Sewage detection structure
By combining a rotating float structure and a magnetic Hall sensor, high-precision sewage level detection is achieved, solving the problems of insufficient detection accuracy and easy damage in existing technologies. It is suitable for sewage environments with small differences between high and low liquid levels.
Patent Information
- Application Number
- CN202423093828.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing wastewater detection structures have limited detection accuracy, especially when the difference between high and low liquid levels is small. Furthermore, traditional structures are easily damaged by impurities such as silt in wastewater, and the sensing components of electronic sensors are easily adhered to by wastewater, leading to false triggering.
It adopts a rotating float structure, combined with non-contact sensing of magnets and Hall sensors. The high and low liquid levels are detected by the rotation of the float driving the magnet. The Hall sensors are divided into high and low liquid level sensors to detect the sewage liquid level at three different heights.
It improves detection accuracy, is suitable for scenarios with small differences between high and low liquid levels, prevents moving structures from being stuck or damaged by mud and sand, and avoids false triggering of sensors.
Smart Images
Figure CN223485258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater detection, and more specifically to a wastewater detection structure. Background Technology
[0002] Existing wastewater testing infrastructure has the following drawbacks:
[0003] 1. The detection accuracy of the upper and lower float type liquid level detection structure is limited, and it is not suitable for scenarios with small differences between high and low liquid levels;
[0004] 2. Traditional liquid level detection structures are mostly used to detect clean water or liquids with low impurity content, and are not suitable for sewage detection. When detecting sewage, the moving structure is easily damaged or stuck by impurities such as mud, sand, and hair.
[0005] 3. When electronic sensors detect sewage, the sensing component becomes unable to recognize the sewage after it adheres to the sewage, and the system will keep triggering. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wastewater detection structure.
[0007] The technical solution of this utility model is as follows:
[0008] A wastewater detection structure includes a mounting plate, a float support rod, and a liquid level float. A stopper screw is installed at the lower right corner of the mounting plate, and the stopper screw is rotatably connected to the middle of the float support rod. A liquid level float is fixed at the bottom of the float support rod, and a magnet is installed at the top of the float support rod. A low liquid level Hall sensor is installed at the upper right corner of the mounting plate. A high liquid level Hall sensor is installed on the left side of the mounting plate. The low liquid level Hall sensor and the high liquid level Hall sensor are connected to a controller via wires, and the controller is connected to a water pump via wires.
[0009] The mounting plate is equipped with a low liquid level limit block located directly below the screw.
[0010] The mounting plate is equipped with a high liquid level limit block located below the high liquid level Hall sensor.
[0011] The mounting plate is fixed to the side wall of the water tank.
[0012] The liquid level float is a hollow plastic ball.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This structure can be made using 3D printing or assembled using sheet metal structures, floats, magnets, and Hall sensors. It is simple to process and assemble, and has low cost.
[0015] 2. This structure has good stability. When detecting sewage containing silt, the rotating structure and sensor do not come into contact with the sewage and will not be stuck or damaged by silt.
[0016] 3. This structure uses a hollow plastic liquid level float, which can be applied to situations where the difference between high and low liquid levels is small, and will not produce jump results during detection. Attached Figure Description
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure at the liquid level float.
[0019] Figure 3 This is a schematic diagram of a low liquid level state;
[0020] Figure 4 This is a schematic diagram of a high liquid level state.
[0021] 1. Mounting plate, 2. Liquid level float, 3. Plug screw, 4. Magnet, 5. Low liquid level Hall sensor, 6. High liquid level Hall sensor, 7. High liquid level limit block, 8. Low liquid level limit block, 9. Water tank, 10. Water pump, 11. Float support rod. Detailed Implementation
[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Example 1
[0024] like Figure 1 and Figure 2 The wastewater detection structure shown includes a mounting plate 1, a float support rod 11, and a liquid level float 2. A stopper screw 3 is installed at the lower right corner of the mounting plate 1, and the stopper screw 3 is rotatably connected to the middle of the float support rod 11. The liquid level float 2 is fixed at the bottom of the float support rod 11, and a magnet 4 is installed at the top of the float support rod 11. A low liquid level Hall sensor 5 is installed at the upper right corner of the mounting plate 1. A high liquid level Hall sensor 6 is installed on the left side of the mounting plate. The low liquid level Hall sensor and the high liquid level Hall sensor are connected to a controller via wires, and the controller is connected to a water pump via wires.
[0025] The mounting plate 11 is provided with a low liquid level limit block 8 located directly below the screw.
[0026] The mounting plate is equipped with a high liquid level limiting block 7 located below the high liquid level Hall sensor.
[0027] A gap is left at the connection between the plug screw 3 and the float support rod 11, allowing the plug screw 3 to rotate around a center. The entire liquid level detection structure is installed inside the water tank 9.
[0028] like Figure 3 In the initial state shown, the liquid level float 2 falls naturally under gravity and is limited by the low liquid level limit block 8. At this time, the magnet 4 on the liquid level float 2 is just near the low liquid level Hall sensor 5. The low liquid level Hall sensor 5 is triggered. At this time, the water pump 10 does not work to avoid insufficient sewage in the water tank 9, which would cause the water pump 10 to run dry and damage the water pump.
[0029] like Figure 4 As shown, when the water level in the tank 9 rises, the float ball 2 rotates with the rise in water level. When the water level reaches a certain level, the magnet 4 moves away from the Hall sensor 5 and is out of the sensing range. At this time, the Hall sensor 5 is not triggered, and the water pump 10 starts at a low speed to pump away the sewage.
[0030] When the water level in the tank 9 rises to the point of almost overflowing, the level float 2, carrying the magnet, rotates to the vicinity of the high level Hall sensor 6, triggering the high level Hall sensor 6. At this time, the water pump starts to pump water at a high speed to prevent sewage from overflowing. After reaching this position, as the sewage continues to increase, the level float 2 is limited by the high level limit block 7 and will not continue to rotate, preventing the magnet 4 from leaving the sensing area of the high level Hall sensor 6 and preventing the water pump from reducing its speed.
[0031] principle:
[0032] This patent adopts a rotating float structure. The float rotates through a screw-type design. When the float rotates, it drives the magnet at the top to rotate. The sewage level is detected through non-contact sensing between the magnet and the Hall sensor. The Hall sensor is divided into high and low level sensors, which can detect sewage at three different heights.
[0033] Example 2
[0034] This patent offers significant improvements to the situation where the upper and lower float detection structures have poor accuracy and are not suitable for scenarios with small differences between high and low liquid levels.
[0035] This patent significantly improves upon the limitations of traditional detection structures, which are unsuitable for situations involving wastewater or sediment.
[0036] This patent addresses the issue of moving structures or detection components becoming undetectable when they are covered by sewage or silt during wastewater testing.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wastewater detection structure, characterized in that: The system includes a mounting plate, a float support rod, and a liquid level float. A stopper screw is installed at the lower right corner of the mounting plate, and the stopper screw is rotatably connected to the middle of the float support rod. A liquid level float is fixed to the bottom of the float support rod, and a magnet is installed at the top of the float support rod. A low liquid level Hall sensor is installed at the upper right corner of the mounting plate, and a high liquid level Hall sensor is installed on the left side of the mounting plate. The low liquid level Hall sensor and the high liquid level Hall sensor are connected to a controller via wires, and the controller is connected to a water pump via wires.
2. The wastewater detection structure according to claim 1, characterized in that: The mounting plate is equipped with a low liquid level limit block located directly below the screw.
3. The wastewater detection structure according to claim 1, characterized in that: The mounting plate is equipped with a high liquid level limit block located below the high liquid level Hall sensor.
4. The wastewater detection structure according to claim 1, characterized in that: The mounting plate is fixed to the side wall of the water tank.
5. The wastewater detection structure according to claim 1, characterized in that: The liquid level float is a hollow plastic ball.