A pressure relief water tank device suitable for cleaning tools

Abstract

The present invention is applicable to the field of cleaning technology. The present invention discloses a pressure relief water tank device applicable to cleaning tools, comprising a water tank body provided with a first cavity, the water tank body provided with a water inlet and outlet mechanism for allowing water to enter or discharge the first cavity, the water tank body further provided with a pressure relief mechanism communicating with the inside and outside of the first cavity, the pressure relief mechanism comprising a second cavity and a third cavity independently provided with the first cavity, a filter provided between the second cavity and the first cavity, an air passing component provided between the third cavity and the second cavity, and the third cavity communicated with an exhaust nozzle communicating with the outside. Since the exhaust nozzle and the first cavity are connected through the pressure relief mechanism with the second cavity and the third cavity, liquid can be prevented from entering the exhaust pipe, without affecting air discharge. The pressure increase phenomenon generated in the water tank when the liquid is circulated during use is effectively released.

Description

Technical Field

[0001] The present invention relates to the field of cleaning technology, and in particular to a pressure relief water tank device suitable for cleaning tools. Background Art

[0002] The cleaning device usually needs to continuously scrub the surface to be cleaned so that the cleaning efficiency will be higher. However, when a scrubbing stick is used for scrubbing, the surface of the scrubbing stick is usually made of a sponge. After squeezing the scrubbing stick, the sewage is collected, and the squeezed air is also collected, causing the pressure in the collection liquid chamber to increase. The need to effectively release the pressure has become a problem that needs to be solved. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide a pressure relief water tank device suitable for cleaning tools, which can effectively release the water tank pressure.

[0004] In order to solve the above technical problems, the present invention provides a pressure relief water tank device suitable for cleaning tools, comprising a water tank body provided with a first cavity and open at one end, the open end of the water tank body being clamped with a water inlet and outlet mechanism for allowing water to enter or discharge the first cavity, and is characterized in that the water tank body is also provided with a pressure relief mechanism connecting the inside and outside of the first cavity, the pressure relief mechanism comprising a second cavity and a third cavity independently arranged from the first cavity, a filter screen being provided between the second cavity and the first cavity, an air passing component being provided between the third cavity and the second cavity, and the third cavity being connected to an exhaust nozzle connected to the outside.

[0005] Furthermore, the pressure relief mechanism includes a base plate detachably connected to the water tank body, two air passing components and two filter components arranged thereon, and a pressure relief mechanism cover that can be sealed on the water tank body.

[0006] Furthermore, a sealing ring is sleeved on the downwardly extending wall of the pressure relief mechanism cover, and the pressure relief mechanism cover, the sealing ring and the base plate form the second cavity.

[0007] Furthermore, a pressure relief port is provided at each end of the substrate, and a flange is extended upwards, and the air passing component is sleeved on the flange.

[0008] Furthermore, a first pressure relief joint and a second pressure relief joint with 90-degree corners are respectively provided on the back side of the flange, and a tee joint is connected between the two through a pressure relief hose. The vertical interface of the tee joint is connected to the exhaust nozzle. The two air passing components, the first pressure relief joint, the second pressure relief joint, the tee joint, the three sections of pressure relief hose, and the exhaust nozzle form the third cavity.

[0009] Furthermore, the exhaust nozzle includes a pin with a sealing assembly at one end, a spring sleeved on the other end of the pin, and a closing portion cooperating with the sealing assembly. The sealing assembly includes a fixed sleeve sleeved with the pin for limiting the position, the fixed sleeve is provided with a closing portion, and a sealing ring is sleeved slightly upward on the top end surface of the pin, and a space is provided between the closing portion and the sealing ring.

[0010] Furthermore, the sealing ring is provided with extension portions on both sides in a direction perpendicular to the diameter, and a protrusion in the diameter direction, and the protrusion is provided with a sealing mating surface.

[0011] Furthermore, the sealing mating surface is an inclined surface.

[0012] Furthermore, the pressure relief water tank device is also provided with an anti-loosening component that enables the water tank to fit tightly after installation, and the anti-loosening component is arranged at the lower part of the exhaust nozzle.

[0013] Furthermore, the anti-loosening component is higher than the surface of the water tank body, and the anti-loosening component includes a trumpet shape.

[0014] Furthermore, the water tank body is provided with a fixedly installed snap mechanism, which is provided with a tongue that can be extended and retracted along the length direction of the water tank body, an elastic component that can extend the tongue, and a movable operating component that can retract the tongue. The water tank body is provided with a mounting slope at the opposite end to the snap mechanism.

[0015] Furthermore, the water inlet and outlet mechanism includes a clean water output component and a sewage access component, wherein the clean water output component and the sewage access component each include a water inlet and outlet pin provided with a through hole and a water inlet and outlet interface terminal piece sleeved on the water inlet and outlet pin, the water inlet and outlet pin is sleeved with a water inlet and outlet top pressure spring that causes the water inlet and outlet top structure to be in an extending tendency, the water inlet and outlet pin includes an ejection part that cooperates with the water inlet and outlet on the water inlet and outlet interface terminal piece and a limiting part that limits the moving position, a sealing ring is provided between the ejection part and the water inlet and outlet, and when the water inlet and outlet pin is pressed and moved, the through hole and the water inlet and outlet are connected.

[0016] Furthermore, the water inlet and outlet interface terminal is provided with two water inlet and outlet cavities communicated with the water tank, and the two water inlet and outlet cavities can form two water inlet and outlet channels through the through hole and the water inlet and outlet.

[0017] Furthermore, the water inlet and outlet interface terminal piece is an integrated structure, the two water inlet and outlet cavities are independently arranged with respect to each other, and the two water inlet and outlet channels are independently arranged with respect to each other.

[0018] Furthermore, the water inlet and outlet ejector pin is provided with a fixing groove for fixing the water inlet and outlet sealing ring.

[0019] The present invention is suitable for use with a pressure-relief water tank device for cleaning tools, comprising a water tank body having a first cavity, the water tank body being equipped with a water inlet and outlet mechanism for allowing water to enter or exit the first cavity, and a pressure-relief mechanism for communicating between the interior and exterior of the first cavity. The pressure-relief mechanism comprises a second cavity and a third cavity independently disposed from the first cavity, a filter being disposed between the second cavity and the first cavity, and an air passage component being disposed between the third cavity and the second cavity, the third cavity being connected to an exhaust nozzle communicating with the exterior. Because the exhaust nozzle and the first cavity are connected through the pressure-relief mechanism comprising the second and third cavities, liquid is prevented from entering the exhaust line, without affecting air discharge. This effectively relieves the pressure buildup within the water tank caused by circulating liquid during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the description only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The figure is a schematic structural diagram of an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0022] Figure 2 The present invention is a schematic structural diagram from another perspective of an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0023] Figure 3 This is a schematic diagram of the explosion of the upper body of the pressure relief water tank device embodiment structure.

[0024] Figure 4 This is a detailed exploded diagram of the structure of the pressure relief water tank device embodiment after the upper body is hidden.

[0025] Figure 5 Schematic diagram of the structure in horizontal and vertical directions.

[0026] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the AA direction.

[0027] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure in the BB direction.

[0028] Figure 8 for Figure 7 Enlarged schematic diagram of the structure of part C in the middle.

[0029] Figure 9 for Figure 6Enlarged schematic diagram of the structure of part D in the middle.

[0030] Figure 10 for Figure 9 Enlarged schematic diagram of the structure of part F in the middle.

[0031] Figure 11 This is a schematic diagram of one of the usage states of the pressure relief water tank device when it is filled with liquid.

[0032] Figure 12 This is a schematic diagram of another usage state of the pressure relief water tank device when it is filled with liquid.

[0033] Figure 13 A centering planing view of another embodiment of a pressure relief water tank device suitable for cleaning tools.

[0034] Reference numerals:

[0035] Pressure relief water tank device 1, first cavity X, second cavity Y, third cavity Z;

[0036] Water inlet and outlet mechanism 10;

[0037] Interface terminal 101, water outlet interface terminal 101, return water interface terminal 101,

[0038] Clean water output assembly 102, water outlet ejector pin 1021, water outlet sealing ring 1022, water outlet limiter 1023, water outlet channel 1024, water outlet pressure spring 1025;

[0039] Sewage access assembly 103, return water ejector pin 1031, return water sealing ring 1032, return water limiter 1023, return water channel 1034, return water top pressure spring 1035;

[0040] Water inlet and outlet mechanism bottom shell 104, vent hole 1041, filter assembly connection port 1042, water suction pipe interface 1043, sewage return port 1045, guide rib 1046,

[0041] Sealing plate 105,

[0042] Suction pipe 106;

[0043] Water tank body 20;

[0044] Clamping portion 201,

[0045] Card slot 202,

[0046] Exhaust nozzle 203, ejector pin 2031, sealing ring 2032, first extension portion 20321, second extension portion 20322, protrusion 20323, fixing sleeve 2033, cylinder cover 2034, sealing O-ring 2035, pressure relief spring 2036,

[0047] Pressure relief mechanism connection seat 204, pressure relief mechanism connector 2041,

[0048] Pressure relief mechanism 205, pressure relief mechanism cover 2051, sealing ring 2052, air passing component 2053, pressure relief port 2054, first pressure relief joint 2055, second pressure relief joint 2056, three-way joint 2057, base plate 2058, filter assembly 2059,

[0049] Upper body 206,

[0050] Lower body 207;

[0051] Filter assembly 40, filter assembly connection port 401;

[0052] Pressure relief hose 60;

[0053] Liquid level line H;

[0054] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0055] The following is a further detailed description of the claims of the present invention in conjunction with specific embodiments and accompanying drawings. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field without making creative efforts are also within the scope of protection of the present invention.

[0056] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up," "down," "left," "right," "front," "back," etc., indicate positions or positional relationships based on the positions and positional relationships shown in the accompanying drawings or the positions or positional relationships in which the inventive product is typically placed when in use. These terms are intended only to simplify the description of the present invention and do not explicitly or implicitly indicate that the devices, elements, or components referred to must have a specific position or specific directional structure, and should not be construed as limiting the present invention. They are only used to explain the relative positional relationships and movement conditions between the components shown in the accompanying drawings. When the specific posture changes, the directional indication may also change accordingly.

[0057] Furthermore, ordinal numbers such as "first" and "second" in this disclosure are used solely for distinction purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. The terms "first" and "second" may explicitly or implicitly indicate at least one of the technical features. In this disclosure, "plurality" means at least two, i.e., two or more, unless otherwise expressly specified; and "at least one" means one, one, or more.

[0058] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can mean that the positional relationship between components is relatively fixed, or that the components are physically fixedly connected. It can be a detachable connection or an integrated structure. It can be a mechanical connection or an electrical signal connection. It can be a direct connection or an indirect connection through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined in the specification, other understandings may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The controllers and control circuits involved in the present invention are conventional control technologies or units known to those skilled in the art. For example, the control circuits of the controllers can be implemented by those skilled in the art using existing technologies, such as simple programming. Regarding software or programs that work with hardware to achieve control results, if the description does not provide a detailed description of the software or program control process involved, then the existing technologies or conventional technologies known to those skilled in the art are used. The power supply also uses the existing technologies described above, and the main technical point of the present invention is to improve the mechanical device. Therefore, the present invention will not further describe the specific circuit control relationships and circuit connections.

[0060] The disclosure of the present invention provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0061] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0062] like Figures 1-12 As shown, the present invention provides an embodiment of a pressure relief water tank device suitable for cleaning tools.

[0063] The pressure relief water tank device 1 suitable for cleaning tools includes a water tank body 20 provided with a first cavity X, and the water tank body 20 is provided with a water inlet and outlet mechanism 10 for allowing water to enter or discharge the first cavity X. The water tank body 20 is also provided with a pressure relief mechanism 205 that connects 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 arranged from the first cavity X. A filter assembly 2059 is provided between the second cavity Y and the first cavity X, and an air passing component 2053 is provided between the third cavity Z and the second cavity Y. The third cavity Z is connected to an exhaust nozzle 203 connected to the outside.

[0064] Specifically, if 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 through the pressure relief mechanism 205, liquid can be prevented from entering the exhaust pipeline without affecting air discharge, and the pressure generated in the pressure relief tank device 1 when the liquid is circulated during use can be effectively released.

[0065] Specifically, if Figure 3 、 Figure 6 As shown, the water tank body 20 is provided with a groove (not marked in the drawings), and the detachable and maintainable pressure relief mechanism 205 is sealed and installed on the groove. The pressure relief mechanism 205 includes a base plate 2058 that can be removed from the water tank body 20, an air passing component 2053 sleeved on the base plate 2058, a filter assembly 2059 arranged on the base plate 2058, and a detachable sealing cover connected to the pressure relief mechanism cover 2051 on the groove, and a sealing ring 2052 that forms a sealing connection with the groove is sleeved on the sealing wall extending downward of the pressure relief mechanism cover 2051, and a pressure relief port 2054 is provided at each end of the base plate 2058. The pressure relief port 2054 extends upward with a flange, and the two air passing components 2053 are separated. It is separately sleeved on the flange of the pressure relief port 2054, and a first pressure relief joint 2055 and a second pressure relief joint 2056 with 90-degree corners are respectively provided on the back side of the flange of the base plate 2058. There is also a three-way joint 2057 connected between the first pressure relief joint 2055 and the second pressure relief joint 2056 through two sections of pressure relief hoses 60. The three-way joint 2057 itself has no direct connection with the base plate 2058. The two horizontal interfaces of the three-way joint 2057 are respectively connected to the first pressure relief joint 2055 and the second pressure relief joint 2056 through the pressure relief hose 60, and one vertical interface of the three-way joint 2057 is connected to the exhaust nozzle 203 through the pressure relief hose 60.

[0066] Specifically, if 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 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 cavity (not shown) with one end open and connected to the second cavity Y, and a flat air nozzle (not shown) at the other end connected to the air cavity. The two air passage components 2053, the first pressure relief joint 2055, the second pressure relief joint 2056, the three-way joint 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.

[0067] like Figure 6 As shown, the two filter components 2059 are the starting points of the passage for the first cavity X to release air pressure to the outside, and the two filter components 2059 are also the starting points of the passage for the second cavity Y to receive and release air pressure. The two air passing components 2053 are the end points of the passage for the second cavity Y to release air pressure to the outside, and the two air passing components 2053 are also the starting points of the passage for the third cavity Z to receive and release air pressure, and the exhaust nozzle 203 is the end point of the passage for the third cavity Z to release air pressure to the outside.

[0068] As a further improved implementation method, the air passing component 2053 is not limited to the flat-mouth one-way valve structure described above. Other structures that can function as one-way valves and can allow one-way air to pass through can also be used to replace the air passing component 2053. Simple modifications and replacements made by technicians in this field based on the above and below texts, without any creative labor, to obtain technical solutions similar to the present application are all within the scope of protection of the present application.

[0069] Specifically, if Figure 2 、 Figure 4 、 Figure 6 、 Figure 9 、 Figure 10 As shown, the pressure relief water tank device 1 is provided with an anti-loosening component that allows the water tank to fit tightly with the cleaner after installation. The anti-loosening component is higher than the surface of the water tank body 20, and the lower end opening of the anti-loosening component is shaped like a trumpet. In this embodiment, the anti-loosening component is preferably made of an elastic material. During use, since the anti-loosening component is slightly higher than the water tank body, the gap between the water tank body and the fixed water tank structure can be filled by the anti-loosening component, which can reduce the loosening of the water tank body after it is fixed. The anti-loosening component is preferably set between the installation bevel and the snap mechanism, and has a large contact surface with the fixed water tank structure.

[0070] Specifically, if Figure 4 、 Figure 9As shown, the anti-loosening component is a cylinder cover 2034 arranged at the lower part of the exhaust nozzle 203.

[0071] Specifically, if Figure 4 、 Figure 9 As shown, the exhaust nozzle 203 includes a fixed sleeve 2033 that is sleeved with the ejector pin 2031 and limited. The outer wall of the fixed sleeve 2033 is provided with an annular mounting groove (not shown in the drawings), and 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 sleeved outside the fixed sleeve 2033. A flower bottle neck-type closing portion (not shown in the drawings) is provided at the lower end of the fixed sleeve 2033. The fixed sleeve 2033 The lower end is detachably connected to the barrel cover 2034 by clamping the annular protrusion (not shown in the drawings) of the barrel cover 2034 with the bottle neck-shaped closing portion. The outer wall of the barrel cover 2034 smoothly transitions with the outer wall of the lower end of the fixed sleeve 2033. The lower end of the barrel cover 2034 opens downward in a trumpet shape. The neck (not shown in the drawings) slightly upward of the top connecting end surface (not shown in the drawings) of the front end of the ejector pin 2031 is provided with a sealing ring 2032. Figure 10 As shown, the sealing ring 2032 is provided with extensions on both sides in the vertical direction of the diameter, namely the first extension 20321 and the second extension 20322, and a protrusion 20323 is provided outward in the diameter direction. The protrusion 20323 is provided with a sealing mating surface (not marked in the accompanying drawings) that is sealed with the flower bottle neck-shaped closing portion at the lower end of the fixed sleeve 2033. The sealing mating surface is set as an inclined surface. Since the sealing mating surface is set as an inclined surface, a better sealing effect can be formed during the sealing process. A clearance (not marked in the accompanying drawings) is provided between the flower bottle neck-shaped closing portion at the lower end of the fixed sleeve 2033 and the sealing ring 2032, which can provide space for the elastic deformation of the protrusion 20323. During the sealing process, it is easier to form a sealing effect, and it is not easy to form an overly tight fit that requires a large force to release during discharge. Figure 9 As shown, an abutment groove (not shown in the drawings) for accommodating a spring 2036 is provided on the neck of the ejector pin 2031, and the other end of the spring 2036 abuts against an abutment protrusion (not shown in the drawings) of the pressure relief mechanism connecting seat 204. When the abutting end surface at the front end of the ejector pin 2031 is pressed by an external force, the ejector pin 2031 further compresses the spring 2036, so that the sealing mating surface on the protrusion 20323 of the sealing ring 2032 leaves the bottle neck-shaped closing portion at the lower end of the fixing sleeve 2033, thereby opening a passage from the third cavity Z to the outside.

[0072] As a further improved implementation method, Figure 6 、 Figure 9As shown, the anti-loosening component can be specifically a barrel cover 2034 that is clamped on the lower end of the fixed sleeve 2033, the lower end opening of the barrel cover 2034 is trumpet-shaped, and the annular protrusion on the inner wall of the opening at the upper end of the barrel cover 2034 is detachably clamped on the outer wall of the bottle neck-shaped closing part at the lower end of the fixed sleeve 2033, and the barrel cover 2034 is arranged on the exhaust nozzle 203.

[0073] Specifically, if Figure 5 、 Figure 6 As shown, the water tank body 20 is provided with a fixedly mounted snap mechanism, specifically a snap portion 201 recessed inwardly on the water tank body 20, and a snap groove 202 further recessed inwardly provided on the snap portion 201. When securing the pressure relief water tank assembly 1, a corresponding snap on the cleaner can be snapped into the snap groove 202 of the snap portion 201. When removing the pressure relief water tank assembly 1, the corresponding snap can be released to remove the pressure relief water tank assembly 1. The water tank body 20 is provided with a mounting bevel (not shown in the drawings) on the end opposite the snap.

[0074] As a further improved embodiment, the water tank body 20 is provided with a fixedly installed snap mechanism (not marked in the drawings), which is provided with a tongue (not marked in the drawings) that can be extended and retracted along the length direction of the water tank body, an elastic component (not marked in the drawings) that can extend the tongue, and a movable operating component (not marked in the drawings) that can retract the tongue.

[0075] Specifically, if Figure 2 、 Figure 4 、 Figure 7 、 Figure 8 As shown, the water inlet and outlet mechanism 10 includes a clean water output component 102 and a sewage access component 103, wherein the clean water output component 102 includes a water outlet pin 1021 provided with a through hole and a water outlet interface terminal 101 sleeved on the water outlet pin. The water outlet pin is sleeved with a water outlet pressure spring 1025 that causes the water outlet pin structure to extend. The water outlet pin includes a ejection portion (not shown in the figure) that cooperates with the clean water outlet (not shown in the figure) on the water outlet interface terminal 101 and a water outlet limiter 1023 that limits the movement position. A water outlet sealing ring 1022 is provided between the ejection portion and the clean water outlet. When the water outlet pin 1021 is pushed and moved, the through hole is connected to the clean water outlet. The water outlet interface terminal is provided with a water outlet cavity (not shown in the figure) connected to the water tank. The water outlet cavity can form a water outlet channel 1024 with the clean water outlet through the through hole.

[0076] Specifically, if Figure 2 、 Figure 4 、 Figure 7 、 Figure 8As shown, the sewage access assembly 103 includes a return water ejector pin 1031 with a through hole and a return water interface terminal 101 sleeved on the return water ejector pin. The return water ejector pin 1031 is sleeved with a return water pressure spring 1035 that causes the outlet ejector pin structure to extend. The return water ejector pin 1031 includes a protrusion (not shown) that cooperates with the return water inlet (not shown) on the return water interface terminal 101 and a return water limiter 1023 that limits its movement position. A return water sealing ring 1032 is provided between the protrusion and the return water inlet. When the outlet ejector pin is pressed and moved, the through hole communicates with the return water inlet. The return water interface terminal is provided with a return water cavity (not shown) that communicates with the water tank. The return water cavity can form a return water channel 1034 with the return water inlet through the through hole.

[0077] Specifically, if Figure 2 、 Figure 4 、 Figure 6 、 Figure 8 As shown, the outlet and return interface terminals are integrally formed and may be collectively referred to as the interface terminal 101. The return cavity and the outlet cavity are independently provided. The return ejector pin 1031 and the outlet ejector pin 1021 are respectively provided with fixing grooves (not shown) for fixing the return seal ring 1032 and the outlet seal ring 1022.

[0078] As a further improved implementation method, the water outlet interface terminal and the return water interface terminal are detachable, combinable and fixed split structures, the return water cavity and the water outlet cavity are independently arranged, the water outlet interface terminal and the return water interface terminal are combined together to form a complete interface terminal 101, and the return water ejector pin 1031 and the water outlet ejector pin 1021 are respectively provided with fixing grooves for fixing the return water sealing ring 1032 and the water outlet sealing ring 1022 (not marked in the figure).

[0079] Specifically, if Figure 4 、 Figure 8As shown, the clean water output component 102 and the sewage access component 103 of the water inlet and outlet mechanism 10 are elastically clamped between the interface terminal 101 and the water inlet and outlet mechanism bottom shell 104, one end of the water outlet top pressure spring 1025 abuts on the water outlet ejector pin 1021 and the other end abuts on the water inlet and outlet mechanism bottom shell 104, one end of the return water top pressure spring 1035 abuts on the return water ejector pin 1031 and the other end abuts on the water inlet and outlet mechanism bottom shell 104; both ends of the interface terminal 101 are open, the end with the larger opening is provided with a card interface edge (not shown in the figure) with a flip-over interface that expands outward and has a certain strength and thickness, and the end with the smaller opening is sleeved on the inlet and outlet On the inner wall of the water mechanism bottom shell 104, a partition (not shown in the figure) is provided on the side of the interface terminal 101 close to the large mouth end to block the opening, and the partition is provided with a conical through hole that abuts the water outlet ejector pin 1021 and the return water ejector pin 1031; a sealing gasket 105 is sandwiched between the end face of the small mouth end of the interface terminal 101 and the inner bottom wall of the water inlet and outlet mechanism bottom shell 104, and the sealing gasket 105 is made of elastic material. After the interface terminal 101 and the water inlet and outlet mechanism bottom 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-mouth end and the small-mouth end of the interface terminal 101 maintain two different outer diameters. The outer wall of the interface terminal 101 must be provided with a step (not marked in the figure) that divides the large-mouth end and the small-mouth end. The lower part of the card interface edge of the large-mouth end of the interface terminal 101 extends all the way to the outer wall of the step and is sleeved with a sealing ring 1011. The sealing ring 1011 can seal the gap after the water inlet and outlet mechanism 10 and the water tank body 20 are clamped. One end of the water inlet and outlet mechanism bottom shell 104 is open, and the open end is sleeved with the interface terminal 101, and the other end is closed, but a through hole is provided on the closed end surface of the water inlet and outlet mechanism bottom shell 104, which is connected to the clean water output component 102 and the sewage access component 103, wherein a water suction pipe interface 1043 is provided on the closed end surface of the water inlet and outlet mechanism bottom shell 104 and extends outward from the through hole of the clean water output component 102, and a filter component connection port 1042 is extended outward from the closed end surface of the water inlet and outlet mechanism bottom shell 104 around the water suction pipe interface 1043, and the inner wall of the filter component connection port 1042 is provided with a thread (not marked in the figure), which is coupled and detachably connected with the external thread (not marked in the figure) of the filter component connection port 401 at an open end of a cylindrical filter component 40, and the peripheral wall and bottom wall of the filter component 40 are provided with multiple hollow structures (not marked in the figure), and its outer surface is covered with a filter net (not marked in the figure).A suction pipe 106 is sleeved on the suction pipe interface 1043, and the suction pipe 106 extends to the area close to the bottom wall of the filter assembly 40. In this way, when the water inlet and outlet mechanism 10 is facing upward, the filtered water in the filter assembly 40 in the pressure relief water tank device 1 can still be sucked by the suction pipe 106. This absorbable 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 marked in the figure). In addition to the filter component connection port 1042 on the closed end surface of the bottom shell 104 of the water inlet and outlet mechanism, there is also a sewage return port 1045 connected to the sewage access component 103. The cleaned sewage of the cleaner passes through the return channel 1034 and then through the sewage return port 1045 to enter the first cavity X in the pressure relief water tank device 1. After being filtered by the filter component 40, the sewage is sucked into the water outlet channel 1024 through the suction pipe 106 and finally sent to the water outlet passage of the cleaner (not marked in the figure) through the clean water output component 102. An air vent 1041 is also provided within the filter assembly connection port 1042 on the closed end surface of the water inlet and outlet mechanism bottom shell 104. When the water inlet and outlet mechanism 10 is facing upward and the pressure relief mechanism 205 has lost 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 air vent 1041 and then be sent to the water outlet passage of the cleaner (not shown in the figure) through the clean water output assembly 102. A guide rib 1046 is provided on the outer wall of the bottom shell 104 of the water inlet and outlet mechanism and the water tank body 20. The guide rib 1046 helps the installed water inlet and outlet mechanism 10 to be easily inserted into the water tank body 20. Since the outer wall of the water inlet and outlet mechanism 10 and the water tank body 20 are in a regular and symmetrical shape, the guide rib 1046 can also play a role in preventing reverse connection after it is provided.

[0080] Specifically, if Figure 2 、 Figure 3 、 Figure 4As shown, the pressure relief water tank device 1 includes an upper water tank body 206 and a lower water tank body 207. The upper water tank body 206 and the lower water tank body 207 are sealed together. The side surface extending upward from the bottom of the lower water tank body 207 is an inclined surface. The top of the inclined surface, on the side opposite to the water inlet and outlet mechanism 10, is provided with a concave clamping portion 201 for easy installation and fixation. The clamping portion is provided with a concave clamping groove 202. When the pressure relief water tank device 1 is fixed, the corresponding buckle on the cleaner can be snapped into the clamping groove 202 of the clamping 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. As a further improved embodiment, the upper water tank body 206 and the lower water tank body 207 are sealed together by an ultrasonic welding layer (not shown in the figure).

[0081] As a further improved embodiment, the water tank upper body 206 and the water tank lower body 207 are sealed and connected by a secondary injection molding process.

[0082] As a further improved embodiment, the water tank upper body 206 and the water tank lower body 207 are sealed and connected by a direct bonding process.

[0083] Specifically, if Figure 11 As shown, when the water inlet and outlet mechanism 10 of the pressure relief water tank device 1 is tilted downward, a portion of the pressure relief mechanism 205 on the side away from the water inlet and outlet mechanism 10 is located above the liquid level H. Regardless of whether the opening of the water suction pipe 106 is always below the liquid level H, the pressure relief water tank device 1 still has the ability to release pressure to the outside of the pressure relief water tank device and also has the ability to continuously output clean water. When the water inlet of the water suction pipe 106 is below the liquid level H, the water suction pipe 106 can naturally achieve the effect of "discharging water outward." When the water inlet of the water suction pipe 106 is above the liquid level H, the vent 1041 of the water inlet and outlet mechanism 10 is below the liquid level H and is merely a very small bypass branch of the water outlet channel 1024. Under the pressure of the liquid level H, the bypass branch of the water vent 1041 can achieve the effect of "discharging water outward." 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 posture has the ability to supply water to the outside and release pressure to the outside at the same time.

[0084] Specifically, if Figure 12As shown, when the water inlet and outlet mechanism 10 of the pressure relief water tank device 1 is tilted upward, a portion of the pressure relief mechanism 205 on the side close to the water inlet and outlet mechanism 10 is located above the liquid level H. At this time, the opening of the water suction pipe 106 is lower than the liquid level H. Under the combined action of water pressure and air pressure, the pressure passes through the pressure relief mechanism 205 and directly acts on the exhaust nozzle 203 of the pressure relief water tank device 1 along the pressure relief pipeline. The exhaust nozzle 203 can be specifically a one-way valve. Due to the one-way conduction effect of the one-way valve, the one-way valve is compacted and closed under the combined action of water pressure and air pressure. The air vent 1041 of the water inlet and outlet mechanism 10 is above the liquid level H and is merely a tiny bypass branch of the water outlet channel 1024. The air vent 1041 is connected to the outside atmosphere. A circuitous structure (not shown in the accompanying drawings) is located before the air vent 1041 to block the flow of water toward the bypass branch. Simply put, the bypass branch of the air vent 1041 connected to the outside atmosphere achieves the "air-permeable, water-tight" effect. At this point, the bypass branch of the air vent 1041 connected to the outside atmosphere has the ability to release pressure outside the water supply device. At the same time, due to the pressure difference between the inside and outside of the water supply device, and the water inlet and / or water suction hole on the water suction pipe 106, which are always below the liquid level H, the clean water output assembly can continuously output clean water. The water supply device of a car wash device used in this manner 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 opening of the suction pipe 106, the pressure relief water tank device 1 is naturally unable to continuously output clean water. At this time, the user is reminded to add clean water to the pressure relief water tank device 1 in order to continue using the cleaner.

[0085] like Figure 13 As shown, the present invention provides another embodiment of a pressure relief water tank device suitable for cleaning tools.

[0086] Unlike the previous embodiment, the second pressure relief joint 2056 is replaced with a tee joint, eliminating the original tee joint 2057. The horizontal ends of the first pressure relief joint 2055 and the second pressure relief joint 2056 are directly connected by the pressure relief hose 60, while the other vertical end of the second pressure relief joint 2056 is connected to the exhaust nozzle 203 by the pressure relief hose 60. The exhaust nozzle 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 to enhance the filtering effect without increasing its diameter. It also allows the water suction pipe 106 to extend longer, thereby reducing the possibility of residual and unusable water in the pressure relief water tank device 1 when the water inlet and outlet mechanism 10 is tilted upward.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various 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 is provided with a first cavity and an opening at one end, and is also provided with a groove; The water inlet and outlet mechanism is clamped on the open end of the water tank body to allow water to enter or discharge the first cavity. The water inlet and outlet mechanism includes a bottom shell of the water inlet and outlet mechanism. The closed end surface of the bottom shell of the water inlet and outlet mechanism is provided with a vent hole, and the closed end surface is extended outward to provide a water suction pipe interface; A pressure relief mechanism is detachably mounted in the groove and communicates with the inside and outside of the first cavity, including a second cavity and a third cavity independently disposed from the first cavity, and further comprising a base plate detachable from the water tank body, two air passing components sleeved on the base plate, and two filter assemblies disposed at both ends of the base plate, the filter assemblies communicating with the second cavity and the first cavity, the air passing components communicating with the third cavity and the second cavity, and the third cavity communicating with an exhaust nozzle communicating with the outside; Water is circulated and filtered in the first cavity, and the first cavity is at least partially located above the liquid surface.

2. The pressure relief water tank device for cleaning tools according to claim 1, characterized in that: The pressure relief mechanism also includes a detachable sealing cover connected to the pressure relief mechanism cover on the groove, a pressure relief port is provided at each end of the substrate, the air passing component is sleeved on the flange of the pressure relief port, and a sealing ring is sleeved on the downward extending wall of the pressure relief mechanism cover. The pressure relief mechanism cover, the sealing ring, and the substrate form the second cavity.

3. The pressure relief water tank device for cleaning tools according to claim 2, characterized in that: A pressure relief port is provided at each of the two ends of the base plate, and a flange is extended upwards, and the air passing component is sleeved on the flange.

4. The pressure relief water tank device for cleaning tools according to claim 3, characterized in that: On the back side of the flange, there are respectively provided a first pressure relief joint and a second pressure relief joint with 90-degree corners, and a tee joint is connected between the two through a pressure relief hose. The vertical interface of the tee joint is connected to the exhaust nozzle. The two air passing components, the first pressure relief joint, the second pressure relief joint, the tee joint, the three sections of pressure relief hose, and the exhaust nozzle form the third cavity.

5. The pressure relief water tank device suitable for cleaning tools according to claim 1, characterized in that: The exhaust nozzle includes a pin with a sealing assembly at one end, a spring sleeved on the other end of the pin, and a closing portion cooperating with the sealing assembly. The sealing assembly includes a fixed sleeve sleeved with the pin for limiting position, the fixed sleeve is provided with a closing portion, a sealing ring is sleeved slightly upward from the top end surface of the pin, and a space is provided between the closing portion and the sealing ring.

6. The pressure relief water tank device for cleaning tools according to claim 5, characterized in that: The sealing ring is provided with extension parts on both sides in the vertical direction of the diameter, and a protrusion is provided in the diameter direction. The protrusion is provided with a sealing matching surface, and the sealing matching surface is an inclined surface.

7. The pressure relief water tank device for cleaning tools according to claim 1, characterized in that: The pressure relief water tank device is also provided with an anti-loosening component that enables the water tank to fit tightly after installation. The anti-loosening component is arranged at the lower part of the exhaust nozzle, and the anti-loosening component is higher than the surface of the water tank body. The anti-loosening component includes a trumpet shape.

8. The pressure relief water tank device for cleaning tools according to claim 1, characterized in that: The water tank body is provided with a fixedly installed snap mechanism, which is provided with a tongue that can be extended and retracted along the length direction of the water tank body, an elastic component that can extend the tongue, and a movable operating component that can retract the tongue. The water tank body is provided with a mounting inclined surface at the opposite end to the snap mechanism.

9. The pressure relief water tank device for cleaning tools 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 provided with a through hole and a water outlet interface terminal piece sleeved on the water outlet pin. The water outlet pin is sleeved with a water outlet pressure spring that causes the water outlet pin to be in a protruding trend. The water outlet pin includes an ejection part that cooperates with the clean water outlet on the water outlet interface terminal piece and a limiting part that limits the moving position. A sealing ring is provided between the ejection part and the clean water outlet. When the water outlet pin is pressed and moved, the through hole is connected to the clean water outlet.

10. The pressure relief water tank device suitable for cleaning tools according to claim 9, characterized in that: The water outlet interface terminal is provided with a water outlet cavity communicated with the water tank, and the water outlet cavity forms a water outlet channel with the clean water outlet through the through hole.

11. The pressure relief water tank device suitable for cleaning tools according to claim 10, characterized in that: The water inlet and outlet mechanism includes a sewage access component, which includes a return water ejector with a through hole and a return water interface terminal piece sleeved on the return water ejector. The return water ejector is sleeved with a return water pressure spring that causes the return water ejector to extend. The return water ejector includes an ejection part that cooperates with the return water inlet on the return water interface terminal piece and a limiting part that limits the moving position. A sealing ring is provided between the ejection part and the return water inlet. When the return water ejector is pressed and moved, the through hole is connected to the return water inlet.

12. The pressure relief water tank device for cleaning tools according to claim 11, characterized in that: The return water interface terminal is provided with a return water cavity communicated with the water tank, the return water cavity forms a return water channel with the return water inlet through a through hole, and the water outlet interface terminal and the return water interface terminal are an integrated structure.

13. The pressure relief water tank device suitable for cleaning tools according to claim 12, characterized in that: The return water cavity and the water outlet cavity are independently arranged, and the water outlet channel and the return water channel are independently arranged.

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