CN212250545U - Toilet lower exhaust device with automatic ventilation function - Google Patents
Toilet lower exhaust device with automatic ventilation function Download PDFInfo
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- CN212250545U CN212250545U CN202020289975.1U CN202020289975U CN212250545U CN 212250545 U CN212250545 U CN 212250545U CN 202020289975 U CN202020289975 U CN 202020289975U CN 212250545 U CN212250545 U CN 212250545U
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Abstract
The utility model provides a toilet lower exhaust device with automatic ventilation function, which comprises an exhaust fan and an infrared inductive switch, wherein the infrared inductive switch comprises an infrared inductive probe, the exhaust fan comprises an exhaust fan blade and a motor, the motor is fixedly connected with the exhaust fan blade through a rotating shaft, and the infrared inductive switch is connected with the motor; the exhaust fan and the infrared sensing probe are arranged above the urinal or the toilet bowl. In the use process, alternating current commercial power supplies power to the exhaust fan through the infrared induction switch, the infrared induction switch is used for sensing that a human body approaches to or leaves from the urinal or the toilet bowl, the alternating current commercial power is controlled to electrify or cut off the exhaust fan, the automatic ventilation of the toilet is realized, and the exhaust fan is arranged above the urinal or the toilet bowl, so that the lower exhaust of the toilet is realized.
Description
Technical Field
The utility model relates to an exhaust apparatus technical field, more specifically relates to an exhaust device under lavatory of automatic function of taking a breath.
Background
At present, most bathroom is in order to guarantee the circulation of air in the bathroom, all can select to install an exhaust fan additional in the bathroom, and the mounted position of exhaust fan is generally close to the ceiling of bathroom, and the mounted height is higher than human normal height, when the exhaust fan during operation, dirty gas in the bathroom discharges through the exhaust fan from bottom to top, because contain a lot of bacteria in the excrement, the bacterium in the excrement can mix in dirty gas, when dirty gas was taken out, dirty gas that at this moment contains the bacterium can be inhaled through people's mouth nose and part by the human body, cause bacterial infection easily to the human body, influence user's health, lead to the easy illness of user. In addition, the existing exhaust fans are basically controlled by switches, and the exhaust fans are easy to forget to turn off after being used, so that resource waste is easy to cause.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art the lavatory in dirty gas exhaust inefficiency, cause bacterial infection's defect to the human body easily, provide an automatic exhaust device under lavatory of function of taking a breath.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a lower air exhaust device of a toilet with an automatic air exchange function comprises an exhaust fan and an infrared sensing switch, wherein the infrared sensing switch comprises an infrared sensing probe, the exhaust fan comprises an exhaust fan blade and a motor, the motor is fixedly connected with the exhaust fan blade through a rotating shaft, and the infrared sensing switch is connected with the motor; the exhaust fan and the infrared sensing probe are arranged above the urinal or the toilet bowl; the alternating current commercial power supplies power to the exhaust fan through the infrared induction switch, and the infrared induction switch is used for inducing a human body to approach or leave the urinal or the toilet bowl and controlling the alternating current commercial power to electrify or cut off the exhaust fan.
In the technical scheme, the automatic ventilation of the toilet is realized by combining the exhaust fan and the infrared induction switch, and the exhaust fan is arranged above the urinal or the toilet bowl to realize the lower ventilation of the toilet. When a person approaches the urinal or the toilet bowl to use the toilet, the infrared induction switch drives the exhaust fan to start, so that the exhaust fan is automatically driven to start; when a person leaves the urinal or the toilet bowl, the infrared induction switch controls the exhaust fan to be powered off, and the exhaust fan is automatically closed.
Preferably, the infrared sensing switch further comprises a control circuit board, the output end of the infrared sensing probe is electrically connected with the input end of the control circuit board, and the output end of the control circuit board is electrically connected with the motor.
Preferably, the control circuit board comprises a microprocessor, a rectifying and filtering circuit, a DC-DC voltage reduction and stabilizing circuit and a power switch circuit, wherein:
the input ends of the rectification filter circuit and the power switch circuit are used as the input ends of the control circuit board and are respectively connected with alternating current commercial power;
the output end of the rectification filter circuit is connected with the input end of the DC-DC voltage reduction and stabilization circuit;
the output end of the DC-DC voltage reduction and stabilization circuit is electrically connected with the power supply end of the infrared induction probe and the power supply end of the microprocessor respectively, and the DC-DC voltage reduction and stabilization circuit is used for providing a low-voltage direct-current power supply for the microprocessor;
the output end of the infrared sensing probe is connected with the input end of the microprocessor;
the output end of the microprocessor is connected with the input end of the power switch circuit;
the output end of the power switch circuit is connected with a motor of the exhaust fan and used for controlling the starting and stopping states of the exhaust fan.
Preferably, the control circuit board further comprises a delay circuit, an input end of the delay circuit is connected with an output end of the microprocessor, and an output end of the delay circuit is connected with an input end of the power switch circuit.
Preferably, the system also comprises an electromagnetic control valve, the water inlet pipe of the urinal or the toilet bowl is connected with a tap water pipe through the electromagnetic control valve, and the power switch circuit is electrically connected with the electromagnetic control valve; the infrared inductive switch controls the on-off of the electromagnetic control valve.
Preferably, the exhaust fan further comprises a front shell and a rear shell, wherein the front shell and the rear shell are buckled with each other, and an accommodating cavity is formed inside the front shell and the rear shell; the exhaust fan blades and the motor are arranged in the accommodating cavity, and the motor is arranged on the rear shell; the position of the front shell corresponding to the infrared sensing probe is provided with an infrared through hole, and the rear shell is connected with an external exhaust pipeline.
Preferably, the infrared through hole is provided with a Fresnel lens for increasing the sensing sensitivity of the infrared sensing switch, enlarging the detection angle of the infrared sensing switch and preventing the detection from being not in place.
Preferably, the front housing is provided with an air suction opening corresponding to the position of the exhaust fan blade.
Preferably, the distance H1 that the air suction opening of the exhaust fan is arranged at the defecation opening of the urinal or the toilet bowl is less than 0.5 m.
Preferably, the exhaust inlet of the exhaust fan is arranged less than 1 meter away from the ground.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is: the exhaust fan and the infrared sensing probe are arranged above the urinal or the toilet bowl, so that the lower exhaust function is realized, the dirty gas is discharged from the lower part in time, and bacteria mixed in the dirty gas can be prevented from being sucked by a human body; the infrared induction switch is used for controlling the starting of the exhaust fan, so that the automatic ventilation function of the lower exhaust device of the toilet is realized.
Drawings
Fig. 1 is a simplified schematic view of a toilet lower air discharge device with an automatic ventilation function according to embodiment 1.
Fig. 2 is a schematic structural view of an exhaust fan in embodiment 1.
Fig. 3 is a schematic view showing the installation of the embodiment 1 in a toilet in which the wall-hung urinal is installed.
FIG. 4 is a schematic view showing the installation of embodiment 1 in a lavatory with a squatting pan.
FIG. 5 is a schematic view showing the installation of embodiment 1 in a lavatory in which a toilet is installed.
Fig. 6 is a circuit connection diagram of the control circuit board of embodiment 2.
Fig. 7 is a circuit connection diagram of the control circuit board of embodiment 4.
The device comprises an exhaust fan 1, an exhaust fan 11, an exhaust fan blade 12, a motor 13, a rotating shaft 14, a front shell, a rear shell 15, an infrared through hole 16, a Fresnel lens 17, an air suction opening 18, an infrared induction switch 2, an infrared induction probe 21, a control circuit board 22, a microcontroller 221, a rectifying and filtering circuit 222, a 223-DC-DC voltage reduction and stabilization circuit 224, a power switch circuit and an electromagnetic control valve 3.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
The present embodiment proposes a toilet lower air discharge device with an automatic ventilation function, which is a simplified schematic view of the toilet lower air discharge device with an automatic ventilation function of the present embodiment, as shown in fig. 1.
The toilet lower air exhausting device with the automatic air exchanging function provided by the embodiment comprises an exhaust fan 1 and an infrared sensing switch 2, wherein the infrared sensing switch 2 comprises an infrared sensing probe 21, the exhaust fan 1 is electrically connected with the infrared sensing switch 2, and the exhaust fan 1 and the infrared sensing probe 21 are arranged above a urinal or a toilet bowl; alternating current commercial power supplies power to the exhaust fan 1 through the infrared induction switch 2. Specifically, the infrared ray induction switch 2 is used for inducing a human body to approach or leave a urinal or a toilet bowl, and controlling the power on or off of the exhaust fan 1 by alternating current mains supply.
In this embodiment, the exhaust fan 1 includes an exhaust fan blade 11, a motor 12, a front housing 14, and a rear housing 15, wherein the motor 12 is fixedly connected to the exhaust fan blade 11 through a rotating shaft 13, and the infrared sensing switch 2 is connected to the motor 12; the front shell 14 and the rear shell 15 are buckled, and an accommodating cavity is formed inside the front shell and the rear shell; the exhaust fan blades 11 and the motor 12 are arranged in the accommodating cavity, and the motor 12 is arranged on the rear shell 15; an infrared through hole 16 is formed in the front shell 14 corresponding to the position of the infrared sensing probe 21, and a Fresnel lens 17 is arranged in the infrared through hole 16; an air suction opening 18 is formed in the front shell 14 corresponding to the exhaust fan blade 11; the rear housing 15 is connected to an external exhaust duct.
Fig. 2 is a schematic structural view of the exhaust fan of the present embodiment. The exhaust fan 1 and the infrared ray induction switch 2 in this embodiment are integrally installed.
In this embodiment, the distance H1 between the exhaust inlet 18 of the exhaust fan 1 and the urinal or the toilet bowl is less than 0.5 m, and the distance between the exhaust inlet 18 of the exhaust fan 1 and the ground is less than 1 m. The average height of adults is 1.7 meters, the total installation height of the exhaust fan is smaller than 1.0 meter, so that when the exhaust fan discharges foul gas, a part of the exhaust fan is prevented from being sucked by a human body, bacteria mixed in the foul gas are prevented from being sucked by the human body as far as possible, the human body is ensured not to be easily infected by the bacteria, and the human body is kept healthy.
The toilet lower air exhausting device with the automatic air exchanging function provided by the embodiment can be applied to a toilet provided with a wall-hung urinal, a pedestal pan and a squatting pan, and if the urinal is the wall-hung urinal, the exhaust fan 1 is arranged above the urinal; if the toilet bowl is a pedestal pan, the exhaust fan 1 is arranged above the toilet bowl; if the toilet bowl is a squatting pan, the toilet bowl also comprises a flushing water tank, and the exhaust fan 1 is arranged at any position between the toilet bowl and the flushing water tank.
As shown in fig. 3 to 5, the present embodiment is a schematic view illustrating an installation of the toilet lower air discharging device with an automatic ventilation function in a toilet in which a wall-mounted urinal, a toilet bowl, and a squatting pan are installed.
In the specific implementation process, the infrared sensing switch 2 is used for sensing that a human body approaches or leaves the urinal or the toilet bowl: when a person approaches the urinal or the toilet to use the toilet, the infrared sensing probe 21 senses and sends an electric signal to the infrared sensing switch 2, the infrared sensing switch 2 is switched on to work, at the moment, alternating current commercial power supplies power to the motor 12 in the exhaust fan 1 through the infrared sensing switch 2, the motor 12 drives the rotating shaft 13 to drive the exhaust fan blade 11 to rotate, and the exhaust fan 1 is driven to start; when a person leaves the urinal or the toilet, the infrared sensing probe 21 stops sending the electric signal to the infrared sensing switch 2, the infrared sensing switch 2 is turned off, and the alternating current commercial power stops supplying power to the motor 12, so that the exhaust fan 1 is controlled to stop working.
Example 2
In this embodiment, an infrared sensor switch 2 is modified from the toilet lower air discharge device with automatic ventilation function proposed in embodiment 1.
In this embodiment, the infrared sensing switch 2 further includes a control circuit board 22, an output end of the infrared sensing probe 21 is electrically connected to an input end of the control circuit board 22, and an output end of the control circuit board 22 is electrically connected to the motor 12.
Specifically, the control circuit board 22 includes a microprocessor 221, a rectifying and filtering circuit 222, a DC-DC voltage reduction and stabilizing circuit 223, and a power switch circuit 224, wherein: the input ends of the rectification filter circuit 222 and the power switch circuit 224 are used as the input ends of the control circuit board 22 and are respectively connected with the alternating current commercial power; the output end of the rectifying and filtering circuit 222 is connected with the input end of the DC-DC voltage reduction and stabilization circuit 223; the output end of the DC-DC voltage reduction and stabilization circuit 223 is electrically connected with the power supply end of the infrared induction probe 21 and the power supply end of the microprocessor 221 respectively, and the DC-DC voltage reduction and stabilization circuit 223 is used for providing a low-voltage direct-current power supply for the microprocessor 221; the output end of the infrared sensing probe 21 is connected with the input end of the microprocessor 221; the output end of the microprocessor 221 is connected with the input end of the power switch circuit; the output end of the power switch circuit 224 is connected with the motor 12 of the exhaust fan 1, and is used for controlling the on-off state of the exhaust fan 1.
As shown in fig. 6, it is a circuit connection diagram of the control circuit board 22 of the present embodiment.
In the specific implementation process, after the ac mains is rectified, filtered, and voltage-reduced and stabilized by the rectifying and filtering circuit 222 and the DC-DC voltage-reduced and stabilized circuit 223, a stable 5V DC power supply is obtained for supplying power to the microprocessor 221. When a person approaches the urinal or the toilet to use the toilet, the infrared sensing probe 21 senses and sends an electric signal to the microprocessor 221, the microprocessor 221 controls the power switch circuit 224 to be conducted to work, the power switch circuit 224 supplies power to the motor 12 in the exhaust fan 1, and the motor 12 drives the rotating shaft 13 to drive the exhaust fan blade 11 to rotate so as to drive the exhaust fan 1 to start; when the person leaves the urinal or the toilet, the infrared sensor probe 21 stops sending the electric signal to the microprocessor 221, and the microprocessor 221 controls the power switch circuit 224 to stop supplying power to the motor 12, thereby controlling the exhaust fan 1 to stop operating.
Example 3
In this embodiment, a delay circuit is added to the control circuit board 22 based on the toilet lower air exhausting device with automatic ventilation function proposed in embodiment 2, wherein the input terminal of the delay circuit is connected to the output terminal of the microprocessor, and the output terminal of the delay circuit is connected to the input terminal of the power switch circuit.
In the specific implementation process, the control circuit board 22 controls the exhaust fan 1 to be turned off in a delayed manner through the delay circuit, that is, after a person leaves the toilet, the exhaust fan 1 is turned off automatically after a delay time preset by the delay circuit, so that dirty air in the toilet can be discharged sufficiently, and fresh air in the toilet can be kept constantly.
Example 4
In this embodiment, an electromagnetic control valve 3 is added to the toilet lower air exhaust device with automatic ventilation function proposed in embodiment 3, and a power switch circuit 224 is electrically connected to the electromagnetic control valve 3; the inlet pipe of the urinal or the toilet bowl is connected to the tap water pipe through the electromagnetic control valve 3.
Fig. 7 is a circuit diagram of the control circuit board of the present embodiment.
In the specific implementation process, the control circuit board 22 controls the exhaust fan 1 to be closed in a delayed mode through the delay circuit, meanwhile, after a person leaves the toilet after using the toilet, the microcontroller 221 controls the electromagnetic control valve 3 to be powered on through the delay circuit, the urinal or the toilet is flushed, the power supply is automatically cut off after 5-15 seconds, and the electromagnetic control valve is closed. Wherein, the time of time delay bath can be adjusted according to user's actual conditions, realizes automatic flushing, intelligent control, convenient to use.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The toilet lower air exhaust device with the automatic air exchange function is characterized by comprising an exhaust fan and an infrared sensing switch, wherein the infrared sensing switch comprises an infrared sensing probe, the exhaust fan comprises exhaust fan blades and a motor, the motor is fixedly connected with the exhaust fan blades through a rotating shaft, and the infrared sensing switch is connected with the motor; the exhaust fan and the infrared sensing probe are arranged above the urinal or the toilet bowl.
2. The toilet lower air discharging device with automatic air exchanging function according to claim 1, wherein: the infrared induction switch further comprises a control circuit board, the output end of the infrared induction probe is electrically connected with the input end of the control circuit board, and the output end of the control circuit board is electrically connected with the motor.
3. The toilet lower air discharging device with automatic air exchanging function according to claim 2, wherein: the control circuit board comprises a microprocessor, a rectification filter circuit, a DC-DC voltage reduction and stabilization circuit and a power switch circuit, wherein the microprocessor, the rectification filter circuit, the DC-DC voltage reduction and stabilization circuit and the power switch circuit are integrated, and the control circuit board comprises:
the input ends of the rectification filter circuit and the power switch circuit are used as the input ends of the control circuit board and are respectively connected with alternating current mains supply;
the output end of the rectification filter circuit is connected with the input end of the DC-DC voltage reduction and stabilization circuit;
the output end of the DC-DC voltage reduction and stabilization circuit is electrically connected with the power supply end of the infrared induction probe and the power supply end of the microprocessor respectively;
the output end of the infrared sensing probe is connected with the input end of the microprocessor;
the output end of the microprocessor is connected with the input end of the power switch circuit;
and the output end of the power switch circuit is connected with the motor of the exhaust fan.
4. The toilet lower air discharging device with automatic air exchanging function according to claim 3, wherein: the control circuit board further comprises a delay circuit, the input end of the delay circuit is connected with the output end of the microprocessor, and the output end of the delay circuit is connected with the input end of the power switch circuit.
5. The toilet lower air discharging device with automatic air exchanging function according to claim 4, wherein: the device also comprises an electromagnetic control valve, and the power switch circuit is electrically connected with the electromagnetic control valve; the water inlet pipe of the urinal or the toilet bowl is connected with a tap water pipe through the electromagnetic control valve.
6. The toilet lower air discharge device with an automatic air change function according to any one of claims 2 to 5, wherein: the exhaust fan also comprises a front shell and a rear shell, wherein the front shell and the rear shell are buckled and form an accommodating cavity inside; the exhaust fan blades and the motor are arranged in the accommodating cavity, and the motor is arranged on the rear shell; an infrared through hole is formed in the front shell corresponding to the position of the infrared sensing probe; the rear shell is connected with an external exhaust pipeline.
7. The toilet lower air discharging device with automatic air exchanging function according to claim 6, wherein: and a Fresnel lens is arranged at the position of the infrared through hole.
8. The toilet lower air discharging device with automatic air exchanging function according to claim 6, wherein: an air suction opening is formed in the front shell corresponding to the exhaust fan blade.
9. The toilet lower air discharging device with automatic air exchanging function according to claim 8, wherein: the distance H1 that the inlet scoop of the exhaust fan is arranged at the defecation outlet of the urinal or the toilet bowl is less than 0.5 m.
10. The toilet lower air discharging device with automatic air exchanging function according to claim 8, wherein: the exhaust inlet of the exhaust fan is arranged less than 1 meter away from the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020289975.1U CN212250545U (en) | 2020-03-10 | 2020-03-10 | Toilet lower exhaust device with automatic ventilation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020289975.1U CN212250545U (en) | 2020-03-10 | 2020-03-10 | Toilet lower exhaust device with automatic ventilation function |
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| Publication Number | Publication Date |
|---|---|
| CN212250545U true CN212250545U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020289975.1U Active CN212250545U (en) | 2020-03-10 | 2020-03-10 | Toilet lower exhaust device with automatic ventilation function |
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| CN (1) | CN212250545U (en) |
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- 2020-03-10 CN CN202020289975.1U patent/CN212250545U/en active Active
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