Aerator for freshwater pond culture

Abstract

The utility model belongs to the field of freshwater pond culture, and particularly relates to a freshwater pond culture aerator which comprises an L-shaped supporting plate. A mounting plate is fixedly connected to the top of the L-shaped supporting plate, a driving motor is arranged on the front face of the mounting plate, a transmission rod is fixedly connected to the output end of the driving motor, and a driving assembly is connected to one end of the transmission rod; the driving assembly comprises a toothed shaft A fixed to one end of the transmission rod, the toothed shaft A is in transmission connection with a toothed shaft B through a toothed belt, and a directional hole is formed in the toothed shaft B; through the toothed belt transmission design of a toothed shaft A and a toothed shaft B in the driving assembly, the synchronous rotation function of a stirring ring and a long oxygen conveying pipe is achieved, the problem that the oxygen dissolving efficiency is low due to the fact that stirring and oxygen conveying positions of a traditional aerator are separated is solved, the stirring ring stirs water flow to enable oxygen to be evenly diffused, and the oxygen dissolving efficiency is improved in combination with micropore release of an oxygenation head.

Description

Technical Field

[0001] This utility model relates to the field of freshwater pond aquaculture, specifically a freshwater pond aerator. Background Technology

[0002] Pond aeration refers to increasing the dissolved oxygen content in pond water through various methods during the aquaculture process to improve water quality and promote the healthy growth of farmed organisms. Aeration is a crucial step in aquaculture, directly impacting aquaculture results and economic benefits.

[0003] In the prior art, such as in CN214546634U, a microcontroller-based aerator for aquaculture ponds is disclosed. It includes an aerator body, a first float sleeve, and a second float sleeve. The first float sleeve and the second float sleeve are stacked and both are fitted onto the outside of the aerator body. Connecting seats are screwed to both sides of the aerator body by fastening screws. The surface of the connecting seat is provided with a circular groove that matches the fastening screw. A motor is installed inside the connecting seat on the side opposite to the first float sleeve.

[0004] While the aforementioned patent effectively improves oxygenation by combining the spraying oxygenation method of the aerator itself with the water-dispersing oxygenation method of the water-dispersing wheel powered by the motor, the fish in the pond tend to gather at the oxygenation point during oxygenation. The agitation can injure the fish, and the sprayed oxygen is often too far from the dispersing point, causing the oxygen to float upwards in the water, resulting in low efficiency in oxygenation. Therefore, this paper proposes a freshwater pond aerator to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, during aeration, fish in the pond tend to gather at the aeration point. The stirring and agitation can injure the fish, causing damage. Furthermore, the aeration point is far from the agitation point, and the sprayed oxygen floats upwards in the water, resulting in low efficiency of aeration. This invention proposes a freshwater pond aerator.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The freshwater pond aerator of this utility model includes an L-shaped support plate; an mounting plate is fixedly connected to the top of the L-shaped support plate, a drive motor is provided on the front of the mounting plate, a transmission rod is fixedly connected to the output end of the drive motor, and a drive component is connected to one end of the transmission rod.

[0007] The drive assembly includes a toothed shaft A fixed to one end of a transmission rod. The toothed shaft A is connected to a toothed shaft B via a toothed belt. The toothed shaft B has an internal directional hole. A long oxygen delivery tube is fitted into the directional hole. A fixing sleeve is fitted onto the surface of the long oxygen delivery tube. Two cross-distributed stirring rings are fixed to the surface of the fixing sleeve. A fixing frame is rotatably connected to the surface of the long oxygen delivery tube above the fixing sleeve. A protective net covering the stirring rings is provided at the bottom of the fixing frame.

[0008] Preferably, an oxygenation pump is provided on the back of the mounting plate, and the oxygenation pump is connected to the long oxygen delivery pipe through an L-tube connecting pipe and a rotary joint. An oxygenation head is provided at the bottom end of the long oxygen delivery pipe.

[0009] Preferably, a horizontal plate is fixed to one side of the bottom of the mounting plate, and a support rod is provided on one side of the top of the horizontal plate, which is rotatably connected to the toothed shaft A. A rotating hole is provided on the other side for the long oxygen delivery tube to pass through. The outer side of the horizontal plate is fixed to the top of the fixing frame by a connecting rod.

[0010] Preferably, the inner wall of the directional hole is provided with a wear-resistant coating, and the long oxygen delivery pipe is clearance-fitted with the directional hole and can slide along the axial direction.

[0011] Preferably, the protective net is a stainless steel woven mesh, the edges of which are fixed to the bottom of the fixing frame by buckles, and the mesh size of the protective net is smaller than the minimum gap of the stirring ring.

[0012] Preferably, the rotary joint includes an outer ring and an inner ring, the outer ring is connected to the connecting pipe flange, and the inner ring is welded to the top of the long oxygen pipeline and can rotate relative to the outer ring at a certain angle.

[0013] The advantages of this utility model are:

[0014] 1. This utility model achieves synchronous rotation of the stirring ring and the long oxygen delivery pipe through the toothed belt drive design of the toothed shaft A and toothed shaft B in the drive assembly. This solves the problem of low dissolved oxygen efficiency caused by the separation of stirring and oxygen delivery positions in traditional aerators. The stirring ring agitates the water flow to make oxygen diffuse evenly. Combined with the micropore release of the oxygenation head, the dissolved oxygen efficiency is improved.

[0015] 2. This utility model achieves the safety protection function for fish and shrimp through the structural design of wrapping the stirring ring with a protective net, and solves the problem of fish being accidentally injured by rotating parts. The mesh size of the stainless steel woven net is smaller than the gap of the stirring ring, which physically prevents fish and shrimp from getting close and reduces the damage rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the L-shaped support plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the drive component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective net structure of this utility model.

[0021] In the diagram: 1. L-shaped support plate; 2. Mounting plate; 3. Drive motor; 4. Transmission rod; 5. Drive assembly; 51. A toothed shaft; 52. Toothed belt; 53. B toothed shaft; 54. Orientation hole; 55. Long oxygen delivery pipe; 56. Fixing sleeve; 57. Stirring ring; 58. Fixing frame; 59. Protective net; 6. Horizontal plate; 7. Support rod; 8. Connecting rod; 9. Oxygen pump; 10. L-shaped pipe; 11. Connecting pipe; 12. Rotary joint; 13. Oxygenating head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1-4As shown, a freshwater pond aerator includes an L-shaped support plate 1; an mounting plate 2 is fixedly connected to the top of the L-shaped support plate 1, a drive motor 3 is provided on the front of the mounting plate 2, a transmission rod 4 is fixedly connected to the output end of the drive motor 3, and a drive assembly 5 is connected to one end of the transmission rod 4; the drive assembly 5 includes an A-toothed shaft 51 fixed to one end of the transmission rod 4, a B-toothed shaft 53 is connected to the A-toothed shaft 51 via a toothed belt 52, an directional hole 54 is provided inside the B-toothed shaft 53, a long oxygen delivery tube 55 is sleeved in the directional hole 54, a fixing sleeve 56 is sleeved on the surface of the long oxygen delivery tube 55, two cross-distributed stirring rings 57 are fixed on the surface of the fixing sleeve 56, a fixing frame 58 is rotatably connected above the surface of the long oxygen delivery tube 55, and a protective net 59 covering the stirring rings 57 is provided at the bottom of the fixing frame 58;

[0024] During operation, the L-shaped support plate 1 is formed by bending galvanized steel sheet and fixed to the edge of the pond with bolts. The mounting plate 2 is welded to the top of the L-shaped support plate 1. The drive motor 3 is fixed to the front of the mounting plate 2 through a flange. The transmission rod 4 is a stainless steel shaft and is connected to the output end of the drive motor 3 through a coupling. The toothed shaft A 51 is keyed to the end of the transmission rod 4 and drives the toothed shaft B 53 through the toothed belt 52. The directional hole 54 inside the toothed shaft B 53 is fitted with a nylon bushing. The long oxygen supply pipe 55 passes through the directional hole 54 and is connected to the toothed shaft B through the keyway. Shaft 53 rotates synchronously, and fixed sleeve 56 is welded to the surface of long oxygen supply pipe 55. Two stainless steel stirring rings 57, which cross at 60°, are bolted to both sides of fixed sleeve 56. Fixed frame 58 is sleeved on the upper part of long oxygen supply pipe 55 through bearing and a protective net 59 is welded to the bracket. The protective net 59 is a 304 stainless steel woven mesh with a mesh diameter of 3mm. The belt drive of toothed shaft A 51 and toothed shaft B 53 realizes the synchronization of stirring and oxygen supply, and improves dissolved oxygen efficiency. The protective net 59 isolates fish and shrimp from contact with stirring ring 57, reducing the damage rate.

[0025] Furthermore, an oxygen pump 9 is provided on the back of the mounting plate 2. The oxygen pump 9 is connected to the long oxygen delivery pipe 55 through the L pipe 10, the connecting pipe 11, and the rotary joint 12. An oxygenation head 13 is provided at the bottom of the long oxygen delivery pipe 55.

[0026] During operation, the oxygen pump 9 is an oil-free silent pump and is fixed to the back of the mounting plate 2 with bolts. The L-pipe 10 is a PVC rigid pipe and is connected to the oxygen outlet end of the oxygen pump 9 through a flange. The connecting pipe 11 is a pressure-resistant rubber hose and is connected to the top end of the long oxygen delivery pipe 55 through a rotary joint 12. The outer ring flange of the rotary joint 12 is fixed to the connecting pipe 11, and the inner ring is welded to the top end of the long oxygen delivery pipe 55 and has a built-in fluororubber sealing ring. The oxygenation head 13 is a porous ceramic structure and is connected to the bottom end of the long oxygen delivery pipe 55 through a thread. The rotary joint 12 enables continuous oxygen delivery when the long oxygen delivery pipe 55 rotates.

[0027] Furthermore, a horizontal plate 6 is fixed to one side of the bottom of the mounting plate 2. A support rod 7 is provided on one side of the top of the horizontal plate 6 and is rotatably connected to the toothed shaft 51 of A. A rotating hole is provided on the other side for the long oxygen delivery tube 55 to pass through. The outer side of the horizontal plate 6 is fixed to the top of the fixing frame 58 through the connecting rod 8.

[0028] During operation, the horizontal plate 6 is made of angle steel welded to the bottom of the mounting plate 2. The support rod 7 is a stainless steel round rod connected to the bottom of the A toothed shaft 51 via a ball bearing. A bronze bushing is embedded in the rotating hole for the long oxygen delivery tube 55 to pass through. The connecting rod 8 is an adjustable threaded rod and is fixed to the horizontal plate 6 and the fixing frame 58 via a locking nut. The support rod 7 and the rotating hole bushing ensure that the coaxiality error of the A toothed shaft 51 and the long oxygen delivery tube 55 is reduced, and the transmission stability is improved.

[0029] Furthermore, the inner wall of the directional hole 54 is provided with a wear-resistant coating, and the long oxygen delivery pipe 55 is clearance-fitted with the directional hole 54 and can slide along the axial direction;

[0030] During operation, the inner wall of the directional hole 54 is sprayed with a polyurethane wear-resistant coating, and the surface of the long oxygen delivery pipe 55 is chrome-plated. The wear-resistant coating extends the service life of the directional hole 54, and the sliding resistance of the chrome-plated long oxygen delivery pipe 55 is reduced.

[0031] Furthermore, the protective net 59 is a stainless steel woven mesh, and its edges are fixed to the bottom of the fixing frame 58 by buckles. The mesh size of the protective net 59 is smaller than the minimum gap of the stirring ring 57.

[0032] During operation, the edge of the protective net 59 is stamped and turned up and a slot is opened. The bottom of the fixing frame 58 is welded with matching buckles. The protective net 59 is fixed by pressing with the buckles, which is smaller than the gap between the blades of the stirring ring 57.

[0033] Furthermore, the rotary joint 12 includes an outer ring and an inner ring. The outer ring is connected to the flange of the connecting pipe 11, and the inner ring is welded to the top of the long oxygen pipeline 55 and can rotate 360° relative to the outer ring.

[0034] During operation, a graphite sealing ring is installed between the outer and inner rings of the rotary joint 12. The inner ring is fixed to the long oxygen delivery pipe 55 by a set screw, and the outer ring flange is bolted to the connecting pipe 11, allowing the long oxygen delivery pipe 55 to rotate continuously by 360°.

[0035] Working principle: The drive motor 3 drives the toothed shaft A 51 through the transmission rod 4, which drives the toothed belt 52 to make the toothed shaft B 53 rotate synchronously. The toothed shaft B 53 drives the long oxygen supply pipe 55 and the cross stirring ring 57 on the fixed sleeve 56 through the directional hole 54 to stir the water. At the same time, the oxygen pump 9 delivers oxygen to the long oxygen supply pipe 55 through the L pipe 10, the connecting pipe 11 and the rotary joint 12. The oxygen is released as microbubbles through the gradually narrowing micro-holes of the oxygen head 13. The rotating water flow of the stirring ring 57 prolongs the residence time of the bubbles. The protective net 59 wraps the stirring ring 57 to prevent fish and shrimp from contacting the rotating parts. The L-shaped support plate 1 and the horizontal plate 6 provide stable support, realizing the integrated operation of stirring and oxygenation and safety protection.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aerator for freshwater pond aquaculture, characterized in that: Includes an L-shaped support plate (1); the top of the L-shaped support plate (1) is fixedly connected to a mounting plate (2), the front of the mounting plate (2) is provided with a drive motor (3), the output end of the drive motor (3) is fixedly connected to a transmission rod (4), and one end of the transmission rod (4) is connected to a drive assembly (5). The drive assembly (5) includes an A toothed shaft (51) fixed to one end of the transmission rod (4). The A toothed shaft (51) is connected to a B toothed shaft (53) via a toothed belt (52). The B toothed shaft (53) has an internal directional hole (54). A long oxygen delivery tube (55) is sleeved inside the directional hole (54). A fixing sleeve (56) is sleeved on the surface of the long oxygen delivery tube (55). Two cross-distributed stirring rings (57) are fixed on the surface of the fixing sleeve (56). A fixing frame (58) is rotatably connected above the fixing sleeve (56) on the surface of the long oxygen delivery tube (55). A protective net (59) covering the stirring rings (57) is provided at the bottom of the fixing frame (58).

2. The freshwater pond aerator according to claim 1, characterized in that: An oxygen pump (9) is provided on the back of the mounting plate (2). The oxygen pump (9) is connected to the long oxygen delivery pipe (55) through the L pipe (10), the connecting pipe (11), and the rotary joint (12). An oxygen head (13) is provided at the bottom of the long oxygen delivery pipe (55).

3. The freshwater pond aerator according to claim 1, characterized in that: The mounting plate (2) has a horizontal plate (6) fixed on one side of its bottom. The top side of the horizontal plate (6) is provided with a support rod (7) which is rotatably connected to the toothed shaft (51) of A. The other side is provided with a rotating hole for the long oxygen delivery tube (55) to pass through. The outer side of the horizontal plate (6) is fixed to the top of the fixing frame (58) through a connecting rod (8).

4. The freshwater pond aerator according to claim 1, characterized in that: The inner wall of the directional hole (54) is provided with a wear-resistant coating, and the long oxygen delivery pipe (55) is clearance-fitted with the directional hole (54) and can slide along the axial direction.

5. The freshwater pond aerator according to claim 1, characterized in that: The protective net (59) is a stainless steel woven mesh, and its edge is fixed to the bottom of the fixing frame (58) by a buckle. The mesh size of the protective net (59) is smaller than the minimum gap of the stirring ring (57).

6. The aerator for freshwater pond aquaculture according to claim 2, characterized in that: The rotary joint (12) includes an outer ring and an inner ring. The outer ring is connected to the flange of the connecting pipe (11), and the inner ring is welded to the top of the long oxygen pipeline (55) and can rotate 360° relative to the outer ring.

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