CN111728516A - A multifunctional spray head and a hand washing device with the same - Google Patents

Abstract

The present invention provides a multifunctional spray head and a hand washing device with the spray head. The spray head includes a spray head body with a cavity, and the spray head body has at least a first inlet, a second inlet and a spray port communicated with the cavity, The cavity of the spray head body also has a guide slope or arc slope connected with the spray port, and external fluid can enter the cavity through the first inlet and the second inlet and be discharged from the spray port. The multifunctional spray head of the present invention has at least two inlets, and external water, hand sanitizer or disinfectant can enter the spray head and be discharged from the spray port of the spray head. Compared with the prior art, different fluids are discharged from the two spray heads respectively. , This solution is discharged from one nozzle. When people wash their hands, they do not need to leave the nozzle to obtain hand sanitizer or disinfectant, which is more convenient to use.

Description

A multifunctional spray head and a hand washing device with the same

technical field

The invention belongs to the technical field of hand washing, and in particular relates to a multifunctional spray head and a hand washing device with the spray head.

Background technique

Hands often touch various places and are easily exposed to bacteria and viruses (hereinafter referred to as germs). The way to deal with this problem is generally to wash your hands. The handwashing mode in public places is usually to set up a tap and a hand sanitizer bottle next to the handwashing station. When washing hands, people first squeeze out the hand sanitizer from the hand sanitizer bottle, then turn on the faucet, and then wash their hands. However, in the prior art, water and hand sanitizer need to be discharged from the faucet and the spray head of the hand sanitizer bottle respectively, that is, from the two spray heads, which is inconvenient to use.

SUMMARY OF THE INVENTION

The present invention aims to solve the technical problems existing in the prior art, and the first purpose of the present invention is to provide a multifunctional spray head to solve the technical problem of discharging water and hand soap (disinfectant) from two spray heads in the prior art question. The second object of the present invention is to provide a hand washing device having the aforementioned spray head.

In order to achieve the above-mentioned first purpose, the present invention adopts the following technical scheme: a multifunctional spray head, comprising a spray head main body with a cavity, and the spray head main body has at least a first inlet, a second inlet and an injection port communicated with the cavity, External fluid can enter the cavity through the first inlet and the second inlet and be discharged from the injection port.

In the above technical solution, the spray head has at least two inlets, and external fluids (water, hand sanitizer or disinfectant) can enter the spray head and be discharged from the spray port of the spray head. The nozzle is discharged, this scheme is discharged from one nozzle, which is more convenient to use.

In a preferred embodiment of the present invention, the first inlet and the second inlet are located at the top of the nozzle body, the injection port is located at the bottom of the nozzle body, and the centerline of the injection port is between the centerline of the first inlet or the second inlet The included angle is an obtuse angle. As a result, the external fluid enters from the top of the nozzle and is ejected obliquely backward and downward.

In a preferred embodiment of the present invention, the cavity of the main body of the spray head further has a guide slope or an arc slope connected with the spray port. Therefore, it is convenient for the hand sanitizer to flow out of the spray port smoothly, and the residue of the hand sanitizer in the spray head is reduced.

In order to achieve the above-mentioned second purpose, the present invention adopts the following technical scheme: a hand-washing device, comprising a hand-washing device main body, and the hand-washing device main body is provided with at least one layer of hand-washing sinks arranged along the height direction, and each layer of the hand-washing sink is provided with at least one layer of hand-washing sinks. One of the aforementioned spray heads, the fluid sprayed by the spray head can be discharged into the accommodating space formed by the corresponding hand sink, the first inlet of each spray head is connected to the water source through the first liquid supply pipe, and the first liquid supply pipe is equipped with a water source. There is a first valve to control its on-off, the second inlet of each nozzle passes through a second liquid supply pipe and a second liquid storage tank containing hand sanitizer or disinfectant, and the second liquid supply pipe is provided with a control on its on-off. the second valve.

In the above technical solution, the water source provides water to the nozzle for people to wash their hands, and the second liquid storage tank provides hand sanitizer or disinfectant to the nozzle, which can better wash and disinfect hands and reduce germs. Moreover, water, hand sanitizer or disinfectant is sprayed from the same nozzle. When people wash their hands, they do not have to leave the nozzle to obtain hand sanitizer or disinfectant, which is more convenient to use.

In a preferred embodiment of the present invention, the water source includes a first liquid storage tank fixed on the main body of the hand-washing device for containing water, and each spray head communicates with the first liquid storage tank through a first liquid supply pipe. Therefore, the hand washing device can be used in places without water taps, such as bus station entrances and exits, bus stops, shopping malls, school stadiums, roadside and other places.

In a preferred embodiment of the present invention, the main body of the spray head also has a third inlet that communicates with the cavity, the third inlet of each spray head is connected with a first air supply pipe connected to the air source, and each first air supply pipe The trachea is provided with a third valve.

In the above technical solution, after setting the air source and the first air supply pipe, open the first valve and the third valve, and after water and gas (such as compressed air) enter the nozzle and mix into a water-air mixture, water mist is sprayed from the nozzle to wash hands. , Due to the impact of the sprayed spray, it can help to clean people's hands and save water; after washing hands, you can first close the first valve, do not close the third valve, at this time only compressed air is sprayed from the nozzle to blow away People blow the water off their hands and then close the third valve.

In this solution, water, hand sanitizer or disinfectant is sprayed from the same nozzle, and when the hands are dried after washing hands, compressed air is also sprayed from the nozzle. During the whole washing process, people's hands do not need to leave the nozzle, which is more convenient to use. .

In another preferred embodiment of the present invention, the first liquid storage tank is provided with a first air port that communicates with the outside atmosphere, the first air port is provided with a first air filter, and the second liquid storage tank is provided with a first air filter. There is a second air port communicating with the outside atmosphere, and a second air filter is arranged at the second air port;

Or the first liquid storage tank is provided with a first air inlet, the first air inlet is communicated with a second air supply pipe connected to the air source, the second air supply pipe is provided with a fourth valve for controlling its on-off, the second air supply pipe is The liquid storage tank is provided with a second air inlet, and the second air inlet is connected with a third air supply pipe connected with the air source. Access to the first and second reservoirs is possible.

In the above technical solution, the provision of the first air vent and the second air vent can avoid the formation of negative pressure in the first liquid storage tank and the second liquid storage tank, and ensure that water, hand sanitizer or disinfectant can smoothly flow into the nozzle. Set up an air source, a second air supply pipe and a third air supply pipe, and supply compressed air to the first liquid storage tank and the second liquid storage tank, so as to replenish air and avoid formation in the first liquid storage tank and the second liquid storage tank. Negative pressure can also ensure that water, hand sanitizer or disinfectant can flow smoothly into the nozzle, and in an outdoor environment, sealing the first liquid storage tank and the second liquid storage tank can reduce the entry of pollutants.

In another preferred embodiment of the present invention, each nozzle is provided with a corresponding sensor for sensing a human hand, the signal output end of the sensor is electrically connected to the input end of the controller, and the first control end of the controller is connected to the input end of the controller. The enabling terminal of the first valve is electrically connected, and the second control terminal of the controller is electrically connected to the enabling terminal of the second valve.

In the above technical solution, for example, in a place with a lot of people, when people wash their hands, the sensor senses, the controller controls the first valve and the second valve to automatically open, and after washing the hands, the controller controls the first valve and the second valve to close, There is no need for people to manually open or close the first valve and the second valve, and it is convenient to use.

In another preferred embodiment of the present invention, each nozzle is provided with a corresponding sensor for sensing a human hand, the signal output end of the sensor is electrically connected to the input end of the controller, and the first control end of the controller is connected to the input end of the controller. The enabling terminal of the first valve and the enabling terminal of the fourth valve are respectively electrically connected, and the second control terminal of the controller is electrically connected to the enabling terminal of the second valve and the enabling terminal of the fifth valve respectively.

In the above technical solution, for example, when people wash their hands in a place with a lot of traffic, the sensor senses, the controller controls the first valve and the fourth valve to open at the same time, and the controller controls the second valve and the fifth valve to open at the same time, There is no need for people to manually open or close the first valve and air source, and it is convenient to use.

In another preferred embodiment of the present invention, an infrared thermometer is provided on the front side of the main body of the hand-washing device and/or in the hand-washing sink, and the signal output end of the infrared thermometer is connected to the monitoring terminal; and/or the The number is two or more layers, the opening of the hand-washing device is located at the front side of the hand-washing device body, and the bottom of the hand-washing device is located behind the opening of the hand-washing device; and/or the bottom of the hand-washing device body is provided with a number of wheels with brakes.

In the above technical solution, the infrared thermometer is installed to facilitate the detection of people's body temperature and upload it to the monitoring terminal to monitor the body temperature of the personnel and effectively monitor the specific conditions of the personnel; set up two or more layers of handwashing sinks, which can adapt to the handwashing work of people of different heights. , the opening of the hand washing sink is located on the front side, which is convenient for people to put their hands into the washing sink from the front end, which is more convenient to use; the setting of wheels is convenient for moving the hand washing device, which is more labor-saving.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural diagram 1 of a nozzle according to Embodiment 1 of the present application.

FIG. 2 is a second structural schematic diagram of the nozzle according to the first embodiment of the present application.

FIG. 3 is a side cross-sectional structural schematic diagram of the hand-washing device according to the second embodiment of the present application.

FIG. 4 is a partial enlarged view of part A in FIG. 3 .

FIG. 5 is a side sectional structural schematic diagram of the hand washing device according to the third embodiment of the present application.

FIG. 6 is a partial enlarged view of B in FIG. 5 .

FIG. 7 is a side cross-sectional structural schematic diagram of the hand washing device according to the fourth embodiment of the present application.

FIG. 8 is a side cross-sectional structural schematic diagram of the hand washing device according to the fifth embodiment of the present application.

FIG. 9 is a side cross-sectional structural schematic diagram of the hand washing device according to the sixth embodiment of the present application.

FIG. 10 is a side cross-sectional structural schematic diagram of the hand washing device according to the seventh embodiment of the present application.

Reference numerals in the drawings include: the main body of the hand washing device 10 , the hand washing sink 20 , the spray head 30 , the first inlet 301 , the spray port 304 , the second inlet 302 , the third inlet 303 , the first liquid storage tank 40 , the first Liquid filling port 401, first liquid outlet 402, first vent port 403, first air inlet 404, first liquid supply pipe 410, first valve 411, second liquid storage tank 50, second liquid filling port 401 , the second liquid outlet 402, the second vent port 403, the second air inlet 404, the second liquid supply pipe 510, the second valve 511, the sensor 61, the manual switch 62, the foot switch 63, the weight switch 64, Infrared thermometer 70, air source 80, first air supply pipe 810, third valve 811, second air supply pipe 820, fourth valve 821, third air supply pipe 830, fifth valve 831, sewage tank 90, sewage pipe 910 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and to simplify the description rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or two The internal communication between the elements may be directly connected or indirectly connected through an intermediate medium, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

Example 1

This embodiment provides a multi-functional spray head. As shown in FIG. 1 , in a preferred embodiment of the present invention, the spray head 30 includes a spray head body 31 with a cavity, and the top of the spray head body 31 has a first inlet 301 and The second inlet 302 has a jetting port 304 at the bottom of the shower head body 31 , and external fluid can enter the cavity through the first inlet 301 and the second inlet 302 and be discharged from the jetting port 304 .

In another preferred embodiment, the included angle between the center line of the spray port 304 and the center line of the first inlet 301 or the second inlet 302 is an obtuse angle, and the external fluid (water, hand soap or disinfectant) flows from the spray head 30 enters at the top and sprays out diagonally backward and downward. In practice, the above-mentioned included angle can be set according to the installation position and angle of the nozzle 30, and it can also be an acute angle, a right angle or 180°.

In another preferred embodiment, the cavity of the main body 31 of the spray head also has a guide slope or an arc slope connected with the spray port 304 , thereby facilitating the smooth flow of the hand sanitizer from the spray port 304 and reducing hand washing in the spray head 30 . liquid residue.

As shown in FIG. 2 , in another preferred embodiment, the top of the main body 31 of the spray head also has a third inlet 303 that communicates with the cavity, so that fluid such as compressed air can be supplied to the spray head through the third inlet 303, so that the The spray head 30 can also spray water mist or compressed air.

Embodiment 2

This embodiment provides a hand-washing device. As shown in FIG. 3, in a preferred embodiment of the present invention, it includes a hand-washing device main body 10, and the hand-washing device main body 10 is provided with at least one layer of hand-washing arranged along the height direction. Slot 20, as shown in FIG. 3, two layers of hand-washing tubs 20 are provided to adapt to the hand-washing work of people of different heights. 30. The fluid sprayed by the spray head 30 can be discharged into the accommodating space formed by the corresponding hand washing sink 20.

4, it can be seen that the first inlet 301 of each nozzle 30 is connected to the water source through the first liquid supply pipe 410, and the first liquid supply pipe 410 is provided with a first valve 411 for controlling its on-off. The second inlet 302 of 30 passes through the second liquid supply pipe 510 and the second liquid storage tank 500 containing hand sanitizer or disinfectant. The second liquid supply pipe 510 is provided with a second valve 511 for controlling its on-off, preferably the first The second valve 511 is located near the second inlet 302 .

As shown in FIG. 3 , in this embodiment, the water source includes a first liquid storage tank 40 for filling water fixed on the main body of the hand-washing device, and the first liquid storage tank 40 has a first liquid filling port 401 at the top , the first liquid outlet 402 at the bottom and the first vent 403 at the top; the first liquid filling port 401 is provided with a sealing cover, and the first liquid filling port 401 is used to add water to the first liquid storage tank 40 ; A plurality of first liquid supply pipes 410 are connected with the first liquid outlet 402 through the liquid supply main pipe, and a first air filter is provided at the first air port 403, thereby ensuring that no negative pressure is formed in the first liquid storage tank 40. pressure, the water can flow into the first nozzle 30 smoothly. It should be noted that where there is a tap, the water source can also be a tap.

As shown in FIG. 3 , in this embodiment, the second liquid storage tank 50 has a second liquid filling port 401 at the top, a second liquid outlet 402 at the bottom, and a second vent port 403 at the top; The liquid filling port 401 is also provided with a sealing cover, and the second liquid filling port 401 is used to add hand sanitizer or disinfectant to the second liquid storage tank 50; the second liquid supply pipe 510 passes through the liquid supply main pipe and the second liquid outlet. 402 is connected, and a second air filter is provided at the second air port 403 , thereby ensuring that no negative pressure is formed in the second liquid storage tank 50 , and the hand sanitizer or disinfectant can flow into the spray head 30 smoothly. The first liquid storage tank 40, the second liquid storage tank 50 and the main body 10 of the hand-washing device are integrally welded with steel plates or are separately arranged and fixed as a whole. The first liquid storage tank 40 and the second liquid storage tank 50 are both located in the hand-washing device. The top of the main body 10 is higher than the first spray head 30, and water, hand soap or disinfectant flows down to the spray head 30 by its own weight; of course, the first liquid storage tank 40 and the second liquid storage tank 50 can also be set lower than the spray head 30. However, a pump needs to be added to pressurize the fluid in the first liquid storage tank 40 and the second liquid storage tank and then deliver it to the spray head 30 .

When the second liquid storage tank 50 contains hand sanitizer, people first open the second valve 511, the hand sanitizer flows out from the nozzle 30 to the hands of the people, then close the second valve 511, and then open the first valve 411, and water is sprayed into the hand-washing sink 20 for people to wash their hands, and close the first valve 411 after washing their hands. In practice, the hand sanitizer can be diluted in advance to reduce the viscosity of the hand sanitizer and increase its fluidity, so that it can be discharged from the nozzle 30 smoothly. When the disinfectant is contained in the second liquid storage tank 50, after people wash their hands, they open the second valve 511, and the disinfectant flows out from the spray head 30 to the hands of the people for disinfection.

As shown in FIG. 3 , in this embodiment, the hand-washing sink 20 is connected with a sewage pipe 910, and the sewage pipe 910 discharges the sewage after washing hands. According to the situation, the sewage pipe 910 can directly discharge the water to the sewer pipe, or in the hand-washing device. The main body 10 is provided with a sewage tank 90 for storing sewage.

As shown in FIG. 3 , in this embodiment, the opening of the hand-washing tub 20 is located on the front side of the hand-washing device main body 10 , and the bottom of the hand-washing tub 20 is located at the rear and lower part of the opening of the hand-washing tub 20 , that is, the hand-washing tub 20 is recessed from the front to the back and downward. With the groove structure, the spray head 30 is inclined to the sink 20, which is beneficial to spray water into the sink 20. When washing hands, people's hands stretch into the sink 20 from the front.

In this embodiment, the manner of opening the first valve 411 and the second valve 511 may be manual or automatic. For example, in places where the flow of people washing hands is small, the first valve 411 and the second valve 511 can be manually opened when washing hands, and manually closed when not washing hands. The operating handles of the first valve 411 and the second valve 511 should be set to facilitate manual operation. In the place where there is no electric signal inside, the structure is simple.

When used in a public place with a large flow of people, it can be automatically opened by induction. When it is automatically opened, as shown in FIG. 1, a sensor 61 for sensing human hands is provided in the hand-washing sink 20, such as an infrared sensor. The infrared sensor can be set to On the inner wall of the front side of the sink 20, the signal output terminal of the sensor 61 is electrically connected to the enabling terminal of the controller, the first control terminal of the controller is electrically connected to the enabling terminal of the first valve 411, and the first control terminal of the controller is electrically connected to the enabling terminal of the first valve 411. The two control terminals are electrically connected to the enabling terminal of the second valve 511 . The specific method of controlling the opening or closing of the first valve 411 and the second valve 511 can be the method of inducing water from the wash basin in the prior art. For example, the output end of the inductor 61 is connected to the coil of the relay, and the two normally open contacts of the relay are respectively It is the control switch of the first valve 411 and the second valve 511, or the inductive water outlet technology of the washbasin used in restaurants such as KFC, which will not be described in detail here.

In another preferred embodiment, taking the hand sanitizer contained in the second liquid storage tank 50 as an example, for example, the controller includes a first timer and a second timer, and the signal output end of the sensor 61 is connected to the first timer. The enable terminal of the second timer is connected, the timing output terminal of the second timer is connected to the control terminal of the second valve 511, the stop terminal of the second timer is connected to the start terminal of the first timer, and the timing of the first timer The output end is connected to the control end of the first valve 411 . Or the controller includes a first time relay and a second time relay, the signal output terminal of the sensor 61 is connected in series with the input loop of the second time relay, and the normally open contact of the second time relay is connected to the control terminal of the second valve 511, The normally closed contact of the second time relay is connected in series with the input circuit of the first time relay, and the normally open contact of the first time relay is connected to the control end of the first valve 411 .

The timing time of the timer and the time relay can be preset. After the sensor 61 senses the human hand, the timing terminal of the second timer or the second time relay starts to time, and the second timer or the second time relay outputs an on signal (for example, a high power level), open the second valve 511, and drop the handwash on people's hands, for example, after 3s (or other time), the second timer or the second time relay counts up the time, the second timer or the second time relay The output is reversed (eg, low level), the dripping of the hand sanitizer is stopped, and the second valve 511 is closed. At this time, the first timer or the first time relay starts timing, and the first timer or the first time relay outputs an opening signal (eg, a high level), and the first valve 411 is opened, the water is sprayed from the nozzle 30, and people start to wash their hands, For example, after 15s (or other time), the time of the first timer or the first time relay expires, the output of the first timer or the first time relay is reversed (eg low level), the hand washing is over, and the first valve is closed 411; During this period, people's hands leave the sensor 61, and when the sensor is sensed again, the timer is reset.

As shown in FIG. 3 , in another preferred embodiment, an infrared thermometer 70 is provided on the front side of the main body 10 of the hand-washing device and/or in the hand-washing sink 20 , and the signal output end of the infrared thermometer 70 is connected to the monitoring terminal. connect. The monitoring terminal can be a device such as a mobile phone or a computer, thereby monitoring the body temperature of the personnel and effectively monitoring the specific conditions of the personnel.

Specifically, when the shower head 30 sprays water to wash hands, the infrared thermometer 70 is installed on the front outer wall of the main body 10 of the hand-washing device. Infrared thermometer, of course, the forehead temperature gun probe in the prior art can also be used to measure hand temperature; when the nozzle 30 sprays to wash hands, the infrared thermometer 70 is installed on the front outer wall of the main body 10 of the hand washing device or the hand washing sink 20 Among them, when installed in the hand washing sink 20, it can be installed near the nozzle 30, and the infrared thermometer 70 can be a forehead temperature gun probe in the prior art. When people wash their hands, the forehead temperature gun probe measures the temperature of people's hands. Measurement.

In another preferred embodiment, the bottom of the hand-washing device body 10 is provided with several wheels with brakes (not shown in the figure), so that people can push the hand-washing device to a set position, and lock the wheels to realize hand-washing The position of the device is fixed.

Embodiment 3

The structure principle of this embodiment is basically the same as that of the second embodiment, the difference is that when washing hands, the spray head 30 sprays water mist. As shown in FIG. 5 , in a preferred embodiment, the inlet of each nozzle 30 is further connected with a first air supply pipe 810 connected to the air source 80 , and each first air supply pipe 810 is provided with a third air supply pipe 810 . Valve 811. Referring to FIG. 6 , in this embodiment, one end of the first air supply pipe 810 away from the air source 80 is connected to the third inlet 303 of the shower head 30 .

In this embodiment, the air source 80 may be an air compressor or an air storage tank containing compressed air. When washing hands, the air source 80 provides compressed gas to the nozzle 30 through the first air supply pipe 810, the compressed gas and water are mixed in the nozzle 30 to form a water-air mixture, and then sprayed from the nozzle 30 to the sink 20 for people to wash their hands; After that, people can first close the first valve 411 without closing the third valve 811. At this time, only the compressed air is sprayed from the nozzle 30 to blow off the water on people's hands, and then close the third valve 811 after blowing off the water on their hands. .

In this embodiment, the manner of opening the third valve 811 may be manual or automatic. When manually opening, the operating handle of the third valve 811 should be located at a place convenient for human operation. When it is automatically turned on, the third control terminal of the controller is electrically connected to the enabling terminal of the third valve 811. For example, the controller also includes a third timer, and the output terminal of the sensor 61 is also connected to the enabling terminal of the third timer. , the timing output terminal of the third timer is connected to the switch control terminal of the third valve 811 . The timing time of the third timer is longer than that of the first timer. After the sensor 61 senses the human hand, the first timer and the third timer start to count, and the first timer and the third timer output an on signal (for example, a high level). , open the first valve 411 and the third valve 811, people start to wash their hands, for example, after 15s (or other time), the first timer counts up, the output of the first timer is reversed (for example, low level), washing hands End, close the first valve 411 . At this time, the third timer is still counting, and the third valve 811 is kept open, only blowing air, blowing off the water on the hand, after blowing for 10s (or other time), the third timer counts up, and the output of the third timer is reversed. turn (eg, low level) to close the third valve 811 .

It is worth noting that when the time relay solution is adopted, a third time relay can be used to control the action of the third valve 811 , and its connection method and working principle are the same as those described above, and will not be repeated here.

In another preferred embodiment, the water outlet of the first liquid storage tank 40 or the water supply main pipe is provided with a water pump 420, so that when the pressure of the compressed air in the first air supply pipe 810 is greater than that of the water in the first liquid supply pipe 410 When the pressure of the first liquid supply pipe 410 is higher than the pressure of the compressed air in the first air supply pipe 810, the pressure of the water in the first liquid supply pipe 410 is pressurized by the water pump 420, so as to prevent the compressed air from flowing back into the first liquid supply pipe 410 and ensure the first liquid storage. The water in the tank 40 can be discharged into the spray head 30 through the first liquid supply pipe 410 .

In this embodiment, the water pump 420 is a variable pump, which is normally open; or the timing output end of the first timer is connected to the enabling end of the water pump 420 , so that the water pump 420 is turned on or off synchronously with the first valve 411 . In this embodiment, since the water pump 420 is provided, the first liquid storage tank 40 can be provided at a position lower than the spray head 30 .

It should be pointed out that, in this embodiment, the manner of controlling the opening or closing of the second valve 511 is the same as that in the second embodiment, and details are not repeated here.

Embodiment 4

The structural principle of this embodiment is basically the same as that of the second embodiment, except that the first vent 403 is not provided on the first liquid storage tank 40 and the second vent 503 is not provided on the second liquid storage tank 50 In an outdoor environment, the closure of the first liquid storage tank 40 and the second liquid storage tank 50 can reduce the entry of pollutants.

As shown in FIG. 7 , in a preferred embodiment, a first air inlet 404 is opened at the bottom of the first liquid storage tank 40 , and the first air inlet 404 communicates with a second air supply pipe connected to the air source 80 . 820 , the second gas supply pipe 820 is provided with a fourth valve 821 for controlling its on-off, and the gas provided by the gas source 80 can enter the first liquid storage tank 40 . The bottom of the second liquid storage tank 50 is provided with a second air inlet 404, the second air inlet 404 is connected with a third air supply pipe 830 connected to the air source 80, and the third air supply pipe 830 is provided with a control device to control its on-off. The fifth valve 831 , the gas provided by the gas source 80 can enter the second liquid storage tank 50 .

In this embodiment, the end of the second air supply pipe 820 away from the air source 80 can be directly connected to the first air inlet 404 or extended into the first liquid storage tank 40 and located above the liquid level; the third air supply pipe 830 is far away from the air One end of the source 80 may be directly connected to the second air inlet 404 or protrude into the second reservoir 50 above the liquid level.

In this embodiment, the manner of opening the fourth valve 821 and the fifth valve 831 may be manual or automatic. When manually opened, the operating handles of the fourth valve 821 and the fifth valve 831 should be located at a place that is convenient for people to operate. When it is automatically turned on, the first control end of the controller is electrically connected to the enabling end of the first valve 411 and the enabling end of the fourth valve 821 respectively, and the second control end of the controller is electrically connected to the enabling end of the second valve 511 and The enabling ends of the fifth valve 831 are respectively electrically connected. Specifically, the timing output terminal of the second timer of the controller is electrically connected to the control terminals of the second valve 511 and the fifth valve 831 respectively, the stop terminal of the second timer is connected to the start terminal of the first timer, and the controller The timing output end of the first timer is electrically connected to the control ends of the first valve 411 and the fourth valve 821 respectively.

Therefore, when the first valve 411 is opened, the fourth valve 821 is also opened, and the compressed gas provided by the gas source 80 enters the first liquid storage tank 40 through the second gas supply pipe 820. The source 80 supplies air to the first liquid storage tank 40 to avoid negative pressure in the first liquid storage tank 40 . When the second valve 511 is opened, the fifth valve 831 is also opened, the compressed gas provided by the air source 80 enters the second liquid storage tank 50 through the third gas supply pipe 830, and the second liquid storage tank 50 flows out the hand sanitizer or disinfectant at the same time. , the air source 80 supplies air to the second liquid storage tank 50 to prevent negative pressure from being formed in the second liquid storage tank 50 .

It is worth noting that when only the first liquid storage tank 40 is provided and the second liquid storage tank 50 is not provided, since the gas source 80 only provides compressed gas to the first liquid storage tank 40, the switch of the gas source 80 can be opened by turning on the gas source 80. In order to provide compression work to the first liquid storage tank 40, it is not necessary to set the third valve 811 on the first air supply pipe 810, then the first control end of the controller, the enabling end of the first valve 411 and the air source 80 are connected to each other. The switch enabling terminals are respectively electrically connected.

It should be pointed out that the method of delivering compressed air to the first liquid storage tank 40 and the second liquid storage tank 50 to ensure that water, hand sanitizer or disinfectant can be smoothly discharged to the nozzle 30 in this embodiment can also be used in the second embodiment, Then, the air source that supplies air to the first liquid storage tank 40 and the second liquid storage tank 50 and the air source that supplies air to the spray head 30 are the same air source, or two independently set air sources. In this embodiment, the compressed gas can be delivered to the first liquid storage tank 40 through the second gas supply pipe 820, and the water in the first liquid storage tank 40 can be sent to the first spray head 30 by the compressed gas, so there is no need to set Water pump 420 in FIG. 5 .

It is worth noting that the spray head 30 with two inlets in the first embodiment and the spray head 30 with three inlets in the third embodiment can also be used in other cleaning equipment, such as washstands for toilets, station entrances and exits in hand washing equipment, or in sole washing equipment.

Embodiment 5

The structural principle of this embodiment is basically the same as that of the second, third and fourth embodiments, and the difference lies in the different ways of activating the hand washing device. As shown in FIG. 8 , in a preferred embodiment Among them, each nozzle is provided with a corresponding manual switch 62, the manual switch 62 is installed at the opening of the hand-washing sink 20, and the manual switch 62 may be a button switch or a touch switch commonly used in the prior art. The manual switch 62 is a start switch, the connection between the manual switch 62 and the controller, the connection between the controller and the first valve 411, the second valve 511, the third valve 811, the fourth valve 821 and the fifth valve 831 is the same as the second embodiment It is the same as in the fourth embodiment, and will not be repeated here.

When people wash their hands, they press or touch the manual switch 62 to activate the hand-washing device, and the controller controls the action of each valve. Compared with the infrared induction opening, the manual switch 62 is opened by manual pressing or touching, which can give stable signals. , less interference and more stable use.

Embodiment 6

The structural principle of the present embodiment is basically the same as that of the fifth embodiment. The difference lies in the different ways of activating the hand washing device. As shown in FIG. 9 , in a preferred embodiment, each spray head 30 corresponds to There is a foot switch 63 located in the lower part of the front side of the main body 10 of the hand washing device, the foot switch 63 is also a start switch, the foot switch 63 is connected with the controller, the controller is connected with the first valve 411, the second valve 511 , the connections of the third valve 811 , the fourth valve 821 and the fifth valve 831 are the same as those of the second embodiment to the fourth embodiment, and will not be repeated here.

When people wash their hands, they step on the foot switch 63 corresponding to the spray head 30 to start the hand-washing device, and the controller controls the actions of each valve. Operated by feet, it can reduce the chance of human hands being exposed to germs.

It should be pointed out that when the hand sink 20 has two or more floors, the foot switch 63 should be marked to distinguish it. For example, as shown in FIG. , the foot switch 63 corresponding to the nozzle 30 of the high-level hand-washing sink 20 is located at a high place. In practice, the corresponding part of each floor of the hand-washing device body 10 can also be set to a different color. The color of the foot switch 63 It is provided corresponding to the hand sink 20 .

Embodiment 7

The structural principle of this embodiment is basically the same as that of the sixth embodiment, and the difference lies in that the way of starting the hand washing device is different. As shown in FIG. 10 , in a preferred embodiment, each spray head 30 corresponds to There is a weight switch 64 located at the bottom of the front side of the main body 10 of the hand washing device. The weight switch 64 can be a weight sensor or a spring switch in the prior art. The weight switch 64 is also a start switch. The connection between the weight switch 64 and the controller , the connections between the controller and the first valve 411 , the second valve 511 , the third valve 811 , the fourth valve 821 and the fifth valve 831 are the same as those in the second to fourth embodiments, and are not repeated here.

It should be pointed out that when the hand sink 20 has two or more floors, the weight switch 64 should be marked to distinguish it. For example, as shown in FIG. The weight switch 64 corresponding to the spray head 30 of the hand sink 20 is provided on the outside.

When people wash their hands, they step on the weight switch 64 corresponding to the nozzle 30 to start the hand-washing device, and the controller controls the actions of each valve. After washing their hands, after people leave the weight switch 64, the hand-washing device stops working until someone steps on the weight switch again. 64 on.

It should be noted that the method of using the foot switch 63 and the weight switch 64 to activate the hand-washing device in the sixth and seventh embodiments can also be used in other hand-washing equipment, such as a hand-washing station in a toilet.

In the description of this specification, reference to the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" or the like is meant to be combined with the description of the embodiment A particular feature, structure, material, or characteristic described or exemplified is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A multifunctional spray head comprises a spray head main body with a cavity, and is characterized in that the spray head main body is at least provided with a first inlet, a second inlet and a spray opening which are communicated with the cavity, and external fluid can enter the cavity through the first inlet and the second inlet and is discharged from the spray opening.

2. The multi-functional showerhead of claim 1, wherein the first inlet and the second inlet are located at a top portion of the showerhead body, the ejection outlet is located at a bottom portion of the showerhead body, and an included angle between a center line of the ejection outlet and a center line of the first inlet or the second inlet is an obtuse angle.

3. The multifunctional spray head according to claim 2, wherein the cavity of the spray head body is further provided with a flow guiding slope or an arc-shaped slope connected with the spray opening.

4. A hand washing device is characterized by comprising a hand washing device body, wherein at least one layer of hand washing grooves are formed in the hand washing device body in the height direction, each layer of hand washing groove is provided with at least one spray head according to any one of claims 1 to 3, fluid sprayed out of the spray heads can be discharged into a containing space formed by the corresponding hand washing grooves, a first inlet of each spray head is connected with a water source through a first liquid supply pipe, a first valve for controlling the on-off of the first liquid supply pipe is arranged on the first liquid supply pipe, a second inlet of each spray head is connected with a second liquid storage box for containing hand washing liquid or disinfectant through a second liquid supply pipe, and a second valve for controlling the on-off of the second liquid supply pipe is arranged on the second liquid supply pipe.

5. A hand washing apparatus as claimed in claim 4, wherein the water supply comprises a first reservoir for containing water secured to the body of the hand washing apparatus, each spray head being connected to the first reservoir by a first supply line.

6. The hand washing apparatus of claim 4, wherein the nozzle body further comprises a third inlet communicating with the chamber, the third inlet of each nozzle is connected to a first air supply pipe connected to an air supply, and each first air supply pipe is provided with a third valve.

7. The hand washing apparatus of claim 5, wherein the first reservoir defines a first vent opening for communication with the ambient atmosphere, the first vent opening defining a first air filter, the second reservoir defines a second vent opening for communication with the ambient atmosphere, the second vent opening defining a second air filter;

or a first air inlet is formed in the first liquid storage tank and communicated with a second air supply pipe connected with the air source, a fourth valve for controlling the on-off of the second air supply pipe is arranged on the second air supply pipe, a second air inlet is formed in the second liquid storage tank and communicated with a third air supply pipe connected with the air source, a fifth valve for controlling the on-off of the third air supply pipe is arranged on the third air supply pipe, and air provided by the air source can enter the first liquid storage tank and the second liquid storage tank.

8. The hand washing apparatus of claim 4, wherein each nozzle is correspondingly provided with a sensor for sensing a hand of a person, a signal output end of the sensor is electrically connected with an input end of the controller, a first control end of the controller is electrically connected with the enabling end of the first valve, and a second control end of the controller is electrically connected with the enabling end of the second valve.

9. The hand washing apparatus of claim 7, wherein a sensor is disposed at each nozzle to sense a hand of a person, a signal output terminal of the sensor is electrically connected to an input terminal of the controller, a first control terminal of the controller is electrically connected to the enable terminal of the first valve and the enable terminal of the fourth valve, respectively, and a second control terminal of the controller is electrically connected to the enable terminal of the second valve and the enable terminal of the fifth valve, respectively.

10. A hand washing device as claimed in any one of claims 4 to 9, wherein an infrared thermometer is provided in the front side of the hand washing device body and/or the hand washing sink, and a signal output terminal of the infrared thermometer is connected to the monitoring terminal;

and/or the number of the hand washing grooves is two or more, the opening of the hand washing groove is positioned on the front side of the hand washing device body, and the bottom of the hand washing groove is positioned behind and below the opening of the hand washing groove;

and/or the bottom of the hand washing device main body is provided with a plurality of wheels with brakes.

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