A trigger mechanism for a water level switch

Abstract

A trigger mechanism of a water level switch is provided. With the trigger mechanism of the water level switch adopted, equipment can be stable, automatic water inflow can be realized when water level is low, and water inflow can automatically stop when water level is high. The trigger mechanism includes a housing assembly, a water replenishing mechanism and a water closing mechanism; the housing assembly comprises a base, a connecting plate and a casing pipe from up to bottom, wherein the base is provided with a water replenishing hole and a water closing hole, and the connecting plate is provided with a containing hole; the water closing mechanism comprises a water closing push rod, a floating pendulum and a floater, wherein the water closing push rod is arranged in the water closing hole, and the floater is arranged in the casing pipe; and the water replenishing mechanism comprises a water replenishing push rod, a weight pendulum, a wire rope, a wire ring and a pull rope, wherein the water replenishing push rod is arranged in the water replenishing hole, and the wire loop is connected to the bottom of the casing pipe through the pull rope. The trigger mechanism of the water level switch of the invention has the advantages of simple structure, light weight, no power and reliable operation; the trigger mechanism can replace existing liquid level switches except for liquid level gauges and at the same time has a unique surface self-cleaning function, and can make many kinds of switches move or directly make a valve move; and the trigger mechanism can be combined with other control elements so as to realize a variety of practical functions.

Description

technical field [0001] The invention relates to the field of water level control, in particular to the improvement of the trigger mechanism of the water level switch. Background technique [0002] At present, most of the switches used on the market can be divided into the following types in terms of action forms: 1), early pull switch; 2), flip switch installed on the wall; 3), flip switch, that is, circuit breaker; 4 ), button-type touch switch, 5), rotary switch, or switch. Its function is usually to form a normally open or normally closed state. [0003] In the field of water level control, it is generally in a weak current state, and the specific application methods of the water level switch are generally as follows: [0004] 1) Float type liquid level switch (immersion type), its wire circuit is always submerged in water, and its safety factor is low; at the same time, the wire drifts with the water flow, so it is impossible to install the mixer in the pool; secondly,...

AI Technical Summary

Problems solved by technology

[0004] 1) Float type liquid level switch (immersion type), its wire circuit is always submerged in water, and its safety factor is low; at the same time, the wire drifts with the water flow, so it is impossible to install the mixer in the pool; secondly, the heavy weight in the float ball The ball requires that the fluctuation of the liquid level should not be too large; in addition, due to the weight of the wire itself, the control range should not be too large

[0005] 2) Ultrasonic liquid level gauge (on-liquid type), which requires external power supply, secondary control and a better operating environment, has disadvantages such as uneconomical and high requirements for users

[0006] 3), the pressure switch (on-liquid type), the setting is relatively cumbersome, and secondary control is required

[0007] 4) The electrode type liquid level switch (immersion type) requires secondary power supply and secondary control, and the pole is in the water, which is extremely unsafe to use;

[0010] However, after actual use, people found that the case still has the following problems: 1) When the water level is low, the suspender and the suspender always maintain a pulling force on the tail of the switch handle, which makes the switch handle extremely prone to irreversible deformation or breakage , thereby greatly reducing the service life and reliability of the equipment; 2) Although there are heavy objects under the suspension and suspension, that is, anti-tangle objects, the suspension and suspension will still drift with the water flow, resulting in switch errors Opening seriously affects the reliability of the equipment; 3) In this case, as long as the water level is lower than the maximum water level, the suspension will pull the switch handle and start to enter water; on the one hand, if the water outlet speed of the water tank is lower than the pump inlet If the water speed is high, it is easy to cause the water level to be super high; on the other hand, the continuous operation of the pump also brings a huge load to the equipment, which greatly reduces the service life of the equipment.

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