CN-224231042-U - Anti-interference liquid level sensor

Abstract

The utility model relates to the technical field of liquid level sensors and discloses an anti-interference liquid level sensor, which comprises a liquid level sensor, wherein the top end of the liquid level sensor is fixedly connected with a connecting wire, a main body frame is fixedly sleeved on the circular surface of the liquid level sensor, two ends of the main body frame are fixedly connected with bars, the top of the main body frame is provided with a mounting hole in a penetrating way, a shaft lever is rotatably connected to the main body frame, the signal output stability can be obviously improved through the integral design, the duration of liquid level fluctuation can be greatly shortened by means of a fluctuation attenuation system in an auxiliary device, when the liquid level fluctuates, the system can actively absorb and dissipate fluctuation energy, so that the liquid level can quickly recover to a stable state, the situation that the sensor frequently triggers signals due to the liquid level fluctuation is reduced, and compared with the problem of unstable measurement value in the prior art, the design can improve the stability of the output signal of the sensor, and provide reliable data support for accurately judging the liquid level state of the system.

Inventors

• DU TIEJUN

Assignees

• 西安铭朗控制技术有限公司

Dates

Publication Date

20260512

Application Date

20250626

Claims (6)

1. 1. The anti-interference liquid level sensor comprises a liquid level sensor (1) and is characterized in that a connecting wire (2) is fixedly connected to the top end of the liquid level sensor (1), a main body frame (3) is fixedly sleeved on the annular surface of the liquid level sensor (1), bars (31) are fixedly connected to the two ends of the main body frame (3), a mounting hole (4) is formed in the top of the main body frame (3) in a penetrating mode, a shaft rod (5) is rotatably connected to the main body frame (3), and a swinging cross rod piece (6) is fixedly connected to the shaft rod (5).
2. 2. The anti-interference liquid level sensor of claim 1, wherein the bottom surface of the main body frame (3) is symmetrically and fixedly connected with an arc-shaped connecting rod (7), one end, far away from the main body frame (3), of the arc-shaped connecting rod (7) is fixedly connected with a steady flow cylinder (8), and through holes (9) are formed in the steady flow cylinder (8) at equal intervals.
3. 3. The anti-interference liquid level sensor according to claim 2, wherein a floating column (10) is connected in a sliding manner in the steady flow cylinder (8), a transmission rod (11) is connected to an upper inner cavity of the floating column (10) in a rotating manner, a sleeve (12) is fixedly connected to the transmission rod (11), and the sleeve (12) is connected to a bar (31) in a rotating manner.
4. 4. The anti-interference liquid level sensor according to claim 1, wherein an auxiliary piece (13) is fixedly connected to the swinging cross bar piece (6), and a magnet (14) is fixedly connected to the auxiliary piece (13).
5. 5. The anti-interference liquid level sensor according to claim 1, wherein the main body frame (3) is fixedly connected with a Hall switch (15).
6. 6. The anti-interference liquid level sensor according to claim 3, wherein the arc-shaped connecting rod (7), the steady flow cylinder (8), the through hole (9), the floating column (10), the transmission rod (11) and the sleeve (12) are combined into a group, and two groups are arranged.

Description

Anti-interference liquid level sensor Technical Field The utility model relates to the technical field of liquid level sensors, in particular to an anti-interference liquid level sensor. Background In the modern fields of industrial automation, intelligent water affairs, environmental monitoring and the like, the liquid level sensor is used as core equipment for liquid level monitoring, and the accuracy and reliability of measurement of the liquid level sensor directly relate to the stability and safety of system operation. In petrochemical industry, accurate measurement of storage tank liquid level is the key of guaranteeing production flow smoothness, avoiding material overflow to cause the incident, in sewage treatment plant, accurate control of aeration tank liquid level helps optimizing treatment process, improves sewage treatment efficiency, in intelligent house scene, water tank liquid level monitoring provides data support for domestic water management. Although the liquid level sensor is widely applied, the performance of the liquid level sensor is still limited by various factors under actual working conditions. When the liquid level in the container is measured by the liquid level proximity sensor, liquid level fluctuation is easily caused by factors such as liquid flow, equipment vibration, pipeline pressure change and the like. Such dynamic fluctuations cause the liquid level sensor to capture liquid signals in advance, resulting in measured values that are higher than the actual liquid level, causing erroneous decisions. Taking an adjusting tank of a sewage treatment plant as an example, the water flow impact generated by starting and stopping a water pump can lead the liquid level to severely fluctuate, if a liquid level sensor misjudges a high liquid level, the subsequent treatment equipment is in overload operation, and even equipment failure is caused; In addition, the continuous fluctuation of the liquid level can also cause the frequent triggering signal of the sensor, the output measurement value is in an unstable state, and the accurate judgment of the liquid level by the system is seriously interfered. Most liquid level sensors in the current market lack effective anti-interference mechanisms, false signals caused by fluctuation cannot be filtered rapidly, meanwhile, special components capable of assisting the liquid level sensors to shorten fluctuation time and realize rapid and stable monitoring are not equipped in the prior art, and in a high-level water tank of an urban water supply system, the liquid level sensors are difficult to output reliable data due to fluctuation of the liquid level caused by water flow change in a water peak period, so that accuracy of water supply scheduling is affected, and water resource waste or partial water supply deficiency and the like are caused. Therefore, developing new technologies and auxiliary components capable of overcoming the interference of liquid level fluctuation and improving the measurement stability has become an important subject to be solved in the field of current liquid level sensors. Therefore, we propose an anti-interference liquid level sensor to solve the above problems. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides an anti-interference liquid level sensor to solve the problems in the background art. (II) technical scheme In order to achieve the purpose, the anti-interference liquid level sensor comprises a liquid level sensor, wherein the top end of the liquid level sensor is fixedly connected with a connecting wire, a main body frame is fixedly sleeved on the circular surface of the liquid level sensor, two ends of the main body frame are fixedly connected with bars, the top of the main body frame is provided with a mounting hole in a penetrating mode, a shaft lever is rotatably connected to the main body frame, and a swinging cross bar member is fixedly connected to the shaft lever. Preferably, the arc-shaped connecting rods are symmetrically and fixedly connected to the bottom surface of the main body frame, one ends of the arc-shaped connecting rods, which are far away from the main body frame, are fixedly connected with steady flow cylinders, and through holes are formed in the steady flow cylinders at equal intervals. Preferably, the steady flow barrel is slidably connected with a floating column, an inner cavity on the floating column is rotationally connected with a transmission rod, a sleeve is fixedly connected on the transmission rod, and the sleeve is rotationally connected on the bar. Preferably, the swing transverse rod piece is fixedly connected with an auxiliary piece, and the auxiliary piece is fixedly connected with a magnet. Preferably, the main body frame is fixedly connected with a hall switch. Preferably, the arc-shaped connecting rod, the steady flow cylinder, the through hole, the floating column, the transmission rod