A pressure relief water tank arrangement

Abstract

The present application is suitable for the field of cleaning technology. The present application discloses a pressure relief water tank device, which is suitable for a cleaning tool and comprises a water tank body provided with a first cavity. The water tank body is provided with a water inlet and outlet mechanism for allowing water to enter or discharge the first cavity. The water tank body is further provided with a pressure relief mechanism for communicating the inside and outside of the first cavity. The pressure relief mechanism comprises a second cavity and a third cavity which are independently arranged from the first cavity. A filter screen is arranged between the second cavity and the first cavity. An air passing component is arranged between the third cavity and the second cavity. The third cavity is in communication with an air outlet nozzle which communicates with the outside. Since the air outlet nozzle and the first cavity are communicated through the pressure relief mechanism with the second cavity and the third cavity, liquid can be prevented from entering the air exhaust pipeline, and air discharge is not affected. The pressure rise phenomenon generated in the water tank during the circulation of the liquid in use can be effectively released.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202310726241.3 entitled "A pressure relief water tank device suitable for cleaning tools", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning technology, and more particularly to a pressure relief water tank device suitable for cleaning tools. Background Technology

[0003] Cleaners typically require continuous scrubbing of surfaces to achieve high cleaning efficiency. However, when using scrubbing rollers, which are usually made of sponge, the wastewater is collected after squeezing the rollers, and the squeezed-out air is also collected, causing an increase in pressure within the collection chamber. Effectively releasing this pressure becomes a problem that needs to be solved. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a pressure relief water tank device suitable for cleaning tools, which can effectively release water tank pressure.

[0005] To solve the above-mentioned technical problems, the present invention provides a pressure relief water tank device, suitable for cleaning tools, comprising:

[0006] The water tank body has a first cavity enclosed by its inner surface, and a groove is provided on the outer surface of the water tank body.

[0007] The water inlet / outlet mechanism is snapped into one end opening of the water tank body to allow water to enter / exit the first cavity. The water inlet / outlet mechanism includes a bottom shell with a vent hole.

[0008] The pressure relief mechanism includes a pressure relief mechanism cover that is sealed on the groove, a second cavity enclosed by the groove and the pressure relief mechanism cover, a first cavity that connects to the second cavity, and the side of the second cavity opposite to the groove that connects to the outside of the water tank.

[0009] Water circulates and is filtered within the first chamber, while the second chamber is at least partially above the liquid surface.

[0010] Furthermore, the pressure relief mechanism also includes:

[0011] The pressure relief mechanism connecting seat is located on the outer surface of the water tank body opposite to the groove. It is independent of the first cavity and connected to the second cavity, and is also connected to an exhaust port that connects to the outside of the water tank.

[0012] Furthermore, the pressure relief mechanism is maintained by disassembling the pressure relief mechanism cover and the second chamber.

[0013] In other words, the pressure relief mechanism and / or vent hole release pressure to the outside of the water tank.

[0014] Furthermore, the second cavity is also provided with a third cavity that is not directly connected to the first cavity inside the water tank body. The second cavity is connected to the third cavity, and the pressure relief mechanism connecting seat is connected to the third cavity. The pressure relief mechanism connecting seat is provided with an exhaust port connected to the outside of the water tank body. The pressure relief mechanism also includes the third cavity. The third cavity can be maintained after the second cavity is disassembled.

[0015] Furthermore, the pressure relief mechanism also includes a base plate that can be removed from the water tank body, two air passage components fitted onto the base plate, and two filter assemblies disposed at both ends of the base plate. The filter assemblies connect the second cavity and the first cavity, and the air passage components connect the third cavity and the second cavity.

[0016] Furthermore,

[0017] The two filter components are the starting points of the air pressure release path from the first chamber.

[0018] The two filter components also serve as the starting point for the second chamber to receive the released air pressure.

[0019] The two venting components are the endpoints of the passageways for releasing external pressure from the second chamber.

[0020] The two gas-passing components also serve as the starting point for the passageway for receiving and releasing gas pressure in the third chamber.

[0021] The exhaust nozzle is the end point of the passage for the third chamber to release air pressure to the outside.

[0022] Furthermore, each end of the substrate is provided with a pressure relief port, and the pressure relief port extends upward or downward with a flange, and the gas passage component is sleeved on the flange of the pressure relief port.

[0023] Furthermore, a sealing ring is fitted onto the downward-extending wall of the pressure relief mechanism cover, and the pressure relief mechanism cover, the sealing ring, and the base plate form a second cavity.

[0024] Furthermore, a first pressure relief connector and a second pressure relief connector with a 90-degree bend are respectively provided on the back of the flange. The two are connected by a tee connector through a pressure relief hose. The vertical direct port of the tee connector is connected to the exhaust nozzle. The two air passage components, the first pressure relief connector, the second pressure relief connector, the tee connector, the three-section pressure relief hose, and the exhaust nozzle form a third cavity.

[0025] Furthermore, the exhaust nozzle includes a pin with a sealing component at one end and a spring sleeved on the other end of the pin, as well as a closing portion that cooperates with the sealing component. The sealing component includes a fixing sleeve that engages and limits the pin. The fixing sleeve has a closing portion, and a sealing ring is sleeved on the top contact end face of the pin slightly upward. A clearance gap is provided between the closing portion and the sealing ring.

[0026] Furthermore, the sealing ring has extensions on both sides in the vertical direction of the diameter and a protrusion in the diameter direction. The protrusion has a sealing mating surface, which is an inclined surface.

[0027] Furthermore, an anti-loosening component is provided to ensure a tight fit after the water tank is installed. This anti-loosening component is located below the vent.

[0028] Furthermore, the anti-loosening component protrudes above the surface of the water tank body, and the anti-loosening component includes a trumpet shape.

[0029] Furthermore, the water tank body is provided with a fixed mounting buckle mechanism, which includes a latch that extends and retracts along the length of the water tank body, an elastic component that extends the latch, and a movable operating component that retracts the latch. The water tank body is provided with an installation slope at the end opposite to the buckle mechanism.

[0030] Furthermore, the water inlet and outlet mechanism includes a clean water output component, which includes a water outlet pin with a through hole and a water outlet interface end piece sleeved on the water outlet pin. A water outlet pressure spring is sleeved on the water outlet pin to make the water outlet pin tend to extend. The water outlet pin includes an ejector part that cooperates with the clean water outlet on the water outlet interface end piece and a limiting part that restricts the movement position. A sealing ring is provided between the ejector part and the clean water outlet. When the water inlet and outlet pin is pushed and moved, the through hole connects to the clean water outlet.

[0031] Furthermore, the water outlet connector is equipped with a water outlet cavity that communicates with the water tank. The water outlet cavity forms a water outlet channel with the inlet and outlet through a through hole. The water outlet connector is an integral structure.

[0032] Furthermore, the inlet and outlet water mechanism includes a sewage inlet component, which includes a return water pin with a through hole and a return water interface end piece sleeved on the return water pin. A return water pressure spring is sleeved on the return water pin to make the return water pin tend to extend. The return water pin includes an ejector part that cooperates with the return water inlet on the return water interface end piece and a limiting part that restricts the movement position. A sealing ring is provided between the ejector part and the return water inlet. When the inlet and outlet water pins are pushed and moved, the through hole connects to the return water inlet.

[0033] Furthermore, the return water interface connector is equipped with a return water cavity that communicates with the water tank. The return water cavity forms a return water channel with the return water inlet through a through hole. The return water interface connector is an integral structure.

[0034] Furthermore, the return water cavity and the outlet water cavity are set up independently, and the outlet water channel and the return water channel are set up independently.

[0035] Furthermore, the water outlet pin and the water return pin are equipped with fixing grooves for fixing the sealing ring.

[0036] This invention relates to a pressure relief water tank device for cleaning tools, comprising a water tank body with a first cavity. The water tank body has an inlet / outlet mechanism for allowing water to enter or exit the first cavity. The water tank body also has a pressure relief mechanism connecting the inside and outside of the first cavity. This pressure relief mechanism includes a second cavity and a third cavity independently of the first cavity. A filter screen is provided between the second cavity and the first cavity. An air passage component is provided between the third cavity and the second cavity. The third cavity is connected to an exhaust port that communicates with the outside. Because the exhaust port is connected to the first cavity via the pressure relief mechanism of the second and third cavities, liquid entry into the exhaust pipe is prevented, thus not affecting air discharge. This effectively releases the pressure rise that occurs within the water tank during the recycling of liquid during use. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0039] Figure 2 This is a schematic diagram of another perspective of an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0040] Figure 3 This is an exploded schematic diagram of the upper body of an embodiment of a pressure relief water tank device.

[0041] Figure 4 This is a detailed exploded view of the structure of the pressure relief water tank device embodiment after the main body is concealed.

[0042] Figure 5 A schematic diagram of the structure projected along the horizontal and vertical directions.

[0043] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction.

[0044] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0045] Figure 8 for Figure 7 Enlarged schematic diagram of the C-section structure.

[0046] Figure 9 for Figure 6Enlarged schematic diagram of the structure of section D in the middle.

[0047] Figure 10 for Figure 9 Enlarged schematic diagram of the F-section structure.

[0048] Figure 11 This is a schematic diagram of one usage state of a pressure relief tank device when it contains liquid.

[0049] Figure 12 This is a schematic diagram of another usage state of the pressure relief water tank device when it is filled with liquid.

[0050] Figure 13 Center plan view of another embodiment of a pressure relief tank device suitable for cleaning tools.

[0051] Figure label:

[0052] Pressure relief water tank device 1, first chamber X, second chamber Y, third chamber Z;

[0053] Water inlet / outlet mechanism 10;

[0054] Interface termination 101, water outlet interface termination 101, water return interface termination 101

[0055] Clean water output component 102, water outlet pin 1021, water outlet sealing ring 1022, water outlet limiting part 1023, water outlet channel 1024, water outlet pressure spring 1025;

[0056] Wastewater inlet assembly 103, return water pin 1031, return water sealing ring 1032, return water limiting part 1023, return water channel 1034, return water pressure spring 1035;

[0057] Water inlet / outlet mechanism bottom shell 104, vent 1041, filter assembly connection port 1042, water suction pipe interface 1043, sewage return port 1045, guide rib 1046.

[0058] Sealing gasket 105

[0059] 106mm suction pipe;

[0060] Water tank body 20;

[0061] Card Connector 201

[0062] Card slot 202,

[0063] Exhaust nozzle 203, ejector pin 2031, sealing ring 2032, first extension 20321, second extension 20322, protrusion 20323, fixing sleeve 2033, sleeve cover 2034, sealing O-ring 2035, pressure relief spring 2036.

[0064] Pressure relief mechanism connecting seat 204, pressure relief mechanism connector 2041

[0065] Pressure relief mechanism 205, pressure relief mechanism cover 2051, sealing ring 2052, air passage component 2053, pressure relief port 2054, first pressure relief connector 2055, second pressure relief connector 2056, tee connector 2057, base plate 2058, filter assembly 2059.

[0066] Upper body 206,

[0067] Lower body 207;

[0068] Filter assembly 40, filter assembly connection port 401;

[0069] 60mm pressure relief hose;

[0070] Liquid level line H;

[0071] The realization of the objectives, 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

[0072] 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.

[0073] It should be understood that, in the description of the embodiments of the present invention, all directional indicating 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 the present 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 the present 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.

[0074] 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.

[0075] 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, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication 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.

[0076] 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 control circuits of the controllers, 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 control process of the software or programs involved, this 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.

[0077] 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.

[0078] 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.

[0079] like Figures 1-12 As shown, the present invention provides an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0080] The pressure relief water tank device 1 for cleaning tools includes a water tank body 20 with a first cavity X. The water tank body 20 is provided with an inlet / outlet mechanism 10 for allowing water to enter or exit the first cavity X. The water tank body 20 is also provided with a pressure relief mechanism 205 connecting the inside and outside of the first cavity X. The pressure relief mechanism 205 includes a second cavity Y and a third cavity Z that are independently set apart from the first cavity X. A filter assembly 2059 is provided between the second cavity Y and the first cavity X. An air passage component 2053 is provided between the third cavity Z and the second cavity Y. The third cavity Z is connected to an exhaust port 203 that connects to the outside.

[0081] Specifically, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 As shown, since the exhaust nozzle 203 is connected to the first cavity X, the second cavity Y and the third cavity Z by the pressure relief mechanism 205, liquid can be prevented from entering the exhaust pipe, without affecting air discharge, and the pressure generated in the pressure relief water tank device 1 when the liquid is recycled during use can be effectively released.

[0082] Specifically, such as Figure 3 , Figure 6 As shown, the water tank body 20 has a groove (not shown in the attached figure), on which a removable and maintainable pressure relief mechanism 205 is sealed and installed. The pressure relief mechanism 205 includes a base plate 2058 that can be removed from the water tank body 20, an air passage component 2053 sleeved on the base plate 2058, a filter assembly 2059 disposed on the base plate 2058, and a removable sealing cover 2051 that is attached to the groove. A sealing ring 2052 that forms a sealing connection with the groove is sleeved on the downwardly extending sealing wall of the pressure relief mechanism cover 2051. Each end of the base plate 2058 has a pressure relief port 2054, and the pressure relief port 2054 extends upward with a flange. The two air passage components 2053 are respectively... The pressure relief port 2054 is not fitted onto the flange. On the back side of the flange of the base plate 2058, a first pressure relief connector 2055 and a second pressure relief connector 2056 with 90-degree bends are respectively provided. The first pressure relief connector 2055 and the second pressure relief connector 2056 are connected by two sections of pressure relief hose 60 and a three-way connector 2057. The three-way connector 2057 itself has no direct connection to the base plate 2058. The two horizontal interfaces of the three-way connector 2057 are connected to the first pressure relief connector 2055 and the second pressure relief connector 2056 respectively through the pressure relief hose 60. One vertical port of the three-way connector 2057 is connected to the exhaust nozzle 203 through the pressure relief hose 60.

[0083] Specifically, such as Figure 3 , Figure 6As shown, the pressure relief mechanism cover 2051, sealing ring 2052, and base plate 2058 form a second cavity Y contained within the pressure relief water tank device 1. The filter assembly 2059 and the air passage component 2053 are respectively disposed at both ends of the second cavity Y along one side of the water tank body 20. The air passage component 2053 includes a cylindrical air chamber (not shown in the figure) communicating with the second cavity Y and a flat air nozzle (not shown in the figure) connected to the air chamber at the other end. The two air passage components 2053, the first pressure relief connector 2055, the second pressure relief connector 2056, the three-way connector 2057, the three-section pressure relief hose 60, and the exhaust nozzle 203 form a third cavity Z contained within the pressure relief water tank device 1.

[0084] like Figure 6 As shown, the two filter components 2059 are the starting points of the path for the first cavity X to release air pressure outward, and the two filter components 2059 are also the starting points of the path for the second cavity Y to receive released air pressure. The two air passage components 2053 are the ending points of the path for the second cavity Y to release air pressure outward, and the two air passage components 2053 are also the starting points of the path for the third cavity Z to receive released air pressure. The exhaust nozzle 203 is the ending point of the path for the third cavity Z to release air pressure to the outside.

[0085] As a further improved implementation, the air passage component 2053 is not limited to the flat-nozzle one-way valve structure described above. Other structures that can function as one-way valves and allow one-way air passage can also be used to replace the air passage component 2053. Simple modifications and substitutions made by those skilled in the art based on the foregoing and following descriptions, without requiring any creative effort, to arrive at technical solutions similar to this application are all within the protection scope of this application.

[0086] Specifically, such as Figure 2 , Figure 4 , Figure 6 , Figure 9 , Figure 10 As shown, the pressure relief water tank device 1 is equipped with an anti-loosening component that ensures a tight fit between the water tank and the cleaner after installation. The anti-loosening component protrudes above the surface of the water tank body 20, and its lower opening has a funnel shape. In this embodiment, the anti-loosening component is preferably made of an elastic material. During use, because the anti-loosening component protrudes slightly above the water tank body, it fills the gap between the water tank body and the fixed water tank structure, reducing the likelihood of loosening after installation. The anti-loosening component is preferably positioned between the installation ramp and the snap-fit ​​mechanism, and has a large contact surface with the fixed water tank structure.

[0087] Specifically, such as Figure 4 , Figure 9As shown, the anti-loosening component is a cylindrical cover 2034 disposed at the lower part of the exhaust nozzle 203.

[0088] Specifically, such as Figure 4 , Figure 9 As shown, the vent nozzle 203 includes a fixing sleeve 2033 that is fitted and limited by the ejector pin 2031. The outer wall of the fixing sleeve 2033 is provided with an annular mounting groove (not shown in the figure). A sealing O-ring 2035 is provided in the annular mounting groove. The sealing O-ring 2035 is in sealing contact with the pressure relief mechanism connecting seat 204 fitted on the fixing sleeve 2033. A flower-shaped neck-shaped constriction part (not shown in the figure) is provided at the lower end of the fixing sleeve 2033. The lower end is detachably connected to the cylindrical cover 2034 by clamping the annular protrusion (not shown in the figure) of the cylindrical cover 2034 with the flower-shaped neck-type constriction. The outer wall of the cylindrical cover 2034 smoothly transitions to the outer wall of the lower end of the fixing sleeve 2033. The lower end opening of the cylindrical cover 2034 opens downward in a trumpet shape. A sealing ring 2032 is fitted on the neck (not shown in the figure) of the foremost abutment end face (not shown in the figure) of the ejector pin 2031, slightly upward. Figure 10 As shown, the sealing ring 2032 has extensions on both sides in the vertical direction of its diameter, namely a first extension 20321 and a second extension 20322. A protrusion 20323 is provided outward in the diametrical direction. This protrusion 20323 has a sealing mating surface (not shown in the figure) that seals with the lower end of the fixed sleeve 2033 (a curved neck-shaped opening). This sealing mating surface is beveled. Because the sealing mating surface is beveled, a better sealing effect can be achieved during the sealing process. A clearance (not shown in the figure) is provided between the lower end of the fixed sleeve 2033 (a curved neck-shaped opening) and the sealing ring 2032, providing space for the elastic deformation of the protrusion 20323. This makes it easier to achieve a sealing effect during the sealing process and prevents an overly tight fit that would require significant force to release during discharge. Figure 9 As shown, the neck of the ejector pin 2031 is provided with a groove for accommodating the spring 2036 (not shown in the figure). The other end of the spring 2036 abuts against the abutting protrusion (not shown in the figure) of the pressure relief mechanism connecting seat 204. When the abutting end face of the foremost end of the ejector pin 2031 is pressed by an external force, the ejector pin 2031 further compresses the spring 2036, thereby causing the sealing mating surface on the protrusion 20323 of the sealing ring 2032 to leave the lower end of the fixed sleeve 2033, thus opening the passage of the third cavity Z to the outside.

[0089] As a further improved implementation method, such as Figure 6 , Figure 9As shown, the anti-loosening component can specifically be a cylindrical cover 2034 that is snapped onto the lower end of the fixing sleeve 2033. The lower end opening of the cylindrical cover 2034 is funnel-shaped, and the annular protrusion on the inner wall of the upper end opening of the cylindrical cover 2034 is detachably snapped onto the outer wall of the flower-shaped neck-shaped constriction at the lower end of the fixing sleeve 2033. The cylindrical cover 2034 is disposed on the exhaust nozzle 203.

[0090] Specifically, such as Figure 5 , Figure 6 As shown, the water tank body 20 is provided with a locking mechanism for fixed installation. Specifically, the locking mechanism consists of a recessed locking portion 201 on the water tank body 20, and a further recessed locking groove 202 on the locking portion 201. When the pressure relief water tank device 1 is fixed, the corresponding buckle on the cleaner can be engaged in the locking groove 202 of the locking portion 201. When the pressure relief water tank device 1 needs to be removed, the corresponding buckle can be released to remove the pressure relief water tank device 1. The end of the water tank body 20 opposite to the buckle is provided with an installation slope (not shown in the attached figure).

[0091] As a further improved embodiment, the water tank body 20 is provided with a fixedly installed latching mechanism (not shown in the figure). The latching mechanism has a latch tongue (not shown in the figure) that extends and retracts along the length direction of the water tank body, an elastic component (not shown in the figure) that extends the latch tongue, and a movable operating component (not shown in the figure) that can retract the latch tongue.

[0092] Specifically, such as Figure 2 , Figure 4 , Figure 7 , Figure 8 As shown, the water inlet / outlet mechanism 10 includes a clean water output component 102 and a wastewater inlet component 103. The clean water output component 102 includes a water outlet pin 1021 with a through hole and a water outlet interface connector 101 sleeved on the water outlet pin. A water outlet pressure spring 1025 is sleeved on the water outlet pin to keep the structure in an extended position. The water outlet pin includes an ejector part (not shown in the figure) that cooperates with the clean water outlet (not shown in the figure) on the water outlet interface connector 101 and a water outlet limiting part 1023 that restricts the movement position. A water outlet sealing ring 1022 is provided between the ejector part and the clean water outlet. When the water outlet pin 1021 is pushed and moved, the through hole communicates with the clean water outlet. The water outlet interface connector has a water outlet cavity (not shown in the figure) that communicates with the water tank. This water outlet cavity can form a water outlet channel 1024 with the clean water outlet through the through hole.

[0093] Specifically, such as Figure 2 , Figure 4 , Figure 7 , Figure 8As shown, the sewage inlet assembly 103 includes a return water pin 1031 with a through hole and a return water interface connector 101 sleeved on the return water pin. A return water pressure spring 1035 is sleeved on the return water pin 1031 to keep the outlet pin structure in an extended position. The return water pin 1031 includes an ejector portion (not shown in the figure) that cooperates with the return water inlet (not shown in the figure) on the return water interface connector 101 and a return water limiting portion 1023 that restricts its movement. A return water sealing ring 1032 is provided between the ejector portion and the return water inlet. When the outlet pin is pressed and moved, the through hole communicates with the return water inlet. The return water interface connector has a return water cavity (not shown in the figure) communicating with the water tank. This return water cavity can form a return water channel 1034 with the return water inlet through the through hole.

[0094] Specifically, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 As shown, the outlet interface connector and the return interface connector are an integral structure, which can be collectively referred to as interface connector 101. The return water cavity and the outlet water cavity are set independently. The return water pin 1031 and the outlet water pin 1021 are respectively provided with fixing grooves for fixing the return water sealing ring 1032 and the outlet water sealing ring 1022 (not shown in the figure).

[0095] As a further improved implementation, the outlet interface connector and the return interface connector are detachable and combinable separate structures. The return water cavity and the outlet water cavity are set independently. The outlet interface connector and the return water interface connector are combined together to form a complete interface connector 101. The return water pin 1031 and the outlet water pin 1021 are respectively provided with fixing grooves for fixing the return water sealing ring 1032 and the outlet water sealing ring 1022 (not shown in the figure).

[0096] Specifically, such as Figure 4 , Figure 8As shown, the clean water output component 102 and the wastewater inlet component 103 of the water inlet / outlet mechanism 10 are elastically clamped between the interface end connector 101 and the bottom shell 104 of the water inlet / outlet mechanism. One end of the outlet pressure spring 1025 abuts against the outlet pin 1021 and the other end abuts against the bottom shell 104 of the water inlet / outlet mechanism. One end of the return pressure spring 1035 abuts against the return pin 1031 and the other end abuts against the bottom shell 104 of the water inlet / outlet mechanism. The interface end connector 101 has openings at both ends. The end with the larger opening has an outwardly expanding snap-fit ​​interface edge with a certain strength and thickness (not shown in the figure). The end with the smaller opening is sleeved on the water inlet / outlet... On the inner wall of the water mechanism base shell 104, the interface end connector 101 is provided with a partition (not shown in the figure) on the side near the large opening end to block the opening. The partition is provided with a conical through hole that abuts against the water outlet pin 1021 and the water return pin 1031. A sealing gasket 105 is sandwiched between the small opening end face of the interface end connector 101 and the inner bottom wall of the water inlet and outlet mechanism base shell 104. The sealing gasket 105 is made of elastic material. After the interface end connector 101 and the water inlet and outlet mechanism base shell 104 are detachably connected by fastening screws, the elastic sealing gasket 105 can fill the gap between the two to effectively prevent leakage. The outer walls of the large and small ends of the interface connector 101 maintain two different outer diameters. The outer wall of the interface connector 101 must be provided with a step (not shown in the figure) that divides the large and small ends. The lower part of the snap-fit ​​edge of the large end of the interface connector 101 extends to the outer wall of the step and is fitted with a sealing ring 1011. The sealing ring 1011 can seal the gap between the water inlet / outlet mechanism 10 and the water tank body 20 after they are snapped together. The bottom shell 104 of the water inlet / outlet mechanism is open at one end, and the interface end connector 101 is sleeved on the open end. The other end is closed, but a through hole is provided on the closed end face to communicate with the clean water output component 102 and the sewage inlet component 103. A water suction pipe interface 1043 is provided on the closed end face of the bottom shell 104 of the water inlet / outlet mechanism, extending outward from the through hole of the clean water output component 102. A filter component connection port 1042 extends outward from the closed end face of the bottom shell 104 of the water inlet / outlet mechanism around the water suction pipe interface 1043. The inner wall of the filter component connection port 1042 is provided with threads (not shown in the figure). The inner thread is coupled and detachably connected to the outer thread (not shown in the figure) of the filter component connection port 401 at the open end of a cylindrical filter component 40. The peripheral wall and bottom wall of the filter component 40 are provided with multiple hollow structures (not shown in the figure), and its outer surface is covered with a filter screen (not shown in the figure).A suction pipe 106 is fitted onto the suction pipe interface 1043. The suction pipe 106 extends to a region close to the bottom wall of the filter assembly 40. This allows the water filtered in the filter assembly 40 within the pressure relief tank device 1 to still be drawn in by the suction pipe 106 when the water inlet / outlet mechanism 10 is facing upwards. This drawable state is maintained until the water level of the filtered water in the filter assembly 40 is lower than the lowest opening of the suction pipe 106 (not shown in the figure). In addition to the filter assembly connection port 1042, a sewage return port 1045 communicating with the sewage inlet assembly 103 is provided on the closed end face of the bottom shell 104 of the water inlet and outlet mechanism. The sewage after cleaning by the cleaner enters the first cavity X in the pressure relief water tank device 1 through the return water channel 1034 and then through the sewage return port 1045. After being filtered by the filter assembly 40, the sewage is sucked into the outlet channel 1024 through the suction pipe 106 and finally sent out to the water outlet passage (not shown in the figure) of the cleaner through the clean water output assembly 102. A vent hole 1041 is provided inside the filter assembly connection port 1042 on the closed end face of the bottom shell 104 of the water inlet and outlet mechanism. When the water inlet and outlet mechanism 10 is facing upward and the pressure relief mechanism 205 loses its pressure regulating function, the pressure relief water tank device 1 still has a pressure relief channel to slightly adjust the gas pressure inside and outside the pressure relief water tank device. When the water inlet and outlet mechanism 10 is facing downward and the water level in the filter assembly 40 is lower than the highest opening of the water suction pipe 106, water can still enter the water outlet channel through the vent hole 1041 and then be sent out to the water outlet passage of the cleaner (not shown in the figure) through the clean water output component 102. A guide rib 1046 is provided on the outer wall of the bottom shell 104 of the water inlet / outlet mechanism that mates with the water tank body 20. The guide rib 1046 helps the installed water inlet / outlet mechanism 10 to be easily inserted into the water tank body 20. Since the outer wall of the water inlet / outlet mechanism 10 that mates with the water tank body 20 has a regular symmetrical shape, the guide rib 1046 can also play a role in preventing reverse connection.

[0097] Specifically, such as Figure 2 , Figure 3 , Figure 4As shown, the pressure relief water tank device 1 includes an upper body 206 and a lower body 207. The upper body 206 and the lower body 207 are sealed together. The bottom of the lower body 207 extends upwards on a sloped surface. The top of this slope, opposite the end of the water inlet / outlet mechanism 10, has a concave locking portion 201 for easy installation and fixing. This locking portion has a concave locking groove 202. When fixing the pressure relief water tank device 1, the corresponding buckle on the cleaner can engage with the locking groove 202 of the locking portion 201. When the pressure relief water tank device 1 needs to be removed, the corresponding buckle can be released to remove it. As a further improved embodiment, the upper body 206 and the lower body 207 are sealed together by an ultrasonic welding layer (not shown in the figure).

[0098] As a further improved implementation, the upper body 206 and the lower body 207 of the water tank are sealed together by a secondary injection molding process.

[0099] As a further improved implementation, the upper body 206 and the lower body 207 of the water tank are sealed together by a direct bonding process.

[0100] Specifically, such as Figure 11 As shown, when the inlet / outlet mechanism 10 of the pressure relief tank device 1 is tilted downwards, a portion of the pressure relief mechanism 205 on the side away from the inlet / outlet mechanism 10 is above the liquid surface H. Regardless of whether the opening of the suction pipe 106 is always below the liquid surface H, the pressure relief tank device 1 still has the ability to release pressure outside the pressure relief tank device and also has the ability to continuously output clean water. When the inlet of the suction pipe 106 is below the liquid surface H, the suction pipe 106 can naturally achieve the function of "releasing water outwards". When the inlet of the suction pipe 106 is above the liquid surface H, the vent 1041 of the inlet / outlet mechanism 10 is lower than the liquid surface H and is only a very small bypass branch of the water outlet channel 1024. The bypass branch of the vent 1041 can achieve the function of "releasing water outwards" under the pressure of the liquid surface H. At the same time, due to the pressure difference between the inside and outside of the pressure relief tank device 1, the pressure relief tank device of the cleaner used in this manner has the ability to supply water to the outside and release pressure to the outside.

[0101] Specifically, such as Figure 12As shown, when the inlet / outlet mechanism 10 of the pressure relief tank device 1 is tilted upwards, a portion of the pressure relief mechanism 205 is located above the liquid surface H on the side close to the inlet / outlet mechanism 10. At this time, the opening of the suction pipe 106 is lower than the liquid surface H. Under the combined action of water pressure and air pressure, the pressure is applied directly to the vent 203 of the pressure relief tank device 1 through the pressure relief mechanism 205 and along the pressure relief pipeline. The vent 203 can be specifically a one-way valve. Due to the one-way conduction function of the one-way valve, the one-way valve is compacted and closed under the combined action of water pressure and air pressure. The vent 1041 of the water inlet / outlet mechanism 10 is higher than the liquid level H and is only a very small bypass branch of the water outlet channel 1024. The vent 1041 is open to the outside atmosphere. A circuitous structure (not shown in the attached diagram) is provided before the vent 1041 to block water flow to the bypass branch. Simply put, the bypass branch of the vent 1041, which is open to the outside atmosphere, can achieve the effect of "breathable but not water-permeable". At this time, the bypass branch of the vent 1041, which is open to the outside atmosphere, has the ability to release pressure outside the water supply device. Simultaneously, due to the pressure difference inside and outside the water supply device, and because the suction pipe 106 always has an inlet and / or suction hole below the liquid level H, the clean water output component can continuously output clean water. The water supply device of the car wash device used in this configuration has the ability to release pressure outside the water supply device and continuously output clean water. Of course, when the liquid level H is lower than the water inlet of the suction pipe 106, the pressure relief tank device 1 will also be unable to continuously output clean water. At this time, the user is reminded to add clean water to the pressure relief tank device 1 so that the cleaner can continue to be used.

[0102] like Figure 13 As shown, the present invention provides another embodiment of a pressure relief water tank device suitable for cleaning tools.

[0103] Unlike the previous embodiment, the second pressure relief connector 2056 is replaced with a T-connector, eliminating the original T-connector 2057. The horizontal ends of the first pressure relief connector 2055 and the second pressure relief connector 2056 are directly connected by the pressure relief hose 60, and the other vertical end of the second pressure relief connector 2056 is connected to the vent 203 by the pressure relief hose 60. The vent 203 is located near the rear of the pressure relief water tank device 1. This design allows the filter assembly 40 to have more space to install a filter screen and increase the filtration effect without increasing its diameter. At the same time, it allows the water suction pipe 106 to extend further, reducing the possibility of unusable residue remaining in the pressure relief water tank device 1 when the inlet / outlet mechanism 10 is tilted upwards.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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 the present invention.

Claims

1. A pressure relief water tank device, suitable for cleaning tools, characterized in that, include: The water tank body has a first cavity enclosed by its inner surface, and a groove is provided on the outer surface of the water tank body. The water inlet / outlet mechanism is snapped into one end opening of the water tank body to allow water to enter / exit the first cavity. The water inlet / outlet mechanism includes a bottom shell with a vent hole. The pressure relief mechanism includes a pressure relief mechanism cover that is sealed on the groove, the groove, the second cavity enclosed by the pressure relief mechanism cover, and a pressure relief mechanism connecting seat. The pressure relief mechanism connecting seat is connected to the outside of the water tank body. The first cavity is connected to the second cavity. The second cavity is located on the side of the water tank body opposite to the groove and is connected to the outside of the water tank body. The pressure relief mechanism connecting seat is set on the outer surface of the water tank body opposite to the groove. The pressure relief mechanism also includes a third cavity. The second cavity is also provided inside the water tank body and is not directly connected to the first cavity. The second cavity is connected to the third cavity. The pressure relief mechanism connecting seat is connected to the third cavity. The third cavity can be maintained after the second cavity is disassembled. Water circulates and is filtered within the first chamber, while the second chamber is at least partially above the liquid surface.

2. The pressure relief water tank device as described in claim 1, characterized in that, The pressure relief mechanism connecting seat is located on the outer surface of the water tank body opposite to the groove, independent of the first cavity and connected to the second cavity. The pressure relief mechanism connecting seat is provided with an exhaust port connected to the outside of the water tank body. The pressure relief mechanism is maintained by disassembling the pressure relief mechanism cover and the second chamber.

3. The pressure relief water tank device as described in claim 1, characterized in that, The pressure relief mechanism and / or vent hole release pressure to the outside of the water tank body.

4. The pressure relief water tank device as described in claim 1, characterized in that, The pressure relief mechanism connecting seat is provided with an exhaust port that connects to the outside of the water tank body. The pressure relief mechanism also includes a base plate that can be removed from the water tank body, two air passage components sleeved on the base plate, and two filter assemblies set at both ends of the base plate. The filter assemblies connect the second cavity and the first cavity, and the air passage components connect the third cavity and the second cavity.

5. The pressure relief water tank device as described in claim 4, characterized in that, Each end of the substrate is provided with a pressure relief port, and the pressure relief port extends upward or downward with a flange. The gas passage component is sleeved on the flange of the pressure relief port. A sealing ring is fitted onto the downward extending wall of the pressure relief mechanism cover, and the pressure relief mechanism cover, the sealing ring, and the base plate form a second cavity; On the back of the flange, there are two opposing pressure relief connectors with 90-degree bends: a first pressure relief connector and a second pressure relief connector. The two are connected by a pressure relief hose and a tee connector. The vertical outlet of the tee connector is connected to the exhaust nozzle. The two air passage components, the first pressure relief connector, the second pressure relief connector, the tee connector, the three-section pressure relief hose, and the exhaust nozzle form a third cavity. The two filter components are the starting point of the passage for the first chamber to release air pressure to the outside. The two filter components are also the starting point of the passage for the second chamber to receive the released air pressure. The two air passage components are the ending point of the passage for the second chamber to release air pressure to the outside. The two air passage components are also the starting point of the passage for the third chamber to receive the released air pressure. The exhaust nozzle is the ending point of the passage for the third chamber to release air pressure to the outside.

6. The pressure relief water tank device as described in claim 2, characterized in that, The exhaust nozzle includes a pin with a sealing component at one end and a spring sleeved on the other end of the pin, as well as a closing portion that cooperates with the sealing component. The sealing component includes a fixing sleeve that engages and limits the pin. The fixing sleeve has a closing portion. A sealing ring is sleeved on the top contact end face of the pin slightly upward. A clearance gap is provided between the closing portion and the sealing ring. The sealing ring has extensions on both sides in the vertical direction of the diameter and a protrusion in the diameter direction. The protrusion has a sealing mating surface, which is an inclined surface.

7. The pressure relief water tank device as described in claim 2, characterized in that, It also features an anti-loosening component that ensures a tight fit after the water tank body is installed; this anti-loosening component is located below the vent. The anti-loosening component protrudes above the surface of the water tank body and includes a trumpet-shaped component.

8. The pressure relief water tank device as described in claim 1, characterized in that, The water tank body is equipped with a fixed mounting buckle mechanism. The buckle mechanism has a latch that extends and retracts along the length of the water tank body, an elastic component that extends the latch, and a movable operating component that retracts the latch. The water tank body is provided with an installation slope at the end opposite to the buckle mechanism.

9. The pressure relief water tank device according to claim 1, characterized in that, The water inlet and outlet mechanism includes a clean water output component, which includes a water outlet pin with a through hole and a water outlet interface end piece sleeved on the water outlet pin. A water outlet pressure spring is sleeved on the water outlet pin to make the water outlet pin tend to extend. The water outlet pin includes an ejector part that cooperates with the clean water outlet on the water outlet interface end piece and a limiting part that restricts the movement position. A sealing ring is provided between the ejector part of the water outlet pin and the clean water outlet. When the water outlet pin is pushed and moved, the through hole of the water outlet pin is connected to the clean water outlet. The water outlet connector has a water outlet cavity that communicates with the water tank body. The water outlet cavity forms a water outlet channel with the clean water outlet through a through hole. The water outlet connector is an integral structure.

10. The pressure relief water tank device according to claim 9, characterized in that, The inlet and outlet mechanism includes a sewage inlet assembly, which includes a return water pin with a through hole and a return water interface end piece sleeved on the return water pin. A return water pressure spring is sleeved on the return water pin to make the return water pin tend to extend. The return water pin includes an ejector part that cooperates with the return water inlet on the return water interface end piece and a limiting part that restricts the movement position. A sealing ring is provided between the ejector part of the return water pin and the return water inlet. When the return water pin is pushed and moved, the through hole of the return water pin connects to the return water inlet. The return water interface connector is provided with a return water cavity that is connected to the water tank body. The return water cavity forms a return water channel with the return water inlet through a through hole. The return water interface connector is an integral structure. The return water cavity and the outlet water cavity are set independently, and the outlet water channel and the return water channel are set independently.

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