Pipe assembly, cleaning machine and cleaning system

Abstract

This application relates to the field of cleaning technology, and proposes a pipeline assembly, a cleaning machine, and a cleaning system. The pipeline assembly is used on the cleaning machine, which includes a clean water tank and a nozzle. The pipeline assembly includes: a clean water pipe, with a first end connected to the clean water tank and a second end connected to the nozzle; a drive pump connected to the clean water pipe; and a pressure relief valve connected to the clean water pipe. When the drive pump is operating, if the set parameters of the pipeline assembly are less than a set threshold, water in the clean water pipe is sprayed out through the nozzle; if the set parameters of the pipeline assembly are greater than or equal to the set threshold, at least a portion of the water in the clean water pipe is discharged through the pressure relief valve. When used in the cleaning machine, the above-mentioned pipeline assembly can prevent excessive pressure in the clean water pipe, thereby reducing or eliminating the risk of damage to the clean water pipe.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a pipeline assembly, a cleaning machine, and a cleaning system. Background Technology

[0002] The water hoses of existing cleaning machines are prone to damage during use. Utility Model Content

[0003] In view of this, embodiments of this application provide a pipeline assembly, a cleaning machine, and a cleaning system to solve the problem of easy damage to clean water pipes.

[0004] The first aspect of this application discloses a piping assembly for use in a cleaning machine, the cleaning machine including a clean water tank and a nozzle; the piping assembly includes:

[0005] A clean water pipe, the first end of which is connected to the clean water tank, and the second end of which is connected to the nozzle;

[0006] Drive the pump, which is connected to the clean water pipe;

[0007] A pressure relief valve is connected to the clean water pipe;

[0008] When the drive pump is working, if the set parameter of the pipeline assembly is less than the set threshold, the water in the clean water pipe is sprayed out through the nozzle; if the set parameter of the pipeline assembly is greater than or equal to the set threshold, at least a portion of the water in the clean water pipe is discharged through the pressure relief valve.

[0009] The beneficial effects of the pipeline assembly provided in this application are as follows: The pipeline assembly includes a clean water pipe, a drive pump, and a pressure relief valve. Both the drive pump and the pressure relief valve are connected to the clean water pipe. When the drive pump is working, if the set parameters of the pipeline assembly are less than a set threshold, the water in the clean water pipe is sprayed out through the nozzle; if the set parameters of the pipeline assembly are greater than or equal to the set threshold, at least a portion of the water in the clean water pipe is discharged through the pressure relief valve to avoid excessive pressure in the clean water pipe, thereby reducing or eliminating the risk of damage to the clean water pipe and improving the service life of the clean water pipe.

[0010] In some embodiments, the setting parameters include the water pressure in the clean water pipe, and the setting threshold includes a setting pressure value.

[0011] In some embodiments, the pressure relief valve includes a valve body, a plug and a first elastic element disposed within the valve body, and the valve body has a pressure relief port;

[0012] When the drive pump is working, if the water pressure in the clean water pipe is less than the set pressure value, the plug closes the pressure relief port under the elastic force of the first elastic element, and the water in the clean water pipe is sprayed out through the nozzle; if the water pressure in the clean water pipe is greater than or equal to the set pressure value, the plug overcomes the elastic force of the first elastic element to open the pressure relief port, and at least a portion of the water in the clean water pipe is discharged through the pressure relief valve.

[0013] The advantages of adopting the above technical solution are: the pressure relief valve has a simple structure and low manufacturing cost; moreover, it can achieve pressure relief by its own structure, without the need to install a pressure sensor to monitor the water pressure in the water pipe and a drive component to control the opening of the pressure relief valve.

[0014] In some embodiments, the pressure relief valve includes a solenoid reversing valve, which has a first working state and a second working state, and the water pipe is also provided with a pressure sensor for monitoring the water pressure in the water pipe.

[0015] When the drive pump is working, if the water pressure in the clean water pipe is less than the set pressure value, the electromagnetic reversing valve is in the first working state, and the water in the clean water pipe is sprayed out through the nozzle; if the water pressure in the clean water pipe is greater than or equal to the set pressure value, the electromagnetic reversing valve switches from the first working state to the second working state, and the water in the clean water pipe is discharged through the electromagnetic reversing valve.

[0016] The advantages of adopting the above technical solution are: the electromagnetic directional valve has a faster response and higher control accuracy.

[0017] In some embodiments, the set pressure value is in the range of 70-90 kPa.

[0018] In some embodiments, the setting parameters include the operating current of the drive pump, and the setting threshold includes a setting current value.

[0019] In some embodiments, the range of the set current value is 300mA-500mA.

[0020] In some embodiments, the pressure relief valve is located downstream of the drive pump in the direction of water flow in the clean water pipe.

[0021] The beneficial effects of adopting the above technical solution are as follows: the outlet pressure of the drive pump is usually greater than the inlet pressure. By placing the pressure relief valve downstream of the drive pump, pressure can be relieved in a timely manner, which is beneficial to the protection of the clean water pipe.

[0022] In some embodiments, the drive pump is a peristaltic pump.

[0023] In some embodiments, the piping assembly further includes a sewage pipe, with at least a portion of the clean water pipe located within the sewage pipe.

[0024] The beneficial effects of adopting the above technical solution are: since at least a section of the clean water pipe is inside the sewage pipe, the sewage pipe can protect a section of the clean water pipe; moreover, it improves the aesthetics.

[0025] The second aspect of this application discloses a cleaning machine comprising a clean water tank, a brush head, a wastewater tank, and a piping assembly as described in the first aspect, the piping assembly connecting the clean water tank, the brush head, and the wastewater tank.

[0026] The cleaning machine adopts any one or more embodiments of the above-mentioned pipeline components, and therefore has the beneficial effects of the above-mentioned embodiments, which will not be described in detail here.

[0027] In some embodiments, the brush head is provided with a nozzle connected to the water pipe, and the inlet end of the nozzle is provided with an anti-clogging component to prevent nozzle blockage.

[0028] The beneficial effects of adopting the above technical solution are as follows: Since the nozzle orifice is small and the water in the clean water tank may contain impurities, installing an anti-clogging component at the nozzle inlet can reduce the risk of nozzle clogging.

[0029] In some embodiments, the anti-clogging component is a filter screen.

[0030] The advantages of adopting the above technical solution are: the filter screen is a standard product, the cost is low, and the filtration effect is good.

[0031] In some embodiments, the piping assembly further includes a drain pipe, through which the pressure relief valve is connected to the wastewater tank or the clean water tank.

[0032] The advantages of adopting the above technical solution are: the pressure relief valve is connected to the sewage tank or clean water tank through the drain pipe, eliminating the need for an additional backup water tank and simplifying the structure of the cleaning machine.

[0033] In some embodiments, the brush head is further provided with a drive pump switch for controlling the start and stop of the drive pump.

[0034] The beneficial effects of adopting the above technical solution are as follows: by controlling the start and stop of the drive pump through the drive pump switch, the drive pump does not need to be in operation immediately after the cleaning machine is connected to the power supply, thus avoiding overheating and damage to the drive pump due to prolonged operation and extending the service life of the drive pump.

[0035] In some embodiments, the drive pump switch includes a button, wherein the drive pump is in a start state when the button is pressed and in a stop state when the button is released.

[0036] The beneficial effects of adopting the above technical solution are: it facilitates flexible control of the nozzle spraying water.

[0037] A third aspect of this application provides a cleaning system comprising a base station and a cleaning machine as described in the second aspect, the cleaning machine being capable of being placed at the base station.

[0038] The cleaning system employs any one or more embodiments of the cleaning machine described above, and thus possesses the beneficial effects of the aforementioned embodiments, which will not be elaborated upon here.

[0039] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a cleaning machine provided in some embodiments of this application;

[0042] Figure 2 yes Figure 1 The diagram shown is a structural schematic of the cleaning machine after the bottom cover has been removed, from another perspective.

[0043] Figure 3 yes Figure 2 The diagram shown is a structural schematic of the cleaning machine for removing sewage pipes.

[0044] Figure 4 These are schematic diagrams of the piping components provided in some embodiments of this application;

[0045] Figure 5 yes Figure 4 A cross-sectional view of the pressure relief valve of the pipeline assembly shown;

[0046] Figure 6 This is a cross-sectional view of a brush head provided in some embodiments of this application;

[0047] Figure 7 yes Figure 6 The image shown is a magnified view of the brush head at point A.

[0048] Figure 8 yes Figure 6 The image shows a magnified view of the brush head at point B.

[0049] The markings in the diagram mean:

[0050] 100. Cleaning machine;

[0051] 10. Piping components;

[0052] 11. Clean water pipe; 111. First pipe section; 112. Second pipe section; 113. Third pipe section; 114. Fourth pipe section;

[0053] 12. Drive pump; 121. Pump inlet; 122. Pump outlet;

[0054] 13. Pressure relief valve; 131. Valve inlet; 132. Valve outlet; 133. Pressure relief port; 134. Plug; 135. First elastic element; 136. Valve body;

[0055] 14. Sewage pipe;

[0056] 15. Drainage pipe;

[0057] 20. Clean water tank;

[0058] 30. Sewage tank; 31. Sewage inlet; 311. Cover plate;

[0059] 40. Brush head; 41. Brush bristles; 42. Suction port;

[0060] 50. Nozzle; 51. Anti-clogging component;

[0061] 60. Pump drive switch; 61. Second elastic element; 62. Button; 63. Spring; 64. Circuit structure;

[0062] 70. Fan;

[0063] 80. Handle. Detailed Implementation

[0064] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0066] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0067] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0068] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0069] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0070] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0071] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0072] An embodiment of the first aspect of this application provides a piping assembly that can be applied to a cleaning machine. Please refer to... Figure 1 The cleaning machine 100 includes a piping assembly 10, a clean water tank 20, a wastewater tank 30, a brush head 40, a nozzle 50, a drive pump switch 60, and a blower 70. The nozzle 50 and drive pump switch 60 are located on the brush head 40. When cleaning is required, the brush head 40 is held and the drive pump switch 60 is pressed. Water from the clean water tank 20 is sprayed through the piping assembly 10 and from the nozzle 50 onto the item to be cleaned. The brush 41 of the brush head 40 moves repeatedly to clean the item. Simultaneously, under the suction of the blower 70, a negative pressure is created inside the wastewater tank 30, and wastewater generated from cleaning the item is drawn into the piping assembly 10 through the suction port 42 and enters the wastewater tank 30. The water in the clean water tank 20 can be either clean water or cleaning solution.

[0073] Please refer to Figure 2 and Figure 4 The pipeline assembly 10 includes a clean water pipe 11, a drive pump 12, and a pressure relief valve 13. The first end of the clean water pipe 11 is connected to the clean water tank 20, and the second end of the clean water pipe 11 is connected to the nozzle 50; the drive pump 12 is connected to the clean water pipe 11, and the pressure relief valve 13 is connected to the clean water pipe 11.

[0074] The first end of the clean water pipe 11 is connected to the clean water tank 20, and the second end of the clean water pipe 11 is connected to the nozzle 50. It can be understood that, driven by the drive pump 12, the clean water pipe 11 can transport the water in the clean water tank 20 to the nozzle 50 and spray it out from the nozzle 50.

[0075] The water flow direction of the clear water pipe 11 is as follows: Figure 4 The direction indicated by the middle arrow. The clean water pipe 11 includes a first pipe section 111, a second pipe section 112, a third pipe section 113, and a fourth pipe section 114 arranged sequentially along the water flow direction of the clean water pipe 11. Of course, the clean water pipe 11 may also include the first pipe section 111, the second pipe section 112, and the third pipe section 113, but not the fourth pipe section 114.

[0076] Understandably, the first end of the first pipe section 111 is connected to the clean water tank 20, the second end of the first pipe section 111 is connected to the pump inlet 121 of the drive pump 12, the first end of the second pipe section 112 is connected to the pump outlet 122 of the drive pump 12, the second end of the second pipe section 112 is connected to the valve inlet 131 of the pressure relief valve 13, and the first end of the third pipe section 113 is connected to the valve outlet 132 of the pressure relief valve 13. When the clean water pipe 11 includes the fourth pipe section 114, the second end of the third pipe section 113 is connected to the first end of the fourth pipe section 114, and the second end of the fourth pipe section 114 is connected to the nozzle 50. In this case, the first end of the first pipe section 111 constitutes the first end of the clean water pipe 11, and the second end of the fourth pipe section 114 constitutes the second end of the clean water pipe 11. When the water pipe 11 does not include the fourth pipe section 114, the second end of the third pipe section 113 is connected to the nozzle 50. At this time, the first end of the first pipe section 111 constitutes the first end of the water pipe 11, and the second end of the third pipe section 113 constitutes the second end of the water pipe 11.

[0077] It is understandable that, in the direction of water flow in the clear water pipe 11, the pressure relief valve 13 can be located downstream of the drive pump 12. Since the outlet pressure of the drive pump 12 is greater than the inlet pressure of the drive pump 12, placing the pressure relief valve 13 downstream of the drive pump 12 allows for timely pressure relief, thus protecting the clear water pipe 11. Of course, in the direction of water flow in the clear water pipe 11, the pressure relief valve 13 can also be located upstream of the drive pump 12.

[0078] When the drive pump 12 is working, if the set parameter of the pipeline assembly 10 is less than the set threshold, the water in the clean water pipe 11 is sprayed out through the nozzle 50; if the set parameter of the pipeline assembly 10 is greater than or equal to the set threshold, at least part of the water in the clean water pipe 11 is discharged through the pressure relief valve 13.

[0079] It is understandable that the drive pump 12 can be a regular water pump or a peristaltic pump.

[0080] For example, the setting parameters of the piping assembly 10 may include the water pressure in the clean water pipe 11, and the setting threshold may include a setting pressure value; or, the setting parameters of the piping assembly 10 may also include the current driving the pump 12, and the setting threshold may include a setting current value; or, the setting parameters of the piping assembly 10 may simultaneously include the water pressure in the clean water pipe 11 and the current driving the pump 12, and the setting threshold may simultaneously include a setting pressure value and a setting current value.

[0081] It is understood that when the set parameters of the pipeline assembly 10 are less than the set threshold, all the water in the clean water pipe 11 will be sprayed out through the nozzle 50 and will not be discharged from the pressure relief valve 13. When the set parameters of the pipeline assembly 10 are greater than or equal to the set threshold, some of the water in the clean water pipe 11 will be sprayed out through the nozzle 50 and discharged through the pressure relief valve 13; or, the water in the clean water pipe 11 will not be sprayed out through the nozzle 50 and all the water in the clean water pipe 11 will be discharged through the pressure relief valve 13.

[0082] It is understood that the pressure relief valve 13 can be connected to the clean water tank 20, that is, the water in the clean water pipe 11 is discharged to the clean water tank 20 through the pressure relief valve 13; or, the pressure relief valve 13 can be connected to the sewage tank 30, that is, the water in the clean water pipe 11 is discharged to the sewage tank 30 through the pressure relief valve 13; or, the pressure relief valve 13 can also be connected to the standby water tank, that is, the water in the clean water pipe 11 is discharged to the standby water tank through the pressure relief valve 13; or, the pressure relief valve 13 can also be connected to the sewage pipe 14.

[0083] The beneficial effects of the pipeline assembly 10 provided in this application embodiment are as follows: The pipeline assembly 10 of this application includes a clean water pipe 11, a drive pump 12, and a pressure relief valve 13. Both the drive pump 12 and the pressure relief valve 13 are connected to the clean water pipe 11, and the pressure relief valve 13 is located downstream of the drive pump 12 in the water flow direction of the clean water pipe 11. When the drive pump 12 is working, if the set parameters of the pipeline assembly 10 are less than a set threshold, the water in the clean water pipe 11 is sprayed out through the nozzle 50; if the set parameters of the pipeline assembly 10 are greater than or equal to the set threshold, at least a portion of the water in the clean water pipe 11 is discharged through the pressure relief valve 13 to avoid excessive pressure in the clean water pipe 11, thereby reducing or eliminating the risk of damage to the clean water pipe 11 and improving the service life of the clean water pipe 11.

[0084] In some embodiments, the setting parameters of the piping assembly 10 include the water pressure in the clean water pipe 11, and the setting threshold includes a setting pressure value.

[0085] For example, please refer to Figure 5 The pressure relief valve 13 includes a valve body 136, a plug 134 and a first elastic element 135 disposed within the valve body 136, and the valve body 136 has a pressure relief port 133. This pressure relief valve 13 has a simple structure and low manufacturing cost; moreover, it can achieve pressure relief using its own structure, eliminating the need for a pressure sensor to monitor the water pressure in the clean water pipe 11, and a drive mechanism to control the opening of the pressure relief valve 13.

[0086] When the drive pump 12 is working, if the water pressure in the clean water pipe 11 is less than the set pressure value, the plug 134 closes the pressure relief port 133 under the elastic force of the first elastic element 135, and the water in the clean water pipe 11 is sprayed out through the nozzle 50; if the water pressure in the clean water pipe 11 is greater than or equal to the set pressure value, under the action of the water pressure, the plug 134 overcomes the elastic force of the first elastic element 135 to open the pressure relief port 133, and part of the water in the clean water pipe 11 is sprayed out through the nozzle 50, and part of the water in the clean water pipe 11 is discharged through the pressure relief valve 13.

[0087] It is understandable that the first elastic element 135 can be a spring.

[0088] For example, the pressure relief valve 13 includes a solenoid directional valve, which has a first operating state and a second operating state. A pressure sensor for monitoring the water pressure within the clean water pipe 11 is also provided on the clean water pipe 11. The solenoid directional valve has a fast response and high control accuracy.

[0089] The first working state of the electromagnetic directional valve is that the valve inlet 131 and valve outlet 132 of the pressure relief valve 13 are connected, and the second working state of the electromagnetic directional valve is that the valve inlet 131 and pressure relief port 133 of the pressure relief valve 13 are connected.

[0090] When the drive pump 12 is working, if the water pressure in the clean water pipe 11 is less than the set pressure value, the solenoid reversing valve is in the first working state, and the water in the clean water pipe 11 is sprayed out through the nozzle 50; if the water pressure in the clean water pipe 11 is greater than or equal to the set pressure value, the pressure sensor sends a signal to the controller, and the controller controls the solenoid reversing valve to switch from the first working state to the second working state, and all the water in the clean water pipe 11 is discharged through the solenoid reversing valve.

[0091] In some embodiments, the pressure value is set in the range of 70-90 kPa.

[0092] It is understandable that the pressure setting can be 70 kPa, 80 kPa, or 90 kPa.

[0093] Taking a set pressure value of 70 kPa as an example, when the drive pump 12 is working, if the water pressure in the clean water pipe 11 is less than 70 kPa, the water in the clean water pipe 11 will be sprayed out through the nozzle 50; if the water pressure in the clean water pipe 11 is greater than or equal to 70 kPa, part or all of the water in the clean water pipe 11 will be discharged through the pressure relief valve 13.

[0094] In some embodiments, the setting parameters include the operating current of the drive pump 12, and the setting threshold includes the setting current value.

[0095] When the water pressure in the clean water pipe 11 increases, the operating current of the driving pump 12 also increases accordingly. The software determines whether the water in the clean water pipe 11 should be discharged through the pressure relief valve 13 by judging the magnitude of the operating current.

[0096] For example, the current value is set in the range of 300mA-500mA.

[0097] It is understandable that the current setting can be 300mA, 400mA, or 500mA.

[0098] Taking a set current value of 300mA as an example, when the drive pump 12 is working, if the working current of the drive pump 12 is less than 300mA, the water in the clean water pipe 11 will be sprayed out through the nozzle 50; if the working current of the drive pump 12 is greater than or equal to 300mA, part or all of the water in the clean water pipe 11 will be discharged through the pressure relief valve 13.

[0099] Please refer to Figure 2 and Figure 3 In some embodiments, the piping assembly 10 further includes a sewage pipe 14, with at least a portion of the clean water pipe 11 located within the sewage pipe 14.

[0100] The first end of the sewage pipe 14 is connected to the sewage tank 30, and the second end of the sewage pipe 14 is connected to the brush head 40. The sewage generated by the brush head 40 during cleaning is sucked into the sewage tank 30 through the sewage pipe 14.

[0101] For example, the fourth segment 114 of the clean water pipe 11 is located inside the sewage pipe 14. The first segment 111, the second segment 112, and the third segment 113 are covered by the bottom cover of the cleaning machine 100 and are not exposed.

[0102] Based on the above technical solution, since the fourth section 114 of the clean water pipe 11 is inside the sewage pipe 14, the sewage pipe 14 can protect the fourth section 114; moreover, only the sewage pipe 14 can be seen from the outside, which improves the aesthetics.

[0103] Referring to the figures, a second aspect of this application discloses a cleaning machine 100. The cleaning machine 100 includes a clean water tank 20, a brush head 40, a wastewater tank 30, and a piping assembly 10 as described in the first aspect, the piping assembly 10 connecting the clean water tank 20, the brush head 40, and the wastewater tank 30.

[0104] The brush head 40 is equipped with a nozzle 50 and a drive pump switch 60. When cleaning is required, the brush head 40 is held and the drive pump switch 60 is pressed. Water in the clean water tank 20 is sprayed onto the item to be cleaned through the pipe assembly 10 and the nozzle 50. The brush 41 of the brush head 40 moves repeatedly to clean the item. At the same time, under the suction of the blower 70, a negative pressure is generated inside the wastewater tank 30. Wastewater generated during cleaning is sucked into the pipe assembly 10 through the suction port 42 and enters the wastewater tank 30. The water in the clean water tank 20 can be clean water or cleaning solution.

[0105] For example, the first pipe section 111, the second pipe section 112, the third pipe section 113, the drive pump 12 and the pressure relief valve 13 are all located at the bottom of the cleaning machine 100, and the fourth pipe section 114 and the sewage pipe 14 are wrapped around the main structure of the cleaning machine 100.

[0106] The cleaning machine 100 adopts any one or more embodiments of the above-mentioned pipeline assembly 10. Therefore, when the pressure in the clean water pipe 11 is too high due to the blockage of the nozzle 50, at least part of the water in the clean water pipe 11 can be discharged through the pressure relief valve 13 to avoid excessive pressure in the clean water pipe 11, thereby reducing or eliminating the risk of damage to the clean water pipe 11, reducing the number of times the clean water pipe 11 is replaced, and reducing the operating cost of the cleaning machine 100.

[0107] For example, the cleaning machine 100 is a fabric cleaning machine that can clean dust, bacteria, and stubborn stains from the surfaces of items such as sofas, carpets, curtains, and chairs.

[0108] Please refer to Figure 6 and Figure 7 In some embodiments, the brush head 40 is provided with a nozzle 50 connected to the water pipe 11, and the inlet end of the nozzle 50 is provided with an anti-clogging component 51 for preventing the nozzle 50 from becoming clogged.

[0109] Since the nozzle 50 has a small orifice and the water in the clean water tank 20 may contain impurities, an anti-clogging component 51 is installed at the inlet end of the nozzle 50 to reduce the risk of the nozzle 50 becoming clogged.

[0110] For example, the anti-clogging component 51 is a filter screen.

[0111] In some embodiments, the piping assembly 10 further includes a drain pipe 15, through which the pressure relief valve 13 is connected to a wastewater tank 30. The wastewater tank 30 has a wastewater inlet 31, and the end of the drain pipe 15 away from the pressure relief valve 13 is located at the wastewater inlet 31. A cover plate 311 is fixed at the wastewater inlet 31, and the first end of the wastewater pipe 14 is connected to the cover plate 311 to communicate with the wastewater tank 30. Of course, the pressure relief valve 13 can also be connected to a clean water tank 20 through the drain pipe 15.

[0112] Based on the above technical solution, the pressure relief valve 13 is connected to the sewage tank 30 or the clean water tank 20 through the drain pipe 15, eliminating the need for an additional spare water tank and simplifying the structure of the cleaning machine 100.

[0113] In some embodiments, the cleaning machine 100 also includes a backup water tank, and the pressure relief valve 13 can also be connected to the backup water tank via the drain pipe 15.

[0114] Please refer to Figure 6 and Figure 8In some embodiments, the brush head 40 is also provided with a drive pump switch 60 for controlling the start and stop of the drive pump 12.

[0115] Based on the above technical solution, the drive pump 12 is started and stopped by the drive pump switch 60, so that the drive pump 12 does not need to be in operation after the cleaning machine 100 is powered on, thus avoiding overheating and damage to the drive pump 12 due to long-term operation and extending the service life of the drive pump 12.

[0116] In some embodiments, the drive pump switch 60 includes a button 62, which is used to start the drive pump 12 when the button 62 is pressed and to stop the drive pump 12 when the button 62 is released.

[0117] For example, the drive pump switch 60 also includes a spring 63 and a second elastic element 61. When water spraying from the nozzle 50 is required, the button 62 is manually pressed from bottom to top. The button 62 moves the spring 63 upward, thereby turning on the circuit structure 64 and starting the drive pump 12. When it is necessary to stop the nozzle 50 from spraying water, the button 62 is released. Under the elastic force of the second elastic element 61, the button 62 resets, and the spring 63 resets under its own elastic force, thereby turning off the circuit structure 64 and stopping the drive pump 12. The circuit structure 64 is connected to the drive pump 12 via wires.

[0118] Based on the above technical solution, it is beneficial to flexibly control the water spray from nozzle 50.

[0119] In some embodiments, instead of a drive pump switch 60 for controlling the start and stop of the drive pump 12, a water spray switch for controlling the on / off of the clean water pipe 11 is provided on the brush head 40.

[0120] In some embodiments, the top center of the cleaning machine 100 is the handle 80, the clean water tank 20 and the wastewater tank 30 are respectively on both sides of the handle 80, the blower 70 and the clean water tank 20 are on the same side of the handle 80; part of the pipeline assembly 10 is located at the bottom of the cleaning machine 100, part of the pipeline assembly 10 is wrapped around the main structure of the cleaning machine 100, and the brush head 40 is hung on the main structure of the cleaning machine 100.

[0121] A third aspect of this application provides a cleaning system comprising a base station and a cleaning machine 100 as described in the second aspect, the cleaning machine 100 being capable of being placed at the base station.

[0122] The cleaning system adopts any one or more embodiments of the cleaning machine 100 described above, and therefore has the beneficial effects of the above embodiments, which will not be described in detail here.

[0123] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A plumbing assembly, comprising: For use in a cleaning machine, the cleaning machine including a clean water tank and a nozzle; the piping assembly includes: A clean water pipe, the first end of which is connected to the clean water tank, and the second end of which is connected to the nozzle; Drive the pump, which is connected to the clean water pipe; A pressure relief valve is connected to the clean water pipe; When the drive pump is working, if the set parameter of the pipeline assembly is less than the set threshold, the water in the clean water pipe is sprayed out through the nozzle; if the set parameter of the pipeline assembly is greater than or equal to the set threshold, at least a portion of the water in the clean water pipe is discharged through the pressure relief valve.

2. The plumbing assembly of claim 1, wherein, The set parameters include the water pressure in the clean water pipe, and the set threshold includes the set pressure value.

3. The plumbing assembly of claim 2, wherein, The pressure relief valve includes a valve body, a plug and a first elastic element disposed within the valve body, and the valve body has a pressure relief port; When the drive pump is working, if the water pressure in the clean water pipe is less than the set pressure value, the plug closes the pressure relief port under the elastic force of the first elastic element, and the water in the clean water pipe is sprayed out through the nozzle; if the water pressure in the clean water pipe is greater than or equal to the set pressure value, the plug overcomes the elastic force of the first elastic element to open the pressure relief port, and at least a portion of the water in the clean water pipe is discharged through the pressure relief valve.

4. The plumbing assembly of claim 2, wherein, The pressure relief valve includes a solenoid reversing valve, which has a first working state and a second working state. The water pipe is also equipped with a pressure sensor for monitoring the water pressure in the water pipe. When the drive pump is working, if the water pressure in the clean water pipe is less than the set pressure value, the electromagnetic reversing valve is in the first working state, and the water in the clean water pipe is sprayed out through the nozzle; if the water pressure in the clean water pipe is greater than or equal to the set pressure value, the electromagnetic reversing valve switches from the first working state to the second working state, and the water in the clean water pipe is discharged through the electromagnetic reversing valve.

5. The plumbing assembly of claim 2, wherein, The set pressure value ranges from 70 to 90 kPa.

6. The plumbing assembly of claim 1, wherein, The setting parameters include the operating current of the drive pump, and the setting threshold includes a setting current value.

7. The plumbing assembly of claim 6, wherein, The range of the set current value is 300mA-500mA.

8. The plumbing assembly of any one of claims 1-7, wherein, In the direction of water flow in the clean water pipe, the pressure relief valve is located downstream of the drive pump.

9. The plumbing assembly of any one of claims 1-8, wherein, The driving pump is a peristaltic pump.

10. The piping assembly as claimed in any one of claims 1-9, characterized in that, The piping assembly also includes a sewage pipe, with at least a portion of the clean water pipe located within the sewage pipe.

11. A cleaning machine, characterized in that, It includes a clean water tank, a brush head, a wastewater tank, and a piping assembly as described in any one of claims 1-10, the piping assembly connecting the clean water tank, the brush head, and the wastewater tank.

12. The cleaning machine as described in claim 11, characterized in that, The brush head is provided with a nozzle that is connected to the water pipe, and the inlet end of the nozzle is provided with an anti-clogging component to prevent the nozzle from becoming clogged.

13. The cleaning machine as described in claim 12, characterized in that, The anti-clogging component is a filter screen.

14. The cleaning machine of any one of claims 11-13, wherein, The piping assembly also includes a drain pipe, and the pressure relief valve is connected to the sewage tank or the clean water tank through the drain pipe.

15. The cleaning machine as described in any one of claims 11-14, characterized in that, The brush head is also equipped with a drive pump switch to control the start and stop of the drive pump.

16. The cleaning machine as described in claim 15, characterized in that, The drive pump switch includes a button. When the button is pressed, the drive pump is in the start state, and when the button is released, the drive pump is in the stop state.

17. A cleaning system characterized by, It includes a base station and a cleaning machine as described in any one of claims 11-16, wherein the cleaning machine can be placed at the base station.

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