CN201886358U - Device for controlling water quantity of water tank of water purifying device - Google Patents

Abstract

The utility model is a water volume control device for a water tank of water purification equipment, comprising a control circuit board, a solenoid valve sequentially connected by a water inlet pipe, a booster water pump, a filter element assembly and a pure water tank. The pure water tank is connected with a water outlet pipe and a faucet. A weighing sensor is arranged under the bottom surface of the water tank, and the weighing sensor is connected with the booster water pump and the electromagnetic valve through the control circuit board. Because the weighing sensor is placed outside the pure water tank and does not contact the water in the pure water tank, the utility model avoids hygienic problems such as bacteria or moss easily caused by placing the water level control device in the pure water tank and soaking for a long time; In addition, the sensor can sense the weight of the water tank without water, and can control the start of the booster pump when there is no water in the water tank, completely solving the problem of residual water. In addition, the manufacturing process of the load cell is simpler and more reliable than the ultrasonic water level sensor, and the price is also lower.

Description

Water volume control device for water tank of water purification equipment

technical field

The utility model relates to a water volume control device, in particular to a water volume control device for a water tank of a water purification equipment.

Background technique

Water purification equipment needs various methods to control the water volume of the water tank, especially the water level of the pure water tank. If it is not controlled, the water will overflow. At present, the components used to control the water volume on the market mainly include: electronic floats, mechanical floats or ultrasonic sensor water level gauges. Both electronic floats and mechanical floats need to be soaked in the water tank for a long time, which is prone to hygiene problems such as bacteria or moss, resulting in secondary pollution after filtration. In addition, when cleaning the water tank, it is easy for the user to distort or even break it, causing the water volume control of the machine to fail; and the supporting parts of the ultrasonic sensor water level gauge have high requirements, such as high transparency of plastic parts and liquid transparency, and the price It is also very high and difficult to use in small appliances. The above water control element also has residual water in the control, which affects the quality of water quality.

Utility model content

The purpose of the utility model is to solve the above problems, and to invent a safe, hygienic, convenient and low-cost water volume control device for water tanks of water purification equipment.

The technical scheme of the utility model is: a water volume control device for a water tank of water purification equipment, including a control circuit board, a solenoid valve connected in sequence by a water inlet pipe, a booster water pump, a filter element assembly and a pure water tank, and the pure water tank is connected with an outlet pipe And the water tap, the bottom surface of the pure water tank is equipped with a load cell, and the load cell is connected with the booster water pump and the electromagnetic valve through the control circuit board.

The above-mentioned pure water tank is connected with the load cell through a fixing piece.

There is a set of induction current patches on the bottom of the above load cell.

When the utility model is in use, since the weighing sensor is placed under the bottom of the pure water tank and receives the pressure of the water tank weight, the weight signal is converted into an electrical signal through deformation, and the control circuit board controls the start and stop of the booster water pump by receiving the electrical signal. The water volume control in the pure water tank can be achieved.

The beneficial effect of the utility model is that, since the weighing sensor is placed outside the pure water tank, it does not contact with the water in the pure water tank, completely eliminating hygiene and safety problems; in addition, the sensor can sense the weight of the water tank without water, and can The start-up of the booster pump is controlled when there is no water in the water tank, which completely solves the problem of residual water. In addition, the manufacturing process of the load cell is simpler and more reliable than the ultrasonic water level sensor, and the price is also lower.

Description of drawings

Fig. 1 is the overall structure schematic diagram that the water purifying equipment of the present utility model is housed.

Detailed ways

The specific implementation of the utility model will be further described below in conjunction with the accompanying drawings and examples.

As shown in Figure 1, the overall structure of the water purification equipment of the present utility model is equipped with: a control circuit board, a solenoid valve 7 connected to running water is connected with the water inlet of the booster water pump 9 through the water inlet pipe 6, and the water inlet of the filter element assembly 8 Connect the water outlet of the booster water pump 9 with a water pipe, the water inlet of the pure water tank 2 is connected with the water outlet of the filter element assembly 8, the bottom water outlet of the pure water tank 2 is connected with the water tap 4 through the water outlet pipe 11, and the water outlet of the pure water tank 2 The through hole with the screw hole 21 at the bottom and the load cell 3 are fixed together by screws, the load cell 3 with the screw hole 21 is connected with the fixing part 10 by screws, and the fixing part 10 is fixed on the main body 1 of the water purifier.

Circuit control connection description: There is a group of induced current patches 31 at the bottom of the load cell 3, the patches 31 are connected to the booster pump 9 and the solenoid valve 7 through the control circuit board, and the circuit board can sense the deformation of the load cell 3. The current changes, and control the start and stop of the booster water pump 9 and the solenoid valve 7 and the opening and closing.

Inside the water purification equipment, the deformation of the load cell 3 causes the internal patch 31 to deform simultaneously, thereby generating a corresponding output current. After the output current is collected by the control circuit board, it becomes a signal for controlling the start and stop of the booster water pump 9 and the solenoid valve 7 . When there is no water in the pure water tank 2, the deformation of the load cell 3 is small, and the output current is small. After the control circuit board collects this signal, it controls the operation of the solenoid valve 7 and the booster pump 9, and starts the solenoid valve 7. At the same time, the water also starts the booster pump 9 to make water; when the water in the pure water tank 2 reaches the specified water volume, the deformation of the load cell 3 is relatively large, and the output current is relatively large, and this large current signal is collected by the current Afterwards, stop the work of solenoid valve 7 and booster water pump 9, cut off the water source like this, stop booster water pump 9 system water. Through the above cycle start and stop, the function of automatic water production and accurate control of water production can be achieved.

Claims (3)

1. purifier water volume in water tank control device, the solenoid valve (7), booster water pump (9), element kit (8) and the pure water case (2) that comprise control circuit board, connect successively by water inlet pipe (6), pure water case (2) is connected with rising pipe (11) and water swivel (4), it is characterized in that under the bottom surface of pure water case (2) LOAD CELLS (3) being housed, LOAD CELLS (3) is connected by control circuit board with booster water pump (9), solenoid valve (7).

2. purifier water volume in water tank control device according to claim 1 is characterized in that described pure water case (2) is connected with LOAD CELLS (3) by fixture (10).

3. purifier water volume in water tank control device according to claim 1 and 2, it is characterized in that one group of induction current paster (31) is arranged at described LOAD CELLS (3) bottom, induction current paster (31) is connected by control circuit board with booster water pump (9), solenoid valve (7).

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