Aerator with built-in counter weight
By incorporating a counterweight tube and air inlet channel into the aerator, the problem of floating and tangling caused by increased buoyancy in suspended chain aerators is solved. This achieves a simple, low-cost aerator with anti-floating and anti-tangling effects, extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
Suspended chain aerators tend to float due to increased buoyancy caused by air chamber deformation, making them prone to floating and tangling. Existing external counterweight devices are bulky and complex, affecting aeration effect and efficiency.
Design a built-in counterweight aerator. By setting an internal counterweight pipe and air inlet channel in the air chamber, a counterweight effect is provided to prevent floating and tangling. The structure is simple and does not take up extra space.
It effectively prevents aerators from floating and tangling, reduces maintenance frequency and costs, extends service life, and keeps aeration performance unaffected.
Smart Images

Figure CN224077177U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of aeration equipment, and relates to an aerator, especially a built-in counterweight aerator. Background Technology
[0002] During the aeration process, the diaphragm of the air chamber of the suspended chain aerator will thicken under the aeration pressure, resulting in increased buoyancy. This can easily cause the entire suspended chain aerator to float due to excessive buoyancy, thereby reducing the aeration effect or even causing aeration failure. At the same time, the floating suspended chain aerator is also prone to floating within a certain range under the force of aeration, and is likely to get entangled with surrounding aerators.
[0003] In existing technologies, to prevent suspended chain aerators from floating due to air chamber compression deformation or excessive swaying, anti-entanglement counterweights are often installed on the outside of the aerator to increase its weight. However, this method often occupies a large area, affecting the aerator installation area in the wastewater treatment tank and impacting aeration efficiency. Furthermore, commonly used external counterweights are structurally complex, slow to assemble, and have low production efficiency. Therefore, it is necessary to provide an aerator that can effectively prevent air-filling and floating without occupying additional space in the wastewater treatment tank. Utility Model Content
[0004] The purpose of this utility model is to provide a built-in counterweight aerator to solve the technical problem in the prior art that requires accessories to be set on the outside of the aerator to prevent the aerator from floating and getting tangled.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:
[0006] An internal counterweight aerator includes an air chamber, a supporting aeration pipe, and an internal counterweight pipe. The two ends of the supporting aeration pipe are respectively connected to the air chamber, and the two ends of the air chamber are sealed by end caps. The internal counterweight pipe is disposed in the air chamber by end caps. The diameter of the internal counterweight pipe is smaller than the diameter of the inner wall of the air chamber, and an air inlet channel is formed between the internal counterweight pipe and the inner walls of the air chamber. The two ends of the supporting aeration pipe are respectively connected to the air inlet channels of the two end air chambers.
[0007] The end cap plug is provided with a counterweight mounting sleeve on one side inside the air chamber. The axis of the counterweight mounting sleeve coincides with the axis of the air chamber. The two ends of the built-in counterweight tube are respectively set in the air chamber through the counterweight mounting sleeve.
[0008] The outer wall of the air chamber is provided with a connector that communicates with the air inlet channel. Both ends of the supporting aeration pipe are respectively provided on the connector. The number of connectors is two or more, and they are evenly distributed along the extension direction of the air chamber.
[0009] The two ends of the built-in counterweight tube are sealed, and the counterweight tube is filled with counterweight powder.
[0010] The outer wall of the air chamber is also provided with a cylinder mounting seat for installing the aeration and cleaning mechanism. The cylinder mounting seat is located on the side of the air chamber that connects to the supporting aeration pipe and is arranged parallel to the supporting aeration pipe.
[0011] An anti-winding mounting seat is also provided on the outer wall of the air chamber, and the anti-winding mounting seat is located on the side of the air chamber away from the supporting aeration pipe.
[0012] The air inlet of the air chamber is located in the middle of the air chamber and on the top surface of the air chamber.
[0013] The beneficial effects of this utility model are as follows: By providing a built-in counterweight aerator, and by setting a built-in counterweight pipe in the air chamber of the aerator, and setting a uniform gap between the built-in counterweight pipe and the air chamber to form an air intake channel, this utility model can provide sufficient counterweight for the aerator while ensuring the aerator effect. This can effectively avoid the risk of the aerator floating or getting tangled due to increased buoyancy caused by thickening, thereby effectively reducing the frequency and cost of manual maintenance, reducing the occurrence of aerator damage due to untimely manual maintenance, and extending the service life of the aerator.
[0014] The technical solution provided by this utility model has a simple structure, good counterweight effect, and the built-in counterweight will not increase the floor space and volume of the aerator, nor will it affect the installation density of the aerator. It has low usage and maintenance costs and is suitable for widespread application in aeration devices. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the internal structure of the main body of this utility model;
[0016] Figure 2 This is a schematic diagram of the air chamber structure of this utility model;
[0017] Figure 3 for Figure 2 Sectional view at point AA;
[0018] Figure 4 for Figure 2 Sectional view at point BB;
[0019] Figure 5 This is a schematic diagram of the end cap plug structure of this utility model.
[0020] The markings in the diagram are as follows: 1. Air chamber, 2. Support aeration pipe, 3. Built-in counterweight pipe, 4. End cap plug, 5. Air inlet channel, 6. Counterweight mounting sleeve, 7. Connector, 8. Counterweight powder, 9. Cylinder mounting seat, 10. Anti-winding mounting seat, 11. Air inlet. Detailed Implementation
[0021] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.
[0022] like Figures 1 to 4 As shown, this utility model provides a built-in counterweight aerator, which includes an air chamber 1, a supporting aeration pipe 2 and a built-in counterweight pipe 3. The two ends of the supporting aeration pipe 2 are respectively connected to the air chamber 1, and the two together constitute the aerator body. The two ends of the air chamber 1 are sealed by end cap plugs 4, which is commonly an adhesive seal.
[0023] An internal counterweight tube 3 is installed inside the air chamber 1 via an end cap plug 4 to provide the necessary counterweight for the aerator body. Both ends of the internal counterweight tube 3 are sealed, and the counterweight tube is filled with counterweight powder 8. The counterweight powder 8 can be metal powder or other powders with high density, preferably iron powder. In this embodiment, the diameter of the internal counterweight tube 3 is smaller than the diameter of the inner wall of the air chamber 1, forming an air inlet channel 5 between it and the surrounding inner wall of the air chamber 1. Both ends of the supporting aeration tube 2 are respectively connected to the air inlet channels 5 of the two end air chambers 1.
[0024] Furthermore, such as Figure 2 , Figure 5 As shown, in order to facilitate the installation of the built-in counterweight tube 3, a counterweight mounting sleeve 6 is provided on the side of the end cap plug 4 located inside the air chamber 1. In this embodiment, the counterweight mounting sleeve 6 and the end cap plug 4 are integrally formed. In order to ensure that the air intake channel 5 is evenly distributed in the air chamber 1, the axis of the counterweight mounting sleeve 6 coincides with the axis of the air chamber 1. The two ends of the built-in counterweight tube 3 are respectively set in the air chamber 1 through the counterweight mounting sleeve 6.
[0025] In addition, to facilitate the connection between the supporting aeration pipe 2 and the air chamber 1, in this embodiment, a connector 7 communicating with the air inlet channel 5 is provided on the outer wall of the air chamber 1. The two ends of the supporting aeration pipe 2 are respectively set on the connector 7 through air inlets and communicate with the air chamber 1. The number of connectors 7 on each air chamber 1 is two or more. In this embodiment, four connectors 7 are set to correspond to the installation of four supporting aeration pipes 2. The four connectors 7 are evenly distributed along the extension direction of the air chamber 1. The air inlet 11 of the air chamber 1 is located in the middle of the air chamber 1 and on the top surface of the air chamber 1, so as to facilitate the uniform supply of compressed air to each supporting aeration pipe 2.
[0026] Furthermore, in order to add auxiliary functions such as self-cleaning and install auxiliary accessories such as self-cleaning mechanisms to the aerator in the later stage, so that it can better adapt to the usage scenario and meet the usage requirements, in this embodiment, a cylinder mounting seat 9 for installing the aeration cleaning mechanism is also provided on the outer wall of the air chamber 1. The cylinder mounting seat 9 is located on the side of the air chamber 1 that connects to the supporting aeration pipe 2 and is arranged parallel to the supporting aeration pipe 2.
[0027] Furthermore, to facilitate the deployment of air chamber 1 and for ease of maintenance, an anti-winding mounting seat 10 is provided on the outer wall of air chamber 1 in this embodiment. The anti-winding mounting seat 10 is located on the side of air chamber 1 away from the supporting aeration pipe 2. The anti-winding mounting seat 10 can be connected to the suspension chain, and can also be used to add an external counterweight to the aerator when the counterweight requirement is high and the built-in counterweight pipe 3 cannot meet the counterweight requirements, thereby further improving the adaptability of the aerator to different scenarios.
[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. An internally weighted aerator characterized by: It includes air chamber (1), support aeration pipe (2) and built-in counterweight pipe (3), both ends of the support aeration pipe (2) are communicated with air chamber (1) respectively, both ends of the air chamber (1) are sealed by end cap plug (4), the built-in counterweight pipe (3) is arranged in the air chamber (1) by end cap plug (4), the diameter of the built-in counterweight pipe (3) is less than the diameter of the inner wall of the air chamber (1), and the air inlet channel (5) is formed between the four around inner walls of the air chamber (1), both ends of the support aeration pipe (2) are communicated with the air inlet channel (5) of the air chamber (1) respectively.
2. An internally weighted aerator according to claim 1, wherein: The end cap plug (4) is provided with a counterweight mounting sleeve (6) on one side inside the air chamber (1), the axis of the counterweight mounting sleeve (6) coincides with the axis of the air chamber (1), and both ends of the built-in counterweight pipe (3) are arranged in the air chamber (1) through the counterweight mounting sleeve (6) respectively.
3. An internally weighted aerator according to claim 1, wherein: The outer wall of the air chamber (1) is provided with a connector (7) communicated with the air inlet channel (5), both ends of the support aeration pipe (2) are arranged on the connector (7) respectively, the number of the connector (7) is two or more, and the connector (7) is uniformly distributed along the extension direction of the air chamber (1).
4. An internally weighted aerator according to claim 1, wherein: Both ends of the built-in counterweight pipe (3) are sealed, and the counterweight pipe is filled with counterweight powder (8).
5. An internally weighted aerator according to claim 1, wherein: The outer wall of the air chamber (1) is further provided with a cylinder mounting seat (9) capable of mounting aeration cleaning mechanism, the cylinder mounting seat (9) is located on one side of the air chamber (1) connected with the support aeration pipe (2) and is arranged in parallel with the support aeration pipe (2).
6. An internally weighted aerator according to claim 1, wherein: The outer wall of the air chamber (1) is further provided with an anti-winding mounting seat (10), and the anti-winding mounting seat (10) is located on the side of the air chamber (1) away from the support aeration pipe (2).
7. An internally weighted aerator according to claim 1, wherein: The air inlet (11) of the air chamber (1) is arranged in the middle of the air chamber (1) and on the top surface of the air chamber (1).