KR20030029304A - a control apparatus for a wator level of a drain pump - Google Patents

Abstract

PURPOSE: A water level adjusting apparatus used in a drain pump is provided to prevent malfunction of the drain pump by precisely detecting an operating time of the drain pump based on a water level. CONSTITUTION: A plurality of electrode rods(22a,22b,22c) is vertically installed in a water reservoir(10) so as to detect a water level in the water reservoir(10). The electrode rods(22a,22b,22c) have lengths different from each other. A power supply section(30) is provided to supply power to the electrode rods(22a,22b,22c). A control section(40) generates a control signal when power is applied to the electrode rods(22a,22b,22c). A drain pump(50) is operated based on the control signal generated from the control section. An insulating member is accommodated in the electrode rods(22a,22b,22c).

Description

Level control device for a drainage pump {a control apparatus for a wator level of a drain pump}

The present invention relates to a water level control device for a drain pump, and more particularly to a water level control device for a drain pump to detect the water level with an electrode to prevent overflow, and to automatically control the drainage time of the drain pump. .

In general, the drain pump is a mechanical component having a function of sucking the remaining fluid in the underground or various tanks by the suction force of the impeller rotated by the power of the motor and pumped to the outside.

The conventional drainage pump is automatically operated according to the water level in the tank to adjust the water level or to perform the drainage function for water supply by a separate control unit.

Here, the drain pump installed in the water tank separately required a water level regulator for automatic drainage, and this water level control device as shown in Figure 1, and the buckle 15 which is linked up and down in accordance with the water level change in the water tank 10 and And a contact switch 16 connected to the buckle 15 to be turned on and off during lifting, and a controller 17 to turn on / off the drain pump 50 according to the on / off operation of the contact switch 16. It consists of.

Here, the bridle 15 and the contact switch 16 is connected by the connection member 14, such as the light weight of the room has a structure that interlocks with each other.

In addition, the buckle 15 is elevated as the water level in the water tank 10 rises, and then provides a tension force to the connecting member 14, thereby having a function of turning on / off the contact switch 16.

Therefore, when the fluid in the water tank 10 rises above a certain level, the bure 15 rises together, the contact switch 15 is turned on, and a signal is input to the control unit 17, and the control unit 17 drains the water. By operating the pump 50 to discharge the fluid in the water tank 10 to the outside, it is possible to automatically adjust the flow rate in the water tank (10).

The conventional water level control device for the drainage pump has a function of automatically operating the drainage pump according to the lifting operation of the beret, but the pump is not malfunctioned by the fluid flow in the tank, or the beret is not raised by the foreign matter in the tank. In this case, the water level could not be detected, and there was a problem that the fluid overflowed to the outside of the tank.

The present invention has been made in view of the above-described problems, the object is to provide a water level control device for the drain pump to accurately detect the drainage operation time of the drainage pump according to the water level in the tank to prevent the pump malfunction There is.

1 is a block diagram showing a conventional water level control device for the drain pump.

Figure 2 is a block diagram showing a water level control device for drainage pump according to the present invention.

3 is a perspective view of main parts of FIG. 2;

4 is a cross-sectional view taken along the line A-A of FIG.

Explanation of symbols on the main parts of the drawings

10: tank 21: inner conductor

22a, 22b, 22c: electrode

23: outer conductor 25: insulator

26: holding part 27: ground wire

29: fixing groove 30: power supply

40: control unit 50: drainage pump

In order to achieve the above object, the present invention provides a plurality of electrodes vertically spaced apart from each other vertically in a water tank, and a controller for outputting an operation control signal to a pump by sensing current when the electrodes are energized with each other. And a drain pump for pumping the fluid in the tank to the outside according to the control signal of the controller.

According to this configuration, the present invention is to operate the drain pump automatically only when the fluid in the tank contacts each of the electrode rods, so that the water level in the tank can be adjusted, thereby preventing the pump from malfunctioning.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Water level control device for drainage pump according to the present invention, as shown in Figures 2 to 4, are installed vertically with different lengths in the water tank 10, a plurality of electrode rods (22a, 22b, respectively) for detecting the water level, 22c), the power supply unit 30 for supplying power to the electrodes 22a, 22b, and 22c to flow current, and the electrode 22a, 22b, and 22c are energized to sense and control this energization. The control unit 40 for outputting a signal, and the drain pump 50 is operated on / off in accordance with the control signal output from the control unit 40.

In more detail, the electrode rods 22a, 22b, and 22c are installed vertically toward the lower side of the water tank 10 at different lengths, respectively, and maintain the current flow by the power supply unit 30, respectively.

The electrodes 22a, 22b, and 22c have an insulator 25 built in the middle so that the conductors inside and outside thereof are separated from each other. The electrodes 22a, 22b, and 22c are supplied with current from the power supply unit 30, and the outer conductor 23 is always energized. The inner conductor 21 is insulated from the outer conductor 23 by the insulator 25.

The control unit 40 detects that each of the electrode rods 22a, 22b, and 22c are energized with each other as they come into contact with the fluid present in the water tank 10, and is controlled by a motor on the drain pump 50 side according to the detection signal. It has a function to output a signal.

In addition, since the drain pump 50 has the same structure and operation as the conventional one, a detailed description thereof will be omitted, but the on / off operation is performed according to the control signal of the controller 40.

And, each electrode (22a, 22b, 22c) is provided with a length adjusting means for adjusting the vertical length of the electrode (22a, 22b, 22c), the length adjusting means is the outer peripheral surface of the electrode (22a, 22b, 22c) A plurality of fixing grooves 29 are formed to each other at appropriate intervals, and is composed of a grip portion 26 that is selectively elastically coupled to one of the fixing grooves (29).

The gripping portion 26 has an elastic force in the form of a forceps, and has a function of receiving current from the power supply unit 30 and transferring current to the outer conductor 23 of the electrode rods 22a, 22b, and 22c.

Reference numeral 27 denotes a ground line connected to the inner conductors 21 of the electrodes 22a, 22b, and 22c, respectively, and outputting an energized state of the electrodes 22a, 22b, and 22c to the controller 40. .

The operation of the present invention having such a configuration is as follows.

As the fluid contacts the electrodes 22a, 22b, 22c provided in the water tank 10, the electrodes 22a, 22b, 22c are energized so that the energization signal is input to the controller 40, and then the controller 40 As a control signal is outputted to the drain pump 50 in the), the drain pump 50 is turned on to perform the drain function.

At this time, the electrodes 22a, 22b, 22c are energized only when the fluid is in contact with the electrode having the shortest length among the electrodes 22a, 22b, and 22c, that is, when the water level rises to a certain height. To output the energized signal.

Here, the electrode (22a, 22b, 22c) can be set to the water level of the water tank (10) to the desired height by using the length adjustment means, which is the gripper 26 to the outer peripheral surface of the electrode (22a, 22b, 22c) By coupling to one of the fixing grooves 29 formed in the height of the electrode (22a, 22b, 22c) can be selected.

Then, when the water level in the water tank 10 rises and the fluid contacts each electrode 22a, 22b, 22c, the inner conductor 21 of each electrode 22a, 22b, 22c by the fluid in the water tank 10 is carried out. Electric power is supplied to the control unit 40 through the ground wire 27.

Subsequently, the control unit 40 outputs a control signal to the drain pump 50 side only when all of the electrode rods 22a, 22b, and 22c transmit the energization signal, thereby turning on the drain pump 50 to perform the drainage operation. Will be performed.

The present invention described as described above is not limited to the above-described embodiments, but may be modified as many as possible without departing from the spirit and concept of the present invention. For example, the length adjusting means of the electrode rods 22a, 22b, and 22c may adopt a screw fastening method instead of a clamping method of the fixing groove 29 and the gripping portion 26.

The water level control apparatus for the drainage pump designed as described above is to automatically detect the water level in the tank to operate the drain pump, according to the present invention by operating the drain pump by detecting the water level in the tank with a simple structure Since it is possible to prevent the malfunction, as well as to adjust the height of the electrode has the effect of adjusting the water level to the desired height.

Claims (4)

A plurality of electrode rods 22a, 22b, and 22c installed vertically in different lengths in the water tank 10 to detect water levels, respectively; A power supply unit 30 for supplying power to the electrode rods 22a, 22b, and 22c to flow a current; A control unit 40 for sensing the energization and outputting a control signal as the electrodes 22a, 22b, 22c are energized; Water level control device for a drain pump, characterized in that provided with a drain pump (50) on / off operation in accordance with the control signal output from the control unit (40). The water level control for the drainage pump according to claim 1, further comprising a length adjusting means for adjusting the lengths of the electrodes 22a, 22b, and 22c to adjust the water level in the water tank 10. Device. The method of claim 2, wherein the length adjusting means is a plurality of fixing grooves 29 are formed in the outer peripheral surface of the electrode rods (22a, 22b, 22c), respectively, a suitable distance from each other, One or more gripping portions 29 may be elastically coupled to the fixing grooves 29, and a gripping portion 26 may transfer current supplied from the power supply unit 30 to the outside of the electrode rods 22a, 22b, and 22c. The water level control device for the drainage pump, characterized in that. According to claim 1, wherein the electrode (22a, 22b, 22c) is an insulator 25 embedded therein is separated into an outer conductor 23 and the inner conductor 21, The drain pump, characterized in that the ground wire 27 for transmitting the energized state of each electrode (22a, 22b, 22c) to the control unit 40 is connected to the inner conductor 21 of the electrode (22a, 22b, 22c), respectively. Water level control device.