Pressure relief and filtration integrated device

Abstract

The invention is applicable to the technical field of cleaning equipment, and discloses a pressure relief and filtration integrated device which is slidably clamped in a water tank capable of continuously and circularly filtering inlet and outlet water, the water tank is provided with a bayonet part, and the pressure relief and filtration integrated device comprises a filtration assembly and a pressure relief assembly; the filtering assembly is provided with a framework, the front end wall and the rear end wall of the framework are solid walls, and a water outlet connector and an exhaust connector are formed in the front end wall abutting against the bottom wall of the bayonet part of the water tank. The pressure relief assembly is arranged at one end of the filtering assembly, is detachably connected with the framework in the filtering assembly and is provided with a pressure relief channel, and one end of the pressure relief channel is connected to the exhaust connector and abuts against the inner wall of the clamping end face of the water tank; sewage sent back to the water tank is fully contacted with the filtering assembly and then filtered into clear water which can be sent out of the water tank again. During use, the circulating cleaning container is in a moving state, so that the pressure relief assembly can play a role inevitably, the pressure in the containing cavity can be released, and the pressure inside and outside the water tank is balanced.

Description

[0001] This application is a divisional application of Chinese patent application number 2023107229805, invention name “A pressure relief and filtration integrated device for a water tank with continuous water inlet and outlet”, and application date June 16, 2023 (priority date October 13, 2022), the contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of cleaners, in particular to a pressure relief and filtering integrated device for cleaners which is installed in a water tank capable of continuously inflowing and outflowing water. Background Art

[0003] In daily life, we are accustomed to using cleaners to clean our homes, daily necessities, and travel items. To ensure water consumption, cleaners are often equipped with water tanks. Currently, some cleaners use separate cleaning and wastewater tanks, while others use integrated recycling tanks. Integrated cleaning and wastewater tanks primarily process wastewater from cleaning products before entering the tank, thereby increasing water recycling.

[0004] In addition, because water tanks are generally sealed containers, in order to ensure the normal flow of clean and dirty water during operation, the water tank needs to be depressurized. At the same time, integrated water tanks for cleaning and sewage usually need to be equipped with a filter device. Currently, water tanks with filter devices on the market generally have the filter device installed at the sewage inlet, filtering the sewage as it enters. The filtered water is then used to clean the items or environment that need to be cleaned through the water outlet. The disadvantage of this design is that too many impurities will remain in the filter device, which will easily clog the filter holes over time, thereby affecting the filtering effect. In addition, the filter device is generally installed in the water tank, which is particularly inconvenient to clean. Summary of the Invention

[0005] The main technical problem solved by the present invention is to provide a pressure relief and filtering integrated device for a water tank that can continuously inlet and outlet water. The device is installed inside the water tank so that the liquid in the cavity of the water tank flows out of the cavity after filtration. The pressure relief and filtering integrated device can effectively balance the pressure in the water tank and reduce the adverse effects caused by the increase of pressure in the water tank.

[0006] In order to solve the above problems, the present invention provides a pressure relief and filtration integrated device, which is slidably engaged with the interior of a water tank that can continuously circulate and filter the inlet and outlet water. The water tank has a bayonet portion. The pressure relief and filtration integrated device includes:

[0007] The filter assembly has a frame, the front and rear end walls of the frame are solid walls, and the front end wall that abuts against the bottom wall of the bayonet portion of the water tank is provided with a water outlet interface and an exhaust interface;

[0008] The pressure relief assembly is provided with a pressure relief channel, one end of which is connected to the exhaust interface and abuts against the inner wall of the clamping end face of the water tank;

[0009] The sewage sent back to the water tank is fully contacted with the filter component and filtered into clean water, which can be sent out of the water tank again.

[0010] In one or more embodiments, the water tank comprises:

[0011] The water tank body assembly includes a cylindrical water tank body with an open large end and a closed small end and a cavity, and a bayonet portion at the small end of the water tank body that closes the cavity. The liquid in the cavity flows out of the cavity after being filtered. The bayonet portion is provided with a clean water channel, a sewage channel, and an exhaust channel.

[0012] The water tank bayonet assembly is mounted on the small end surface of the water tank body and is detachably fastened to the bayonet portion by screws;

[0013] The integrated pressure relief and filtration device is slidably engaged in the water tank body;

[0014] The pressure accumulated in the volume cavity can be discharged out of the water tank through the integrated pressure relief and filtering device along the exhaust channel provided on the bayonet portion.

[0015] In one or some embodiments, the bottom of the cylindrical body side where the water tank body and the cleaner body cooperate is flat, and two abutment surfaces are provided along the waist slanting upward along the flat bottom. The abutment surfaces and the flat bottom and the waist connecting the two cooperate with the cleaner body to abut.

[0016] In one or some embodiments, two clamping ribs are provided inside the water tank for slidingly clamping the integrated pressure relief and filtering device. The two clamping ribs are parallel to the axis of the water tank body. One end of the clamping rib extends along the depth direction of the water tank body to the large end opening of the water tank body, and the other end of the clamping rib extends along the depth direction of the water tank body to the middle of the water tank body.

[0017] In one or some embodiments, the bayonet portion is provided with a multi-layer wall thickness structure in the depth direction of the cylindrical water tank body, and guide wings that can be slidably engaged on the engaging ribs are provided on both sides of the integrated pressure relief and filtering device.

[0018] In one or some embodiments, the multi-layer wall thickness structure includes:

[0019] The first step end surface abuts against one end surface of the bayonet plate of the water tank bayonet assembly,

[0020] The second step end surface abuts against one end surface of the bayonet sealing pad of the water tank bayonet assembly,

[0021] The sewage channel wall surrounding the sewage channel is parallel to the third step end face of the second step end face,

[0022] And a fourth step end surface abutting against an end surface of the pressure relief filter assembly pointing to the water tank bayonet assembly.

[0023] In one or some embodiments, the end face of the sewage channel of the bayonet part is provided with an abutment, and the abutment is provided with a chamfer at one end facing the outside of the water tank body, and a double-layer connecting ring wall that is not conductive to the outside is provided at the other end. The hollow part of the double-layer connecting ring wall just clamps a spring, and the end face of the sewage channel of the bayonet part is also provided with a sewage channel surrounding wall that is closed and abutted with the outer ring wall of the abutment. The sewage channel surrounding wall is provided with a ring wall corresponding to the inner ring wall of the abutment on the part of the third step surface, and the other end of the spring is clamped on the ring wall. The abutment clamps and clamps a spring to form a complete elastic abutment component.

[0024] In one or some embodiments, the entrance of the sewage channel is the sewage outlet of the water tank bayonet assembly that is exposed when the abutment is compressed by external force, the outlet of the sewage channel is the sewage pipe interface, and the part of the sewage channel between the sewage outlet and the sewage pipe interface is the sewage side entry channel. The outer annular wall of the abutment, the surrounding wall of the sewage channel, the central solid part of the bayonet part and the inner wall corresponding to the sewage channel together enclose the sewage side entry channel.

[0025] In one or some embodiments, in order to allow the sewage returned through the return pipe to penetrate deeper into the center of the water tank, a sewage pipe can be inserted at the sewage pipe interface. The sewage inlet, sewage side inlet channel, sewage pipe interface and sewage pipe together form the entire sewage channel. The elastic abutment assembly includes an abutment and a spring. When the abutment is pressed by external force, the abutment compresses the spring, thereby opening the sewage channel.

[0026] In one or some embodiments, the pressure relief assembly is detachably connected to the skeleton at one end of the filter assembly and inside the filter assembly.

[0027] In one or some embodiments, the water tank further comprises:

[0028] The water tank cover assembly has a gap between the other end of the filter assembly and the water tank cover assembly.

[0029] In one or some embodiments, the water tank body and the bayonet portion are integrally formed, and the bayonet end face of the water tank is provided with a water inlet, a water outlet and an exhaust port, and the pressure is discharged out of the water tank through the exhaust port of the water tank bayonet assembly.

[0030] In one or some embodiments, after the water tank is removed, the clean water channel, the sewage channel and the exhaust channel in the bayonet portion can still be automatically closed.

[0031] In one or some embodiments, the pressure relief assembly includes a pressure balancing mechanism that can communicate with the inside and outside of the cavity, and the pressure balancing mechanism includes a pressure relief port and a pressure relief channel communicated with the pressure relief port.

[0032] In one or some embodiments, the pressure relief channel is provided with two pre-pressure relief ports respectively connected to the cavities and a pre-pressure relief port control assembly respectively controlling one of the two pre-pressure relief ports to be connected to the pressure relief ports through the pressure relief channel. The pre-pressure relief port control assembly includes a pressure relief channel and two pressure relief control switches connected to the pressure relief channel.

[0033] When the two pressure relief control switches are not on the same horizontal line, one of the pressure relief control switches is in the closed state;

[0034] When the two pressure relief control switches are on the same horizontal line, one of the pressure relief control switches may be opened by the liquid in the cavity under the action of inertia.

[0035] In one or some embodiments, the water tank bayonet assembly also includes a bayonet plate and a bayonet sealing pad. The pressure balancing mechanism is connected to a filter assembly provided with an exhaust interface. When the pressure relief port of the pressure balancing mechanism is connected to the exhaust interface of the filter assembly, part of the pressure relief channel is formed.

[0036] In one or some embodiments, the pressure relief control switch includes two movable gravity balls, two limit parts for limiting the movement position of the gravity balls, and two elastic sleeves that can be blocked by the gravity balls and contain pre-pressure relief holes.

[0037] In one or some embodiments, the filter assembly and the pressure relief assembly are integrally formed.

[0038] In one or some embodiments, the pressure relief control switch includes an "I"-shaped pressure relief groove connected to the front and rear end walls of the filter assembly, and four pressure relief notches are provided at the root where the pressure relief groove is connected to the front and rear end walls of the filter assembly. The elastic sleeve is arranged at both ends of the pressure relief groove and can be taken out upward, and two limiting parts are arranged at two locations of 1 / 3 and 2 / 3 of the length of the pressure relief groove and extend upward from the bottom surface of the pressure relief groove. Two gravity balls are arranged between the elastic sleeve and the limiting part, and the bottom of the pressure relief groove is provided with an inclined surface for moving the gravity ball toward the direction of the pre-pressure relief through hole and a flat surface connecting the bottom of the inclined surface and parallel to the pre-pressure relief through hole.

[0039] In one or some embodiments, a pressure relief rear section channel is provided in the middle of the pressure relief groove close to one side wall, extending from the top of the pressure relief groove downward to the middle of the height direction of the filter assembly, then turning 90 degrees toward the front wall corner of the filter assembly, and then continuing to extend toward the end face of the front wall of the filter assembly and connected to the exhaust interface on the front face. The pressure relief rear section channel is part of the pressure relief channel.

[0040] In one or some embodiments, the pressure relief rear section channel includes a pressure relief rear section channel component, and the pressure relief rear section channel is provided with a downwardly recessed exhaust valve installation step at the starting point of the top of the pressure relief groove, and the pressure relief rear section channel entrance is provided at the center of the exhaust valve installation step. On the passage of the pressure relief rear section channel, a tubular component connecting the pressure relief channel entrance and the exhaust interface and having a 90-degree corner and surrounding and closing the entire pressure relief rear section channel is the pressure relief rear section channel component, and the exhaust valve installation step at the starting point of the pressure relief groove at the top of the pressure relief groove forms a gap between the pressure relief groove and the pressure relief rear section channel on the pressure relief rear section channel, and the gap just connects the pressure relief groove and the pressure relief rear section channel.

[0041] In one or some embodiments, the skeleton is in the shape of a long box, with an open top surface and hollow sides and a bottom surface. The covers of the side surfaces and the bottom surface of the skeleton are provided with filter nets. The sewage entering the water tank cavity through the sewage channel enters the pressure relief and filtration integrated device under the filtering action of the filter net and becomes "sub-clean water" and then is sent out of the water tank cavity through the clean water channel through the water outlet interface of the pressure relief and filtration integrated device.

[0042] In one or some embodiments, a handle is provided at the lower portion of the other end wall opposite to the front end wall of the frame for facilitating sliding the entire integrated pressure relief and filtration device out of the water tank.

[0043] In one or some embodiments, a circle of slots that can elastically engage a sealing ring is provided on the top of the frame, and the integrated pressure relief and filtering device is detachably sealed to the top wall of the water tank through the sealing ring.

[0044] In one or some embodiments, the guide wings are arranged on both sides of the frame.

[0045] In one or some embodiments, one end of the guide wing extends along the depth direction of the skeleton to the rear end surface, and the other end of the guide wing extends along the depth direction of the skeleton to the middle of the skeleton.

[0046] Compared with the prior art, the technical effects and advantages of the present invention are:

[0047] The application is a pressure relief and filtration integrated device for a water tank which can continuously take in and discharge water, and is installed in the water tank to make the liquid in the cavity of the water tank flow out of the cavity after filtration. The device can effectively balance the pressure in the water tank and reduce the adverse effects caused by the increase of the pressure in the water tank. The pressure relief and filtration integrated device for the water tank which can continuously take in and discharge water has a pressure balance mechanism which communicates the cavity with the outside. The pressure relief mechanism includes a pressure relief port and a pressure relief channel which communicates with the pressure relief port. The pressure relief channel is provided with two pre-pressure relief ports which respectively communicate with the cavity and a pre-pressure relief port control assembly which controls one of the two pre-pressure relief ports to communicate with the pressure relief port through the pressure relief channel. The pre-pressure relief port control assembly includes a pressure relief channel and two pressure relief control switches which communicate with the pressure relief channel. In use, the water tank which can continuously take in and discharge water is in a moving state and basically will not be in a horizontal state for a long time. When the two pressure relief control switches are not in the same horizontal line, one of the pressure relief control switches is in a closed state, which will inevitably make one of the pre-pressure relief ports communicate with the cavity through the pressure relief channel, so that the pressure in the cavity can be released to balance the pressure in and outside the circulating cleaning container and effectively reduce the negative effects caused by the unbalanced pressure in the circulating cleaning container. Even when the water tank which can continuously take in and discharge water is in a horizontal state, at this time, the two pressure relief control switches are in the same horizontal line, one of the pressure relief control switches can be opened by the liquid in the cavity under the action of inertia, which will inevitably make one of the pre-pressure relief ports communicate with the cavity through the pressure relief channel, so that the pressure in the cavity can be released to balance the pressure in and outside the circulating cleaning container and effectively reduce the negative effects caused by the unbalanced pressure in the circulating cleaning container. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings without exceeding the scope of the present application.

[0049] Figure 1 The exploded view of the water tank which can continuously take in and discharge water.

[0050] Figure 2 The Figure 1 The plan view along the A-A direction.

[0051] Figure 3 The perspective view of the water tank body from one angle.

[0052] Figure 4 The perspective view of the water tank body from another angle.

[0053] Figure 5 The Figure 2 The local enlarged view of the structure in the B part.

[0054] Figure 6 It is a three-dimensional diagram of the integrated pressure relief and filtration device.

[0055] Figure 7 This is an exploded view of the pressure relief and filtration integrated device.

[0056] Reference numerals:

[0057] Water tank bayonet assembly 1, bayonet end plate 10, sealing plate 11,

[0058] Water tank body assembly 2,

[0059] Water tank body 20, abutment surface 201, clamping rib 202,

[0060] The bayonet portion 21, the first step end surface 210, the clean water channel 211, the sewage channel 212, the sewage side inlet channel 2121, the sewage pipe interface 2122, the sewage channel wall 2123, the exhaust channel 213, the fastening screw blind hole 214, the second step end surface 215, the third step end surface 216, the fourth step end surface 217, the central solid portion 218, the bayonet portion bottom wall 219,

[0061] Pressure relief and filtration integrated device 3.

[0062] Filter assembly 30, water outlet interface 301, exhaust interface 302, guide wing 303, filter net 304,

[0063] Pressure relief component 31, limiter 315, pre-pressure relief port 316, pressure relief notch 318,

[0064] Pressure relief rear section channel 317, exhaust valve installation step 3171, pressure relief rear section channel inlet 3172, pressure relief rear section channel component 3173,

[0065] Elastic sleeve 32, gravity ball 33, exhaust duckbill valve 34, sealing ring 35,

[0066] Water tank cover assembly 4,

[0067] 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

[0068] 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.

[0069] It should be understood that, in the embodiments of the present application, all directional terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product of the present application is used, are only for the convenience of simplifying the description of the present application, and do not mean or imply that the device, element or component must have a specific orientation and a specific orientation configuration, and should not be understood as a limitation on the present application. It is only used to explain the relative positional relationship, motion condition, etc. between the components shown in the drawings, and when the specific attitude changes, the directional indication may also change accordingly.

[0070] In addition, in the present application, the ordinal numbers such as "first", "second", etc. are only for distinguishing purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the "first" and "second" features can be explicitly or implicitly and at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, i.e. two or more, unless otherwise explicitly limited; the meaning of "at least one" is one or more.

[0071] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed", etc. should be understood broadly, for example, the positional relationship between the components can be relatively fixed, or there can be a physically fixed connection between the components, which can be detachable or integrated structure; it can be mechanical connection or electrical signal connection; it can be directly connected or indirectly connected through intermediate media or components; it can be the internal communication of two elements or the interaction relationship between two elements, unless the specification explicitly limits it, and it cannot be understood as other understanding that can achieve the corresponding function or effect. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0072] If the controller, control circuit involved in the present application is the conventional control technology or unit of those skilled in the art, such as the control circuit of the controller can be realized by the ordinary skilled in the art using existing technology, such as simple programming. The software or program involved in the control result realized by cooperating with the hardware, such as the software or program control process not described in detail in the specification, belongs to the use of existing technology or the conventional technology of ordinary skilled in the art. The power supply also uses the existing technology in the art, and the main technical point of the present application is the improvement of the mechanical device, so the specific circuit control relationship and circuit connection of the present application are not described in detail.

[0073] 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.

[0074] 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.

[0075] The solution of this application will be described in detail below with reference to the accompanying drawings.

[0076] Figure 1-Figure 7 As shown, a schematic diagram of a pressure relief and filtration integrated device for a water tank that can continuously inlet and outlet water.

[0077] Specifically, if Figure 1 、 Figure 2 、 Figure 3 As shown, the water tank for the cleaner with continuous water inlet and outlet comprises a cylindrical water tank body assembly 2 with an open large end and a closed small end and a cavity, a water tank bayonet assembly 1 installed on the small end face of the water tank body assembly 2, a pressure relief and filtering integrated device 3 slidably engaged in the water tank body assembly 2, and a water tank cover assembly 4 covering the large end opening of the water tank body assembly 2 (not marked in the figure), wherein the water tank body assembly 2 comprises a bayonet portion 21 arranged on the small end face of the water tank body assembly 2 (not marked in the figure) for allowing liquid to enter and exit the cavity, the bayonet portion 21 is provided with a clean water channel 211, a sewage channel 212 and an exhaust channel 213, and the pressure accumulated in the cavity can be discharged through the pressure relief and filtering integrated device The device 3 is discharged out of the water tank along the exhaust channel 213 provided on the bayonet portion 21. The water tank bayonet assembly 1 is further detachably fastened to the bayonet portion 21 by screws. The water tank bayonet assembly 1 can further prevent the liquid contained in the cavity from leaking to other parts of the cleaner during operation. The parts of the water tank bayonet assembly 1 are also conveniently removed from the body of the cleaner (not shown in the figure) when the liquid in the cavity needs to be replaced. After removal, the entire water tank can still allow the clean water channel 211, sewage channel 212 and exhaust channel 213 in the bayonet portion 21 to be automatically closed, so that the entire water tank can still be leak-proof when the liquid in the cavity is replaced.

[0078] Specifically, if Figure 2 、 Figure 4As shown, the water tank body assembly 2 includes a water tank body 20 with a cylindrical shape, a large end open and a small end closed and with a cavity, and a bayonet portion 21 that closes the cavity at the small end of the water tank body 20. The water tank body 20 and the bayonet portion 21 are integrally formed. The side wall (not marked in the figure) of the water tank body 20 has a single structure relative to the end wall (not marked in the figure) of the bayonet portion 21, but the formed wall thickness is consistent. The bayonet portion 21 is provided with a multi-layer wall thickness structure (not marked in the figure) in the depth direction of the cylindrical water tank body 20. Specifically, as Figure 2 、 Figure 4 As shown, the multi-layer wall thickness structure of the bayonet portion 21 includes a first step end face 210 abutting against one side end face of the bayonet plate 10 of the water tank bayonet assembly 1, a second step end face 215 abutting against one side end face of the bayonet sealing pad 11 of the water tank bayonet assembly 1, a third step end face 216 of a sewage channel surrounding wall 2123 enclosing a sewage channel and parallel to the second step end face 215, and a fourth step end face 217 abutting against one end face of the pressure relief filter assembly 3 pointing to the water tank bayonet assembly 1. This design can enhance the ability of the bayonet portion 21 to resist external impacts while ensuring the rigidity of the entire water tank body, and can also ensure that the large end opening (not shown in the figure) of the water tank body 20 can easily open / close the water tank cover assembly 4. Figure 3 、 Figure 4 As shown, the bottom of the cylindrical body (not marked in the figure) where the water tank body 20 and the cleaner body (not marked in the figure) meet is in a straight state, and two abutment surfaces 201 are provided along the waist portion (not marked in the figure) that is inclined upward along the straight bottom. The abutment surfaces 201 of the water tank body 20 and the straight bottom and the inclined waist portion connecting the two are in contact with the cleaner body. Figure 4 As shown, the inner side wall of the water tank body 20 is provided with two clamping ribs 202 parallel to the axis of the water tank body 20 for slidingly clamping the pressure relief filter assembly 3. One end of the clamping rib 202 extends along the depth direction of the water tank body 20 to the large end opening of the water tank body 20, and the other end of the clamping rib 202 extends along the depth direction of the water tank body 20 to the middle of the water tank body 20.

[0079] like Figure 2 As shown, combined Figure 1 、 Figure 3 、 Figure 4Taken together, the end face of the sewage channel 212 of the bayonet portion 21 is provided with an abutment 131, and the abutment 131 is provided with a chamfer at one end facing the outside of the water tank body 20, and a double-layer connecting ring wall (not marked in the figure) that is not conductive to the outside. The hollow part of the double-layer connecting ring wall is just clamped with a spring 132. The end face of the sewage channel 212 of the bayonet portion 21 is also provided with a sewage channel surrounding wall 2123 that is closed and abutted with the outer ring wall of the abutment 131. The sewage channel surrounding wall 2123 is provided with a ring wall corresponding to the inner ring wall of the abutment 131 on the part of the third step surface (not marked in the figure). The other end of the spring 132 is clamped on the ring wall, and the abutment 131 clamps and connects a spring 132 to form a complete elastic abutment assembly 13. The outer annular wall of the abutment 131 (not marked in the figure), the sewage channel surrounding wall 2123, the central solid part 218 of the bayonet part 21, and the inner wall corresponding to the sewage channel 212 (not marked in the figure) together enclose a sewage side inlet channel 2121. The entrance of the sewage channel 212 is the sewage outlet 102 of the water tank bayonet assembly 1 that is exposed when the abutment 131 is compressed by external force. The outlet of the sewage channel 212 is the sewage pipe interface 2122. The part of the sewage channel 212 between the sewage outlet 102 and the sewage pipe interface 2122 is called the sewage side inlet channel 2121. In order to allow the sewage returned through the return pipe (not shown in the figure) to reach a deeper position in the water tank, a sewage pipe (not shown in the figure) can be plugged into the sewage pipe interface 2122, so that the sewage returned to the water tank can more fully contact the pressure relief filter assembly 3 and be filtered into clean water before being sent out of the water tank again. The sewage inlet 102, the sewage side inlet channel 2121, the sewage pipe interface 2122 and the sewage pipe (not shown in the figure) together form the entire sewage channel 212. The elastic abutment assembly 13 includes an abutment member 131 and a spring 132. When the abutment member 131 is pressed by an external force, the abutment member 131 compresses the spring 132, thereby opening the sewage channel 212.

[0080] like Figure 6 、 Figure 7 As shown, combined Figure 1 、 Figure 2 、 Figure 4Taken together, the pressure relief and filtration integrated device 3 slides and engages within the water tank body assembly 2. It includes a filter assembly 30, one end of which abuts the bottom wall 219 of the bayonet portion of the water tank body assembly 2 and the other end of which leaves a gap with the water tank cover assembly 4, and a pressure relief assembly 31 disposed within the filter assembly 30 and having the function of regulating the pressure within the water tank. The frame of the filter assembly 30 (not shown in the figure) and the pressure relief assembly 31 are detachably connected. The different names used here are only to better reflect the functions of each part. Any variation and adjustment of the technical solutions described above and below are within the scope of protection of this application. The frame of the filter assembly 30 is a long box-shaped frame. The front and rear end walls of the long box-shaped frame are solid walls. A water outlet interface 301 and an exhaust interface 302 are provided on the front face that abuts the bottom wall 219 of the bayonet portion of the water tank body assembly 2. A handle (not shown in the figure) is provided at the lower portion of the other end wall opposite to the end wall to facilitate sliding and removing the entire pressure relief and filtration integrated device 3 from the water tank body assembly 2. The top of the long box-shaped frame is open, and a circle of slots (not shown) are provided on the top of the long box-shaped frame to elastically engage the sealing ring 35. The pressure relief and filtration integrated device 3 is detachably sealed with the top wall of the water tank body assembly 2 through the sealing ring 35. In addition to the two end walls, the other two side walls and the bottom wall of the long box-shaped frame are provided with a large number of hollow areas (not shown in the figure). Figure 7 As shown, the outer walls of the two side walls and bottom wall of the long box-shaped frame are equipped with filter screens 304 to cover the hollowed-out areas. Sewage entering the water tank cavity through the sewage channel 212 is filtered by the filter screen 304 and enters the integrated pressure relief and filtration device 3, becoming "sub-clean water". It is then discharged from the water tank cavity through the water outlet interface 301 of the integrated pressure relief and filtration device 3 and the clean water channel 211. Guide wings 303 are respectively provided on the two side walls of the frame of the filter assembly 30. The guide wings 303 slidably abut against the engaging ribs 202 of the water tank body assembly 2. One end of the guide wing 303 extends along the depth direction of the frame of the filter assembly 30 to the rear end surface of the frame of the filter assembly 30 where the water outlet interface 301 and the exhaust interface 302 are not provided. The other end of the guide wing 303 extends along the depth direction of the frame of the filter assembly 30 to the middle of the depth direction of the frame.

[0081] As a further improved implementation method, as needed, Figure 5 、 Figure 6 、 Figure 7As shown, the pressure relief component 31 and the frame of the filter component 30 are integrally formed. The pressure relief component 31 is an "I"-shaped structure connecting the front end face (not marked in the figure) of the frame provided with the water outlet interface 301 and the exhaust interface 302 and the rear end face (not marked in the figure) not provided with the water outlet interface 301 and the exhaust interface 302. The "I"-shaped structure is provided with a pressure relief groove (not marked in the figure) for accommodating the pressure regulating device on the upper surface facing the water tank body component 2. The root of the pressure relief groove connecting the front end face and the rear end face of the "I"-shaped structure is provided with four pressure relief notches 318, and four clamping ribs (not marked in the figure) extend from the two walls of the pressure relief groove slightly away from the pressure relief notch 318. (not marked), a removable elastic sleeve 32 is connected to the card interface. A pre-pressure relief hole (not marked in the figure) is provided on the elastic sleeve 32 parallel to the axis of the pressure relief groove. The opening of the pre-pressure relief hole pointing to the two pressure relief notches 318 is a pre-pressure relief port 316. Two limiters 315 extend upward from the bottom of the pressure relief groove at two locations in the pressure relief groove, approximately 1 / 3 and 2 / 3 of the length of the pressure relief groove. A gravity ball 33 is placed between the two elastic sleeves 32 and the two limiters 315 in the pressure relief groove. Under the action of gravity, the gravity ball 33 can be used to block the pre-pressure relief hole and is restricted to movement only in the pressure relief groove between the elastic sleeve 32 and the two limiters 315. The gravity ball 33, the elastic sleeve 32, the limiters 315, and the pressure relief groove together form a complete pressure relief control assembly (not marked in the figure) with two sets of independent pressure relief control switches (not marked in the figure).

[0082] As a further improved implementation, as needed, the bottom of the pressure relief groove is provided with an inclined surface (not marked in the figure) that moves the gravity ball toward the pre-pressure relief through hole and a flat surface (not marked in the figure) connecting the bottom of the inclined surface and parallel to the pre-pressure relief through hole.

[0083] like Figure 6 、 Figure 7As shown, a pressure relief rear section channel 317 is provided in the middle of the pressure relief groove, close to one side wall, extending downward from the top of the pressure relief groove. In the height direction of the pressure relief filter assembly 3, the pressure relief channel extends to the bottom wall of the filter assembly 30 frame, then turns 90 degrees toward the front face where the water outlet port 301 and the exhaust port 302 are provided, then continues to extend toward the front face and connects to the exhaust port 302 on the front face. A downwardly recessed exhaust valve mounting step 3171 is provided at the beginning of the pressure relief groove top. A pressure relief rear section channel inlet 3172 is provided at the center of the exhaust valve mounting step. A tubular member connecting the pressure relief rear section channel inlet 3172 and the exhaust port 302, making a 90-degree turn and enclosing the entire pressure relief rear section channel 317 is referred to as a pressure relief rear section channel member 3173. The exhaust valve installation step 3171 at the starting point of the pressure relief groove on the rear section of the pressure relief channel 317 forms a gap between the pressure relief groove and the rear section of the pressure relief channel 317 , which just connects the pressure relief groove and the rear section of the pressure relief channel 317 .

[0084] like Figure 6 、 Figure 7 As shown, the pressure to be released in the water tank first enters the pressure relief filter assembly 3 through the filter mesh 304 set on both sides and the bottom of the frame of the filter assembly 30, and then continues to enter the pressure relief groove through the four pressure relief notches 318. One of the two gravity balls 33 blocks the pre-pressure relief through hole in the corresponding elastic sleeve 32, and at the same time, the other gravity ball 33 opens the pre-pressure relief through hole in the corresponding elastic sleeve 32. After the pressure to be released exceeds the limit portion 315 corresponding to the gravity ball 33 corresponding to the opened pre-pressure relief through hole, it continues to enter the pressure relief channel entrance 3172 along the notch on the side wall of the pressure relief groove, and then follows the pressure relief channel 317 all the way to the exhaust interface 302, and then is discharged out of the water tank through the exhaust port 103 of the water tank bayonet assembly 1. The pressure relief notch 318, the pressure relief groove, and the pressure relief back section channel together form a complete pressure relief channel.

[0085] like Figure 7 As shown, as a further improved implementation method, an exhaust duckbill valve 34 can be further provided at the exhaust valve installation step 3171. The one-way conduction characteristic of the exhaust duckbill valve 34 can be utilized to effectively prevent the external pressure of the water tank from flowing back into the pressure relief groove through the pressure relief rear section channel 317.

[0086] Specifically, if Figure 5 、 Figure 6 、 Figure 7As shown, when in use, the water tank is in motion and basically will not be in a horizontal state for a long time. When the two pressure relief control switches are not in the same horizontal line, one of the pressure relief control switches is in the closed state, which will inevitably cause a pre-pressure relief port 316 to connect to the water tank cavity, so that the pressure in the cavity can be released, thereby balancing the pressure inside and outside the water tank, effectively reducing the negative impact of the pressure imbalance in the water tank; even when the circulating cleaning container is in a horizontal state, at this time the two pressure relief control switches are in the same horizontal line, one of the pressure relief control switches can be opened by the inertia of the liquid in the cavity, which will inevitably cause a pre-pressure relief port 316 to connect to the cavity, so that the pressure in the cavity can be released, thereby balancing the pressure inside and outside the circulating cleaning container, effectively reducing the negative impact of the pressure imbalance in the circulating cleaning container. The pressure relief control switch includes a gravity ball 33, an elastic sleeve 32 that can limit the movement of the gravity ball 33, a pre-pressure relief through hole set in the elastic sleeve 32, and a limiter 315 that limits the movement position of the gravity ball 33.

[0087] When the car washing device uses a cleaning roller for continuous cleaning, during the automatic cleaning process of the cleaning roller, some of the air contained in the gaps in the cleaning sponge layer of the cleaning roller is generated when the cleaning roller is squeezed and enters the cleaning fluid circuit along with the squeezed water, causing the circuit pressure to increase, resulting in low circuit liquid transportation efficiency. In severe cases, the pressure accumulated in the cleaning fluid circuit will "break open" the sealing structure of the joints, junctions and other parts in the delivery pipeline, causing the cleaning fluid circuit to "leak", seriously affecting the performance of the car washing device.

[0088] Specifically, if Figure 5 、 Figure 6 、 Figure 7 As shown, since the gravity ball 33 can move freely within the pressure relief tank, the two pressure relief control switches are set on the same horizontal line. When the two pressure relief control switches are parallel to the horizontal plane, theoretically, both pressure relief control switches may be in the closed state, the open state, or one closed and the other open. Since the water tank may only produce pressure increase when it is in use, and the water tank is in a state of motion during use, it is impossible to keep both pressure relief control switches in a horizontal state for a long time at the same time. In this way, only one of the two pressure relief control switches will be in the open state and the other will be in the closed state. This ensures that during use, at least one pre-pressure relief port 316 is connected to the outside of the water tank through the pressure relief rear section channel 317 and the exhaust channel 213, thereby achieving a pressure balance inside and outside the water tank.

[0089] As a further improved embodiment, in order to better ensure that the pressure balance can be achieved when the two pressure relief control switches are at the same level, the bottom of the pressure relief groove is provided with a slope (not marked in the figure) for moving the gravity ball 33 to the direction of the pre-pressure relief port 316 and a flat horizontal surface (not marked in the figure) connecting the bottom of the slope and the pre-pressure relief port 316. When the two pressure relief control switches are at the same level, even if the gravity ball 33 makes the pre-pressure relief port 316 not conductive, the gravity ball 33 of one of the pressure relief control switches can be knocked away by the liquid in the water tank under the action of inertia, and it is more likely to make the gravity ball 33 leave the closing position of the pre-pressure relief port 316. Thus, one pre-pressure relief port 316 is necessarily connected to the water tank through the pressure relief rear channel 317, so that the pressure in the water tank can be released, thereby balancing the pressure inside and outside the water tank.

[0090] According to the needs, Figure 5 、 Figure 6 、 Figure 7 As shown, the elastic sleeve 32 can effectively reduce the noise generated by the impact of the gravity ball during movement, and the elastic sleeve 32 is made of silicone or other elastic materials. The elastic sleeve 32 adopts a horn-shaped structure (not marked in the figure), which can achieve better switch effect.

[0091] When the water tank needs to be replaced, or the pressure relief and filtration integrated device 3 in the water tank needs to be deeply cleaned, the water tank is separated from the body of the cleaner by external force, and then the liquid in the water tank is poured and new liquid is injected. Alternatively, the entire water tank cover assembly 4 is further pulled out, and the pressure relief and filtration integrated device 3 is further taken out by sliding the handle on the pressure relief and filtration integrated device 3 to the outside for deep cleaning, and then installed back. Finally, the water tank cover assembly 4 is covered on the water tank body assembly 2 by external force, thereby completing the replacement of the cleaning liquid or the deep cleaning of the pressure relief and filtration assembly 3.

[0092] The embodiments of the present application are described in detail above, and specific examples are applied to the principles and implementation modes of the present application. The above embodiment description is only used to help understand the method and core idea of the present application. Meanwhile, changes or deformations made by those skilled in the art based on the ideas of the present application, the specific implementation modes and application scope of the present application all belong to the scope of protection of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A pressure relief and filtration integrated device, which is slidably engaged with the interior of a water tank capable of continuously circulating and filtering water in and out, wherein the water tank has a bayonet portion, characterized in that: The integrated pressure relief and filtration device includes: The filter assembly has a frame, the front and rear end walls of the frame are solid walls, and the front end wall that abuts against the bottom wall of the bayonet portion of the water tank is provided with a water outlet interface and an exhaust interface; The pressure relief assembly is provided with a pressure relief channel, one end of which is connected to the exhaust interface and abuts against the inner wall of the clamping end face of the water tank; The sewage sent back to the water tank is fully contacted with the filter component and filtered into clean water, which can be sent out of the water tank again.

2. The integrated pressure relief and filtration device according to claim 1, characterized in that: water tank include: The water tank body assembly includes a cylindrical water tank body with an open large end and a closed small end and a cavity, and a bayonet portion at the small end of the water tank body that closes the cavity. The liquid in the cavity flows out of the cavity after being filtered. The bayonet portion is provided with a clean water channel, a sewage channel, and an exhaust channel. The water tank bayonet assembly is mounted on the small end surface of the water tank body and is detachably fastened to the bayonet portion by screws; The integrated pressure relief and filtration device is slidably engaged in the water tank body; The pressure accumulated in the cavity can be discharged out of the water tank through the pressure relief and filtering integrated device along the exhaust channel provided on the bayonet part; Preferably, the bottom of the cylindrical body where the water tank body and the cleaner body meet is in a flat state, and two abutment surfaces are provided along the waist portion that is inclined upward along the flat bottom, and the abutment surfaces, the flat bottom, and the waist portion connecting the two are in abutment with the cleaner body together; Preferably, two clamping ribs are provided inside the water tank for sliding engagement of the integrated pressure relief and filter device. The two clamping ribs are parallel to the axis of the water tank body. One end of the clamping rib extends along the depth direction of the water tank body to the large end opening of the water tank body, and the other end of the clamping rib extends along the depth direction of the water tank body to the middle of the water tank body. Preferably, the bayonet portion is provided with a multi-layer wall thickness structure in the depth direction of the cylindrical water tank body, and guide wings that can be slidably engaged on the engaging ribs are provided on both sides of the integrated pressure relief and filtering device; Preferably, the multi-layer wall thickness structure includes: The first step end surface abuts against one end surface of the bayonet plate of the water tank bayonet assembly, The second step end surface abuts against one end surface of the bayonet sealing pad of the water tank bayonet assembly, The sewage channel wall surrounding the sewage channel is parallel to the third step end face of the second step end face, and a fourth step end surface abutting against an end surface of the pressure relief filter assembly pointing toward the water tank bayonet assembly; Preferably, an abutment is provided on the end face of the sewage channel of the bayonet portion, one end of the abutment facing the outside of the water tank body is provided with a chamfer, and the other end is provided with a double-layer connecting ring wall that is not conductive to the outside, and the hollow portion of the double-layer connecting ring wall is just clamped with a spring, and the end face of the sewage channel of the bayonet portion is also provided with a sewage channel surrounding wall that is closed and abutted with the outer ring wall of the abutment, and the sewage channel surrounding wall is provided with a ring wall corresponding to the inner ring wall of the abutment on the portion of the third step surface, and the other end of the spring is clamped on the ring wall, and the abutment clamps and clamps a spring to form a complete elastic abutment assembly; Preferably, the inlet of the sewage channel is the sewage port of the water tank bayonet assembly exposed when the abutment is compressed by an external force, the outlet of the sewage channel is the sewage pipe interface, and the portion of the sewage channel between the sewage port and the sewage pipe interface is the sewage side inlet channel. The outer annular wall of the abutment, the surrounding wall of the sewage channel, the central solid portion of the bayonet portion, and the inner wall corresponding to the sewage channel together enclose the sewage side inlet channel. Preferably, in order to allow the sewage returned through the return pipe to penetrate deeper into the center of the water tank, a sewage pipe can be inserted at the sewage pipe interface. The sewage outlet, sewage side inlet channel, sewage pipe interface and sewage pipe together form the entire sewage channel. The elastic abutment assembly includes an abutment and a spring. When the abutment is pressed by external force, the abutment compresses the spring, thereby opening the sewage channel.

3. The integrated pressure relief and filtration device according to claim 2, characterized in that: The pressure relief assembly is detachably connected to the frame at one end of the filter assembly and inside the filter assembly; Preferably, the water tank further comprises: The water tank cover assembly, the other end of the filter assembly and the water tank cover assembly leave a gap; Preferably, the water tank body and the bayonet portion are integrally formed, and the bayonet end surface of the water tank is provided with a water inlet, a water outlet and an exhaust port, and the pressure is discharged out of the water tank through the exhaust port of the water tank bayonet assembly; Preferably, after removal, the entire water tank can still allow the clean water channel, sewage channel and exhaust channel in the bayonet portion to be automatically closed.

4. The integrated pressure relief and filtration device according to claim 2, wherein: The pressure relief assembly includes a pressure balancing mechanism that can communicate with the inside and outside of the cavity, and the pressure balancing mechanism includes a pressure relief port and a pressure relief channel connected to the pressure relief port; Preferably, the pressure relief channel is provided with two pre-pressure relief ports respectively connected to the cavities and a pre-pressure relief port control assembly respectively controlling one of the two pre-pressure relief ports to be connected to the pressure relief port through the pressure relief channel, the pre-pressure relief port control assembly comprising a pressure relief channel and two pressure relief control switches connected to the pressure relief channel; When the two pressure relief control switches are not on the same horizontal line, one of the pressure relief control switches is in the closed state; When the two pressure relief control switches are on the same horizontal line, one of the pressure relief control switches may be opened by the liquid in the cavity under the action of inertia.

5. The integrated pressure relief and filtration device according to claim 4, characterized in that: The water tank bayonet assembly also includes a bayonet plate and a bayonet sealing pad. The pressure balancing mechanism is connected to a filter assembly provided with an exhaust interface. When the pressure relief port of the pressure balancing mechanism is connected to the exhaust interface of the filter assembly, part of the pressure relief channel is formed.

6. The integrated pressure relief and filtration device according to claim 4, characterized in that: The pressure relief control switch includes two movable gravity balls, two limit parts for limiting the movement of the gravity balls, and two elastic sleeves that can be blocked by the gravity balls and contain pre-pressure relief holes; Preferably, the filter assembly and the pressure relief assembly are integrally formed; Preferably, the pressure relief control switch includes an "I"-shaped pressure relief groove connected to the front and rear end walls of the filter assembly, four pressure relief notches are provided at the root where the pressure relief groove is connected to the front and rear end walls of the filter assembly, elastic sleeves are provided at both ends of the pressure relief groove and can be removed upward, two limit portions are provided at two locations of 1 / 3 and 2 / 3 of the length of the pressure relief groove and extend upward from the bottom surface of the pressure relief groove, two gravity balls are provided between the elastic sleeve and the limit portions, and the bottom of the pressure relief groove is provided with an inclined surface for moving the gravity balls toward the pre-pressure relief through hole and a flat surface connecting the bottom of the inclined surface and parallel to the pre-pressure relief through hole; Preferably, a pressure relief rear section channel is provided at the middle of the pressure relief groove, close to one side wall, extending downward from the top of the pressure relief groove to the middle of the height direction of the filter assembly, then turning 90 degrees toward the front wall corner of the filter assembly, and then continuing to extend toward the end face of the front wall of the filter assembly and connected to the exhaust interface on the front face. The pressure relief rear section channel is part of the pressure relief channel; Preferably, the pressure relief rear section channel includes a pressure relief rear section channel component, and the pressure relief rear section channel is provided with a downwardly recessed exhaust valve installation step at the starting point of the top of the pressure relief groove, and the pressure relief rear section channel entrance is provided at the center of the exhaust valve installation step. On the passage of the pressure relief rear section channel, a tubular component connecting the pressure relief channel entrance and the exhaust interface and having a 90-degree corner and surrounding and closing the entire pressure relief rear section channel is the pressure relief rear section channel component, and the exhaust valve installation step at the starting point of the pressure relief groove at the top of the pressure relief groove forms a gap between the pressure relief groove and the pressure relief groove on the pressure relief rear section channel, and the gap just connects the pressure relief groove and the pressure relief rear section channel.

7. The integrated pressure relief and filtration device according to claim 2, wherein: The skeleton is in the shape of a long box, with an open top and hollow sides and bottom. The covers of the side and bottom surfaces of the skeleton are provided with filter nets. The sewage entering the water tank cavity through the sewage channel enters the pressure relief and filtration integrated device under the filtering action of the filter net and becomes "sub-clean water" and then is sent out of the water tank cavity through the clean water channel through the water outlet interface of the pressure relief and filtration integrated device.

8. The integrated pressure relief and filtration device according to claim 2, wherein: A handle is provided at the lower portion of the other end wall opposite to the front end wall of the frame for conveniently sliding the entire integrated pressure relief and filtering device out of the water tank.

9. The integrated pressure relief and filtration device according to claim 2, wherein: A circle of slots for elastically engaging a sealing ring is provided on the top of the frame, and the integrated pressure relief and filtering device is detachably sealed and connected to the top wall of the water tank through the sealing ring.

10. The integrated pressure relief and filtration device according to claim 5, characterized in that: The guide wings are arranged on both sides of the frame; Preferably, one end of the guide wing extends to the rear end surface along the depth direction of the frame, and the other end of the guide wing extends to the middle part of the frame along the depth direction of the frame.

Images