CN201109932Y - Intelligent automatic flushing device for sitting toilet - Google Patents

Abstract

The utility model relates to an intelligent automatic flushing device for sitting toilets used in families, hotels, guesthouses and other occasions. The electronic circuit of a single-chip microcomputer is used to realize the intelligent automatic flushing of the sitting toilet. The electromagnetic valve of the water inlet tank is fixed on the water tank body. The top side is respectively connected with the tap water pipe and the water tank pipe. The upper and lower structures on the inner side of the water tank are respectively equipped with an upper liquid level sensor and a lower liquid level sensor. It is connected with the pipeline of the toilet body, and two pressure sensors are symmetrically installed on both sides of the front edge of the upper mouth of the toilet body; the solenoid valve of the water inlet tank, the solenoid valve of the water outlet tank, the upper liquid level sensor, the lower liquid level sensor, and the pressure sensor are electrically connected. And connected with the control circuit, the single-chip microcomputer judges the control of the solenoid valve through the signal sensed by the sensor, and realizes automatic flushing in stages. It has the advantages of high intelligence, convenient automatic control, less pollution, and low cost.

Description

Intelligent automatic flushing device for sitting toilet

Technical field:

The utility model relates to an intelligent automatic flushing device for sitting toilets used in places such as families, hotels, guesthouses, etc., in particular to an intelligent automatic flushing device for sitting toilets which utilizes electronic circuits of single-chip microcomputers to realize intelligent automatic control.

Background technique:

At present, there are mainly two types of sitting toilets commonly used and sold on the market. One is to manually control the valve to achieve the purpose of draining and flushing. There is a toilet with body function, but this type of toilet is expensive, and it is unbearable for ordinary people and public places to use. In a word, existing sitting type toilets generally have the disadvantages of low degree of automation, unhygienic manual control of flushing, and the like.

Invention content:

The purpose of the utility model is to overcome the shortcomings of the existing sitting toilet, and seek to design an intelligent toilet device that can distinguish urine and feces and realize delayed automatic flushing.

In order to achieve the purpose of the above invention, the realization principle of the utility model is to realize automatic flushing based on the single-chip microcomputer and the sensor control solenoid valve, install a pressure sensor on the lower side of the toilet seat, and compare the signal generated by the pressure sensor with the signal generated by the voltage comparator Send it to the single-chip microcomputer for judgment to determine whether it is necessary to flush and distinguish between urine and urine, then delay the time through the single-chip microcomputer, and finally control the solenoid valve for automatic drainage; the utility model adds a pressure detection circuit and liquid level on the basis of the traditional toilet The detection circuit is controlled by the single-chip microcomputer to control the solenoid valve to control the water flushing. The pressure detection circuit is composed of pressure sensors and connected to the single-chip microcomputer respectively; the liquid level detection circuit is composed of liquid level sensors and connected to the single-chip microcomputer respectively; According to the preset setting, the opening or closing of the control port is controlled to control the water tank or not; the other control port controls the opening or closing to control the flushing or not; the purpose of automatic flushing is achieved through the above control, and through The pressure sensor detects the length of the signal or the forced switch to realize the intelligent control of the amount of flushing water for defecation.

The main body structure of the utility model includes an upper liquid level sensor, a lower liquid level sensor, an electromagnetic valve for the water inlet tank, an electromagnetic valve for the water outlet tank, a water storage tank, a toilet body, a toilet seat cover and a pressure sensor, and the electromagnetic valve for the water inlet tank is fixed on the The top side of the water storage tank is respectively connected with the tap water pipe and the water storage tank pipeline. The upper and lower structures on the inner side of the water storage tank are respectively installed with an upper liquid level sensor and a lower liquid level sensor at a distance of 20-50 cm. The outlet is equipped with a solenoid valve for the water outlet tank and is respectively connected with the water storage tank and the toilet body pipeline. Two pressure sensors are symmetrically installed on both sides of the front edge of the upper mouth of the toilet body to ensure that the human body can give a certain pressure when the sitting posture is convenient; The electromagnetic valve of the water inlet tank, the electromagnetic valve of the water outlet tank, the upper liquid level sensor, the lower liquid level sensor, and the pressure sensor are electrically connected, and are connected with the control circuit to realize the control function.

The control circuit of the utility model is composed of a single-chip microcomputer, a liquid level sensor and a solenoid valve to control the automatic water intake and flushing, and the time delay, the size of the water intake and flushing are controlled by the single-chip microcomputer-based control circuit; usually The water level of the water tank is kept at the urine discharge position by the liquid level sensor. When the pressure sensor has a signal input, the single-chip microcomputer starts timing, and compares the time until the signal disappears with the standard time set by the single-chip microcomputer. When the former is greater than the latter, the water level of the water tank reaches the amount of stool flushing through the single-chip microcomputer and the liquid level sensor, and the solenoid valve is controlled for large-flow drainage after a delay by the single-chip microcomputer; when the former is smaller than the latter, the solenoid valve is directly controlled after a delay by the single-chip microcomputer Carry out small flow drainage, and realize automatic flushing according to this.

The signal detection circuit or sensing circuit of the utility model is composed of a pressure sensor, an upper liquid level sensor (to detect the amount of urine flushing water) and a lower liquid level sensor (to detect the amount of stool flushing water) connected by electrical signals and connected through a single-chip microcomputer.

The control circuit of the utility model is made up of AT89C2051 single-chip microcomputer, optocoupler, water inlet tank solenoid valve (control water intake), water outlet tank solenoid valve (control flushing water), switch, resistor, and triode electrically connected to form.

The single-chip microcomputer in the utility model controls the electromagnetic valve by judging the time length of the signal sensed by the pressure sensor, so as to realize the function of automatic flushing in stages, which can be widely used in the fields of families, hotels, guesthouses, etc. High degree of intelligence, convenient automatic control, less pollution, low cost and other advantages.

Description of drawings:

Fig. 1 is a schematic diagram of the installation structure principle of the sitting toilet applied by the utility model.

Fig. 2 is a schematic diagram of the work flow of the control circuit of the present invention.

Fig. 3 is a schematic diagram of the control circuit principle of the utility model.

Detailed ways:

Further description will be given below through the embodiments and in conjunction with the accompanying drawings.

Example:

The implementation of this embodiment is mainly based on the single-chip microcomputer and the sensor-controlled solenoid valve to realize automatic flushing. A pressure sensor is added to the lower side of the toilet seat, and the signal generated by the pressure sensor is compared with the voltage comparator to send the generated signal to the single-chip microcomputer for judgment. To determine whether it is necessary to flush and distinguish between urine and urine, then delay the time through the single-chip microcomputer, and finally control the solenoid valve to automatically drain water. The intelligent automatic flushing toilet composed of the utility model adds a pressure detection circuit and a liquid level on the basis of the traditional toilet. The detection circuit is controlled by the single-chip microcomputer to control the solenoid valve to control the water flushing. The pressure detection circuit is composed of pressure sensor circuits U8 and U9, which are connected to the ports P1.6 and P1.7 of the single-chip microcomputer respectively; the liquid level detection circuit is composed of liquid level sensors. The circuits U6 and U7 are composed of circuits, which are respectively connected to the P1.5 and P1.4 ports of the single-chip microcomputer. When the single-chip microcomputer detects the signal, according to the preset, by comparing and controlling the P3.7 port to control U3 to open or close to control the water tank or not; control the P1.2 port to control U4 to open or close to control flushing or not. The purpose of automatic flushing is achieved through the above control, and the purpose of intelligently controlling the amount of flushing water for defecation is realized through the length of the pressure sensor detection signal or the forced switch k1.

The use and installation main structure of this embodiment includes an upper liquid level sensor 1, a lower liquid level sensor 2, a water inlet tank solenoid valve 3, a water outlet tank solenoid valve 5, a water storage tank 4, a toilet body 8, a toilet seat cover 6 and a pressure sensor 7 The electromagnetic valve 3 of the water inlet tank is fixed on one side of the top of the water storage tank 4, and communicates with the tap water pipe and the pipeline of the water storage tank 4 respectively. The upper and lower structures on the inner side of the water storage tank 4 are installed with upper and lower structures at a distance of 20 to 50 cm, respectively. The lower liquid level sensors 1 and 2, the center outlet at the bottom of the water storage tank 4 are equipped with a water outlet solenoid valve 5 and are respectively connected with the water storage tank 4 and the toilet body 8 pipelines, and two symmetrical installations are installed on both sides of the upper edge of the toilet body 8. Pressure sensor 7, to ensure that the sitting posture is convenient, the human body can give certain pressure; Inlet water tank electromagnetic valve 3, water outlet tank electromagnetic valve 5, upper and lower liquid level sensors 1 and 2, pressure sensor 7 electrical information communication, and with The control circuit shown in Fig. 3 is connected with electrical information to realize the control function.

In this embodiment, two pressure sensors 7 are installed on the edge of the traditional toilet to detect external signals. The automatic water intake and flushing device is composed of a single-chip microcomputer, a liquid level sensor and a solenoid valve, and the delay and the intake are controlled by the single-chip microcomputer. The size of the water volume and flushing or not; usually the water level of the water tank is kept at the urine displacement position through the liquid level sensor. When the pressure sensor has a signal input, the single-chip microcomputer starts counting, and the time t1 until the signal disappears and the standard time t set by the single-chip microcomputer. Comparison; when t1 is greater than t, the water level of the water tank reaches the amount of stool flushing through the single-chip microcomputer and the liquid level sensor, and the solenoid valve is controlled to discharge large flow after the delay of the single-chip microcomputer; when t1 is less than t, the solenoid valve is directly controlled after the delay of the single-chip microcomputer Carry out small flow drainage, and realize automatic flushing according to this.

The standby switch in this embodiment is composed of two switches, and k0 is composed of a single-chip microcomputer and a liquid level sensor. When k0 is pressed, the single-chip microcomputer controls the solenoid valve to open the water inlet, and when the stool flushing water level is reached, the single-chip microcomputer controls the opening of the solenoid valve for flushing ; k1 is a special switch for men to urinate. When k1 is pressed, the single-chip microcomputer control directly opens the water outlet solenoid valve for flushing.

The induction circuit of the present embodiment is made up of pressure sensor U8, U9, liquid level sensor U6 (detection urine flushing water volume), U7 (detection stool flushing water volume); Control water intake), U4 (control flushing), switch J1 (k0 forced flushing) J2 (k1 special switch for men's urination), resistors R1-R12, triode Q1-Q4.

The components and parts in the control circuit involved in this embodiment are selected as follows: U1 is an AT89C20651 single-chip microcomputer; U2 and U5 are ordinary optocouplers; U3 and U4 are ordinary electronically controlled solenoid valves; U6 and U7 are ordinary liquid level sensors; U9 is an ordinary pressure sensor; X1 is a crystal oscillator; J1 and J2 are switches K0 and K1; the capacitance values of capacitors C1, C2, and C3 are 10PF, 10PF, and 10μF respectively; resistor R1=R2=R6=R11=10KΩ; R3= R8=1KΩ; R4=R10=240Ω; R5=R12=22KΩ; R7=R9=2.2KΩ; R13=8.2KΩ; Q1~Q4 are common transistors.

Claims (1)

1. intelligent automatic flushing device of sitting type toilet seat, it is characterized in that the inlet water tank electromagnetic valve is fixed on water storage casing top one side, be communicated with running water pipe and storage tank pipeline respectively, upper and lower structure also is separately installed with liquid level sensor, following liquid level sensor at a distance of 20～50cm on the storage tank inner side edge, storage tank bottom centre exit is shaped on the water tank electromagnetic valve and is communicated with storage tank and toilet body pipeline respectively, and toilet body edge suitable for reading front part sides symmetrical expression is installed two pressure sensors; Inlet water tank electromagnetic valve, water tank electromagnetic valve, last liquid level sensor, following liquid level sensor, pressure sensor telecommunications breath are communicated with, and are communicated with control circuit.

Images