Fully automatic sensor-type hand washing basin

Abstract

To provide a fully automatic sensor-type hand washing basin that prevents backflow of water, avoids water contamination or leakage when the device is stopped, reduces the risk of bacterial growth, thoroughly disinfects the water in front of the spout, and enhances the user's interaction experience. [Solution] The fully automatic sensor-type hand washing basin includes a housing assembly consisting of upper and lower housings fitted together to form a main frame, a door mechanism including a door and a door lock and hingedly connected to the side of the housing assembly by a door hinge, a waterway system including a water supply port, a water purifier two-part elbow, a negative pressure valve, a self-priming pump, an ultra-high concentration ozone generator, and a water outlet, all of which are connected in sequence by a two-part PE pipe, and a sensor control module including a photoelectric switch and a control panel. A negative pressure valve is connected in series to the water supply end of the self-priming pump, and the ultra-high concentration ozone generator is integrated, and a programmable LED display for advertising is embedded in the top part of the housing.

Description

[Technical Field]

[0001] The present invention relates to the technical field of smart cleaning, and in particular to a fully automatic sensor-type hand washing basin. [Background technology]

[0002] With the increasing awareness of public health, traditional hand soap bottles are gradually being phased out of the market due to issues such as the risk of cross-infection, inconvenience in operation, and low cleaning efficiency. Traditional automatic sensor-type hand basins use infrared sensor technology to achieve contactless dispensing, but still have the following technical defects:

[0003] Traditional water channel systems lack backflow prevention design, which causes water to flow back due to gravity when not in use, leading to bacterial growth. Furthermore, the paper feed mechanism has a single structure, making it easy for the roll towels to slip off or get stuck, affecting the user experience. Traditional devices generally only meet basic hand-washing needs and lack intelligent interaction functions (such as status indication and advertising promotions), making it difficult to adapt to the needs of multi-functional scenarios in public places. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem that the present invention aims to solve is to provide a fully automatic sensor-type hand washing basin, aiming to overcome the shortcomings of the prior art and solve the problems of the background art. [Means for solving the problem]

[0005] In order to achieve the above object of the invention, the first aspect of the invention provides a fully automatic sensor-type hand washing basin, which comprises: a housing assembly that comprises an upper housing and a lower housing fitted together to form a main body frame; a door mechanism hingedly connected to a side of the housing assembly by a door hinge, the door mechanism including a door, a door lock, and a door lock switch attached to the top of the housing assembly for controlling opening and closing; a waterway system including a water supply port, a water purifier two-part elbow, a negative pressure valve, a self-priming pump covered with a silicone cover for the self-priming pump, an ultra-high concentration ozone generator, and a water outlet, which are connected in sequence by a two-part PE pipe; a sensor control module including a photoelectric switch mounted directly behind the spout by a photoelectric switch fixing bracket, and a control panel; a paper feed mechanism including a first fixed paper feed head plate and a second fixed paper feed head plate arranged symmetrically, a paper feed guide rod connected to span the plate, a removably attached roll towel, and a paper feed head that drives the roll towel; power supply means including a power adapter, an electrical plug, and a power switch; and man-machine interaction means including an advertising display and status indicator lights provided on the front of the housing; The photoelectric switch attached to the photoelectric switch fixing bracket detects the user's hand and triggers the self-priming pump to dispense water, and starts the paper feed head one second after the hand is removed.

[0006] Optionally, the paper feeding mechanism further includes a first roll towel fixing bracket and a second roll towel fixing bracket arranged symmetrically, and the roll towel is attached between the first roll towel fixing bracket and the second roll towel fixing bracket.

[0007] Optionally, an advertising machine mounting structure including a first advertising machine mounting bar and a second advertising machine mounting bar arranged parallel to one another is provided on one side of the housing assembly, and an advertising display is removably fixed to the mounting bar and embedded in the door mechanism; The advertising display is an LED display.

[0008] Optionally, the waterway system has a negative pressure valve connected in series to the water supply end of the self-priming pump to prevent backflow of water, and an outlet connected to the output end of the ultra-high concentration ozone generator to achieve water disinfection.

[0009] Optionally, a drain port is provided at the bottom of the lower housing, and the drain port is positioned lower than the mounting surface of the self-priming pump.

[0010] Optionally, the control panel is provided inside the housing assembly, and the control panel has integrated therein delay control logic configured to trigger the paper feed operation with a delay of exactly 1±0.2 seconds after the hand leaves the sensor area.

[0011] Optionally, a wire clamp for fixing an output wire of a power adapter is provided on the rear side of the upper housing, and a top cover for a main body case is provided on the top part of the upper housing.

[0012] Optionally, the status indicator lights are located on the front side of the upper housing, and the status indicator lights are monochromatic and indicate power status, paper out alarm, and fault code, respectively.

[0013] (Effect of the invention) The beneficial effects of the present invention are as follows: 1. In this fully automatic sensor-operated hand basin, a negative pressure valve is connected in series to the water supply end of the self-priming pump to effectively prevent water backflow, avoiding water contamination or leakage when the device is stopped and reducing the risk of bacterial growth. An ultra-high concentration ozone generator is integrated to thoroughly disinfect the water in front of the spout, achieving an antibacterial rate of 99.9% after detection, meeting the needs of scenes with high hygiene standards. A programmable advertising LED display is embedded in the top of the housing to support the display of dynamic promotional content, and a single-color status indicator provides real-time feedback on the device's operating status, enhancing the user's interaction experience. 2. In the fully automatic sensor-operated hand washing basin of this invention, the first and second towel roll fixing brackets are symmetrically arranged, and together with the paper feed guide rod, they ensure a firm installation of the towel roll and a stable paper feed process, preventing paper jams or misalignment. The paper feed head is equipped with an accurate delay logic of 1±0.2 seconds on the control panel, which automatically feeds paper after the user has washed their hands, reducing resource waste and improving ease of operation. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a structural schematic diagram of a fully automatic sensor-type hand washing basin provided by one exemplary embodiment of the present invention. [Figure 2] FIG. 2 is a structural diagram of a fully automatic sensor-type hand washing basin provided by one exemplary embodiment of the present invention after the door mechanism has been removed. [Figure 3] 1 is a schematic diagram showing the internal structure of a fully automatic sensor-type hand washing basin provided by one exemplary embodiment of the present invention. [Figure 4] 1 is a schematic diagram of the rear structure of a fully automatic sensor-type hand washing basin provided by one exemplary embodiment of the present invention.

[0015] The realization of the object, the function features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the drawings. DETAILED DESCRIPTION OF THE INVENTION

[0016] The specific embodiments described herein do not limit the present invention, but are merely used to interpret the present invention.

[0017] In the description of the present invention, unless otherwise expressly specified or limited, the terms "attached," "coupled," "connected," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, or a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or even to internal communication between two elements or an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific circumstances.

[0018] Referring to Figures 1 to 4, one embodiment of the present invention provides a fully automatic sensor-type hand washing basin, a housing assembly that constitutes a main body frame from an upper housing 4 and a lower housing 7 that are fitted together; a door mechanism hingedly connected to the side of the housing assembly by a door hinge 12, including a door 3, a door lock 15, and a door lock switch 1 attached to the top of the housing assembly for controlling opening and closing; a waterway system including a water supply port 32, a water purifier 26, a negative pressure valve 27, a self-priming pump 29 covered with a silicone cover 30 for the self-priming pump, an ultra-high concentration ozone generator 31, and a water outlet 18, which are connected in sequence by a 2-part PE pipe; a photoelectric switch 21 mounted at a position approximately 18.5 mm behind the spout 18 by a photoelectric switch fixing bracket 19, and a sensor control module including a control panel 22; a paper feed mechanism including a first fixed paper feed head plate 9 and a second fixed paper feed head plate 14 arranged symmetrically, a paper feed guide rod 10 connected to straddle the first and second fixed paper feed head plates, a removably attached roll towel 23, and a paper feed head 16 that drives the roll towel; power supply means including a power adapter 20, an electric plug 5 and a power switch 33; and man-machine interaction means including an advertising display 6 and status indicator lights 8 provided on the front of the housing; A photoelectric switch 21 attached to a photoelectric switch fixing bracket 19 triggers a self-priming pump 29 to discharge water when it detects the user's hand, and starts the paper feed head 16 one second after the hand is removed.

[0019] The housing assembly of the fully automatic sensor-type hand basin consists of an upper housing 4 and a lower housing 7, which fit together to form the main frame and create a sealed space to house the internal assembly. The door mechanism is hinged to the side of the housing with door hinges 12, and the door 3 is fixed to the housing assembly with a door lock 15. A door lock switch 1 for controlling the door's opening and closing is provided on the top of the door. The waterway system uses a two-part PE pipe to sequentially connect the water inlet 32, the two-part water purifier elbow 26, the negative pressure valve 27, the self-priming pump 29, the ultra-high concentration ozone generator 31, and the outlet 18. The self-priming pump 29 is covered with a self-priming pump silicone cover 30 to reduce noise. The sensor control module includes a photoelectric switch 21 and a control panel 22. The photoelectric switch 21 is attached below the outlet 18 with a photoelectric switch fixing bracket 19 and detects the user's hand movement. The paper feed mechanism includes a first fixed paper feed head plate 9, a second fixed paper feed head plate 14, a paper feed guide rod 10, a roll towel 23, and a paper feed head 16 that drives the paper feed. The power supply means supplies power to the device via a power adapter 20, an electric plug 5, and a power switch 33. The man-machine interaction means includes an advertising display 6 provided on the front of the housing, and a status indicator light 8 that provides real-time feedback on the device status.

[0020] A two-part PE pipe sequentially connects the water purifier two-part elbow 26, negative pressure valve 27, self-priming pump 29, and ultra-high concentration ozone generator 31, ensuring a simple and efficient water flow path and reducing the risk of leaks. A silicone cover 30 for the self-priming pump secures the self-priming pump and reduces vibration noise. The photoelectric switch 21 is accurately positioned by the photoelectric switch fixing bracket 19, ensuring reliable detection of hand movements. The control panel 22 triggers the self-priming pump 29 to dispense water in response to the signal, enabling contactless hand washing and reducing the risk of cross-infection.

[0021] In some embodiments, the paper feed mechanism further includes a first roll towel fixing bracket 24 and a second roll towel fixing bracket 25 arranged symmetrically, and the roll towel 23 is attached between the first roll towel fixing bracket 24 and the second roll towel fixing bracket 25.

[0022] The first and second towel roll fixing brackets 24 and 25 are symmetrically positioned to secure the towel roll 23 in both directions, preventing it from slipping or falling off due to uneven force and ensuring stability during the paper feeding process. The towel roll 23 is removably mounted between the brackets, allowing users to quickly replace the paper and reducing maintenance costs.

[0023] In one example, an advertising machine mounting structure is provided on one side of the housing assembly, including a first advertising machine mounting bar 11 and a second advertising machine mounting bar 13 arranged in parallel, and the advertising display 6 is removably fixed to the mounting bar and embedded in the door mechanism; The advertising display 6 is an LED display.

[0024] Furthermore, the first and second advertising machine mounting bars 11 and 13 allow for quick installation and replacement of the advertising display 6, meeting the promotional needs of different scenes. The advertising display 6 supports dynamic updates and diverse content display for its display content, improving the interactivity and commercial value of the device. The advertising display 6 is embedded in the door mechanism, reducing the complex structure of the housing front and making the device's appearance more concise and beautiful.

[0025] The advertising display 6 is an extension that integrates resource management, content management, advertisement posting, message push, terminal monitoring, custom interface, custom domain name, system management, etc., and the distribution side is connected to the terminal via communication and realizes the effect of controlling the advertising device terminal in the background.

[0026] In some embodiments, the waterway system has a negative pressure valve 27 connected in series to the water supply end of the self-priming pump 29 to prevent backflow of water, and an outlet 18 connected to the output end of the ultra-high concentration ozone generator 31 to achieve water disinfection.

[0027] In addition, the negative pressure valve 27 is connected in series to the water supply end of the self-priming pump 29, which effectively prevents water from flowing backward and prevents water contamination or leakage when the machine is stopped. The ultra-high concentration ozone generator 31 disinfects the water before the water outlet 18, killing bacteria and viruses and ensuring the cleanliness of the water for hand washing, which is particularly suitable for public health facilities.

[0028] The negative pressure valve 27 can effectively prevent backflow of water and allows for multiple connection methods of the water inlet to be selected (for example, (1) the water supply pipe can be inserted into a water tank; (2) the water inlet can be connected to a water pipe).

[0029] In some embodiments, a drain port 17 is provided at the bottom of the lower housing 7, and the position of the drain port 17 is lower than the mounting surface of the self-priming pump 29.

[0030] The drain port 17 is located at the bottom of the lower housing 7 and is lower than the mounting surface of the self-priming pump 29, which allows condensed water or residual water inside the equipment to be easily drained, preventing water accumulation and the occurrence of rust or mold on parts.

[0031] In some embodiments, the control panel 22 is located inside the housing assembly and has integrated therein delay control logic configured to trigger the paper feed operation with a precise delay of 1±0.2 seconds after the hand leaves the sensor area.

[0032] In addition, the control panel 22 uses delay logic to ensure that paper is automatically fed after the user washes their hands, avoiding the problems of paper waste and inability to provide paper immediately due to too fast operation, improving the user experience. The delay range of 1±0.2 seconds is highly adaptable, taking into account different user hand-washing habits, and reducing the risk of false triggering or missed triggering.

[0033] In some embodiments, a wire clamp 28 for fixing the output wire of the power adapter 20 is provided on the rear side of the upper housing 4, and a top cover 2 for the main body case is provided on the top part of the upper housing 4.

[0034] The wire clamp 28 effectively secures the output wires of the power adapter 20, preventing poor contact due to loose or pulled wires, and also reduces wire exposure, improving the aesthetics of the device. The main body case top cover 2 covers the top of the upper housing 4 and further protects the internal assembly from dust and liquids, thereby enhancing the protective performance of the device.

[0035] In some embodiments, a status light 8 is provided on the front side of the upper housing 4, and the status light 8 is either solid red or flashing red to indicate power status, paper out alarm, and fault code, respectively.

[0036] The single-color status indicator light 8 is either constantly lit or flashing red to intuitively reflect the operating status of the equipment, such as power on, out of paper, or malfunction, allowing the user to quickly recognize the problem and take appropriate measures. The display of the fault code allows maintenance personnel to quickly locate the malfunctioning point of the equipment, improving maintenance efficiency and reducing downtime.

[0037] To use the device, the user must first install and test the towel roll 23 between the symmetrically arranged first and second towel roll fixing brackets 24 and 25, ensure that the towel roll 23 is connected to the paper feed head 16 via the paper feed guide rod 10, open the door 3 using the door lock switch 1, check the connection of the waterway system, and confirm that the power adapter 20 is connected to the power source via the electrical plug 5 and that the power switch 33 is on. Then, the user's hand enters the sensor area below the spout 18, triggering the photoelectric switch 21 attached to the photoelectric switch fixing bracket 19. The photoelectric switch 21 sends a signal to the control panel 22, which then activates the self-priming pump 29, disinfects the water using the ultra-high concentration ozone generator 31, and then discharges the purified water from the spout 18 to complete the hand-washing process. After the user's hand leaves the sensor area, the delay logic integrated into the control panel 22 precisely delays by 1±0.2 seconds to trigger the paper feed head 16 to automatically supply paper and provide the user with tissues to wipe their hands. If the device runs out of paper or a malfunction occurs, the status indicator light 8 will light red or flash red, prompting the user to replace the roll towel 23 or inspect the device's status. Users can also check real-time promotional content via the advertising display 6 embedded in the door mechanism. During device operation, the water channel system prevents backflow with the negative pressure valve 27, ensuring one-way water flow. Condensed or residual water can be discharged through the drain port 17 at the bottom of the lower housing 7, preventing damage to the device due to water accumulation. When performing maintenance on the device, the user simply opens the door 3 using the door hinge 12, secures the door 3 with the door lock 15, and inspects or replaces the internal assembly, eliminating the need to manually touch the device during the entire operation process. The combination of non-contact sensor water discharge, ozone disinfection, automatic paper feeding, and smart notification functions provides an efficient and hygienic hand-washing experience.

[0038] The above does not limit the patent scope of the present invention, but is merely a preferred embodiment of the present invention. Any equivalent structure or equivalent process transformation completed using the contents of the specification and drawings of the present invention, or any directly or indirectly applicable to other related technical fields, are also within the patent protection scope of the present invention. [Explanation of symbols]

[0039] 1 Door lock switch 2 Main unit case top cover 3-door 4 Upper housing 5. Electrical plug 6. Advertising displays 7 Lower housing 8 Status indicator light 9 First fixed paper feed head plate 10 Paper feed guide rod 11 First advertising machine mounting bar 12 Door hinges 13 Second advertising machine mounting bar 14 Second fixed paper feed head plate 15 Door Lock 16 Paper feed head 17 Drain 18 Spout 19 Photoelectric switch fixing bracket 20 Power Adapter 21 Photoelectric switch 22 Control Panel 23 Roll towels 24 First roll towel fixing bracket 25 Second roll towel fixing bracket 26 Water Purifier 2-minute Elbow 27 Negative pressure valve 28 Wire clamp 29 Self-priming pump 30 Silicone cover for self-priming pump 31 Ultra-high concentration ozone generator 32 Water inlet 33 Power switch

Claims

1. A fully automatic sensor-type hand washing basin, a housing assembly that forms a main body frame by fitting an upper housing (4) and a lower housing (7) together; a door mechanism hinged to the side of the housing assembly by a door hinge (12), including a door (3), a door lock (15), and a door lock switch (1) attached to the top of the housing assembly for controlling opening and closing; a waterway system including a water supply port (32), a water purifier two-part elbow (26), a negative pressure valve (27), a self-priming pump (29) covered with a silicone cover (30) for the self-priming pump, an ultra-high concentration ozone generator (31), and a water outlet (18), which are connected in sequence by a two-part PE pipe; a sensor control module including a photoelectric switch (21) mounted directly behind the spout (18) by a photoelectric switch fixing bracket (19) and a control panel (22); a paper feed mechanism including a first fixed paper feed head plate (9) and a second fixed paper feed head plate (14) arranged symmetrically, a paper feed guide rod (10) connected across the plate, a removably attached roll towel (23), and a paper feed head (16) that drives the roll towel; a power supply means including a power adapter (20), an electric plug (5) and a power switch (33); and man-machine interaction means including an advertising display (6) and status indicator lights (8) provided on the front of the housing; This fully automatic sensor-type hand washing basin is characterized in that a photoelectric switch (21) attached to a photoelectric switch fixing bracket (19) triggers a self-priming pump (29) to discharge water when detecting a user's hand, and starts a paper feed head (16) one second after the user's hand is removed.

2. The fully automatic sensor-type hand washing basin of claim 1, characterized in that the paper feeding mechanism further includes a first roll towel fixing bracket (24) and a second roll towel fixing bracket (25) arranged symmetrically, and the roll towel (23) is attached between the first roll towel fixing bracket (24) and the second roll towel fixing bracket (25).

3. An advertising machine mounting structure including a first advertising machine mounting bar (11) and a second advertising machine mounting bar (13) arranged parallel to each other is provided on one side of the housing assembly, and an advertising display (6) is removably fixed to the mounting bar and embedded in the door mechanism; The fully automatic sensor-type hand washing basin according to claim 1, characterized in that the advertising display (6) is an LED display.

4. The fully automatic sensor-type hand washing basin described in claim 1, characterized in that the waterway system has a negative pressure valve (27) connected in series to the water supply end of the self-priming pump (29) to prevent water backflow, and an outlet (18) connected to the output end of the ultra-high concentration ozone generator (31) to achieve water disinfection.

5. A fully automatic sensor-type hand washing basin as described in claim 1, characterized in that a drain outlet (17) is provided at the bottom of the lower housing (7), and the position of the drain outlet (17) is lower than the mounting surface of the self-priming pump (29).

6. The fully automatic sensor-type hand washing basin of claim 1, characterized in that the control panel (22) is provided inside the housing assembly, and the control panel (22) has integrated therein a delay control logic configured to trigger the paper feeding operation with an accurate delay of 1±0.2 seconds after the hand leaves the sensor area.

7. A fully automatic sensor-type hand washing basin as described in claim 1, characterized in that a wire clamp (28) for fixing the output wire of the power adapter (20) is provided on the rear side of the upper housing (4), and a top cover (2) for the main body case is provided on the top part of the upper housing (4).

8. The fully automatic sensor-type hand washing basin according to claim 1, characterized in that the status indicator light (8) is provided on the front side of the upper housing (4), the status indicator light (8) is monochromatic, and indicates the power status, paper out alarm, and fault code, respectively.

Images