An integrated water tank capable of automatically adjusting pressure and automatically circulating filtration

Abstract

The present invention is applicable to the technical field of cleaning equipment. The present invention discloses an integrated water tank capable of automatically regulating pressure and automatically circulating filtration, which includes a cylindrical water tank body component having an open end and a closed end, a water tank bayonet component installed on the end face of the closed end of the water tank body component, a pressure relief and filtration component slidably engaged within the water tank body component, and a water tank cover component covering the open end of the water tank body component. The water tank body component is provided with a clean water channel, a sewage channel, and an exhaust channel. The pressure accumulated in the cavity can be released from the water tank along the exhaust channel through the pressure relief and filtration component. When the water tank is removed from the cleaner body, the clean water channel, the sewage channel, and the exhaust channel can be automatically closed. During use, the water tank is in a moving state, so it is inevitable that a pre-pressure relief port communicates with the pressure relief channel, so that the pressure in the water tank can be released.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning appliances, and particularly to an integrated water tank capable of automatically regulating pressure and automatically circulating filtration. Background Art

[0002] In daily life, people are used to using cleaners to clean the home environment or daily life and travel items. To ensure the water consumption of the cleaner, the cleaner is usually equipped with a water tank. Currently, some cleaners use a sewage-separation water tank, and some cleaners use a circulating integrated water tank. The sewage-cleaning integrated water tank mainly treats the sewage after cleaning the product and then enters the water tank, thereby improving the repeated recycling of water.

[0003] In addition, since the water tank is generally a sealed container, in order to ensure the normal flow of clean and sewage during operation, the water tank needs to be depressurized. At the same time, the sewage-cleaning integrated water tank usually needs to be provided with a filtering device. Currently, the water tanks with filtering devices on the market generally set the filtering device at the sewage inlet, filter the sewage when the sewage enters, and the filtered water is then used to clean the items or environment to be cleaned through the outlet. The disadvantage of this design is that too many impurities will remain in the filtering device, and it is easy to block the filtering holes after a long time, thereby affecting the filtering effect. And currently, the filtering device is generally installed in the water tank, which is particularly inconvenient to clean. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide an integrated water tank capable of automatically regulating pressure and automatically circulating filtration. The water tank can filter the sewage flowing back into the water tank and release the pressure accumulated in the entire water tank at the same time, reducing the adverse impact on the pipeline pressure of the cleaner when the pressure in the water tank increases.

[0005] To solve the above problems, the present invention provides an integrated water tank capable of automatically regulating pressure and automatically circulating filtration, which is characterized in that it includes a cylindrical water tank body component with an open end and a closed end, a water tank bayonet component installed on the end face of the closed end of the water tank body component, a pressure relief and filtration component slidably engaged in the water tank body component, and a water tank cover component covering the open end of the water tank body component. Among them, the water tank body component is provided with a clean water channel, a sewage channel and an exhaust channel. The pressure accumulated in the cavity can be released from the water tank along the exhaust channel through the pressure relief and filtration component. When the water tank is removed from the cleaner body, the clean water channel, the sewage channel and the exhaust channel can be automatically closed.

[0006] Further, the water tank body component includes a cylindrical water tank body with an open end and a closed end and having a cavity, and a bayonet part closing the cavity at the closed end. The water tank body and the bayonet part are integrally formed, and the bayonet part is provided with a multi-layer wall thickness structure in the depth direction of the water tank body.

[0007] Furthermore, the multi-layer wall thickness structure at least includes a first stepped end surface that abuts against one end surface of the pressure relief and filtration assembly pointing to the bayonet portion, and a second stepped end surface that encloses a sewage channel wall of the sewage channel and is parallel to the first stepped end surface.

[0008] Furthermore, the water tank body assembly is provided with rib plates for the pressure relief and filtration assembly to slide and engage, and guiding wings are provided on both sides of the pressure relief and filtration assembly for sliding and engaging on the rib plates.

[0009] Furthermore, the pressure relief and filtration assembly includes a filtration assembly provided with a water outlet interface and an exhaust interface, and a pressure relief component arranged inside the filtration assembly and connected to the filtration assembly. Among them, one end of the pressure relief channel of the pressure relief component is connected to the exhaust interface and abuts against the inner wall of the bayonet portion.

[0010] Furthermore, the pressure relief component includes a pressure balance mechanism that can communicate the inside and outside of the water tank cavity. The pressure balance mechanism includes a pressure relief port and a pressure relief channel communicated with the pressure relief port. The pressure relief channel is provided with two pre-pressure relief ports respectively communicating with the water tank cavity and a pre-pressure relief port control component for respectively controlling one of the two pre-pressure relief ports to communicate with the pressure relief port through the pressure relief channel.

[0011] Furthermore, the pressure balance mechanism is connected to the filtration assembly provided with the exhaust interface. When the pressure relief port of the pressure balance mechanism is communicated with the exhaust interface of the filtration assembly, it forms a part of the pressure relief channel.

[0012] Furthermore, the pre-pressure relief port control component includes a pressure relief channel and two pressure relief control switches communicated with 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 a closed state. When the two pressure relief control switches are on the same horizontal line, one of the pressure relief control switches can be flushed open by the liquid in the cavity under the action of inertia.

[0013] Furthermore, the pressure relief control switch includes two movable gravity balls, two limiting parts for restricting the moving positions of the gravity balls, and two elastic sleeves that can be blocked by the gravity balls and contain pre-pressure relief through holes.

[0014] Furthermore, the pressure relief control switch includes an "I"-shaped pressure relief groove connected to the front and rear end walls of the filtration assembly. Four pressure relief notches are provided at the roots of the pressure relief groove connected to the front and rear end walls of the filtration assembly. The elastic sleeves are arranged at both ends of the pressure relief groove and can be taken out upward. The two limiting parts are arranged at two positions of 1 / 3 and 2 / 3 of the length dimension of the pressure relief groove and extend upward from the bottom surface of the pressure relief groove. The two gravity balls are arranged between the elastic sleeves and the limiting parts.

[0015] Furthermore, the bottom of the pressure relief groove is provided with an inclined surface for moving the gravity ball towards 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.

[0016] Furthermore, at the middle part of the pressure relief groove, a pressure relief rear section channel is provided close to one side wall. The pressure relief rear section channel extends downward from the top of the pressure relief groove to the middle part in the height direction of the filter assembly, then turns 90 degrees towards the front wall corner of the filter assembly and continues to extend towards the end face of the front wall of the filter assembly and is always connected to the exhaust interface on the front end face. The pressure relief rear section channel is a part of the pressure relief channel.

[0017] Furthermore, the pressure relief rear section channel includes a pressure relief rear section channel member. At the starting point of the pressure relief rear section channel at the top of the pressure relief groove, there is a downwardly concave exhaust valve installation step. The center of the exhaust valve installation step is provided with an inlet of the pressure relief rear section channel. On the passage of the pressure relief rear section channel, the tubular member connecting the inlet of the pressure relief channel and the exhaust interface with a 90-degree corner and surrounding and enclosing the entire pressure relief rear section channel is the pressure relief rear section channel member.

[0018] Furthermore, the filter assembly includes a long box-shaped skeleton with an open top, hollowed-out sides and bottom, and filter nets covering the two sides and the bottom of the long box-shaped skeleton. The guiding wings are arranged on the two sides of the long box-shaped skeleton.

[0019] Furthermore, the front and rear end walls of the long box-shaped skeleton are solid walls. An outlet interface and an exhaust interface are provided on one end wall that abuts against the inner wall of the clamping end face of the water tank. A handle is provided at the lower part of the other end wall opposite to this end wall to facilitate sliding the entire pressure relief and filtration integrated device out of the water tank.

[0020] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0021] The integrated water tank of the present invention that can automatically regulate pressure and automatically circulate and filter includes a water tank body with a cavity, a water tank bayonet assembly installed on the end face of the closed end of the water tank body assembly, a pressure relief and filtration assembly that slidably engages within the water tank body assembly, and a water tank cover assembly that covers the open end of the water tank body assembly. This water tank can filter the sewage flowing back into the water tank while also releasing the pressure accumulated within the entire water tank. When in use, the water tank is in a moving state and is basically not in a horizontal state for a long time. 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. This will inevitably cause one of the pre-pressure relief ports to communicate with the pressure relief channel, enabling the pressure within the cavity to be released, thereby balancing the pressure inside and outside the water tank and effectively reducing the negative impacts caused by unbalanced pressure within the water tank. Even when the circulating cleaning container is in a horizontal state and the two pressure relief control switches are on the same horizontal line at this time, one of the pressure relief control switches can be flushed open by the liquid within the cavity under the action of inertia. This will inevitably cause one of the pre-pressure relief ports to communicate with the pressure relief channel, enabling the pressure within the cavity to be released, thereby balancing the pressure inside and outside the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exceeding the scope of protection required by the present application.

[0023] Figure 1 It is an exploded view of an embodiment of the integrated water tank of the present invention that can automatically regulate pressure and automatically circulate and filter.

[0024] Figure 2 It is Figure 1 A sectional view taken along the A-A direction.

[0025] Figure 3 It is a perspective view of one angle of the water tank body.

[0026] Figure 4 It is a perspective view of another angle of the water tank body.

[0027] Figure 5 It is an exploded view of the bayonet portion.

[0028] Figure 6 It is Figure 2 A partially enlarged schematic diagram of the structure of part B in

[0029] Figure 7 It is a perspective view of the pressure relief and filtration assembly.

[0030] Figure 8 It is an exploded view of the pressure relief and filtration assembly.

[0031] Figure 9 It is an exploded view of the water tank cover assembly.

[0032] Figure 10 It is Figure 2 a partially enlarged schematic view of the water tank cover assembly part in

[0033] Figure 11 a partial schematic view of sewage entering the water tank when the elastic abutting assembly of the sewage channel of the bayonet part is pressed by an external force.

[0034] Reference numerals:

[0035] Water tank bayonet assembly 1,

[0036] Bayonet end plate 10, clean water port 101, sewage port 102, exhaust port 103,

[0037] Bayonet sealing backing plate 11, clean water through port 111, sewage through port 112, exhaust through port 113, two-way piston valve assembly 12, piston valve part 121, spring 122,

[0038] Elastic abutting assembly 13, abutting part 131, spring 132,

[0039] Water tank body assembly 2,

[0040] Water tank body 20, abutting surface 201, clamping rib 202,

[0041] Bayonet part 21, fourth step end face 210, clean water channel 211, sewage channel 212, sewage side inlet channel 2121, sewage pipe interface 2122, sewage channel enclosure 2123, exhaust channel 213, fastening screw blind hole x214, third step end face 215, second step end face 216, first step end face 217, central solid part 218, bayonet part bottom wall 219,

[0042] Pressure relief and filtration component 3,

[0043] Filtration component 30, clean water interface 301, exhaust interface 302, guiding wing 303, filter net 304,

[0044] Pressure relief component 31, limiting part 315, pre-pressure relief port 316, pressure relief notch 318, ]>

[0045] Pressure relief channel 317, exhaust valve installation step 3171, pressure relief channel inlet 3172, pressure relief channel component 3173,

[0046] Elastic sleeve 32, gravity ball 33, exhaust duckbill valve 34, sealing ring 35,

[0047] Water tank cover assembly 4,

[0048] Water tank cover body 40, double-sided abutting step 401, closing outer edge 402, closing sealing strip 403, water injection hole 405, inner edge of water injection hole 406, fastening hole 407, water injection flap mounting groove 408,

[0049] Outer body of water tank cover 41, abutting step 411, decorative cover mounting flange 412, decorative cover 413,

[0050] Water injection flap 42, water injection flap mounting shaft 421, closing sealing flange 422.

[0051] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0052] The following further elaborates in detail the claims of the present invention in conjunction with specific embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts also fall within the scope of protection of the present invention.

[0053] It should be understood that in the description of the embodiments of the present invention, all terms indicating directional indications, such as "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings or the orientation or positional relationship when the product of the present invention is normally placed during use. It is only for the convenience of simplifying the description of the present invention, rather than explicitly or implicitly indicating that the device, element or component must have a specific orientation and a specific orientation structure. It should not be construed as a limitation to the present invention. It is only used to explain the relative positional relationship and movement conditions between the components under the shown drawings. When the specific posture changes, the directional indication may also change accordingly.

[0054] In addition, the ordinal numbers in the present invention, such as "first", "second", etc., are only used for distinguishing purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined by "first" and "second" can explicitly or implicitly include at least one of the technical features. In the description of the present invention, the meaning of "a plurality" is at least two, that is, two or more, unless otherwise clearly defined; the meaning of "at least one" is one or more.

[0055] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be either that the positional relationship between components is relatively fixed, or that there is a physically fixed connection between components. It can be either a detachable connection or an integral structure; it can be either a mechanical connection or an electrical signal connection; it can be either directly connected or indirectly connected through an intermediate medium or component; it can be either the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined in the specification, when other understandings cannot achieve the corresponding functions or effects, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] If the present invention involves controllers and control circuits, they are conventional control technologies or units in the art. For example, the control circuit of the controller can be implemented by those of ordinary skill in the art using existing technologies, such as simple programming. For software or programs that cooperate with hardware to achieve control results, if the description does not provide detailed explanations indicating the control processes of the involved software or programs, they belong to the use of existing technologies or the conventional technologies of those of ordinary skill in the art. The power supply also belongs to the existing technologies in the art, and since the main inventive technical points of the present invention lie in the improvement of mechanical devices, the present invention will not elaborate on the specific circuit control relationships and circuit connections in detail.

[0057] The disclosure of the present invention provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, 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 numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not 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 of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0058] The following describes the preferred embodiments of the present invention 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.

[0059] The following will describe the solution of the present application in detail with reference to the accompanying drawings.

[0060] [[ID=I5]] Figures 1 - 10 As shown, an integrated water tank that can automatically regulate pressure and automatically circulate and filter.

[0061] Specifically, as Figure 1 , Figure 2 ,Figure 3 As shown in the figure, the integrated water tank of the cleaner includes a water tank body assembly 2 with a cylindrical shape, open at the large end and closed at the small end and having 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 filtration assembly 3 slidably engaged within the water tank body assembly 2, and a water tank cover assembly 4 covering the large end opening (not marked in the figure) of the water tank body assembly 2. Among them, the water tank body assembly 2 includes a bayonet portion 21 provided on the small end face (not marked in the figure) of the water tank body assembly 2 for 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. The pressure accumulated in the cavity can be discharged outside the water tank through the exhaust channel 213 provided on the bayonet portion 21 by the pressure relief and filtration assembly 3. The water tank bayonet assembly 1 is further detachably fastened to the bayonet portion 21 by screws. Through the water tank bayonet assembly 1, it is possible to further prevent the liquid contained in the cavity from leaking to other parts of the vehicle cleaner during operation. The components of the water tank bayonet assembly 1 are also convenient for removing the water tank from the cleaner body (not marked in the figure) when it is necessary to replace the liquid in the cavity. After removal, the entire water tank can still automatically close the clean water channel 211, sewage channel 212, and exhaust channel 213 in the bayonet portion 21 to prevent the entire water tank from leaking when replacing the liquid in the cavity.

[0062] Specifically, as Figure 2 、 Figure 4 shown, the water tank body assembly 2 includes a water tank body 20 with a cylindrical shape, open at the large end and closed at the small end and having a cavity, and a bayonet portion 21 closing 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 the same. 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 shown, the multi-layer wall thickness structure of the bayonet portion 21 includes a first stepped end face 217 that abuts against one end face of the pressure relief and filtration assembly 3 pointing to the water tank bayonet assembly 1, and a second stepped end face 216 parallel to the first stepped end face 217 of the sewage channel surrounding wall 2123 that encloses the sewage channel. Such a design can improve the ability of the bayonet portion 21 to resist external impacts while ensuring the rigid strength of the entire water tank body, and can also ensure that the open end (not marked in the figure) of the water tank body 20 can easily open / cover the water tank cover assembly 4.

[0063] As a further improved embodiment, the multi-layer wall thickness structure of the bayonet portion 21 further includes a third stepped end face 215 that abuts against one end face of the bayonet sealing gasket 11 of the water tank bayonet assembly 1, and a fourth stepped end face 210 that abuts against one end face of the bayonet plate 10 of the water tank bayonet assembly 1. Such a design can improve the ability of the bayonet portion 21 to resist external impacts while ensuring the rigid strength of the entire water tank body, and can also ensure that the open end of the water tank body 20 (not marked in the figure) can easily open / close the water tank cover assembly 4.

[0064] As Figure 3 , Figure 4 shown, the cylindrical side bottom (not marked in the figure) of the water tank body 20 where it mates with the cleaner body (not marked in the figure) is in a flat state, and two abutting surfaces 201 are provided on the waist (not marked in the figure) that slopes upward along the flat bottom. The abutting surface 201 of the water tank body 20, the flat bottom, and the sloping waist connecting the two jointly mate and abut against the cleaner body. As Figure 4 shown, two clamping ribs 202 parallel to the axis of the water tank body 20 for slidably clamping the pressure relief and filtration assembly 3 are provided on the inner side wall of the water tank body 20. 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.

[0065] As Figure 2 shown, in combination with Figure 1 , Figure 3 , Figure 4 , Figure 5Taken 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 sent back through the return pipe (not shown in the figure) to reach a more central position of the water tank, a sewage pipe (not shown in the figure) can be plugged into the sewage pipe interface 2122, so that the sewage sent back to the water tank can be more fully in contact with the pressure relief filter assembly 3 and 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 131 and a spring 132. When the abutment 131 is pressed by an external force, the abutment 131 compresses the spring 132, thereby opening the sewage channel 212. Figure 11 As shown, when the abutment 131 of the elastic abutment assembly 13 of the sewage channel 212 of the bayonet portion 21 is pressed by an external force, the abutment 131 further compresses the spring 132, and the inner side wall end surface of the bayonet portion 21 is higher than the chamfered surface and side surface of the abutment 131. Sewage can enter the sewage side inlet channel 2121 through the sewage outlet 102, the inner side wall end surface of the bayonet portion 21 and the gap between the abutment 131, and further enter the water tank cavity and then participate in the filtration cycle.

[0066] like Figure 5As shown, the water tank bayonet component 1 includes a bayonet end plate 10 that can abut against the corresponding interface of the cleaner body (not marked in the figure), and a bayonet sealing cushion plate 11 that plays an elastic sealing role and is sandwiched between the bayonet end plate 10 and the bayonet portion 21. A clear water port 101, a sewage port 102, and an exhaust port 103 are provided on the bayonet end plate 10. A clear water through port 111, a sewage through port 112, and an exhaust through port 113 are provided on the bayonet sealing cushion plate 11. An inner concave step surface (not marked in the figure) that is consistent with the outer edge contour of the bayonet sealing cushion plate 11 is also provided on the bayonet end plate 10. A clear water port eaves (not marked in the figure) extends upward from the step surface along the inner wall of the clear water port 101, and the outer wall of the clear water port eaves can just be clamped to the inner wall of the clear water through port 111; a sewage port eaves (not marked in the figure) extends upward from the step surface along the inner wall of the sewage port 102, and the outer wall of the sewage port eaves can just be clamped to the inner wall of the sewage through port 112; an exhaust port eaves (not marked in the figure) extends upward from the step surface along the inner wall of the exhaust port 103, and the outer wall of the exhaust port eaves can just be clamped to the inner wall of the exhaust through port 113; one end face of the bayonet sealing cushion plate 11 is embedded in the inner concave step surface of the bayonet end plate 10, and the other end elastically abuts against the outer side end face of the bayonet portion 21 of the water tank body 20. The bayonet end plate 10 sandwiching the bayonet sealing cushion plate 11 can be detachably and elastically sealed and installed on the bayonet portion 21 of the water tank body 20 with several fastening screws.

[0067] As Figure 2 shown, in combination with Figure 5 looking at them together, the bayonet end plate 10 installed on the bayonet portion 21 is abutted at the first step surface 210 by the chamfered surface at one end of the piston valve member 121 facing the outside of the water tank body 20. The other end of the piston valve member 121 is provided with a double-layer connecting ring wall that does not conduct outward (not marked in the figure). The hollow part of the double-layer connecting ring wall just clamps a spring 122. Multiple mutually engaging clamping teeth (not marked in the figure) are provided on the outer ring wall of the double-layer connecting ring wall of the piston valve member 121. The other end of the spring 122 just clamps to another piston valve member that is opposite and abuts against the previous piston valve member with clamping teeth. Two relatively clamped piston valve members 121 clamping and engaging a spring 122 just form a complete two-way piston valve assembly 12. As Figure 3 , Figure 4 shown, and then continue to combine Figure 2Let's take a look. On the clear water passage 211 and the exhaust passage 213 of the bayonet part 21, there are two-way piston valve assemblies 12. The chamfered surface of one group of piston valve parts 121 abuts against the bayonet end plate 10 of the bayonet part 21 at the first step surface 210, and the chamfered surface of the other group of piston valve parts 121 abuts against the bottom wall 219 of the bayonet part at the fourth step surface 217. One end of the pressure relief and filtration assembly 3 provided with a clear water interface 301 and an exhaust interface 302 abuts against the bottom wall 219 of the bayonet part. There are two openings (not marked in the figure) on the bottom wall 219 of the bayonet part corresponding to the clear water interface 301 and the exhaust interface 302 respectively. When the piston valve parts 121 at both ends of the two-way piston valve assembly 12 in the clear water passage 211 and / or the exhaust passage 213 are both pressed by external forces or pressure impacts, the corresponding passages of the clear water passage 211 and / or the exhaust passage 213 are opened.

[0068] As Figure 7 , Figure 8 shown, in combination with Figure 1 , Figure 2 , Figure 4 , Figure 6 Let's take a look. The pressure relief and filtration assembly 3 is slidably clamped in the water tank body assembly 2. It includes a filtration assembly 30 with one end abutting against the bottom wall 219 of the bayonet part of the water tank body assembly 2 and the other end leaving a gap with the water tank cover assembly 4, and a pressure relief assembly 31 with the function of adjusting the pressure in the water tank arranged in the filtration assembly 30. The skeleton of the filtration assembly 30 (not marked in the figure) is detachably connected to the pressure relief assembly 31. The skeleton of the filtration assembly 30 is a long box-shaped skeleton. The front and rear end walls of the long box-shaped skeleton are solid walls. A clear water interface 301 and an exhaust interface 302 are provided on the front end wall abutting against the bottom wall 219 of the bayonet part of the water tank body assembly 2. A handle (not marked in the figure) for conveniently sliding the entire pressure relief and filtration assembly 3 out of the water tank body assembly 2 is provided at the lower part of the rear end wall opposite to the front end wall. The top of the long box-shaped skeleton is open. A groove (not marked in the figure) for elastically clamping a sealing ring 35 is provided at the top of the long box-shaped skeleton. The pressure relief and filtration assembly 3 realizes detachable sealing connection with the top wall of the water tank body assembly 2 through the sealing ring 35. A large number of hollow parts (not marked in the figure) are provided on the other two side walls and the bottom wall of the long box-shaped skeleton except for the two end walls. As Figure 8As shown, filter nets 304 are installed on the outer walls of the two side walls and the bottom wall of the long box-shaped skeleton to cover the hollowed-out parts. The sewage that enters the water tank cavity through the sewage channel 212 enters the pressure relief and filtration assembly 3 under the filtration of the filter nets 304 and becomes "secondary clean water", and then is sent out of the water tank cavity through the clean water interface 301 of the pressure relief and filtration assembly 3 via the clean water channel 211. One guiding wing 303 is provided on each of the two side walls of the skeleton of the filtration assembly 30. The guiding wing 303 is slidably abutted against the clamping rib 202 of the water tank body assembly 2. One end of the guiding wing 303 extends along the depth direction of the skeleton of the filtration assembly 30 to the rear end face of the skeleton of the filtration assembly 30 where the clean water interface 301 and the exhaust interface 302 are not provided, and the other end of the guiding wing 303 extends along the depth direction of the skeleton of the filtration assembly 30 to the middle part in the depth direction of the skeleton.

[0069] As Figure 6 , Figure 7 , Figure 8As shown, the pressure relief component 31 and the skeleton of the filtration component 30 are integrally formed. The use of different names here is just to better reflect the functions of each part. Any deformation and adjustment of the technical solutions described in the context are within the protection scope of this application. The pressure relief component 31 is an "I"-shaped structure connecting the front end face (not marked in the figure) with a clear water interface 301 and an exhaust interface 302 and the rear end face (not marked in the figure) without the clear water interface 301 and the exhaust interface 302 of the skeleton. The "I"-shaped structure is provided with a pressure relief groove (not marked in the figure) for accommodating a pressure regulating device on the upper surface facing the water tank body component 2. Four pressure relief notches 318 are provided at the root of the pressure relief groove connecting the front end face and the rear end face of the "I"-shaped structure. Four clamping ribs (not marked in the figure) extend slightly deviating from the pressure relief notches 318 on both walls of the pressure relief groove. An elastic sleeve 32 that can be taken out upward is clamped through this clamping interface. A pre-pressure relief through hole (not marked in the figure) is provided on the elastic sleeve 32 along the axis parallel to the pressure relief groove. The openings of the pre-pressure relief through hole pointing to the two pressure relief notches 318 are pre-pressure relief ports 316. At two positions in the pressure relief groove accounting for about 1 / 3 and 2 / 3 of the length dimension of the pressure relief groove, two limiting parts 315 extend upward from the bottom surface of the pressure relief groove. A gravity ball 33 is placed between each of the two elastic sleeves 32 and the two limiting parts 315 in the pressure relief groove. The gravity ball 33 can be used to block the pre-pressure relief through hole under the action of gravity and is restricted to move only in the pressure relief groove between the elastic sleeve 32 and the two limiting parts 315. The gravity ball 33, the elastic sleeve 32, the limiting part 315, and the pressure relief groove together form a complete pressure relief control component (not marked in the figure) with two sets of independent pressure relief control switches (not marked in the figure). At the middle part of the pressure relief groove, close to one side wall, a pressure relief channel 317 extends downward from the top of the pressure relief groove. In the height direction of the pressure relief and filtration component 3, when the pressure relief channel extends close to the bottom wall of the skeleton of the filtration component 30, it turns 90 degrees towards the front end face with the clear water interface 301 and the exhaust interface 302 and then continues to extend towards the front end face and is always connected to the exhaust interface 302 on the front end face. At the starting point of the pressure relief channel 317 at the top of the pressure relief groove, there is a downward concave exhaust valve installation step 3171. A pressure relief channel inlet 3172 is provided at the center of the exhaust valve installation step. On the path of the pressure relief channel 317, a tubular member connecting the pressure relief channel inlet 3172 and the exhaust interface 302 with a 90-degree corner and surrounding and closing the entire pressure relief channel 317 is called a pressure relief channel member 3173. The notch formed between the exhaust valve installation step 3171 at the starting point of the pressure relief channel 317 at the top of the pressure relief groove and the pressure relief channel on the pressure relief channel 317 just connects the pressure relief groove and the pressure relief channel 317.

[0070] As Figure 7 、 Figure 8As shown, the pressure to be discharged in the water tank first enters the pressure relief and filtration assembly 3 through the filter screens 304 provided on both sides and the bottom surface of the skeleton of the filtration assembly 30, and then continues to enter the lower pressure 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 discharged passes over the limiting 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 inlet 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.

[0071] As Figure 8 shown, as a further improved implementation manner, an exhaust duckbill valve 34 can be further provided at the exhaust valve installation step 3171. By utilizing the one-way conduction characteristic of the exhaust duckbill valve 34, it can effectively prevent the external pressure of the water tank from reversely pouring into the pressure relief groove through the pressure relief channel 317.

[0072] Specifically, as Figure 6 、 Figure 7 、 Figure 8 shown, during use, the water tank 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 on the same horizontal line, one of the pressure relief control switches is in the closed state. In this way, it is inevitable that a pre-pressure relief port 316 communicates with the cavity of the water tank through the pressure relief channel 317, so that the pressure in the cavity can be released, thereby balancing the pressure inside and outside the water tank and effectively reducing the negative impact caused by the unbalanced pressure inside the water tank; even when the circulating cleaning container is in a horizontal state, at this time the two pressure relief control switches are on the same horizontal line, and one of the pressure relief control switches can be opened by the liquid in the cavity under the action of inertia. In this way, it is inevitable that a pre-pressure relief port 316 communicates with the cavity through the pressure relief channel 317, so that the pressure in the cavity can be released, thereby balancing the pressure inside and outside the circulating cleaning container and effectively reducing the negative impact caused by the unbalanced pressure inside the circulating cleaning container. The pressure relief control switch includes a medium gravity ball 33, an elastic sleeve 32 that can limit the movement of the gravity ball 33, a pre-pressure relief through hole provided in the elastic sleeve 32, and a limiting portion 315 that restricts the moving position of the gravity ball 33.

[0073] When the cleaner uses a cleaning roller for continuous cleaning, during the automatic cleaning process of the cleaning roller, when squeezing the cleaning roller, some air contained in the gaps of the scrubbing sponge layer of the cleaning roller enters the cleaning liquid circuit together with the squeezed water, resulting in an increase in the circuit pressure, a low liquid transportation efficiency in the circuit, and in severe cases, the pressure accumulated in the cleaning liquid circuit will "burst open" the sealing structures at joints and connections in the conveying pipeline, leading to "liquid leakage" in the cleaning liquid circuit and seriously affecting the performance of the cleaner.

[0074] Specifically, as Figure 6 , Figure 7 , Figure 8 shown, since the gravity ball 33 can move freely in the pressure relief groove and 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 of the two pressure relief control switches may be in the closed state, open state, or one closed and the other open state. Since the water tank may have an increase in pressure only when in use, and when in use, the water tank is in a moving state and it is impossible to keep the two pressure relief control switches in the horizontal state for a long time simultaneously. In this way, only one of the two pressure relief control switches will be in the open state and the other in the closed state. Thus, it is ensured that during the use process, at least one pre-pressure relief port 316 is communicated with the outside of the water tank through the pressure relief channel 317 and the exhaust port 103, thereby achieving a pressure balance state inside and outside the water tank.

[0075] As Figure 6 shown, as a further improved implementation manner, in order to better ensure pressure balance when the two pressure relief control switches are in the same horizontal plane, the bottom of the pressure relief groove is provided with an inclined plane (not marked in the figure) for moving the gravity ball 33 towards the pre-pressure relief port 316 and a flat horizontal plane (not marked in the figure) connecting the bottom of the inclined plane and the pre-pressure relief port 316. When the two pressure relief control switches are in the same horizontal plane, 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 flushed open by the liquid in the water tank under the action of inertia, and it is inevitable that the gravity ball 33 will leave the closed position of the pre-pressure relief port 316. In this way, it is inevitable that one pre-pressure relief port 316 is communicated with the water tank through the pressure relief channel 317, so that the pressure in the water tank can be released, thereby balancing the pressure inside and outside the water tank.

[0076] As required, as Figure 6 , Figure 7 , Figure 8 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 an elastic material such as silica gel. The elastic sleeve 32 adopts a flared structure, so that a better switching effect can be achieved.

[0077] As Figure 1 , Figure 2 ,Figure 9 , Figure 10 As shown, the integrated water tank of the cleaner further includes a water tank cover assembly 4 covering the open end (not marked in the figure) of the water tank body assembly. The water tank cover assembly 4 includes a water tank cover body 40, a water tank cover outer sleeve body 41 sleeved outside the water tank cover body 40, and a water injection flap 42 installed on the water tank cover body 40.

[0078] Specifically, as Figure 9 , Figure 10 shown, one end of the water tank cover body 40 close to the water tank body assembly 2 is in an open state, and the other end is in a closed state after the water injection flap 42 is covered. A double-sided abutment step 401 is provided at one end of the water tank cover body 40 close to the water tank body assembly 2. The section of the water tank cover body 40 close to the water tank body assembly 2 before the double-sided abutment step 401 is called the covering outer edge 402. An outer wall of the covering outer edge 402 is elastically engaged with a covering sealing strip 403. The covering sealing strip 403 extends outward in a direction pointing to the inner wall of the water tank body assembly 2 with several annular sealing protrusions (not marked in the figure). The water tank cover 4 can be hermetically covered on the water tank body assembly 2 through the covering sealing strip 403. The water tank cover body 40 is sleeved with a water tank cover outer sleeve body 41. The water tank cover outer sleeve body 41 is open at both axial ends of the water tank cover body 40. An abutment step 411 is provided on an inner wall of a sleeved end of the water tank cover outer sleeve body 41. The abutment step 411 abuts against the double-sided abutment step 401 of the water tank cover body 40, and the water tank cover body 40 and the water tank cover outer sleeve body 41 can be detachably connected by screws. In Figure 9At the top of the outer body 41 of the water tank cover shown, the outer body 41 of the water tank cover extends upward with a decorative cover mounting flange 412. Inside the decorative cover mounting flange 412, there is a screw mounting hole seat (not marked in the figure) for vertically and detachably connecting the water tank cover body 40 and the outer body 41 of the water tank cover with screws. Inside the decorative cover mounting flange 412, there is also a buckle (not marked in the figure) for elastically clamping the decorative cover 413. The decorative cover 413 can hide the fastening screws and play a role in beautifying the decoration. On the other end face of the water tank cover body 40 facing away from the water tank body assembly 2, there is a water injection hole 405. Along the inner wall of the water injection hole 405, the water tank cover body 40 extends in the direction pointing to the water tank body assembly 2 with a water injection hole inner edge 406. On the other end face of the water tank cover body 40 facing away from the water tank body assembly 2, there is also a water injection flap mounting groove 408. The water injection flap mounting shaft 421 of the water injection flap 42 can be snap-fitted and installed in the water injection flap mounting groove 408. In the area of the water injection flap 42 corresponding to the water injection hole 405, there is a closing and sealing flange 422 protruding in the direction of the water injection hole. On the closing and sealing flange 422, there are several elastic sealing rings (not marked in the figure). The water injection flap 42 can close the end face of the water tank cover body 40 far from the water tank body assembly 2 through the sealing cooperation between the closing and sealing flange 422 and the water injection hole inner edge 406. When the water tank needs to be filled with water, open the water injection flap 42, and then water can be injected into the water tank through the water injection hole 405. After the water injection is completed, close the water injection flap 42 to prevent the water in the water tank from leaking out through the water injection hole 405.

[0079] As a further improved implementation, as Figure 10 shown, according to needs, on the end face of the water tank cover body 40 far from the water tank body assembly 2, there can also be a fastening hole 407. After the entire water tank is installed and fixed on the body of the vehicle cleaner, it can be further fastened to the fastening hole 407 through a buckle (not marked in the figure) provided on the body of the cleaner, so that the water tank is more stable on the body of the cleaner.

[0080] When the water tank needs to be refilled, or when the pressure relief and filtration component 3 in the water tank needs to be deeply cleaned, use external force to separate the water tank from the body of the cleaner, and then pour out the liquid in the water tank and refill it with new liquid; or, further remove the entire water tank cover assembly 4, and further slide out the pressure relief and filtration component 3 through the handle on the pressure relief and filtration component 3 for deep cleaning and then reinstall it. Finally, use external force again to cover the water tank cover assembly 4 on the water tank body assembly 2 to complete this replacement of the cleaning liquid or the deep cleaning of the pressure relief and filtration component 3.

[0081] The above has introduced the embodiments of the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only for helping to understand the method and its core idea of the present application. At the same time, any changes or deformations made by those skilled in the art based on the idea of the present application, within the specific implementation manner and application scope of the present application, all fall within the scope of protection of the present application. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An integrated water tank capable of automatically adjusting pressure and automatically circulating filtration, characterized in that, Comprising: A water tank body assembly, including a water tank body in a cylindrical shape with a cavity, open ends provided at both ends of the water tank body, a closed end, and a bayonet portion for closing the cavity at the closed end. A clear water channel, a sewage channel, and an exhaust channel are provided therein, and the effective volume of the cavity is not adjustable; A bayonet assembly, installed on the end face of the closed end to prevent the liquid in the cavity from leaking to other parts of the cleaner. The bayonet assembly includes a bayonet end plate and a bayonet sealing gasket. The bayonet end plate is provided with a clear water port, a sewage port, and an exhaust port. The exhaust port is communicated with the outside of the water tank. The bayonet sealing gasket is provided with a clear water through port, a sewage through port, and an exhaust through port. The exhaust through port is communicated with the exhaust channel; A pressure relief and filtration assembly, slidably engaged in the water tank body, including a filtration assembly and a pressure relief assembly. The pressure relief assembly has a pressure relief channel and is arranged inside the filtration assembly and connected to the filtration assembly. One end of the pressure relief channel abuts against the inner wall of the bayonet portion; A water tank cover assembly, covering the open end; Wherein, the pressure accumulated in the cavity is released from the water tank along the exhaust channel through the pressure relief and filtration assembly. When the water tank is removed from the cleaner body, the clear water channel, the sewage channel, and the exhaust channel can be automatically closed.

2. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 1, characterized in that The water tank body and the bayonet portion are integrally formed, and the bayonet portion is provided with a multi-layer wall thickness structure in the depth direction of the water tank body; The bayonet end plate has a concave stepped surface, which can abut against the corresponding interface of the cleaner body; The outer edge contour of the bayonet sealing gasket is consistent with the concave stepped surface. The bayonet sealing gasket is sandwiched between the bayonet end plate and the bayonet portion. One end face of the bayonet sealing gasket is embedded in the concave stepped surface of the bayonet end plate, and the other end elastically abuts against the outer side end face of the bayonet portion; Wherein, a clear water port eaves extends upward from the stepped surface along the inner wall of the clear water port, and the outer wall of the clear water port eaves can just be clamped to the inner wall of the clear water through port; a sewage port eaves extends upward from the stepped surface along the inner wall of the sewage port, and the outer wall of the sewage port eaves can just be clamped to the inner wall of the sewage through port; an exhaust port eaves extends upward from the stepped surface along the inner wall of the exhaust port, and the outer wall of the exhaust port eaves can just be clamped to the inner wall of the exhaust through port.

3. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 2, characterized in that The multi-layer wall thickness structure includes: A first stepped end face, abutting against one end face of the pressure relief and filtration assembly pointing to the bayonet portion; A second stepped end face, surrounding the sewage channel wall of the sewage channel and parallel to the first stepped end face; A third stepped end face, abutting against one side end face of the bayonet sealing gasket; A fourth stepped end face, abutting against one side end face of the bayonet end plate.

4. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 3, characterized in that, The water tank body is provided with ribs for the pressure relief and filtration assembly to slidably engage, and guide wings for slidably engaging on the ribs are provided on both sides of the pressure relief and filtration assembly.

5. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 4, characterized in that, The filtration assembly is provided with a clear water interface and an exhaust interface; one end of the pressure relief channel is connected to the exhaust interface.

6. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 5, characterized in that, The pressure relief assembly includes: A pressure balance mechanism, capable of communicating inside and outside the water tank cavity, including a pressure relief port and a pressure relief channel communicated with the pressure relief port. The pressure relief channel is provided with two pre-pressure relief ports respectively communicating with the cavity and a pre-pressure relief port control assembly for controlling one of the two pre-pressure relief ports to communicate with the pressure relief port through the pressure relief channel.

7. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 6, characterized in that, The pressure balancing mechanism is connected to the filter assembly, and when the pressure relief port of the pressure balancing mechanism is connected to the exhaust port of the filter assembly, a part of the pressure relief channel is formed.

8. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 6, characterized in that, The pre-pressure relief port control assembly includes 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 can be opened by the liquid in the cavity under the action of inertia.

9. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 8, characterized in that, The pressure relief control switch includes: Two movable gravity balls; Two limiting parts limit the movement of the gravity ball; Two elastic sleeves can be blocked by gravity balls and contain pre-pressure relief holes.

10. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 9, characterized in that, The pressure relief control switch includes: The pressure relief groove is in the shape of an "I" character, connected to the front and rear end walls of the filter assembly and provided with four pressure relief notches at the root of the connection. The elastic sleeve is arranged at both ends of the pressure relief groove and can be taken out upward. Two limiting parts are arranged at 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.

11. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 10, wherein The bottom of the pressure relief groove is provided with an inclined surface for moving the gravity ball toward the pre-pressure relief through hole and a flat surface connecting the bottom of the inclined surface and being parallel to the pre-pressure relief through hole.

12. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 10, wherein A rear-section pressure relief channel is provided in the middle of the pressure relief groove close to one side wall. The rear-section pressure relief channel extends downward from the top of the pressure relief groove to the middle of the height direction of the filter assembly, then turns 90 degrees toward the front wall corner of the filter assembly and continues to extend toward the end face of the front wall of the filter assembly and is connected to the exhaust interface on the front end face of the filter assembly. The rear-section pressure relief channel is part of the pressure relief channel.

13. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 12, characterized in that, The pressure relief rear section channel includes a pressure relief rear section channel component. 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. 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.

14. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 5, characterized in that, The filter assembly comprises: A long box-shaped frame, with an open top and hollowed-out sides and bottom, and guide wings arranged on both sides of the long box-shaped frame; The filter screen is covered on both side surfaces and the bottom surface of the long box-shaped frame.

15. The integrated water tank capable of automatically adjusting pressure and automatically circulating filtration according to claim 14, wherein The front and rear end walls of the long box-shaped frame are solid walls. A water outlet interface and an exhaust interface are provided on one end wall that abuts against the inner wall of the clamping end face of the water tank. A handle is provided at the lower part of the other end wall opposite to the end wall for conveniently sliding the entire pressure relief filter assembly out of the water tank body.

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