Sanitation equipment and waterway system thereof

Abstract

The utility model discloses a waterway system of environmental sanitation equipment and the environmental sanitation equipment with the waterway system, the waterway system comprises a water tank, a water pump assembly, an automatic unloading valve, a pressure detection piece and a control assembly, the water pump assembly is connected with the water tank; the automatic unloading valve is connected with the water pump assembly; the pressure detection piece is configured to detect the working pressure of the waterway system; the control assembly is in signal transmission with the pressure detection piece and the water pump assembly and is configured to adjust the rotating speed of the water pump assembly according to the water pressure obtained by the pressure detection piece. According to the waterway system, the automatic unloading valve can keep stable operation and safety of the waterway system, the pressure detection piece can detect the water pressure of the system in real time and generate an electric signal, the control assembly controls the water pump assembly to be kept at a reasonable rotating speed according to the pressure of the system, and work energy consumption of the waterway system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road cleaning equipment, in particular to a waterway system of sanitation equipment and sanitation equipment. Background Art

[0002] Road washing vehicles can be used to remove dirt from roads, reduce dust and particulate matter flying on roads, and improve air quality. Permanent magnet synchronous motors are usually used to drive high-pressure water pumps in related technologies. The speed of the water pump motor is generally set according to the rated speed of the water pump to provide a high-pressure water source for vehicle washing operations. However, different water flow rates and water pressures are required for different road surfaces, resulting in the output flow of the water pump exceeding actual demand, causing a certain amount of energy waste in the motor. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a water system for sanitation equipment, the water outlet of the water system is stable, and the working energy consumption of the water system can be reduced.

[0004] Another object of the present invention is to provide a sanitation equipment, comprising the aforementioned water system.

[0005] According to the water circuit system of the embodiment of the utility model, it includes: a water tank, a water pump assembly, an automatic unloading valve, a pressure detection component and a control component, the water pump assembly is connected to the water tank; the automatic unloading valve is connected to the water pump assembly; the pressure detection component is configured to detect the working pressure of the water circuit system; the control component transmits signals with the pressure detection component and the water pump assembly, and the control component is configured to adjust the rotation speed of the water pump assembly according to the water pressure obtained by the pressure detection component.

[0006] According to the water system of the embodiment of the utility model, the automatic unloading valve can adjust the water pressure of the water system to keep the water output of the water system stable and maintain the normal operation and safety of the water system. The pressure detection component can detect the system water pressure in real time and generate an electrical signal. The electrical signal is transmitted to the control component. The control component can process and calculate the electrical signal to control the rotation speed of the water pump component. After the user of the sanitation equipment adjusts the water pressure, the control component controls the water pump component to maintain a reasonable rotation speed according to the system pressure, thereby reducing the working energy consumption of the water system.

[0007] In addition, the water system of the sanitation equipment according to the above embodiment of the utility model may also have the following additional technical features:

[0008] In some embodiments, the control component includes a motor controller and a motion controller, the motion controller transmits signals to the pressure detection component, and determines the required speed of the water pump component based on the water pressure detected by the pressure detection component, the motor controller transmits signals to the motion controller, and is configured to control the water pump component based on the required speed.

[0009] In some embodiments, the detected water pressure p and the required speed n satisfy: Among them, p0 is 2MPa, Q0 is the flow rate of the nozzle when the pressure p is 2MPa, and k is the proportional coefficient.

[0010] In some embodiments, the pressure detecting component is connected between the automatic unloading valve and the water pump assembly, and is configured to detect the water pressure between the water pump assembly and the automatic unloading valve; or, the pressure detecting component is integrated in the automatic unloading valve; or, the pressure detecting component is connected downstream of the automatic unloading valve, and is configured to detect the water pressure between the outlet of the automatic unloading valve and the next pipeline node.

[0011] In some embodiments, the water pump assembly includes a pump body and a motor, the motor is drivingly connected to the pump body, and the motor transmits signals to the control assembly.

[0012] In some embodiments, a universal joint transmission shaft is provided between the pump body and the motor, and the universal joint transmission shaft is respectively connected to the motor and the pump body in a driving manner.

[0013] In some embodiments, the water tank has a water outlet and a water return port, the water pump assembly is connected to the water outlet, and the overflow end of the automatic unloading valve is connected to the water return port.

[0014] In some embodiments, the water system further includes a water hose reel and a water valve, wherein the water valve is connected to the automatic unloading valve, one end of the water hose reel is connected to the water valve, and the other end of the water hose reel is connected to a quick-release connector.

[0015] In some embodiments, the water valve has a first interface, a second interface and a third interface, the first interface is connected to the automatic unloading valve, the second interface is connected to the water hose reel, and the third interface is configured to connect to other water circuits.

[0016] The sanitation equipment according to the embodiment of the utility model includes the aforementioned water system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a water system of an embodiment of the utility model.

[0018] Figure 2 yes Figure 1 A partial schematic diagram of .

[0019] Reference numerals:

[0020] Water system 100, water tank 10, water outlet 11, water return port 12, water pump assembly 20, pump body 21, motor 22, universal joint drive shaft 23, automatic unloading valve 30, overflow end 31, pressure detection component 41, pressure gauge 42, control assembly 50, motor controller 51, motion controller 52, water hose reel 61, water valve 62, first interface 621, second interface 622, third interface 623, quick release connector 63, spray gun 64, nozzle 65, switch valve 66, water filter 67, first water pipe 71, second water pipe 72, third water pipe 73, fourth water pipe 74, fifth water pipe 75, other water circuits 76. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The water system 100 according to the embodiment of the utility model can be applied to sanitation equipment, which can be a washing and sweeping vehicle, a spraying vehicle, etc. The sanitation equipment can be equipped with a hand-held spray gun 64, a water spray rack, a brush plate, a nozzle, an angle spray and other water spraying devices, through which water is sprayed onto the road surface or the ground is cleaned.

[0023] Combination Figure 1 and Figure 2 The waterway system 100 may include a water tank 10 and a water pump assembly 20. The water tank 10 may be used to pre-store a certain amount of water in the sanitation equipment. The water pump assembly 20 is connected to the water tank 10 and can drive the flow of water. The water tank 10 may be provided with a water outlet 11. The water pump assembly 20 may have a water inlet end and a water outlet end. The water inlet end of the water pump assembly 20 is connected to the water outlet 11 on the water tank 10.

[0024] The waterway system 100 may also include an automatic unloading valve 30, which is connected to the water pump assembly 20. The automatic unloading valve 30 can adjust the working pressure of the waterway system 100. For example, for different roads to be cleaned, the required water outlet pressure and water outlet flow are different. The working pressure of the waterway system 100 can be set by adjusting the automatic unloading valve 30 according to actual use requirements. By setting the automatic unloading valve 30, it is convenient for users to adjust the water outlet pressure and flow according to actual use requirements. For example, when dealing with a dirty road surface, the automatic unloading valve 30 can be adjusted to increase the water pressure and water flow, improve the working efficiency of the sanitation equipment, and when dealing with a relatively clean road surface, the automatic unloading valve 30 can be adjusted to reduce the water pressure and water flow, and save water resources. When the waterway system 100 exceeds the preset pressure, the automatic unloading valve 30 automatically opens to drain the excess water. The automatic unloading valve 30 can control the working pressure of the waterway system 100 and improve the stability and safety of the waterway system 100.

[0025] The water system 100 may also include a pressure detection component 41, which is configured to detect the working pressure of the water system 100. Specifically, when the working pressure in the water system 100 exceeds the preset pressure, the automatic unloading valve 30 can be automatically opened to maintain the water system 100 within the preset pressure range and maintain a stable water outlet state. The pressure detection component 41 can detect the pressure of the water system 100 in real time and can generate an electrical signal for controlling the operation of the water system 100.

[0026] The water circuit system 100 may further include a control component 50, which transmits signals with the pressure detection component 41 and the water pump component 20. The control component 50 is configured to adjust the rotation speed of the water pump component 20 according to the water pressure obtained by the pressure detection component 41. Specifically, after the pressure detection component 41 detects the pressure of the water circuit system 100 in real time, it generates an electrical signal and transmits the electrical signal to the control component 50. The control component 50 controls the rotation speed of the water pump component 20 according to the acquired electrical signal. The pressure sensor can detect the working pressure of the water circuit system 100 in real time, generate an electrical signal, and transmit the signal to the control component 50. The control component 50 receives the electrical signal and processes and calculates it to control the operation of the water pump component 20, so that the water pump component 20 can increase or decrease the rotation speed in real time according to the actual detection pressure value, thereby reducing the energy consumption of the water circuit system 100.

[0027] According to the water system 100 of the sanitation equipment of the embodiment of the utility model, the automatic unloading valve 30 can adjust the water pressure of the water system 100 to keep the water output of the water system 100 stable and maintain the normal operation and safety of the water system 100. The pressure detection component 41 can detect the system water pressure in real time and generate an electrical signal, which is transmitted to the control component 50. The control component 50 can process and calculate the electrical signal to control the rotation speed of the water pump component 20. After the user of the sanitation equipment adjusts the water pressure through the automatic unloading valve 30, the water pump component 20 can adjust the rotation speed in real time. In other words, the control component 50 controls the water pump component 20 to maintain a reasonable rotation speed according to the system pressure, thereby reducing the energy consumption of the water pump component 20, and can reduce the overflow of the automatic unloading valve 30, thereby reducing the working energy consumption of the water system 100.

[0028] The pressure detection member 41 is configured to detect the working pressure of the water system 100. The pressure detection member 41 can be connected to a position near the automatic unloading valve 30, and can be connected to the upstream of the automatic unloading valve 30 or the downstream of the automatic unloading valve 30, so that after the automatic unloading valve 30 is automatically opened, the pressure detection member 41 can accurately detect the water pressure of the water system 100, and then adjust the rotation speed of the water pump assembly 20 according to the water pressure of the water system 100. Relative to the position where the handheld spray gun 64 or the nozzle 65 is installed, due to the flow resistance in the pipeline, the actual pressure of the nozzle 65 or the spray gun 64 will be lower than the pressure value near the automatic unloading valve 30. Therefore, by connecting the pressure detection member 41 near the automatic unloading valve 30, the error of water pressure detection can be reduced, and a more accurate water pressure value can be obtained, so as to accurately control the water pump assembly 20 to adjust the rotation speed in real time according to the working pressure of the water system 100, and further reduce the energy consumption of the unloading water system 100.

[0029] The pressure detection component 41 can be a pressure sensor or a flow sensor. When the pressure detection component 41 is a flow sensor, the flow sensor can calculate the pressure of the water system according to the flow rate. The control component 50 transmits signals with the flow sensor and the water pump component 20. The control component 50 is configured to adjust the rotation speed of the water pump component 20 according to the calculated pressure value.

[0030] The automatic unloading valve may be provided with a pressure regulating screw, and the automatic unloading valve may be adjusted by turning the pressure regulating screw to set the working pressure of the water system.

[0031] Among them, the water tank 10 may be provided with a water outlet 11, and the water pump assembly 20 may have a water inlet end and a water outlet end. The water inlet end of the water pump assembly 20 is connected to the water outlet 11 of the water tank 10. When the water pump assembly 20 works, it drives the water in the water tank 10 to flow from the water outlet 11 to the water outlet end of the water pump assembly 20.

[0032] In addition, the control component 50 transmits signals with the pressure detection component 41 and the water pump component 20. The control component 50 can receive and process the electrical signal of the pressure detection component 41. By processing and calculating the electrical signal, parameters can be preset in the control component 50, and the required rotational speed of the water pump component 20 can be calculated according to the electrical signal, and the water pump component 20 can be controlled to work at the required rotational speed.

[0033] In some embodiments of the utility model, the water pump assembly 20 may include a pump body 21 and a motor 22, the motor 22 is connected to the pump body 21 by transmission, and the motor 22 transmits signals to the control assembly 50. Specifically, the motor 22 transmits power to the pump body 21, and the pump body 21 works to drive the water in the water tank 10 to flow from the water outlet 11 to the water outlet end of the pump body 21, wherein the control assembly 50 can control the speed of the motor 22, when the control assembly 50 controls the speed of the motor 22 to increase, the work of the pump body 21 is synchronously accelerated, and the pressure and flow of the water flow are increased, and when the control assembly 50 controls the speed of the motor 22 to decrease, the work of the pump body 21 is synchronously reduced, and the pressure and flow of the water flow are reduced. The control assembly 50 transmits signals to the motor 22, so that the control assembly 50 can control the speed of the motor 22 in real time, and then control the work of the pump body 21 to control the pressure and flow of the water system 100. Among them, the pump body 21 can be a high-pressure water pump.

[0034] In some embodiments of the present utility model, the control component 50 includes a motor controller 51 and a motion controller 52. The motion controller 52 transmits signals with the pressure detection component 41, and determines the required rotation speed of the water pump component 20 according to the detected water pressure of the pressure detection component 41. The motor controller 51 transmits signals with the motion controller 52, and is configured to control the water pump component 20 according to the required rotation speed. Specifically, the motion controller 52 can receive the electrical signal of the pressure detection component 41, calculate the required rotation speed of the water pump component 20 according to the electrical signal, and generate a control instruction to achieve precise motion control. The motor controller 51 can control the movement of the water pump component 20 according to the control signal, and realize the control of the rotation speed of the water pump component 20. By setting the motor controller 51 and the motion controller 52, the two cooperate with each other to achieve precise control and adjustment of the rotation speed of the water pump component 20, and reduce the working energy consumption of the water system 100.

[0035] Furthermore, the motion controller 52 and the motor controller 51 can realize data transmission through the CAN bus, and the motion controller 52 can send instructions to the motor controller 51 to realize the control of the water pump assembly 20. At the same time, the motor controller 51 can feed back the state information of the water pump assembly 20 to the motion controller 52 through the CAN bus, so that the motion controller 52 can accurately and efficiently adjust the control strategy and improve the reliability of the control assembly 50. The motor controller 51 can realize the control operations such as acceleration and deceleration of the speed of the water pump assembly 20 by changing the voltage magnitude and phase difference of the three phases U / V / W. The control structure is simple and the operation is stable, which improves the working efficiency of the control assembly 50.

[0036] It can be understood that the load of the water pump assembly 20 on the sanitation equipment is divided into two parts: useful work and useless work. Taking the operation of the handheld spray gun 64 as an example, the actual water flow and water pressure sprayed out constitute the useful work in the load, and the power loss of the motor 22, the transmission shaft and other components, the flow resistance loss of the water valve 62, the handheld spray gun 64, the pipeline and other components, and the overflow loss of the automatic unloading valve 30 constitute the useless work in the load. Increasing useful work and reducing useless work can reduce the energy consumption of the water system 100, especially for pure electric sanitation equipment. By reducing energy consumption, the cruising range of the sanitation equipment can also be increased. The power loss and flow resistance loss are mainly determined by the structure of the water system 100 itself. The overflow loss of the automatic unloading valve 30 can theoretically be reduced to zero by controlling the speed of the motor 22.

[0037] In some embodiments of the present invention, the detected water pressure p and the required speed n satisfy: Wherein, p0 is 2MPa, Q0 is the flow rate of the nozzle when the pressure p is 2MPa, and k is the proportionality coefficient. For example, the pump body 21 can be a plunger pump, and k can be between 0.1-100, for example, k can be 1, 10, 20, 50, 80, etc., depending on factors such as the size, speed and impeller design of the water pump. The parameters of the water pump can be selected and designed according to the actual working needs of the sanitation equipment.

[0038] Specifically, the detected water pressure p is the water pressure detected by the pressure detection component 41. When the water system is working, the water pressure detected by the pressure detection component 41 is the real-time water pressure of the water system 100. The control component 50 can calculate the required speed n of the water pump component 20 according to the detected water pressure, and control the water pump component 20 to work at the required speed, so as to reduce the overflow of the automatic unloading valve 30 and the energy consumption of the water pump component 20, thereby reducing the energy consumption of the system. The required speed of the water pump component 20 is set in the control component 50 as The water pump assembly 20 is controlled to work according to the required rotation speed n, so that the automatic unloading valve 30 can be in a non-overflow state, thereby reducing the useless work of the water system 100 and reducing the energy consumption of the water system 100.

[0039] Among them, the useful work is determined by the total flow rate Q and pressure p of the nozzle. The numerical relationship between flow rate Q and pressure p is determined by the nozzle model. For working devices such as hand-held spray guns and water spray racks, the nozzle model is fixed. p satisfy Useful power P = Q × p / 60, and the useful power at any nozzle pressure p is: The water pump assembly may include a pump body and a motor. For example, the pump body may be a plunger-type high-pressure water pump with an output flow rate Q 泵 and pump speed n 泵 Can be proportional to Q 泵 =k*n 泵 Therefore, when the overflow state of the automatic unloading valve is zero, Therefore, the required speed of the pump is When the overflow of the automatic unloading valve is zero, the energy consumption of the water system can be reduced to the greatest extent. The sanitation equipment of the utility model can be a pure electric equipment or a fuel equipment. When the sanitation equipment is a pure electric equipment, the cruising range of the sanitation equipment can be increased. When the sanitation equipment is a fuel equipment, the fuel consumption of the sanitation equipment can be reduced.

[0040] In some embodiments of the utility model, the pressure detection component 41 is connected between the automatic unloading valve 30 and the water pump assembly 20, and is configured to detect the water pressure between the water pump assembly 20 and the automatic unloading valve 30. It can be understood that there is flow resistance in the pipeline of the water system 100. By setting the pressure detection component 41 between the automatic unloading valve 30 and the water pump assembly 20, the pressure detection component 41 can accurately detect the working pressure of the water system 100, reduce the influence of the flow resistance in the pipeline on the detected water pressure, and then accurately determine the required speed of the water pump assembly 20, avoid energy loss caused by overflow of the automatic unloading valve 30, and further reduce the energy consumption of the water system 100.

[0041] In some embodiments of the present invention, the pressure detection component 41 is integrated into the automatic unloading valve 30, so that the pressure detection component 41 can accurately detect the working pressure of the water system near the automatic unloading valve 30, avoid the pipeline flow resistance affecting the detection accuracy of the working pressure, and then accurately determine the required speed of the water pump assembly 20. By accurately determining the working pressure near the automatic unloading valve 30 in the water system 100, energy loss caused by overflow of the automatic unloading valve 30 can be avoided, further reducing the energy consumption of the water system 100.

[0042] In some embodiments of the utility model, the pressure detection component 41 is connected to the downstream of the automatic unloading valve 30 and is configured to detect the water pressure between the outlet of the automatic unloading valve 30 and the next pipeline node. Specifically, the outlet of the automatic unloading valve 30 can be connected to a pipeline, one end of the pipeline is connected to the outlet of the automatic unloading valve 30, and the other end is connected to other water circuit elements. The other water circuit elements can be a water hose reel 61, a handheld spray gun 64, a nozzle 65, etc. The next pipeline node is the node where this pipeline is connected to other water circuit elements. The pressure detection component 41 is located downstream of the automatic unloading valve 30. The working water pressure here can be the water pressure after the unloading valve is unloaded, which can improve the accuracy of the pressure test, and then can accurately determine the required speed of the water pump assembly 20. The water pump is maintained at a reasonable speed, which can reduce the overflow of the automatic unloading valve 30 and reduce the energy consumption of the water system 100.

[0043] Preferably, the pressure detection component 41 is connected downstream of the automatic unloading valve 30 and close to the position of the automatic unloading valve 30, so as to accurately detect the working pressure of the water system, avoid the influence of pipeline flow resistance and the like on the accuracy of pressure value detection, and thus accurately determine the required rotation speed of the water pump assembly 20.

[0044] In some embodiments of the utility model, a universal joint transmission shaft 23 is provided between the pump body 21 and the motor 22, and the universal joint transmission shaft 23 is respectively connected to the motor 22 and the pump body 21 for transmission. That is to say, the speed ratio between the pump body 21 and the motor 22 is 1, which is convenient for controlling the operation of the motor 22 and the water pump through the control component 50.

[0045] In some embodiments of the present invention, the water system 100 further includes a pressure gauge 42, and the pressure gauge 42 and the pressure detection member 41 are constructed as an integrated structure or a split structure. The pressure gauge 42 can display the pressure value of the water system 100 to monitor the operating state of the water system 100. The pressure gauge 42 and the pressure detection member 41 can be an integrated structure to reduce the connection of components of the water system 100 and improve the reliability and assembly efficiency of the water system 100. Of course, the pressure gauge 42 and the pressure detection member 41 can also be a split structure to facilitate the maintenance of the water system 100.

[0046] In some embodiments of the present invention, the water tank 10 has a water outlet 11 and a water return port 12, the water pump assembly 20 is connected to the water outlet 11, and the overflow end 31 of the automatic unloading valve 30 is connected to the water return port 12. When the water system 100 exceeds the preset pressure, the automatic unloading valve 30 automatically opens, and the water flow can be recovered from the overflow end 31 of the automatic unloading valve 30 through the water return port 12 of the water tank 10. On the one hand, it can control the working pressure of the water system 100, improve the stability and safety of the water system 100, and avoid waste of water flow.

[0047] In some embodiments of the present utility model, a switch valve 66 is connected between the water pump assembly 20 and the water tank 10, wherein the switch valve 66 is an automatic valve or a manual valve;

[0048] In some embodiments of the utility model, a water filter 67 is connected between the water pump assembly 20 and the water tank 10. The water filter 67 can filter the water flow to prevent impurities from accumulating in the water tank 10, or the water source used contains impurities that clog the components of the water system 100. The water filter 67 is connected between the water pump assembly 20 and the water tank 10, and can filter the water entering the water pump assembly 20 to prevent impurities from entering the water pump assembly 20 and causing damage to the water pump assembly 20, thereby increasing the service life of the water pump assembly 20. It can also prevent impurities from entering the water spray device, clogging the water spray device and affecting the working efficiency of the sanitation equipment.

[0049] In some embodiments of the utility model, the water system 100 further includes a water hose reel 61 and a water valve 62, the water valve 62 is connected to the automatic unloading valve 30, one end of the water hose reel 61 is connected to the water valve 62, and the other end of the water hose reel 61 is connected to a quick-release joint 63. Among them, the other end of the water hose reel 61 can be replaced with different water spraying devices through the quick-release joint 63. For example, the water spraying device can be a hand-held spray gun 64, a water spraying rack, a disc cleaning, an angle spray and other high-pressure waterway operation devices, and different water spraying devices can be replaced in different operation scenes. By setting the quick-release joint 63, it is convenient for the water system 100 to replace different water spraying devices according to the operation scene. The pipeline can be wound on the water hose reel 61 and can be unfolded from the water hose reel 61. When a water pipe is needed, the water pipe of the required length can be quickly taken out, saving space and improving operation efficiency. Among them, the water valve 62 can be a pneumatic water valve 62, which can better withstand the high pressure of the water system 100 and improve the working stability of the water system 100.

[0050] In some embodiments of the utility model, the water valve 62 has a first interface 621, a second interface 622 and a third interface 623, the first interface 621 is connected to the automatic unloading valve 30, the second interface 622 is connected to the water hose reel 61, and the third interface 623 is configured to connect other water circuits 76, wherein other water circuits 76 can be connected to fixed-point cleaning, water spray racks, etc., and the water valve 62 can be used to control the water hose reel 61 or other water circuits 76 to work simultaneously, or the water hose reel 61 and other water circuits to work simultaneously, thereby enriching the functions of the water circuit system 100 and improving the working flexibility of the water circuit system 100.

[0051] Combine the following Figure 1 and Figure 2, describing some specific embodiments of the water system 100 of the sanitation equipment of the utility model, the water system 100 may include a water tank 10, the water tank 10 may have a water outlet 11 and a water return port 12, the water outlet 11 of the water tank 10 may be connected to the water inlet end of the high-pressure water pump, wherein the water outlet 11 of the water tank 10 and the water inlet end of the high-pressure water pump may be connected with a water filter 67 and a switch valve 66, the water outlet end of the high-pressure water pump may be connected with an automatic unloading valve 30, a pressure gauge 42 may be connected between the automatic unloading valve 30 and the high-pressure water pump, wherein the high-pressure water pump may be connected to the motor 22 through a universal joint transmission shaft 23, the water system 100 may also include a pressure detection component 41, which may be connected between the automatic unloading valve 30 and the high-pressure water pump, or integrated into the automatic unloading valve 30, or connected downstream of the automatic unloading valve 30, and configured to detect the working pressure of the water system 100. The water system 100 may also include a control component 50, which includes a motor controller 51 and a motion controller 52. The control component 50 transmits signals with the pressure detection component 41 and the motor 22. The control component 50 adjusts the speed of the motor 22 according to the water pressure obtained by the pressure detection component 41, and detects that the water pressure p and the required speed n meet: The automatic unloading valve 30 is placed in a non-overflow state. The overflow end 31 of the automatic unloading valve 30 can be connected to the return port 12 of the water tank 10. One end of the automatic unloading valve 30 is connected to the high-pressure water pump, and the other end can be connected to a pneumatic water valve 62. The pneumatic water valve 62 can be a three-way valve. The pneumatic water valve 62 has a first interface 621, a second interface 622 and a third interface 623. The first interface 621 is connected to the automatic unloading valve 30, the second interface 622 is connected to the water hose reel 61, and the third interface 623 can be configured to connect to other waterways 76. The water hose reel 61 can be connected to a quick-release connector 63, and the quick-release connector 63 can be connected to a nozzle 65, a handheld spray gun 64, a disc cleaning, an angle spray and other operating devices.

[0052] The water system 100 may include a plurality of water pipes, and the cooperation of the plurality of water pipes improves the working stability of the water system 100. The water system 100 includes a first water pipe 71, the water inlet end of the first water pipe 71 is connected to the switch valve 66, the switch valve 66 is connected to the water outlet 11 of the water tank 10, and the water outlet end of the first water pipe 71 is connected to the water filter 67; the water system 100 may also include a second water pipe 72, the water inlet end of the second water pipe 72 is connected to the water filter 67, and the water outlet end is connected to the water pump assembly 20; the water system 100 may also include a third water pipe 73, the water inlet end of the third water pipe 73 is connected to the water filter 67, and the water outlet end is connected to the water pump assembly 20; The water system 100 is connected to the automatic unloading valve 30, and the water outlet end of the third water pipe 73 is connected to the water valve 62; the water system 100 may also include a fourth water pipe 74, the water inlet end of the fourth water pipe 74 is connected to the water valve 62, and the water outlet end of the fourth water pipe 74 is connected to the water pipe reel 61; the water system 100 may also include a fifth water pipe 75, the water inlet end of the fifth water pipe 75 is connected to the overflow end 31 of the automatic unloading valve 30, and the water outlet end of the fifth water pipe 75 is connected to the return water port 12 of the water tank 10. The water system 100 may also include other water channels 76, the water inlet end of other water channels 76 may be connected to the water valve 62, and the water outlet end may be connected to a fixed-point spraying, a water spraying rack, etc. By setting up multiple water pipes to cooperate, the working stability and working flexibility of the water system 100 can be improved, and the functions of the water system 100 can be enriched.

[0053] The sanitation equipment according to the embodiment of the utility model includes the aforementioned water system 100. The water system 100 can be installed on a vehicle, and the vehicle can be a pure electric or fuel vehicle. In other words, the power of the water pump assembly 20 of the water system 100 can be provided by a battery or a fuel engine. By setting the aforementioned water system 100, the rotation speed of the water pump assembly 20 can be controlled in real time according to the pressure of the water system 100, so that the water pump assembly 20 maintains a reasonable rotation speed, reduces the overflow of the automatic unloading valve 30, reduces energy consumption, and thus can improve the cruising range of the sanitation equipment or reduce fuel consumption.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A water system (100) for sanitation equipment, characterized in that: include: Water tank (10); A water pump assembly (20), wherein the water pump assembly (20) is connected to the water tank (10); An automatic unloading valve (30), the automatic unloading valve (30) being connected to the water pump assembly (20); A pressure detection component (41), wherein the pressure detection component (41) is configured to detect the working pressure of the water system (100); A control component (50), wherein the control component (50) transmits signals to the pressure detection component (41) and the water pump component (20), and the control component (50) is configured to adjust the rotation speed of the water pump component (20) according to the water pressure obtained by the pressure detection component (41).

2. The waterway system (100) according to claim 1, characterized in that: The control component (50) comprises a motor controller (51) and a motion controller (52); the motion controller (52) transmits signals with the pressure detection component (41) and determines the required rotation speed of the water pump component (20) according to the water pressure detected by the pressure detection component (41); the motor controller (51) transmits signals with the motion controller (52) and is configured to control the water pump component (20) according to the required rotation speed.

3. The waterway system (100) according to claim 2, characterized in that: The detected water pressure p and the required speed n satisfy: Among them, p0 is 2MPa, Q0 is the flow rate of the nozzle when the pressure p is 2MPa, and k is the proportional coefficient.

4. The waterway system (100) according to any one of claims 1 to 3, characterized in that: The pressure detection element (41) is connected between the automatic unloading valve (30) and the water pump assembly (20), and is configured to detect the water pressure between the water pump assembly (20) and the automatic unloading valve (30); Or, the pressure detection component (41) is integrated into the automatic unloading valve (30); Alternatively, the pressure detection element (41) is connected downstream of the automatic unloading valve (30) and is configured to detect the water pressure between the outlet of the automatic unloading valve (30) and the next pipeline node.

5. The waterway system (100) according to any one of claims 1 to 3, characterized in that: The water pump assembly (20) comprises a pump body (21) and a motor (22); the motor (22) is drivingly connected to the pump body (21); and the motor (22) transmits signals to the control assembly (50).

6. The waterway system (100) according to claim 5, characterized in that: A universal joint transmission shaft (23) is provided between the pump body (21) and the motor (22), and the universal joint transmission shaft (23) is respectively connected in transmission with the motor (22) and the pump body (21).

7. The waterway system (100) according to claim 1, characterized in that: The water tank (10) has a water outlet (11) and a water return port (12); the water pump assembly (20) is in communication with the water outlet (11); and the overflow end (31) of the automatic unloading valve (30) is connected to the water return port (12).

8. The waterway system (100) according to claim 1, characterized in that: The water system (100) further comprises a water hose reel (61) and a water valve (62), wherein the water valve (62) is connected to the automatic unloading valve (30), one end of the water hose reel (61) is connected to the water valve (62), and the other end of the water hose reel (61) is connected to a quick-release connector (63).

9. The waterway system (100) according to claim 8, characterized in that: The water valve (62) has a first interface (621), a second interface (622) and a third interface (623), wherein the first interface (621) is connected to the automatic unloading valve (30), the second interface (622) is connected to the water hose reel (61), and the third interface (623) is configured to connect to other water circuits (76).

10. A sanitation equipment, characterized in that: A waterway system (100) comprising any one of claims 1-9.

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