Pressure regulating filtering device and circulating integrated water tank

Abstract

The application provides a pressure regulating filter device and a circulating integrated water tank, which are used for a cleaner. The pressure regulating filter device is installed in the circulating integrated water tank and comprises a filter assembly, a pressure regulating groove and a pressure regulating assembly. The filter assembly comprises a skeleton with an open top surface. The pressure regulating groove is connected with the front wall and the rear wall of the skeleton along the longitudinal direction of the water tank. The pressure regulating assembly comprises a plurality of pressure regulating balls arranged in the pressure regulating groove. Each pressure regulating ball can move in the longitudinal direction of the pressure regulating groove at any position. The circulating integrated water tank is provided with a water tank bayonet which can make the water circulation system of the cleaner work. The circulating integrated water tank comprises a water tank body set, a water tank bayonet, a water tank cover and a pressure regulating filter device. The water tank body set is in a cylindrical shape with an open large end, a closed small end and a hollow structure. The water tank bayonet is installed on the end face of the small end of the water tank body set. The water tank cover covers the open large end of the water tank body set. The pressure regulating filter device can be pushed into the water tank body set along the bayonet groove of the water tank body to realize the mutual fixation of the two.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202311369874.X, entitled "A Pressure Regulating Filter Device", filed on October 21, 2023, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning appliance technology, and in particular to a pressure regulating filter device for an integrated circulating water tank and an integrated circulating water tank. Background Technology

[0003] In daily life, people are accustomed to using cleaning appliances to clean their homes and household and travel items. To ensure sufficient water usage, cleaning appliances are equipped with water tanks. Currently, some cleaning appliances use separate cleaning and wastewater tanks, while others use integrated circulating water tanks. Integrated cleaning and wastewater tanks primarily treat the wastewater after cleaning before it enters the tank, thus improving water recycling.

[0004] When a cleaner using an integrated circulating water tank continuously cleans the cleaning roller, during the automatic cleaning process, some air trapped in the gaps of the cleaning roller's scrubbing sponge layer enters the cleaning fluid circuit along with the squeezed water. This increases the circuit pressure, resulting in low fluid delivery efficiency. In severe cases, the accumulated pressure in the cleaning fluid circuit can "break open" the seals at joints and connections in the delivery pipeline, causing leakage in the cleaning fluid circuit and seriously affecting the cleaner's performance.

[0005] The integrated circulating water tank of a cleaner is generally a sealed container. To ensure the normal flow of clean and wastewater during operation, automatic internal pressure regulation of the tank is required. Typically, the threshold for automatically regulating the pressure difference between the inside and outside of the integrated water tank is determined by the opening threshold of one or more one-way valves installed inside the tank. This threshold cannot be easily adjusted for different application scenarios. Furthermore, because the integrated circulating water tank needs to filter wastewater into clean water, users will inevitably need to frequently clean and maintain the filter device. This maintenance must be convenient and quick. Summary of the Invention

[0006] The main technical problem solved by this invention is to provide a pressure regulating filter device and an integrated circulating water tank. This pressure regulating filter device can filter the sewage flowing back to the tank through the integrated circulating water tank installed on the cleaner, while also releasing the pressure accumulated in the entire water tank. This reduces the adverse effects of increased pressure in the cleaner's pipeline caused by increased pressure in the water tank. The preset pressure threshold can be achieved by simply increasing or decreasing the number of corresponding pressure regulating balls without replacing one-way valves of different specifications. At the same time, the disassembly and maintenance of this pressure regulating filter device is also very convenient for users.

[0007] To address the aforementioned problems, in a first aspect, the present invention provides a pressure regulating filter device, installed within the integrated circulating water tank of a cleaner, comprising:

[0008] A filter assembly, including a frame with an opening on the top surface;

[0009] The pressure regulating tank runs through the front and rear walls of the frame, connecting them along the longitudinal direction of the water tank.

[0010] The pressure regulating assembly includes multiple pressure regulating balls disposed in the pressure regulating groove, each of which can move at any position along the longitudinal direction of the pressure regulating groove;

[0011] The integrated circulating water tank is equipped with a water tank slot, which allows the cleaner's water system to circulate.

[0012] In one or more alternative embodiments, at least two pressure regulating balls are provided in the pressure regulating groove.

[0013] In one or more alternative embodiments, the top surface of the frame is detachably connected to the top wall of the integrated circulating water tank.

[0014] In one or more alternative embodiments, when two or more of the voltage regulating balls are not on the same horizontal plane, the two or more voltage regulating balls are stacked together.

[0015] In one or more alternative embodiments, the water tank opening is provided with a clean water outlet, a wastewater outlet, and a vent outlet.

[0016] In one or more alternative embodiments, the front and rear walls of the frame are solid walls. The front wall abuts against the water tank slot and is provided with a water outlet that connects to the clean water outlet and an exhaust outlet that connects to the exhaust outlet. The lower part of the rear wall is provided with a handle that facilitates sliding the entire pressure regulating filter device out of the integrated circulating water tank.

[0017] In one or more alternative embodiments, the pressure regulating groove is provided at both ends with pre-pressure regulating notches that can be blocked by pressure regulating balls and connect to the cavity of the integrated circulating water tank, and the pressure regulating groove is provided in the middle with a pressure regulating rear section channel that communicates with the exhaust port.

[0018] In one or more alternative embodiments, a pressure regulating rear section channel extending downward from the top of the pressure regulating groove is provided at the middle of the pressure regulating groove close to one of its side walls. When the pressure regulating rear section channel extends to near the bottom wall of the frame, it turns 90 degrees toward the front end face of the frame and continues to extend toward the front end face until it connects to the exhaust port.

[0019] In one or more alternative embodiments, a one-way valve is provided at the connection between the pressure regulating downstream channel and the pressure regulating tank.

[0020] In one or more alternative embodiments, the pressure regulating downstream channel is provided with a one-way valve mounting step at the beginning of the top of the pressure regulating groove. The one-way valve mounting step forms a gap between the pressure regulating downstream channel and the pressure regulating groove, which is just enough to install the one-way valve and connect the pressure regulating groove and the pressure regulating downstream channel.

[0021] In one or more alternative embodiments, the one-way valve is a duckbill valve made of silicone material.

[0022] In one or more alternative embodiments, the user can adjust the internal and external pressure difference threshold of the automatic pressure regulation of the integrated circulating water tank by setting different numbers of pressure regulating balls in the pressure regulating tank.

[0023] In one or more alternative embodiments, the filtering assembly further includes filter screens disposed on the two outer sides and the bottom surface of the frame.

[0024] In one or more alternative embodiments, the frame is a long box shape, with open sides and bottom, and the filter screen is disposed in the open areas of the frame.

[0025] In one or more alternative embodiments, the pressure regulating assembly further includes a sealing member that fills the gap between the top opening of the skeleton and the top wall.

[0026] In one or more alternative embodiments, the sealing member also closes the outer edge of the top opening of the pressure regulating groove.

[0027] In one or more alternative embodiments, the pressure regulating component and the filter component are integrally formed.

[0028] In one or more optional embodiments, the pressure regulating component is an "I"-shaped structure. The pressure regulating component connecting frame is provided with a front end face with a water outlet and an air vent, and a rear end face without a water outlet and an air vent. The upper surface of the "I"-shaped structure facing the water tank body kit is provided with a pressure regulating groove for accommodating the pressure regulating device. The root of the pressure regulating groove connecting the front end face and the rear end face of the "I"-shaped structure is provided with multiple pre-pressure regulating notches. The two walls of the pressure regulating groove extend from the pre-pressure regulating notches with multiple snap-fit ​​ribs.

[0029] In one or more alternative embodiments, the sealing member is parallel to the pressure regulating groove and closes the pressure regulating groove from the top opening. Near both ends of the pressure regulating groove, two snap-fit ​​interfaces extend upward from the bottom of the pressure regulating groove. The sealing member, which can be removed upward, is snapped into the snap-fit ​​interfaces. At least two pressure regulating balls are provided in the pressure regulating groove between the two snap-fit ​​interfaces.

[0030] In one or more alternative embodiments, the sealing member is provided with a right pressure regulating ball sealing member and a left pressure regulating ball sealing member at both ends, which match the two ends of the pressure regulating groove. The right pressure regulating ball sealing member has a right pressure regulating port at the end opposite to the pressure regulating ball that is connected to the nearest pre-pressure regulating gap. The left pressure regulating ball sealing member has a left pressure regulating port at the end opposite to the pressure regulating ball that is connected to the nearest pre-pressure regulating gap. Under the action of gravity, the pressure regulating ball can be used to block the right pressure regulating port and the left pressure regulating port, thereby blocking the pre-pressure regulating gap, and is restricted to moving only in the pressure regulating groove between the right pressure regulating ball sealing member and the left pressure regulating ball sealing member.

[0031] The pressure regulating ball, the right pressure regulating ball sealing component, the left pressure regulating ball sealing component, and the pressure regulating groove together form a complete pressure regulating control component with two sets of independent pressure regulating control switches.

[0032] Secondly, the present invention provides a circulating integrated water tank, installed in a cleaner, comprising:

[0033] The water tank body kit is cylindrical, with an open large end and a closed, hollow small end;

[0034] The water tank bayonet is installed on the small end face of the water tank body assembly.

[0035] The water tank cap fits over the large opening of the water tank body assembly.

[0036] As described in the first aspect, the pressure regulating filter device is slidably engaged within the water tank body assembly;

[0037] The pressure regulating filter device is pushed into the interior of the water tank body assembly along the slot provided on the inner wall of the water tank body assembly, thereby achieving mutual fixation between the two.

[0038] In one or more alternative embodiments, the water tank body kit includes:

[0039] The water tank body is cylindrical, open at the large end and closed at the small end, and has a cavity.

[0040] The bayonet section closes the cavity at the small end of the water tank body.

[0041] In one or more alternative embodiments, the bayonet portion is provided with a clean water channel connecting to a clean water inlet, a sewage channel connecting to a sewage outlet, and an exhaust channel connecting to an exhaust outlet.

[0042] In one or more alternative embodiments, the water tank body and the bayonet portion are integrally formed, the side wall of the water tank body has the same wall thickness as the end wall of the bayonet portion, and the bayonet portion has a multi-layer wall thickness structure in the depth direction of the water tank body.

[0043] In one or more alternative embodiments, the multi-layer wall thickness structure includes:

[0044] The first step end face abuts against one side end face of the bayonet plate of the water tank bayonet;

[0045] The second step end face abuts against one side end face of the bayonet sealing gasket of the water tank bayonet;

[0046] The third step end face, the sewage channel enclosure wall that encloses the sewage channel, is parallel to the second step end face;

[0047] The fourth step end face abuts against the end face of the pressure regulating filter device that points towards the water tank bayonet.

[0048] In one or more alternative embodiments, the bottom of the cylindrical body at the junction of the water tank body and the cleaner body is flat, and two abutting surfaces are provided along the waist section sloping upward from the flat bottom. The abutting surfaces of the water tank body, the flat bottom, and the sloping waist section connecting the two abut against the cleaner body.

[0049] In one or more alternative embodiments, the inner sidewall of the water tank body is provided with two ribs parallel to the axis of the water tank body for slidingly engaging the pressure regulating filter device. One end of the rib extends along the depth direction of the water tank body to the large end opening of the water tank body, and the other end of the rib extends along the depth direction of the water tank body to the middle of the water tank body.

[0050] In one or more alternative embodiments, the frame is provided with guide wings on both sides that can be slidably engaged with the ribs. One end of the guide wing extends along the depth direction of the filter assembly frame to the rear end face of the filter assembly frame where no water outlet or exhaust port is provided, and the other end of the guide wing extends along the depth direction of the filter assembly frame to the middle of the frame depth direction.

[0051] In one or more alternative embodiments, the end face of the sewage channel of the bayonet is provided with an abutment, one end of the abutment facing the outside of the water tank body is provided with a chamfer, and the other end is provided with a double-layer connecting ring wall that does not conduct outwards, and a spring is engaged at the hollow part of the double-layer connecting ring wall.

[0052] In one or more alternative embodiments, the end face of the sewage channel of the bayonet portion is further provided with a sewage channel enclosure wall that abuts against the outer ring wall of the abutment member. The sewage channel enclosure wall has a ring wall corresponding to the inner ring wall of the abutment member on the third step surface. The other end of the spring is engaged with the ring wall, and the abutment member clamps and engages a spring to form a complete elastic abutment assembly.

[0053] In one or more alternative embodiments, the outer annular wall of the abutment, the sewage channel enclosure wall, and the central solid part of the bayonet portion together with the inner wall corresponding to the sewage channel form a sewage side inlet channel. The inlet of the sewage channel is the sewage outlet of the bayonet portion exposed when the abutment is compressed by external force, and the outlet of the sewage channel is the sewage pipe interface. The part of the sewage channel between the sewage outlet and the sewage pipe interface is the sewage side inlet channel.

[0054] In one or more alternative embodiments, a sewage pipe is inserted into the sewage pipe interface.

[0055] In one or more alternative embodiments, the sewage outlet, sewage side inlet channel, sewage pipe interface, and sewage pipe together form the entire sewage channel; when the abutment is pressed by an external force, the abutment compresses the spring accordingly, thereby opening the sewage channel.

[0056] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0057] This invention discloses a pressure-regulating filtration device comprising a filter assembly, a pressure-regulating groove, and a pressure-regulating component. The filter assembly includes a frame with an open top surface and filter screens disposed on the two outer sides and the bottom surface of the frame. The top surface of the frame is detachably connected to the top wall of a circulating integrated water tank. The pressure-regulating groove is connected to the front and rear walls of the frame along the longitudinal direction of the water tank. The pressure-regulating component includes multiple pressure-regulating balls disposed within the pressure-regulating groove and a sealing component filling the gap between the top opening of the frame and the top wall. The circulating integrated water tank is provided with a water tank slot, which has a clean water outlet, a wastewater outlet, and an exhaust outlet, allowing the water system of the cleaner to circulate. The pressure-regulating balls can move at any position along the longitudinal direction of the pressure-regulating groove to adjust the air pressure inside the water tank.

[0058] On one hand, when the integrated circulating water tank equipped with this pressure regulating and filtering device is in use, the water tank is in motion and will not remain in a horizontal state for extended periods. When two or more pressure regulating balls are on the same horizontal plane, even if the pressure regulating balls prevent the pre-pressure regulating ports at both ends of the pressure regulating tank from being connected, one of the pressure regulating balls can be pushed open by the liquid in the water tank under inertia. This will make it relatively easy for the pressure regulating ball to move away from the closed position of the pre-pressure regulating port. This will inevitably allow one pre-pressure regulating port to connect to the water tank through the pressure regulating channel, thus releasing the pressure inside the water tank and balancing the pressure inside and outside the water tank. When two or more pressure regulating balls are not on the same horizontal plane, they accumulate and stack together. When the pressure on the pre-pressure regulating port is greater than the component of the sum of the weights of the two or more pressure regulating balls in the inclined direction of the pressure regulating tank, this pressure can push open the two or more stacked pressure regulating ball groups. This will inevitably allow one pre-pressure regulating port to connect to the water tank through the pressure regulating channel, thus releasing the pressure inside the water tank and balancing the pressure inside and outside the water tank. Users can preset their desired pressure threshold by simply increasing or decreasing the number of pressure regulating balls, without needing to replace the check valve with one-way valves of different specifications.

[0059] On the other hand, the integrated circulating water tank equipped with this pressure regulating filter is also very convenient to maintain. Since the filter assembly of the pressure regulating filter is actually fixedly connected together by the front wall, rear wall and pressure regulating groove of the filter assembly frame, the filter assembly and the pressure regulating groove are a whole. The integrated circulating water tank is provided with ribs that allow the filter assembly to slide and engage. The frame has guide wings on both sides that can slide and engage with the ribs. The lower part of the rear wall of the frame is provided with a handle that makes it easy to slide the entire pressure regulating filter out of the integrated circulating water tank. When the user needs to clean the filter assembly, he / she only needs to hold the handle and pull it outward to pull out the pressure regulating filter assembly, and then the filter assembly can be cleaned. After removing the pressure regulating filter assembly, the user can easily adjust the pressure threshold of the water tank to balance the internal and external pressure by adding or removing the number of pressure regulating balls. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 exceeding the scope of protection claimed by this application.

[0061] Figure 1 An exploded view of an embodiment of a circulating integrated water tank equipped with a pressure regulating filter device.

[0062] Figure 2 for Figure 1A cross-sectional view along the AA direction.

[0063] Figure 3 This is a perspective view of the water tank itself.

[0064] Figure 4 An exploded view of another embodiment of a circulating integrated water tank equipped with a pressure regulating filter.

[0065] Figure 5 This is an exploded view of the checkpoint.

[0066] Figure 6 This is a schematic diagram illustrating the automatic internal pressure adjustment of an integrated circulating water tank equipped with a pressure regulating and filtration device under one usage posture.

[0067] Figure 7 This diagram illustrates the automatic internal pressure adjustment in another usage configuration of an integrated circulating water tank equipped with a pressure regulating filter.

[0068] Figure 8 This is a three-dimensional view of a pressure regulating filter device.

[0069] Figure 9 This is a 3D view of the filter assembly.

[0070] Figure 10 This is an exploded view of a pressure regulating filter device.

[0071] Figure 11 This is a three-dimensional view of the sealing component.

[0072] Figure label:

[0073] 1 is the water tank bayonet;

[0074] 10 is the bayonet end plate, 101 is the clean water outlet, 102 is the sewage outlet, 103 is the vent outlet, and 104 is the screw.

[0075] 11 is a bayonet sealing gasket, 111 is a clean water inlet, 112 is a sewage inlet, and 113 is an exhaust inlet;

[0076] 12 is a two-way piston valve assembly, 121 is a piston valve component, and 122 is a spring;

[0077] 13 is the elastic abutment component, 131 is the abutment part, and 132 is the spring;

[0078] 2 is the water tank body kit;

[0079] 20 is the water tank body, and 201 is the contact surface;

[0080] 21 is the bayonet section, 210 is the fourth step end face, 211 is the clean water channel, 212 is the sewage channel, 2121 is the sewage side inlet channel, 2122 is the sewage pipe interface, 2123 is the sewage channel enclosure, 213 is the vent channel, 214 is the blind hole for fastening screws, 215 is the third step end face, 216 is the second step end face, 217 is the first step end face, and 218 is the central solid part.

[0081] 3 is a pressure regulating filter device;

[0082] 30 is the filter assembly, 301 is the water outlet, 302 is the vent, 303 is the guide vane, 304 is the filter screen, and 305 is the pull handle;

[0083] 31 is the pressure regulating component, 316 is the card interface, 318 is the pre-pressure regulating port, 317 is the pressure regulating channel, 3171 is the exhaust valve mounting step, 3172 is the pressure regulating channel inlet, and 3173 is the pressure regulating channel component.

[0084] 33 is a pressure regulating ball;

[0085] 34 is a check valve;

[0086] 35 is a sealing component, 351 is the first cutout of the sealing component, 352 is the observation window of the cutout of the sealing component, 353 is the second cutout of the sealing component, 354 is the one-way valve installation clearance window, 355 is the right pressure regulating ball sealing component, 3551 is the right sealing bowl-shaped component, 3552 is the right snap-fit ​​component, 3553 is the right pressure regulating port, 356 is the left pressure regulating ball sealing component, 3561 is the left sealing bowl-shaped component, 3562 is the left snap-fit ​​component, and 3563 is the left pressure regulating port;

[0087] 4 is the water tank cap, and 41 is the water tank cap sealing ring;

[0088] H represents the water level in the tank, and h represents the water level in the pressure regulating component.

[0089] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0090] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0091] It should be understood that, in the description of the embodiments of this invention, all directional terms such as "up," "down," "left," "right," "front," and "back" indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of this invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of this invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0092] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0093] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, a physically fixed connection between components, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical signal connection; they can refer to a direct connection or an indirect connection through an intermediate medium or component; they can refer to the internal connection of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0094] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the controller's control circuit, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the software or program control process, it pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0095] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0096] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0097] The following will describe the scheme of this application in detail with reference to the accompanying drawings.

[0098] like Figures 1-7 As shown, a circulating integrated water tank equipped with a pressure regulating filter device is disclosed, which allows users to configure the automatic pressure regulating range.

[0099] like Figure 1 , Figure 2 , Figure 4 , Figures 6-10 As shown, a pressure regulating filter device 3 is disclosed, which is installed in the integrated circulating water tank of a cleaner. The pressure regulating filter device 3 includes a filter assembly 30, a pressure regulating tank (not shown in the figure) and a pressure regulating component 31. The filter assembly 30 includes a frame (not shown in the figure) with an opening on the top surface and filter screens 304 provided on the two outer sides and the bottom surface of the frame. The top surface of the frame is detachably connected to the top wall of the integrated circulating water tank. The pressure regulating tank is along the water The front and rear walls of the frame are connected in the longitudinal direction of the box.The pressure regulating component 31 includes multiple pressure regulating balls 33 disposed in the pressure regulating groove and a sealing component 35 filling the gap between the top opening of the skeleton and the top wall; wherein, the integrated circulating water tank is provided with a water tank bayonet 1, the water tank bayonet is provided with a clean water outlet 101, a wastewater outlet 102 and an exhaust outlet 103, which allows the water system of the cleaner to work in circulation, and the pressure regulating balls 33 can move at any position along the longitudinal direction of the pressure regulating groove to adjust the air pressure in the water tank. When using a circulating integrated water tank equipped with this pressure regulating and filtering device, the tank is in motion and rarely remains horizontal for extended periods. When two or more pressure regulating balls are on the same horizontal plane, even if the pre-pressure regulating ports at both ends of the pressure regulating tank are not connected, one of the regulating balls can be pushed open by the inertia of the liquid in the tank. This makes it relatively easy for the regulating ball to move away from the closed position of the pre-pressure regulating port, thus connecting one of the pre-pressure regulating ports to the water tank through the pressure regulating channel. This allows the pressure inside the tank to be released, thereby balancing the pressure inside and outside the tank. When two or more pressure regulating balls are not on the same horizontal plane... Two or more voltage regulating balls are stacked together Together When the pressure borne by the pre-pressure regulating port is greater than the component of the sum of the weights of the two or more pressure regulating balls in the direction of the inclined surface of the pressure regulating groove, the pressure can break through the two or more pressure regulating ball groups that are superimposed on each other. This will inevitably cause one of the pre-pressure regulating ports to connect to the water tank through the pressure regulating channel, so that the pressure inside the water tank can be released, thereby balancing the pressure inside and outside the water tank. Users can preset their desired pressure threshold by simply increasing or decreasing the corresponding adjustment. The number of balls pressed determines the pressure, eliminating the need to replace check valves of different specifications. .

[0100] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the integrated circulating water tank equipped with the pressure regulating filter device 3 includes a cylindrical water tank body assembly 2 that is open at the large end and closed at the small end and is hollow, a water tank bayonet 1 installed on the small end face of the water tank body assembly 2, a pressure regulating filter device 3 that is slidably engaged in the water tank body assembly 2, and a water tank cover 4 that covers the large end opening of the water tank body assembly 2. The water tank body assembly 2 includes a bayonet portion 21 located on the small end face of the water tank body assembly 2, which allows liquid to enter and exit the water tank body cavity. The bayonet portion 21 is provided with a clean water channel 211, a wastewater channel 212, and an exhaust channel 213. The pressure accumulated in the cavity can be discharged out of the water tank through the pressure regulating filter device 3 along the exhaust channel 213 provided on the bayonet portion 21. The water tank bayonet 1 is further detachably fastened to the bayonet portion 21 by screws. The water tank bayonet 1 can further prevent the liquid contained in the water tank cavity from leaking into other parts of the cleaner during operation. The components of the water tank bayonet 1 are also easy to remove from the cleaner body (not shown in the figure) when the liquid in the cavity needs to be replaced. After removal, the entire water tank can still automatically close the clean water channel 211, wastewater channel 212, and exhaust channel 213 in the bayonet portion 21, so that the entire water tank remains leak-proof when the liquid in the cavity is replaced. The pressure regulating filter device 3 includes features that can be adjusted by the user. Multiple pressure regulating balls 33 in combination, different numbers of pressure regulating balls 33 combined in the pressure regulating filter device 3 can form different water... The pressure difference threshold between the inside and outside of the tank can be adjusted flexibly according to the user's actual needs. all .

[0101] Specifically, Figure 1 An exploded view of an embodiment of a circulating integrated water tank equipped with a pressure regulating filter. Figure 2 for Figure 1 A cross-sectional view along direction A shows a schematic diagram of the water tank bayonet 1, pressure regulating filter device 3, and water tank cover 4 installed onto the water tank body assembly 2. Figure 1 , Figure 2 As shown, based on the water tank body kit 2, firstly, the water tank bayonet 1 can be installed on the small end face of the water tank body kit 2 to form a cavity in the water tank body that can accommodate clean water and wastewater, with the small end face closed and the large end open. Then, The user can install the pressure regulating filter device 3 along the inner wall of the water tank body assembly 2. The slot (not shown in the attached diagram) is pushed into the upper part of the water tank body kit 2 to secure the two together. Finally, the water tank cap 4 is placed over the large end opening of the water tank body assembly 2 to completely seal the cavity of the water tank body assembly 2. When the user needs to clean and maintain the pressure regulating filter device 3 periodically, simply remove the water tank cap 4 and then pull out the pressure regulating filter device 3 to perform separate cleaning and maintenance. After cleaning and maintenance, the pressure regulating filter device 3 is then reinstalled on the inner wall of the water tank body assembly 2.

[0102] Specifically, Figure 3 This is a perspective view of the water tank body 20, showing the end face of the bayonet portion 21 after it is sealed and installed at the small opening end of the water tank body 20. Figure 4 This is an exploded view of another embodiment of the integrated circulating filter water tank, showing in detail the specific structural details of the water tank bayonet 1, the pressure regulating filter device 3, and the water tank cover 4.

[0103] like Figure 2 , Figure 4 As shown, the water tank body assembly 2 includes a cylindrical water tank body 20 with an open large end and a closed small end, and a cavity, and a snap-fit ​​portion 21 that closes the cavity at the small end of the water tank body 20. The water tank body 20 and the snap-fit ​​portion 21 are integrally formed. The side wall of the water tank body 20 (not shown in the figure) has a simple structure but the same wall thickness as the end wall of the snap-fit ​​portion 21 (not shown in the figure). The snap-fit ​​portion 21 has a multi-layer wall thickness structure (not shown in the figure) in the depth direction of the cylindrical water tank body 20. Specifically, as shown in the figure... Figure 2 As shown, the multi-layered wall structure of the bayonet portion 21 includes a first stepped end face 210 that abuts against one side end face of the bayonet plate 10 of the water tank bayonet 1, a second stepped end face 215 that abuts against one side end face of the bayonet sealing gasket 11 of the water tank bayonet 1, a third stepped end face 216 of the sewage channel enclosure wall 2123 that surrounds the sewage channel and is parallel to the second stepped end face 215, and a fourth stepped end face 217 that abuts against the end face of the pressure regulating filter device 3 pointing towards the water tank bayonet 1. This design can improve the ability of the bayonet portion 21 to resist external impact while ensuring the rigidity and strength of the entire water tank body, and can also ensure that the large open end of the water tank body 20 (not shown in the figure) can be easily opened / closed by the water tank cover assembly 4. Figure 3 As shown, the bottom of the cylindrical side of the water tank body 20 where it mates with the cleaner body (not shown in the figure) is flat. Two abutment surfaces 201 are provided along the waist section (not shown in the figure) sloping upwards from the flat bottom. The abutment surfaces 201 of the water tank body 20, the flat bottom, and the sloping waist section connecting them all abut against the cleaner body. Figure 4 As shown, the inner side wall of the water tank body 20 is provided with two ribs (not shown in the figure) parallel to the axis of the water tank body 20 for slidingly engaging the pressure regulating filter device 3. One end of the rib extends along the depth direction of the water tank body 20 to the large end opening of the water tank body 20, and the other end of the rib extends along the depth direction of the water tank body 20 to the middle of the water tank body 20.

[0104] like Figure 2 As shown, combined with Figure 1 , Figure 3Let's take a closer look. The end face of the sewage channel 212 of the bayonet portion 21 is provided with an abutment 131. One end of the abutment 131 facing the outside of the water tank body 20 has a chamfer, and the other end has a double-layered connecting ring wall (not shown in the figure) that does not extend outwards. A spring 132 is precisely engaged in the hollowed-out portion of the double-layered connecting ring wall. The end face of the sewage channel 212 of the bayonet portion 21 is also provided with a sewage channel enclosure wall 2123 that abuts against the outer ring wall of the abutment 131. The sewage channel enclosure wall 2123 has an ring wall (not shown in the figure) on the third step surface that corresponds to the inner ring wall of the abutment 131. The other end of the spring 132 is engaged in this ring wall. A spring 132 is clamped and engaged by 131 to form a complete elastic abutment component 13. The outer ring wall of the abutment 131 (not shown in the figure), the sewage channel enclosure wall 2123, and the central solid part 218 of the bayonet 21, together with the inner wall of the sewage channel 212 (not shown in the figure), enclose the sewage side inlet channel 2121. The inlet of the sewage channel 212 is the sewage outlet 102 of the water tank bayonet component 1 exposed when the abutment 131 is compressed by external force. The outlet of the sewage channel 212 is the sewage pipe interface 2122. The part of the sewage channel 212 between the sewage outlet 102 and the sewage pipe interface 2122 is called the sewage side inlet channel 2121. To allow the wastewater returned through the return pipe (not shown in the diagram) to reach a more central position in the water tank, a wastewater pipe (not shown in the diagram) can be inserted at the wastewater pipe interface 2122. This allows the wastewater returned to the water tank to come into more thorough contact with the pressure regulating filter device 3, be filtered into clean water, and then be sent out of the water tank again. The wastewater outlet 102, the wastewater side inlet channel 2121, the wastewater pipe interface 2122, and the wastewater pipe (not shown in the diagram) together form the entire wastewater channel 212. The elastic abutment component 13 includes an abutment member 131 and a spring 132. When the abutment member 131 is pressed by an external force, the abutment member 131 compresses the spring 132, thereby opening the wastewater channel 212.

[0105] Figure 5 The exploded view of the bayonet section shows the specific structure of the bayonet section 21. Figure 6 This diagram illustrates the automatic internal pressure adjustment of an integrated circulating filter water tank in one of its operating positions. Figure 7 This diagram illustrates the automatic internal pressure adjustment in another usage configuration of the integrated circulating filter water tank. Figure 6 , Figure 7 This illustrates the principle by which the pressure regulating filter device 3 adjusts the air pressure inside the integrated circulating filter water tank.

[0106] Figure 8 This is a 3D view of a pressure regulating filter device. Figure 9 This is a 3D view of the filter components. Figure 10 This is an exploded view of a pressure regulating filter device. Figures 8 to 10 The specific structure of the pressure regulating filter device 3 is shown.

[0107] As a further improved implementation method, such as Figures 8 to 10 As shown, combined with Figure 1 , Figure 2 , Figure 4 Let's take a look. The pressure regulating and filtering integrated device 3 is slidably engaged in the water tank body kit 2. It includes a filter assembly 30, one end of which abuts against the bottom wall of the snap-fit ​​portion 21 of the water tank body kit 2 (not shown in the figure) and the other end which leaves a gap with the water tank cover 4. It also includes a pressure regulating assembly 31, which is disposed in the filter assembly 30 and has the function of regulating the pressure in the water tank. The frame of the filter assembly 30 (not shown in the figure) and the pressure regulating assembly 31 are detachably connected. The different names used here are only to better reflect the functions of each part. Any modifications and adjustments to the technical solutions described in the preceding and following text are within the protection scope of this application. The filter assembly 30 has a long box-shaped frame with solid front and rear end walls. The front end face, which abuts against the bottom wall of the snap-fit ​​portion 21 of the water tank body assembly 2, has a water outlet 301 and an air vent 302. The water outlet 301 connects to the aforementioned clean water inlet 101 to form a clean water channel 211. The water outlet 301 is covered by a filter screen 304 within the inner cavity of the filter assembly 30, ensuring that the filtered "secondary clean water" can be discharged from the clean water inlet. The air vent 302 connects to the aforementioned air vent 103 to form an air vent channel 213. A handle (not shown in the figure) is provided on the lower part of the other end wall opposite to this one, facilitating the sliding removal of the entire pressure-regulating filter device 3 from the water tank body assembly 2. The integrated circulating water tank equipped with this pressure-regulating filter device is also very convenient to maintain. Because the filter assembly of this pressure regulating filter device is essentially formed by the front wall, rear wall, and pressure regulating mechanism of the filter assembly's frame. The tanks are fixedly connected together; the filter assembly and the pressure regulating tank are a single unit. The internal structure of the integrated circulating water tank is... The frame has ribs for sliding engagement with the filter assembly, and guides on both sides for sliding engagement with the ribs. The lower rear wall of the frame is provided with a wing to facilitate sliding the entire pressure regulating filter device out of the integrated circulating water tank. The removable handle allows users to easily clean the filter assembly by simply grasping the handle and pulling it outwards. After removing the pressure regulating filter device, the filter assembly can then be cleaned. .

[0108] As a further improved implementation method, as needed, such as Figures 8 to 11 As shown, the top of the long box-shaped frame is open, and the top of the long box-shaped frame has a groove (not shown in the figure) for the elastically engaging sealing member 35. The pressure regulating filter device 3 achieves a detachable and sealed connection with the top wall of the water tank body assembly 2 through the sealing ring 35. The other two side walls and bottom wall of the long box-shaped frame, excluding the two end walls, have numerous perforations (not shown in the figure), such as... Figure 10As shown, the outer walls of the side and bottom sides of the long box-shaped frame are equipped with filter screens 304 covering the hollow areas. Wastewater entering the water tank cavity through the wastewater channel 212 is filtered by the filter screens 304 and then enters the pressure regulating filter device 3, becoming "secondary clean water". It is then sent out of the water tank cavity through the water outlet 301 of the pressure regulating filter device 3 and the clean water channel 211. Each side wall of the frame of the filter assembly 30 is provided with a guide wing 303. The guide wing 303 slidably abuts against the snap-fit ​​rib of the water tank body kit 2. One end of the guide wing 303 extends along the depth direction of the frame of the filter assembly 30 to the rear end face of the frame of the filter assembly 30 that is not provided with the water outlet 301 and the vent 302. The other end of the guide wing 303 extends along the depth direction of the frame of the filter assembly 30 to the middle of the depth direction of the frame.

[0109] As a further improved implementation method, as needed, such as Figure 4 , Figures 8 to 10As shown, the pressure regulating component 31 and the filter component 30 are integrally formed. The pressure regulating component 31 is an "I"-shaped structure connecting the front end face (not shown in the figure) of the frame, which is provided with a water outlet 301 and an exhaust port 302, and the rear end face (not shown in the figure) of the frame, which is not provided with a water outlet 301 and an exhaust port 302. The upper surface of the "I"-shaped structure facing the water tank body kit 2 is provided with a pressure regulating groove (not shown in the figure) for accommodating the pressure regulating device. The root of the pressure regulating groove connecting the front end face and the rear end face of the "I"-shaped structure is provided with multiple pre-pressure regulating notches 318. The two walls of the pressure regulating groove extend with multiple snap-fit ​​ribs (not shown in the figure) slightly away from the pre-pressure regulating notches 318. A sealing member 35 that can be removed upwards is snapped through the snap-fit ​​interface. The sealing member 35 is parallel to the pressure regulating groove and opens from the top of the pressure regulating groove to close the pressure regulating groove. Near the two ends in the length direction of the pressure regulating groove. Two locking interfaces 316 extend upward from the bottom of the pressure regulating groove. The pressure regulating device can be a plurality of pressure regulating balls 33 located between the two locking interfaces 316 in the pressure regulating groove. There are at least two pressure regulating balls 33. The sealing member 35 has a right pressure regulating ball sealing member 355 and a left pressure regulating ball sealing member 356 at both ends that match the two ends of the pressure regulating groove. The right pressure regulating ball sealing member 355 has a right pressure regulating port 3553 at the end opposite to the pressure regulating ball 33, which is connected to the nearest pre-pressure regulating notch 318. The left pressure regulating ball sealing member 356 has a left pressure regulating port 3563 at the end opposite to the pressure regulating ball 33, which is connected to the nearest pre-pressure regulating notch 318. Under the action of gravity, the pressure regulating ball 33 can be used to block the right pressure regulating port 3553 and the left pressure regulating port 3563, thereby blocking the pre-pressure regulating notch 318, and is restricted to moving only in the pressure regulating groove between the right pressure regulating ball sealing member 355 and the left pressure regulating ball sealing member 356. The pressure regulating ball 33, the right pressure regulating ball sealing component 355, the left pressure regulating ball sealing component 356, and the pressure regulating groove together form a complete pressure regulating control assembly (not shown in the figure) with two sets of mutually independent pressure regulating control switches (not shown in the figure).

[0110] As a further improved implementation method, as needed, such as Figures 8 to 10As shown, a pressure regulating downstream channel 317 extending downwards from the top of the pressure regulating tank is provided close to one side wall in the middle of the pressure regulating tank. In the height direction of the pressure regulating filter device 3, when the pressure regulating channel extends to the bottom wall near the frame of the filter assembly 30, it turns 90 degrees towards the front end face where the water outlet 301 and the vent 302 are provided, and continues to extend towards the front end face and connects to the vent 302 on the front end face. The pressure regulating downstream channel 317 has a downwardly recessed vent valve mounting step 3171 at the beginning of the top of the pressure regulating tank. The center of the vent valve mounting step has a pressure regulating downstream channel inlet 3172. In the passage of the pressure regulating downstream channel 317, a tubular component that connects the pressure regulating downstream channel inlet 3172 and the vent 302, has a 90-degree turn, and surrounds and encloses the entire pressure regulating downstream channel 317 is called the pressure regulating downstream channel component 3173. The gap formed by the exhaust valve mounting step 3171 at the beginning of the pressure regulating channel 317 at the top of the pressure regulating groove and the pressure regulating groove is exactly connected between the pressure regulating groove and the pressure regulating channel 317.

[0111] like Figures 6 to 10 As shown, the pressure to be released in the water tank first enters the pressure regulating filter device 3 through the filter screens 304 set on both sides and the bottom of the filter assembly 30 frame, and then continues to enter the pressure regulating groove through multiple pressure regulating notches 318. One of the two pressure regulating balls 33 blocks the pressure regulating port (3553, 3563) of the corresponding pressure regulating ball sealing component (355, 356), while the other pressure regulating ball 33 opens the pre-pressure regulating port of the corresponding pressure regulating ball sealing component. After the pressure to be released passes the pressure regulating ball 33 corresponding to the opened pressure regulating port, it continues to enter the pressure regulating downstream channel inlet 3172 along the notch on the side wall of the pressure regulating groove, and then along the pressure regulating channel 317 all the way to the exhaust port 302, and then is released out of the water tank through the exhaust port 103 of the water tank retainer assembly 1. The pressure regulating notches 318, the pressure regulating groove, and the pressure regulating downstream channel together form a complete pressure regulating channel.

[0112] As a further improved implementation method, such as Figure 4 , Figure 8 , Figure 10 As shown, a one-way valve 34 can be further installed at the exhaust valve mounting step 3171. Specifically, the one-way valve 34 can be as follows: Figure 4 , Figure 10 The exhaust duckbill valve shown utilizes the one-way conduction characteristic of the one-way valve 34 to effectively prevent external pressure from flowing back into the pressure regulating tank through the pressure regulating channel 317.

[0113] As a further improved implementation method, such as Figure 6 , Figure 7As shown, during use, the water tank body assembly 2 is in motion and is generally not in a horizontal state for extended periods. When the two pressure regulating balls 33 of the pressure regulating filter device 3 are not on the same horizontal line, one of the pressure balls 33 is in a closed state of the pressure regulating port (3553, 3563) of the corresponding pressure regulating ball sealing component (355, 356). This will inevitably cause a pre-pressure regulating port 318 to connect to the water tank cavity through the pressure regulating channel 317, thus releasing the pressure inside the cavity and balancing the pressure inside and outside the water tank, effectively reducing the negative impact caused by the pressure imbalance inside the water tank. Even when the circulating cleaning container is in a horizontal state, the two pressure regulating balls 33 are on the same horizontal line. One of the pressure regulating balls 33 can be pushed open by the liquid inside the cavity under the action of inertia. This will inevitably cause a pre-pressure regulating port 318 to connect to the cavity through the pressure regulating channel 317, thus releasing the pressure inside the cavity and balancing the pressure inside and outside the circulating cleaning container, effectively reducing the negative impact caused by the pressure imbalance inside the circulating cleaning container.

[0114] Specifically, such as Figure 6 , Figure 7 , Figure 8 As shown, since the pressure regulating ball 33 can move freely within the pressure regulating groove, when the two pressure regulating balls 33 are on the same horizontal line and the pressure regulating groove is parallel to the horizontal plane, theoretically, both pressure regulating balls 33 could be in a state where the pressure regulating ports (3553, 3563) of the corresponding pressure regulating ball sealing components (355, 356) are closed, or in a state where neither of the corresponding pressure regulating ball sealing components (355, 356) is closed, or in a state where one is closed and the other is open. Since the water tank may only experience a pressure increase during use, and the water tank is in motion during use, it is impossible for both pressure regulating balls 33 to remain in a horizontal state for an extended period of time. Therefore, only one of the two pressure regulating balls 33 will be in a state where the pressure regulating ports (3553, 3563) of the corresponding pressure regulating ball sealing components (355, 356) are closed, while the other is in a state where neither of the corresponding pressure regulating ball sealing components (355, 356) is closed. This ensures that at least one pre-pressure regulating port 318 is connected to the outside of the water tank through the pressure regulating channel 317 and the vent 103 during use, thereby achieving a pressure balance between the inside and outside of the water tank.

[0115] As a further improved implementation method, such as Figures 6 to 8 , Figure 10As shown, in order to better ensure pressure balance when two or more pressure regulating balls 33 are on the same horizontal plane, no obstructions are set on the entire channel of the pressure regulating groove to prevent the pressure regulating balls 33 from rolling back and forth. When two or more pressure regulating balls 33 are on the same horizontal plane, even if the pressure regulating balls 33 prevent the pre-pressure regulating port 318 from being open, one of the pressure regulating balls 33 can be pushed open by the liquid in the water tank under the action of inertia. It will be easier for the pressure regulating ball 33 to leave the closed position of the pre-pressure regulating port 318. This will inevitably make one of the pre-pressure regulating ports 318 connect to the water tank through the pressure regulating channel 317, so that the pressure in the water tank can be released, thereby balancing the pressure inside and outside the water tank. When two or more pressure regulating balls 33 are not on the same horizontal plane, when two or more pressure regulating balls 33 are superimposed on each other, when the pressure on the pre-pressure regulating port 318 is greater than the component of the total weight of the two or more pressure regulating balls 33 in the direction of the inclined plane of the pressure regulating groove, the pressure can break through the two or more superimposed pressure regulating ball groups. This will inevitably cause one of the pre-pressure regulating ports 318 to connect to the water tank through the pressure regulating channel 317, so that the pressure inside the water tank can be released, thereby balancing the pressure inside and outside the water tank.

[0116] Users in different regions often experience variations in the water tank's ability to regulate the pressure difference between the inside and outside of the tank due to differences in climate conditions. To allow users to easily adjust this pressure difference for different application scenarios, different numbers of pressure regulating balls 33 can be installed in the pressure regulating channel. As described in the pressure regulating principle of the aforementioned pressure regulating filter device 3, the more pressure regulating balls 33 installed in the pressure regulating channel, the greater the pressure that the pre-pressure regulating port 318 will exert when opening the pressure regulating ball group. This allows users to choose the number of pressure regulating balls 33 to be placed in the pressure regulating channel, thus enabling them to adjust the water tank's internal and external pressure themselves.

[0117] As a further improved implementation method, as needed, such as Figure 11As shown, the sealing member 35 can effectively reduce the noise generated by the impact of the pressure regulating ball 33 during movement. The sealing member 35 is made of elastic materials such as silicone. The sealing member 35 is parallel to the pressure regulating groove and opens from the top of the pressure regulating groove to close the pressure regulating groove. The sealing member 35 has a right pressure regulating ball sealing member 355 and a left pressure regulating ball sealing member 356 at both ends that match the pressure regulating ball 33. The right pressure regulating ball sealing member 355 has a right pressure regulating port 3553 at the end opposite to the pressure regulating ball 33, which is connected to the nearest pre-pressure regulating notch 318. The left pressure regulating ball sealing member 356 has a left pressure regulating port 3563 at the end opposite to the pressure regulating ball 33, which is connected to the nearest pre-pressure regulating notch 318. Under the action of gravity, the pressure regulating ball 33 can be used to block the right pressure regulating port 3553 and the left pressure regulating port 3563, thereby blocking the pre-pressure regulating notch 318, and is restricted to moving only in the pressure regulating groove between the right pressure regulating ball sealing member 355 and the left pressure regulating ball sealing member 356. The pressure regulating ball 33, the right pressure regulating ball sealing component 355, the left pressure regulating ball sealing component 356, and the pressure regulating groove together form a complete pressure regulating control assembly (not shown in the figure) with two sets of independent pressure regulating control switches (not shown in the figure). The right pressure regulating ball sealing component 355 and the left pressure regulating ball sealing component 356 adopt a horn-shaped structure, which can achieve better switching effect.

[0118] As a further improved implementation method, such as Figure 10 , Figure 11 As shown, at both ends of the pressure regulating groove, there are also snap-fit ​​interfaces for snap-fitting the sealing component 35, namely the right snap-fitting component 3552 and the left snap-fitting component 3562. The right snap-fitting component 3552 is block-shaped and is located at the right end of the right sealing bowl-shaped component 3551. The right pressure regulating port 3553 passes through the right snap-fitting component 3552 and the right sealing bowl-shaped component 3551. The left snap-fitting component 3562 is block-shaped and is located at the right end of the left sealing bowl-shaped component 3561. The left pressure regulating port 3563 passes through the left snap-fitting component 3562 and the left sealing bowl-shaped component 3561. The right pressure regulating port 3553 and the left pressure regulating port 3563 are respectively connected to the corresponding pre-pressure regulating notch 318.

[0119] When the water tank needs changing, or when the pressure regulating filter 3 inside the water tank needs deep cleaning, use external force to separate the water tank from the cleaner body, such as... Figure 1 , Figure 2 As shown, open the flip cover of the water tank cap assembly 4, then pour out the liquid in the water tank and refill with new liquid. Alternatively, remove the entire water tank cap assembly 4, and further slide the handle on the pressure regulating filter device 3 outward to remove the pressure regulating filter device 3 for deep cleaning before reinstalling it. Finally, use external force to close the water tank cap assembly 4 and close the water tank body assembly 2 to complete this replacement of cleaning fluid or deep cleaning of the pressure regulating filter device 3.

[0120] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A pressure-regulating filter device, installed inside the integrated circulating water tank of a cleaner, characterized in that, include: A filter assembly, including a frame with an opening on the top surface; The pressure regulating tank runs through the front and rear walls of the frame, connecting them along the longitudinal direction of the water tank. The pressure regulating assembly includes multiple pressure regulating balls disposed in the pressure regulating groove, each of which can move at any position along the longitudinal direction of the pressure regulating groove; The integrated circulating water tank is equipped with a water tank slot, which allows the cleaner's water system to circulate.

2. The pressure regulating filter device as described in claim 1, characterized in that, At least two pressure regulating balls are installed in the pressure regulating tank.

3. The pressure regulating filter device as described in claim 1, characterized in that, The top surface of the frame is detachably connected to the top wall of the integrated circulating water tank.

4. The pressure regulating filter device as described in claim 1, characterized in that, When two or more voltage regulators are not on the same horizontal plane, the two or more voltage regulators will accumulate and overlap each other.

5. The pressure regulating filter device as described in claim 1, characterized in that, The water tank opening is equipped with a clean water inlet, a wastewater inlet, and a vent. Preferably, the front and rear walls of the frame are solid walls. The front wall abuts against the water tank slot and is provided with a water outlet that connects to the clean water outlet and an exhaust outlet that connects to the exhaust outlet. The lower part of the rear wall is provided with a handle that makes it easy to slide the entire pressure regulating filter device out of the integrated circulating water tank. Preferably, the pressure regulating tank has pre-pressure regulating notches at both ends that can be blocked by pressure regulating balls, connecting to the cavity of the integrated circulating water tank, and a pressure regulating rear section channel connected to the exhaust port is provided in the middle of the pressure regulating tank. Preferably, a pressure regulating rear section channel is provided in the middle of the pressure regulating groove, close to one side wall, extending downward from the top of the pressure regulating groove. When the pressure regulating rear section channel extends to near the bottom wall of the frame, it turns 90 degrees towards the front end face of the frame and continues to extend towards the front end face until it connects to the exhaust port. Preferably, a one-way valve is provided at the connection between the pressure regulating channel and the pressure regulating tank; Preferably, the pressure regulating downstream channel is provided with a one-way valve installation step at the beginning of the top of the pressure regulating groove. The one-way valve installation step forms a gap between the pressure regulating downstream channel and the pressure regulating groove. The gap is just right for installing the one-way valve and connecting the pressure regulating groove and the pressure regulating downstream channel. Preferably, the one-way valve is a duckbill valve made of silicone.

6. The pressure regulating filter device according to any one of claims 1 to 5, characterized in that, Users can adjust the internal and external pressure difference threshold of the integrated circulating water tank by setting different numbers of pressure regulating balls in the pressure regulating tank.

7. The pressure regulating filter device as described in claim 1, characterized in that, The filter assembly also includes filter screens disposed on the two outer sides and the bottom surface of the frame; Preferably, the frame is a long box shape, with openwork on both sides and the bottom, and the filter screen is set in the openwork of the frame.

8. The pressure regulating filter device as described in claim 5, characterized in that, The pressure regulating assembly also includes a sealing member that fills the gap between the top opening of the skeleton and the top wall; Preferably, the sealing member also closes the outer edge of the top opening of the pressure regulating groove; Preferably, the frame of the pressure regulating component and the filter component are integrally formed; Preferably, the pressure regulating component is an "I" shaped structure. The pressure regulating component connecting frame is provided with a front face with a water outlet and an air vent and a rear face without a water outlet and an air vent. The upper surface of the "I" shaped structure facing the water tank body kit is provided with a pressure regulating groove for accommodating the pressure regulating device. The root of the pressure regulating groove connecting the front and rear faces of the "I" shaped structure is provided with multiple pre-pressure regulating notches. The two walls of the pressure regulating groove extend from the pre-pressure regulating notches with multiple snap-fit ​​ribs. Preferably, the sealing member is parallel to the pressure regulating groove and closes the pressure regulating groove from the top. Near the two ends of the pressure regulating groove, there are two snap-fit ​​interfaces extending upward from the bottom of the pressure regulating groove. The sealing member, which can be removed upward, is snapped into the snap-fit ​​interfaces. At least two pressure regulating balls are provided in the pressure regulating groove between the two snap-fit ​​interfaces. Preferably, the sealing member has a right pressure regulating ball sealing member and a left pressure regulating ball sealing member at both ends that match the two ends of the pressure regulating groove. The right pressure regulating ball sealing member has a right pressure regulating port at the end opposite to the pressure regulating ball that is connected to the nearest pre-pressure regulating gap. The left pressure regulating ball sealing member has a left pressure regulating port at the end opposite to the pressure regulating ball that is connected to the nearest pre-pressure regulating gap. Under the action of gravity, the pressure regulating ball can be used to block the right pressure regulating port and the left pressure regulating port, thereby blocking the pre-pressure regulating gap, and is restricted to moving only in the pressure regulating groove between the right pressure regulating ball sealing member and the left pressure regulating ball sealing member. The pressure regulating ball, the right pressure regulating ball sealing component, the left pressure regulating ball sealing component, and the pressure regulating groove together form a complete pressure regulating control component with two sets of independent pressure regulating control switches.

9. A circulating integrated water tank, installed in a cleaner, characterized in that, include: The water tank body kit is cylindrical, with an open large end and a closed, hollow small end; The water tank bayonet is installed on the small end face of the water tank body assembly. The water tank cap fits over the large opening of the water tank body assembly. The pressure regulating filter device as described in any one of claims 1-8 is slidably engaged within the water tank body assembly; Among them, the pressure regulating filter device is pushed into the inside of the water tank body assembly along the slot provided on the inner wall of the water tank body assembly, thereby achieving mutual fixation between the two. Preferred water tank body kit: The water tank body is cylindrical, open at the large end and closed at the small end, and has a cavity. The bayonet section seals off the cavity at the small end of the water tank body; Preferably, the gate is provided with a clean water channel connecting to the clean water inlet, a sewage channel connecting to the sewage inlet, and an exhaust channel connecting to the exhaust outlet; Preferably, the water tank body and the bayonet part are integrally formed, the side wall of the water tank body has the same wall thickness as the end wall of the bayonet part, and the bayonet part has a multi-layer wall thickness structure in the depth direction of the water tank body. Preferably, the multi-layer wall thickness structure includes: The first step end face abuts against one side end face of the bayonet plate of the water tank bayonet; The second step end face abuts against one side end face of the bayonet sealing gasket of the water tank bayonet; The third step end face, the sewage channel enclosure wall that encloses the sewage channel, is parallel to the second step end face; The fourth step end face abuts against the end face of the pressure regulating filter device that points towards the water tank bayonet.

10. The integrated circulating water tank as described in claim 9, characterized in that, The bottom of the cylindrical body where the water tank body meets the cleaner body is flat. There are two abutting surfaces along the waist that slopes upward from the flat bottom. The abutting surfaces of the water tank body, the flat bottom, and the sloping waist that connects the two together abut against the cleaner body.

11. The integrated circulating water tank as described in claim 9, characterized in that, The inner side wall of the water tank body is provided with two ribs parallel to the axis of the water tank body for sliding and engaging the pressure regulating filter device. One end of the rib extends along the depth direction of the water tank body to the large end opening of the water tank body, and the other end of the rib extends along the depth direction of the water tank body to the middle of the water tank body. Preferably, the frame is provided with guide wings on both sides that can slide and engage with the ribs. One end of the guide wing extends along the depth direction of the filter assembly frame to the rear end face of the filter assembly frame where no water outlet and exhaust port are provided, and the other end of the guide wing extends along the depth direction of the filter assembly frame to the middle of the frame depth direction.

12. The integrated circulating water tank as described in claim 9, characterized in that, The end face of the sewage channel at the gate is provided with abutment. The end of the abutment facing the outside of the water tank body is chamfered, and the other end is provided with a double-layer connecting ring wall that does not conduct outwards. A spring is engaged in the hollow part of the double-layer connecting ring wall. Preferably, the end face of the sewage channel at the bayonet is also provided with a sewage channel enclosure wall that abuts against the outer ring wall of the abutment. The sewage channel enclosure wall is provided with a ring wall corresponding to the inner ring wall of the abutment at the third step surface. The other end of the spring is engaged with the ring wall. The abutment clamps and engages a spring to form a complete elastic abutment assembly. Preferably, the outer ring wall of the abutment, the sewage channel enclosure wall, and the central solid part of the bayonet portion together with the inner wall corresponding to the sewage channel enclose the sewage side inlet channel. The inlet of the sewage channel is the sewage outlet of the bayonet portion that is exposed when the abutment is compressed by external force, and the outlet of the sewage channel is the sewage pipe interface. The part of the sewage channel between the sewage outlet and the sewage pipe interface is the sewage side inlet channel. Preferably, a sewage pipe is inserted into the sewage pipe interface; Preferably, the sewage outlet, the sewage side inlet channel, the sewage pipe interface, and the sewage pipe together form the entire sewage channel; when the abutment is pressed by an external force, the abutment compresses the spring accordingly, thereby opening the sewage channel.

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