the material cycle and energy flow of the water body through artificial intervention to restore its self-purification capacity.

[0003] Currently, one of the most efficient and ecological restoration methods recognized in the industry is the combined process of oxygenation and microbial activation. This process involves forcibly injecting oxygen into deep water using mechanical equipment. This not only rapidly oxidizes and decomposes toxic and foul-smelling substances in the water, but more importantly, it provides the necessary electron acceptors for the survival of beneficial aerobic microorganisms in the water. These microorganisms are activated in an oxygen-rich environment, acting like underwater cleaners, converting excess nitrogen, phosphorus, and other nutrients and organic matter into harmless inorganic substances. This fundamentally curbs algal blooms and rebuilds a stable aquatic ecosystem. The oxygen supply device for aquatic ecological restoration is an indispensable component of this process.

[0004] Existing oxygen supply devices for aquatic ecological restoration still have some problems. After existing mobile aerators stop aeration, water flows into the air inlet pipe from the outlet, increasing the weight of the equipment and making it difficult to lift it up. Traditional one-way valves at depths of several meters can generate tremendous hydrostatic pressure from the water column above, easily forcing traditional flaps or small diaphragms open, causing turbid water and sediment to backflow into the delicate air inlet pipe, and even damaging the aeration motor. Therefore, those skilled in the art have provided an oxygen supply device for aquatic ecological restoration to solve the problems mentioned in the background art. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an oxygen supply device for aquatic ecological restoration. It solves the problem that with existing mobile aerators, water flows into the air inlet pipe after aeration stops, increasing the weight of the equipment and making it difficult to lift. Furthermore, traditional one-way valves, at depths of several meters, generate significant hydrostatic pressure from the water column above, easily forcing open traditional flaps or small diaphragms, leading to backflow of turbid water and sediment into the delicate air inlet pipe, and even damaging the aeration motor. Therefore, those skilled in the art have provided an oxygen supply device for aquatic ecological restoration.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: an oxygen supply device for water body ecological restoration, comprising an aerator shell, a chassis structure at the lower end of the aerator shell, four bases arranged in a rectangular pattern on the upper part of the outer side wall of the aerator shell, a plurality of cyclone structures arranged vertically on the upper end of the aerator shell, a protective structure at the upper end of the cyclone structure, and an auxiliary structure at the upper end of the cyclone structure on the inner side of the protective structure.

[0009] The auxiliary structure includes an umbrella-shaped metal base. A rubber skirt is fixedly connected to the outer wall of the umbrella-shaped metal base at the upper end of the cyclone structure. Multiple concentric annular protrusions are provided on the lower end face of the rubber skirt at the upper end of the cyclone structure. A shaft is fixedly connected to the center of the lower end face of the rubber skirt. The shaft passes through the upper end faces of multiple cyclone structures and extends to the lower end of multiple cyclone structures. A thick rod is fixedly connected to the end of the shaft. A pressure plate is fixedly connected to the lower end face of the thick rod. A rubber pad is fixedly connected to the lower end face of the pressure plate. A spring is fitted on the outer side of the upper shaft. When the external air source stops supplying air, the spring releases its stored potential energy, pushing the umbrella-shaped metal seat and shaft to quickly reset. The pressure plate drives the rubber pad to re-press the output end of the air outlet pipe to form a first-level rigid seal. At the same time, the rubber skirt on the outer wall of the umbrella-shaped metal seat uses the annular protrusion on its lower end face to fit tightly with the upper end face of the cyclone structure to form a second-level flexible seal. This double-stage sealing structure uses water pressure to achieve a sealing effect that gets tighter and tighter, completely blocking the path of water backflow along the air outlet pipe and preventing water from entering the equipment and increasing its weight.

[0010] Preferably, a bracket is sleeved on the outer side of the upper shaft of the spring, and a third base ring is fixedly connected to the outer wall of the bracket. Four third extension seats are fixedly connected in a rectangular arrangement on the outer wall of the third base ring. An outer tube is sleeved on the outer side of the thick rod and is fixedly connected to the lower end face of the bracket. The outer tube provides support and guidance. The setting of the third base ring facilitates fixing the bracket at the lower position between the cyclone structure and the aerator shell, providing support force for the spring.

[0011] Preferably, taking one of the cyclone structures as an example, the cyclone structure includes a second base ring, and the outer wall of the second base ring is fixedly connected with a second extension seat in a rectangular arrangement. Each of the four second extension seats has a second through hole at its upper end. Multiple guide plates are fixedly connected to the inner wall of the second base ring, and cylindrical seats are fixedly connected between the multiple guide plates. After passing through the open gap, the gas enters the multi-layer cyclone structure and is forcibly cut and given high-speed rotational kinetic energy through the spiral flow channel formed by the multiple guide plates on the inner side of the second base ring.

[0012] Preferably, the chassis structure includes a base, a threaded groove is formed at the center of the upper surface of the base, the threaded groove is threaded onto the lower part of the outer side wall of the aerator shell, a rubber ring is fixedly connected to the lower part of the outer side wall of the base, multiple channels are formed on the lower end surface of the rubber ring, and a flow guide rounded corner is formed at the edge of the upper surface of the base. After falling into the bottom of the water body, the edge of the rubber ring then adheres to the silt part at the bottom of the water body. By setting the rubber ring, the contact area is increased, the adhesion with the silt is increased, and the aerator shell is prevented from sinking into the silt.

[0013] Preferably, the protective structure includes a first base ring. Four first extension seats are fixedly connected in a rectangular arrangement on the outer wall of the first base ring. Each of the four first extension seats has a first through hole at the center of its upper surface. A connecting seat is fixedly connected to the outer wall of the first base ring between the four first extension seats. A hanging ring is fixedly connected to the upper surface of each of the four connecting seats. A carabiner is fitted onto the upper end of each of the four hanging rings. A pull rope is fixedly connected to one end of each of the four carabiners. A main pull rope is fixedly connected to the other end of each of the four pull ropes. An arc-shaped filter screen is fixedly connected to the upper surface of the first base ring. The four carabiners are hung on the hanging rings respectively. The aerator shell is lowered into the water body that requires oxygen supply through the main pull rope. The arc-shaped filter screen blocks aquatic plants and large particles. The hoisting system consisting of the hanging rings, carabiners, pull ropes, and main pull ropes enables stable lifting and maintenance of the equipment.

[0014] Preferably, an air outlet pipe is provided at the lower end of the rubber pad. The air outlet pipe passes through the inner wall of the aerator shell and extends to one side of the aerator shell. A second flange is fixedly connected to one end of the second flange. A first flange is provided at the other end of the second flange. An air inlet pipe is fixedly connected to the other end of the first flange. An external high-pressure air source enters the air outlet pipe through the air inlet pipe and the connection between the first flange and the second flange. The gas enters the interior of the aerator shell along the air outlet pipe and flows upward.

[0015] Preferably, the upper surface of the protective structure has four bolts arranged in a rectangular pattern. The four bolts pass through the upper surface of the protective structure and the upper surfaces of the multiple cyclone structures in sequence, and their ends are threaded to the center of the upper surface of the base, so as to facilitate the fixing of the protective structure, the multiple cyclone structures and the aerator shell by means of the four bolts.

[0016] Preferably, a counterweight is fixedly connected to the center of the lower end face of the aerator shell. The counterweight at the bottom of the aerator shell ensures that the bottom sinks quickly, so that the protective structure at the top is always in an upward position.

[0017] (III) Beneficial Effects

[0018] This invention provides an oxygen supply device for aquatic ecological restoration. It has the following beneficial effects:

[0019] 1. In this invention, when the external air source stops supplying air, the spring releases the stored potential energy, pushing the umbrella-shaped metal seat and shaft to quickly reset. The pressure plate drives the rubber pad to re-press the output end of the air outlet pipe to form a first-level rigid seal. At the same time, the rubber skirt on the outer wall of the umbrella-shaped metal seat uses the annular protrusion on its lower end face to tightly fit with the upper end face of the cyclone structure to form a second-level flexible seal. This double-level sealing structure uses water pressure to achieve a sealing effect that gets tighter and tighter, completely blocking the path of water backflow along the air outlet pipe and preventing water from entering the equipment and increasing its weight.

[0020] 2. In this invention, four carabiners are respectively hung on the hanging rings, and the aerator shell is lowered into the water body that requires oxygen supply through the main pull rope. The arc-shaped filter screen blocks aquatic plants and large particles. The hoisting system composed of the hanging rings, carabiners, and the pull ropes and the main pull rope achieves stable lifting and maintenance of the equipment.

[0021] 3. In this invention, after falling to the bottom of the water body, the edge of the rubber ring is then attached to the silt at the bottom of the water body. By setting the rubber ring, the contact area is increased, the adhesion with the silt is increased, and the aerator shell is prevented from sinking into the silt. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a perspective view of the invention from another angle;

[0024] Figure 3 This is a three-dimensional sectional view of the present invention;

[0025] Figure 4 This is a three-dimensional exploded view of the present invention;

[0026] Figure 5 This is a perspective view of the protective structure of the present invention;

[0027] Figure 6 This is a perspective view of the aerator shell of the present invention;

[0028] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 8 for Figure 3 Enlarged diagram of point B in the middle.

[0030] The components include: 1. Aerator shell; 2. Chassis structure; 3. Protective structure; 4. Cyclone structure; 5. Inlet pipe; 6. Base; 7. First flange; 8. Second flange; 9. Outlet pipe; 10. Auxiliary structure; 11. Bolts.

[0031] 201. Base; 202. Rubber ring; 203. Channel; 204. Threaded groove; 205. Guide radius;

[0032] 301. First base ring; 302. First extension seat; 303. First through hole; 304. Connecting seat; 305. Hanging ring; 306. Carabiner; 307. Branch rope; 308. Main rope; 309. Curved filter screen;

[0033] 401. Second base ring; 402. Second extension seat; 403. Second through hole; 404. Guide plate; 405. Cylindrical seat;

[0034] 1001, Umbrella-shaped metal seat; 1002, Third base ring; 1003, Third extension seat; 1004, Bracket; 1005, Rubber skirt; 1006, Annular protrusion; 1007, Shaft; 1008, Spring; 1009, Thick rod; 1010, Pressure plate; 1011, Rubber pad; 1012, Outer tube. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1:

[0037] like Figure 1-8 As shown, this embodiment of the invention provides an oxygen supply device for water body ecological restoration, including an aerator shell 1, a chassis structure 2 at the lower end of the aerator shell 1, four bases 6 arranged in a rectangle near the upper part of the outer side wall of the aerator shell 1, a plurality of cyclone structures 4 arranged vertically at the upper end of the aerator shell 1, a protective structure 3 at the upper end of the cyclone structure 4 near the upper part, and an auxiliary structure 10 at the upper end of the cyclone structure 4 near the inner side of the protective structure 3.

[0038] like Figure 3 , 4As shown in Figures 7 and 8, the auxiliary structure 10 includes an umbrella-shaped metal base 1001. A rubber skirt 1005 is fixedly connected to the outer wall of the umbrella-shaped metal base 1001 at the upper end of the cyclone structure 4. Multiple concentric annular protrusions 1006 are provided on the lower end surface of the rubber skirt 1005 at the upper end of the cyclone structure 4. A shaft 1007 is fixedly connected to the center of the lower end surface of the rubber skirt 1005. The shaft 1007 passes through the upper end surface of the multiple cyclone structures 4 and extends to the lower end of the multiple cyclone structures 4. A thick rod 1009 is fixedly connected to the end of the shaft 1007. A pressure plate 1010 is fixedly connected to the lower end surface of the thick rod 1009. A rubber pad 1011 is fixedly connected to the lower end surface of the pressure plate 1010. A spring 1008 is sleeved on the outer side of the upper shaft 1007 of the rod 1009. When the external air source stops supplying, the spring 1008 releases the stored potential energy, pushing the umbrella-shaped metal seat 1001 and the shaft 1007 to quickly reset. The pressure plate 1010 drives the rubber pad 1011 to press the output end of the air outlet pipe 9 again to form a first-level rigid seal. At the same time, the rubber skirt 1005 on the outer wall of the umbrella-shaped metal seat 1001 uses the annular protrusion 1006 on its lower end face to fit tightly with the upper end face of the cyclone structure 4 to form a second-level flexible seal. This double-level sealing structure uses water pressure to achieve a sealing effect that gets tighter and tighter, completely blocking the path of water backflow along the air outlet pipe 9 and preventing water from entering the equipment and increasing its weight.

[0039] A bracket 1004 is fitted on the outer side of the upper shaft 1007 of the spring 1008. A third base ring 1002 is fixedly connected to the outer wall of the bracket 1004. Four third extension seats 1003 are fixedly connected in a rectangular arrangement on the outer wall of the third base ring 1002. An outer tube 1012 is fitted on the outer side of the thick rod 1009. The outer tube 1012 is fixedly connected to the lower end face of the bracket 1004. The outer tube 1012 provides support and guidance. The setting of the third base ring 1002 facilitates the fixing of the bracket 1004 in the position between the lower cyclone structure 4 and the aerator shell 1, providing support for the spring 1008.

[0040] like Figure 1 , 2 As shown in Figures 3, 4, and 8, taking one of the cyclone structures 4 as an example, the cyclone structure 4 includes a second base ring 401. The outer wall of the second base ring 401 is rectangularly arranged and fixedly connected with second extension seats 402. Each of the four second extension seats 402 has a second through hole 403 at its upper end. Multiple guide plates 404 are fixedly connected to the inner wall of the second base ring 401. A cylindrical seat 405 is fixedly connected between the multiple guide plates 404. After passing through the open gap, the gas enters the multi-layer cyclone structure 4. Through the spiral flow channel formed by the multiple guide plates 404 inside the second base ring 401, it is forcibly cut and given high-speed rotational kinetic energy.

[0041] like Figure 1 , 2As shown in Figures 3 and 4, the chassis structure 2 includes a base 201. A threaded groove 204 is provided at the center of the upper surface of the base 201. The threaded groove 204 is threaded onto the lower part of the outer wall of the aerator shell 1. A rubber ring 202 is fixedly connected to the lower part of the outer wall of the base 201. Multiple channels 203 are provided on the lower surface of the rubber ring 202. A flow guide rounded corner 205 is provided near the edge of the upper surface of the base 201. After falling into the bottom of the water body, the edge of the rubber ring 202 then adheres to the silt at the bottom of the water body. By setting the rubber ring 202, the contact area is increased, the adhesion with the silt is increased, and the aerator shell 1 is prevented from sinking into the silt.

[0042] like Figure 1 , 2 As shown in Figures 3, 4, and 5, the protective structure 3 includes a first base ring 301. Four first extension seats 302 are fixedly connected to the outer wall of the first base ring 301 in a rectangular arrangement. Each of the four first extension seats 302 has a first through hole 303 at its center on its upper surface. Connecting seats 304 are fixedly connected to the outer wall of the first base ring 301 between the four first extension seats 302. Hanging rings 305 are fixedly connected to the upper surfaces of the four connecting seats 304. Carabiners 306 are fitted onto the upper ends of the four hanging rings 305. One end of each carabiner 306 is fixed... The device is fixedly connected to four branch pull ropes 307, with the other end of each branch pull rope 307 fixedly connected to a main pull rope 308. An arc-shaped filter screen 309 is fixedly connected to the upper surface of the first base ring 301. Four carabiners 306 are respectively hung on the hanging rings 305. The aerator shell 1 is lowered into the water body that requires oxygen supply through the main pull rope 308. The arc-shaped filter screen 309 blocks aquatic plants and large particles. The hoisting system consisting of the hanging rings 305, carabiners 306, branch pull ropes 307, and main pull rope 308 enables stable lifting and maintenance of the equipment.

[0043] An air outlet pipe 9 is provided at the lower end of the rubber pad 1011. The air outlet pipe 9 passes through the inner wall of the aerator shell 1 and extends to one side of the aerator shell 1. A second flange 8 is fixedly connected to one end of the second flange 8. A first flange 7 is provided at the other end of the second flange 8. An air inlet pipe 5 is fixedly connected to the other end of the first flange 7. An external high-pressure air source enters the air outlet pipe 9 through the air inlet pipe 5 and the connection between the first flange 7 and the second flange 8. The gas enters the interior of the aerator shell 1 along the air outlet pipe 9 and flows upward.

[0044] The upper surface of the protective structure 3 has four bolts 11 arranged in a rectangle. The four bolts 11 pass through the upper surface of the protective structure 3 and the upper surface of the multiple cyclone structures 4 in sequence, and the ends are threaded to the center of the upper surface of the base 6, so as to fix the protective structure 3, the multiple cyclone structures 4 and the aerator shell 1 through the four bolts 11.

[0045] A counterweight is fixedly connected to the center of the lower end face of the aerator shell 1. The counterweight at the bottom of the aerator shell 1 ensures that the bottom sinks quickly, so that the protective structure 3 at the top is always in an upward position.

[0046] Working principle: During operation, the external high-pressure air source enters the air outlet pipe 9 through the air inlet pipe 5 and the connection between the first flange 7 and the second flange 8. The gas enters the aerator shell 1 along the air outlet pipe 9 and flows upward. The base 201 is threaded to the bottom of the aerator shell 1 by the threaded groove 204 at the upper end. Four carabiners 306 are hung on the hanging rings 305 respectively. The aerator shell 1 is lowered into the water body that requires oxygen supply by the main pull rope 308. During the lowering process, the counterweight at the bottom of the aerator shell 1 ensures that the bottom sinks quickly, so that the top protective structure 3 is always in an upward position. At this time, the rubber ring 202 wraps around the aerator shell 1 and the air inlet pipe 5 during the descent. After falling to the bottom of the water body, the edge of the rubber ring 202 then adheres to the silt at the bottom of the water body. The rubber ring 202 increases the contact area and the adhesion to the silt, preventing the aerator shell 1 from sinking into the silt.

[0047] When the air pump is restarted to supply air, the pressure plate 1010 of the auxiliary structure 10 first overcomes the preload of the spring 1008, causing the shaft 1007 to move axially upward along the central through-hole of the multiple swirling structures 4. The outer tube 1012 provides support and guidance. The shaft 1007 drives the bottom thick rod 1009 and the pressure plate 1010 to move upward simultaneously, causing the rubber pad 1011 at the lower end of the pressure plate 1010 to disengage from the sealing contact with the air outlet, forming a gap for air flow. Meanwhile, the umbrella-shaped metal seat 1001 at the upper end moves upward, which in turn drives the center position of the rubber skirt 1005 at the edge to move upward first, through the lever of the multiple annular protrusions 1006. The rod design makes it easier for the rubber skirt 1005 to open in the water. After passing through the opening, the gas enters the multi-layer cyclone structure 4. Through the spiral flow channel formed by multiple guide plates 404 on the inner side of the second base ring 401, it is forcibly cut and given high-speed rotational kinetic energy, forming a strong rotating jet that enters the inner side of the protective structure 3. The rotating water flow diffuses in all directions under the action of centrifugal force and is discharged into the water body after being filtered by the arc-shaped filter screen 309. In this process, the intense shearing action between the high-speed airflow and the water body breaks the gas into micron-sized bubbles, which greatly improves the oxygen mass transfer efficiency. At the same time, the rotating water flow generates a downward suction effect, which drives the bottom oxygen-deficient water body to circulate upward.

[0048] When the external air supply stops, the spring 1008 releases its stored potential energy, pushing the umbrella-shaped metal seat 1001 and shaft 1007 to quickly reset. The pressure plate 1010 drives the rubber pad 1011 to press the output end of the air outlet pipe 9 again to form a first-level rigid seal. At the same time, the rubber skirt 1005 on the outer wall of the umbrella-shaped metal seat 1001 uses the annular protrusion 1006 on its lower end face to fit tightly with the upper end face of the cyclone structure 4 to form a second-level flexible seal. This dual-level sealing structure uses water pressure to achieve a sealing effect that gets tighter and tighter, completely blocking the path of water backflow along the air outlet pipe 9 and preventing water from entering the equipment and increasing its weight.

[0049] The protective structure 3 uses an arc-shaped filter 309 on the outside of the first base ring 301 to block aquatic plants and large foreign objects. The hoisting system, consisting of a hanging ring 305, a carabiner 306, and branch ropes 307 and a main rope 308, enables stable lifting and maintenance of the equipment, thereby achieving efficient, clog-proof, and maintenance-free in-situ water body ecological restoration.

[0050] After the aeration is completed, the equipment is lifted by the main pull rope 308 and enters the water flow through the channel 203 at the bottom of the rubber ring 202. This prevents the rubber ring 202 from adhering to the silt and making lifting difficult. Due to its own characteristics, it rises with the aerator shell 1. If it loses power and falls slightly during the rising process, the rubber ring 202 will open like a jellyfish to reduce the descent. After being lifted up, the base 201 can be removed to complete one cycle of water body ecological aeration and restoration.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oxygen supply device for water body ecological restoration, comprising an aerator shell (1), characterized in that: The aerator shell (1) has a chassis structure (2) at the lower end. Four bases (6) are arranged in a rectangular pattern on the upper side of the outer wall of the aerator shell (1). Multiple cyclone structures (4) are arranged vertically on the upper end of the aerator shell (1). A protective structure (3) is provided on the upper end of the cyclone structure (4) at the upper end. An auxiliary structure (10) is provided on the upper end of the cyclone structure (4) on the inner side of the protective structure (3). The auxiliary structure (10) includes an umbrella-shaped metal seat (1001). A rubber skirt (1005) is fixedly connected to the outer wall of the umbrella-shaped metal seat (1001) at the upper end of the cyclone structure (4). Multiple concentric annular protrusions (1006) are provided on the lower end surface of the rubber skirt (1005) at the upper end of the cyclone structure (4). A shaft (1007) is fixedly connected to the center of the lower end surface of the rubber skirt (1005). The shaft (1007) passes through the upper end surface of multiple cyclone structures (4) and extends to the lower end of multiple cyclone structures (4). A thick rod (1009) is fixedly connected to the end of the shaft (1009). A pressure plate (1010) is fixedly connected to the lower end surface of the pressure plate (1010). A rubber pad (1011) is fixedly connected to the lower end surface of the pressure plate (1010). A spring (1008) is sleeved on the outer side of the shaft (1007) at the upper end of the thick rod (1009).

2. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: A bracket (1004) is sleeved on the outer side of the upper shaft (1007) of the spring (1008). A third base ring (1002) is fixedly connected to the outer wall of the bracket (1004). Four third extension seats (1003) are fixedly connected in a rectangular arrangement on the outer wall of the third base ring (1002). An outer tube (1012) is sleeved on the outer side of the thick rod (1009). The outer tube (1012) is fixedly connected to the lower end face of the bracket (1004).

3. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: Taking one of the cyclone structures (4) as an example, the cyclone structure (4) includes a second base ring (401), the outer wall of the second base ring (401) is arranged in a rectangular shape and fixedly connected with a second extension seat (402), the upper end of each of the four second extension seats (402) is provided with a second through hole (403), a plurality of guide plates (404) are fixedly connected to the inner wall of the second base ring (401), and a cylindrical seat (405) is fixedly connected between the plurality of guide plates (404).

4. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: The chassis structure (2) includes a base (201). A threaded groove (204) is provided at the center of the upper end face of the base (201). The threaded groove (204) is threaded onto the lower part of the outer side wall of the aerator shell (1). A rubber ring (202) is fixedly connected to the lower part of the outer side wall of the base (201). Multiple channels (203) are provided on the lower end face of the rubber ring (202). A flow guide rounded corner (205) is provided on the upper end face of the base (201) near the edge.

5. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: The protective structure (3) includes a first base ring (301). Four first extension seats (302) are fixedly connected in a rectangular arrangement on the outer wall of the first base ring (301). A first through hole (303) is opened at the center of the upper end face of each of the four first extension seats (302). A connecting seat (304) is fixedly connected to the outer wall of the first base ring (301) between the four first extension seats (302). A hanging ring (305) is fixedly connected to the upper end face of each of the four connecting seats (304). A carabiner (306) is fitted on the upper end of each of the four hanging rings (305). A pull rope (307) is fixedly connected to one end of each of the four carabiners (306). A main pull rope (308) is fixedly connected to the other end of each of the four pull ropes (307). An arc-shaped filter screen (309) is fixedly connected to the upper end face of the first base ring (301).

6. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: An air outlet pipe (9) is provided at the lower end of the rubber pad (1011). The air outlet pipe (9) passes through the inner wall of the aerator shell (1) and extends to one side of the aerator shell (1). A second flange (8) is fixedly connected to the end of the second flange (8). A first flange (7) is provided at the other end of the second flange (8). An air inlet pipe (5) is fixedly connected to the other end of the first flange (7).

7. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: The upper surface of the protective structure (3) is provided with four bolts (11) arranged in a rectangle. The four bolts (11) pass through the upper surface of the protective structure (3) and the upper surface of the multiple cyclone structures (4) in sequence, and their ends are threaded to the center of the upper surface of the base (6).

8. The oxygen supply device for water body ecological restoration according to claim 1, characterized in that: A counterweight is fixedly connected to the center of the lower end face of the aerator shell (1).

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