Double-payment self-service high-pressure cleaning device based on water recovery in community

Abstract

The invention relates to the technical field of self-service high-pressure cleaning, and discloses a community water recovery-based double-payment self-service high-pressure cleaning device which comprises an equipment shell, the outer wall of the equipment shell is fixedly connected with a water gun connecting pipe, and the water gun connecting pipe is detachably connected with a high-pressure water gun and a gun stock; the high-pressure water gun and the gun stock are detachably connected with an equipment shell, a water tank is fixedly connected into the equipment shell, a booster water pump is fixedly connected into the equipment shell, and the input end of the booster water pump is fixedly connected and communicated with the water tank. Waste water (reclaimed water) generated by the community water vending machine serves as a cleaning water source and is recycled to the water tank through the water inlet hole to be utilized, secondary circulation of the waste water is achieved, consumption of fresh water resources by cleaning service is reduced, community reclaimed water which is extremely low in cost and even zero in cost serves as the water source, compared with tap water, the water cost is reduced, and the water resource utilization rate is increased. Water resources can be better saved, and waste of the water resources is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of self-service high-pressure cleaning, in particular to a double-payment self-service high-pressure cleaning device based on community reclaimed water. BACKGROUND

[0002] In daily life and various commercial activities, cleaning work is ubiquitous, from daily cleaning and sweeping at home to professional fields such as car beauty, building exterior wall cleaning, etc., which require a large amount of water resources. The traditional cleaning method mainly relies on tap water, and this single water use mode has many drawbacks.

[0003] Firstly, the use of a large amount of tap water for cleaning results in a great waste of water resources. Taking the car washing industry as an example, an ordinary car needs to consume about 100-200 liters of tap water for cleaning once, and a medium-sized car washing shop may clean dozens or even hundreds of cars a day, with a considerable amount of daily water consumption. Secondly, the high water consumption of the traditional cleaning industry also brings high operating costs. In addition, the use of a large amount of tap water may also increase the amount of sewage discharge, further increasing the burden on the urban sewage treatment system, and if not properly treated, it may also pollute the environment.

[0004] Although there are some self-service cleaning devices on the market at present, most of them have the problems of single function and backward water use mode. Some self-service cleaning devices can only provide basic cleaning functions, lack effective management and utilization of water resources, still use a large amount of tap water, and cannot realize the recycling of water resources. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a double-payment self-service high-pressure cleaning device based on community reclaimed water, which solves the problem that the self-service cleaning device still uses a large amount of tap water and cannot realize the recycling of water resources.

[0006] To achieve the above purpose, the present application realizes the following technical scheme: a double-payment self-service high-pressure cleaning device based on community reclaimed water, comprising a device shell, a water gun connecting pipe is fixedly connected to the outer wall of the device shell, a high-pressure water gun and a gun stock are detachably connected to the water gun connecting pipe, the high-pressure water gun and the gun stock are detachably connected to the device shell, a water tank is fixedly connected inside the device shell, a booster water pump is fixedly connected inside the device shell, the input end of the booster water pump is fixedly connected and communicated with the water tank, the output end of the booster water pump penetrates through the device shell and is fixedly connected with the water gun connecting pipe, an advertisement area control room and a device central control room are fixedly connected to one side outer wall of the device shell.

[0007] The above solution achieves efficient water resource utilization and environmental protection goals. The device uses wastewater from community water vending machines as its water source, introducing it into a water tank through an inlet. After being pressurized by a booster pump, the wastewater is output through a high-pressure water gun for high-pressure cleaning, achieving wastewater reuse, reducing water waste, aligning with green environmental protection principles, and lowering operating costs.

[0008] Preferably, a base plate is fixedly installed on the lower surface of the equipment housing, and equipment support legs are fixedly connected to the lower surface of the base plate.

[0009] Preferably, the outer wall of the device housing is fixedly connected to at least one set of panels, and the outer wall of the panel is provided with a motherboard and a display screen, a QR code payment area, a card payment area, a start button, a stop button, a high-pressure water gun, a gunstock, etc.

[0010] Preferably, the outer wall of the device housing is provided with a T-shaped lock, and an advertising placement area is fixedly connected to the outer wall of the device housing.

[0011] Preferably, the outer wall of the water tank is fixedly connected to a drain pipe and a water inlet, one end of the drain pipe section is fixedly connected to the outer wall of the drain pipe, the other end of the drain pipe section is connected to a drain trough, and the drain trough is fixedly connected to the equipment base plate.

[0012] Preferably, it also includes a water quality monitoring module, which is located near the outlet of the water tank and includes a turbidity sensor and a particulate matter concentration sensor, for real-time monitoring of the turbidity and particulate matter concentration data of the water and transmitting the data to the motherboard in real time.

[0013] Preferably, the motherboard has a built-in water pressure dynamic algorithm unit. The water pressure dynamic algorithm unit automatically adjusts the output pressure of the booster pump according to the real-time data transmitted by the water quality monitoring module to form a closed-loop control. The water pressure dynamic algorithm unit presets at least three water quality thresholds, which correspond to different water pressure output curves, including high-pressure continuous water supply, medium-pressure pulse water supply and low-pressure intermittent water supply modes.

[0014] Preferably, the water pressure dynamic algorithm unit collects water quality data in real time at a preset period and compares it with the water quality threshold. When the water quality data exceeds the current threshold, the motherboard automatically sends a pressure adjustment command to the booster pump and simultaneously displays the water quality status and water pressure adjustment information to the user.

[0015] Preferably, it also includes a blockage warning module. When the main board detects that the water flow rate drops by more than a preset ratio, it determines that there is a partial blockage and automatically triggers the reverse flushing process. The reverse flushing process controls the booster pump to run in reverse briefly, using the reverse water flow to impact the impurities in the water gun connecting pipe, high-pressure water gun, and gun butt.

[0016] Preferably, after the reverse flushing process is executed, if the mainboard detects that the water flow rate has not returned to normal, it will display a message on the screen indicating that the equipment needs maintenance. At the same time, the mainboard will send a fault code to the background administrator and suspend the operation of the booster pump until it is manually reset.

[0017] This invention provides a dual-payment self-service high-pressure cleaning device based on community wastewater recycling. It has the following beneficial effects: 1. This invention utilizes wastewater (reclaimed water) generated by community water vending machines as a cleaning water source, recycling it through an inlet to a water tank for reuse. This achieves secondary wastewater recycling, reducing the consumption of fresh water resources by cleaning services and aligning with the environmental protection concept of green and sustainable development. Using community reclaimed water, which has extremely low or even zero cost, as a water source reduces water bills compared to using tap water, and is more conducive to conserving water resources and avoiding waste.

[0018] 2. This invention supports two mainstream non-cash payment methods: card payment and QR code payment, covering user groups of different ages and payment habits, thus improving the ease of use and popularity of the device. The device casing features a dedicated advertising area, which, combined with the advertising area control room, integrates public service with commercial advertising, opening up an additional revenue channel for operators besides cleaning service fees, thereby enhancing the project's commercial viability and profitability.

[0019] 3. This invention, through its built-in water quality monitoring module and water pressure dynamic algorithm unit, can sense changes in water quality in real time and intelligently adjust the output pressure of the water pump. This ensures effective cleaning under different water qualities and effectively prevents pipes and equipment from being blocked or damaged due to poor water quality, thus extending the equipment's lifespan.

[0020] 4. The device of this invention features a blockage warning and automatic backflushing function. When an abnormal water flow is detected, it can automatically trigger a backflushing process to clear blockages. If the blockage cannot be resolved, it will proactively prompt for maintenance and lock the equipment to prevent the fault from escalating. This reduces the frequency of manual intervention and maintenance, ensuring long-term stable operation in unattended scenarios. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial structural diagram of the drainage pipe of the present invention; Figure 3 This is a partial structural diagram of the drainage pipe section of the present invention.

[0022] The components include: 1. Equipment casing; 2. Equipment base plate; 3. Equipment support legs; 4. Main board and display screen; 5. QR code payment area; 6. Card payment area; 7. Panel; 8. Start button; 9. Stop button; 10. Water gun connection pipe; 11. High-pressure water gun and gun stock; 12. T-lock; 13. Advertising placement area; 14. Water tank; 15. Drainage pipe; 16. Drainage pipe section; 17. Booster pump; 18. Drainage trough; 19. Water inlet; 20. Advertising area control room and equipment central control room; 21. Main board operation control area. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a dual-payment self-service high-pressure cleaning device based on community wastewater recycling, comprising a device housing 1, a water gun connecting pipe 10 fixedly connected to the outer wall of the device housing 1, a high-pressure water gun and gunstock 11 detachably connected to the water gun connecting pipe 10, the high-pressure water gun and gunstock 11 being detachably connected to the device housing 1, a water tank 14 fixedly connected inside the device housing 1, a booster water pump 17 fixedly connected inside the device housing 1, the input end of the booster water pump 17 being fixedly connected and communicating with the water tank 14, the output end of the booster water pump 17 passing through the device housing 1 and fixedly connected to the water gun connecting pipe 10, and an advertising area control room and a central control room 20 fixedly connected to one side of the outer wall of the device housing 1.

[0025] Specifically, the outer casing 1, serving as the overall protective and supporting structure of the device, is made of waterproof and rust-proof steel plate, with 3-5cm thick insulation cotton on the inside. The outer wall has a pre-installed interface for the water gun connecting pipe 10. One end of the water gun connecting pipe 10 is fixedly connected to the outer wall of the outer casing 1 via a threaded connection, while the other end is detachably connected to a high-pressure water gun and gunstock 11 via a quick connector. The high-pressure water gun and gunstock 11 are detachably connected to a pre-set slot on the outer wall of the outer casing 1 via a snap-fit ​​structure, allowing for secure storage to prevent damage from impacts when not in use. A water tank 1 is fixedly connected to the center of the interior of the outer casing 1. 4. The size of the water tank 14 is customized proportionally to the size of the machine casing of the customized equipment. A water level sensor is installed inside the water tank 14 to monitor the water volume in real time and provide feedback to the control module. A booster pump 17 is fixedly connected inside the machine casing 1 near the output end of the water tank 14. The input end of the booster pump 17 is fixedly connected to the water outlet at the bottom of the water tank 14 via a pipe. The output end passes through preset holes in the machine casing 1 and is fixedly connected to the high-pressure water gun and gunstock 11 via a quick connector on the water gun connecting pipe 10. This allows the water in the water tank 14 to be pressurized and delivered to the high-pressure water gun 11 for high-pressure cleaning. This invention uses wastewater from community water vending machines as a water source, which enters the water tank through the inlet 19. The booster pump 17 and the high-pressure water gun 11 are controlled by a motherboard card swiping and code scanning method, providing users with efficient cleaning capabilities. Furthermore, it achieves the secondary utilization of wastewater. This not only reduces water waste but also lowers operating costs, aligning with the concept of green environmental protection.

[0026] Equipment base plate 2 is fixedly installed on the lower surface of equipment housing 1, and equipment support legs 3 are fixedly connected to the lower surface of equipment base plate 2.

[0027] Specifically, the equipment base plate 2 is fixedly installed on the lower surface of the equipment shell 1 by bolts. The equipment base plate 2 is made of steel plate, and a waterproof sealing gasket is pasted on the upper surface of the base plate to prevent external moisture from seeping into the equipment. At the four corners of the lower surface of the equipment base plate 2, one equipment leg 3 is fixedly connected by internal corner screws. At least four (an even number of four or more) equipment legs 3 form a uniform support structure. The equipment legs 3 can raise the entire equipment to avoid the equipment base plate 2 directly contacting the ground and accumulating water, preventing the base plate from rusting and the internal components from getting damp. Each leg is also equipped with a rubber anti-slip pad at the bottom to increase the friction with the ground.

[0028] At least one set of panels 7 are fixedly connected to the outer wall of the equipment housing 1. The outer wall of the panel 7 is provided with a main board and display screen 4, a QR code payment area 5, a card payment area 6, a start button 8, a stop button 9, a high-pressure water gun, a gun stock, etc.

[0029] Specifically, in this embodiment, two symmetrically arranged panels 7 are fixedly connected to the outer wall of the front of the device housing 1. The panels 7 are made of waterproof and wear-resistant material. A main board and a display screen 4 are arranged in the center of the upper part of the outer wall of the panel 7. The display screen is an LCD touch screen that can display the current status of the device, the cost of a single cleaning, the duration of a single cleaning, the indication of the device status lights, and operation instructions in real time. The main board is integrated on the back of the display screen and is connected to the main control circuit board in the device's central control room 20 via a data cable. It is responsible for processing the touch signals and displaying data on the display screen. A QR code payment area is arranged in sequence below the display screen on the outer wall of the panel 7. 5. Card payment area 6, start button 8, and stop button 9. The QR code payment area 5 has a static QR code. Users of the card payment area 6 need to obtain a dedicated cleaning card and recharge it in advance at a designated location in the community. When swiping the card, the module can read the card balance and deduct the corresponding fee. Both start button 8 and stop button 9 are waterproof and self-resetting buttons. Start button 8 is green; pressing it sends a start signal to the booster pump 17, putting the equipment into operation. Stop button 9 is red; pressing it immediately stops the booster pump 17. For users who have completed payment, pressing start button 8 again will resume operation. It supports both card and QR code payments, adapting to different users' payment habits. The payment system is linked to the main control board of the equipment, enabling flexible control of self-service start, pause, and secondary consumption, improving user experience and equipment efficiency.

[0030] The outer wall of the equipment casing 1 is provided with a T-type lock 12, and an advertising placement area 13 is fixedly connected to the outer wall of the equipment casing 1.

[0031] Specifically, a T-shaped lock 12 is installed on one side of the outer wall of the front panel 7 of the equipment casing 1. This T-shaped lock 12 is an anti-theft mechanical lock, and the key is only held by the equipment maintenance personnel. The lock cylinder is connected to the door lock mechanism inside the equipment casing 1. Turning the key can open the side door of the equipment casing 1, which is convenient for maintenance personnel to inspect, replenish water, or troubleshoot internal components such as the water tank 14 and the booster pump 17. An advertising placement area 13 is fixedly connected to the top of the front panel 7 or the outer wall of the side of the equipment casing 1. The area of ​​this placement area is designed according to the overall size of the equipment casing 1, and the surface of the advertising placement area 13 is waterproofed to prevent rainwater from seeping in and damaging the internal structure. The equipment casing integrates the advertising area control room and the equipment central control room, combining cleaning services with advertising placement and creating an additional working mode.

[0032] The outer wall of the water tank 14 is fixedly connected to a drain pipe 15 and a water inlet 19. One end of a drain pipe section 16 is fixedly connected to the outer wall of the drain pipe 15. The other end of the drain pipe section 16 is connected to a drain trough 18. The drain trough 18 is fixedly connected to the equipment base plate 2.

[0033] Specifically, a water inlet 19 is fixedly connected to the upper part of the outer wall of the water tank 14, and a drain pipe 15 is also fixedly connected thereto. The water inlet 19 is a copper interface with a filter screen, connected to the greywater discharge end of the community water vending machine via a flexible hose. The water source is greywater (wastewater) filtered by the community water vending machine. The filter screen has a mesh size of 0.5mm, which can filter impurities such as sediment and fibers in the greywater, preventing blockage of the booster pump 17. The drain pipe 15 has one end fixedly connected to the overflow interface on the outer wall of the water tank 14 via a flange connection, and the other end fixedly connected to a drain pipe section 16 via a threaded connection. One end; the drain pipe section 16 can be a corrugated pipe or PVC, and its direction can be adjusted according to the equipment installation position. The other end is connected to the drain trough 18 by a clamp. The drain trough 18 is a U-shaped trough, which is fixedly connected to the lower surface of the equipment base plate 2 by bolts in the preset groove position, and the output end of the drain trough 18 faces the direction of the ground drainage slope. When the equipment is not in use, after the water tank 14 is full, the overflowing water will flow into the drain trough 18 through the drain pipe 15 and the drain pipe section 16 in sequence, and then be guided to the ground drainage area by the drain trough 18 to avoid the water from dripping directly to the bottom of the equipment and causing water accumulation.

[0034] It also includes a water quality monitoring module, which is located near the outlet of the water tank 14 and includes a turbidity sensor and a particulate matter concentration sensor. It is used to monitor the turbidity and particulate matter concentration data of the water in real time and transmit the data to the motherboard 4 in real time.

[0035] Specifically, the water quality monitoring module is located near the outlet of water tank 14 and includes a turbidity sensor and a particulate matter concentration sensor. The turbidity sensor uses the principle of optical scattering to detect the turbidity of the water in real time and outputs the turbidity value; the particulate matter concentration sensor is based on laser scattering technology to monitor the quantity and size distribution of suspended particles in the water. The water quality monitoring module collects sensor data through a built-in microprocessor and transmits the real-time data to the mainboard 4 via a serial communication interface. This design enables the device to continuously monitor the water quality, ensuring the cleanliness of the cleaning water and preventing blockage or damage to the high-pressure water gun 11 or booster pump 17 due to poor water quality, while improving cleaning effect and user satisfaction. The water quality monitoring module has a self-calibration function, which is calibrated periodically with a standard solution to ensure data accuracy. It provides real-time warnings of abnormal water quality, extends the service life of the equipment, reduces maintenance frequency, and improves the safety and reliability of the cleaning process. The device casing 1 has a mainboard operation control area 21, which is the operating area for installing the mainboard and operation buttons.

[0036] The motherboard 4 has a built-in water pressure dynamic algorithm unit. The water pressure dynamic algorithm unit automatically adjusts the output pressure of the booster pump 17 according to the real-time data transmitted by the water quality monitoring module to form a closed-loop control. The water pressure dynamic algorithm unit presets at least three water quality thresholds, which correspond to different water pressure output curves, including high-pressure continuous water supply, medium-pressure pulse water supply and low-pressure intermittent water supply modes.

[0037] Specifically, the water pressure dynamic algorithm unit automatically adjusts the output pressure of the booster pump 17 based on real-time data transmitted from the water quality monitoring module, forming a closed-loop control. The water pressure dynamic algorithm unit is based on a PID control algorithm and presets at least three water quality thresholds: the first threshold, i.e., turbidity ≤ 10 NTU and particulate matter concentration ≤ 100 particles / mL, corresponds to the high-pressure continuous water supply mode, where the booster pump continuously outputs at the rated maximum pressure, usually 10-15 MPa; the second threshold, i.e., turbidity 10-50 NTU or particulate matter concentration 100-500 particles / mL, corresponds to the medium-pressure pulse water supply mode, where the booster pump outputs in an alternating high-pressure (8-10 MPa) and low-pressure (5-8 MPa) pulse manner, with a pulse period of 2-5 seconds; the third threshold, i.e., turbidity > 50 NTU or particulate matter concentration > 500 particles / mL, corresponds to the low-pressure intermittent water supply mode, where the booster pump intermittently supplies water at a lower pressure (3-5 MPa), with a working cycle of 5 seconds on and 2 seconds off. This algorithm unit dynamically adjusts the drive signal of the booster pump by comparing real-time data with thresholds, achieving intelligent pressure regulation. It adapts to varying greywater quality, preventing equipment blockage or efficiency loss due to poor water quality, significantly reducing energy consumption and equipment wear, improving cleaning adaptability and reliability, and extending the lifespan of pumps and pipelines.

[0038] The water pressure dynamic algorithm unit collects water quality data in real time at a preset cycle and compares it with the water quality threshold. When the water quality data exceeds the current threshold, the motherboard 4 automatically sends a pressure adjustment command to the booster pump 17 and simultaneously displays the water quality status and water pressure adjustment information to the user through the display screen 4.

[0039] Specifically, the dynamic water pressure algorithm unit collects water quality data in real time at a preset cycle, typically once per second, and compares it with water quality thresholds. When the water quality data exceeds the current threshold, the mainboard 4 sends a pressure adjustment command to the booster pump 17 via digital or analog voltage signals to immediately adjust the output pressure. Simultaneously, the mainboard 4 controls the display screen 4 to show the current water quality status and corresponding water pressure adjustment information. The display screen also provides dynamic icons and text prompts to help users intuitively understand the device status. The mainboard 4 immediately feeds back the user's usage status to the administrator's backend storage unit via the cloud server, recording historical usage and consumption information for later user management and service. This enhances the user's real-time understanding of the device's operating status, improves transparency and trust, helps users make reasonable operational decisions, avoids forced use under unsuitable water conditions, and thus improves safety and user experience.

[0040] It also includes a blockage warning module. When the main board 4 detects that the water flow rate drops by more than a preset ratio, it determines that there is a partial blockage and automatically triggers the reverse flushing process. The reverse flushing process controls the booster pump 17 to run in reverse briefly, using the reverse water flow to impact the impurities in the water gun connecting pipe 10 and the high-pressure water gun and gun butt 11.

[0041] Specifically, the blockage warning module monitors the water flow velocity in the water gun connection pipe 10 in real time using a Hall effect flow sensor. When the main board 4 detects that the water flow velocity drops by more than 30% within 5 consecutive seconds, it determines that there is a partial blockage and automatically triggers the backwashing process. The backwashing process controls the booster pump 17 to drive the motor to briefly reverse its direction through an H-bridge circuit, lasting 3-5 seconds, generating a reverse water flow that impacts impurities in the water gun connection pipe 10, the high-pressure water gun, and the gunstock 11. The reverse water flow flushes the impurities back to the water tank 14 or the drain pipe 15, where the drain pipe 15 is designed with a filter screen to prevent impurities from flowing back. This module also includes a pressure sensor to assist in verifying the blockage status. It automatically prevents and alleviates pipe blockage, reduces the frequency of manual intervention, maintains long-term stable operation of the equipment, extends the life of key components such as the water pump and water gun, and improves the reliability of the equipment in unattended environments.

[0042] After the reverse flushing process is executed, if the main board 4 detects that the water flow speed has not returned to normal, it will display the information that the equipment needs maintenance on the display screen 4. At the same time, the main board will send a fault code to the background administrator and suspend the operation of the booster pump 17 until it is manually reset.

[0043] Specifically, after the backwashing process is executed, the mainboard 4 continues to monitor the water flow rate via the flow sensor. If the water flow rate does not recover to more than 80% of the normal value within 10 seconds, it is determined that the blockage has not been cleared. At this time, the mainboard displays a maintenance prompt on the display screen 4, sends a fault code to the backend administrator, and automatically cuts off the power to the booster pump 17, suspending its operation. The equipment enters a locked state until the administrator manually resets it via the physical reset button (located on panel 7) or the maintenance menu on the mainboard 4. The mainboard also sends a maintenance alarm to the management platform via the wireless communication module. This avoids equipment damage caused by forced operation under severe blockage conditions, ensures operational safety, promptly notifies maintenance personnel for handling, improves equipment management efficiency and availability, and reduces downtime.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's novel concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the novel principle of the present invention should also be considered within the scope of protection of the invention.

Claims

1. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling, comprising a device housing (1), characterized in that, A water gun connecting pipe (10) is fixedly connected to the outer wall of the equipment housing (1). A high-pressure water gun and gunstock (11) are detachably connected to the water gun connecting pipe (10). The high-pressure water gun and gunstock (11) are detachably connected to the equipment housing (1). A water tank (14) is fixedly connected inside the equipment housing (1). A booster water pump (17) is fixedly connected inside the equipment housing (1). The input end of the booster water pump (17) is fixedly connected to and communicates with the water tank (14). The output end of the booster water pump (17) passes through the equipment housing (1) and is fixedly connected to the water gun connecting pipe (10). An advertising area control room and an equipment central control room (20) are fixedly connected to one side of the outer wall of the equipment housing (1).

2. The dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 1, characterized in that, The equipment base plate (2) is fixedly installed on the lower surface of the equipment housing (1), and the equipment support leg (3) is fixedly connected to the lower surface of the equipment base plate (2).

3. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 2, characterized in that, At least one set of panels (7) are fixedly connected to the outer wall of the device housing (1). The outer wall of the panel (7) is provided with a motherboard and a display screen (4), a QR code payment area (5), a card payment area (6), a start button (8), and a stop button (9).

4. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 3, characterized in that, The outer wall of the device housing (1) is provided with a T-lock (12), and an advertising placement area (13) is fixedly connected to the outer wall of the device housing (1).

5. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 4, characterized in that, The outer wall of the water tank (14) is fixedly connected to a drain pipe (15) and a water inlet (19). One end of a drain pipe section (16) is fixedly connected to the outer wall of the drain pipe (15). The other end of the drain pipe section (16) is connected to a drain trough (18). The drain trough (18) is fixedly connected to the equipment base plate (2).

6. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 5, characterized in that, It also includes a water quality monitoring module, which is located near the outlet of the water tank (14) and includes a turbidity sensor and a particulate matter concentration sensor, for real-time monitoring of the turbidity and particulate matter concentration data of the water and transmitting the data to the motherboard and display screen (4) in real time.

7. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 6, characterized in that, The motherboard and display screen (4) display the consumption amount and water volume to the outside, while the back-end is equipped with a water pressure dynamic algorithm unit. The water pressure dynamic algorithm unit automatically adjusts the output pressure of the booster pump (17) according to the real-time data transmitted by the water quality monitoring module to form a closed-loop control. The water pressure dynamic algorithm unit presets at least three water quality thresholds, which correspond to different water pressure output curves, including high-pressure continuous water supply, medium-pressure pulse water supply and low-pressure intermittent water supply modes.

8. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 7, characterized in that, The water pressure dynamic algorithm unit collects water quality data in real time at a preset period and compares it with the water quality threshold. When the water quality data exceeds the current threshold, the motherboard and display screen (4) automatically send a pressure adjustment command to the booster pump (17) and simultaneously prompt the user with water quality status and water pressure adjustment information through the motherboard and display screen (4).

9. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 8, characterized in that, It also includes a blockage warning module. When the motherboard and display screen (4) detect that the water flow speed drops by more than a preset ratio, it determines that there is a partial blockage and automatically triggers the reverse flushing process. The reverse flushing process controls the booster pump (17) to run in reverse for a short time, using the reverse water flow to impact the impurities in the water gun connecting pipe (10) and the high-pressure water gun and gunstock (11).

10. A dual-payment self-service high-pressure cleaning device based on community wastewater recycling as described in claim 9, characterized in that, After the reverse flushing process is executed, if the main board and display screen (4) detect that the water flow speed has not returned to normal, the main board and display screen (4) will display information indicating that the equipment needs maintenance. At the same time, the main board will send a fault code to the background administrator and suspend the operation of the booster pump (17) until it is manually reset.

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