Novel mechanical material level switch

Abstract

The invention discloses a novel mechanical material level switch, and belongs to the technical field of material level control. The switch includes a shell body, a micro motor, a micro switch, a rotary shaft and a detection paddle, wherein the shell body is internally provided with the micro motor, and the micro motor is connected with one end of the rotary shaft outside the shell body through a connecting sleeve, and meanwhile, the other end of the rotary shaft is connected with the detection paddle through a reset spring; the shell body is also provided with a high-light dichromatic status indicator lamp, and the high-light dichromatic status indicator lamp is connected to a status indicator amphenol connector positioned inside the shell body. The novel mechanical material level switch serves as a display with a light in a shell body section of a leakproofness and detection unit of a product testing part, and has the advantages of excellent properties of high temperature resistance, dust proofing, corrosion prevention, impact resistance and pressure resistance, a simple instrument structure, no complex electrical circuits, reliable operation, no requirement of debugging after installation, ease of maintenance, anti-interference of environmental influences, continuous long-time running and a wide application range.

Description

technical field [0001] The invention relates to the technical field of material level control, and more specifically relates to a novel mechanical material level switch. Background technique [0002] The anti-rotary material level switch is a device that uses mechanical rotation to monitor the material level. Usually, a micro motor is used as the drive device. The transmission shaft is connected to the clutch and the shaft end has blades; When the material touches the material, the blade rotates under the drive of the motor; when the material level rises and touches the blade, the detection device outputs a contact signal, and at the same time cuts off the power to stop the blade from rotating; when the material falls, the resistance of the blade disappears, and the detection The device returns to the original state by means of the torsion spring, and the blades resume rotation. For materials with different specific gravity, the torque can be adjusted. [0003] The reliabi...

AI Technical Summary

Problems solved by technology

[0003] The reliability of the mechanical level switch is theoretically higher than that of the capacitive level switch. However, in practical applications, it is found that if the dust concentration in the silo is high and the particle size is fine, the fine particles will easily enter the gap of the drive shaft and cause damage. The drive shaft will be jammed, and the drive shaft will give a false alarm signal due to the inability to rotate, resulting in the failure of material level monitoring

In addition, the existing mechanical level switch cannot visually see the working status of the instrument on site. At the same time, through detailed investigation and understanding, people have higher requirements for intelligence, such as: monitoring of ambient temperature, If the above functions can be combined to intelligently drive and further control electrical appliances, it can provide great convenience for people's lives, but the existing devices still have many deficiencies in function, and it is difficult to meet the above needs

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