CN115492972A - Internal and external pressure balancing water tank device - Google Patents

Abstract

The invention is suitable for the technical field of cleaning. The invention discloses an internal and external pressure balancing water tank device, which comprises a water tank body, a water inlet and outlet mechanism and a pressure relief mechanism, wherein the water tank body is provided with a storage cavity for storing liquid, the water inlet and outlet mechanism is arranged on the water tank body and is communicated with the storage cavity after the water tank body is pressed, the pressure relief mechanism can keep the pressure of the water tank balanced, the pressure relief mechanism comprises a pressure relief pipe connected with the water inlet and outlet mechanism, the free end of the pressure relief pipe is provided with a buoyancy component capable of adjusting the air pressure in the water tank body, and a flexible structure is arranged between a water outlet pipe and the buoyancy component of the pressure relief pipe. Because pressure release mechanism can keep the air part in the water tank to communicate with the outside through business turn over water mechanism, when the water tank when pressure appears because of clean in-process, can be defeated the water tank outside with the clear water together to effectively reduce water tank internal pressure, make the inside and outside pressure balance of water tank, avoid the pressure rising phenomenon that produces in the water tank.

Description

Internal and external pressure balancing water tank device

Technical Field

The invention relates to the technical field of cleaning, in particular to an internal and external pressure balancing water tank device.

Background

The continuous washing and wiping are usually needed in the washing and wiping process, so the cleaning efficiency is higher, however, when the washing and wiping stick is adopted for washing and wiping, the sponge is usually adopted on the surface of the washing and wiping stick, sewage is collected after the washing and wiping stick is extruded, meanwhile, extruded air is collected together, the pressure in the liquid collecting cavity is increased, and the problem that the pressure needs to be effectively released is solved.

Disclosure of Invention

The invention mainly solves the technical problem of providing an internal and external pressure balancing water tank device which can avoid the difficulty increase of circulating water entering the water tank caused by the pressure difference between the inside and the outside of the water tank.

In order to solve the technical problem, the invention provides an internal and external pressure balancing water tank device which comprises a water tank body, a water inlet and outlet mechanism and a pressure relief mechanism, wherein the water tank body is provided with a storage cavity for storing liquid, the water inlet and outlet mechanism is arranged on the water tank body and is communicated with the storage cavity after being pressed, the pressure relief mechanism can keep the pressure of the water tank balanced, the pressure relief mechanism comprises a pressure relief pipe connected with the water inlet and outlet mechanism, the free end of the pressure relief pipe is provided with a buoyancy component capable of adjusting the air pressure in the water tank body, and a flexible structure is arranged between the water inlet and outlet mechanism and the buoyancy component.

Further, the buoyancy component comprises a buoyancy ball, and the buoyancy ball can discharge air pressure to the water tank body through the pressure relief pipe.

Further, the buoyancy ball is provided with a branch pipe, one end of the branch pipe extends out of a fixed end of the buoyancy ball and a free end flush with the buoyancy ball, the free end is provided with a first pressure relief opening, and more than one bulge is arranged beside the first pressure relief opening to prevent the first pressure relief opening from being filled with liquid.

Furthermore, a filter screen component is detachably fixed on the plurality of bulges, and the filter screen component covers the first pressure relief opening.

Furthermore, the buoyancy ball is provided with a cavity, and the branch pipe penetrates through the buoyancy ball to enable the cavity to form a closed cavity.

Furthermore, a second pressure relief opening communicated with the first pressure relief opening is formed in the bulge, and the second pressure relief opening can be immersed in liquid and can also float on the liquid level.

Further, the branch pipes are arranged along the diameter direction of the buoyancy ball.

The water inlet and outlet mechanism comprises a mounting seat and a fixed seat arranged in the mounting seat, a clean water output assembly capable of forming a clean water output channel after being pressed and a sewage access assembly capable of forming a sewage input channel after being pressed are respectively arranged on the fixed seat, wherein the clean water output assembly comprises a water outlet thimble structure matched with a through hole in the fixed seat, a jacking spring enabling the water outlet thimble structure to be in a stretching trend, and a limiting component limiting the stretching position of the water outlet thimble structure, and when the water outlet thimble structure is pressed to move, the water outlet thimble structure and the through hole form the clean water output channel.

Furthermore, the water outlet thimble structure comprises a body and a water outlet switch component arranged on the body, wherein a overflowing hole forming a part of the clean water output channel is arranged between the water outlet switch component and the body.

Furthermore, a water outlet sealing structure is arranged between the water outlet switch component and the limiting component.

Furthermore, the water outlet sealing structure comprises a sealing ring fixed on the annular mounting groove, the sealing ring is provided with a notch, and a communicating gap is formed between the notch and the end part of the fixing seat to form a part of the clean water output channel.

Furthermore, the sealing ring is provided with extending parts on two sides in the diameter vertical direction respectively, and a bulge is arranged in the diameter direction and provided with a sealing matching surface.

Further, the sealing mating surface is a bevel.

Furthermore, a guide structure is arranged between the fixed seat and the body.

Further, the guide structure is including locating the guide way of fixing base and locating the gib block of body, or locate the guide way of body and locate the gib block of fixing base, the guide way cooperates with the gib block.

The internal and external pressure balancing water tank device comprises a water tank body provided with a storage cavity for storing liquid, a water inlet and outlet mechanism which is arranged on the water tank body and communicated with the storage cavity after the water tank body is pressed, and a pressure relief mechanism which can keep the pressure of the water tank balanced, wherein the pressure relief mechanism comprises a pressure relief pipe connected with a water outlet pipe, the free end of the pressure relief pipe is provided with a buoyancy component capable of adjusting the air pressure in the water tank body, and a flexible structure is arranged between the water outlet pipe and the buoyancy component. Because pressure release mechanism can keep the air part in the water tank to communicate with the outside through business turn over water mechanism, when the water tank when pressure appears because of clean in-process, can be defeated the water tank outside with the clear water together to effectively reduce water tank internal pressure, make the inside and outside pressure balance of water tank, avoid the pressure rising phenomenon that produces in the water tank.

Drawings

In order to illustrate the embodiments of the invention or the technical solutions in the prior art more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the description only show some embodiments of the invention and therefore should not be considered as limiting the scope, and for a person skilled in the art, other related drawings can also be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of an internal and external pressure equalization water tank device.

Fig. 2 is a schematic structural diagram of an orthographic projection of an embodiment of the internal and external pressure equalizing water tank device along the length direction.

Fig. 3 isbase:Sub>A schematic sectional view of the embodiment of the water tank device in fig. 2 along the directionbase:Sub>A-base:Sub>A.

Fig. 4 is a schematic sectional view of the structure along the direction B-B in fig. 3.

Fig. 5 is an enlarged schematic view of the structure of part C in fig. 4.

Fig. 6 is an enlarged schematic view of a portion D of fig. 5.

Fig. 7 is a schematic diagram of an exploded structure of an embodiment of the water tank device.

Fig. 8 is a schematic view showing a state of use of the liquid tank device.

Fig. 9 is a schematic view showing another state of use of the liquid-containing tank device.

Reference numerals:

an internal and external pressure equalization water tank device 1;

a water inlet and outlet mechanism 10;

a fixed seat 101,

Clear water output assembly 102, water inlet and outlet thimble structure 1021, body 10211, water inlet and outlet switch part 10212, overflowing hole 10213,

A sewage access component 103, a water inlet and outlet thimble structure 1031, a body notch 10311,

A mounting seat 104, a vent hole 1041, a filter component sealing brim 1042, a suction pipe interface 1043, a buckle 1044, a buckle 1045, a guide rib 1046, a pressure relief interface 1047,

A sealing pad 105,

A suction pipe 106,

A top pressure spring 107;

the sealing ring 108, the first extension part 1081, the second extension part 1082, the protrusion 1083 and the gap 1084;

the water tank comprises a water tank body 20, a clamping part 201, a clamping groove 202, an upper body 206 and a lower body 207;

the pressure relief mechanism 30, a pressure relief pipe 301, a buoyancy component 302, a cavity 3021, a fixed end 3022, a branch pipe 3023, a protrusion 3024, and a first pressure relief port 3025;

a filter unit 40 and a filter unit connection port 401;

liquid level H;

the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The following claims of the present invention are further detailed in conjunction with the specific embodiments and the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any inventive work also belong to the protection scope of the present invention.

It should be understood that in the description of the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., indicate orientations or positional relationships based on the orientations, positional relationships, or the orientations or positional relationships that the products of the present invention usually use, which are only used for the convenience of simplifying the description of the present invention, and do not indicate or imply that the devices, elements, or components that are referred to must have specific orientations and specific orientation configurations, and should not be construed as limiting the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.

Furthermore, the use of ordinal terms such as "first", "second", etc., in the present application is for distinguishing between similar elements and not intended to imply or imply relative importance or the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in relation to at least one of the technical features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be fixed relatively, or the components may be physically fixed, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements can be communicated with each other or can be mutually interacted, and unless the specification explicitly defines otherwise, the corresponding function or effect cannot be realized in other understanding manners, and the specific meaning of the terms in the invention can be understood by a person skilled in the art according to specific conditions.

The present invention relates to a controller and a control circuit, which are conventional control techniques or units for those skilled in the art, and the control circuit of the controller can be implemented by those skilled in the art by using conventional techniques, such as simple programming. Software or programs related to the implementation of the control result in cooperation with hardware, such as software or program control procedures related to the implementation of the control result, which are not described in detail in the specification, belong to the technical field of the prior art or the routine of a person with ordinary skill in the art. The power supply also adopts the prior art in the field, and the main inventive technical point of the invention is to improve the mechanical device, so the invention does not explain the specific circuit control relation and circuit connection in detail.

The present disclosure provides many different embodiments or examples for implementing different configurations of the invention. Specific example components and arrangements are described herein for simplicity in describing the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.

As shown in fig. 1-8, the present invention provides an embodiment of an internal and external pressure equalizing water tank device.

The internal and external pressure balancing water tank device 1 comprises a water tank body 20 provided with a storage cavity for storing liquid, a water inlet and outlet mechanism 10 arranged on the water tank body 20 and communicated with the storage cavity after being pressed, and a pressure relief mechanism 30 capable of keeping the pressure of the water tank balanced, wherein the pressure relief mechanism comprises a pressure relief pipe 301 connected with a water outlet pipe (not marked in the figure), the free end of the pressure relief pipe 301 is provided with a buoyancy component 302 capable of adjusting the air pressure in the water tank body, the pressure relief pipe 301 is provided with a flexible structure (not marked in the figure) between the water outlet pipe and the buoyancy component 302, and the flexible structure can ensure that the water tank can float on the liquid level H under the action of the buoyancy component 302 when in any state, so that the part above the liquid level H can be communicated with the outside of the water tank.

Specifically, as shown in fig. 3, 4, 7, 8, and 9, the buoyancy member 302 may be a structure including a buoyancy ball. The buoyancy ball can discharge air pressure to the water tank body through the pressure relief pipe. The buoyancy ball is provided with a branch pipe 3023, one end of the branch pipe 3023 extends out of a fixed end 3022 of the buoyancy ball fixed with the pressure relief pipe 301 and a free end (not shown) flush with the buoyancy ball, the free end is provided with a first pressure relief port 3025, more than one bulge 3024 is arranged beside the first pressure relief port 3025, the bulge 3024 can prevent the first pressure relief port 3025 from being immersed under the liquid level H and floating up for a short time when the water tank is shaken sharply, and then a water film is formed on the first pressure relief port 3025 to prevent the first pressure relief port 3025 from exerting the pressure relief function, and the bulges 3024 are uniformly distributed around the first pressure relief port 3025. The buoyancy ball is provided with a cavity 3021, and the branch pipe 3023 penetrates through the buoyancy ball to form a closed cavity in the cavity 3021. The bulge 3024 is provided with a second pressure relief opening (not shown in the figures) communicated with the first pressure relief opening, the second pressure relief opening can be immersed in liquid and can also float on the liquid level, the sum of the areas of the first pressure relief opening and the second pressure relief opening which can play a role is indirectly designed, and a better pressure relief effect can be achieved. The branch pipe 3023 is arranged along the diameter direction of the buoyancy ball, so that the first pressure relief port 3025 is ensured to be positioned above the liquid level as much as possible.

As a further improved embodiment, a filter net assembly (not shown) may be detachably fixed to the plurality of protrusions 3024 by using the plurality of protrusions 3024 as fixed pivot points, and the filter net assembly covers the first pressure relief port 3025 to prevent the first pressure relief port 3025 from blocking the pressure relief pipe 301 by impurities in the sewage flowing back into the first pressure relief port 3025 after the first pressure relief port 3025 is briefly submerged below the liquid level H and floats up during the rapid sloshing of the tank, thereby preventing the pressure relief function from being performed.

Specifically, as shown in fig. 3, fig. 4, fig. 5, and fig. 6, the water inlet and outlet mechanism includes a mounting seat 104 and a fixing seat 101 disposed in the mounting seat 104, and a clean water output assembly 102 capable of forming a clean water output channel after being pressed and a sewage access assembly 103 capable of forming a sewage input channel after being pressed are respectively disposed on the fixing seat 101, where the clean water output assembly 102 includes a water inlet and outlet thimble structure 1021 cooperating with a through hole (not shown in the drawing) on the fixing seat 101, a push spring 107 for making the water outlet thimble structure 1021 be in an extending trend, and a limiting component or structure 1011 for limiting an extending position of the water inlet and outlet thimble structure 1021, and when the water inlet and outlet thimble structure 1021 is pressed and moved, the water inlet and outlet thimble structure 1021 and the through hole form a clean water channel (not shown in the drawing). Specifically, the position limiting component or structure 1011 is disposed on one side of the through hole. The water inlet and outlet thimble structure 1021 comprises a body 10211 and a water inlet and outlet switch part 10212 extending outwards from the body 10211, wherein a flow through hole 10213 forming a part of a clear water channel is arranged between the water inlet and outlet switch part 10212 and the body 10211. A water inlet and outlet sealing structure is arranged between the water outlet switch component 10212 and the limiting component or structure 1011, the water inlet and outlet sealing structure comprises a sealing ring 108 fixed on an annular mounting groove (not shown in the figure), the sealing ring 108 is provided with a gap 1084, and the gap 1084 and the inner end wall of the fixed seat 101 form a communicating gap to form a part of a clear water channel (not shown in the figure). The two sides of the sealing ring 108 in the diameter vertical direction are respectively provided with an extending portion, i.e. a first extending portion 1081 and a second extending portion 1082, a protrusion 1083 is provided in the diameter direction, the protrusion 1083 is located between the first extending portion 1081 and the second extending portion 1082, the protrusion 1083 is provided with a sealing mating surface (not shown in the drawings), and the sealing mating surface is matched with the limiting component or structure 1011 for sealing.

As a further improved embodiment, the sealing engagement surface is a chamfer.

As shown in fig. 4, 5, and 6, when the inlet/outlet switch element 10212 is compressed inward, the protrusion 1083 is separated from the sealing engagement surface, and the protrusion 1083 and the sealing engagement surface form a gap therebetween, which is communicated with the pressure relief pipe 301 in the tank through the flow hole 10213. Both can be with liquid output, thereby also can effectively reduce water tank internal pressure with the air output in the water tank for the internal and external pressure balance of water tank. The pressure rise phenomenon generated in the water tank is avoided.

Specifically, as shown in fig. 1, fig. 4, fig. 5, and fig. 6, the sewage inlet component 103 has the same structure as the clean water outlet component 102, that is, includes a water inlet and outlet pin structure 1031 that is engaged with a through hole (not shown in the drawings) on the fixing base 101, a pressing spring 107 that makes the water inlet and outlet pin structure in a protruding trend, and a limiting component or structure 1011 that defines a protruding position of the water inlet and outlet pin structure 1031, where when the water inlet and outlet pin structure 1021 is pressed to move, the water inlet and outlet pin structure 1031 and the through hole form a sewage channel (not shown in the drawings). Specifically, the position limiting component or structure 1011 is disposed on one side of the through hole. The water inlet and outlet thimble structure 1031 includes a body notch 10311 with a notch and a water inlet and outlet switch component 10212 extending outward from the body notch 10311, and a through-flow hole 10213 forming a part of a sewage passage is arranged between the water inlet and outlet switch component 10212 and the body notch 10311. A water inlet and outlet sealing structure is arranged between the water outlet switch component 10212 and the limiting component or structure 1011, the water inlet and outlet sealing structure comprises a sealing ring 108 fixed on an annular mounting groove (not shown in the figure), the sealing ring 108 is provided with an opening 1084, and the opening 1084 and the inner end wall of the fixed seat 101 form a communicating gap to form a part of a sewage channel (not shown in the figure). The two sides of the sealing ring 108 in the diameter vertical direction are respectively provided with an extending portion, i.e. a first extending portion 1081 and a second extending portion 1082, a protrusion 1083 is provided in the diameter direction, the protrusion 1083 is located between the first extending portion 1081 and the second extending portion 1082, the protrusion 1083 is provided with a sealing mating surface (not shown in the drawings), and the sealing mating surface is matched with the limiting component or structure 1011 for sealing. The structure of the sewage access assembly 103 is different from that of the clean water output assembly 102 in that the water inlet and outlet thimble structure 1031 includes a body notch 10311 with a notch, and a bypass channel (not shown in the drawings) with a circuitous structure is further disposed in the body notch 10311, and the bypass channel can still be used as a part of the sewage channel.

As a further improved embodiment, the sealing engagement surface is a chamfer.

It should be noted that, the aforementioned water inlet and outlet thimble structure 1021, water inlet and outlet switch component 10212, and water inlet and outlet thimble structure 1031, which may also be referred to as water inlet thimble structure 1021 or water outlet thimble structure 1021, water inlet switch component 10212 or water outlet switch component 10212, water inlet thimble structure 1031, or water outlet thimble structure 1031, do not affect the technical essence expressed by those skilled in the art throughout the present application, and the usage of the relevant components for "water inlet" or "water outlet" is expressed by the suggestive neutral words, and all the components with the "inlet and outlet" qualifiers have the function of conveying water in two directions, regardless of whether the words with the directional attributes are used to express the role of the components. Other name replacements or any changes and modifications of the similar structure to achieve the technical purpose or the technical effect of the communication are within the protection scope of the present application.

As a further improved embodiment, a guiding structure is provided between the fixing base 101 and the main body 10211 for making the telescopic movement thereof more stable, and the guiding structure includes a guiding groove (not shown in the drawings) provided on the fixing base 101 and a guiding bar (not shown in the drawings) provided on the main body 10211, or a guiding groove provided on the main body and a guiding bar provided on the fixing base, and the guiding groove is matched with the guiding bar.

Specifically, as shown in fig. 3 to 7, the clean water output assembly 102 and the sewage inlet assembly 103 of the water inlet and outlet mechanism 10 are elastically clamped between the fixing base 101 and the mounting base 104, one end of the pressing spring 107 abuts against the water inlet and outlet thimble 1021, the other end of the pressing spring abuts against the mounting base 104, two ends of the fixing base 101 are open, one end with a large opening is provided with a clamping port edge (not marked in the drawings) which is expanded outwards and has a certain strength and thickness and is provided with a turnover port, one end with a small opening is sleeved on the inner wall of the mounting base 104, one side of the fixing base 101 close to the large opening is provided with a partition plate (not marked in the drawings) which blocks the opening, and the partition plate is provided with a tapered through hole which abuts against the water inlet and outlet thimble 1021; the sealing backing plate 105 is clamped between the end face of the small opening end of the fixed seat 101 and the inner bottom wall of the mounting seat 104, the sealing backing plate 105 is made of elastic materials, and after the fixed seat 101 and the mounting seat 104 are connected in a detachable mode through fastening screws, gaps between the fixed seat 101 and the mounting seat 104 can be filled in the elastic sealing backing plate 105, and leakage is effectively prevented. The outer walls of the large opening end and the small opening end of the fixing seat 101 keep two different outer diameters, a step (not marked in the figure) for dividing the large opening end and the small opening end is inevitably arranged on the outer wall of the fixing seat 101, the lower portion of the clamping opening edge of the large opening end of the fixing seat 101 extends to the outer wall of the step for dividing the section difference and is sleeved with a sealing ring (not marked in the figure), and the sealing ring can seal a gap between the water inlet and outlet mechanism 10 and the water tank body 20 after clamping. The mounting seat 104 has an open end, an open end is sleeved with the fixing seat 101, another end is closed, but a through hole (not labeled in the figure) communicating with the clean water output assembly 102 and the sewage access assembly 103 is arranged on the closed end surface of the mounting seat 104, a water suction pipe interface 1043 is arranged on the closed end surface of the mounting seat 104 and extends outwards from the through hole of the clean water output assembly 102, a water suction pipe 106 for sucking water contained in the water tank body 20 is sleeved on the water suction pipe interface 1043, a circle of semi-elliptical filtering eave assembly sealing eave 1042 is arranged around the water suction pipe interface 1043 and extends outwards from the closed end surface of the mounting seat 104, two buckles are arranged beside the semi-elliptical straight edge 1044 of the filtering assembly sealing eave 1042, a buckle barb 5 is arranged outwards from the filtering assembly sealing eave 1042 at the side facing the elliptical filtering assembly sealing eave, a sleeve assembly sealing eave is sleeved on the filtering assembly sealing eave 1042 at one end, a sleeve assembly sleeving assembly 10440 with a hollow buckle is arranged on the filtering eave surface of the filtering assembly 1047, and a filtering assembly is arranged on the filtering eave assembly 1047, and a filtering orifice 1047 is arranged on the filtering assembly (the filtering eave coupling structure) (fig. the filtering eave coupling component 1047 is arranged on the filtering assembly 1047 and the filtering orifice of the filtering assembly. A suction pipe 106 is sleeved on the suction pipe interface 1043, and the suction pipe 106 extends to an area close to the bottom wall of the filter assembly 40, so that the water filtered in the filter assembly 40 in the inside and outside pressure equalization water tank device 1 can still be sucked by the suction pipe 106 when the water inlet and outlet mechanism 10 faces upward, and this sucking state is maintained until the water level of the filtered water in the filter assembly 40 is lower than the lowest opening (not shown) of the suction pipe 106. A sewage return port (not shown in the figure) communicated with the sewage access assembly 103 is further arranged outside the filtering assembly sealing brim 1042 on the end surface of the closed end of the mounting seat 104, the cleaned sewage of the cleaner passes through the return water channel and then enters the containing cavity in the internal and external pressure equalization water tank device 1 through the sewage return port 1045, the sewage is filtered by the filtering assembly 40, then is sucked into the clear water channel through the water suction pipe 106, and finally is sent out to the water outlet passage (not shown in the figure) of the cleaner through the clear water output assembly 102. A vent hole 1041 is further arranged in the filter assembly sealing brim 1042 on the end face of the closed end of the mounting seat 104, the vent hole 1041 can enable the water inlet and outlet mechanism 10 to face upward, when the pressure relief mechanism 30 loses the pressure regulating function, the internal and external pressure equalization water tank device 1 still has a pressure relief channel capable of slightly regulating the air pressure inside and outside the pressure relief water tank device, when the water inlet and outlet mechanism 10 faces downward and the water level of the water in the filter assembly 40 is lower than the highest opening of the water suction pipe 106, the water still can enter the clear water channel through the vent hole 1041 and then is sent out to a water outlet passage (not marked in the figure) of the cleaner through the clear water output assembly 102. The mounting seat 104 with be equipped with a direction muscle 1046 on the outer wall of water tank body 20 complex, this direction muscle 1046 helps the convenient card of the business turn over water mechanism 10 of installation to go into the water tank body 20, because business turn over water mechanism 10 with water tank body 20 complex outer wall is the shape of regular symmetry, has set up can also play the effect of preventing joining conversely behind the direction muscle 1046.

Specifically, the water tank body 20 includes an upper water tank body (not shown in the drawings) and a lower water tank body (not shown in the drawings), the upper water tank body and the lower water tank body are connected in a sealing manner, a side surface of the lower water tank body extending upward from the bottom of the lower water tank body is an inclined surface (not shown in the drawings), an inner concave clamping portion 201 convenient for installation and fixation is arranged at the top end of the inclined surface and at the end of one side opposite to the water inlet and outlet mechanism 10, and an inner concave clamping groove 202 is formed in the clamping portion. When the internal and external pressure equalization water tank device 1 is fixed, the corresponding buckle on the cleaner can be buckled in the clamping groove 202 of the clamping part 201, and the internal and external pressure equalization water tank device 1 needs to be taken out by loosening the corresponding buckle, so that the internal and external pressure equalization water tank device 1 can be taken out. In a further improved embodiment, the tank upper body and the tank lower body are hermetically connected by an ultrasonic welding layer (not shown).

As a further improved embodiment, the upper water tank body and the lower water tank body are hermetically connected through a two-time injection molding process.

As a further improved embodiment, the upper water tank body and the lower water tank body are hermetically connected through a direct bonding process.

Specifically, as shown in fig. 8, when the water inlet and outlet mechanism 10 of the internal and external pressure equalization water tank device 1 is inclined downward, a part of the pressure relief mechanism 30 is located above the liquid level H on a side away from the water inlet and outlet mechanism 10, and no matter whether the opening of the suction pipe 106 is always located below the liquid level H, the pressure relief water tank device 1 still has the capability of releasing pressure to the outside of the pressure relief water tank device and also has the capability of continuously outputting clean water to the outside. When the water inlet of the suction pipe 106 is below the liquid level H, the natural suction pipe 106 can realize the effect of discharging water outwards. When the water inlet of the suction pipe 106 is above the liquid level H, the air hole 1041 of the water inlet and outlet mechanism 10 is lower than the liquid level H and is only a tiny bypass branch of the water outlet channel 1024, and the bypass branch of the water through hole 1041 can realize the effect of "discharging water outwards" under the pressure of the liquid level H. Meanwhile, since the internal and external pressure equalizing water tank device 1 has a pressure difference between the inside and outside, the internal and external pressure equalizing water tank device 1 of the cleaner used in such a posture has the capability of supplying and discharging pressure to the outside.

Specifically, as shown in fig. 9, when the water inlet and outlet mechanism 10 of the internal and external pressure-equalizing water tank device 1 is inclined upward, a part of the pressure relief mechanism 30 is located above the liquid level H at a side close to the water inlet and outlet mechanism 10, at this time, the opening of the suction pipe 106 is lower than the liquid level H, and under the combined action of water pressure and air pressure, the pressure is directly released out of the internal and external pressure-equalizing water tank device 1 through the pressure relief mechanism 30 and along a pressure relief pipeline. Meanwhile, the vent hole 1041 of the water inlet and outlet mechanism 10 is higher than the liquid level H and is only a very small bypass branch of the water outlet channel 1024, the vent hole 1041 is communicated with the outside atmosphere, a bypass structure (not shown in the drawings) for blocking the water flow from the bypass branch of the vent hole 1041 is arranged in front of the vent hole 1041, and simply, the bypass branch of the vent hole 1041 communicated with the outside atmosphere can realize the efficacy of "air permeability and water impermeability". At this time, the bypass branch of the vent hole 1041 communicating with the outside atmosphere has the capability of releasing the pressure to the outside of the water supply apparatus. Meanwhile, because the pressure difference exists between the inside and the outside of the internal and external pressure equalizing water tank device 1, and the water inlet and/or the water absorbing hole (not shown in the figure) which is positioned below the liquid level H is always arranged on the water absorbing pipe 106, the clean water output assembly can continuously output the clean water outwards. The internal and external pressure equalizing water tank device 1 of the cleaner used in such a posture has the capability of releasing pressure to the outside of the water tank and the capability of continuously outputting clean water to the outside. Of course, when the liquid level H is lower than the water inlet opening of the suction pipe 106, naturally, the internal and external pressure equalization water tank device 1 cannot continuously output clean water to the outside, and at this time, the user is reminded to add clean water to the internal and external pressure equalization water tank device 1 by himself so as to continue to use the cleaner.

The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit or scope of the present invention.

Claims (15)

1. The water tank device is characterized in that the pressure relief mechanism comprises a pressure relief pipe connected with the water inlet and outlet mechanism, the free end of the pressure relief pipe is provided with a buoyancy component capable of adjusting air pressure in the water tank body, and the pressure relief pipe is provided with a flexible structure between the water inlet and outlet mechanism and the buoyancy component.

2. The inside and outside pressure equalizing water tank device as recited in claim 1, wherein said buoyant member comprises a buoyant ball capable of venting air pressure to the tank body through said pressure relief tube.

3. The inside and outside pressure equalizing water tank apparatus as claimed in claim 2, wherein the buoyant ball is provided with a branch pipe, one end of the branch pipe extends out of a fixed end of the buoyant ball fixed to the pressure relief pipe and a free end flush with the buoyant ball, the free end is provided with a first pressure relief port, and one or more protrusions are provided beside the first pressure relief port to prevent the first pressure relief port from being filled with liquid.

4. The inside and outside pressure equalizing water tank apparatus as in claim 3, wherein said plurality of protrusions detachably fix a strainer assembly, said strainer assembly covering said first pressure relief opening.

5. The inside and outside pressure equalizing water tank device as in claim 3, wherein the buoyant spheres are provided with cavities, and the branch pipes penetrate through the buoyant spheres to form closed cavities.

6. The inside and outside pressure equalizing water tank apparatus as claimed in claim 3, wherein said protrusion is provided with a second pressure relief opening communicating with said first pressure relief opening, said second pressure relief opening being capable of being submerged in a liquid or floating on a liquid surface.

7. The inside and outside pressure equalizing water tank device as defined in claim 3, wherein said branch pipes are arranged along the diameter direction of said buoyant spheres.

8. The inside and outside pressure equalization water tank device according to claim 1, wherein the water inlet and outlet mechanism comprises a mounting seat and a fixed seat arranged in the mounting seat, and the fixed seat is respectively provided with a clean water output assembly capable of forming a clean water output channel after being pressed and a sewage access assembly capable of forming a sewage input channel after being pressed, wherein the clean water output assembly comprises a water outlet thimble structure matched with the through hole on the fixed seat, a jacking spring for enabling the water outlet thimble structure to be in an extending trend, and a limiting component for limiting the extending position of the water outlet thimble structure, and when the water outlet thimble structure is pressed and moved, the water outlet thimble structure and the through hole form a clean water output channel.

9. The inside and outside pressure equalization water tank device as claimed in claim 8, wherein the water outlet thimble structure comprises a body and a water outlet switch member disposed on the body, and an overflowing hole forming a part of the clean water output channel is disposed between the water outlet switch member and the body.

10. The inside and outside pressure equalizing water tank device as recited in claim 9, wherein a water outlet sealing structure is provided between said water outlet switch member and said limit member.

11. The inside and outside pressure equalizing water tank device as recited in claim 10, wherein the outlet sealing structure comprises a sealing ring fixed in the annular mounting groove, the sealing ring is provided with a gap, and the gap forms a part of the clean water outlet channel with the end of the fixed seat to form a communicating gap.

12. The inside and outside pressure equalizing water tank device as defined in claim 11, wherein said gasket has extensions on both sides in a diametrical direction, and has a protrusion in a diametrical direction, the protrusion having a sealing engagement surface.

13. The inside and outside pressure equalizing water tank device as in claim 12, wherein said sealing engagement surface is beveled.

14. The inside and outside pressure equalizing water tank device as in claim 9, wherein a guide structure is provided between the fixed base and the body.

15. The inside and outside pressure equalizing water tank device as in claim 14, wherein the guide structure comprises a guide groove provided in the fixing base and a guide bar provided in the body, or a guide groove provided in the body and a guide bar provided in the fixing base, the guide groove being engaged with the guide bar.

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