Submersible pump capable of warning about water shortage
A technology of submersible pump and pump body, applied in the direction of pump, pump control, pump device, etc., can solve the problems of inconvenient observation and low water level.
Inactive Publication Date: 2014-11-12
HOMTON ENTERPRISES
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: to overcome the shortcomings of the above-mentioned technologies, and to provide a submersible pump that automatically alarms when the water level is too low and the submersible pump cannot absorb water for the inconvenience of observing the water level at the location of the submersible pump.
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Embodiment
[0014] The anhydrous alarm submersible pump that present embodiment provides, as figure 1 As shown, the inner wall of the water inlet 4 of the pump body 2 is provided with such image 3 In the circuit board shown, two pieces of copper sheets are interleaved on the circuit board to form a switch K1. Such as figure 2 As shown, one piece of copper skin is connected to the positive pole of the DC power supply; the other piece of copper skin is connected to the base of a triode; the collector and emitter of the triode are connected in series with a light-emitting diode, and then connected in series between the positive and negative poles of the DC power supply; A voltage dividing resistor and a filter capacitor are connected in series between the node of the other piece of copper skin and the base of the triode and the negative pole of the DC power supply.
[0015] Since the DC power source contacts the water body, a 9V battery is used in this embodiment as the DC power source t...
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The invention relates to a submersible pump, and belongs to the technical field of submersible pumps. The submersible pump comprises a pump body and a direct-current power supply. A circuit board is arranged at the water inlet of the pump body, and two copper sheets are arranged on the circuit board in a staggered mode. One copper sheet is connected with the positive electrode of the direct-current power supply, and the other copper sheet is connected with the base of an audion. The collector and the emitter of the audion are connected between the positive electrode and the negative electrode of the direct-current power supply in series after being connected with a light-emitting diode in series. A resistor is connected between the node of the other copper sheet and the base of the audion and the negative electrode of the direct-current power supply. According to the submersible pump, the circuit board arranged at the water inlet of the submersible pump monitors whether the submersible pump can suck water currently; if water makes contact with the two copper sheets, a circuit is switched on, an audion switch is in the on-state, the light-emitting diode is lightened, and then it is reminded that the current water level is normal and the submersible pump can suck the water normally.
Description
technical field [0001] The invention relates to a submersible pump and belongs to the technical field of submersible pumps. Background technique [0002] Submersible pumps need to be completely submerged in water to work. Especially household submersible pumps are placed in wells for use. Since the location where the submersible pump is placed is very inconvenient to observe, it is difficult to know the water level. Once the water level is too low, the water pump can not draw water, it will make the motor idle. The motor idling will make the motor overheat and may burn the motor. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the shortcomings of the above-mentioned technologies, and to provide a submersible pump that automatically alarms when the water level is too low and the submersible pump cannot absorb water for the inconvenience of observing the water level at the location of the submersible pump. ...
Claims
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IPC IPC(8): F04D13/08F04D15/00
Inventor 马巧根陈秋兰叶爱琴
Owner HOMTON ENTERPRISES