CN108814388A - The air-dried hand protector of intelligence - Google Patents

Abstract

The invention provides an intelligent air-drying hand protector, which includes a housing, a hot air blower and a first sensor are arranged in the housing, a hand sanitizer box is also arranged in the housing, the hand sanitizer box includes a liquid storage bin and a liquid outlet pipe, the storage The liquid storage tank and the liquid outlet pipe are set between the liquid storage tank and the liquid outlet pipe for one-way communication. The liquid outlet pipe is equipped with a piston and a liquid outlet pipe piston rod. The piston rod is connected to the transmission device. The inside of the liquid storage pipe is divided into a liquid inlet chamber The liquid storage chamber is connected with the liquid inlet chamber, and a second sensor is installed at the outlet of the liquid outlet chamber; the transmission device includes a cylinder, an air pump, a pneumatic reversing valve and a motor, and the piston rod of the liquid outlet pipe matches the piston rod of the cylinder There is a composite travel switch, and the composite travel switch includes a first travel switch and a second travel switch connected to each other. On the basis of the first sensor of the original hot air box, the present invention adds a hand sanitizer box, an automatic liquid discharge device and a second sensor, and controls the liquid discharge through the two sensors, which is convenient to use and avoids unnecessary waste.

Description

Smart Air Dry Hand Guard

technical field

The invention relates to a sanitary device, in particular to an intelligent air-drying hand protector.

Background technique

Usually, when people come out of the public toilet, they will dry their hands with a hot air blower after washing their hands. In the dry areas of the north, they will feel uncomfortable after drying their hands. Many people, especially women, will bring their own moisturizing products such as hand oil. Skin care products are not suitable for carrying around, they are often put in handbags or satchels, but it is also very inconvenient to carry a bag when going to the toilet, and it takes a long time to use the self-provided skin care products, which is likely to cause congestion in public toilets where there is generally not enough space.

Contents of the invention

Aiming at the deficiencies of the prior art, the invention provides an intelligent air-drying hand protector.

The technical solution adopted in the present invention is: an intelligent air-drying hand protector, including a shell, a hot air blower and a first sensor matched with it are arranged in the shell, a hand sanitizer box is also arranged in the shell, and the hand guard The liquid box includes a liquid storage bin and a liquid outlet pipe. The liquid storage bin and the liquid outlet pipe are provided with a one-way communication between the liquid storage bin and the liquid outlet pipe. The liquid outlet pipe is provided with a piston and a liquid outlet pipe piston rod. The piston is a soft The piston rod is connected to the transmission device. The interior of the liquid storage tube is divided into a liquid inlet chamber and a liquid outlet chamber by a piston. The liquid storage chamber is connected to the liquid inlet chamber. The liquid outlet chamber is provided with an outlet, and a second sensor is installed at the outlet; The transmission device includes a cylinder, an air pump, a pneumatic reversing valve and a motor. The pneumatic reversing valve is a two-position four-way solenoid valve. A travel switch and a second travel switch.

The above-mentioned intelligent air-drying hand guard is characterized in that: the motor is matched with two power supply circuits, circuit I and circuit II, circuit I includes the motor, the electromagnet on one side of the pneumatic reversing valve and the first relay, The motor is connected in parallel with the electromagnet on one side of the pneumatic reversing valve and the first relay in series. The circuit II includes the motor, the electromagnet on the other side of the pneumatic reversing valve and the second relay. The coil of the first relay is connected in series with the first travel switch. The second relay coil is connected in series with the second travel switch.

On the basis of the first sensor of the original hot air box, the present invention adds a hand sanitizer box, an automatic liquid discharge device and a second sensor, and controls the liquid discharge through the two sensors, which is convenient to use and avoids unnecessary waste.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of PLC control circuit of the present invention;

Fig. 3 is the schematic diagram of the circuit using the novel transmission device;

Figure 4 is a schematic diagram of the new pneumatic structure used in this application;

In the figure: 1-shell, 2-dryer, 21-first sensor, 22-transformer, 3-PLC controller, 31-power port, 32-first input port, 33-first output port, 34-second input port, 35-second output port, 4-motor, 41-air pump, 42-pneumatic reversing valve, 43-cylinder, 44-first stroke switch, 45-second stroke switch, 46-the first 1 relay, 47-second relay, 5-hand sanitizer box, 51-liquid storage bin, 52-liquid outlet pipe, 53-piston, 55-liquid outlet, 56-baffle, 6-second sensor.

Detailed ways

As shown in Figure 1, an intelligent air-drying hand protector includes a housing 1, a dryer 2 and a hand sanitizer box 5 are arranged in the housing 1, the dryer 2 is matched with a first sensor 21, and the hand sanitizer The box 5 includes a liquid storage chamber 51 and a liquid outlet pipe 52. A piston 53 and a corresponding piston rod are arranged in the liquid outlet pipe 52. The material of the piston 53 is rubber or other soft materials. The piston 53 divides the inner chamber of the liquid outlet pipe into the liquid inlet chamber. 521 and the liquid outlet bin 522, the liquid inlet bin is connected with the liquid storage bin 51, and the connection is provided with a baffle 56 that can only be opened downward, or a one-way valve in the direction of the liquid storage bin-inlet bin, and the outlet side of the liquid bin A liquid outlet 55 is provided at the top. The piston rod of the liquid outlet pipe 52 is connected to the piston rod of the cylinder 43 and matched with a composite travel switch, which includes a first travel switch 44 and a second travel switch 45 connected to each other. A second sensor 6 is arranged at the liquid outlet of the casing 1 . The first and second sensors are both infrared sensors.

As shown in Figure 2, transformer 22 converts 220V alternating current into 24V direct current, supplies power for PLC controller 3, and PLC controller 3 includes power supply port 31, first input port 32, first output port 33, second input port 34, The second output port 35, wherein, the power supply port is connected with each input port and the 24V high voltage port of the transformer output side, each output port is connected with the 0V low voltage port of the transformer output side, the first input port 32 is connected in series with the first sensor photosensitive element, the second The input port 34 is connected in series with the second photosensitive sensor, the first output port 33 is connected in series with the electromagnet KA1 of the first relay 46 , and the second output port 35 is connected in series with the electromagnet KA2 of the second relay 47 . The electromagnet KA1 of the first relay 46 is connected in series with the first travel switch 44 , and the electromagnet KA2 of the second relay 47 is connected in series with the second travel switch 45 .

As shown in Figure 3, the motor 3 is powered by the transformer 22, and the motor 3 is matched with two circuits. In the circuit I, the motor is connected in parallel with the electromagnet DT1 of the pneumatic reversing valve and the switch of the first relay 46 in series. In the circuit II, the motor is connected in parallel with the pneumatic valve. The switch of the reversing valve electromagnet DT2 and the second relay 47 connected in series.

As shown in FIG. 4 , the motor 4 drives the air pump 41 , and the air pump is connected to the cylinder 43 through the pneumatic reversing valve 42 , which is a two-position four-way electromagnetic reversing valve.

Before using the hand guard, input relevant programs into the PLC controller, so that when the first input port 32 is energized, the first output port 33 outputs voltage outwardly, and when the second input port 34 is energized, the second output port 35 continues outward. The output voltage. When the hand protector is in use, the transformer 26 is connected to 220V AC. When using the dryer, the photosensitive element of the first sensor is activated, the first input port 32 is energized, the first output port 33 outputs voltage, and the first relay electromagnet KA1 is energized, the relay switch is closed, the circuit Ⅰ is connected, the motor starts to drive the air pump to work, the electromagnet DT1 of the pneumatic reversing valve is energized, the air pump drives the cylinder to move, and the piston of the liquid outlet pipe moves toward the liquid inlet chamber until the first stroke switch is triggered , the first travel switch is opened, the second travel switch is closed, the first relay electromagnet KA1 is de-energized, the relay switch is opened, the circuit I is disconnected, and the motor stops working. Since the piston 53 is made of rubber material, it enters the liquid chamber during the movement. The hand sanitizer is squeezed into the liquid outlet; when the hand is placed under the liquid outlet, the photosensitive element of the second sensor is activated, the second input port 34 is energized, the second output port 35 outputs voltage, and the second relay electromagnet KA2 is energized, the relay switch is closed, the circuit Ⅱ is connected, the motor starts to drive the air pump to work, the pneumatic reversing valve electromagnet DT2 is energized, the air pump drives the cylinder to move, and the piston of the liquid outlet pipe moves toward the liquid outlet until the second stroke switch is triggered , the second travel switch is opened, the first travel switch is closed, the second relay electromagnet KA2 is de-energized, the relay switch is opened, the circuit II is disconnected, the motor stops working, and the piston 53 moves the hand sanitizer in the liquid outlet chamber from the outlet The liquid port is squeezed out, and at the same time, the volume of the liquid inlet chamber increases, the shutter is opened, and the hand sanitizer enters the liquid inlet chamber from the liquid storage chamber to prepare for the next liquid discharge. This design can ensure that the user can use the hand sanitizer after using the dryer. In the case of not using the dryer, even if the second sensor 6 is triggered, the second relay 47 is closed, because the second travel switch 45 is open state, the circuit II is blocked, and the piston 53 is already on the side of the liquid outlet, so the liquid cannot be discharged, thereby avoiding waste; if the user uses the dryer but does not use the hand sanitizer, the first sensor is continuously triggered, From the second triggering, even if the first relay 46 is closed, because the first travel switch 44 is open, the circuit I is blocked, and the piston 53 is already on the liquid inlet side, so no false contact will be formed.

The functions related to the PLC controller in the present invention are commonly used functions of PLC controllers, such as Siemens S7-200 and S7-300 series, which can realize the functions described in the embodiments. The relevant circuit between the first sensor and the dryer has nothing to do with the content of the present invention, so it is not described in detail and does not affect the integrity of the technical content of the present invention.

Claims (2)

1. An intelligent air-drying hand protector, comprising a shell, a hot air blower and a first sensor matching it are arranged in the shell, and it is characterized in that: a hand sanitizer box is also arranged in the shell, and the hand sanitizer box Including the liquid storage bin and the liquid outlet pipe, the liquid storage bin and the liquid outlet pipe are provided with one-way communication between the liquid storage bin and the liquid outlet pipe, and the liquid outlet pipe is provided with a piston and a liquid outlet pipe piston rod, and the piston is made of soft material , the piston rod is connected to the transmission device, the interior of the liquid storage pipe is divided into a liquid inlet chamber and a liquid outlet chamber by a piston, the liquid storage chamber is connected with the liquid inlet chamber, the liquid outlet chamber is provided with an outlet, and a second sensor is arranged at the outlet; The transmission device includes a cylinder, an air pump, a pneumatic reversing valve and a motor. The pneumatic reversing valve is a two-position four-way solenoid valve. The piston rod of the liquid outlet pipe and the piston rod of the cylinder are matched with a composite stroke switch. The composite stroke switch includes the first stroke connected to each other. switch and second travel switch. 2. An intelligent air-drying hand guard according to claim 1, characterized in that: the motor is matched with two power supply circuits, circuit I and circuit II, circuit I includes the motor, and the solenoid on one side of the pneumatic reversing valve Iron and the first relay, the motor is connected in parallel with the electromagnet on one side of the pneumatic reversing valve, and the first relay in series, the circuit II includes the motor, the electromagnet on the other side of the pneumatic reversing valve and the second relay, the coil of the first relay The first travel switch is connected in series, and the second relay coil is connected in series with the second travel switch.