CN110250969A - An automatic soap dispenser with adjustable output - Google Patents

Abstract

An automatic soap dispenser with adjustable liquid output. The invention mainly solves the problem that the maximum stroke of the piston of the existing liquid outlet pump cannot be adjusted, and the liquid outlet volume cannot be adjusted. It is characterized in that: the liquid outlet pump at least includes a pump body and a piston for controlling the opening and closing of the liquid outlet pump, and a piston stroke adjustment mechanism for controlling the maximum stroke of the piston is also arranged on the piston and the base. The advantage is that the maximum stroke of the piston is limited by the piston stroke adjustment mechanism to control the maximum liquid output of the soap dispenser every time the piston is pressed, and the user can adjust the maximum stroke of the piston according to the actual amount of soap liquid needed. Control the amount of liquid each time, the operation is more convenient, and waste is reduced.

Description

An automatic soap dispenser with adjustable output

technical field

The invention relates to a soap dispenser, in particular to an automatic soap dispenser with adjustable liquid output.

Background technique

Soap dispenser is also called soap dispenser, which can squeeze out hand sanitizer and is generally used in public toilets and hotels.

An automatic soap dispenser is a soap dispenser that can automatically sense and automatically control the liquid. It usually includes a casing, a liquid storage tank, a liquid pump, an infrared sensor, a control circuit board, and a driving mechanism. When in hand, the signal is sent to the control circuit board, the control circuit board sends a control signal, starts the driving mechanism, and the driving mechanism drives the liquid pump to move, squeeze out the soap liquid in the liquid storage tank for use, avoid contact and use Cleaning hands with soap is not only more hygienic, but also more convenient.

However, different people (such as adults and children) have different palm sizes, and when they wash their hands, the amount of cleaning fluid they need is also different. The larger the palm, the more cleaning fluid they need; less cleaning solution.

However, automatic soap dispensers usually have the characteristics of automatic and quantitative, that is to say, the liquid output is consistent every time. If the liquid output is too large, people with small hands will easily cause waste. If the amount is too small, people with big hands need to repeat the induction many times to discharge the liquid, which is inconvenient to operate.

For example, the Chinese invention patent (CN104203058B) discloses a liquid dispensing unit, which includes a housing, a liquid reservoir, a pump, a motor, a first sensor, and a microcontroller. The first sensor senses the distance between the object and the microcontroller. The first sensor receives the signal and controls the motor to distribute the approximate liquid dispensing amount according to the distance.

Although this patent can realize the automatic adjustment of the liquid output, it requires the user to control the distance between the palm and the first sensor to realize the adjustment, which cannot be adjusted according to the actual size of the palm, and the liquid output is difficult to control.

Contents of the invention

In order to overcome the shortcomings of the background technology, the present invention provides an automatic soap dispenser with adjustable liquid output, which solves the problem that the existing automatic soap dispenser can automatically and quantitatively dispense liquid each time and cannot automatically adjust the liquid output.

The technical solution adopted in the present invention: an automatic soap dispenser with adjustable liquid output, including

shell;

a bottom plate, which is arranged on the bottom of the shell;

a liquid storage tank, which is arranged in the shell and is used for storing soap liquid;

A liquid outlet pump, which is arranged at the bottom of the liquid storage tank, and its outlet is set through the bottom plate downwards, and is used to squeeze out the soap liquid in the liquid storage tank;

Microcontroller, which is installed on the bottom plate, is used to receive various signals and output control signals;

Several first infrared distance sensors, which are arranged on the bottom plate and connected to the microcontroller, are used to detect the palm and send the acquired information to the microcontroller, the first infrared distance sensors are centered on the outlet of the liquid pump, Arranged at even intervals along the left and right straight lines;

The motor is installed on the base plate and connected to the microcontroller and the liquid outlet pump, and is used to receive the control signal of the microcontroller and drive the liquid outlet pump to squeeze out the soap liquid in the liquid storage tank.

It also includes a laser indicator, which is arranged on the bottom plate and adjacently arranged at the front end of the outlet of the liquid outlet pump.

It also includes a number of second infrared distance sensors, which are arranged on the bottom plate and connected to the microcontroller for detecting the palm and sending the acquired information to the microcontroller, and the second infrared distance sensors are arranged at the outlet of the liquid pump The rear is set at even intervals along the front and rear straight lines;

The direction indicator is arranged on the front side of the housing, and has four groups of indicator lights, front, rear, left, and right, and is connected to the microcontroller for receiving control signals from the microcontroller and giving position movement instructions.

It also includes a circuit board, which is in a "T" shape, and the first infrared distance sensor and the second infrared distance sensor are installed on the circuit board.

It also includes an ultrasonic distance sensor, which is arranged on the bottom plate and at the front end of the outlet of the liquid pump, which is connected to the microcontroller to detect the change information of the distance between the palm and it, and sends the received information to the microcontroller.

The output end of the motor is provided with an output gear; the liquid outlet pump is provided with a piston, and a rack is formed at the end of the piston, and the output gear is meshed with the rack.

The upper end of the liquid storage tank is provided with an opening, the top of the housing is provided with a liquid filling hole, and a sealing plug is provided at the liquid filling hole.

The beneficial effects of the present invention are: adopting the above scheme, the microcontroller controls the number of rotations of the motor by judging the number of inductions of the first infrared distance sensor. The more the number of rotations of the motor, the more the liquid output, and vice versa, so as to realize the automatic quantitative liquid output according to the size of the palm, making the liquid output more scientific, reasonable and accurate, and avoiding waste.

Description of drawings

Fig. 1 is a schematic structural diagram 1 of an automatic soap dispenser with adjustable liquid output according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram 2 of an automatic soap dispenser with adjustable liquid output according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of an automatic soap dispenser with an adjustable output volume according to an embodiment of the present invention with its bottom plate hidden.

Fig. 4 is a schematic structural diagram of an automatic soap dispenser with an adjustable output volume according to an embodiment of the present invention, with its casing and liquid storage tank hidden.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

As shown in the figure, an automatic soap dispenser with adjustable liquid output includes a housing 1 , a bottom plate 2 , a liquid storage tank 3 , a liquid output pump 4 , a microcontroller 5 , a first infrared distance sensor 6 , and a motor 7 .

The bottom of the casing 1 is open, and the bottom plate 2 is installed on the bottom of the casing 1, which is convenient for overall assembly.

The liquid storage tank 3 is arranged inside the housing 1 for storing soap liquid, wherein the top opening of the liquid storage tank 3 is provided, and the top of the housing 1 is provided with a liquid filling hole 12, when the soap liquid in the liquid storage tank 3 is used up When the liquid is added, liquid can be added through the liquid filling hole 12 on the top, which is convenient. Further, a detachable sealing plug 13 is arranged at the liquid filling hole 12 to prevent dust and water. When liquid needs to be added, take the Lower sealing plug 13 gets final product, easy to operate.

The liquid outlet pump 4 is arranged at the bottom of the liquid storage tank 3, and its outlet 41 is arranged downward through the bottom plate 2. The liquid outlet pump 4 also includes a piston 42, which can discharge the soap in the liquid storage tank 3 by driving the piston. Liquid squeezed out.

The microcontroller 5 is installed on the base plate 2, and the microcontroller 5 can be a common model on the market, which has the ability to receive signals, output control signals and logic operations.

The first infrared distance sensor 6 is arranged on the base plate 2, and centered on the outlet 41 of the liquid outlet pump 4, it is evenly spaced along the left and right linear directions. The first infrared distance sensor 6 is connected to the microcontroller 5, which can The signal is sent to the microcontroller 5, and the first infrared distance sensor 6 is arranged downward, and when the light emitted below is blocked within a certain distance range, it will trigger the emission signal.

The motor 7 can be installed on the base plate or the inner wall of the housing through a motor base, and the output end of the motor 7 is provided with an output gear 71; meshing, the rotation of the motor 7 can drive the piston 42 to act in a straight line, thereby realizing the automatic liquid discharge function of the liquid discharge pump 4 .

The motor 7 is also connected to the microcontroller 5, and the microcontroller 5 can calculate the appropriate liquid output according to the signal transmitted by the first infrared distance sensor 6, thereby controlling the output gear 71 of the motor 7 to rotate a certain number of turns to achieve quantitative out of fluid.

When in use, first extend the hand to the bottom of the soap dispenser, and the palm will block part of the first infrared distance sensor, so that it senses the palm and sends a signal to the microprocessor 5. When the palm moves to the designated position and stays for a few seconds , the microcontroller 5 obtains the information that each first infrared distance sensor has no change, and then outputs a control signal to the motor 7 according to the induction quantity of the first infrared distance sensor, controls the motor 7 to rotate a certain number of turns, and the motor drives the liquid outlet pump 4 to act out of fluid.

The distance between each adjacent first infrared distance sensor is defined as a, the width of the palm is defined as w, and the number of palms that can block the first infrared distance sensor is defined as x, the formula w≈a*(x-1) can be obtained, That is to say, the larger the width of the palm, the larger the palm, the more the number of the first infrared distance sensor can be blocked, and vice versa, the microcontroller 5 can judge according to the sensing quantity of the first infrared distance sensor The size of the palm controls the number of rotations of the motor 7 to achieve the purpose of automatic adjustment of the liquid output, thereby realizing automatic quantitative liquid output according to the size of the palm, making the liquid output more scientific, reasonable and accurate, and avoiding waste.

According to the number of inductions of the first infrared distance sensor 6, the rotation of the motor 7 is controlled, and the liquid is pumped out. The distance between each adjacent first infrared distance sensor can be between 0.4cm-0.6cm. On the premise of ensuring the cost, the measurement error should be reduced as much as possible. Of course, the smaller the distance between the first infrared distance sensors, the more accurate the measurement.

In addition, the output volume can be set according to the size of the palm. For example, the output volume can be divided into three levels, large portion, medium portion, and small portion. When x<M, the liquid output is small portion. When M<x When <N, the output volume is medium. When N<x, the output volume is large. It is divided into three gears, which is more conducive to controlling the output volume. The specific values of M and N can be determined according to The size of a is set.

Of course, the rotation angle of the motor can be correspondingly increased by α° for every increase in the sensing quantity of the first infrared distance sensor 6 .

Since the outlet of the above-mentioned automatic soap dispenser with adjustable liquid output is set downward, it is difficult to directly observe the position of the outlet, so that people may not be able to correspond to the position near the center of the palm with the outlet, and cannot ensure that the liquid drips accurately to the palm of the hand Center, and it is easy to cause errors in palm size sensing.

Further, the bottom plate 2 is provided with a laser pointer 8, and the laser pointer 8 is adjacent to the front end of the outlet 41 of the liquid pump 4, and the bottom plate 2 is provided with a through hole corresponding to the position of the laser pointer 8, so that The laser light can pass through the through hole and shoot downwards. When the palm is placed under the bottom plate 2, the laser pointer 8 can form a dot on the surface of the palm of the hand. Observing the position of the dot can make people accurately center themselves and ensure that the position of the exit 41 can be basically Align with the center of the palm.

Further, the laser pointer 8 can also be connected with the microcontroller 5. When the first infrared distance sensor 6 is blocked and senses that the palm is inserted, the signal is transmitted to the microprocessor 5, and the microprocessor 5 immediately sends a signal to the laser. indicator 8, so that the laser pointer 8 is powered on.

Of course, in addition to the above-mentioned center positioning method, other center positioning methods can also be used. As shown in the figure, a number of second infrared distance sensors 9 are arranged on the bottom plate, and are arranged behind the outlet 41 of the liquid outlet pump 4, along the front and rear The linear direction is evenly spaced, and the second infrared distance sensor 9 is connected to the microcontroller 5, and can send a signal to the microcontroller 5. The second infrared distance sensor 9 adopts the same type as the first infrared distance sensor 6. A sensor that emits a signal when the light emitted below it is blocked within a certain distance.

The front side of the housing 1 is provided with a direction indicator 10, which includes a head-cutting indicator light pointing to the four directions of front, rear, left, and right, and is connected to the microcontroller 5 for receiving the control signal of the microcontroller 5 and giving a position movement instruction .

The distance between each adjacent second infrared distance sensor 9 is the same as the distance between the first infrared distance sensor 6, the second infrared distance sensor 9 and the first infrared distance sensor 6 are in a "T" layout, and the exit 41 is located at the second At the intersection center of the infrared distance sensor 9 and the first infrared distance sensor 6, the first infrared distance sensor 6 can detect and judge the width of the palm, and correspondingly, the length of the palm can be detected by the second infrared distance sensor 9.

When in use, extend your palm to the bottom of the soap dispenser, the first infrared distance sensor 6 will sense and transmit a signal when it is blocked, and the microprocessor 5 can compare the sensing quantities of the first infrared distance sensor 6 on the left and right sides to judge the left and right sides. Whether the position is accurate, when the first infrared distance sensor 6 sensing quantity deviation value on the left and right sides is greater than 1, then the left and right positions are not accurate, and the microprocessor 5 will control the corresponding arrow indicator light to light up and guide people to move their palms left and right. Move to adjust; when the first infrared distance sensor 6 on the left and right sides senses a quantity deviation value less than or equal to 1, it means that the centering of the left and right positions is relatively accurate.

After the left and right positions are accurate, the microprocessor 5 judges whether the length position is accurate according to the sensing quantity of the second infrared distance sensor 9, if not accurate then guides people by the front and rear two indicator lights of the direction indicator 10, and guides people to move the palm back and forth Make adjustments.

The distance between each adjacent second infrared distance sensor is also a, the distance from the end of the index finger to the center of the palm is defined as L, and the number of palms that can block the second infrared distance sensor is defined as y, the formula L≈a*( y-1), everyone’s palm length-width ratio is relatively close, usually, L≈1.5w, and according to the formula w≈a*(x-1), y=1.5x-0.5 can be obtained, because x, y must be an integer, so it can be defined that when x is an even number, y=1.5x, and when x is an odd number, y=15.x-0.5, so that the second infrared distance sensor 6 can be determined according to the sensing quantity of the first infrared distance sensor 6 The sensing quantity of the infrared distance sensor, when the actual occlusion quantity of the second infrared distance sensor and the theoretical occlusion quantity calculated based on the sensing quantity of the first infrared distance sensor 6 deviates greater than 1, it indicates that the front and rear positions are inaccurate, and the microprocessing The device 5 controls the corresponding arrow indicator light to light up for guidance, and guides people to move their palms back and forth to adjust. When the deviation value is less than or equal to 1, it means that the front and rear position alignment is relatively accurate.

Further, the base plate 2 is provided with a "T"-shaped circuit board 10, and the first infrared distance sensor 6 and the second infrared distance sensor 9 are integrally installed on the circuit board 10, which is more convenient for installation.

The base plate 2 is also provided with an ultrasonic distance sensor 11, and is arranged on the front end of the outlet 41 of the liquid pump 4, which is connected to the microcontroller 5 for detecting the distance change information between the palm and the distance, and sending the received information to Microcontroller5.

When there are many stains on the hand and the user feels that the amount of soap liquid judged according to the size of the palm is not enough to clean the stain on the hand, the ultrasonic distance sensor 11 can sense the position change of the palm by moving up and down vertically, and transmit the information to Microprocessor 5, after microprocessor 5 receives this signal, can send control signal to motor 7, control motor 7 to rotate a little angle, make liquid outlet pump 4 action base a small amount of soap liquid.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

Notes to all technical personnel: Although the present invention has been described according to the above-mentioned specific embodiments, the inventive idea of the present invention is not limited to this invention, and any modification using the inventive idea will be included in the scope of protection of this patent.

Claims (7)

1. a kind of adjustable automatic soap dispenser of liquid outlet quantity, including

Shell (1)；

Bottom plate (2), is set to the bottom of shell (1)；

Liquid reserve tank (3), setting is in shell (1), for storing soap lye；

Pump for giving-out (4), setting export (41) and pass through bottom plate (2) setting downward, be used for liquid storage in liquid reserve tank (3) bottom Soap lye in case (3) squeezes out；

It is characterized by also including

Microcontroller (5) is mounted on bottom plate (2), for receiving various signals, and exports control signal；

Several first infrared distance sensors (6) are arranged on bottom plate (2), and connect microcontroller (5), for detecting hand It slaps and the information that will acquire is sent to microcontroller (5), first infrared distance sensor (6) is with the outlet of Pump for giving-out (4) (41) centered on, along left and right, rectilinear direction is evenly spaced apart to be arranged；

Motor (7) is mounted on bottom plate (2), and connects microcontroller (5) and Pump for giving-out (4), for receiving microcontroller (5) control signal simultaneously drives the Pump for giving-out (4) to squeeze out the soap lye in liquid reserve tank (3).

2. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 1, it is characterised in that: further include laser designation Device (8) is arranged on bottom plate (2), and is disposed adjacent in outlet (41) front end of Pump for giving-out (4).

3. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 1, it is characterised in that: further include

Several second infrared distance sensors (9) are arranged on bottom plate (2), and connect microcontroller (5), for detecting hand It slaps and the information that will acquire is sent to microcontroller (5), second infrared distance sensor (9) is arranged in Pump for giving-out (4) (41) rear is exported, is evenly spaced apart to be arranged along tandem direction；

Direction indicator (10), setting has four groups of indicator lights all around on front side of shell (1), and connects microcontroller Device (5), for receiving the control signal of microcontroller (5) and being indicated to out position is mobile.

4. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 3, it is characterised in that: further include wiring board It (11), is in T-shape, the first infrared distance sensor (6) and the second infrared distance sensor (9) installation assist side (10) On.

5. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 1, it is characterised in that: further include ultrasonic wave away from From sensor (12), it is arranged on bottom plate (2), setting connects microcontroller in outlet (41) front end of Pump for giving-out (4) (5), for detecting the distance variation information of palm and its, and the information received is sent to microcontroller (5).

6. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 1, it is characterised in that: the motor (7) Output end is equipped with output gear (71)；The Pump for giving-out (4) is equipped with piston (42), and the pistons end is formed with rack gear (43), the output gear (71) is meshed with rack gear (43).

7. the adjustable automatic soap dispenser of a kind of liquid outlet quantity according to claim 1, it is characterised in that: the liquid reserve tank (3) Upper end opening setting, shell (1) top are equipped with liquid filling hole, are equipped with sealing-plug (13) at the liquid filling hole.